/* ═══════════════════════════════════════════════════════════════════════
   network.css — Route Planner / Redlands GIS product styles
   ═══════════════════════════════════════════════════════════════════════ */

/* ── Page shell ──────────────────────────────────────────────────────── */
.network-page {
    display: flex;
    flex-direction: column;
    height: calc(100vh - 62px); /* subtract navbar */
    overflow: hidden;
    background: var(--background, #f8fafc);
    color: var(--text, #1a202c);
}

.network-hero {
    background: linear-gradient(135deg, rgba(26, 54, 93, 0.10), rgba(56, 161, 105, 0.12));
    border-bottom: 1px solid var(--border, #e2e8f0);
    flex-shrink: 0;
}

.network-shell {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ── Side panel ──────────────────────────────────────────────────────── */
.network-panel {
    width: 320px;
    min-width: 280px;
    max-width: 340px;
    display: flex;
    flex-direction: column;
    background: var(--surface, #ffffff);
    border-right: 1px solid var(--border, #e2e8f0);
    overflow-y: auto;
    flex-shrink: 0;
}

.panel-section {
    padding: 0.75rem 1rem 0.5rem;
    border-bottom: 1px solid var(--border, #e2e8f0);
}

.panel-section-header {
    display: flex;
    align-items: center;
    margin-bottom: 0.5rem;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted, #64748b);
}

.panel-body {
    padding: 0;
}

.hint-text {
    font-size: 0.75rem;
    color: var(--text-muted, #64748b);
    margin-bottom: 0;
}

.panel-footer {
    margin-top: auto;
    padding: 0.75rem 1rem;
    border-top: 1px solid var(--border, #e2e8f0);
    display: flex;
    align-items: center;
    font-size: 0.8rem;
    flex-shrink: 0;
}

/* ── Destination chip ────────────────────────────────────────────────── */
.destination-chip {
    display: inline-flex;
    align-items: center;
    background: rgba(25, 135, 84, 0.12);
    color: #198754;
    border: 1px solid rgba(25, 135, 84, 0.3);
    border-radius: 999px;
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    font-weight: 500;
}

/* ── KPI grid ────────────────────────────────────────────────────────── */
.kpi-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.5rem;
}

.kpi-tile {
    background: var(--background, #f8fafc);
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 0.5rem;
    padding: 0.5rem 0.6rem;
    text-align: center;
}

.kpi-val {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--accent, #38a169);
    line-height: 1.2;
}

.kpi-label {
    font-size: 0.7rem;
    color: var(--text-muted, #64748b);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    margin-top: 0.1rem;
}

/* ── Turn-by-turn list ───────────────────────────────────────────────── */
.route-steps-list {
    padding-left: 1.25rem;
    margin-bottom: 0;
    max-height: 220px;
    overflow-y: auto;
}

.route-steps-list li {
    font-size: 0.78rem;
    color: var(--text, #1a202c);
    padding: 0.2rem 0;
    border-bottom: 1px solid var(--border, #e2e8f0);
}

.route-steps-list li:last-child {
    border-bottom: none;
}

/* ── Map container ───────────────────────────────────────────────────── */
.network-map-container {
    flex: 1;
    position: relative;
    overflow: hidden;
}

.network-map {
    width: 100%;
    height: 100%;
    z-index: 1;
}

/* ── Map overlay hint ────────────────────────────────────────────────── */
.map-click-hint {
    position: absolute;
    top: 0.75rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 500;
    background: rgba(0, 0, 0, 0.65);
    color: #fff;
    font-size: 0.78rem;
    padding: 0.3rem 0.8rem;
    border-radius: 999px;
    pointer-events: none;
    transition: opacity 0.3s;
    white-space: nowrap;
}

.map-click-hint.d-none {
    opacity: 0;
}

/* ── Leaflet override: route polyline pulse ──────────────────────────── */
.network-route-line {
    stroke: #2563eb;
    stroke-width: 5;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
    filter: drop-shadow(0 0 4px rgba(37, 99, 235, 0.55));
}

/* ── Responsive collapse ────────────────────────────────────────────── */
@media (max-width: 768px) {
    .network-page {
        height: auto;
        overflow: visible;
    }

    .network-shell {
        flex-direction: column;
        overflow: visible;
    }

    .network-panel {
        width: 100%;
        max-width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--border, #e2e8f0);
        overflow-y: visible;
        max-height: none;
    }

    .network-map-container {
        height: 55vh;
        flex: none;
    }
}

/* Search-space legend swatches (explored-node overlay) */
.explored-swatch {
    display: inline-block;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    margin-left: 4px;
    vertical-align: middle;
    opacity: 0.7;
}
.explored-swatch-astar { background: #0d9488; }
.explored-swatch-dijkstra { background: #f59e0b; }