/* ══════════════════════════════════════
   SCREEN: EXERCISES
   ══════════════════════════════════════ */
.exercises-header {
  text-align: center;
  padding-top: 48px;
  margin-bottom: 28px;
}
.exercises-header h2 {
  font-family: var(--font-heading);
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}
.exercise-counter {
  font-size: 13px;
  color: var(--fg-muted);
  margin-bottom: 12px;
  text-align: center;
}
.exercise-question {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 600;
  text-align: center;
  color: var(--fg-secondary);
  margin-bottom: 24px;
  line-height: 1.4;
}
.exercise-question em {
  font-style: normal;
  color: var(--primary-500);
}

/* Fill-in-the-blank */
.fill-sentence {
  font-family: var(--font-serif);
  font-size: 18px;
  text-align: center;
  color: var(--fg);
  margin-bottom: 24px;
  line-height: 1.6;
}
.fill-input-wrap {
  display: inline-block;
  position: relative;
  vertical-align: baseline;
}
.fill-input {
  font-family: var(--font-serif);
  font-size: 18px;
  font-weight: 400;
  color: var(--primary-600);
  background: transparent;
  border: none;
  border-bottom: 2px solid var(--border);
  outline: none;
  padding: 0 4px 2px;
  min-width: 100px;
  width: 140px;
  text-align: center;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease);
}
.dark .fill-input { color: var(--primary-400); }
.fill-input:focus {
  border-bottom-color: var(--primary-400);
}
.fill-input::placeholder {
  color: transparent;
}
.fill-input.correct {
  color: var(--success-600);
  border-bottom-color: var(--success-200);
  border-bottom-style: solid;
}
.dark .fill-input.correct { color: var(--success-500); border-bottom-color: var(--success-300); }
.fill-input.wrong {
  color: var(--coral-600);
  border-bottom-color: var(--coral-200);
  border-bottom-style: solid;
}
.dark .fill-input.wrong { color: var(--coral-500); border-bottom-color: var(--coral-300); }
.fill-input:disabled {
  opacity: 1;
}
.fill-actions {
  display: flex;
  gap: 10px;
  justify-content: center;
  align-items: center;
  margin-top: 20px;
}
.fill-hint {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--fg-secondary);
  background: var(--bg-muted);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.fill-hint iconify-icon,
.fill-hint .hint-icon { color: var(--amber-500); }
.fill-hint:hover {
  background: var(--bg-subtle);
  border-color: var(--border-hover);
  color: var(--fg);
}
.fill-hint:active { transform: scale(0.96); }
.fill-hint-text {
  font-size: 13px;
  color: var(--fg-muted);
  margin-top: 12px;
  text-align: center;
  animation: fadeIn 0.3s var(--ease);
}
.fill-correction {
  font-size: 14px;
  color: var(--success-600);
  margin-top: 8px;
  text-align: center;
  animation: fadeIn 0.3s var(--ease);
}
.dark .fill-correction { color: var(--success-500); }