/* Lemma Docs — front-end (dev scaffold subset of the prototype) */
@font-face{
  font-family:'InterVariable';
  src:url('../fonts/inter.woff2') format('woff2');
  font-weight:100 900;font-style:normal;font-display:swap;
}
:root{
  --hx-font:'InterVariable','Inter',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --hx-mono:'JetBrains Mono',ui-monospace,'SF Mono',Menlo,monospace;
  --hx-nav-h:60px; --hx-side-w:280px; --hx-toc-w:240px; --hx-content-max:760px;
  --hx-primary:#6d5efc; --hx-primary-soft:rgba(109,94,252,.13); --hx-primary-2:#8b7dff;
  --hx-ease:cubic-bezier(.22,.61,.36,1);
}
html[data-theme="light"]{
  --hx-bg:#fff; --hx-bg-1:#fafbfc; --hx-bg-2:#f2f4f7; --hx-bg-side:#fbfbfd; --hx-elev:#fff;
  --hx-text:#1a1f36; --hx-text-2:#525a6b; --hx-text-3:#6e7686; --hx-prose:#333a4d; --hx-border:#e8eaef;
  --hx-code-bg:#f7f8fa; --hx-code-border:#ebedf1; --hx-kbd:#f1f2f5;
  --hx-green:#0a8754; --hx-blue:#2563eb;
  --tok-key:#9333ea; --tok-str:#0a8754; --tok-num:#b45309; --tok-com:#9aa0ac; --tok-fn:#2563eb; --tok-var:#be185d; --tok-punc:#7a8294;
  --hx-shadow:0 1px 2px rgba(20,24,40,.04),0 8px 24px rgba(20,24,40,.08);
}
html[data-theme="dark"]{
  --hx-bg:#080910; --hx-bg-1:#0d0f16; --hx-bg-2:#14161f; --hx-bg-side:#0a0b12; --hx-elev:#13151d;
  --hx-text:#edeef2; --hx-text-2:#a3a9b8; --hx-text-3:#7a8090; --hx-prose:#c9cdd8; --hx-border:#1c1f29;
  --hx-code-bg:#0c0e15; --hx-code-border:#1b1e28; --hx-kbd:#1a1d27;
  --hx-green:#34d399; --hx-blue:#60a5fa;
  --tok-key:#c792ea; --tok-str:#9ece6a; --tok-num:#ff9e64; --tok-com:#5c6370; --tok-fn:#82aaff; --tok-var:#f07178; --tok-punc:#8a93a6;
  --hx-shadow:0 1px 2px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.45);
}
.hx-body{margin:0;font-family:var(--hx-font);background:var(--hx-bg);color:var(--hx-text);font-size:16.5px;line-height:1.7;letter-spacing:-.011em;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;font-feature-settings:'cv11','ss01'}
.hx-body *{box-sizing:border-box}
.hx-body a{color:inherit;text-decoration:none}

/* reading progress */
.hx-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:95;background:linear-gradient(90deg,var(--hx-primary),var(--hx-primary-2));border-radius:0 3px 3px 0;pointer-events:none}

/* top nav — brand left, search centered, actions right */
.hx-topnav{position:sticky;top:0;z-index:60;height:var(--hx-nav-h);display:flex;align-items:center;gap:16px;padding:0 calc(max(0px,(100% - 1500px)/2) + 22px);background:color-mix(in srgb,var(--hx-bg) 82%,transparent);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--hx-border)}
.hx-nav-zone{display:flex;align-items:center;gap:14px;flex:1;min-width:0}
.hx-nav-zone--right{justify-content:flex-end}
.hx-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:-.02em}
.hx-logo{width:26px;height:26px;border-radius:7px;background:linear-gradient(135deg,var(--hx-primary-2),var(--hx-primary))}
.hx-logo-img{display:block;height:30px;width:auto;max-width:200px}
.hx-spacer{flex:1}
.hx-searchbtn{display:flex;align-items:center;gap:10px;flex:0 1 360px;min-width:0;padding:8px 12px;border-radius:9px;border:1px solid var(--hx-border);background:var(--hx-bg-1);color:var(--hx-text-3);font-size:13.5px;cursor:pointer;font-family:inherit}
.hx-searchbtn:hover{border-color:var(--hx-primary)}
.hx-kbd{margin-left:auto;font-family:var(--hx-mono);font-size:11px;color:var(--hx-text-2);background:var(--hx-kbd);border:1px solid var(--hx-border);border-radius:5px;padding:2px 6px}
.hx-icon-btn{width:36px;height:36px;border-radius:9px;border:1px solid var(--hx-border);background:var(--hx-bg-1);color:var(--hx-text-2);cursor:pointer;font-size:16px;line-height:1}
.hx-icon-btn:hover{color:var(--hx-text);border-color:var(--hx-primary)}
.hx-icon-btn.hx-hamburger{display:none}

