/* ============================================
   Mass Effect-Inspired Portfolio Styles
   ============================================ */

/* CSS Custom Properties - Design System */
:root {
    /* Color Palette */
    --deep-space: #0a0e1a;
    --space-dark: #0f141f;
    --space-surface: #16202e;
    --hologram-cyan: #00d4ff;
    --hologram-blue: #4a90e2;
    --signal-amber: #ff9500;
    --text-white: #eaf4ff;
    --text-dim: #b5c8d8;
    --text-muted: #5c748a;
    --text-faint: #3a4a5a;
    --border-glow: rgba(0, 212, 255, 0.25);
    --border-dim: rgba(92, 116, 138, 0.2);

    /* Gradients */
    --holo-gradient: linear-gradient(135deg, rgba(0, 212, 255, 0.08), rgba(74, 144, 226, 0.04));
    --card-gradient: linear-gradient(165deg, rgba(22, 32, 46, 0.95), rgba(15, 20, 31, 0.92));
    --featured-gradient: linear-gradient(160deg, rgba(0, 212, 255, 0.12), rgba(22, 32, 46, 0.95));

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;
    --space-2xl: 48px;

    /* Border Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    /* Typography */
    --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;
    --font-heading: "Exo 2", "Segoe UI", system-ui, sans-serif;
    --font-mono: "JetBrains Mono", "SFMono-Regular", monospace;

    /* Transitions */
    --transition-fast: 0.15s ease;
    --transition-base: 0.25s ease;
    --transition-slow: 0.4s ease;
}

/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    padding: 0;
    background-color: var(--deep-space);
    color: var(--text-white);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color var(--transition-fast);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
}

ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

h1, h2, h3, h4, h5, h6 {
    margin: 0;
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-white);
}

p {
    margin: 0;
    color: var(--text-dim);
}

/* ============================================
   Starfield Background
   ============================================ */

#starfield {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: -1;
    pointer-events: none;
}

/* ============================================
   Galaxy Navigation
   ============================================ */

.galaxy-nav {
    position: fixed;
    left: var(--space-lg);
    top: 50%;
    transform: translateY(-50%);
    z-index: 100;
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    align-items: center;
}

.nav-constellation {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    position: relative;
}

/* Constellation line connector */
.nav-constellation::before {
    content: "";
    position: absolute;
    left: 18px;
    top: 24px;
    bottom: 24px;
    width: 2px;
    background: linear-gradient(180deg,
        transparent 0%,
        var(--border-dim) 10%,
        var(--border-glow) 50%,
        var(--border-dim) 90%,
        transparent 100%
    );
    opacity: 0.5;
}

.nav-cluster {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
    color: var(--text-muted);
    transition: all var(--transition-base);
}

.cluster-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(15, 20, 31, 0.8);
    border: 1px solid var(--border-dim);
    color: var(--text-muted);
    transition: all var(--transition-base);
    z-index: 1;
}

.nav-cluster:hover .cluster-icon {
    border-color: var(--hologram-cyan);
    color: var(--hologram-cyan);
    box-shadow: 0 0 20px rgba(0, 212, 255, 0.3);
}

.nav-cluster.active .cluster-icon {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--hologram-cyan);
    color: var(--hologram-cyan);
    box-shadow: 0 0 24px rgba(0, 212, 255, 0.4);
}

.cluster-label {
    font-family: var(--font-mono);
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    opacity: 0;
    transform: translateX(-8px);
    transition: all var(--transition-base);
}

.nav-cluster:hover .cluster-label,
.nav-cluster.active .cluster-label {
    opacity: 1;
    transform: translateX(0);
}

.nav-cluster.active .cluster-label {
    color: var(--hologram-cyan);
}

/* Audio Toggle */
.audio-toggle {
    position: absolute;
    bottom: -80px;
    left: 50%;
    transform: translateX(-50%);
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: rgba(15, 20, 31, 0.8);
    border: 1px solid var(--border-dim);
    color: var(--text-muted);
    transition: all var(--transition-base);
}

.audio-toggle:hover {
    border-color: var(--hologram-cyan);
    color: var(--hologram-cyan);
}

