/* ============================================
   INSIGHTS PAGE - Theme-Aware Redesign
   Uses Bootstrap CSS variables for Bootswatch compatibility
   ============================================ */

.insights-page {
    padding: 2rem 0;
    min-height: calc(100vh - 56px);
}

/* Page Header */
.insights-header {
    margin-bottom: 2.5rem;
}

.insights-header h1 {
    font-weight: 700;
    font-size: 2.25rem;
    color: var(--bs-emphasis-color, var(--bs-body-color));
    margin-bottom: 0.5rem;
}

.insights-header .lead {
    color: var(--bs-secondary-color, var(--bs-body-color));
    opacity: 0.75;
}

/* Stats Cards - Top Row */
.stat-card {
    background: var(--bs-tertiary-bg, var(--bs-body-bg));
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    height: 100%;
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 0.5rem 1.5rem rgba(0, 0, 0, 0.1);
}

.stat-card .stat-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: 1rem;
}

.stat-card .stat-icon.primary {
    background: rgba(var(--bs-primary-rgb), 0.15);
    color: var(--bs-primary);
}

.stat-card .stat-icon.success {
    background: rgba(var(--bs-success-rgb), 0.15);
    color: var(--bs-success);
}

.stat-card .stat-icon.info {
    background: rgba(var(--bs-info-rgb), 0.15);
    color: var(--bs-info);
}

.stat-card .stat-icon.warning {
    background: rgba(var(--bs-warning-rgb), 0.15);
    color: var(--bs-warning);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--bs-emphasis-color, var(--bs-body-color));
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.stat-card .stat-label {
    font-size: 0.8125rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--bs-secondary-color, var(--bs-body-color));
    opacity: 0.7;
    font-weight: 600;
}

/* Section Cards */
.section-card {
    background: var(--bs-body-bg);
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.section-card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--bs-border-color);
    background: var(--bs-tertiary-bg, var(--bs-body-bg));
}

.section-card-header h3 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--bs-emphasis-color, var(--bs-body-color));
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.section-card-header h3 i {
    color: var(--bs-primary);
    font-size: 1.1rem;
}

.section-card-body {
    padding: 1.5rem;
    flex: 1;
}

/* Chart Container */
.chart-container {
    position: relative;
    height: 280px;
    width: 100%;
}

.chart-container.tall {
    height: 350px;
}

/* Recently Read Grid */
.recently-read-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: 0.5rem;
}

.recently-read-item {
    cursor: pointer;
    transition: transform 0.2s ease;
    text-decoration: none;
    color: inherit;
}

.recently-read-item:hover {
    transform: translateY(-4px);
}

.recently-read-item:hover .recently-read-name {
    color: var(--bs-primary);
}

.recently-read-thumbnail {
    width: 100%;
    aspect-ratio: 2/3;
    object-fit: cover;
    border-radius: 0.5rem;
    background: var(--bs-tertiary-bg, var(--bs-secondary-bg));
    border: 1px solid var(--bs-border-color);
}

.recently-read-name {
    font-size: 0.75rem;
    font-weight: 500;
    margin-top: 0.5rem;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--bs-body-color);
    transition: color 0.2s ease;
}

.recently-read-date {
    font-size: 0.6875rem;
    color: var(--bs-secondary-color, var(--bs-body-color));
    opacity: 0.65;
}

/* Reading Heatmap */
.reading-heatmap {
    overflow-x: auto;
}

.heatmap-grid {
    display: inline-block;
    min-width: 100%;
}

.heatmap-row {
    display: grid;
    grid-template-columns: 40px repeat(12, 1fr);
    gap: 2px;
    margin-bottom: 2px;
}

.heatmap-year {
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--bs-secondary-color);
    display: flex;
    align-items: center;
}

.heatmap-month-label {
    font-size: 0.65rem;
    text-align: center;
    color: var(--bs-secondary-color);
    padding-bottom: 2px;
}

.heatmap-cell {
    width: 100%;
    height: 24px;
    border-radius: 2px;
    background-color: var(--bs-tertiary-bg, #e9ecef);
    border: 1px solid var(--bs-border-color);
    cursor: pointer;
    transition: transform 0.1s ease, background-color 0.2s ease;
    position: relative;
}

