:root{--ink:#17343e;--muted:#657b81;--teal:#067b78;--mint:#d9eeea;--lime:#d5ee81;--line:#dde5e4;--bg:#f3f6f4;--red:#ad373b;--white:#fff}*{box-sizing:border-box}body{margin:0;color:var(--ink);font:15px/1.55 system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg)}button,input,select{font:inherit}button,a,input,select,summary{outline-offset:4px}button{cursor:pointer}a{color:var(--teal)}button:disabled{cursor:not-allowed;opacity:.45}button:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{outline:3px solid #138987}h1,h2,h3,p{margin-top:0}h1{font-size:38px;letter-spacing:-1.3px;line-height:1.17;margin-bottom:14px}h2{font-size:23px;letter-spacing:-.5px;line-height:1.3}h3{font-size:17px;line-height:1.4}small{font-size:12px}.layout{display:flex;min-height:100vh}.sidebar{width:248px;background:var(--white);border-right:1px solid var(--line);padding:34px 23px;position:fixed;inset:0 auto 0 0;display:flex;flex-direction:column}.brand{display:flex;gap:12px;align-items:center;text-decoration:none;color:var(--ink);font-size:13px;font-weight:750;letter-spacing:1px}.brand small{display:block;font-weight:400;letter-spacing:0;color:var(--muted);font-size:11px;margin-top:3px}.brand-mark{display:flex;align-items:center;justify-content:center;width:43px;height:43px;border-radius:12px;background:var(--ink);color:white;letter-spacing:-2px;font-size:23px}.brand-mark span{color:var(--lime)}.side-label{font-size:10px;color:var(--muted);letter-spacing:1.3px;margin:48px 10px 12px}nav{display:flex;flex-direction:column;gap:7px}nav a{padding:12px;border-radius:8px;text-decoration:none;color:var(--muted);font-size:13px;font-weight:550;display:flex;gap:12px;align-items:center}nav a span{font-size:19px;width:20px;text-align:center}nav a.active{background:var(--mint);color:#075f5e}nav a:hover{background:#edf3ef}.side-bottom{margin-top:auto;padding:24px 10px 0}.side-bottom p{font-size:21px;line-height:1.3;margin:16px 0 9px;font-weight:600}.side-bottom small{color:var(--muted)}.main-shell{margin-left:248px;width:calc(100% - 248px)}.topbar{height:79px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line);padding:0 44px;background:#ffffff80;font-size:13px;color:var(--muted)}.topbar b{color:var(--ink);margin-left:7px}.top-note{font-size:12px;display:flex;align-items:center;gap:8px}.top-note i{width:7px;height:7px;border-radius:50%;background:var(--teal)}main{max-width:1260px;margin:auto;padding:42px 44px 24px}footer{max-width:1260px;margin:auto;padding:22px 44px 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.letter{background:var(--red);color:white;border-color:var(--red)}.choice-status{margin-left:auto;font-size:11px;font-weight:650;flex-shrink:0}.quiz-bottom{border-top:1px solid var(--line);padding-top:22px;margin-top:24px;display:flex;justify-content:space-between;align-items:center;gap:10px}.feedback{margin-top:20px;border:1px solid #b8d7c9;border-radius:9px;background:#eff7f2;padding:18px;font-size:13px}.feedback.error{border-color:#e9c3be;background:#fff5f2}.feedback b{display:block;margin-bottom:8px}.feedback p{margin:0;color:#506b66}.feedback.error p{color:#795e58}.session-side .card{padding:20px;margin-bottom:15px}.session-side h3{font-size:14px}.mini-score{font-size:29px;font-weight:650;letter-spacing:-1px;margin:8px 0}.muted{color:var(--muted)}.tiny{font-size:11px}.