/* ============================================
   Home Page (index.html) Specific Styles
   ============================================ */

/* Hero Section */
.hero {
    position: relative;
    padding: var(--spacing-xl) 0;
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(162, 207, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(162, 207, 255, 0.03) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.5;
}

.hero-content {
    position: relative;
    z-index: 1;
    text-align: center;
    max-width: 900px;
    animation: fadeInUp 0.8s ease;
}

.hero-label {
    display: inline-block;
    color: var(--accent-slate);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: var(--spacing-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    background-color: var(--bg-surface);
    border-radius: var(--radius-sm);
}

.hero-title {
    font-family: var(--font-headings);
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Section Headers */
.section-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-family: var(--font-headings);
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.section-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    max-width: 700px;
    margin: 0 auto;
}

/* Products Showcase Section */
.products-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.products-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.product-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    transition: all var(--transition-smooth);
    display: grid;
    grid-template-columns: 80px 1fr auto;
    gap: var(--spacing-md);
    align-items: start;
}

.product-card:hover {
    border-color: var(--accent-ice);
    box-shadow: 0 0 30px rgba(162, 207, 255, 0.15);
    transform: translateX(5px);
}

.product-icon {
    color: var(--accent-ice);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 64px;
    height: 64px;
    background-color: rgba(162, 207, 255, 0.08);
    border-radius: var(--radius-md);
}

.product-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.product-title {
    font-family: var(--font-headings);
    font-size: 1.375rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.product-description {
    color: var(--text-secondary);
    line-height: 1.6;
    margin: 0;
    font-size: 0.95rem;
}

.product-features {
    list-style: none;
    padding: 0;
    margin: var(--spacing-xs) 0 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.product-features li {
    color: var(--accent-slate);
    font-size: 0.875rem;
    padding: 0.25rem 0.75rem;
    background-color: rgba(107, 118, 136, 0.1);
    border-radius: var(--radius-sm);
}

.product-action {
    display: flex;
    align-items: center;
    justify-content: center;
}

.product-link {
    color: var(--accent-ice);
    text-decoration: none;
    font-weight: 500;
    transition: all var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    white-space: nowrap;
    padding: 0.5rem 1rem;
    border: 1px solid var(--accent-ice);
    border-radius: var(--radius-md);
}

.product-link:hover {
    background-color: var(--accent-ice);
    color: var(--bg-primary);
    gap: 0.5rem;
}

/* Features Section */
.features {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-surface);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.feature-card {
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    transition: all var(--transition-smooth);
}

.feature-card:hover {
    border-color: var(--accent-ice);
    box-shadow: 0 0 30px rgba(162, 207, 255, 0.15);
    transform: translateY(-5px);
}

.feature-icon {
    color: var(--accent-ice);
    margin-bottom: var(--spacing-sm);
}

.feature-title {
    font-family: var(--font-headings);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-xs);
}

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

/* Dataset Preview Section */
.dataset-preview {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-primary);
}

.preview-header {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.preview-table-wrapper {
    overflow-x: auto;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    margin-bottom: var(--spacing-md);
}

.preview-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.preview-table thead {
    background-color: var(--bg-surface);
}

.preview-table th {
    padding: var(--spacing-sm);
    text-align: left;
    font-weight: 600;
    color: var(--accent-ice);
    border-bottom: 2px solid var(--border-color);
    white-space: nowrap;
}

.preview-table td {
    padding: var(--spacing-sm);
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.preview-table tbody tr:hover {
    background-color: var(--bg-surface);
}

.preview-note {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* CTA Section */
.cta-section {
    padding: var(--spacing-xl) 0;
    background-color: var(--bg-surface);
    text-align: center;
}

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

.cta-title {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.cta-subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
}

/* Scroll Animations */
.fade-in-section {
    opacity: 1;
}

.fade-in-element {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

.fade-in-element.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger animation delays for grid items */
.product-card:nth-child(1) { transition-delay: 0.05s; }
.product-card:nth-child(2) { transition-delay: 0.1s; }
.product-card:nth-child(3) { transition-delay: 0.15s; }
.product-card:nth-child(4) { transition-delay: 0.2s; }

.feature-card:nth-child(1) { transition-delay: 0.1s; }
.feature-card:nth-child(2) { transition-delay: 0.2s; }
.feature-card:nth-child(3) { transition-delay: 0.3s; }

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .products-grid {
        flex-direction: column;
    }
    
    .product-card {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .product-action {
        justify-content: flex-start;
    }
    
    .section-title {
        font-size: 2rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
}