.audio-toggle[aria-pressed="true"] {
    background: rgba(0, 212, 255, 0.15);
    border-color: var(--hologram-cyan);
    color: var(--hologram-cyan);
}

.audio-icon {
    width: 20px;
    height: 20px;
}

/* ============================================
   Cluster Transition Indicator
   ============================================ */

.cluster-transition {
    position: fixed;
    top: var(--space-lg);
    left: 50%;
    transform: translateX(-50%) translateY(-100px);
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-sm) var(--space-lg);
    background: rgba(15, 20, 31, 0.9);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--hologram-cyan);
    opacity: 0;
    transition: all var(--transition-base);
    z-index: 50;
    backdrop-filter: blur(8px);
}

.cluster-transition.visible {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

.transition-arrow {
    color: var(--text-muted);
}

.transition-from,
.transition-to {
    transition: all var(--transition-base);
}

/* ============================================
   Layout & Containers
   ============================================ */

.container {
    width: min(1200px, calc(100% - 120px));
    margin: 0 auto;
}

.section {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: var(--space-2xl) 0;
    position: relative;
}

/* ============================================
   Typography Components
   ============================================ */

.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--hologram-cyan);
    margin-bottom: var(--space-sm);
}

.section-header {
    margin-bottom: var(--space-2xl);
}

.section-header h2 {
    font-size: clamp(1.75rem, 4vw, 2.75rem);
    max-width: 22ch;
}

/* ============================================
   Buttons
   ============================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: 12px 24px;
    font-family: var(--font-heading);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, transparent, rgba(255, 255, 255, 0.05));
    opacity: 0;
    transition: opacity var(--transition-base);
}

.btn:hover {
    transform: translateY(-2px);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--hologram-cyan), var(--hologram-blue));
    color: var(--deep-space);
    box-shadow: 0 4px 20px rgba(0, 212, 255, 0.25);
}

.btn-primary:hover {
    box-shadow: 0 6px 28px rgba(0, 212, 255, 0.35);
}

.btn-secondary {
    background: rgba(22, 32, 46, 0.9);
    color: var(--text-white);
    border: 1px solid var(--border-dim);
}

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

.btn-arrow {
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.btn:hover .btn-arrow {
    transform: translateX(4px);
}

/* ============================================
   Links
   ============================================ */

.btn-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    color: var(--hologram-cyan);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 0.9rem;
    transition: all var(--transition-base);
}

.btn-link svg {
    width: 18px;
    height: 18px;
    transition: transform var(--transition-base);
}

.btn-link:hover {
    color: var(--text-white);
    gap: var(--space-md);
}

.btn-link:hover svg {
    transform: translate(4px, 0);
}

.secondary-link {
    margin-top: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Hero Section
   ============================================ */

.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
}

.hero-content {
    max-width: 800px;
}

.hero-title {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
    margin: var(--space-lg) 0;
}

.title-line {
    font-size: clamp(2.5rem, 6vw, 4.5rem);
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--text-white), var(--hologram-cyan));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.title-tagline {
    font-size: clamp(1.25rem, 2.5vw, 1.75rem);
    font-weight: 500;
    color: var(--text-dim);
    -webkit-text-fill-color: var(--text-dim);
}

.hero-description {
    font-size: clamp(1rem, 1.5vw, 1.15rem);
    max-width: 60ch;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-xl);
}

.hero-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
    margin-top: var(--space-lg);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
}

.hero-links a {
    transition: color var(--transition-base);
}

.hero-links a:hover {
    color: var(--hologram-cyan);
}

.link-divider {
    color: var(--text-faint);
}

/* Holographic Stats */
.holo-stats {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-lg);
    margin-top: var(--space-2xl);
    padding-top: var(--space-2xl);
    border-top: 1px solid var(--border-dim);
}

.stat-holo {
    text-align: center;
    padding: var(--space-lg);
    background: var(--holo-gradient);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-md);
    position: relative;
    overflow: hidden;
}

.stat-holo::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--hologram-cyan), transparent);
    animation: holo-scan 3s ease-in-out infinite;
}

@keyframes holo-scan {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 1; }
}

.stat-value {
    display: block;
    font-family: var(--font-heading);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--hologram-cyan);
    margin-bottom: var(--space-xs);
}

