:root{--bg: #1e1e1e;--panel: #252526;--panel2: #181818;--fg: #d4d4d4;--muted: #9e9e9e;--accent: #569cd6;--border: #3c3c3c;--ok: #89d185;--bad: #f48771;--warn: #e2c08d;--ok-ink: var(--ok);--bad-ink: var(--bad);--accent-ink: var(--accent);--warn-ink: var(--warn);--dial-mid: #e0a83a;--btn: #0078d4;--btn-fg: #ffffff;--btn-quiet: #3a3d41;--welcome-glow: #2d2d30;--code-bg: #181818;--code-fg: #d4d4d4;--slides: #e0a72c;--slides-hover: #f2bb46;--slides-fg: #1f1500;--video: #c0392b;--video-hover: #a93226;--video-fg: #fff2f0;--tag-warmup: #c586c0;--tag-explore: #d7ba7d;--tag-homework: #89d185;--tag-textbook: #6fb8e0;--tag-challenge: #c586c0;--tag-optional: #c586c0;--tag-practice: #4ec9b0;--tag-debug: #f48771;--tag-exit: #f85149;--tag-miniproject: #ff6b6b;--crumb-unit: #e8a14a;--crumb-section: #5aa9d6;--bubble-challenge: #a371f7;--ink-warmup: #cf86ca;--ink-explore: var(--tag-explore);--ink-homework: var(--tag-homework);--ink-textbook: var(--tag-textbook);--ink-challenge: #cf86ca;--ink-optional: #cf86ca;--ink-practice: var(--tag-practice);--ink-debug: var(--tag-debug);--ink-exit: #fe6b60;--ink-miniproject: #ff7170;--ink-crumb-unit: var(--crumb-unit);--ink-crumb-section: var(--crumb-section);--ink-bubble-challenge: var(--bubble-challenge);--graph-surface: #181818;--graph-grid: #3c3c3c;--graph-ink: #9e9e9e;--graph-1: #3987e5;--graph-2: #d95926;--graph-3: #199e70;--graph-4: #c98500;--graph-5: #d55181;--graph-6: #008300;font-family:system-ui,-apple-system,sans-serif}:root[data-theme=light]{--bg: #f3f3f3;--panel: #ffffff;--panel2: #ececec;--fg: #1f1f1f;--muted: #616161;--accent: #005fb8;--border: #d4d4d4;--ok: #107c10;--bad: #c52f2f;--warn: #8f6000;--ok-ink: #166015;--bad-ink: #a41e21;--accent-ink: #185eab;--warn-ink: #7b5618;--ink-warmup: #a722a3;--ink-explore: #7e611a;--ink-homework: #1c751d;--ink-textbook: #1b6b90;--ink-challenge: #a722a3;--ink-optional: #a722a3;--ink-practice: #1e7061;--ink-debug: #974f19;--ink-exit: #b82222;--ink-miniproject: #bb2230;--ink-crumb-unit: #895919;--ink-crumb-section: #1d698f;--ink-bubble-challenge: #8b32f1;--ink-keyword: #1b659c;--ink-type: #1e7061;--ink-ident: #6d6b1a;--ink-string: #a34619;--ink-punct: #57606a;--btn: #005fb8;--btn-quiet: #d9d9d9;--welcome-glow: #ffffff}:root[data-theme=beige]{--bg: #f2ead8;--panel: #eae0c8;--panel2: #e3d7ba;--fg: #40362a;--muted: #655b48;--accent: #7f5400;--border: #cfc09a;--ok: #186527;--bad: #ab1e1f;--warn: #7e5400;--ok-ink: #11521e;--bad-ink: #8c1818;--accent-ink: #6f4c13;--warn-ink: #755117;--ink-warmup: #961e93;--ink-explore: #715616;--ink-homework: #18691a;--ink-textbook: #195f7f;--ink-challenge: #961e93;--ink-optional: #961e93;--ink-practice: #186456;--ink-debug: #874616;--ink-exit: #a31d1d;--ink-miniproject: #a71f2b;--ink-crumb-unit: #7a4f17;--ink-crumb-section: #185d80;--ink-bubble-challenge: #7d26dc;--ink-keyword: #175a8b;--ink-type: #186456;--ink-ident: #615f16;--ink-string: #923e16;--ink-punct: #4d535b;--btn: #7a5d10;--btn-quiet: #dccfab;--welcome-glow: #faf4e4;--slides: #c8871a;--slides-hover: #dd9a28;--slides-fg: #2b1d00}:root[data-theme=night]{--bg: #0d1b2a;--panel: #13253a;--panel2: #0a1523;--fg: #d6e2f0;--muted: #8fa5bd;--accent: #4fc1ff;--border: #24405f;--ok: #7fd88f;--bad: #ff8b7b;--btn: #1a6db3;--btn-quiet: #22344c;--welcome-glow: #14273d;--code-bg: #0a1523}*{box-sizing:border-box}[hidden]{display:none!important}body{margin:0;height:100vh;display:flex;flex-direction:column;background:var(--bg);color:var(--fg)}header{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem;background:var(--panel);border-bottom:1px solid var(--border)}header h1{font-size:1rem;margin:0;font-weight:600}#auth{display:flex;align-items:center;gap:.6rem}.home-btn{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;padding:0;background:none;border:1px solid transparent;border-radius:6px;color:var(--muted);cursor:pointer}.home-btn:hover,.home-btn:focus-visible{color:var(--accent);border-color:var(--border);filter:none;outline:none}#who{color:var(--muted);font-size:.85rem}#teach-link,#classroom-link,#ai-link,#files-link{color:var(--accent);font-size:.85rem;text-decoration:none;font-weight:600}#teach-link:hover,#classroom-link:hover,#ai-link:hover,#files-link:hover{text-decoration:underline}#ai-link{display:inline-flex;align-items:center;gap:.25rem}.ai-link-badge{display:inline-block;min-width:1.15rem;padding:0 .3rem;border-radius:.6rem;background:var(--bad);color:var(--bg);font-size:.72rem;font-weight:700;line-height:1.15rem;text-align:center;font-variant-numeric:tabular-nums}.ai-link-badge.urgent{padding:0;border-radius:50%}#profile-wrap{position:relative}#profile-btn{background:var(--btn-quiet);color:var(--fg);padding:.25rem .55rem;font-size:.85rem}#profile-menu{position:absolute;right:0;top:calc(100% + 6px);min-width:185px;padding:.35rem;background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 10px 32px #00000073;z-index:300}.profile-menu-label{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);padding:.25rem .5rem .35rem}.theme-row{display:flex;align-items:center;gap:.5rem;width:100%;padding:.35rem .5rem;background:transparent;color:var(--fg);text-align:left;border-radius:6px;font-weight:500}.theme-row:hover{background:var(--panel2)}.theme-swatch{flex:0 0 auto;width:14px;height:14px;border-radius:4px;border:1px solid var(--border)}.theme-name{flex:1}.theme-row .theme-check{visibility:hidden;color:var(--ok)}.theme-row.active .theme-check{visibility:visible}#role-badge{font-size:.7rem;text-transform:uppercase;letter-spacing:.05em;padding:.1rem .4rem;border-radius:999px;font-weight:700}.role-teacher{background:#dcdcaa;color:#1e1e1e}.role-student{background:#4ec9b0;color:#1e1e1e}#welcome{flex:1;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 30%,var(--welcome-glow),var(--bg))}.welcome-card{text-align:center;max-width:34rem;padding:1rem}.welcome-card button{font-size:1.05rem;padding:.8rem 1.6rem;border-radius:8px}.welcome-card button:disabled{opacity:.45;cursor:not-allowed}.welcome-title{margin:0 0 .2rem}.welcome-sub{margin:0 0 1.2rem;color:var(--muted);font-size:.95rem}.welcome-domains{margin:.8rem 0 0;font-size:.85rem;color:var(--muted)}.welcome-error{margin:1rem 0 0!important;color:var(--bad)!important;font-size:.85rem}.build-id{margin:.8rem 0 0;font-size:.7rem;color:var(--muted)}#profile-menu .build-id{margin:.35rem 0 0;padding:.3rem .5rem .15rem;border-top:1px solid var(--border)}grammarly-extension,grammarly-desktop-integration,grammarly-popups,[data-grammarly-part]{display:none!important}#app{flex:1;display:grid;grid-template-columns:260px 6px 1fr;min-height:0}.drag-col{cursor:col-resize;background:var(--border);width:6px;flex:0 0 6px;transition:background .12s}.drag-col:hover,.drag-col.dragging{background:var(--accent)}body.col-resizing{cursor:col-resize;-webkit-user-select:none;user-select:none}#app.full-bleed{grid-template-columns:1fr}#sidebar{background:var(--panel);border-right:1px solid var(--border);overflow:auto;padding:.5rem 0}.nav-header{display:flex;align-items:center;gap:.5rem;padding:.5rem .75rem;border-bottom:1px solid var(--border);position:sticky;top:0;background:var(--panel)}.nav-back{background:var(--panel2);color:var(--fg);padding:.2rem .55rem;font-size:.9rem;line-height:1}.nav-title{font-size:.8rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-title.crumb{font-size:1rem;text-transform:none;letter-spacing:0;white-space:normal;line-height:1.3;color:var(--fg)}.nav-crumb-unit,.nav-crumb-section{font-weight:700;white-space:nowrap}.nav-crumb-unit{color:var(--ink-crumb-unit)}.nav-crumb-section{color:var(--ink-crumb-section)}.nav-crumb-rest{color:var(--fg);font-weight:600}.nav-list{padding:.4rem 0}.nav-row{display:flex;align-items:center;justify-content:space-between;gap:.5rem;width:100%;text-align:left;background:none;color:var(--fg);border:none;border-left:2px solid transparent;border-radius:0;font-weight:500;padding:.5rem 1rem;font-size:.85rem;cursor:pointer}.nav-row:hover{background:var(--panel2)}.nav-row-2{align-items:center;padding-top:.45rem;padding-bottom:.45rem}.nav-row-main{display:flex;flex-direction:column;gap:.1rem;min-width:0;flex:1 1 auto}.nav-row-name{font-size:.85rem;font-weight:600;line-height:1.2;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-row-sub{font-size:.65rem;font-weight:500;letter-spacing:.04em;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-row-2.active .nav-row-sub{color:var(--accent)}.nav-tag{font-size:.58rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:.08rem .4rem;border-radius:999px;border:1px solid var(--muted);color:var(--muted);white-space:nowrap;flex:0 0 auto}.nav-tag.tag-warmup{color:var(--ink-warmup);background:color-mix(in srgb,var(--tag-warmup) 14%,transparent);border-color:currentColor}.nav-tag.tag-explore{color:var(--ink-explore);background:color-mix(in srgb,var(--tag-explore) 14%,transparent);border-color:currentColor}.nav-tag.tag-homework{color:var(--ink-homework);background:color-mix(in srgb,var(--tag-homework) 14%,transparent);border-color:currentColor}.nav-tag.tag-textbook{color:var(--ink-textbook);background:color-mix(in srgb,var(--tag-textbook) 14%,transparent);border-color:currentColor}.nav-tag.tag-challenge{color:var(--ink-challenge);background:color-mix(in srgb,var(--tag-challenge) 14%,transparent);border-color:currentColor}.nav-tag.tag-optional{color:var(--ink-optional);background:color-mix(in srgb,var(--tag-optional) 14%,transparent);border-color:currentColor}.nav-tag.tag-practice{color:var(--ink-practice);background:color-mix(in srgb,var(--tag-practice) 14%,transparent);border-color:currentColor}.nav-tag.tag-debug{color:var(--ink-debug);background:color-mix(in srgb,var(--tag-debug) 14%,transparent);border-color:currentColor}.nav-tag.tag-exit{color:var(--ink-exit);background:color-mix(in srgb,var(--tag-exit) 14%,transparent);border-color:currentColor}.nav-tag.tag-miniproject,.ov-badge.path-miniproject{color:var(--ink-miniproject);background:color-mix(in srgb,var(--tag-miniproject) 14%,transparent);border-color:currentColor;animation:tag-rainbow 6s linear infinite}@keyframes tag-rainbow{to{filter:hue-rotate(360deg)}}@media(prefers-reduced-motion:reduce){.nav-tag.tag-miniproject,.ov-badge.path-miniproject{animation:none}}.nav-row.active{background:var(--panel2);border-left-color:var(--accent);color:var(--accent)}.nav-chev{color:var(--muted);font-size:1rem}.nav-empty{padding:1rem;color:var(--muted);font-size:.85rem;font-style:italic}.fs-gate{position:fixed;top:0;right:0;bottom:0;left:0;z-index:95;background:var(--bg);display:flex;align-items:center;justify-content:center;padding:1.5rem}.fs-card{max-width:34rem;text-align:center}.fs-title{margin:0 0 .75rem;font-size:1.6rem;color:var(--fg)}.fs-line{margin:0 0 1.5rem;color:var(--muted);line-height:1.5}.fs-line:empty{display:none}.fs-go{font-size:1.15rem;font-weight:700;padding:.8rem 2.2rem;border-radius:8px;background:var(--btn);color:var(--btn-fg);border:none;cursor:pointer}.fs-exit{position:fixed;right:12px;bottom:12px;z-index:94;font-size:.78rem;padding:.25rem .7rem;border-radius:999px;background:var(--panel2);color:var(--muted);border:1px solid var(--border)}.fs-note{position:fixed;top:12px;left:50%;transform:translate(-50%);z-index:96;max-width:90vw;padding:.5rem .9rem;border-radius:6px;background:var(--panel2);color:var(--warn-ink);border:1px solid var(--border);font-size:.85rem}.nav-group{margin-top:.6rem;padding:.5rem 1rem .3rem;border-top:1px solid var(--border);color:var(--muted);font-size:.75rem;font-weight:700;letter-spacing:.06em;text-transform:uppercase}.browse-exams{margin-top:1.5rem}.nav-slides{display:block;margin:.15rem .7rem .5rem;padding:.42rem .7rem;border-radius:6px;background:var(--slides);color:var(--slides-fg);font-size:.8rem;font-weight:700;letter-spacing:.02em;text-align:center;text-decoration:none}.nav-slides:hover{background:var(--slides-hover)}.nav-youtube{display:block;margin:0 .7rem .5rem;padding:.42rem .7rem;border-radius:6px;background:var(--video);color:var(--video-fg);font-size:.8rem;font-weight:700;letter-spacing:.02em;text-align:center;text-decoration:none}.nav-youtube:hover{background:var(--video-hover)}.nav-row.nav-section{flex-direction:column;align-items:stretch;gap:.25rem}.nav-section-top{display:flex;align-items:center;gap:.5rem}.nav-section-name{flex:1;min-width:0}.nav-pips{display:flex;flex-wrap:wrap;gap:3px}.pip{width:8px;height:8px;border-radius:999px;background:var(--panel2);box-sizing:border-box}.pip-done{background:var(--ok)}.pip-started{background:#d7ba7d}.pip-none{background:transparent;border:1px solid var(--border)}.pip-fail{background:var(--bad)}.nav-row.nav-prog{flex-direction:column;align-items:stretch;gap:.25rem}.nav-row.nav-prog .nav-pips{padding-left:.1rem}#content{min-width:0;min-height:0;overflow:auto}.placeholder{padding:2rem;color:var(--muted)}.home{max-width:820px;padding:2rem}.home-title{margin:0;font-size:1.5rem}.home-sub{color:var(--muted);margin:.3rem 0 1.5rem}.browse-head{display:flex;align-items:center;gap:.75rem;margin-bottom:1.5rem}.browse-head .home-title{font-size:1.3rem}.