/* =====================================================
   NSW Transport Tracker - Minimal Design
   ===================================================== */

/* CSS Variables */
:root {
    --color-primary: #18181b;
    --color-bg: #fafafa;
    --color-card: #ffffff;
    --color-text: #18181b;
    --color-text-muted: #71717a;
    --color-border: #e4e4e7;
    --color-late: #dc2626;
    --color-early: #059669;
    --color-ontime: #10b981;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
    --radius: 6px;
}

/* Dark Theme */
body.dark-theme {
    --color-bg: #09090b;
    --color-card: #18181b;
    --color-text: #f4f4f5;
    --color-text-muted: #a1a1aa;
    --color-border: #27272a;
    --color-late: #ef4444;
    --color-early: #10b981;
    --color-ontime: #34d399;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
}

/* Dark Theme Map Tiles */
body.dark-theme .leaflet-tile-pane {
    filter: invert(100%) hue-rotate(180deg) brightness(95%) contrast(90%);
}

/* Theme Toggle Button */
.theme-toggle {
    position: absolute;
    top: 1.25rem;
    right: 2rem;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    padding: 0.4rem 0.6rem;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.2s;
    z-index: 10;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.5;
    font-size: 14px;
}

a {
    color: var(--color-text);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Header */
header {
    background: var(--color-primary);
    color: white;
    padding: 1.25rem 2rem;
    position: relative;
}

header h1 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.01em;
}

header .subtitle {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.8125rem;
    margin-top: 0.125rem;
}

/* Navigation Cards */
.nav-cards {
    display: flex;
    gap: 0.75rem;
    padding: 1.25rem;
    max-width: 1200px;
    margin: 0 auto;
    flex-wrap: wrap;
}

.nav-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.875rem;
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.15s, border-color 0.15s;
    text-decoration: none;
    color: var(--color-text);
    flex: 1;
    min-width: 160px;
}

.nav-card:hover {
    box-shadow: var(--shadow);
    border-color: #d4d4d8;
    text-decoration: none;
}

.nav-icon {
    font-size: 1.25rem;
}

.nav-label {
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.nav-count {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
}

.nav-card-bus,
.nav-card-train,
.nav-card-ferry {
    border-top: none;
}

.nav-card-bus .nav-count,
.nav-card-train .nav-count,
.nav-card-ferry .nav-count {
    color: var(--color-text);
}

/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.25rem 1.5rem;
}

/* Map Section */
.map-section {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 0.75rem;
}

.map-section h2 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.75rem;
}

#map {
    height: 400px;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
}

.map-legend {
    display: flex;
    gap: 1.25rem;
    margin-top: 0.625rem;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.375rem;
    font-size: 0.6875rem;
    color: var(--color-text-muted);
}

.legend-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.legend-dot.bus { background: #71717a; }
.legend-dot.train { background: #71717a; }
.legend-dot.ferry { background: #71717a; }

/* Info Section */
.info-section {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
}

.info-section h2 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.info-section p {
    margin-bottom: 0.375rem;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

.info-section a {
    color: var(--color-text);
    text-decoration: underline;
}

.last-updated {
    font-size: 0.6875rem;
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}

/* Footer */
footer {
    text-align: center;
    padding: 1.25rem;
    color: var(--color-text-muted);
    font-size: 0.6875rem;
    border-top: 1px solid var(--color-border);
    margin-top: 1rem;
}

footer a {
    color: var(--color-text-muted);
}

.footer-refresh {
    margin-top: 0.375rem;
    color: var(--color-text-muted);
}

/* Data Table */
.data-table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8125rem;
}

.data-table th,
.data-table td {
    padding: 0.625rem 0.875rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.data-table th {
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--color-bg);
    position: sticky;
    top: 0;
}

.data-table tbody tr:hover {
    background: #f4f4f5;
}

/* Dark Theme Table Hover */
body.dark-theme .data-table tbody tr:hover {
    background: #27272a;
}

.data-table td {
    color: var(--color-text);
}

/* Back Link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    margin-bottom: 0.75rem;
    font-size: 0.8125rem;
    color: var(--color-text-muted);
}

.back-link:hover {
    color: var(--color-text);
    text-decoration: none;
}

/* Page Header (for drill-down pages) */
.page-header {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 1rem;
    box-shadow: var(--shadow-sm);
    margin-bottom: 0.75rem;
}

.page-header h2 {
    font-size: 0.9375rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.page-header .count {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    font-weight: normal;
    margin-top: 0.25rem;
}

/* Responsive */
@media (max-width: 768px) {
    header {
        padding: 1rem;
    }
    
    .nav-cards {
        padding: 0.75rem;
        gap: 0.5rem;
    }
    
    .nav-card {
        padding: 0.75rem 1rem;
        min-width: 140px;
    }
    
    main {
        padding: 0 0.75rem 1rem;
    }
    
    #map {
        height: 280px;
    }
    
    .data-table th,
    .data-table td {
        padding: 0.5rem 0.625rem;
        font-size: 0.75rem;
    }
}

/* Loading State */
.loading {
    text-align: center;
    padding: 1.5rem;
    color: var(--color-text-muted);
    font-size: 0.8125rem;
}

.loading::after {
    content: '';
    display: inline-block;
    width: 14px;
    height: 14px;
    border: 2px solid var(--color-border);
    border-top-color: var(--color-text-muted);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-left: 0.5rem;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Error State */
.error {
    background: #fef2f2;
    color: var(--color-late);
    padding: 0.75rem;
    border-radius: var(--radius);
    text-align: center;
    font-size: 0.8125rem;
}

/* Delay Status - Minimal */
.delay-ontime {
    color: var(--color-ontime);
}

.delay-early {
    color: var(--color-early);
}

.delay-late {
    color: var(--color-late);
}

.delay-very-late {
    color: var(--color-late);
    font-weight: 500;
}

/* Delay badge for map popups */
.delay-badge {
    display: inline-block;
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.6875rem;
    font-weight: 500;
}

.delay-badge.ontime {
    background: #ecfdf5;
    color: var(--color-ontime);
}

.delay-badge.early {
    background: #ecfdf5;
    color: var(--color-early);
}

.delay-badge.late {
    background: #fef2f2;
    color: var(--color-late);
}

.delay-badge.very-late {
    background: #fef2f2;
    color: var(--color-late);
}