/* ============================================
   每日一练区域
   ============================================ */

.section-daily {
  padding: var(--space-3xl) 0;
  background: linear-gradient(180deg, #FFF5EB 0%, var(--bg-white) 100%);
}

.daily-card {
  max-width: 700px;
  margin: 0 auto;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  border: 2px solid #FFE8D6;
}

.daily-streak {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  background: linear-gradient(135deg, #FF6B35 0%, #FF8C5A 100%);
  color: white;
  font-weight: 700;
}
.streak-fire { font-size: 1.4rem; }
.streak-num { font-size: 1.6rem; font-family: var(--font-display); }
.streak-label { font-size: 0.95rem; opacity: 0.9; }

.daily-main {
  padding: 32px 28px;
}

.daily-loading {
  text-align: center; color: var(--text-secondary); padding: 40px 0;
  display: flex; flex-direction: column; gap: 18px; align-items: center;
}
.skeleton {
  border-radius: var(--radius-md);
  background: linear-gradient(90deg, var(--bg-light) 25%, var(--border-light) 50%, var(--bg-light) 75%);
  background-size: 200% 100%;
  animation: skeleton-pulse 1.5s ease-in-out infinite;
}
.skeleton-line {
  height: 20px; width: 100%; border-radius: 10px;
}
@keyframes skeleton-pulse {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.daily-done {
  text-align: center; padding: 24px 0;
}
.daily-done .emoji { font-size: 3rem; margin-bottom: 12px; }
.daily-done h3 { font-family: var(--font-display); font-size: 1.3rem; color: var(--text-primary); margin-bottom: 8px; }
.daily-done p { color: var(--text-secondary); }

.daily-questions {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.daily-q {
  padding: 16px 20px;
  background: var(--bg-light);
  border-radius: var(--radius-lg);
}
.daily-q-num {
  display: inline-flex; align-items: center; justify-content: center;
  width: 28px; height: 28px; background: var(--primary); color: white;
  border-radius: 50%; font-weight: 800; font-size: 0.85rem; margin-right: 10px;
}
.daily-q-text { font-size: 1rem; line-height: 1.6; }

.daily-q-options {
  display: flex; flex-direction: column; gap: 8px; margin-top: 12px;
}
.daily-q-option {
  padding: 10px 14px; border: 2px solid var(--border); border-radius: var(--radius-md);
  cursor: pointer; transition: all 0.2s; font-size: 0.95rem; text-align: left;
  background: white;
}
.daily-q-option:hover { border-color: var(--primary); background: var(--primary-bg); }
.daily-q-option.selected { border-color: var(--primary); background: var(--primary-bg); font-weight: 600; }
.daily-q-option.correct { border-color: #28A745; background: #D4EDDA; }
.daily-q-option.wrong { border-color: #E03131; background: #FFE0E0; }

.daily-q-fill {
  display: flex; gap: 10px; margin-top: 12px;
}
.daily-q-fill input {
  flex: 1; padding: 10px 14px; border: 2px solid var(--border); border-radius: var(--radius-md);
  font-size: 1rem; text-align: center;
}
.daily-q-fill input:focus { outline: none; border-color: var(--primary); }
.daily-q-fill input.correct { border-color: #28A745; background: #D4EDDA; }
.daily-q-fill input.wrong { border-color: #E03131; background: #FFE0E0; }

.daily-q-feedback {
  margin-top: 8px; padding: 8px 12px; border-radius: var(--radius-sm);
  font-size: 0.85rem; display: none;
}
.daily-q-feedback.correct { display: block; background: #D4EDDA; color: #155724; }
.daily-q-feedback.wrong { display: block; background: #FFE0E0; color: #721C24; }

.daily-actions {
  text-align: center; margin-top: 24px;
}
.daily-submit {
  padding: 14px 40px; background: var(--primary); color: white;
  border: none; border-radius: var(--radius-full); font-size: 1.05rem;
  font-weight: 700; cursor: pointer; transition: all 0.2s;
}
.daily-submit:hover { background: var(--primary-dark); transform: translateY(-2px); }
.daily-submit:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.daily-result {
  text-align: center; padding: 20px 0;
}
.daily-result .score { font-size: 3rem; font-weight: 900; color: var(--primary); }
.daily-result .label { color: var(--text-secondary); margin-bottom: 16px; }

@media (max-width: 768px) {
  .daily-card { margin: 0 12px; }
  .daily-main { padding: 20px 16px; }
}

/* 暗色模式 */
[data-theme="dark"] .section-daily {
  background: linear-gradient(180deg, #1E2126 0%, var(--bg-white) 100%);
}
[data-theme="dark"] .daily-card {
  background: var(--bg-light);
  border-color: var(--border);
}
[data-theme="dark"] .daily-q {
  background: var(--bg-warm);
}
[data-theme="dark"] .daily-q-option {
  background: var(--bg-warm);
  border-color: var(--border);
}
[data-theme="dark"] .daily-q-option:hover {
  background: var(--primary-bg);
}
[data-theme="dark"] .daily-q-option.selected {
  background: var(--primary-bg);
}
[data-theme="dark"] .daily-q-fill input {
  background: var(--bg-warm);
  border-color: var(--border);
  color: var(--text-primary);
}
[data-theme="dark"] .daily-q-feedback.correct {
  background: rgba(40, 167, 69, 0.15);
  color: #6FCF97;
}
[data-theme="dark"] .daily-q-feedback.wrong {
  background: rgba(224, 49, 49, 0.15);
  color: #FF8A8A;
}
[data-theme="dark"] .daily-q-option.correct {
  border-color: #6FCF97;
  background: rgba(40, 167, 69, 0.15);
}
[data-theme="dark"] .daily-q-option.wrong {
  border-color: #FF8A8A;
  background: rgba(224, 49, 49, 0.15);
}
[data-theme="dark"] .daily-q-fill input.correct {
  border-color: #6FCF97;
  background: rgba(40, 167, 69, 0.15);
  color: #6FCF97;
}
[data-theme="dark"] .daily-q-fill input.wrong {
  border-color: #FF8A8A;
  background: rgba(224, 49, 49, 0.15);
  color: #FF8A8A;
}
[data-theme="dark"] .skeleton {
  background: linear-gradient(90deg, var(--bg-warm) 25%, var(--border) 50%, var(--bg-warm) 75%);
  background-size: 200% 100%;
}