/* 我的進度（知識點地圖）和老師班房「知識點」分頁：只用設計變數；方格、分段條、圖例在 mastery.css */
.pg-groups { display: flex; flex-wrap: wrap; gap: var(--space-8); margin-bottom: var(--space-24); }
.pg-summary { display: flex; flex-direction: column; gap: var(--space-12); margin-bottom: var(--space-24); }
.pg-sum-line { display: flex; justify-content: space-between; align-items: baseline; gap: var(--space-12); }
.pg-sum-n { font-size: var(--text-number-l-size); font-weight: var(--text-number-l-weight); color: var(--color-text-strong); }
.pg-bar { height: 8px; border-radius: var(--radius-pill); background: var(--color-surface-2); overflow: hidden; }
.pg-bar > span { display: block; height: 100%; background: var(--color-level-proficient); border-radius: var(--radius-pill); }
.pg-row { display: flex; flex-direction: column; gap: var(--space-12); padding: var(--space-16); border-radius: var(--radius-lg); }
.pg-row.is-next-row { background: var(--color-accent-tint); }
.pg-row-head { display: flex; justify-content: space-between; align-items: center; gap: var(--space-12); flex-wrap: wrap; }
.pg-row-head h2 { margin: 0; }
.pg-next { display: inline-flex; align-items: center; gap: 4px; font-size: var(--text-caption-size); font-weight: 600; color: var(--color-accent-text); }
.pg-tiles { display: flex; flex-wrap: wrap; gap: var(--space-8); padding: 3px; }
.pg-detail-head { display: flex; align-items: center; gap: var(--space-12); margin-bottom: var(--space-16); }
.pg-detail-title { flex: 1; min-width: 0; }
.pg-detail-title h3 { margin: 0; }
.pg-detail-level { font-weight: 600; color: var(--color-text-strong); white-space: nowrap; }
.pg-sub { margin: 0 0 var(--space-8); font-size: var(--text-body-size); font-weight: 600; color: var(--color-text-strong); }
.pg-recent { list-style: none; margin: 0 0 var(--space-16); padding: 0; display: flex; flex-direction: column; gap: 6px; }
.pg-recent li { display: flex; justify-content: space-between; gap: var(--space-12); }
.pg-how { background: var(--color-surface-2); border-radius: var(--radius-md); padding: var(--space-12) var(--space-16); line-height: 1.6; }

/* 老師：班房「知識點」分頁 */
.sk-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr); gap: var(--space-24); align-items: start; }
@media (max-width: 900px) { .sk-grid { grid-template-columns: minmax(0, 1fr); } }
.sk-card { padding: var(--space-24); }
.sk-head { display: flex; justify-content: space-between; align-items: flex-start; gap: var(--space-16); flex-wrap: wrap; margin-bottom: var(--space-16); }
.sk-head h2 { margin: 0; }
.sk-legend { display: flex; flex-direction: column; align-items: flex-end; gap: 6px; }
.sk-table { width: 100%; border-collapse: collapse; }
.sk-table th { text-align: left; font-size: var(--text-caption-size); font-weight: 600; color: var(--color-text-secondary); padding: 0 var(--space-8) var(--space-8); }
.sk-table td { padding: 10px var(--space-8); border-top: 1px solid var(--color-line); vertical-align: middle; }
.sk-table .sk-group td { border-top: 0; padding-top: var(--space-16); font-size: var(--text-caption-size); font-weight: 600; color: var(--color-text-secondary); }
.sk-table .sk-num { text-align: right; width: 72px; }
.sk-table .sk-segcell { width: 40%; min-width: 120px; }
.sk-table tr.is-sel td { background: var(--color-accent-tint); }
.sk-pick { border: 0; background: none; padding: 0; font: inherit; text-align: left; color: var(--color-text); cursor: pointer; }
.sk-pick:hover { color: var(--color-accent-text); }
.sk-pick:focus-visible { outline: none; box-shadow: var(--focus-ring); border-radius: var(--radius-xs); }
.sk-sort { border: 0; background: none; padding: 0; font: inherit; font-weight: 600; color: var(--color-accent-text); cursor: pointer; }
.sk-note { margin-top: var(--space-16); color: var(--color-text-secondary); font-size: var(--text-caption-size); }
.sk-side { position: sticky; top: var(--space-16); display: flex; flex-direction: column; gap: var(--space-16); }
.sk-side h2 { margin: 0; }
.sk-level { display: flex; flex-direction: column; gap: var(--space-8); }
.sk-level-head { display: flex; align-items: center; gap: var(--space-8); }
.sk-names { display: flex; flex-wrap: wrap; gap: 6px; }
.sk-name { background: var(--color-surface-2); border-radius: var(--radius-xs); padding: 2px 8px; font-size: var(--text-small-size); }
.sk-actions { display: flex; flex-direction: column; gap: 6px; }