/* Variables */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #3b82f6;
    --secondary: #64748b;
    --accent: #06b6d4;
    --bg-dark: #0f172a;
    --bg-darker: #020617;
    --bg-light: #f8fafc;
    --bg-card: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-dark: #1e293b;
    --text-dark-secondary: #64748b;
    --border: #334155;
    --border-light: #e2e8f0;
    --gradient-1: linear-gradient(135deg, #2563eb 0%, #06b6d4 100%);
    --gradient-2: linear-gradient(135deg, #1e293b 0%, #0f172a 100%);
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
    --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -1px rgba(0,0,0,0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
    --radius-sm: 6px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--bg-dark);
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    padding: 0 24px;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 20px;
}

.logo-icon {
    font-size: 24px;
}

.logo-text {
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

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

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

.github-link {
    display: flex;
    align-items: center;
    gap: 6px;
}

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
}

.mobile-menu-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all 0.3s;
}

/* Hero Section */
.hero {
    padding: 120px 0 80px;
    min-height: 100vh;
    display: flex;
    align-items: center;
    background: var(--bg-darker);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(ellipse at 50% 0%, rgba(37, 99, 235, 0.15) 0%, transparent 60%);
    pointer-events: none;
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(37, 99, 235, 0.2);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    color: var(--primary-light);
    margin-bottom: 16px;
}

.hero h1 {
    font-size: 56px;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 16px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 24px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 16px;
}

.hero-description {
    font-size: 16px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 32px;
    max-width: 480px;
}

.hero-buttons {
    display: flex;
    gap: 12px;
    margin-bottom: 32px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
    box-shadow: 0 4px 14px rgba(37, 99, 235, 0.4);
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
}

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

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

.btn-outline {
    background: transparent;
    color: var(--primary-light);
    border: 1px solid var(--primary);
}

.btn-outline:hover {
    background: rgba(37, 99, 235, 0.1);
}

.hero-install {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    max-width: 300px;
}

.hero-install code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 14px;
    color: var(--accent);
    flex: 1;
}

.copy-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s;
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.copy-btn.copied {
    color: #22c55e;
}

/* Code Window */
.code-window {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-xl);
}

.code-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border);
}

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

.code-dot.red { background: #ef4444; }
.code-dot.yellow { background: #eab308; }
.code-dot.green { background: #22c55e; }

.code-title {
    margin-left: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--text-secondary);
}

.code-content {
    padding: 20px;
    overflow-x: auto;
}

.code-content code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
}

.keyword { color: #c084fc; }
.function { color: #60a5fa; }
.string { color: #34d399; }
.comment { color: #64748b; font-style: italic; }

/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-dark);
}

.section-title {
    font-size: 36px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 12px;
}

.section-subtitle {
    font-size: 16px;
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.1);
}

.feature-icon {
    font-size: 40px;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

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

/* Devices Section */
.devices {
    padding: 100px 0;
    background: var(--bg-darker);
}

.devices-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
}

.device-card {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all 0.3s;
}

.device-card:hover {
    border-color: var(--primary);
}

.device-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.device-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 4px;
}

.device-card > p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.device-formats {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.format-tag {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(37, 99, 235, 0.1);
    border: 1px solid rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    color: var(--primary-light);
}

.device-levels {
    display: flex;
    gap: 8px;
}

.level {
    display: inline-block;
    padding: 4px 10px;
    background: rgba(6, 182, 212, 0.1);
    border: 1px solid rgba(6, 182, 212, 0.2);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--accent);
}

/* Quick Start Section */
.quickstart {
    padding: 100px 0;
    background: var(--bg-dark);
}

.steps {
    max-width: 700px;
    margin: 0 auto;
}

.step {
    display: flex;
    gap: 24px;
    margin-bottom: 40px;
    position: relative;
}

.step:not(:last-child)::after {
    content: '';
    position: absolute;
    left: 23px;
    top: 48px;
    bottom: -40px;
    width: 2px;
    background: var(--border);
}

.step-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    background: var(--gradient-1);
    border-radius: 50%;
    font-size: 18px;
    font-weight: 700;
    color: white;
    flex-shrink: 0;
}

.step-content {
    flex: 1;
}

.step-content h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 12px;
}

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

.code-block pre {
    padding: 16px;
    overflow-x: auto;
}

.code-block code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
}

.code-block .copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
}

.step-note {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-secondary);
}

.step-note code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--accent);
    background: rgba(6, 182, 212, 0.1);
    padding: 2px 6px;
    border-radius: 4px;
}

/* API Preview Section */
.api-preview {
    padding: 100px 0;
    background: var(--bg-darker);
}

.api-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    margin-bottom: 40px;
}

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

.api-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    background: rgba(0, 0, 0, 0.2);
    border-bottom: 1px solid var(--border);
}

.api-name {
    font-family: 'JetBrains Mono', monospace;
    font-size: 16px;
    font-weight: 600;
    color: var(--primary-light);
}

