:root {
    --bg-color: #0b1120;
    --bg-alt: #0f172a;
    --acc-color: #38bdf8;
    --text-main: #f8fafc;
    --text-sec: #94a3b8;
    --glass-bg: rgba(15, 23, 42, 0.7);
    --border-color: rgba(56, 189, 248, 0.2);
    --photo-frame: #13233f;
    --font-head: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    isolation: isolate;
}

canvas#bg-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -2;
    opacity: 0.45;
}

.bg-3d-scene {
    position: fixed;
    inset: 0;
    z-index: -3;
    pointer-events: none;
    overflow: hidden;
    transform-style: preserve-3d;
    perspective: 1200px;
}

.bg-orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(0.5px);
    transform-style: preserve-3d;
}

.orb-a {
    width: min(48vw, 520px);
    height: min(48vw, 520px);
    top: -12%;
    left: -8%;
    background: radial-gradient(circle at 30% 35%, rgba(56, 189, 248, 0.35), rgba(56, 189, 248, 0.02) 65%, transparent 75%);
    animation: orbFloatA 16s ease-in-out infinite alternate;
}

.orb-b {
    width: min(38vw, 430px);
    height: min(38vw, 430px);
    bottom: -16%;
    right: -8%;
    background: radial-gradient(circle at 60% 45%, rgba(45, 212, 191, 0.26), rgba(45, 212, 191, 0.03) 65%, transparent 80%);
    animation: orbFloatB 20s ease-in-out infinite alternate;
}

.orb-c {
    width: min(26vw, 320px);
    height: min(26vw, 320px);
    top: 35%;
    left: 58%;
    background: radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.22), rgba(14, 165, 233, 0.01) 62%, transparent 78%);
    animation: orbFloatC 13s ease-in-out infinite alternate;
}

@keyframes orbFloatA {
    0% {
        transform: translate3d(0, 0, -20px) rotateX(4deg) rotateY(-8deg);
    }
    100% {
        transform: translate3d(4%, 6%, 90px) rotateX(-6deg) rotateY(10deg);
    }
}

@keyframes orbFloatB {
    0% {
        transform: translate3d(0, 0, -30px) rotateX(-8deg) rotateY(4deg);
    }
    100% {
        transform: translate3d(-6%, -8%, 120px) rotateX(10deg) rotateY(-8deg);
    }
}

@keyframes orbFloatC {
    0% {
        transform: translate3d(0, 0, -15px) rotateX(4deg) rotateY(6deg);
    }
    100% {
        transform: translate3d(-8%, 10%, 80px) rotateX(-6deg) rotateY(-7deg);
    }
}

.tilt-3d {
    transform-style: preserve-3d;
    transition: transform 0.22s ease, box-shadow 0.25s ease;
    will-change: transform;
}

.tilt-3d > * {
    transform: translateZ(24px);
}

@media (max-width: 768px) {
    .orb-a {
        width: 70vw;
        height: 70vw;
    }

    .orb-b {
        width: 56vw;
        height: 56vw;
    }

    .orb-c {
        width: 40vw;
        height: 40vw;
        left: 50%;
    }
}

@media (prefers-reduced-motion: reduce) {
    .bg-orb {
        animation: none !important;
    }

    .tilt-3d,
    .tilt-3d > * {
        transition: none !important;
        transform: none !important;
    }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-head);
    font-weight: 700;
}

a {
    text-decoration: none;
    color: var(--acc-color);
    transition: all 0.3s ease;
}

a:hover {
    filter: brightness(1.2);
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 2rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 4px;
    background: var(--acc-color);
    border-radius: 2px;
}

section {
    padding: 100px 0;
    position: relative;
    z-index: 10;
}

.section-alt {
    background-color: var(--bg-alt);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
}

/* Navbar */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    backdrop-filter: blur(10px);
    background-color: var(--glass-bg);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 1rem 0;
    transition: all 0.3s;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-head);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-main);
}

.logo span {
    color: var(--acc-color);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.25rem;
}

.nav-links li a {
    color: var(--text-sec);
    font-weight: 500;
    font-size: 0.9rem;
    transition: color 0.3s;
    white-space: nowrap;
}

.nav-links li a:hover,
.nav-links li a.active {
    color: var(--acc-color);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
}

.mobile-menu-btn .bar {
    display: block;
    width: 25px;
    height: 3px;
    margin: 5px auto;
    background-color: var(--text-main);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: flex-start;
    padding-top: 88px;
    padding-bottom: 72px;
}

.hero-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: grid;
    grid-template-columns: minmax(0, 1.15fr) minmax(320px, 0.85fr);
    align-items: center;
    gap: clamp(2rem, 4vw, 4rem);
}

.hero-text {
    max-width: 680px;
    padding-top: 1rem;
}

.glitch {
    font-size: 3.5rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.title-credentials {
    font-size: 0.68em;
    font-weight: 600;
    color: var(--text-sec);
    letter-spacing: 0.01em;
}

.tagline {
    font-size: 1.35rem;
    color: var(--acc-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.hero-role {
    font-size: 1.1rem;
    color: var(--acc-color);
    font-weight: 600;
    margin-bottom: 0.2rem;
}

.hero-affiliation {
    color: var(--text-main);
    margin-bottom: 0.85rem;
}

.bio-summary {
    font-size: 1rem;
    color: var(--text-sec);
    max-width: 650px;
    margin-bottom: 1.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    margin-bottom: 1.2rem;
}

.btn {
    padding: 0.8rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    font-family: var(--font-head);
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    display: inline-block;
}

.primary-btn {
    background-color: var(--acc-color);
    color: #0b1120;
}

.primary-btn:hover {
    background-color: #7dd3fc;
    box-shadow: 0 0 15px rgba(56, 189, 248, 0.4);
}

.secondary-btn {
    background-color: transparent;
    color: var(--acc-color);
    border: 2px solid var(--acc-color);
}

.secondary-btn:hover {
    background-color: rgba(56, 189, 248, 0.1);
}

.news-box {
    background: rgba(15, 23, 42, 0.8);
    border-left: 4px solid var(--acc-color);
    padding: 1rem;
    border-radius: 4px;
    display: flex;
    align-items: center;
    gap: 1rem;
}

.highlights-box {
    background: rgba(15, 23, 42, 0.78);
    border: 1px solid var(--border-color);
    border-left: 4px solid var(--acc-color);
    border-radius: 8px;
    padding: 1rem 1rem 1rem 1.1rem;
    max-width: 690px;
}

.highlights-box h3 {
    margin-bottom: 0.65rem;
    font-size: 1.05rem;
}

.highlights-box p {
    color: var(--text-sec);
    margin: 0;
}

.highlights-list {
    margin-left: 1rem;
    color: var(--text-sec);
    display: grid;
    gap: 0.45rem;
}

.highlights-list li {
    line-height: 1.45;
    font-size: 0.93rem;
}

.news-box p {
    margin: 0;
}

.news-badge {
    background: var(--acc-color);
    color: #0b1120;
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
}

.hero-image {
    display: flex;
    justify-content: center;
    align-self: flex-start;
    padding-top: 0;
    margin-top: 18px;
}

.img-wrapper {
    width: min(100%, 390px);
    aspect-ratio: 1 / 1;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
    border: 8px solid var(--photo-frame);
    box-shadow: 0 0 30px rgba(56, 189, 248, 0.2);
}

.img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s;
}

.img-wrapper:hover img {
    transform: scale(1.05);
}

.quick-pubs-modal {
    position: fixed;
    inset: 0;
    display: none;
    z-index: 1300;
}

.quick-pubs-modal.open {
    display: block;
}

.quick-pubs-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(2, 8, 23, 0.72);
    backdrop-filter: blur(4px);
}

.quick-pubs-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: min(780px, 96vw);
    max-height: min(88vh, calc(100dvh - 2rem));
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
    background: linear-gradient(140deg, rgba(15, 23, 42, 0.96), rgba(8, 14, 32, 0.96));
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: 0 24px 80px rgba(2, 8, 23, 0.5);
    z-index: 1301;
}

.quick-pubs-close {
    position: absolute;
    top: 0.6rem;
    right: 0.8rem;
    font-size: 1.8rem;
    line-height: 1;
    border: none;
    background: transparent;
    color: var(--text-sec);
    cursor: pointer;
}

.quick-pubs-close:hover {
    color: var(--acc-color);
}

.quick-pubs-note {
    color: var(--text-sec);
    margin-bottom: 0.8rem;
}

.quick-pubs-list {
    margin: 0 0 1.2rem 1rem;
    display: grid;
    gap: 0.55rem;
    color: var(--text-main);
}

.quick-pubs-list a {
    text-decoration: underline;
}

/* About Section */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
}

.about-grid.long-bio-expanded {
    grid-template-columns: 1fr;
}

.about-text h3, .lab-highlight h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-main);
}

.about-text p, .lab-highlight p {
    color: var(--text-sec);
    margin-bottom: 1rem;
}

.long-bio-toggle {
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid var(--border-color);
    padding: 0.55rem 0.85rem;
    margin: 0.35rem 0 1rem;
    color: var(--text-main);
    font-family: var(--font-head);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 999px;
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    transition: all 0.25s ease;
}

.long-bio-toggle::before {
    content: '+';
    color: var(--acc-color);
    font-size: 1.1rem;
    line-height: 1;
}

.long-bio-toggle:hover {
    border-color: var(--acc-color);
    transform: translateY(-1px);
}

.long-bio-toggle[aria-expanded="true"]::before {
    content: '-';
}

.long-bio-content {
    opacity: 0;
    transform: translateY(16px) scale(0.985);
    transform-origin: top center;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.42s ease, transform 0.42s ease, max-height 0.52s ease;
    pointer-events: none;
    position: relative;
}

.long-bio-content.is-open {
    opacity: 1;
    transform: translateY(0) scale(1);
    max-height: 2600px;
    pointer-events: auto;
}

.long-bio-shell {
    margin-top: 0.25rem;
    position: relative;
    padding: 1.15rem;
    border-radius: 14px;
    border: 1px solid var(--border-color);
    background: linear-gradient(145deg, rgba(10, 22, 45, 0.72), rgba(10, 18, 35, 0.72));
    overflow: hidden;
}

.long-bio-shell::before {
    content: '';
    position: absolute;
    inset: -45% -35%;
    background:
        conic-gradient(from 0deg, rgba(56, 189, 248, 0.25), transparent 28%, rgba(45, 212, 191, 0.2) 54%, transparent 78%, rgba(56, 189, 248, 0.25));
    filter: blur(14px);
    animation: longBioSpin 13s linear infinite;
}

.long-bio-shell > * {
    position: relative;
    z-index: 1;
}

.long-bio-kicker,
.long-bio-metrics span,
.bio-node {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.36s ease, transform 0.36s ease;
}

.long-bio-content.is-open .long-bio-kicker,
.long-bio-content.is-open .long-bio-metrics span,
.long-bio-content.is-open .bio-node {
    opacity: 1;
    transform: translateY(0);
}

.long-bio-content.is-open .long-bio-kicker { transition-delay: 0.08s; }
.long-bio-content.is-open .long-bio-metrics span:nth-child(1) { transition-delay: 0.12s; }
.long-bio-content.is-open .long-bio-metrics span:nth-child(2) { transition-delay: 0.16s; }
.long-bio-content.is-open .long-bio-metrics span:nth-child(3) { transition-delay: 0.2s; }
.long-bio-content.is-open .long-bio-metrics span:nth-child(4) { transition-delay: 0.24s; }
.long-bio-content.is-open .bio-node:nth-child(1) { transition-delay: 0.26s; }
.long-bio-content.is-open .bio-node:nth-child(2) { transition-delay: 0.32s; }
.long-bio-content.is-open .bio-node:nth-child(3) { transition-delay: 0.38s; }
.long-bio-content.is-open .bio-node:nth-child(4) { transition-delay: 0.44s; }

.long-bio-kicker {
    color: var(--acc-color);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-size: 0.76rem;
    margin-bottom: 0.65rem;
}

.long-bio-metrics {
    display: flex;
    flex-wrap: wrap;
    gap: 0.45rem;
    margin-bottom: 0.95rem;
}

.long-bio-metrics span {
    font-size: 0.78rem;
    color: var(--text-main);
    padding: 0.35rem 0.65rem;
    border-radius: 999px;
    border: 1px solid var(--border-color);
    background: rgba(56, 189, 248, 0.12);
}

.long-bio-stream {
    display: grid;
    gap: 0.75rem;
}

.bio-node {
    padding: 0.8rem 0.9rem 0.75rem;
    border-radius: 11px;
    background: rgba(8, 15, 30, 0.68);
    border: 1px solid rgba(56, 189, 248, 0.18);
    box-shadow: inset 0 0 0 1px rgba(148, 163, 184, 0.05);
    backdrop-filter: blur(1px);
    position: relative;
}

.bio-node::before {
    content: '';
    position: absolute;
    left: -8px;
    top: 12px;
    width: 6px;
    height: calc(100% - 24px);
    border-radius: 999px;
    background: linear-gradient(180deg, rgba(56, 189, 248, 0.9), rgba(45, 212, 191, 0.35));
}

.bio-node h4 {
    font-size: 0.96rem;
    color: var(--text-main);
    margin-bottom: 0.35rem;
}

.bio-node p {
    color: var(--text-sec);
    margin-bottom: 0;
    line-height: 1.56;
    font-size: 0.95rem;
}

@keyframes longBioSpin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.lab-highlight {
    background: rgba(56, 189, 248, 0.05);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    transition: opacity 0.45s ease, transform 0.45s ease, max-height 0.45s ease, padding 0.45s ease, margin 0.45s ease, border-width 0.45s ease;
    max-height: 800px;
    overflow: hidden;
}

.about-grid.long-bio-expanded .lab-highlight {
    opacity: 0;
    transform: translateX(18px);
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
    margin: 0;
    border-width: 0;
    pointer-events: none;
}

.about-text.long-bio-animated {
    position: relative;
    isolation: isolate;
    overflow: hidden;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 1.2rem 1.2rem 0.8rem;
    background: rgba(15, 23, 42, 0.35);
}

.about-text.long-bio-animated::before {
    content: '';
    position: absolute;
    inset: -35%;
    z-index: 0;
    background:
        radial-gradient(circle at 20% 25%, rgba(56, 189, 248, 0.28), transparent 43%),
        radial-gradient(circle at 78% 36%, rgba(45, 212, 191, 0.22), transparent 40%),
        radial-gradient(circle at 50% 80%, rgba(14, 165, 233, 0.2), transparent 45%);
    filter: blur(16px);
    animation: bioAuroraShift 9.5s ease-in-out infinite alternate;
}

.about-text.long-bio-animated::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        repeating-linear-gradient(125deg, rgba(56, 189, 248, 0.12) 0 2px, transparent 2px 15px),
        repeating-linear-gradient(-35deg, rgba(45, 212, 191, 0.08) 0 1px, transparent 1px 13px);
    opacity: 0.25;
    animation: bioGridDrift 14s linear infinite;
}

.about-text.long-bio-animated > * {
    position: relative;
    z-index: 1;
}

@keyframes bioAuroraShift {
    0% {
        transform: translate3d(-2%, -3%, 0) scale(1) rotate(0deg);
    }
    100% {
        transform: translate3d(3%, 2%, 0) scale(1.08) rotate(6deg);
    }
}

@keyframes bioGridDrift {
    0% {
        transform: translate3d(0, 0, 0);
    }
    100% {
        transform: translate3d(30px, -22px, 0);
    }
}

.inline-link {
    font-weight: 600;
    margin-top: 1rem;
    display: inline-block;
}

/* Research Section */
.research {
     width: 100%;
     max-width: 1200px;
     margin: 0 auto;
     padding: 100px 2rem;
}

.grid-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.card {
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    padding: 2.5rem;
    border-radius: 10px;
}

.card h3 {
    font-size: 1.8rem;
    margin-bottom: 1.5rem;
}

.custom-list {
    list-style: none;
}

.custom-list li {
    position: relative;
    padding-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-sec);
}

.custom-list li::before {
    content: '▹';
    position: absolute;
    left: 0;
    color: var(--acc-color);
}

.student-category {
    margin-bottom: 1.5rem;
}

.student-category h4 {
    color: var(--acc-color);
    margin-bottom: 0.5rem;
}

.student-category p {
    color: var(--text-sec);
}

/* Research Hub (Research Page) */
.research-hub .section-title {
    margin-bottom: 1.25rem;
}

.research-topic-tabs {
    margin-bottom: 1.35rem;
}

.research-overview-note {
    width: min(680px, 100%);
    margin: 0;
    padding: 1.6rem 1.5rem;
    border: 2px solid #0b3750;
    background: linear-gradient(145deg, #0c5678, #0f6a93);
    color: #eff8ff;
    font-size: 1.12rem;
    line-height: 1.52;
    position: relative;
    box-shadow: 0 16px 36px rgba(2, 30, 48, 0.45);
}

.research-overview-note::before {
    content: '';
    position: absolute;
    width: 220px;
    height: 115px;
    left: -184px;
    top: -46px;
    background: linear-gradient(145deg, #0b5a7f, #0f6a93);
    border: 3px solid #0b3750;
    border-right: none;
    clip-path: polygon(0 0, 100% 100%, 0 100%);
}

.research-tab-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.5rem 0.95rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.28s ease;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.9rem;
}

.research-tab-btn.active,
.research-tab-btn:hover {
    background: rgba(56, 189, 248, 0.14);
    border-color: var(--acc-color);
    color: var(--acc-color);
}

