:root {
  --bg: #000;
  --panel: #0d0a16;
  --line: #2a2340;
  --line-strong: #3a2d5c;
  --button: #1b1630;
  --button-hover: #2a2145;
  --accent: #a992ff;
  --muted: #6a5d95;
  --ink: #ddd;
  --ok: #6ad46a;
  --warn: #d4b76a;
  --axis-x: #ff5c6c;
  --axis-y: #6ad46a;
  --axis-z: #5aa9ff;
  --safe-top: max(20px, env(safe-area-inset-top));
  --safe-right: max(18px, env(safe-area-inset-right));
  --safe-bottom: max(20px, env(safe-area-inset-bottom));
  --safe-left: max(18px, env(safe-area-inset-left));
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  width: 100%;
  min-height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  overscroll-behavior: none;
}

body {
  position: fixed;
  inset: 0;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
  -webkit-text-size-adjust: 100%;
}

button {
  color: inherit;
  font: inherit;
}

.camera-lab {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100vh;
  height: 100svh;
  height: 100dvh;
  overflow: hidden;
  isolation: isolate;
  background-color: var(--bg);
  background-image:
    linear-gradient(rgba(58, 45, 92, 0.13) 1px, transparent 1px),
    linear-gradient(90deg, rgba(58, 45, 92, 0.13) 1px, transparent 1px),
    radial-gradient(circle at 50% 38%, rgba(42, 33, 69, 0.34), transparent 46%);
  background-size: 34px 34px, 34px 34px, auto;
}

.camera-video,
.three-canvas,
.tracking-canvas {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.camera-video {
  z-index: -3;
  background: var(--bg);
}

.three-canvas {
  z-index: -1;
  pointer-events: none;
}

.tracking-canvas {
  z-index: 0;
  pointer-events: none;
}

body[data-facing="user"] .camera-video,
body[data-facing="user"] .three-canvas,
body[data-facing="user"] .tracking-canvas {
  transform: scaleX(-1);
}

.camera-shade {
  position: absolute;
  z-index: -2;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg, rgba(13, 10, 22, 0.72) 0%, transparent 26%),
    linear-gradient(0deg, rgba(13, 10, 22, 0.82) 0%, transparent 30%);
  transition: opacity 180ms ease;
}

body:not([data-status="live"]) .camera-shade {
  background: rgba(0, 0, 0, 0.42);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

.topbar {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding: var(--safe-top) var(--safe-right) 18px var(--safe-left);
  transition: opacity 180ms ease, transform 180ms ease;
}

.topbar > div:first-child {
  padding: 8px 10px;
  border: 1px solid var(--line-strong);
  background: rgba(13, 10, 22, 0.9);
}

.brand,
.phase,
.eyebrow,
.lead,
.privacy,
.requesting p {
  margin: 0;
}

.brand {
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.2em;
}

.phase,
.eyebrow,
.control-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

.phase {
  margin-top: 8px;
  color: var(--muted);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 31px;
  padding: 0 12px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(13, 10, 22, 0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.14em;
  white-space: nowrap;
}

.tracking-hud {
  position: absolute;
  top: calc(var(--safe-top) + 65px);
  left: var(--safe-left);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 31px;
  padding: 0 11px;
  border: 1px solid var(--line-strong);
  background: rgba(13, 10, 22, 0.9);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  color: var(--ink);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.12em;
  transition: opacity 180ms ease, transform 180ms ease;
}

.tracking-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
}

.axis-legend {
  position: absolute;
  top: calc(var(--safe-top) + 104px);
  left: var(--safe-left);
  display: flex;
  gap: 5px;
  transition: opacity 180ms ease, transform 180ms ease;
}

.axis-chip {
  display: inline-flex;
  align-items: baseline;
  gap: 5px;
  min-height: 27px;
  padding: 0 8px;
  border: 1px solid currentColor;
  background: rgba(13, 10, 22, 0.9);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.axis-chip small {
  color: var(--ink);
  font-size: 8px;
  letter-spacing: 0.08em;
}

.axis-x {
  color: var(--axis-x);
}

.axis-y {
  color: var(--axis-y);
}

.axis-z {
  color: var(--axis-z);
}

body[data-tracking="loading"] .tracking-dot {
  background: var(--accent);
  animation: pulse 1.3s ease-in-out infinite;
}

body[data-tracking="searching"] .tracking-dot {
  background: var(--warn);
}

body[data-tracking="detected"] .tracking-dot {
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(106, 212, 106, 0.12);
}

body[data-tracking="error"] .tracking-dot {
  background: var(--warn);
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--muted);
  box-shadow: 0 0 0 4px rgba(106, 93, 149, 0.12);
}

body[data-status="live"] .status-dot {
  background: var(--ok);
  box-shadow: 0 0 0 4px rgba(106, 212, 106, 0.12);
}

body[data-status="error"] .status-dot {
  background: var(--warn);
}

body[data-status="requesting"] .status-dot {
  background: var(--accent);
  animation: pulse 1.3s ease-in-out infinite;
}

