@font-face{font-family:"IBM Plex Mono";font-style:normal;font-weight:500;font-display:swap;src:url(../fonts/plex-mono-500.woff2) format("woff2")}
.site-head,.drawer,.site-foot{
  --bg:#FFFFFF; --surface:#FFFFFF; --sunk:#F4F4F3;
  --ink:#141414; --ink-2:#3F3F3F; --muted:#6E6E6E;
  --line:#E6E6E6; --line-2:#CFCFCF;
  --btn:#141414; --btn-hover:#3A3A3A; --on-btn:#FFFFFF;
  --accent-soft:#ECECEC; --head:#FFFFFF; --head-line:#E6E6E6; --gris-logo:#7A7A7A;
  --frost:color-mix(in srgb,var(--surface) 78%,transparent);
  --serif:"Newsreader",Georgia,"Times New Roman",serif;
  --sans:"Public Sans",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) :is(.site-head,.drawer,.site-foot){
  --bg:#0E0E0E; --surface:#1A1A1A; --sunk:#151515;
  --ink:#F2F2F2; --ink-2:#CCCCCC; --muted:#999999;
  --line:#2A2A2A; --line-2:#3C3C3C;
  --btn:#F2F2F2; --btn-hover:#D6D6D6; --on-btn:#0E0E0E;
  --accent-soft:#262626; --head:#0E0E0E; --head-line:#2A2A2A; --gris-logo:#9A9A9A;
}}
:root[data-theme="dark"] :is(.site-head,.drawer,.site-foot){
  --bg:#0E0E0E; --surface:#1A1A1A; --sunk:#151515;
  --ink:#F2F2F2; --ink-2:#CCCCCC; --muted:#999999;
  --line:#2A2A2A; --line-2:#3C3C3C;
  --btn:#F2F2F2; --btn-hover:#D6D6D6; --on-btn:#0E0E0E;
  --accent-soft:#262626; --head:#0E0E0E; --head-line:#2A2A2A; --gris-logo:#9A9A9A;
}
html body :is(.site-head,.drawer,.site-foot),
html body :is(.site-head,.drawer,.site-foot) *{box-sizing:border-box}
html body :is(.site-head,.drawer,.site-foot){font-family:var(--sans);font-size:16px;line-height:1.55;color:var(--ink);letter-spacing:normal;text-transform:none;-webkit-font-smoothing:antialiased}
html body :is(.site-head,.drawer,.site-foot) a{color:inherit;border:0}
html body :is(.site-head,.drawer,.site-foot) :is(h4,p,ul,li){margin:0;padding:0;max-width:none}
html body :is(.site-head,.drawer,.site-foot) button{font:inherit;color:inherit;margin:0}
html body :is(.site-head,.drawer,.site-foot) :focus-visible{outline:2px solid var(--ink);outline-offset:2px}
html body :is(.site-head,.site-foot) .wrap{max-width:1160px;margin:0 auto;padding:0 24px;width:auto;display:block}
@media (max-width:560px){html body :is(.site-head,.site-foot) .wrap{padding:0 16px}}
html body :is(.site-head,.drawer,.site-foot) .frost{background:var(--frost);-webkit-backdrop-filter:blur(10px) saturate(1.4);backdrop-filter:blur(10px) saturate(1.4);box-shadow:0 1px 2px rgba(0,0,0,.07),0 4px 14px rgba(0,0,0,.10),inset 0 0 0 1px rgba(255,255,255,.55);border:0}
:root[data-theme="dark"] body :is(.site-head,.drawer,.site-foot) .frost{box-shadow:0 1px 2px rgba(0,0,0,.3),0 4px 14px rgba(0,0,0,.3),inset 0 0 0 1px rgba(255,255,255,.08)}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]) body :is(.site-head,.drawer,.site-foot) .frost{box-shadow:0 1px 2px rgba(0,0,0,.3),0 4px 14px rgba(0,0,0,.3),inset 0 0 0 1px rgba(255,255,255,.08)}}
html body .site-head{position:sticky;top:0;z-index:60;margin:0;padding:0;max-width:none;width:auto;display:block;background:color-mix(in srgb,var(--head) 92%,transparent);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border:0;border-bottom:1px solid var(--head-line)}
html body .site-head .wrap{display:flex;align-items:center;gap:24px;min-height:68px}
html body :is(.site-head,.drawer,.site-foot) .logo{display:inline-flex;align-items:center;gap:8px;font-family:var(--serif);font-size:22px;font-weight:600;text-decoration:none;letter-spacing:-.01em;flex:none;color:var(--ink)}
html body :is(.site-head,.drawer,.site-foot) .logo svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
html body :is(.site-head,.drawer,.site-foot) .logo svg circle{fill:currentColor;stroke:none}
html body :is(.site-head,.drawer,.site-foot) .logo i{font-weight:400;font-style:italic;color:var(--gris-logo)}
html body .site-head .mainnav{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
html body .site-head .mainnav>li{position:relative;list-style:none}
html body .site-head .navbtn{display:inline-flex;align-items:center;gap:6px;padding:9px 12px;border:0;background:none;border-radius:999px;font-size:15px;font-weight:500;color:var(--ink-2);text-decoration:none;cursor:pointer;transition:background .15s,color .15s}
html body .site-head .navbtn:hover,html body .site-head .navbtn[aria-expanded="true"]{background:var(--sunk);color:var(--ink)}
html body .site-head .navbtn .chev{width:14px;height:14px;transition:transform .2s}
