:root{
  --bg:#23262d; --paper:#e9e7e1; --surface:#ffffff; --surface-2:#f1efea; --line:#d5d3cc; --line-soft:#e0ded8;
  --ink:#2f3136; --ink-soft:#55585f; --ink-mute:#80838a;
  --link:#1f5fa8; --link-hover:#154480; --accent:#1f5fa8;
  --amber:#c25a00; --cyan:#1f5fa8; --coral:#d04a3a; --green:#2a8a4a; --violet:#4a5bd6; --hl:#fff0c2;
  --chip:#2f3136; --chip-ink:#ffffff;
  --c64blue:#40318d; --c64grey:#686868;
  --fd:'Lato',system-ui,sans-serif; --fb:'Lato',system-ui,sans-serif; --fm:'IBM Plex Mono',ui-monospace,Menlo,monospace;
  --col:1080px; --gx:68px; --fs:17px; --lh:1.6; --hw:900; --h1:46px; --h2:26px; --sy:48px; --pp:26px; --r:10px;
  --plate-shadow:0 1px 2px rgba(0,0,0,.05),0 4px 14px rgba(0,0,0,.05);
}
*{box-sizing:border-box}
html{background:var(--bg);min-height:100%}
body{background:var(--paper);color:var(--ink);font-family:var(--fb);font-size:var(--fs);line-height:var(--lh);max-width:var(--col);margin:0 auto;min-height:100vh;padding:0 0 4rem}
h1,h2,h3{font-weight:var(--hw);letter-spacing:-.01em;text-wrap:balance;color:var(--ink);margin:0}
.wrap{padding:0 var(--gx)}
.hero{padding:48px var(--gx) 8px;text-align:left}
.eyebrow{font-family:var(--fm);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-mute);margin:0 0 10px}
.hero h1{font-size:var(--h1);line-height:1.15;letter-spacing:-.02em;margin:0 0 14px}
.hero .sub{margin:0 0 .6em;color:var(--ink-soft)}
section{padding:var(--sy) 0 24px}
section:last-of-type{border-bottom:none}
.fig{font-family:var(--fm);font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--ink-mute);margin:0 0 10px}
h2.t{font-size:var(--h2);margin-bottom:12px}
.lede{color:var(--ink-soft);margin:0 0 30px}
.plate{background:var(--surface);border:1px solid var(--line);border-radius:var(--r);padding:var(--pp);box-shadow:var(--plate-shadow)}
.cap{font-size:14px;color:var(--ink-mute);margin-top:14px;line-height:1.55}
.cap b{color:var(--ink);font-weight:700}
code{font-family:var(--fm);font-size:.82em;background:var(--chip);color:var(--chip-ink);border-radius:4px;padding:2px 6px;white-space:nowrap}
@media (max-width:700px){:root{--gx:16px;--pp:14px;--h1:36px}}
.ik-pics{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ik-pics img,.ik-scr{width:100%;height:auto;image-rendering:pixelated;display:block;border-radius:4px}
@media (max-width:700px){.ik-pics{grid-template-columns:1fr}}
.ik-tbl{border-collapse:collapse;width:100%;font-size:14px}
.ik-tbl th,.ik-tbl td{border-bottom:1px solid var(--line-soft);padding:6px 8px;text-align:left;vertical-align:middle}
.ik-tbl th{font-family:var(--fm);font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-mute);font-weight:500}
.ik-tbl td.n{font-family:var(--fm);text-align:right}
.ik-tbl tr.ik-odd td{background:var(--hl)}
.ik-scroll{overflow-x:auto}
.ik-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin:0 0 12px}
.ik-btn{font-family:var(--fm);font-size:12.5px;border:1px solid var(--line);background:var(--surface);color:var(--ink);border-radius:6px;padding:6px 10px;cursor:pointer}
.ik-btn[aria-pressed="true"]{background:var(--ink);color:#fff;border-color:var(--ink)}
.ik-joy{display:grid;grid-template-columns:repeat(3,52px);grid-template-rows:repeat(3,52px);gap:6px}
.ik-joy button{font-size:20px;border:1px solid var(--line);background:var(--surface-2);border-radius:8px;cursor:pointer;color:var(--ink)}
.ik-joy button[aria-pressed="true"]{background:var(--ink);color:#fff}
.ik-joywrap{display:flex;flex-wrap:wrap;gap:26px;align-items:flex-start}
.ik-out{flex:1;min-width:240px;font-size:15px}
