/* MIX-ED — Class page (class.html). Uses the site's tokens from styles.css:
   off-white cards with a coloured outline, Anton headings, ink buttons. */

.cl-page { padding-top: 24px; }
.cl-loading, .cl-error { color: var(--text-dim); font-weight: 600; }
.cl-error { color: var(--danger); }

/* Heading */
.cl-hero { margin: 4px 0 18px; }
.cl-hero-t { display: flex; align-items: flex-end; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.cl-kicker { margin: 0 0 2px; font: 800 12px/1.2 var(--font); letter-spacing: .08em; text-transform: uppercase; color: var(--accent-pink); }
.cl-h1 { margin: 0; font-family: var(--font-display); font-weight: 400; text-transform: uppercase; font-size: clamp(44px, 7vw, 72px); line-height: .95; color: var(--text); }
.cl-sub { margin: 8px 0 0; font-weight: 600; color: var(--text-dim); }
.cl-sub b { color: var(--text); }
.cl-sub .cl-todo-count { color: var(--accent-pink); }
.cl-preview { background: var(--accent-purple); color: #fff; border-radius: 12px; padding: 10px 14px; font-weight: 700; margin: 0 0 16px; }
.cl-preview a { color: #fff; text-decoration: underline; }

/* Classes across the top (teachers) */
.cl-classbar { display: flex; flex-wrap: wrap; gap: 10px 22px; margin: 0 0 22px; padding: 12px 14px; background: var(--bg-card); border: 1.5px solid var(--border); border-radius: 14px; }
.cl-year { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.cl-year-k { font: 800 11px var(--font); letter-spacing: .07em; text-transform: uppercase; color: var(--text-muted); margin-right: 2px; }
.cl-classbar .pill { padding: 6px 12px; font-weight: 700; font-size: 14px; }

/* Two columns: the stream on the left, To do and the unit on the right */
.cl-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(280px, 360px); gap: 22px; align-items: start; }
.cl-col { display: flex; flex-direction: column; gap: 22px; min-width: 0; }
@media (max-width: 860px) {
  .cl-grid { display: flex; flex-direction: column; align-items: stretch; }
  .cl-col { display: contents; }
  .cl-sec-lesson { order: 1; } .cl-sec-todo { order: 2; } .cl-sec-notices { order: 3; } .cl-sec-lessons { order: 4; }
}
.cl-sec { min-width: 0; }
.cl-sec[hidden] { display: none; }
.cl-h2 { margin: 0 0 10px; font-family: var(--font-display); font-weight: 400; text-transform: uppercase; font-size: 24px; line-height: 1.05; color: var(--text); }
.cl-h3 { margin: 0 0 6px; font-size: 17px; font-weight: 800; color: var(--text); }
.cl-empty { margin: 0; padding: 18px; border: 1.5px dashed var(--border); border-radius: 14px; color: var(--text-dim); font-weight: 600; text-align: center; }
.cl-help { margin: 6px 0; font-size: 13px; color: var(--text-dim); line-height: 1.45; }
.cl-meta { margin: 0 0 6px; font-size: 12.5px; font-weight: 600; color: var(--text-muted); }
.cl-body { margin: 0 0 10px; line-height: 1.55; overflow-wrap: anywhere; }
.cl-body a { color: var(--accent-pink); font-weight: 700; }

/* Cards */
.cl-card { background: var(--bg-card); border: 1.5px solid var(--border); border-radius: 16px; padding: 16px 18px; box-shadow: var(--shadow); }
.cl-card + .cl-card { margin-top: 12px; }
.cl-notice.pinned { border-color: var(--accent-amber); }
.cl-pin { display: inline-block; background: var(--accent-amber); color: #111; border-radius: 6px; padding: 1px 7px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; }

/* This lesson */
.cl-now { border: 2px solid var(--accent-pink); }
.cl-now-k { margin: 0; font: 800 12px var(--font); letter-spacing: .08em; text-transform: uppercase; color: var(--accent-pink); }
.cl-now-h { margin: 4px 0 8px; font-family: var(--font-display); font-weight: 400; text-transform: uppercase; font-size: clamp(28px, 4vw, 38px); line-height: 1; }
.cl-now-note { margin: 0 0 12px; font-size: 16px; line-height: 1.55; }
.cl-now-note a { color: var(--accent-pink); font-weight: 700; overflow-wrap: anywhere; }
.cl-now-tasks { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.cl-now-task { background: var(--bg-elev); border: 1.5px solid var(--border); border-radius: 10px; padding: 8px 12px; font: 700 14px var(--font); color: var(--text); cursor: pointer; text-align: left; }
.cl-now-task small { display: block; font-weight: 600; color: var(--text-dim); font-size: 12px; }
.cl-now-task:hover { border-color: var(--accent-pink); }

