:root{color-scheme:light;--navy:#0c2340;--ink:#152c45;--muted:#51647a;--teal:#007e83;--aqua:#b4f3eb;--line:#d8e2ec;--paper:#f4f7fb}*{box-sizing:border-box}body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Segoe UI",Arial,sans-serif;font-size:16px;line-height:1.55}.top{padding:24px max(24px,calc((100vw - 1100px)/2));display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);background:white;gap:20px}.brand{display:flex;gap:13px;align-items:center;color:var(--navy);text-decoration:none;font-size:20px;font-weight:750;line-height:1.3}.mark{display:grid;place-content:center;font-family:monospace;font-size:25px;width:44px;height:44px;background:var(--navy);color:white;border-radius:10px;position:relative}.mark span{position:absolute;color:#7be0df;right:6px;top:3px}.brand-sub{display:block;letter-spacing:.12em;font-weight:600;font-size:12px;margin-top:4px;color:var(--muted)}.exam-tag{font-size:12px;letter-spacing:.16em;font-weight:700;color:var(--muted)}main{max-width:1000px;margin:0 auto;padding:54px 24px 72px;min-height:calc(100vh - 180px)}.eyebrow{font-size:13px;letter-spacing:.12em;font-weight:750;color:var(--teal)}h1{font-size:clamp(42px,6.5vw,70px);line-height:1.07;letter-spacing:-.045em;margin:20px 0 22px;font-weight:750}h1 span{color:var(--teal)}.lead{font-size:19px;max-width:610px;color:var(--muted);margin-bottom:26px}.facts{display:flex;gap:44px;margin:30px 0 34px}.facts>div+div{border-left:1px solid var(--line);padding-left:44px}.facts strong{font-size:42px;letter-spacing:-.04em;line-height:1.1}.facts strong span{font-size:18px;letter-spacing:0;margin-left:7px;color:var(--muted);font-weight:500}.facts p{color:var(--muted);font-size:14px;margin:6px 0 0}.setup-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:60px;border-top:1px solid var(--line);padding-top:28px}h2{font-size:21px;letter-spacing:-.025em;margin:0 0 16px}ol{padding-left:21px;margin:0;color:var(--muted)}li{padding-left:7px;margin-bottom:12px}.muted{font-size:14px;color:var(--muted)}label{display:block;font-size:14px;font-weight:650;margin-bottom:8px}input{width:100%;font:inherit;background:white;color:var(--ink);border:1px solid #b1c2d2;border-radius:8px;padding:12px 14px;margin:0 0 20px}button{font:inherit;cursor:pointer}button:disabled{opacity:.6;cursor:wait}.primary{display:flex;align-items:center;justify-content:space-between;gap:24px;background:var(--navy);color:white;border:0;border-radius:8px;padding:15px 19px;font-weight:650;width:100%;text-align:left}.primary:hover{background:#174367}.primary span{font-size:21px;color:#a6efe6}.form-note{text-align:center;font-size:13px;color:var(--muted);margin:10px 0}input:focus-visible,button:focus-visible,a:focus-visible{outline:3px solid var(--teal);outline-offset:4px}.exam-head{display:flex;align-items:center;justify-content:space-between;gap:24px}.student-line{font-size:14px;color:var(--muted);margin:7px 0}.timer{text-align:center;min-width:100px;color:var(--teal)}.timer span{font-size:48px;font-weight:750;line-height:1;font-variant-numeric:tabular-nums}.timer small{display:block;font-size:12px;margin-top:5px}.timer.urgent{color:#b43321}.time-track{height:5px;background:#dce6ee;border-radius:9px;margin:26px 0 33px;overflow:hidden}#time-fill{height:100%;width:100%;background:var(--teal);transition:width .15s linear}.question-top{display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:13px;font-weight:700;letter-spacing:.06em}#question{font-size:clamp(25px,3.6vw,38px);line-height:1.3;letter-spacing:-.025em;margin:21px 0 28px;max-width:900px;outline:none}fieldset{border:0;padding:0;margin:0;display:grid;gap:12px}.choice{display:flex;align-items:center;gap:16px;border:1px solid #c5d2df;border-radius:10px;padding:16px 18px;background:white;cursor:pointer;margin:0;font-size:17px;font-weight:500;min-height:66px}.choice:hover{border-color:var(--teal)}.choice:has(input:checked){border:2px solid var(--teal);padding:15px 17px;background:#edfafa}.choice:has(input:focus-visible){outline:3px solid var(--teal);outline-offset:3px}.choice