.research-switcher {
    position: relative;
}

.research-filter-item {
    background: linear-gradient(150deg, rgba(12, 20, 40, 0.88), rgba(7, 14, 30, 0.92));
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 14px;
    padding: 1.45rem 1.35rem;
    display: none;
    min-height: 280px;
}

.research-filter-item.is-visible-panel {
    display: block;
    animation: researchPanelIn 0.35s ease;
}

.research-filter-item h3 {
    margin-bottom: 0.95rem;
    font-size: 1.34rem;
}

.research-filter-item p {
    color: var(--text-sec);
}

@keyframes researchPanelIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-bottom: 0.95rem;
}

.chip-list span {
    display: inline-flex;
    align-items: center;
    padding: 0.35rem 0.72rem;
    border-radius: 999px;
    border: 1px solid rgba(56, 189, 248, 0.35);
    background: rgba(56, 189, 248, 0.12);
    color: #d7f2ff;
    font-size: 0.85rem;
    font-weight: 600;
}

.research-list {
    margin: 0;
    padding-left: 1.1rem;
    color: var(--text-sec);
    display: grid;
    gap: 0.68rem;
}

.research-list li::marker {
    color: var(--acc-color);
}

.research-areas-showcase {
    display: grid;
    grid-template-columns: 1.08fr 0.92fr;
    gap: 1.2rem;
    align-items: stretch;
    margin-bottom: 1rem;
}

.research-areas-text {
    border: 1px solid rgba(56, 189, 248, 0.22);
    border-radius: 12px;
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.08), rgba(15, 23, 42, 0.5));
    padding: 1rem 1rem 0.9rem;
    height: 100%;
}

.research-areas-intro {
    margin-bottom: 0.75rem;
    color: #d9f5ff;
    font-size: 0.96rem;
    line-height: 1.5;
}

.research-areas-points {
    margin: 0;
    padding-left: 0;
    list-style: none;
    display: grid;
    gap: 0.45rem;
}

.research-areas-points li {
    color: #e7edf7;
    font-size: 1rem;
    line-height: 1.45;
    font-weight: 520;
    position: relative;
    padding-left: 1rem;
}

.research-areas-points li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0.62rem;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--acc-color);
    box-shadow: 0 0 0 4px rgba(56, 189, 248, 0.18);
}

.research-areas-image-box {
    margin: 0;
    border: 1px solid rgba(56, 189, 248, 0.28);
    border-radius: 12px;
    padding: 0.5rem;
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.11), rgba(15, 23, 42, 0.75));
    box-shadow: 0 16px 28px rgba(2, 6, 23, 0.45);
    height: 100%;
}

.research-areas-image-box img {
    width: 100%;
    height: 100%;
    display: block;
    border-radius: 8px;
    object-fit: cover;
}

.research-overview-shell {
    display: grid;
    gap: 1rem;
}

.overview-pillars-title {
    text-transform: uppercase;
    letter-spacing: 0.06em;
    font-weight: 800;
    color: #c6f1ff;
    font-family: var(--font-head);
    text-align: center;
    padding-top: 0.2rem;
}

.overview-pillars-grid {
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 0.8rem;
}

.overview-pillar-card {
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.12), rgba(15, 23, 42, 0.58));
    border: 1px solid rgba(56, 189, 248, 0.22);
    border-radius: 12px;
    padding: 0.9rem 0.85rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.overview-pillar-card:hover {
    transform: translateY(-5px);
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: 0 8px 24px rgba(56, 189, 248, 0.18);
}

.pillar-icon {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.76rem;
    font-weight: 800;
    color: #0f172a;
    background: #dbeafe;
    margin: 0 auto 0.7rem;
    flex-shrink: 0;
}

.pillar-icon svg {
    width: 24px;
    height: 24px;
    display: block;
}

.pillar-icon i {
    font-size: 22px;
    line-height: 1;
}

.pillar-cp { background: #dbeafe; color: #1d4ed8; }
.pillar-ai { background: #ede9fe; color: #7c3aed; }
.pillar-ws { background: #ccfbf1; color: #0d9488; }
.pillar-cs { background: #dcfce7; color: #16a34a; }
.pillar-dm { background: #fef3c7; color: #d97706; }

.overview-pillar-card h4 {
    font-size: 1.02rem;
    margin-bottom: 0.35rem;
}

.overview-pillar-card p {
    margin: 0;
    color: #dbeafe;
    font-size: 0.9rem;
    line-height: 1.45;
}

.overview-impact-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.8rem;
}

.overview-impact-card {
    border-radius: 14px;
    padding: 1rem 0.9rem;
    background: linear-gradient(165deg, rgba(3, 27, 63, 0.98), rgba(2, 21, 50, 0.98));
    border: 1px solid rgba(56, 189, 248, 0.34);
    box-shadow: inset 0 1px 0 rgba(125, 211, 252, 0.2);
}

.overview-impact-card h4 {
    font-size: 1.2rem;
    margin-bottom: 0.2rem;
}

.impact-card-head {
    display: flex;
    align-items: center;
    gap: 0.45rem;
    line-height: 1.2;
}

.impact-title-icon {
    width: 30px;
    height: 30px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(103, 232, 249, 0.14);
    color: #a5f3fc;
    border: 1px solid rgba(165, 243, 252, 0.28);
    flex-shrink: 0;
}

.impact-title-icon svg {
    width: 18px;
    height: 18px;
    display: block;
}

.impact-title-icon i {
    font-size: 16px;
    line-height: 1;
}

.impact-sub {
    margin-bottom: 0.75rem;
    color: #a5f3fc;
    font-size: 0.88rem;
}

.impact-items,
.impact-metrics {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.55rem;
}

.impact-items div,
.impact-metrics div {
    border: 1px solid rgba(125, 211, 252, 0.25);
    border-radius: 10px;
    background: rgba(11, 33, 66, 0.74);
    padding: 0.55rem;
    min-height: 84px;
    transition: transform 0.3s cubic-bezier(0.25, 0.8, 0.25, 1), box-shadow 0.3s ease, border-color 0.3s ease;
}

.impact-items div:hover,
.impact-metrics div:hover {
    transform: translateY(-4px);
    border-color: rgba(56, 189, 248, 0.55);
    box-shadow: 0 6px 16px rgba(56, 189, 248, 0.16);
}

.impact-items div,
.impact-metrics div {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

.impact-item-icon {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.35rem;
    color: #7dd3fc;
    background: rgba(125, 211, 252, 0.12);
    border: 1px solid rgba(125, 211, 252, 0.24);
}

.impact-item-icon svg {
    width: 16px;
    height: 16px;
    display: block;
}

.impact-item-icon i {
    font-size: 14px;
    line-height: 14px;
    width: 14px;
    height: 14px;
    display: inline-block;
    text-align: center;
    vertical-align: middle;
    margin: 0;
    padding: 0;
}

.impact-items strong,
.impact-metrics strong {
    display: block;
    color: #e0f2fe;
    margin-bottom: 0.25rem;
    font-size: 0.95rem;
}

.impact-items span,
.impact-metrics span {
    color: #bfdbfe;
    font-size: 0.82rem;
    line-height: 1.35;
    display: block;
}

.impact-metrics strong {
    font-size: 1.45rem;
    line-height: 1;
    color: #67e8f9;
}

.overview-vision-strip {
    display: grid;
    grid-template-columns: 1.5fr repeat(3, 1fr);
    gap: 0.65rem;
}

.vision-main,
.vision-mini {
    border-radius: 12px;
    border: 1px solid rgba(56, 189, 248, 0.2);
    background: linear-gradient(150deg, rgba(56, 189, 248, 0.1), rgba(12, 21, 41, 0.72));
    padding: 0.82rem 0.9rem;
}

.vision-main strong {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: #a5f3fc;
}

.vision-main-head {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.vision-main p {
    margin-top: 0.4rem;
    color: #dbeafe;
    font-size: 0.9rem;
    line-height: 1.45;
}

.vision-mini {
    display: flex;
    align-items: flex-start;
    gap: 0.45rem;
    color: #dbeafe;
    font-weight: 600;
    font-size: 0.89rem;
    line-height: 1.35;
}

.vision-mini-icon {
    width: 29px;
    height: 29px;
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: #7dd3fc;
    background: rgba(125, 211, 252, 0.15);
    border: 1px solid rgba(125, 211, 252, 0.25);
    flex-shrink: 0;
}

.vision-mini-icon svg {
    width: 17px;
    height: 17px;
    display: block;
}

.vision-mini-icon i {
    font-size: 15px;
    line-height: 1;
}

.project-mini-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.85rem;
}

.project-mini-grid > div {
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.22);
    border-radius: 10px;
    padding: 0.95rem 0.85rem;
}

.project-mini-grid h4 {
    color: var(--acc-color);
    font-size: 0.98rem;
    margin-bottom: 0.3rem;
}

.project-mini-grid p {
    font-size: 0.92rem;
    line-height: 1.45;
}

.student-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.student-columns h4 {
    color: var(--acc-color);
    margin-bottom: 0.4rem;
}

.student-columns p {
    margin-bottom: 0.55rem;
}

/* Publications */
.publications .container {
    display: flex;
    flex-direction: column;
}

.pub-topics {
    margin-top: 2rem;
    order: 2;
}

.topic-tabs {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.tab-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 0.5rem 1.5rem;
    border-radius: 20px;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn.active, .tab-btn:hover {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--acc-color);
    color: var(--acc-color);
}

.pub-list h4 {
    font-size: 1.3rem;
    margin: 2rem 0 1rem;
    color: var(--text-main);
    background: var(--bg-alt);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.7rem 1rem;
}

.pub-item {
    display: flex;
    gap: 1.5rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border-left: 3px solid var(--border-color);
    border-radius: 4px;
    margin-bottom: 1rem;
    transition: all 0.3s;
}

.pub-item:hover {
    background: rgba(255, 255, 255, 0.05);
    border-left-color: var(--acc-color);
}

.pub-year {
    font-family: var(--font-head);
    font-weight: 700;
    color: var(--acc-color);
    font-size: 1.2rem;
}

.pub-authors {
    color: var(--text-sec);
    font-size: 0.9rem;
}

.pub-title {
    font-weight: 600;
    margin: 0.3rem 0;
    color: var(--text-main);
}

.pub-venue {
    font-size: 0.9rem;
    font-style: italic;
    color: var(--text-sec);
}

.pub-data-model {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 0.65rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(56, 189, 248, 0.14);
}

.pub-data-model div {
    background: rgba(56, 189, 248, 0.07);
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: 8px;
    padding: 0.65rem 0.75rem;
}

.pub-data-model span {
    display: block;
    color: var(--acc-color);
    font-family: var(--font-head);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin-bottom: 0.25rem;
    text-transform: uppercase;
}

.pub-data-model strong {
    color: var(--text-main);
    display: block;
    font-size: 0.84rem;
    line-height: 1.4;
}

.publication-impact-panel {
    margin-top: 4rem;
    padding: 2.2rem;
    border: 1px solid rgba(56, 189, 248, 0.22);
    border-radius: 16px;
    background:
        radial-gradient(circle at 10% 10%, rgba(56, 189, 248, 0.14), transparent 30%),
        radial-gradient(circle at 85% 20%, rgba(45, 212, 191, 0.12), transparent 34%),
        linear-gradient(145deg, rgba(15, 23, 42, 0.82), rgba(8, 14, 30, 0.92));
    overflow: hidden;
    position: relative;
    order: 1;
}

.publication-impact-panel::before {
    content: '';
    position: absolute;
    inset: -45%;
    background: conic-gradient(from 120deg, transparent, rgba(56, 189, 248, 0.14), transparent 30%, rgba(45, 212, 191, 0.12), transparent 62%);
    animation: impactAuraSpin 18s linear infinite;
    opacity: 0.65;
}

.publication-impact-panel > * {
    position: relative;
    z-index: 1;
}

.publication-impact-header {
    text-align: center;
    margin-bottom: 2.6rem;
}

.publication-impact-header h3 {
    font-size: clamp(1.8rem, 4vw, 3rem);
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.publication-impact-header p {
    color: var(--text-sec);
    font-size: 1.05rem;
}

.publication-impact-header::after {
    content: '';
    display: block;
    width: 90px;
    height: 4px;
    margin: 1rem auto 0;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--acc-color), #2dd4bf);
    box-shadow: 0 0 18px rgba(56, 189, 248, 0.35);
}

.publication-impact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.35rem;
}

.impact-card {
    background: rgba(15, 23, 42, 0.68);
    border: 1px solid rgba(56, 189, 248, 0.18);
    border-radius: 12px;
    padding: 1.45rem 1.35rem;
    position: relative;
    overflow: visible;
    transition: transform 0.32s ease, border-color 0.32s ease, box-shadow 0.32s ease, background 0.32s ease;
    animation: impactCardFloat 7s ease-in-out infinite;
}

.impact-card:nth-child(2) { animation-delay: 0.35s; }
.impact-card:nth-child(3) { animation-delay: 0.7s; }
.impact-card:nth-child(4) { animation-delay: 1.05s; }

.impact-card:hover {
    transform: translateY(-8px) scale(1.015);
    border-color: rgba(56, 189, 248, 0.55);
    background: rgba(15, 23, 42, 0.88);
    box-shadow: 0 18px 42px rgba(2, 8, 23, 0.38), 0 0 22px rgba(56, 189, 248, 0.14);
}

.impact-icon {
    width: 68px;
    height: 68px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: -3rem auto 1rem;
    color: var(--acc-color);
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.18), rgba(15, 23, 42, 0.95));
    border: 7px solid rgba(11, 17, 32, 0.92);
    box-shadow: 0 0 24px rgba(56, 189, 248, 0.22);
    font-size: 1.7rem;
}

.impact-card h4 {
    text-align: center;
    color: var(--text-main);
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.7rem;
}

.impact-mini-line {
    width: 54px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--acc-color), #2dd4bf);
    margin: 0 auto 1rem;
}

.impact-item {
    display: flex;
    align-items: flex-start;
    gap: 0.9rem;
    padding: 0.9rem 0;
    border-bottom: 1px solid rgba(56, 189, 248, 0.12);
}

.impact-item:last-child {
    border-bottom: none;
}

.impact-item > span,
.publication-impact-footer span {
    width: 42px;
    height: 42px;
    min-width: 42px;
    border-radius: 50%;
    background: rgba(56, 189, 248, 0.16);
    color: var(--acc-color);
    border: 1px solid rgba(56, 189, 248, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
}

.impact-item strong {
    display: block;
    color: var(--acc-color);
    font-family: var(--font-head);
    font-size: 2rem;
    line-height: 1;
    margin-bottom: 0.25rem;
}

.impact-item .impact-text-strong {
    color: var(--text-main);
    font-size: 0.98rem;
}

.impact-item p {
    color: var(--text-sec);
    font-size: 0.9rem;
    line-height: 1.4;
}

.impact-logo-list {
    display: grid;
    gap: 1.2rem;
    padding-top: 0.3rem;
}

.impact-logo-list div {
    display: flex;
    align-items: center;
    gap: 0.85rem;
}

.impact-logo-list i {
    color: var(--acc-color);
    font-size: 2rem;
}

.impact-logo-list strong,
.impact-logo-list small {
    display: block;
}

.impact-logo-list strong {
    color: var(--text-main);
    font-family: var(--font-head);
    font-size: 1.25rem;
}

.impact-logo-list small {
    color: var(--text-sec);
    font-size: 0.82rem;
}

.publication-impact-footer {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.85rem;
    margin-top: 2rem;
    color: var(--text-main);
    font-family: var(--font-head);
    font-size: 1.2rem;
}

@keyframes impactAuraSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes impactCardFloat {
    0%, 100% { translate: 0 0; }
    50% { translate: 0 -4px; }
}

/* Teaching */
.teaching {
     width: 100%;
     max-width: 1200px;
     margin: 0 auto;
     padding: 100px 2rem;
}

.teaching-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
    margin-top: 2rem;
}

.teaching-item {
    background: var(--bg-alt);
    padding: 2rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    text-align: center;
    transition: transform 0.3s;
}

.teaching-item:hover {
    transform: translateY(-5px);
}

.icon-box {
    width: 60px;
    height: 60px;
    background: rgba(56, 189, 248, 0.1);
    color: var(--acc-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 1.5rem;
}

.teaching-item h3 {
    margin-bottom: 1rem;
}

.teaching-item p {
    color: var(--text-sec);
    font-size: 0.95rem;
}

.teaching-resources {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Project / Lab Section */
.lab-overview {
    margin-bottom: 3rem;
}

.custom-tag-list {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 1rem;
}

.custom-tag-list li {
    background: rgba(56, 189, 248, 0.1);
    color: var(--acc-color);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    font-size: 0.9rem;
    border: 1px solid var(--border-color);
}

.lab-visuals {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.placeholder-box {
    background: rgba(255, 255, 255, 0.02);
    border: 2px dashed var(--border-color);
    border-radius: 10px;
    height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-sec);
    font-family: var(--font-head);
    font-size: 1.2rem;
}

/* Service & Leadership */
.services {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 100px 2rem;
}

.services-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.service-block h3 {
    color: var(--acc-color);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.service-block ul {
    list-style: none;
    color: var(--text-sec);
}

.service-block ul li {
    margin-bottom: 1rem;
    padding-left: 1.5rem;
    position: relative;
}

.service-block ul li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--acc-color);
}

