:root {
  --bg: #fff8ec;
  --ink: #3b2f2a;
  --card-back: #ffb547;
  --card-face: #ffffff;
  --dad: #4f8cff;
  --mona: #ff6fa5;
  --ok: #3cc58a;
  --safe-t: env(safe-area-inset-top, 0px);
  --safe-b: env(safe-area-inset-bottom, 0px);
  --safe-l: env(safe-area-inset-left, 0px);
  --safe-r: env(safe-area-inset-right, 0px);
}

* {
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  -webkit-user-select: none;
}

html,
body {
  margin: 0;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
  overscroll-behavior: none;
  touch-action: manipulation;
}

button {
  font: inherit;
  color: inherit;
  border: 0;
  background: none;
  cursor: pointer;
}

.screen {
  position: relative;
  min-height: 100svh;
  padding: calc(var(--safe-t) + 16px) calc(var(--safe-r) + 16px) calc(var(--safe-b) + 16px) calc(var(--safe-l) + 16px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}

.title {
  font-size: clamp(28px, 6vw, 56px);
  margin: 0;
}

.choices {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: center;
}

.big {
  min-width: 180px;
  min-height: 180px;
  padding: 20px;
  border-radius: 32px;
  background: #fff;
  box-shadow: 0 8px 0 #e8d9c2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: transform 0.1s;
}
.big:active {
  transform: translateY(6px);
  box-shadow: 0 2px 0 #e8d9c2;
}
.big .icon {
  font-size: 72px;
  line-height: 1;
}
.big .caption {
  font-size: 18px;
  opacity: 0.6;
}
.big.start {
  background: var(--card-back);
  box-shadow: 0 8px 0 #d98f22;
}

.mini {
  display: grid;
  gap: 4px;
}
.mini-2 { grid-template-columns: repeat(2, 24px); }
.mini-3 { grid-template-columns: repeat(3, 24px); }
.mini-6 { grid-template-columns: repeat(4, 24px); }
.mini-card {
  width: 24px;
  height: 30px;
  border-radius: 5px;
  background: var(--card-back);
}

.gear,
.back {
  position: absolute;
  top: calc(var(--safe-t) + 12px);
  font-size: 32px;
  width: 56px;
  height: 56px;
}
.gear { right: calc(var(--safe-r) + 12px); opacity: 0.5; }
.back { left: calc(var(--safe-l) + 12px); }

/* ── 놀이 ── */
.play {
  justify-content: flex-start;
  padding-top: calc(var(--safe-t) + 80px);
  border: 10px solid transparent;
  transition: border-color 0.3s;
}
.play[data-turn='dad'] { border-color: var(--dad); }
.play[data-turn='mona'] { border-color: var(--mona); }

.players {
  display: flex;
  gap: 24px;
  justify-content: center;
}
.player {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border-radius: 999px;
  background: #fff;
  opacity: 0.45;
  transform: scale(0.9);
  transition: all 0.25s;
}
.player.active { opacity: 1; transform: scale(1.15); }
.player.dad.active { box-shadow: 0 0 0 5px var(--dad); }
.player.mona.active { box-shadow: 0 0 0 5px var(--mona); }
.player.team .avatar { opacity: 0.4; transition: all 0.25s; }
.player.team .avatar.turn { opacity: 1; transform: scale(1.3); }
.avatar { font-size: 40px; }
.pile { display: flex; min-width: 20px; }
.pile-img { width: 34px; height: 34px; margin-left: -8px; border-radius: 8px; background: var(--card-face); }
.face-img { width: 88%; height: 88%; object-fit: contain; pointer-events: none; }

.grid {
  /* 카드 한 장 너비 = 가로로 나눈 값과 세로(3:4 비율)로 나눈 값 중 작은 쪽 → 어느 방향이든 한 화면에 다 들어간다 */
  --gap: 16px;
  --avail-w: calc(100vw - 52px - var(--safe-l) - var(--safe-r));
  --avail-h: calc(100svh - 215px - var(--safe-t) - var(--safe-b));
  --cw: min(
    calc((var(--avail-w) - (var(--cols) - 1) * var(--gap)) / var(--cols)),
    calc((var(--avail-h) - (var(--rows) - 1) * var(--gap)) / var(--rows) * 0.75),
    220px
  );
  display: grid;
  gap: var(--gap);
  grid-template-columns: repeat(var(--cols), var(--cw));
  justify-content: center;
  align-content: center;
  flex: 1;
}
.grid-4 { --cols: 2; --rows: 2; }
.grid-6 { --cols: 3; --rows: 2; }
.grid-12 { --cols: 4; --rows: 3; }
@media (orientation: portrait) {
  .grid-6 { --cols: 2; --rows: 3; }
  .grid-12 { --cols: 3; --rows: 4; }
}

.card {
  aspect-ratio: 3 / 4;
  perspective: 800px;
  padding: 0;
}
.card-inner {
  position: relative;
  display: block;
  width: 100%;
  height: 100%;
  transition: transform 0.35s;
  transform-style: preserve-3d;
}
.card.up .card-inner { transform: rotateY(180deg); }
.card-back,
.card-front {
  position: absolute;
  inset: 0;
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  box-shadow: 0 6px 0 rgba(0, 0, 0, 0.12);
}
.card-back { background: var(--card-back); font-size: clamp(28px, 6vw, 56px); color: #fff; }
.card-front { background: var(--card-face); transform: rotateY(180deg); font-size: clamp(48px, 10vw, 110px); }
.card.matched .card-front { box-shadow: 0 0 0 6px var(--ok); }
.card.wrong .card-inner { animation: wiggle 0.4s 0.35s; }
@keyframes wiggle {
  0%, 100% { transform: rotateY(180deg) rotate(0); }
  25% { transform: rotateY(180deg) rotate(-4deg); }
  75% { transform: rotateY(180deg) rotate(4deg); }
}

/* ── 끝 ── */
.cheer { font-size: 120px; animation: pop 0.6s; }
@keyframes pop {
  0% { transform: scale(0.2); }
  70% { transform: scale(1.2); }
  100% { transform: scale(1); }
}
.result { display: flex; gap: 24px; }
.result .player { opacity: 1; transform: none; }

/* ── 부모 확인 / 메뉴 ── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 10;
}
.sheet {
  background: #fff;
  border-radius: 24px;
  padding: 24px;
  width: min(100%, 420px);
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: stretch;
  text-align: center;
}
.gate-title { margin: 0; font-weight: 700; font-size: 20px; }
.gate-q { margin: 0; font-size: 32px; }
.gate-choices { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.gate-btn,
.menu-btn {
  padding: 14px;
  border-radius: 14px;
  background: #f2ebe0;
  font-size: 20px;
  text-decoration: none;
  color: inherit;
}
.gate-close { padding: 10px; opacity: 0.6; }