/* ==================== CSS Variables & Base ==================== */
:root {
    --navy-950: #0a0e1a;
    --navy-900: #0d1224;
    --navy-800: #131a2e;
    --navy-700: #1a2342;
    --navy-600: #243156;
    --silver-100: #f1f5f9;
    --silver-200: #e2e8f0;
    --silver-300: #cbd5e1;
    --silver-400: #94a3b8;
    --titanium: #8899a6;
    --accent-blue: #60a5fa;
    --accent-cyan: #22d3ee;
    --accent-purple: #a78bfa;
    --accent-pink: #f472b6;
    --gradient-primary: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    --gradient-glow: linear-gradient(135deg, rgba(96, 165, 250, 0.5), rgba(167, 139, 250, 0.5));
    --glass-bg: rgba(13, 18, 36, 0.7);
    --glass-border: rgba(148, 163, 184, 0.1);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    --transition-fast: 0.15s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
    font-family: var(--font-sans);
    background: var(--navy-950);
    color: var(--silver-200);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* ==================== Animated Background ==================== */
.background-container {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    overflow: hidden;
    background: radial-gradient(ellipse at 50% 0%, var(--navy-800) 0%, var(--navy-950) 70%);
}

.silicon-grid {
    position: absolute;
    inset: 0;
    background-image: 
        linear-gradient(rgba(96, 165, 250, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(96, 165, 250, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    animation: gridPulse 8s ease-in-out infinite;
}

@keyframes gridPulse {
    0%, 100% { opacity: 0.3; }
    50% { opacity: 0.6; }
}

.light-beam {
    position: absolute;
    width: 2px;
    background: linear-gradient(to bottom, transparent, var(--accent-cyan), var(--accent-blue), transparent);
    opacity: 0;
    animation: beamTravel 4s ease-in-out infinite;
}

.light-beam-1 { left: 20%; height: 300px; animation-delay: 0s; }
.light-beam-2 { left: 50%; height: 400px; animation-delay: 1.5s; }
.light-beam-3 { left: 75%; height: 250px; animation-delay: 3s; }

@keyframes beamTravel {
    0% { top: -400px; opacity: 0; }
    20% { opacity: 1; }
    80% { opacity: 1; }
    100% { top: 100vh; opacity: 0; }
}

.particle-field { position: absolute; inset: 0; }

/* ==================== Glass Card ==================== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
    transition: all var(--transition-base);
}

.glass-card:hover {
    border-color: rgba(96, 165, 250, 0.3);
    box-shadow: 0 12px 48px rgba(96, 165, 250, 0.15);
    transform: translateY(-4px);
}

/* ==================== Navigation ==================== */
.nav-glass {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 1000;
    padding: 16px 0;
    background: rgba(10, 14, 26, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--glass-border);
    transition: all var(--transition-base);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--silver-100);
}

.logo-icon { width: 40px; height: 40px; }
.logo-text { font-size: 1.25rem; font-weight: 700; letter-spacing: -0.02em; }

.nav-links { display: flex; align-items: center; gap: 32px; }

.nav-link {
    color: var(--silver-400);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-link:hover { color: var(--silver-100); }

.nav-cta {
    background: var(--gradient-primary);
    color: white !important;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
}

.nav-cta:hover { opacity: 0.9; transform: translateY(-1px); }

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--silver-300);
    border-radius: 2px;
    transition: var(--transition-fast);
}

/* ==================== Hero Section ==================== */
.hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    padding: 120px 24px 80px;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content { max-width: 640px; }

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 100px;
    font-size: 0.85rem;
    color: var(--accent-blue);
    margin-bottom: 24px;
}

.badge-icon { font-size: 0.7rem; }

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.title-line { display: block; color: var(--silver-100); }

.gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--silver-400);
    margin-bottom: 36px;
    max-width: 540px;
}

.hero-subtitle strong { color: var(--silver-200); }

.hero-ctas { display: flex; gap: 16px; margin-bottom: 48px; flex-wrap: wrap; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    transition: all var(--transition-base);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    box-shadow: 0 4px 20px rgba(96, 165, 250, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(96, 165, 250, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--silver-200);
    border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(96, 165, 250, 0.3);
}

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

.hero-stats {
    display: flex;
    gap: 32px;
    flex-wrap: wrap;
    padding-top: 32px;
    border-top: 1px solid var(--glass-border);
}

.stat-item { text-align: left; }
.stat-value { display: block; font-size: 1.5rem; font-weight: 700; color: var(--silver-100); margin-bottom: 4px; }
.stat-label { font-size: 0.85rem; color: var(--silver-400); }
.stat-divider { width: 1px; background: var(--glass-border); }

