:root{--ink:#eaf3f4;--muted:#a9bbc1;--navy:#071c26;--panel:#10313d;--line:#31505a;--gold:#e7b44a;--red:#d9534f;--ok:#41bf8b}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,sans-serif;background:linear-gradient(135deg,#071c26,#0e3642);color:var(--ink);min-height:100vh}button,select,input{font:inherit}button{cursor:pointer;border:0}.shell{max-width:1100px;margin:auto;padding:20px}.brand{display:flex;gap:12px;align-items:center;font-weight:800;letter-spacing:.5px}.mark{display:grid;place-items:center;width:42px;height:42px;background:var(--gold);clip-path:polygon(50% 0,100% 30%,82% 100%,18% 100%,0 30%);color:var(--navy)}.sub{color:var(--muted);font-size:.85rem;margin-top:2px}.card{background:#10313df2;border:1px solid #31505a;border-radius:18px;padding:24px;box-shadow:0 15px 50px #0003}.home{max-width:760px;margin:7vh auto}.home h1{font-size:clamp(2rem,5vw,3.5rem);margin:.9rem 0}.accent{color:var(--gold)}.grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin:26px 0}.field{display:grid;gap:7px;color:var(--muted);font-size:.9rem}.field select,.field input{padding:12px;border-radius:10px;border:1px solid var(--line);background:#092630;color:var(--ink)}.btn{border-radius:11px;padding:13px 18px;font-weight:700;background:var(--gold);color:#172229}.btn.secondary{background:#173f4c;color:var(--ink);border:1px solid var(--line)}.notice{border-left:3px solid var(--gold);padding:12px 14px;background:#092630;border-radius:7px;color:var(--muted);font-size:.9rem}.top{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px;gap:12px}.timer{font-size:1.3rem;font-weight:800;color:var(--gold);font-variant-numeric:tabular-nums}.progress{height:8px;background:#08232d;border-radius:99px;overflow:hidden;margin:14px 0}.progress i{display:block;height:100%;background:var(--gold)}.exam{display:grid;grid-template-columns:1fr 250px;gap:18px}.meta{color:var(--gold);font-size:.85rem;font-weight:700}.question{font-size:1.15rem;line-height:1.6;margin:18px 0}.option{display:flex;gap:13px;text-align:left;width:100%;padding:14px;margin:10px 0;border-radius:12px;background:#0a2933;color:var(--ink);border:1px solid var(--line)}.option b{color:var(--gold)}.option.active{background:#19505c;border-color:var(--gold)}.side{padding:16px}.numbers{display:flex;flex-wrap:wrap;gap:7px;margin-top:12px}.num{width:34px;height:34px;border-radius:8px;background:#092630;color:var(--ink);border:1px solid var(--line)}.num.answered{background:#1e6a5b}.num.flag{outline:2px solid var(--gold)}.num.current{background:var(--gold);color:#13252b}.nav{display:flex;justify-content:space-between;gap:10px;margin-top:24px}.review{max-width:850px;margin:5vh auto}.score{font-size:3rem;color:var(--gold);font-weight:800;margin:15px 0}.result{padding:14px;border-radius:10px;background:#092630;margin:8px 0}.right{border-left:4px solid var(--ok)}.wrong{border-left:4px solid var(--red)}details{margin-top:9px;color:var(--muted)}summary{color:var(--ink);cursor:pointer}@media(max-width:720px){.shell{padding:14px}.grid,.exam{grid-template-columns:1fr}.side{order:-1}.home{margin:3vh auto}.card{padding:18px}.numbers{max-height:130px;overflow:auto}.question{font-size:1.05rem}}