:root{font-family:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;color:#142439;background:#f4f7f9;--accent:#087f75;--border:#dce4e9;--muted:#647488}*{box-sizing:border-box}body{margin:0}[hidden]{display:none!important}button,input,textarea,select{font:inherit}button{cursor:pointer;font-size:14px;font-weight:600}a{color:inherit;text-decoration:none}button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:3px solid #49a4dc;outline-offset:3px}header{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:5}.header-inner{max-width:1080px;padding:0 28px;margin:auto;height:82px;display:flex;justify-content:space-between;align-items:center;gap:20px}.brand{font-size:23px;font-weight:750;letter-spacing:-.7px}.brand span{font-size:12px;font-weight:400;color:var(--muted);letter-spacing:1px;margin-left:18px}.header-actions{display:flex;align-items:center;gap:24px}.timer{display:flex;gap:12px;align-items:center;font-size:12px;color:var(--muted)}.timer strong{font-size:27px;font-variant-numeric:tabular-nums;font-weight:650;letter-spacing:1px;color:#08746b}.timer.urgent strong{color:#b44b34}.primary{border:0;background:var(--accent);color:white;border-radius:7px;padding:13px 22px;font-size:15px}.primary:hover{background:#066b63}.secondary{background:white;border:1px solid #c3d4d1;border-radius:7px;color:#146f66;padding:9px 15px}.secondary:hover{background:#eef7f5}button:disabled{background:#e7edef;color:#798793;cursor:default}main{max-width:900px;margin:44px auto 0;padding:0 28px}.panel{background:white;border:1px solid var(--border);border-radius:12px;padding:32px;margin-bottom:24px}.welcome{padding:40px}.welcome-heading{display:flex;align-items:center;gap:28px;padding-bottom:30px;border-bottom:1px solid var(--border);margin-bottom:28px}.welcome-number{font-size:68px;color:var(--accent);font-weight:650;line-height:1;letter-spacing:-3px}.welcome-number span{display:block;font-size:13px;font-weight:500;letter-spacing:2px;margin-top:8px;text-align:center;color:var(--muted)}h1{font-size:29px;line-height:1.4;letter-spacing:-.6px;margin:0 0 8px}h2{font-size:18px;line-height:1.7;margin:0 0 14px}h3{font-size:15px;line-height:1.6;margin:24px 0 8px}p{font-size:14px;line-height:1.8;margin:8px 0}.welcome-heading p{margin:0;color:var(--muted)}.rules{padding-left:22px;margin:0 0 30px;color:#536477;font-size:14px;line-height:1.9}.rules li{padding-left:6px;margin:10px 0}.rules strong{color:#263f50;font-weight:600}#start-form{display:grid;grid-template-columns:1fr auto;gap:10px 16px;margin-top:26px}#start-form label{grid-column:1/-1;font-weight:600;font-size:14px}input{padding:13px 14px;border:1px solid #bdcbd3;border-radius:7px;background:white;min-width:0;color:#142439}input::placeholder,textarea::placeholder{color:#95a0ab;font-size:14px}.privacy{color:#87929e;font-size:12px;margin:15px 0 0;line-height:1.8}.session-heading{display:flex;align-items:center;justify-content:space-between;margin:0 0 26px;gap:20px}.session-heading h1{font-size:26px}.session-heading p{color:var(--muted);margin:0}.session-heading>span{font-size:15px;color:var(--accent);font-weight:600;white-space:nowrap}.progress-info{display:flex;justify-content:space-between;font-size:12px;color:var(--muted);gap:20px}progress{appearance:none;display:block;width:100%;height:6px;border:0;border-radius:8px;overflow:hidden;margin:12px 0 28px;background:#e1e8ec}progress::-webkit-progress-bar{background:#e1e8ec}progress::-webkit-progress-value{background:var(--accent)}progress::-moz-progress-bar{background:var(--accent)}.question{padding:30px 32px;margin-bottom:20px}.question-meta{display:flex;align-items:center;gap:14px;color:var(--muted);font-size:13px;margin-bottom:20px}.question-meta strong{font-size:20px;color:var(--accent)}.question-meta span{border-left:1px solid #c3cfd6;padding-left:14px}.question-title{display:block;font-size:20px;font-weight:600;line-height:1.8;margin-bottom:24px}pre{max-width:100%;background:#1d2936;color:#dce8f1;border-radius:7px;overflow:auto;font-size:13px;line-height:1.8;padding:20px;margin:0 0 24px}code{font-family:SFMono-Regular,Consolas,monospace}textarea{display:block;resize:vertical;width:100%;min-height:195px;border:1px solid #c5d0d8;border-radius:7px;padding:16px;font-size:15px;line-height:1.85;color:#223c4a}textarea:focus{border-color:var(--accent)}textarea:disabled{background:#f4f7f8;color:#6d7b86}.answer-hint{font-size:12px;color:#8b97a2;text-align:right;margin:8px 0 0}.answer-actions{display:flex;align-items:center;justify-content:space-between;gap:18px}.answer-actions span{font-size:12px;color:var(--muted)}.status-area{margin:20px 0;display:flex;gap:14px;align-items:center;justify-content:space-between}#status{font-size:13px;color:var(--muted);margin:0}.status-area button{flex-shrink:0}footer{font-size:12px;line-height:1.7;text-align:center;color:#8c98a3;padding:22px 0 30px}.result{scroll-margin-top:100px}.result h1{font-size:48px;font-weight:650;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.3}.result h1 span{font-size:20px;color:var(--muted)}.result-label{font-size:13px;color:var(--muted);margin:0 0 12px}.muted{font-size:12px;color:var(--muted)}.review-item.incorrect{border-color:#dfb2b3}.review-item.pending{border-color:#d8c38f}.review-item.unanswered{border-color:#d3dbe1}.review-item h2{font-size:18px}.submitted-answer{white-space:pre-wrap;overflow-wrap:anywhere;background:#f5f7f9;padding:14px 18px;border-radius:6px}.explanation{border-left:3px solid var(--accent);padding:16px 20px;background:#f1f8f6;margin-top:20px;font-size:13px;line-height:1.8;overflow-wrap:anywhere}.explanation strong{color:#0e7066}.explanation p{font-size:13px}.explanation ul{padding-left:18px}.explanation label{display:block;margin-top:14px}select{padding:8px;margin-top:7px;font-size:13px;border:1px solid #bbcbd2;border-radius:5px;max-width:100%;background:white;color:#233f4d}#grading{text-align:center;padding:56px 30px}#grading p{color:var(--muted)}.grading-indicator{width:30px;height:30px;margin:0 auto 24px;border:3px solid #d6e9e4;border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media(prefers-reduced-motion:reduce){.grading-indicator{animation:none}}dialog{border:1px solid var(--border);border-radius:12px;padding:28px;max-width:440px;width:calc(100% - 32px);color:#142439}dialog::backdrop{background:#14233966}.dialog-actions{display:flex;gap:12px;justify-content:flex-end;margin-top:24px}dialog p{color:var(--muted)}#access-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}#access-form label{width:100%;font-size:14px}#access-token{flex:1;min-width:160px}@media(max-width:700px){.header-inner{padding:0 20px;height:72px}.brand{font-size:20px}.brand span{display:none}.header-actions{gap:16px}main{padding:0 20px;margin-top:28px}.welcome{padding:28px}.welcome-heading{gap:20px}.welcome-number{font-size:56px}.welcome-heading h1{font-size:25px}.question{padding:24px}.question-title{font-size:18px}.timer strong{font-size:23px}.timer{gap:8px}}@media(max-width:480px){.header-inner{padding:0 16px;gap:12px}.brand{font-size:18px}.header-actions{gap:12px}.header-actions .secondary{font-size:12px;padding:7px 9px}.timer{display:block;text-align:center}.timer span{display:block;font-size:10px;line-height:1.3}.timer strong{font-size:22px}main{padding:0 16px;margin-top:22px}.panel{padding:24px 20px}.welcome-heading{align-items:flex-start;gap:18px;padding-bottom:24px;margin-bottom:24px}.welcome-heading h1{font-size:22px}.welcome-heading p{font-size:12px}.welcome-number{font-size:50px}.welcome-number span{font-size:11px}.welcome h2{font-size:16px}.rules{font-size:13px;padding-left:18px}.rules li{margin:12px 0}#start-form{grid-template-columns:1fr}#start-form .primary{margin-top:4px}.session-heading{align-items:flex-start;gap:12px;margin-bottom:22px}.session-heading h1{font-size:21px}.session-heading p{font-size:12px;max-width:200px;overflow-wrap:anywhere}.session-heading>span{font-size:13px;padding-top:5px}.progress-info{font-size:11px}.question-title{font-size:18px}.question-meta{margin-bottom:16px}textarea{min-height:210px;font-size:16px}.answer-actions{flex-direction:column-reverse;align-items:stretch;gap:12px}.answer-actions .primary{width:100%}.answer-actions span{text-align:center;font-size:11px}.status-area{flex-direction:column;align-items:flex-start}.status-area #status{font-size:12px}pre{font-size:12px;padding:16px}.result h1{font-size:40px}.dialog-actions{flex-direction:column-reverse}.privacy{font-size:11px}.explanation{padding:12px 14px}#grading h1{font-size:23px}}

.session-heading>div{min-width:0}#candidate-label{overflow-wrap:anywhere}
