:root{--bg:#0b0e14;--panel:#111725;--ink:#e8edf7;--dim:#9aa5bd;--line:#232c40;--algo:#5da2ff;--heur:#f0b94b;--path:#62d98a}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.6 ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}
a{color:var(--algo);text-decoration:none}a:hover{text-decoration:underline}
.dh{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1rem 1.25rem;border-bottom:1px solid var(--line);flex-wrap:wrap}
.wm{display:inline-flex;align-items:center;min-height:1.46rem;font-size:1.2rem;font-weight:700;letter-spacing:-.02em;line-height:1;color:var(--ink)}.wm .wa{color:var(--algo)}.wm .wt{color:var(--heur)}
.dn{display:flex;align-items:center;gap:.4rem;min-width:0;overflow-x:auto;scrollbar-width:none}.dn::-webkit-scrollbar{display:none}.dn a{flex:none;border:1px solid;border-radius:99px;padding:.12rem .55rem;font:700 .82rem/1.45 ui-monospace,monospace}.dn a:hover{text-decoration:none}.dn .nb{color:var(--algo);border-color:rgba(93,162,255,.5);background:rgba(93,162,255,.09)}.dn .nw{color:var(--ink);border-color:rgba(232,237,247,.34);background:rgba(232,237,247,.055)}.dn .nn{color:var(--path);border-color:rgba(98,217,138,.5);background:rgba(98,217,138,.1)}
.dw{max-width:60rem;margin:0 auto;padding:1.5rem 1.25rem 3rem}
.crumbs{font:12px/1.4 ui-monospace,monospace;color:var(--dim);margin-bottom:1.25rem}.crumbs i{margin:0 .5rem;font-style:normal;opacity:.5}
h1{font-size:1.9rem;letter-spacing:-.02em;margin:.2rem 0 .6rem}
h2{font:12px/1.4 ui-monospace,monospace;letter-spacing:.14em;text-transform:uppercase;color:var(--dim);margin:1.8rem 0 .7rem}
.lede{color:var(--dim);margin:0 0 1rem}.lede b{color:var(--ink)}
.aka{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:.75rem .9rem;color:var(--dim);font-size:.92rem}
.aka b{color:var(--ink)}.note{color:var(--dim);font-size:.88rem;font-style:italic}
ul{list-style:none;margin:0;padding:0}
.entries li{display:flex;flex-wrap:wrap;gap:.5rem;align-items:baseline;padding:.5rem .1rem;border-bottom:1px solid var(--line)}
.ea{font-weight:600}.eh{color:var(--heur);font-size:.9rem}.eh.none{color:var(--dim)}
.ed{color:var(--dim);font-size:.88rem}.et{margin-left:auto;font:11px/1 ui-monospace,monospace;color:#8e99b3}
.tier{font:10px/1 ui-monospace,monospace;text-transform:uppercase;letter-spacing:.1em;border:1px solid var(--line);border-radius:99px;padding:.2rem .45rem;color:var(--dim)}
.lesson{font:11px/1 ui-monospace,monospace;color:var(--path);border:1px solid rgba(98,217,138,.4);border-radius:99px;padding:.2rem .5rem;white-space:nowrap}
.t1{color:var(--path);border-color:rgba(98,217,138,.4)}.t2{color:var(--algo);border-color:rgba(93,162,255,.35)}
.phrases span{display:inline-block;background:var(--panel);border:1px solid var(--line);border-radius:99px;padding:.2rem .6rem;margin:0 .35rem .35rem 0;font-size:.82rem;color:var(--dim)}
.rivals{display:flex;flex-wrap:wrap;gap:.4rem}.rivals li{background:var(--panel);border:1px solid var(--line);border-radius:99px;padding:.25rem .7rem;font-size:.88rem}
.index li{display:flex;justify-content:space-between;gap:1rem;padding:.5rem .1rem;border-bottom:1px solid var(--line)}
.index li[id]{display:block;padding:0;border:0;scroll-margin-top:1rem}
.index b{color:var(--dim);font:12px/1.6 ui-monospace,monospace;background:var(--panel);border:1px solid var(--line);border-radius:99px;padding:.1rem .55rem;flex:none}
.az{display:flex;flex-wrap:wrap;gap:.25rem;margin:0 0 .5rem}
.az a{font:13px/1 ui-monospace,monospace;color:var(--dim);border:1px solid var(--line);border-radius:8px;padding:.35rem .55rem;min-width:2.1em;text-align:center}
.az a:hover{color:var(--algo);border-color:var(--algo);text-decoration:none}
.meta p{color:var(--dim);font-size:.9rem}
.df{border-top:1px solid var(--line);padding:1.25rem;color:var(--dim);font-size:.85rem;text-align:center}.fa{display:block;margin-top:.7rem;font-size:.9rem;font-weight:700;letter-spacing:.04em}
@media(max-width:700px){.dn{order:3;flex-basis:100%;padding-bottom:.08rem}.et{margin-left:0}}