:root {
    --bg: #14181c;
    --panel-bg: #1e252b;
    --dial-bg: #0c1014;
    --border: #2c363d;
    --text: #f4f7f9;
    --text-dim: #aab8c2;
    --accent: #ff8c1a;
    --ok: #3ecf6e;
    --warn: #e0b400;
    --bad: #e0463c;
    --gauge-gap: clamp(0.4rem, 1.6vh, 1rem);
    font-family: 'Segoe UI', Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

html, body {
    height: 100%;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

.panel-header {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.25rem;
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border);
}

.panel-header h1 {
    font-size: 0.95rem;
    margin: 0;
    letter-spacing: 0.03em;
    text-transform: uppercase;
    color: var(--accent);
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.sound-btn {
    background: var(--dial-bg);
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.7rem;
    font-size: 0.78rem;
    cursor: pointer;
    white-space: nowrap;
}
.sound-btn:hover { border-color: var(--accent); }
.sound-btn.active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(255, 140, 26, 0.12);
}

.status {
    font-size: 0.75rem;
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    border: 1px solid var(--border);
}
.status-ok { color: var(--ok); border-color: var(--ok); }
.status-stale { color: var(--warn); border-color: var(--warn); }
.status-error { color: var(--bad); border-color: var(--bad); }
.status-unknown { color: var(--text-dim); }
.status-demo { color: var(--accent); border-color: var(--accent); }

/* ---------- View switching (Map / Diesel / Auto) ---------- */
/* Exactly one of #view-map / #view-diesel / #view-auto is visible at a time,
   toggled via the [hidden] attribute -- each fills the remaining body height
   the same way the old single-view layout did. */

.app-view {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
}
.app-view[hidden] { display: none; }

.auto-panel-notice {
    flex: 0 0 auto;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.8rem;
    padding: 0.4rem 1rem;
}

/* ---------- Dash cluster layout ---------- */
/* Everything below sizes off viewport height (vh) via clamp() so the whole
   cluster -- matching the Valid Instrument Cluster's page-15 layout -- fits
   in one screen with no scrolling, on both short and tall windows. */

.dash-cluster {
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--gauge-gap);
    padding: 0.5rem 1rem;
    overflow: auto;
    background: radial-gradient(ellipse at center, #1a2027 0%, #10141a 100%);
}

.dash-top-row {
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    flex-wrap: wrap;
    width: 100%;
    gap: var(--gauge-gap);
}

.gauge-row {
    display: flex;
    justify-content: space-evenly;
    gap: var(--gauge-gap);
}

.dash-mid-row {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    width: 100%;
    gap: clamp(0.15rem, 0.4vh, 0.3rem);
}

/* ---------- Indicator strip (Zone 1 warning lamps) ---------- */

.indicator-strip {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    width: 100%;
    gap: clamp(0.3rem, 1vh, 0.6rem);
    background: var(--dial-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: clamp(0.3rem, 0.9vh, 0.55rem) clamp(0.6rem, 1.4vh, 1rem);
}

.lamp {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(0.6rem, 1.3vh, 0.85rem);
    font-weight: 700;
    letter-spacing: 0.03em;
    padding: 0.15em 0.6em;
    border-radius: 3px;
    color: #c3ccd4;
    background: transparent;
    border: 1px solid #6b7885;
    white-space: nowrap;
    transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.lamp-active.lamp-caution {
    color: #1a1408;
    background: var(--warn);
    border-color: var(--warn);
}

.lamp-active.lamp-critical {
    color: #1a0d0b;
    background: var(--bad);
    border-color: var(--bad);
    animation: lamp-pulse 1s ease-in-out infinite;
}

@keyframes lamp-pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
}

/* ---------- Message center ---------- */

.message-center {
    flex: 0 1 auto;
    width: clamp(200px, 24vw, 460px);
    align-self: stretch;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 14ch;
    text-align: center;
    background: var(--dial-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: clamp(0.5rem, 1.4vh, 0.9rem) clamp(0.6rem, 1.6vh, 1rem);
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(0.9rem, 2.2vh, 1.4rem);
    font-weight: 700;
    letter-spacing: 0.03em;
}

.msg-ok { color: var(--text-dim); }
.msg-caution { color: var(--warn); }
.msg-critical { color: var(--bad); }

.info-box {
    background: var(--dial-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: clamp(0.35rem, 1.12vh, 0.7rem) clamp(0.7rem, 1.96vh, 1.26rem);
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(1.12rem, 2.52vh, 1.54rem);
    color: var(--accent);
    white-space: nowrap;
}
.info-sep { color: var(--text-dim); margin: 0 0.4em; }

/* ---------- Round gauges ---------- */

.gauge {
    position: relative;
    width: clamp(87px, 12.6vh, 140px);
    text-align: center;
}
.gauge.gauge-lg {
    width: clamp(182px, 30.8vh, 308px);
}

.gauge-svg {
    width: 100%;
    aspect-ratio: 1 / 1;
    height: auto;
    display: block;
}

