/* Teaching area: class workspace, marking, class performance, student classroom. */

:root {
    --utc-teaching-navy: var(--utc-brand, #1e3a5f);
    --utc-teaching-maroon: var(--utc-brand-2, #7a1f2b);
    --utc-teaching-gold: var(--utc-brand-3, #c9a227);
    --utc-teaching-green: #15803d;
    --utc-teaching-teal: #0f766e;
    --utc-teaching-purple: #6d28d9;
}

/* ---------- shared bits ---------- */
.utc-teaching-avatar {
    display: inline-flex; align-items: center; justify-content: center; flex: none;
    width: 30px; height: 30px; border-radius: 999px; font-size: .75rem; font-weight: 700;
    background: var(--utc-teaching-navy); color: #fff;
}
.utc-teaching-avatar-lg { width: 46px; height: 46px; font-size: 1rem; background: var(--utc-teaching-gold); color: #1b1b1b; }
.utc-teaching-code {
    display: inline-block; font-size: .72rem; font-weight: 800; letter-spacing: .06em;
    padding: 2px 8px; border-radius: 6px; background: rgba(255,255,255,.2); color: inherit;
}
.utc-teaching-chip { display: inline-block; font-size: .72rem; font-weight: 600; padding: 2px 9px; border-radius: 999px; background: var(--utc-chip); color: var(--utc-text); }
.utc-teaching-chip-new { background: var(--utc-warn-soft); color: var(--utc-warn); }
.utc-teaching-mode-in_person { background: var(--utc-ok-soft); color: var(--utc-ok); }
.utc-teaching-mode-online { background: var(--utc-info-soft); color: var(--utc-info); }
.utc-teaching-mode-blended { background: var(--utc-accent-soft); color: var(--utc-accent); }
.utc-teaching-count {
    display: inline-flex; align-items: center; justify-content: center; min-width: 20px; height: 20px; padding: 0 6px;
    border-radius: 999px; font-size: .7rem; font-weight: 700; background: var(--utc-teaching-maroon); color: #fff;
}
.utc-teaching-count-soft { background: var(--utc-chip); color: var(--utc-text); }
.utc-teaching-status { display: inline-block; font-size: .75rem; font-weight: 700; padding: 3px 10px; border-radius: 999px; background: var(--utc-chip); color: var(--utc-text); }
.utc-teaching-status-submitted, .utc-teaching-status-verified { background: var(--utc-info-soft); color: var(--utc-info); }
.utc-teaching-status-approved { background: var(--utc-accent-soft); color: var(--utc-accent); }
.utc-teaching-status-published { background: var(--utc-ok-soft); color: var(--utc-ok); }
.utc-teaching-status-returned { background: var(--utc-err-soft); color: var(--utc-err); }
.utc-teaching-prose { line-height: 1.6; color: var(--utc-text); }
.utc-teaching-prose h1, .utc-teaching-prose h2, .utc-teaching-prose h3 { font-weight: 700; margin: 12px 0 6px; }
.utc-teaching-prose ul { list-style: disc; padding-left: 20px; }
.utc-teaching-prose ol { list-style: decimal; padding-left: 20px; }
.utc-teaching-prose p { margin: 6px 0; }
.utc-teaching-prose a { color: var(--utc-accent); text-decoration: underline; }
.utc-teaching-meta { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin: 8px 0; font-size: .875rem; color: var(--utc-text); }
.utc-teaching-snippet {
    margin: 8px 0; padding: 8px 12px; border-left: 4px solid var(--utc-teaching-gold); background: var(--utc-chip);
    border-radius: 0 8px 8px 0; font-size: .875rem; color: var(--utc-text); font-style: italic;
}

