:root { color-scheme: dark; }

* { box-sizing: border-box; touch-action: manipulation; }

html, body {
  margin: 0; padding: 0;
  height: 100dvh;
  overflow: hidden;
  background: #0a0a0a;
  color: #f5f5f5;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Apple SD Gothic Neo", "Noto Sans KR", sans-serif;
  -webkit-font-smoothing: antialiased;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
  overscroll-behavior: none;
}

main {
  height: 100%;
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  padding:
    max(60px, env(safe-area-inset-top))
    16px
    max(20px, env(safe-area-inset-bottom));
  gap: 14px;
}

.score-bar { display: flex; gap: 8px; align-items: stretch; }
.score-box {
  flex: 1; background: #161616; border: 1px solid #2a2a2a; border-radius: 12px;
  padding: 8px 12px; text-align: center; min-width: 0;
}
.score-label {
  display: block; font-size: 11px; font-weight: 700; text-transform: uppercase;
  letter-spacing: 0.08em; color: #a0a0a0;
}
.score-val, .lives-val {
  display: block; font-size: 22px; font-weight: 800;
  font-variant-numeric: tabular-nums; letter-spacing: -0.02em;
  color: #f5f5f5; margin-top: 2px; line-height: 1.1;
}
.lives-val { color: #ff5577; letter-spacing: 0.1em; }
.lives-val.empty { color: #444; }
.new-btn {
  flex: 0 0 auto; font: inherit; color: #fff; background: #4f9eff;
  border: none; border-radius: 12px; padding: 0 18px; min-height: 56px;
  cursor: pointer; font-weight: 700; font-size: 14px;
  -webkit-tap-highlight-color: transparent;
}
.new-btn:active { background: #3d8ae8; }

.canvas-wrap {
  flex: 1;
  background: #0f0f12;
  border: 1px solid #1d1d22;
  border-radius: 12px;
  overflow: hidden;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
canvas.stage {
  display: block;
  touch-action: none;
}

.hint {
  margin: 0; text-align: center; font-size: 13px; color: #888;
  letter-spacing: 0.04em;
}

.home-link, .hof-link {
  position: fixed;
  top: max(12px, env(safe-area-inset-top));
  z-index: 10;
  width: 40px; height: 40px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.35); color: #fff;
  text-decoration: none; font-size: 20px; font-weight: 600;
  line-height: 1;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
  transition: background 0.15s ease;
  border: none; cursor: pointer; font-family: inherit;
}
.home-link { left: max(12px, env(safe-area-inset-left)); }
.hof-link { right: max(12px, env(safe-area-inset-right)); }

@media (hover: hover) {
  .home-link:hover, .hof-link:hover { background: rgba(0, 0, 0, 0.55); }
}

.overlay {
  position: fixed; inset: 0;
  background: rgba(0, 0, 0, 0.55);
  display: flex; align-items: center; justify-content: center;
  z-index: 20; padding: 20px;
  backdrop-filter: blur(2px); -webkit-backdrop-filter: blur(2px);
}
.overlay[hidden] { display: none; }
.overlay-card {
  background: #161616; border: 1px solid #2a2a2a; border-radius: 18px;
  padding: 24px 22px;
  display: flex; flex-direction: column; gap: 12px; align-items: center;
  text-align: center;
  min-width: 240px; max-width: 320px; width: 100%;
}
.overlay-card h2 {
  margin: 0; font-size: 22px; font-weight: 800; letter-spacing: -0.02em;
}
.overlay-score {
  margin: 0; font-size: 56px; font-weight: 800;
  font-variant-numeric: tabular-nums; letter-spacing: -0.04em; line-height: 1;
}
.overlay-score .unit {
  font-size: 22px; font-weight: 600; color: #c0c0c0; margin-left: 6px;
  letter-spacing: 0;
}
.overlay-meta {
  margin: 0; font-size: 14px; color: #a0a0a0;
  font-variant-numeric: tabular-nums; min-height: 1em;
}
.overlay-card button {
  font: inherit; color: #fff;
  background: rgba(255, 255, 255, 0.10);
  border: 1px solid rgba(255, 255, 255, 0.22);
  border-radius: 999px;
  padding: 12px 20px; min-height: 44px; cursor: pointer;
  font-weight: 600; font-size: 14px;
  width: 100%;
  -webkit-tap-highlight-color: transparent;
}
.overlay-card button:active { background: rgba(255, 255, 255, 0.18); }
.overlay-card .save-btn { background: #4f9eff; border-color: #4f9eff; }
.overlay-card .save-btn:active { background: #3d8ae8; }