@import "https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@500;600&display=swap";:root{color:#e8edf8;font-synthesis:none;text-rendering:optimizelegibility;--panel:#101522c7;--panel-solid:#101522;--border:#ffffff17;--muted:#8f9bb3;--text:#e8edf8;--blue:#7c9cff;--green:#6ee7b7;--red:#fda4af;--amber:#fbbf24;background:radial-gradient(circle at 10% -10%,#476cff2e,#0000 34rem),radial-gradient(circle at 96% 12%,#10b9811f,#0000 30rem),#080b12;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}*{box-sizing:border-box}body{min-width:320px;min-height:100vh;margin:0}button{font:inherit}button:focus-visible{outline-offset:2px;outline:2px solid #9ab0ff}.app-shell{width:min(1440px,100% - 40px);margin:0 auto;padding:40px 0 28px}.topbar{justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:28px;display:flex}.eyebrow{letter-spacing:.12em;color:#8190ad;font:600 11px/1.4 JetBrains Mono,monospace}h1{letter-spacing:-.045em;margin:7px 0 10px;font-size:clamp(34px,5vw,58px);line-height:.98}.subtitle{color:var(--muted);margin:0;font-size:15px}.subtitle strong{color:#cbd5e8}.header-actions,.answer-actions,.mock-actions{flex-wrap:wrap;align-items:center;gap:10px;display:flex}.primary,.ghost,.text-button{cursor:pointer;border:1px solid #0000;border-radius:10px;transition:all .18s}.primary{color:#0b1020;background:#e9efff;padding:12px 18px;font-weight:800}.primary:hover{background:#fff;transform:translateY(-1px)}.primary:disabled{opacity:.35;cursor:not-allowed;transform:none}.primary.small{padding:10px 14px}.ghost{color:#c7d0e2;border-color:var(--border);background:#ffffff09;padding:10px 14px}.ghost:hover{background:#ffffff12}.domain-tabs{grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:14px;display:grid}.domain-card{text-align:left;border:1px solid var(--border);min-height:116px;color:var(--text);cursor:pointer;background:#ffffff06;border-radius:16px;padding:18px;transition:all .2s;position:relative;overflow:hidden}.domain-card:after{content:"";background:0 0;height:2px;position:absolute;inset:auto 0 0}.domain-card:hover{border-color:#ffffff2b;transform:translateY(-1px)}.domain-card.active{background:#7c9cff14;border-color:#7c9cff52}.domain-card.active:after{background:var(--blue)}.domain-card span{letter-spacing:-.025em;font-size:20px;font-weight:800;display:block}.domain-card small{color:var(--muted);margin-top:6px;display:block}.domain-card em{color:#66728b;margin-top:15px;font:500 11px/1.4 JetBrains Mono,monospace;display:block}.control-row{justify-content:space-between;align-items:center;gap:16px;margin-bottom:18px;display:flex}.segmented{border:1px solid var(--border);background:#ffffff06;border-radius:12px;padding:4px;display:inline-flex}.segmented button{color:#8995ab;cursor:pointer;background:0 0;border:0;border-radius:8px;padding:8px 13px;font-size:13px;font-weight:700}.segmented button.active{color:#f4f7ff;background:#1d2639}.stats-strip{color:#717e96;gap:18px;font:500 12px/1.3 JetBrains Mono,monospace;display:flex}.stats-strip b{color:#c7d0e2}.coverage-panel{background:linear-gradient(#7c9cff0f,#ffffff05);border:1px solid #7c9cff3d;border-radius:18px;margin-bottom:18px;padding:20px}.coverage-head{justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:15px;display:flex}.coverage-head h2{margin:4px 0 0;font-size:19px}.coverage-head p{max-width:600px;color:var(--muted);margin:0;font-size:13px}.coverage-grid{grid-template-columns:repeat(5,1fr);gap:7px;display:grid}.coverage-item{color:#aeb9cc;background:#0000002e;border-radius:8px;justify-content:space-between;gap:12px;padding:9px 10px;font-size:11px;display:flex}.coverage-item b{color:var(--green);font-family:JetBrains Mono,monospace}.evidence-note{border-top:1px solid