:root{--font-sans: "Inter Variable", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;--ease-out: cubic-bezier(.22, 1, .36, 1);--bg: #0a0c11;--surface: #11141b;--surface-2: #171b24;--border: rgba(255, 255, 255, .08);--border-strong: rgba(255, 255, 255, .16);--text: #e8eaf0;--text-strong: #ffffff;--muted: #9aa3b5;--focus: #a5b4fc;--glow-a: rgba(99, 102, 241, .14);--glow-b: rgba(52, 211, 153, .08);color-scheme:dark}:root[data-theme=light]{--bg: #f5f6f9;--surface: #ffffff;--surface-2: #f2f4f8;--border: rgba(15, 23, 42, .09);--border-strong: rgba(15, 23, 42, .18);--text: #1e2533;--text-strong: #0b1020;--muted: #5b6475;--focus: #4f46e5;--glow-a: rgba(99, 102, 241, .1);--glow-b: rgba(5, 150, 105, .07);color-scheme:light}*,*:before,*:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{margin:0;min-height:100vh;font-family:var(--font-sans);font-size:15px;line-height:1.55;color:var(--text);background:radial-gradient(1200px 700px at 75% -10%,var(--glow-a),transparent 60%),radial-gradient(900px 600px at -10% 105%,var(--glow-b),transparent 60%),var(--bg);background-attachment:fixed}a{color:inherit}:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:6px}.skip-link{position:absolute;left:12px;top:-40px;padding:8px 12px;background:var(--surface);border-radius:8px;z-index:10}.skip-link:focus{top:12px}.top{position:sticky;top:0;z-index:5;display:flex;align-items:center;gap:16px;padding:12px max(16px,calc((100vw - 1080px)/2));background:color-mix(in srgb,var(--bg) 86%,transparent);border-bottom:1px solid var(--border)}.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--text-strong);font-weight:650;font-size:17px;letter-spacing:-.01em}.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}.omni-menu{position:relative}button.brand{border:0;background:none;padding:4px 8px 4px 4px;margin-left:-4px;border-radius:10px;font:inherit;font-weight:650;font-size:17px;cursor:pointer}button.brand:hover,button.brand[aria-expanded=true]{background:var(--surface)}.brand .chev{color:var(--muted);transition:transform .25s var(--ease-out)}.brand[aria-expanded=true] .chev{transform:rotate(180deg)}.realm-menu{position:absolute;top:calc(100% + 8px);left:-4px;z-index:6;width:min(320px,calc(100vw - 32px));margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--border-strong);border-radius:14px;box-shadow:0 18px 40px #00000047;transform-origin:top left;animation:menu-in .2s var(--ease-out)}@keyframes menu-in{0%{opacity:0;transform:translateY(-4px) scale(.98)}}.realm-menu .menu-group{padding:8px 10px 2px;font-size:10.5px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}.realm-menu .menu-group:first-child{padding-top:4px}.realm-menu{max-height:min(72vh,620px);overflow:auto}.realm-menu a{display:grid;grid-template-columns:14px auto 1fr;align-items:baseline;column-gap:8px;padding:9px 10px;border-radius:10px;text-decoration:none}.realm-menu a:hover,.realm-menu a:focus-visible{background:var(--surface-2)}.realm-menu .omni-dot{width:8px;height:8px;border-radius:50%;background:var(--rc);align-self:center}.realm-menu strong{color:var(--text-strong);font-weight:650}.realm-menu small{color:var(--muted);font-size:12px}.realm-menu em{grid-column:2 / -1;font-style:normal;color:var(--muted);font-size:13px}.search{position:relative;flex:1;max-width:420px;margin-left:auto;display:flex;align-items:center;gap:8px;height:38px;padding:0 12px;border-radius:999px;background:var(--surface);border:1px solid var(--border);color:var(--muted)}.search:focus-within{border-color:var(--border-strong)}.search input{flex:1;min-width:0;height:100%;border:0;background:none;color:var(--text);font:inherit;outline:none}.search input::-webkit-search-cancel-button{display:none}#results{position:absolute;top:44px;left:0;right:0;margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--border-strong);border-radius:14px;box-shadow:0 18px 40px #00000047;max-height:min(70vh,460px);overflow:auto}#results li a{display:grid;grid-template-columns:auto 1fr;gap:2px 10px;padding:8px 10px;border-radius:9px;text-decoration:none}#results li[aria-selected=true] a,#results li a:hover{background:var(--surface-2)}#results .r-realm{grid-row:span 2;align-self:center;font-size:11px;font-weight:650;text-transform:uppercase;letter-spacing:.06em;padding:3px 7px;border-radius:999px;color:var(--bg);background:var(--rc, var(--muted))}#results strong{color:var(--text-strong);font-weight:600}#results .r-where{color:var(--muted);font-size:12.