/* ============================================
   Data Page Specific Styles
   ============================================ */

/* Data Cards Grid */
.data-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.data-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-smooth);
}

.data-card:hover {
    border-color: var(--accent-ice);
    box-shadow: 0 0 20px rgba(162, 207, 255, 0.1);
    transform: translateY(-3px);
}

.data-card-locked {
    opacity: 0.6;
}

.data-card-header {
    padding: var(--spacing-md);
    background-color: var(--bg-primary);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.data-card-header h3 {
    font-size: 1.125rem;
    font-weight: 600;
}

.data-card-body {
    padding: var(--spacing-md);
}

/* Dataset Features List */
.data-features,
.dataset-features {
    list-style: none;
    margin-bottom: var(--spacing-md);
    padding: 0;
}

.data-features li,
.dataset-features li {
    padding: var(--spacing-xs) 0;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
}

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

.dataset-features li {
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: none;
}

.dataset-features li:before {
    content: '✓';
    color: var(--accent-ice);
    font-weight: 700;
}

/* Timeframe Description */
.timeframe-desc {
    color: var(--text-secondary);
    text-align: center;
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm) 0;
    font-size: 0.95rem;
}

/* Custom Data Card */
.data-card-custom {
    border: 2px solid var(--accent-ice);
    background: linear-gradient(135deg, var(--bg-surface) 0%, rgba(162, 207, 255, 0.05) 100%);
}

.data-card-custom:hover {
    box-shadow: 0 8px 30px rgba(162, 207, 255, 0.2);
}

/* Download Button */
.download-btn {
    margin-top: var(--spacing-sm);
}

/* Badge Styles */
.badge-premium {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.badge-custom {
    background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    color: white;
}

/* Format Selector */
.format-selector {
    margin: 1.5rem 0;
    padding: 1rem;
    background: rgba(162, 207, 255, 0.05);
    border: 1px solid rgba(162, 207, 255, 0.1);
    border-radius: 8px;
}

.format-selector label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.format-buttons {
    display: flex;
    gap: 0.75rem;
}

.format-btn {
    flex: 1;
    padding: 1rem;
    background: var(--bg-surface);
    border: 2px solid rgba(162, 207, 255, 0.2);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-primary);
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-primary);
}

.format-btn:hover {
    border-color: rgba(162, 207, 255, 0.4);
    background: rgba(162, 207, 255, 0.05);
}

.format-btn.active {
    border-color: var(--accent-ice);
    background: rgba(162, 207, 255, 0.1);
}

.format-icon {
    font-size: 1.5rem;
}

.format-size {
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.format-badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    background: rgba(162, 207, 255, 0.2);
    border-radius: 12px;
    font-size: 0.65rem;
    font-weight: 600;
    color: var(--accent-ice);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* Scroll Animations */
.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 data cards */
.data-card.fade-in-element:nth-child(1) { transition-delay: 0.1s; }
.data-card.fade-in-element:nth-child(2) { transition-delay: 0.2s; }
.data-card.fade-in-element:nth-child(3) { transition-delay: 0.3s; }
.data-card.fade-in-element:nth-child(4) { transition-delay: 0.4s; }
.data-card.fade-in-element:nth-child(5) { transition-delay: 0.5s; }
.data-card.fade-in-element:nth-child(6) { transition-delay: 0.6s; }
.data-card.fade-in-element:nth-child(7) { transition-delay: 0.7s; }

/* Responsive Design */
@media (max-width: 768px) {
    .format-buttons {
        flex-direction: column;
    }
}