/* layout */
.hx-shell{display:flex;align-items:flex-start;max-width:1500px;margin:0 auto}
.hx-sidebar{position:sticky;top:var(--hx-nav-h);width:var(--hx-side-w);flex:0 0 var(--hx-side-w);height:calc(100vh - var(--hx-nav-h));overflow-y:auto;scrollbar-gutter:stable;border-right:1px solid var(--hx-border);background:var(--hx-bg-side);padding:18px 12px 60px;transition:width .26s var(--hx-ease)}
@media(min-width:981px){ .hx-collapsed .hx-sidebar{width:0;flex-basis:0;padding:0;overflow:hidden;border-right-color:transparent} }
.hx-side-head{display:flex;align-items:center;justify-content:space-between;padding:0 8px 8px}
.hx-side-ttl{font-size:11px;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--hx-text-3)}
.hx-collapse{width:26px;height:26px;border-radius:7px;border:1px solid var(--hx-border);background:var(--hx-bg-1);color:var(--hx-text-2);cursor:pointer}
.hx-nav-group{margin-bottom:22px}
.hx-nav-label{font-size:13.5px;font-weight:650;letter-spacing:-.01em;text-transform:none;color:var(--hx-text);padding:6px 10px 5px;display:block}
.hx-nav-link{display:block;padding:7.5px 10px;border-radius:8px;font-size:14px;letter-spacing:-.006em;color:var(--hx-text-2);position:relative}
.hx-nav-link:hover{background:var(--hx-bg-2);color:var(--hx-text)}
.hx-nav-link.is-active{color:var(--hx-primary-2);background:var(--hx-primary-soft);font-weight:550}

.hx-main{flex:1;min-width:0;display:flex;justify-content:center;padding:34px 52px 120px}
.hx-article{width:100%;max-width:var(--hx-content-max)}
.hx-article--wide{max-width:1120px}
.hx-crumbs{display:flex;gap:7px;font-size:13px;color:var(--hx-text-3);margin-bottom:14px}
.hx-h1{font-size:38px;font-weight:745;letter-spacing:-.03em;line-height:1.12;margin:0 0 12px}
.hx-lede{font-size:18px;line-height:1.65;color:var(--hx-text-2);margin:0 0 24px}

/* prose */
.hx-content{color:var(--hx-prose)}
.hx-content h2,.hx-content h3,.hx-content h4,.hx-content strong{color:var(--hx-text)}
.hx-content h2{font-size:26px;font-weight:720;letter-spacing:-.024em;line-height:1.25;margin:44px 0 14px;scroll-margin-top:80px}
.hx-content h3{font-size:19.5px;font-weight:670;letter-spacing:-.015em;margin:30px 0 10px;scroll-margin-top:80px}
.hx-content p{margin:0 0 18px}
.hx-content a{color:var(--hx-primary-2);border-bottom:1px solid color-mix(in srgb,var(--hx-primary) 35%,transparent)}
.hx-content .hx-cards__ttl a{color:inherit;border-bottom:none}
.hx-content ul,.hx-content ol{margin:0 0 16px;padding-left:22px}
.hx-content code:not(pre code){font-family:var(--hx-mono);font-size:.85em;background:var(--hx-code-bg);border:1px solid var(--hx-code-border);border-radius:5px;padding:1.5px 5px;color:var(--tok-var)}
/* Plain pres only: the lemma/code block owns its pre (.hx-code__pre), and
   double-boxing it added a border-in-border with stacked padding. */
/* Code is dark on both themes (the reference style): the dark palette is
   scoped to code containers, so the light theme keeps its own inline code. */
.hx-content pre,.hx-code{--hx-code-bg:#0e1016;--hx-code-border:#23273a;--hx-text:#e8eaf2;--hx-text-3:#8a92a8;--hx-border:#2a2f42;--hx-elev:#181b26;
  --tok-key:#c792ea;--tok-str:#9ece6a;--tok-num:#ff9e64;--tok-com:#697086;--tok-fn:#82aaff;--tok-var:#f07178;--tok-punc:#8a93a6}
.hx-content pre:not(.hx-code pre){position:relative;margin:18px 0;padding:15px 16px;border:1px solid var(--hx-code-border);border-radius:12px;background:var(--hx-code-bg);color:var(--hx-text);overflow-x:auto;font-family:var(--hx-mono);font-size:13.5px;line-height:1.65}
.hx-copy{position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:7px;border:1px solid var(--hx-border);background:var(--hx-elev);color:var(--hx-text-3);cursor:pointer;opacity:0;transition:.15s}
.hx-content pre:hover .hx-copy{opacity:1}

