:root{
  color-scheme:dark;
  --bg:#040915;
  --surface:rgba(8,16,34,0.7);
  --surface-strong:rgba(8,16,34,0.84);
  --line:rgba(135,226,255,0.14);
  --line-strong:rgba(135,226,255,0.28);
  --text:#f5fbff;
  --muted:#8aa0b9;
  --accent:#8be2ff;
  --accent-strong:#7fe5c7;
  --warm:#ffb36b;
  --danger:#ff7b74;
  --shadow:0 24px 80px rgba(0,0,0,0.4);
  --grid:rgba(135,226,255,0.06);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{
  margin:0;
  width:100%;
  height:100%;
  overflow:hidden;
  background:var(--bg);
  color:var(--text);
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
}
button,input{font:inherit}
button{border:0;cursor:pointer}
.app-shell{
  position:fixed;
  inset:0;
  width:100vw;
  height:100vh;
  height:100dvh;
  overflow:hidden;
  background:
    radial-gradient(circle at 50% 16%, rgba(139,226,255,0.1), transparent 28%),
    linear-gradient(180deg, rgba(8,18,38,0.64), rgba(4,9,21,0.96)),
    #040915;
}
.app-shell::before,
.app-shell::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
}
.app-shell::before{
  background:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size:48px 48px;
  opacity:.34;
}
.app-shell::after{
  background:
    linear-gradient(180deg, rgba(255,255,255,0.04), transparent 12%, transparent 88%, rgba(255,255,255,0.03)),
    repeating-linear-gradient(180deg, rgba(255,255,255,0.028), rgba(255,255,255,0.028) 1px, transparent 1px, transparent 5px);
  mix-blend-mode:screen;
  opacity:.22;
}
#gameCanvas{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  display:block;
  touch-action:none;
}
.top-hud{
  position:absolute;
  z-index:3;
  top:max(8px, calc(env(safe-area-inset-top) + 2px));
  left:max(10px, calc(env(safe-area-inset-left) + 8px));
  right:max(10px, calc(env(safe-area-inset-right) + 8px));
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:6px;
  pointer-events:none;
}
.stat-pill{
  min-width:0;
  padding:8px 10px;
  border-radius:13px;
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(12px);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,0.025), var(--shadow);
}
.stat-pill span{
  display:block;
  font-size:9px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--muted);
}
.stat-pill strong{
  display:block;
  margin-top:4px;
  font-size:20px;
  line-height:1;
}
.stat-pill--wide strong{font-size:16px}
.integrity-track{
  position:relative;
  margin-top:6px;
  width:100%;
  height:8px;
  border-radius:999px;
  background:rgba(255,255,255,0.06);
  overflow:hidden;
}
.integrity-fill{
  position:absolute;
  inset:0 auto 0 0;
  width:100%;
  border-radius:inherit;
  background:linear-gradient(90deg, var(--danger), var(--warm), var(--accent-strong));
  transform-origin:left center;
}
.hero-chip{
  position:absolute;
  z-index:3;
  left:50%;
  top:max(64px, calc(env(safe-area-inset-top) + 52px));
  transform:translateX(-50%);
  display:grid;
  gap:2px;
  min-width:min(68vw, 244px);
  padding:8px 12px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:linear-gradient(180deg, rgba(8,16,34,0.82), rgba(8,16,34,0.58));
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  text-align:center;
  pointer-events:none;
}
.eyebrow{
  margin:0;
  font-size:10px;
  letter-spacing:0.18em;
  text-transform:uppercase;
  color:var(--accent);
}
.hero-chip strong{
  font-size:13px;
  font-weight:700;
}
.hero-chip small{
  color:var(--muted);
  font-size:10px;
}
.judge-chip{
  position:absolute;
  z-index:3;
  left:50%;
  top:max(116px, calc(env(safe-area-inset-top) + 104px));
  transform:translateX(-50%);
  padding:7px 12px;
  border-radius:999px;
  background:rgba(8,16,34,0.62);
  border:1px solid var(--line);
  backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  pointer-events:none;
}
.judge-chip span{
  display:block;
  min-width:68px;
