.lx{
  color-scheme: dark;
  --bg: #0f0f12; --surface: #17171c; --surface-2: #1e1e25; --ink: #ececec; --ink-2: #c4c4cc; --muted: #8a8a93; --line: #2c2c35;
  --blue: #58c4dd; --yellow: #f4d345; --red: #fc6255; --green: #83c167;
  --blue-soft: rgba(88,196,221,.14); --yellow-soft: rgba(244,211,69,.14); --red-soft: rgba(252,98,85,.14); --green-soft: rgba(131,193,103,.16);
  --serif: "CMU Serif", "Latin Modern Roman", Georgia, serif;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "Instrument Sans", system-ui, sans-serif;
  --mono: ui-monospace, "SF Mono", Menlo, monospace;
  --shadow: 0 16px 40px -24px rgba(0,0,0,.8);
}
.lx *{ box-sizing: border-box; }
.lx{ scroll-behavior: smooth; overflow-x: clip; }
.lx{ margin: 0; background: var(--bg); color: var(--ink); font: 400 17px/1.65 var(--sans); -webkit-font-smoothing: antialiased; overflow-x: clip; }
.lx img{ max-width: 100%; display: block; }
.lx a{ color: inherit; }
.lx .wrap{ width: min(820px, 100% - 32px); margin-inline: auto; }
.lx .muted{ color: var(--muted); }
.lx .small{ font-size: 14px; }
.lx .blue{ color: var(--blue); }
.lx .yellow{ color: var(--yellow); }
.lx .red{ color: var(--red); }
.lx .green{ color: var(--green); }
.lx .top{ display: flex; justify-content: space-between; align-items: center; padding: 22px 0 0; }
.lx .handle{ font: 400 17px/1 var(--serif); color: var(--muted); text-decoration: none; }
.lx .chip{ font: 600 12px/1 var(--sans); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--line); border-radius: 999px; padding: 7px 11px; }
.lx footer{ display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; padding: 28px 0 56px; margin-top: 24px; border-top: 1px solid var(--line); }
.lx footer .handle{ color: var(--ink); font-size: 20px; }
.lx h1,.lx h2{ font-family: var(--serif); font-weight: 400; letter-spacing: -.005em; margin: 0; }
.lx h1{ font-size: clamp(40px, 7.5vw, 68px); line-height: 1.05; }
.lx h2{ font-size: clamp(30px, 5vw, 44px); line-height: 1.1; margin: 8px 0 14px; }
.lx h3{ font: 600 18px/1.35 var(--sans); margin: 0 0 6px; }
.lx .step{ font: 500 13px/1 var(--mono); color: var(--muted); }
.lx .sub{ font-size: 18px; color: var(--ink-2); margin: 0 0 24px; max-width: 660px; }
.lx .lead{ font: 400 clamp(20px, 2.8vw, 24px)/1.45 var(--serif); color: var(--ink-2); margin: 20px 0 26px; max-width: 680px; }
.lx .hero{ padding: 64px 0 36px; }
.lx .hero .kicker{ font: 500 14px/1 var(--mono); color: var(--muted); letter-spacing: .08em; }
.lx .hero h1{ margin-top: 14px; }
.lx .card{ background: var(--surface); border: 1px solid var(--line); border-radius: 18px; box-shadow: var(--shadow); }
.lx .pad{ padding: 20px 22px; }
.lx .grid2{ display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.lx .grid3{ display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; }
.lx .tip{ display: flex; gap: 14px; align-items: flex-start; padding: 16px 20px; margin-top: 16px; }
.lx .tip p{ margin: 0; color: var(--ink-2); }
.lx .note{ font-size: 13.5px; color: var(--muted); margin: 12px 0 0; }
.lx .badge{ display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px; border-radius: 999px; font: 600 13px/1 var(--sans); }
.lx .badge.good{ background: var(--green-soft); color: var(--green); }
.lx .badge.bad{ background: var(--red-soft); color: var(--red); }
.lx .badge.info{ background: var(--blue-soft); color: var(--blue); }
.lx .badge.warn{ background: var(--yellow-soft); color: var(--yellow); }
.lx .lab{ padding: 18px 20px; }
.lx .lab-top{ display: flex; justify-content: space-between; align-items: center; gap: 10px; flex-wrap: wrap; margin-bottom: 10px; }