/* highlight.js token theming */
.hljs{color:var(--hx-text);background:transparent}
.hljs-keyword,.hljs-built_in,.hljs-type,.hljs-literal{color:var(--tok-key)}
.hljs-string,.hljs-meta .hljs-string,.hljs-regexp{color:var(--tok-str)}
.hljs-number{color:var(--tok-num)}
.hljs-comment{color:var(--tok-com);font-style:italic}
.hljs-title,.hljs-title.function_,.hljs-section{color:var(--tok-fn)}
.hljs-attr,.hljs-attribute,.hljs-property,.hljs-name{color:var(--hx-blue)}
.hljs-variable,.hljs-template-variable,.hljs-params{color:var(--tok-var)}
.hljs-punctuation,.hljs-bullet{color:var(--tok-punc)}

/* Block styles (callout, …) live in src/blocks/<name>/style.css — auto-enqueued per block. */

/* toc — connected guide-line tree: a 2px track, an accent thumb on the active
   segment, and short branch ticks into sub-items. */
.hx-toc{position:sticky;top:var(--hx-nav-h);width:var(--hx-toc-w);flex:0 0 var(--hx-toc-w);height:calc(100vh - var(--hx-nav-h));overflow-y:auto;padding:34px 20px}
.hx-toc-ttl{display:flex;align-items:center;gap:7px;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--hx-text-3);margin-bottom:12px;padding-left:14px}
.hx-toc-ttl svg{width:13px;height:13px;flex:none;opacity:.75}
.hx-toc-list{position:relative;border-left:2px solid var(--hx-border)}
.hx-toc-link{position:relative;display:block;padding:6px 14px;font-size:13.5px;line-height:1.45;color:var(--hx-text-2);cursor:pointer;border-radius:0 7px 7px 0;transition:color .15s,background .15s}
.hx-toc-link:hover{color:var(--hx-text);background:var(--hx-bg-2)}
.hx-toc-link.sub{padding-left:30px;font-size:13px;color:var(--hx-text-3)}
.hx-toc-link.sub::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:12px;height:2px;border-radius:0 2px 2px 0;background:var(--hx-border)}
.hx-toc-link.is-active{color:var(--hx-text);font-weight:640}
.hx-toc-link.is-active::after{content:"";position:absolute;left:-2px;top:5px;bottom:5px;width:2.5px;border-radius:3px;background:var(--hx-primary)}
.hx-toc-link.sub.is-active::before{background:var(--hx-primary)}

/* mobile "On this page" — collapsible card below the title (< 1181px) */
.hx-toc-m{display:none}
@media(max-width:1180px){
  .hx-toc-m{display:block;margin:2px 0 26px;border:1px solid var(--hx-border);border-radius:12px;background:var(--hx-bg-1)}
  .hx-toc-m>summary{display:flex;align-items:center;gap:8px;padding:11px 14px;font-size:12px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--hx-text-2);cursor:pointer;list-style:none;user-select:none}
  .hx-toc-m>summary::-webkit-details-marker{display:none}
  .hx-toc-m>summary svg{width:13px;height:13px;flex:none;opacity:.75}
  .hx-toc-m>summary .hx-toc-m-caret{margin-left:auto;transition:transform .18s var(--hx-ease)}
  .hx-toc-m[open]>summary .hx-toc-m-caret{transform:rotate(180deg)}
  .hx-toc-m .hx-toc-list{margin:2px 14px 12px}
}