.start-card {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(88vw, 460px);
  padding: 30px;
  transform: translate(-50%, -50%);
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(13, 10, 22, 0.94);
  box-shadow: 0 28px 90px rgba(0, 0, 0, 0.5);
  -webkit-backdrop-filter: blur(22px);
  backdrop-filter: blur(22px);
}

.eyebrow {
  color: var(--accent);
}

.start-card h1 {
  margin: 12px 0 16px;
  color: var(--ink);
  font-size: clamp(18px, 5vw, 24px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.lead {
  color: #b9a9e8;
  font-size: 15px;
  line-height: 1.55;
}

.privacy {
  margin-top: 15px;
  color: var(--muted);
  font-size: 11px;
  line-height: 1.55;
}

.install-hint {
  margin: 15px 0 0;
  padding: 10px 0 0;
  border-top: 1px solid var(--line);
  color: #9d8fc4;
  font-size: 9px;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.08em;
}

.primary-button {
  width: 100%;
  min-height: 52px;
  margin-top: 24px;
  padding: 0 20px;
  border: 1px solid var(--accent);
  border-radius: 0;
  background: var(--accent);
  color: #000;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  cursor: pointer;
  touch-action: manipulation;
}

.primary-button:active {
  transform: scale(0.985);
}

.requesting {
  position: absolute;
  top: 50%;
  left: 50%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  transform: translate(-50%, -50%);
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.06em;
}

.spinner {
  display: block;
  width: 34px;
  height: 34px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.controls {
  position: absolute;
  left: 50%;
  bottom: var(--safe-bottom);
  display: flex;
  gap: 8px;
  width: min(calc(100% - var(--safe-left) - var(--safe-right)), 480px);
  transform: translateX(-50%);
  transition: opacity 180ms ease, transform 180ms ease;
}

.rotation-modes {
  position: absolute;
  left: 50%;
  bottom: calc(var(--safe-bottom) + 64px);
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 6px;
  width: min(calc(100% - var(--safe-left) - var(--safe-right)), 480px);
  transform: translateX(-50%);
  transition: opacity 180ms ease, transform 180ms ease;
}

body:not([data-status="live"]) .rotation-modes {
  display: none;
}

.rotation-mode {
  min-width: 0;
  min-height: 42px;
  padding: 0 8px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(13, 10, 22, 0.92);
  color: var(--muted);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.1em;
  cursor: pointer;
  touch-action: manipulation;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}

.rotation-mode.active {
  border-color: var(--accent);
  background: rgba(42, 33, 69, 0.96);
  color: var(--ink);
  box-shadow: inset 0 -3px 0 var(--accent);
}

.rotation-mode:active {
  background: var(--button-hover);
}

body.ui-hidden .topbar {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-18px);
}

body.ui-hidden .tracking-hud {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
}

body.ui-hidden .axis-legend {
  opacity: 0;
  pointer-events: none;
  transform: translateY(-12px);
}

body.ui-hidden .controls {
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 18px);
}

body.ui-hidden .rotation-modes {
  opacity: 0;
  pointer-events: none;
  transform: translate(-50%, 18px);
}

body.ui-hidden .camera-shade {
  opacity: 0;
}

.control-button {
  flex: 1 1 0;
  min-width: 0;
  min-height: 54px;
  padding: 8px 12px;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(27, 22, 48, 0.92);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  cursor: pointer;
  touch-action: manipulation;
}

.control-button:disabled {
  cursor: default;
  opacity: 0.48;
}

.control-button:not(:disabled):active {
  background: var(--button-hover);
}

.primary-control {
  border-color: var(--accent);
}

.control-label,
.control-value {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.control-label {
  color: var(--muted);
}

.control-value {
  margin-top: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.diagnostics {
  position: absolute;
  z-index: 4;
  top: calc(var(--safe-top) + 58px);
  right: var(--safe-right);
  bottom: calc(var(--safe-bottom) + 118px);
  width: min(360px, calc(100vw - var(--safe-left) - var(--safe-right)));
  padding: 20px;
  overflow: auto;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: rgba(13, 10, 22, 0.96);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.42);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
}

.diagnostics-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 15px;
  border-bottom: 1px solid var(--line);
}

