:root {
  color-scheme: dark;
  --bg: #07111f;
  --panel: rgba(7, 17, 31, 0.72);
  --border: rgba(145, 210, 255, 0.25);
  --text: #f3f8ff;
  --muted: #91a9c5;
  --accent: #7ee7ff;
  --player: linear-gradient(90deg, #50d2ff 0%, #8dfbff 100%);
  --enemy: linear-gradient(90deg, #ff705f 0%, #ffb387 100%);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  font-family: Inter, "PingFang SC", "Microsoft YaHei", sans-serif;
  background: radial-gradient(circle at top, #163359 0%, var(--bg) 52%, #020711 100%);
  color: var(--text);
}

body {
  position: relative;
}

#game {
  display: block;
  width: 100vw;
  height: 100vh;
}

.hud {
  position: fixed;
  top: 16px;
  left: 16px;
  right: 16px;
  z-index: 10;
  pointer-events: none;
}

.hud__top,
.bars,
.hud__notice {
  background: var(--panel);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  border-radius: 16px;
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.28);
}

.hud__top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
}

.hud__title {
  font-size: 22px;
  font-weight: 700;
}

.hud__tips,
.hud__notice,
.bar-group__label {
  color: var(--muted);
}

.hud__tips {
  margin-top: 6px;
  font-size: 13px;
}

.hud__stage {
  min-width: 130px;
  text-align: right;
  color: var(--accent);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.bars {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 12px;
  padding: 14px 16px;
}

.bar-group__label {
  margin-bottom: 8px;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.bar {
  height: 16px;
  border-radius: 999px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.bar__fill {
  height: 100%;
  width: 100%;
  border-radius: inherit;
  transition: width 90ms linear;
}

.bar__fill--player {
  background: var(--player);
}

.bar__fill--enemy {
  background: var(--enemy);
}

.hud__notice {
  margin-top: 12px;
  padding: 12px 16px;
  font-size: 13px;
}

.overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(3, 8, 18, 0.7);
  backdrop-filter: blur(8px);
}

.overlay.hidden {
  display: none;
}

.overlay__card {
  width: min(420px, calc(100vw - 32px));
  padding: 28px;
  border-radius: 24px;
  border: 1px solid rgba(126, 231, 255, 0.24);
  background: linear-gradient(180deg, rgba(11, 24, 44, 0.96), rgba(5, 10, 20, 0.96));
  text-align: center;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.45);
}

.overlay__card h1 {
  margin: 0 0 10px;
  font-size: 34px;
}

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

.overlay__card button {
  margin-top: 24px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, #50d2ff, #7ee7ff);
  color: #032033;
  font-size: 16px;
  font-weight: 700;
  padding: 12px 28px;
  cursor: pointer;
  pointer-events: auto;
}

.overlay__card button:hover {
  transform: translateY(-1px);
}

@media (max-width: 860px) {
  .hud {
    top: 10px;
    left: 10px;
    right: 10px;
  }

  .hud__top {
    flex-direction: column;
  }

  .hud__stage {
    text-align: left;
  }

  .bars {
    grid-template-columns: 1fr;
  }

  .hud__title {
    font-size: 18px;
  }
}