:root {
  color-scheme: dark;
  --ink: #f6f7fb;
  --muted: #a8adb8;
  --panel: rgba(16, 18, 24, 0.84);
  --line: rgba(246, 247, 251, 0.14);
  --binance: #f3ba2f;
  --green: #25c26e;
  --red: #f05252;
  --blue: #58a6ff;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  color: var(--ink);
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    "Microsoft YaHei", sans-serif;
  background:
    radial-gradient(circle at 20% 10%, rgba(243, 186, 47, 0.22), transparent 26%),
    radial-gradient(circle at 82% 24%, rgba(37, 194, 110, 0.16), transparent 24%),
    linear-gradient(145deg, #080a10 0%, #111827 48%, #15110a 100%);
  overflow: hidden;
}

button {
  border: 0;
  cursor: pointer;
  font: inherit;
}

.game-shell {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 12px;
  width: min(100vw, 1040px);
  height: 100dvh;
  margin: 0 auto;
  padding: 16px;
}

.hud {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.hud div {
  min-height: 64px;
  padding: 10px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.26);
}

.hud span {
  display: block;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0;
}

.hud strong {
  display: block;
  margin-top: 2px;
  color: var(--binance);
  font-size: clamp(24px, 5vw, 34px);
  line-height: 1;
}

.stage-wrap {
  position: relative;
  min-height: 0;
  border: 1px solid rgba(243, 186, 47, 0.32);
  border-radius: 8px;
  background: #0b0f18;
  box-shadow: 0 22px 56px rgba(0, 0, 0, 0.38);
  overflow: hidden;
  touch-action: none;
}

canvas {
  display: block;
  width: 100%;
  height: 100%;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 14px;
  padding: 24px;
  text-align: center;
  background: rgba(8, 10, 16, 0.72);
  backdrop-filter: blur(9px);
}

.overlay.hidden {
  display: none;
}

.badge {
  padding: 7px 10px;
  border: 1px solid rgba(243, 186, 47, 0.42);
  border-radius: 8px;
  color: #111;
  background: var(--binance);
  font-size: 12px;
  font-weight: 900;
}

.overlay h1 {
  max-width: 860px;
  margin: 0;
  color: var(--ink);
  font-size: clamp(32px, 7vw, 72px);
  line-height: 1.05;
  letter-spacing: 0;
}

.overlay p {
  max-width: 650px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(15px, 2.6vw, 18px);
  line-height: 1.65;
}

.wallet-status {
  min-height: 24px;
  max-width: 560px;
  color: var(--binance);
  font-size: 14px;
}

.contract-link {
  display: block;
  width: min(100%, 680px);
  padding: 9px 12px;
  border: 1px solid rgba(243, 186, 47, 0.34);
  border-radius: 8px;
  color: var(--binance);
  background: rgba(0, 0, 0, 0.28);
  font-size: clamp(12px, 2.3vw, 14px);
  font-weight: 800;
  line-height: 1.4;
  overflow-wrap: anywhere;
  text-decoration: none;
}

.contract-link:hover {
  border-color: rgba(243, 186, 47, 0.72);
  background: rgba(243, 186, 47, 0.1);
}

.overlay button,
#pauseBtn {
  min-width: 132px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 8px;
  color: #111;
  background: var(--binance);
  box-shadow: 0 12px 24px rgba(243, 186, 47, 0.22);
  font-weight: 800;
}

.controls {
  display: grid;
  grid-template-columns: 72px minmax(120px, 1fr) 72px;
  gap: 10px;
}

.controls button {
  min-height: 56px;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--ink);
  background: var(--panel);
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.22);
}

#leftBtn,
#rightBtn {
  color: var(--binance);
  font-size: 34px;
  font-weight: 900;
  line-height: 1;
}

@media (max-width: 640px) {
  .game-shell {
    padding: 10px;
    gap: 8px;
  }

  .hud div {
    min-height: 56px;
    padding: 8px 10px;
  }
}