/* =============================================================================
   Statistics Page Styles
   Professional data visualization design
   ============================================================================= */

/* =============================================================================
   Page Hero Section
   ============================================================================= */
.page-hero {
    background: linear-gradient(135deg, var(--brand-primary) 0%, #2a5a8f 100%);
    padding: var(--space-12) var(--space-8);
    text-align: center;
    position: relative;
    overflow: hidden;
}

.page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: 
        radial-gradient(ellipse at 20% 50%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 50%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.page-hero::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}

.page-hero-inner {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin: 0 0 var(--space-3) 0;
    letter-spacing: -0.03em;
}

.page-subtitle {
    font-size: var(--text-lg);
    color: rgba(255, 255, 255, 0.8);
    margin: 0;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* =============================================================================
   Metrics Section
   ============================================================================= */
.metrics-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-8) var(--space-6);
    margin-top: -40px;
    position: relative;
    z-index: 10;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-5);
}

.metric-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--space-6);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    box-shadow: 
        0 4px 6px -1px rgba(0, 0, 0, 0.1),
        0 2px 4px -2px rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.metric-card:hover {
    transform: translateY(-2px);
    box-shadow: 
        0 10px 15px -3px rgba(0, 0, 0, 0.1),
        0 4px 6px -4px rgba(0, 0, 0, 0.1);
}

.metric-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
}

.metric-card.metric-total::before { background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary)); }
.metric-card.metric-approved::before { background: var(--stripe-approved); }
.metric-card.metric-applications::before { background: var(--stripe-application); }
.metric-card.metric-reports::before { background: var(--stripe-report); }

.metric-icon {
    width: 56px;
    height: 56px;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
}

.metric-total .metric-icon { background: rgba(26, 58, 92, 0.1); color: var(--brand-primary); }
.metric-approved .metric-icon { background: rgba(45, 125, 95, 0.1); color: var(--stripe-approved); }
.metric-applications .metric-icon { background: rgba(154, 123, 79, 0.1); color: var(--stripe-application); }
.metric-reports .metric-icon { background: rgba(74, 126, 176, 0.1); color: var(--stripe-report); }

.metric-content {
    flex: 1;
}

.metric-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.03em;
    line-height: 1.1;
    font-variant-numeric: tabular-nums;
}

.metric-label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
    margin-top: var(--space-1);
}

.metric-trend {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    font-size: var(--text-sm);
    font-weight: 600;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.metric-trend.positive {
    color: var(--green-text);
    background: var(--green-bg);
}

.metric-trend.negative {
    color: var(--red);
    background: var(--red-bg);
}

.metric-badge {
    display: inline-flex;
    align-items: center;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: var(--space-1) var(--space-2);
    border-radius: var(--radius-sm);
}

.metric-badge.approved { color: var(--green-text); background: var(--green-bg); }
.metric-badge.pending { color: var(--orange-text); background: var(--orange-bg); }
.metric-badge.reports { color: var(--blue-text); background: var(--blue-bg); }

/* =============================================================================
   Charts Section
   ============================================================================= */
.charts-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-6) var(--space-8);
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
}

.chart-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
    box-shadow: var(--shadow-card);
}

.chart-card.chart-wide {
    grid-column: 1 / -1;
}

.chart-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.chart-title {
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0;
}

.chart-controls {
    display: flex;
    gap: var(--space-1);
    background: var(--surface-secondary);
    padding: var(--space-1);
    border-radius: var(--radius-sm);
}

.chart-btn {
    padding: var(--space-2) var(--space-3);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-tertiary);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: inherit;
}

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

.chart-btn.active {
    background: var(--surface);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.chart-select {
    padding: var(--space-2) var(--space-3);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: var(--text-sm);
    font-family: inherit;
    background: var(--surface);
    color: var(--text-primary);
    cursor: pointer;
}

.chart-body {
    padding: var(--space-5) var(--space-6);
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-body canvas {
    max-width: 100%;
    max-height: 300px;
}

.chart-donut-container {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.chart-donut-container canvas {
    max-height: 220px;
}

.donut-center {
    position: absolute;
    text-align: center;
    pointer-events: none;
}

.donut-value {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

.donut-label {
    font-size: var(--text-sm);
    color: var(--text-tertiary);
}

.chart-legend {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    padding: 0 var(--space-6) var(--space-5);
    justify-content: center;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.legend-color {
    width: 12px;
    height: 12px;
    border-radius: var(--radius-sm);
}

/* =============================================================================
   Geographic Section
   ============================================================================= */
.geo-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: var(--space-8) var(--space-8);
}

.section-header {
    text-align: center;
    margin-bottom: var(--space-8);
}

.section-title {
    font-size: var(--text-xl);
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 var(--space-2) 0;
}

.section-subtitle {
    font-size: var(--text-base);
    color: var(--text-tertiary);
    margin: 0;
}

.fylke-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: var(--space-4);
}

.fylke-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--space-4) var(--space-5);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-fast);
}

.fylke-card:hover {
    border-color: var(--border-strong);
    background: var(--surface-secondary);
}

.fylke-name {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
}

.fylke-count {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--brand-primary);
    font-variant-numeric: tabular-nums;
}

.fylke-bar {
    margin-top: var(--space-2);
    height: 4px;
    background: var(--surface-secondary);
    border-radius: 2px;
    overflow: hidden;
}