.hero-glass {
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.1), rgba(15, 23, 42, 0.8));
    border: 1px solid rgba(56, 189, 248, 0.3);
    padding: 3rem;
    border-radius: 15px;
    backdrop-filter: blur(10px);
    text-align: center;
}

.hero-glass h3 {
    font-size: 2rem;
    margin-bottom: 2rem;
}

.opening-items {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    text-align: left;
    margin-bottom: 2rem;
}

.opening h4,
.opening h3 {
    color: var(--text-main);
    margin-bottom: 0.5rem;
}

.opening p {
    color: var(--text-sec);
}

/* Full Services Page */
.services-page {
    padding-top: 130px;
}

.services-hero {
    margin-bottom: 2rem;
    max-width: 920px;
}

.services-kicker {
    color: var(--acc-color);
    font-family: var(--font-head);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    margin-bottom: 0.35rem;
    text-transform: uppercase;
}

.services-hero .section-title {
    margin-bottom: 1.1rem;
}

.services-hero .section-subtitle {
    color: var(--text-sec);
    font-size: 1.02rem;
    line-height: 1.65;
    max-width: 860px;
}

.services-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    margin-top: 1.25rem;
}

.services-stats span,
.service-chip-list li {
    border: 1px solid var(--border-color);
    border-radius: 999px;
    background: rgba(56, 189, 248, 0.09);
    color: var(--text-main);
    font-family: var(--font-head);
    font-size: 0.78rem;
    font-weight: 700;
    padding: 0.38rem 0.72rem;
}

.services-tabs {
    margin-bottom: 1.4rem;
}

.services-switcher {
    display: grid;
    gap: 1.2rem;
}

.services-switcher .service-panel {
    padding: 2rem;
    transition: border-color 0.28s ease, box-shadow 0.28s ease, transform 0.28s ease;
}

.services-switcher .service-panel:hover {
    border-color: rgba(56, 189, 248, 0.42);
    box-shadow: 0 14px 34px rgba(2, 8, 23, 0.24);
    transform: translateY(-2px);
}

.service-panel h2 {
    color: var(--text-main);
    font-size: 1.65rem;
    margin-bottom: 1.35rem;
}

.service-timeline-list {
    display: grid;
    gap: 0.8rem;
    list-style: none;
}

.service-timeline-list li,
.editorial-list > div,
.service-record-grid > div {
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-left: 4px solid var(--acc-color);
    border-radius: 10px;
    padding: 1rem 1.1rem;
    transition: background 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease, transform 0.28s ease;
}

.service-timeline-list strong,
.service-record-grid strong,
.editorial-list strong {
    color: var(--text-main);
    display: block;
    line-height: 1.45;
}

.service-timeline-list span,
.service-record-grid span,
.editorial-list span,
.service-mini-card span,
.proceedings-list article > span,
.talk-list span {
    color: var(--acc-color);
    display: inline-block;
    font-family: var(--font-head);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    margin-bottom: 0.35rem;
    text-transform: uppercase;
}

.service-card-grid,
.service-record-grid,
.conference-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1rem;
}

.service-mini-card,
.proceedings-list article,
.conference-grid > div {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(56, 189, 248, 0.16);
    border-radius: 12px;
    padding: 1.15rem;
    transition: background 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease, transform 0.28s ease;
}

.service-mini-card h3,
.proceedings-list h3,
.talk-section h3 {
    color: var(--text-main);
    font-size: 1.05rem;
    margin-bottom: 0.55rem;
}

.service-mini-card p,
.service-record-grid p,
.proceedings-list p,
.talk-list p,
.editorial-list p,
.conference-service p,
.conference-grid span {
    color: var(--text-sec);
    font-size: 0.92rem;
    line-height: 1.55;
}

.proceedings-list,
.editorial-list,
.talk-list {
    display: grid;
    gap: 1rem;
}

.society-layout {
    display: grid;
    grid-template-columns: minmax(240px, 0.7fr) 1.3fr;
    gap: 1.3rem;
    align-items: start;
}

.featured-service {
    background: linear-gradient(145deg, rgba(56, 189, 248, 0.14), rgba(15, 23, 42, 0.62));
}

.service-chip-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.55rem;
    list-style: none;
}

.talk-section + .talk-section {
    margin-top: 2rem;
}

.talk-list {
    counter-reset: talks;
    list-style: none;
}

.talk-list li {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(56, 189, 248, 0.14);
    border-radius: 10px;
    padding: 1rem 1.1rem;
    position: relative;
    transition: background 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease, transform 0.28s ease;
}

.service-timeline-list li:hover,
.editorial-list > div:hover,
.service-record-grid > div:hover,
.service-mini-card:hover,
.proceedings-list article:hover,
.conference-grid > div:hover,
.talk-list li:hover {
    background: rgba(15, 23, 42, 0.74);
    border-color: rgba(56, 189, 248, 0.44);
    box-shadow: 0 12px 26px rgba(2, 8, 23, 0.28), inset 0 0 0 1px rgba(56, 189, 248, 0.06);
    transform: translateY(-4px);
}

.talk-list strong {
    color: var(--text-main);
    display: block;
    line-height: 1.45;
}

.compact-talks li {
    padding-top: 0.9rem;
    padding-bottom: 0.9rem;
}

.conference-service {
    display: grid;
    gap: 1.25rem;
}

.conference-role-group {
    display: grid;
    gap: 0.8rem;
    padding-top: 0.55rem;
}

.conference-role-group h3 {
    border-left: 3px solid var(--acc-color);
    color: var(--text-main);
    font-size: 1.12rem;
    padding-left: 0.7rem;
}

.conference-grid strong {
    color: var(--text-main);
    display: block;
    margin-bottom: 0.35rem;
}

.services-join {
    margin-top: 2rem;
    text-align: left;
}

.services-join h2 {
    margin-bottom: 1.2rem;
}

@media (max-width: 992px) {
    .society-layout {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .services-page {
        padding-top: 112px;
    }

    .services-switcher .service-panel {
        padding: 1.2rem;
    }

    .services-stats {
        gap: 0.45rem;
    }

    .services-stats span,
    .service-chip-list li {
        font-size: 0.74rem;
    }

    .service-card-grid,
    .service-record-grid,
    .conference-grid {
        grid-template-columns: 1fr;
    }

    .service-panel h2 {
        font-size: 1.35rem;
    }
}

/* Contact Section */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.contact-info p {
    color: var(--text-sec);
    margin-bottom: 2.5rem;
}

.office-address {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
    margin-bottom: 2rem;
    color: var(--text-sec);
}

.office-address svg {
    color: var(--acc-color);
    flex-shrink: 0;
    margin-top: 5px;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    color: var(--acc-color);
    font-family: var(--font-head);
    font-weight: 700;
}

.social-links a:hover {
    background: var(--acc-color);
    color: #0b1120;
}

.contact-form {
    background: rgba(255, 255, 255, 0.02);
    padding: 2.5rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-main);
    font-weight: 500;
}

.form-group input, .form-group textarea {
    width: 100%;
    padding: 0.8rem 1rem;
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    color: var(--text-main);
    font-family: var(--font-body);
}

.form-group input:focus, .form-group textarea:focus {
    outline: none;
    border-color: var(--acc-color);
}

.submit-btn {
    width: 100%;
}

/* Footer */
.site-footer {
    background:
        linear-gradient(180deg, rgba(6, 10, 19, 0.72), rgba(3, 7, 18, 0.96)),
        radial-gradient(circle at 18% 0%, rgba(56, 189, 248, 0.16), transparent 34%),
        radial-gradient(circle at 82% 20%, rgba(45, 212, 191, 0.1), transparent 30%);
    border-top: 1px solid rgba(56, 189, 248, 0.16);
    padding: 3.5rem 0 1.5rem;
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: '';
    position: absolute;
    inset: 0;
    background-image: linear-gradient(rgba(56, 189, 248, 0.05) 1px, transparent 1px);
    background-size: 100% 32px;
    opacity: 0.35;
    pointer-events: none;
}

.footer-content {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: minmax(280px, 1.25fr) minmax(220px, 0.85fr);
    gap: 2rem 3rem;
    align-items: start;
}

.footer-brand {
    max-width: 620px;
}

.footer-logo {
    display: inline-flex;
    align-items: baseline;
    color: var(--text-main);
    font-family: var(--font-head);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.02em;
    text-decoration: none;
    margin-bottom: 0.8rem;
}

.footer-logo span {
    color: var(--acc-color);
    margin-left: 0.35rem;
}

.footer-brand p {
    color: var(--text-sec);
    font-size: 0.95rem;
    line-height: 1.65;
    margin: 0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem 1rem;
    justify-self: end;
    width: min(100%, 360px);
}

.footer-links a {
    color: var(--text-sec);
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: color 0.25s ease, transform 0.25s ease;
}

.footer-links a:hover {
    color: var(--acc-color);
    transform: translateX(3px);
}

.footer-focus {
    grid-column: 1 / -1;
    display: flex;
    flex-wrap: wrap;
    gap: 0.7rem;
    padding-top: 0.25rem;
}

.footer-focus span {
    color: #bae6fd;
    background: rgba(56, 189, 248, 0.08);
    border: 1px solid rgba(56, 189, 248, 0.18);
    border-radius: 999px;
    padding: 0.4rem 0.8rem;
    font-family: var(--font-head);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.footer-bottom {
    grid-column: 1 / -1;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    align-items: center;
    border-top: 1px solid rgba(148, 163, 184, 0.14);
    padding-top: 1.25rem;
    margin-top: 0.35rem;
}

.footer-bottom p,
.footer-bottom a {
    color: var(--text-sec);
    font-size: 0.84rem;
    margin: 0;
}

.footer-bottom a {
    text-decoration: none;
    font-weight: 600;
}

.footer-bottom a:hover {
    color: var(--acc-color);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-content, .about-grid, .grid-layout, .teaching-grid, .services-wrapper, .opening-items, .contact-grid {
        grid-template-columns: 1fr;
        flex-direction: column;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        justify-self: start;
        width: 100%;
    }

    .hero-content {
        text-align: center;
    }

    .hero {
        padding-top: 96px;
    }

    .hero-image {
        justify-content: center;
        margin-top: 2rem;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .news-box {
        text-align: left;
    }

    .highlights-box {
        text-align: left;
        margin: 0 auto;
    }

    .research-overview-note {
        margin-left: 0;
    }

    .research-overview-note::before {
        width: 128px;
        height: 86px;
        left: 30px;
        top: -70px;
        clip-path: polygon(0 100%, 100% 100%, 0 0);
        border-right: 3px solid #0b3750;
        border-bottom: none;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--bg-color);
        flex-direction: column;
        text-align: center;
        padding: 2rem 0;
        border-bottom: 1px solid var(--border-color);
    }
    
    .nav-links.active {
        display: flex;
    }

    .mobile-menu-btn {
        display: block;
    }

    .glitch {
        font-size: 2.5rem;
    }

    .research-topic-tabs {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        width: 100%;
    }

    .research-tab-btn {
        white-space: nowrap;
        font-size: 0.94rem;
        padding: 0.58rem 0.78rem;
    }

    .research-overview-note {
        margin-top: 1.4rem;
        padding: 1.1rem;
        font-size: 0.98rem;
    }

    .research-overview-note::before {
        display: none;
    }

    .project-mini-grid,
    .student-columns {
        grid-template-columns: 1fr;
    }

    .research-areas-showcase {
        grid-template-columns: 1fr;
        gap: 0.85rem;
    }

    .overview-pillars-grid,
    .overview-impact-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .overview-vision-strip {
        grid-template-columns: 1fr 1fr;
    }

    .vision-main {
        grid-column: span 2;
    }

    .research-areas-text {
        padding: 0.9rem;
    }

    .research-areas-points li {
        font-size: 0.95rem;
        line-height: 1.5;
    }

    .overview-pillars-grid,
    .overview-impact-grid,
    .overview-vision-strip {
        grid-template-columns: 1fr;
    }

    .vision-main {
        grid-column: span 1;
    }

    .impact-items,
    .impact-metrics {
        grid-template-columns: 1fr;
    }

    .publication-impact-panel {
        padding: 1.4rem;
    }

    .publication-impact-grid {
        gap: 2.4rem;
    }

    .impact-card {
        padding: 1.35rem 1rem;
    }

    .publication-impact-footer {
        font-size: 1rem;
        text-align: center;
    }

    .site-footer {
        padding-top: 2.7rem;
    }

    .footer-links {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
    }
}


/* === Light Theme Overrides === */
[data-theme="light"] {
    --bg-color: #f8fafc;
    --bg-alt: #ffffff;
    --acc-color: #0ea5e9;
    --text-main: #0f172a;
    --text-sec: #475569;
    --glass-bg: rgba(255, 255, 255, 0.9);
    --border-color: rgba(14, 165, 233, 0.2);
    --photo-frame: #ffffff;
}

[data-theme="light"] .bg-orb {
    filter: blur(1px);
}

[data-theme="light"] .orb-a {
    background: radial-gradient(circle at 30% 35%, rgba(14, 165, 233, 0.2), rgba(14, 165, 233, 0.02) 65%, transparent 75%);
}

[data-theme="light"] .orb-b {
    background: radial-gradient(circle at 60% 45%, rgba(34, 197, 94, 0.15), rgba(34, 197, 94, 0.02) 65%, transparent 80%);
}

[data-theme="light"] .orb-c {
    background: radial-gradient(circle at 50% 50%, rgba(14, 165, 233, 0.14), rgba(14, 165, 233, 0.01) 62%, transparent 78%);
}

[data-theme="light"] .hero-glass {
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.05), rgba(255, 255, 255, 0.8));
    border-color: rgba(14, 165, 233, 0.2);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .service-timeline-list li,
[data-theme="light"] .editorial-list > div,
[data-theme="light"] .service-record-grid > div,
[data-theme="light"] .service-mini-card,
[data-theme="light"] .proceedings-list article,
[data-theme="light"] .conference-grid > div,
[data-theme="light"] .talk-list li {
    background: rgba(255, 255, 255, 0.82);
    border-color: rgba(14, 165, 233, 0.16);
    box-shadow: 0 4px 16px rgba(15, 23, 42, 0.035);
}

[data-theme="light"] .featured-service {
    background: linear-gradient(145deg, rgba(14, 165, 233, 0.12), rgba(255, 255, 255, 0.92));
}

[data-theme="light"] .services-stats span,
[data-theme="light"] .service-chip-list li {
    background: rgba(14, 165, 233, 0.09);
    color: #0f172a;
}

[data-theme="light"] .service-timeline-list li:hover,
[data-theme="light"] .editorial-list > div:hover,
[data-theme="light"] .service-record-grid > div:hover,
[data-theme="light"] .service-mini-card:hover,
[data-theme="light"] .proceedings-list article:hover,
[data-theme="light"] .conference-grid > div:hover,
[data-theme="light"] .talk-list li:hover {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.42);
    box-shadow: 0 12px 26px rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .card, 
[data-theme="light"] .teaching-item, 
[data-theme="light"] .contact-form,
[data-theme="light"] .pub-item {
    background: #ffffff;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.03);
    border-color: rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .publication-impact-panel {
    background:
        radial-gradient(circle at 10% 10%, rgba(14, 165, 233, 0.13), transparent 30%),
        radial-gradient(circle at 85% 20%, rgba(20, 184, 166, 0.1), transparent 34%),
        linear-gradient(145deg, rgba(255, 255, 255, 0.92), rgba(248, 250, 252, 0.96));
    border-color: rgba(14, 165, 233, 0.2);
    box-shadow: 0 18px 42px rgba(15, 23, 42, 0.07);
}

[data-theme="light"] .impact-card {
    background: rgba(255, 255, 255, 0.82);
    border-color: rgba(14, 165, 233, 0.16);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.05);
}

[data-theme="light"] .impact-card:hover {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.42);
    box-shadow: 0 18px 38px rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .impact-icon {
    background: linear-gradient(145deg, rgba(14, 165, 233, 0.14), #ffffff);
    border-color: #f8fafc;
}

[data-theme="light"] .pub-data-model div {
    background: rgba(14, 165, 233, 0.07);
    border-color: rgba(14, 165, 233, 0.16);
}

[data-theme="light"] .primary-btn {
    color: #ffffff;
}

[data-theme="light"] .news-box {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.08);
    border-left: 4px solid var(--acc-color);
    box-shadow: 0 8px 24px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .quick-pubs-backdrop {
    background: rgba(15, 23, 42, 0.25);
}

[data-theme="light"] .quick-pubs-panel {
    background: linear-gradient(140deg, #ffffff, #f8fafc);
    border: 1px solid rgba(15, 23, 42, 0.12);
    box-shadow: 0 24px 60px rgba(15, 23, 42, 0.18);
}

[data-theme="light"] .highlights-box {
    background: #ffffff;
    border: 1px solid rgba(15, 23, 42, 0.1);
    border-left: 4px solid var(--acc-color);
}

[data-theme="light"] .site-footer {
    background:
        linear-gradient(180deg, rgba(248, 250, 252, 0.82), rgba(255, 255, 255, 0.98)),
        radial-gradient(circle at 18% 0%, rgba(14, 165, 233, 0.12), transparent 34%),
        radial-gradient(circle at 82% 20%, rgba(20, 184, 166, 0.08), transparent 30%);
    border-top-color: rgba(14, 165, 233, 0.18);
}

[data-theme="light"] .footer-logo {
    color: #0f172a;
}

[data-theme="light"] .footer-focus span {
    color: #0369a1;
    background: rgba(14, 165, 233, 0.08);
    border-color: rgba(14, 165, 233, 0.2);
}

