:root {
  color-scheme: dark;
  --bg-0: #071015;
  --bg-1: rgba(7, 14, 20, 0.78);
  --bg-2: rgba(4, 8, 13, 0.94);
  --panel: rgba(6, 12, 18, 0.76);
  --panel-strong: rgba(4, 8, 13, 0.92);
  --line: rgba(249, 199, 76, 0.88);
  --line-soft: rgba(249, 199, 76, 0.2);
  --teal: #68f5e0;
  --mint: #57e6bf;
  --text: #eef7f2;
  --text-dim: rgba(228, 239, 234, 0.72);
  --shadow: 0 18px 40px rgba(0, 0, 0, 0.36);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --radius: 22px;
}

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

html,
body {
  margin: 0;
  min-height: 100%;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 18%, rgba(84, 237, 221, 0.16), transparent 32%),
    radial-gradient(circle at 82% 12%, rgba(249, 199, 76, 0.16), transparent 26%),
    linear-gradient(180deg, #081018 0%, #04070c 100%);
  color: var(--text);
  font-family: Bahnschrift, "Trebuchet MS", "PingFang SC", "Noto Sans SC", sans-serif;
  touch-action: manipulation;
}

button,
input,
summary,
output {
  font: inherit;
}

.app-shell {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(6, 10, 16, 0.34), rgba(2, 4, 8, 0.62)),
    radial-gradient(circle at center, rgba(255, 255, 255, 0.05), transparent 58%);
}

.app-shell::before,
.app-shell::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.app-shell::before {
  background:
    repeating-linear-gradient(
      180deg,
      rgba(255, 255, 255, 0.02) 0,
      rgba(255, 255, 255, 0.02) 2px,
      transparent 2px,
      transparent 8px
    ),
    linear-gradient(transparent 46%, rgba(104, 245, 224, 0.05) 50%, transparent 54%);
  opacity: 0.42;
  mix-blend-mode: screen;
}

.app-shell::after {
  background:
    radial-gradient(circle at center, transparent 46%, rgba(1, 2, 4, 0.36) 100%),
    linear-gradient(180deg, rgba(1, 2, 4, 0.12), rgba(1, 2, 4, 0.24));
}

.camera,
.overlay {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.camera {
  object-fit: cover;
  background: #000;
  filter: saturate(0.86) contrast(1.04) brightness(0.72);
}

.overlay {
  pointer-events: none;
}

.app-shell.mirror .camera {
  transform: scaleX(-1);
}

.app-shell.play-mode .brand-card,
.app-shell.play-mode .next-card,
.app-shell.play-mode .record-card,
.app-shell.play-mode .status-card,
.app-shell.play-mode .gesture-grid {
  display: none;
}

.app-shell.play-mode .top-cluster {
  left: 12px;
  top: calc(var(--safe-top) + 12px);
  width: auto;
  transform: none;
}

.app-shell.play-mode .top-grid {
  display: block;
}

.app-shell.play-mode .score-card {
  min-height: auto;
  padding: 12px 14px;
  border-radius: 18px;
}

.app-shell.play-mode .score-card .card-label,
.app-shell.play-mode .score-card .mini-stats {
  display: none;
}

.app-shell.play-mode .score-value {
  margin-top: 0;
  font-size: clamp(28px, 10vw, 44px);
}

.app-shell.play-mode .bottom-dock {
  width: auto;
}

.app-shell.play-mode .action-row {
  grid-template-columns: repeat(3, auto);
}

.chrome {
  position: absolute;
  inset: 0;
  z-index: 4;
  pointer-events: none;
}

.top-cluster,
.bottom-dock,
.toast,
.settings-sheet,
.panel,
.mini-button,
.text-button {
  pointer-events: auto;
}

.top-cluster,
.bottom-dock {
  position: absolute;
  left: 50%;
  width: min(94vw, 460px);
  transform: translateX(-50%);
}

.top-cluster {
  top: calc(var(--safe-top) + 10px);
  display: grid;
  gap: 10px;
}

.bottom-dock {
  bottom: calc(var(--safe-bottom) + 10px);
  display: grid;
  gap: 10px;
}

.panel {
  position: relative;
  padding: 14px 15px;
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 28%),
    linear-gradient(180deg, rgba(8, 14, 20, 0.88), rgba(4, 8, 13, 0.74));
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
}

.panel::after {
  content: "";
  position: absolute;
  inset: 7px;
  border: 1px solid rgba(104, 245, 224, 0.08);
  border-radius: 16px;
  pointer-events: none;
}

