:root {
  color-scheme: dark;
  --bg: #12171d;
  --panel: #202832;
  --panel-2: #2b3541;
  --text: #fff4df;
  --muted: #b9c6cf;
  --gold: #f3c860;
  --red: #f25a4b;
  --green: #75cf72;
  --sky: #7fc1e0;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at 20% 4%, rgba(243, 200, 96, 0.18), transparent 30%),
    linear-gradient(145deg, #18202a, #0d1116);
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
}

.game-shell {
  width: min(1180px, 100%);
  min-height: 100dvh;
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto auto auto;
  align-content: start;
  gap: 10px;
  padding: 12px;
}

.topbar,
.hud {
  border: 1px solid rgba(255, 255, 255, 0.13);
  border-radius: 8px;
  background: rgba(32, 40, 50, 0.94);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.28);
}

.topbar {
  min-height: 70px;
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr) 86px;
  align-items: center;
  gap: 10px;
  padding: 10px;
}

.topbar a,
.topbar button,
.result-dialog button {
  height: 42px;
  border: 0;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--gold);
  color: #151515;
  font: inherit;
  font-weight: 900;
  text-decoration: none;
  cursor: pointer;
}

.topbar div {
  min-width: 0;
  text-align: center;
}

.topbar span,
.hud span,
.result-dialog span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.topbar strong {
  display: block;
  margin-top: 2px;
  font-size: clamp(26px, 5vw, 46px);
  line-height: 1;
}

.hud {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 8px;
  padding: 8px;
}

.hud div {
  min-width: 0;
  padding: 9px 10px;
  border-radius: 8px;
  background: var(--panel-2);
}

.hud strong {
  display: block;
  margin-top: 3px;
  font-size: 22px;
  line-height: 1.1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.stage-wrap {
  min-height: 0;
  border: 2px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  overflow: hidden;
  background: var(--sky);
  box-shadow: 0 22px 60px rgba(0, 0, 0, 0.38);
}

#game {
  width: 100%;
  height: min(620px, 58.18vw);
  aspect-ratio: 1100 / 640;
  display: block;
  touch-action: none;
}

.result-dialog {
  width: min(92vw, 460px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 8px;
  padding: 0;
  color: var(--text);
  background: #18202a;
}

.result-dialog::backdrop {
  background: rgba(0, 0, 0, 0.62);
}

.result-dialog form {
  padding: 22px;
}

.result-dialog h2 {
  margin: 6px 0 8px;
  font-size: 34px;
}

.result-dialog p {
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.result-dialog button {
  width: 100%;
  margin-top: 18px;
}

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

  .topbar {
    grid-template-columns: 64px minmax(0, 1fr) 64px;
  }

  .topbar a,
  .topbar button {
    height: 38px;
    font-size: 14px;
  }

  .hud {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  #game {
    height: 58.18vw;
    min-height: 0;
  }
}