/* ============================================================
   Daily Challenge Game - 每日挑战样式
   ============================================================ */

.vocab-game--daily {
  --daily-gold: #f5a623;
  --daily-gold-light: #fef3cd;
  --daily-gold-dark: #d48806;
  --daily-orange: #fa8c16;
}

.vocab-game--daily .vocab-game__header {
  position: relative;
  background: linear-gradient(135deg, #fff7e6 0%, #ffe7ba 100%);
  border-bottom: 3px solid var(--daily-gold);
}

.dark-mode .vocab-game--daily .vocab-game__header {
  background: linear-gradient(135deg, #2a1f0e 0%, #3d2e12 100%);
}

.daily-badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 14px;
  font-weight: 600;
  margin-top: 8px;
}

.daily-badge--done {
  background: #f6ffed;
  color: #389e0d;
  border: 1px solid #b7eb8f;
}

.dark-mode .daily-badge--done {
  background: rgba(82, 196, 26, 0.1);
  color: #73d13d;
  border-color: #389e0d;
}

.daily-badge--todo {
  background: #fff7e6;
  color: var(--daily-gold-dark);
  border: 1px solid #ffd591;
  animation: pulse-gold 2s ease-in-out infinite;
}

.dark-mode .daily-badge--todo {
  background: rgba(245, 166, 35, 0.1);
  color: var(--daily-gold);
  border-color: var(--daily-gold-dark);
}

@keyframes pulse-gold {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}

/* 统计卡片 */
.daily-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  padding: 20px;
  background: var(--daily-gold-light);
  border-radius: 12px;
  margin: 20px;
}

.dark-mode .daily-stats {
  background: rgba(245, 166, 35, 0.08);
}

.daily-stat {
  text-align: center;
  padding: 12px 8px;
  background: #fff;
  border-radius: 10px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.dark-mode .daily-stat {
  background: #1f1f1f;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.daily-stat__value {
  font-size: 28px;
  font-weight: 700;
  color: var(--daily-gold-dark);
  line-height: 1.2;
}

.dark-mode .daily-stat__value {
  color: var(--daily-gold);
}

.daily-stat__label {
  font-size: 13px;
  color: #666;
  margin-top: 4px;
}

.dark-mode .daily-stat__label {
  color: #999;
}

.daily-stat__sub {
  font-size: 12px;
  color: #999;
  margin-top: 2px;
}

/* 新徽章提示 */
.daily-new-badge {
  text-align: center;
  background: linear-gradient(135deg, #fff1b8, #ffe7ba);
  color: var(--daily-gold-dark);
  padding: 12px 20px;
  font-weight: 600;
  font-size: 16px;
  margin: 0 20px 10px;
  border-radius: 10px;
  animation: badge-pop 0.6s ease-out;
}

.dark-mode .daily-new-badge {
  background: linear-gradient(135deg, #3d2e12, #2a1f0e);
  color: var(--daily-gold);
}

@keyframes badge-pop {
  0% { transform: scale(0.5); opacity: 0; }
  50% { transform: scale(1.1); }
  100% { transform: scale(1); opacity: 1; }
}

/* 题目卡片 */
.daily-question-card {
  margin: 0 20px 20px;
  padding: 24px;
  background: #fff;
  border-radius: 16px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
  border-top: 4px solid var(--daily-gold);
}

.dark-mode .daily-question-card {
  background: #1f1f1f;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
}

.daily-question__label {
  font-size: 13px;
  color: var(--daily-gold-dark);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 12px;
}

.dark-mode .daily-question__label {
  color: var(--daily-gold);
}

.daily-question__title {
  font-size: 20px;
  font-weight: 600;
  line-height: 1.6;
  margin-bottom: 20px;
  color: #262626;
}

.dark-mode .daily-question__title {
  color: #f0f0f0;
}

/* 选项 */
.daily-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 20px;
}

.daily-option {
  padding: 14px 18px;
  border: 2px solid #e8e8e8;
  background: #fafafa;
  border-radius: 10px;
  text-align: left;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: #262626;
}

.dark-mode .daily-option {
  border-color: #333;
  background: #2a2a2a;
  color: #f0f0f0;
}

.daily-option:hover:not(:disabled) {
  border-color: var(--daily-gold);
  background: var(--daily-gold-light);
}

.daily-option.is-selected {
  border-color: var(--daily-gold);
  background: var(--daily-gold-light);
  color: var(--daily-gold-dark);
  font-weight: 500;
}

.dark-mode .daily-option.is-selected {
  background: rgba(245, 166, 35, 0.15);
  color: var(--daily-gold);
}

.daily-option.is-correct {
  border-color: #52c41a;
  background: #f6ffed;
  color: #237804;
  font-weight: 600;
}

.dark-mode .daily-option.is-correct {
  background: rgba(82, 196, 26, 0.1);
  color: #73d13d;
  border-color: #389e0d;
}