var(--border);color:#8f9bb3;margin-top:13px;padding-top:13px;font-size:12px}.evidence-note b{color:#cbd5e8}.study-layout{grid-template-columns:minmax(0,1fr) 310px;align-items:start;gap:18px;display:grid}.question-card{border:1px solid var(--border);background:linear-gradient(#ffffff06,#0000 25%),#0c101adb;border-radius:20px;min-height:610px;padding:clamp(22px,4vw,44px);box-shadow:0 22px 80px #00000038}.question-meta{color:#6f7c94;text-transform:uppercase;letter-spacing:.06em;flex-wrap:wrap;align-items:center;gap:10px;font:600 10px/1.3 JetBrains Mono,monospace;display:flex}.question-meta>span:not(:last-child):after{content:"·";color:#394359;margin-left:10px}.difficulty{border:1px solid var(--border);border-radius:6px;padding:5px 7px}.difficulty.core{color:#8fe5c4}.difficulty.tricky{color:#ffd26a}.difficulty.brutal{color:#ff97a9}.mock-counter{color:#a9b6ce;margin-left:auto}.prompt{letter-spacing:-.027em;max-width:1000px;margin:24px 0 28px;font-size:clamp(22px,3vw,34px);font-weight:750;line-height:1.3}mark{color:#ffd667;background:#fbbf2426;border-bottom:1px solid #fbbf248c;padding:0 2px}.options{gap:9px;display:grid}.option{text-align:left;border:1px solid var(--border);color:#cfd8e9;cursor:pointer;background:#ffffff06;border-radius:12px;grid-template-columns:34px minmax(0,1fr) auto;align-items:center;gap:12px;width:100%;padding:14px 15px;transition:all .14s;display:grid}.option:hover{background:#ffffff0b;border-color:#ffffff29}.option-letter{color:#8e9ab0;background:#ffffff0d;border-radius:8px;place-items:center;width:30px;height:30px;font:700 12px/1 JetBrains Mono,monospace;display:grid}.option.selected{background:#7c9cff14;border-color:#7c9cff8c}.option.correct{background:#6ee7b712;border-color:#6ee7b780}.option.wrong{background:#fda4af12;border-color:#fda4af7a}.option.correct .option-letter{color:var(--green)}.option.wrong .option-letter{color:var(--red)}.check{color:var(--green);font-weight:900}.answer-actions{margin-top:22px}.result{border:1px solid var(--border);border-radius:14px;margin-top:22px;padding:18px}.correct-result{background:#6ee7b70b;border-color:#6ee7b738}.wrong-result{background:#fda4af0b;border-color:#fda4af33}.result-head{justify-content:space-between;align-items:center;gap:16px;display:flex}.result-head strong{font-size:18px}.result-head span{color:#6e7b93;text-align:right;font-size:11px}.result p{color:#b7c1d4;line-height:1.65}.trap-box{color:#bfc8d9;background:#fbbf240e;border-left:2px solid #fbbf24b3;grid-template-columns:90px 1fr;gap:12px;margin:14px 0 18px;padding:12px 14px;font-size:13px;line-height:1.55;display:grid}.trap-box b{color:#ffd667}.side-panel{gap:12px;display:grid}.panel-block{border:1px solid var(--border);background:#0e121dad;border-radius:16px;padding:18px}.panel-block h3{margin:6px 0 13px;font-size:16px}.panel-block p{margin:8px 0 0;font-size:12px;line-height:1.55}.panel-block.compact p{color:#9ca8be}.muted{color:var(--muted)}.trap-chips{flex-wrap:wrap;gap:6px;display:flex}.trap-chips span{color:#d8bd72;background:#fbbf2412;border:1px solid #fbbf2424;border-radius:6px;padding:5px 7px;font:600 10px/1.2 JetBrains Mono,monospace}.weak-list{gap:7px;display:grid}.weak-list>div{color:#aeb9cd;border-bottom:1px solid #ffffff0e;justify-content:space-between;gap:12px;padding:9px 0;font-size:12px;display:flex}.weak-list b{color:#ffacb8;font-family:JetBrains Mono,monospace}.mock-finished{align-content:center;justify-items:start;min-height:430px;display:grid}.mock-finished h2{letter-spacing:-.06em;margin:8px 0;font-size:clamp(48px,8vw,86px);line-height:1}.mock-finished p{max-width:650px;color:var(--muted);line-height:1.6}footer{color:#58647b;justify-content:space-between;gap:20px;padding:20px 