/* Link buttons */
.cl-links { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 10px; }
.cl-link { display: inline-flex; align-items: center; gap: 6px; background: var(--bg-card); color: var(--text); border: 1.5px solid var(--border-strong); border-radius: 10px; padding: 8px 13px; font: 700 14px/1.2 var(--font); text-decoration: none; cursor: pointer; }
.cl-link:hover { background: var(--text); color: var(--bg-card); text-decoration: none; }
.cl-links-big .cl-link { padding: 12px 18px; font-size: 15px; background: var(--text); color: var(--bg-card); border-color: var(--text); }
.cl-links-big .cl-link:hover { background: var(--accent-pink); border-color: var(--accent-pink); color: #fff; }

/* Tasks */
.cl-task { padding: 0; overflow: hidden; border-left: 5px solid var(--accent-blue); }
.cl-task.st-missing { border-left-color: var(--accent-pink); }
.cl-task.st-done { border-left-color: var(--accent-green); }
.cl-task.st-returned { border-left-color: var(--accent-purple); }
.cl-task.st-closed { border-left-color: var(--border); }
.cl-task-head { display: flex; align-items: center; gap: 12px; width: 100%; padding: 13px 16px; background: none; border: 0; text-align: left; color: var(--text); font: inherit; cursor: pointer; }
.cl-task-ico { font-size: 22px; line-height: 1; flex: none; }
.cl-task-t { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 2px; }
.cl-task-t b { font-size: 15.5px; overflow-wrap: anywhere; }
.cl-task-t small { font-size: 12.5px; font-weight: 600; color: var(--text-dim); }
.st-missing .cl-state { color: var(--accent-pink); }
.st-done .cl-state { color: var(--accent-green); }
.st-returned .cl-state { color: var(--accent-purple); }
.cl-chev { flex: none; transition: transform .15s; color: var(--text-muted); }
.cl-task.open .cl-chev { transform: rotate(180deg); }
.cl-task-body { display: none; padding: 0 16px 16px; }
.cl-task.open .cl-task-body { display: block; }
.cl-counts { flex: none; font-size: 12.5px; font-weight: 600; color: var(--text-dim); white-space: nowrap; }
.cl-counts b { color: var(--text); }
.cl-counts .cl-tomark { color: var(--accent-pink); }
.cl-task-teacher { container-type: inline-size; }
@container (max-width: 520px) {
  .cl-task-teacher .cl-task-head { flex-wrap: wrap; }
  .cl-task-teacher .cl-task-t { flex-basis: calc(100% - 70px); }
  .cl-task-teacher .cl-counts { order: 3; flex-basis: 100%; padding-left: 34px; white-space: normal; }
}

.cl-mine { background: var(--bg-elev); border-radius: 12px; padding: 12px 14px; margin: 0 0 12px; }
.cl-mine-k { margin: 0 0 8px; font: 800 12px var(--font); letter-spacing: .06em; text-transform: uppercase; color: var(--text-dim); }
.cl-late { display: inline-block; background: var(--accent-pink); color: #fff; border-radius: 6px; padding: 0 6px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .03em; }
.cl-ret { color: var(--accent-purple); font-weight: 800; }
.cl-note { margin: 8px 0 0; font-style: italic; color: var(--text-dim); }
.cl-fb { margin-top: 10px; background: var(--bg-card); border: 2px solid var(--accent-purple); border-radius: 12px; padding: 10px 12px; }
.cl-fb-k { margin: 0 0 4px; font-weight: 800; color: var(--accent-purple); font-size: 13px; }
.cl-fb .cl-body { margin: 0; }
.cl-text-out { background: var(--bg-card); border: 1px solid var(--border); border-radius: 10px; padding: 10px 12px; line-height: 1.5; max-height: 260px; overflow: auto; overflow-wrap: anywhere; }
.cl-audio { display: flex; flex-direction: column; gap: 4px; }
.cl-audio audio { width: 100%; max-width: 420px; height: 40px; }
.cl-file-name { font-size: 12.5px; color: var(--text-dim); font-weight: 600; overflow-wrap: anywhere; }
.cl-img img { display: block; max-width: 220px; max-height: 180px; border-radius: 10px; border: 1px solid var(--border); background: var(--bg); }

