:root {
  --bg: #05050f;
  --panel: #0c0c1c;
  --ink: #e8e8f4;
  --dim: #7b7b9c;
  --accent: #ffd54a;
  --blue: #2a2ad8;
  --line: rgba(122,122,180,.22);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  background:
    radial-gradient(1100px 620px at 50% -10%, #17173a 0%, transparent 62%),
    var(--bg);
  color: var(--ink);
  font-family: ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, monospace;
  -webkit-text-size-adjust: 100%;
}

body {
  display: flex;
  justify-content: center;
  padding: 18px 16px 28px;
  padding-block-end: max(28px, env(safe-area-inset-bottom));
}

.shell {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* ---------- HUD ---------- */
.hud {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  padding: 10px 12px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 12px;
}

.hud-cell { display: flex; flex-direction: column; gap: 3px; min-width: 0; }

.hud-label {
  font-size: 10px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--dim);
}

.hud-value {
  font-size: 18px;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  line-height: 1.15;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.lives { letter-spacing: 1px; }

/* ---------- Stage ---------- */
.stage {
  position: relative;
  background: #000;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 448 / 496;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
  touch-action: none;
}

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 24px 20px;
  text-align: center;
  background: rgba(4, 4, 14, .86);
  backdrop-filter: blur(3px);
  transition: opacity .18s ease;
}

.overlay[hidden] { display: none; }

.title {
  margin: 0;
  font-size: clamp(30px, 10vw, 46px);
  letter-spacing: .1em;
  color: var(--accent);
  text-shadow: 0 0 22px rgba(255, 213, 74, .42);
}
.title span { color: #47d7ff; text-shadow: 0 0 22px rgba(71, 215, 255, .38); }

.overlay-text {
  margin: 0;
  font-size: 14px;
  line-height: 1.55;
  color: var(--ink);
  max-width: 30ch;
}

.hint {
  margin: 0;
  font-size: 11px;
  line-height: 1.6;
  color: var(--dim);
  max-width: 34ch;
}

.btn {
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  padding: 11px 22px;
  color: #10101f;
  background: var(--accent);
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  transition: transform .12s ease, box-shadow .12s ease;
  box-shadow: 0 6px 20px rgba(255, 213, 74, .26);
}
.btn:hover { transform: translateY(-1px); box-shadow: 0 8px 26px rgba(255, 213, 74, .36); }
.btn:active { transform: translateY(0); }

/* ---------- Touch pad ---------- */
.pad { display: none; }

@media (hover: none) and (pointer: coarse) {
  .pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-template-areas: ". up ." "left down right";
    gap: 8px;
    max-width: 260px;
    width: 100%;
    margin: 2px auto 0;
  }
  .pad-btn {
    font: inherit;
    font-size: 20px;
    padding: 16px 0;
    color: var(--ink);
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 12px;
    cursor: pointer;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
  }
  .pad-btn:active { background: #17173a; }
  .up { grid-area: up; } .left { grid-area: left; }
  .down { grid-area: down; } .right { grid-area: right; }
}

/* ---------- Footer ---------- */
.foot {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
}

.chip {
  font: inherit;
  font-size: 12px;
  padding: 8px 14px;
  color: var(--dim);
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 999px;
  cursor: pointer;
  transition: color .12s ease, border-color .12s ease;
}
.chip:hover { color: var(--ink); border-color: rgba(122,122,180,.5); }

@media (prefers-reduced-motion: reduce) {
  * { transition-duration: .01ms !important; }
}