:root {
    --bg: #0a0a0f;
    --bg-elevated: #12121a;
    --bg-card: #16161f;
    --border: rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.15);
    --text: #f5f5f7;
    --text-muted: #9ca3af;
    --text-dim: #6b7280;
    --accent: #6366f1;
    --accent-2: #06b6d4;
    --accent-3: #a855f7;
    --gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 50%, #06b6d4 100%);
    --gradient-soft: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(168, 85, 247, 0.15) 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Background effects */
.grid-bg {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
    pointer-events: none;
    z-index: 0;
}

.glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
}

.glow-1 {
    width: 500px;
    height: 500px;
    background: var(--accent);
    top: -200px;
    left: -200px;
}

.glow-2 {
    width: 600px;
    height: 600px;
    background: var(--accent-3);
    top: 30%;
    right: -250px;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 32px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--text);
    font-family: 'Space Grotesk', sans-serif;
    font-weight: 600;
    font-size: 16px;
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--gradient);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

.logo-icon svg {
    width: 18px;
    height: 18px;
}

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

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text);
}

.nav-cta {
    padding: 9px 18px;
    background: var(--text);
    color: var(--bg);
    text-decoration: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    transition: transform 0.2s, box-shadow 0.2s;
}

.nav-cta:hover {
    transform: translateY(-1px);
    box-shadow: 0 8px 20px rgba(255, 255, 255, 0.1);
}

/* Hero */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    z-index: 1;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: var(--gradient-soft);
    border: 1px solid var(--border-strong);
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text-muted);
    margin-bottom: 32px;
    animation: fadeInUp 0.6s ease-out;
}

.badge-dot {
    width: 6px;
    height: 6px;
    background: var(--accent-2);
    border-radius: 50%;
    box-shadow: 0 0 12px var(--accent-2);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.6; transform: scale(1.2); }
}

.hero-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(40px, 7vw, 80px);
    font-weight: 700;
    line-height: 1.05;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease-out;
}

.gradient-text {
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    background-size: 200% 200%;
    animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

.hero-subtitle {
    font-size: clamp(16px, 1.6vw, 20px);
    color: var(--text-muted);
    max-width: 600px;
    margin-bottom: 40px;
    animation: fadeInUp 1s ease-out;
}

.hero-actions {
    display: flex;
    gap: 16px;
    margin-bottom: 80px;
    flex-wrap: wrap;
    animation: fadeInUp 1.2s ease-out;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s ease;
    font-family: inherit;
}

.btn svg {
    width: 16px;
    height: 16px;
    transition: transform 0.3s ease;
}

.btn-primary {
    background: var(--gradient);
    color: white;
    box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 40px rgba(99, 102, 241, 0.6);
}

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

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text);
    border: 1px solid var(--border-strong);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.25);
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
    max-width: 600px;
    animation: fadeInUp 1.4s ease-out;
}

.stat {
    border-left: 2px solid var(--border-strong);
    padding-left: 20px;
}

.stat-value {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 32px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 4px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-muted);
}

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

/* Section common */
section {
    position: relative;
    z-index: 1;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 64px;
}

.section-tag {
    display: inline-block;
    padding: 6px 14px;
    background: var(--gradient-soft);
    border: 1px solid var(--border);
    border-radius: 100px;
    font-size: 12px;
    font-weight: 600;
    color: var(--accent-2);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 20px;
}

.section-title {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(32px, 5vw, 56px);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 20px;
}

.section-subtitle {
    font-size: 18px;
    color: var(--text-muted);
    max-width: 580px;
    margin: 0 auto;
}

/* Demo section */
.demo-section {
    padding: 100px 0;
}

.viewer-wrapper {
    max-width: 1000px;
    margin: 0 auto;
}

.viewer-frame {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: 20px;
    overflow: hidden;
    box-shadow:
        0 30px 80px rgba(0, 0, 0, 0.5),
        0 0 0 1px rgba(255, 255, 255, 0.05),
        0 0 100px rgba(99, 102, 241, 0.15);
    position: relative;
}

.viewer-frame::before {
    content: '';
    position: absolute;
    inset: -1px;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.5), transparent 50%, rgba(168, 85, 247, 0.3));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.viewer-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: rgba(0, 0, 0, 0.3);
    border-bottom: 1px solid var(--border);
}

