:root {
  color-scheme: light;
  --ink: #17324d;
  --muted: #55728d;
  --cream: #fffaf0;
  --sun: #ffd65a;
  --leaf: #57bd79;
  --leaf-dark: #27885a;
  --sky: #86dcff;
  --coral: #ff705d;
  --panel: rgba(255, 255, 255, 0.92);
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
  margin: 0;
}

body {
  overflow-x: hidden;
  background:
    radial-gradient(circle at 10% 10%, rgba(255, 255, 255, 0.9), transparent 26rem),
    linear-gradient(160deg, #dff7ff 0%, #fff4cf 58%, #ffe4c4 100%);
  color: var(--ink);
  font-family: "Arial Rounded MT Bold", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
}

button {
  font: inherit;
}

.game-shell {
  width: min(1440px, 100%);
  margin: 0 auto;
  padding: 18px clamp(12px, 3vw, 36px) 24px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 14px;
}

.eyebrow {
  margin: 0 0 4px;
  color: #267b70;
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  letter-spacing: -0.04em;
}

.top-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 8px;
}

.pill,
.primary-button {
  border: 0;
  cursor: pointer;
  font-weight: 900;
  transition: transform 150ms ease, box-shadow 150ms ease;
}

.pill:hover,
.primary-button:hover {
  transform: translateY(-2px);
}

.pill {
  border: 2px solid rgba(23, 50, 77, 0.1);
  border-radius: 999px;
  padding: 10px 15px;
  background: var(--panel);
  color: var(--ink);
  box-shadow: 0 6px 16px rgba(40, 85, 117, 0.12);
}

.coach-button {
  background: #fff2b8;
}

.stage {
  position: relative;
  overflow: hidden;
  border: 5px solid white;
  border-radius: 28px;
  background: var(--sky);
  box-shadow: 0 24px 70px rgba(50, 93, 120, 0.25);
  isolation: isolate;
}

canvas {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  cursor: pointer;
  touch-action: none;
}

.hud {
  position: absolute;
  top: 14px;
  left: 14px;
  display: flex;
  gap: 8px;
  pointer-events: none;
}

.hud-chip {
  min-width: 78px;
  border: 2px solid rgba(255, 255, 255, 0.7);
  border-radius: 15px;
  padding: 7px 11px;
  background: rgba(24, 50, 76, 0.8);
  color: white;
  box-shadow: 0 5px 14px rgba(23, 50, 77, 0.18);
  backdrop-filter: blur(8px);
}

.hud-chip span,
.hud-chip strong {
  display: block;
}

.hud-chip span {
  font-size: 0.65rem;
  opacity: 0.72;
}

.hud-chip strong {
  font-size: 0.82rem;
}

.coach-panel {
  position: absolute;
  right: 16px;
  bottom: 16px;
  display: flex;
  width: min(370px, calc(100% - 32px));
  gap: 10px;
  border: 3px solid rgba(255, 255, 255, 0.85);
  border-radius: 20px;
  padding: 12px 14px;
  background: rgba(255, 250, 226, 0.94);
  box-shadow: 0 12px 30px rgba(23, 50, 77, 0.22);
  transform-origin: bottom right;
  transition: opacity 160ms ease, transform 160ms ease;
  pointer-events: none;
}

.coach-panel.hidden {
  opacity: 0;
  transform: scale(0.92) translateY(8px);
}

.coach-avatar {
  display: grid;
  flex: 0 0 44px;
  height: 44px;
  place-items: center;
  border-radius: 14px;
  background: #b9edc7;
  font-size: 1.55rem;
}

.coach-panel strong {
  font-size: 0.88rem;
}

.coach-panel p {
  margin: 3px 0 1px;
  color: #294b67;
  font-size: 0.78rem;
  line-height: 1.35;
}

.coach-panel small {
  color: #6f8799;
  font-size: 0.62rem;
}

.overlay {
  position: absolute;
  inset: 0;
  display: grid;
  visibility: hidden;
  place-items: center;
  padding: 24px;
  background: rgba(25, 54, 77, 0.46);
  opacity: 0;
  transition: opacity 180ms ease, visibility 180ms ease;
  backdrop-filter: blur(4px);
  pointer-events: none;
}

.overlay.visible {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
}

.card {
  width: min(460px, 100%);
  border: 5px solid white;
  border-radius: 28px;
  padding: clamp(24px, 5vw, 42px);
  background: var(--cream);
  text-align: center;
  box-shadow: 0 22px 60px rgba(22, 47, 68, 0.32);
}

.card-icon {
  display: block;
  margin-bottom: 8px;
  font-size: 3rem;
}

.card h2 {
  margin-bottom: 12px;
  font-size: clamp(1.55rem, 4vw, 2.35rem);
}

.card p:not(.eyebrow) {
  color: var(--muted);
  line-height: 1.55;
}

.primary-button {
  border-radius: 16px;
  padding: 13px 26px;
  background: var(--coral);
  color: white;
  box-shadow: 0 7px 0 #c8463b, 0 12px 24px rgba(200, 70, 59, 0.2);
}

.primary-button:active {
  transform: translateY(5px);
  box-shadow: 0 2px 0 #c8463b;
}

footer {
  padding: 14px 4px 0;
  color: #526f84;
  font-size: 0.82rem;
  text-align: center;
}

footer p {
  margin-bottom: 0;
}

@media (max-width: 700px) {
  .game-shell {
    padding: 10px 8px 18px;
  }

  .topbar {
    align-items: flex-start;
  }

  .top-actions {
    gap: 5px;
  }

  .pill {
    padding: 8px 10px;
    font-size: 0.72rem;
  }

  .stage {
    border-width: 3px;
    border-radius: 18px;
  }

  .hud {
    top: 7px;
    left: 7px;
    gap: 4px;
  }

  .hud-chip {
    min-width: 58px;
    border-radius: 10px;
    padding: 4px 7px;
  }

  .hud-chip span {
    display: none;
  }

  .hud-chip strong {
    font-size: 0.65rem;
  }

  .coach-panel {
    right: 8px;
    bottom: 8px;
    width: min(285px, calc(100% - 16px));
    padding: 8px 10px;
  }

  .coach-avatar {
    flex-basis: 34px;
    height: 34px;
    font-size: 1.1rem;
  }

  .coach-panel strong {
    font-size: 0.7rem;
  }

  .coach-panel p {
    font-size: 0.64rem;
  }

  .coach-panel small {
    display: none;
  }

  footer {
    font-size: 0.7rem;
  }
}