:root {
  color-scheme: light;
  --bg-top: #f2f4f7;
  --bg-bottom: #e6ebf1;
  --panel: #ffffff;
  --panel-muted: #f4f7fa;
  --border: #c6d0da;
  --border-strong: #aeb9c5;
  --text-main: #1f2b39;
  --text-soft: #5f6f82;
  --text-muted: #76879a;
  --accent: #ea6c52;
  --low-accent: #4f8fd0;
  --high-accent: #cf6154;
  --success: #5c9830;
  --danger: #c84b3e;
  --shadow: 0 10px 24px rgba(72, 88, 106, 0.1);
  font-family: Bahnschrift, "Arial Narrow", Arial, sans-serif;
  line-height: 1.4;
  font-weight: 400;
  color: var(--text-main);
  background: linear-gradient(180deg, var(--bg-top), var(--bg-bottom));
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  min-height: 100vh;
}

button,
input {
  font: inherit;
}

.app-shell {
  width: min(1320px, calc(100% - 24px));
  margin: 0 auto;
  padding: 22px 0 132px;
}

.help-button {
  position: fixed;
  top: 14px;
  right: 14px;
  z-index: 60;
  padding: 10px 14px;
  border: 2px solid #1f2b39;
  border-radius: 999px;
  background: #ffffff;
  color: #1f2b39;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(48, 61, 78, 0.12);
}

.help-button:hover {
  background: #1f2b39;
  color: #ffffff;
}

.gauges-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.gauges-grid--desktop {
  width: min(1020px, 100%);
  margin: 0 auto;
}

.gauge-card,
.control-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.gauge-card {
  border-radius: 24px;
  padding: 20px 18px 18px;
}

.gauge-card__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 16px;
  margin-bottom: 10px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--text-soft);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
}

.gauge-card h2,
.panel-header h2 {
  margin: 0;
  font-size: clamp(2rem, 2.2vw, 3rem);
  line-height: 0.95;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.gauge-shell {
  position: relative;
  aspect-ratio: 1;
}

.gauge-svg {
  width: 100%;
  height: auto;
  display: block;
}

.gauge-readout {
  margin-top: 6px;
  text-align: center;
  font-size: clamp(1.6rem, 2vw, 2.2rem);
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-main);
}

.metric-label,
.control-card__label {
  display: block;
  margin-bottom: 8px;
  color: var(--text-soft);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.control-panel {
  border-radius: 22px;
  padding: 20px;
}

.control-panel--dock {
  padding: 0;
  background: transparent;
  border: 0;
  box-shadow: none;
}

.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.panel-header--minimal h2 {
  font-size: 1.2rem;
  letter-spacing: 0.08em;
}

.panel-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  padding: 0;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--panel-muted);
  color: var(--text-main);
  cursor: pointer;
}

.panel-close svg {
  width: 18px;
  height: 18px;
}

.control-grid {
  display: grid;
  gap: 12px;
}

.control-panel--dock .control-grid {
  grid-template-columns: minmax(220px, 0.7fr) minmax(240px, 0.78fr) minmax(240px, 0.9fr);
  align-items: stretch;
}

.control-card {
  min-width: 0;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: var(--panel-muted);
}

.control-card__top {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 12px;
}

.control-card__reading {
  display: inline-flex;
  align-items: baseline;
  justify-content: flex-end;
  gap: 8px;
  min-width: 0;
}

.control-card__value {
  min-width: 0;
  font-size: 2.1rem;
  font-weight: 700;
  line-height: 1;
  text-align: right;
  color: var(--text-main);
}

.control-card__unit {
  margin-top: 8px;
  color: var(--text-soft);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.control-card__unit--inline {
  margin-top: 0;
  font-size: 1rem;
}

.control-card--toggles {
  display: flex;
  align-items: stretch;
}

.icon-toggle-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  width: 100%;
}

.icon-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  min-height: 70px;
  padding: 10px 8px;
  border-radius: 12px;
  border: 2px solid var(--border);
  background: #eef2f6;
  color: var(--text-main);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.16s ease, background-color 0.16s ease, color 0.16s ease, opacity 0.16s ease;
}

.icon-toggle:hover:not(:disabled) {
  border-color: var(--border-strong);
}

.icon-toggle--on {
  border-color: #3f7f18;
  background: #71b93b;
  color: #102107;
}

.icon-toggle--off {
  border-color: #9f2418;
  background: #d94a3c;
  color: #ffffff;
}

.icon-toggle--disabled {
  opacity: 0.7;
}

.icon-toggle__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.28);
  flex-shrink: 0;
  border: 1px solid rgba(15, 23, 34, 0.16);
}

.icon-toggle__icon svg {
  width: 22px;
  height: 22px;
}

.icon-toggle--off .icon-toggle__icon {
  background: rgba(255, 255, 255, 0.18);
  border-color: rgba(255, 255, 255, 0.16);
}

.icon-toggle--disabled.icon-toggle--off,
.icon-toggle--disabled.icon-toggle--on {
  background: #d8e0e8;
  border-color: #aeb8c4;
  color: #5f6f82;
}

.icon-toggle--disabled .icon-toggle__icon {
  background: #eef2f6;
  border-color: #c8d1db;
}