.lx .legend{ list-style: none; display: flex; flex-wrap: wrap; gap: 6px 16px; padding: 0; margin: 0; font-size: 14px; color: var(--ink-2); }
.lx .legend li{ display: inline-flex; align-items: center; gap: 7px; }
.lx .legend i{ width: 11px; height: 11px; border-radius: 50%; display: inline-block; background: var(--c); }
.lx .figure{ position: relative; border-radius: 12px; overflow: hidden; background: #0f0f12; }
.lx .figure img{ width: 100%; height: auto; image-rendering: auto; }
.lx .figure svg{ position: absolute; inset: 0; width: 100%; height: 100%; }
.lx .readouts{ display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; margin-top: 12px; }
.lx .readouts div{ background: var(--surface-2); border-radius: 12px; padding: 10px 14px; display: flex; justify-content: space-between; align-items: baseline; gap: 10px; }
.lx .readouts span{ font-size: 14px; color: var(--muted); }
.lx .readouts b{ font: 600 22px/1 var(--mono); }
.lx .slider{ display: block; margin: 14px 0 0; font-size: 15px; color: var(--ink-2); }
.lx .slider b{ font-family: var(--mono); color: var(--ink); }
.lx .slider input{ width: 100%; margin-top: 8px; accent-color: var(--yellow); }
.lx .btn{ font: 600 15px/1 var(--sans); padding: 11px 16px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface-2); color: var(--ink); cursor: pointer; }
.lx .btn:hover{ border-color: var(--yellow); }
.lx .quiz{ display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.lx .opt{ font: 600 16px/1.35 var(--sans); text-align: left; padding: 16px 18px; border-radius: 14px; border: 1.5px solid var(--line); background: var(--surface); color: var(--ink); cursor: pointer; }
.lx .opt:hover{ border-color: var(--yellow); }
.lx .opt.right{ border-color: var(--green); background: var(--green-soft); }
.lx .opt.right::after{ content: "  ✓"; color: var(--green); }
.lx .opt.wrong{ border-color: var(--red); background: var(--red-soft); }
.lx .opt.wrong::after{ content: "  ✗"; color: var(--red); }
.lx .quiz-why{ min-height: 26px; margin: 14px 0 0; font: 400 19px/1.45 var(--serif); color: var(--ink-2); }
.lx .steps{ list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.lx .steps li{ display: flex; gap: 16px; align-items: flex-start; padding: 16px 20px; }
.lx .steps .n{ flex: none; width: 38px; height: 38px; border-radius: 50%; border: 1.5px solid var(--yellow); color: var(--yellow); display: grid; place-items: center; font: 400 20px/1 var(--serif); }
.lx .steps p{ margin: 2px 0 0; color: var(--ink-2); font-size: 15.5px; }
.lx .qa{ display: grid; gap: 10px; }
.lx .qa details{ padding: 15px 20px; }
.lx .qa summary{ cursor: pointer; font: 600 16.5px/1.4 var(--sans); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.lx .qa summary::after{ content: "+"; font: 400 24px/1 var(--serif); color: var(--yellow); }
.lx .qa details[open] summary::after{ content: "–"; }
.lx .qa p{ margin: 12px 0 0; color: var(--ink-2); font-size: 15.5px; }
.lx .recap{ text-align: center; padding: 34px 26px; font: 400 clamp(24px, 3.6vw, 32px)/1.3 var(--serif); }
.lx .reveal{ opacity: 0; transform: translateY(14px); transition: opacity .6s ease, transform .6s ease; }
.lx .reveal.in{ opacity: 1; transform: none; }
@media (max-width: 680px){.lx .quiz,.lx .grid2,.lx .grid3,.lx .readouts{ grid-template-columns: minmax(0, 1fr); }}
@media (prefers-reduced-motion: reduce){.lx .reveal{ opacity: 1; transform: none; transition: none; }}
.lx .handle-link{ text-decoration: none; }
.lx .crumbs{ font: 500 14px/1.4 var(--sans); color: var(--muted); padding-top: 18px; display: flex; flex-wrap: wrap; gap: 6px; }
.lx .crumbs a{ color: var(--muted); text-decoration: none; }
.lx .crumbs a:hover{ color: var(--yellow); }
.lx .crumbs .here{ color: var(--ink-2); }
