/* ── Reset & base ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --blue-brand:   #5aa8d8;
    --blue-deep:    #1e4a72;
    --blue-light:   #7ec0e8;
    --blue-glow:    #b8ddf0;
    --accent:       #5aa8d8;
    --accent-dim:   rgba(90, 168, 216, 0.12);
    --surface:      rgba(255, 255, 255, 0.85);
    --surface-2:    rgba(90, 168, 216, 0.07);
    --border:       rgba(90, 168, 216, 0.28);
    --text-primary: #1a2e3d;
    --text-muted:   #5a7a92;
    --text-dim:     #a8c4d4;
    --font-ui:      'DM Sans', sans-serif;
    --font-mono:    'DM Mono', monospace;
    --header-h:     58px;
    --radius:       10px;
}

html, body {
    height: 100%;
    width: 100%;
    overflow: hidden;
    font-family: var(--font-ui);
    color: var(--text-primary);
}

body {
    background:
            radial-gradient(ellipse 80% 60% at 15% -10%, rgba(90,168,216,0.22) 0%, transparent 60%),
            radial-gradient(ellipse 60% 50% at 90% 110%, rgba(90,168,216,0.14) 0%, transparent 55%),
            linear-gradient(160deg, #d8eef8 0%, #eaf5fb 45%, #f4f9fd 100%);
}

/* ── Header ────────────────────────────────────────────────────── */
.header {
    height: var(--header-h);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 16px;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    position: relative;
    z-index: 10;
    box-shadow: 0 1px 16px rgba(90,168,216,0.12);
}

.logo {
    height: 28px;
    object-fit: contain;
    flex-shrink: 0;
}

.header-center {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 1;
}

.ws-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-dim);
    flex-shrink: 0;
    transition: background 0.4s;
}
.ws-dot.connected    { background: #22b35a; box-shadow: 0 0 6px #22b35a88; }
.ws-dot.connecting   { background: #f5a623; animation: pulse 1.2s ease-in-out infinite; }
.ws-dot.disconnected { background: #e84040; }

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0.35; }
}

.ws-label {
    font-size: 11px;
    font-family: var(--font-mono);
    color: var(--text-muted);
    letter-spacing: 0.04em;
}

/* ── Layout ────────────────────────────────────────────────────── */
.layout {
    display: flex;
    height: calc(100vh - var(--header-h));
    overflow: hidden;
}

.map-pane {
    flex: 0 0 70%;
    position: relative;
}

#map { width: 100%; height: 100%; }

/* ── Side panel ────────────────────────────────────────────────── */
.side-pane {
    flex: 0 0 30%;
    display: flex;
    flex-direction: column;
    background: rgba(255, 255, 255, 0.72);
    backdrop-filter: blur(18px);
    border-left: 1px solid var(--border);
    overflow: hidden;
    position: relative;
    box-shadow: -2px 0 24px rgba(90,168,216,0.08);
}

.panel-view {
    display: none;
    flex-direction: column;
    height: 100%;
    animation: fadeSlideIn 0.22s ease;
}
.panel-view.active { display: flex; }

@keyframes fadeSlideIn {
    from { opacity: 0; transform: translateX(12px); }
    to   { opacity: 1; transform: translateX(0); }
}

.panel-heading {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 16px 20px 12px;
    border-bottom: 1px solid var(--border);
    flex-shrink: 0;
}

.panel-title {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--text-muted);
    flex: 1;
}

.device-count {
    font-family: var(--font-mono);
    font-size: 11px;
    background: var(--accent-dim);
    color: var(--blue-deep);
    border: 1px solid rgba(90,168,216,0.35);
    border-radius: 20px;
    padding: 1px 9px;
    min-width: 28px;
    text-align: center;
}

.back-btn {
    background: none;
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text-muted);
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 11px;
    padding: 4px 10px;
    transition: border-color 0.2s, color 0.2s;
}
.back-btn:hover { border-color: var(--accent); color: var(--blue-deep); }

/* ── Device list ───────────────────────────────────────────────── */
.device-list {
    list-style: none;
    flex: 1;
    overflow-y: auto;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.device-list::-webkit-scrollbar      { width: 4px; }
.device-list::-webkit-scrollbar-track { background: transparent; }
.device-list::-webkit-scrollbar-thumb { background: var(--blue-glow); border-radius: 4px; }