.ik-out .ik-k{font-family:var(--fm);font-size:11.5px;letter-spacing:.04em;text-transform:uppercase;color:var(--ink-mute)}
#ik-pout{display:flow-root}
.ik-mono{font-family:var(--fm);font-size:13.5px}
.ik-slots{display:flex;gap:14px;margin:8px 0 4px}
.ik-slot{width:46px;text-align:center;font-family:var(--fm);font-size:11.5px;color:var(--ink-mute)}
.ik-ball{width:30px;height:30px;border-radius:50%;margin:0 auto 6px;background:#6c5eb5;border:2px solid #40318d}
.ik-ball.ik-flash{animation:ik-blink .5s steps(1) infinite}
.ik-ball.ik-none{background:transparent;border-style:dashed;border-color:var(--line)}
@keyframes ik-blink{50%{background:#fff;border-color:#000}}
@media (prefers-reduced-motion:reduce){.ik-ball.ik-flash{animation:none;background:#fff;border-color:#000}}
.ik-frame{position:relative}
.ik-frame canvas{width:100%;height:auto;image-rendering:pixelated;display:block}
.ik-digits{image-rendering:pixelated;vertical-align:middle;background:#686868;border-radius:3px}
.ik-bubble{display:flex;flex-wrap:wrap;gap:22px;align-items:flex-start}
.ik-bubble canvas{image-rendering:pixelated;display:block;max-width:100%;height:auto;border-radius:4px}
.ik-bubble .ik-out{min-width:220px}
.ik-msgs td:first-child{font-family:var(--fm);white-space:nowrap}
.ik-msgs td.ik-txt{font-family:var(--fm);font-size:12.5px;white-space:pre-line}
.ik-msgs tr.ik-sel td{background:var(--hl)}
.ik-msgs tr{cursor:pointer}
.ik-pose{display:flex;flex-wrap:wrap;gap:22px;align-items:flex-start}
.ik-pose canvas{image-rendering:pixelated;display:block;background:#4a4a4a;border-radius:4px;max-width:100%;height:auto}
.ik-strip{display:flex;flex-wrap:wrap;gap:4px;margin-top:16px}
.ik-strip button{padding:0;border:2px solid transparent;border-radius:4px;background:#4a4a4a;cursor:pointer;line-height:0}
.ik-strip button[aria-pressed="true"]{border-color:#ffd400}
.ik-strip canvas{image-rendering:pixelated;display:block;width:36px;height:48px}
.ik-wave{width:100%;height:120px;display:block;background:var(--surface-2);border-radius:6px;margin-top:12px}
.ik-posecv{image-rendering:pixelated;display:block;background:#4a4a4a;border-radius:4px;max-width:100%;height:auto}
.ik-frames{margin-top:18px}
.ik-frames button{position:relative}
.ik-frames span{position:absolute;left:2px;bottom:1px;font:500 9px/1 var(--fm);color:#fff;opacity:.75}
.ik-frames canvas{width:54px;height:72px}
kbd{font:500 12px/1 var(--fm);display:inline-block;min-width:1.6em;padding:3px 5px;border:1px solid var(--line);border-bottom-width:2px;border-radius:5px;background:var(--surface-2);color:var(--ink);text-align:center}
.ik-scene canvas{image-rendering:pixelated;display:block;width:100%;height:auto;border-radius:4px;background:#000}
.ik-keys{gap:10px}
.ik-key{display:flex;flex-direction:column;align-items:flex-start;gap:6px;padding:10px 12px;border:1px solid var(--line);border-radius:8px;background:var(--surface-2);cursor:pointer;color:var(--ink);font:inherit;min-width:150px}
.ik-key:active{transform:translateY(1px)}
.ik-key.ik-hit{border-color:#ffd400;box-shadow:0 0 0 2px #ffd400 inset}
.ik-caps{display:flex;gap:4px}
.ik-kl{font-size:14px}
.ik-kn{font:500 11.5px/1.2 var(--fm);color:var(--ink-mute)}
.ik-zoom{image-rendering:pixelated;display:block;background:#000;border-radius:4px;max-width:100%;height:auto}
.ik-sw{display:inline-block;width:14px;height:14px;border-radius:3px;vertical-align:-2px;margin-right:4px;border:1px solid rgba(0,0,0,.25)}
.ik-sets tr[data-k]{cursor:pointer}
.ik-sets tr.ik-sel td{background:rgba(255,212,0,.18)}