.fylke-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--brand-primary), var(--brand-secondary));
    border-radius: 2px;
    transition: width 0.5s ease;
}

/* =============================================================================
   Activity Section
   ============================================================================= */
.activity-section {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-8) var(--space-8);
}

.activity-container {
    background: var(--surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    overflow: hidden;
}

.activity-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-5) var(--space-6);
    border-bottom: 1px solid var(--border);
}

.activity-header .section-title {
    margin: 0;
}

.activity-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 var(--space-2);
    background: var(--accent-light);
    color: var(--accent);
    border-radius: var(--radius-full);
    font-size: var(--text-xs);
    font-weight: 600;
}

.activity-list {
    max-height: 400px;
    overflow-y: auto;
}

.activity-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-4);
    padding: var(--space-4) var(--space-6);
    border-bottom: 1px solid var(--border);
    transition: background var(--transition-fast);
}

.activity-item:last-child {
    border-bottom: none;
}

.activity-item:hover {
    background: var(--surface-secondary);
}

.activity-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-top: 6px;
    flex-shrink: 0;
}

.activity-dot.approved { background: var(--stripe-approved); }
.activity-dot.application { background: var(--stripe-application); }
.activity-dot.report { background: var(--stripe-report); }

.activity-content {
    flex: 1;
    min-width: 0;
}

.activity-title {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--space-1);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.activity-meta {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    font-size: var(--text-xs);
    color: var(--text-tertiary);
}

.activity-meta span {
    display: flex;
    align-items: center;
    gap: var(--space-1);
}

.activity-time {
    font-size: var(--text-xs);
    color: var(--text-quaternary);
    white-space: nowrap;
}

/* =============================================================================
   Data Quality Section
   ============================================================================= */
.quality-section {
    background: var(--surface-secondary);
    padding: var(--space-10) var(--space-8);
}

.quality-container {
    max-width: 1200px;
    margin: 0 auto;
}

.quality-container .section-title {
    text-align: center;
    margin-bottom: var(--space-8);
}

.quality-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-6);
}

.quality-item {
    text-align: center;
}

.quality-ring {
    width: 120px;
    height: 120px;
    position: relative;
    margin: 0 auto var(--space-4);
}

.quality-ring svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.quality-ring-bg {
    fill: none;
    stroke: var(--border);
    stroke-width: 3;
}

.quality-ring-fill {
    fill: none;
    stroke-width: 3;
    stroke-linecap: round;
    transition: stroke-dasharray 1s ease;
}

.kommuner-ring { stroke: var(--stripe-approved); }
.pdf-ring { stroke: var(--stripe-application); }
.fresh-ring { stroke: var(--brand-secondary); }
.years-ring { stroke: var(--stripe-report); }

.quality-ring-value {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: var(--text-xl);
    font-weight: 700;
    color: var(--text-primary);
}

.quality-label {
    font-size: var(--text-sm);
    color: var(--text-secondary);
    font-weight: 500;
}

/* =============================================================================
   Loading States
   ============================================================================= */
.loading-card .spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--brand-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 0 auto var(--space-4);
}

.chart-loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--space-3);
    color: var(--text-tertiary);
    font-size: var(--text-sm);
}

.chart-loading .spinner {
    width: 32px;
    height: 32px;
    border: 3px solid var(--border);
    border-top-color: var(--brand-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Loading skeleton */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--surface-secondary) 0%,
        var(--surface) 50%,
        var(--surface-secondary) 100%
    );
    background-size: 200% 100%;
    animation: skeleton-shimmer 1.5s ease-in-out infinite;
    border-radius: var(--radius-sm);
}

@keyframes skeleton-shimmer {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* =============================================================================
   Responsive Design
   ============================================================================= */
@media (max-width: 1024px) {
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-card.chart-wide {
        grid-column: 1;
    }
    
    .quality-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .page-hero {
        padding: var(--space-8) var(--space-4);
    }
    
    .page-title {
        font-size: 1.75rem;
    }
    
    .metrics-section {
        padding: var(--space-4);
        margin-top: -24px;
    }
    
    .metrics-grid {
        grid-template-columns: 1fr;
        gap: var(--space-3);
    }
    
    .metric-card {
        flex-direction: row;
        align-items: center;
        padding: var(--space-4);
    }
    
    .metric-icon {
        width: 48px;
        height: 48px;
    }
    
    .metric-value {
        font-size: 1.5rem;
    }
    
    .charts-section,
    .geo-section,
    .activity-section {
        padding: var(--space-4);
    }
    
    .chart-body {
        padding: var(--space-4);
        min-height: 250px;
    }
    
    .fylke-grid {
        grid-template-columns: 1fr;
    }
    
    .quality-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-4);
    }
    
    .quality-ring {
        width: 100px;
        height: 100px;
    }
}

@media (max-width: 480px) {
    .quality-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .chart-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--space-3);
    }
    
    .chart-controls {
        width: 100%;
    }
    
    .chart-btn {
        flex: 1;
        text-align: center;
    }
}

/* =============================================================================
   Navigation Link Styles (for header)
   ============================================================================= */
.header-nav .nav-item {
    text-decoration: none;
}

.header-nav .nav-item:hover {
    opacity: 0.9;
}