  text-align:center;
  font-size:11px;
  font-weight:700;
  letter-spacing:0.08em;
  text-transform:uppercase;
}
.status-line{
  position:absolute;
  z-index:3;
  left:50%;
  bottom:max(14px, calc(env(safe-area-inset-bottom) + 8px));
  transform:translateX(-50%);
  max-width:min(70vw, 340px);
  padding:7px 11px;
  border-radius:999px;
  background:rgba(8,16,34,0.58);
  border:1px solid var(--line);
  color:var(--muted);
  font-size:10px;
  text-align:center;
  backdrop-filter:blur(10px);
  pointer-events:none;
}
.touch-hint{
  position:absolute;
  z-index:3;
  left:50%;
  bottom:max(46px, calc(env(safe-area-inset-bottom) + 36px));
  transform:translateX(-50%);
  padding:6px 11px;
  border-radius:999px;
  background:rgba(139,226,255,0.1);
  border:1px solid rgba(139,226,255,0.24);
  color:#dffbf2;
  font-size:10px;
  letter-spacing:0.04em;
  text-align:center;
  transition:opacity .25s ease;
  pointer-events:none;
}
.touch-hint.hidden{opacity:0}
.overlay{
  position:absolute;
  inset:0;
  z-index:4;
  display:grid;
  place-items:center;
  padding:18px;
  background:rgba(2,6,12,0.22);
  backdrop-filter:blur(7px);
}
.overlay.hidden{display:none}
.overlay-card{
  width:min(92vw, 420px);
  padding:18px;
  border-radius:22px;
  background:var(--surface-strong);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.overlay-card--compact{
  width:min(86vw, 360px);
}
.overlay-card h1,.overlay-card h2{
  margin:0;
  line-height:0.95;
}
.overlay-card h1{font-size:clamp(28px, 9vw, 44px)}
.overlay-card h2{font-size:clamp(24px, 8vw, 34px)}
.subtitle{
  margin:12px 0 0;
  color:var(--muted);
  line-height:1.4;
}
.overlay-list{
  margin:14px 0 0;
  padding-left:18px;
  color:var(--muted);
  display:grid;
  gap:8px;
}
.primary-button,
.ghost-button{
  width:100%;
  padding:13px 16px;
  border-radius:999px;
  box-shadow:var(--shadow);
}
.primary-button{
  background:linear-gradient(135deg, var(--accent), var(--accent-strong));
  color:#03101b;
  font-weight:800;
}
.ghost-button{
  background:rgba(255,255,255,0.05);
  color:var(--text);
  border:1px solid var(--line);
}
.action-row,
.submit-row{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:10px;
  margin-top:14px;
}
.submit-row input{
  min-width:0;
  border:1px solid rgba(255,255,255,0.1);
  border-radius:999px;
  background:rgba(255,255,255,0.06);
  color:var(--text);
  padding:12px 14px;
}
.result-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0, 1fr));
  gap:10px;
  margin-top:14px;
}
.result-grid div{
  padding:12px;
  border-radius:16px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--line);
}
.result-grid span{
  display:block;
  font-size:10px;
  letter-spacing:0.16em;
  text-transform:uppercase;
  color:var(--muted);
}
.result-grid strong{
  display:block;
  margin-top:6px;
  font-size:22px;
}
.leaderboard-list{
  margin:16px 0 0;
  padding-left:22px;
  display:grid;
  gap:8px;
  max-height:26vh;
  overflow:auto;
  color:var(--muted);
}
.leaderboard-list strong{color:var(--text)}
@media (max-width: 640px){
  .top-hud{gap:5px}
  .stat-pill{padding:7px 8px;border-radius:12px}
  .stat-pill span{font-size:8px}
  .stat-pill strong{font-size:17px}
  .hero-chip{
    top:max(58px, calc(env(safe-area-inset-top) + 46px));
    min-width:min(62vw, 210px);
    padding:7px 10px;
  }
  .hero-chip .eyebrow{display:none}
  .hero-chip strong{font-size:12px}
  .hero-chip small{font-size:9px}
  .judge-chip{
    top:max(100px, calc(env(safe-area-inset-top) + 88px));
    padding:6px 10px;
  }
  .judge-chip span{font-size:10px}
  .status-line{
    max-width:min(62vw, 260px);
    font-size:9px;
  }
  .touch-hint{
    bottom:max(42px, calc(env(safe-area-inset-bottom) + 32px));
    font-size:9px;
  }
  .overlay-card{padding:16px}
  .action-row,.submit-row{grid-template-columns:1fr}
}