/* ==================== 3D Chip Visual ==================== */
.hero-visual { display: flex; justify-content: center; align-items: center; }

.chip-3d-container {
    position: relative;
    width: 320px;
    height: 320px;
    perspective: 1000px;
}

.chip-3d {
    position: absolute;
    width: 200px;
    height: 200px;
    left: 50%;
    top: 50%;
    transform-style: preserve-3d;
    animation: chipRotate 20s linear infinite;
    transform: translate(-50%, -50%) rotateX(-20deg) rotateY(0deg);
}

@keyframes chipRotate {
    from { transform: translate(-50%, -50%) rotateX(-20deg) rotateY(0deg); }
    to { transform: translate(-50%, -50%) rotateX(-20deg) rotateY(360deg); }
}

.chip-face {
    position: absolute;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--navy-700), var(--navy-800));
    border: 1px solid rgba(96, 165, 250, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chip-top { transform: rotateX(90deg) translateZ(100px); background: linear-gradient(135deg, var(--navy-600), var(--navy-700)); }
.chip-front { transform: translateZ(100px); }
.chip-right { transform: rotateY(90deg) translateZ(100px); }

.chip-core {
    position: absolute;
    width: 60px;
    height: 60px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%) translateZ(50px);
    background: var(--gradient-primary);
    border-radius: 8px;
    box-shadow: 0 0 40px var(--accent-blue);
    animation: corePulse 2s ease-in-out infinite;
}

@keyframes corePulse {
    0%, 100% { box-shadow: 0 0 40px var(--accent-blue); }
    50% { box-shadow: 0 0 80px var(--accent-cyan), 0 0 120px var(--accent-blue); }
}

.chip-glow {
    position: absolute;
    width: 300px;
    height: 300px;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(96, 165, 250, 0.2) 0%, transparent 70%);
    animation: glowPulse 3s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.5; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.2); }
}

.data-streams { position: absolute; inset: 0; }

.stream {
    position: absolute;
    width: 3px;
    height: 50px;
    background: linear-gradient(to bottom, transparent, var(--accent-cyan), transparent);
    border-radius: 3px;
    animation: streamFlow 2s ease-in-out infinite;
}

.stream-1 { left: 30%; top: 0; animation-delay: 0s; }
.stream-2 { right: 20%; top: 20%; animation-delay: 0.5s; }
.stream-3 { left: 50%; bottom: 10%; animation-delay: 1s; }

@keyframes streamFlow {
    0%, 100% { opacity: 0; transform: translateY(-20px); }
    50% { opacity: 1; transform: translateY(20px); }
}

/* ==================== Section Styling ==================== */
section { padding: 100px 0; position: relative; }

.section-header { text-align: center; max-width: 720px; margin: 0 auto 64px; }

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--silver-100);
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}

.section-desc { font-size: 1.1rem; color: var(--silver-400); }

/* ==================== Problem Section ==================== */
.problem-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.problem-card {
    padding: 32px 24px;
    text-align: center;
}

.problem-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(239, 68, 68, 0.1);
}

.problem-icon.threat svg { width: 28px; height: 28px; stroke: #ef4444; }

.problem-card h3 { font-size: 1.1rem; font-weight: 700; color: var(--silver-100); margin-bottom: 12px; }
.problem-card p { font-size: 0.95rem; color: var(--silver-400); }

.solution-card.highlight {
    background: linear-gradient(135deg, rgba(96, 165, 250, 0.15), rgba(167, 139, 250, 0.1));
    border-color: rgba(96, 165, 250, 0.3);
}

.solution-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: rgba(96, 165, 250, 0.2);
}

.solution-icon svg { width: 28px; height: 28px; stroke: var(--accent-blue); }

/* ==================== Deepfake Section ==================== */
.deepfake-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.tee-diagram {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 40px;
    background: var(--glass-bg);
    border-radius: 20px;
    border: 1px solid var(--glass-border);
}

.tee-layer {
    width: 100%;
    max-width: 280px;
    padding: 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    transition: all var(--transition-base);
}

.tee-layer:hover { transform: scale(1.02); border-color: var(--accent-blue); }

.layer-label { font-size: 0.9rem; font-weight: 600; color: var(--silver-200); }
.layer-icon { font-size: 1.5rem; }

