@font-face{font-family:Lexend;font-weight:400 700;font-display:swap;src:url(../fonts/lexend-latin.woff2)format("woff2");unicode-range:U+??,U+2000-206F}:root{--page:#fffdf7;--bg:#f3eee2;--ink:#1f2328;--muted:#4f5661;--line:#e6dfcf;--line-strong:#c7bea9;--accent:#1f4fd1;--accent-deep:#163a9c;--accent-light:#e8eefc;--on-accent:#fff;--bad:#b42318;--ok:#13795b}@media (prefers-color-scheme:dark){:root{--page:#1c1f24;--bg:#131519;--ink:#eceae4;--muted:#aeb4bd;--line:#2f343b;--line-strong:#4a515b;--accent:#86a8ff;--accent-deep:#b3c7ff;--accent-light:#1f2a45;--on-accent:#0e1116;--bad:#ff8a80;--ok:#55cfa2}}*{box-sizing:border-box}html{font-size:20px}body,html{background:var(--bg)}body{color:var(--ink);margin:0;font-family:Lexend,Segoe UI,Verdana,sans-serif;line-height:1.75}.sheet{background:var(--page);border:1px solid var(--line);border-radius:1rem;max-width:46rem;margin:1.2rem auto 3rem;padding:2rem 2.4rem}.sheet.narrow{max-width:24rem}h1{margin:0 0 1.2rem;font-size:2rem;line-height:1.2}h2{margin:2rem 0 .6rem;font-size:1.2rem}.lessons{flex-direction:column;gap:.6rem;margin:0;padding:0;list-style:none;display:flex}.card{border:1.5px solid var(--line-strong);background:var(--page);min-height:56px;color:var(--ink);border-radius:.8rem;align-items:center;gap:.8rem;padding:.6rem 1rem;text-decoration:none;display:flex}.card:hover{border-color:var(--accent);background:var(--accent-light)}.card .num{color:var(--accent);min-width:2rem;font-weight:700}.card .name{font-weight:600}.card .body{flex-direction:column;flex:1;min-width:0;display:flex}.card .hint{color:var(--muted);font-size:.85rem;line-height:1.4}.card.next{border:2.5px solid var(--accent)}.card.finished{border-color:var(--ok)}.card.finished .hint{color:var(--ok);font-weight:600}.card.game .num{font-size:1.2rem}.card .badge{color:var(--on-accent);background:var(--accent);border-radius:1rem;padding:.1rem .6rem;font-size:.8rem;font-weight:700}.card.done{opacity:.75}.card .tick{color:var(--ok);font-weight:700}.done-list{margin-top:1.4rem}.done-list summary{cursor:pointer;min-height:48px;color:var(--muted);border-radius:.6rem;align-items:center;padding:0 .4rem;font-weight:700;display:flex}.done-list summary:hover{background:var(--accent-light)}.done-list[open] summary{margin-bottom:.6rem}form{flex-direction:column;gap:.6rem;display:flex}label{font-weight:600}input{border:1.5px solid var(--line-strong);background:var(--page);color:var(--ink);padding:.4rem .8rem}.btn,input{font:inherit;border-radius:.6rem;min-height:48px}.btn{cursor:pointer;background:var(--accent);color:var(--on-accent);border:1.5px solid var(--accent);padding:.5rem 1.1rem;font-size:.9rem;font-weight:700}.btn:disabled{opacity:.5}.btn.quiet{color:var(--muted);border-color:var(--line-strong);background:0 0;margin-top:2rem;font-weight:600}.error{color:var(--bad);margin:0}@media (width<=700px){.sheet{border:none;border-radius:0;min-height:100vh;margin:0;padding:1.2rem 1rem 2rem}}