:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-tertiary: #334155;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent: #f59e0b;
    --accent-hover: #fbbf24;
    --accent-secondary: #10b981;
    --border: #334155;
    --code-bg: #1e1e2e;
    --success: #10b981;
    --warning: #f59e0b;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navigation */
.navbar {
    background-color: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 64px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
    font-size: 0.95rem;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent);
}

/* Hero Section */
.hero {
    padding: 6rem 0 4rem;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border-bottom: 1px solid var(--border);
}

.hero h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -2px;
}

.tagline {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.description {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--text-primary);
    border: 2px solid var(--border);
}

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

/* Features Grid */
.features {
    padding: 5rem 0;
}

.features h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.section-intro {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: transform 0.2s, border-color 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-card h3 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Pipeline Section */
.pipeline {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.pipeline h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.pipeline-flow {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 2rem;
}

.pipeline-step {
    text-align: center;
    padding: 1.5rem;
    background-color: var(--bg-tertiary);
    border-radius: 12px;
    min-width: 140px;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background-color: var(--accent);
    color: var(--bg-primary);
    border-radius: 50%;
    font-weight: 700;
    font-size: 0.875rem;
    margin-bottom: 0.5rem;
}

.pipeline-step h4 {
    font-size: 1rem;
    margin-bottom: 0.25rem;
}

.pipeline-step p {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.pipeline-arrow {
    font-size: 1.5rem;
    color: var(--accent);
    font-weight: 700;
}

.pipeline-note {
    text-align: center;
    color: var(--text-muted);
    font-style: italic;
}

/* Quick Start */
.quick-start {
    padding: 5rem 0;
    text-align: center;
}

.quick-start h2 {
    font-size: 2.5rem;
    margin-bottom: 2rem;
}

.code-block {
    background-color: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 1.5rem 0;
    overflow-x: auto;
    text-align: left;
}

.code-block pre {
    margin: 0;
}

.code-block code {
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.link {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.link:hover {
    text-decoration: underline;
}

/* Features Detailed */
.features-detailed {
    padding: 5rem 0;
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
}

.features-detailed h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.feature-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.feature-item {
    background-color: var(--bg-primary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.feature-item h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--accent);
}

.feature-item ul {
    list-style: none;
    padding: 0;
}

.feature-item li {
    padding: 0.5rem 0;
    padding-left: 1.5rem;
    position: relative;
    color: var(--text-secondary);
}

.feature-item li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* Roadmap */
.roadmap {
    padding: 5rem 0;
}

.roadmap h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 3rem;
}

.roadmap-items {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.roadmap-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.status {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--accent);
    color: var(--bg-primary);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.roadmap-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.roadmap-item p {
    color: var(--text-secondary);
}

/* Page Header */
.page-header {
    padding: 4rem 0;
    text-align: center;
    background: linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.page-header p {
    font-size: 1.2rem;
    color: var(--text-secondary);
}

/* Content Sections */
.content {
    padding: 3rem 0;
}

.content h2 {
    font-size: 2rem;
    margin: 3rem 0 1.5rem;
    color: var(--text-primary);
}

.content h3 {
    font-size: 1.5rem;
    margin: 2rem 0 1rem;
    color: var(--accent);
}

.content h4 {
    font-size: 1.25rem;
    margin: 1.5rem 0 0.75rem;
    color: var(--text-primary);
}

.content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.content ul, .content ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-secondary);
}

.content li {
    margin-bottom: 0.5rem;
    line-height: 1.6;
}

.content blockquote {
    border-left: 4px solid var(--accent);
    padding-left: 1.5rem;
    margin: 2rem 0;
    font-style: italic;
    font-size: 1.25rem;
    color: var(--text-primary);
}

/* Install Methods */
.method-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.method-card {
    background-color: var(--bg-secondary);
    border: 2px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    position: relative;
}

.method-card.recommended {
    border-color: var(--accent);
}

.badge {
    position: absolute;
    top: -12px;
    left: 2rem;
    background-color: var(--accent);
    color: var(--bg-primary);
    padding: 0.25rem 1rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.method-card h3 {
    margin-top: 0.5rem;
    color: var(--text-primary);
}

.method-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Requirements */
.requirements {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.req-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.req-card h4 {
    margin-top: 0;
    color: var(--accent);
}

.req-card .note {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-top: 0.5rem;
}

/* Steps */
.steps {
    margin: 2rem 0;
}

.step {
    margin-bottom: 3rem;
    padding-bottom: 2rem;
    border-bottom: 1px solid var(--border);
}