.eyebrow,
.card-label {
  display: inline-block;
  color: var(--mint);
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
}

.eyebrow {
  margin: 0 0 10px;
}

.brand-card {
  padding-bottom: 16px;
}

.brand-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

.brand-card h1 {
  margin: 0;
  font-size: clamp(28px, 7vw, 40px);
  line-height: 0.96;
}

.brand-copy {
  margin: 8px 0 0;
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.45;
}

.live-banner {
  max-width: 46%;
  padding: 10px 12px;
  border: 1px solid rgba(104, 245, 224, 0.26);
  border-radius: 16px;
  background: rgba(3, 8, 12, 0.72);
  color: var(--text);
  font-size: 12px;
  line-height: 1.35;
  text-align: center;
}

.top-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(108px, 0.82fr);
  gap: 10px;
}

.score-card {
  grid-row: span 2;
  min-height: 188px;
}

.score-value {
  display: block;
  margin-top: 8px;
  font-size: clamp(34px, 9vw, 54px);
  line-height: 1;
  font-weight: 700;
  font-family: Consolas, "JetBrains Mono", monospace;
}

.mini-stats {
  display: grid;
  gap: 8px;
  margin-top: 18px;
}

.mini-stats div,
.record-grid div,
.status-grid div {
  padding: 10px 11px;
  border: 1px solid rgba(249, 199, 76, 0.12);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
}

.mini-stats span,
.record-grid span,
.status-grid span {
  display: block;
  color: var(--text-dim);
  font-size: 11px;
  margin-bottom: 4px;
}

.mini-stats strong,
.record-grid strong,
.status-grid strong {
  font-size: 17px;
  color: var(--text);
}

.next-card,
.record-card {
  min-height: 92px;
}

#nextCanvas {
  display: block;
  width: 100%;
  height: auto;
  margin-top: 10px;
  aspect-ratio: 1;
}

.record-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.record-grid {
  display: grid;
  gap: 8px;
  margin-top: 12px;
}

.text-button {
  padding: 6px 10px;
  border: 1px solid rgba(249, 199, 76, 0.28);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-dim);
  cursor: pointer;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.action-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 8px;
}

.mini-button,
.primary-button,
.settings-sheet summary {
  border: 1px solid rgba(249, 199, 76, 0.32);
  color: var(--text);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 34%),
    rgba(4, 8, 13, 0.9);
}

.mini-button,
.primary-button,
.text-button,
.settings-sheet summary {
  transition:
    transform 140ms ease,
    border-color 140ms ease,
    background-color 140ms ease;
}

.mini-button,
.primary-button {
  box-shadow: var(--shadow);
  cursor: pointer;
}

.mini-button {
  min-height: 46px;
  padding: 11px 10px;
  border-radius: 16px;
}

.primary-button {
  width: 100%;
  padding: 15px 16px;
  border-radius: 18px;
  font-size: 16px;
  font-weight: 700;
  background:
    linear-gradient(180deg, rgba(104, 245, 224, 0.22), rgba(104, 245, 224, 0.08)),
    rgba(4, 8, 13, 0.92);
}

.mini-button:active,
.primary-button:active,
.text-button:active,
.settings-sheet summary:active {
  transform: translateY(1px);
}

.gesture-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}

.gesture-card {
  min-height: 74px;
  padding: 12px 14px;
  border: 1px solid rgba(249, 199, 76, 0.24);
  border-radius: 18px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 34%),
    rgba(5, 10, 16, 0.88);
  box-shadow: var(--shadow);
}

.gesture-card strong {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
}

.gesture-card span {
  color: var(--text-dim);
  font-size: 12px;
  line-height: 1.45;
}

.gesture-card.active {
  color: #051510;
  border-color: rgba(104, 245, 224, 0.76);
  background: linear-gradient(180deg, #6cf8e5 0%, #2fd2ba 100%);
  box-shadow: 0 0 0 1px rgba(104, 245, 224, 0.5), 0 12px 28px rgba(28, 196, 177, 0.26);
}

.gesture-card.active span {
  color: rgba(5, 21, 16, 0.82);
}

.settings-sheet {
  position: absolute;
  left: 8px;
  top: 50%;
  z-index: 6;
  transform: translateY(-50%);
}

.settings-sheet summary {
  display: grid;
  place-items: center;
  width: 44px;
  min-height: 126px;
  padding: 10px 6px;
  border-radius: 16px;
  list-style: none;
  cursor: pointer;
  user-select: none;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.18em;
}

