/* Tawaf Radar — dashboard styles */

/* ---------------------------------------------------------------------------
   Reset & Base
   --------------------------------------------------------------------------- */

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --bg-primary: #1a1a2e;
    --bg-card: #16213e;
    --bg-card-hover: #1a2744;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0b8;
    --text-muted: #6c6c80;
    --border: #2a2a4a;
    --shadow: rgba(0, 0, 0, 0.3);

    /* Density colors */
    --density-empty: #2ecc71;
    --density-low: #27ae60;
    --density-moderate: #f39c12;
    --density-busy: #e67e22;
    --density-packed: #e74c3c;
    --density-extreme: #c0392b;

    /* Freshness colors */
    --fresh: #2ecc71;
    --stale: #f39c12;
    --unavailable: #e74c3c;

    --font-stack: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --radius: 12px;
    --card-padding: 1.5rem;
}

html {
    font-size: 16px;
}

body {
    font-family: var(--font-stack);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

/* ---------------------------------------------------------------------------
   Layout
   --------------------------------------------------------------------------- */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem;
}

header {
    text-align: center;
    padding: 1.5rem 0 1rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
}

header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

header .subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
}

@media (min-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 1fr 1fr;
    }

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

@media (min-width: 1024px) {
    .dashboard-grid {
        grid-template-columns: 1fr 1fr 1fr;
    }
}

/* ---------------------------------------------------------------------------
   Cards
   --------------------------------------------------------------------------- */

.card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: var(--card-padding);
    box-shadow: 0 4px 16px var(--shadow);
    border: 1px solid var(--border);
    transition: background 0.2s ease;
}

.card:hover {
    background: var(--bg-card-hover);
}

.card__title {
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-weight: 600;
}

/* ---------------------------------------------------------------------------
   Current State Card
   --------------------------------------------------------------------------- */

.current-state {
    text-align: center;
}

.density-display {
    margin: 1rem 0;
}

.density-number {
    font-size: 5rem;
    font-weight: 800;
    line-height: 1;
}

.density-label {
    font-size: 1.5rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-top: 0.25rem;
}

.freshness-badge {
    display: inline-block;
    padding: 0.3rem 1rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin: 0.75rem 0;
}

.freshness-badge--fresh {
    background: rgba(46, 204, 113, 0.2);
    color: var(--fresh);
    border: 1px solid rgba(46, 204, 113, 0.3);
}

.freshness-badge--stale {
    background: rgba(243, 156, 18, 0.2);
    color: var(--stale);
    border: 1px solid rgba(243, 156, 18, 0.3);
}

.freshness-badge--unavailable {
    background: rgba(231, 76, 60, 0.2);
    color: var(--unavailable);
    border: 1px solid rgba(231, 76, 60, 0.3);
}

.last-updated {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

.degraded-message {
    background: rgba(231, 76, 60, 0.1);
    border: 1px solid rgba(231, 76, 60, 0.2);
    border-radius: 8px;
    padding: 0.75rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--unavailable);
}

/* ---------------------------------------------------------------------------
   Frame Card
   --------------------------------------------------------------------------- */

.frame-container {
    text-align: center;
}

.frame-container img {
    max-width: 100%;
    border-radius: 8px;
    border: 1px solid var(--border);
}

.frame-container .frame-note {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: 0.5rem;
    font-style: italic;
}

/* ---------------------------------------------------------------------------
   Chart Card
   --------------------------------------------------------------------------- */

.chart-container {
    position: relative;
    width: 100%;
    height: 300px;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

/* ---------------------------------------------------------------------------
   Heatmap
   --------------------------------------------------------------------------- */

.heatmap-wrapper {
    overflow-x: auto;
}

.heatmap-grid {
    display: grid;
    grid-template-columns: 80px repeat(24, 1fr);
    gap: 2px;
    font-size: 0.7rem;
    min-width: 600px;
}

.heatmap-header {
    color: var(--text-muted);
    text-align: center;
    padding: 4px 2px;
    font-size: 0.65rem;
}

.heatmap-day-label {
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    padding-right: 8px;
    font-weight: 500;
    font-size: 0.75rem;
}

.heatmap-cell {
    aspect-ratio: 1;
    border-radius: 3px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.6rem;
    color: rgba(255, 255, 255, 0.7);
    min-height: 24px;
    transition: transform 0.15s ease;
}

.heatmap-cell:hover {
    transform: scale(1.2);
    z-index: 1;
}

.heatmap-cell--empty-slot {
    background: rgba(255, 255, 255, 0.03);
}

/* Density color classes */
.density-color-empty { color: var(--density-empty); }
.density-color-low { color: var(--density-low); }
.density-color-moderate { color: var(--density-moderate); }
.density-color-busy { color: var(--density-busy); }
.density-color-packed { color: var(--density-packed); }
.density-color-extreme { color: var(--density-extreme); }

.bg-empty { background: var(--density-empty); }
.bg-low { background: var(--density-low); }
.bg-moderate { background: var(--density-moderate); }
.bg-busy { background: var(--density-busy); }
.bg-packed { background: var(--density-packed); }
.bg-extreme { background: var(--density-extreme); }

/* ---------------------------------------------------------------------------
   Operational Status
   --------------------------------------------------------------------------- */

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

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

.stat-value {
    font-size: 1.75rem;
    font-weight: 700;
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-top: 0.25rem;
}

.last-attempt {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.last-attempt .status-ok {
    color: var(--fresh);
    font-weight: 600;
}

.last-attempt .status-error {
    color: var(--unavailable);
    font-weight: 600;
}

/* ---------------------------------------------------------------------------
   Loading & Error States
   --------------------------------------------------------------------------- */

.loading {
    color: var(--text-muted);
    text-align: center;
    padding: 2rem;
    font-style: italic;
}

.error-state {
    color: var(--unavailable);
    text-align: center;
    padding: 1rem;
    font-size: 0.85rem;
}

/* ---------------------------------------------------------------------------
   Footer
   --------------------------------------------------------------------------- */

footer {
    text-align: center;
    padding: 2rem 0 1rem;
    color: var(--text-muted);
    font-size: 0.75rem;
    border-top: 1px solid var(--border);
    margin-top: 2rem;
}

/* ---------------------------------------------------------------------------
   Responsive
   --------------------------------------------------------------------------- */

@media (max-width: 480px) {
    .container {
        padding: 0.75rem;
    }

    .density-number {
        font-size: 3.5rem;
    }

    .density-label {
        font-size: 1.2rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    .stat-value {
        font-size: 1.25rem;
    }

    .card {
        padding: 1rem;
    }

    header h1 {
        font-size: 1.35rem;
    }
}