:root {
  --bg: #0b0e14;
  --bg2: #121722;
  --card: #161c28;
  --border: #2a3344;
  --text: #e8edf5;
  --muted: #8b9bb4;
  --blue: #7eb6ff;
  --red: #ff5c5c;
  --green: #3dd68c;
  --orange: #e8a54b;
  --cream: #f6f0e6;
  --espresso: #3b2416;
  --terracotta: #c4785a;
}
* { box-sizing: border-box; }
html, body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
  font-size: 14px;
  line-height: 1.45;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  user-select: none;
}
body {
  background:
    radial-gradient(ellipse at 50% -10%, #1a140c 0%, transparent 45%),
    radial-gradient(ellipse at 80% 100%, #0c1a12 0%, transparent 40%),
    var(--bg);
  min-height: 100dvh;
}
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap {
  max-width: 560px;
  margin: 0 auto;
  padding: 12px 12px 24px;
}
.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}
.brand h1 {
  margin: 0;
  font-size: 1.35rem;
  letter-spacing: .04em;
  color: var(--cream);
}
.brand .kicker {
  margin: 0;
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--terracotta);
  font-weight: 600;
}
.back {
  font-size: .8rem;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--bg2);
}
.back:hover { color: var(--text); border-color: var(--blue); text-decoration: none; }

.hud {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 6px;
  margin-bottom: 8px;
}
.hud-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 10px;
  text-align: center;
}
.hud-item .lbl {
  display: block;
  font-size: .65rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--muted);
}
.hud-item .val {
  font-variant-numeric: tabular-nums;
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--green);
}
.hud-item.lives .val { color: var(--red); }
.hud-item.wave .val { color: var(--orange); }

.stage-wrap {
  position: relative;
  background: #070a10;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 28px rgba(0,0,0,.35);
}
#game {
  display: block;
  width: 100%;
  height: auto;
  image-rendering: pixelated;
  image-rendering: crisp-edges;
  background: #05070c;
  touch-action: none;
}
.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: rgba(5,7,12,.78);
  text-align: center;
  padding: 20px;
  z-index: 2;
}
.overlay.hidden { display: none; }
.overlay h2 {
  margin: 0;
  font-size: 1.6rem;
  color: var(--cream);
  letter-spacing: .06em;
}
.overlay p { margin: 0; color: var(--muted); max-width: 280px; }
.overlay .score-big {
  font-size: 1.2rem;
  color: var(--green);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.btn {
  appearance: none;
  border: 1px solid var(--border);
  background: var(--espresso);
  color: var(--cream);
  font-weight: 700;
  font-size: .95rem;
  padding: 10px 18px;
  border-radius: 8px;
  cursor: pointer;
  letter-spacing: .04em;
}
.btn:hover { background: #5c3a24; }
.btn:active { transform: scale(.98); }
.btn.secondary {
  background: var(--bg2);
  color: var(--text);
}
.btn.secondary:hover { border-color: var(--blue); }
.btn.danger {
  background: #2a1010;
  border-color: var(--red-border, #8a2a2a);
  color: var(--red);
}

.controls {
  display: grid;
  grid-template-columns: 1fr 1fr 1.2fr;
  gap: 8px;
  margin-top: 10px;
}
.ctrl-btn {
  min-height: 52px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  font-size: 1.1rem;
  font-weight: 700;
  cursor: pointer;
  -webkit-user-select: none;
  user-select: none;
}
.ctrl-btn:active, .ctrl-btn.pressed {
  background: #1e2838;
  border-color: var(--blue);
  color: var(--blue);
}
.ctrl-btn.fire {
  background: #1a140c;
  border-color: var(--orange);
  color: var(--orange);
  font-size: 1rem;
  letter-spacing: .06em;
}
.ctrl-btn.fire:active, .ctrl-btn.fire.pressed {
  background: #2a1c0c;
}
.hint {
  margin: 8px 0 0;
  font-size: .75rem;
  color: var(--muted);
  text-align: center;
}

.panel {
  margin-top: 16px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px;
}
.panel h2 {
  margin: 0 0 4px;
  font-size: 1rem;
  color: var(--cream);
}
.panel .sub {
  margin: 0 0 12px;
  font-size: .8rem;
  color: var(--muted);
}
.uploads {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}
@media (max-width: 420px) {
  .uploads { grid-template-columns: 1fr; }
}
.upload-slot {
  background: var(--bg2);
  border: 1px dashed var(--border);
  border-radius: 10px;
  padding: 10px;
  text-align: center;
}
.upload-slot label {
  display: block;
  font-size: .72rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 8px;
  font-weight: 600;
}
.upload-slot .preview {
  width: 64px;
  height: 64px;
  margin: 0 auto 8px;
  border-radius: 50%;
  object-fit: cover;
  background: #0a0d14;
  border: 2px solid var(--border);
  display: block;
}
.upload-slot input[type=file] {
  width: 100%;
  font-size: .7rem;
  color: var(--muted);
}
.panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}
.foot {
  margin-top: 14px;
  text-align: center;
  font-size: .72rem;
  color: var(--muted);
}