:root{--bg:#fdf6ec;--card:#fff;--ink:#2b2d42;--muted:#6b7280;--line:#ece4d6;--primary:#ff7b54;--primary-dark:#e65f3a;--accent:#ffd166;--good:#06d6a0;--bad:#ef476f;--math:#4cc9f0;--english:#f72585;--reading:#7209b7;--science:#06d6a0;--radius:18px;--shadow:0 6px 20px #2b2d4214}*{box-sizing:border-box}html,body,#root{min-height:100%}body{background:var(--bg);color:var(--ink);margin:0;font-family:Nunito,Segoe UI,system-ui,-apple-system,sans-serif;line-height:1.5}a{color:var(--primary-dark)}h1,h2,h3{margin:0 0 .5rem;line-height:1.2}h1{font-size:2rem}h2{font-size:1.4rem}h3{font-size:1.1rem}p{margin:0 0 .75rem}.muted{color:var(--muted)}.small{font-size:.85rem}.container{max-width:1100px;margin:0 auto;padding:1rem 16px 3rem}.narrow{max-width:480px}.nav{background:var(--card);box-shadow:var(--shadow);z-index:5;justify-content:space-between;align-items:center;gap:1rem;padding:.75rem 16px;display:flex;position:sticky;top:0}.nav 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.8rem}input:focus,select:focus,textarea:focus{border-color:var(--primary);outline:none}.field{margin-bottom:.9rem}.error{color:var(--bad);background:#fde8ee;border-radius:12px;padding:.6rem .9rem;font-weight:700}.success{color:#05795a;background:#e3fbf3;border-radius:12px;padding:.6rem .9rem;font-weight:700}.pill{background:var(--bg);color:var(--ink);border-radius:999px;padding:.15rem .6rem;font-size:.8rem;font-weight:800;display:inline-block}.pill-good{color:#05795a;background:#e3fbf3}.pill-bad{color:var(--bad);background:#fde8ee}.pill-warn{color:#8a5a00;background:#fff4d6}.points{color:#b47a00;background:var(--accent);white-space:nowrap;border-radius:999px;padding:.3rem .8rem;font-weight:900}table{border-collapse:collapse;width:100%;font-size:.92rem}th,td{text-align:left;border-bottom:1px solid var(--line);vertical-align:top;padding:.5rem .4rem}th{color:var(--muted);text-transform:uppercase;letter-spacing:.04em;font-size:.8rem}.stat{text-align:center}.stat .num{font-size:2rem;font-weight:900}.bar{background:var(--line);border-radius:999px;height:10px;overflow:hidden}.bar>div{background:var(--good);border-radius:999px;height:100%}.toggle{cursor:pointer;width:46px;height:26px;box-shadow:none;background:#d1d5db;border:none;border-radius:999px;flex-shrink:0;padding:0;position:relative}.toggle:after{content:"";background:#fff;border-radius:50%;width:20px;height:20px;transition:left .15s;position:absolute;top:3px;left:3px}.toggle.on{background:var(--good)}.toggle.on:after{left:23px}.toggle:active{transform:none}.kid{font-size:1.1rem}.topic-card{border-top:8px solid var(--c,var(--primary));cursor:pointer;color:inherit;text-decoration:none;display:block}.topic-card:hover{transform:translateY(-3px)}.subject-head{align-items:center;gap:.5rem;margin:1.5rem 0 .75rem;display:flex}.subject-head .dot{background:var(--c);border-radius:50%;width:14px;height:14px}.question{white-space:pre-wrap;text-align:center;margin:1rem 0;font-size:1.7rem;font-weight:900;line-height:1.3}.passage{border-left:6px solid var(--accent);background:#fffaf0;border-radius:12px;padding:1rem;font-size:1.1rem;line-height:1.7}.choices{grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:.75rem;display:grid}.choice{background:var(--card);color:var(--ink);border:3px solid var(--line);box-shadow:0 4px 0 var(--line);padding:1rem;font-size:1.2rem}.choice:hover{border-color:var(--accent);background:#fffaf0}.choice.picked-right{border-color:var(--good);background:#e3fbf3}.choice.picked-wrong{border-color:var(--bad);background:#fde8ee}.choice.reveal{border-color:var(--good)}.answer-input{text-align:center;max-width:320px;margin:0 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