:root {
    /* Colors */
    --color-cyan: #00D4FF;
    --color-orange: #FF6B35;
    --color-green: #7FFF6B;
    --color-azure-5: #080C10;
    --color-azure-7: #0D1218;
    --color-azure-31: #3D4F60;
    --color-azure-54: #7A8A99;
    --color-grey-93: #E8EDF2;
    --color-white-7: rgba(255, 255, 255, 0.07);
    --color-cyan-5: rgba(0, 212, 255, 0.05);
    --color-cyan-3: rgba(0, 212, 255, 0.03);
    --color-cyan-6: rgba(0, 212, 255, 0.06);
    --color-black-50: rgba(0, 0, 0, 0.5);
    --color-azure-85: rgba(8, 12, 16, 0.85);

    /* Fonts */
    --font-mono: 'Space Mono', monospace;
    --font-display: 'Syne', sans-serif;
    --font-body: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-body);
    background-color: #000;
    color: var(--color-grey-93);
    min-height: 100vh;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 64px;
    background: var(--color-azure-85);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-white-7);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 48px;
    z-index: 100;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
}

.nav-logo-arrow {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 13px;
    color: var(--color-orange);
    letter-spacing: 1.95px;
}

.nav-logo-text {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 13px;
    color: var(--color-cyan);
    letter-spacing: 1.95px;
}

.nav-menu {
    display: flex;
    list-style: none;
    height: 100%;
}

.nav-menu-item {
    height: 100%;
}

.nav-menu-link {
    display: flex;
    align-items: center;
    height: 100%;
    padding: 0 18px;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1.32px;
    text-transform: uppercase;
    text-decoration: none;
    color: var(--color-azure-54);
    border-bottom: 2px solid transparent;
    transition: all 0.3s ease;
}

.nav-menu-link:hover,
.nav-menu-link.active {
    color: var(--color-cyan);
    border-bottom-color: var(--color-cyan);
}

.nav-cta {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1.1px;
    text-transform: uppercase;
    color: var(--color-cyan);
    text-decoration: none;
    border: 1px solid var(--color-cyan);
    padding: 9px 21px;
    transition: all 0.3s ease;
}

.nav-cta:hover {
    background: var(--color-cyan);
    color: var(--color-azure-5);
}

.nav.scrolled {
    background: rgba(8, 12, 16, 0.97);
    border-bottom-color: rgba(0, 212, 255, 0.12);
    box-shadow: 0 1px 24px rgba(0, 0, 0, 0.6);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 820px;
    padding: 64px 260px 0;
    overflow: hidden;
    background:
        linear-gradient(180deg, var(--color-cyan-3) 1.67%, transparent 1.67%),
        linear-gradient(90deg, var(--color-cyan-3) 1.67%, transparent 1.67%);
    background-size: 60px 60px;
}

.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 800px;
    height: 800px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: -100px;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.05) 0%, transparent 70%);
}

.hero-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 48px;
    height: 756px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    padding-right: 60px;
}

.hero-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 28px;
}

.hero-label-line {
    width: 32px;
    height: 1px;
    background: var(--color-orange);
}

.hero-label-text {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 2.2px;
    text-transform: uppercase;
    color: var(--color-orange);
}

.hero-title {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 72px;
    line-height: 75.6px;
    letter-spacing: -1.44px;
    color: var(--color-grey-93);
    margin-bottom: 27px;
}

.hero-title-gradient {
    background: linear-gradient(119deg, #00D4FF 0%, #7FFF6B 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-family: var(--font-body);
    font-weight: 300;
    font-size: 17px;
    line-height: 28.9px;
    color: var(--color-azure-54);
    max-width: 465px;
    margin-bottom: 44px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
}

.btn-primary {
    font-family: var(--font-mono);
    font-weight: 700;
    font-size: 11px;
    letter-spacing: 1.32px;
    text-transform: uppercase;
    color: var(--color-azure-5);
    background: var(--color-cyan);
    padding: 14px 32px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
    box-shadow: 0 0 24px rgba(0, 212, 255, 0.45);
}

.btn-secondary {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1.32px;
    text-transform: uppercase;
    color: var(--color-azure-54);
    background: transparent;
    border: 1px solid var(--color-white-7);
    padding: 15px 33px;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