.stat-label {
    display: block;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Systems Section
   ============================================ */

.systems {
    background: linear-gradient(180deg, rgba(10, 14, 26, 0.5), transparent 30%, transparent 70%, rgba(10, 14, 26, 0.5));
}

.systems-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
}

.system-card {
    background: var(--card-gradient);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    position: relative;
    transition: all var(--transition-base);
}

.system-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--border-glow), transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.system-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 212, 255, 0.1);
}

.system-card:hover::before {
    opacity: 1;
}

.system-card.featured {
    grid-row: span 2;
    background: var(--featured-gradient);
    border-color: var(--border-glow);
}

.card-header {
    margin-bottom: var(--space-md);
}

.card-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(255, 149, 0, 0.15);
    border: 1px solid rgba(255, 149, 0, 0.4);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--signal-amber);
    margin-bottom: var(--space-sm);
}

.card-company {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--hologram-cyan);
    margin-bottom: var(--space-sm);
}

.system-card h3 {
    font-size: 1.5rem;
    color: var(--text-white);
}

.card-description {
    font-size: 1rem;
    line-height: 1.7;
    margin-bottom: var(--space-md);
}

.card-features {
    display: grid;
    gap: var(--space-sm);
    margin-bottom: var(--space-lg);
}

.card-features li {
    position: relative;
    padding-left: var(--space-lg);
    color: var(--text-dim);
    font-size: 0.95rem;
}

.card-features li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.6em;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--hologram-cyan);
    box-shadow: 0 0 8px var(--hologram-cyan);
}

.card-impact {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.card-actions {
    display: flex;
    gap: var(--space-md);
}

/* ============================================
   Research Section
   ============================================ */

.research-layout {
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: var(--space-2xl);
}

.pub-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-md);
}

.pub-card {
    background: var(--card-gradient);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    padding: var(--space-lg);
    position: relative;
    transition: all var(--transition-base);
}

.pub-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: var(--space-md);
    bottom: var(--space-md);
    width: 3px;
    background: var(--hologram-cyan);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.pub-card:hover {
    border-color: var(--border-glow);
    transform: translateX(4px);
}

.pub-card:hover::before {
    opacity: 1;
}

.pub-header {
    margin-bottom: var(--space-sm);
}

.pub-venue {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(0, 212, 255, 0.1);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-sm);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--hologram-cyan);
}

.pub-card h3 {
    font-size: 1.15rem;
    margin-bottom: var(--space-sm);
    line-height: 1.4;
}

.pub-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    color: var(--hologram-cyan);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: all var(--transition-base);
}

.pub-link:hover {
    color: var(--text-white);
    gap: var(--space-sm);
}

.pub-link svg {
    width: 16px;
    height: 16px;
}

/* Tech Stack */
.tech-stack {
    background: var(--card-gradient);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    position: relative;
    height: fit-content;
}

.tech-stack::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--hologram-cyan), var(--hologram-blue), transparent);
}

.tech-stack h3 {
    font-size: 1.3rem;
    margin-bottom: var(--space-lg);
}

.tech-list {
    display: grid;
    gap: var(--space-sm);
}

.tech-list li {
    position: relative;
    padding-left: var(--space-lg);
    color: var(--text-dim);
    font-size: 0.95rem;
}

.tech-list li::before {
    content: "○";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--hologram-cyan);
    font-size: 0.8rem;
}

/* ============================================
   Lab Section
   ============================================ */

.lab {
    background: linear-gradient(180deg, rgba(10, 14, 26, 0.5), transparent 30%, transparent 70%, rgba(10, 14, 26, 0.5));
}

.lab-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-lg);
}

.lab-card {
    background: var(--card-gradient);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-lg);
    padding: var(--space-xl);
    display: flex;
    flex-direction: column;
    transition: all var(--transition-base);
}

.lab-card:hover {
    border-color: var(--border-glow);
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 212, 255, 0.15);
}

.lab-preview {
    width: 100%;
    aspect-ratio: 16/9;
    background: var(--holo-gradient);
    border: 1px solid var(--border-dim);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--space-lg);
    position: relative;
    overflow: hidden;
}