2px 0;font-size:11px;display:flex}.text-button{color:#66738a;background:0 0;padding:0}.text-button:hover{color:#c6cfdf}@media (width<=980px){.study-layout{grid-template-columns:1fr}.side-panel,.coverage-grid{grid-template-columns:repeat(3,1fr)}}@media (width<=760px){.app-shell{width:min(100% - 24px,1440px);padding-top:24px}.topbar{flex-direction:column;align-items:flex-start}.domain-tabs{grid-template-columns:1fr}.domain-card{min-height:88px}.control-row{flex-direction:column;align-items:flex-start}.stats-strip{flex-wrap:wrap;gap:9px 14px}.question-card{min-height:auto;padding:20px}.side-panel{grid-template-columns:1fr}.coverage-head{flex-direction:column;align-items:flex-start}.coverage-grid{grid-template-columns:1fr 1fr}.result-head{flex-direction:column;align-items:flex-start}.mock-counter{margin-left:0}}@media (width<=460px){.coverage-grid{grid-template-columns:1fr}.prompt{font-size:22px}.option{grid-template-columns:30px minmax(0,1fr) auto;padding:12px}}.language-switch{border:1px solid var(--border);background:#ffffff06;border-radius:10px;padding:3px;display:inline-flex}.language-switch button{color:#748198;cursor:pointer;background:0 0;border:0;border-radius:7px;padding:7px 10px;font-size:12px;font-weight:700}.language-switch button.active{color:#dce5ff;background:#7c9cff24}.format-row{border:1px solid var(--border);background:#ffffff05;border-radius:14px;justify-content:space-between;align-items:center;gap:18px;margin-bottom:12px;padding:12px 14px;display:flex}.format-label{gap:5px;min-width:240px;display:grid}.format-label small{color:#718099;font-size:11px}.format-segmented{flex-wrap:wrap;justify-content:flex-end}.professor-card{background:linear-gradient(#fbbf2409,#0000 28%),#0c101ae0;border-color:#fbbf242e}.prof-badge{background:#fbbf240f;border:1px solid #fbbf2438;border-radius:6px;padding:4px 6px;color:#f8cf6b!important}.question-context{color:#aebad0;background:#7c9cff0b;border-left:2px solid #7c9cff85;border-radius:0 10px 10px 0;margin-top:20px;padding:14px 16px;font-size:13px;line-height:1.65}.xyz-statements{gap:10px;margin:-6px 0 24px;display:grid}.xyz-statement{color:#cbd5e6;background:#ffffff05;border:1px solid #ffffff13;border-radius:12px;grid-template-columns:40px minmax(0,1fr) auto;align-items:start;gap:13px;padding:13px 14px;line-height:1.55;display:grid}.xyz-letter{color:#ffd56d;background:#fbbf2414;border:1px solid #fbbf2426;border-radius:9px;place-items:center;width:34px;height:34px;font:800 13px/1 JetBrains Mono,monospace;display:grid}.xyz-text{padding-top:5px}.truth{letter-spacing:.06em;border-radius:6px;margin-top:4px;padding:5px 7px;font:700 9px/1 JetBrains Mono,monospace}.truth.true{color:#7ae9bd;background:#6ee7b70f;border:1px solid #6ee7b738}.truth.false{color:#ffabb8;background:#fda4af0e;border:1px solid #fda4af33}.truth-summary{color:#97a4ba;background:#ffffff06;border-radius:8px;flex-wrap:wrap;align-items:center;gap:12px;margin:12px 0 2px;padding:9px 11px;font:600 11px/1.35 JetBrains Mono,monospace;display:flex}.truth-summary b{color:#cbd5e8}.mapping-mini{color:#6f7d95;justify-items:start;gap:7px;margin-top:14px;display:grid}.mapping-mini code{color:#a9b5c9;background:#0000002e;border-radius:6px;padding:6px 8px;font-size:10px}.professor-explainer{border-color:#fbbf241f}@media (width<=850px){.format-row{flex-direction:column;align-items:flex-start}.format-segmented{justify-content:flex-start;width:100%}}@media (width<=560px){.language-switch{order:-1}.xyz-statement{grid-template-columns:34px minmax(0,1fr)}.truth{grid-column:2;justify-self:start}.format-label{min-width:0}}@media (width<=1120px) and (width>=761px){.domain-tabs{grid-template-columns:repeat(2,1fr)}}.share-button{min-width:104px}