.api-badge {
    padding: 4px 10px;
    background: rgba(37, 99, 235, 0.2);
    border-radius: var(--radius-sm);
    font-size: 12px;
    color: var(--primary-light);
}

.api-methods {
    padding: 16px 20px;
}

.api-method {
    display: flex;
    align-items: baseline;
    gap: 12px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
}

.api-method:last-child {
    border-bottom: none;
}

.api-method code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--accent);
    white-space: nowrap;
}

.api-method span {
    font-size: 13px;
    color: var(--text-secondary);
}

.docs-link {
    text-align: center;
}

/* Ecosystem Section */
.ecosystem {
    padding: 80px 0;
    background: var(--bg-dark);
}

.ecosystem-logos {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.eco-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.eco-icon {
    font-size: 40px;
}

.eco-item span:last-child {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

/* Author Section */
.author {
    padding: 100px 0;
    background: var(--bg-dark);
}

.author-card {
    display: flex;
    gap: 48px;
    max-width: 900px;
    margin: 0 auto;
    padding: 40px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-xl);
}

.author-avatar {
    flex-shrink: 0;
}

.avatar-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(37, 99, 235, 0.3);
    box-shadow: 0 0 30px rgba(37, 99, 235, 0.3);
}

.author-info {
    flex: 1;
}

.author-name {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 4px;
    background: var(--gradient-1);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.author-alias {
    font-size: 18px;
    font-weight: 500;
    background: none;
    -webkit-text-fill-color: var(--text-secondary);
    opacity: 0.8;
}

.author-title {
    font-size: 16px;
    color: var(--accent);
    margin-bottom: 16px;
}

.author-bio {
    font-size: 15px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 20px;
}

.author-research {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.author-research li {
    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.research-icon {
    font-size: 28px;
    flex-shrink: 0;
    margin-top: 2px;
}

.author-research li strong {
    display: block;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.author-research li span {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

.author-links {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.author-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: var(--radius-md);
    color: var(--primary-light);
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    transition: all 0.2s;
}

.author-link:hover {
    background: rgba(37, 99, 235, 0.25);
    border-color: var(--primary);
    transform: translateY(-1px);
}

/* Contributors Section */
.contributors {
    padding: 100px 0;
    background: var(--bg-darker);
}

.contributors-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    max-width: 1000px;
    margin: 0 auto;
}

.contributors-thanks,
.contributors-cta {
    padding: 32px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
}

.thanks-icon {
    font-size: 48px;
    margin-bottom: 16px;
}

.contributors-thanks h3,
.contributors-cta h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
}

.contributors-thanks p {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: 16px;
}

.contributors-list {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.contributor-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: rgba(37, 99, 235, 0.15);
    border: 1px solid rgba(37, 99, 235, 0.3);
    border-radius: 20px;
    text-decoration: none;
    transition: all 0.2s;
}

.contributor-badge:hover {
    background: rgba(37, 99, 235, 0.25);
    transform: translateY(-1px);
}

.contributor-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
}

.contributor-badge span {
    font-size: 13px;
    font-weight: 500;
    color: var(--primary-light);
}

.contributors-note {
    font-size: 13px;
    font-style: italic;
}

.contributors-cta p {
    font-size: 14px;
    color: var(--text-secondary);
    margin-bottom: 16px;
}

.contribute-types {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.contribute-types li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.contribute-icon {
    font-size: 24px;
    flex-shrink: 0;
}

.contribute-types li strong {
    display: block;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.contribute-types li span {
    font-size: 13px;
    color: var(--text-secondary);
}

.contribute-links {
    display: flex;
    gap: 12px;
}

/* Footer */
.footer {
    padding: 60px 0 30px;
    background: var(--bg-darker);
    border-top: 1px solid var(--border);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 40px;
}

.footer-brand p {
    margin-top: 12px;
    font-size: 14px;
    color: var(--text-secondary);
    max-width: 280px;
}

.footer-links h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 16px;
}

.footer-links ul {
    list-style: none;
}

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

.footer-links a {
    font-size: 14px;
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

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

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--border);
    text-align: center;
}

.footer-bottom p {
    font-size: 13px;
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-description {
        max-width: 100%;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-install {
        margin: 0 auto;
    }

    .hero-visual {
        display: none;
    }

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

    .author-card {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .author-research li {
        flex-direction: column;
        align-items: center;
    }

    .author-links {
        justify-content: center;
    }

    .contributors-content {
        grid-template-columns: 1fr;
    }
}

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

    .mobile-menu-btn {
        display: flex;
    }

    .hero h1 {
        font-size: 40px;
    }

    .hero-subtitle {
        font-size: 20px;
    }

    .section-title {
        font-size: 28px;
    }

    .features-grid,
    .devices-grid,
    .api-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }

    .step:not(:last-child)::after {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 100px 0 60px;
    }

    .hero h1 {
        font-size: 32px;
    }

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

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

    .ecosystem-logos {
        gap: 24px;
    }
}