:root {
  color-scheme: dark;
  --ink: rgba(230, 236, 232, 0.86);
  --muted: rgba(230, 236, 232, 0.58);
  --dim: rgba(230, 236, 232, 0.34);
  --wash-a: #182025;
  --wash-b: #252b2d;
  --wash-c: #303332;
  --pink: #f08db8;
  --blue: #7fc7da;
  --paper: rgba(255, 246, 224, 0.08);
}

* {
  box-sizing: border-box;
}

html,
body {
  width: 100%;
  height: 100%;
  min-height: 100dvh;
  margin: 0;
  overflow: hidden;
  touch-action: none;
  background:
    radial-gradient(circle at 18% 24%, rgba(126, 146, 150, 0.22), transparent 34%),
    radial-gradient(circle at 80% 78%, rgba(112, 118, 127, 0.18), transparent 32%),
    linear-gradient(135deg, var(--wash-a), var(--wash-b) 52%, var(--wash-c));
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

#stage,
#canvas-wrap {
  position: fixed;
  inset: 0;
}

canvas {
  display: block;
  position: relative;
  z-index: 2;
}

.camera-feed {
  position: fixed;
  inset: 0;
  z-index: 1;
  --camera-scale: 0.94;
  width: 100%;
  height: 100%;
  object-fit: contain;
  transform: scaleX(-1) scale(var(--camera-scale));
  transform-origin: center;
  opacity: 0.68;
  filter: saturate(1.02) contrast(1.08) brightness(0.94);
  background: #11191d;
}

#stage::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 3;
  pointer-events: none;
  background:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 46px 46px, 46px 46px;
  mix-blend-mode: soft-light;
  opacity: 0.22;
}

.hud {
  position: fixed;
  left: 28px;
  right: 28px;
  bottom: 24px;
  z-index: 5;
  display: grid;
  grid-template-columns: minmax(88px, auto) minmax(170px, 1fr);
  gap: 8px 18px;
  align-items: end;
  color: var(--ink);
  pointer-events: none;
  text-shadow: 0 1px 16px rgba(0, 0, 0, 0.35);
}

.title {
  display: inline-flex;
  grid-row: span 2;
  gap: 10px;
  align-items: center;
  font-size: 18px;
  letter-spacing: 0.08em;
}

.mark {
  width: 9px;
  height: 26px;
  border: 2px solid rgba(255, 246, 224, 0.72);
  border-radius: 8px 999px 999px 10px;
  background: linear-gradient(var(--pink), var(--blue));
}

.hint {
  font-size: 13px;
  color: var(--muted);
}

.keys,
.subkeys {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
  font-size: 12px;
  color: var(--muted);
}

.subkeys {
  color: var(--dim);
}

.status {
  position: fixed;
  top: 22px;
  right: 24px;
  z-index: 6;
  min-width: 86px;
  padding: 8px 12px;
  border: 1px solid rgba(214, 226, 221, 0.15);
  border-radius: 999px;
  background: rgba(14, 19, 22, 0.22);
  color: rgba(230, 236, 232, 0.7);
  font-size: 12px;
  text-align: center;
  backdrop-filter: blur(12px);
}

.loop-indicator {
  position: fixed;
  right: 24px;
  bottom: 96px;
  z-index: 6;
  width: min(260px, calc(100vw - 48px));
  padding: 10px 12px;
  border: 1px solid rgba(255, 246, 224, 0.18);
  border-radius: 8px;
  background: rgba(22, 24, 23, 0.34);
  color: rgba(255, 246, 224, 0.7);
  font-size: 11px;
  pointer-events: none;
  opacity: 0.68;
  backdrop-filter: blur(12px);
}

.loop-indicator.is-active {
  opacity: 0.96;
  box-shadow: 0 0 24px rgba(141, 214, 227, 0.12);
}

.loop-head {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 8px;
  letter-spacing: 0.08em;
}

.loop-track {
  position: relative;
  height: 7px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(255, 246, 224, 0.13);
}

#loop-progress {
  display: block;
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, #8dd6e3, #fff0a8 52%, #f08db8);
  box-shadow: 0 0 12px rgba(255, 240, 168, 0.24);
}

