:root{--bg:#f4f7fb;--card:#fff;--text:#122033;--muted:#667085;--line:#dfe5ee;--accent:#173b74;--accent2:#255fab;--accentSoft:#edf4ff;--ok:#067647;--okbg:#ecfdf3;--bad:#b42318;--badbg:#fef3f2;--warn:#b54708;--warnbg:#fff6e8;--shadow:0 16px 42px rgba(16,24,40,.08)}
[data-theme="dark"]{--bg:#0d1421;--card:#121c2c;--text:#f5f7fb;--muted:#bac4d4;--line:#2b3a50;--accent:#85aef2;--accent2:#a9c7ff;--accentSoft:#172b49;--ok:#75e0aa;--okbg:#0a2f29;--bad:#ffaaa4;--badbg:#351419;--warn:#ffd173;--warnbg:#352607;--shadow:none}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--text);font:16px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif}button,select,input{font:inherit}.app{max-width:1040px;margin:auto;padding:24px}.top{display:flex;justify-content:space-between;gap:18px;align-items:center;margin:4px 0 22px}.brand h1{font-size:clamp(1.6rem,4vw,2.45rem);line-height:1.08;margin:0}.brand p{margin:7px 0 0;color:var(--muted)}.iconBtn{width:44px;height:44px;border:1px solid var(--line);background:var(--card);border-radius:12px;cursor:pointer;color:var(--text)}.card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow);margin-bottom:18px}.dashboardRow{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px}.pill{border:1px solid var(--line);background:var(--card);border-radius:999px;padding:7px 11px;font-weight:700;font-size:.9rem}.examHero{display:grid;grid-template-columns:1fr auto;gap:28px;align-items:center;padding:30px;border-radius:22px;background:linear-gradient(135deg,#102d5b,#1f559d);color:#fff;box-shadow:0 18px 50px rgba(23,59,116,.22);margin-bottom:20px}.examHero h2{font-size:clamp(1.8rem,5vw,2.7rem);margin:6px 0 8px}.examHero p{max-width:680px;margin:0;color:#e7eef9}.eyebrow{font-size:.75rem;font-weight:900;letter-spacing:.12em}.eyebrow.subtle{color:var(--accent2)}.microFacts{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}.microFacts span{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);padding:6px 9px;border-radius:999px;font-size:.83rem}.btn{border:0;border-radius:12px;padding:12px 16px;background:var(--accent);color:#fff;font-weight:800;cursor:pointer;transition:.15s transform,.15s opacity}.btn:hover{transform:translateY(-1px)}.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}.heroBtn{background:#fff;color:#173b74;min-width:185px;padding:15px 20px}.btn.ghost{background:transparent;color:var(--text);border:1px solid var(--line)}.btn.warn{background:var(--warn);color:#1f1608}.btn.success{background:var(--ok);color:white}.btn.dangerText{color:var(--bad);border-color:color-mix(in srgb,var(--bad) 35%,var(--line))}.customCard h2{margin:4px 0 2px}.sectionHead{display:flex;justify-content:space-between;gap:16px}.muted{color:var(--muted)}.small{font-size:.9rem}.modepick{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:18px 0}.mode{display:flex;gap:12px;text-align:left;align-items:flex-start;border:1px solid var(--line);background:var(--card);color:var(--text);border-radius:16px;padding:17px;cursor:pointer}.mode:hover{border-color:var(--accent2)}.mode.active{border-color:var(--accent2);box-shadow:inset 0 0 0 1px var(--accent2);background:var(--accentSoft)}.mode b{display:block;font-size:1.05rem}.mode small{display:block;margin-top:3px;color:var(--muted);line-height:1.4}.modeIcon{font-size:1.3rem}.customControls{display:grid;grid-template-columns:minmax(220px,1fr) auto;gap:18px;align-items:end;padding-top:4px}.label{display:block;font-weight:800;margin-bottom:6px}.select{width:100%;padding:11px 12px;border-radius:11px;border:1px solid var(--line);background:var(--card);color:var(--text)}.startCustomBtn{min-width:235px}.infoStrip{padding:14px 16px;border:1px solid var(--line);border-radius:15px;background:color-mix(in srgb,var(--card) 