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

body {
    display: flex;
    height: 100vh;
    font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    font-size: 14px;
    color: #1f2937;
}

/* ── Side panel ─────────────────────────────────────────────────────────────── */
#nav-panel {
    width: 290px;
    min-width: 250px;
    background: #fff;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.12);
    z-index: 1000;
    overflow-y: auto;
}

#back-to-site {
    font-size: 12px;
    font-weight: 600;
    color: #e91e63;
    text-decoration: none;
}
#back-to-site:hover { text-decoration: underline; }

#nav-title { font-size: 18px; font-weight: 700; color: #1a1a2e; }

.nav-row { display: flex; flex-direction: column; gap: 5px; position: relative; }

.nav-row label {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #6b7280;
    font-weight: 600;
}

.nav-row input,
.nav-row select {
    width: 100%;
    padding: 8px 10px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 14px;
    outline: none;
    transition: border-color 0.15s;
    background: #fff;
}

.nav-row input:focus,
.nav-row select:focus {
    border-color: #e91e63;
    box-shadow: 0 0 0 2px rgba(233, 30, 99, 0.15);
}

/* segmented toggle (Both / Escalator / Lift) */
.seg-toggle {
    display: flex;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    overflow: hidden;
}
.seg-btn {
    flex: 1;
    padding: 8px 6px;
    border: none;
    border-left: 1px solid #d1d5db;
    background: #fff;
    cursor: pointer;
    font-size: 12px;
    font-weight: 600;
    color: #4b5563;
    transition: background 0.12s, color 0.12s;
}
.seg-btn:first-child { border-left: none; }
.seg-btn:hover { background: #f3f4f6; }
.seg-btn.active { background: #e91e63; color: #fff; }

.input-with-btn { display: flex; gap: 6px; }
.input-with-btn input { flex: 1; }

.input-with-btn button {
    padding: 8px 10px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    background: #f9fafb;
    cursor: pointer;
    font-size: 16px;
    line-height: 1;
}
.input-with-btn button:hover { background: #e5e7eb; }

/* clearable field: input with a ✕ button to reset it */
.field-clearable { position: relative; flex: 1; }
.field-clearable input { width: 100%; padding-right: 30px; }
.clear-field {
    position: absolute; right: 6px; top: 50%; transform: translateY(-50%);
    border: none; background: transparent; cursor: pointer;
    font-size: 18px; line-height: 1; color: #9ca3af; padding: 0 4px; display: none;
}
.clear-field.show { display: block; }
.clear-field:hover { color: #4b5563; }

/* ── Autocomplete ───────────────────────────────────────────────────────────── */
.autocomplete-wrap { position: relative; }

.suggestions {
    position: absolute;
    top: calc(100% + 2px);
    left: 0; right: 0;
    background: #fff;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    max-height: 220px;
    overflow-y: auto;
    z-index: 2000;
    list-style: none;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.suggestions li {
    padding: 8px 12px;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 8px;
    font-size: 13px;
}
.suggestions li:hover, .suggestions li.active { background: #fce4ec; }

.suggestion-floor {
    font-size: 10px;
    color: #6b7280;
    background: #f3f4f6;
    padding: 2px 6px;
    border-radius: 3px;
    flex-shrink: 0;
}

/* ── Buttons ────────────────────────────────────────────────────────────────── */
.nav-actions { display: flex; gap: 8px; }

.nav-actions button {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
}
#navigateBtn { background: #e91e63; color: #fff; }
#navigateBtn:disabled { opacity: 0.4; cursor: not-allowed; }
#navigateBtn:not(:disabled):hover { background: #c2185b; }
#clearBtn { background: #f3f4f6; color: #374151; }
#clearBtn:hover { background: #e5e7eb; }

/* ── Route info + steps ─────────────────────────────────────────────────────── */
.route-info {
    background: #f0fdf4;
    border: 1px solid #86efac;
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 13px;
    color: #166534;
    line-height: 1.5;
}

.route-steps { list-style: none; display: flex; flex-direction: column; gap: 2px; }

.route-steps li {
    padding: 8px 10px;
    border-radius: 6px;
    font-size: 13px;
    cursor: pointer;
    display: flex;
    gap: 8px;
    align-items: flex-start;
    border: 1px solid transparent;
}
.route-steps li:hover { background: #f3f4f6; }
.route-steps li.active { background: #fce4ec; border-color: #f8bbd0; }

.step-icon { flex-shrink: 0; width: 18px; text-align: center; }
.step-floor { font-size: 10px; color: #6b7280; font-weight: 600; }
.step-transition { color: #b45309; font-weight: 600; }

/* ── Legend ─────────────────────────────────────────────────────────────────── */
.legend { margin-top: auto; padding-top: 10px; border-top: 1px solid #eee; }
.legend h4 { font-size: 10px; text-transform: uppercase; color: #9ca3af; margin-bottom: 6px; letter-spacing: 0.05em; }
.legend-row { display: flex; align-items: center; gap: 6px; font-size: 11px; color: #4b5563; margin-bottom: 3px; }
.legend-swatch { width: 12px; height: 12px; border-radius: 2px; border: 1px solid rgba(0,0,0,0.15); flex-shrink: 0; }

