/* Eldric - Modern Design System */

:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a25;
    --bg-card: #15151f;
    --border-color: #2a2a3a;
    --border-light: #3a3a4a;
    --text-primary: #ffffff;
    --text-secondary: #a0a0b0;
    --text-muted: #707080;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a855f7 100%);
    --success: #22c55e;
    --warning: #f59e0b;
    --error: #ef4444;
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

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

.container-narrow {
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(1.75rem, 3vw, 2.5rem); }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.125rem; }

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

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover { color: var(--accent-secondary); }

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-primary);
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: var(--accent-gradient);
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.125rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-secondary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.25rem;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: white;
    box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 24px rgba(99, 102, 241, 0.4);
    color: white;
}

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

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

.btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
}

.btn-ghost {
    background: transparent;
    color: var(--text-secondary);
}

.btn-ghost:hover {
    color: var(--text-primary);
    background: var(--bg-tertiary);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 8rem 0 4rem;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.15), transparent),
        var(--bg-primary);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.hero-content {
    max-width: 600px;
}

.hero h1 {
    margin-bottom: 1.5rem;
}

.hero h1 .gradient-text {
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 3rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.375rem 0.875rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-accent {
    background: rgba(99, 102, 241, 0.15);
    border-color: rgba(99, 102, 241, 0.3);
    color: var(--accent-primary);
}

.badges {
    display: flex;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

/* Stats */
.hero-stats {
    display: flex;
    gap: 3rem;
}

.stat {
    text-align: left;
}

.stat-value {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1;
    margin-bottom: 0.25rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
}

/* Terminal */
.terminal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.terminal-header {
    background: var(--bg-tertiary);
    padding: 0.875rem 1rem;
    display: flex;
    align-items: center;
    gap: 0.25rem;
    border-bottom: 1px solid var(--border-color);
}

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

.terminal-dot.red { background: #ff5f57; }
.terminal-dot.yellow { background: #febc2e; }
.terminal-dot.green { background: #28c840; }

.terminal-title {
    margin-left: auto;
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: 'JetBrains Mono', monospace;
}

.terminal-body {
    padding: 1.5rem;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
    line-height: 1.7;
    overflow-x: auto;
    max-height: 400px;
    overflow-y: auto;
}

.terminal-body pre {
    margin: 0;
}

.terminal-body code {
    color: var(--text-secondary);
}

.terminal-body .prompt { color: var(--success); }
.terminal-body .comment { color: var(--text-muted); }
.terminal-body .user { color: var(--accent-primary); font-weight: 600; }
.terminal-body .assistant { color: var(--accent-secondary); font-weight: 600; }
.terminal-body .tool { color: var(--warning); }
.terminal-body .success { color: var(--success); }
.terminal-body .result { color: var(--text-muted); }

/* Sections */
section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.section-header h2 {
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
}

.section-dark {
    background: var(--bg-secondary);
}

/* Product Cards */
.products-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
}

.product-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    position: relative;
    transition: all 0.3s;
}

.product-card:hover {
    border-color: var(--border-light);
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.product-card.featured {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.product-card.featured:hover {
    box-shadow: 0 0 60px rgba(99, 102, 241, 0.2);
}

.product-badge {
    position: absolute;
    top: -12px;
    left: 2rem;
    background: var(--accent-gradient);
    padding: 0.375rem 1rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.product-icon {
    width: 56px;
    height: 56px;
    background: var(--bg-tertiary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

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

.product-card h2 {
    font-size: 1.75rem;
    margin-bottom: 0.5rem;
}

.product-tagline {
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.product-features {
    list-style: none;
    margin: 1.5rem 0;
}

.product-features li {
    padding: 0.625rem 0;
    padding-left: 1.75rem;
    position: relative;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.product-features li:last-child {
    border-bottom: none;
}

.product-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 8px;
    height: 8px;
    background: var(--success);
    border-radius: 50%;
}

.product-features li.disabled {
    color: var(--text-muted);
}

.product-features li.disabled::before {
    background: var(--text-muted);
    opacity: 0.3;
}

.product-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

/* Feature Grid */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(99, 102, 241, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    stroke: var(--accent-primary);
}

.feature-card h3 {
    margin-bottom: 0.75rem;
}

.feature-card p {
    font-size: 0.9375rem;
    margin-bottom: 1rem;
}

.feature-list {
    list-style: none;
    font-size: 0.875rem;
}

.feature-list li {
    padding: 0.375rem 0;
    color: var(--text-muted);
    padding-left: 1.25rem;
    position: relative;
}

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

/* Comparison Table */
.data-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.data-table th,
.data-table td {
    padding: 1rem 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--bg-tertiary);
    font-weight: 600;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
}