/* ---------- similarity ---------- */
.utc-teaching-sim { display: inline-block; font-weight: 800; font-size: .8rem; padding: 3px 10px; border-radius: 999px; }
.utc-teaching-sim-success { background: var(--utc-ok-soft); color: var(--utc-ok); }
.utc-teaching-sim-warning { background: var(--utc-warn-soft); color: var(--utc-warn); }
.utc-teaching-sim-danger { background: var(--utc-err-soft); color: var(--utc-err); }
.utc-teaching-sim-gray { background: var(--utc-chip); color: var(--utc-muted); }
.utc-teaching-matches { display: flex; flex-direction: column; gap: 12px; }
.utc-teaching-match { border: 1px solid var(--utc-line); border-radius: 10px; padding: 12px; background: var(--utc-card); color: var(--utc-text); }
.utc-teaching-match header { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.utc-teaching-answer {
    max-height: 320px; overflow: auto; padding: 12px; border: 1px solid var(--utc-line); border-radius: 8px;
    background: var(--utc-chip); color: var(--utc-text); font-size: .875rem; line-height: 1.55;
}

/* ---------- discussion ---------- */
.utc-teaching-thread { display: flex; flex-direction: column; gap: 10px; }
.utc-teaching-post { border: 1px solid var(--utc-line); border-radius: 10px; padding: 10px 12px; background: var(--utc-card); color: var(--utc-text); }
.utc-teaching-post header { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-bottom: 6px; }
.utc-teaching-post-first { border-left: 4px solid var(--utc-teaching-navy); }
.utc-teaching-post-hl { border-color: var(--utc-teaching-gold); box-shadow: 0 0 0 2px color-mix(in srgb, var(--utc-teaching-gold) 35%, transparent); }
.utc-teaching-post-body { font-size: .9rem; line-height: 1.55; }
.utc-teaching-thread-row {
    display: flex; width: 100%; justify-content: space-between; align-items: center; gap: 10px; text-align: left;
    padding: 10px 4px; border: 0; border-bottom: 1px solid var(--utc-line); background: none; color: var(--utc-text); cursor: pointer;
}
.utc-teaching-thread-row:hover { background: var(--utc-chip); }
.utc-teaching-thread-row small { display: block; color: var(--utc-muted); }

/* ---------- mark sheet ---------- */
.utc-teaching-prefilled { background: var(--utc-info-soft) !important; }
.utc-teaching-prefilled-key { display: inline-block; width: 12px; height: 12px; border-radius: 3px; background: var(--utc-info-soft); border: 1px solid var(--utc-info); vertical-align: middle; }

/* ---------- KPIs & bars ---------- */
.utc-teaching-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(170px, 1fr)); gap: 12px; margin: 4px 0 16px; }
.utc-teaching-kpi { border-radius: 14px; padding: 14px 16px; color: #fff; display: flex; flex-direction: column; gap: 2px; box-shadow: 0 2px 8px rgba(0,0,0,.08); }
.utc-teaching-kpi span { font-size: .78rem; opacity: .9; text-transform: uppercase; letter-spacing: .04em; }
.utc-teaching-kpi strong { font-size: 1.7rem; line-height: 1.2; }
.utc-teaching-kpi small { opacity: .85; }
.utc-teaching-kpi-navy { background: linear-gradient(135deg, var(--utc-teaching-navy), #2f5d8f); }
.utc-teaching-kpi-maroon { background: linear-gradient(135deg, var(--utc-teaching-maroon), #a8394a); }
.utc-teaching-kpi-green { background: linear-gradient(135deg, var(--utc-teaching-green), #22a35a); }
.utc-teaching-kpi-gold { background: linear-gradient(135deg, #a8841a, var(--utc-teaching-gold)); color: #1b1b1b; }
.utc-teaching-bars { display: flex; flex-direction: column; gap: 8px; }
.utc-teaching-bar-row { display: grid; grid-template-columns: 130px 1fr 48px; gap: 10px; align-items: center; font-size: .85rem; color: var(--utc-text); }
.utc-teaching-bar-label small { color: var(--utc-muted); }
.utc-teaching-bar-label-wide { grid-column: 1 / -1; }
.utc-teaching-bar-row:has(.utc-teaching-bar-label-wide) { grid-template-columns: 1fr 60px; }
.utc-teaching-bar-row:has(.utc-teaching-bar-label-wide) .utc-teaching-bar-label { grid-column: 1 / -1; }
.utc-teaching-bar-track { height: 14px; border-radius: 999px; background: var(--utc-chip); overflow: hidden; }
.utc-teaching-bar { display: block; height: 100%; min-width: 2px; border-radius: 999px; background: linear-gradient(90deg, var(--utc-teaching-navy), var(--utc-teaching-teal)); }
.utc-teaching-bar-fail { background: linear-gradient(90deg, var(--utc-teaching-maroon), #e25563); }
.utc-teaching-bar-gold { background: linear-gradient(90deg, #a8841a, var(--utc-teaching-gold)); }
.utc-teaching-bar-value { text-align: right; font-weight: 700; }
.utc-teaching-chooser { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 10px; }
.utc-teaching-choice { display: flex; flex-direction: column; gap: 2px; padding: 12px; border-radius: 10px; border: 1px solid var(--utc-line); color: var(--utc-text) !important; text-decoration: none; }
.utc-teaching-choice:hover { border-color: var(--utc-accent); }