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:1rem}.home-grid{display:grid;grid-template-columns:minmax(220px,280px) minmax(280px,360px);gap:2rem;align-items:start}.home-actions{display:flex;flex-direction:column;gap:.75rem}.home-actions .card{width:100%}.home-due{display:flex;flex-direction:column;gap:1rem}.due-panel{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:.9rem 1rem}.due-panel:first-child{min-height:320px}.due-head{margin:0 0 .6rem;font-size:.95rem;font-weight:700}.due-empty{margin:0;color:var(--muted);font-size:.85rem}.due-row{display:flex;align-items:center;gap:.7rem;width:100%;padding:.5rem .4rem;background:none;border:0;border-top:1px solid var(--border);border-radius:0;color:var(--fg);text-align:left;font-weight:400;cursor:pointer}.due-row:first-of-type{border-top:0}.due-row:hover,.due-row:focus-visible{background:var(--panel2);filter:none;outline:none}.due-wheel{display:inline-flex;width:30px;height:30px;flex:0 0 auto}.due-text{display:flex;flex-direction:column;min-width:0}.due-title{font-weight:600;font-size:.92rem}.due-when{color:var(--muted);font-size:.8rem}@media(max-width:720px){.home-grid{grid-template-columns:1fr}.due-panel:first-child{min-height:0}}.card{display:flex;flex-direction:column;align-items:flex-start;gap:.3rem;text-align:left;background:var(--panel);color:var(--fg);border:1px solid var(--border);border-radius:10px;padding:1.1rem 1.2rem;cursor:pointer;transition:border-color .12s,transform .12s}.card:hover{border-color:var(--accent);transform:translateY(-2px)}.card-title{font-weight:700;font-size:.98rem}.card-desc{color:var(--muted);font-size:.82rem;font-weight:400}.doc{max-width:760px;padding:1.5rem 2rem;line-height:1.6}.doc h1{font-size:1.5rem}.doc h2{font-size:1.2rem;margin-top:1.5rem}.doc code{background:var(--panel2);padding:.1rem .35rem;border-radius:4px;font-family:ui-monospace,monospace;font-size:.85em;white-space:nowrap}.rubric-win .instr-body table.md-table{width:100%}.rubric-win .instr-body table.md-table th:first-child,.rubric-win .instr-body table.md-table td:first-child{white-space:nowrap}.doc table.md-table{border-collapse:collapse;margin:.6rem 0;font-size:.92em}.doc table.md-table th,.doc table.md-table td{border:1px solid var(--border);padding:.25rem .6rem;text-align:left;vertical-align:top}.doc table.md-table th{background:var(--panel2);font-weight:600}.doc blockquote{margin:1rem 0;padding:.5rem 1rem;border-left:3px solid var(--accent);background:var(--panel);color:var(--muted)}.item-prompt{color:var(--muted);margin-bottom:1rem}.md-code{background:var(--code-bg);color:var(--code-fg);border:1px solid var(--border);border-radius:6px;padding:.75rem 1rem;overflow-x:auto;font-family:ui-monospace,monospace;font-size:.85rem;line-height:1.5}.md-code code{background:none;padding:0;border-radius:0;font-size:inherit;color:inherit;white-space:pre}.md-code .tok-keyword{color:var(--hue-keyword)}.md-code .tok-typeName,.md-code .tok-className{color:var(--hue-type)}.md-code .tok-string{color:var(--hue-string)}.md-code .tok-comment{color:#6a9955;font-style:italic}.md-code .tok-javadoc{color:#8ba3b8}.md-code .tok-number{color:#b5cea8}.md-code .tok-variableName{color:#9cdcfe}.md-code .tok-definition,.md-code .tok-function{color:var(--hue-ident)}.md-code .tok-operator,.md-code .tok-punctuation{color:var(--hue-punct)}.md-img{display:block;max-width:min(100%,640px);border-radius:6px;margin:1rem auto .25rem}.md-figure{margin:1rem 0;text-align:center}.puzzle-svg{width:100%;max-width:320px;height:auto;color:var(--fg)}.doc a,.lesson a{color:var(--accent)}.tb-lesson{max-width:none}.doc.lesson-view{max-width:none;width:100%}:root{--hue-keyword: #569cd6;--hue-type: #4ec9b0;--hue-ident: #dcdcaa;--hue-string: #ce9178;--hue-punct: #b8b8b8;--hue-purple: #c586c0;--ink-keyword: #52a5e9;--ink-type: var(--hue-type);--ink-ident: var(--hue-ident);--ink-string: var(--hue-string);--ink-punct: var(--hue-punct)}.lesson .lesson-parsons,.lesson .lesson-hparsons,.lesson .lesson-run,.lesson .lesson-mcq,.lesson .lesson-note,.lesson .lesson-youtube,.lesson .lesson-visualizer{margin:1.25rem 0}.lesson .lesson-parsons,.lesson .lesson-hparsons{border:1px solid var(--border);border-left:3px solid var(--hue-type);border-radius:6px;padding:.9rem 1rem;background:var(--panel)}.lesson .lesson-run{border-left:3px solid var(--accent)}.lesson .lesson-mcq{border-left:3px solid var(--hue-purple)}.lesson .tb-prose h2{border-bottom:2px solid color-mix(in srgb,var(--accent) 45%,transparent);padding-bottom:.25rem}.lesson .tb-prose img{max-width:min(100%,460px);height:auto}.lesson .lesson-youtube{max-width:780px}.lesson-run{position:relative;border:1px solid var(--border);border-radius:6px;overflow:hidden;background:var(--panel2)}.lesson-run-bar{display:flex;align-items:center;gap:.75rem;padding:.4rem .6rem;background:var(--panel);border-bottom:1px solid var(--border)}.lesson-run-bar .test-bubbles{margin-left:auto}.lesson-run-status{color:var(--muted);font-size:.8rem}.lesson-run-progress{padding:.35rem .6rem;font-size:.8rem;color:var(--muted);background:var(--panel);border-top:1px solid var(--border)}.lesson-run-progress.ok{color:var(--ok);font-weight:600}.lesson-done-badge{color:var(--ok);font-size:.8rem;font-weight:600;margin-bottom:.3rem}.lesson-run-editor .cm-editor{font-size:.85rem}.lesson-run-out{margin:0;padding:.6rem .8rem;max-height:14rem;overflow:auto;font-family:ui-monospace,monospace;font-size:.85rem;white-space:pre-wrap;tab-size:4;border-top:1px solid var(--border)}.lesson-mcq{border:1px solid var(--border);border-radius:6px;padding:.9rem 1rem;background:var(--panel)}.lesson-mcq-stem>:first-child{margin-top:0}.lesson-mcq-opt{display:grid;grid-template-columns:auto 1fr;align-items:start;gap:.5rem;padding:.35rem .5rem;border:1px solid transparent;border-radius:4px;cursor:pointer}.lesson-mcq-opt.ok{border-color:var(--ok)}.lesson-mcq-opt.bad{border-color:var(--bad)}.lesson-mcq.predict.locked .lesson-mcq-opt{cursor:default;opacity:.5}.lesson-mcq.predict.locked .lesson-mcq-opt.picked{opacity:1;border-color:var(--border);background:var(--bg);font-weight:600}.lesson-mcq-fb{grid-column:2;color:var(--muted);font-size:.85rem;margin-top:.25rem}.lesson-mcq-bar{display:flex;align-items:center;gap:.75rem;margin-top:.6rem}.lesson-mcq-result.ok{color:var(--ok)}.lesson-mcq-result.bad{color:var(--bad)}.lesson-text{border:1px solid var(--border);border-radius:6px;padding:.9rem 1rem;background:var(--panel)}.lesson-text-stem>:first-child{margin-top:0}.lesson-text-input{width:100%;max-width:22rem;margin-top:.6rem;padding:.4rem .6rem;font-size:.95rem;color:var(--fg);background:var(--panel2);border:1px solid var(--border);border-radius:4px}.lesson-text-input:focus{outline:none;border-color:var(--accent)}.lesson-text-bar{display:flex;align-items:center;gap:.75rem;margin-top:.6rem}.lesson-text-reveal{background:var(--btn-quiet);color:var(--fg)}.lesson-text-explain{margin-top:.6rem;color:var(--muted);font-size:.85rem}.lesson-text-explain>:first-child{margin-top:0}.lesson-text-explain>:last-child{margin-bottom:0}.lesson-free{border:1px solid var(--border);border-radius:6px;padding:.9rem 1rem;background:var(--panel)}.lesson-free-input{display:block;width:100%;margin-top:.6rem;padding:.5rem .6rem;font:inherit;font-size:.95rem;line-height:1.5;color:var(--fg);background:var(--panel2);border:1px solid var(--border);border-radius:4px;resize:vertical}.lesson-free-input:focus{outline:none;border-color:var(--accent)}.lesson-note{border-left:3px solid var(--accent);background:var(--panel);border-radius:0 6px 6px 0;padding:.6rem 1rem}.lesson-note>:first-child{margin-top:0}.lesson-note>:last-child{margin-bottom:0}.lesson-youtube{position:relative;width:100%;aspect-ratio:16 / 9}.lesson-youtube iframe{position:absolute;top:0;right:0;bottom:0;left:0;width:100%;height:100%;border:0;border-radius:6px}.lesson-visualizer{width:100%;height:34rem;border:1px solid var(--border);border-radius:6px;background:var(--panel2);overflow:hidden}.lesson-visualizer iframe{display:block;width:100%;height:100%;border:0}.lesson-ro button:disabled{opacity:.5;cursor:default}.lesson-ro [inert]{opacity:.85}.lesson-ro .lesson-active{box-shadow:0 0 0 2px var(--accent)}.lesson-ro .lesson-mcq.predict.locked .lesson-mcq-opt.picked.ok{border-color:var(--ok)}.lesson-ro .lesson-mcq.predict.locked .lesson-mcq-opt.picked.bad{border-color:var(--bad)}.lesson-ro .lesson-pulse{animation:lesson-pulse .9s ease-out}.lesson-ro .lesson-pulse.ok{--pulse: var(--ok)}.lesson-ro .lesson-pulse.bad{--pulse: var(--bad)}@keyframes lesson-pulse{0%{outline:3px solid var(--pulse, var(--accent));outline-offset:2px}to{outline:3px solid transparent;outline-offset:2px}}.parsons{list-style:none;margin:0 0 1rem;padding:0;counter-reset:pline}.parsons-line{display:flex;align-items:baseline;gap:.6rem;font-family:ui-monospace,monospace;font-size:.85rem;white-space:pre;background:var(--panel2);border:1px solid var(--border);border-left:3px solid var(--hue-type);border-radius:4px;padding:.4rem .6rem;margin:.3rem 0;cursor:grab;transition:transform .12s ease,box-shadow .12s ease,border-color .12s ease}.parsons-line:before{counter-increment:pline;content:counter(pline);color:var(--ink-type);font-size:.75rem;min-width:1.1em;text-align:right;opacity:.8}.parsons-line:hover{transform:translate(2px);box-shadow:0 2px 8px #00000059}.parsons-line.dragging{opacity:.5;border-color:var(--accent)}.hp-label{color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.06em;margin:.6rem 0 .3rem}.hp-tray,.hp-bar{display:flex;flex-wrap:wrap;align-items:center;gap:.45rem;min-height:2.6rem;padding:.45rem;border-radius:6px}.hp-tray{background:var(--panel2);border:1px solid var(--border)}.hp-bar{background:color-mix(in srgb,var(--hue-ident) 9%,var(--panel2));border:2px dashed color-mix(in srgb,var(--hue-ident) 55%,transparent)}.hp-bar:empty:after{content:"drop blocks here →";color:var(--muted);font-size:.8rem;padding-left:.3rem}.hp-chip{font-family:ui-monospace,monospace;font-size:.9rem;padding:.35rem .65rem;border-radius:6px;cursor:grab;transition:transform .12s ease,box-shadow .12s ease;border:1px solid}.hp-chip:hover{transform:translateY(-2px);box-shadow:0 3px 10px #00000073}.hp-chip:active{cursor:grabbing}.hp-chip.dragging{opacity:.45}.hp-keyword{color:var(--ink-keyword);border-color:var(--hue-keyword);background:color-mix(in srgb,var(--hue-keyword) 14%,var(--panel))}.hp-type{color:var(--ink-type);border-color:var(--hue-type);background:color-mix(in srgb,var(--hue-type) 14%,var(--panel))}.hp-ident{color:var(--ink-ident);border-color:var(--hue-ident);background:color-mix(in srgb,var(--hue-ident) 14%,var(--panel))}.hp-string{color:var(--ink-string);border-color:var(--hue-string);background:color-mix(in srgb,var(--hue-string) 14%,var(--panel))}.hp-punct{color:var(--ink-punct);border-color:var(--hue-punct);background:color-mix(in srgb,var(--hue-punct) 12%,var(--panel))}.hparsons.solved .hp-bar{border-style:solid;border-color:var(--ok);background:color-mix(in srgb,var(--ok) 10%,var(--panel2))}.hparsons.solved .hp-bar .hp-chip{animation:hp-pop .35s ease}@keyframes hp-pop{0%{transform:scale(1)}40%{transform:scale(1.12)}to{transform:scale(1)}}.tb-status.ok{color:var(--ok);font-weight:600}.hp-shake{animation:hp-shake .35s ease}@keyframes hp-shake{0%,to{transform:translate(0)}25%{transform:translate(-5px)}75%{transform:translate(5px)}}.parsons-bar{display:flex;align-items:center;gap:.75rem}.parsons-result.ok{color:var(--ok)}.parsons-result.bad{color:var(--bad)}button.ghost{background:transparent;color:var(--muted);border:1px solid var(--border)}.predict-code{font-family:ui-monospace,monospace;font-size:.85rem;white-space:pre;background:var(--panel);border:1px solid var(--border);border-radius:6px;padding:.75rem 1rem;margin:0 0 1rem;overflow-x:auto}.predict-label{display:block;color:var(--muted);font-size:.85rem;margin-bottom:.35rem}.predict-input{width:100%;box-sizing:border-box;font-family:ui-monospace,monospace;font-size:.85rem;background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.5rem;margin-bottom:.75rem;resize:vertical}.predict-compare{display:flex;gap:1rem;margin-top:1rem}.predict-col{flex:1;min-width:0}.predict-col-head{font-size:.78rem;color:var(--muted);margin-bottom:.25rem}.predict-col-head.ok{color:var(--ok)}.predict-col-head.bad{color:var(--bad)}.predict-col pre{font-family:ui-monospace,monospace;font-size:.85rem;white-space:pre-wrap;background:var(--panel2);border:1px solid var(--border);border-radius:4px;padding:.5rem;margin:0}.pv-meter{display:flex;align-items:center;gap:.75rem;margin:0 0 1.5rem}.pv-track{flex:1;height:4px;border-radius:2px;background:var(--panel2);overflow:hidden}.pv-track i{display:block;height:100%;width:0;background:var(--accent);transition:width .25s ease}.pv-meter.done .pv-track i{background:var(--ok)}.pv-count{font-family:ui-monospace,monospace;font-size:.78rem;color:var(--muted);min-width:4.5ch;text-align:right}.pv-meter.done .pv-count{color:var(--ok)}.pv-group{margin-bottom:2rem}.pv-group-head{font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600;margin:0 0 .6rem}.doc.pv-doc{max-width:1000px}.pv-card{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,16rem);gap:1.25rem;align-items:start;background:var(--panel);border:1px solid var(--border);border-left:3px solid var(--border);border-radius:8px;padding:1rem 1.1rem;margin-bottom:.85rem;transition:border-color .2s