/* mobile */
.hx-drawer-back{position:fixed;inset:0;z-index:55;background:rgba(5,6,10,.5);opacity:0;pointer-events:none;transition:.2s}
.hx-body.hx-drawer .hx-drawer-back{opacity:1;pointer-events:auto}
@media(max-width:1180px){ .hx-toc{display:none} }
@media(max-width:980px){
  .hx-main{padding:24px 20px 100px}
  .hx-sidebar{position:fixed;top:var(--hx-nav-h);left:0;z-index:58;width:300px;flex-basis:300px;transform:translateX(-104%);transition:transform .3s var(--hx-ease);box-shadow:var(--hx-shadow)}
  .hx-body.hx-drawer .hx-sidebar{transform:none}
  .hx-collapse{display:none}
  .hx-shell{display:block}
}

/* skip link */
.hx-skip{position:absolute;left:-9999px;top:0;z-index:100;padding:10px 14px;border-radius:0 0 10px 0;background:var(--hx-elev);color:var(--hx-text);border:1px solid var(--hx-border);font-size:13px}
.hx-skip:focus{left:0}

/* icons */
.hx-icon-btn{display:inline-grid;place-items:center}
.hx-icon-btn svg{width:17px;height:17px}
.hx-searchbtn svg{width:15px;height:15px;flex:0 0 auto}
.hx-collapse{display:grid;place-items:center}
.hx-collapse svg{width:14px;height:14px}
html[data-theme="dark"] .hx-ic-sun{display:none}
html[data-theme="light"] .hx-ic-moon{display:none}

/* header sidebar toggle (always visible on desktop) */
.hx-sidetoggle{display:none}
@media(min-width:981px){ .hx-sidetoggle{display:inline-grid} }
.hx-collapsed .hx-sidetoggle{color:var(--hx-primary-2);border-color:color-mix(in srgb,var(--hx-primary) 45%,var(--hx-border))}

/* heading anchor links — hover to reveal, click copies the URL */
.hx-content .hx-anchor{display:inline-flex;align-items:center;margin-left:8px;opacity:0;color:var(--hx-text-3);border-bottom:0;transition:opacity .12s}
.hx-content .hx-anchor svg{width:15px;height:15px}
.hx-content h2:hover .hx-anchor,.hx-content h3:hover .hx-anchor,.hx-content .hx-anchor:focus-visible{opacity:1}
.hx-content .hx-anchor:hover{color:var(--hx-primary-2)}
.hx-content .hx-anchor .hx-anchor-check{display:none;color:var(--hx-green)}
.hx-content .hx-anchor.is-copied .hx-anchor-link{display:none}
.hx-content .hx-anchor.is-copied .hx-anchor-check{display:inline}

/* copy button icon */
.hx-copy{display:grid;place-items:center}
.hx-copy svg{width:14px;height:14px}
.hx-copy.is-done{color:var(--hx-green);opacity:1}

/* card grid (archive / taxonomy views) */
.hx-cardgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin-top:22px}
.hx-card{display:flex;flex-direction:column;gap:6px;padding:18px;border:1px solid var(--hx-border);border-radius:14px;background:var(--hx-bg-1);transition:border-color .15s,transform .15s}
.hx-card:hover{border-color:var(--hx-primary);transform:translateY(-1px)}
.hx-card-ttl{font-weight:650;font-size:16px;letter-spacing:-.014em}
.hx-card--art{padding-top:0;overflow:hidden}
.hx-card-art{display:grid;place-items:center;height:118px;margin:0 -18px 8px;background:linear-gradient(120deg,#a5b4fc,#f0abfc 55%,#fcd34d)}
.hx-cardgrid .hx-card--art:nth-child(4n+2) .hx-card-art{background:linear-gradient(120deg,#fde68a,#fca5a5 50%,#f0abfc)}
.hx-cardgrid .hx-card--art:nth-child(4n+3) .hx-card-art{background:linear-gradient(120deg,#86efac,#67e8f9 55%,#a5b4fc)}
.hx-cardgrid .hx-card--art:nth-child(4n) .hx-card-art{background:linear-gradient(120deg,#67e8f9,#a5b4fc 50%,#f0abfc)}
html[data-theme="dark"] .hx-card-art{filter:saturate(.82) brightness(.9)}
.hx-card-art-ic{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#fff;box-shadow:0 2px 8px rgba(15,17,34,.18)}
.hx-card-art-ic svg{width:22px;height:22px;stroke:#3b3f58}
.hx-cardgrid--list .hx-card--art{padding-top:15px;overflow:visible}
.hx-cardgrid--list .hx-card-art{display:none}
.hx-card-desc{font-size:14px;color:var(--hx-text-2);line-height:1.55}