/* ── Map ────────────────────────────────────────────────────────────────────── */
#map { flex: 1; height: 100vh; background: #a6b0bf; position: relative; }

/* on-map floor selector buttons */
.floor-buttons {
    display: flex; flex-direction: column;
    background: #fff; border-radius: 8px; overflow: hidden;
    box-shadow: 0 1px 5px rgba(0, 0, 0, 0.3);
}
.floor-btn {
    width: 40px; height: 40px; border: none; background: #fff; cursor: pointer;
    font-size: 14px; font-weight: 700; color: #374151;
    border-bottom: 1px solid #eee; transition: background 0.12s, color 0.12s;
}
.floor-btn:last-child { border-bottom: none; }
.floor-btn:hover { background: #f3f4f6; }
.floor-btn.active { background: #e91e63; color: #fff; }

/* floor-change toast overlay */
.floor-toast {
    position: absolute; top: 16px; left: 50%; transform: translateX(-50%);
    z-index: 500; pointer-events: none;
    background: rgba(26, 26, 46, 0.85); color: #fff; font-weight: 700; font-size: 15px;
    padding: 8px 18px; border-radius: 20px;
    opacity: 0; transition: opacity 0.25s; box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
.floor-toast.show { opacity: 1; }

/* shop labels on the floorplan (permanent, zoom-gated) */
.shop-label {
    background: transparent; border: none; box-shadow: none; padding: 0;
    color: #243044; font-size: 10px; font-weight: 700;
    text-shadow: 0 0 3px #fff, 0 0 3px #fff, 0 0 3px #fff;
    white-space: nowrap;
}
.shop-label::before { display: none; }       /* hide tooltip pointer */
.hide-labels .shop-label { display: none; }   /* hide when zoomed out */

/* animated route flow (marching dashes travelling toward the destination) */
.route-flow {
    stroke-dasharray: 6 14;
    animation: route-flow 1s linear infinite;
}
@keyframes route-flow { from { stroke-dashoffset: 0; } to { stroke-dashoffset: -20; } }

/* tap-to-select popup */
.map-popup { min-width: 130px; }
.map-popup .popup-title { font-weight: 700; font-size: 13px; color: #1a1a2e; }
.map-popup .popup-sub { font-size: 11px; color: #6b7280; margin-bottom: 8px; }
.map-popup .popup-btns { display: flex; gap: 6px; }
.map-popup .popup-btns button {
    flex: 1; padding: 7px 8px; border: 1px solid #d1d5db; border-radius: 6px;
    background: #f9fafb; cursor: pointer; font-size: 12px; font-weight: 600; white-space: nowrap;
}
.map-popup .popup-btns button.primary { background: #e91e63; color: #fff; border-color: #e91e63; }
.map-popup .popup-btns button:hover { filter: brightness(0.96); }

/* route markers */
.map-pin {
    padding: 4px 8px; border-radius: 4px; color: #fff;
    font-size: 12px; font-weight: 600; white-space: nowrap;
    box-shadow: 0 1px 4px rgba(0,0,0,0.3);
}
.map-pin .dir-arrow { font-size: 16px; font-weight: 800; line-height: 1; vertical-align: -1px; }

/* ── QR overlay ─────────────────────────────────────────────────────────────── */
#qrOverlay {
    position: fixed; inset: 0;
    background: rgba(0, 0, 0, 0.65);
    z-index: 9999;
    display: flex; align-items: center; justify-content: center;
}
#qrModal {
    background: #fff; border-radius: 12px; padding: 20px;
    display: flex; flex-direction: column; align-items: center; gap: 14px;
    max-width: 360px; width: 90%;
}
#qrModal p { font-size: 14px; color: #6b7280; text-align: center; }
#qrVideo { width: 100%; border-radius: 8px; background: #000; max-height: 300px; object-fit: cover; }
#qrClose { padding: 8px 28px; border: 1px solid #d1d5db; border-radius: 6px; background: #f9fafb; cursor: pointer; font-size: 14px; }
#qrClose:hover { background: #e5e7eb; }

.hidden { display: none !important; }

/* ── Mobile: map on top, panel stacked below (map is NOT hidden behind the panel) ── */
@media (max-width: 640px) {
    body { flex-direction: column; }

    /* map fills the area above the panel */
    #map { order: -1; width: 100%; flex: 1 1 auto; height: auto; min-height: 0; }

    #nav-panel {
        position: static;
        width: 100%;
        min-width: 0;
        max-height: 48vh;
        border-radius: 16px 16px 0 0;
        box-shadow: 0 -3px 14px rgba(0, 0, 0, 0.2);
        padding: 8px 16px 16px;
        gap: 10px;
        z-index: 10;
    }

    /* drag-handle affordance */
    #nav-panel::before {
        content: "";
        align-self: center;
        width: 40px; height: 4px;
        border-radius: 2px;
        background: #d1d5db;
        margin-bottom: 4px;
        flex-shrink: 0;
    }

    #nav-title { font-size: 16px; }

    /* bigger touch targets */
    .nav-row input, .nav-row select { padding: 10px; font-size: 16px; }
    .nav-actions button { padding: 12px; }

    /* drop the legend on mobile to save vertical space */
    .legend { display: none; }

    /* suggestions open upward-friendly and scroll within the sheet */
    .suggestions { max-height: 160px; }
}