/* SchoolCAD classroom: class links (with a QR code), the task card, Hand in, the Marking view and the class table
 * (js/cad/classroom-ui.js). Light and dark themes come from the tokens in app.css. */

/* ---------- the task card, at the top of the feature tree ---------- */
.task-card { margin: 8px 8px 0; padding: 9px 10px 10px; border: 1px solid color-mix(in srgb, var(--accent) 45%, var(--line)); border-radius: 10px; background: color-mix(in srgb, var(--accent) 7%, var(--panel)); display: grid; gap: 4px; }
.task-card + .tree-sec { border-top: 0; }
.tc-head { display: flex; align-items: center; gap: 6px; font: 600 11px var(--font-ui); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); }
.tc-class { margin-left: auto; text-transform: none; letter-spacing: 0; font-weight: 600; color: var(--ink); background: var(--panel); border: 1px solid var(--line); border-radius: 999px; padding: 1px 8px; max-width: 60%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.tc-task { font-family: var(--font-display); font-size: 15px; line-height: 1.25; overflow-wrap: anywhere; }
.tc-due { font-size: 12.5px; color: var(--muted); }
.tc-due.late { color: var(--err); font-weight: 600; }
.tc-notes summary { cursor: pointer; font-size: 12.5px; color: var(--accent); }
.tc-notes p { margin: 4px 0 0; font-size: 12.5px; white-space: pre-line; overflow-wrap: anywhere; }
.tc-handin { justify-self: stretch; justify-content: center; margin-top: 4px; }
.tc-handed { font-size: 12px; color: var(--ok); }

/* ---------- dialogs: class link, Hand in ---------- */
.cl-grid { display: grid; grid-template-columns: minmax(280px, 360px) minmax(260px, 1fr); gap: 18px; align-items: start; }
.cl-fields { display: grid; gap: 10px; }
.cl-fields label.cl-f { display: grid; gap: 4px; font-size: 12.5px; color: var(--muted); }
.cl-fields label.cl-f > span b { color: var(--ink); font-weight: 600; }
.cl-fields input, .cl-fields select, .cl-fields textarea, .hi-fields input { font: inherit; font-size: 13.5px; color: var(--ink); background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--r); padding: 6px 8px; width: 100%; box-sizing: border-box; }
.cl-fields textarea { resize: vertical; min-height: 70px; }
.cl-out { display: grid; gap: 10px; justify-items: center; }
.cl-qr { width: 232px; height: 232px; image-rendering: pixelated; background: #fff; border: 1px solid var(--line); border-radius: 8px; padding: 6px; }
.cl-qr.none { display: grid; place-items: center; text-align: center; font-size: 12.5px; color: var(--muted); padding: 16px; box-sizing: border-box; background: var(--panel); }
.cl-out .share-row { width: 100%; }
.cl-acts { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; }
.cl-out .help { text-align: center; margin: 0; }
.cl-guide, .hi-guide, .mk-guide { border-top: 1px solid var(--line); margin-top: 12px; padding-top: 10px; }
.cl-guide .guide-term, .hi-guide .guide-term, .mk-guide .guide-term { font-family: var(--font-display); }
.cl-guide .guide-aka, .hi-guide .guide-aka, .mk-guide .guide-aka { margin: 0 0 6px; font-size: 12px; color: var(--muted); }
.hi-fields { display: grid; gap: 8px; margin: 8px 0 4px; }
.hi-fields .fd-row { grid-template-columns: 96px minmax(0, 1fr); }
.hi-fields .hi-fixed { font-size: 13.5px; font-weight: 600; overflow-wrap: anywhere; }
.hi-out { margin-top: 10px; padding: 10px 12px; border-radius: 10px; border: 1px solid color-mix(in srgb, var(--ok) 45%, var(--line)); background: color-mix(in srgb, var(--ok) 7%, var(--panel)); display: grid; gap: 8px; }
.hi-out .help { margin: 0; }
.hi-where { font-weight: 600; }
.hi-file { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.hi-file code { font-family: var(--font-mono); font-size: 12px; overflow-wrap: anywhere; }