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}#results .r-empty{padding:10px;color:var(--muted)}.theme{display:grid;place-items:center;width:38px;height:38px;border-radius:999px;border:1px solid var(--border);background:var(--surface);color:var(--muted);cursor:pointer}.theme:hover{color:var(--text-strong)}:root[data-theme=dark] .moon,:root[data-theme=light] .sun{display:none}main{max-width:1080px;margin:0 auto;padding:0 16px 48px}.hero{padding:64px 0 36px;max-width:720px}.eyebrow{margin:0 0 10px;font-size:12.5px;font-weight:650;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}.hero h1{margin:0;font-size:clamp(34px,6vw,56px);line-height:1.05;letter-spacing:-.03em;color:var(--text-strong);font-weight:700}.lede{margin:18px 0 0;font-size:17px;color:var(--muted);max-width:600px}.ladder{list-style:none;margin:8px 0 0;padding:0 0 0 40px;position:relative}.ladder:before{content:"";position:absolute;left:9px;top:26px;bottom:26px;width:2px;border-radius:2px;background:linear-gradient(#22d3ee,#38bdf8 33%,#34d399 66%,#a3e635);opacity:.55}.rung{display:grid;grid-template-columns:128px 1fr;gap:20px;padding:14px 0;opacity:0;transform:translateY(10px);animation:rise .6s var(--ease-out) forwards}.rung:nth-child(2){animation-delay:.06s}.rung:nth-child(3){animation-delay:.12s}.rung:nth-child(4){animation-delay:.18s}@keyframes rise{to{opacity:1;transform:none}}.scale{position:relative;display:flex;flex-direction:column;align-items:flex-start;padding-top:18px}.scale:before{content:"";position:absolute;left:-39px;top:20px;width:16px;height:16px;border-radius:50%;background:var(--bg);border:2px solid var(--rc2);box-shadow:0 0 0 4px color-mix(in srgb,var(--rc2) 18%,transparent)}.size{font-variant-numeric:tabular-nums;font-size:12.5px;font-weight:650;color:var(--muted)}.rung-name{font-size:15px;font-weight:650;color:var(--text-strong);line-height:1.25}.rung-body{padding:16px 18px;border-radius:18px;background:var(--surface);border:1px solid var(--border);display:grid;gap:14px}.rung-stack,.realm-wrap{display:grid;gap:14px}.rung-body.pair{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;background:none;border:0;padding:0}.rung-body.pair .realm-wrap{padding:16px 18px;border-radius:18px;background:var(--surface);border:1px solid var(--border)}.rung-body.pair .realm-wrap .realm{padding:0;border:0;background:none}.rung-body.pair .realm{padding:16px 18px;border-radius:18px;background:var(--surface);border:1px solid var(--border)}.rung-note{margin:0;color:var(--muted)}.realm{display:flex;gap:14px;align-items:center;text-decoration:none;position:relative;transition:border-color .2s,transform .25s var(--ease-out)}.realm-mark{flex:none;display:grid;place-items:center;width:54px;height:54px;border-radius:15px;background:linear-gradient(135deg,color-mix(in srgb,var(--rc1) 22%,transparent),color-mix(in srgb,var(--rc2) 14%,transparent));border:1px solid color-mix(in srgb,var(--rc2) 30%,transparent)}.realm-text{display:grid;gap:2px}.realm-text strong{font-size:19px;letter-spacing:-.01em;color:var(--text-strong)}.realm-text strong:after{content:" →";color:var(--muted);font-weight:500;transition:margin .2s var(--ease-out)}.realm-text span{color:var(--muted)}.realm:hover .realm-text strong:after{margin-left:4px}.rung-body.pair .realm:hover{border-color:color-mix(in srgb,var(--rc2) 45%,transparent);transform:translateY(-2px)}.doors{display:flex;flex-wrap:wrap;gap:8px}.doors a{padding:6px 12px;border-radius:999px;font-size:13.5px;font-weight:550;text-decoration:none;background:var(--surface-2);border:1px solid var(--border);transition:border-color .15s,color .15s}.doors a:hover{border-color:color-mix(in srgb,var(--rc2) 55%,transparent);color:var(--text-strong)}.threads{margin-top:56px}.threads h2{font-size:22px;letter-spacing:-.015em;color:var(--text-strong);margin:0 0 16px}.thread-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.thread{padding:18px;border-radius:18px;background:var(--surface);border:1px solid var(--border)}.thread h3{margin:0 0 12px;font-size:16px;color:var(--text-strong)}.thread ol{list-style:none;margin:0;padding:0;display:grid;gap:2px;position:relative}.thread ol:before{content:"";position:absolute;left:7px;top:14px;bottom:14px;width:2px;background:linear-gradient(var(--rc1),var(--rc2));opacity:.6;border-radius:2px}.thread li a{display:grid;grid-template-columns:16px 1fr;column-gap:12px;padding:6px 8px 6px 0;border-radius:10px;text-decoration:none;font-weight:550;color:var(--text)}.thread li