/* ---------- student: my classes ---------- */
.utc-teaching-classes { display: grid; grid-template-columns: repeat(auto-fill, minmax(290px, 1fr)); gap: 16px; }
.utc-teaching-class { border-radius: 16px; overflow: hidden; background: var(--utc-card); border: 1px solid var(--utc-line); display: flex; flex-direction: column; box-shadow: 0 2px 10px rgba(0,0,0,.05); }
.utc-teaching-class-head { display: block; padding: 16px; color: #fff !important; text-decoration: none; min-height: 96px; }
.utc-teaching-class-head h3 { font-size: 1.05rem; font-weight: 700; margin: 8px 0 0; line-height: 1.3; }
.utc-teaching-accent-0 .utc-teaching-class-head { background: linear-gradient(135deg, var(--utc-teaching-navy), #2f6fae); }
.utc-teaching-accent-1 .utc-teaching-class-head { background: linear-gradient(135deg, var(--utc-teaching-maroon), #c0485a); }
.utc-teaching-accent-2 .utc-teaching-class-head { background: linear-gradient(135deg, var(--utc-teaching-teal), #14b8a6); }
.utc-teaching-accent-3 .utc-teaching-class-head { background: linear-gradient(135deg, #a8841a, var(--utc-teaching-gold)); color: #1b1b1b !important; }
.utc-teaching-accent-4 .utc-teaching-class-head { background: linear-gradient(135deg, var(--utc-teaching-purple), #8b5cf6); }
.utc-teaching-accent-5 .utc-teaching-class-head { background: linear-gradient(135deg, var(--utc-teaching-green), #34c26b); }
.utc-teaching-class-body { padding: 14px 16px 16px; display: flex; flex-direction: column; gap: 10px; flex: 1; color: var(--utc-text); }
.utc-teaching-lecturer { display: flex; align-items: center; gap: 10px; }
.utc-teaching-lecturer small { display: block; color: inherit; opacity: .8; font-size: .75rem; }
.utc-teaching-chips { display: flex; flex-wrap: wrap; gap: 6px; }
.utc-teaching-due { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 6px; font-size: .85rem; }
.utc-teaching-due li { display: flex; align-items: center; gap: 8px; }
.utc-teaching-due small { margin-left: auto; color: var(--utc-warn); font-weight: 600; }
.utc-teaching-due-dot { width: 8px; height: 8px; border-radius: 999px; background: var(--utc-teaching-maroon); flex: none; }