.lx .pn{ display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; padding: 36px 0 8px; }
.lx .pn a{ display: block; text-decoration: none; padding: 18px 20px; }
.lx .pn a:hover{ border-color: var(--yellow); }
.lx .pn small{ display: block; font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--muted); margin-bottom: 8px; }
.lx .pn b{ font: 400 22px/1.25 var(--serif); }
.lx .pn .next{ text-align: right; }
.lx .pn .empty{ visibility: hidden; }
.lx .tracks{ display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
.lx .tcard{ display: block; text-decoration: none; padding: 22px 24px; }
.lx .tcard:hover{ border-color: var(--yellow); }
.lx .tcard h3{ font: 400 26px/1.2 var(--serif); margin: 0 0 8px; }
.lx .tcard p{ margin: 0 0 14px; color: var(--ink-2); font-size: 15.5px; }
.lx .tcard .count{ font: 600 12px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; color: var(--yellow); }
.lx .tcard .count.soon{ color: var(--muted); }
.lx .llist{ list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.lx .llist a{ display: flex; gap: 18px; align-items: flex-start; padding: 18px 22px; text-decoration: none; }
.lx .llist a:hover{ border-color: var(--yellow); }
.lx .llist .num{ flex: none; min-width: 44px; height: 44px; padding: 0 8px; border-radius: 22px; border: 1.5px solid var(--yellow); color: var(--yellow); display: grid; place-items: center; font: 400 20px/1 var(--serif); }
.lx .llist h3{ font: 400 24px/1.2 var(--serif); margin: 0 0 6px; }
.lx .llist p{ margin: 0 0 10px; color: var(--ink-2); font-size: 15.5px; }
.lx .meta{ display: flex; flex-wrap: wrap; gap: 8px; }
.lx .pill{ font: 600 12px/1 var(--sans); padding: 5px 10px; border-radius: 999px; background: var(--surface-2); color: var(--muted); }
.lx .pill.lvl-Beginner{ color: var(--green); background: var(--green-soft); }
.lx .pill.lvl-Intermediate{ color: var(--yellow); background: var(--yellow-soft); }
.lx .pill.lvl-Advanced{ color: var(--red); background: var(--red-soft); }
.lx .soonbox{ padding: 26px; text-align: center; color: var(--muted); }
@media (max-width: 680px){.lx .tracks,.lx .pn{ grid-template-columns: minmax(0, 1fr); }
.lx .pn .next{ text-align: left; }}
.lx .lgroup{ margin: 0 0 34px; }
.lx .ghead{ font: 400 26px/1.2 var(--serif); margin: 0 0 6px; display: flex; align-items: baseline; gap: 12px; flex-wrap: wrap; }
.lx .ghead .gcount{ font: 500 13px/1 var(--mono); color: var(--muted); letter-spacing: .04em; }
.lx .gdesc{ margin: 0 0 14px; color: var(--ink-2); font-size: 15.5px; }
.lx .seg{ display: inline-flex; flex-wrap: wrap; gap: 6px; }
.lx .seg .btn{ padding: 9px 13px; font-size: 14px; }
.lx .seg .btn.on{ border-color: var(--yellow); color: var(--yellow); background: var(--yellow-soft); }
.lx .vs{ display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.lx .vs .card{ padding: 16px 18px; }
.lx .vs h3{ margin: 0 0 6px; font-size: 16px; }
.lx .vs .big{ font: 600 30px/1.1 var(--mono); }
.lx .pic svg{ width: 100%; height: auto; display: block; background: var(--surface-2); border-radius: 12px; }
.lx .chart svg{ width: 100%; height: auto; display: block; }
.lx .docs{ display: grid; gap: 8px; margin-top: 12px; }
.lx .chunk{ border: 1px solid var(--line); border-radius: 12px; padding: 10px 14px; font-size: 15px; display: flex; gap: 12px; align-items: baseline; background: var(--surface-2); }
.lx .chunk .rk{ font: 600 13px/1 var(--mono); color: var(--muted); min-width: 2.2em; }
.lx .chunk .meta{ margin-left: auto; font: 500 12px/1 var(--mono); color: var(--muted); white-space: nowrap; }
.lx .chunk.right{ border-color: var(--green); background: var(--green-soft); }
.lx .chunk.out{ opacity: .45; }