.gauge-face {
    fill: #232d37;
    stroke: #3a4854;
    stroke-width: 1;
}

.gauge-track {
    fill: none;
    stroke: #4a5764;
    stroke-width: 10;
    stroke-linecap: round;
}

.gauge-zone-warn {
    fill: none;
    stroke: var(--bad);
    stroke-width: 10;
    stroke-linecap: round;
    opacity: 0.85;
}

.gauge-tick {
    stroke: #d5dce1;
    stroke-width: 2;
}

.gauge-tick-label {
    fill: #eef2f4;
    font-size: 13px;
    font-weight: 600;
    text-anchor: middle;
    font-family: 'Segoe UI', Arial, sans-serif;
}

.gauge-minor-tick {
    stroke: #d5dce1;
    stroke-width: 1.2;
    opacity: 0.55;
}

.gauge-needle-group {
    transform-origin: 100px 100px;
    transition: transform 0.4s ease-out;
}

.gauge-needle {
    stroke: var(--accent);
    stroke-width: 4;
    stroke-linecap: round;
}

.gauge-hub {
    fill: #6b7885;
    stroke: var(--accent);
    stroke-width: 2;
}

.gauge-label {
    margin-top: -0.4rem;
    font-size: clamp(0.7rem, 1.4vh, 0.95rem);
    letter-spacing: 0.06em;
    color: var(--text-dim);
    text-transform: uppercase;
}

.gauge-digital {
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(0.91rem, 1.82vh, 1.26rem);
    color: var(--accent);
}

.gauge-lg .gauge-digital {
    display: none; /* tach/speedo use their own overlay readouts instead */
}

/* ---------- Tachometer overlay (gear + odometer + battery) ---------- */

.tach-overlay {
    position: absolute;
    top: 52%;
    left: 50%;
    transform: translate(-50%, -20%);
    text-align: center;
    pointer-events: none;
}

.gear-display {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 0.25rem;
    font-family: 'Consolas', 'Courier New', monospace;
}
.gear-current {
    font-size: clamp(1.4rem, 4.48vh, 2.38rem);
    font-weight: 700;
    color: var(--text);
}
.gear-current.gear-mismatch {
    color: var(--bad);
}

.tach-rpm-readout {
    position: absolute;
    top: 18%;
    left: 50%;
    transform: translate(-50%, 0);
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(1rem, 2.8vh, 1.4rem);
    font-weight: 700;
    color: var(--text);
    pointer-events: none;
}

.odo-box {
    margin-top: 0.2rem;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(0.7rem, 1.61vh, 0.95rem);
    color: var(--text-dim);
    line-height: 1.25;
}
.odo-box span { color: var(--text); }

.batt-box {
    margin-top: 0.15rem;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(0.77rem, 1.75vh, 1.01rem);
    color: var(--ok);
}

/* ---------- Speedometer digital readout ---------- */

.speedo-digital-readout {
    position: absolute;
    top: 58%;
    left: 50%;
    transform: translate(-50%, -20%);
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: clamp(1.82rem, 7vh, 3.08rem);
    font-weight: 700;
    color: var(--text);
    pointer-events: none;
}

/* ---------- Raw J1939 log ---------- */

.log-panel {
    flex: 0 0 13vh;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 0.4rem 1.25rem 0.6rem;
}

.log-panel h2 {
    flex: 0 0 auto;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    margin: 0 0 0.35rem;
}

#j1939-log {
    flex: 1 1 auto;
    min-height: 0;
    width: 100%;
    resize: none;
    background: #0b0e11;
    color: #7fd88f;
    border: 1px solid var(--border);
    border-radius: 4px;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.75rem;
    line-height: 1.35;
    padding: 0.6rem;
    white-space: pre;
}

/* ---------- Playback bar (test-data scrubber) ---------- */

.playback-bar {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.5rem 1.25rem;
    background: var(--panel-bg);
    border-top: 1px solid var(--border);
}

.playback-btn {
    flex: 0 0 auto;
    background: var(--dial-bg);
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.4rem 0.8rem;
    font-size: 0.8rem;
    cursor: pointer;
    white-space: nowrap;
}
.playback-btn:hover { border-color: var(--accent); }
.playback-btn-secondary { color: var(--text-dim); }

.playback-time {
    flex: 0 0 auto;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text-dim);
    white-space: nowrap;
}

.playback-scrubber {
    flex: 1 1 auto;
    min-width: 0;
    accent-color: var(--accent);
}

.playback-phase {
    flex: 0 0 auto;
    font-size: 0.8rem;
    color: var(--text);
    min-width: 12ch;
    text-align: right;
    white-space: nowrap;
}

@media (max-width: 700px) {
    .dash-mid-row { gap: 0.25rem; }
    .playback-phase { display: none; }
}

/* ---------- GPS map modal ---------- */

.map-modal {
    position: fixed;
    inset: 0;
    z-index: 1000;
    flex-direction: column;
    background: var(--bg);
}
.map-modal:not([hidden]) { display: flex; }