/* ---------- student: classroom ---------- */
.utc-teaching-hero {
    display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap;
    padding: 20px; border-radius: 16px; color: #fff;
    background: linear-gradient(120deg, var(--utc-teaching-navy) 0%, #2f5d8f 55%, var(--utc-teaching-maroon) 100%);
}
.utc-teaching-hero .utc-h2 { color: #fff; margin-top: 6px; }
.utc-teaching-hero p { opacity: .9; font-size: .9rem; }
.utc-teaching-tabs { display: flex; gap: 6px; overflow-x: auto; padding: 2px; -webkit-overflow-scrolling: touch; }
.utc-teaching-tab {
    display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
    border: 1px solid var(--utc-line); background: var(--utc-card); color: var(--utc-text);
    padding: 8px 14px; border-radius: 999px; font-weight: 600; font-size: .875rem; cursor: pointer;
}
.utc-teaching-tab:hover { border-color: var(--utc-accent); }
.utc-teaching-tab.is-active { background: var(--utc-teaching-navy); border-color: var(--utc-teaching-navy); color: #fff; }
.utc-teaching-tab-gold.is-active { background: var(--utc-teaching-gold); border-color: var(--utc-teaching-gold); color: #1b1b1b; }
.utc-teaching-stack { display: flex; flex-direction: column; gap: 16px; }
.utc-teaching-slot { display: flex; flex-wrap: wrap; gap: 4px 10px; align-items: baseline; padding: 8px 0; border-bottom: 1px dashed var(--utc-line); font-size: .9rem; }
.utc-teaching-slot:last-child { border-bottom: 0; }
.utc-teaching-materials { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 10px; }
.utc-teaching-material {
    display: flex; align-items: center; gap: 10px; padding: 12px; border-radius: 12px; border: 1px solid var(--utc-line);
    color: var(--utc-text) !important; text-decoration: none; background: var(--utc-card);
}
.utc-teaching-material:hover { border-color: var(--utc-accent); }
.utc-teaching-material small { display: block; color: var(--utc-muted); }
.utc-teaching-material-icon { width: 38px; height: 38px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; flex: none; font-size: 1.1rem; }
.utc-teaching-material-file .utc-teaching-material-icon { background: var(--utc-info-soft); color: var(--utc-info); }
.utc-teaching-material-link .utc-teaching-material-icon { background: var(--utc-ok-soft); color: var(--utc-ok); }
.utc-teaching-material-video .utc-teaching-material-icon { background: var(--utc-err-soft); color: var(--utc-err); }
.utc-teaching-assessment { border-left: 5px solid var(--utc-teaching-navy); }
.utc-teaching-details summary { cursor: pointer; font-weight: 600; color: var(--utc-accent); margin: 6px 0; }
.utc-teaching-feedback { margin: 10px 0; padding: 10px 12px; border-radius: 10px; background: var(--utc-ok-soft); color: var(--utc-ok); }
.utc-teaching-feedback p { color: var(--utc-text); margin-top: 4px; }
.utc-teaching-submit { margin-top: 12px; display: flex; flex-direction: column; gap: 10px; padding-top: 12px; border-top: 1px solid var(--utc-line); }
.utc-teaching-rating { border: 0; padding: 10px 0; margin: 0; border-bottom: 1px solid var(--utc-line); color: var(--utc-text); }
.utc-teaching-rating legend { font-weight: 600; font-size: .9rem; margin-bottom: 6px; }
.utc-teaching-scale { display: flex; gap: 8px; flex-wrap: wrap; }
.utc-teaching-scale label { cursor: pointer; }
.utc-teaching-scale input { position: absolute; opacity: 0; pointer-events: none; }
.utc-teaching-scale span {
    display: inline-flex; width: 40px; height: 40px; align-items: center; justify-content: center; border-radius: 999px;
    border: 2px solid var(--utc-line); font-weight: 700; color: var(--utc-text);
}
.utc-teaching-scale label.is-picked span, .utc-teaching-scale input:checked + span { background: var(--utc-teaching-gold); border-color: var(--utc-teaching-gold); color: #1b1b1b; }

@media (max-width: 640px) {
    .utc-teaching-bar-row { grid-template-columns: 90px 1fr 40px; }
    .utc-teaching-hero { padding: 16px; }
    .utc-teaching-kpi strong { font-size: 1.4rem; }
}