.heatmap-cell::after {
    content: '';
    position: absolute;
    inset: 0;
    background-color: var(--bs-primary);
    opacity: var(--intensity, 0);
    border-radius: inherit;
}

.heatmap-cell:hover {
    transform: scale(1.15);
    z-index: 1;
}

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--bs-secondary-color, var(--bs-body-color));
}

.empty-state i {
    font-size: 2.5rem;
    opacity: 0.3;
    margin-bottom: 1rem;
}

/* Quick Stats Pills (alternative small stat display) */
.quick-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.quick-stat-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: var(--bs-tertiary-bg, var(--bs-body-bg));
    border: 1px solid var(--bs-border-color);
    border-radius: 2rem;
    font-size: 0.875rem;
}

.quick-stat-pill i {
    color: var(--bs-primary);
}

.quick-stat-pill .value {
    font-weight: 600;
    color: var(--bs-emphasis-color, var(--bs-body-color));
}

/* Responsive adjustments */
@media (max-width: 767.98px) {
    .insights-page {
        padding: 1rem 0;
    }

    .insights-header h1 {
        font-size: 1.75rem;
    }

    .stat-card {
        padding: 1.25rem;
    }

    .stat-card .stat-value {
        font-size: 1.5rem;
    }

    .chart-container {
        height: 220px;
    }

    .chart-container.tall {
        height: 280px;
    }

    .recently-read-grid {
        grid-template-columns: repeat(auto-fill, minmax(60px, 1fr));
        gap: 0.5rem;
    }
}

/* Chart.js tooltip theme override */
.chartjs-tooltip {
    background: var(--bs-body-bg) !important;
    border: 1px solid var(--bs-border-color) !important;
    color: var(--bs-body-color) !important;
}

/* Wrapped Carousel Controls */
#wrappedCarousel .carousel-control-prev-icon,
#wrappedCarousel .carousel-control-next-icon {
    background-color: var(--bs-primary);
    /* Use theme primary color */
    border-radius: 50%;
    width: 3rem;
    height: 3rem;
    background-size: 50%;
    /* Make the chevron slightly smaller inside the circle */
    background-position: center;
    background-repeat: no-repeat;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    /* Drop shadow for visibility */
}

#wrappedCarousel .carousel-indicators {
    margin-bottom: 0rem;
}

#wrappedCarousel .carousel-indicators button {
    background-color: var(--bs-primary);
    opacity: 0.3;
    height: 6px;
    width: 20px;
    border-radius: 4px;
    border: 1px solid rgba(0, 0, 0, 0.1);
}

#wrappedCarousel .carousel-indicators button.active {
    opacity: 1;
    width: 30px;
}

/* Reading Trends Section */
.trends-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.trend-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem;
    border-radius: 6px;
    transition: background-color 0.2s;
    color: inherit;
}

.trend-item:hover {
    background-color: var(--bs-secondary-bg, rgba(0, 0, 0, 0.05));
    color: inherit;
}

a.trend-item {
    cursor: pointer;
}

.trend-item .d-flex {
    font-size: 0.875rem;
}

.trend-item .text-truncate {
    max-width: 200px;
    color: var(--bs-emphasis-color, var(--bs-body-color));
    font-weight: 500;
}

.trend-item .text-muted {
    font-size: 0.8125rem;
    color: var(--bs-secondary-color) !important;
}

.trend-item .progress {
    height: 6px;
    background: var(--bs-tertiary-bg, var(--bs-secondary-bg));
    border-radius: 3px;
}

.trend-item .progress-bar {
    border-radius: 3px;
}

/* Trends card specific styling */
.section-card .trends-list {
    max-height: 450px;
    overflow-y: auto;
}

/* Custom scrollbar for trends lists */
.trends-list::-webkit-scrollbar {
    width: 4px;
}

.trends-list::-webkit-scrollbar-track {
    background: var(--bs-tertiary-bg, transparent);
    border-radius: 2px;
}

.trends-list::-webkit-scrollbar-thumb {
    background: var(--bs-border-color);
    border-radius: 2px;
}

.trends-list::-webkit-scrollbar-thumb:hover {
    background: var(--bs-secondary-color);
}