.lx .cut{ border-top: 2px dashed var(--yellow); margin: 4px 0; position: relative; }
.lx .cut span{ position: absolute; right: 0; top: -11px; background: var(--bg); padding: 0 8px; font: 600 12px/1.6 var(--mono); color: var(--yellow); }
.lx .toggles{ display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 4px; }
.lx .toggles .btn.on{ border-color: var(--green); color: var(--green); background: var(--green-soft); }
.lx .verdict{ margin-top: 12px; font-size: 15px; }
.lx .src{ font-size: 14px; color: var(--muted); line-height: 1.6; }
.lx .src a{ color: var(--blue); }
@media (max-width: 680px){.lx .vs{ grid-template-columns: minmax(0, 1fr); }
.lx .chunk .meta{ display: none; }}
.lx{--surface:#FFFFFF;--surface-2:#EDEFF3;--ink-2:#4B5363;--muted:#4B5363;--blue:#0057B8;--yellow:#8A5A00;--red:#B3261E;--green:#1B6B3A;
  --blue-soft:rgba(0,87,184,.1);--yellow-soft:rgba(138,90,0,.1);--red-soft:rgba(179,38,30,.1);--green-soft:rgba(27,107,58,.1);--shadow:none;--serif:"Instrument Sans",system-ui,sans-serif}
.lx .chunk.out{opacity:1;border-style:dashed;background:transparent;color:var(--muted)}
.lx .quiz-why{font-size:17px}
.lx #tip:empty{display:none}
.lx{--bg:#F5F6F8;--bg2:#EDEFF3;--card:#FFFFFF;--line:#DDE1E8;--ink:#11141B;--dim:#4B5363;--faint:#6A7281;--r:10px;color-scheme:light;
  --mono:"JetBrains Mono",ui-monospace,monospace;background:transparent;color:var(--ink);font:400 16px/1.6 "Instrument Sans",system-ui,sans-serif;min-width:0}
.lx ul,.lx ol{list-style:revert;margin:revert;padding:revert}
.lx p{text-wrap:pretty}
.lx h2,.lx h3,.lx h4{font-family:"Bricolage Grotesque",system-ui,sans-serif;letter-spacing:-.015em;text-wrap:balance;color:var(--ink)}
.lx h2{font-size:clamp(22px,3vw,26px);font-weight:700;line-height:1.15}
.lx h3{font-size:19px;font-weight:600}
.lx button{font:inherit;color:inherit}
.lx input[type=range]{min-height:32px}
.lx section.ch{margin-top:16px;padding:clamp(18px,2.6vw,26px);background:var(--card);border:1px solid var(--line);border-radius:14px}
.lx .chap{font:500 12px/1.4 var(--mono);text-transform:uppercase;letter-spacing:.04em;color:var(--dim)}
.lx .chap::before{content:none}
.lx .card{background:var(--bg);box-shadow:none}
.lx .stage,.lx .stage.plot{background:var(--card)}
.lx .preamble{margin-top:16px}
.lx .preamble p{margin:0}
.lx .tip{background:#fff;color:var(--ink)}
.lx .tool{margin-top:10px;font-size:15px;color:var(--dim)}
.lx .more{margin-top:16px;background:var(--card);border:1px solid var(--line);border-radius:14px}
.lx .more>summary{display:flex;align-items:center;min-height:56px;padding:6px 22px;font:600 18px/1.2 "Bricolage Grotesque",system-ui,sans-serif;letter-spacing:-.01em;cursor:pointer}
.lx .more section.ch{margin:0;border:0;border-top:1px solid var(--line);border-radius:0;background:transparent}
.lx .built-from{padding:0 22px 16px;margin:0}
.lx{--warn:#A5491A;--a:#0A7267;--b:#8F5500;--ok:#17703F;--st:#5E41C2;--bad:#B02C2C;--info:#2558B4;--faint:#5F6776}
.lx .lab label{flex-wrap:wrap;min-width:0}
.lx table[data-o="list"] tr[style*="opacity"]{opacity:1!important;background:var(--bg2)}
.lx .lab label input[type=range]{flex:1 1 120px;min-width:120px;max-width:100%}
.lx .ctl button,.lx .seg button,.lx .lab>button,.lx .lab .btn{min-height:44px}
.lx .ctl .dots{gap:0}
.lx .ctl .dots button{box-sizing:border-box;width:24px;height:24px;min-height:24px;padding:7px;border:0;border-radius:50%;background-clip:content-box}
.lx .ctl{flex-wrap:wrap}
@media (max-width:560px){.lx .brace span{display:none}}
@media (max-width:560px){.lx section.ch{padding:16px 12px}.lx .card{padding:14px 12px}.lx .more>summary{padding-inline:12px}.lx .built-from{padding-inline:12px}}