.step:last-child {
    border-bottom: none;
}

.step-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: var(--accent);
    color: var(--bg-primary);
    border-radius: 50%;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.step-header h3 {
    margin: 0;
    color: var(--text-primary);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    background-color: var(--bg-secondary);
    border-radius: 12px;
    overflow: hidden;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background-color: var(--bg-tertiary);
    font-weight: 600;
    color: var(--text-primary);
}

td {
    color: var(--text-secondary);
}

td code {
    background-color: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Models Table */
.models-table {
    margin: 1.5rem 0;
}

/* Troubleshooting */
.troubleshooting {
    margin: 2rem 0;
}

.trouble-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.trouble-item h4 {
    margin-top: 0;
    color: var(--accent);
}

/* Next Steps */
.next-steps {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    margin-top: 3rem;
    text-align: center;
}

.next-steps h2 {
    margin-top: 0;
}

/* Philosophy */
.philosophy {
    margin: 2rem 0;
}

.philosophy blockquote {
    font-size: 1.5rem;
    margin-bottom: 2rem;
}

/* Pipeline Diagram */
.pipeline-diagram {
    margin: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.pipeline-layer {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.layer-label {
    font-weight: 700;
    color: var(--accent);
    min-width: 80px;
    text-transform: uppercase;
    font-size: 0.875rem;
}

.layer-flow {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
    flex: 1;
}

.pipe-box {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.pipe-box.highlight {
    border-color: var(--accent);
    color: var(--text-primary);
}

.pipeline-arrow,
.arrow {
    color: var(--accent);
    font-weight: 700;
}

/* Latency Tricks */
.latency-tricks {
    margin: 2rem 0;
}

.trick-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.trick-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.trick-card h4 {
    margin-top: 0;
    color: var(--accent);
}

.trick-card p {
    font-size: 0.95rem;
}

.trick-card code {
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Architecture Diagram */
.arch-diagram {
    margin: 2rem 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.arch-layer {
    border-radius: 12px;
    padding: 2rem;
}

.arch-layer.primary {
    background-color: var(--bg-secondary);
    border: 2px solid var(--accent);
}

.arch-layer.secondary {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
}

.arch-layer h3 {
    margin-top: 0;
    margin-bottom: 1rem;
}

.arch-components {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.arch-comp {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.arch-note {
    font-style: italic;
    color: var(--accent);
    font-size: 0.9rem;
}

.arch-connector {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

/* Structure */
.structure pre {
    background-color: var(--code-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    overflow-x: auto;
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-secondary);
}

/* Modules */
.modules {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.module-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.module-card h3 {
    margin-top: 0;
    color: var(--accent);
}

.module-card ul {
    margin-top: 1rem;
}

.module-card li {
    margin-bottom: 0.5rem;
}

.module-card code {
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.85rem;
}

/* Modes */
.modes {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.mode-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.mode-card h3 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.mode-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background-color: var(--accent);
    color: var(--bg-primary);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

/* API Endpoints */
.api-endpoints {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin: 1.5rem 0;
}

.endpoint {
    display: flex;
    align-items: center;
    gap: 1rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
    flex-wrap: wrap;
}

.method {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.method.get {
    background-color: var(--accent-secondary);
    color: var(--bg-primary);
}

.method.post {
    background-color: var(--accent);
    color: var(--bg-primary);
}

.endpoint code {
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
    font-size: 0.9rem;
}

.endpoint .desc {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Back Link */
.back-link {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
}

.back-link a {
    color: var(--accent);
    text-decoration: none;
    font-weight: 500;
}

.back-link a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 3rem 0;
    text-align: center;
    margin-top: 4rem;
}

footer p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

footer a {
    color: var(--accent);
    text-decoration: none;
}

footer a:hover {
    text-decoration: underline;
}

.trademark {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .tagline {
        font-size: 1.1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .navbar .container {
        flex-direction: column;
        height: auto;
        padding: 1rem;
    }
    
    .nav-links {
        margin-top: 1rem;
        gap: 1rem;
    }
    
    .pipeline-flow {
        flex-direction: column;
    }
    
    .pipeline-arrow {
        transform: rotate(90deg);
    }
    
    .pipeline-layer {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .layer-flow {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .modules {
        grid-template-columns: 1fr;
    }
    
    .feature-list {
        grid-template-columns: 1fr;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .endpoint {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* Inline code */
p code, li code {
    background-color: var(--bg-tertiary);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-size: 0.9em;
    font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
}