/* Cards and dashboard */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-bottom: 40px;
}

.stat-card {
  display: flex;
  min-height: 112px;
  align-items: center;
  gap: 14px;
  padding: 19px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-small);
}

/* 概览卡片可点变体：仅加交互，不改上面的既有属性值 */
.stat-card.clickable {
  cursor: pointer;
}

.stat-card[role="button"]:focus-visible {
  outline: 3px solid rgba(82, 104, 232, 0.28);
  outline-offset: 2px;
}

/* 概览卡片跳转进来的筛选提示条 */
.stat-filter-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--accent-soft);
  color: var(--accent-strong);
  font-size: 13px;
  font-weight: 600;
}

.stat-icon {
  display: grid;
  width: 46px;
  height: 46px;
  flex: 0 0 auto;
  place-items: center;
  border-radius: 13px;
}

.stat-icon.accent {
  color: var(--accent);
  background: var(--accent-soft);
}

.stat-icon.amber {
  color: var(--amber);
  background: var(--amber-soft);
}

.stat-icon.mint {
  color: var(--mint);
  background: var(--mint-soft);
}

.stat-value {
  margin: 0;
  font-size: 25px;
  font-weight: 750;
  letter-spacing: -0.04em;
}

.stat-label {
  margin: 3px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.section-block {
  margin-top: 36px;
}

.section-heading {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 15px;
  margin-bottom: 14px;
}

.section-heading h3 {
  margin: 0;
  font-size: 20px;
  letter-spacing: -0.04em;
}

.section-heading span {
  color: var(--muted);
  font-size: 12px;
}

.section-subtitle {
  margin: -8px 0 15px;
  color: var(--muted);
  font-size: 12px;
}

.occurrence-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.occurrence-card {
  display: flex;
  min-height: 170px;
  flex-direction: column;
  gap: 14px;
  padding: 17px;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-small);
}

.occurrence-top,
.occurrence-meta,
.occurrence-actions,
.lesson-row,
.document-row,
.setting-row,
.modal-title-row,
.review-row,
.focus-task-toolbar {
  display: flex;
  align-items: center;
}

.occurrence-top {
  justify-content: space-between;
  gap: 10px;
}

.pill,
.status-pill {
  display: inline-flex;
  min-height: 26px;
  align-items: center;
  gap: 5px;
  padding: 4px 9px;
  border-radius: 20px;
  color: var(--accent-strong);
  background: var(--accent-soft);
  font-size: 11px;
  font-weight: 700;
}

.pill.overdue,
.status-pill.failed {
  color: var(--danger);
  background: var(--danger-soft);
}

.pill.success,
.status-pill.success {
  color: var(--mint);
  background: var(--mint-soft);
}

.status-pill.processing {
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.status-pill.pending {
  color: var(--amber);
  background: var(--amber-soft);
}

.due-time,
.muted {
  color: var(--muted);
}

.due-time {
  font-size: 11px;
}

.occurrence-title {
  margin: 0;
  overflow: hidden;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.025em;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.occurrence-subject {
  margin: 2px 0 0;
  overflow: hidden;
  color: var(--muted);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.occurrence-meta {
  gap: 12px;
  margin-top: auto;
  color: var(--muted);
  font-size: 11px;
}

.occurrence-meta span,
.lesson-meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.occurrence-actions {
  justify-content: space-between;
  gap: 8px;
}

.empty-state {
  display: grid;
  min-height: 250px;
  place-items: center;
  padding: 34px;
  border: 1px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.55);
  text-align: center;
}

.empty-state-icon {
  display: grid;
  width: 58px;
  height: 58px;
  margin: 0 auto 15px;
  place-items: center;
  border-radius: 18px;
  color: var(--accent);
  background: var(--accent-soft);
}

.empty-state h3 {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.03em;
}

.empty-state p {
  max-width: 400px;
  margin: 7px auto 19px;
  color: var(--muted);
  font-size: 12px;
}