/* ── Cards game section ──────────────────────────────────────────────────────── */
.cards-section { max-width: 560px; }

/* ── Setup ───────────────────────────────────────────────────────────────────── */
.setup-group {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.setup-label {
  font-size: 0.78rem;
  font-weight: 600;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.setup-hint {
  font-size: 0.78rem;
  color: #9ca3af;
  line-height: 1.5;
}

/* Segmented control */
.seg {
  display: flex;
  gap: 8px;
  width: 100%;
}

.seg-btn {
  flex: 1;
  padding: 12px 0;
  font-size: 0.95rem;
  font-weight: 600;
  color: #374151;
  background: #f3f4f6;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.seg-btn:hover:not(:disabled):not(.is-active) { background: #e5e7eb; }

.seg-btn.is-active {
  background: #1a1a2e;
  color: #fff;
  border-color: #1a1a2e;
}

.seg-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* Name inputs */
.name-inputs {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.name-input {
  width: 100%;
  padding: 11px 14px;
  font-size: 0.95rem;
  color: #1a1a2e;
  background: #f9fafb;
  border: 1px solid #e5e7eb;
  border-radius: 10px;
  outline: none;
  transition: border-color 0.15s, background 0.15s;
}

.name-input:focus {
  border-color: #4f46e5;
  background: #fff;
}

/* Colorblind toggle */
.toggle-row {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  background: #f9fafb;
  border-radius: 12px;
  cursor: pointer;
}

.toggle-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 0.92rem;
  font-weight: 600;
  color: #374151;
}

.toggle-sub {
  font-size: 0.75rem;
  font-weight: 400;
  color: #9ca3af;
}

.toggle-input { position: absolute; opacity: 0; pointer-events: none; }

.toggle-track {
  position: relative;
  width: 44px;
  height: 26px;
  background: #d1d5db;
  border-radius: 100px;
  flex-shrink: 0;
  transition: background 0.2s;
}

.toggle-track::after {
  content: "";
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  background: #fff;
  border-radius: 50%;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
  transition: transform 0.2s;
}

.toggle-input:checked + .toggle-track { background: #4f46e5; }
.toggle-input:checked + .toggle-track::after { transform: translateX(18px); }

/* ── Play HUD ────────────────────────────────────────────────────────────────── */
.play-hud { width: 100%; }

/* display:flex 아래의 요소는 [hidden] UA 규칙을 덮으므로 명시적으로 숨긴다 */
.hud-timer[hidden],
.scoreboard[hidden] { display: none; }

.hud-timer {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.hud-timer-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hud-timer-num {
  font-size: 2rem;
  font-weight: 800;
  color: #1a1a2e;
  font-variant-numeric: tabular-nums;
}

.scoreboard {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
}

.score-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: #f3f4f6;
  border: 2px solid transparent;
  border-radius: 100px;
  font-size: 0.88rem;
  transition: border-color 0.15s, background 0.15s;
}

.score-pill.is-turn {
  background: #eef2ff;
  border-color: #4f46e5;
}

.score-name { font-weight: 600; color: #374151; }

.score-val {
  font-weight: 800;
  color: #4f46e5;
  font-variant-numeric: tabular-nums;
}

.sd-banner {
  width: 100%;
  text-align: center;
  padding: 10px;
  background: #fef2f2;
  color: #dc2626;
  font-weight: 700;
  font-size: 0.92rem;
  border-radius: 10px;
}

/* ── Board ───────────────────────────────────────────────────────────────────── */
.board {
  display: grid;
  grid-template-columns: repeat(var(--cols), 1fr);
  gap: clamp(5px, 1.4vw, 10px);
  width: 100%;
}

.card {
  position: relative;
  aspect-ratio: 1;
  padding: 0;
  border: none;
  background: none;
  cursor: pointer;
  perspective: 600px;
  -webkit-tap-highlight-color: transparent;
}

.card-inner {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  transition: transform 0.35s;
}

.card.is-revealed .card-inner,
.card.is-matched  .card-inner { transform: rotateY(180deg); }

.card-face {
  position: absolute;
  inset: 0;
  border-radius: 10px;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 1px 4px rgba(0,0,0,0.12);
}

.card-back {
  background: linear-gradient(135deg, #2d2d4e, #1a1a2e);
}

.card-back::after {
  content: "?";
  color: rgba(255,255,255,0.35);
  font-size: clamp(0.9rem, 3.5vw, 1.4rem);
  font-weight: 800;
}

.card-front {
  transform: rotateY(180deg);
}

.card-symbol {
  display: none;
  color: rgba(0,0,0,0.55);
  font-size: clamp(0.7rem, 2.6vw, 1.1rem);
  font-weight: 800;
  text-shadow: 0 1px 2px rgba(255,255,255,0.4);
}

/* 색약 모드: 색 위에 기호 노출 */
.board.cb .card-symbol { display: block; }

.card.is-matched { cursor: default; }
.card.is-matched .card-inner { animation: matchedPulse 0.4s ease; }
.card.is-matched .card-front { box-shadow: 0 0 0 3px #4f46e5, 0 2px 8px rgba(79,70,229,0.4); }

@keyframes matchedPulse {
  0%   { transform: rotateY(180deg) scale(1); }
  50%  { transform: rotateY(180deg) scale(1.08); }
  100% { transform: rotateY(180deg) scale(1); }
}

.card:focus-visible { outline: 3px solid #4f46e5; outline-offset: 2px; border-radius: 12px; }

.btn-quit { max-width: 200px; }

/* ── Result ──────────────────────────────────────────────────────────────────── */
.result-body {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.result-time {
  font-size: 3rem;
  font-weight: 800;
  color: #4f46e5;
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.result-sub { font-size: 1rem; color: #6b7280; }

.result-best { font-size: 0.95rem; font-weight: 700; color: #16a34a; }
.result-best.muted { color: #9ca3af; font-weight: 500; }

.result-winner {
  font-size: 1.5rem;
  font-weight: 800;
  color: #1a1a2e;
  text-align: center;
}

.ranking {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.rank-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  background: #f9fafb;
  border-radius: 10px;
}

.rank-pos {
  width: 24px;
  font-weight: 800;
  color: #9ca3af;
  text-align: center;
}

.rank-name { font-weight: 600; color: #374151; }

.rank-score {
  margin-left: auto;
  font-weight: 700;
  color: #4f46e5;
}