:root{--black:#090909;--ink:#171717;--orange:#f37021;--orange-deep:#c94d12;--paper:#f4f5f7;--white:#fff;--line:#e2e5e9;--muted:#657080;--good:#16803b;--bad:#b42318;--font:'Be Vietnam Pro',system-ui,sans-serif;--display:'Oswald','Arial Narrow',sans-serif}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;overflow-x:hidden;background:var(--paper);color:var(--ink);font-family:var(--font);font-size:15px}button,input,textarea{font:inherit}button{cursor:pointer}.hidden{display:none!important}
.topbar{height:66px;background:#090909;color:#fff;display:flex;align-items:center;padding:0 28px;position:sticky;top:0;z-index:30;border-bottom:2px solid var(--orange)}
.brand{font:700 22px var(--display);letter-spacing:.08em}.brand span{color:var(--orange)}.top-meta{margin-left:auto;display:flex;align-items:center;gap:22px;font-size:12px}.auth-status{max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#b9bec6}.auth-status.ready{color:#9ae6b4}.auth-status.error{color:#ffb4a8}.time{font:600 17px var(--display);letter-spacing:.04em;color:#fff}.time.low{color:#ffad7a}.progress-mini{width:150px}.progress-mini div{height:4px;background:#313131;margin-top:5px}.progress-mini i{display:block;height:100%;width:0;background:var(--orange);transition:width .25s}
.hero{min-height:520px;color:#fff;display:grid;align-items:end;background:linear-gradient(90deg,rgba(0,0,0,.94) 0%,rgba(0,0,0,.76) 48%,rgba(0,0,0,.18) 100%),url('pt-chuyen-mon/assets/spartan/site/pt-coach.jpg') center 32%/cover no-repeat}.hero-inner{width:min(1180px,calc(100% - 48px));margin:0 auto;padding:80px 0 68px}.eyebrow{font:600 12px var(--display);letter-spacing:.18em;text-transform:uppercase;color:#ff9a5a;margin-bottom:14px}.hero h1{font:700 clamp(44px,7vw,82px)/1.02 var(--display);letter-spacing:.03em;text-transform:uppercase;max-width:760px;margin:0}.hero p{font-size:17px;line-height:1.75;max-width:650px;color:#ececec;margin:20px 0 26px}.hero-stats{display:flex;gap:1px;max-width:720px;background:#555;border:1px solid #555}.hero-stat{flex:1;background:rgba(8,8,8,.88);padding:16px}.hero-stat b{display:block;font:700 26px var(--display);color:var(--orange)}.hero-stat span{font-size:11px;color:#d2d2d2;text-transform:uppercase}.hero-actions{display:flex;gap:10px;margin-top:26px}.btn{border:0;background:var(--orange);color:#fff;padding:12px 18px;font:600 13px var(--display);letter-spacing:.07em;text-transform:uppercase}.btn:hover{background:var(--orange-deep)}.btn.ghost{background:transparent;border:1px solid #777}.btn.ghost:hover{border-color:#fff}.btn.dark{background:#111}.btn.light{background:#fff;color:#111;border:1px solid var(--line)}.btn:disabled{cursor:not-allowed;opacity:.4}
.overview{width:min(1180px,calc(100% - 48px));margin:0 auto;padding:48px 0 64px}.section-head{display:flex;justify-content:space-between;gap:24px;align-items:end;margin-bottom:22px}.section-head h2{font:700 34px/1.15 var(--display);letter-spacing:.03em;text-transform:uppercase;margin:0}.section-head p{max-width:580px;line-height:1.7;color:var(--muted);margin:0}.domain-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:10px}.domain-card{background:#fff;border-top:4px solid var(--domain);padding:18px;min-height:145px}.domain-card .num{font:700 29px var(--display);color:var(--domain)}.domain-card h3{font:600 16px/1.35 var(--display);text-transform:uppercase;margin:9px 0 5px}.domain-card p{font-size:12px;line-height:1.55;color:var(--muted);margin:0}.rules{display:grid;grid-template-columns:1.2fr .8fr;gap:16px;margin-top:18px}.rule-block{background:#111;color:#fff;padding:24px}.rule-block h3,.score-block h3{font:600 20px var(--display);text-transform:uppercase;margin:0 0 12px}.rule-block ul{margin:0;padding-left:20px;color:#ddd;line-height:1.9}.score-block{background:#fff;border:1px solid var(--line);padding:23px}.score-row{display:flex;justify-content:space-between;border-bottom:1px solid var(--line);padding:9px 0;font-size:13px}.score-row:last-child{border:0}.score-row b{color:var(--orange)}