/* Network Panel */
.network-panel {
    background: var(--color-azure-7);
    border: 1px solid var(--color-white-7);
    height: 520px;
    position: relative;
    overflow: hidden;
}

.network-panel canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100% !important;
    height: 100% !important;
}

/* Visualization Info Bar */
.viz-info-bar {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 48px;
    background: rgba(8, 12, 16, 0.9);
    border-top: 1px solid var(--color-white-7);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 12px;
    z-index: 10;
}

.viz-info-left {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.viz-info-title {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-azure-54);
    letter-spacing: 0.5px;
}

.viz-info-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 700;
    color: var(--color-cyan);
    text-decoration: none;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 8px 14px;
    border: 1px solid var(--color-cyan);
    border-radius: 4px;
    transition: all 0.2s ease;
}

.viz-info-btn:hover {
    background: var(--color-cyan);
    color: #000;
}

/* Visualization Navigation Controls */
.viz-nav-controls {
    position: absolute;
    top: 50%;
    left: 12px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 10;
}

.viz-nav-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(8, 12, 16, 0.85);
    border: 1px solid var(--color-white-15);
    border-radius: 6px;
    color: var(--color-grey-93);
    cursor: pointer;
    transition: all 0.2s ease;
}

.viz-nav-btn:hover {
    background: var(--color-cyan);
    border-color: var(--color-cyan);
    color: #000;
}

.viz-nav-btn.play-pause {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--color-cyan);
    color: var(--color-cyan);
}

/* Visualization Dots */
.viz-dots {
    position: absolute;
    top: 50%;
    right: 12px;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 8px;
    z-index: 10;
}

.viz-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-white-15);
    border: 1px solid var(--color-white-30);
    cursor: pointer;
    transition: all 0.3s ease;
    padding: 0;
}

.viz-dot:hover {
    background: var(--color-cyan);
    border-color: var(--color-cyan);
    transform: scale(1.2);
}

.viz-dot.active {
    background: var(--color-cyan);
    border-color: var(--color-cyan);
    transform: scale(1.3);
}

.network-panel::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
        linear-gradient(180deg, var(--color-cyan-6) 2.5%, transparent 2.5%),
        linear-gradient(90deg, var(--color-cyan-6) 2.5%, transparent 2.5%);
    background-size: 40px 40px;
}

.network-panel::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-cyan-3) 0%, transparent 50%, rgba(255, 107, 53, 0.03) 100%);
}

.network-header {
    position: absolute;
    top: 16px;
    left: 12px;
    right: 12px;
    display: flex;
    justify-content: space-between;
    z-index: 2;
}

.network-label {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.9px;
    text-transform: uppercase;
    opacity: 0.7;
}

.network-label-live {
    color: var(--color-cyan);
}

.network-label-nodes {
    color: var(--color-green);
}

.network-mode {
    font-family: var(--font-mono);
    font-size: 9px;
    letter-spacing: 0.72px;
    color: var(--color-azure-31);
    position: absolute;
    top: 36px;
    left: 12px;
    z-index: 2;
}

/* Network visualization SVG */
.network-svg {
    position: absolute;
    top: 50px;
    left: 0;
    right: 0;
    height: 380px;
    z-index: 1;
}

/* Network nodes */
.network-node {
    position: absolute;
    width: 8px;
    height: 8px;
    border-radius: 4px;
    z-index: 3;
}

.network-node-cyan {
    background: var(--color-cyan);
    box-shadow: 0 0 12px var(--color-cyan);
}

.network-node-orange {
    background: var(--color-orange);
    box-shadow: 0 0 12px var(--color-orange);
}

.network-node-green {
    background: var(--color-green);
    box-shadow: 0 0 12px var(--color-green);
}

.network-console {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--color-black-50);
    border-top: 1px solid var(--color-white-7);
    padding: 13px 12px 12px;
    z-index: 2;
}

.console-line {
    font-family: var(--font-mono);
    font-size: 10px;
    line-height: 16px;
    margin-bottom: 4px;
    animation: typewriter 2s steps(40) infinite;
}

