:root {
  --bg: #0b1023;
  --card: rgba(13, 23, 41, 0.85);
  --text: #eaf3ff;
  --muted: #a4bfdc;
  --accent: #7be3ff;
  --accent-2: #ffe37b;
  --hole: #7fffb6;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial,
    sans-serif;
  color: var(--text);
  background: radial-gradient(circle at top, #15233f, var(--bg));
}

body {
  padding: 18px;
}

.shell {
  max-width: 960px;
  margin: 0 auto;
  display: grid;
  gap: 14px;
}

h1,
h2,
h3 {
  margin: 0 0 8px;
}

p,
ul {
  margin: 0;
  color: var(--muted);
}

.card {
  background: var(--card);
  padding: 12px;
  border-radius: 14px;
  border: 1px solid #243a5f;
}

.hud {
  display: grid;
  gap: 10px;
}

.stats {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 1rem;
}

.status {
  min-height: 1.4rem;
  color: var(--accent-2);
}

.game-wrap {
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid #243a5f;
  background: #071024;
}

#gameCanvas {
  width: 100%;
  aspect-ratio: 16/9;
  height: auto;
  display: block;
  background: linear-gradient(180deg, #205b3a 0%, #1f6d48 60%, #2a8a55 100%);
  touch-action: none;
  user-select: none;
  -webkit-user-select: none;
}

.controls {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

button {
  background: linear-gradient(180deg, #2f8fff, #1f62b8);
  color: white;
  border: 0;
  border-radius: 8px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
}

button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.rules {
  line-height: 1.45;
}

.rules ul {
  padding-left: 1.1rem;
  margin: 0;
}

@media (max-width: 760px) {
  body {
    padding: 10px;
  }

  .stats {
    gap: 8px;
    font-size: 14px;
  }
}