.tee-hardware { border-color: rgba(34, 211, 238, 0.3); }
.tee-enclave { border-color: rgba(167, 139, 250, 0.3); }
.tee-pqarx { border-color: rgba(96, 165, 250, 0.3); }
.tee-verified { border-color: rgba(34, 197, 94, 0.3); background: rgba(34, 197, 94, 0.1); }

.verified-icon { color: #22c55e; font-weight: 700; }

.tee-arrow {
    position: relative;
    height: 24px;
    width: 2px;
    background: var(--glass-border);
}

.arrow-pulse {
    position: absolute;
    width: 8px;
    height: 8px;
    background: var(--accent-cyan);
    border-radius: 50%;
    left: 50%;
    transform: translateX(-50%);
    animation: arrowPulse 1.5s ease-in-out infinite;
}

@keyframes arrowPulse {
    0% { top: 0; opacity: 0; }
    50% { opacity: 1; }
    100% { top: 100%; opacity: 0; }
}

.info-card {
    padding: 32px;
    margin-bottom: 24px;
}

.info-card h3 { font-size: 1.3rem; font-weight: 700; color: var(--silver-100); margin-bottom: 16px; }
.info-card p { color: var(--silver-400); margin-bottom: 24px; }

.feature-list { list-style: none; display: flex; flex-direction: column; gap: 12px; }

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 0.95rem;
    color: var(--silver-300);
}

.check-icon { color: #22c55e; font-weight: 700; }

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

.use-case {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    font-size: 0.9rem;
    color: var(--silver-300);
    transition: all var(--transition-base);
}

.use-case:hover { border-color: var(--accent-blue); transform: translateY(-2px); }
.use-icon { font-size: 1.2rem; }

/* ==================== Protocol Section ==================== */
.protocol-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }

.protocol-desc { font-size: 1.2rem; color: var(--silver-400); margin-bottom: 40px; }
.protocol-desc strong { color: var(--accent-cyan); }

.protocol-features { display: flex; flex-direction: column; gap: 24px; }

.protocol-feature {
    display: flex;
    gap: 20px;
    padding: 24px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    transition: all var(--transition-base);
}

.protocol-feature:hover { border-color: var(--accent-blue); transform: translateX(8px); }

.feature-icon { font-size: 2rem; flex-shrink: 0; }
.feature-content h4 { font-size: 1.1rem; font-weight: 700; color: var(--silver-100); margin-bottom: 8px; }
.feature-content p { font-size: 0.95rem; color: var(--silver-400); }

.protocol-diagram { padding: 32px; }

.diagram-header { text-align: center; margin-bottom: 32px; }
.diagram-title { font-size: 1.2rem; font-weight: 700; color: var(--silver-100); }
.diagram-subtitle { display: block; font-size: 0.9rem; color: var(--accent-blue); margin-top: 4px; font-family: var(--font-mono); }

.mermaid-style-diagram { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }

.diagram-node {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 16px 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    transition: all var(--transition-base);
}

.diagram-node:hover { transform: scale(1.05); border-color: var(--accent-blue); }

.node-sensor { border-color: rgba(34, 211, 238, 0.3); }
.node-tee { border-color: rgba(167, 139, 250, 0.3); }
.node-pqarx { border-color: rgba(96, 165, 250, 0.3); }
.node-verified { border-color: rgba(34, 197, 94, 0.3); background: rgba(34, 197, 94, 0.1); }

.node-icon { font-size: 1.5rem; }
.node-label { font-size: 0.8rem; font-weight: 600; color: var(--silver-300); }

.diagram-connector { display: flex; flex-direction: column; align-items: center; }
.connector-line { width: 24px; height: 2px; background: var(--glass-border); }
.connector-label { font-size: 0.7rem; color: var(--silver-400); margin-top: 4px; }

.diagram-footer { display: flex; justify-content: center; gap: 16px; margin-top: 32px; flex-wrap: wrap; }

.security-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(96, 165, 250, 0.1);
    border: 1px solid rgba(96, 165, 250, 0.2);
    border-radius: 100px;
    font-size: 0.8rem;
    color: var(--accent-blue);
}

/* ==================== Verticals Section ==================== */
.verticals-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.vertical-card { padding: 32px; display: flex; gap: 24px; }

.vertical-icon { font-size: 2.5rem; flex-shrink: 0; }

.vertical-tag {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(96, 165, 250, 0.1);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-blue);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
}

.vertical-content h3 { font-size: 1.3rem; font-weight: 700; color: var(--silver-100); margin-bottom: 12px; }
.vertical-content > p { font-size: 0.95rem; color: var(--silver-400); margin-bottom: 20px; }

