:root {
  --pink: #ff7ab6;
  --pink-light: #ff9ecf;
  --blue: #8fd3ff;
  --blue-light: #a7e8ff;
  --purple: #b388ff;
  --purple-deep: #9b6bff;
  --ink: #05030a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: #000;
  color: #fff;
  font: 13px/1.5 "Segoe UI", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* 摄像头画面：默认做右下角小窗，按 V 切成低透明度全屏底 */
#cam {
  position: fixed;
  right: 16px;
  bottom: 16px;
  width: 168px;
  height: 126px;
  object-fit: cover;
  border-radius: 14px;
  transform: scaleX(-1);
  opacity: 0.42;
  filter: saturate(0.75) contrast(1.05);
  box-shadow: 0 0 0 1px rgba(179, 136, 255, 0.28), 0 12px 40px rgba(255, 122, 182, 0.12);
  transition: opacity 0.35s ease, width 0.35s ease, height 0.35s ease, inset 0.35s ease;
  z-index: 3;
}
#cam.bg {
  inset: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  height: 100%;
  border-radius: 0;
  opacity: 0.16;
  filter: blur(3px) saturate(0.6) brightness(0.55);
}
#cam.off { display: none; }

#scene, #skeleton {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
#scene { z-index: 1; }
#skeleton { z-index: 2; pointer-events: none; }

#hud {
  position: fixed;
  left: 20px;
  top: 18px;
  z-index: 4;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
}

.row { display: flex; align-items: center; gap: 10px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.06em;
  color: #ffd9ec;
  background: radial-gradient(120% 140% at 0% 0%, rgba(255, 122, 182, 0.22), rgba(179, 136, 255, 0.12));
  box-shadow: inset 0 0 0 1px rgba(255, 158, 207, 0.35), 0 6px 24px rgba(255, 122, 182, 0.15);
  backdrop-filter: blur(8px);
}
.pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--pink-light);
  box-shadow: 0 0 10px 2px rgba(255, 158, 207, 0.85);
}
.pill.bloom::before { background: var(--blue-light); box-shadow: 0 0 10px 2px rgba(167, 232, 255, 0.9); }
.pill.bud::before { background: var(--purple); box-shadow: 0 0 10px 2px rgba(179, 136, 255, 0.9); }
.pill.err { color: #ffc2d8; }
.pill.err::before { background: #ff5e94; }

.hint {
  font-size: 11px;
  color: rgba(255, 255, 255, 0.42);
  letter-spacing: 0.08em;
}

.meter { display: flex; align-items: center; gap: 10px; }
.bar {
  width: 180px;
  height: 4px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.09);
  overflow: hidden;
}
.bar > i {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--purple-deep), var(--pink), var(--blue-light));
  box-shadow: 0 0 12px rgba(255, 122, 182, 0.65);
  transition: width 0.08s linear;
}
.num {
  font-variant-numeric: tabular-nums;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.55);
  min-width: 38px;
}

#keys {
  position: fixed;
  left: 20px;
  bottom: 18px;
  z-index: 4;
  font-size: 11px;
  color: rgba(255, 255, 255, 0.3);
  letter-spacing: 0.06em;
  pointer-events: none;
}
#keys b { color: rgba(255, 158, 207, 0.8); font-weight: 600; }

#gate {
  position: fixed;
  inset: 0;
  z-index: 10;
  display: grid;
  place-items: center;
  background: radial-gradient(60% 60% at 50% 40%, rgba(31, 8, 28, 0.92), rgba(0, 0, 0, 0.96));
  backdrop-filter: blur(6px);
  padding: 24px;
}
#gate.hidden { display: none; }

.card {
  max-width: 460px;
  width: 100%;
  padding: 26px 26px 22px;
  border-radius: 20px;
  background: linear-gradient(160deg, rgba(255, 122, 182, 0.1), rgba(179, 136, 255, 0.08) 55%, rgba(143, 211, 255, 0.08));
  box-shadow: inset 0 0 0 1px rgba(255, 158, 207, 0.25), 0 30px 80px rgba(155, 107, 255, 0.18);
}
.card h2 {
  margin: 0 0 10px;
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 0.02em;
  background: linear-gradient(92deg, var(--pink-light), var(--blue-light) 60%, var(--purple));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.card p { margin: 0 0 14px; color: rgba(255, 255, 255, 0.68); font-size: 13px; }
.card .tiny { font-size: 11px; color: rgba(255, 255, 255, 0.34); margin: 14px 0 0; }
.card code {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 11px;
  padding: 1px 5px;
  border-radius: 5px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--blue-light);
}
.card button {
  appearance: none;
  border: 0;
  cursor: pointer;
  padding: 9px 18px;
  border-radius: 999px;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: #1a0410;
  font-weight: 600;
  background: linear-gradient(92deg, var(--pink-light), var(--blue-light));
  box-shadow: 0 10px 30px rgba(255, 122, 182, 0.35);
}
.card button:active { transform: translateY(1px); }

#toast {
  position: fixed;
  left: 50%;
  bottom: 30px;
  transform: translate(-50%, 8px);
  z-index: 6;
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 12px;
  color: #ffe6f2;
  background: rgba(20, 6, 18, 0.78);
  box-shadow: inset 0 0 0 1px rgba(255, 158, 207, 0.3);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease, transform 0.25s ease;
}
#toast.show { opacity: 1; transform: translate(-50%, 0); }

.debug { position: fixed; right: 16px; top: 16px; z-index: 4; }

@media (max-width: 640px) {
  #hud { left: 14px; top: 12px; }
  .bar { width: 120px; }
  #cam { width: 116px; height: 88px; right: 12px; bottom: 12px; }
  #keys { left: 14px; bottom: 12px; font-size: 10px; }
  .hint { display: none; }
}