:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --secondary: #8b5cf6;
    --accent: #ec4899;
    --background: #000000;
    --surface: #000000;
    --surface-light: #1a1a1a;
    --text: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border: #333333;
    --success: #10b981;
    --warning: #f59e0b;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
        'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: var(--background);
    color: var(--text);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: var(--primary-dark);
}

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

/* Header & Navigation */
header {
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    padding: 1.5rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo a {
    display: flex;
    align-items: center;
    gap: 1rem;
    text-decoration: none;
}

.logo-img {
    width: 50px;
    height: 50px;
    border-radius: 8px;
}

.logo-text h1 {
    font-size: 2rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.25rem;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.logo-links {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.icon-link {
    color: var(--text);
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    opacity: 0.8;
}

.icon-link:hover {
    color: var(--primary);
    transform: translateY(-2px);
    opacity: 1;
}

.icon-link img {
    width: 28px;
    height: 28px;
}

.tagline {
    font-size: 0.875rem;
    color: var(--text-muted);
    font-style: italic;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    color: var(--text);
    font-weight: 500;
    transition: all 0.3s ease;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
}

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

/* Hero Section */
.hero {
    padding: 6rem 0;
    text-align: center;
    background: var(--background);
}

.hero-stats {
    display: none;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

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

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.875rem 2rem;
    border-radius: 0.5rem;
    font-weight: 600;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.btn-primary {
    background: var(--gradient);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.3);
}

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

.btn-secondary:hover {
    background: var(--primary);
    color: white;
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

/* Sections */
.models-section,
.architecture-section,
.downloads-section {
    padding: 5rem 0;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 3rem;
}

/* Models Grid */
.models-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.model-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2rem;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.model-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: var(--gradient);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.model-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

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

.model-card.complete {
    border-color: var(--success);
}

.model-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.model-header h3 {
    font-size: 1.5rem;
    color: var(--text);
}

.badge {
    padding: 0.375rem 0.875rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-complete {
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.badge-pending {
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
    border: 1px solid var(--warning);
}

.model-specs {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.spec {
    display: flex;
    flex-direction: column;
}

.spec-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}

.spec-value {
    font-size: 1rem;
    color: var(--text);
    font-weight: 600;
}

.model-description {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
    line-height: 1.6;
}

.model-formats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.format-tag {
    background: var(--surface-light);
    color: var(--text-secondary);
    padding: 0.375rem 0.75rem;
    border-radius: 0.375rem;
    font-size: 0.75rem;
    font-weight: 500;
}

.model-actions {
    display: flex;
    gap: 0.75rem;
}

/* Architecture Section */
.architecture-section {
    background: var(--background);
}

.arch-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-top: 3rem;
}

.arch-card {
    text-align: center;
    padding: 2rem;
    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 1rem;
    transition: all 0.3s ease;
}

.arch-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.arch-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.arch-card h3 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text);
}

.arch-card p {
    color: var(--text-muted);
}

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

.download-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 2.5rem;
    text-align: center;
    transition: all 0.3s ease;
}

.download-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

.download-card h3 {
    font-size: 1.75rem;
    margin-bottom: 1rem;
    color: var(--text);
}

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

/* Footer */
footer {
    background: var(--background);
    border-top: 1px solid var(--border);
    padding: 3rem 0 1.5rem;
    margin-top: 5rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h4 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    color: var(--text);
}

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

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

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* Featured Section */
.featured-section {
    padding: 5rem 0;
    background: linear-gradient(180deg, var(--surface-light) 0%, var(--background) 100%);
}

/* Dataset Section */
.dataset-section {
    padding: 5rem 0;
    background: var(--background);
}

/* Models Table */
.model-lineup {
    overflow-x: auto;
    margin: 2rem 0;
}

.models-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    overflow: hidden;
}

.models-table th,
.models-table td {
    padding: 1rem 1.5rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.models-table th {
    background: var(--surface-light);
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.models-table td {
    color: var(--text);
}

.models-table tbody tr:hover {
    background: var(--surface-light);
}

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

/* Status Badges */
.status-trained {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(16, 185, 129, 0.2);
    color: var(--success);
    border: 1px solid var(--success);
}

.status-training {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(99, 102, 241, 0.2);
    color: var(--primary);
    border: 1px solid var(--primary);
    animation: pulse 2s infinite;
}

.status-planned {
    display: inline-block;
    padding: 0.375rem 0.875rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    background: rgba(245, 158, 11, 0.2);
    color: var(--warning);
    border: 1px solid var(--warning);
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.7; }
}

/* Additional Button Styles */
.btn-outline {
    background: transparent;
    border: 2px solid var(--text-muted);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Code blocks in cards */
.download-card pre {
    background: var(--surface-light);
    border: 1px solid var(--border);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1rem;
    overflow-x: auto;
}

.download-card code {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    color: var(--primary);
}

/* Nav active state */
.nav-links a.active {
    background: var(--surface-light);
    color: var(--primary);
}

/* Coder Features Grid */
.coder-features {
    margin-top: 3rem;
}

.coder-features .arch-card h3 {
    color: var(--primary);
    margin-bottom: 0.75rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .navbar .container {
        flex-direction: column;
        gap: 1rem;
    }

    .header-right {
        flex-direction: column;
        gap: 1rem;
    }

    .nav-links {
        gap: 1rem;
    }

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

    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

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

    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1rem;
    }

    .hero {
        padding: 4rem 0;
    }

    .hero-title {
        font-size: 2rem;
    }

    .header-right {
        width: 100%;
    }

    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
    }

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