.settings-sheet summary::-webkit-details-marker {
  display: none;
}

.settings-sheet[open] {
  width: min(76vw, 248px);
  border: 1px solid rgba(249, 199, 76, 0.26);
  border-radius: 18px;
  background: rgba(6, 11, 16, 0.86);
  box-shadow: var(--shadow);
  backdrop-filter: blur(16px);
  overflow: hidden;
}

.settings-sheet[open] summary {
  width: 100%;
  min-height: auto;
  padding: 11px 14px;
  border: none;
  border-bottom: 1px solid rgba(249, 199, 76, 0.14);
  border-radius: 0;
  writing-mode: horizontal-tb;
  letter-spacing: 0.14em;
}

.settings-body {
  display: grid;
  gap: 14px;
  padding: 14px;
}

.setting-line,
.switch-line {
  display: grid;
  gap: 8px;
  color: var(--text-dim);
  font-size: 13px;
}

.setting-line output {
  color: var(--teal);
  font-family: Consolas, "JetBrains Mono", monospace;
}

.setting-line input[type="range"] {
  width: 100%;
}

.switch-line {
  grid-template-columns: 1fr auto;
  align-items: center;
}

.toast {
  position: absolute;
  left: 50%;
  top: clamp(186px, 34vh, 268px);
  z-index: 7;
  width: min(82vw, 320px);
  padding: 10px 14px;
  border-radius: 16px;
  transform: translateX(-50%);
  text-align: center;
  color: #11160e;
  background: linear-gradient(180deg, #f7da6d 0%, #efb248 100%);
  box-shadow: 0 14px 30px rgba(0, 0, 0, 0.34);
  opacity: 0;
  transition: opacity 180ms ease;
}

.toast.visible {
  opacity: 1;
}

.intro-sheet {
  position: absolute;
  inset: 0;
  z-index: 9;
  display: grid;
  place-items: center;
  padding: 20px;
  background:
    linear-gradient(180deg, rgba(2, 5, 8, 0.62), rgba(3, 7, 11, 0.9)),
    radial-gradient(circle at center, rgba(104, 245, 224, 0.12), transparent 42%);
  backdrop-filter: blur(14px);
}

.intro-sheet.hidden {
  display: none;
}

.intro-card {
  width: min(92vw, 440px);
  padding: 24px 22px 20px;
  border: 1px solid rgba(249, 199, 76, 0.34);
  border-radius: 24px;
  background:
    linear-gradient(180deg, rgba(9, 16, 22, 0.96), rgba(4, 8, 13, 0.92)),
    linear-gradient(135deg, rgba(104, 245, 224, 0.1), transparent 50%);
  box-shadow: var(--shadow);
}

.intro-card h2 {
  margin: 0;
  font-size: clamp(28px, 7vw, 42px);
  line-height: 1.04;
}

.intro-copy {
  margin: 16px 0 14px;
  color: var(--text-dim);
  line-height: 1.6;
}

.intro-list {
  margin: 0 0 18px;
  padding-left: 18px;
  color: var(--text-dim);
  line-height: 1.6;
}

.intro-footnote {
  margin: 14px 0 0;
  color: rgba(235, 245, 241, 0.56);
  font-size: 12px;
  line-height: 1.55;
}

.intro-status {
  margin-top: 12px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 122, 95, 0.58);
  border-radius: 16px;
  background: rgba(92, 18, 14, 0.36);
  color: #ffd9d2;
  font-size: 13px;
  line-height: 1.55;
}

@media (max-width: 390px) {
  .top-cluster,
  .bottom-dock {
    width: min(96vw, 460px);
  }

  .panel {
    padding: 12px 13px;
  }

  .top-grid {
    grid-template-columns: minmax(0, 1.06fr) minmax(98px, 0.78fr);
  }

  .status-grid strong,
  .record-grid strong {
    font-size: 15px;
  }

  .score-value {
    font-size: clamp(32px, 8.4vw, 46px);
  }

  .gesture-card {
    min-height: 70px;
    padding: 11px 12px;
  }
}

@media (min-width: 760px) {
  .top-cluster,
  .bottom-dock {
    width: min(90vw, 520px);
  }

  .top-grid {
    grid-template-columns: minmax(0, 1.16fr) minmax(120px, 0.82fr);
  }

  .settings-sheet {
    left: 14px;
  }

  .settings-sheet summary {
    width: auto;
    min-height: auto;
    padding: 10px 12px;
    writing-mode: horizontal-tb;
  }
}