ease}.pv-card.solved{border-left-color:var(--ok)}.pv-code{margin:0;font-size:.88rem;line-height:1.65;white-space:pre}.pv-asks{display:flex;flex-direction:column;gap:.5rem}.pv-ask{display:flex;align-items:center;gap:.45rem}.pv-ask-label{font-family:ui-monospace,monospace;font-size:.88rem;color:var(--fg);min-width:4ch;text-align:right}.pv-eq{color:var(--muted)}.pv-input{width:100%;min-width:0;box-sizing:border-box;font-family:ui-monospace,monospace;font-size:.88rem;background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.35rem .5rem}.pv-input:focus{outline:none;border-color:var(--accent)}.pv-ask.ok .pv-input{border-color:var(--ok);color:var(--ok);opacity:1}.pv-ask.bad .pv-input{border-color:var(--bad);color:var(--bad)}.pv-answer{font-family:ui-monospace,monospace;font-size:.88rem;color:var(--ok);white-space:nowrap;-webkit-user-select:all;user-select:all}.pv-answer:before{content:"→ ";color:var(--muted)}.pv-bar{display:flex;align-items:center;gap:.4rem;margin-top:.25rem}.pv-check{font-size:.82rem;padding:.3rem .7rem}.pv-redo{background:transparent;color:var(--muted);border:1px solid var(--border);font-size:1rem;line-height:1;padding:.25rem .55rem}.pv-redo:hover{color:var(--fg);border-color:var(--accent)}.pv-star{flex-basis:100%;color:var(--muted);font-size:.78rem;line-height:1.3}.pv-ask{flex-wrap:wrap}.pv-note{grid-column:1 / -1;margin:.35rem 0 0;padding-top:.75rem;border-top:1px solid var(--border);color:var(--muted);font-size:.85rem;line-height:1.55}@media(max-width:760px){.pv-card{grid-template-columns:minmax(0,1fr);gap:.9rem}}.pv-table{width:100%;border-collapse:separate;border-spacing:0 .5rem;margin-bottom:.5rem}.pv-table th{text-align:left;font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);font-weight:600;padding:0 .6rem .2rem}.pv-table th:first-child{padding-left:1.1rem}.pv-row{display:table-row;padding:0;margin:0;border:0}.pv-row td{background:var(--panel);border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:.7rem .6rem;vertical-align:middle}.pv-row td:first-child{border-left:3px solid var(--border);border-radius:8px 0 0 8px;padding-left:1.1rem;width:1%;white-space:nowrap}.pv-row.solved td:first-child{border-left-color:var(--ok)}.pv-row td:last-child{border-right:1px solid var(--border);border-radius:0 8px 8px 0;width:1%;white-space:nowrap}.pv-cell-ask{min-width:9rem}.pv-cell-ask .pv-ask{gap:.35rem}.pv-cell-ask .pv-input{width:7.5rem}.pv-cell-bar .pv-bar{margin-top:0}.pv-note-row .pv-note{border:0;padding:0 .6rem .5rem 1.1rem;margin:0}@media(max-width:760px){.pv-table,.pv-table thead,.pv-table tbody,.pv-row,.pv-row td{display:block}.pv-table thead{display:none}.pv-row{border:1px solid var(--border);border-radius:8px;margin-bottom:.85rem}.pv-row td,.pv-row td:first-child,.pv-row td:last-child{border:0;border-radius:0;width:auto;white-space:normal}.pv-row td:first-child{border-left:3px solid var(--border)}.pv-cell-ask:before{content:attr(data-head);display:block;font-size:.72rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin-bottom:.25rem}.pv-cell-ask .pv-input{width:100%}}.fn-rows{display:flex;flex-direction:column;gap:.6rem;margin:0 0 1rem}.fn-hint{font-family:ui-monospace,monospace;font-size:.8rem;color:var(--muted);white-space:pre-wrap;padding:0 0 0 calc(12px + .6rem)}.fn-row{display:grid;grid-template-columns:auto minmax(0,1fr);grid-template-rows:auto auto;column-gap:.6rem;align-items:center;background:var(--panel);border:1px solid var(--border);border-left:3px solid var(--border);border-radius:8px;padding:.55rem .8rem}.fn-row.ok{border-left-color:var(--ok)}.fn-row.bad{border-left-color:var(--bad)}.fn-swatch{grid-row:1 / span 2;width:10px;height:10px;border-radius:50%;display:inline-block;background:var(--c)}.fn-code{display:flex;flex-wrap:wrap;align-items:center;gap:.3rem;font-family:ui-monospace,monospace;font-size:.88rem;color:var(--fg)}.fn-kw{color:var(--accent)}.fn-plain{white-space:pre}.fn-input{font-family:ui-monospace,monospace;font-size:.88rem;background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.3rem .45rem;min-width:0}.fn-input:focus{outline:none;border-color:var(--accent)}.fn-name{width:9ch}.fn-expr{flex:1 1 12ch}.fn-row.bad .fn-input{border-color:var(--bad)}.fn-msg{grid-column:2;font-size:.8rem;color:var(--bad);font-family:ui-monospace,monospace;white-space:pre-wrap;margin-top:.2rem}.fn-msg:empty{display:none}.fn-bar{display:flex;align-items:center;gap:.8rem;margin:0 0 .6rem}.fn-graph-btn{font-size:.82rem;padding:.3rem .7rem}.fn-status{font-size:.85rem;color:var(--muted)}.fn-general{font-family:ui-monospace,monospace;font-size:.8rem;color:var(--bad);white-space:pre-wrap;margin:0 0 .6rem}.fn-general:empty{display:none}.fn-plot{background:var(--graph-surface);border:1px solid var(--border);border-radius:8px;padding:.6rem}.fn-canvas{display:block;width:100%}.fn-legend{display:flex;flex-wrap:wrap;gap:.4rem 1rem;padding:.5rem .2rem 0;font-family:ui-monospace,monospace;font-size:.8rem;color:var(--graph-ink)}.fn-legend-item{display:inline-flex;align-items:center;gap:.35rem}.fn-legend-item i{width:12px;height:3px;border-radius:2px;display:inline-block;background:var(--c)}.mz-chips{display:flex;flex-wrap:wrap;gap:.5rem;margin:0 0 1rem}.mz-chip{display:flex;align-items:baseline;gap:.45rem;padding:.3rem .65rem;background:var(--panel);border:1px solid var(--border);border-radius:999px;font-size:.8rem}.mz-chip-label{color:var(--muted)}.mz-chip-value{font-family:ui-monospace,monospace;font-weight:600;color:var(--muted)}.mz-chips.has-run .mz-chip-value{color:var(--fg)}.mz-diag-note{margin:-.5rem 0 .75rem;color:var(--muted);font-size:.8rem}.mz-board{display:grid;grid-template-columns:repeat(var(--mz-cols, 9),minmax(0,1fr));gap:clamp(2px,.8vw,6px);width:100%;max-width:40rem;margin:0 0 .75rem;padding:clamp(3px,1vw,8px);box-sizing:border-box;background:var(--panel2);border:1px solid var(--border);border-radius:10px;box-shadow:0 1px 2px #00000040,0 12px 32px -10px #00000080}.mz-board.mz-diag{border-color:var(--accent)}.mz-tile{position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:.2em;aspect-ratio:1;min-width:0;padding:.2em;box-sizing:border-box;background:var(--panel);border:1px solid var(--border);border-radius:6px;font-family:ui-monospace,monospace;font-size:clamp(.55rem,2.3vw,.85rem);line-height:1.15;color:var(--muted);text-align:center;box-shadow:inset 0 1px 3px #00000047}.mz-op{max-width:100%;overflow-wrap:anywhere}.mz-tile.mz-long .mz-op{font-size:.82em}.mz-tile.mz-start,.mz-tile.mz-end{font-weight:700;letter-spacing:.05em}.mz-tile.mz-power{border:1px dashed var(--accent);color:var(--accent)}.mz-tile.mz-power .mz-op{font-family:system-ui,-apple-system,sans-serif;font-size:.7em;font-weight:600;line-height:1.2;overflow-wrap:normal}.mz-tile.mz-here{border:2px solid var(--accent);color:var(--fg);background:var(--panel2);box-shadow:0 4px 12px #00000073;z-index:1}.mz-x{font-weight:700;color:var(--accent);max-width:100%;overflow-wrap:anywhere}.mz-tile.mz-here.mz-end .mz-x{color:var(--ok)}.mz-tile.mz-gold{background:var(--tag-explore);border-color:var(--tag-explore);color:var(--code-bg)}.mz-tile.mz-open{color:var(--fg);border-color:var(--accent);border-style:dashed}.mz-input{width:100%;min-width:0;box-sizing:border-box;font-family:ui-monospace,monospace;font-size:inherit;text-align:center;background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.15em .2em}.mz-input:focus{outline:none;border-color:var(--accent)}.mz-tile.mz-wiggle{animation:mz-wiggle .4s ease;border-color:var(--bad)}.mz-tile.mz-wiggle .mz-input{border-color:var(--bad);color:var(--bad)}@keyframes mz-wiggle{0%,to{transform:translate(0)}20%,60%{transform:translate(-4px)}40%,80%{transform:translate(4px)}}.mz-error{margin:0 0 .75rem;color:var(--bad);font-size:.85rem}.mz-bar{display:flex;align-items:center;gap:.5rem}.mz-reset{font-size:.82rem;padding:.3rem .7rem}@media(max-width:480px){.mz-board{gap:2px;padding:3px;border-radius:6px}.mz-tile{padding:.1em;border-radius:4px}}.trace-listing pre{margin:0 0 1rem;max-width:40rem}table.trace{border-collapse:collapse;margin:0 0 1rem;font-size:.85rem}table.trace th,table.trace td{border:1px solid var(--border);padding:.3rem .5rem;text-align:left}table.trace th{background:var(--panel);color:var(--muted);font-weight:600}table.trace th:not(.trace-line-head){text-align:center}.trace-line{font-family:ui-monospace,monospace;white-space:pre;color:var(--fg);background:var(--panel)}.trace-cell.disabled{text-align:center;color:var(--border);background:var(--panel2)}.trace-input{width:4.5rem;font-family:ui-monospace,monospace;font-size:.85rem;text-align:center;background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:3px;padding:.25rem}.trace-input.ok{border-color:var(--ok);color:var(--ok)}.trace-input.bad{border-color:var(--bad);color:var(--bad)}.trace-input.revealed{border-color:var(--accent);color:var(--accent)}.collab-status{font-size:.78rem;color:var(--muted)}.collab-status.live{color:var(--ok)}.collab-status.off{color:var(--bad)}.coop-status{font-size:.8rem;color:var(--muted);margin-left:auto}.coop-status.live{color:var(--ok);font-weight:600}.coop-status.paused{color:var(--warn)}.pb-play{background:var(--btn-quiet);color:var(--fg);white-space:nowrap}.cm-ySelectionCaret{position:relative;border-left:1px solid;border-right:1px solid;margin-left:-1px;margin-right:-1px;box-sizing:border-box}.cm-ySelectionInfo{position:absolute;top:-1.05em;left:-1px;font-size:.6rem;font-family:system-ui,sans-serif;padding:1px 4px;color:#11111b;white-space:nowrap;border-radius:3px 3px 3px 0;opacity:.9}.teacher{height:100%;display:flex;flex-direction:column;min-height:0}.teacher-body{flex:1;display:grid;grid-template-columns:240px 1fr 280px;min-height:0}.teach-nav{background:var(--panel);border-right:1px solid var(--border);overflow:auto;padding:.5rem 0;min-height:0}.teacher-main{display:flex;flex-direction:column;min-height:0;min-width:0}.rubric{margin:.75rem 1rem;max-width:640px;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.6rem .9rem .8rem}.rubric-head{display:flex;align-items:baseline;gap:.75rem;margin-bottom:.5rem}.rubric-title{font-weight:700;font-size:.85rem}.rubric-note{color:var(--muted);font-size:.75rem;font-style:italic}.rubric-table{width:100%;border-collapse:collapse;font-size:.78rem}.rubric-table th{color:var(--muted);font-weight:600;text-transform:uppercase;letter-spacing:.03em;font-size:.65rem;padding:.25rem .4rem;text-align:center}.rubric-table th.rubric-std-head{text-align:left}.rubric-std{padding:.3rem .4rem;color:var(--fg);white-space:nowrap}.rubric-cell{text-align:center;padding:.3rem .4rem}.rubric-pip{display:inline-block;width:12px;height:12px;border-radius:50%;border:1px solid var(--border);background:var(--panel2)}.teacher-toolbar{display:flex;align-items:center;gap:.75rem;padding:.5rem 1rem;border-bottom:1px solid var(--border)}.teacher-student{color:var(--muted);font-size:.85rem}.teacher-editor{flex:1;overflow:auto;min-height:0}.teacher-lesson{max-width:760px;padding:1rem 2rem 2rem;line-height:1.6}.playback{border-bottom:1px solid var(--border);background:var(--panel);padding:.6rem 1rem .8rem;position:relative}.pb-stats{display:flex;align-items:center;gap:1.5rem;margin-bottom:.6rem}.pb-stats .pb-time{margin-left:auto}.pb-stat{display:flex;flex-direction:column}.pb-stat-val{font-weight:700;font-size:1.05rem}.pb-stat-label{color:var(--muted);font-size:.7rem;text-transform:uppercase;letter-spacing:.04em}.pb-stat.over .pb-stat-val,.pb-stat.over .pb-stat-label{color:var(--bad)}.pb-graph{position:relative;height:70px;background:var(--panel2);border-radius:4px;padding:4px 0 0}.pb-silhouette{display:block;width:100%;height:100%}.pb-silhouette path{fill:var(--accent);opacity:.8}.pb-markers{position:absolute;left:0;right:0;bottom:0;height:10px;isolation:isolate}.pb-marker{position:absolute;bottom:0;width:5px;height:16px;transform:translate(-2px);box-sizing:border-box;border:1px solid rgba(0,0,0,.75);border-bottom:none;border-radius:2px 2px 0 0}.pb-marker.clickable{cursor:pointer}.pb-marker.clickable:after{content:"";position:absolute;left:-4px;right:-4px;top:-6px;bottom:-2px}.pb-marker.clickable:hover{box-shadow:0 0 0 1px var(--fg)}.clip-pop{position:absolute;z-index:20;width:min(520px,90%);background:var(--panel2);border:1px solid var(--border);border-radius:6px;box-shadow:0 8px 24px #00000073;padding:.5rem .6rem .6rem}.clip-pop-head{display:flex;align-items:baseline;gap:.5rem}.clip-pop-title{flex:1;font-size:.8rem;font-weight:700}.clip-pop-close{background:none;border:none;color:var(--muted);cursor:pointer;font-size:.8rem;padding:0 .2rem}.clip-pop-when{color:var(--muted);font-size:.72rem;margin-bottom:.35rem;display:flex;gap:.5rem}.clip-pop-who{color:var(--fg);font-weight:600}.clip-pop-text{margin:0;max-height:240px;overflow:auto;white-space:pre-wrap;word-break:break-word;font-family:ui-monospace,monospace;font-size:.75rem;line-height:1.45;background:var(--panel);border:1px solid var(--border);border-radius:4px;padding:.4rem .5rem}.pb-marker.clip-tall{height:26px}.pb-marker.clip-taller{height:36px}.pb-marker.clip-tallest{height:48px;width:6px}.pb-marker.m-blur{height:20px}.pb-marker.m-focus{height:16px}.pb-marker.m-fs-leave{height:44px;width:6px}.pb-marker.m-fs-start,.pb-marker.m-fs-resume{height:22px}.pb-cluster{position:absolute;bottom:0;height:66px;z-index:0}.pb-zoom{position:absolute;z-index:20;background:var(--panel2);border:1px solid var(--border);border-radius:6px;box-shadow:0 8px 24px #00000073;padding:.4rem .6rem .5rem;pointer-events:auto}.pb-zoom-strip{position:relative;height:56px;background:var(--panel);border:1px solid var(--border);border-radius:4px;isolation:isolate}.pb-zoom-strip .pb-marker{bottom:2px}.pb-zoom-head{color:var(--muted);font-size:.72rem;margin:.35rem 0 .25rem}.pb-zoom-list{margin:0;padding:0 0 0 1.1rem;font-size:.75rem;line-height:1.5;max-width:360px}.pb-zoom-list li{display:flex;align-items:center;gap:.4rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.pb-zoom-list .pb-swatch{flex:none}.pb-zoom-when{color:var(--muted);font-family:ui-monospace,monospace;font-size:.7rem}.pb-zoom-more{color:var(--muted);font-style:italic}.m-paste,.pb-swatch.m-paste{background:#f48771}.m-cut,.pb-swatch.m-cut{background:#ce9178}.m-copy,.pb-swatch.m-copy{background:#dcdcaa}.m-blur,.pb-swatch.m-blur{background:#c586c0}.m-focus,.pb-swatch.m-focus{background:#4ec9b0}.m-fs-start,.pb-swatch.m-fs-start{background:#3794ff}.m-fs-leave,.pb-swatch.m-fs-leave{background:#e51400}.m-fs-resume,.pb-swatch.m-fs-resume{background:#89d185}.pb-scrub{display:flex;align-items:center;margin-top:.3rem;position:relative}.pb-range{flex:1;width:100%;margin:0}.pb-dashes{position:absolute;top:0;right:0;bottom:0;left:0;pointer-events:none}.pb-dash{position:absolute;top:50%;transform:translateY(-50%);height:3px;border-radius:2px;background:#f14c4c}.pb-dash.away{background:#ff4fd8}.pb-time{color:var(--muted);font-size:.8rem;white-space:nowrap}.pb-legend{display:flex;gap:1rem;margin-top:.5rem;flex-wrap:wrap}.pb-leg{display:flex;align-items:center;gap:.3rem;font-size:.75rem;color:var(--muted)}.pb-swatch{width:10px;height:10px;border-radius:2px;display:inline-block}.roster{border-left:1px solid var(--border);background:var(--panel);display:flex;flex-direction:column;min-height:0}.roster-head{display:flex;align-items:center;justify-content:space-between;padding:.6rem 1rem;border-bottom:1px solid var(--border);font-weight:700;font-size:.8rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted)}.roster-refresh{background:var(--panel2);color:var(--fg);padding:.15rem .45rem}.roster-exams{background:var(--panel2);color:var(--fg);padding:.15rem .5rem;font-size:.75rem;text-transform:none;letter-spacing:0}.exam-win .instr-body{font-size:.85rem}.exam-hint{margin:0 0 .6rem;color:var(--muted);font-size:.82rem}.exam-grid{border-collapse:collapse;width:100%}.exam-grid th,.exam-grid td{padding:.25rem .4rem;border-bottom:1px solid var(--border);text-align:center}.exam-grid thead th{font-size:.75rem;color:var(--muted);font-weight:700;vertical-align:bottom}.exam-grid th:first-child{text-align:left}.exam-grid .exam-none{font-style:italic}.exam-group th,.exam-group td{background:var(--panel2);font-weight:700;font-size:.78rem}.exam-all{width:1rem;height:1rem;min-width:0;padding:0;border-radius:50%;border:2px solid var(--accent);background:transparent;cursor:pointer}.exam-all:hover{background:var(--accent)}.exam-name{background:none;border:none;padding:0;color:var(--accent-ink);cursor:pointer;text-align:left;font-weight:600}.exam-name:hover{text-decoration:underline}.exam-radio{accent-color:var(--accent);width:1rem;height:1rem;cursor:pointer}.roster-list{overflow:auto;flex:1}.roster-row{display:flex;flex-direction:column;align-items:flex-start;gap:.1rem;width:100%;text-align:left;background:none;color:var(--fg);border:none;border-left:2px solid transparent;border-radius:0;padding:.5rem 1rem;cursor:pointer}.roster-row:hover{background:var(--panel2)}.roster-row.active{background:var(--panel2);border-left-color:var(--accent)}.roster-name{font-size:.88rem;font-weight:600}.roster-email{font-size:.72rem;color:var(--muted)}.roster-head-btns{display:flex;gap:.3rem}.roster-group-head{display:flex;align-items:center;gap:.4rem;padding:.45rem .75rem;background:var(--panel2);border-top:1px solid var(--border);border-bottom:1px solid var(--border);font-size:.78rem;font-weight:700;cursor:pointer;-webkit-user-select:none;user-select:none}.roster-chev{color:var(--muted);width:.9em}.roster-group-name{flex:1}.roster-group-count{color:var(--muted);font-weight:400;font-size:.72rem}.roster-group-del{background:transparent;color:var(--muted);padding:0 .3rem;font-size:.75rem}.roster-group-del:hover:not(:disabled){color:var(--bad)}.roster-item{display:flex;align-items:center}.roster-item .roster-row{flex:1;min-width:0}.roster-move{background:var(--bg);color:var(--muted);border:1px solid var(--border);border-radius:4px;font-size:.7rem;max-width:5.5rem;margin-right:.5rem;padding:.15rem .2rem}.roster-wheel{flex:0 0 auto;margin-right:.4rem}.roster-exit{flex:0 0 auto;margin-right:.35rem;font-size:.66rem;font-weight:700;text-transform:uppercase;letter-spacing:.02em;padding:.05rem .35rem;border-radius:999px;border:1px solid transparent;color:var(--muted);cursor:default;white-space:nowrap}.roster-exit.star{color:var(--accent);border-color:var(--accent)}.roster-exit.circle{color:var(--ok);border-color:var(--ok)}.coding-wrap{display:flex;flex-direction:column;padding:1rem 1.25rem 2rem}.coding-block{flex:0 0 auto;display:flex;flex-direction:column;height:72vh;min-height:220px;border:1px solid var(--border);border-radius:8px;overflow:hidden;position:relative}.coding-wrap.fill-height{height:100%;min-height:0;padding-bottom:1rem}.coding-block.cb-fill{flex:1 1 auto;height:auto}.coding-block.cb-fill .cb-hdrag,.coding-block.cb-norun .cb-run,.coding-block.cb-norun .main-select,.coding-block.cb-norun .cb-stop,.coding-block.cb-norun .cb-clear,.coding-block.cb-norun .console-pane,.coding-block.cb-norun .cb-drag-col,.coding-block.cb-norun .cb-drag-row{display:none}.coding-block.cb-norun .coding{grid-template-columns:1fr;grid-template-rows:1fr}.test-bubbles{display:inline-flex;align-items:center;gap:.3rem}.test-bubbles:empty{display:none}.test-bubble{width:1.35rem;height:1.35rem;padding:0;border-radius:50%;border:1px solid var(--border);background:var(--panel2);color:var(--muted);font-size:.68rem;font-weight:700;line-height:1;cursor:pointer}.test-bubble.pending{animation:test-bubble-pulse 1.1s ease-in-out infinite}.test-bubble.stale{animation:none}@keyframes test-bubble-pulse{0%,to{opacity:1}50%{opacity:.45}}@media(prefers-reduced-motion:reduce){.test-bubble.pending{animation:none;opacity:.6}}.test-bubble.pass{background:color-mix(in srgb,var(--ok) 25%,var(--panel2));border-color:var(--ok);color:var(--ok-ink)}.test-bubble.fail{background:color-mix(in srgb,var(--bad) 22%,var(--panel2));border-color:var(--bad);color:var(--bad-ink)}.test-pop{position:absolute;z-index:30;width:270px;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.55rem .7rem;box-shadow:0 6px 18px #00000073;font-size:.8rem}.test-pop-name{font-weight:600;margin-bottom:.25rem}.test-pop-state.ok{color:var(--ok)}.test-pop-state.bad{color:var(--bad)}.test-pop-msg{margin-top:.3rem;color:var(--muted);white-space:pre-wrap}.coding{flex:1;display:grid;grid-template-columns:1fr 6px 1fr;min-height:0}.cb-hdrag{flex:0 0 6px;cursor:ns-resize;background:var(--border);transition:background .12s}.cb-hdrag:hover,.cb-hdrag.dragging{background:var(--accent)}body.row-resizing{cursor:ns-resize;-webkit-user-select:none;user-select:none}.file-tabs{display:flex;align-items:center;gap:2px;padding:.25rem .5rem 0;background:var(--panel);border-bottom:1px solid var(--border);overflow-x:auto}.file-tabs:empty{display:none}.file-tab{background:var(--panel2);color:var(--muted);border:1px solid var(--border);border-bottom:none;border-radius:6px 6px 0 0;padding:.3rem .7rem;font-size:.78rem;font-family:ui-monospace,monospace;font-weight:500;white-space:nowrap}.file-tab.active{background:var(--bg);color:var(--fg);border-color:var(--accent)}.file-tab-add{font-family:system-ui,sans-serif;font-weight:700;padding:.3rem .55rem}.check-btn{background:transparent;color:var(--ok);border:1px solid var(--ok)}.check-btn:hover:not(:disabled){background:color-mix(in srgb,var(--ok) 12%,transparent)}.reset-btn{background:transparent;color:var(--muted);border:1px solid var(--border)}.reset-btn:hover:not(:disabled){color:var(--bad);border-color:var(--bad)}.main-select{background:var(--bg);color:var(--fg);border:1px solid #3c3c3c;border-radius:4px;padding:.3rem .4rem;font-size:.8rem;font-family:ui-monospace,monospace;max-width:12rem}.questions{margin-top:.75rem;border:1px solid var(--border);border-radius:8px;background:var(--panel);padding:.75rem 1rem 1rem}.questions h3{margin:0 0 .2rem;font-size:.95rem}.q-hint{color:var(--muted);font-size:.78rem;margin:0 0 .6rem}.q-status{font-size:.78rem;font-weight:400;color:var(--muted)}.q-status.ok{color:var(--ok)}.q-row{display:flex;align-items:center;gap:.75rem;margin:.35rem 0}.q-label{flex:0 0 40%;min-width:0;font-size:.82rem;color:var(--fg)}.q-input{flex:1;padding:.4rem .6rem;background:var(--bg);color:var(--fg);border:1px solid #3c3c3c;border-radius:4px;font-size:.85rem}.q-row-essay{align-items:stretch;flex-direction:column;gap:.35rem}.q-input-essay{width:100%;resize:vertical;line-height:1.45;font-family:inherit}.q-row.ok .q-input{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 8%,var(--bg))}.q-row.bad .q-input{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 8%,var(--bg))}.q-row.ok .q-label:after{content:" ✓";color:var(--ok)}.q-row.bad .q-label:after{content:" ✗";color:var(--bad)}.q-status.bad{color:var(--bad)}.q-bar{margin-top:.75rem}.ov-progress{display:flex;align-items:flex-start;gap:1.25rem;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:1rem 1.25rem;margin-bottom:1.25rem}.ov-progress.complete{border-color:var(--ok)}.wheel{width:84px;height:84px;flex:0 0 auto}.wheel-bg{fill:none;stroke:var(--panel2);stroke-width:7}.wheel-fg{fill:none;stroke:var(--accent);stroke-width:7;stroke-linecap:round;transition:stroke-dashoffset .4s ease}.ov-progress.complete .wheel-fg.lap-0{stroke:var(--ok)}.wheel-fg.lap-1{stroke:var(--accent)}.wheel-fg.lap-2{stroke:var(--hue-purple)}.wheel-text{fill:var(--fg);font-size:15px;font-weight:700;text-anchor:middle}.wheel-spin{animation:wheel-spin 4s linear infinite,tag-rainbow 6s linear infinite}.wheel-spin .spin-seg{fill:none;stroke:var(--tag-miniproject);stroke-width:7;stroke-linecap:round}.wheel-spin .spin-seg:nth-child(2){filter:hue-rotate(60deg)}.wheel-spin .spin-seg:nth-child(3){filter:hue-rotate(120deg)}.wheel-spin .spin-seg:nth-child(4){filter:hue-rotate(180deg)}.wheel-spin .spin-seg:nth-child(5){filter:hue-rotate(240deg)}.wheel-spin .spin-seg:nth-child(6){filter:hue-rotate(300deg)}@keyframes wheel-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.wheel-spin{animation:none}}.mini-wheel{display:inline-flex;flex:0 0 auto}.mini-wheel .wheel{width:30px;height:30px}.mini-wheel.complete .wheel-fg.lap-0{stroke:var(--ok)}.ov-reqs{flex:1;min-width:0}.ov-reqs-head{font-weight:700;font-size:.9rem;margin-bottom:.4rem}.ov-group{margin:.4rem 0 .6rem}.ov-group-label{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:.2rem}.ov-subgroup-label{font-size:.66rem;font-weight:600;color:var(--muted);opacity:.85;margin:.35rem 0 .1rem .3rem}.ov-req{display:flex;align-items:center;gap:.5rem;padding:.2rem .3rem;border-radius:4px;color:var(--fg);text-decoration:none;font-size:.86rem}.ov-req:hover{background:var(--panel2)}.ov-req.done{color:var(--muted)}.ov-req.part .ov-tick{color:var(--ink-ident)}.ov-req.done .ov-tick{color:var(--ok)}.ov-tick{color:var(--muted);font-weight:700;width:1rem;text-align:center}.ov-badge{margin-left:auto;font-size:.62rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;padding:.1rem .45rem;border-radius:999px;border:1px solid;white-space:nowrap}.ov-badge.path-textbook{color:var(--ink-textbook);background:color-mix(in srgb,var(--tag-textbook) 14%,transparent);border-color:currentColor}.ov-badge.path-homework{color:var(--ink-homework);background:color-mix(in srgb,var(--tag-homework) 14%,transparent);border-color:currentColor}.ov-badge.path-challenge{color:var(--ink-challenge);background:color-mix(in srgb,var(--tag-challenge) 14%,transparent);border-color:currentColor}.ov-badge.path-warmup{color:var(--ink-warmup);background:color-mix(in srgb,var(--tag-warmup) 14%,transparent);border-color:currentColor}.ov-badge.path-explore{color:var(--ink-explore);background:color-mix(in srgb,var(--tag-explore) 14%,transparent);border-color:currentColor}.ov-badge.path-practice{color:var(--ink-practice);background:color-mix(in srgb,var(--tag-practice) 14%,transparent);border-color:currentColor}.ov-badge.path-debug{color:var(--ink-debug);background:color-mix(in srgb,var(--tag-debug) 14%,transparent);border-color:currentColor}.ov-badge.opt-challenge{color:var(--ink-optional);background:color-mix(in srgb,var(--tag-optional) 14%,transparent);border-color:currentColor}.ov-pts{margin-left:auto;font-size:.68rem;font-weight:600;color:var(--muted);white-space:nowrap;padding:.1rem .4rem;border-radius:999px;background:var(--panel2)}.ov-badge~.ov-pts{margin-left:.4rem}.ov-pts.full{color:var(--ok);background:transparent;border:1px solid var(--ok)}.engaged-chip{position:fixed;right:.9rem;bottom:.9rem;z-index:40;font-size:.78rem;font-weight:600;color:var(--fg);background:var(--panel);border:1px solid var(--border);border-radius:999px;padding:.3rem .7rem;box-shadow:0 2px 8px #00000059;pointer-events:auto;-webkit-user-select:none;user-select:none}.engaged-chip.paused{color:var(--muted);border-style:dashed}.engaged-chip.done{color:var(--ok);border-color:var(--ok)}.ov-group.optional .ov-req,.ov-group.optional .ov-group-label{opacity:.75}.ov-grade{margin-top:.9rem;padding:.7rem .9rem;border:1px solid var(--border);border-radius:8px;background:var(--panel)}.ov-grade-head{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:.3rem}.ov-grade-none{color:var(--muted);font-size:.85rem}.ov-grade-line{display:flex;gap:1rem;margin-bottom:.5rem}.ov-grade-part{font-weight:700}.g-yes{color:var(--ok)}.g-partial{color:var(--warn)}.g-no{color:var(--bad)}.g-none{color:var(--muted)}.ov-regrade{font-size:.8rem}.ov-grading{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.8rem 1rem;margin-bottom:1rem}.ov-grading-head{display:flex;align-items:center;justify-content:space-between;gap:1rem}.ov-grading-head h3{margin:0 0 .5rem;font-size:.95rem}.gr-table{width:100%;border-collapse:collapse;font-size:.85rem}.gr-table th{text-align:left;font-size:.68rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:700;padding:.3rem .5rem;border-bottom:1px solid var(--border)}.gr-table td{padding:.3rem .5rem;border-bottom:1px solid var(--border);vertical-align:middle}.gr-class-row td{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);background:var(--panel2)}.gr-name{white-space:nowrap}.gr-regrade{margin-left:.5rem;font-size:.72rem;color:var(--warn)}.gr-detail{color:var(--muted);font-size:.78rem}.gr-sel{background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.15rem .3rem}.gr-status{font-size:.75rem;color:var(--muted)}.gr-status.ok{color:var(--ok)}.gr-status.err{color:var(--bad)}.gr-mark{font-weight:700}.gr-hint{color:var(--muted);font-size:.85rem;max-width:46rem}.tb-link{display:inline-flex;align-items:center;gap:.6rem;background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:.8rem 1.1rem;color:var(--fg);text-decoration:none;font-weight:600;margin:.5rem 0 1rem;transition:border-color .12s}.tb-link:hover{border-color:var(--accent)}.tb-arrow{color:var(--muted)}.tb-bar{display:flex;align-items:center;gap:.75rem}.tb-status{color:var(--ok);font-size:.85rem}.pb-files{display:flex;align-items:center;gap:.35rem;margin-top:.5rem;flex-wrap:wrap}.pb-ftab{background:var(--panel2);color:var(--muted);border:1px solid var(--border);border-radius:5px;padding:.25rem .6rem;font-size:.76rem;font-family:ui-monospace,monospace;font-weight:500}.pb-ftab.active{background:var(--bg);color:var(--fg);border-color:var(--accent)}.pb-follow{font-family:system-ui,sans-serif}.pb-follow.active{color:var(--ok);border-color:var(--ok)}.editor-pane,.console-pane{display:flex;flex-direction:column;min-height:0;min-width:0}.console-pane{border-left:1px solid var(--border)}.toolbar{display:flex;align-items:center;gap:.5rem;padding:.5rem;background:var(--panel);border-bottom:1px solid var(--border)}.run-status{color:var(--muted);font-size:.8rem;margin-left:auto}.cb-editor{flex:1;min-height:0;overflow:auto}.cm-editor{height:100%}.cb-out{flex:1;margin:0;padding:.75rem;overflow:auto;white-space:pre-wrap;word-break:break-word;tab-size:4;font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.85rem}.cb-out .sys{color:var(--accent)}:root{--ansi-black: #858585;--ansi-red: #f14c4c;--ansi-green: #23d18b;--ansi-yellow: #f5f543;--ansi-blue: #3b8eea;--ansi-magenta: #d670d6;--ansi-cyan: #29b8db;--ansi-white: #e5e5e5}:root[data-theme=light],:root[data-theme=beige]{--ansi-black: #5d5d5d;--ansi-red: #af2828;--ansi-green: #0e6c0e;--ansi-yellow: #7e5400;--ansi-blue: #0451a5;--ansi-magenta: #a3159d;--ansi-cyan: #056582;--ansi-white: #555555}.ansi-black{color:var(--ansi-black)}.ansi-red{color:var(--ansi-red)}.ansi-green{color:var(--ansi-green)}.ansi-yellow{color:var(--ansi-yellow)}.ansi-blue{color:var(--ansi-blue)}.ansi-magenta{color:var(--ansi-magenta)}.ansi-cyan{color:var(--ansi-cyan)}.ansi-white{color:var(--ansi-white)}.ansi-bold{font-weight:700}.ansi-dim{opacity:.65}.ansi-underline{text-decoration:underline}.cb-stdin-form{display:flex;gap:.4rem;padding:.5rem;background:var(--panel);border-top:1px solid var(--border)}.cb-stdin{flex:1;padding:.4rem .6rem;background:var(--bg);color:var(--fg);border:1px solid #3c3c3c;border-radius:4px;font-family:ui-monospace,monospace}.console-pane .cb-out[tabindex]:focus{outline:2px solid var(--accent, #4a9eff);outline-offset:-2px}button{padding:.35rem .7rem;background:var(--btn);color:var(--btn-fg);border:none;border-radius:4px;font-weight:600;cursor:pointer}button:hover:not(:disabled){filter:brightness(1.15)}button:disabled{opacity:.4;cursor:not-allowed}.cb-quiet,#signout{background:var(--btn-quiet);color:var(--fg)}.modal-overlay{position:fixed;top:0;right:0;bottom:0;left:0;background:#0009;display:flex;align-items:center;justify-content:center;z-index:100}.modal-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:1.5rem 1.75rem;max-width:22rem;width:calc(100% - 2rem);display:flex;flex-direction:column;gap:.75rem}.modal-title{margin:0;font-size:1.15rem}.modal-sub{margin:0;color:var(--muted);font-size:.85rem}.modal-confirm{max-width:28rem}.modal-desc{display:flex;flex-direction:column;gap:.6rem;font-size:.9rem;line-height:1.45}.modal-desc p{margin:0}.modal-actions{display:flex;justify-content:flex-end;gap:.5rem;margin-top:.25rem}.class-pick-list{display:flex;flex-direction:column;gap:.5rem}.class-pick-btn{padding:.6rem .8rem;font-size:.95rem;text-align:left}.modal-skip{background:transparent;color:var(--muted);border:none;font-size:.78rem;font-weight:400;align-self:center;text-decoration:underline}.classroom{padding:1.25rem 1.5rem;max-width:72rem;margin:0 auto}.classroom-head{display:flex;align-items:center;justify-content:flex-start;gap:.6rem}.classroom-head .classroom-title{margin-right:auto}.assign-panel{margin-top:1rem}.assign-bar{display:flex;align-items:center;gap:.6rem;margin-bottom:.8rem}.assign-bar-label{color:var(--muted);font-size:.85rem}.assign-class-sel{background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.25rem .5rem}.assign-course-note{color:var(--muted);font-size:.8rem}.assign-course-note.warn{color:var(--warn)}.assign-table-box{overflow-x:auto}.assign-table{width:100%;border-collapse:collapse;font-size:.85rem}.assign-table th{text-align:left;font-size:.68rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:700;padding:.35rem .5rem;border-bottom:1px solid var(--border);white-space:nowrap}.assign-table td{padding:.35rem .5rem;border-bottom:1px solid var(--border);vertical-align:middle}.assign-row:hover td{background:var(--panel2)}.assign-name{white-space:nowrap}.assign-link{margin-left:.4rem;text-decoration:none}.assign-id{width:7rem;background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.2rem .4rem;font-family:ui-monospace,monospace}.assign-date{background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.2rem .3rem}.assign-btn{font-size:.75rem;padding:.2rem .55rem;margin-right:.3rem;white-space:nowrap}.assign-pub{white-space:nowrap}.assign-pub-mark{color:var(--muted);margin-right:.4rem}.assign-pub-mark.ok{color:var(--ok)}.assign-status{font-size:.75rem;color:var(--muted);white-space:nowrap}.assign-status.ok{color:var(--ok)}.assign-status.err{color:var(--bad);white-space:normal}.assign-body{margin-top:.4rem}.assign-sec-list{display:flex;flex-direction:column;gap:.35rem}.assign-sec-row{display:flex;align-items:center;gap:.6rem;text-align:left;padding:.55rem .7rem;background:var(--panel2);border:1px solid var(--border);border-radius:6px;cursor:pointer}.assign-sec-row:hover{border-color:var(--accent)}.assign-sec-name{font-weight:600;flex:1}.assign-sec-tags{display:flex;gap:.35rem}.assign-tag{font-size:.68rem;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:.05rem .5rem;white-space:nowrap}.assign-tag.ok{color:var(--ok);border-color:var(--ok)}.assign-sec-go{color:var(--muted);font-size:1.1rem}.assign-detail{display:flex;flex-direction:column;gap:.8rem}.assign-detail-head{display:flex;align-items:center;gap:.7rem}.assign-back{font-size:.8rem}.assign-detail-title{font-weight:700;font-size:1.05rem}.assign-detail-class{color:var(--muted);font-size:.85rem}.assign-card{border:1px solid var(--border);border-radius:8px;padding:.7rem .9rem;background:var(--panel2)}.assign-card h4{margin:0 0 .5rem}.assign-card-note{color:var(--muted);font-size:.78rem;margin:.2rem 0 .5rem}.assign-card-note.warn{color:var(--warn)}.push-list{display:flex;flex-direction:column;gap:.3rem;font-size:.85rem}.push-summary{color:var(--muted);font-size:.78rem;margin-bottom:.2rem}.push-row{display:flex;align-items:baseline;gap:.6rem}.push-row .roster-name{min-width:11rem}.push-badge{font-size:.68rem;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:.05rem .5rem;white-space:nowrap}.push-badge.pushed{color:var(--ok);border-color:var(--ok)}.push-badge.stood-down{color:var(--warn);border-color:var(--warn);font-weight:600}.push-words{color:var(--muted);font-size:.78rem}.assign-card-row{display:flex;align-items:center;gap:.5rem;flex-wrap:wrap;margin-bottom:.45rem}.assign-card-label{color:var(--muted);font-size:.8rem;min-width:5.5rem}.assign-btn.primary{background:var(--btn);color:var(--btn-fg);border-color:var(--btn)}.class-check{flex-direction:row;align-items:center;gap:.45rem}.class-check input{width:auto;flex:none}.classroom-title{margin:0}.classroom-sub{color:var(--muted);font-size:.85rem;max-width:46rem}.classroom-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(20rem,1fr));gap:1rem;margin-top:1rem}.class-card{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.9rem 1rem;display:flex;flex-direction:column;gap:.7rem}.class-title-row{display:flex;align-items:center;gap:.5rem}.class-name{flex:1;min-width:0;background:transparent;color:var(--fg);border:1px solid transparent;border-radius:4px;font-size:1.02rem;font-weight:700;padding:.2rem .35rem}.class-name:hover,.class-name:focus{border-color:var(--border);background:var(--bg);outline:none}.class-count{color:var(--muted);font-size:.75rem;white-space:nowrap}.class-del{background:transparent;color:var(--muted);padding:0 .3rem}.class-del:hover:not(:disabled){color:var(--bad)}.class-section h4{margin:0 0 .4rem;font-size:.72rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted)}.class-field{display:flex;align-items:center;gap:.6rem;margin:.25rem 0;font-size:.82rem}.class-field>span:first-child{width:8.5rem;color:var(--muted)}.class-field input,.class-field select{flex:1;min-width:0;background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.3rem .4rem;font-size:.8rem;color-scheme:dark}.class-hint{color:var(--muted);font-size:.72rem}.class-member{display:flex;align-items:center;justify-content:space-between;padding:.2rem .1rem;font-size:.85rem}.class-member-out{background:transparent;color:var(--muted);padding:0 .3rem;font-size:.7rem}.class-member-out:hover:not(:disabled){color:var(--bad)}.class-foot{min-height:1rem}.class-saved{font-size:.72rem;color:var(--muted)}.class-saved.ok{color:var(--ok)}.class-saved.err{color:var(--bad)}#takeover{position:fixed;top:0;right:0;bottom:0;left:0;z-index:1000;display:flex;align-items:center;justify-content:center;background:#2d2d30f5}.takeover-card{text-align:center;max-width:26rem;padding:2rem 2.5rem;background:var(--panel);border:1px solid var(--border);border-radius:10px;color:var(--muted)}.takeover-card h2{margin:0 0 .5rem;color:var(--fg)}.takeover-card p{margin:0 0 1.25rem;font-size:.9rem}.takeover-card button{font-size:1rem;padding:.6rem 1.4rem;border-radius:8px}#student-mode{font-size:.78rem;padding:.25rem .6rem;border-radius:999px;background:var(--panel2);color:var(--muted);border:1px solid var(--border)}#student-mode.on{background:#4ec9b0;color:#1e1e1e;border-color:#4ec9b0;font-weight:700}.role-demo{background:#4ec9b0;color:#1e1e1e}.hard-reset{font-size:.78rem;padding:.25rem .6rem;border-radius:999px;background:var(--panel2);color:var(--bad);border:1px solid var(--bad)}.hard-reset:hover:not(:disabled){background:#f48771;color:#1e1e1e}.hard-reset:disabled{opacity:.6;cursor:default}.m-widget,.pb-swatch.m-widget{background:#cba6f7}.m-teach,.pb-swatch.m-teach{background:#f9e2af}.pb-marker.m-teach{height:18px}.pb-itemsep{position:absolute;top:-60px;bottom:0;width:3px;transform:translate(-1px);background:#fff;opacity:.75;border-radius:1px}.pb-items{position:relative;height:8px;margin-top:2px;background:var(--panel2);border-radius:3px;overflow:hidden}.pb-item-band{position:absolute;top:0;bottom:0;opacity:.85}.pb-item-legend{display:flex;gap:1rem;margin-top:.35rem;flex-wrap:wrap}.pb-item-key{display:flex;align-items:center;gap:.3rem;font-size:.75rem;color:var(--muted)}.pb-file-select{background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:5px;padding:.25rem .5rem;font-size:.76rem;font-family:ui-monospace,monospace;max-width:32rem}.part-head{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.6rem .9rem;margin:1.1rem 0 .6rem}.part-head h3{margin:0 0 .35rem;font-size:1.05rem}.part-head .part-body p{margin:.35rem 0}.coding.console-left .console-pane{border-left:none;border-right:1px solid var(--border)}.coding.console-below{grid-template-columns:1fr;grid-template-rows:60% 6px 1fr}.coding.console-below .console-pane{border-left:none;border-top:1px solid var(--border)}.console-pane.cb-swappable{position:relative}.cb-swap{position:absolute;top:.3rem;left:.3rem;z-index:1;width:1.5rem;height:1.5rem;padding:0;line-height:1;font-size:.95rem;background:var(--btn-quiet);color:var(--muted);border:1px solid