.console-line:nth-child(1) { color: var(--color-cyan); }
.console-line:nth-child(2) { color: var(--color-orange); }
.console-line:nth-child(3) { color: var(--color-green); }

@keyframes typewriter {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

/* Ticker */
.ticker {
    background: var(--color-cyan-5);
    border-top: 1px solid var(--color-white-7);
    border-bottom: 1px solid var(--color-white-7);
    padding: 11px 0;
    overflow: hidden;
}

.ticker-container {
    display: flex;
    gap: 4.5px;
    animation: ticker 30s linear infinite;
}

@keyframes ticker {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.ticker-item {
    display: flex;
    gap: 8px;
    padding: 5px 40px;
    white-space: nowrap;
}

.ticker-arrow {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-cyan);
    letter-spacing: 1.32px;
}

.ticker-text {
    font-family: var(--font-mono);
    font-size: 11px;
    color: var(--color-azure-54);
    letter-spacing: 1.32px;
}

/* Stats */
.stats {
    background: var(--color-azure-7);
    border-top: 1px solid var(--color-white-7);
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.stat-item {
    padding: 28px 48px;
    border-right: 1px solid var(--color-white-7);
}

.stat-item:last-child {
    border-right: none;
}

.stat-value {
    font-family: var(--font-display);
    font-weight: 800;
    font-size: 36px;
    color: var(--color-cyan);
    margin-bottom: 5px;
}

.stat-label {
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 1.1px;
    text-transform: uppercase;
    color: var(--color-azure-54);
}

/* Featured Research */
.featured {
    max-width: 1400px;
    margin: 0 auto;
    padding: 60px 48px;
}

.featured-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 13px;
    border-bottom: 1px solid var(--color-white-7);
    margin-bottom: 28px;
}

.featured-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 20px;
    color: var(--color-grey-93);
}

.featured-line {
    flex: 1;
    height: 1px;
    background: var(--color-white-7);
}

.featured-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    background: var(--color-white-7);
}

.research-card {
    background: var(--color-azure-7);
    padding: 31.5px 32px;
    cursor: pointer;
    transition: background 0.25s ease, box-shadow 0.25s ease;
}

.research-card:hover {
    background: rgba(0, 212, 255, 0.04);
    box-shadow: inset 0 0 0 1px rgba(0, 212, 255, 0.3);
}

.research-category {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 12px;
}

.research-dot {
    width: 8px;
    height: 8px;
    border-radius: 4px;
    background: var(--color-cyan);
}

.research-category-text {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.research-category-cyan { color: var(--color-cyan); }
.research-category-orange { color: var(--color-orange); }
.research-category-green { color: var(--color-green); }

.research-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 17px;
    line-height: 22.1px;
    color: var(--color-grey-93);
    margin-bottom: 8px;
}

.research-description {
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 20.8px;
    color: var(--color-azure-54);
}

/* People Section */
.people-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1px;
    background: var(--color-white-7);
    max-width: 900px;
    margin-bottom: 24px;
}

.people-card {
    background: var(--color-azure-7);
    padding: 31.5px 32px;
}

.people-name {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 17px;
    color: var(--color-grey-93);
    margin-bottom: 4px;
}

.people-role {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-cyan);
    margin-bottom: 12px;
}

.people-affiliation {
    font-family: var(--font-body);
    font-size: 13px;
    color: var(--color-azure-54);
    margin-bottom: 8px;
}

.people-focus {
    font-family: var(--font-body);
    font-size: 13px;
    line-height: 18px;
    color: var(--color-azure-31);
    margin-bottom: 12px;
}

.people-links {
    display: flex;
    gap: 16px;
}

.people-link {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    color: var(--color-azure-54);
    text-decoration: none;
    transition: color 0.3s ease;
}

.people-link:hover {
    color: var(--color-cyan);
}

.people-context {
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 22px;
    color: var(--color-azure-54);
    max-width: 700px;
    border-left: 2px solid var(--color-cyan);
    padding-left: 16px;
}

/* Join Section */
.join-section {
    background: var(--color-azure-7);
    border-top: 1px solid var(--color-white-7);
    padding: 60px 48px;
}