.daily-option.is-wrong {
  border-color: #ff4d4f;
  background: #fff1f0;
  color: #a8071a;
}

.dark-mode .daily-option.is-wrong {
  background: rgba(255, 77, 79, 0.1);
  color: #ff7875;
  border-color: #cf1322;
}

.daily-option.is-disabled {
  opacity: 0.5;
  cursor: default;
}

/* 拼写输入 */
.daily-spelling-hint {
  font-size: 24px;
  font-family: 'Courier New', monospace;
  letter-spacing: 4px;
  color: var(--daily-gold-dark);
  text-align: center;
  padding: 20px;
  background: var(--daily-gold-light);
  border-radius: 10px;
  margin-bottom: 20px;
  font-weight: 600;
}

.dark-mode .daily-spelling-hint {
  background: rgba(245, 166, 35, 0.1);
  color: var(--daily-gold);
}

.daily-input {
  width: 100%;
  padding: 14px 16px;
  border: 2px solid #e8e8e8;
  border-radius: 10px;
  font-size: 16px;
  box-sizing: border-box;
  margin-bottom: 16px;
  background: #fff;
  color: #262626;
  transition: border-color 0.2s;
}

.dark-mode .daily-input {
  background: #2a2a2a;
  color: #f0f0f0;
  border-color: #333;
}

.daily-input:focus {
  outline: none;
  border-color: var(--daily-gold);
}

.daily-input:disabled {
  opacity: 0.7;
}

/* 写作观点 */
.daily-textarea {
  width: 100%;
  min-height: 120px;
  padding: 14px 16px;
  border: 2px solid #e8e8e8;
  border-radius: 10px;
  font-size: 15px;
  line-height: 1.6;
  box-sizing: border-box;
  margin-bottom: 16px;
  resize: vertical;
  background: #fff;
  color: #262626;
  font-family: inherit;
  transition: border-color 0.2s;
}

.dark-mode .daily-textarea {
  background: #2a2a2a;
  color: #f0f0f0;
  border-color: #333;
}

.daily-textarea:focus {
  outline: none;
  border-color: var(--daily-gold);
}

.daily-textarea:disabled {
  opacity: 0.7;
}

.daily-submit-btn {
  width: 100%;
  padding: 14px;
  font-size: 16px;
}

.daily-submit-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* 反馈 */
.daily-feedback {
  margin-top: 20px;
  padding: 16px;
  border-radius: 10px;
  border-left: 4px solid;
}

.daily-feedback.is-correct {
  background: #f6ffed;
  border-color: #52c41a;
  color: #237804;
}

.dark-mode .daily-feedback.is-correct {
  background: rgba(82, 196, 26, 0.08);
  color: #73d13d;
  border-color: #389e0d;
}

.daily-feedback.is-wrong {
  background: #fff1f0;
  border-color: #ff4d4f;
  color: #a8071a;
}

.dark-mode .daily-feedback.is-wrong {
  background: rgba(255, 77, 79, 0.08);
  color: #ff7875;
  border-color: #cf1322;
}

.daily-feedback__title {
  font-weight: 700;
  font-size: 16px;
  margin-bottom: 8px;
}

.daily-feedback__answer,
.daily-feedback__explanation {
  font-size: 14px;
  margin-top: 6px;
  line-height: 1.6;
}

/* 参考观点 */
.daily-ideas {
  margin-top: 16px;
  padding: 16px;
  background: var(--daily-gold-light);
  border-radius: 10px;
}

.dark-mode .daily-ideas {
  background: rgba(245, 166, 35, 0.08);
}

.daily-ideas__title {
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--daily-gold-dark);
}

.dark-mode .daily-ideas__title {
  color: var(--daily-gold);
}

.daily-ideas ul {
  margin: 0;
  padding-left: 20px;
}

.daily-ideas li {
  margin-bottom: 6px;
  line-height: 1.5;
}

/* 下方区块 */
.daily-sections {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  padding: 0 20px 20px;
}

.daily-section {
  background: #fff;
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.dark-mode .daily-section {
  background: #1f1f1f;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
}

.daily-section__title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #262626;
}

.dark-mode .daily-section__title {
  color: #f0f0f0;
}

/* 日历 */
.daily-calendar {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 6px;
}

.daily-cal-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  font-size: 11px;
  background: #f5f5f5;
  color: #999;
}

.dark-mode .daily-cal-day {
  background: #2a2a2a;
  color: #666;
}

.daily-cal-day.is-correct {
  background: #b7eb8f;
  color: #237804;
  font-weight: 700;
}

.dark-mode .daily-cal-day.is-correct {
  background: #237804;
  color: #b7eb8f;
}

.daily-cal-day.is-wrong {
  background: #ffccc7;
  color: #a8071a;
  font-weight: 700;
}