/* Hand-in form */
.cl-handin { border-top: 1.5px dashed var(--border); padding-top: 12px; }
.cl-field { display: flex; flex-direction: column; gap: 5px; margin: 0 0 12px; min-width: 0; }
.cl-field > span { font-size: 13px; font-weight: 700; color: var(--text); }
.cl-field input[type="file"] { font: 600 14px var(--font); color: var(--text); max-width: 100%; }
.cl-row { display: flex; flex-wrap: wrap; align-items: center; gap: 8px; }
.cl-grow { flex: 1; min-width: 200px; margin-bottom: 0; }
.cl-status { font-size: 13px; font-weight: 700; color: var(--accent-green); }
.cl-status.bad { color: var(--danger); }
.cl-cols { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 0 12px; }
.cl-check { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 14px; margin: 0 0 12px; }

/* Lessons in the unit */
.cl-lesson-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; }
.cl-lesson { background: var(--bg-card); border: 1.5px solid var(--border); border-radius: 12px; }
.cl-lesson summary { display: flex; align-items: center; gap: 10px; padding: 10px 12px; cursor: pointer; list-style: none; font-weight: 700; }
.cl-lesson summary::-webkit-details-marker { display: none; }
.cl-lesson details > :not(summary) { margin-left: 46px; margin-right: 12px; }
.cl-lesson details[open] { padding-bottom: 4px; }
.cl-ln { flex: none; display: grid; place-items: center; width: 26px; height: 26px; border-radius: 50%; background: var(--bg-elev); font: 800 13px var(--font); color: var(--text-dim); }
.cl-lt { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.cl-lesson.done { opacity: .7; }
.cl-lesson.done .cl-ln { background: var(--accent-green); color: #fff; }
.cl-lesson.now { border: 2px solid var(--accent-pink); }
.cl-lesson.now .cl-ln { background: var(--accent-pink); color: #fff; }
.cl-tag { flex: none; background: var(--accent-pink); color: #fff; border-radius: 6px; padding: 2px 7px; font-size: 11px; font-weight: 800; text-transform: uppercase; letter-spacing: .04em; }
.cl-lesson-list-t .cl-lesson { display: flex; align-items: center; gap: 10px; padding: 8px 10px; font-weight: 700; font-size: 14px; }
.cl-now-btn { flex: none; background: none; border: 1.5px solid var(--border); border-radius: 8px; padding: 4px 9px; font: 700 12px var(--font); color: var(--text-dim); cursor: pointer; }
.cl-now-btn:hover { border-color: var(--accent-pink); color: var(--text); }
.cl-now-btn.on { background: var(--accent-pink); border-color: var(--accent-pink); color: #fff; }
.cl-lessons-t { margin: 4px 0 12px; }

/* Post a notice / set a task */
.cl-compose { border: 2px solid var(--text); }
.cl-tabs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin: 0 0 14px; }
.cl-tab { background: var(--bg-elev); border: 1.5px solid var(--border); border-radius: 10px; padding: 8px 14px; font: 700 14px var(--font); color: var(--text-dim); cursor: pointer; }
.cl-tab.on { background: var(--text); border-color: var(--text); color: var(--bg-card); }
.cl-tab:disabled:not(.on) { display: none; }
.cl-editing { font-size: 13px; font-weight: 700; color: var(--accent-pink); }
.cl-also { margin: 0 0 14px; }
.cl-also summary { cursor: pointer; font-weight: 700; font-size: 14px; color: var(--text-dim); }
.cl-also-list { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; }
.cl-chip { display: inline-flex; align-items: center; gap: 5px; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px; padding: 4px 9px; font-size: 13px; font-weight: 700; cursor: pointer; }
.cl-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.cl-chip-s { background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px; padding: 3px 9px; font-size: 13px; font-weight: 600; }
.cl-missing { margin: 4px 0 12px; }