.viewer-dots {
    display: flex;
    gap: 6px;
}

.viewer-dots span {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
}

.viewer-dots span:nth-child(1) { background: #ff5f57; }
.viewer-dots span:nth-child(2) { background: #febc2e; }
.viewer-dots span:nth-child(3) { background: #28c840; }

.viewer-title {
    font-family: 'Space Grotesk', monospace;
    font-size: 13px;
    color: var(--text-muted);
}

.viewer-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    font-weight: 700;
    color: #28c840;
    letter-spacing: 0.1em;
}

.status-dot {
    width: 7px;
    height: 7px;
    background: #28c840;
    border-radius: 50%;
    box-shadow: 0 0 10px #28c840;
    animation: pulse 2s ease-in-out infinite;
}

.viewer-container {
    position: relative;
    width: 100%;
    background: #000;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    isolation: isolate;
}

.viewer-container iframe {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    border: none;
    display: block;
    z-index: 1;
}

.viewer-mask {
    position: absolute !important;
    background: #000 !important;
    z-index: 9999 !important;
    pointer-events: auto;
    display: block !important;
}

.viewer-mask-tl {
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: 60px !important;
}

.viewer-mask-bl {
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    height: 60px !important;
}

.viewer-controls {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-top: 24px;
}

.control-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    color: var(--text-muted);
    font-size: 13px;
}

.control-item svg {
    width: 18px;
    height: 18px;
    color: var(--accent-2);
    flex-shrink: 0;
}

/* Features */
.features {
    padding: 100px 0;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--accent), transparent);
    opacity: 0;
    transition: opacity 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-strong);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3);
}

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

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient-soft);
    border: 1px solid var(--border-strong);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    color: var(--accent-2);
}

.feature-icon svg {
    width: 22px;
    height: 22px;
}

.feature-card h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 10px;
    letter-spacing: -0.01em;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 14px;
    line-height: 1.6;
}

/* Process */
.process {
    padding: 100px 0;
}

.steps {
    display: flex;
    align-items: stretch;
    gap: 16px;
    max-width: 1000px;
    margin: 0 auto;
    flex-wrap: wrap;
    justify-content: center;
}

.step {
    flex: 1;
    min-width: 250px;
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    position: relative;
}

.step-number {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 48px;
    font-weight: 700;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
    margin-bottom: 20px;
}

.step-content h3 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 22px;
    font-weight: 600;
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-muted);
    font-size: 14px;
}

.step-divider {
    width: 30px;
    align-self: center;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent-3));
    border-radius: 2px;
    opacity: 0.5;
}

/* CTA */
.cta {
    padding: 100px 0;
}

.cta-card {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.1));
    border: 1px solid var(--border-strong);
    border-radius: 24px;
    padding: 64px 48px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent);
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    top: -100px;
    right: -100px;
}

.cta-card::after {
    content: '';
    position: absolute;
    width: 300px;
    height: 300px;
    background: var(--accent-3);
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.3;
    bottom: -100px;
    left: -100px;
}

.cta-card h2 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
    position: relative;
}

.cta-card p {
    color: var(--text-muted);
    font-size: 17px;
    margin-bottom: 32px;
    position: relative;
}

.cta-actions {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 20px;
    position: relative;
    flex-wrap: wrap;
}

.cta-note {
    font-size: 13px;
    color: var(--text-dim);
    position: relative;
}

/* Footer */
.footer {
    padding: 80px 0 32px;
    border-top: 1px solid var(--border);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 14px;
    margin-top: 16px;
    max-width: 280px;
}

.footer-cols {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.footer-col h4 {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 14px;
    padding: 4px 0;
    transition: color 0.2s;
}

.footer-col a:hover {
    color: var(--text);
}

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-dim);
    font-size: 13px;
    flex-wrap: wrap;
    gap: 12px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }

    .hero {
        padding: 100px 0 60px;
    }

    .hero-stats {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .viewer-controls {
        grid-template-columns: 1fr;
    }

    .step-divider {
        display: none;
    }

    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .footer-cols {
        grid-template-columns: repeat(2, 1fr);
    }

    .cta-card {
        padding: 48px 24px;
    }
}