a:before{content:"";grid-row:span 2;align-self:center;width:12px;height:12px;margin-left:2px;border-radius:50%;background:var(--surface);border:2px solid var(--rc2)}.thread li a span{font-size:11.5px;font-weight:650;letter-spacing:.06em;text-transform:uppercase;color:var(--muted)}.thread li a:hover{color:var(--text-strong);background:var(--surface-2)}.foot{max-width:1080px;margin:0 auto;padding:24px 16px 40px;color:var(--muted);font-size:13px;border-top:1px solid var(--border)}.foot.has-fb{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap}.foot p{margin:0}@media (max-width: 860px){.thread-grid,.rung-body.pair{grid-template-columns:1fr}}@media (max-width: 640px){.top{gap:10px}.brand>span:not(.visually-hidden){display:none}.hero{padding:40px 0 24px}.ladder{padding-left:30px}.ladder:before{left:7px}.rung{grid-template-columns:1fr;gap:8px}.scale{flex-direction:row;gap:10px;align-items:baseline;padding:0}.scale:before{left:-31px;top:2px}.realm-mark{width:46px;height:46px}}@media (prefers-reduced-motion: reduce){.rung{animation:none;opacity:1;transform:none}*{transition:none!important}}.fb-foot{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;margin:0;padding:14px 20px 18px;border-top:1px solid var(--border);font-size:12.5px;color:var(--muted)}.fb-link{display:inline-flex;align-items:center;gap:7px;padding:6px 12px;border-radius:999px;border:1px solid var(--border);color:var(--text);font-weight:600;text-decoration:none;cursor:pointer}.fb-link:hover{border-color:var(--border-strong);background:var(--surface-2)}.fb-link svg{width:14px;height:14px}.fb-scrim{position:fixed;top:0;right:0;bottom:0;left:0;z-index:90;background:#00000073}.fb-panel{position:fixed;right:20px;bottom:20px;width:min(420px,calc(100vw - 32px));max-height:calc(100dvh - 40px);overflow:auto;box-sizing:border-box;z-index:91;background:var(--surface);border:1px solid var(--border-strong);border-radius:16px;box-shadow:0 22px 48px #00000059;padding:18px 18px 16px;color:var(--text);font-size:14px}.fb-panel h2{margin:0 0 4px;padding-right:34px;font-size:17px;color:var(--text-strong)}.fb-panel p.sub{margin:0 0 14px;color:var(--muted);font-size:13px}.fb-x{position:absolute;top:12px;right:12px;width:30px;height:30px;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font-size:16px;line-height:1;cursor:pointer}.fb-seg{display:flex;gap:6px;margin-bottom:12px}.fb-seg button{flex:1;padding:8px 6px;border-radius:999px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit;font-weight:600;font-size:13px;cursor:pointer}.fb-seg button[aria-pressed=true]{border-color:var(--accent, var(--focus));background:color-mix(in srgb,var(--accent, var(--focus)) 18%,var(--surface-2))}.fb-ctx{display:flex;gap:10px;align-items:flex-start;padding:10px 12px;margin-bottom:12px;border-radius:12px;background:var(--surface-2);border:1px solid var(--border);font-size:12.5px}.fb-ctx b{display:block;color:var(--text-strong);font-size:13px}.fb-ctx span{color:var(--muted)}.fb-ctx .dot{width:9px;height:9px;border-radius:50%;margin-top:4px;flex:none;background:var(--accent, var(--focus))}.fb-panel label{display:block;font-size:12.5px;color:var(--muted);margin:0 0 5px}.fb-panel textarea,.fb-panel input{width:100%;box-sizing:border-box;border-radius:10px;border:1px solid var(--border);background:var(--surface-2);color:var(--text);font:inherit;padding:10px 12px;margin-bottom:12px}.fb-panel textarea{height:96px;resize:vertical}.fb-panel [aria-invalid=true]{border-color:#ef4444;margin-bottom:4px}.fb-err{margin:0 0 12px;color:#ef4444;font-size:12.5px}.fb-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}.fb-turn{margin-bottom:10px}.fb-status{margin:0 0 10px;font-size:13px;color:var(--text)}.fb-status:empty{display:none}.fb-status.ok{color:#22a06b;font-weight:600}.fb-row{display:flex;justify-content:space-between;align-items:center;gap:10px}.fb-note{font-size:11.5px;color:var(--muted)}.fb-send{padding:9px 18px;border-radius:999px;border:0;background:var(--accent, var(--focus));color:var(--accent-ink, #0b0b0b);font:inherit;font-weight:700;cursor:pointer}.fb-send:disabled{opacity:.6;cursor:default}.fb-link:focus-visible,.fb-x:focus-visible,.fb-seg button:focus-visible,.fb-send:focus-visible,.fb-panel textarea:focus-visible,.fb-panel input:focus-visible{outline:2px solid var(--focus, var(--accent));outline-offset:2px}@media (max-width: 640px){.fb-panel{left:0;right:0;bottom:0;width:auto;max-height:92dvh;border-radius:16px 16px 0 0;border-width:1px 0 0}}