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin:25px 0}input,select{border:1px solid var(--line);background:white;border-radius:8px;color:var(--ink);padding:12px 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0 0;color:var(--muted)}.result-hero{display:flex;align-items:center;justify-content:space-between;gap:25px;background:var(--ink);color:white;border-radius:14px;padding:30px;margin:22px 0}.result-hero h2{margin-bottom:8px}.result-hero p{color:#c7d7d6;margin:0}.grade{font-size:62px;line-height:1;letter-spacing:-3px;color:var(--lime);font-weight:650;white-space:nowrap}.grade small{font-size:22px;letter-spacing:0;color:#c7d7d6}.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;font-size:13px}th{text-align:left;padding:13px 10px;color:var(--muted);font-size:11px;border-bottom:1px solid var(--line)}td{padding:12px 10px;border-bottom:1px solid #eef2ef}td:last-child{white-space:nowrap}.result-ok{color:#167054;font-weight:650}.result-no{color:var(--red);font-weight:650}.review{margin:24px 0}.review>summary{font-weight:600;cursor:pointer;padding:15px 0}.review-item{padding:20px;margin-bottom:12px}.review-item h3{font-size:15px}.review-item 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@media(min-width:1400px){main{padding-top:52px}.hero{padding:40px}.hero h2{font-size:36px}}
@media(max-width:1100px){.sidebar{width:218px;padding:30px 17px}.main-shell{margin-left:218px;width:calc(100% - 218px)}main{padding:30px 26px}.topbar{padding:0 26px}footer{padding:22px 26px}.session-grid{grid-template-columns:minmax(0,1fr)}.session-side{display:grid;grid-template-columns:1fr 1fr;gap:14px}.hero{grid-template-columns:1.6fr 1fr}.orbit{width:170px;height:170px}.orbit-inner{width:125px;height:125px}.orbit-tag.one{right:-10px}.orbit-tag.two{left:-20px}.stat{padding:16px 15px;gap:10px}.stat-num{font-size:29px}}
@media(max-width:780px){.layout{display:block}.sidebar{position:static;width:100%;padding:18px 20px;border-right:0;border-bottom:1px solid var(--line)}.brand{font-size:11px}.brand-mark{width:33px;height:33px;font-size:19px}.side-label,.side-bottom{display:none}nav{flex-direction:row;margin-top:18px;gap:4px;overflow:auto}nav a{padding:9px;font-size:11px;white-space:nowrap;gap:5px}nav a span{display:none}.main-shell{margin:0;width:100%}.topbar{height:54px;padding:0 20px;font-size:11px}.top-note{font-size:10px}main{padding:28px 20px 18px}footer{padding:15px 20px}h1{font-size:29px}.headrow{gap:10px}.headrow>.pill{display:none}.hero{grid-template-columns:1fr;padding:25px}.hero-visual{display:none}.hero h2{font-size:28px}.stats{gap:8px;margin:22px 0}.stat{display:block;padding:14px 12px}.stat-num{font-size:30px;display:block;margin-bottom:6px}.stat b,.stat small{font-size:10px}.below{grid-template-columns:1fr}.quizcard{padding:22px}.quizcard h2{font-size:20px}.qmeta{align-items:flex-start}.choice{font-size:13px}.choice-status{font-size:10px}.quiz-bottom{align-items:flex-start}.quiz-bottom>.tiny{max-width:120px}.session-side{grid-template-columns:1fr}.result-hero{align-items:flex-start;flex-direction:column;padding:25px}.grade{font-size:54px}.toolbar{flex-direction:column}.bank-group>summary{padding:16px}.bank-group>summary b{font-size:13px}.bank-group>summary .muted{font-size:10px}.history-row{flex-wrap:wrap}.card{padding:20px}.btn{padding:12px 16px}}
@media print{.sidebar,.topbar,footer,.actions,.btn,.toolbar{display:none!important}.main-shell{margin:0;width:100%}main{padding:0}body{background:white}.card,.review-item{break-inside:avoid}details.review>div{display:block}.result-hero{background:white;color:var(--ink);border:1px solid var(--line)}.grade{color:var(--ink)}.result-hero p{color:var(--muted)}}