[data-theme="light"] .footer-bottom {
    border-top-color: rgba(14, 165, 233, 0.12);
}

[data-theme="light"] .about-text.long-bio-animated {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .about-text.long-bio-animated::after {
    opacity: 0.16;
}

[data-theme="light"] .long-bio-shell {
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.96), rgba(248, 250, 252, 0.96));
    border-color: rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .long-bio-metrics span {
    background: rgba(14, 165, 233, 0.12);
    border-color: rgba(14, 165, 233, 0.25);
}

[data-theme="light"] .bio-node {
    background: rgba(255, 255, 255, 0.82);
    border-color: rgba(15, 23, 42, 0.12);
}

[data-theme="light"] .research-tab-btn {
    border-color: rgba(15, 23, 42, 0.2);
}

[data-theme="light"] .research-tab-btn:hover,
[data-theme="light"] .research-tab-btn.active {
    color: #0c4a6e;
    background: rgba(14, 165, 233, 0.15);
    border-color: rgba(14, 165, 233, 0.4);
}

[data-theme="light"] .research-overview-note {
    color: #f8fafc;
}

[data-theme="light"] .research-filter-item {
    background: linear-gradient(145deg, #ffffff, #f8fbff);
    border-color: rgba(14, 165, 233, 0.25);
}

[data-theme="light"] .chip-list span {
    color: #075985;
    background: rgba(14, 165, 233, 0.12);
}

[data-theme="light"] .project-mini-grid > div {
    background: rgba(14, 165, 233, 0.08);
    border-color: rgba(14, 165, 233, 0.25);
}

[data-theme="light"] .research-areas-points li {
    color: #0f172a;
}

[data-theme="light"] .research-areas-text {
    background: linear-gradient(145deg, rgba(14, 165, 233, 0.1), rgba(255, 255, 255, 0.95));
    border-color: rgba(14, 165, 233, 0.28);
}

[data-theme="light"] .research-areas-intro {
    color: #0f172a;
}

[data-theme="light"] .research-areas-image-box {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.32);
    box-shadow: 0 14px 22px rgba(15, 23, 42, 0.16);
}

[data-theme="light"] .overview-pillars-title {
    color: #0369a1;
}

[data-theme="light"] .overview-pillar-card {
    background: linear-gradient(145deg, rgba(14, 165, 233, 0.12), rgba(255, 255, 255, 0.96));
    border-color: rgba(14, 165, 233, 0.25);
}

[data-theme="light"] .overview-pillar-card p {
    color: #334155;
}

[data-theme="light"] .pillar-cp { background: #dbeafe; color: #1d4ed8; }
[data-theme="light"] .pillar-ai { background: #ede9fe; color: #7c3aed; }
[data-theme="light"] .pillar-ws { background: #ccfbf1; color: #0d9488; }
[data-theme="light"] .pillar-cs { background: #dcfce7; color: #16a34a; }
[data-theme="light"] .pillar-dm { background: #fef3c7; color: #d97706; }

[data-theme="light"] .overview-impact-card {
    background: linear-gradient(155deg, #0f3d73, #0d325f);
    border-color: rgba(125, 211, 252, 0.55);
}

[data-theme="light"] .impact-title-icon {
    background: rgba(186, 230, 253, 0.2);
    border-color: rgba(125, 211, 252, 0.45);
    color: #cffafe;
}

[data-theme="light"] .impact-items div,
[data-theme="light"] .impact-metrics div {
    background: rgba(5, 31, 70, 0.65);
}

[data-theme="light"] .impact-item-icon,
[data-theme="light"] .vision-mini-icon {
    background: rgba(14, 165, 233, 0.16);
    border-color: rgba(14, 165, 233, 0.32);
}

[data-theme="light"] .vision-main,
[data-theme="light"] .vision-mini {
    background: linear-gradient(150deg, rgba(14, 165, 233, 0.14), rgba(255, 255, 255, 0.98));
    border-color: rgba(14, 165, 233, 0.22);
}

[data-theme="light"] .vision-main p,
[data-theme="light"] .vision-mini {
    color: #1e293b;
}

[data-theme="light"] .contact-form #name,
[data-theme="light"] .contact-form #email,
[data-theme="light"] .contact-form #subject,
[data-theme="light"] .contact-form #content {
    background: #ffffff;
    color: #000000;
    border-color: rgba(15, 23, 42, 0.2);
}

[data-theme="light"] .contact-form #name::placeholder,
[data-theme="light"] .contact-form #email::placeholder,
[data-theme="light"] .contact-form #subject::placeholder,
[data-theme="light"] .contact-form #content::placeholder {
    color: #475569;
}

[data-theme="light"] footer {
    background: #f1f5f9;
}

/* === Theme Toggle Button === */
.nav-controls {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.theme-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s;
    outline: none;
}

.theme-toggle:hover {
    background: rgba(14, 165, 233, 0.1);
    color: var(--acc-color);
    transform: rotate(15deg);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
}

.moon-icon { display: block; }
.sun-icon { display: none; }

[data-theme="light"] .moon-icon { display: none; }
[data-theme="light"] .sun-icon { display: block; }

/* === Animations === */
.fade-in {
    opacity: 0;
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.slide-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.slide-left {
    opacity: 0;
    transform: translateX(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}
.slide-right {
    opacity: 0;
    transform: translateX(-40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.fade-in.is-visible,
.slide-up.is-visible,
.slide-left.is-visible,
.slide-right.is-visible {
    opacity: 1;
    transform: translate(0, 0);
}

/* ==========================================
   ZM Bhuiyan - Premium Research Hub Upgrades
   ========================================== */

/* Section Headers */
.section-header-block {
    margin-bottom: 1.8rem;
    border-bottom: 1px solid rgba(56, 189, 248, 0.15);
    padding-bottom: 0.8rem;
}
.section-subtitle {
    color: var(--text-sec);
    font-size: 0.95rem;
    margin-top: 0.3rem;
}

/* Active Research Projects Dashboard */
.project-grid-dashboard {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 1.2rem;
    margin-top: 1rem;
}
.project-card {
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(56, 189, 248, 0.16);
    border-radius: 12px;
    padding: 1.25rem;
    display: flex;
    gap: 1.1rem;
    align-items: flex-start;
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}
.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.05), transparent);
    opacity: 0;
    transition: opacity 0.35s ease;
}
.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--acc-color);
    box-shadow: 0 12px 30px rgba(56, 189, 248, 0.18), inset 0 0 15px rgba(56, 189, 248, 0.05);
}
.project-card:hover::before {
    opacity: 1;
}
.project-icon-badge {
    width: 46px;
    height: 46px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    position: relative;
    z-index: 1;
}
.project-icon-badge i {
    line-height: 1;
}
.color-trust { background: rgba(56, 189, 248, 0.15); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.color-signal { background: rgba(45, 212, 191, 0.15); color: #2dd4bf; border: 1px solid rgba(45, 212, 191, 0.3); }
.color-bias { background: rgba(244, 63, 94, 0.15); color: #f43f5e; border: 1px solid rgba(244, 63, 94, 0.3); }
.color-quantum { background: rgba(168, 85, 247, 0.15); color: #a855f7; border: 1px solid rgba(168, 85, 247, 0.3); }
.color-blockchain { background: rgba(234, 179, 8, 0.15); color: #eab308; border: 1px solid rgba(234, 179, 8, 0.3); }

.project-card-content {
    position: relative;
    z-index: 1;
}
.project-card-content h4 {
    color: var(--text-main);
    font-size: 1.05rem;
    margin-bottom: 0.45rem;
    font-weight: 700;
}
.project-card-content p {
    color: var(--text-sec);
    font-size: 0.88rem;
    line-height: 1.45;
    margin: 0;
}

/* Mentorship, Students & Alumni Sub-tabs */
.student-sub-tabs {
    display: flex;
    gap: 0.65rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid rgba(56, 189, 248, 0.1);
    padding-bottom: 0.75rem;
    flex-wrap: wrap;
}
.sub-tab-btn {
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(56, 189, 248, 0.15);
    color: var(--text-sec);
    padding: 0.45rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.28s ease;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.84rem;
}
.sub-tab-btn:hover {
    color: var(--acc-color);
    border-color: var(--acc-color);
    background: rgba(56, 189, 248, 0.08);
}
.sub-tab-btn.active {
    color: #fff;
    background: linear-gradient(135deg, #0284c7, #0369a1);
    border-color: var(--acc-color);
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.35);
}

.student-sub-panels {
    position: relative;
}
.student-sub-panel {
    display: none;
}
.student-sub-panel.is-visible-subpanel {
    display: block;
    animation: researchPanelIn 0.4s ease forwards;
}

/* Student Cards (Current PhD/MS/UG) */
.student-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1rem;
}
.student-card {
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 12px;
    padding: 1.2rem;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}
.student-card:hover {
    transform: translateY(-4px);
    border-color: var(--acc-color);
    box-shadow: 0 10px 24px rgba(56, 189, 248, 0.15);
}
.student-card h4 {
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 0.25rem;
}
.student-timeline {
    font-size: 0.78rem;
    color: var(--acc-color);
    font-weight: 700;
    margin-bottom: 0.7rem;
    font-family: var(--font-head);
    letter-spacing: 0.03em;
}
.student-thesis {
    color: var(--text-sec);
    font-size: 0.86rem;
    line-height: 1.45;
    margin: 0;
}
.student-role-badge {
    align-self: flex-start;
    font-size: 0.72rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.6rem;
}
.badge-phd { background: rgba(168, 85, 247, 0.18); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.3); }
.badge-ms { background: rgba(56, 189, 248, 0.18); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }
.badge-ug { background: rgba(45, 212, 191, 0.18); color: #2dd4bf; border: 1px solid rgba(45, 212, 191, 0.3); }

.badge-row {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
    margin-bottom: 0.6rem;
}
.badge-row .student-role-badge {
    margin-bottom: 0;
}
.student-collab-badge {
    font-size: 0.72rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    background: rgba(234, 179, 8, 0.15);
    color: #facc15;
    border: 1px solid rgba(234, 179, 8, 0.25);
}
.student-honors-badge {
    font-size: 0.72rem;
    padding: 0.15rem 0.5rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    background: rgba(244, 63, 94, 0.15);
    color: #fb7185;
    border: 1px solid rgba(244, 63, 94, 0.25);
}

/* Alumni Search & List Engine */
.alumni-search-wrapper {
    display: flex;
    align-items: center;
    background: rgba(10, 18, 38, 0.75);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 10px;
    padding: 0.55rem 0.95rem;
    margin-bottom: 1.25rem;
    gap: 0.75rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.alumni-search-wrapper .search-icon {
    color: var(--acc-color);
    font-size: 0.95rem;
}
#alumni-search {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.88rem;
    flex-grow: 1;
}
#alumni-search::placeholder {
    color: rgba(255, 255, 255, 0.35);
}
.alumni-count {
    font-size: 0.78rem;
    color: var(--text-sec);
    font-family: var(--font-head);
    font-weight: 600;
    background: rgba(56, 189, 248, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 12px;
    border: 1px solid rgba(56, 189, 248, 0.2);
    white-space: nowrap;
}
.alumni-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 0.75rem;
    max-height: 520px;
    overflow-y: auto;
    padding-right: 0.35rem;
}
.alumni-grid::-webkit-scrollbar {
    width: 6px;
}
.alumni-grid::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.3);
    border-radius: 99px;
}
.alumni-grid::-webkit-scrollbar-thumb {
    background: rgba(56, 189, 248, 0.3);
    border-radius: 99px;
}
.alumni-grid::-webkit-scrollbar-thumb:hover {
    background: rgba(56, 189, 248, 0.5);
}
.alumni-card {
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(56, 189, 248, 0.12);
    border-radius: 10px;
    padding: 0.9rem;
    transition: all 0.25s ease;
}
.alumni-card:hover {
    border-color: rgba(56, 189, 248, 0.45);
    background: rgba(15, 23, 42, 0.65);
    transform: translateX(3px);
}
.alumni-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.35rem;
    gap: 0.5rem;
}
.alumni-header h5 {
    font-size: 0.95rem;
    color: var(--text-main);
    font-weight: 600;
}
.alumni-header h5 .degree {
    color: var(--acc-color);
}
.alumni-years {
    font-size: 0.74rem;
    color: var(--acc-color);
    font-weight: 700;
    font-family: var(--font-head);
    flex-shrink: 0;
}
.alumni-thesis {
    color: var(--text-sec);
    font-size: 0.82rem;
    line-height: 1.4;
    margin: 0;
}

/* Honors & Awards Page Styles */
.featured-awards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}
.award-badge-card {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(56, 189, 248, 0.18);
    border-radius: 14px;
    padding: 1.25rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(8px);
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}
.award-badge-card h4 {
    font-size: 1.05rem;
    color: var(--text-main);
    margin-bottom: 0.45rem;
    font-weight: 700;
}
.award-badge-card p {
    color: var(--text-sec);
    font-size: 0.84rem;
    line-height: 1.45;
    margin: 0;
}
.award-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.8rem;
}
.award-badge-year {
    font-size: 0.72rem;
    font-weight: 800;
    padding: 0.2rem 0.5rem;
    border-radius: 20px;
    font-family: var(--font-head);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}
.award-icon-box {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}
.award-icon-box.gold { background: rgba(234, 179, 8, 0.15); color: #facc15; border: 1px solid rgba(234, 179, 8, 0.25); }
.award-icon-box.blue { background: rgba(56, 189, 248, 0.15); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.25); }
.award-icon-box.red { background: rgba(244, 63, 94, 0.15); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.25); }
.award-icon-box.green { background: rgba(45, 212, 191, 0.15); color: #2dd4bf; border: 1px solid rgba(45, 212, 191, 0.25); }

/* Glow Animations on Hover */
.highlight-glow-gold:hover {
    transform: translateY(-5px);
    border-color: #facc15;
    box-shadow: 0 12px 30px rgba(234, 179, 8, 0.2), inset 0 0 15px rgba(234, 179, 8, 0.05);
}
.highlight-glow-gold .award-badge-year { background: rgba(234, 179, 8, 0.18); color: #facc15; border: 1px solid rgba(234, 179, 8, 0.3); }

.highlight-glow-blue:hover {
    transform: translateY(-5px);
    border-color: #38bdf8;
    box-shadow: 0 12px 30px rgba(56, 189, 248, 0.2), inset 0 0 15px rgba(56, 189, 248, 0.05);
}
.highlight-glow-blue .award-badge-year { background: rgba(56, 189, 248, 0.18); color: #38bdf8; border: 1px solid rgba(56, 189, 248, 0.3); }

.highlight-glow-red:hover {
    transform: translateY(-5px);
    border-color: #fb7185;
    box-shadow: 0 12px 30px rgba(244, 63, 94, 0.2), inset 0 0 15px rgba(244, 63, 94, 0.05);
}
.highlight-glow-red .award-badge-year { background: rgba(244, 63, 94, 0.18); color: #fb7185; border: 1px solid rgba(244, 63, 94, 0.3); }

.highlight-glow-green:hover {
    transform: translateY(-5px);
    border-color: #2dd4bf;
    box-shadow: 0 12px 30px rgba(45, 212, 191, 0.2), inset 0 0 15px rgba(45, 212, 191, 0.05);
}
.highlight-glow-green .award-badge-year { background: rgba(45, 212, 191, 0.18); color: #2dd4bf; border: 1px solid rgba(45, 212, 191, 0.3); }

/* Professional Recognitions Chips */
.prof-recognitions-section {
    margin-bottom: 2rem;
}
.sub-section-title {
    font-size: 1.15rem;
    color: var(--text-main);
    margin-bottom: 0.95rem;
    font-family: var(--font-head);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-left: 3px solid var(--acc-color);
    padding-left: 0.6rem;
    margin-top: 1rem;
}
.prof-chips-container {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}
.prof-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(56, 189, 248, 0.15);
    color: #e2e8f0;
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 550;
    transition: all 0.25s ease;
}
.prof-chip:hover {
    border-color: var(--acc-color);
    background: rgba(56, 189, 248, 0.1);
    transform: scale(1.03);
}
.prof-chip i {
    color: var(--acc-color);
    font-size: 0.78rem;
}

/* Timeline Styles */
.awards-timeline-section {
    margin-bottom: 1rem;
}
.awards-timeline {
    position: relative;
    padding-left: 1.3rem;
    border-left: 2px solid rgba(56, 189, 248, 0.16);
    display: flex;
    flex-direction: column;
    gap: 1.1rem;
    max-height: 480px;
    overflow-y: auto;
    padding-right: 0.35rem;
}
.awards-timeline::-webkit-scrollbar {
    width: 6px;
}
.awards-timeline::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.3);
    border-radius: 99px;
}
.awards-timeline::-webkit-scrollbar-thumb {
    background: rgba(56, 189, 248, 0.3);
    border-radius: 99px;
}
.awards-timeline::-webkit-scrollbar-thumb:hover {
    background: rgba(56, 189, 248, 0.5);
}
.timeline-node {
    position: relative;
}
.timeline-node::before {
    content: '';
    position: absolute;
    left: calc(-1.3rem - 6px);
    top: 5px;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--bg-color);
    border: 2.5px solid var(--acc-color);
    transition: transform 0.28s ease, background-color 0.28s ease;
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}
.timeline-node:hover::before {
    transform: scale(1.35);
    background-color: var(--acc-color);
}
.node-year {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 0.8rem;
    color: var(--acc-color);
    display: block;
    margin-bottom: 0.15rem;
}
.node-content {
    background: rgba(15, 23, 42, 0.3);
    border: 1px solid rgba(56, 189, 248, 0.08);
    border-radius: 8px;
    padding: 0.7rem 0.85rem;
    transition: all 0.25s ease;
}
.timeline-node:hover .node-content {
    border-color: rgba(56, 189, 248, 0.25);
    background: rgba(15, 23, 42, 0.5);
    transform: translateX(3px);
}
.node-content h5 {
    font-size: 0.95rem;
    color: var(--text-main);
    margin-bottom: 0.2rem;
}
.node-content p {
    color: var(--text-sec);
    font-size: 0.84rem;
    line-height: 1.4;
    margin: 0;
}