.loop-count {
  margin-top: 8px;
  color: rgba(255, 246, 224, 0.46);
}

.camera-panel {
  position: fixed;
  top: 24px;
  left: 24px;
  z-index: 6;
  width: min(270px, calc(100vw - 48px));
  padding: 12px;
  border: 2px solid rgba(255, 246, 224, 0.16);
  border-radius: 8px;
  background: rgba(31, 27, 23, 0.68);
  box-shadow: 0 18px 55px rgba(0, 0, 0, 0.24);
  color: rgba(255, 246, 224, 0.88);
  backdrop-filter: blur(14px);
}

.panel-head,
.meter-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.panel-head {
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: 0.08em;
}

.panel-head strong {
  color: #f08db8;
  font-size: 12px;
}

#camera-toggle {
  width: 100%;
  min-height: 34px;
  border: 0;
  border-radius: 7px;
  background: linear-gradient(135deg, #fff0a8, #8dd6e3 52%, #f08db8);
  color: #2b2b25;
  font-weight: 800;
  cursor: pointer;
}

#camera-toggle:disabled {
  cursor: progress;
  filter: grayscale(0.65);
  opacity: 0.7;
}

.meter-row {
  margin-top: 11px;
  font-size: 12px;
  color: rgba(255, 246, 224, 0.7);
}

meter {
  width: 138px;
  height: 8px;
}

.vision-readout {
  margin-top: 12px;
  min-height: 34px;
  padding: 8px;
  border: 1px dashed rgba(255, 246, 224, 0.18);
  border-radius: 7px;
  color: rgba(255, 246, 224, 0.64);
  font-size: 11px;
  line-height: 1.45;
}

@media (max-width: 760px) {
  #stage,
  #canvas-wrap {
    min-height: 100dvh;
  }

  #stage::after {
    background-size: 34px 34px, 34px 34px;
    opacity: 0.14;
  }

  .camera-feed {
    --camera-scale: 0.84;
  }

  .hud {
    left: max(12px, env(safe-area-inset-left));
    right: max(12px, env(safe-area-inset-right));
    bottom: max(12px, env(safe-area-inset-bottom));
    grid-template-columns: 1fr;
    gap: 5px;
    padding: 10px 11px;
    border: 1px solid rgba(255, 246, 224, 0.12);
    border-radius: 8px;
    background: rgba(16, 20, 21, 0.34);
    backdrop-filter: blur(10px);
  }

  .title {
    grid-row: auto;
    font-size: 14px;
  }

  .hint {
    font-size: 11px;
  }

  .keys {
    display: none;
  }

  .subkeys {
    gap: 8px;
    font-size: 10px;
  }

  .camera-panel {
    top: max(10px, env(safe-area-inset-top));
    left: max(10px, env(safe-area-inset-left));
    width: min(188px, calc(100vw - 20px));
    padding: 9px;
    background: rgba(31, 27, 23, 0.48);
    backdrop-filter: blur(10px);
  }

  .panel-head {
    margin-bottom: 7px;
    font-size: 9px;
  }

  #camera-toggle {
    min-height: 38px;
    font-size: 13px;
  }

  .meter-row,
  .vision-readout {
    display: none;
  }

  .status {
    top: max(10px, env(safe-area-inset-top));
    right: max(10px, env(safe-area-inset-right));
    min-width: 72px;
    padding: 7px 9px;
    font-size: 10px;
  }

  .loop-indicator {
    left: max(12px, env(safe-area-inset-left));
    right: max(12px, env(safe-area-inset-right));
    bottom: calc(max(12px, env(safe-area-inset-bottom)) + 84px);
    width: auto;
    padding: 8px 10px;
    font-size: 10px;
    background: rgba(22, 24, 23, 0.28);
  }

  .loop-count {
    display: none;
  }
}

@media (max-width: 760px) and (orientation: landscape) {
  .hud {
    width: 44vw;
    right: auto;
  }

  .loop-indicator {
    left: auto;
    width: min(220px, 40vw);
    bottom: max(12px, env(safe-area-inset-bottom));
  }
}