:root {
    --color-bg: #050505;
    --color-bg-elevated: #0a0a0a;
    --color-bg-card: #0d0d0d;
    --color-border: #1a1a1a;
    --color-border-subtle: #141414;
    
    --color-text: #e5e5e5;
    --color-text-secondary: #888888;
    --color-text-muted: #555555;
    
    --color-primary: #00ff9d;
    --color-primary-dim: #00cc7d;
    --color-primary-glow: rgba(0, 255, 157, 0.15);
    --color-primary-glow-strong: rgba(0, 255, 157, 0.25);
    
    --color-accent: #00d4aa;
    --color-accent-cyan: #00ffff;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', monospace;
    
    --container-max: 1200px;
    --container-padding: 24px;
    
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
    
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

* {
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

.matrix-bg {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, var(--color-primary-glow), transparent),
        radial-gradient(ellipse 60% 40% at 100% 0%, rgba(0, 212, 170, 0.08), transparent),
        radial-gradient(ellipse 50% 30% at 0% 100%, rgba(0, 255, 255, 0.05), transparent);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
}

a {
    color: inherit;
    text-decoration: none;
}

ul {
    list-style: none;
}

code {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background: var(--color-bg-elevated);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    color: var(--color-primary);
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 16px 0;
    background: rgba(5, 5, 5, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border-subtle);
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.25rem;
}

.logo-icon {
    color: var(--color-primary);
    font-size: 1.5rem;
    text-shadow: 0 0 20px var(--color-primary-glow-strong);
}

.logo-text {
    letter-spacing: -0.02em;
}

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

.nav-links a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.nav-link-external {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 0.95rem;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: none;
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
}

.btn-primary {
    background: var(--color-primary);
    color: var(--color-bg);
    box-shadow: 0 0 20px var(--color-primary-glow-strong);
}

.btn-primary:hover {
    background: var(--color-primary-dim);
    box-shadow: 0 0 30px var(--color-primary-glow-strong);
    transform: translateY(-1px);
}

.btn-secondary {
    background: transparent;
    color: var(--color-text);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-text-secondary);
    background: var(--color-bg-elevated);
}

.btn-large {
    padding: 16px 32px;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    padding: 160px 0 100px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--color-primary);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.hero-title {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent-cyan) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    max-width: 600px;
    margin: 0 auto 40px;
    font-size: 1.125rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 64px;
    flex-wrap: wrap;
}

.hero-stats {
    display: inline-flex;
    align-items: center;
    gap: 32px;
    padding: 24px 40px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.stat {
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 2rem;
    font-weight: 600;
    color: var(--color-primary);
    font-family: var(--font-mono);
    text-shadow: 0 0 20px var(--color-primary-glow);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: var(--color-border);
}

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

.section-tag {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    opacity: 0.8;
}

.section-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* Features */
.features {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, var(--color-bg-elevated) 50%, transparent 100%);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
}

.feature-card:hover {
    border-color: var(--color-primary);
    box-shadow: 0 0 40px var(--color-primary-glow);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-primary-glow);
    border: 1px solid rgba(0, 255, 157, 0.2);
    border-radius: var(--radius-md);
    margin-bottom: 20px;
    color: var(--color-primary);
}

.feature-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-description {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    line-height: 1.6;
}

.feature-list {
    font-size: 0.9rem;
    color: var(--color-text-muted);
}

.feature-list li {
    padding: 6px 0;
    padding-left: 20px;
    position: relative;
}

.feature-list li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--color-primary);
    opacity: 0.6;
}

/* SDK Section */
.sdk {
    padding: 100px 0;
}

.sdk-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 64px;
    align-items: center;
}

.sdk-info {
    text-align: left;
}

.sdk-info .section-tag {
    display: block;
    margin-bottom: 16px;
}

.sdk-info .section-title {
    text-align: left;
    margin-bottom: 20px;
}

.sdk-info .section-description {
    text-align: left;
    margin-bottom: 32px;
}