/* === Light Theme Overrides === */
[data-theme="light"] .project-card,
[data-theme="light"] .student-card,
[data-theme="light"] .award-badge-card {
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(14, 165, 233, 0.18);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .project-card:hover,
[data-theme="light"] .student-card:hover {
    border-color: #0ea5e9;
    box-shadow: 0 10px 24px rgba(14, 165, 233, 0.14);
}
[data-theme="light"] .project-card-content h4,
[data-theme="light"] .student-card h4,
[data-theme="light"] .award-badge-card h4,
[data-theme="light"] .node-content h5,
[data-theme="light"] .alumni-header h5,
[data-theme="light"] .sub-section-title {
    color: #0f172a;
}
[data-theme="light"] .sub-tab-btn {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(14, 165, 233, 0.2);
    color: #475569;
}
[data-theme="light"] .sub-tab-btn:hover {
    color: #0284c7;
    border-color: #0284c7;
    background: rgba(14, 165, 233, 0.06);
}
[data-theme="light"] .sub-tab-btn.active {
    color: #fff;
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    border-color: #0284c7;
    box-shadow: 0 4px 15px rgba(14, 165, 233, 0.25);
}
[data-theme="light"] .student-timeline,
[data-theme="light"] .alumni-years,
[data-theme="light"] .node-year {
    color: #0284c7;
}
[data-theme="light"] .student-thesis,
[data-theme="light"] .alumni-thesis,
[data-theme="light"] .node-content p,
[data-theme="light"] .award-badge-card p,
[data-theme="light"] .project-card-content p {
    color: #475569;
}
[data-theme="light"] .alumni-card {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(14, 165, 233, 0.15);
}
[data-theme="light"] .alumni-card:hover {
    border-color: #0ea5e9;
    background: rgba(255, 255, 255, 0.95);
}
[data-theme="light"] .alumni-search-wrapper {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(14, 165, 233, 0.25);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] #alumni-search {
    color: #0f172a;
}
[data-theme="light"] #alumni-search::placeholder {
    color: #94a3b8;
}
[data-theme="light"] .alumni-count {
    background: rgba(14, 165, 233, 0.08);
    color: #0284c7;
    border-color: rgba(14, 165, 233, 0.18);
}
[data-theme="light"] .prof-chip {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(14, 165, 233, 0.18);
    color: #334155;
}
[data-theme="light"] .prof-chip:hover {
    border-color: #0ea5e9;
    background: rgba(14, 165, 233, 0.06);
}
[data-theme="light"] .node-content {
    background: rgba(255, 255, 255, 0.6);
    border-color: rgba(14, 165, 233, 0.1);
}
[data-theme="light"] .timeline-node:hover .node-content {
    border-color: rgba(14, 165, 233, 0.28);
    background: rgba(255, 255, 255, 0.9);
}
[data-theme="light"] .timeline-node::before {
    background: #f8fafc;
    border-color: #0ea5e9;
}
[data-theme="light"] .awards-timeline {
    border-left-color: rgba(14, 165, 233, 0.15);
}

/* ==========================================================================
   RESEARCH OPPORTUNITIES SECTION - TRUST MATRIX & VSERIES STYLES
   ========================================================================== */

.opportunities-header-container {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 3rem auto;
    padding: 0 1rem;
}

.opportunities-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.75rem;
    font-weight: 700;
    color: #f43f5e;
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.2);
    padding: 0.3rem 0.8rem;
    border-radius: 20px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
}

.opportunities-subtitle {
    font-size: 1.25rem;
    line-height: 1.5;
    color: #e2e8f0;
    margin-bottom: 0.8rem;
    font-family: var(--font-head);
    font-weight: 600;
}

.opportunities-lead {
    font-size: 0.95rem;
    line-height: 1.6;
    color: #94a3b8;
}

/* --- The Trust Diagram Showcase Container --- */
.trusts-diagram-outer {
    background: rgba(11, 17, 32, 0.6);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    margin-bottom: 4rem;
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(12px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.trusts-diagram-title {
    font-size: 1.6rem;
    font-weight: 800;
    text-align: center;
    color: #fff;
    font-family: var(--font-head);
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 15px rgba(56, 189, 248, 0.3);
}

.trusts-diagram-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.72rem;
    font-weight: 700;
    color: #64748b;
    border-bottom: 1px solid rgba(56, 189, 248, 0.1);
    padding-bottom: 0.8rem;
    margin-bottom: 2.5rem;
    letter-spacing: 0.05em;
}

.trust-diagram-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    height: 520px;
    margin: 0 auto;
}

/* SVG Wires and Light Pulse Flow */
.trust-diagram-wires {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.orbit-path {
    fill: none;
    stroke: rgba(56, 189, 248, 0.12);
    stroke-width: 2.5px;
}

.orbit-flow-glow {
    fill: none;
    stroke-linecap: round;
    stroke-width: 3px;
    filter: url(#glow);
}

.wire-top-flow {
    stroke: url(#cyber-ai-grad);
    stroke-dasharray: 20 180;
    animation: flow-run-clockwise 6s linear infinite;
}

.wire-left-flow {
    stroke: url(#wireless-cyber-grad);
    stroke-dasharray: 20 160;
    animation: flow-run-counter 5s linear infinite;
}

.wire-right-flow {
    stroke: url(#ai-wireless-grad);
    stroke-dasharray: 20 160;
    animation: flow-run-clockwise 5s linear infinite;
}

@keyframes flow-run-clockwise {
    to {
        stroke-dashoffset: -200;
    }
}

@keyframes flow-run-counter {
    to {
        stroke-dashoffset: 200;
    }
}

/* Hexagonal CSS Nodes */
.hex-element {
    position: absolute;
    width: 190px;
    height: 165px;
    z-index: 4;
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.hex-bg-shape {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    clip-path: polygon(25% 0%, 75% 0%, 100% 50%, 75% 100%, 25% 100%, 0% 50%);
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid transparent;
    transition: all 0.4s ease;
}

.hex-inner-content {
    position: relative;
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 1.2rem;
    text-align: center;
}

.hex-inner-icon {
    font-size: 2.2rem;
    margin-bottom: 0.6rem;
    transition: transform 0.3s ease;
}

.hex-inner-content h4 {
    font-family: var(--font-head);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: #fff;
    margin: 0;
    line-height: 1.3;
}

/* Hex placement coordinate mappings */
.hex-cybersecurity {
    left: 17%;
    top: 25%;
    transform: translate(-50%, -50%);
}
.hex-cybersecurity .hex-bg-shape {
    border-left: 2px solid #0ea5e9;
    border-right: 2px solid #0ea5e9;
    box-shadow: inset 0 0 20px rgba(14, 165, 233, 0.25);
    background: linear-gradient(135deg, rgba(14, 165, 233, 0.15) 0%, rgba(15, 23, 42, 0.95) 100%);
}
.hex-cybersecurity .hex-inner-icon {
    color: #38bdf8;
    text-shadow: 0 0 10px rgba(14, 165, 233, 0.5);
}

.hex-ai {
    left: 83%;
    top: 25%;
    transform: translate(-50%, -50%);
}
.hex-ai .hex-bg-shape {
    border-left: 2px solid #a855f7;
    border-right: 2px solid #a855f7;
    box-shadow: inset 0 0 20px rgba(168, 85, 247, 0.25);
    background: linear-gradient(135deg, rgba(168, 85, 247, 0.15) 0%, rgba(15, 23, 42, 0.95) 100%);
}
.hex-ai .hex-inner-icon {
    color: #c084fc;
    text-shadow: 0 0 10px rgba(168, 85, 247, 0.5);
}

.hex-wireless {
    left: 50%;
    top: 70%;
    transform: translate(-50%, -50%);
}
.hex-wireless .hex-bg-shape {
    border-left: 2px solid #10b981;
    border-right: 2px solid #10b981;
    box-shadow: inset 0 0 20px rgba(16, 185, 129, 0.25);
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(15, 23, 42, 0.95) 100%);
}
.hex-wireless .hex-inner-icon {
    color: #34d399;
    text-shadow: 0 0 10px rgba(16, 185, 129, 0.5);
}

/* Hover scales hexagons */
.hex-element:hover {
    z-index: 10;
}
.hex-element:hover .hex-bg-shape {
    transform: scale(1.05);
    background: rgba(15, 23, 42, 0.98);
}
.hex-cybersecurity:hover .hex-bg-shape { border-color: #38bdf8; box-shadow: 0 0 30px rgba(14, 165, 233, 0.45), inset 0 0 25px rgba(14, 165, 233, 0.35); }
.hex-ai:hover .hex-bg-shape { border-color: #c084fc; box-shadow: 0 0 30px rgba(168, 85, 247, 0.45), inset 0 0 25px rgba(168, 85, 247, 0.35); }
.hex-wireless:hover .hex-bg-shape { border-color: #34d399; box-shadow: 0 0 30px rgba(16, 185, 129, 0.45), inset 0 0 25px rgba(16, 185, 129, 0.35); }
.hex-element:hover .hex-inner-icon {
    transform: scale(1.15) translateY(-2px);
}

/* Central Overlaps */
.intersect-node {
    position: absolute;
    z-index: 5;
    background: rgba(15, 23, 42, 0.85);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 8px;
    padding: 0.5rem 0.8rem;
    text-align: center;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(8px);
}

.intersect-inner span {
    font-family: var(--font-head);
    font-size: 0.68rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: #fff;
    display: block;
}

.intersect-inner small {
    font-size: 0.52rem;
    color: #94a3b8;
    display: block;
    line-height: 1.2;
    margin-top: 0.15rem;
}

.node-networking {
    left: 50%;
    top: 18%;
    transform: translate(-50%, -50%);
}

.node-iot-cps {
    left: 50%;
    top: 40%;
    transform: translate(-50%, -50%);
    border-color: rgba(168, 85, 247, 0.3);
    padding: 0.6rem 1rem;
}
.node-iot-cps .intersect-inner span {
    color: #e9d5ff;
}

/* Dynamic Curved Overlapping Ribbons */
.diagram-ribbon {
    position: absolute;
    z-index: 3;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.08);
    font-family: var(--font-head);
    font-size: 0.54rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    color: #cbd5e1;
    padding: 0.3rem 0.7rem;
    border-radius: 4px;
    pointer-events: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.ribbon-glow {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 4px;
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.05);
}

.ribbon-top {
    left: 50%;
    top: 4%;
    transform: translateX(-50%);
    border-color: rgba(56, 189, 248, 0.25);
    background: rgba(14, 165, 233, 0.08);
    color: #38bdf8;
}

.ribbon-left {
    left: 1%;
    top: 45%;
    transform: rotate(-12deg);
}

.ribbon-right {
    right: 1%;
    top: 45%;
    transform: rotate(12deg);
}

.ribbon-bottom-left {
    left: 20%;
    top: 92%;
    transform: rotate(4deg);
    border-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.ribbon-bottom-right {
    right: 20%;
    top: 92%;
    transform: rotate(-4deg);
    border-color: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

/* --- vSeries Framework Panel --- */
.vseries-framework-wrapper {
    background: rgba(11, 17, 32, 0.45);
    border: 1px solid rgba(168, 85, 247, 0.12);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    margin-bottom: 4rem;
    position: relative;
    backdrop-filter: blur(8px);
}

.vseries-title-area {
    text-align: center;
    margin-bottom: 2.5rem;
}

.vseries-label {
    font-size: 1.4rem;
    font-weight: 900;
    font-family: var(--font-head);
    color: #fff;
    letter-spacing: 0.05em;
    display: inline-block;
    padding: 0.2rem 1rem;
    background: linear-gradient(135deg, #a855f7, #ec4899);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 0 20px rgba(168, 85, 247, 0.2);
}

.vseries-subtitle {
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: #64748b;
    margin-top: 0.35rem;
    text-transform: uppercase;
}

.vseries-flow-outer {
    position: relative;
    margin-bottom: 3.5rem;
}

/* Horizontal Flow SVG */
.vseries-flow-arrows {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

.arrow-bg {
    fill: none;
    stroke: rgba(255, 255, 255, 0.05);
    stroke-width: 3px;
    stroke-linecap: round;
}

.arrow-pulse {
    fill: none;
    stroke-linecap: round;
    stroke-width: 3.5px;
    filter: url(#glow-arrow);
}

.arrow-pulse-1 { stroke: #f97316; stroke-dasharray: 10 30; animation: arrow-run 1.5s linear infinite; }
.arrow-pulse-2 { stroke: #14b8a6; stroke-dasharray: 10 30; animation: arrow-run 1.5s linear infinite; animation-delay: 0.5s; }
.arrow-pulse-3 { stroke: #0ea5e9; stroke-dasharray: 10 30; animation: arrow-run 1.5s linear infinite; animation-delay: 1s; }

@keyframes arrow-run {
    to {
        stroke-dashoffset: -40;
    }
}

.vseries-cards-row {
    position: relative;
    z-index: 2;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.vseries-card {
    background: rgba(15, 23, 42, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: 12px;
    padding: 1.5rem 1.2rem;
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.vseries-card:hover {
    transform: translateY(-6px);
    background: rgba(15, 23, 42, 0.9);
}

.vseries-header-bar {
    margin-bottom: 1.2rem;
}

.vseries-badge {
    font-size: 0.68rem;
    font-weight: 800;
    padding: 0.2rem 0.6rem;
    border-radius: 4px;
    font-family: var(--font-head);
    letter-spacing: 0.02em;
}

.badge-vdata { background: rgba(249, 115, 22, 0.15); color: #fb923c; border: 1px solid rgba(249, 115, 22, 0.3); }
.badge-vprivacy { background: rgba(20, 184, 166, 0.15); color: #2dd4bf; border: 1px solid rgba(20, 184, 166, 0.3); }
.badge-vwimonitor { background: rgba(14, 165, 233, 0.15); color: #38bdf8; border: 1px solid rgba(14, 165, 233, 0.3); }
.badge-aidata { background: rgba(217, 70, 239, 0.15); color: #f472b6; border: 1px solid rgba(217, 70, 239, 0.3); }

.vseries-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1.2rem;
}

.bg-orange-dim { background: rgba(249, 115, 22, 0.1); border: 1px solid rgba(249, 115, 22, 0.18); }
.text-orange { color: #f97316; }

.bg-teal-dim { background: rgba(20, 184, 166, 0.1); border: 1px solid rgba(20, 184, 166, 0.18); }
.text-teal { color: #14b8a6; }

.bg-blue-dim { background: rgba(14, 165, 233, 0.1); border: 1px solid rgba(14, 165, 233, 0.18); }
.text-blue { color: #0ea5e9; }

.bg-magenta-dim { background: rgba(217, 70, 239, 0.1); border: 1px solid rgba(217, 70, 239, 0.18); }
.text-magenta { color: #d946ef; }

.vseries-card h5 {
    font-size: 0.95rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 0.5rem;
}

.vseries-card p {
    font-size: 0.8rem;
    color: #94a3b8;
    line-height: 1.45;
    margin: 0;
}

.vseries-card:hover.card-vdata { border-color: #f97316; box-shadow: 0 8px 24px rgba(249, 115, 22, 0.15); }
.vseries-card:hover.card-vprivacy { border-color: #14b8a6; box-shadow: 0 8px 24px rgba(20, 184, 166, 0.15); }
.vseries-card:hover.card-vwimonitor { border-color: #0ea5e9; box-shadow: 0 8px 24px rgba(14, 165, 233, 0.15); }
.vseries-card:hover.card-aidata { border-color: #d946ef; box-shadow: 0 8px 24px rgba(217, 70, 239, 0.15); }

/* Lifecycle Timeline Below Cards */
.vseries-lifecycle-timeline-container {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
    padding-top: 1.2rem;
}

.timeline-connector-line {
    position: absolute;
    top: calc(1.2rem + 15px);
    left: 10%;
    right: 10%;
    height: 2px;
    background: rgba(255, 255, 255, 0.08);
    z-index: 1;
}

.vseries-lifecycle-timeline {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: space-between;
}

.lifecycle-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
}

.step-icon {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #0f172a;
    border: 2px solid rgba(255, 255, 255, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    color: #64748b;
    transition: all 0.3s ease;
}

.step-label {
    font-size: 0.72rem;
    font-weight: 700;
    color: #64748b;
    font-family: var(--font-head);
    transition: all 0.3s ease;
}

.lifecycle-step.active .step-icon {
    border-color: #f97316;
    color: #f97316;
    box-shadow: 0 0 10px rgba(249, 115, 22, 0.25);
}

.lifecycle-step.active .step-label {
    color: #e2e8f0;
}

.lifecycle-step:hover .step-icon {
    border-color: #a855f7;
    color: #a855f7;
    transform: scale(1.1);
}

.lifecycle-step:hover .step-label {
    color: #fff;
}

/* --- Open Positions & CTA applying area --- */
.opportunities-positions-container {
    margin-top: 5rem;
}

