:root{--bg:#f5f4fb;--card:#fff;--ink:#1d1b33;--muted:#6b6889;--line:#e4e2f0;--accent:#5b4bdb;--accent-soft:#ece9ff;--cta:#16a34a;--cta-dark:#12813b;--danger:#dc2626;--memory:#3b82f6;--attention:#10b981;--logic:#ec4899;--speed:#f59e0b;--radius:18px}*{box-sizing:border-box}html,body{margin:0;padding:0}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;font-family:Inter,ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,sans-serif;line-height:1.5}a{color:var(--accent)}h1,h2,h3{margin:0 0 .5rem;line-height:1.2}h1{font-size:1.75rem}h2{font-size:1.35rem}p{margin:0 0 .75rem}.page{max-width:480px;margin:0 auto;padding:1rem 1rem 3rem}.page-wide{max-width:960px;margin:0 auto;padding:1rem 1rem 3rem}.card{background:var(--card);border-radius:var(--radius);border:1px solid var(--line);margin-bottom:1rem;padding:1.25rem}.muted{color:var(--muted)}.small{font-size:.85rem}.center{text-align:center}.row{align-items:center;gap:.75rem;display:flex}.between{justify-content:space-between}.stack>*+*{margin-top:.75rem}.grid2{grid-template-columns:1fr 1fr;gap:.75rem;display:grid}.grid3{grid-template-columns:repeat(3,1fr);gap:.6rem;display:grid}.btn{cursor:pointer;background:var(--accent);color:#fff;border:0;border-radius:14px;justify-content:center;align-items:center;gap:.4rem;width:100%;padding:.95rem 1.2rem;font-size:1.05rem;font-weight:700;text-decoration:none;display:inline-flex}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-cta{background:var(--cta)}.btn-cta:hover:not(:disabled){background:var(--cta-dark)}.btn-ghost{color:var(--accent);border:1px solid var(--line);background:0 0}.btn-danger{background:var(--danger)}.btn-inline{width:auto}.option{border:2px solid var(--line);background:var(--card);cursor:pointer;min-height:3.2rem;color:var(--ink);border-radius:14px;justify-content:center;align-items:center;padding:.5rem;font-size:1.1rem;font-weight:600;display:flex}.option:hover{border-color:var(--accent)}.option.selected{border-color:var(--accent);background:var(--accent-soft)}.option.correct{border-color:var(--cta);background:#dcfce7}.option.wrong{border-color:var(--danger);background:#fee2e2}.progress{background:var(--line);border-radius:99px;height:8px;overflow:hidden}.progress>span{background:var(--accent);height:100%;display:block}.tag{color:#fff;text-transform:capitalize;border-radius:99px;padding:.15rem .6rem;font-size:.75rem;font-weight:700;display:inline-block}.tag-memory{background:var(--memory)}.tag-attention{background:var(--attention)}.tag-logic{background:var(--logic)}.tag-speed{background:var(--speed)}.field{border:1px solid var(--line);border-radius:12px;width:100%;padding:.9rem 1rem;font-size:1rem}.check{align-items:flex-start;gap:.6rem;font-size:.9rem;display:flex}.check input{flex:none;width:1.1rem;height:1.1rem;margin-top:.25rem}.error{color:var(--danger);font-size:.9rem}.big-number{color:var(--accent);font-size:3rem;font-weight:800;line-height:1}.blur{filter:blur(7px);-webkit-user-select:none;user-select:none}.topbar{justify-content:space-between;align-items:center;padding:.75rem 0;display:flex}.logo{color:var(--accent);font-size:1.15rem;font-weight:800;text-decoration:none}.nav{gap:1rem;font-size:.95rem;display:flex}.nav a{color:var(--ink);text-decoration:none}.footer{border-top:1px solid var(--line);color:var(--muted);margin-top:2rem;padding-top:1rem;font-size:.85rem}.footer a{color:var(--muted);margin-right:.75rem}.svg-cell{border:1px solid var(--line);aspect-ratio:1;background:#fff;border-radius:10px;justify-content:center;align-items:center;display:flex}.cell-grid{gap:.5rem;display:grid}.tile{aspect-ratio:1;border:2px solid var(--line);cursor:pointer;background:#fff;border-radius:12px}.tile.lit{background:var(--accent);border-color:var(--accent)}.tile.hit{background:var(--cta);border-color:var(--cta)}.tile.miss{background:var(--danger);border-color:var(--danger)}.dot{aspect-ratio:1;cursor:pointer;border:0;border-radius:50%}