: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)) 14px max(16px, env(safe-area-inset-bottom));
  gap: 12px;
}

/* 점수바 */
.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; }
.streak-val, .best-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; }
.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; }

.message { margin: 0; text-align: center; font-size: 14px; font-weight: 600; color: #c7c7d0; min-height: 18px; }

/* 6×6 보드 */
.board {
  display: grid; grid-template-columns: repeat(6, 1fr); gap: 5px;
  width: min(94vw, 62vh, 420px); aspect-ratio: 1; margin: 6px auto 0;
  padding: 7px; background: #14141c; border: 1px solid #24242e; border-radius: 14px;
}
.cell {
  background: #1d1d26; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  position: relative; transition: background 0.12s ease;
}
.cell.mine { cursor: pointer; }
.cell.sel { box-shadow: inset 0 0 0 3px rgba(79,158,255,0.9); background: #232333; }
/* 이동 가능 칸 */
.cell.dest { cursor: pointer; }
.cell.dest::after { content: ''; width: 30%; height: 30%; border-radius: 50%; background: rgba(79,158,255,0.55); box-shadow: 0 0 8px rgba(79,158,255,0.4); }
.cell.dest:active { background: #262633; }
/* 화살 조준 칸 */
.cell.arrow-t { cursor: pointer; }
.cell.arrow-t::after { content: ''; width: 34%; height: 34%; border-radius: 3px; transform: rotate(45deg); background: rgba(240,140,72,0.5); box-shadow: 0 0 8px rgba(240,140,72,0.35); }
.cell.arrow-t:active { background: #2a2320; }
/* 마지막 수 */
.cell.last::before { content: ''; position: absolute; inset: 3px; border-radius: 8px; box-shadow: inset 0 0 0 2px rgba(255,255,255,0.22); pointer-events: none; }

/* 퀸(disc) */
.disc { width: 76%; height: 76%; border-radius: 50%; flex: 0 0 auto; }
.disc.d-dark { background: radial-gradient(circle at 34% 28%, #5a5970, #17171f 80%); border: 2px solid #4b4b5a; box-shadow: 0 2px 4px rgba(0,0,0,0.55); }
.disc.d-light { background: radial-gradient(circle at 34% 28%, #f6f1e2, #c9c0a4 78%); border: 2px solid #b0a889; box-shadow: 0 2px 4px rgba(0,0,0,0.5); }

/* 화살(차단 칸) — 불탄 타일 + 다이아 마크 */
.cell.blocked { background: #2a1d18; }
.cell.blocked::after {
  content: ''; width: 40%; height: 40%; border-radius: 4px; transform: rotate(45deg);
  background: radial-gradient(circle at 40% 35%, #f0985a, #a5471f 85%);
  box-shadow: 0 0 6px rgba(240,120,60,0.4), inset 0 1px 2px rgba(255,220,180,0.4);
}

/* 좌상단 ← 홈, 우상단 🏆 — 공통 chrome */
.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); } }

/* 오버레이 */
.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: 52px; font-weight: 800; font-variant-numeric: tabular-nums; letter-spacing: -0.04em; line-height: 1; }
.overlay-score .unit { font-size: 18px; font-weight: 700; color: #a0a0a0; letter-spacing: 0; }
.overlay-meta { margin: -4px 0 4px; font-size: 14px; font-weight: 600; color: #a0a0a0; }
.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; }