.device-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 11px 14px;
    border-radius: var(--radius);
    background: rgba(255,255,255,0.72);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.18s, border-color 0.18s, box-shadow 0.18s, transform 0.12s;
    animation: itemIn 0.25s ease both;
    box-shadow: 0 1px 4px rgba(90,168,216,0.07);
}

@keyframes itemIn {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.device-item:hover {
    background: rgba(255,255,255,0.96);
    border-color: var(--accent);
    box-shadow: 0 2px 12px rgba(90,168,216,0.16);
}

.device-item.active {
    background: rgba(90,168,216,0.10);
    border-color: var(--accent);
    box-shadow: 0 2px 12px rgba(90,168,216,0.18);
}

.device-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent);
    flex-shrink: 0;
    box-shadow: 0 0 5px rgba(90,168,216,0.6);
    animation: dotPulse 2.5s ease-in-out infinite;
}

@keyframes dotPulse {
    0%, 100% { box-shadow: 0 0 4px rgba(90,168,216,0.5); }
    50%       { box-shadow: 0 0 10px rgba(90,168,216,0.9); }
}

.device-info { flex: 1; min-width: 0; }

.device-name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.device-meta {
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.device-arrow {
    font-size: 11px;
    color: var(--text-dim);
    flex-shrink: 0;
    transition: color 0.18s, transform 0.18s;
}
.device-item:hover .device-arrow { color: var(--accent); transform: translateX(2px); }

/* ── Device card ───────────────────────────────────────────────── */
.device-card {
    margin: 12px 14px 0;
    padding: 12px 14px;
    background: rgba(90,168,216,0.08);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    flex-shrink: 0;
}
.device-card .dc-name  { font-size: 14px; font-weight: 600; color: var(--text-primary); }
.device-card .dc-uuid  { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); margin-top: 3px; word-break: break-all; }
.device-card .dc-node  { font-family: var(--font-mono); font-size: 10px; color: var(--blue-deep); margin-top: 2px; }

/* ── Fix list ──────────────────────────────────────────────────── */
.fix-list {
    list-style: none;
    flex: 1;
    overflow-y: auto;
    padding: 10px 12px;
    display: flex;
    flex-direction: column;
    gap: 5px;
    margin-top: 10px;
}

.fix-list::-webkit-scrollbar      { width: 4px; }
.fix-list::-webkit-scrollbar-track { background: transparent; }
.fix-list::-webkit-scrollbar-thumb { background: var(--blue-glow); border-radius: 4px; }

.fix-item {
    padding: 10px 13px;
    border-radius: 8px;
    background: rgba(255,255,255,0.72);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, box-shadow 0.15s;
    animation: itemIn 0.2s ease both;
    box-shadow: 0 1px 4px rgba(90,168,216,0.06);
}
.fix-item:hover {
    background: rgba(255,255,255,0.96);
    border-color: var(--accent);
    box-shadow: 0 2px 10px rgba(90,168,216,0.14);
}

.fix-index   { font-family: var(--font-mono); font-size: 10px; color: var(--text-dim); margin-bottom: 4px; }
.fix-coords  { font-family: var(--font-mono); font-size: 11px; color: var(--blue-deep); font-weight: 500; }
.fix-row     { display: flex; justify-content: space-between; align-items: center; margin-top: 3px; }
.fix-time    { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); }
.fix-alt     { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); }

/* ── Empty state ───────────────────────────────────────────────── */
.empty-state {
    color: var(--text-dim);
    font-size: 12px;
    font-family: var(--font-mono);
    padding: 24px 0 0 4px;
    list-style: none;
}

/* ── Mapbox overrides ──────────────────────────────────────────── */
.mapboxgl-ctrl-attrib { font-size: 10px !important; }

/* ── Add device button ─────────────────────────────────────────── */
.add-btn {
    width: 24px;
    height: 24px;
    border-radius: 6px;
    border: 1px solid var(--border);
    background: var(--accent-dim);
    color: var(--blue-deep);
    font-size: 16px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.18s, border-color 0.18s;
    flex-shrink: 0;
}
.add-btn:hover { background: rgba(90,168,216,0.22); border-color: var(--accent); }