/* the QR code on the board: as big as the screen allows */
dialog.cl-board { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; border: 0; border-radius: 0; background: #ffffff; color: #111; }
dialog.cl-board::backdrop { background: #ffffff; }
.clb { height: 100%; display: grid; grid-template-rows: auto minmax(0, 1fr) auto; justify-items: center; align-items: center; gap: 12px; padding: 24px 16px; box-sizing: border-box; text-align: center; }
.clb h2 { margin: 0; font-family: var(--font-display); font-size: clamp(22px, 4vw, 44px); color: #111; }
.clb .clb-sub { margin: 4px 0 0; font-size: clamp(14px, 2vw, 22px); color: #444; }
.clb canvas { height: min(100%, 86vw); width: auto; aspect-ratio: 1; image-rendering: pixelated; }
.clb .clb-foot { font-size: clamp(13px, 1.6vw, 18px); color: #444; display: flex; gap: 14px; align-items: center; flex-wrap: wrap; justify-content: center; }
.clb .btn { color: #111; background: #f2f3f5; border-color: #c9ccd2; }

/* ---------- the Marking view (full window, read-only) ---------- */
dialog.mk { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; border: 0; border-radius: 0; padding: 0; background: var(--bg); color: var(--ink); }
dialog.mk[open] { display: grid; grid-template-rows: auto minmax(0, 1fr); }
.mk-top { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; padding: 8px 16px; background: var(--panel); border-bottom: 1px solid var(--line); }
.mk-top h2 { margin: 0; font-family: var(--font-display); font-size: 16px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 40ch; }
.mk-badge { font-size: 10.5px; font-weight: 700; letter-spacing: .07em; text-transform: uppercase; padding: 2px 8px; border-radius: 999px; background: var(--accent-weak); color: var(--accent); }
.mk-sub { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; min-width: 0; flex: 1 1 120px; }
.mk-acts { margin-left: auto; display: flex; gap: 6px; flex-wrap: wrap; }
.mk-body { display: grid; grid-template-columns: 270px minmax(0, 1fr) 310px; min-height: 0; }
.mk-left, .mk-right { background: var(--panel); overflow: auto; min-height: 0; padding: 10px 12px 16px; display: grid; align-content: start; gap: 14px; }
.mk-left { border-right: 1px solid var(--line); }
.mk-right { border-left: 1px solid var(--line); }
.mk-left h3, .mk-right h3 { margin: 0 0 6px; font: 600 11px var(--font-ui); text-transform: uppercase; letter-spacing: .08em; color: var(--muted); display: flex; align-items: center; gap: 6px; }
.mk-left h3 .btn { margin-left: auto; text-transform: none; letter-spacing: 0; }
.mk-dl { display: grid; grid-template-columns: 84px minmax(0, 1fr); gap: 4px 8px; margin: 0; font-size: 13px; }
.mk-dl dt { color: var(--muted); }
.mk-dl dd { margin: 0; overflow-wrap: anywhere; white-space: pre-line; }
.late-b, .ontime-b { display: inline-block; font-size: 11px; font-weight: 700; padding: 1px 7px; border-radius: 999px; margin-left: 4px; white-space: nowrap; }
.late-b { background: color-mix(in srgb, var(--err) 14%, var(--panel)); color: var(--err); border: 1px solid color-mix(in srgb, var(--err) 45%, var(--line)); }
.ontime-b { background: color-mix(in srgb, var(--ok) 12%, var(--panel)); color: var(--ok); border: 1px solid color-mix(in srgb, var(--ok) 40%, var(--line)); }
.mk-vers, .mk-feats, .mk-checks, .mk-tut { list-style: none; margin: 0; padding: 0; display: grid; gap: 4px; }
.mk-vers button { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 8px; align-items: center; width: 100%; text-align: left; padding: 4px; border: 1px solid transparent; border-radius: 8px; background: none; color: inherit; font: inherit; cursor: pointer; }
.mk-vers button:hover { background: var(--accent-weak); }
.mk-vers button[aria-pressed="true"] { border-color: var(--accent); background: var(--accent-weak); }
.mk-vers img, .mk-vers .nopic { width: 54px; height: 34px; object-fit: cover; border-radius: 4px; background: var(--stage); display: grid; place-items: center; font-size: 9px; color: var(--muted); }
.mk-vers b { display: block; font-size: 12.5px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mk-vers small { color: var(--muted); font-size: 11.5px; }
.mk-feats li { display: flex; align-items: center; gap: 6px; font-size: 12.5px; padding: 2px 6px; border-radius: 6px; }
.mk-feats li.cur { background: var(--accent-weak); }
.mk-feats li.off { color: var(--muted); text-decoration: line-through; }
.mk-feats .fm { width: 14px; text-align: center; flex: none; }
.mk-feats .fm.err { color: var(--err); } .mk-feats .fm.warn { color: var(--warn); }
.mk-view { position: relative; min-width: 0; min-height: 0; background: var(--stage); }
.mk-view canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.mk-view canvas.mk-ov { touch-action: none; outline-offset: -3px; }
.mk-vbar { position: absolute; left: 10px; top: 10px; display: flex; gap: 4px; flex-wrap: wrap; z-index: 2; }
.mk-vbar .btn:not(.primary) { background: color-mix(in srgb, var(--panel) 92%, transparent); }
.mk-status { position: absolute; left: 50%; bottom: 14px; transform: translateX(-50%); font-size: 13px; padding: 5px 12px; border-radius: 999px; background: var(--panel); border: 1px solid var(--line); box-shadow: var(--shadow); max-width: calc(100% - 40px); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; z-index: 2; }
.mk-showing { position: absolute; left: 50%; top: 10px; transform: translateX(-50%); display: flex; gap: 8px; align-items: center; font-size: 13px; padding: 4px 6px 4px 12px; border-radius: 999px; background: color-mix(in srgb, var(--accent) 12%, var(--panel)); border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--line)); z-index: 2; max-width: calc(100% - 260px); }
.mk-showing span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mk-checks li { display: grid; grid-template-columns: 18px minmax(0, 1fr); gap: 6px; font-size: 12.5px; padding: 5px 6px; border-radius: 6px; background: var(--bg); }
.mk-checks li small { display: block; color: var(--muted); }
.mk-checks .cm { font-weight: 700; text-align: center; }
.mk-checks .bad .cm { color: var(--err); } .mk-checks .warn .cm { color: var(--warn); } .mk-checks .info .cm { color: var(--info); } .mk-checks .ok .cm { color: var(--ok); }
.mk-tut li { display: flex; gap: 6px; font-size: 12.5px; }
.mk-tut li .cm { width: 16px; text-align: center; color: var(--muted); }
.mk-tut li.done .cm { color: var(--ok); font-weight: 700; }
.mk-fb textarea { width: 100%; box-sizing: border-box; min-height: 150px; font: inherit; font-size: 13px; color: var(--ink); background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--r); padding: 6px 8px; resize: vertical; }
.mk-fb .btn { margin-top: 6px; }

