:root {
  color-scheme: dark;
  --bg: oklch(16% 0.035 210);
  --surface: oklch(22% 0.035 215);
  --surface-strong: oklch(30% 0.045 215);
  --text: oklch(96% 0.012 95);
  --muted: oklch(77% 0.028 215);
  --accent: oklch(74% 0.16 168);
  --gold: oklch(84% 0.16 86);
  --danger: oklch(64% 0.2 28);
  --violet: oklch(70% 0.15 290);
}

* {
  box-sizing: border-box;
}

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

body {
  margin: 0;
  min-height: 100dvh;
  display: grid;
  place-items: center;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 10%, oklch(33% 0.08 188 / 0.55), transparent 28rem),
    radial-gradient(circle at 88% 90%, oklch(30% 0.09 292 / 0.44), transparent 24rem),
    linear-gradient(145deg, oklch(18% 0.04 217), oklch(11% 0.035 230));
  color: var(--text);
  font-family: "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
}

button {
  font: inherit;
}

.game-shell {
  width: min(100vw, 1180px);
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  gap: 10px;
  padding: 12px;
}

.hud {
  display: grid;
  grid-template-columns: 0.7fr 0.8fr minmax(180px, 1.35fr) 0.8fr 0.7fr;
  gap: 8px;
}

.hud-card,
.control-btn,
.dpad button {
  border: 1px solid oklch(100% 0 0 / 0.13);
  border-radius: 8px;
  background: color-mix(in oklch, var(--surface) 88%, black);
  box-shadow: 0 14px 34px oklch(0% 0 0 / 0.28);
}

.hud-card {
  min-width: 0;
  padding: 9px 11px;
}

.hud-card span {
  display: block;
  color: var(--muted);
  font-size: 12px;
}

.hud-card strong {
  display: block;
  margin-top: 2px;
  overflow: hidden;
  color: var(--text);
  font-size: 22px;
  line-height: 1.08;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.hud-card--wide strong {
  color: var(--accent);
  font-size: 18px;
}

.play-area {
  position: relative;
  min-height: 0;
}

#game {
  width: 100%;
  height: 100%;
  min-height: 440px;
  display: block;
  border: 2px solid oklch(100% 0 0 / 0.15);
  border-radius: 8px;
  background: oklch(12% 0.02 220);
  box-shadow: 0 26px 70px oklch(0% 0 0 / 0.44);
  touch-action: none;
}

.toast {
  position: absolute;
  left: 50%;
  top: 18px;
  max-width: min(620px, calc(100% - 28px));
  padding: 9px 14px;
  border: 1px solid oklch(100% 0 0 / 0.15);
  border-radius: 8px;
  background: oklch(13% 0.025 215 / 0.84);
  color: var(--text);
  font-weight: 700;
  line-height: 1.3;
  text-align: center;
  transform: translateX(-50%);
  transition: opacity 180ms ease, transform 180ms ease;
  pointer-events: none;
}

.toast.is-hidden {
  opacity: 0;
  transform: translate(-50%, -8px);
}

.controls {
  display: grid;
  grid-template-columns: 92px 92px minmax(210px, 1fr) 92px 92px;
  gap: 8px;
  align-items: center;
  padding-bottom: max(0px, env(safe-area-inset-bottom));
}

.control-btn,
.dpad button {
  min-height: 46px;
  color: var(--text);
  cursor: pointer;
  font-weight: 800;
}

.control-btn {
  background: color-mix(in oklch, var(--surface-strong) 88%, black);
}

.control-btn:hover,
.dpad button:hover {
  border-color: color-mix(in oklch, var(--accent) 65%, white 6%);
}

.control-btn:focus-visible,
.dpad button:focus-visible {
  outline: 3px solid color-mix(in oklch, var(--accent) 74%, white);
  outline-offset: 2px;
}

.control-btn:active,
.dpad button:active,
.dpad button.is-active {
  transform: translateY(1px);
  background: color-mix(in oklch, var(--surface-strong) 68%, var(--accent));
}

.dpad {
  width: min(280px, 100%);
  justify-self: center;
  display: grid;
  grid-template-columns: repeat(3, 54px);
  grid-template-rows: repeat(2, 46px);
  gap: 6px;
  justify-content: center;
}

.dpad button {
  padding: 0;
  font-size: 22px;
}

#upBtn {
  grid-column: 2;
}

#leftBtn {
  grid-column: 1;
}

#downBtn {
  grid-column: 2;
}

#rightBtn {
  grid-column: 3;
}

@media (max-width: 760px) {
  body {
    overflow: auto;
  }

  .game-shell {
    min-height: 100dvh;
    gap: 8px;
    padding: 8px;
  }

  .hud {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .hud-card {
    padding: 8px;
  }

  .hud-card--wide {
    grid-column: 1 / -1;
    grid-row: 2;
  }

  .hud-card span {
    font-size: 11px;
  }

  .hud-card strong {
    font-size: 17px;
  }

  .hud-card--wide strong {
    font-size: 15px;
  }

  #game {
    height: 58dvh;
    min-height: 380px;
  }

  .controls {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .dpad {
    grid-column: 1 / -1;
    grid-row: 1;
  }

  .control-btn {
    min-height: 42px;
    font-size: 14px;
  }
}

@media (max-width: 420px) {
  .hud {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hud-card--wide {
    grid-column: 1 / -1;
  }

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

  .dpad {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}