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89px);display:flex;flex-direction:column;background:#fff}.exam-toolbar{display:flex;align-items:center;gap:20px;padding:13px 25px;border-bottom:1px solid var(--line)}.exam-toolbar h2{font-size:18px;margin:0}.exam-toolbar small{display:block;color:var(--muted);margin-top:3px}.timer{margin-left:auto;font-family:ui-monospace,monospace;font-size:23px}.exam-body{display:grid;grid-template-columns:300px 1fr;flex:1;min-height:0}.instructions{overflow:auto;padding:24px;background:#f4f6f3;border-right:1px solid var(--line)}.instructions pre{white-space:pre-wrap;font:inherit;font-size:14px;line-height:1.7}.instructions .hint{border-top:1px solid var(--line);padding-top:15px}.editor-wrap{position:relative;min-height:0}.editor-wrap iframe{border:0;width:100%;height:100%;display:block}.save-status{font-size:11px;color:var(--muted)}dialog{border:1px solid var(--line);border-radius:18px;padding:32px;width:min(520px,92vw);box-shadow:0 20px 90px #102e3150}dialog::backdrop{background:#142e2bd9;backdrop-filter:blur(7px)}dialog h2{font-size:30px}dialog button{width:auto}#unlock-form button{width:100%}#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#203631;color:white;padding:12px 22px;border-radius:9px;display:none;z-index:10}.empty{text-align:center;padding:35px;color:var(--muted)}.success-icon{font-size:38px;color:var(--green)}.wide{width:100%}.notice{border-left:3px solid #b9a060;padding:9px 16px;font-size:13px;background:#f9f6ec}.hidden{display:none!important}@media(max-width:800px){.grid{grid-template-columns:1fr}.topnote{display:none}#teacher-link{margin-left:auto}.shell{margin-top:30px}h1{font-size:35px}.exam-body{grid-template-columns:210px 1fr}.exam-toolbar{gap:10px;padding:12px}.stat{padding:12px}.card{padding:22px}.exam-toolbar .badge{display:none}}@media print{body{display:none}}

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#work-dialog{width:min(1100px,95vw);max-height:90vh;overflow:auto}#work-dialog .actions{justify-content:space-between}#work-dialog h2{margin:0}.work-file{margin-top:24px}.work-file pre{padding:18px;border:1px solid var(--line);border-radius:8px;background:#f4f6f3;overflow:auto;max-height:60vh;tab-size:4}.work-file code{white-space:pre;font-family:ui-monospace,monospace;line-height:1.6}

.editor-loading{display:none}.editor-restoring #editor{visibility:hidden}.editor-restoring .editor-loading{position:absolute;inset:0 0 60px;display:grid;place-items:center;color:#fff;background:#1e1e1e;font-size:16px}