:root{font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:#18253a;background:#eef2f8;font-size:16px;line-height:1.55;--navy:#152543;--blue:#245ac7;--line:#d8e0ec;--muted:#57657c}*{box-sizing:border-box}body{margin:0}header{height:88px;background:var(--navy);color:white;display:flex;align-items:center;justify-content:space-between;padding:0 max(24px,calc((100% - 1200px)/2));gap:20px}.brand{display:flex;gap:12px;align-items:center;color:inherit;text-decoration:none;font-weight:700;line-height:1.25}.brand small{display:block;font-size:.75rem;letter-spacing:.17em;color:#a8c7ff;margin-top:5px}.mark{border:1px solid #819cc5;border-radius:9px;padding:9px;font-size:1.1rem}main{max-width:1200px;margin:0 auto;padding:40px 24px 64px}h1{font-size:2.3rem;letter-spacing:-.035em;margin:0 0 8px;line-height:1.2}h2{font-size:1.3rem;line-height:1.35;margin:0 0 16px}h3{font-size:1.05rem;margin:0 0 8px}p{margin:0 0 20px}.muted,small{color:var(--muted)}small{font-size:.875rem}.eyebrow{font-size:.8rem;letter-spacing:.12em;text-transform:uppercase;font-weight:700;color:var(--blue);margin-bottom:14px}.page-head{display:flex;align-items:end;justify-content:space-between;gap:20px;margin-bottom:30px}.panel{background:white;border:1px solid var(--line);border-radius:16px;padding:26px;box-shadow:0 3px 12px #15254304}.grid{display:grid;grid-template-columns:1.5fr 1fr;gap:24px}.stack{display:grid;gap:20px}.row{display:flex;align-items:center;justify-content:space-between;gap:16px}.actions{display:flex;gap:12px;align-items:center;flex-wrap:wrap}.bank{border-top:1px solid var(--line);padding:20px 0}.bank:last-child{padding-bottom:0}.bank:first-of-type{border-top:0}.bank-title{font-weight:700;font-size:1.08rem}button,.button{font:inherit;font-size:.94rem;font-weight:650;background:var(--blue);border:1px solid transparent;border-radius:8px;color:white;padding:10px 17px;cursor:pointer;text-decoration:none;display:inline-flex;justify-content:center;align-items:center;gap:6px;min-height:44px}button:hover,.button:hover{filter:brightness(.95)}button:disabled{opacity:.5;cursor:wait}.secondary{background:white;border-color:#b7c5d9;color:#243753}.subtle{background:transparent;color:var(--blue);padding:7px 10px}.header-button{background:#ffffff14;border-color:#ffffff40;color:white}input,select{font:inherit;background:white;color:inherit;border:1px solid #aab8ce;border-radius:7px;padding:10px 12px;max-width:100%;min-height:44px}label{display:block;font-size:.9rem;font-weight:600}input[type=email],input[type=password]{width:100%;margin-top:6px}label+label{margin-top:18px}:focus-visible{outline:3px solid #629cff;outline-offset:3px}.login{max-width:470px;margin:7vh auto}.login button[type=submit]{width:100%;margin-top:24px}.login h1{font-size:2rem}.hint{font-size:.875rem;color:var(--muted);margin:12px 0}.error{color:#a21e36;background:#fff2f3;padding:12px;border-radius:8px;margin-top:16px}.empty{padding:20px 0;color:var(--muted)}.import-zone{border:1px dashed #9caec8;background:#f7f9fd;border-radius:10px;padding:20px;margin:16px 0}.import-zone input{width:100%;font-size:.875rem;padding:8px}.attempt-row{border-top:1px solid var(--line);padding:16px 0}.pill{font-size:.8rem;border-radius:20px;background:#eef3ff;color:#245ac7;padding:4px 10px;white-space:nowrap}.test-layout{display:grid;grid-template-columns:minmax(0,1fr) 245px;gap:24px}.question{font-size:1.35rem;line-height:1.55;margin:20px 0 26px;white-space:pre-wrap}.option{display:flex;align-items:flex-start;gap:14px;padding:16px;border:1px solid #c8d2e2;border-radius:10px;margin:12px 0;font-size:1rem;font-weight:400;cursor:pointer;white-space:pre-wrap}.option:has(input:checked){border-color:var(--blue);background:#edf3ff;box-shadow:inset 3px 0 var(--blue)}.option input{min-height:0;margin-top:6px;accent-color:var(--blue);width:18px;height:18px;flex-shrink:0}.option b{color:var(--muted);font-size:.9rem}.question-tools{display:flex;justify-content:space-between;align-items:center;gap:18px;border-top:1px solid var(--line);padding-top:20px;margin-top:26px}.flag{display:flex;align-items:center;gap:8px}.flag input{min-height:0}.navigator{display:grid;grid-template-columns:repeat(5,1fr);gap:7px;margin:18px 0}.navigator button{padding:6px;min-height:36px;background:#f2f5fa;color:var(--navy);border-color:var(--line);font-size:.85rem}.navigator .answered{background:#dce9ff;border-color:#9ab9ee}.navigator .flagged{box-shadow:inset 0 -3px #d38c1e}.navigator .current{outline:2px solid var(--blue);outline-offset:1px}.timer{font-variant-numeric:tabular-nums;font-size:1.35rem;font-weight:700}.save{font-size:.875rem;color:var(--muted)}progress{width:100%;height:6px;accent-color:var(--blue);margin-top:20px}.score{font-size:3.6rem;line-height:1.1;font-weight:750;letter-spacing:-.05em;color:var(--blue)}.review{border-top:1px solid var(--line);padding:22px 0}.review:first-child{border-top:0}.review .question{font-size:1.1rem;margin:12px 0}.answer-line{padding:9px 12px;border-radius:6px;margin:7px 0;background:#f3f6fa}.answer-line.correct{background:#e8f5ed;border-left:3px solid #2a7650}.answer-line.wrong{background:#fff0f0;border-left:3px solid #b43a45}.explanation{font-size:.94rem;background:#f5f7fb;padding:14px;margin-top:14px;white-space:pre-wrap}.hub-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}.hub-card{text-decoration:none;color:inherit;display:block;padding:32px;min-height:240px;border-top:4px solid var(--blue)}.hub-card:hover{border-color:#245ac7;box-shadow:0 10px 25px #15254312}.hub-card h2{font-size:1.6rem;margin-top:22px}.loading{padding:80px 0;text-align:center;color:var(--muted)}#notice:not(:empty){position:fixed;bottom:24px;left:50%;transform:translateX(-50%);background:#152543;color:white;padding:14px 20px;border-radius:10px;max-width:90%;z-index:5}dialog{border:1px solid var(--line);border-radius:16px;padding:28px;max-width:460px}dialog::backdrop{background:#14223880}table{width:100%;border-collapse:collapse;text-align:left;font-size:.94rem}td,th{padding:10px 0;border-bottom:1px solid var(--line)}.wide{width:100%}.nowrap{white-space:nowrap}@media(max-width:760px){header{height:76px;padding:0 18px}.brand{font-size:.9rem}main{padding:28px 16px}.grid,.test-layout,.hub-grid{grid-template-columns:1fr}.panel{padding:20px}.page-head{align-items:start;flex-direction:column}h1{font-size:1.9rem}.question{font-size:1.15rem}.question-tools{align-items:start;flex-direction:column}.navigator{grid-template-columns:repeat(8,1fr)}#account small{display:none}.row{flex-wrap:wrap}}@media(prefers-reduced-motion:no-preference){button,.hub-card{transition:background .15s,box-shadow .15s}}