/* collection tabs bar */
:root{--hx-tabs-h:42px}
.hx-tabsbar{position:sticky;top:var(--hx-nav-h);z-index:59;display:flex;gap:4px;height:var(--hx-tabs-h);align-items:stretch;padding:0 calc(max(0px,(100% - 1500px)/2) + 10px);background:color-mix(in srgb,var(--hx-bg) 88%,transparent);backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--hx-border);overflow-x:auto;scrollbar-width:none}
.hx-tabsbar::-webkit-scrollbar{display:none}
.hx-tab-link{position:relative;display:flex;align-items:center;padding:0 12px;font-size:14.5px;font-weight:550;letter-spacing:-.01em;color:var(--hx-text-3);white-space:nowrap}
.hx-tab-link:hover{color:var(--hx-text)}
.hx-tab-link.is-active{color:var(--hx-primary-2)}
.hx-tab-link.is-active::after{content:"";position:absolute;left:8px;right:8px;bottom:-1px;height:2px;border-radius:2px;background:var(--hx-primary)}
.hx-has-tabs .hx-sidebar,.hx-has-tabs .hx-toc{top:calc(var(--hx-nav-h) + var(--hx-tabs-h));height:calc(100vh - var(--hx-nav-h) - var(--hx-tabs-h))}
@media(max-width:980px){
  .hx-has-tabs .hx-sidebar{top:calc(var(--hx-nav-h) + var(--hx-tabs-h))}
}

/* changelog feed (collection layout) */
.hx-feed{margin-top:26px}
.hx-feed-item{padding:22px 0;border-bottom:1px solid var(--hx-border)}
.hx-feed-item:first-child{padding-top:8px}
.hx-feed-item:last-child{border-bottom:0}
.hx-feed-date{font-size:12px;color:var(--hx-text-3);font-weight:600;letter-spacing:.04em;text-transform:uppercase}
.hx-feed-ttl{margin:6px 0 8px;font-size:20px;font-weight:650;letter-spacing:-.015em}
.hx-feed-ttl a:hover{color:var(--hx-primary-2)}
.hx-feed-excerpt{font-size:14.5px;color:var(--hx-text-2);line-height:1.6}

/* theme presets (custom primary from settings overrides via preset selector) */
html[data-hx-preset="indigo"]{--hx-primary:#635bff;--hx-primary-2:#867dff;--hx-primary-soft:rgba(99,91,255,.13)}
html[data-hx-preset="mint"]{--hx-primary:#0a8754;--hx-primary-2:#2eb37f;--hx-primary-soft:rgba(10,135,84,.12)}
html[data-hx-preset="slate"]{--hx-primary:#475569;--hx-primary-2:#64748b;--hx-primary-soft:rgba(71,85,105,.14)}

/* header CTA links / buttons */
.hx-cta-link{font-size:13.5px;font-weight:550;color:var(--hx-text-2);padding:7px 10px;border-radius:8px;white-space:nowrap}
.hx-cta-link:hover{color:var(--hx-text)}
.hx-body a.hx-cta-btn{font-size:13.5px;font-weight:600;color:#fff;background:var(--hx-primary);padding:8px 13px;border-radius:9px;white-space:nowrap;transition:filter .15s}
.hx-body a.hx-cta-btn:hover{filter:brightness(1.08);color:#fff}
@media(max-width:700px){.hx-cta-link{display:none}}