.opportunities-positions-container h4 {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    text-align: center;
    margin-bottom: 0.3rem;
}

.positions-sub {
    font-size: 0.9rem;
    color: #64748b;
    text-align: center;
    margin-bottom: 3rem;
}

.positions-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-bottom: 4rem;
}

.position-card {
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(56, 189, 248, 0.08);
    border-radius: 12px;
    padding: 2rem 1.5rem;
    position: relative;
    overflow: hidden;
    transition: all 0.35s cubic-bezier(0.25, 0.8, 0.25, 1);
}

.position-card-glow {
    position: absolute;
    top: -50px;
    left: -50px;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    filter: blur(40px);
    opacity: 0.15;
    pointer-events: none;
}

.position-card-glow.blue { background: #0ea5e9; }
.position-card-glow.purple { background: #a855f7; }
.position-card-glow.green { background: #10b981; }

.position-icon {
    font-size: 2rem;
    color: var(--acc-color);
    margin-bottom: 1.2rem;
}

.position-card h5 {
    font-size: 1.05rem;
    color: #fff;
    font-weight: 700;
    margin-bottom: 0.8rem;
}

.position-card p {
    font-size: 0.84rem;
    color: #94a3b8;
    line-height: 1.5;
    margin-bottom: 1.5rem;
}

.position-tag {
    font-size: 0.65rem;
    font-weight: 800;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-family: var(--font-head);
    text-transform: uppercase;
}

.tag-funded { background: rgba(14, 165, 233, 0.12); color: #38bdf8; border: 1px solid rgba(14, 165, 233, 0.2); }
.tag-thesis { background: rgba(168, 85, 247, 0.12); color: #c084fc; border: 1px solid rgba(168, 85, 247, 0.2); }
.tag-ug { background: rgba(16, 185, 129, 0.12); color: #34d399; border: 1px solid rgba(16, 185, 129, 0.2); }

.position-card:hover {
    transform: translateY(-6px);
    border-color: rgba(56, 189, 248, 0.25);
    background: rgba(15, 23, 42, 0.7);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.25);
}

.position-card:hover .position-card-glow {
    opacity: 0.35;
}

/* Call to Action applying Box */
.opportunities-cta-box {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.9) 0%, rgba(11, 17, 32, 0.95) 100%);
    border: 1px solid rgba(56, 189, 248, 0.2);
    border-radius: 16px;
    padding: 3rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.3);
}

.cta-mesh {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: radial-gradient(rgba(56, 189, 248, 0.1) 1.5px, transparent 1.5px);
    background-size: 24px 24px;
    opacity: 0.4;
    pointer-events: none;
}

.cta-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 700px;
    margin: 0 auto;
}

.cta-icon-box {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(56, 189, 248, 0.12);
    border: 1px solid rgba(56, 189, 248, 0.25);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #38bdf8;
    margin: 0 auto 1.5rem auto;
    text-shadow: 0 0 10px rgba(56, 189, 248, 0.3);
}

.cta-content h5 {
    font-size: 1.4rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 0.8rem;
}

.cta-content p {
    font-size: 0.9rem;
    color: #cbd5e1;
    line-height: 1.6;
    margin-bottom: 2rem;
}

.opportunities-apply-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    border: none;
    color: #fff;
    padding: 0.85rem 1.8rem;
    border-radius: 30px;
    font-size: 0.9rem;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 6px 20px rgba(14, 165, 233, 0.25);
}

.opportunities-apply-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(14, 165, 233, 0.45);
    background: linear-gradient(135deg, #38bdf8, #0ea5e9);
}

.opportunities-apply-btn i {
    transition: transform 0.3s ease;
}

.opportunities-apply-btn:hover i {
    transform: translateX(4px);
}

.preview-trust-showcase {
    background: radial-gradient(ellipse at 50% 0%, rgba(14, 165, 233, 0.14) 0%, rgba(11, 17, 32, 0.78) 58%, rgba(2, 6, 23, 0.92) 100%);
    border: 1px solid rgba(56, 189, 248, 0.16);
    border-radius: 16px;
    padding: 1.3rem 1.5rem 2.2rem;
    margin-bottom: 4rem;
    overflow: hidden;
    position: relative;
    box-shadow: 0 20px 45px rgba(0, 0, 0, 0.3);
}

.preview-top-row {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    color: rgba(226, 232, 240, 0.78);
    font-family: var(--font-head);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.preview-trust-title {
    color: #ffffff;
    font-family: var(--font-head);
    font-size: clamp(1.9rem, 4vw, 3.25rem);
    font-weight: 900;
    letter-spacing: 0.05em;
    text-align: center;
    text-transform: uppercase;
    margin: 1.1rem 0 1.25rem;
    text-shadow: 0 0 32px rgba(56, 189, 248, 0.28);
}

.preview-diagram-section {
    position: relative;
    width: min(100%, 960px);
    height: 560px;
    margin: 0 auto;
}

.preview-diagram-svg {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.preview-hex {
    position: absolute;
    width: 220px;
    height: 248px;
    clip-path: polygon(25% 6.7%, 75% 6.7%, 100% 50%, 75% 93.3%, 25% 93.3%, 0% 50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.7rem;
    color: #ffffff;
    font-family: var(--font-head);
    font-size: 1.35rem;
    font-weight: 900;
    letter-spacing: 0.04em;
    line-height: 1.12;
    text-align: center;
    text-transform: uppercase;
    transition: transform 0.3s ease, filter 0.3s ease;
}

.preview-hex i {
    font-size: 2rem;
}

.preview-hex:hover {
    filter: brightness(1.08);
}

.preview-hex-blue {
    left: 16.7%;
    top: 14.3%;
    background: linear-gradient(145deg, #6ed4ff 0%, #2a7ecf 42%, #1558a8 100%);
    box-shadow: 0 0 50px rgba(70, 180, 255, 0.28), inset 0 0 30px rgba(255, 255, 255, 0.1);
}

.preview-hex-blue:hover {
    transform: translateY(-5px);
}

.preview-hex-purple {
    right: 16.7%;
    top: 14.3%;
    background: linear-gradient(145deg, #d96fff 0%, #9040d8 42%, #6022aa 100%);
    box-shadow: 0 0 50px rgba(180, 80, 255, 0.28), inset 0 0 30px rgba(255, 255, 255, 0.1);
}

.preview-hex-purple:hover {
    transform: translateY(-5px);
}

.preview-hex-green {
    left: 50%;
    top: 46.4%;
    transform: translateX(-50%);
    background: linear-gradient(145deg, #8fffab 0%, #3fc46a 42%, #1e8047 100%);
    box-shadow: 0 0 50px rgba(80, 220, 120, 0.28), inset 0 0 30px rgba(255, 255, 255, 0.1);
}

.preview-hex-green:hover {
    transform: translateX(-50%) translateY(-5px);
}

.preview-center-box,
.preview-pill {
    position: absolute;
    text-align: center;
    text-transform: uppercase;
    font-family: var(--font-head);
    font-weight: 800;
    line-height: 1.25;
    backdrop-filter: blur(8px);
}

.preview-center-box {
    background: rgba(71, 85, 105, 0.76);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 9px;
    color: #ffffff;
    padding: 0.55rem 0.8rem;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.35);
}

.preview-center-box small {
    display: block;
    color: rgba(226, 232, 240, 0.82);
    font-size: 0.62rem;
    line-height: 1.2;
    margin-top: 0.18rem;
}

.preview-cbox-top {
    top: 9.8%;
    left: 50%;
    width: 215px;
    transform: translateX(-50%);
    font-size: 0.76rem;
}

.preview-cbox-net {
    top: 36.6%;
    left: 50%;
    width: 140px;
    transform: translateX(-50%);
    font-size: 0.82rem;
}

.preview-cbox-iot {
    top: 50.9%;
    left: 50%;
    width: 225px;
    transform: translateX(-50%);
    font-size: 0.78rem;
}

.preview-pill {
    border-radius: 999px;
    font-size: 0.74rem;
    letter-spacing: 0.04em;
    padding: 0.7rem 1.25rem;
}

.preview-pill-gold {
    background: linear-gradient(90deg, rgba(14, 165, 233, 0.18), rgba(56, 189, 248, 0.34), rgba(20, 184, 166, 0.2));
    border: 1px solid rgba(56, 189, 248, 0.28);
    color: #bae6fd;
    box-shadow: 0 0 18px rgba(56, 189, 248, 0.15);
}

.preview-pill-silver {
    background: linear-gradient(90deg, rgba(148, 163, 184, 0.2), rgba(226, 232, 240, 0.28), rgba(148, 163, 184, 0.18));
    border: 1px solid rgba(226, 232, 240, 0.2);
    color: #e2e8f0;
}

.preview-pill-left {
    left: 0;
    top: 41%;
    width: 200px;
}

.preview-pill-right {
    right: 0;
    top: 41%;
    width: 200px;
}

.preview-pill-bl {
    left: 15.6%;
    bottom: 1.8%;
    width: 215px;
}

.preview-pill-br {
    right: 15.6%;
    bottom: 1.8%;
    width: 215px;
}

.preview-framework-section {
    margin-top: 1.2rem;
    text-align: center;
}

.preview-framework-title {
    color: #ffffff;
    font-family: var(--font-head);
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 900;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.preview-framework-title span {
    font-style: italic;
    color: #38bdf8;
}

.preview-framework-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.55rem;
    margin-top: 1.6rem;
    position: relative;
    flex-wrap: wrap;
}

.preview-fbox {
    width: 130px;
    height: 92px;
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.35rem;
    color: #ffffff;
    font-family: var(--font-head);
    font-size: 1.25rem;
    font-weight: 900;
    letter-spacing: 0.03em;
    text-transform: none;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
}

.preview-fbox i {
    font-size: 1.45rem;
}

.preview-arrow {
    color: rgba(226, 232, 240, 0.78);
    font-size: 1.1rem;
}

.preview-fbox-orange { background: linear-gradient(145deg, #f59e0b, #ea580c); }
.preview-fbox-teal { background: linear-gradient(145deg, #2dd4bf, #0f766e); }
.preview-fbox-blue { background: linear-gradient(145deg, #38bdf8, #1d4ed8); }
.preview-fbox-pink { background: linear-gradient(145deg, #f472b6, #9333ea); }

.preview-lifecycle-text {
    color: rgba(226, 232, 240, 0.78);
    font-family: var(--font-head);
    font-size: 0.86rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin-top: 1.2rem;
    text-transform: uppercase;
}

.preview-footer-icons {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
    color: rgba(226, 232, 240, 0.76);
    flex-wrap: wrap;
}

.preview-footer-icons div {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    font-family: var(--font-head);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.04em;
}

.preview-footer-icons i {
    color: #38bdf8;
}

/* --- LIGHT THEME OVERRIDES --- */
[data-theme="light"] .preview-trust-showcase {
    background: radial-gradient(ellipse at 50% 0%, rgba(14, 165, 233, 0.12) 0%, rgba(255, 255, 255, 0.9) 58%, rgba(248, 250, 252, 0.98) 100%);
    border-color: rgba(14, 165, 233, 0.18);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.06);
}

[data-theme="light"] .preview-top-row,
[data-theme="light"] .preview-lifecycle-text,
[data-theme="light"] .preview-footer-icons {
    color: #475569;
}

[data-theme="light"] .preview-trust-title,
[data-theme="light"] .preview-framework-title {
    color: #0f172a;
    text-shadow: none;
}

[data-theme="light"] .preview-center-box {
    background: rgba(255, 255, 255, 0.86);
    border-color: rgba(14, 165, 233, 0.22);
    color: #0f172a;
    box-shadow: 0 10px 24px rgba(15, 23, 42, 0.08);
}

[data-theme="light"] .preview-center-box small {
    color: #475569;
}

[data-theme="light"] .preview-pill-gold {
    background: linear-gradient(90deg, rgba(14, 165, 233, 0.08), rgba(56, 189, 248, 0.18), rgba(20, 184, 166, 0.12));
    color: #0369a1;
}

[data-theme="light"] .preview-pill-silver {
    background: rgba(255, 255, 255, 0.82);
    color: #334155;
}

[data-theme="light"] .trusts-diagram-outer {
    background: rgba(255, 255, 255, 0.88);
    border-color: rgba(14, 165, 233, 0.18);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] .trusts-diagram-title {
    color: #0f172a;
    text-shadow: none;
}
[data-theme="light"] .trusts-diagram-meta {
    color: #64748b;
    border-bottom-color: rgba(14, 165, 233, 0.1);
}
[data-theme="light"] .orbit-path {
    stroke: rgba(14, 165, 233, 0.15);
}
[data-theme="light"] .hex-bg-shape {
    background: rgba(255, 255, 255, 0.95);
}
[data-theme="light"] .hex-element h4 {
    color: #334155;
}
[data-theme="light"] .hex-element:hover .hex-bg-shape {
    background: #ffffff;
}
[data-theme="light"] .intersect-node {
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(14, 165, 233, 0.25);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .intersect-inner span {
    color: #0f172a;
}
[data-theme="light"] .intersect-inner small {
    color: #475569;
}
[data-theme="light"] .diagram-ribbon {
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(14, 165, 233, 0.15);
    color: #334155;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.05);
}
[data-theme="light"] .ribbon-top {
    background: rgba(14, 165, 233, 0.06);
    color: #0284c7;
    border-color: rgba(14, 165, 233, 0.25);
}
[data-theme="light"] .vseries-framework-wrapper {
    background: rgba(255, 255, 255, 0.65);
    border-color: rgba(168, 85, 247, 0.15);
}
[data-theme="light"] .vseries-card {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(14, 165, 233, 0.1);
}
[data-theme="light"] .vseries-card:hover {
    background: #ffffff;
}
[data-theme="light"] .vseries-card h5 {
    color: #0f172a;
}
[data-theme="light"] .vseries-card p {
    color: #475569;
}
[data-theme="light"] .step-icon {
    background: #f8fafc;
    border-color: rgba(14, 165, 233, 0.18);
}
[data-theme="light"] .timeline-connector-line {
    background: rgba(14, 165, 233, 0.12);
}
[data-theme="light"] .position-card {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(14, 165, 233, 0.12);
}
[data-theme="light"] .position-card:hover {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.3);
}
[data-theme="light"] .position-card h5 {
    color: #0f172a;
}
[data-theme="light"] .position-card p {
    color: #475569;
}
[data-theme="light"] .opportunities-cta-box {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(248, 250, 252, 0.95) 100%);
    border-color: rgba(14, 165, 233, 0.25);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .cta-content h5 {
    color: #0f172a;
}
[data-theme="light"] .cta-content p {
    color: #334155;
}
[data-theme="light"] .opportunities-positions-container h4 {
    color: #0f172a;
}

/* Responsive media queries for the Opportunities page */
@media (max-width: 1050px) {
    .preview-diagram-section {
        height: 420px;
    }

    .preview-hex {
        width: 165px;
        height: 186px;
        font-size: 1rem;
    }

    .preview-hex i {
        font-size: 1.55rem;
    }

    .preview-cbox-top {
        width: 190px;
        font-size: 0.68rem;
    }

    .preview-cbox-net {
        width: 125px;
        font-size: 0.72rem;
    }

    .preview-cbox-iot {
        width: 190px;
        font-size: 0.68rem;
    }

    .preview-pill {
        font-size: 0.62rem;
        padding: 0.55rem 0.8rem;
    }

    .preview-pill-left,
    .preview-pill-right {
        width: 165px;
    }

    .preview-pill-bl,
    .preview-pill-br {
        width: 180px;
    }
}

@media (max-width: 900px) {
    .preview-trust-showcase {
        padding: 1.1rem 1rem 1.8rem;
    }

    .preview-top-row {
        align-items: center;
        flex-direction: column;
        text-align: center;
    }

    .preview-diagram-section {
        height: auto;
        display: grid;
        grid-template-columns: 1fr;
        gap: 1rem;
        margin-top: 1rem;
    }

    .preview-diagram-svg {
        display: none;
    }

    .preview-hex,
    .preview-center-box,
    .preview-pill {
        position: static;
        transform: none;
        width: 100%;
        max-width: 360px;
        margin: 0 auto;
    }

    .preview-hex,
    .preview-hex-green,
    .preview-hex-green:hover,
    .preview-hex-blue:hover,
    .preview-hex-purple:hover {
        transform: none;
    }

    .preview-hex {
        height: 132px;
        clip-path: none;
        border-radius: 12px;
    }

    .preview-center-box,
    .preview-pill {
        border-radius: 10px;
    }

    .preview-framework-row {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        justify-items: center;
    }

    .preview-fbox {
        width: min(100%, 260px);
    }

    .preview-arrow {
        transform: rotate(90deg);
    }

    .preview-footer-icons {
        gap: 0.8rem;
    }

    .trust-diagram-container {
        height: auto;
        display: flex;
        flex-direction: column;
        gap: 1.5rem;
        align-items: center;
        padding-top: 1rem;
    }
    .trust-diagram-wires {
        display: none; /* Hide svg orbits on small screens to stack elements */
    }
    .hex-element {
        position: relative;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        transform: none !important;
        margin-bottom: 1rem;
    }
    .intersect-node {
        position: relative;
        left: auto !important;
        right: auto !important;
        top: auto !important;
        transform: none !important;
        margin-bottom: 1rem;
    }
    .diagram-ribbon {
        display: none; /* Hide slanted ribbons on mobile */
    }
    .vseries-cards-row {
        grid-template-columns: 1fr;
    }
    .vseries-flow-arrows {
        display: none; /* Hide arrows on vertical stack */
    }
    .vseries-lifecycle-timeline-container {
        display: none;
    }
    .positions-grid {
        grid-template-columns: 1fr;
    }
}