.history-panel{margin-top:18px;background:#fff;border:1px solid var(--line);padding:22px}.history-head{display:flex;align-items:end;justify-content:space-between;gap:20px;border-bottom:1px solid var(--line);padding-bottom:13px}.history-head .eyebrow{margin:0;color:var(--orange)}.history-head h2{font:600 23px var(--display);text-transform:uppercase;margin:3px 0 0}.history-head>span{font-size:12px;color:var(--muted)}.history-list{display:grid;gap:8px;margin-top:12px}.history-row{display:grid;grid-template-columns:62px 1fr repeat(3,110px);gap:12px;align-items:center;border:1px solid var(--line);padding:11px 13px}.history-row .attempt{font:700 16px var(--display);color:var(--orange)}.history-row strong{display:block;font-size:13px}.history-row small,.history-empty{color:var(--muted);font-size:11px}.history-metric span{display:block;font-size:10px;color:var(--muted);text-transform:uppercase}.history-metric b{font:600 15px var(--display)}
.exam-shell{display:grid;grid-template-columns:258px minmax(0,1fr);min-height:calc(100vh - 66px)}.side{background:#101010;color:#fff;padding:24px 16px;position:sticky;top:66px;height:calc(100vh - 66px);overflow:auto}.side-label{font:600 10px var(--display);letter-spacing:.14em;color:#9ea4ad;text-transform:uppercase;margin:8px 10px 12px}.side button{width:100%;display:grid;grid-template-columns:34px 1fr auto;gap:8px;align-items:center;text-align:left;border:0;background:transparent;color:#ccc;padding:11px 10px;margin-bottom:4px}.side button:hover,.side button.active{background:#242424;color:#fff}.side button.active{box-shadow:inset 3px 0 var(--orange)}.side .n{font:700 11px var(--display);color:var(--orange)}.side .count{font-size:10px;color:#9198a3}.side-summary{border-top:1px solid #303030;margin-top:18px;padding:18px 10px}.side-summary div{display:flex;justify-content:space-between;font-size:11px;color:#b9bec6;margin:8px 0}.side-summary b{color:#fff}
.exam-main{padding:38px clamp(22px,5vw,64px) 90px;max-width:1050px}.exam-intro{border-left:4px solid var(--orange);padding-left:18px;margin-bottom:30px}.exam-intro .step{font:600 11px var(--display);text-transform:uppercase;color:var(--orange);letter-spacing:.13em}.exam-intro h2{font:700 38px/1.15 var(--display);letter-spacing:.03em;text-transform:uppercase;margin:6px 0 8px}.exam-intro p{line-height:1.7;color:var(--muted);margin:0}.question-card{background:#fff;border:1px solid var(--line);padding:22px;margin:12px 0}.q-head{display:flex;align-items:center;gap:9px;margin-bottom:12px}.q-number{font:700 12px var(--display);color:var(--orange)}.difficulty{font-size:10px;color:#6b7280;background:#f1f2f4;padding:4px 7px;text-transform:uppercase}.question-card h3{font-size:15px;line-height:1.65;margin:0 0 13px}.option{display:grid;grid-template-columns:18px 20px 1fr;gap:8px;padding:11px 12px;border:1px solid var(--line);margin:7px 0;cursor:pointer;line-height:1.55}.option:hover{border-color:#f7a06a;background:#fffaf6}.option input{margin-top:4px;accent-color:var(--orange)}.option.correct{border-color:#73b987;background:#effaf2}.option.wrong{border-color:#e39c96;background:#fff1f0}.explanation{display:none;border-left:3px solid var(--orange);padding:10px 13px;background:#fff7f1;font-size:13px;line-height:1.6;margin-top:12px}.graded .explanation{display:block}.exam-nav{display:flex;justify-content:space-between;gap:12px;margin-top:22px}.essay-card{background:#fff;border:1px solid var(--line);padding:23px;margin:14px 0}.essay-card h3{font:600 20px var(--display);text-transform:uppercase;margin:0 0 10px}.essay-card .prompt{line-height:1.75}.output{background:#f4f5f7;padding:12px;font-size:13px;line-height:1.6;border-left:3px solid #111}.essay-card textarea{width:100%;min-height:180px;border:1px solid #cfd3d8;padding:14px;line-height:1.7;resize:vertical;margin-top:12px}.essay-foot{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;margin-top:5px}.rubric{display:grid;grid-template-columns:repeat(5,1fr);gap:6px;margin-top:14px}.criterion{border:1px solid var(--line);padding:10px;font-size:11px;line-height:1.5}.criterion b{display:block;color:var(--orange);font:700 13px var(--display);margin-bottom:4px}.submit-panel{background:#111;color:#fff;padding:26px;margin-top:24px;display:flex;align-items:center;justify-content:space-between;gap:20px}.submit-panel h3{font:600 23px var(--display);text-transform:uppercase;margin:0 0 5px}.submit-panel p{font-size:12px;color:#ccc;margin:0}.submit-panel .btn{min-width:190px}