85%,var(--accentSoft));margin-bottom:18px}.infoStrip>div:first-child{display:flex;gap:8px;flex-wrap:wrap}.quizTopbar{display:flex;justify-content:space-between;gap:14px;align-items:center;margin-bottom:12px}.status{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.compactStatus{justify-content:flex-end}.timer{font-variant-numeric:tabular-nums}.questionCard{margin-bottom:14px}.progress{height:8px;background:var(--line);border-radius:999px;overflow:hidden;margin:2px 0 15px}.progress>div{height:100%;background:linear-gradient(90deg,var(--accent),var(--accent2));width:0}.qtitle{font-size:1.25rem;font-weight:850;margin:9px 0 10px}.qtitle strong{font-weight:900;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}.instruction{color:var(--muted);font-size:.92rem;margin:0 0 15px}.answers{display:grid;gap:10px}.answer{display:flex;gap:12px;align-items:flex-start;border:1px solid var(--line);border-radius:14px;padding:14px;cursor:pointer;background:var(--card)}.answer:hover{border-color:var(--accent2)}.answer input{margin-top:5px;transform:scale(1.2)}.answer.correct{background:var(--okbg);border-color:var(--ok)}.answer.wrong{background:var(--badbg);border-color:var(--bad)}.letter{flex:0 0 30px;height:30px;border-radius:50%;display:grid;place-items:center;background:var(--bg);font-weight:900}.feedback{border-radius:13px;padding:13px 15px;margin-top:14px}.feedback.ok{background:var(--okbg);color:var(--ok)}.feedback.bad{background:var(--badbg);color:var(--bad)}.nav{display:flex;justify-content:space-between;gap:10px;margin-top:18px}.navleft,.navright{display:flex;gap:8px;flex-wrap:wrap}.overviewTitle{display:flex;justify-content:space-between;gap:8px;align-items:baseline}.overview{display:grid;grid-template-columns:repeat(auto-fill,minmax(44px,1fr));gap:7px;margin-top:12px}.qdot{border:1px solid var(--line);background:transparent;color:var(--text);height:40px;border-radius:10px;cursor:pointer;font-weight:800}.qdot.done{background:var(--accentSoft)}.qdot.unsure{outline:2px solid var(--warn)}.qdot.current{border-color:var(--accent2);box-shadow:inset 0 0 0 1px var(--accent2)}.resultHeader{display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center;margin-bottom:12px}.scoreCircle{width:132px;height:132px;border-radius:50%;display:grid;place-items:center;background:var(--accentSoft);border:8px solid color-mix(in srgb,var(--accent2) 35%,var(--line));text-align:center}.scoreCircle strong{display:block;font-size:2rem;line-height:1}.scoreCircle span{font-size:.8rem;color:var(--muted)}.resultTitle h2{margin:0 0 4px;font-size:1.65rem}.resultTitle p{margin:0;color:var(--muted)}.resultStats{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:18px 0}.statBox{padding:13px;border-radius:14px;border:1px solid var(--line);background:var(--bg)}.statBox strong{display:block;font-size:1.3rem}.reviewitem{padding:15px 0;border-top:1px solid var(--line)}.resultActions{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}.hidden{display:none!important}.footer{color:var(--muted);font-size:.84rem;text-align:center;padding:10px 0 28px}
@media(max-width:760px){.app{padding:14px}.examHero{grid-template-columns:1fr}.heroBtn{width:100%}.customControls{grid-template-columns:1fr}.startCustomBtn{width:100%}.quizTopbar{align-items:stretch;flex-direction:column}.compactStatus{justify-content:flex-start}.resultHeader{grid-template-columns:1fr}.scoreCircle{width:116px;height:116px}.resultStats{grid-template-columns:1fr 1fr}.modepick{grid-template-columns:1fr}.nav{flex-direction:column}.navright{justify-content:flex-end}.navright .btn{flex:1}.overviewTitle{align-items:flex-start;flex-direction:column}}
@media(max-width:480px){.app{padding:10px}.card{padding:16px;border-radius:16px}.examHero{padding:22px}.resultStats{grid-template-columns:1fr}.top{align-items:flex-start}.brand p{font-size:.88rem}.qtitle{font-size:1.12rem}.btn{padding:11px 13px}}