:root {
  --ink: #e8f4ef;
  --dim: #8aa39b;
  --cyan: #3ee0c5;
  --warm: #ffb15a;
  --alert: #ff4d4d;
  --glass: rgba(6, 16, 18, 0.58);
  --line: rgba(62, 224, 197, 0.35);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  background: #03080a;
  color: var(--ink);
  font-family: "Noto Sans SC", sans-serif;
  overflow: hidden;
}

#stage {
  position: relative;
  width: 100vw;
  height: 100vh;
}

body.portrait #stage {
  width: min(100vw, calc(100vh * 9 / 16));
  height: min(100vh, calc(100vw * 16 / 9));
  margin: 0 auto;
}

#canvas-wrap,
#webgl,
#webgl canvas,
#labels {
  position: absolute;
  inset: 0;
}

#labels {
  pointer-events: none;
  overflow: hidden;
}

.hud-top,
.hud-left,
.hud-right,
.hud-bottom,
#toast {
  position: absolute;
  z-index: 4;
  pointer-events: none;
}

.hud-top {
  top: 28px;
  left: 28px;
  right: 28px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
}

.brand em {
  display: block;
  font-family: "IBM Plex Mono", monospace;
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--cyan);
}

.brand strong {
  display: block;
  margin-top: 6px;
  font-size: 28px;
  letter-spacing: 0.08em;
  text-shadow: 0 8px 28px rgba(0, 0, 0, 0.55);
}

.live {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(12px);
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.16em;
}

.live i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--alert);
  box-shadow: 0 0 12px var(--alert);
  animation: pulse 1.1s infinite;
}

.hud-left {
  top: 120px;
  left: 28px;
  width: 220px;
  display: grid;
  gap: 10px;
}

.metric {
  padding: 16px 18px 12px;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(14px);
}

.metric span,
.hud-right h2,
.hw {
  font-family: "IBM Plex Mono", monospace;
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--dim);
}

.metric b {
  display: block;
  margin-top: 2px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 64px;
  line-height: 1;
  color: var(--cyan);
  font-weight: 600;
}

.metric.slim b { font-size: 32px; color: var(--ink); }

.hw { margin-top: 6px; max-width: 220px; line-height: 1.6; }

.hud-right {
  top: 120px;
  right: 28px;
  width: 260px;
  padding: 16px;
  border: 1px solid var(--line);
  background: var(--glass);
  backdrop-filter: blur(14px);
}

.hud-right h2 { margin-bottom: 12px; }

#feed {
  list-style: none;
  display: grid;
  gap: 10px;
}

#feed li {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  font-size: 14px;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

#feed li em {
  font-style: normal;
  color: var(--warm);
}

#feed li b { font-weight: 700; }

#feed li span {
  font-family: "IBM Plex Mono", monospace;
  color: var(--cyan);
  font-size: 12px;
}

#toast {
  left: 50%;
  bottom: 110px;
  transform: translateX(-50%);
  min-width: 420px;
  padding: 16px 22px;
  border: 1px solid rgba(255, 177, 90, 0.55);
  background: rgba(18, 10, 4, 0.78);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  text-align: center;
}

#toast[hidden] { display: none; }

#toast strong {
  display: block;
  font-family: "Noto Serif SC", serif;
  font-size: 30px;
}

#toast small {
  display: block;
  margin-top: 4px;
  color: var(--warm);
  letter-spacing: 0.18em;
  font-family: "IBM Plex Mono", monospace;
}

.hud-bottom {
  left: 28px;
  right: 28px;
  bottom: 24px;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-family: "IBM Plex Mono", monospace;
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--dim);
}

.hud-bottom b { color: var(--ink); }

body.recording .hint { display: none; }

.tag {
  transform: translate(-50%, -150%);
  padding: 8px 12px 9px;
  border: 1px solid rgba(255,255,255,0.22);
  background: rgba(6, 12, 14, 0.9);
  color: #f6fffb;
  font-size: 18px;
  letter-spacing: 0.06em;
  white-space: nowrap;
  box-shadow: 0 10px 24px rgba(0,0,0,0.35);
}

.tag b { color: var(--cyan); }

.tag.hit {
  border-color: rgba(255, 177, 90, 0.8);
  background: rgba(48, 22, 6, 0.88);
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.25; }
}