/* ==========================================
   --- TEACHING TAB PROFESSIONAL STYLES ---
   ========================================== */

.teaching-hero {
    margin-bottom: 3.5rem;
    text-align: center;
}
.teaching-hero .section-subtitle {
    color: var(--text-sec);
    font-size: 1.15rem;
    max-width: 800px;
    margin: 0.85rem auto 0;
    line-height: 1.6;
}

/* 1. Teaching Philosophy */
.philosophy-container {
    margin-bottom: 4.5rem;
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 2.5rem;
    position: relative;
    overflow: hidden;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}
.philosophy-container::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(56, 189, 248, 0.04) 0%, transparent 100%);
    pointer-events: none;
}
.philosophy-quote {
    font-size: 1.12rem;
    line-height: 1.7;
    color: var(--text-main);
    margin-bottom: 2.5rem;
    font-style: italic;
    border-left: 4px solid var(--acc-color);
    padding-left: 1.5rem;
}
.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    position: relative;
    z-index: 2;
}
.philosophy-card {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 12px;
    padding: 1.6rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}
.philosophy-card:hover {
    transform: translateY(-4px);
    border-color: var(--acc-color);
    box-shadow: 0 10px 24px rgba(56, 189, 248, 0.18);
    background: rgba(15, 23, 42, 0.85);
}
.philosophy-card .card-icon-box {
    width: 48px;
    height: 48px;
    background: rgba(56, 189, 248, 0.12);
    color: var(--acc-color);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}
.philosophy-card h4 {
    font-size: 1.05rem;
    color: var(--text-main);
    font-weight: 600;
}
.philosophy-card p {
    font-size: 0.88rem;
    color: var(--text-sec);
    line-height: 1.5;
}

/* 2. Interactive Search & Sub-tabs */
.courses-search-section {
    margin-bottom: 2rem;
    display: grid;
    gap: 1.25rem;
}
.courses-search-wrapper {
    display: flex;
    align-items: center;
    background: rgba(10, 18, 38, 0.75);
    border: 1px solid rgba(56, 189, 248, 0.25);
    border-radius: 10px;
    padding: 0.65rem 1.1rem;
    gap: 0.85rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}
.courses-search-wrapper .search-icon {
    color: var(--acc-color);
    font-size: 1rem;
}
#course-search {
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-family: var(--font-body);
    font-size: 0.92rem;
    flex-grow: 1;
}
#course-search::placeholder {
    color: rgba(255, 255, 255, 0.35);
}
.course-count {
    font-size: 0.78rem;
    color: var(--text-sec);
    font-family: var(--font-head);
    font-weight: 600;
    background: rgba(56, 189, 248, 0.1);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    white-space: nowrap;
}

/* Tabs switcher */
.course-tab-row {
    display: flex;
    gap: 0.55rem;
    border-bottom: 1px solid rgba(56, 189, 248, 0.1);
    padding-bottom: 0.75rem;
    flex-wrap: wrap;
}
.course-tab-btn {
    background: rgba(15, 23, 42, 0.45);
    border: 1px solid rgba(56, 189, 248, 0.15);
    color: var(--text-sec);
    padding: 0.5rem 1.1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.28s ease;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.86rem;
}
.course-tab-btn:hover {
    color: var(--acc-color);
    border-color: var(--acc-color);
    background: rgba(56, 189, 248, 0.08);
}
.course-tab-btn.active {
    color: #fff;
    background: linear-gradient(135deg, #0284c7, #0369a1);
    border-color: var(--acc-color);
    box-shadow: 0 4px 15px rgba(2, 132, 199, 0.35);
}

/* 3. Course Directory Grid & Cards */
.course-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
    margin-bottom: 4.5rem;
}
.course-card {
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 12px;
    padding: 1.6rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
    min-height: 210px;
}
.course-card:hover {
    transform: translateY(-4px);
    border-color: var(--acc-color);
    box-shadow: 0 10px 24px rgba(56, 189, 248, 0.15);
    background: rgba(15, 23, 42, 0.7);
}
.course-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.85rem;
    gap: 0.5rem;
}
.course-code {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 0.95rem;
    color: var(--acc-color);
    background: rgba(56, 189, 248, 0.1);
    padding: 0.2rem 0.6rem;
    border-radius: 6px;
    letter-spacing: 0.02em;
}
.badge-container {
    display: flex;
    gap: 0.35rem;
    flex-wrap: wrap;
}
.badge-level {
    font-size: 0.68rem;
    padding: 0.15rem 0.45rem;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}
.badge-grad {
    background: rgba(168, 85, 247, 0.15);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.25);
}
.badge-undergrad {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.25);
}
.badge-cert {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.25);
}
.badge-proposed {
    background: rgba(244, 63, 94, 0.15);
    color: #fb7185;
    border: 1px solid rgba(244, 63, 94, 0.25);
}
.badge-adv {
    background: rgba(56, 189, 248, 0.15);
    color: #7dd3fc;
    border: 1px solid rgba(56, 189, 248, 0.25);
}

.course-card h4 {
    font-size: 1.15rem;
    color: var(--text-main);
    margin-bottom: 0.65rem;
    font-weight: 600;
    line-height: 1.35;
}
.course-terms {
    margin-top: auto;
    font-size: 0.82rem;
    color: var(--text-sec);
    display: flex;
    align-items: center;
    gap: 0.45rem;
    border-top: 1px solid rgba(56, 189, 248, 0.08);
    padding-top: 0.85rem;
}
.course-terms i {
    color: var(--acc-color);
    font-size: 0.85rem;
}

/* 4. New Course Design & Development */
.course-design-section {
    margin-bottom: 4.5rem;
}
.design-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.25rem;
}
.design-card {
    background: rgba(15, 23, 42, 0.5);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-radius: 12px;
    padding: 1.6rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
    position: relative;
    min-height: 160px;
}
.design-card:hover {
    transform: translateY(-4px);
    border-color: var(--acc-color);
    box-shadow: 0 10px 24px rgba(56, 189, 248, 0.15);
    background: rgba(15, 23, 42, 0.65);
}
.design-card-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}
.design-card-year {
    font-size: 0.82rem;
    color: var(--acc-color);
    font-weight: 700;
    font-family: var(--font-head);
}
.design-card h4 {
    font-size: 1.05rem;
    color: var(--text-main);
    line-height: 1.4;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

/* 5. Curriculum Development */
.curriculum-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}
.curriculum-card {
    background: rgba(15, 23, 42, 0.55);
    border: 1px solid rgba(56, 189, 248, 0.15);
    border-left: 4px solid var(--acc-color);
    border-radius: 10px;
    padding: 1.35rem 1.5rem;
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 130px;
}
.curriculum-card:hover {
    transform: translateX(4px);
    border-color: var(--acc-color);
    box-shadow: 0 8px 20px rgba(56, 189, 248, 0.15);
    background: rgba(15, 23, 42, 0.7);
}
.curriculum-role {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-bottom: 0.45rem;
    font-family: var(--font-head);
}
.role-chair {
    color: #fbbf24;
}
.role-cochair {
    color: #60a5fa;
}
.role-member {
    color: #34d399;
}
.curriculum-card h4 {
    font-size: 0.98rem;
    color: var(--text-main);
    margin-bottom: 0.65rem;
    line-height: 1.4;
    font-weight: 600;
}
.curriculum-year {
    font-size: 0.8rem;
    color: var(--text-sec);
    font-weight: 500;
    margin-top: auto;
}

/* --- LIGHT THEME OVERRIDES FOR TEACHING --- */
[data-theme="light"] .philosophy-container {
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(14, 165, 233, 0.15);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] .philosophy-quote {
    color: #0f172a;
}
[data-theme="light"] .philosophy-card {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.15);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.02);
}
[data-theme="light"] .philosophy-card:hover {
    background: #ffffff;
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.08);
}
[data-theme="light"] .philosophy-card h4 {
    color: #0f172a;
}
[data-theme="light"] .philosophy-card p {
    color: #475569;
}
[data-theme="light"] .courses-search-wrapper {
    background: #ffffff;
    border-color: rgba(14, 165, 233, 0.22);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.04);
}
[data-theme="light"] #course-search {
    color: #0f172a;
}
[data-theme="light"] #course-search::placeholder {
    color: #94a3b8;
}
[data-theme="light"] .course-tab-btn {
    background: rgba(255, 255, 255, 0.7);
    border-color: rgba(14, 165, 233, 0.15);
}
[data-theme="light"] .course-tab-btn:hover {
    background: rgba(14, 165, 233, 0.06);
}
[data-theme="light"] .course-tab-btn.active {
    color: #ffffff;
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
}
[data-theme="light"] .course-card {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(14, 165, 233, 0.15);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.02);
}
[data-theme="light"] .course-card:hover {
    background: #ffffff;
    box-shadow: 0 8px 25px rgba(14, 165, 233, 0.1);
}
[data-theme="light"] .course-card h4 {
    color: #0f172a;
}
[data-theme="light"] .course-terms {
    color: #475569;
    border-top-color: rgba(14, 165, 233, 0.08);
}
[data-theme="light"] .design-card {
    background: rgba(255, 255, 255, 0.75);
    border-color: rgba(14, 165, 233, 0.15);
}
[data-theme="light"] .design-card:hover {
    background: #ffffff;
    box-shadow: 0 8px 24px rgba(14, 165, 233, 0.08);
}
[data-theme="light"] .design-card h4 {
    color: #0f172a;
}
[data-theme="light"] .curriculum-card {
    background: rgba(255, 255, 255, 0.8);
    border-color: rgba(14, 165, 233, 0.15);
    border-left-color: var(--acc-color);
}
[data-theme="light"] .curriculum-card:hover {
    background: #ffffff;
    box-shadow: 0 8px 20px rgba(14, 165, 233, 0.08);
}
[data-theme="light"] .curriculum-card h4 {
    color: #0f172a;
}
[data-theme="light"] .curriculum-year {
    color: #475569;
}


/* ==================================================================
   ENHANCEMENT LAYER — 2026 Polish Pass
   Appended last so equal-specificity rules win the cascade.
   Covers: global polish, refined light theme, modern card
   animations, icon micro-interactions, and responsive fixes.
   ================================================================== */

/* ---------- 1. Global polish ---------- */
html { scroll-behavior: smooth; }

body {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

img { max-width: 100%; }

::selection { background: var(--acc-color); color: #04111f; }

* { scrollbar-width: thin; scrollbar-color: var(--acc-color) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--acc-color), #2dd4bf);
    border-radius: 999px;
    border: 2px solid var(--bg-color);
}
::-webkit-scrollbar-thumb:hover { background: var(--acc-color); }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
.theme-toggle:focus-visible {
    outline: 2px solid var(--acc-color);
    outline-offset: 3px;
    border-radius: 6px;
}

/* Section title: animated gradient underline */
.section-title::after {
    background: linear-gradient(90deg, var(--acc-color), #2dd4bf);
    box-shadow: 0 0 12px rgba(56, 189, 248, 0.45);
}

/* ---------- 2. Scroll progress bar + back-to-top ---------- */
#enh-progress {
    position: fixed;
    top: 0;
    left: 0;
    height: 3px;
    width: 0%;
    z-index: 2000;
    background: linear-gradient(90deg, var(--acc-color), #2dd4bf, #818cf8);
    box-shadow: 0 0 10px rgba(56, 189, 248, 0.6);
    transition: width 0.1s linear;
    pointer-events: none;
}

#enh-top {
    position: fixed;
    right: 1.4rem;
    bottom: 1.4rem;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 1px solid var(--border-color);
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    color: var(--acc-color);
    display: grid;
    place-items: center;
    cursor: pointer;
    z-index: 1500;
    opacity: 0;
    transform: translateY(20px) scale(0.8);
    pointer-events: none;
    transition: opacity 0.35s ease, transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s ease, background 0.3s ease;
    box-shadow: 0 8px 24px rgba(2, 8, 23, 0.35);
}
#enh-top.show { opacity: 1; transform: translateY(0) scale(1); pointer-events: auto; }
#enh-top:hover {
    background: var(--acc-color);
    color: #04111f;
    transform: translateY(-3px) scale(1.06);
    box-shadow: 0 12px 30px rgba(56, 189, 248, 0.45);
}
#enh-top svg { width: 20px; height: 20px; }

@media (max-width: 600px) {
    #enh-top { width: 42px; height: 42px; right: 1rem; bottom: 1rem; }
}

/* ---------- 3. Navbar polish ---------- */
.nav-links li a {
    position: relative;
    padding-bottom: 2px;
}
.nav-links li a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -4px;
    height: 2px;
    width: 0;
    border-radius: 2px;
    background: linear-gradient(90deg, var(--acc-color), #2dd4bf);
    transition: width 0.3s ease;
}
.nav-links li a:hover::after,
.nav-links li a.active::after { width: 100%; }
.logo { transition: transform 0.3s ease; }
.logo:hover { transform: translateY(-1px); }

/* ---------- 4. Button polish ---------- */
.btn {
    position: relative;
    overflow: hidden;
}
.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent 0%, rgba(255, 255, 255, 0.28) 50%, transparent 100%);
    transform: translateX(-130%) skewX(-18deg);
    transition: transform 0.7s ease;
    pointer-events: none;
}
.btn:hover::before { transform: translateX(130%) skewX(-18deg); }
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn svg, .btn i { vertical-align: -0.12em; margin-right: 0.5rem; }

/* ---------- 5. Modern card interactions ---------- */
/* Sheen sweep — no existing card uses ::after, so this is safe */
.card,
.teaching-item,
.pub-item,
.contact-form,
.lab-highlight,
.service-mini-card,
.vseries-card,
.position-card,
.course-card,
.design-card,
.curriculum-card,
.philosophy-card,
.project-card,
.student-card,
.alumni-card,
.overview-pillar-card {
    position: relative;
    overflow: hidden;
}
.card::after,
.teaching-item::after,
.pub-item::after,
.contact-form::after,
.lab-highlight::after,
.service-mini-card::after,
.vseries-card::after,
.position-card::after,
.course-card::after,
.design-card::after,
.curriculum-card::after,
.philosophy-card::after,
.project-card::after,
.student-card::after,
.alumni-card::after,
.overview-pillar-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: -80%;
    width: 55%;
    height: 100%;
    background: linear-gradient(115deg, transparent, rgba(255, 255, 255, 0.16), transparent);
    transform: skewX(-20deg);
    opacity: 0;
    pointer-events: none;
    z-index: 3;
}
.card:hover::after,
.teaching-item:hover::after,
.pub-item:hover::after,
.contact-form:hover::after,
.lab-highlight:hover::after,
.service-mini-card:hover::after,
.vseries-card:hover::after,
.position-card:hover::after,
.course-card:hover::after,
.design-card:hover::after,
.curriculum-card:hover::after,
.philosophy-card:hover::after,
.project-card:hover::after,
.student-card:hover::after,
.alumni-card:hover::after,
.overview-pillar-card:hover::after {
    animation: enhSheen 0.95s ease;
}
@keyframes enhSheen {
    0% { left: -80%; opacity: 0; }
    12% { opacity: 1; }
    100% { left: 135%; opacity: 0; }
}

/* Icon badges: pop + spin micro-interaction on card hover */
.project-icon-badge,
.impact-icon,
.position-icon,
.card-icon-box,
.impact-item-icon,
.vision-mini-icon,
.step-icon,
.impact-title-icon,
.prof-chip {
    transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.4s ease, color 0.3s ease;
}
.project-card:hover .project-icon-badge,
.impact-card:hover .impact-icon,
.position-card:hover .position-icon,
.philosophy-card:hover .card-icon-box,
.vseries-card:hover .step-icon {
    transform: scale(1.12) rotate(-6deg);
}
.impact-item:hover .impact-item-icon,
.vision-mini:hover .vision-mini-icon {
    transform: scale(1.15) rotate(8deg);
}

/* Social links: lift + glow */
.social-links a {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}
.social-links a:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 22px rgba(56, 189, 248, 0.35);
}
.social-links a svg { width: 18px; height: 18px; }

/* Footer focus chips: interactive */
.footer-focus span {
    transition: transform 0.3s ease, background 0.3s ease, border-color 0.3s ease, color 0.3s ease;
    cursor: default;
}
.footer-focus span:hover {
    transform: translateY(-3px);
    border-color: var(--acc-color);
    color: var(--acc-color);
}

/* Tag / chip lists: subtle hover */
.custom-tag-list li,
.chip-list span {
    transition: transform 0.3s ease, background 0.3s ease, color 0.3s ease, box-shadow 0.3s ease;
}
.custom-tag-list li:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 18px rgba(56, 189, 248, 0.18);
}

/* Image cards on projects page */
.lab-visuals > div { transition: transform 0.45s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.45s ease; }
.lab-visuals > div:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(2, 8, 23, 0.45);
}
.lab-visuals > div:hover img { transform: scale(1.06); }

/* Pulsing accent dot for news badge */
.news-badge { position: relative; }

/* Theme toggle: smoother icon swap */
.theme-toggle svg { transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1); }
.theme-toggle:hover svg { transform: rotate(40deg) scale(1.08); }