input{width:19px;height:19px;margin:0;accent-color:var(--teal);flex-shrink:0}.letter{font-size:14px;font-weight:750;color:var(--teal);min-width:14px}.exam-foot{display:flex;justify-content:space-between;gap:18px;font-size:14px;color:var(--muted);margin-top:21px}.exam-foot b{font-variant-numeric:tabular-nums}.overall{margin-top:45px;display:flex;align-items:center;gap:18px;font-size:13px;color:var(--muted)}progress{height:7px;flex:1;min-width:0;appearance:none;border:0;border-radius:5px;overflow:hidden}progress::-webkit-progress-bar{background:#dce6ee}progress::-webkit-progress-value{background:var(--navy)}progress::-moz-progress-bar{background:var(--navy)}.finish-panel{max-width:550px;padding:28px;border:1px solid var(--line);background:white;border-radius:12px}.finish-panel p{color:var(--muted)}.finish-panel .primary{margin-top:22px}footer{max-width:1100px;margin:auto;border-top:1px solid var(--line);padding:20px 24px;display:flex;justify-content:space-between;gap:20px;font-size:12px;color:var(--muted)}footer span:first-child{font-weight:750}.loading{padding:60px 0;text-align:center}#notice{padding:15px 18px;border:1px solid #d68a22;color:#714407;background:#fff6e6;border-radius:8px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}[hidden]{display:none!important}@media(max-width:650px){.top{padding:18px 20px}.exam-tag{display:none}main{padding:32px 20px 45px}.setup-grid{grid-template-columns:1fr;gap:28px}.facts{gap:32px}.facts>div+div{padding-left:32px}.brand-sub{font-size:10px}.exam-head .eyebrow{font-size:11px}.timer{min-width:75px}.timer span{font-size:40px}.exam-foot{flex-direction:column;gap:5px}.choice{font-size:16px;padding:14px;gap:12px}.choice:has(input:checked){padding:13px}.overall{margin-top:30px}footer{flex-direction:column;gap:5px}.finish-panel{padding:22px}.question-top{font-size:12px}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}.teacher-toolbar{display:flex;justify-content:space-between;align-items:center;gap:20px;margin:30px 0 18px}.teacher-actions{display:flex;gap:12px;align-items:center}.teacher-actions .primary{font-size:14px;text-decoration:none;width:auto}button:not(.primary){border:1px solid #b1c2d2;background:white;border-radius:7px;padding:10px 14px;color:var(--ink)}.table-wrap{overflow:auto;background:white;border:1px solid var(--line);border-radius:10px}table{width:100%;border-collapse:collapse;font-size:14px;text-align:left}th{font-weight:650;color:var(--muted);background:#eaf0f6}td,th{padding:14px;border-bottom:1px solid var(--line)}td button{white-space:nowrap}.pagination{display:flex;justify-content:flex-end;align-items:center;gap:15px;margin:20px 0;font-size:14px}dialog{border:1px solid var(--line);border-radius:14px;width:min(850px,95vw);max-height:85vh;padding:26px;color:var(--ink)}dialog::backdrop{background:#0c2340aa}.dialog-head{display:flex;justify-content:space-between;gap:16px;align-items:center}.dialog-head h2{margin:0}.answer-item{border-top:1px solid var(--line);padding:15px 0}.answer-item p{margin:0 0 8px}.answer-item strong{color:var(--teal)}@media(max-width:650px){.teacher-toolbar,.teacher-actions{flex-direction:column;align-items:stretch}.teacher-toolbar{gap:15px}.teacher-actions .primary{justify-content:center}table{min-width:760px}dialog{padding:18px}.top>.brand{flex-direction:column;align-items:flex-start;gap:0}}.student-navigation{display:flex;justify-content:space-between;align-items:center;gap:14px;margin-top:27px}.student-navigation .primary{width:auto;font-size:14px}.student-navigation button{font-size:14px}#submit-dialog{max-width:490px}#submit-dialog .dialog-actions{display:flex;gap:15px;justify-content:flex-end;margin-top:22px}#submit-dialog .primary{width:auto}#submit-error{color:#a02c1b}#intro-instructions{white-space:pre-line}@media(max-width:650px){.student-navigation{flex-wrap:wrap;gap:10px}.student-navigation button{flex:1;padding:11px;white-space:nowrap}#submit-dialog .dialog-actions{flex-direction:column}#submit-dialog .primary{width:100%;justify-content:center}}
.top .brand{font-size:16px;line-height:1.4}.top .brand .mark{flex-shrink:0}.top .brand>span:last-child{min-width:0;overflow-wrap:anywhere}