.results{width:min(1180px,calc(100% - 48px));margin:0 auto;padding:48px 0 80px}.result-hero{background:#111;color:#fff;padding:34px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}.result-hero h2{font:700 38px var(--display);text-transform:uppercase;margin:4px 0}.result-hero p{color:#c7c7c7;line-height:1.65}.score-ring{width:150px;height:150px;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--orange) var(--score),#313131 0);position:relative}.score-ring:after{content:'';position:absolute;inset:12px;background:#111;border-radius:50%}.score-ring div{position:relative;z-index:1;text-align:center}.score-ring b{font:700 42px var(--display)}.score-ring span{display:block;font-size:10px;color:#bbb;text-transform:uppercase}.result-summary-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:16px}.result-summary-grid article{background:#fff;border-top:3px solid var(--orange);padding:17px}.result-summary-grid span{font:600 11px var(--display);text-transform:uppercase;color:var(--muted)}.result-summary-grid b{display:block;font:700 27px var(--display);margin:4px 0}.result-summary-grid p{font-size:11px;color:var(--muted);margin:0}.result-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}.result-panel{background:#fff;border:1px solid var(--line);padding:24px}.result-panel h3{font:600 21px var(--display);text-transform:uppercase;margin:0 0 18px}.result-guidance{margin-top:16px}.domain-result{display:grid;grid-template-columns:135px 1fr 45px;gap:10px;align-items:center;margin:12px 0;font-size:12px}.bar{height:8px;background:#eceef1}.bar i{display:block;height:100%;background:var(--domain);width:var(--width)}.domain-result b{text-align:right}.recommendation{padding:16px;border-left:4px solid var(--orange);background:#fff5ed;line-height:1.65}.radar{width:100%;height:270px}.legend-note{font-size:11px;color:var(--muted);line-height:1.6}.result-actions{display:flex;gap:10px;margin-top:18px;flex-wrap:wrap}.result-history{margin-top:16px}.footer{background:#0b0b0b;color:#a9a9a9;padding:24px;text-align:center;font-size:11px}.preview-badge{position:fixed;right:14px;bottom:14px;background:#fff3ea;color:#a9410d;border:1px solid #f7ae7f;padding:8px 11px;font:600 10px var(--display);letter-spacing:.08em;text-transform:uppercase;z-index:40}
.submit-panel .submit-message{color:#ffb27e;margin-top:8px}.submit-panel .btn:disabled{opacity:.65;cursor:wait}
.embedded .topbar,.embedded .footer{display:none}.embedded .hero{min-height:500px}.embedded .preview-badge{display:none}
@media(max-width:900px){.domain-grid{grid-template-columns:repeat(2,1fr)}.rules,.result-grid{grid-template-columns:1fr}.result-summary-grid{grid-template-columns:1fr}.history-row{grid-template-columns:54px 1fr 90px}.history-row .history-metric:nth-last-child(-n+2){display:none}.exam-shell{grid-template-columns:1fr}.side{position:sticky;top:66px;height:auto;display:flex;overflow:auto;padding:8px;z-index:20}.side-label,.side-summary{display:none}.side button{min-width:180px;margin:0}.rubric{grid-template-columns:1fr 1fr}.result-hero{grid-template-columns:1fr}.score-ring{width:120px;height:120px}.hero{min-height:560px}}
@media(max-width:600px){.topbar{padding:0 14px}.brand{font-size:18px}.top-meta{gap:8px}.auth-status{display:none}.top-meta .progress-mini{display:none}.time{font-size:14px}.hero-inner,.overview,.results{width:calc(100% - 40px);max-width:calc(100vw - 40px)}.hero .eyebrow{max-width:100%;font-size:10px;line-height:1.6}.hero h1{max-width:100%;font-size:36px;line-height:1.1}.hero p{width:calc(100% - 28px);max-width:calc(100vw - 68px);font-size:14px;line-height:1.75}.hero-stats{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);max-width:100%}.hero-stat{min-width:0;padding:14px}.hero-stat span{font-size:9px;overflow-wrap:anywhere}.hero-actions{flex-wrap:wrap}.section-head{display:block}.section-head p{width:calc(100% - 24px);margin-top:10px}.domain-grid{grid-template-columns:1fr}.history-head{display:block}.history-head>span{display:block;margin-top:8px}.exam-main{padding:26px 14px 70px}.exam-intro h2{font-size:30px}.question-card,.essay-card{padding:17px}.rubric{grid-template-columns:1fr}.submit-panel{display:block}.submit-panel .btn{width:100%;margin-top:16px}.result-hero{padding:24px}.result-hero h2{font-size:29px}.domain-result{grid-template-columns:104px 1fr 36px}.preview-badge{display:none}}
@media print{body.print-results{background:#fff}body.print-results #landing,body.print-results #exam,body.print-results .topbar,body.print-results .result-actions,body.print-results .preview-badge,body.print-results .footer{display:none!important}body.print-results #results{display:block!important;width:100%;padding:0}body.print-results .result-hero,body.print-results .result-panel,body.print-results .history-panel,body.print-results .result-summary-grid article{break-inside:avoid;box-shadow:none}.result-hero{-webkit-print-color-adjust:exact;print-color-adjust:exact}}