/* ============================================================
 * Card — 每日卡片
 * ============================================================ */

.days-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4, 16px);
  margin-top: var(--space-5, 24px);
}

.day-card {
  display: flex;
  flex-direction: column;
  padding: var(--space-5, 24px);
  background: var(--color-bg-card, #fff);
  border: 1px solid var(--color-border, #E5E5E0);
  border-radius: var(--radius-lg, 16px);
  text-decoration: none;
  color: var(--color-text, #2C3E2D);
  transition: all var(--duration-normal, 250ms) var(--ease, ease);
  position: relative;
  overflow: hidden;
}

.day-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--color-primary-light, #5A8F3D);
  transform: scaleY(0);
  transform-origin: top;
  transition: transform var(--duration-normal) var(--ease);
}

.day-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg, 0 8px 24px rgba(0,0,0,0.12));
  border-color: var(--color-primary-light, #5A8F3D);
  color: var(--color-text, #2C3E2D);
}

.day-card:hover::before {
  transform: scaleY(1);
}

.day-card__num {
  display: flex;
  align-items: center;
  gap: var(--space-2, 8px);
  font-family: var(--font-display);
  font-size: var(--fs-2xl, 36px);
  font-weight: 700;
  color: var(--color-primary, #2D5016);
  margin-bottom: var(--space-3, 12px);
}

.day-card__num::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 32px;
  background: var(--color-accent, #E89342);
  border-radius: var(--radius-full, 9999px);
}

.day-card__date {
  margin-left: auto;
  font-size: var(--fs-xs, 12px);
  font-weight: 400;
  color: var(--color-text-light, #9CA89E);
  font-family: var(--font-body);
}

.day-card__title {
  font-size: var(--fs-md, 18px);
  font-weight: 600;
  margin-bottom: var(--space-2, 8px);
  color: var(--color-text, #2C3E2D);
  line-height: var(--lh-tight, 1.2);
}

.day-card__sub {
  font-size: var(--fs-sm, 14px);
  color: var(--color-text-muted, #6B7B6C);
  margin-bottom: var(--space-3, 12px);
  line-height: var(--lh-relaxed, 1.75);
  flex: 1;
}

.day-card__theme {
  margin-top: auto;
  padding-top: var(--space-3, 12px);
  font-size: var(--fs-xs, 12px);
  color: var(--color-text-light, #9CA89E);
  border-top: 1px dashed var(--color-border, #E5E5E0);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2, 8px);
}

.day-card__theme-tag {
  padding: 2px var(--space-2, 8px);
  background: var(--color-bg-soft, #F0EDE3);
  border-radius: var(--radius-sm, 4px);
  color: var(--color-text-muted, #6B7B6C);
}

/* ---------- Themes (overview) ---------- */
.themes {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: var(--space-3, 12px);
  margin-top: var(--space-5, 24px);
}

.theme-tag {
  padding: var(--space-4, 16px);
  background: var(--color-bg-card, #fff);
  border: 1px solid var(--color-border, #E5E5E0);
  border-radius: var(--radius-md, 8px);
  text-align: center;
  transition: all var(--duration-fast);
}
.theme-tag:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.theme-tag__icon {
  font-size: 32px;
  display: block;
  margin-bottom: var(--space-2, 8px);
}
.theme-tag__name {
  font-weight: 600;
  color: var(--color-text, #2C3E2D);
  font-size: var(--fs-sm, 14px);
}
.theme-tag__days {
  color: var(--color-text-light, #9CA89E);
  font-size: var(--fs-xs, 12px);
  margin-top: var(--space-1, 4px);
}