/* page actions (Copy for LLM / View as Markdown) */
.hx-pageactions{display:flex;gap:6px;flex-wrap:wrap;margin:2px 0 6px;padding-bottom:14px;border-bottom:1px solid var(--hx-border)}
.hx-pa-meta{margin-left:auto;display:flex;align-items:center;gap:8px;color:var(--hx-text-3);font-size:13px;letter-spacing:-.005em;white-space:nowrap}
@media (max-width:640px){.hx-pa-meta{margin-left:0;flex-basis:100%}}
.hx-pa{display:inline-flex;align-items:center;gap:7px;padding:6px 10px;border-radius:8px;border:1px solid transparent;background:transparent;color:var(--hx-text-3);font-size:12.5px;font-weight:550;font-family:inherit;cursor:pointer;text-decoration:none}
.hx-pa:hover{color:var(--hx-text);background:var(--hx-bg-2)}
.hx-pa.is-done{color:var(--hx-green)}
.hx-pa svg{width:14px;height:14px;flex:0 0 auto}

/* feedback widget */
.hx-feedback{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:44px;padding:16px 18px;border:1px solid var(--hx-border);border-radius:13px;background:var(--hx-bg-1)}
.hx-feedback-q{font-size:14px;font-weight:600}
.hx-fb{display:inline-flex;align-items:center;gap:7px;padding:7px 13px;border-radius:9px;border:1px solid var(--hx-border);background:var(--hx-elev);color:var(--hx-text-2);font-size:13px;font-weight:550;font-family:inherit;cursor:pointer}
.hx-fb:hover{border-color:var(--hx-primary);color:var(--hx-text)}
.hx-fb svg{width:14px;height:14px}
.hx-feedback-done{font-size:13.5px;color:var(--hx-green);font-weight:550}

/* smooth in-page scrolling (ToC + anchors) */
@media (prefers-reduced-motion:no-preference){
  html{scroll-behavior:smooth}
}

/* previous / next pagination */
.hx-prevnext{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:44px;padding-top:22px;border-top:1px solid var(--hx-border)}
.hx-pn{display:flex;flex-direction:column;gap:3px;padding:14px 16px;border:1px solid var(--hx-border);border-radius:12px;background:var(--hx-bg-1);transition:border-color .15s}
.hx-pn:hover{border-color:var(--hx-primary)}
.hx-pn--next{text-align:right;align-items:flex-end}
.hx-pn-label{font-size:12px;font-weight:600;color:var(--hx-text-3)}
.hx-pn-title{font-size:14.5px;font-weight:600;color:var(--hx-text)}
.hx-pn:hover .hx-pn-title{color:var(--hx-primary-2)}
@media(max-width:600px){.hx-prevnext{grid-template-columns:1fr}}
/* (landing-page gradient cards are part of the Cards block — see src/blocks/cards) */

/* ⌘K search modal */
.hx-sm{position:fixed;inset:0;z-index:100;display:none}
.hx-sm.is-open{display:block}
.hx-sm-back{position:absolute;inset:0;background:rgba(5,6,10,.55);backdrop-filter:blur(3px)}
.hx-sm-panel{position:relative;width:min(600px,calc(100vw - 32px));margin:12vh auto 0;border-radius:16px;border:1px solid var(--hx-border);background:var(--hx-elev);box-shadow:0 24px 80px rgba(0,0,0,.35);overflow:hidden}
.hx-sm-inputwrap{display:flex;align-items:center;gap:11px;padding:15px 16px;border-bottom:1px solid var(--hx-border);color:var(--hx-text-3)}
.hx-sm-inputwrap svg{width:17px;height:17px;flex:0 0 auto}
.hx-sm-input{flex:1;border:0;outline:0;background:transparent;font:inherit;font-size:15.5px;color:var(--hx-text)}
.hx-sm-input::placeholder{color:var(--hx-text-3)}
.hx-sm-esc{border:1px solid var(--hx-border);background:var(--hx-kbd);color:var(--hx-text-3);font-family:var(--hx-mono);font-size:10.5px;border-radius:5px;padding:3px 6px;cursor:pointer}
.hx-sm-results{max-height:min(46vh,420px);overflow-y:auto;padding:8px}
.hx-sm-heading{font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--hx-text-3);padding:8px 10px 4px}
.hx-sm-empty{padding:26px 12px;text-align:center;color:var(--hx-text-3);font-size:14px}
.hx-sm-item{display:block;padding:10px 12px;border-radius:10px;cursor:pointer}
.hx-sm-item.is-active{background:var(--hx-primary-soft)}
.hx-sm-item-ttl{font-size:14.5px;font-weight:600;color:var(--hx-text)}
.hx-sm-item.is-active .hx-sm-item-ttl{color:var(--hx-primary-2)}
.hx-sm-item-badge{margin-left:8px;font-size:11px;font-weight:600;color:var(--hx-text-3);background:var(--hx-bg-2);border:1px solid var(--hx-border);border-radius:5px;padding:1.5px 6px;vertical-align:1px}
.hx-sm-item-desc{display:block;margin-top:2px;font-size:12.5px;color:var(--hx-text-3);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hx-sm-foot{display:flex;gap:16px;padding:9px 16px;border-top:1px solid var(--hx-border);font-size:11.5px;color:var(--hx-text-3)}
body.hx-sm-lock{overflow:hidden}

