/* ===== 絵文字さがし (emoji-finder) ===== */

.ef-flash-stage,
.ef-answer-stage {
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.ef-level-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted, #888);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* ---- Progress bar ---- */
.ef-progress-bar {
  width: 100%;
  max-width: 340px;
  height: 8px;
  background: var(--card-border, #e2e8f0);
  border-radius: 4px;
  overflow: hidden;
}

.ef-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #3b82f6, #8b5cf6);
  border-radius: 4px;
  transition: width 0.12s ease;
}

.ef-flash-count {
  font-size: 0.85rem;
  color: var(--text-muted, #aaa);
}

/* ---- Flash emoji ---- */
.ef-flash-emoji {
  font-size: 6rem;
  line-height: 1.1;
  min-height: 1.2em;
  text-align: center;
  user-select: none;
  display: flex;
  align-items: center;
  justify-content: center;
}

@keyframes efPop {
  0%   { opacity: 0; transform: scale(0.55); }
  65%  { transform: scale(1.12); }
  100% { opacity: 1; transform: scale(1); }
}

.ef-flash-emoji.ef-pop {
  animation: efPop 0.22s ease-out both;
}

.ef-flash-hint {
  font-size: 0.78rem;
  color: var(--text-muted, #bbb);
}

/* ---- Answer phase ---- */
.ef-answer-level {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-color, #1e293b);
  text-align: center;
}

.ef-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 6px;
  width: 100%;
  max-width: 360px;
  max-height: 58vh;
  overflow-y: auto;
  padding: 4px 2px;
  -webkit-overflow-scrolling: touch;
}

.ef-emoji-btn {
  aspect-ratio: 1;
  background: var(--card, #fff);
  border: 2px solid var(--card-border, #e2e8f0);
  border-radius: 10px;
  font-size: 1.55rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.1s, border-color 0.15s, background 0.15s;
  -webkit-tap-highlight-color: transparent;
  line-height: 1;
}

.ef-emoji-btn:active:not(:disabled) {
  transform: scale(0.88);
}

.ef-emoji-btn.ef-correct {
  background: #dcfce7;
  border-color: #22c55e;
  animation: efPop 0.25s ease-out both;
}

.ef-emoji-btn.ef-wrong {
  background: #fee2e2;
  border-color: #ef4444;
}

.ef-emoji-btn:disabled {
  cursor: default;
}