.course-incremental-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  align-items: center;
  margin-top: 2px;
  color: var(--lr-muted);
  font-size: 11px;
}

.course-incremental-state {
  display: inline-flex;
  align-items: center;
  min-height: 22px;
  padding: 0 7px;
  border: 1px solid color-mix(in srgb, var(--lr-primary) 22%, var(--lr-line));
  border-radius: 5px;
  color: var(--lr-primary);
  background: color-mix(in srgb, var(--lr-primary) 7%, var(--lr-bg));
  font-size: 10px;
  font-weight: 700;
}

.course-incremental-state[data-state="rejected"] {
  color: #b94444;
  border-color: color-mix(in srgb, #d45a5a 30%, var(--lr-line));
  background: color-mix(in srgb, #d45a5a 8%, var(--lr-bg));
}

.course-incremental-state[data-state="pending"] {
  color: #9a6a16;
  border-color: color-mix(in srgb, #d9a13b 34%, var(--lr-line));
  background: color-mix(in srgb, #d9a13b 9%, var(--lr-bg));
}

.course-incremental-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 2px;
}

.account-work-card .course-incremental-actions button {
  min-height: 28px;
  padding: 0 9px;
  border: 1px solid var(--lr-line);
  border-radius: 5px;
  color: var(--lr-muted);
  background: var(--lr-bg);
  font-size: 10px;
  font-weight: 700;
}

.account-work-card .course-incremental-actions button:first-child {
  color: var(--lr-primary);
  border-color: color-mix(in srgb, var(--lr-primary) 28%, var(--lr-line));
}

.course-incremental-dialog {
  position: fixed;
  inset: 0;
  z-index: 1300;
  display: none;
  justify-content: flex-end;
  background: rgba(20, 24, 39, .48);
  backdrop-filter: blur(5px);
}

.course-incremental-dialog.open { display: flex; }

.course-incremental-panel {
  display: grid;
  grid-template-rows: auto minmax(0, 1fr) auto;
  width: min(1040px, 94vw);
  height: 100%;
  color: var(--lr-ink);
  border-left: 1px solid var(--lr-line);
  background: var(--lr-bg);
  box-shadow: -24px 0 60px rgba(22, 27, 46, .18);
}

.course-incremental-head,
.course-incremental-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--lr-line);
  background: var(--lr-bg);
}

.course-incremental-foot {
  justify-content: flex-end;
  border-top: 1px solid var(--lr-line);
  border-bottom: 0;
}

.course-incremental-head h3 { margin: 0; font-size: 17px; }
.course-incremental-head p { margin: 4px 0 0; color: var(--lr-muted); font-size: 11px; }

.course-incremental-icon-button {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--lr-line);
  border-radius: 6px;
  color: var(--lr-muted);
  background: var(--lr-bg);
  font-size: 20px;
  cursor: pointer;
}

.course-incremental-body {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  min-height: 0;
}

.course-incremental-sidebar {
  min-width: 0;
  overflow: auto;
  padding: 14px;
  border-right: 1px solid var(--lr-line);
  background: var(--lr-soft);
}

.course-incremental-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.course-incremental-toolbar strong { font-size: 12px; }
.course-incremental-toolbar > span { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 5px; }

.course-incremental-tree,
.course-incremental-sort-list {
  display: grid;
  gap: 6px;
}

.course-incremental-tree button,
.course-incremental-sort-item {
  width: 100%;
  min-width: 0;
  padding: 9px 10px;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--lr-muted);
  background: transparent;
  text-align: left;
  cursor: pointer;
}

.course-incremental-tree button {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr);
  align-items: center;
  gap: 5px;
}

.course-incremental-tree button.dragging { opacity: .46; }
.course-incremental-tree-handle { color: var(--lr-muted); font-size: 12px; text-align: center; cursor: grab; }

.course-incremental-tree button:hover,
.course-incremental-tree button.active {
  color: var(--lr-primary);
  border-color: color-mix(in srgb, var(--lr-primary) 22%, var(--lr-line));
  background: var(--lr-bg);
}

.course-incremental-tree b,
.course-incremental-tree small { display: block; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.course-incremental-tree b { font-size: 12px; }
.course-incremental-tree small { margin-top: 3px; font-size: 10px; }

.course-incremental-editor {
  min-width: 0;
  overflow: auto;
  padding: 20px;
  background: var(--lr-bg);
}

.course-incremental-loading,
.course-incremental-empty {
  display: grid;
  place-items: center;
  min-height: 280px;
  color: var(--lr-muted);
  font-size: 12px;
  text-align: center;
}

.course-incremental-form { display: grid; gap: 14px; }
.course-incremental-field { display: grid; gap: 7px; }
.course-incremental-field > label { color: var(--lr-ink); font-size: 12px; font-weight: 700; }
.course-incremental-field input,
.course-incremental-field select {
  width: 100%;
  min-height: 38px;
  padding: 0 11px;
  color: var(--lr-ink);
  border: 1px solid var(--lr-line);
  border-radius: 6px;
  outline: none;
  background: var(--lr-soft);
}