.join-container {
    max-width: 700px;
    margin: 0 auto;
}

.join-title {
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 20px;
    color: var(--color-grey-93);
    margin-bottom: 12px;
}

.join-text {
    font-family: var(--font-body);
    font-size: 14px;
    line-height: 22px;
    color: var(--color-azure-54);
    margin-bottom: 32px;
}

.join-form {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group label {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-azure-54);
}

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-body);
    font-size: 14px;
    color: var(--color-grey-93);
    background: var(--color-azure-5);
    border: 1px solid var(--color-white-7);
    padding: 12px 14px;
    outline: none;
    transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--color-cyan);
}

.form-group select {
    cursor: pointer;
}

.form-group select option {
    background: var(--color-azure-5);
    color: var(--color-grey-93);
}

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

/* Footer */
.footer {
    background: var(--color-azure-7);
    border-top: 1px solid var(--color-white-7);
    padding: 41px 48px 40px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-brand {
    font-family: var(--font-mono);
    font-size: 12px;
    letter-spacing: 1.8px;
    color: var(--color-cyan);
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-link {
    font-family: var(--font-mono);
    font-size: 10px;
    letter-spacing: 1px;
    text-transform: uppercase;
    color: var(--color-azure-31);
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-link:hover {
    color: var(--color-cyan);
}

.footer-copyright {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--color-azure-31);
}

/* Fade-in on scroll */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.55s ease, transform 0.55s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Responsive */
@media (max-width: 1400px) {
    .hero {
        padding: 64px 48px 0;
    }
}

@media (max-width: 1024px) {
    .hero-container {
        grid-template-columns: 1fr;
        height: auto;
        padding: 120px 24px 60px;
    }

    .hero-content {
        padding-right: 0;
        margin-bottom: 40px;
    }

    .hero-title {
        font-size: 48px;
        line-height: 52px;
    }

    .network-panel {
        height: 400px;
    }

    .nav-menu {
        display: none;
    }

    .stats {
        grid-template-columns: 1fr;
    }

    .stat-item {
        border-right: none;
        border-bottom: 1px solid var(--color-white-7);
    }

    .featured-grid {
        grid-template-columns: 1fr;
    }

    .people-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .join-section {
        padding: 40px 24px;
    }

    .footer {
        flex-direction: column;
        gap: 24px;
        text-align: center;
    }
}

/* Mobile Styles - Phones */
@media (max-width: 768px) {
    /* Navigation */
    .nav {
        padding: 0 16px;
        height: 56px;
    }

    .nav-logo-arrow {
        font-size: 11px;
    }

    .nav-logo-text {
        font-size: 11px;
    }

    .nav-cta {
        display: none;
    }

    /* Mobile Menu Button */
    .mobile-menu-btn {
        display: flex;
        width: 40px;
        height: 40px;
        align-items: center;
        justify-content: center;
        background: transparent;
        border: 1px solid var(--color-white-7);
        border-radius: 4px;
        cursor: pointer;
        padding: 0;
    }

    .mobile-menu-btn svg {
        width: 20px;
        height: 20px;
        stroke: var(--color-azure-54);
    }

    /* Mobile Menu Overlay */
    .mobile-menu {
        position: fixed;
        top: 56px;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--color-azure-85);
        backdrop-filter: blur(12px);
        z-index: 99;
        display: none;
        flex-direction: column;
        padding: 24px;
    }

    .mobile-menu.active {
        display: flex;
    }

    .mobile-menu-link {
        font-family: var(--font-mono);
        font-size: 16px;
        letter-spacing: 1.5px;
        text-transform: uppercase;
        color: var(--color-grey-93);
        text-decoration: none;
        padding: 18px 0;
        border-bottom: 1px solid var(--color-white-7);
        transition: color 0.2s ease;
        min-height: 56px;
        display: flex;
        align-items: center;
    }

    .mobile-menu-link:hover,
    .mobile-menu-link.active {
        color: var(--color-cyan);
    }

    .mobile-menu-cta {
        margin-top: 24px;
        font-family: var(--font-mono);
        font-size: 14px;
        letter-spacing: 1.2px;
        text-transform: uppercase;
        color: #000;
        background: var(--color-cyan);
        border: none;
        padding: 16px 24px;
        text-align: center;
        text-decoration: none;
        display: block;
        min-height: 56px;
    }