.vertical-features { list-style: none; display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.vertical-features li {
    font-size: 0.9rem;
    color: var(--silver-300);
    padding-left: 20px;
    position: relative;
}
.vertical-features li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--accent-blue);
}

.vertical-metrics { display: flex; gap: 24px; }

.metric { text-align: left; }
.metric-value { display: block; font-size: 1.3rem; font-weight: 700; color: var(--accent-cyan); }
.metric-label { font-size: 0.8rem; color: var(--silver-400); }

/* ==================== CTA Section ==================== */
.cta-section { padding: 120px 0; }

.cta-content { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; padding: 60px; }

.cta-title { font-size: 2.5rem; font-weight: 800; color: var(--silver-100); margin-bottom: 16px; }
.cta-desc { font-size: 1.1rem; color: var(--silver-400); margin-bottom: 32px; }

.cta-features { display: flex; flex-direction: column; gap: 12px; }

.cta-feature { display: flex; align-items: center; gap: 12px; font-size: 1rem; color: var(--silver-300); }

.cta-form { display: flex; flex-direction: column; gap: 20px; }

.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label { font-size: 0.9rem; font-weight: 500; color: var(--silver-300); }

.form-group input,
.form-group select {
    padding: 14px 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    color: var(--silver-100);
    font-size: 1rem;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(96, 165, 250, 0.1);
}

.form-group input::placeholder { color: var(--silver-400); }

.form-group select option { background: var(--navy-900); color: var(--silver-200); }

/* ==================== Footer ==================== */
.footer { padding: 80px 0 40px; border-top: 1px solid var(--glass-border); }

.footer-content { display: grid; grid-template-columns: 1fr 2fr; gap: 60px; margin-bottom: 60px; }

.footer-brand .nav-logo { margin-bottom: 16px; }
.footer-tagline { font-size: 0.95rem; color: var(--silver-400); margin-bottom: 20px; }

.powered-by { display: flex; align-items: center; gap: 8px; font-size: 0.85rem; color: var(--silver-400); }

.pqarx-badge {
    padding: 4px 12px;
    background: var(--gradient-primary);
    border-radius: 100px;
    font-weight: 600;
    color: white;
    font-size: 0.8rem;
}

.footer-links { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }

.footer-column h4 { font-size: 0.9rem; font-weight: 700; color: var(--silver-100); margin-bottom: 20px; text-transform: uppercase; letter-spacing: 0.05em; }

.footer-column a { display: block; font-size: 0.9rem; color: var(--silver-400); text-decoration: none; margin-bottom: 12px; transition: color var(--transition-fast); }
.footer-column a:hover { color: var(--silver-100); }

.footer-bottom { display: flex; justify-content: space-between; align-items: center; padding-top: 40px; border-top: 1px solid var(--glass-border); flex-wrap: wrap; gap: 20px; }

.footer-bottom p { font-size: 0.9rem; color: var(--silver-400); }

.footer-legal { display: flex; gap: 24px; }
.footer-legal a { font-size: 0.9rem; color: var(--silver-400); text-decoration: none; transition: color var(--transition-fast); }
.footer-legal a:hover { color: var(--silver-100); }

/* ==================== Responsive ==================== */
@media (max-width: 1024px) {
    .hero { grid-template-columns: 1fr; text-align: center; padding-top: 100px; }
    .hero-content { max-width: 100%; }
    .hero-subtitle { margin: 0 auto 36px; }
    .hero-ctas { justify-content: center; }
    .hero-stats { justify-content: center; }
    .hero-visual { order: -1; margin-bottom: 40px; }
    
    .problem-grid { grid-template-columns: repeat(2, 1fr); }
    .deepfake-content { grid-template-columns: 1fr; }
    .protocol-content { grid-template-columns: 1fr; }
    .verticals-grid { grid-template-columns: 1fr; }
    .cta-content { grid-template-columns: 1fr; padding: 40px; }
    .footer-content { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .mobile-menu-btn { display: flex; }
    
    .hero { padding: 100px 20px 60px; }
    .hero-title { font-size: 2rem; }
    .hero-stats { flex-direction: column; gap: 20px; }
    .stat-divider { display: none; }
    
    .problem-grid { grid-template-columns: 1fr; }
    .use-cases { grid-template-columns: 1fr; }
    .mermaid-style-diagram { flex-direction: column; }
    .diagram-connector { transform: rotate(90deg); margin: 8px 0; }
    
    .vertical-card { flex-direction: column; }
    .vertical-metrics { flex-wrap: wrap; }
    
    .footer-links { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}