.icon-toggle__label {
  font-weight: 700;
  font-size: 0.88rem;
  line-height: 1;
  white-space: nowrap;
}

button:disabled,
input:disabled {
  cursor: not-allowed;
}

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 10px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent)) left / var(--range-fill, 0%) no-repeat, #d7dde5;
  outline: none;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 10px;
  border-radius: 999px;
  background: transparent;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  margin-top: -6px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(234, 108, 82, 0.18);
}

input[type="range"]::-moz-range-track {
  height: 10px;
  border-radius: 999px;
  background: #d7dde5;
}

input[type="range"]::-moz-range-progress {
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
}

input[type="range"]::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff;
  border: 3px solid var(--accent);
  box-shadow: 0 0 0 4px rgba(234, 108, 82, 0.18);
}

.rpm-scale {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 0.82rem;
  font-weight: 700;
}

.control-dock {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: 12px;
  width: min(1120px, calc(100% - 24px));
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: 18px;
  background: #ffffff;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  z-index: 30;
}

.control-dock__controls {
  min-width: 0;
  flex: 1;
}

.control-dock__footer {
  display: none;
}

.control-dock__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 10px;
  color: var(--text-soft);
  font-size: 0.88rem;
  font-weight: 700;
}

.control-dock__meta span {
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--panel-muted);
  border: 1px solid var(--border);
}

.control-dock__button {
  flex-shrink: 0;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid #d7a39a;
  background: #f8ece9;
  color: var(--text-main);
  font-weight: 700;
  cursor: pointer;
}

.controls-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(199, 208, 218, 0.46);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
  z-index: 35;
}

.controls-backdrop--open {
  opacity: 1;
  pointer-events: auto;
}

.controls-sheet {
  position: fixed;
  left: 50%;
  bottom: 108px;
  width: min(760px, calc(100% - 24px));
  transform: translateX(-50%) translateY(24px);
  opacity: 0;
  transition: transform 0.22s ease, opacity 0.22s ease;
  pointer-events: none;
  z-index: 40;
}

.controls-sheet--open {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}

.controls-sheet__handle {
  display: none;
}

.driver-popover {
  border-radius: 18px;
  border: 1px solid #d3dbe4;
  box-shadow: 0 20px 40px rgba(31, 43, 57, 0.14);
}

.driver-popover-title {
  font-family: Bahnschrift, "Arial Narrow", Arial, sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: #1f2b39;
}

.driver-popover-description {
  font-family: Bahnschrift, "Arial Narrow", Arial, sans-serif;
  font-size: 0.96rem;
  line-height: 1.5;
  color: #405062;
}

.driver-popover-footer .driver-popover-btn {
  min-width: 104px;
  border-radius: 999px;
  border: 2px solid #1f2b39;
  background: #ffffff;
  color: #1f2b39;
  text-shadow: none;
  box-shadow: none;
  font-family: Bahnschrift, "Arial Narrow", Arial, sans-serif;
  font-weight: 700;
}

.driver-popover-footer .driver-popover-btn:hover {
  background: #1f2b39;
  color: #ffffff;
}

.driver-popover-footer .driver-popover-close-btn {
  color: #5f6f82;
}

@media (max-width: 1120px) {
  .gauge-card h2 {
    font-size: 2.25rem;
  }
}

@media (max-width: 920px) {
  .gauges-grid {
    grid-template-columns: 1fr;
  }

  .control-panel--dock .control-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100% - 14px, 1320px);
    padding-top: 14px;
    padding-bottom: 148px;
  }

  .help-button {
    top: 10px;
    right: 10px;
    padding: 9px 12px;
    font-size: 0.84rem;
  }

  .gauge-card {
    border-radius: 20px;
    padding: 16px;
  }

  .gauge-card h2 {
    font-size: 1.8rem;
  }

  .control-dock {
    left: 10px;
    right: 10px;
    bottom: 10px;
    width: auto;
    transform: none;
    display: grid;
    gap: 10px;
    padding: 12px;
    border-radius: 16px;
  }

  .control-dock__controls {
    display: none;
  }

  .control-dock__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
  }

  .controls-backdrop {
    background: rgba(201, 210, 220, 0.58);
  }

  .controls-sheet {
    left: 0;
    right: 0;
    bottom: 0;
    width: auto;
    padding: 0 10px;
    transform: translateY(calc(100% + 14px));
  }

  .controls-sheet--open {
    transform: translateY(0);
  }

  .controls-sheet__handle {
    display: block;
    width: 54px;
    height: 6px;
    margin: 0 auto 10px;
    border-radius: 999px;
    background: #aab5c2;
  }

  .control-panel--sheet {
    max-height: min(74vh, 640px);
    overflow: auto;
    padding: 18px 16px 22px;
    border-radius: 22px 22px 0 0;
  }

  .control-panel--sheet .control-grid,
  .icon-toggle-grid {
    grid-template-columns: 1fr;
  }

  .control-card__value {
    font-size: 1.8rem;
  }

  .control-card__reading {
    gap: 6px;
  }

  .rpm-scale {
    font-size: 0.76rem;
  }
}