    /* Hero */
    .hero {
        min-height: auto;
        padding: 56px 16px 0;
        background-size: 40px 40px;
    }

    .hero-container {
        grid-template-columns: 1fr;
        padding: 80px 16px 40px;
        height: auto;
    }

    .hero-content {
        margin-bottom: 32px;
    }

    .hero-label {
        margin-bottom: 16px;
    }

    .hero-label-line {
        width: 24px;
    }

    .hero-label-text {
        font-size: 10px;
        letter-spacing: 1.5px;
    }

    .hero-title {
        font-size: 32px;
        line-height: 38px;
        letter-spacing: -0.5px;
        margin-bottom: 16px;
    }

    .hero-description {
        font-size: 14px;
        line-height: 22px;
        max-width: 100%;
        margin-bottom: 24px;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 12px;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        text-align: center;
        padding: 14px 24px;
        font-size: 11px;
    }

    /* Network Panel */
    .network-panel {
        height: 300px;
        margin: 0 16px;
        border-radius: 8px;
    }

    .network-header {
        top: 12px;
        left: 8px;
        right: 8px;
    }

    .network-label {
        font-size: 8px;
    }

    .network-mode {
        top: 28px;
        left: 8px;
        font-size: 8px;
    }

    .viz-nav-controls {
        left: 8px;
        gap: 4px;
    }

    .viz-nav-btn {
        width: 32px;
        height: 32px;
    }

    .viz-dots {
        right: 8px;
        gap: 4px;
    }

    .viz-dot {
        width: 8px;
        height: 8px;
    }

    .viz-info-bar {
        height: 40px;
        padding: 0 8px;
    }

    .viz-info-title {
        font-size: 9px;
    }

    .viz-info-btn {
        font-size: 9px;
        padding: 6px 10px;
        letter-spacing: 0.5px;
    }

    /* Ticker */
    .ticker {
        padding: 8px 0;
    }

    .ticker-item {
        padding: 4px 24px;
        gap: 6px;
    }

    .ticker-arrow,
    .ticker-text {
        font-size: 9px;
    }

    /* Stats */
    .stats {
        grid-template-columns: 1fr;
    }

    .stat-item {
        padding: 20px 16px;
        text-align: center;
    }

    .stat-value {
        font-size: 28px;
    }

    .stat-label {
        font-size: 10px;
    }

    /* Featured */
    .featured {
        padding: 40px 16px;
    }

    .featured-title {
        font-size: 16px;
    }

    .research-card {
        padding: 20px 16px;
    }

    .research-title {
        font-size: 15px;
        line-height: 20px;
    }

    .research-description {
        font-size: 12px;
        line-height: 18px;
    }

    /* People */
    .people-grid {
        grid-template-columns: 1fr;
    }

    .people-card {
        padding: 20px 16px;
    }

    .people-name {
        font-size: 15px;
    }

    .people-context {
        font-size: 13px;
        line-height: 20px;
        margin-top: 16px;
    }

    /* Join */
    .join-section {
        padding: 40px 16px;
    }

    .join-title {
        font-size: 18px;
    }

    .join-text {
        font-size: 13px;
    }

    .join-form {
        gap: 12px;
    }

    .form-group input,
    .form-group select,
    .form-group textarea {
        padding: 12px;
        font-size: 14px;
    }

    /* Footer */
    .footer {
        padding: 32px 16px;
    }

    .footer-brand {
        font-size: 11px;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 16px;
    }

    .footer-link {
        font-size: 9px;
    }

    .footer-copyright {
        font-size: 9px;
    }

    /* Data Page */
    .page-header {
        padding: 100px 16px 32px;
    }

    .page-title {
        font-size: 28px;
        line-height: 34px;
    }

    .page-subtitle {
        font-size: 14px;
        line-height: 22px;
    }

    .filter-section {
        padding: 0 16px 24px;
    }

    .filter-bar {
        gap: 8px;
    }

    .filter-btn {
        font-size: 11px;
        padding: 8px 12px;
    }

    .dataset-catalog {
        padding: 0 16px 40px;
    }

    .dataset-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .dataset-card {
        padding: 20px 16px;
    }