/* ---------- the class table ---------- */
dialog.mk-table { width: min(1180px, calc(100vw - 24px)); max-height: calc(100vh - 24px); }
.mk-table .dlg { display: grid; grid-template-rows: auto auto minmax(0, 1fr) auto; max-height: calc(100vh - 26px); box-sizing: border-box; }
.mkt-head { display: flex; align-items: flex-start; gap: 12px; flex-wrap: wrap; }
.mkt-head > div:first-child { flex: 1 1 320px; }
.mkt-head h2 { margin: 0; }
.mkt-tools { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }
.mkt-paste { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 6px; margin: 8px 0 0; }
.mkt-paste textarea { font: inherit; font-size: 12.5px; color: var(--ink); background: var(--panel); border: 1px solid var(--line-strong); border-radius: var(--r); padding: 6px 8px; min-height: 52px; resize: vertical; }
.mkt-wrap { overflow: auto; min-height: 120px; margin-top: 10px; border: 1px solid var(--line); border-radius: 10px; }
.mkt { width: 100%; border-collapse: collapse; font-size: 13px; }
.mkt th { position: sticky; top: 0; background: var(--panel); text-align: left; font: 600 11px var(--font-ui); text-transform: uppercase; letter-spacing: .06em; color: var(--muted); padding: 8px; border-bottom: 1px solid var(--line); z-index: 1; }
.mkt td { padding: 6px 8px; border-bottom: 1px solid var(--line); vertical-align: middle; }
.mkt tr:last-child td { border-bottom: 0; }
.mkt td small { display: block; color: var(--muted); font-size: 11.5px; }
.mkt img, .mkt .nopic { width: 96px; height: 60px; object-fit: cover; border-radius: 6px; background: var(--stage); display: grid; place-items: center; font-size: 10.5px; color: var(--muted); text-align: center; }
.mkt .ck.bad { color: var(--err); font-weight: 600; } .mkt .ck.warn { color: var(--warn); font-weight: 600; } .mkt .ck.ok { color: var(--ok); font-weight: 600; } .mkt .ck.wait { color: var(--muted); }
.mkt .empty td { text-align: center; color: var(--muted); padding: 28px 12px; }

@media (max-width: 1100px) {
  .mk-body { grid-template-columns: 240px minmax(0, 1fr) 270px; }
}
@media (max-width: 860px) {
  .cl-grid { grid-template-columns: 1fr; }
  .mk-body { grid-template-columns: 1fr; grid-template-rows: minmax(320px, 50vh) auto auto; overflow: auto; }
  .mk-view { order: -1; }
}

#learn-classlink { margin-left: 8px; }