var(--border);border-radius:4px;cursor:pointer}.cb-swap:hover{color:var(--fg);border-color:var(--accent)}.console-pane.cb-swappable .cb-out{text-indent:1.5rem}.drag-row{cursor:ns-resize;background:var(--border);height:6px;transition:background .12s}.drag-row:hover,.drag-row.dragging{background:var(--accent)}.parts-columns{display:grid;gap:.8rem;align-items:start;min-width:0}.parts-columns .part-col{min-width:0;display:flex;flex-direction:column}.parts-columns .part-head{margin-top:.6rem}.parts-columns .coding-block .toolbar{flex-wrap:wrap;row-gap:.3rem}.parts-grid{row-gap:1.6rem}.instr-win{position:fixed;z-index:90;display:flex;flex-direction:column;background:var(--panel);border:1px solid var(--border);border-radius:10px;box-shadow:inset 0 1px #ffffff17,inset 0 -1px #00000047,0 0 0 1px #00000047,0 2px 5px #0000004d,0 18px 44px -10px #0000008c;resize:both;overflow:hidden;min-width:220px;min-height:140px;transition:box-shadow .12s ease}.instr-win.dragging{box-shadow:inset 0 1px #ffffff1f,inset 0 -1px #00000047,0 0 0 1px #00000059,0 4px 10px #00000059,0 28px 60px -8px #000000a6}.instr-win:after{content:"";position:absolute;right:2px;bottom:2px;width:14px;height:14px;pointer-events:none;background:repeating-linear-gradient(-45deg,transparent 0 2px,var(--muted) 2px 3px,transparent 3px 5px);opacity:.75;border-bottom-right-radius:8px}.instr-bar{display:flex;align-items:center;justify-content:space-between;gap:.5rem;padding:.4rem .65rem;background:linear-gradient(#ffffff0f,#0000000f),var(--panel2);border-bottom:1px solid var(--border);box-shadow:inset 0 1px #ffffff12,0 1px #ffffff0a;cursor:move;-webkit-user-select:none;user-select:none;touch-action:none}.instr-title{font-weight:600;font-size:.85rem;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.instr-tools{display:inline-flex;align-items:center;gap:.35rem;margin-left:auto;cursor:default}.instr-tools:empty{display:none}.instr-close{background:transparent;color:var(--muted);padding:0 .3rem;border-radius:5px}.instr-close:hover{color:var(--fg);background:#7f7f7f2e}.instr-win .instr-body{flex:1;overflow:auto;padding:.35rem .9rem .8rem;max-width:none;font-size:.88rem;line-height:1.45}.review-badge{font-size:.7rem;color:var(--muted);border:1px solid var(--border);border-radius:999px;padding:.1rem .5rem;white-space:nowrap}.style-goals{margin-top:.5rem;font-size:.8rem}.style-goals-title{color:var(--muted);font-weight:600}.style-goals ul{margin:.25rem 0 0;padding-left:1.3rem}.ai-btn{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;padding:0;font-size:.78rem;font-weight:700;letter-spacing:.03em;line-height:1;border-radius:6px}.ai-btn.on{background:var(--btn);color:var(--btn-fg);border:1px solid var(--btn)}.ai-btn.off{background:none;color:var(--muted);border:1px dashed var(--muted);cursor:not-allowed}.ai-btn.off:hover{filter:none}.ai-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ai-win{min-width:260px;min-height:240px}.ai-win .instr-body{position:relative;display:flex;flex-direction:column;overflow:hidden;padding:0}.ai-log{flex:1;min-height:0;overflow:auto;display:flex;flex-direction:column;gap:.5rem;padding:.65rem .75rem}.ai-msg{max-width:88%;padding:.4rem .65rem;border:1px solid var(--border);border-radius:8px;color:var(--fg);overflow-wrap:anywhere}.ai-student{align-self:flex-end;background:var(--btn-quiet);white-space:pre-wrap}.ai-student.pending{opacity:.7}.ai-sent{align-self:flex-end;max-width:88%;display:flex;flex-direction:column;align-items:flex-end;gap:.15rem}.ai-sent>.ai-msg{max-width:100%}.ai-removed{color:var(--muted);font-size:.7rem;line-height:1.2;text-align:right}.ai-tutor{align-self:flex-start;background:var(--bg)}.ai-reply>:first-child{margin-top:0}.ai-reply>:last-child{margin-bottom:0}.ai-reply p{margin:.4rem 0}.ai-reply :not(pre)>code{white-space:pre-wrap}.ai-reply pre{margin:.4rem 0;padding:.5rem .65rem;background:var(--code-bg);color:var(--code-fg);border:1px solid var(--border);border-radius:6px;overflow:auto;font-family:ui-monospace,monospace;font-size:.8rem;line-height:1.45}.ai-reply pre code{background:none;padding:0;border-radius:0;font-size:inherit;color:inherit;white-space:pre}.ai-thinking{display:flex;align-items:center;gap:.45rem;color:var(--muted)}.ai-spin{flex:none;width:.8rem;height:.8rem;box-sizing:border-box;border:2px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:ai-spin .8s linear infinite}@keyframes ai-spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.ai-spin{animation:none}}.ai-note{padding:.3rem .75rem;border-top:1px solid var(--border);color:var(--muted);font-size:.8rem}.ai-note.error{color:var(--bad)}.ai-form{display:flex;align-items:flex-end;gap:.4rem;padding:.5rem .6rem;background:var(--panel2);border-top:1px solid var(--border)}.ai-input{flex:1;min-width:0;padding:.4rem .55rem;background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;font:inherit;font-size:.85rem;line-height:1.4;resize:none}.ai-input:focus-visible{outline:2px solid var(--accent);outline-offset:-1px}.ai-usage{margin-top:-.25rem;padding:0 1.4rem .3rem .6rem;background:var(--panel2);color:var(--muted);font-size:.7rem;line-height:1.2;text-align:right;font-variant-numeric:tabular-nums}.ai-off{margin:0;padding:.6rem .75rem;background:var(--panel2);border-top:1px solid var(--border);color:var(--muted);font-size:.85rem}.ai-off.blocked{color:var(--fg)}.ai-about-btn{flex:none;width:16px;height:16px;padding:0;background:transparent;color:var(--muted);border:1px solid currentColor;border-radius:50%;font:italic 700 11px/14px Georgia,Times New Roman,serif;text-align:center;cursor:pointer}.ai-about-btn:hover:not(:disabled),.ai-about-btn[aria-expanded=true]{color:var(--fg);filter:none}.ai-about-btn:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ai-about{position:absolute;top:.4rem;left:.6rem;right:.6rem;z-index:3;max-height:calc(100% - .8rem);overflow:auto;background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.55rem .7rem;box-shadow:0 6px 18px #00000073;color:var(--fg);font-size:.8rem;line-height:1.4}.ai-about p{margin:0}.ai-about p+p{margin-top:.4rem}.ai-classes{display:inline-flex;align-items:center;gap:.25rem;min-width:0;max-width:11rem;margin-left:.4rem;padding:.05rem .45rem .05rem .55rem;background:transparent;color:var(--muted);border:1px solid var(--border);border-radius:999px;font-size:.75rem;font-weight:600;line-height:1.35;white-space:nowrap}.ai-classes:hover:not(:disabled),.ai-classes[aria-expanded=true]{color:var(--fg);filter:none}.ai-classes.on{color:var(--fg);border-color:var(--btn)}.ai-classes:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ai-classes-label{min-width:0;overflow:hidden;text-overflow:ellipsis}.ai-classes-caret{flex:none;font-size:.7rem}.ai-classes-menu{position:absolute;top:.3rem;right:.6rem;z-index:3;display:flex;flex-direction:column;gap:.15rem;min-width:9rem;max-height:calc(100% - .6rem);overflow:auto;padding:.35rem .3rem;background:var(--panel);border:1px solid var(--border);border-radius:8px;box-shadow:0 6px 18px #00000073}.ai-switch{display:flex;align-items:center;gap:.55rem;padding:.3rem .45rem;border-radius:5px;color:var(--fg);font-size:.8rem;font-weight:600;white-space:nowrap;cursor:pointer}.ai-switch:hover{background:var(--btn-quiet)}.ai-switch input{-webkit-appearance:none;appearance:none;position:relative;flex:none;width:28px;height:16px;margin:0;background:var(--btn-quiet);border:1px solid var(--border);border-radius:999px;cursor:pointer}.ai-switch input:before{content:"";position:absolute;top:2px;left:2px;width:10px;height:10px;border-radius:50%;background:var(--muted);transition:transform .12s ease}.ai-switch input:checked{background:var(--btn);border-color:var(--btn)}.ai-switch input:checked:before{background:var(--btn-fg);transform:translate(12px)}.ai-switch input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ai-switch input:disabled{opacity:.5;cursor:wait}@media(prefers-reduced-motion:reduce){.ai-switch input:before{transition:none}}.check-win{min-width:300px;min-height:260px}.check-body{padding:.6rem .9rem .9rem}.check-top{display:flex;align-items:center;justify-content:center;gap:1rem}.check-dial{width:190px;flex:0 0 auto}.check-dial svg{display:block;width:100%;height:auto;overflow:visible}.dial-bg{fill:none;stroke:var(--panel2);stroke-width:14;stroke-linecap:round}.dial-fg{fill:none;stroke:var(--bad);stroke-width:14;stroke-linecap:round;transition:stroke-dashoffset .9s cubic-bezier(.2,.8,.2,1),stroke .3s ease}.check-body[data-band=mid] .dial-fg{stroke:var(--dial-mid)}.check-body[data-band=full] .dial-fg{stroke:var(--ok)}.dial-needle{stroke:currentColor;stroke-width:3;stroke-linecap:round;transform-origin:100px 100px;transform:rotate(-90deg);transition:transform .9s cubic-bezier(.2,.8,.2,1)}.dial-hub{fill:var(--muted)}.dial-num{font-family:system-ui,sans-serif;font-size:30px;font-weight:700;fill:currentColor;text-anchor:middle}.check-headline{margin-top:.4rem;font-size:1.08rem;font-weight:700}.check-sub{margin-top:.15rem;color:var(--muted)}.check-tests{list-style:none;margin:.7rem 0 0;padding:0}.check-tests li{padding:.3rem 0;border-top:1px solid var(--border)}.check-tests .t-mark{display:inline-block;width:1.3rem;font-weight:700}.check-tests li.ok .t-mark{color:var(--ok)}.check-tests li.bad .t-mark{color:var(--bad)}.check-tests .t-msg{display:block;margin-left:1.3rem;color:var(--muted);font-size:.9em}.check-terminal{margin:.5rem 0 0;padding:.5rem .6rem;border:1px solid var(--border);border-radius:6px;background:var(--panel2);font-family:ui-monospace,SF Mono,Menlo,Consolas,monospace;font-size:.8rem;line-height:1.4;white-space:pre-wrap;word-break:break-word;tab-size:4;max-height:14rem;overflow:auto}.check-terminal:focus{outline:2px solid var(--accent);outline-offset:1px}.pair-banner{flex:0 0 auto;margin-bottom:.6rem;border:1px solid var(--accent);background:color-mix(in srgb,var(--accent) 10%,transparent);border-radius:6px;padding:.45rem .7rem;font-size:.82rem}.ov-concept{margin-top:.9rem;padding:.7rem .9rem;border:1px solid var(--border);border-radius:8px;background:var(--panel)}.ov-concept-intro{margin:.3rem 0 .7rem;font-size:.82rem;color:var(--muted)}.ov-concept-grid{display:grid;grid-template-columns:1fr 1fr;gap:.9rem;align-items:start}@media(max-width:640px){.ov-concept-grid{grid-template-columns:1fr}}.ov-concept-buckets{display:flex;flex-direction:column;gap:.7rem}.ov-bucket-label{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);margin-bottom:.3rem}.ov-drop{display:flex;flex-wrap:wrap;gap:.4rem;align-content:flex-start;min-height:3rem;padding:.5rem;border:1.5px dashed var(--border);border-radius:8px;background:var(--panel2);transition:border-color .12s,background .12s}.ov-bucket .ov-drop{min-height:3.4rem}.ov-drop.over{border-color:var(--accent);border-style:solid;background:color-mix(in srgb,var(--accent) 12%,var(--panel2))}.ov-chip{display:inline-block;padding:.3rem .6rem;border:1px solid var(--border);border-radius:999px;background:var(--panel);color:var(--fg);font-size:.82rem;font-weight:600;cursor:grab;-webkit-user-select:none;user-select:none;white-space:nowrap}.ov-chip:hover{border-color:var(--accent)}.ov-chip.dragging{opacity:.45;cursor:grabbing}.ov-concept-instruction{margin:.7rem 0 .1rem;font-size:.86rem;font-weight:600;color:var(--fg)}.ov-tri{margin-top:.9rem;padding:.7rem .9rem;border:1px solid var(--border);border-radius:8px;background:var(--panel)}.ov-tri-stage{max-width:420px;margin:.5rem auto .2rem}.ov-tri-label{font-size:.78rem;font-weight:700;line-height:1.25;color:var(--fg);text-align:center}.ov-tri-label.top{margin-bottom:.35rem}.ov-tri-bottom{display:flex;gap:.9rem;margin-top:.35rem}.ov-tri-bottom .ov-tri-label{flex:1 1 0}.ov-tri-label.left{text-align:left}.ov-tri-label.right{text-align:right}.ov-tri-svg{display:block;width:100%;height:auto;cursor:crosshair;touch-action:manipulation;border-radius:8px}.ov-tri-svg:focus{outline:none}.ov-tri-svg:focus-visible{outline:2px solid var(--accent);outline-offset:2px}.ov-tri-shape{fill:color-mix(in srgb,var(--accent) 10%,var(--panel2));stroke:var(--border);stroke-width:1.5}.ov-tri-median{stroke:var(--border);stroke-width:1;opacity:.5}.ov-tri-dot{fill:var(--accent);stroke:var(--panel);stroke-width:2.5}.ov-turnin{margin-top:.9rem;padding:.7rem .9rem;border:1px solid var(--border);border-radius:8px;background:var(--panel)}.ov-exit{margin-top:.9rem;padding:.7rem .9rem;border:1px solid var(--border);border-radius:8px;background:var(--panel);display:flex;gap:1rem;align-items:flex-start}.ov-exit-main{flex:1 1 auto;min-width:0}.ov-exit-history{flex:0 0 12.5rem;border-left:1px solid var(--border);padding-left:.9rem;align-self:stretch}.ov-exit-badge{font-size:.72rem;font-weight:700;letter-spacing:.02em;text-transform:uppercase;padding:.1rem .45rem;border-radius:999px;border:1px solid transparent}.ov-exit-badge.star{color:var(--accent-ink);border-color:var(--accent);background:color-mix(in srgb,var(--accent) 12%,transparent)}.ov-exit-badge.circle{color:var(--ok-ink);border-color:var(--ok);background:color-mix(in srgb,var(--ok) 12%,transparent)}.ov-exit-intro{margin:.2rem 0 .7rem;font-size:.82rem;color:var(--muted)}.ov-exit-q{margin:.6rem 0 .8rem}.ov-exit-stem{font-size:.88rem;font-weight:600;margin-bottom:.35rem}.ov-exit-qn{color:var(--muted);margin-right:.15rem}.ov-exit-opt{display:flex;align-items:baseline;gap:.45rem;padding:.28rem .4rem;border:1px solid transparent;border-radius:6px;font-size:.85rem;cursor:pointer}.ov-exit-opt:hover{background:var(--hover, rgba(127, 127, 127, .08))}.ov-exit-opt input{margin:0;flex:0 0 auto}.ov-exit-opt-txt{flex:1 1 auto}.ov-exit-opt.ok{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 12%,transparent)}.ov-exit-opt.bad{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 12%,transparent)}.ov-exit-fb{display:none;flex-basis:100%;font-size:.78rem;color:var(--muted);font-style:italic}.ov-exit-opt.show-fb .ov-exit-fb{display:block}.ov-exit.has-cols{flex-direction:column}.ov-exit.has-cols .ov-exit-main{width:100%}.ov-exit.has-cols .ov-exit-history{flex-basis:auto;border-left:none;border-top:1px solid var(--border);padding-left:0;padding-top:.7rem;width:100%}.ov-exit-cols-scroll{overflow-x:auto;margin:.2rem -.9rem .4rem;padding:0 .9rem;contain:inline-size}.ov-exit-cols{display:flex;gap:.2rem;align-items:stretch;width:100%;min-width:min-content;font-size:.85rem}.ov-exit-col{flex:1 1 0;display:flex;flex-direction:column;gap:.2rem;padding:.3rem .15rem;border:1px solid var(--border);border-radius:6px;background:var(--panel);opacity:.72}.ov-exit-col.picked{opacity:1;border-color:var(--accent);background:color-mix(in srgb,var(--accent) 8%,var(--panel))}.ov-exit-col-head{display:flex;align-items:center;gap:.3rem;font-weight:600;cursor:pointer;padding:0 .1rem .2rem;border-bottom:1px solid var(--border);white-space:nowrap}.ov-exit-col-head input{margin:0;flex:0 0 auto}.ov-exit-col-row{display:grid;grid-template-columns:1fr auto;align-items:center;gap:.15rem}.ov-exit-col code.ov-exit-cols-code{justify-self:start;padding:.1rem .15rem;font-size:.8em}.ov-exit-col-box{font:inherit;font-family:ui-monospace,monospace;font-size:.8em;width:3.4rem;min-width:0;box-sizing:border-box;padding:.12rem .15rem;border:1px solid var(--border);border-radius:4px;background:var(--bg);color:var(--fg);text-align:right;font-variant-numeric:tabular-nums}.ov-exit-col-box:disabled{opacity:.5;cursor:not-allowed}.ov-exit-col-box:focus{outline:2px solid var(--accent);outline-offset:0}.ov-exit-col-box.ok{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 14%,var(--bg))}.ov-exit-col-box.bad{border-color:var(--bad);background:color-mix(in srgb,var(--bad) 14%,var(--bg))}.ov-exit-bar{display:flex;align-items:center;gap:.7rem;margin-top:.6rem}.ov-exit-btn{font:inherit;font-size:.85rem;font-weight:600;padding:.35rem .9rem;border:1px solid var(--border);border-radius:6px;background:var(--btn);color:var(--btn-fg);cursor:pointer}.ov-exit-btn:hover{filter:brightness(1.08)}.ov-exit-status{font-size:.82rem;color:var(--muted)}.ov-exit-status.ok{color:var(--ok);font-weight:600}.ov-exit-status.bad,.ov-exit-status.warn{color:var(--bad)}.ov-exit-hist-head{font-size:.7rem;font-weight:700;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);margin-bottom:.4rem}.ov-exit-hist-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.25rem}.ov-exit-hist-row{display:grid;grid-template-columns:auto 1fr;grid-template-areas:"try score" "when when";gap:0 .5rem;font-size:.8rem;padding:.3rem .45rem;border:1px solid var(--border);border-radius:6px}.ov-exit-hist-row.perfect{border-color:var(--ok);background:color-mix(in srgb,var(--ok) 10%,transparent)}.ov-exit-hist-try{grid-area:try;font-weight:600}.ov-exit-hist-score{grid-area:score;text-align:right;font-variant-numeric:tabular-nums}.ov-exit-hist-when{grid-area:when;color:var(--muted);font-size:.72rem}@media(max-width:640px){.ov-exit{flex-direction:column}.ov-exit-main{width:100%}.ov-exit-history{flex-basis:auto;border-left:none;border-top:1px solid var(--border);padding-left:0;padding-top:.7rem;width:100%}}.ov-turnin-note{margin:.3rem 0 .5rem;font-size:.82rem;color:var(--muted)}.ov-reflect-q{display:block;margin:.55rem 0;font-size:.85rem}.ov-reflect-a{display:block;width:100%;margin-top:.3rem;background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:6px;padding:.4rem .55rem;font:inherit;font-size:.85rem;resize:vertical}.ov-turnin-row{display:flex;align-items:center;gap:.7rem;margin-top:.5rem}.ov-turnin-btn{font-weight:600}.ov-turnin-status{font-size:.8rem;color:var(--muted)}.ov-turnin-caps{margin:.55rem 0 0;font-size:.74rem;color:var(--muted)}.gr-turnin{font-size:.74rem;color:var(--muted)}.gr-reflection{font-size:.78rem;margin-top:.15rem}.gr-reflection summary{cursor:pointer;color:var(--muted)}.gr-reflection p{margin:.3rem 0;white-space:pre-wrap;max-width:34rem}.coop-invite{display:flex;align-items:center;gap:.6rem;flex-wrap:wrap}.coop-invite select{max-width:16rem}.coop-picker{display:inline-flex;align-items:center;gap:.7rem;flex-wrap:wrap}.coop-picker label{display:inline-flex;align-items:center;gap:.25rem;white-space:nowrap;cursor:pointer}.pairs-panel .assign-bar{margin-bottom:.6rem}.pairs-item-sel{background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:5px;padding:.25rem .5rem;font-size:.8rem;max-width:28rem}.pairs-make{background:var(--panel);border:1px solid var(--border);border-radius:8px;padding:.6rem .9rem .8rem;max-width:640px;margin-bottom:.75rem}.pairs-chips{display:flex;flex-wrap:wrap;gap:.4rem;margin:.4rem 0 .6rem}.pairs-chip{border:1px solid var(--border);border-radius:999px;background:var(--panel2);color:var(--fg);padding:.25rem .7rem;font-size:.8rem;cursor:pointer}.pairs-chip.on{border-color:var(--accent);background:color-mix(in srgb,var(--accent) 18%,transparent)}.pairs-list{max-width:640px}.pairs-row{display:flex;align-items:center;gap:.7rem;background:var(--panel);border:1px solid var(--border);border-radius:6px;padding:.4rem .7rem;margin-bottom:.35rem;font-size:.83rem}.pairs-row-item{flex:1;color:var(--muted);font-size:.76rem;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-row.locked,.card.locked{opacity:.55}.nav-row.locked:hover{background:none}.lock-screen{font-size:.95rem;max-width:560px;line-height:1.6}.gr-locked{color:var(--muted)}.class-pace{background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:5px;padding:.25rem .5rem;font-size:.8rem;max-width:100%}.tw{display:grid;grid-template-columns:minmax(0,1fr) 13rem;gap:1.25rem;align-items:start;margin-bottom:1rem}.tw-listing{margin:0 0 1rem;max-width:40rem}.tw-line{display:inline-block;min-width:100%;border-radius:3px}.tw-line.tw-now{background:color-mix(in srgb,var(--hue-keyword) 28%,transparent);box-shadow:inset 3px 0 0 var(--hue-keyword)}.tw-n{display:inline-block;width:2.2em;padding-right:.8em;text-align:right;color:var(--ink-punct);opacity:.6;-webkit-user-select:none;user-select:none}.tw-trail{display:flex;flex-direction:column;gap:.3rem;margin-bottom:.9rem}.tw-row{display:flex;flex-wrap:wrap;align-items:center;gap:.5rem;margin-left:calc(var(--tw-depth, 0) * 1.6rem);padding:.35rem .6rem;border:1px solid var(--border);border-left-width:3px;border-radius:6px;background:var(--panel);font-size:.88rem}.tw-row.done{color:var(--muted);border-left-color:var(--ok)}.tw-row.now{border-color:var(--accent);border-left-width:3px;box-shadow:0 0 0 2px color-mix(in srgb,var(--accent) 25%,transparent)}.tw-ln{min-width:1.8em;text-align:right;font-family:ui-monospace,monospace;color:var(--muted);font-size:.8rem}.tw-code{font-family:ui-monospace,monospace;white-space:pre;color:var(--fg)}.tw-row.done .tw-code{color:var(--muted)}.tw-chip{font-family:ui-monospace,monospace;font-size:.8rem;padding:.1rem .45rem;border-radius:999px;background:var(--panel2);border:1px solid var(--border);color:var(--fg)}.tw-chip.tw-back{border-color:var(--ok);color:var(--ok)}.tw-enter{margin-left:auto}.tw-ask{display:inline-flex;align-items:center;gap:.4rem;margin-left:auto}.tw-ask-label{color:var(--muted);font-size:.82rem}.tw-val{width:5.5rem;font-family:ui-monospace,monospace;font-size:.88rem;background:var(--panel2);color:var(--fg);border:1px solid var(--border);border-radius:4px;padding:.3rem .45rem}.tw-val:focus{outline:none;border-color:var(--accent)}.tw-val.bad{border-color:var(--bad);color:var(--bad)}.tw-reveal{font-family:ui-monospace,monospace;font-size:.88rem;color:var(--ok);white-space:nowrap;-webkit-user-select:all;user-select:all}.tw-var .tw-val{flex:1;min-width:3rem;width:auto}.tw-reveal:before{content:"→ ";color:var(--muted)}.tw-memory{position:sticky;top:.5rem;border:1px solid var(--border);border-radius:8px;background:var(--panel);padding:.75rem .9rem}.tw-memory h3{margin:0 0 .1rem;font-size:.95rem}.tw-where{color:var(--muted);font-size:.8rem;margin-bottom:.6rem}.tw-var{display:flex;align-items:center;gap:.5rem;padding:.3rem 0;border-top:1px solid var(--border)}.tw-name{font-family:ui-monospace,monospace;min-width:4rem;color:var(--fg)}.tw-dash{color:var(--muted);font-family:ui-monospace,monospace;padding-left:.45rem}.tw-error{color:var(--bad)}@media(max-width:640px){.tw{grid-template-columns:1fr}.tw-memory{position:static}}.run-console{display:flex;flex-direction:column;border:1px solid var(--border);border-radius:6px;background:var(--panel2);margin-top:6px}.run-console .cb-out{margin:0;padding:8px 10px;min-height:2.4em;max-height:240px;overflow:auto;font:13px/1.4 ui-monospace,SF Mono,Menlo,Consolas,monospace;white-space:pre-wrap;word-break:break-word}.run-console .cb-stdin-form{display:flex;gap:6px;padding:6px 8px;border-top:1px solid var(--border)}.run-console .cb-stdin{flex:1;min-width:0;font:13px ui-monospace,SF Mono,Menlo,Consolas,monospace}.run-console .echo{color:var(--muted)}.cb-out .sys{color:var(--muted);font-style:italic}.cb-out .sys.dim{opacity:.7}.cb-out .sys.err{color:var(--ansi-red);font-style:normal}.cb-out .cb-stderr{color:var(--ansi-red)}.cb-errs:empty{display:none}.cb-errs{padding:0 8px 8px}.py-err{border-left:3px solid var(--bad);background:color-mix(in srgb,var(--bad) 10%,var(--panel2));border-radius:4px;padding:8px 10px;font-size:.92rem;line-height:1.45;color:var(--fg)}.py-err-head{font-weight:600;color:var(--bad-ink)}.py-err-fix{margin-top:2px}.py-err-ran{margin-top:4px;color:var(--muted);font-size:.88em}.py-err-go{margin-top:6px;font-size:.85em}.cm-editor .cm-err-line{background:color-mix(in srgb,var(--bad) 18%,transparent);box-shadow:inset 3px 0 0 var(--bad)}.tb-toolbar{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.tb-toolbar .presence-chips:not(:empty){margin-bottom:8px}.lesson-run{margin:14px 0 20px}.lesson-run-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:6px}.lesson-run-bar .check-btn{font-weight:600}.lesson-run-status{color:var(--muted);font-size:.9em}.test-bubble.challenge{border-color:var(--bubble-challenge)}.test-bubble.challenge.pass{background:var(--bubble-challenge);color:#111}.test-bubble.challenge.fail{background:transparent;color:var(--ink-bubble-challenge);border-style:dashed}.test-pop-msg{white-space:pre-wrap}.roster-bubbles{display:inline-flex;gap:3px;margin-left:6px;vertical-align:middle}.master-bubble{display:inline-block;width:10px;height:10px;border-radius:50%;border:1px solid var(--border);background:transparent;padding:0}.master-bubble.bubble-pass{background:#4ec9b0;border-color:#4ec9b0}.master-bubble.bubble-fail{background:#f48771;border-color:#f48771}.master-bubble.bubble-partial{background:linear-gradient(90deg,#4ec9b0 50%,#f48771 50%);border-color:#dcdcaa}.master-bubble.bubble-unknown{background:transparent}.master-bubble.bubble-challenge-pass{background:var(--bubble-challenge);border-color:var(--bubble-challenge)}.master-bubble.bubble-challenge-fail{background:transparent;border-color:var(--bubble-challenge);border-style:dashed}.master-bubble.bubble-challenge-partial{background:linear-gradient(90deg,var(--bubble-challenge) 50%,transparent 50%);border-color:var(--bubble-challenge)}.master-bubble.bubble-challenge-unknown{border-color:var(--bubble-challenge);opacity:.6}.roster-clip{font-size:.75em;margin-left:6px;padding:0 5px;border-radius:8px;background:var(--btn-quiet);color:var(--fg)}.roster-grade{font-size:.75em;margin-left:6px;padding:0 6px;border-radius:8px;font-weight:600}.roster-grade.pending{background:#dcdcaa;color:#111}.roster-grade.pushed{background:#4ec9b0;color:#111}.roster-head{display:flex;align-items:center;gap:6px}.roster-head .roster-filter{flex:1;min-width:0;font-size:.85em;padding:2px 6px}.roster-item.active .roster-row{outline:2px solid var(--accent)}.presence-chips{display:inline-flex;gap:4px}.presence-chip{font-size:.75em;padding:1px 7px;border-radius:10px;background:var(--chip, #89b4fa);color:#111}.turtle-win{min-width:240px;min-height:220px}.turtle-win .instr-body{padding:0;background:#000;display:flex;align-items:center;justify-content:center;overflow:hidden}.turtle-img{width:100%;height:100%;object-fit:contain;touch-action:none;-webkit-user-select:none;user-select:none;cursor:crosshair}.turtle-status{font-size:.75em;margin-left:8px;padding:0 6px;border-radius:8px;background:var(--btn-quiet);color:var(--fg)}.turtle-status.live{background:#4ec9b0;color:#111}.turtle-status.done{background:#569cd6;color:#111}.turtle-status.error{background:#f48771;color:#111}.grade-panel{margin-top:10px;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--panel2)}.grade-head{display:flex;gap:10px;align-items:baseline;margin-bottom:8px}.grade-title{font-weight:700}.grade-who{color:var(--muted)}.grade-due{font-size:.85em;color:var(--muted);margin-left:auto}.grade-due.late{color:var(--bad);font-weight:600}.grade-row{display:flex;gap:10px;align-items:center;flex-wrap:wrap;margin:6px 