:root{--bg: #f3f5f8;--bg-2: #ffffff;--surface: #ffffff;--line: #d7dee8;--text: #1b2430;--muted: #5d6b7c;--accent: #1d4ed8;--accent-hover: #1e40af;--ok: #166534;--ok-bg: #dcfce7;--warn: #92400e;--warn-bg: #fef3c7;--bad: #b91c1c;--bad-bg: #fee2e2;--info: #1e40af;--info-bg: #dbeafe;--radius: 10px;--font: "Segoe UI", system-ui, sans-serif;--mono: ui-monospace, "SFMono-Regular", Menlo, monospace;--shadow: 0 1px 2px rgba(16, 24, 40, .05)}*{box-sizing:border-box}html,body,#root{margin:0;min-height:100%}body{background:var(--bg);color:var(--text);font:15px/1.5 var(--font)}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}button,input,select,textarea{font:inherit;color:inherit}.shell{min-height:100vh;display:flex;flex-direction:column}.top{display:flex;align-items:center;gap:20px;padding:12px 24px;background:var(--bg-2);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}.brand{font-weight:700;color:var(--text);letter-spacing:.01em;display:inline-flex;align-items:center;gap:8px}.brand:hover{text-decoration:none;color:var(--text)}.nav-count{display:inline-flex;align-items:center;justify-content:center;min-width:1.4em;height:1.4em;padding:0 6px;border-radius:999px;background:var(--accent);color:#fff;font-size:11px;font-weight:700;line-height:1}.nav-count.subtle{background:#e2e8f0;color:var(--text)}.nav{display:flex;gap:16px;align-items:center}.nav a{color:var(--muted);display:inline-flex;align-items:center;gap:6px}.nav a.active,.nav a:hover{color:var(--text);text-decoration:none}.session{margin-left:auto;display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px}.banner{margin:0;padding:10px 24px;white-space:pre-wrap}.banner.error{background:var(--bad-bg);color:var(--bad);border-bottom:1px solid #fecaca}.banner.ok{background:var(--ok-bg);color:var(--ok);border-bottom:1px solid #bbf7d0}.app{flex:1;padding:24px 24px 64px;max-width:1120px;width:100%;margin:0 auto;min-width:0}h1{font-size:24px;margin:0 0 6px;font-weight:700}h2{font-size:16px;margin:0 0 10px;font-weight:650}.lede{color:var(--muted);margin:0 0 20px}.row{display:flex;gap:10px;flex-wrap:wrap;align-items:end}.grid{display:grid;gap:16px}.grid-2{grid-template-columns:repeat(auto-fit,minmax(280px,1fr));min-width:0}.grid-2>*{min-width:0}.stack{display:flex;flex-direction:column;gap:10px}.grow{flex:1;min-width:160px}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);min-width:0}label{display:block;font-size:12px;color:var(--muted);margin-bottom:4px;font-weight:600}input,select,textarea{width:100%;background:#fff;border:1px solid var(--line);border-radius:8px;padding:8px 10px}textarea{min-height:96px;resize:vertical}input:focus,select:focus,textarea:focus{outline:2px solid #bfdbfe;border-color:var(--accent)}input[type=checkbox],input[type=radio]{width:auto;min-width:16px;height:16px;margin:0;padding:0;flex-shrink:0;accent-color:var(--accent);border-radius:3px;cursor:pointer}.check{display:inline-flex;align-items:center;gap:8px;margin:0;font-size:14px;font-weight:500;color:var(--text);cursor:pointer}.table-wrap{overflow-x:auto;max-width:100%}.table-actions{display:flex;flex-wrap:wrap;gap:6px;align-items:center;justify-content:flex-end}.btn,button{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--accent);border:0;color:#fff;padding:8px 14px;border-radius:8px;cursor:pointer;white-space:nowrap;text-decoration:none;font-weight:600}.btn:hover,button:hover{background:var(--accent-hover);text-decoration:none;color:#fff}.btn.secondary,button.secondary{background:#e8edf4;color:var(--text)}.btn.secondary:hover,button.secondary:hover{background:#dbe3ee;color:var(--text)}.btn.danger,button.danger{background:#b91c1c}.btn.danger:hover,button.danger:hover{background:#991b1b}button:disabled,.btn[aria-disabled=true]{opacity:.5;cursor:not-allowed}a.btn{color:#fff}a.btn.secondary{color:var(--text)}.muted{color:var(--muted)}.mono{font-family:var(--mono);font-size:12px}table{width:100%;border-collapse:collapse}th,td{text-align:left;padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle}th{color:var(--muted);font-size:12px;font-weight:650;white-space:nowrap}tr.clickable{cursor:pointer}tr.clickable:hover td{background:#f8fafc}.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:11px;font-weight:650;background:var(--info-bg);color:var(--info);white-space:nowrap}.badge.ok{background:var(--ok-bg);color:var(--ok)}.badge.warn{background:var(--warn-bg);color:var(--warn)}.badge.bad{background:var(--bad-bg);color:var(--bad)}.badge.info{background:var(--info-bg);color:var(--info)}.tabs{display:flex;gap:6px;margin:0 0 16px;flex-wrap:wrap}.tabs a{padding:6px 12px;border-radius:8px;background:#fff;color:var(--muted);border:1px solid var(--line)}.tabs a.active{color:var(--text);border-color:var(--accent);background:#eff6ff}.tabs a:hover{text-decoration:none}.actions{display:flex;gap:8px;flex-wrap:wrap;margin:12px 0;align-items:center}.stat-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:10px}.stat{background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:12px}.stat b{display:block;font-size:22px}.stat