:root{--bg:#0f172a;--card:#ffffff;--ink:#0f172a;--muted:#64748b;--line:#e2e8f0;--accent:#2563eb;--good:#15803d;--bad:#b91c1c}
*{box-sizing:border-box} body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;background:#f8fafc;color:var(--ink);padding-bottom:env(safe-area-inset-bottom)}
.top{position:sticky;top:0;z-index:5;background:var(--bg);color:white;padding:14px 16px calc(12px + env(safe-area-inset-top));display:flex;align-items:end;justify-content:space-between;box-shadow:0 2px 12px #0002}
h1{font-size:21px;margin:0} h2{font-size:18px;margin:0 0 12px} p{line-height:1.45}.top p{margin:2px 0 0;color:#cbd5e1;font-size:13px}
main{max-width:760px;margin:0 auto;padding:12px}.screen{display:none}.screen.active{display:block}
.card{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:16px;margin:12px 0;box-shadow:0 2px 8px #00000008}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:10px}.mode{min-height:54px;text-align:left}
button,select,input{font:inherit;border-radius:12px;border:1px solid var(--line);padding:11px 12px;background:white}
button{background:var(--accent);color:white;border:0;font-weight:700}button.ghost{background:#eef2ff;color:#1e3a8a}button.danger{background:#fee2e2;color:#991b1b;width:100%;margin-top:12px}
button:disabled{opacity:.5}label{display:block;margin-top:14px;font-weight:700}select,input{display:block;width:100%;margin-top:6px;color:var(--ink)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;text-align:center}.stats b{font-size:22px;display:block}.stats span{font-size:12px;color:var(--muted)}
.setrow{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding:12px 0}.setrow:first-child{border-top:0}.setrow small{color:var(--muted)}
.quizbar{display:flex;align-items:center;justify-content:space-between;gap:8px;margin:8px 0}.quizbar button{padding:9px 11px}.progress{height:8px;background:#e2e8f0;border-radius:999px;overflow:hidden}.progress div{height:100%;width:0;background:var(--accent);transition:.2s}
.meta{color:var(--muted);font-size:13px;margin-bottom:8px}.qcard h2{font-size:19px;line-height:1.35}
.option{width:100%;display:block;text-align:left;background:white;color:var(--ink);border:1px solid var(--line);margin:10px 0;padding:14px;border-radius:14px;font-weight:600}
.option.chosen{border-color:var(--accent);box-shadow:0 0 0 2px #bfdbfe}.option.correct{background:#dcfce7;border-color:#16a34a}.option.wrong{background:#fee2e2;border-color:#dc2626}
.feedback{border-radius:14px;padding:14px;margin:14px 0;background:#f1f5f9;line-height:1.45}.feedback.good{background:#dcfce7}.feedback.bad{background:#fee2e2}.hidden{display:none!important}
.actions{display:grid;grid-template-columns:1fr 1fr 1fr;gap:8px;margin-top:12px}
.figthumb{border:1px solid var(--line);border-radius:14px;padding:8px;margin:10px 0;background:#f8fafc}.figthumb img{width:100%;border-radius:10px;display:block}.figthumb button{width:100%;margin-top:8px;background:#0f172a}
.modal{position:fixed;inset:0;background:#020617;z-index:20;display:flex;flex-direction:column}.modalbar{color:white;padding:calc(10px + env(safe-area-inset-top)) 12px 10px;display:flex;justify-content:space-between;align-items:center}.modalbar button{font-size:24px;background:#334155;padding:4px 12px}.modal img{width:100%;height:100%;object-fit:contain;overflow:auto}
@media (max-width:420px){.grid2{grid-template-columns:1fr}.actions{grid-template-columns:1fr 1fr}.actions #nextBtn{grid-column:1/-1}.qcard h2{font-size:18px}}