0}.grade-row label{display:inline-flex;gap:6px;align-items:center}.grade-habits,.grade-style{width:3.5em}.grade-habits.auto{border-color:var(--warn)}.grade-comment{flex:1;min-width:160px}.grade-canvas-state{font-size:.9em;color:var(--muted)}.grade-canvas-state.on{color:var(--ok)}.grade-connect-form{display:flex;gap:8px;align-items:center;flex-wrap:wrap;margin:6px 0}.grade-connect-hint{font-size:.8em;color:var(--muted)}.grade-rubric{margin-top:8px;border-top:1px solid var(--border);padding-top:8px}.grade-rubric-head{display:flex;gap:8px;align-items:center}.grade-rubric-row{display:flex;gap:10px;align-items:center;padding:4px 0;flex-wrap:wrap}.grade-rubric-name{flex:1;min-width:200px}.grade-rubric-btns{display:inline-flex;gap:4px}.grade-rubric-btn.active{background:var(--accent);color:var(--bg)}.grade-rubric-foot{display:flex;gap:10px;align-items:center;margin-top:6px}.pb-marker.m-run,.pb-marker.m-test{width:11px;height:12px;transform:translate(-5px);border:none;border-radius:0;clip-path:polygon(50% 0,100% 100%,0 100%)}.pb-swatch.m-run,.pb-swatch.m-test{border-radius:0;clip-path:polygon(50% 0,100% 100%,0 100%)}.pb-marker.m-run,.pb-swatch.m-run{background:var(--fg)}.pb-marker.m-run.bad,.pb-swatch.m-run.bad{background:repeating-linear-gradient(135deg,var(--fg) 0 3px,#c0392b 3px 5px)}.pb-marker.m-test,.pb-swatch.m-test{background:#6a9955}.pb-marker.m-test.bad,.pb-swatch.m-test.bad{background:repeating-linear-gradient(135deg,#6a9955 0 3px,#c0392b 3px 5px)}.pb-swatch.m-deadline{background:#dcdcaa}.pb-deadline{position:absolute;top:-6px;bottom:-6px;width:2px;background:#dcdcaa;box-shadow:0 0 0 1px #0006;pointer-events:auto}.pb-deadline-note{margin-left:auto;font-size:.85em;color:var(--warn)}:root{--mark-ai: #f0a030;--ai-clip: #39ff14}:root[data-theme=light],:root[data-theme=beige]{--ai-clip: #008a2a}.m-ai,.pb-swatch.m-ai{background:var(--mark-ai)}.pb-marker.m-ai{height:22px}.m-ai-copy,.pb-swatch.m-ai-copy,.m-ai-paste,.pb-swatch.m-ai-paste{background:var(--ai-clip)}.classroom{padding:16px 24px;max-width:1400px}.cls-toggles{display:flex;gap:24px;flex-wrap:wrap;margin:8px 0 16px}.cls-toggle{display:inline-flex;gap:8px;align-items:center}.cls-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px}.block-card{text-align:left;padding:14px;border:1px solid var(--border);border-radius:10px;background:var(--panel2);color:var(--fg);cursor:pointer}.block-card:hover{border-color:var(--accent)}.block-card.archive{opacity:.7}.block-card-head{display:flex;gap:10px;align-items:baseline}.block-card-letter{font-size:1.6em;font-weight:700}.block-card-stats{display:flex;gap:12px;margin:6px 0;color:var(--muted);font-size:.9em}.block-card-canvas{font-size:.85em;color:var(--muted)}.cls-meta{display:flex;gap:20px;align-items:center;margin:8px 0 14px;flex-wrap:wrap}.cls-course .manage-input{margin:0 8px;width:9em}.cls-rows{display:flex;flex-direction:column;gap:8px}.manage-row{display:grid;grid-template-columns:minmax(200px,1.4fr) auto auto auto;gap:8px 12px;align-items:end;padding:10px 12px;border:1px solid var(--border);border-radius:8px;background:var(--panel2)}.manage-row .assignment-title{grid-column:1 / -1;display:flex;gap:8px;align-items:baseline}.manage-row .assignment-id{color:var(--muted);font-size:.85em}.manage-row .manage-exam-note{grid-column:1 / -1;color:var(--muted);font-size:.85em;font-style:italic}.assignment-date{display:flex;flex-direction:column;gap:2px;font-size:.8em;color:var(--muted)}.assignment-date .manage-input{font-size:1rem}.manage-row button,.manage-row .manage-open-btn{font-size:.85em}.manage-open-btn.disabled{opacity:.45;pointer-events:none}.manage-publish-btn.is-published{color:var(--ok-ink)}.manage-publish-btn.is-unpublished{color:var(--warn-ink)}.manage-status{font-size:.85em;color:var(--muted)}.manage-status.saved{color:var(--ok)}.manage-status.error{color:var(--bad)}.manage-status.saving{color:var(--warn)}.manage-empty{color:var(--muted);padding:12px}.block-pick{position:fixed;top:0;right:0;bottom:0;left:0;z-index:900;display:flex;align-items:center;justify-content:center;background:#0000008c}.block-pick-card{background:var(--panel);border:1px solid var(--border);border-radius:10px;padding:20px 24px;max-width:420px}.block-pick-btns{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0}.block-pick-btns button{font-size:1.05em;padding:8px 14px}.block-pick-status{color:var(--muted);font-size:.9em;min-height:1.2em}.personal{display:grid;grid-template-columns:240px 1fr;gap:14px;height:100%}.personal-side{border-right:1px solid var(--border);padding-right:10px;overflow:auto}.personal-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:8px;font-weight:600}.personal-row{display:flex;align-items:center;gap:6px;padding:2px 0}.personal-row.active .personal-name{color:var(--accent);font-weight:600}.personal-name{flex:1;text-align:left;background:none;border:0;padding:4px 6px;cursor:pointer;font:inherit;color:inherit}.personal-row.deleted .personal-name{opacity:.7;cursor:default}.personal-deleted{margin-top:12px;font-size:.9em}.personal-main{min-width:0}.teacher-lesson-live .lesson-run-editor{outline:1px dashed var(--warn)}.grade-pulled{align-items:baseline;gap:.4rem;font-size:.85rem}.grade-pulled-label{color:var(--muted)}.grade-pulled-line{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.grade-pulled.error .grade-pulled-line{color:var(--bad)}.grade-pulled-refresh{padding:0 .4rem}.nav-row.nav-sub{padding-left:1.6rem;font-size:.9em;opacity:.9}.nav-row.nav-sub .nav-tag{min-width:7.2em;text-align:center}.nav-row.nav-sub>span:first-child{flex:1 1 auto;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.nav-done{flex:0 0 1em;text-align:center;color:var(--ok);font-weight:700}.nav-row.nav-teach{gap:.3rem}.nav-row.nav-teach .nav-section-top{min-height:1.5em}.nav-teach-sub{display:flex;align-items:center;justify-content:space-between;gap:.5rem;min-height:1.4em;font-size:.8em;color:var(--muted)}.nav-clip{padding:0 6px;border-radius:8px;background:var(--btn-quiet);color:var(--fg);font-variant-numeric:tabular-nums}.nav-clip.quiet{background:none;color:var(--muted)}.nav-subtext{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.ai-teacher-win{min-width:300px;min-height:240px}.ai-teacher-win .instr-body{display:flex;flex-direction:column;overflow:hidden;padding:0}.ai-t-top{flex:none;padding:.5rem .75rem 0}.ai-t-pick{max-width:100%;padding:.2rem .35rem;background:var(--bg);color:var(--fg);border:1px solid var(--border);border-radius:4px;font:inherit;font-size:.82rem}.ai-t-pick:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.ai-t-item{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:.85rem;font-weight:600}.ai-t-head{flex:none;padding:.3rem .75rem .45rem;color:var(--muted);font-size:.75rem;font-variant-numeric:tabular-nums}.ai-t-summary{flex:none;max-height:40%;overflow:auto;margin:0 .75rem .5rem;padding:.35rem .6rem;background:var(--panel2);border:1px solid var(--border);border-radius:6px;font-size:.8rem}.ai-t-summary>summary{cursor:pointer;font-weight:600}.ai-t-summary-text{margin-top:.35rem;white-space:pre-wrap;overflow-wrap:anywhere}.ai-t-summary-note{margin-top:.35rem;color:var(--muted);font-size:.72rem}.ai-t-status{flex:none;padding:.5rem .75rem;border-top:1px solid var(--border);color:var(--muted);font-size:.85rem}.ai-t-status.error{color:var(--bad)}.ai-t-log{flex:1;min-height:0;overflow:auto;display:flex;flex-direction:column;gap:.5rem;padding:.65rem .75rem 1.1rem;border-top:1px solid var(--border)}.ai-t-msg{flex:none;padding:.4rem .65rem;border:1px solid var(--border);border-radius:8px;color:var(--fg);overflow-wrap:anywhere}.ai-t-student{background:var(--btn-quiet)}.ai-t-student .ai-t-text{white-space:pre-wrap}.ai-t-tutor{background:var(--bg)}.ai-t-msg.held,.ai-t-msg.flagged{border-color:var(--bad)}.ai-t-meta{display:flex;align-items:baseline;gap:.5rem;margin-bottom:.15rem;font-size:.72rem}.ai-t-who{font-weight:700}.ai-t-time{color:var(--muted);font-variant-numeric:tabular-nums}.ai-t-care{padding:0 5px;border:1px solid var(--bad);border-radius:8px;color:var(--fg)}.ai-t-flag{margin-left:auto;padding:0 6px;border-radius:8px;background:var(--bad);color:var(--bg);font-weight:700}.ai-t-msg .ai-removed{margin-top:.2rem;text-align:left}.ai-t-student .ai-t-time,.ai-t-student .ai-removed{color:var(--fg)}.ai-t-flagline{margin-top:.3rem;padding-left:.45rem;border-left:3px solid var(--bad);color:var(--fg);font-size:.75rem;font-weight:700}.ai-t-held{margin-top:.5rem;padding:.4rem .6rem;background:var(--panel2);border-left:3px solid var(--bad);border-radius:0 6px 6px 0}.ai-t-held-label{font-size:.78rem;font-weight:700}.ai-t-held-reason{color:var(--muted);font-size:.75rem}.ai-t-held-part{margin-top:.4rem;color:var(--muted);font-size:.72rem;text-transform:uppercase;letter-spacing:.03em}.ai-count{color:var(--fg);border:1px solid var(--border);font-variant-numeric:tabular-nums;cursor:pointer}.ai-count:hover{border-color:var(--accent)}.ai-count.held,.roster-row:hover .ai-count.held,.roster-row.active .ai-count.held{background:var(--bad);border-color:var(--bad);color:var(--bg);font-weight:700}.roster-ai{margin-left:6px;padding:0 5px;border-radius:8px;background:var(--btn-quiet);font-size:.75em}.nav-ai-host{position:relative}.nav-ai-chips{position:absolute;right:1rem;bottom:calc(.5rem - 1px);display:flex;flex-direction:column;align-items:flex-end;gap:2px}.nav-ai-host.nav-ai-child .nav-ai-chips{top:50%;right:.6rem;bottom:auto;transform:translateY(-50%)}.nav-ai-host>.nav-teach .nav-teach-sub{padding-right:3.1rem}.nav-ai-host.nav-ai-child>.nav-row{padding-right:3.1rem}.nav-ai-count{padding:0 6px;background:var(--panel2);border-radius:8px;font:inherit;font-size:.68rem;line-height:1.4}.nav-ai-count:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.aip-grid{margin-top:1rem}.aip-card{position:relative}.ai-card-badges{position:absolute;top:-.55rem;right:-.55rem;display:flex;gap:.25rem}.ai-card-off,.ai-card-urgent{min-width:1.45rem;height:1.45rem;padding:0 .4rem;border-radius:.75rem;background:var(--bad);color:var(--bg);box-shadow:0 0 0 2px var(--bg);font-size:.8rem;font-weight:700;line-height:1.45rem;text-align:center;font-variant-numeric:tabular-nums}.ai-card-urgent{padding:0;border-radius:50%}.aip-back{display:inline-flex;align-items:center;gap:.3rem;border-radius:4px;font-weight:600;text-decoration:none;white-space:nowrap}.aip-back:hover{border-color:var(--accent);color:var(--accent)}.aip-back:focus-visible{outline:2px solid var(--accent);outline-offset:1px}.ai-page .browse-head{margin-bottom:.5rem}.ai-page .aip-section{margin-top:1.25rem}.aip-bar{display:flex;align-items:center;gap:.6rem;margin-bottom:.5rem}.aip-head{margin:0;font-size:1rem}.aip-count{color:var(--muted);font-size:.8rem}.aip-count.alert{color:var(--fg);font-weight:700}.aip-status{margin-top:.5rem;color:var(--bad);font-size:.85rem}.aip-status:empty{display:none}.aip-empty{padding:.5rem 0}.aip-flags{display:flex;flex-direction:column;gap:.5rem}.aip-flag{padding:.55rem .8rem;background:var(--panel);border:1px solid var(--border);border-left:3px solid var(--bad);border-radius:6px;color:var(--fg);font-size:.85rem}.aip-flag.urgent{border-color:var(--bad);border-left-width:6px}.aip-flag.reviewed{border-color:var(--border);border-left-width:3px;opacity:.7}.aip-flag-top{display:flex;flex-wrap:wrap;align-items:baseline;gap:.35rem .6rem}.aip-flag-name{font-weight:700}.aip-flag-cat{font-weight:600}.aip-flag-time{margin-left:auto;color:var(--muted);font-size:.78rem;font-variant-numeric:tabular-nums}.aip-flag-reason{margin-top:.3rem;color:var(--muted);font-size:.8rem}.aip-flag-label{font-weight:600}.aip-flag-msg{margin:.4rem 0 0;padding:.35rem .6rem;background:var(--btn-quiet);border-radius:6px;white-space:pre-wrap;overflow-wrap:anywhere}.aip-flag-btns{display:flex;flex-wrap:wrap;align-items:center;gap:.4rem;margin-top:.45rem}.aip-flag-btns button,.aip-ai-cell button{padding:.2rem .55rem;font-size:.78rem}.aip-flag-reviewed{color:var(--muted);font-size:.78rem}.aip-pill{display:inline-block;padding:0 .45rem;border-radius:.6rem;border:1px solid var(--border);font-size:.72rem;font-weight:700;line-height:1.2rem}.aip-pill.urgent,.aip-pill.off{background:var(--bad);border-color:var(--bad);color:var(--bg)}.aip-pill.on{color:var(--muted)}.aip-table-wrap{overflow-x:auto}.aip-table{width:100%;border-collapse:collapse;font-size:.85rem}.aip-table th,.aip-table td{padding:.3rem .55rem;border-bottom:1px solid var(--border);text-align:left;white-space:nowrap}.aip-table th{color:var(--muted);font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.04em}.aip-table tr.off td{background:var(--panel)}.aip-table td.aip-num,.aip-table th.aip-col-today,.aip-table th.aip-col-messages,.aip-table th.aip-col-problems,.aip-table th.aip-col-flags{text-align:right;font-variant-numeric:tabular-nums}.aip-table td.aip-num.alert{color:var(--fg);font-weight:700}.aip-last{color:var(--muted);font-variant-numeric:tabular-nums}.aip-ai-cell{display:flex;align-items:center;gap:.45rem}.aip-name{background:none;border:none;padding:0;color:var(--accent);font:inherit;font-weight:600;cursor:pointer}.aip-name.plain{color:var(--fg);cursor:default}button.aip-name:hover:not(:disabled){filter:none;text-decoration:underline}button.aip-name:focus-visible{outline:2px solid var(--accent);outline-offset:2px}