span{color:var(--muted);font-size:12px}.stepper{display:flex;gap:0;margin:0 0 18px;overflow-x:auto}.step{flex:1;min-width:120px;padding:10px 12px;border:1px solid var(--line);background:#fff;color:var(--muted);font-size:13px;font-weight:600}.step:first-child{border-radius:8px 0 0 8px}.step:last-child{border-radius:0 8px 8px 0}.step+.step{border-left:0}.step.current{background:#eff6ff;color:var(--accent);border-color:var(--accent)}.step.done{background:var(--ok-bg);color:var(--ok)}.warn-box,.ok-box,.token-once{padding:12px 14px;border-radius:8px;margin:10px 0}.warn-box{background:var(--warn-bg);border:1px solid #fde68a;color:var(--warn)}.ok-box{background:var(--ok-bg);border:1px solid #bbf7d0;color:var(--ok)}.token-once{background:#f0fdf4;border:1px dashed var(--ok)}.token-once code{display:block;margin:8px 0;word-break:break-all;font-family:var(--mono);font-size:12px}.empty{color:var(--muted);padding:24px 0}.split{display:grid;grid-template-columns:1fr 1fr;gap:12px}@media(max-width:860px){.split{grid-template-columns:1fr}}.statement-box{max-height:280px;overflow:auto;padding:10px 12px;background:#f8fafc;border:1px solid var(--line);border-radius:8px;white-space:pre-wrap}.statement-details{border:1px solid var(--line);border-radius:8px;background:#fff;min-width:0}.statement-details>summary{cursor:pointer;list-style:none;padding:10px 12px;font-weight:650;color:var(--text);-webkit-user-select:none;user-select:none}.statement-details>summary::-webkit-details-marker{display:none}.statement-details>summary:before{content:"▸ ";color:var(--muted);font-weight:700}.statement-details[open]>summary:before{content:"▾ "}.statement-details[open]>summary{border-bottom:1px solid var(--line)}.statement-details .statement-box{margin:0;border:0;border-radius:0 0 8px 8px}.statement-details>.muted{margin:0;padding:10px 12px}.task-body,.task-source{min-width:0}.source-panel,.source-file{min-width:0;max-width:100%}.markdown{line-height:1.55}.markdown p{margin:0 0 10px}.markdown ul,.markdown ol{margin:0 0 10px;padding-left:1.2em}.markdown pre{background:#f8fafc;border:1px solid var(--line);border-radius:8px;padding:10px;overflow:auto;font-family:var(--mono);font-size:12px}.markdown code{font-family:var(--mono);font-size:.92em}.source-meta{display:flex;gap:12px;margin-bottom:8px;font-size:12px;flex-wrap:wrap}.source-path{margin-bottom:4px;font-size:12px;color:var(--muted)}.source-file+.source-file{margin-top:12px}.source-tabs{display:flex;flex-wrap:wrap;gap:6px;margin:0 0 10px}.source-tab{background:#fff;color:var(--muted);border:1px solid var(--line);padding:5px 10px;font-family:var(--mono);font-size:12px;font-weight:600;border-radius:8px}.source-tab.active{border-color:var(--accent);color:var(--accent);background:#eff6ff}.source-tab:hover{background:#f8fafc;color:var(--text)}pre.code-block{margin:0;padding:12px;background:#f8fafc;border:1px solid var(--line);border-radius:8px;overflow-x:auto;overflow-y:auto;max-height:560px;max-width:100%;min-width:0;font-family:var(--mono);font-size:12px;line-height:1.45;white-space:pre}pre.code-block code{display:block;min-width:max-content}.pf-card{border:1px solid var(--line);border-radius:8px;padding:12px;margin:8px 0;background:#f8fafc}.login-wrap{min-height:100vh;display:flex;flex-direction:column;align-items:center;justify-content:center;padding:24px}.login-card{width:100%;max-width:400px}.filters{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px}.chip-btn{background:#fff;color:var(--muted);border:1px solid var(--line);padding:6px 10px;font-weight:600}.chip-btn.active{border-color:var(--accent);color:var(--accent);background:#eff6ff}.chip-btn:hover{background:#f8fafc;color:var(--text)}.nowrap{white-space:nowrap}.page-head{display:flex;justify-content:space-between;align-items:flex-start;gap:12px;flex-wrap:wrap;margin-bottom:8px}.task-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;flex-wrap:wrap}.approve-page{padding-bottom:24px}.approve-page .card[id^=task-]{scroll-margin-top:16px}.approve-actions{margin-top:8px}.approve-actions .row{align-items:end}.approve-actions .score-field{width:120px;min-width:120px;flex:none}.approve-actions .score-field-wide{width:auto;min-width:220px;flex:1 1 240px}.approve-actions .score-hint{display:block;margin-top:4px;font-size:12px}.approve-hint{margin:8px 0 0;font-size:12px;color:var(--muted)}.lms-comment{min-height:420px;width:100%;font-family:var(--mono);font-size:14px;line-height:1.45}.task-feedback-edit{width:100%;min-height:160px;font-family:inherit;font-size:14px;line-height:1.45;resize:vertical}.template-box{padding:12px;border:1px solid var(--border, #e2e8f0);border-radius:8px;background:#f8fafc;margin-bottom:8px}.task-score-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin:0 0 12px}.task-score-row label{margin:0;font-weight:600}.task-score-input{display:flex;align-items:center;gap:8px}.task-score-input input{width:88px}.task-score-meta{font-size:13px}.pager{display:flex;align-items:center;gap:8px;flex-wrap:wrap}.pager .count{color:var(--muted);font-size:13px}