.diagnostics h2 {
  margin: 6px 0 0;
  color: #b9a9e8;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.icon-button {
  display: grid;
  width: 32px;
  height: 32px;
  padding: 0;
  place-items: center;
  border: 1px solid var(--line-strong);
  border-radius: 0;
  background: var(--button);
  font-size: 20px;
  cursor: pointer;
}

.diagnostics dl {
  margin: 10px 0 0;
}

.diagnostics dl div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px solid #1d172c;
}

.diagnostics dt,
.diagnostics dd {
  margin: 0;
  font-size: 11px;
  line-height: 1.35;
}

.diagnostics dt {
  color: var(--muted);
}

.diagnostics dd {
  overflow-wrap: anywhere;
  text-align: right;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes pulse {
  50% {
    opacity: 0.45;
  }
}

@media (orientation: landscape) and (max-height: 560px) {
  .start-card {
    width: min(70vw, 620px);
    padding: 22px 26px;
  }

  .start-card h1 {
    margin: 8px 0 10px;
    font-size: 32px;
  }

  .privacy {
    margin-top: 8px;
  }

  .primary-button {
    min-height: 44px;
    margin-top: 14px;
  }

  .diagnostics {
    top: calc(var(--safe-top) + 45px);
    bottom: calc(var(--safe-bottom) + 103px);
  }

  .rotation-modes {
    bottom: calc(var(--safe-bottom) + 54px);
  }

  .rotation-mode {
    min-height: 38px;
  }

  .control-button {
    min-height: 46px;
  }
}

@media (max-width: 390px) {
  .start-card {
    padding: 25px;
  }

  .status-pill {
    padding: 0 9px;
    font-size: 8px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
  }
}

/* ── Panel de ajuste (v10) ───────────────────────────────────────────── */
#tunerRoot{position:fixed;left:0;right:0;bottom:calc(env(safe-area-inset-bottom) + 132px);
  z-index:60;display:flex;flex-direction:column;align-items:center;gap:6px;pointer-events:none}
#tunerRoot > *{pointer-events:auto}

.tuner-toggle{background:rgba(13,10,22,.88);color:#cbb6ff;border:1px solid #6a55b0;
  font:700 13px/1 ui-monospace,Menlo,monospace;letter-spacing:2px;padding:13px 22px;border-radius:4px}
.tuner-toggle:active{background:#241b3a;color:#fff}

.tuner-bar{display:flex;gap:5px;flex-wrap:wrap;justify-content:center;padding:0 8px}
.tuner-tab{background:rgba(13,10,22,.9);color:#9b8bc4;border:1px solid #3d3160;
  font:700 12px/1 ui-monospace,Menlo,monospace;letter-spacing:1.2px;padding:13px 15px;border-radius:4px}
.tuner-tab.on{border-color:#a992ff;color:#fff;background:#2a2145}
.tuner-tab.close{color:#ff8a8a;border-color:#5c3040;padding:13px 18px;font-size:17px}

/* Sin caja: los sliders van desnudos sobre la imagen para no comerse pantalla.
   Legibilidad por sombra de texto y por el propio contraste del pomo. */
.tuner-panel{width:min(94vw,460px);background:none;border:none;padding:0 4px;
  display:flex;flex-direction:column;gap:10px}
.tuner-row{display:flex;flex-direction:column;gap:4px}
.tuner-head{display:flex;justify-content:space-between;align-items:baseline;
  font:700 12px/1 ui-monospace,Menlo,monospace;letter-spacing:.6px;color:#e3dcff;
  text-shadow:0 1px 3px #000,0 0 8px #000}
.tuner-head b{color:#fff;font-size:17px;font-weight:800;text-shadow:0 1px 3px #000,0 0 8px #000}

.tuner-row input[type=range]{-webkit-appearance:none;appearance:none;width:100%;height:30px;
  background:transparent;margin:0}
.tuner-row input[type=range]::-webkit-slider-runnable-track{height:5px;
  background:rgba(160,140,230,.55);border-radius:3px;box-shadow:0 0 0 1px rgba(0,0,0,.7)}
.tuner-row input[type=range]::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;
  width:32px;height:32px;margin-top:-14px;border-radius:50%;background:#a992ff;border:3px solid #0d0a16}
.tuner-row input[type=range]::-moz-range-track{height:5px;background:#3d3160;border-radius:3px}
.tuner-row input[type=range]::-moz-range-thumb{width:32px;height:32px;border-radius:50%;
  background:#a992ff;border:3px solid #0d0a16}

.tuner-reset{background:rgba(13,10,22,.75);color:#cbb6ff;border:1px solid #4a3d75;
  font:600 11px/1 ui-monospace,Menlo,monospace;letter-spacing:1.4px;padding:11px;border-radius:4px}
.tuner-reset:active{color:#fff;border-color:#a992ff}