.dark-mode .daily-cal-day.is-wrong {
  background: #a8071a;
  color: #ffccc7;
}

.daily-cal-day.is-today {
  box-shadow: 0 0 0 2px var(--daily-gold);
}

/* 徽章 */
.daily-badges {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
}

.daily-badge-item {
  text-align: center;
  padding: 16px 10px;
  border-radius: 12px;
  background: #fafafa;
  transition: all 0.3s ease;
}

.dark-mode .daily-badge-item {
  background: #2a2a2a;
}

.daily-badge-item.is-earned {
  background: linear-gradient(135deg, #fff7e6, #ffe7ba);
  border: 1px solid #ffd591;
}

.dark-mode .daily-badge-item.is-earned {
  background: linear-gradient(135deg, #2a1f0e, #3d2e12);
  border-color: var(--daily-gold-dark);
}

.daily-badge-item.is-locked {
  opacity: 0.5;
  filter: grayscale(0.8);
}

.daily-badge-item__icon {
  font-size: 36px;
  margin-bottom: 8px;
}

.daily-badge-item__name {
  font-size: 13px;
  font-weight: 600;
  color: #262626;
  margin-bottom: 4px;
}

.dark-mode .daily-badge-item__name {
  color: #f0f0f0;
}

.daily-badge-item__days {
  font-size: 12px;
  color: #999;
  margin-bottom: 4px;
}

.daily-badge-item__status {
  font-size: 11px;
  color: #888;
}

.daily-badge-item.is-earned .daily-badge-item__status {
  color: var(--daily-gold-dark);
  font-weight: 600;
}

.dark-mode .daily-badge-item.is-earned .daily-badge-item__status {
  color: var(--daily-gold);
}

/* 大厅顶部每日挑战卡片 */
.vocab-hall-daily-card {
  margin: 0 20px 20px;
  padding: 20px;
  border-radius: 16px;
  background: linear-gradient(135deg, #fff7e6 0%, #ffe7ba 100%);
  border: 2px solid var(--daily-gold);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.dark-mode .vocab-hall-daily-card {
  background: linear-gradient(135deg, #2a1f0e 0%, #3d2e12 100%);
}

.vocab-hall-daily-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 166, 35, 0.3);
}

.vocab-hall-daily-card__left {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1;
}

.vocab-hall-daily-card__icon {
  font-size: 48px;
  flex-shrink: 0;
}

.vocab-hall-daily-card__info {
  flex: 1;
}

.vocab-hall-daily-card__title {
  font-size: 18px;
  font-weight: 700;
  color: var(--daily-gold-dark);
  margin-bottom: 4px;
}

.dark-mode .vocab-hall-daily-card__title {
  color: var(--daily-gold);
}

.vocab-hall-daily-card__desc {
  font-size: 13px;
  color: #8c6e2e;
  line-height: 1.4;
}

.dark-mode .vocab-hall-daily-card__desc {
  color: #d4b16a;
}

.vocab-hall-daily-card__status {
  text-align: center;
  flex-shrink: 0;
}

.vocab-hall-daily-card__streak {
  font-size: 28px;
  font-weight: 700;
  color: var(--daily-gold-dark);
}

.dark-mode .vocab-hall-daily-card__streak {
  color: var(--daily-gold);
}

.vocab-hall-daily-card__streak-label {
  font-size: 11px;
  color: #8c6e2e;
}

.dark-mode .vocab-hall-daily-card__streak-label {
  color: #d4b16a;
}

.vocab-hall-daily-card__badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  margin-top: 6px;
}

.vocab-hall-daily-card__badge--done {
  background: #f6ffed;
  color: #389e0d;
  border: 1px solid #b7eb8f;
}

.vocab-hall-daily-card__badge--todo {
  background: #fff;
  color: var(--daily-gold-dark);
  border: 1px solid var(--daily-gold);
  animation: pulse-gold 2s ease-in-out infinite;
}

/* 响应式 */
@media (max-width: 768px) {
  .daily-stats {
    grid-template-columns: repeat(2, 1fr);
    margin: 16px;
  }

  .daily-sections {
    grid-template-columns: 1fr;
    padding: 0 16px 16px;
  }

  .daily-question-card {
    margin: 0 16px 16px;
    padding: 18px;
  }

  .daily-question__title {
    font-size: 17px;
  }

  .daily-new-badge {
    margin: 0 16px 10px;
  }

  .vocab-hall-daily-card {
    margin: 0 16px 16px;
    padding: 16px;
  }

  .vocab-hall-daily-card__icon {
    font-size: 36px;
  }

  .vocab-hall-daily-card__title {
    font-size: 16px;
  }

  .vocab-hall-daily-card__streak {
    font-size: 22px;
  }

  .daily-badges {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .daily-calendar {
    gap: 4px;
  }

  .daily-cal-day {
    font-size: 10px;
  }
}