html body .site-head .navbtn[aria-expanded="true"] .chev{transform:rotate(180deg)}
html body .site-head .navbtn.books{color:var(--ink);font-weight:600;white-space:nowrap}
html body .site-head .navbtn.books .tag{white-space:nowrap;font-size:11px;font-weight:700;padding:2px 7px;border-radius:999px;background:var(--ink);color:var(--bg)}
html body .site-head .util{margin-left:auto;display:flex;align-items:center;gap:10px}
html body :is(.site-head,.drawer) .lang{display:inline-flex;gap:2px;padding:3px;border-radius:999px}
html body :is(.site-head,.drawer) .lang button{border:0;background:none;min-width:40px;height:34px;padding:0 12px;border-radius:999px;font-size:13px;font-weight:600;color:var(--muted);cursor:pointer}
html body :is(.site-head,.drawer) .lang button[aria-pressed="true"]{background:var(--btn);color:var(--on-btn);box-shadow:0 2px 6px rgba(0,0,0,.25);cursor:default}
html body :is(.site-head,.drawer) .iconbtn{width:40px;height:40px;padding:0;border-radius:50%;display:grid;place-items:center;cursor:pointer;color:var(--ink);transition:background .2s,color .2s,transform .2s}
html body :is(.site-head,.drawer) .iconbtn:hover{background:var(--btn);color:var(--on-btn);transform:scale(1.06)}
html body :is(.site-head,.drawer) .iconbtn svg{width:18px;height:18px}
html body .site-head .support{font-size:14px;font-weight:600;height:40px;padding:0 18px 0 14px;border-radius:999px;color:var(--ink);text-decoration:none;display:inline-flex;gap:8px;align-items:center;white-space:nowrap;transition:background .2s,color .2s}
html body .site-head .support svg{width:18px;height:18px;color:var(--ink)}
html body .site-head .support:hover,html body .site-head .support:hover svg{background:var(--btn);color:var(--on-btn)}
html body .site-head .menu{display:none}
html body .site-head .drop{position:absolute;top:calc(100% + 10px);left:-8px;min-width:300px;background:var(--surface);border-radius:16px;box-shadow:0 2px 6px rgba(0,0,0,.06),0 24px 60px rgba(0,0,0,.14);padding:10px;opacity:0;transform:translateY(-6px);pointer-events:none;transition:opacity .18s,transform .18s;z-index:61}
html body .site-head .drop.open{opacity:1;transform:none;pointer-events:auto}
html body .site-head .drop.wide{width:min(640px,90vw);display:grid;grid-template-columns:1fr 1.2fr;gap:6px}
html body .site-head .drop h4{font-family:var(--sans);font-size:11.5px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);padding:8px 12px 4px}
html body .site-head .dl{display:grid;gap:2px;padding:10px 12px;border-radius:12px;text-decoration:none;transition:background .15s}
html body .site-head .dl:hover{background:var(--sunk)}
html body .site-head .dl b{font-weight:600;font-size:14.5px;display:flex;gap:8px;align-items:center;color:var(--ink)}
html body .site-head .dl span{font-size:13px;color:var(--muted)}
html body .site-head .dl .lv{font:500 12px var(--mono);font-style:normal;color:var(--ink);min-width:44px}
html body .site-head .dl.row{grid-template-columns:auto 1fr;align-items:baseline;column-gap:10px}
html body .site-head .dl.row span{grid-column:2}
html body .site-head .drop .foot{grid-column:1/-1;display:flex;justify-content:space-between;align-items:center;gap:10px;margin-top:4px;padding:12px;border-radius:12px;background:var(--sunk);font-size:14px}
html body .site-head .drop .foot a{font-weight:600;text-decoration:none}
html body .site-head .icn{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;background:var(--sunk);color:var(--ink);flex:none}
html body .site-head .icn svg{width:18px;height:18px}
html body .site-head .dl.ic{grid-template-columns:auto 1fr;column-gap:12px;align-items:center}
html body .site-head .dl.ic>div{display:grid;gap:1px}
html body .drawer{display:none}
@media (max-width:1020px){
  html body .site-head .mainnav,html body .site-head .util .support .t{display:none}
  html body .site-head .support{padding:0;width:40px;justify-content:center}
  html body .site-head .menu{display:grid}
  html body .drawer{display:block;position:fixed;inset:0;z-index:80;pointer-events:none}
  html body .drawer .scrim{position:absolute;inset:0;background:rgba(20,17,13,.35);opacity:0;transition:opacity .2s}
  html body .drawer .sheet{position:absolute;top:0;right:0;bottom:0;width:min(380px,88vw);background:var(--surface);padding:calc(18px + env(safe-area-inset-top,0px)) 18px calc(24px + env(safe-area-inset-bottom,0px));overflow:auto;transform:translateX(100%);transition:transform .25s;display:grid;align-content:start;gap:6px}