/* ── Add device form ───────────────────────────────────────────── */
.add-form-wrap {
    padding: 18px 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.add-hint {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 14px;
    line-height: 1.5;
}

#addDeviceForm {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.field-label {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-top: 10px;
}
.field-label:first-child { margin-top: 0; }

.optional {
    font-weight: 400;
    text-transform: none;
    letter-spacing: 0;
    color: var(--text-dim);
}

.field-input {
    background: rgba(255,255,255,0.80);
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text-primary);
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 8px 12px;
    outline: none;
    transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
    margin-top: 4px;
}
.field-input::placeholder { color: var(--text-dim); }
.field-input:focus {
    border-color: var(--accent);
    background: #fff;
    box-shadow: 0 0 0 3px rgba(90,168,216,0.12);
}

.submit-btn {
    margin-top: 18px;
    background: var(--blue-deep);
    border: none;
    border-radius: 8px;
    color: #fff;
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 13px;
    font-weight: 500;
    padding: 10px 0;
    transition: background 0.2s, transform 0.1s;
}
.submit-btn:hover  { background: var(--accent); }
.submit-btn:active { transform: scale(0.98); }

/* ── Add status messages ───────────────────────────────────────── */
.add-status {
    margin-top: 12px;
    font-size: 12px;
    font-family: var(--font-mono);
    min-height: 18px;
    border-radius: 6px;
    padding: 0;
    transition: all 0.2s;
}
.add-status.loading { color: var(--text-muted); }
.add-status.error   {
    color: #c0392b;
    background: rgba(192,57,43,0.07);
    border: 1px solid rgba(192,57,43,0.18);
    padding: 8px 10px;
}

/* ── Device card label row ─────────────────────────────────────── */
.dc-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 3px;
}

.dc-colour-pip {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dc-label-row {
    display: flex;
    gap: 6px;
    margin-top: 10px;
}

.dc-label-input {
    flex: 1;
    background: rgba(255,255,255,0.85);
    border: 1px solid var(--border);
    border-radius: 7px;
    color: var(--text-primary);
    font-family: var(--font-ui);
    font-size: 12px;
    padding: 6px 10px;
    outline: none;
    transition: border-color 0.2s, box-shadow 0.2s;
    min-width: 0;
}
.dc-label-input::placeholder { color: var(--text-dim); }
.dc-label-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(90,168,216,0.12);
}

.dc-label-save {
    flex-shrink: 0;
    background: var(--blue-deep);
    border: none;
    border-radius: 7px;
    color: #fff;
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 12px;
    font-weight: 500;
    padding: 6px 12px;
    transition: background 0.2s, transform 0.1s;
}
.dc-label-save:hover  { background: var(--accent); }
.dc-label-save:active { transform: scale(0.97); }

/* ── Fix latest badge ──────────────────────────────────────────── */
.fix-latest {
    display: inline-block;
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: var(--accent-dim);
    color: var(--blue-deep);
    border: 1px solid rgba(90,168,216,0.3);
    border-radius: 4px;
    padding: 1px 5px;
    vertical-align: middle;
    margin-left: 4px;
}

/* ── Track route button ────────────────────────────────────────── */
.track-btn {
    width: 100%;
    margin-top: 10px;
    background: rgba(90,168,216,0.08);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--blue-deep);
    cursor: pointer;
    font-family: var(--font-ui);
    font-size: 12px;
    font-weight: 500;
    padding: 8px 12px;
    text-align: center;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.track-btn:hover { background: rgba(90,168,216,0.16); border-color: var(--accent); }
.track-btn-active {
    background: var(--blue-deep) !important;
    border-color: var(--blue-deep) !important;
    color: #fff !important;
}
.track-btn-active:hover { background: #2a5a8a !important; }

/* ── Tracking badge in device list ────────────────────────────── */
.tracking-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    background: var(--blue-deep);
    color: #fff;
    border-radius: 4px;
    padding: 1px 5px;
    vertical-align: middle;
    margin-left: 5px;
}

/* ── Fix count notice when tracking ───────────────────────────── */
.fix-tracking-notice {
    list-style: none;
    font-family: var(--font-mono);
    font-size: 10px;
    color: var(--text-muted);
    padding: 4px 2px 8px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 4px;
}