.course-incremental-field input:focus,
.course-incremental-field select:focus { border-color: var(--lr-primary); }
.course-incremental-field input:disabled { color: var(--lr-muted); background: color-mix(in srgb, var(--lr-line) 34%, var(--lr-bg)); cursor: not-allowed; }
.course-incremental-field > small { color: var(--lr-muted); font-size: 10px; line-height: 1.5; }

.course-incremental-editor-host {
  min-height: 300px;
  overflow: visible;
  border: 1px solid var(--lr-line);
  border-radius: 7px;
  background: var(--lr-bg);
}

.course-incremental-attachment-scroll { max-width: 100%; overflow-x: auto; }
.course-incremental-attachment-table { width: 100%; min-width: 420px; border-collapse: collapse; table-layout: fixed; }
.course-incremental-attachment-table th,
.course-incremental-attachment-table td { padding: 7px 8px; border: 1px solid var(--lr-line); color: var(--lr-muted); background: var(--lr-bg); font-size: 10px; line-height: 1.45; text-align: left; vertical-align: top; }
.course-incremental-attachment-table th { color: var(--lr-ink); background: var(--lr-soft); font-weight: 750; }
.course-incremental-attachment-table th:first-child,
.course-incremental-attachment-table td:first-child { width: 64%; }
.course-incremental-attachment-table td { overflow-wrap: anywhere; word-break: break-word; }
.course-incremental-attachment-empty { color: var(--lr-muted); font-size: 10px; }
.course-incremental-upload { width: max-content; }
.course-incremental-relation-head { display: flex; align-items: center; justify-content: space-between; gap: 10px; }
.course-incremental-relation-head > label { color: var(--lr-ink); font-size: 12px; font-weight: 700; }
.course-incremental-relation-list { display: flex; flex-wrap: wrap; gap: 6px; }
.course-incremental-relation-list > span { display: inline-grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 6px; align-items: center; max-width: 100%; padding: 5px 7px; border: 1px solid var(--lr-line); border-radius: 5px; background: var(--lr-soft); }
.course-incremental-relation-list b { color: var(--lr-primary); font-size: 9px; }
.course-incremental-relation-list em { min-width: 0; overflow: hidden; color: var(--lr-muted); font-size: 10px; font-style: normal; text-overflow: ellipsis; white-space: nowrap; }
.course-incremental-relation-list button { padding: 0; color: var(--lr-muted); border: 0; background: transparent; cursor: pointer; }
.course-incremental-relation-list small { color: var(--lr-muted); font-size: 10px; }

.course-incremental-draft-state { margin-right: auto; color: var(--lr-muted); font-size: 11px; }
.course-incremental-error { margin: 0; color: #bc4040; font-size: 11px; }

.course-incremental-sort-item {
  display: grid;
  grid-template-columns: 24px minmax(0, 1fr) 104px;
  align-items: center;
  gap: 9px;
  border-color: var(--lr-line);
  background: var(--lr-bg);
}

.course-incremental-sort-item.dragging { opacity: .46; }
.course-incremental-sort-handle { color: var(--lr-muted); text-align: center; cursor: grab; }
.course-incremental-sort-item b { overflow: hidden; font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.course-incremental-sort-item select { min-height: 30px; color: var(--lr-muted); border: 1px solid var(--lr-line); border-radius: 5px; background: var(--lr-soft); font-size: 10px; }

body.dark .course-incremental-panel,
body.dark .course-incremental-head,
body.dark .course-incremental-foot,
body.dark .course-incremental-editor,
body.dark .course-incremental-tree button:hover,
body.dark .course-incremental-tree button.active,
body.dark .course-incremental-sort-item { background: var(--bg-card); }

@media (max-width: 760px) {
  .course-incremental-panel { width: 100%; }
  .course-incremental-head,.course-incremental-foot { padding: 13px 14px; }
  .course-incremental-body { grid-template-columns: 1fr; grid-template-rows: auto minmax(0, 1fr); }
  .course-incremental-sidebar { max-height: 210px; border-right: 0; border-bottom: 1px solid var(--lr-line); }
  .course-incremental-editor { padding: 14px; }
  .course-incremental-editor-host { min-height: 250px; }
  .course-incremental-actions { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .account-work-card .course-incremental-actions button { padding: 0 5px; }
  .course-incremental-toolbar { align-items: flex-start; }
  .course-incremental-toolbar > span { max-width: 190px; }
}

@media (max-width: 420px) {
  .course-incremental-toolbar { display: grid; }
  .course-incremental-toolbar > span { max-width: none; justify-content: stretch; }
  .course-incremental-toolbar > span .ghost-btn { flex: 1; min-width: 0; padding-inline: 7px; }
  .course-incremental-foot { flex-wrap: wrap; }
  .course-incremental-draft-state { flex: 1 0 100%; }
}