.data-table td {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table tr:hover td {
    background: rgba(99, 102, 241, 0.03);
}

.data-table code {
    background: var(--bg-tertiary);
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.8125rem;
}

/* Architecture Diagram */
.architecture-diagram {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 2rem 0;
    overflow-x: auto;
}

.diagram {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    line-height: 1.4;
    color: var(--text-secondary);
    white-space: pre;
    margin: 0;
}

/* Cluster Features */
.cluster-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
}

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

.cluster-card h4 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.cluster-card ul {
    list-style: none;
    font-size: 0.875rem;
}

.cluster-card li {
    padding: 0.375rem 0;
    color: var(--text-muted);
}

/* Agents Grid */
.agents-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 1rem;
}

.agent-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    text-align: center;
    transition: all 0.2s;
}

.agent-card:hover {
    border-color: var(--accent-primary);
    transform: translateY(-2px);
}

.agent-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-gradient);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    margin: 0 auto 0.75rem;
}

.agent-card h4 {
    margin-bottom: 0.25rem;
    font-size: 1rem;
}

.agent-card p {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Backends Grid */
.backends-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
}

.backend-category {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
}

.backend-category h4 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--accent-primary);
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.backend-category ul {
    list-style: none;
}

.backend-category li {
    padding: 0.5rem 0;
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

/* Pricing */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.pricing-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: 2.5rem;
    position: relative;
}

.pricing-card.featured {
    border-color: var(--accent-primary);
    box-shadow: var(--shadow-glow);
}

.pricing-card .popular {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--accent-gradient);
    padding: 0.375rem 1.25rem;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.pricing-card h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.price {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.price span {
    font-size: 1rem;
    font-weight: 400;
    color: var(--text-muted);
}

.pricing-card ul {
    list-style: none;
    margin: 2rem 0;
}

.pricing-card li {
    padding: 0.75rem 0;
    padding-left: 1.75rem;
    position: relative;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

.pricing-card li:last-child {
    border-bottom: none;
}

.pricing-card li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--success);
    font-weight: 600;
}

.pricing-card li.disabled {
    color: var(--text-muted);
}

.pricing-card li.disabled::before {
    content: '×';
    color: var(--text-muted);
}

.pricing-card .btn {
    width: 100%;
}

/* Download Section */
.download-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
}

.download-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
}

.download-card h4 {
    margin-bottom: 0.5rem;
}

.download-card > p {
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.download-card .btn {
    width: 100%;
    margin-bottom: 1.5rem;
}

.download-card pre {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: var(--radius-md);
    text-align: left;
    overflow-x: auto;
}

.download-card code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.requirements {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-top: 3rem;
}

.requirements h4 {
    margin-bottom: 1rem;
}

.requirements ul {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 2rem;
}

.requirements li {
    color: var(--text-secondary);
}

/* Page Header */
.page-header {
    padding: 10rem 0 4rem;
    text-align: center;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.12), transparent),
        var(--bg-primary);
}

.page-header h1 {
    margin-bottom: 1rem;
}

.page-header > .container > p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Content Section */
.content-section {
    padding: 4rem 0;
}

.content-section h2 {
    margin: 3rem 0 1.5rem;
}

.content-section h2:first-child {
    margin-top: 0;
}

.lead {
    font-size: 1.25rem;
    color: var(--text-secondary);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto 3rem;
    text-align: center;
}

/* Info Banner */
.info-banner {
    background: rgba(99, 102, 241, 0.08);
    border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin: 2rem 0;
}

.info-banner h3 {
    color: var(--accent-primary);
    margin-bottom: 0.75rem;
}

/* CTA Section */
.cta-section {
    background: var(--accent-gradient);
    padding: 5rem 0;
    text-align: center;
}

.cta-section h2 {
    color: white;
    margin-bottom: 1rem;
}

.cta-section p {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

/* Footer */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 4rem 0 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr repeat(3, 1fr);
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-brand p {
    margin-top: 1rem;
    font-size: 0.9375rem;
}

.footer-links h5 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

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

.footer-links li {
    padding: 0.375rem 0;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9375rem;
}

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

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid var(--border-color);
    text-align: center;
}

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

/* FAQ */
.faq-grid {
    display: grid;
    gap: 1rem;
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.5rem;
}

.faq-item h4 {
    margin-bottom: 0.75rem;
}

.faq-item p {
    font-size: 0.9375rem;
    line-height: 1.7;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-content {
        max-width: 100%;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-visual {
        display: none;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        grid-template-columns: 1fr;
    }
    
    .cluster-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .backends-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .download-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
    }
    
    .cluster-grid,
    .backends-grid {
        grid-template-columns: 1fr;
    }
    
    .product-actions {
        flex-direction: column;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
}