: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: 16px;
}

/* 점수바: SCORE | BEST | New 버튼 */
.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,
.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; }

/* 게임 영역 — 보드/캠버스/그리드 등을 여기에 */
#game {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 0;   /* 작은 폰에서 아래 조작 요소가 화면 밖으로 밀리지 않게 */
}

/* 좌상단 ← 홈, 우상단 🏆 명예의 전당 — 모든 게임 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 (게임 종료 / 완료 시 점수 + 저장 버튼) */
.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-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;
}

/* ─── Shobu ──────────────────────────────────────────────── */
.sb-wrap { display: flex; flex-direction: column; align-items: center; gap: 8px; width: 100%; height: 100%; min-height: 0; }
.sb-head { font-size: 12px; font-weight: 800; color: #a8b4c4; text-align: center; }
.sb-head b { color: #f0f4fa; font-variant-numeric: tabular-nums; }

.sb-boards { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; width: 100%; max-width: 360px; }
.sb-board {
  position: relative; display: grid; grid-template-columns: repeat(4, 1fr); gap: 3px;
  padding: 5px; border-radius: 10px; border: 1px solid rgba(255, 255, 255, 0.1);
}
.sb-board.light { background: #33404f; }
.sb-board.dark  { background: #151b23; }
/* 공격 판은 소극 판과 '색이 달라야' 하므로 색이 한눈에 구분돼야 한다.
   배경만으로는 색각 이상에서 애매해서 모서리에 ○(밝음)·●(어두움) 표시를 둔다. */
.sb-board::after {
  content: attr(data-mark); position: absolute; top: 2px; right: 5px;
  font-size: 9px; font-weight: 800; color: #93a1b3; line-height: 1;
}
.sb-board.mine { box-shadow: inset 0 0 0 2px rgba(127, 200, 255, 0.6); }
.sb-board.pboard { box-shadow: inset 0 0 0 2px #7fc8ff; }
.sb-board.aboard { box-shadow: inset 0 0 0 2px #f0d68a; }

.sb-cell {
  position: relative; aspect-ratio: 1; min-width: 0; min-height: 26px;
  border-radius: 6px; border: 1px solid rgba(255, 255, 255, 0.07);
  background: rgba(255, 255, 255, 0.045); padding: 0;
  font: inherit; cursor: pointer; -webkit-tap-highlight-color: transparent;
  display: flex; align-items: center; justify-content: center;
}
.sb-cell:disabled { cursor: default; }
/* 파랑과 주황은 **휘도가 거의 같다**(대비 1.17:1). 색만으로 구분하게 두면
   색각 이상이나 흑백 화면에서 두 편을 구별할 수 없다 → 모양도 다르게 둔다:
   내 돌은 동그라미, 상대 돌은 둥근 네모. */
.sb-stone { width: 74%; height: 74%; box-shadow: 0 1px 0 rgba(0,0,0,0.45); }
.sb-stone.me  { background: #7fc8ff; border-radius: 50%; }
.sb-stone.foe { background: #f0a24f; border-radius: 22%; }
.sb-cell.can .sb-stone { box-shadow: 0 0 0 2px #8fd0a0, 0 1px 0 rgba(0,0,0,0.45); }
.sb-cell.sel .sb-stone { box-shadow: 0 0 0 3px #f0d68a, 0 1px 0 rgba(0,0,0,0.45); }
.sb-cell.dest::before {
  content: ''; width: 34%; height: 34%; border-radius: 50%;
  background: rgba(143, 208, 160, 0.85); position: absolute;
}
.sb-cell.dest.push::before { background: rgba(240, 163, 79, 0.9); width: 44%; height: 44%; }
.sb-cell.last { box-shadow: inset 0 0 0 2px rgba(240, 214, 138, 0.55); }

/* 키 큰 폰에서 아래가 비지 않게: 남는 높이를 판 위·아래로 나눠 갖는다 */
.sb-boards { margin-top: auto; }
.sb-msg { margin-top: auto; font-size: 12.5px; font-weight: 800; color: #a8b4c4; text-align: center; min-height: 32px; padding: 0 8px; }
.sb-msg.ok { color: #8fd0a0; }
.sb-msg.warn { color: #f0d68a; }
.sb-btns { min-height: 0; margin-bottom: auto; }
.sb-undo {
  font: inherit; font-weight: 800; font-size: 12px; padding: 7px 14px; min-height: 36px;
  border-radius: 9px; border: 1px solid rgba(255,255,255,0.18); background: #222b36; color: #dbe3ee;
  cursor: pointer; -webkit-tap-highlight-color: transparent;
}

.overlay-howto {
  margin: 0; font-size: 13px; line-height: 1.55; color: #c9c9c9;
  text-align: left; white-space: pre-line; max-height: 46vh;
  overflow-y: auto; touch-action: pan-y;
}
.overlay-sub { margin: 0; font-size: 13px; color: #a0a0a0; }
.overlay-score { font-variant-numeric: tabular-nums; }

@media (max-height: 620px) { .sb-wrap { gap: 5px; } }