/* ===========================================================================
   style.css — Tablero de instrumentos. Oscuro por defecto (se conduce de
   noche), táctil de dedo gordo (44 px mínimo) y sin animaciones caras: la
   pantalla del Tesla no perdona.
   =========================================================================== */
:root {
  --fondo: #07090c;
  --carta: #10151b;
  --borde: #1e2731;
  --texto: #e8eef5;
  --tenue: #8b9aab;
  --acento: #3ad2b5;
  --alerta: #e8564b;
  --ambar: #e8b84b;
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--fondo);
  color: var(--texto);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  overscroll-behavior: none;
}

body { padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left); }

button, input { font-family: inherit; color: inherit; }
button { cursor: pointer; border: none; background: none; }
h2 {
  margin: 22px 0 10px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--tenue);
}

/* ── Portada ────────────────────────────────────────────────────────── */
#portada {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: radial-gradient(circle at 50% 30%, #131c26 0%, #07090c 70%);
  z-index: 10;
}
.portada-caja { max-width: 460px; text-align: center; }
#portada h1 {
  margin: 0 0 12px;
  font-size: 46px;
  letter-spacing: -.02em;
}
.lema { margin: 0 0 34px; color: var(--tenue); line-height: 1.55; font-size: 16px; }
.aviso { margin: 22px 0 0; color: var(--tenue); font-size: 13px; line-height: 1.5; }
.error { margin-top: 16px; color: var(--alerta); font-size: 14px; }

.grande {
  width: 100%;
  padding: 22px;
  border-radius: 16px;
  background: var(--acento);
  color: #04120f;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: .04em;
}
.grande:active { background: #2fb79d; }

/* ── Tablero ────────────────────────────────────────────────────────── */
#tablero {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  padding: 18px;
  max-width: 1400px;
  margin: 0 auto;
}

.cuadro {
  background: var(--carta);
  border: 1px solid var(--borde);
  border-radius: 20px;
  padding: 22px 20px 18px;
  text-align: center;
}

.velocidad {
  display: flex;
  align-items: baseline;
  justify-content: center;
}
#kmh {
  font-size: 92px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: -.04em;
  font-variant-numeric: tabular-nums;
}
.unidad {
  margin-left: 10px;
  padding: 6px 10px;
  border-radius: 8px;
  background: #172029;
  color: var(--tenue);
  font-size: 14px;
  font-weight: 600;
}

.tacometro { width: 100%; max-width: 340px; margin: 6px auto 0; display: block; }

.lecturas {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 6px;
}
.lectura b {
  display: block;
  font-size: 24px;
  font-variant-numeric: tabular-nums;
}
.lectura span {
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--tenue);
}
.estado { margin: 14px 0 0; font-size: 13px; color: var(--tenue); min-height: 18px; }
.estado.malo { color: var(--ambar); }

/* ── Panel de mandos ────────────────────────────────────────────────── */
.panel {
  background: var(--carta);
  border: 1px solid var(--borde);
  border-radius: 20px;
  padding: 6px 20px 22px;
}
.panel h2:first-child { margin-top: 16px; }

.voces { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.voz {
  padding: 14px 14px;
  border-radius: 14px;
  border: 1px solid var(--borde);
  background: #141b23;
  text-align: left;
  min-height: 62px;
}
.voz b { display: block; font-size: 15px; font-weight: 600; }
.voz span { display: block; margin-top: 3px; font-size: 12px; color: var(--tenue); line-height: 1.35; }
.voz.activa { border-color: var(--acento); background: #142b28; }
.voz.activa b { color: var(--acento); }

.mando { display: block; margin: 14px 0 18px; }
.mando span {
  display: flex;
  justify-content: space-between;
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--tenue);
}
.mando i { font-style: normal; color: var(--texto); font-variant-numeric: tabular-nums; }

input[type=range] {
  width: 100%;
  height: 34px;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
}
input[type=range]::-webkit-slider-runnable-track {
  height: 8px;
  border-radius: 4px;
  background: #202b36;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 34px;
  height: 34px;
  margin-top: -13px;
  border-radius: 50%;
  background: var(--acento);
  border: 4px solid var(--carta);
}
input[type=range]::-moz-range-track { height: 8px; border-radius: 4px; background: #202b36; }
input[type=range]::-moz-range-thumb {
  width: 26px; height: 26px; border: 4px solid var(--carta);
  border-radius: 50%; background: var(--acento);
}

.fila-botones { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.fila-botones.pie { margin-top: 26px; }
.opcion {
  padding: 15px 10px;
  border-radius: 12px;
  border: 1px solid var(--borde);
  background: #141b23;
  font-size: 15px;
  font-weight: 600;
}
.opcion.activa { border-color: var(--acento); color: var(--acento); background: #142b28; }
.opcion.peligro { color: var(--alerta); border-color: #3a2020; }

/* ── Horizontal y pantallas grandes: el caso del coche ──────────────── */
@media (min-width: 820px) {
  #tablero { grid-template-columns: 1.05fr .95fr; align-items: start; padding: 22px; }
  #kmh { font-size: 132px; }
  .tacometro { max-width: 420px; }
  .lectura b { font-size: 30px; }
  .voces { grid-template-columns: repeat(3, 1fr); }
}

/* La pantalla del Tesla es enorme: que se lea de un vistazo, sin acercarse. */
@media (min-width: 1200px) {
  #kmh { font-size: 170px; }
  .lectura b { font-size: 36px; }
  .voz b { font-size: 17px; }
  .opcion, .voz { min-height: 68px; }
}

/* Móvil tumbado: el cuadro manda, los mandos se apartan. */
@media (max-height: 480px) and (orientation: landscape) {
  #tablero { grid-template-columns: 1fr 1fr; gap: 12px; padding: 12px; }
  #kmh { font-size: 74px; }
  .tacometro { max-width: 240px; }
  .panel { max-height: 96vh; overflow-y: auto; }
}