.map-modal-header {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.25rem;
    background: var(--panel-bg);
    border-bottom: 1px solid var(--border);
    color: var(--accent);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.map-total-miles {
    color: var(--text-dim);
    text-transform: none;
    letter-spacing: normal;
    font-size: 0.8rem;
}

.map-modal-header-controls {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.map-close-btn {
    background: var(--dial-bg);
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.7rem;
    font-size: 0.85rem;
    cursor: pointer;
}
.map-close-btn:hover { border-color: var(--accent); }
.map-close-btn.active {
    color: var(--accent);
    border-color: var(--accent);
    background: rgba(255, 140, 26, 0.12);
}

.map-day-select {
    background: var(--dial-bg);
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.3rem 0.5rem;
    font-size: 0.85rem;
    text-transform: none;
    letter-spacing: normal;
    cursor: pointer;
}
.map-day-select:hover { border-color: var(--accent); }

.map-container-wrap {
    position: relative;
    flex: 1 1 auto;
    min-height: 0;
}

.map-container {
    position: absolute;
    inset: 0;
}

.filters-wrap {
    position: relative;
}

.map-filters-menu {
    position: absolute;
    top: calc(100% + 4px);
    right: 0;
    min-width: 130px;
    background: var(--panel-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 4px 0;
    z-index: 20;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.4);
}
.map-filters-menu[hidden] { display: none; }

.map-filters-item {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    font-size: 0.85rem;
    color: var(--text-dim);
    text-transform: none;
    letter-spacing: normal;
    cursor: pointer;
    white-space: nowrap;
}
.map-filters-item:hover { color: var(--accent); }
.map-filters-item input[disabled] { cursor: not-allowed; }

.radar-playback-bar {
    display: none;
    position: absolute;
    left: 8px;
    right: 8px;
    bottom: 8px;
    z-index: 15;
    align-items: center;
    gap: 8px;
    background: rgba(20, 24, 28, 0.85);
    border-radius: 8px;
    padding: 6px 10px;
}

.radar-play-btn {
    flex-shrink: 0;
    width: 30px;
    height: 28px;
    border: none;
    border-radius: 6px;
    background: var(--accent);
    color: var(--bg);
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
}

.radar-slider { flex: 1 1 auto; }
.radar-time-label { flex-shrink: 0; min-width: 56px; text-align: right; color: #f4f7f9; font-size: 12px; }

/* Leaflet's default .leaflet-div-icon has a white box + border; the car
   marker draws its own shape via inline SVG, so strip that back out. The
   svg's own transition is what makes a bearing change between playback
   frames read as a smooth turn instead of a snap. */
.gps-car-marker {
    background: transparent;
    border: none;
}
.gps-car-marker svg {
    transition: transform 0.25s linear;
    transform-origin: 50% 50%;
}

.gps-playback-bar {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
    padding: 0.5rem 1.25rem;
    background: var(--panel-bg);
    border-top: 1px solid var(--border);
    box-sizing: border-box;
}

.gps-playback-play-btn {
    flex: 0 0 auto;
    white-space: nowrap;
}

.gps-playback-scrubber-wrap {
    position: relative;
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    align-items: center;
}

.gps-playback-scrubber {
    width: 100%;
    accent-color: var(--accent);
}

/* Overlaid on top of the scrubber's track (not interactive -- clicks pass
   through to the range input underneath) to mark skipped no-activity
   stretches. Percentage-based, so it's a close approximation rather than
   pixel-perfect against the native thumb/track rendering, which varies by
   browser. */
.gps-playback-freeze-lines {
    position: absolute;
    left: 0;
    right: 0;
    top: 50%;
    height: 14px;
    transform: translateY(-50%);
    pointer-events: none;
}

.gps-freeze-line {
    position: absolute;
    top: 0;
    width: 2px;
    height: 100%;
    background: #ff5f5f;
}

.gps-playback-time {
    flex: 0 0 auto;
    color: var(--text-dim);
    font-size: 0.85rem;
    white-space: nowrap;
    min-width: 11em;
    text-align: right;
}

@media (max-width: 640px) {
    .gps-playback-bar { flex-wrap: wrap; }
    .gps-playback-scrubber-wrap { order: 1; flex-basis: 100%; }
}

/* Raw data modal stacks above the map modal (opened from within it), rather
   than replacing it, so "Close" on the table returns to the map underneath. */
#raw-data-modal { z-index: 1001; }

.raw-data-container {
    flex: 1 1 auto;
    min-height: 0;
    overflow: auto;
    padding: 0.75rem 1.25rem;
}

.raw-data-table {
    width: 100%;
    border-collapse: collapse;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 0.8rem;
    color: var(--text);
}

.raw-data-table th {
    position: sticky;
    top: 0;
    background: var(--panel-bg);
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-size: 0.7rem;
    text-align: left;
    padding: 0.4rem 0.6rem;
    border-bottom: 1px solid var(--border);
}

.raw-data-table td {
    padding: 0.3rem 0.6rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

.raw-data-table tbody tr:hover { background: var(--dial-bg); }