/* Classroom layer inside WebSpice: title-bar user menu, sign-in dialog and the docked panel.
   Built on WebSpice's theme variables, so it follows its dark (default) and classic schemes. */

/* ---------------------------------------------------------------- title bar */
.cls-user { margin-left: auto; display: flex; align-items: center; gap: 6px; min-width: 0; }
body.cls-page .theme-toggle { margin-left: 0; }
.cls-tb-btn {
  display: inline-flex; align-items: center; gap: 6px; height: 22px; padding: 0 10px; max-width: 260px;
  border: 1px solid var(--border-strong); border-radius: 11px; background: var(--panel-2); color: var(--text);
  font-size: 11.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: pointer;
}
.cls-tb-btn:hover { background: var(--hover); border-color: var(--hover-border); }
.cls-tb-btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); font-weight: 600; }
.cls-role { font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.cls-hint { color: var(--muted); font-size: 11.5px; white-space: nowrap; }

.cls-menu {
  position: fixed; z-index: 1000; min-width: 200px; padding: 3px 0;
  background: var(--panel); border: 1px solid var(--border-strong); box-shadow: var(--shadow);
}
.cls-menu .who { padding: 6px 14px 8px; border-bottom: 1px solid var(--border); margin-bottom: 3px; }
.cls-menu .who .mono { color: var(--muted); font-size: 11px; }
.cls-menu button { display: block; width: 100%; padding: 5px 14px; border: 0; background: none; text-align: left; cursor: default; }
.cls-menu button:hover, .cls-menu button:focus-visible { background: var(--hover); outline: none; }
.cls-menu .sep { height: 1px; margin: 3px 0; background: var(--border); }

/* ---------------------------------------------------------------- layout: panel | handle | WebSpice */
body.cls-has-panel .app { grid-template-columns: min(var(--cls-w, 380px), 60vw) 5px minmax(0, 1fr); }
body.cls-has-panel.cls-collapsed .app { grid-template-columns: 0 0 minmax(0, 1fr); }
body.cls-has-panel .app > .titlebar { grid-row: 1; grid-column: 1 / -1; }
body.cls-has-panel .app > .menubar { grid-row: 2; grid-column: 1 / -1; }
body.cls-has-panel .app > .toolbar { grid-row: 3; grid-column: 1 / -1; }
body.cls-has-panel .app > .doc-tabs { grid-row: 4; grid-column: 3; }
body.cls-has-panel .app > .mdi { grid-row: 5; grid-column: 3; }
body.cls-has-panel .app > .log-panel { grid-row: 6; grid-column: 3; }
body.cls-has-panel .app > .statusbar { grid-row: 7; grid-column: 1 / -1; }
body.cls-has-panel .app > .cls-panel { grid-row: 4 / 7; grid-column: 1; }
body.cls-has-panel .app > .cls-resizer { grid-row: 4 / 7; grid-column: 2; }
body.cls-collapsed .cls-panel, body.cls-collapsed .cls-resizer { display: none; }

.cls-resizer { cursor: col-resize; background: var(--mdi-bg); touch-action: none; }
.cls-resizer:hover, .cls-resizer.dragging, .cls-resizer:focus-visible { background: var(--accent); outline: none; }

/* ---------------------------------------------------------------- panel */
.cls-panel {
  display: flex; flex-direction: column; min-width: 0; min-height: 0; overflow: hidden;
  background: var(--chrome); border-right: 1px solid var(--border-strong); font-size: 12px;
}
.cls-head {
  display: flex; align-items: center; gap: 6px; min-height: 34px; padding: 4px 8px;
  background: var(--chrome-2); border-bottom: 1px solid var(--border);
}
.cls-head h2 { flex: 1; min-width: 0; margin: 0; font-size: 13px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cls-body { flex: 1; min-height: 0; overflow: auto; padding: 10px; display: grid; gap: 10px; align-content: start; }
.cls-foot {
  display: flex; flex-wrap: wrap; align-items: center; gap: 6px; padding: 8px 10px;
  background: var(--chrome-2); border-top: 1px solid var(--border);
}
.cls-foot .btn, .cls-body .btn:not(.small) { min-width: 0; }

fieldset.cls-group {
  display: grid; gap: 8px; min-width: 0; margin: 0; padding: 6px 10px 10px;
  border: 1px solid var(--border-strong); background: var(--panel);
}
fieldset.cls-group > legend { padding: 0 4px; font-weight: 600; color: var(--text); }
.cls-panel label.field, .cls-dlg label.field { gap: 3px; }
.cls-panel label.field > span, .cls-dlg label.field > span { color: var(--muted); }
.cls-panel .field > span:first-child { color: var(--muted); }
.cls-panel input[type="number"], .cls-panel input[type="datetime-local"], .cls-panel input[type="password"],
.cls-dlg input[type="number"], .cls-dlg input[type="password"] {
  width: 100%; padding: 3px 6px; border: 1px solid #7a7a7a; border-radius: 0; background: var(--panel); outline: none; color: var(--text);
}
.cls-panel input:focus, .cls-dlg input:focus { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.cls-panel select { width: auto; max-width: 100%; }
.cls-panel .grow { flex: 1; min-width: 0; }
textarea.cls-prose { font-family: var(--ui); font-size: 12.5px; line-height: 1.45; }
.cls-panel details > summary { cursor: pointer; color: var(--muted); }
.cls-panel details[open] > summary { margin-bottom: 6px; }