/* ---------- 6. Refined LIGHT THEME ---------- */
[data-theme="light"] {
    --bg-color: #eaeff7;
    --bg-alt: #ffffff;
    --acc-color: #0284c7;
    --text-main: #0f1e33;
    --text-sec: #4d5e76;
    --glass-bg: rgba(255, 255, 255, 0.82);
    --border-color: rgba(2, 132, 199, 0.18);
    --photo-frame: #ffffff;
}

[data-theme="light"] body {
    background:
        radial-gradient(1100px 560px at 10% -6%, rgba(2, 132, 199, 0.12), transparent 60%),
        radial-gradient(1000px 620px at 100% 4%, rgba(13, 148, 136, 0.10), transparent 56%),
        linear-gradient(180deg, #eef2f9 0%, #e4ebf4 100%);
    background-attachment: fixed;
}

[data-theme="light"] canvas#bg-canvas { opacity: 0.3; }

[data-theme="light"] nav {
    background: rgba(255, 255, 255, 0.78);
    border-bottom: 1px solid rgba(2, 132, 199, 0.14);
}

[data-theme="light"] .nav-links li a { color: #475569; }
[data-theme="light"] .nav-links li a:hover,
[data-theme="light"] .nav-links li a.active { color: var(--acc-color); }
[data-theme="light"] .mobile-menu-btn .bar { background-color: #0f1e33; }

[data-theme="light"] .glitch,
[data-theme="light"] .logo,
[data-theme="light"] .hero-affiliation { color: #0f1e33; }

[data-theme="light"] .section-title::after {
    box-shadow: 0 0 12px rgba(2, 132, 199, 0.3);
}

/* Unified soft, layered surfaces for light cards */
[data-theme="light"] .card,
[data-theme="light"] .teaching-item,
[data-theme="light"] .contact-form,
[data-theme="light"] .pub-item,
[data-theme="light"] .course-card,
[data-theme="light"] .design-card,
[data-theme="light"] .curriculum-card,
[data-theme="light"] .philosophy-card,
[data-theme="light"] .vseries-card,
[data-theme="light"] .position-card,
[data-theme="light"] .service-mini-card,
[data-theme="light"] .alumni-card,
[data-theme="light"] .student-card,
[data-theme="light"] .project-card,
[data-theme="light"] .impact-card,
[data-theme="light"] .overview-pillar-card,
[data-theme="light"] .lab-highlight,
[data-theme="light"] .bio-node,
[data-theme="light"] .research-filter-item {
    background: rgba(255, 255, 255, 0.94);
    border: 1px solid rgba(15, 30, 55, 0.09);
    box-shadow: 0 1px 2px rgba(15, 30, 55, 0.04), 0 10px 28px rgba(15, 30, 55, 0.06);
}

[data-theme="light"] .card:hover,
[data-theme="light"] .teaching-item:hover,
[data-theme="light"] .pub-item:hover,
[data-theme="light"] .course-card:hover,
[data-theme="light"] .design-card:hover,
[data-theme="light"] .curriculum-card:hover,
[data-theme="light"] .philosophy-card:hover,
[data-theme="light"] .vseries-card:hover,
[data-theme="light"] .position-card:hover,
[data-theme="light"] .service-mini-card:hover,
[data-theme="light"] .alumni-card:hover,
[data-theme="light"] .student-card:hover,
[data-theme="light"] .project-card:hover,
[data-theme="light"] .impact-card:hover,
[data-theme="light"] .overview-pillar-card:hover {
    border-color: rgba(2, 132, 199, 0.4);
    box-shadow: 0 2px 4px rgba(15, 30, 55, 0.05), 0 18px 40px rgba(2, 132, 199, 0.14);
}

/* Light-mode sheen tinted with accent (white is invisible on white) */
[data-theme="light"] .card::after,
[data-theme="light"] .teaching-item::after,
[data-theme="light"] .pub-item::after,
[data-theme="light"] .contact-form::after,
[data-theme="light"] .lab-highlight::after,
[data-theme="light"] .service-mini-card::after,
[data-theme="light"] .vseries-card::after,
[data-theme="light"] .position-card::after,
[data-theme="light"] .course-card::after,
[data-theme="light"] .design-card::after,
[data-theme="light"] .curriculum-card::after,
[data-theme="light"] .philosophy-card::after,
[data-theme="light"] .project-card::after,
[data-theme="light"] .student-card::after,
[data-theme="light"] .alumni-card::after,
[data-theme="light"] .impact-card::after,
[data-theme="light"] .overview-pillar-card::after {
    background: linear-gradient(115deg, transparent, rgba(2, 132, 199, 0.12), transparent);
}

[data-theme="light"] .primary-btn {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: #ffffff;
    box-shadow: 0 6px 18px rgba(2, 132, 199, 0.3);
}
[data-theme="light"] .primary-btn:hover {
    background: linear-gradient(135deg, #0284c7, #0369a1);
    box-shadow: 0 10px 26px rgba(2, 132, 199, 0.4);
}
[data-theme="light"] .secondary-btn:hover { background: rgba(2, 132, 199, 0.08); }

[data-theme="light"] .social-links a {
    background: rgba(2, 132, 199, 0.07);
    border-color: rgba(2, 132, 199, 0.2);
}
[data-theme="light"] .social-links a:hover {
    background: var(--acc-color);
    color: #ffffff;
    box-shadow: 0 10px 22px rgba(2, 132, 199, 0.3);
}

[data-theme="light"] #enh-top { box-shadow: 0 8px 24px rgba(15, 30, 55, 0.12); }
[data-theme="light"] #enh-top:hover { color: #ffffff; }

[data-theme="light"] .form-group input,
[data-theme="light"] .form-group textarea {
    background: #ffffff;
    color: #0f1e33;
    border-color: rgba(15, 30, 55, 0.18);
}

/* ---------- 7. Responsive fixes ---------- */

/* Tablet: keep the 8-item nav from crowding before the mobile menu kicks in */
@media (max-width: 1024px) and (min-width: 769px) {
    .nav-links { gap: 0.75rem; }
    .nav-links li a { font-size: 0.82rem; }
    .nav-container { padding: 0 1.25rem; }
}

/* Small tablets / large phones */
@media (max-width: 600px) {
    section { padding: 64px 0; }

    .container,
    .nav-container,
    .hero-content { padding-left: 1.1rem; padding-right: 1.1rem; }

    .section-title { font-size: 1.85rem; }
    .glitch { font-size: 2rem; }
    .tagline { font-size: 1.12rem; }
    .hero-role { font-size: 1rem; }
    .hero { padding-top: 92px; }

    .hero-buttons { width: 100%; gap: 0.7rem; }
    .hero-buttons .btn { flex: 1 1 100%; text-align: center; }

    .card { padding: 1.5rem; }
    .contact-form { padding: 1.5rem; }
    .quick-pubs-panel { padding: 1.15rem; }
    .quick-pubs-list { margin-left: 0.85rem; }

    .pub-data-model { grid-template-columns: 1fr; }

    /* Horizontal scroll for tab strips */
    .topic-tabs {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        padding-bottom: 0.4rem;
        scrollbar-width: none;
    }
    .topic-tabs::-webkit-scrollbar { display: none; }
    .topic-tabs .tab-btn { white-space: nowrap; flex-shrink: 0; }

    .footer-focus span { font-size: 0.64rem; }
    .footer-bottom { gap: 0.5rem; }

    .img-wrapper { width: min(100%, 300px); }

    .long-bio-metrics span { font-size: 0.72rem; }
}

/* Small phones */
@media (max-width: 400px) {
    .glitch { font-size: 1.7rem; }
    .section-title { font-size: 1.55rem; }
    .logo { font-size: 1.2rem; }
    .tagline { font-size: 1rem; }
    .nav-container { padding: 0 1rem; }
    section { padding: 52px 0; }
    .card,
    .contact-form { padding: 1.25rem; }
}

/* Heading & chip icon styling for the newly-added icons */
.about-text h3 > i,
.lab-highlight h3 > i,
.lab-overview h3 > i {
    color: var(--acc-color);
    margin-right: 0.5rem;
}
.custom-tag-list li > i { margin-right: 0.45rem; }
.contact-info h3 > i { color: var(--acc-color); margin-right: 0.5rem; }

/* Respect reduced motion for all the new effects */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .card::after, .teaching-item::after, .pub-item::after, .contact-form::after,
    .lab-highlight::after, .service-mini-card::after, .vseries-card::after,
    .position-card::after, .course-card::after, .design-card::after,
    .curriculum-card::after, .philosophy-card::after, .project-card::after,
    .student-card::after, .alumni-card::after, .impact-card::after,
    .overview-pillar-card::after { display: none; }
    .btn::before { display: none; }
    #enh-progress { transition: none; }
    .project-shot img { transition: none; }
}

/* ==================================================================
   PROJECT / LAB — in-page tab navigation + theme-aware gallery
   ================================================================== */

/* Tab strip (reuses .research-topic-tabs / .research-tab-btn look) */
.project-tabs { margin-bottom: 1.6rem; }
.project-tabs .research-tab-btn > i { margin-right: 0.45rem; }

/* Switcher spacing */
.project-switcher { margin-top: 0.5rem; }
.project-panel { min-height: 0; }
.project-panel h3 > i {
    color: var(--acc-color);
    margin-right: 0.55rem;
}
.project-panel-note {
    color: var(--text-sec);
    max-width: 760px;
    margin-bottom: 1.3rem;
    font-size: 0.98rem;
}

/* Responsive image gallery inside each panel */
.project-gallery {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.25rem;
    align-items: start;
}
.project-shot {
    margin: 0;
    border-radius: 14px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: rgba(8, 15, 30, 0.45);
    box-shadow: 0 10px 30px rgba(2, 8, 23, 0.35);
    transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1), box-shadow 0.4s ease, border-color 0.4s ease;
    position: relative;
}
.project-shot:hover {
    transform: translateY(-6px);
    border-color: var(--acc-color);
    box-shadow: 0 20px 44px rgba(56, 189, 248, 0.22);
}
.project-shot img {
    display: block;
    width: 100%;
    height: auto;
    transition: transform 0.55s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.project-shot:hover img { transform: scale(1.04); }

/* Theme-aware image swapping — follows the dark/white asset spec exactly */
.theme-img { display: block; }
.theme-img.theme-light { display: none; }
[data-theme="light"] .theme-img.theme-dark { display: none; }
[data-theme="light"] .theme-img.theme-light { display: block; }

[data-theme="light"] .project-shot {
    background: #ffffff;
    border-color: rgba(15, 30, 55, 0.1);
    box-shadow: 0 1px 2px rgba(15, 30, 55, 0.04), 0 12px 30px rgba(15, 30, 55, 0.08);
}
[data-theme="light"] .project-shot:hover {
    border-color: rgba(2, 132, 199, 0.4);
    box-shadow: 0 18px 40px rgba(2, 132, 199, 0.16);
}

@media (max-width: 600px) {
    .project-gallery { grid-template-columns: 1fr; gap: 1rem; }
    .project-tabs .research-tab-btn { font-size: 0.84rem; padding: 0.5rem 0.8rem; }
}

/* ---------- "All" view + cool transitions ---------- */

/* Stack spacing when multiple panels are shown (All view) */
.project-switcher .project-panel { margin-bottom: 1.4rem; }
.project-switcher .project-panel:last-child { margin-bottom: 0; }

/* Disable the inherited researchPanelIn; entrance is driven by .panel-anim
   so we can stagger it from JS (no awkward delay on single-section views). */
.project-panel.is-visible-panel { animation: none; }

.project-panel.panel-anim {
    animation: projectPanelIn 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}

@keyframes projectPanelIn {
    from {
        opacity: 0;
        transform: translateY(28px) scale(0.985);
        filter: blur(7px);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
        filter: blur(0);
    }
}

/* Gallery images rise in softly with the panel */
.project-panel.panel-anim .project-shot {
    animation: projectShotIn 0.6s cubic-bezier(0.2, 0.7, 0.2, 1) both;
    animation-delay: 0.12s;
}
.project-panel.panel-anim .project-shot:nth-child(2) { animation-delay: 0.22s; }
.project-panel.panel-anim .project-shot:nth-child(3) { animation-delay: 0.32s; }

@keyframes projectShotIn {
    from { opacity: 0; transform: translateY(20px) scale(0.97); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

/* Cooler, more tactile tabs */
.project-tabs .research-tab-btn {
    position: relative;
    overflow: hidden;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.28s ease, color 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}
.project-tabs .research-tab-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.22), transparent);
    transform: translateX(-130%) skewX(-18deg);
    transition: transform 0.6s ease;
    pointer-events: none;
}
.project-tabs .research-tab-btn:hover::before { transform: translateX(130%) skewX(-18deg); }
.project-tabs .research-tab-btn:hover { transform: translateY(-2px); }
.project-tabs .research-tab-btn.active {
    background: linear-gradient(135deg, var(--acc-color), #2dd4bf);
    border-color: transparent;
    color: #04111f;
    box-shadow: 0 8px 22px rgba(56, 189, 248, 0.4);
    transform: translateY(-1px);
}
[data-theme="light"] .project-tabs .research-tab-btn.active {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: #ffffff;
    box-shadow: 0 8px 22px rgba(2, 132, 199, 0.35);
}

@media (prefers-reduced-motion: reduce) {
    .project-panel.panel-anim,
    .project-panel.panel-anim .project-shot { animation: none; }
    .project-tabs .research-tab-btn::before { display: none; }
}

/* ==================================================================
   LIGHT THEME FIX — Research overview "impact" cards
   These were left dark in light mode (dark-on-dark, invisible titles).
   Convert the whole card group to a consistent light appearance.
   ================================================================== */
[data-theme="light"] .overview-impact-card {
    background: linear-gradient(150deg, rgba(2, 132, 199, 0.10), rgba(255, 255, 255, 0.97));
    border: 1px solid rgba(2, 132, 199, 0.22);
    box-shadow: 0 1px 2px rgba(15, 30, 55, 0.04), 0 12px 30px rgba(15, 30, 55, 0.08);
}

/* Titles + subtitles now readable */
[data-theme="light"] .overview-impact-card h4,
[data-theme="light"] .impact-card-head {
    color: #0f1e33;
}
[data-theme="light"] .impact-sub {
    color: #0369a1;
}

/* Title icon chip */
[data-theme="light"] .impact-title-icon {
    background: rgba(2, 132, 199, 0.12);
    border-color: rgba(2, 132, 199, 0.3);
    color: #0284c7;
}

/* Inner metric / item boxes -> light surfaces */
[data-theme="light"] .impact-items div,
[data-theme="light"] .impact-metrics div {
    background: #ffffff;
    border-color: rgba(2, 132, 199, 0.16);
    box-shadow: 0 1px 2px rgba(15, 30, 55, 0.04);
}
[data-theme="light"] .impact-items div:hover,
[data-theme="light"] .impact-metrics div:hover {
    border-color: rgba(2, 132, 199, 0.45);
    box-shadow: 0 8px 18px rgba(2, 132, 199, 0.14);
}

/* Inner box text */
[data-theme="light"] .impact-items strong,
[data-theme="light"] .impact-metrics strong {
    color: #0f1e33;
}
[data-theme="light"] .impact-metrics strong {
    color: #0284c7;
}
[data-theme="light"] .impact-items span,
[data-theme="light"] .impact-metrics span {
    color: #51637a;
}

/* Inner icon chips */
[data-theme="light"] .impact-item-icon {
    background: rgba(2, 132, 199, 0.12);
    border-color: rgba(2, 132, 199, 0.28);
    color: #0284c7;
}

/* ==================================================================
   RESEARCH "All" view — cool scroll-reveal
   ================================================================== */

/* On the research page the panels are shown together (All view), so we
   disable the instant pop and let each big section reveal on scroll. */
#research .research-filter-item.is-visible-panel { animation: none; }

/* Spacing between stacked sections in the All view */
#research .research-switcher .research-filter-item.is-visible-panel {
    margin-bottom: 1.6rem;
}

/* Cool, tactile tabs (shared look with the project tabs) */
.research-tabs .research-tab-btn {
    position: relative;
    overflow: hidden;
    transition: transform 0.25s cubic-bezier(0.34, 1.56, 0.64, 1), background 0.28s ease, color 0.28s ease, border-color 0.28s ease, box-shadow 0.28s ease;
}
.research-tabs .research-tab-btn > i { margin-right: 0.4rem; }
.research-tabs .research-tab-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, transparent, rgba(255, 255, 255, 0.22), transparent);
    transform: translateX(-130%) skewX(-18deg);
    transition: transform 0.6s ease;
    pointer-events: none;
}
.research-tabs .research-tab-btn:hover::before { transform: translateX(130%) skewX(-18deg); }
.research-tabs .research-tab-btn:hover { transform: translateY(-2px); }
.research-tabs .research-tab-btn.active {
    background: linear-gradient(135deg, var(--acc-color), #2dd4bf);
    border-color: transparent;
    color: #04111f;
    box-shadow: 0 8px 22px rgba(56, 189, 248, 0.4);
    transform: translateY(-1px);
}
[data-theme="light"] .research-tabs .research-tab-btn.active {
    background: linear-gradient(135deg, #0ea5e9, #0284c7);
    color: #ffffff;
    box-shadow: 0 8px 22px rgba(2, 132, 199, 0.35);
}

@media (prefers-reduced-motion: reduce) {
    #research .research-filter-item.slide-up { transform: none; filter: none; transition: opacity 0.3s ease; }
    .r-reveal { opacity: 1 !important; transform: none !important; filter: none !important; }
    .research-tabs .research-tab-btn::before { display: none; }
}