/* ==========================================================================
   AI Trends Timeline Page Styles
   ========================================================================== */

.trends-controls {
    max-width: 1200px;
    margin: 0 auto 1.5rem;
    padding: 0 1.5rem;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 1rem;
}

.time-range-group,
.provider-filter-group {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem 1.5rem;
    backdrop-filter: blur(12px);
}

.filter-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.time-range-btns {
    display: flex;
    gap: 0.4rem;
}

.range-btn {
    padding: 0.4rem 0.9rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

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

.range-btn.active {
    background: var(--primary-glow);
    border-color: var(--primary-color);
    color: var(--primary-color);
}

.provider-checkboxes {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.provider-checkbox-label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.35rem 0.75rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--card-bg-solid);
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--text-secondary);
    transition: all 0.2s ease;
    user-select: none;
}

.provider-checkbox-label:hover {
    border-color: var(--primary-color);
    color: var(--text-primary);
}

.provider-checkbox-label input[type="checkbox"] {
    accent-color: var(--primary-color);
    width: 14px;
    height: 14px;
}

.provider-checkbox-label.checked {
    border-color: var(--primary-color);
    background: var(--primary-glow);
    color: var(--text-primary);
}

.trends-chart-section {
    max-width: 1200px;
    margin: 0 auto 3rem;
    padding: 0 1.5rem;
}

.trends-chart-section .chart-container {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    backdrop-filter: blur(12px);
    min-height: 450px;
}

.trends-chart-section .chart-container canvas {
    width: 100% !important;
    height: 450px !important;
}

.chart-note {
    margin-top: 1rem;
    font-size: 0.78rem;
    color: var(--text-tertiary);
    text-align: center;
}

@media (max-width: 768px) {
    .trends-controls {
        grid-template-columns: 1fr;
    }
    .trends-chart-section .chart-container canvas {
        height: 300px !important;
    }
    .provider-checkbox-label {
        font-size: 0.75rem;
        padding: 0.3rem 0.6rem;
    }
}