:root {
  color-scheme: dark;
  --bg-0: #140f0b;
  --bg-1: #24160f;
  --bg-2: #3d2418;
  --glass: rgba(255, 243, 223, 0.12);
  --glass-strong: rgba(255, 243, 223, 0.18);
  --line: rgba(255, 243, 223, 0.18);
  --text-main: #fff4e0;
  --text-soft: rgba(255, 244, 224, 0.72);
  --danger: #ff6b4a;
  --danger-soft: rgba(255, 107, 74, 0.24);
  --accent: #ffd166;
  --shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

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

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Bricolage Grotesque", "Noto Sans SC", sans-serif;
  background:
    radial-gradient(circle at 15% 20%, rgba(255, 209, 102, 0.08), transparent 26%),
    radial-gradient(circle at 82% 12%, rgba(255, 107, 74, 0.10), transparent 28%),
    linear-gradient(160deg, #080605 0%, #1d130d 45%, #0d0907 100%);
  color: var(--text-main);
  overscroll-behavior: none;
  user-select: none;
}

.app-shell {
  width: 100%;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding:
    max(env(safe-area-inset-top), 14px)
    max(env(safe-area-inset-right), 14px)
    max(env(safe-area-inset-bottom), 14px)
    max(env(safe-area-inset-left), 14px);
}

.stage {
  position: relative;
  width: min(100%, 460px);
  height: min(calc(100dvh - 28px), 980px);
  overflow: hidden;
  border-radius: 34px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 25%),
    radial-gradient(circle at top, rgba(255, 221, 159, 0.08), transparent 35%),
    linear-gradient(180deg, #2a1b12 0%, #1f1510 44%, #120d09 100%);
  box-shadow: var(--shadow);
  touch-action: none;
  isolation: isolate;
}

@media (min-width: 560px) and (min-height: 720px) {
  .stage {
    width: min(460px, calc((100dvh - 28px) * 0.5));
  }
}

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

.stage::before {
  background:
    linear-gradient(transparent 94%, rgba(255, 230, 198, 0.08) 100%),
    repeating-linear-gradient(
      0deg,
      rgba(255, 230, 198, 0.018) 0,
      rgba(255, 230, 198, 0.018) 1px,
      transparent 1px,
      transparent 72px
    ),
    repeating-linear-gradient(
      90deg,
      rgba(255, 230, 198, 0.018) 0,
      rgba(255, 230, 198, 0.018) 1px,
      transparent 1px,
      transparent 72px
    );
  mix-blend-mode: screen;
  opacity: 0.6;
}

.stage::after {
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.03), inset 0 -120px 120px rgba(0, 0, 0, 0.26);
}

.stage-noise {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 20% 30%, rgba(255, 239, 211, 0.12) 0 2px, transparent 2px 100%),
    radial-gradient(circle at 74% 68%, rgba(255, 183, 77, 0.10) 0 1.6px, transparent 1.6px 100%),
    radial-gradient(circle at 55% 18%, rgba(255, 132, 85, 0.08) 0 1.8px, transparent 1.8px 100%),
    radial-gradient(circle at 36% 76%, rgba(255, 239, 211, 0.08) 0 1.4px, transparent 1.4px 100%);
  background-size: 180px 180px, 210px 210px, 240px 240px, 260px 260px;
  opacity: 0.6;
  pointer-events: none;
}

#gameCanvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hud {
  position: absolute;
  inset: 16px 16px auto;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  z-index: 2;
  pointer-events: none;
}

.hud-card {
  padding: 12px 12px 10px;
  border-radius: 18px;
  background: var(--glass);
  border: 1px solid var(--line);
  backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.hud-card-alert {
  background: linear-gradient(180deg, rgba(255, 107, 74, 0.17), rgba(255, 107, 74, 0.08));
  border-color: rgba(255, 107, 74, 0.28);
}

.hud-label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
  margin-bottom: 5px;
}

.hud-card strong {
  font-size: clamp(1rem, 2vw + 0.55rem, 1.22rem);
  line-height: 1;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(8, 5, 3, 0.22);
  backdrop-filter: blur(6px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 220ms ease;
  z-index: 3;
}

.overlay-visible {
  opacity: 1;
  pointer-events: auto;
}

.overlay-panel {
  width: min(100%, 360px);
  padding: 26px 22px 22px;
  border-radius: 28px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.10), rgba(255, 255, 255, 0.04)),
    rgba(25, 18, 13, 0.88);
  border: 1px solid rgba(255, 239, 211, 0.12);
  box-shadow: 0 24px 54px rgba(0, 0, 0, 0.34);
  text-align: left;
}

.overlay-panel-danger {
  background:
    linear-gradient(180deg, rgba(255, 107, 74, 0.16), rgba(255, 255, 255, 0.03)),
    rgba(25, 18, 13, 0.92);
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  letter-spacing: 0.22em;
  font-size: 0.74rem;
  text-transform: uppercase;
}

.overlay-panel h1,
.overlay-panel h2 {
  margin: 0;
  font-size: clamp(2.2rem, 7vw, 3.2rem);
  line-height: 0.95;
}

.overlay-panel h2 {
  font-size: clamp(2rem, 6vw, 2.6rem);
}

.overlay-copy {
  margin: 14px 0 18px;
  color: var(--text-soft);
  line-height: 1.55;
  font-size: 0.98rem;
}

.rule-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 18px;
}

.rule-chip {
  padding: 9px 12px;
  border-radius: 999px;
  background: rgba(255, 244, 224, 0.07);
  border: 1px solid rgba(255, 244, 224, 0.10);
  color: var(--text-main);
  font-size: 0.88rem;
}

.score-line {
  margin: 14px 0 0;
  font-size: 1.08rem;
}

.score-line strong {
  color: var(--accent);
}

.primary-button {
  appearance: none;
  width: 100%;
  border: 0;
  border-radius: 18px;
  padding: 15px 18px;
  background:
    linear-gradient(180deg, #ffd88a 0%, #ffba45 100%);
  color: #291507;
  font: inherit;
  font-weight: 800;
  font-size: 1rem;
  letter-spacing: 0.02em;
  box-shadow: 0 14px 24px rgba(255, 173, 56, 0.25);
}

.primary-button:active {
  transform: translateY(1px) scale(0.995);
}

.footer-tip {
  position: absolute;
  inset: auto 18px 18px;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 14px;
  border-radius: 18px;
  color: rgba(255, 244, 224, 0.78);
  background: rgba(15, 10, 7, 0.46);
  border: 1px solid rgba(255, 244, 224, 0.08);
  z-index: 2;
  font-size: 0.84rem;
  backdrop-filter: blur(10px);
}

@media (max-width: 460px) {
  .stage {
    border-radius: 28px;
  }

  .hud {
    inset: 14px 14px auto;
    gap: 8px;
  }

  .hud-card {
    padding: 11px 10px 9px;
    border-radius: 16px;
  }

  .footer-tip {
    inset: auto 14px 14px;
    font-size: 0.8rem;
  }
}

@media (max-height: 760px) {
  .overlay-panel {
    padding: 22px 18px 18px;
  }

  .overlay-copy {
    margin: 10px 0 14px;
    font-size: 0.92rem;
  }

  .rule-chip {
    font-size: 0.8rem;
    padding: 8px 10px;
  }
}