.lab-preview svg {
    width: 48px;
    height: 48px;
    color: var(--hologram-cyan);
    opacity: 0.6;
}

.lab-card:hover .lab-preview svg {
    opacity: 1;
    transform: scale(1.1);
    transition: all var(--transition-base);
}

.lab-content h3 {
    font-size: 1.2rem;
    margin-bottom: var(--space-sm);
}

.lab-content p {
    font-size: 0.95rem;
    margin-bottom: var(--space-lg);
    flex-grow: 1;
}

/* ============================================
   Contact Section
   ============================================ */

.contact {
    min-height: auto;
    padding: var(--space-2xl) 0;
}

.contact-wrapper {
    background: var(--card-gradient);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-lg);
    padding: var(--space-2xl);
    position: relative;
    overflow: hidden;
}

.contact-wrapper::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--hologram-cyan), var(--hologram-blue), var(--hologram-cyan));
}

.contact-connection {
    margin-bottom: var(--space-xl);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-lg);
    background: rgba(0, 212, 255, 0.05);
    border: 1px solid var(--border-glow);
    border-radius: var(--radius-md);
    width: fit-content;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--hologram-cyan);
    box-shadow: 0 0 12px var(--hologram-cyan);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; box-shadow: 0 0 12px var(--hologram-cyan); }
    50% { opacity: 0.7; box-shadow: 0 0 20px var(--hologram-cyan); }
}

.status-text {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--hologram-cyan);
}

.contact-card {
    display: flex;
    flex-direction: column;
    gap: var(--space-xl);
}

.contact-content h2 {
    font-size: clamp(1.5rem, 3vw, 2.2rem);
    margin-bottom: var(--space-md);
}

.contact-content p {
    max-width: 55ch;
    line-height: 1.7;
}

.contact-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.contact-links {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-lg);
    padding-top: var(--space-lg);
    border-top: 1px solid var(--border-dim);
}

.contact-links a {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    transition: color var(--transition-base);
}

.contact-links a:hover {
    color: var(--hologram-cyan);
}

/* ============================================
   Footer
   ============================================ */

.footer {
    padding: var(--space-xl) 0;
    border-top: 1px solid var(--border-dim);
    background: rgba(10, 14, 26, 0.5);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--space-lg);
}

.footer-copyright {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
}

.footer-status {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--hologram-cyan);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ============================================
   Reveal Animations
   ============================================ */

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
    transition-delay: var(--reveal-delay, 0ms);
}

.reveal.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Responsive Design
   ============================================ */

@media (max-width: 1080px) {
    .container {
        width: min(1200px, calc(100% - var(--space-2xl)));
    }

    .holo-stats {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

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

    .system-card.featured {
        grid-row: auto;
    }

    .research-layout {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 768px) {
    .galaxy-nav {
        left: var(--space-md);
        top: auto;
        bottom: var(--space-md);
        transform: none;
        flex-direction: row;
    }

    .nav-constellation {
        flex-direction: row;
    }

    .nav-constellation::before {
        left: 24px;
        top: 18px;
        bottom: auto;
        right: 24px;
        width: auto;
        height: 2px;
        background: linear-gradient(90deg,
            transparent 0%,
            var(--border-dim) 10%,
            var(--border-glow) 50%,
            var(--border-dim) 90%,
            transparent 100%
        );
    }

    .cluster-label {
        display: none;
    }

    .audio-toggle {
        bottom: auto;
        top: -50px;
    }

    .container {
        width: min(1200px, calc(100% - var(--space-lg)));
    }

    .section {
        padding: var(--space-xl) 0;
    }

    .hero-cta {
        flex-direction: column;
    }

    .btn {
        width: 100%;
        justify-content: center;
    }

    .contact-card {
        gap: var(--space-lg);
    }

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

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

@media (max-width: 480px) {
    .cluster-icon {
        width: 36px;
        height: 36px;
    }
}

/* ============================================
   Accessibility & Reduced Motion
   ============================================ */

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal {
        opacity: 1;
        transform: none;
    }
}

/* Focus Styles for Accessibility */
a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--hologram-cyan);
    outline-offset: 4px;
}

.nav-cluster:focus-visible .cluster-icon,
.audio-toggle:focus-visible {
    outline-offset: 2px;
}