  html body .drawer.open{pointer-events:auto}
  html body .drawer.open .scrim{opacity:1}
  html body .drawer.open .sheet{transform:none}
}
@media (max-width:560px){html body .site-head .util .lang{display:none}html body .site-head .wrap{gap:12px}html body .site-head .util{gap:8px}}
html body .drawer .sheet .langrow{display:flex;justify-content:space-between;align-items:center;padding:14px 4px;border-bottom:1px solid var(--line);font-weight:600}
html body .drawer .sheet .top{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px}
html body .drawer .sheet details{border:0;border-bottom:1px solid var(--line);margin:0;padding:0;background:none}
html body .drawer .sheet summary{list-style:none;cursor:pointer;padding:14px 4px;font-weight:600;font-size:16px;display:flex;justify-content:space-between}
html body .drawer .sheet summary::-webkit-details-marker{display:none}
html body .drawer .sheet summary::after{content:"+";color:var(--muted);font-weight:400;font-size:20px;line-height:1}
html body .drawer .sheet details[open] summary::after{content:"\2013"}
html body .drawer .sheet .sl{display:block;padding:9px 4px 9px 12px;text-decoration:none;color:var(--ink-2);font-size:15px}
html body .drawer .sheet .plain{display:block;padding:14px 4px;font-weight:600;font-size:16px;text-decoration:none;border-bottom:1px solid var(--line)}
html body .drawer .sheet .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;margin-top:14px;padding:0 20px;border-radius:999px;font-weight:600;font-size:15px;text-decoration:none;border:1px solid transparent}
html body .drawer .sheet .btn-primary{background:var(--btn);color:var(--on-btn)}
html body .drawer .sheet .btn-secondary{background:transparent;border-color:var(--ink);color:var(--ink)}
html body .site-foot{display:block;max-width:none;width:auto;margin:0;border:0;border-top:1px solid var(--head-line);padding:56px 0 28px;background:var(--bg);text-align:left}
html body .site-foot .fgrid{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px}
html body .site-foot .fgrid>*{min-width:0}
html body .site-foot .fbrand p{color:var(--ink-2);font-size:14.5px;margin:14px 0 18px;max-width:34ch}
html body .site-foot .socials{display:flex;gap:8px;flex-wrap:wrap}
html body .site-foot .socials a{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--ink);transition:background .2s,color .2s,transform .2s}
html body .site-foot .socials a:hover{background:var(--btn);color:var(--on-btn);transform:scale(1.06)}
html body .site-foot .socials svg{width:18px;height:18px}
html body .site-foot .fcol h4{font-family:var(--sans);font-size:12px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--muted);margin-bottom:12px}
html body .site-foot .fcol ul{list-style:none;margin:0;padding:0;display:grid;gap:9px}
html body .site-foot .fcol li{list-style:none;margin:0}
html body .site-foot .fcol a{text-decoration:none;font-size:14.5px;color:var(--ink-2)}
html body .site-foot .fcol a:hover{color:var(--ink);text-decoration:underline}
html body .site-foot .fbar{margin-top:44px;padding-top:22px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px 24px;font-size:13px;color:var(--muted)}
html body .site-foot .fbar a{color:var(--ink-2)}
@media (max-width:980px){html body .site-foot .fgrid{grid-template-columns:1fr 1fr}html body .site-foot .fbrand{grid-column:1/-1}}
@media (max-width:480px){html body .site-foot .fgrid{grid-template-columns:1fr}}
html{scroll-padding-top:84px}
@media (prefers-reduced-motion:reduce){
  html body :is(.site-head,.drawer,.site-foot) *{transition:none!important}
}
@media print{html body :is(.site-head,.drawer,.site-foot){display:none!important}}
html body .drawer .sheet .top .logo{gap:0}
html body .site-head .drop.ab{min-width:360px}
html body .site-head .drop.ab .foot{margin-top:6px}
html body .site-head .dl.ab-now{grid-template-columns:96px 1fr;column-gap:12px;align-items:center}
html body .site-head .dl.ab-now img{width:96px;aspect-ratio:16/9;object-fit:cover;border-radius:8px;display:block}
html body .site-head .dl.ab-now>div{display:grid;gap:1px}
html body :is(.site-head,.drawer) .ab-soon{opacity:.55;cursor:default}
html body .site-head .dl.ab-soon:hover{background:none}
html body .site-head{border-bottom:0;box-shadow:0 1px 0 rgba(0,0,0,.03),0 6px 20px rgba(0,0,0,.05)}
html body .site-foot,html body .site-foot .fbar{border-top:0}