/**
 * Boss riddle overlay.
 */
.riddle-overlay {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(6, 6, 18, 0.92);
}
.riddle-overlay[hidden] { display: none; }

.riddle__box {
  max-width: 480px;
  width: 90%;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  padding: 32px 28px;
  background: var(--c-surface);
  border: 2px solid var(--c-accent);
  border-radius: 16px;
  box-shadow: 0 0 40px var(--c-accent-glow), var(--shadow-lg);
  animation: riddle-enter 0.3s ease-out;
}

.riddle__title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--c-accent);
  letter-spacing: 2px;
  text-align: center;
}

.riddle__question {
  font-family: var(--font-ui);
  font-size: 1rem;
  color: var(--c-text);
  line-height: 1.6;
  text-align: center;
  font-style: italic;
}

.riddle__options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  width: 100%;
}

.riddle__opt {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border: 1px solid var(--c-border);
  border-radius: 10px;
  color: var(--c-text);
  font-family: var(--font-ui);
  font-size: 0.95rem;
  text-align: left;
  transition: all var(--t-fast);
}

.riddle__opt:hover {
  border-color: var(--c-accent);
  background: var(--c-accent-dim);
  color: var(--c-text-bright);
}

.riddle__opt-key {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  border: 1px solid var(--c-text-dim);
  border-radius: 6px;
  color: var(--c-text-dim);
  flex-shrink: 0;
}

.riddle__opt:hover .riddle__opt-key {
  border-color: var(--c-accent);
  color: var(--c-accent);
}

@keyframes riddle-enter {
  0% { opacity: 0; transform: scale(0.85); }
  100% { opacity: 1; transform: scale(1); }
}