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

.sdk-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    transition: all var(--transition-fast);
}

.sdk-link:hover {
    border-color: var(--color-text-secondary);
    color: var(--color-text);
}

.code-block {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: var(--color-bg-elevated);
    border-bottom: 1px solid var(--color-border);
}

.code-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.code-dot.red { background: #ff5f56; }
.code-dot.yellow { background: #ffbd2e; }
.code-dot.green { background: #27c93f; }

.code-filename {
    margin-left: auto;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

.code-block pre {
    padding: 24px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    line-height: 1.7;
}

.code-block code {
    background: none;
    padding: 0;
    font-size: inherit;
    color: var(--color-text);
}

.code-keyword { color: #ff79c6; }
.code-string { color: #f1fa8c; }
.code-function { color: #50fa7b; }
.code-property { color: #8be9fd; }
.code-variable { color: #bd93f9; }
.code-comment { color: #6272a4; }

/* Enterprise */
.enterprise {
    padding: 100px 0;
    background: linear-gradient(180deg, transparent 0%, var(--color-bg-elevated) 50%, transparent 100%);
}

.enterprise-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.enterprise-card {
    padding: 28px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: border-color var(--transition-base);
}

.enterprise-card:hover {
    border-color: var(--color-text-muted);
}

.enterprise-icon {
    font-size: 1.5rem;
    color: var(--color-primary);
    margin-bottom: 16px;
    text-shadow: 0 0 15px var(--color-primary-glow);
}

.enterprise-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 10px;
}

.enterprise-card p {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.enterprise-note {
    max-width: 700px;
    margin: 0 auto;
    padding: 24px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    text-align: center;
}

.enterprise-note p {
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.enterprise-note a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

.enterprise-note a:hover {
    color: var(--color-primary-dim);
}

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

.cta-content {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.cta-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 16px;
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.85rem;
    font-family: var(--font-mono);
    color: var(--color-text-secondary);
    margin-bottom: 32px;
}

.status-indicator {
    width: 8px;
    height: 8px;
    background: var(--color-primary);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--color-primary);
}

.status-link {
    color: var(--color-text-muted);
    margin-left: 8px;
    padding-left: 12px;
    border-left: 1px solid var(--color-border);
}

.status-link:hover {
    color: var(--color-primary);
}

.cta-title {
    font-size: clamp(1.75rem, 4vw, 2.5rem);
    font-weight: 700;
    margin-bottom: 16px;
}

.cta-description {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 32px;
    line-height: 1.7;
}

/* Footer */
.footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--color-border);
    background: var(--color-bg-elevated);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 64px;
    margin-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-tagline {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: 8px;
}

.footer-company {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

.footer-company a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
}

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

.footer-column h4 {
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: 16px;
}

.footer-column ul li {
    margin-bottom: 10px;
}

.footer-column a {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
}

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

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid var(--color-border);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
}

/* Responsive */
@media (max-width: 900px) {
    .sdk-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .sdk-info {
        text-align: center;
    }
    
    .sdk-info .section-title,
    .sdk-info .section-description {
        text-align: center;
    }
    
    .sdk-links {
        justify-content: center;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 48px;
    }
    
    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 640px) {
    :root {
        --container-padding: 16px;
    }
    
    .nav-links {
        gap: 20px;
    }
    
    .hero {
        padding: 140px 0 80px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 20px;
        padding: 24px 32px;
    }
    
    .stat-divider {
        width: 40px;
        height: 1px;
    }
    
    .hero-cta {
        flex-direction: column;
    }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .features-grid,
    .enterprise-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    .code-block pre {
        padding: 16px;
        font-size: 0.75rem;
    }
}

/* Subtle animations */
@media (prefers-reduced-motion: no-preference) {
    .feature-card,
    .enterprise-card {
        transition: transform var(--transition-base), border-color var(--transition-base), box-shadow var(--transition-base);
    }
}

/* Selection */
::selection {
    background: var(--color-primary-glow-strong);
    color: var(--color-text);
}