: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;
}

/* 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;
}

/* ─── 파노로나 ─────────────────────────────────────────────
   5×9 교차점 판. 강한 점(대각선을 쓸 수 있는 점)은 조금 더 크게 그린다. */
#game {
  flex-direction: column;
  justify-content: center;
  align-items: stretch;
  gap: 12px;
  min-height: 0;
}

.fa-counts { display: flex; gap: 8px; justify-content: center; }

.fa-c {
  min-width: 54px;
  text-align: center;
  padding: 4px 12px;
  border-radius: 999px;
  background: #161616;
  border: 1px solid #2a2a2a;
  font-size: 15px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.fa-c.me { color: #6ee787; }
.fa-c.foe { color: #ff8a4f; }

.fa-wrap { display: flex; justify-content: center; }

/* 판은 가로가 긴 5×9라 화면 폭에 맞춘다 */
.fa-board {
  position: relative;
  display: grid;
  grid-template-columns: repeat(9, 1fr);
  gap: 0;
  width: min(96vw, 380px);
  aspect-ratio: 9 / 5;
  padding: 4px;
  border-radius: 12px;
  background: #12161d;
  border: 1px solid #232a36;
}

/* 교차점을 잇는 선 — 대각선은 강한 점에만 그어진다 */
.fa-lines {
  position: absolute;
  inset: 4px;
  width: calc(100% - 8px);
  height: calc(100% - 8px);
  pointer-events: none;
}

.fa-lines line {
  stroke: rgba(255, 255, 255, 0.16);
  stroke-width: 1;
  vector-effect: non-scaling-stroke;
}

.fa-pt {
  position: relative;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* 교차점 자체 */
.fa-pt::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.18);
}

.fa-pt.strong::before { width: 7px; height: 7px; background: rgba(255, 255, 255, 0.30); }

/* 말 */
.fa-pt > span {
  position: absolute;
  width: 66%;
  aspect-ratio: 1;
  border-radius: 50%;
  transition: transform 0.1s ease;
}

.fa-pt.me > span { background: #6ee787; box-shadow: 0 0 8px rgba(110,231,135,0.5), inset 0 -2px 0 rgba(0,0,0,0.25); }
.fa-pt.foe > span { background: #ff8a4f; box-shadow: 0 0 8px rgba(255,138,79,0.5), inset 0 -2px 0 rgba(0,0,0,0.25); }
.fa-pt.sel > span { outline: 2px solid #fff; outline-offset: 1px; transform: scale(1.12); }
.fa-pt.can > span { outline: 2px solid rgba(255,255,255,0.35); outline-offset: 1px; }
.fa-pt.dead > span { outline: 2px solid #ff5a5a; outline-offset: 2px; }

/* 갈 수 있는 빈 교차점 */
.fa-pt.to::after {
  content: "";
  position: absolute;
  width: 34%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.55);
}

.fa-msg {
  margin: 0;
  min-height: 22px;
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: #b8b8b8;
  padding: 0 8px;
}

.fa-msg.ok { color: #6ee787; }
.fa-msg.bad { color: #ff6b6b; }

.fa-acts { display: flex; gap: 10px; justify-content: center; min-height: 50px; }

.fa-btn {
  flex: 1;
  max-width: 170px;
  font: inherit;
  font-weight: 700;
  font-size: 14px;
  color: #f5f5f5;
  border-radius: 13px;
  min-height: 50px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  touch-action: manipulation;
}

.fa-btn[hidden] { display: none; }
.fa-btn.ap { background: #2c1616; border: 1px solid #5a2a2a; color: #ffb3b3; }
.fa-btn.wd { background: #16223a; border: 1px solid #2c4a7a; color: #9fc6ff; }
.fa-btn.end { background: #16262c; border: 1px solid #2c5f55; color: #a8e9d3; }
.fa-btn:active { filter: brightness(1.3); }

.overlay-sub { margin: 0; font-size: 14px; font-weight: 700; color: #a0a0a0; font-variant-numeric: tabular-nums; }

@media (max-height: 700px) {
  .fa-board { width: min(88vw, 330px); }
  .fa-btn { min-height: 44px; }
}