.cls-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; min-width: 0; }
.cls-list { display: grid; gap: 6px; }
.cls-grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.cls-wide { width: 100%; }
.cls-meta { color: var(--muted); font-size: 11.5px; }
.cls-meta .warn, .warn { color: var(--warn); }
.cls-label { margin-bottom: 4px; color: var(--muted); }
.cls-empty { padding: 18px 8px; color: var(--muted); text-align: center; }
.cls-error { padding: 6px 8px; border: 1px solid var(--danger); color: var(--danger); background: color-mix(in srgb, var(--danger) 8%, transparent); }
.cls-error:empty { display: none; }
.cls-instructions { white-space: pre-wrap; line-height: 1.5; font-size: 12.5px; }
.cls-chip { display: inline-block; padding: 1px 6px; font-family: var(--mono); font-size: 11.5px; border: 1px solid var(--border-strong); background: var(--panel-2); }
.cls-comment { padding: 6px 8px; border-left: 3px solid var(--accent); background: var(--accent-soft); }
.cls-points { margin: 0; padding: 0; list-style: none; display: grid; gap: 3px; }
.cls-points li { display: flex; justify-content: space-between; gap: 8px; }
.cls-big { font-size: 26px; font-weight: 700; line-height: 1.1; }
.muted { color: var(--muted); }
.mono { font-family: var(--mono); }

.cls-item {
  display: grid; gap: 4px; width: 100%; padding: 8px 10px; text-align: left; color: var(--text);
  border: 1px solid var(--border); background: var(--panel); font: inherit; cursor: default;
}
button.cls-item:hover, button.cls-item:focus-visible { background: var(--hover); border-color: var(--hover-border); outline: none; }
.cls-item .t { font-size: 12.5px; font-weight: 600; min-width: 0; }

.cls-badge {
  display: inline-block; padding: 0 7px; border: 1px solid var(--border-strong); border-radius: 9px;
  color: var(--muted); font-size: 10.5px; line-height: 16px; white-space: nowrap;
}
.cls-badge.published { color: var(--ok); border-color: currentColor; }
.cls-badge.draft { color: var(--warn); border-color: currentColor; }
.cls-badge.closed { color: var(--danger); border-color: currentColor; }

.cls-seg { display: flex; border: 1px solid var(--border-strong); }
.cls-seg button { flex: 1; padding: 5px 8px; border: 0; background: var(--panel-2); color: var(--text); cursor: default; }
.cls-seg button + button { border-left: 1px solid var(--border-strong); }
.cls-seg button.active { background: var(--accent); color: var(--accent-ink); font-weight: 600; }

.cls-check { display: grid; gap: 6px; padding: 8px; border: 1px solid var(--border); background: var(--panel-2); }
.cls-check input[type="text"] { width: auto; min-width: 0; }
.cls-check select { min-width: 0; flex: 1; }

.cls-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; }
.cls-stats > div { display: grid; padding: 6px 8px; border: 1px solid var(--border); background: var(--panel); }
.cls-stats strong { font-size: 16px; }
.cls-stats span { color: var(--muted); font-size: 11px; }

.cls-table { width: 100%; border-collapse: collapse; background: var(--panel); }
.cls-table th, .cls-table td { padding: 5px 6px; border-bottom: 1px solid var(--border); text-align: left; vertical-align: top; }
.cls-table th { color: var(--muted); font-weight: 600; background: var(--panel-2); position: sticky; top: 0; }
.cls-table .num { text-align: right; white-space: nowrap; }
.cls-table tr.clickable { cursor: pointer; }
.cls-table tr.clickable:hover, .cls-table tr.clickable:focus-visible { background: var(--hover); outline: none; }
.cls-scroll { overflow: auto; max-height: 60vh; }
.cls-cols { columns: 2 180px; column-gap: 16px; }

/* scores and graded checks (markup from /assets/common.js) */
.score { font-weight: 700; }
.score.good { color: var(--ok); }
.score.mid { color: var(--warn); }
.score.low { color: var(--danger); }
.results { display: grid; gap: 4px; }
.result { display: grid; grid-template-columns: 14px minmax(0, 1fr) auto; gap: 6px; align-items: start; padding: 5px 7px; border: 1px solid var(--border); background: var(--panel); }
.result .icon { font-weight: 700; }
.result.pass .icon { color: var(--ok); }
.result.half .icon { color: var(--warn); }
.result.fail .icon { color: var(--danger); }
.result .detail { color: var(--muted); font-size: 11.5px; overflow-wrap: anywhere; }
.result .small { font-size: 11px; white-space: nowrap; }

/* ---------------------------------------------------------------- dialogs */
.cls-form { display: grid; gap: 10px; }
.cls-signin { display: grid; gap: 12px; width: min(380px, calc(100vw - 80px)); }
.cls-brand { display: flex; align-items: center; gap: 12px; }
.cls-logo svg { width: 40px; height: 40px; display: block; }
.cls-brand strong { font-size: 15px; }

/* ---------------------------------------------------------------- narrow screens: panel floats over the editor */
@media (max-width: 820px) {
  body.cls-has-panel .app { grid-template-columns: 0 0 minmax(0, 1fr); }
  body.cls-has-panel .app > .cls-panel {
    grid-column: 1 / -1; justify-self: start; z-index: 20;
    width: min(92vw, 400px); box-shadow: var(--shadow);
  }
  body.cls-has-panel .app > .cls-resizer { display: none; }
}