    .dataset-title {
        font-size: 16px;
    }

    .dataset-description {
        font-size: 13px;
    }

    .dataset-coverage {
        flex-direction: column;
        gap: 8px;
    }

    .cta-box {
        padding: 32px 20px;
    }

    .cta-title {
        font-size: 20px;
    }

    .cta-text {
        font-size: 14px;
    }

    /* Dataset Detail Page */
    .detail-content {
        padding: 0 16px 40px;
    }

    .content-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .detail-sidebar {
        position: static;
    }

    .dataset-title {
        font-size: 24px;
        line-height: 30px;
    }

    .dataset-keywords {
        gap: 6px;
    }

    .keyword-tag {
        font-size: 10px;
        padding: 3px 8px;
    }

    .dataset-meta {
        gap: 12px;
        margin-bottom: 24px;
        flex-wrap: wrap;
    }

    .meta-item {
        font-size: 12px;
    }

    .section-title {
        font-size: 16px;
    }

    .detail-text {
        font-size: 14px;
        line-height: 24px;
    }

    .seo-section {
        padding: 16px;
    }

    .seo-section h3 {
        font-size: 15px;
    }

    .seo-section p,
    .seo-section li {
        font-size: 13px;
    }

    .use-case-tag {
        font-size: 11px;
        padding: 4px 8px;
    }

    .format-badge {
        font-size: 11px;
        padding: 6px 10px;
    }

    .coverage-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    .coverage-card {
        padding: 12px;
    }

    .coverage-card-value {
        font-size: 20px;
    }

    .coverage-card-label {
        font-size: 9px;
    }

    .variables-list {
        grid-template-columns: 1fr;
    }

    .variable-item {
        font-size: 12px;
    }

    /* Viz Container */
    .viz-canvas {
        height: 280px;
    }

    .viz-header {
        padding: 8px 12px;
    }

    .viz-title {
        font-size: 10px;
    }

    .viz-controls {
        gap: 4px;
    }

    .viz-btn {
        width: 28px;
        height: 28px;
    }

    .viz-nav-dots {
        right: 8px;
    }

    .viz-nav-dot {
        width: 6px;
        height: 6px;
    }

    /* Access Card */
    .access-card {
        padding: 20px 16px;
    }

    .access-card-title {
        font-size: 16px;
    }

    .access-card-text {
        font-size: 13px;
    }

    .btn-access {
        font-size: 12px;
        padding: 12px 16px;
    }

    .license-box {
        padding: 16px;
    }

    .license-title {
        font-size: 11px;
    }

    .license-text {
        font-size: 12px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-label {
        font-size: 11px;
    }

    /* People Page */
    .page-header {
        padding: 100px 16px 32px;
    }

    .people-grid {
        grid-template-columns: 1fr;
        gap: 1px;
    }

    .people-card {
        padding: 24px 16px;
    }

    .people-name {
        font-size: 16px;
    }

    .people-role {
        font-size: 9px;
    }

    .people-affiliation,
    .people-focus {
        font-size: 13px;
    }

    .people-links {
        gap: 12px;
    }

    .people-link {
        font-size: 9px;
    }

    .people-context {
        font-size: 13px;
        margin-top: 16px;
    }
}

/* Extra Small Phones */
@media (max-width: 375px) {
    .hero-title {
        font-size: 28px;
        line-height: 34px;
    }

    .hero-description {
        font-size: 13px;
    }

    .network-panel {
        height: 260px;
    }

    .coverage-grid {
        grid-template-columns: 1fr;
    }

    .viz-canvas {
        height: 240px;
    }
}

/* Touch Device Optimizations */
@media (hover: none) and (pointer: coarse) {
    .btn-primary:hover,
    .btn-secondary:hover,
    .dataset-card:hover,
    .research-card:hover,
    .people-card:hover {
        transform: none;
        box-shadow: none;
    }

    .btn-primary:active,
    .btn-secondary:active {
        opacity: 0.8;
    }

    .dataset-card:active {
        border-color: var(--color-cyan);
    }
}