/* Links editor */
.cl-le { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.cl-le-item { display: inline-flex; align-items: center; gap: 6px; max-width: 100%; background: var(--bg-elev); border: 1px solid var(--border); border-radius: 8px; padding: 4px 4px 4px 10px; font-size: 13px; font-weight: 700; }
.cl-le-item small { color: var(--text-muted); font-weight: 600; max-width: 200px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.cl-le-form { width: 100%; background: var(--bg-elev); border-radius: 12px; padding: 12px; }
.cl-le-or { margin: -4px 0 8px; font-size: 12px; font-weight: 800; text-transform: uppercase; letter-spacing: .06em; color: var(--text-muted); }
.cl-x { flex: none; background: none; border: 0; color: var(--text-muted); font-size: 18px; line-height: 1; padding: 4px 7px; border-radius: 6px; cursor: pointer; }
.cl-x:hover:not(:disabled) { color: var(--accent-pink); background: var(--surface-overlay); }
.cl-x:disabled { opacity: .3; cursor: default; }

/* Teacher: tasks and hand-ins */
.cl-task-actions { margin: 4px 0 12px; }
.cl-task-actions .btn, .cl-notice .btn { padding: 6px 10px; font-size: 13px; }
.cl-danger { color: var(--danger) !important; }
.cl-his { display: flex; flex-direction: column; gap: 10px; container-type: inline-size; }
.cl-hi { display: grid; grid-template-columns: 150px minmax(0, 1fr) minmax(0, 1.1fr); gap: 12px; align-items: start; padding: 12px; border: 1.5px solid var(--border); border-radius: 12px; background: var(--bg); }
.cl-hi.returned { background: var(--bg-card); border-color: var(--border-soft); }
.cl-hi-who b { display: block; overflow-wrap: anywhere; }
.cl-hi-who small { font-size: 12px; color: var(--text-dim); font-weight: 600; }
.cl-hi-mark .cl-row { margin-top: 6px; }
.cl-mark-in { width: 90px !important; flex: none; padding: 8px 10px !important; }
.cl-hi-mark .btn { padding: 8px 12px; font-size: 13px; }
.cl-sc-done { font-size: 13px; font-weight: 800; color: var(--accent-green); }
.cl-dl-btn { font-size: 13px; font-weight: 700; color: var(--text-dim); }
@container (max-width: 640px) {
  .cl-hi { grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr); }
  .cl-hi-mark { grid-column: 1 / -1; }
}
@container (max-width: 400px) { .cl-hi { grid-template-columns: 1fr; } }

.cl-members { list-style: none; margin: 8px 0 0; padding: 0; max-height: 320px; overflow: auto; }
.cl-members li { display: flex; align-items: center; gap: 8px; padding: 4px 0; border-bottom: 1px solid var(--border-soft); font-size: 14px; font-weight: 600; }
.cl-members li span { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.cl-members li small { color: var(--text-muted); font-size: 12px; }
.cl-meter { height: 10px; border-radius: 6px; background: var(--bg-elev); overflow: hidden; border: 1px solid var(--border); }
.cl-meter i { display: block; height: 100%; background: var(--accent-green); }
.cl-meter.warn i { background: var(--accent-amber); }

/* Lesson editor */
body.cl-modal-open { overflow: hidden; }
.cl-modal { position: fixed; inset: 0; z-index: 900; background: rgba(17, 17, 20, .55); display: flex; align-items: flex-start; justify-content: center; padding: 4vh 16px; overflow: auto; }
.cl-modal-card { width: min(760px, 100%); background: var(--bg); border: 2px solid var(--text); border-radius: 18px; padding: 18px 20px; box-shadow: var(--shadow-lg); }
.cl-modal-head { display: flex; align-items: center; justify-content: space-between; }
.cl-modal-foot { position: sticky; bottom: -18px; background: var(--bg); padding: 12px 0 2px; margin-top: 12px; border-top: 1px solid var(--border); }
.ue-list { list-style: none; margin: 12px 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.ue-lesson { background: var(--bg-card); border: 1.5px solid var(--border); border-radius: 14px; padding: 10px 12px; display: flex; flex-direction: column; gap: 8px; }
.ue-top { display: flex; align-items: center; gap: 8px; }
.ue-title { font-weight: 700; }
.ue-note { resize: vertical; min-height: 44px; }

/* Dark theme */
:root[data-theme="dark"] .cl-card, :root[data-theme="dark"] .cl-classbar, :root[data-theme="dark"] .cl-lesson { background: rgba(24, 24, 32, .72); }
:root[data-theme="dark"] .cl-modal-card, :root[data-theme="dark"] .cl-modal-foot { background: var(--bg); }
:root[data-theme="dark"] .cl-pin { color: #111; }