@media (prefers-reduced-motion:reduce){
  .hx-sidebar,.hx-card,.hx-drawer-back,.hx-copy,.hx-hero-search,.hx-hc-card,.hx-hc-row{transition:none;transform:none}
}

/* ---- nav + tab icons (0.16.0) ---- */
.hx-nav-ic,.hx-tab-ic{display:inline-flex;flex:0 0 auto;color:var(--hx-text-3)}
.hx-nav-ic{vertical-align:-2.5px;margin-right:9px}
.hx-tab-ic{margin-right:7px}
.hx-nav-ic svg,.hx-tab-ic svg{width:15px;height:15px}
.hx-nav-link.is-active .hx-nav-ic,.hx-nav-link:hover .hx-nav-ic{color:var(--hx-primary-2)}
.hx-tab-link.is-active .hx-tab-ic{color:var(--hx-primary-2)}
.hx-tab-link:hover .hx-tab-ic{color:var(--hx-text)}

/* ---- glossary tooltips ---- */
.hx-term{border-bottom:1px dotted color-mix(in srgb,var(--hx-primary) 65%,transparent);cursor:help;position:relative}
.hx-term::after{content:attr(data-hx-def);position:absolute;bottom:calc(100% + 9px);left:50%;transform:translateX(-50%) translateY(3px);opacity:0;pointer-events:none;width:max-content;max-width:280px;background:var(--hx-elev);color:var(--hx-text);border:1px solid var(--hx-border);box-shadow:var(--hx-shadow);border-radius:10px;padding:9px 12px;font-size:12.5px;line-height:1.55;font-weight:400;letter-spacing:0;white-space:normal;z-index:70;transition:opacity .14s,transform .14s}
.hx-term:hover::after,.hx-term:focus::after{opacity:1;transform:translateX(-50%) translateY(0)}

/* ---- image lightbox ---- */
.hx-content img:not(a img){cursor:zoom-in;border-radius:10px;max-width:100%;height:auto}
.hx-lb{position:fixed;inset:0;z-index:110;display:none;flex-direction:column;align-items:center;justify-content:center;gap:14px;background:rgba(5,6,10,.84);backdrop-filter:blur(5px);cursor:zoom-out;padding:32px}
.hx-lb.is-open{display:flex}
.hx-lb img{max-width:92vw;max-height:82vh;border-radius:12px;box-shadow:0 24px 80px rgba(0,0,0,.5)}
.hx-lb-cap{color:#d5d8e0;font-size:13.5px;max-width:70ch;text-align:center}
.hx-lb-cap:empty{display:none}

/* ---- changelog subscribe + RSS ---- */
.hx-subscribe{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 30px}
.hx-subscribe-form{display:flex;gap:8px}
.hx-subscribe-input{width:250px;max-width:56vw;padding:9px 13px;border-radius:9px;border:1px solid var(--hx-border);background:var(--hx-elev);color:var(--hx-text);font:inherit;font-size:14px}
.hx-subscribe-input:focus{outline:none;border-color:var(--hx-primary)}
.hx-subscribe-btn{padding:9px 15px;border-radius:9px;border:0;background:var(--hx-primary);color:#fff;font:inherit;font-size:14px;font-weight:600;cursor:pointer}
.hx-subscribe-btn:hover{filter:brightness(1.07)}
.hx-subscribe-rss{display:inline-flex;align-items:center;gap:6px;color:var(--hx-text-3);font-size:13.5px;font-weight:550}
.hx-subscribe-rss:hover{color:var(--hx-primary-2)}
.hx-subscribe-rss svg{width:14px;height:14px}
.hx-subscribe-done{font-size:14px;color:var(--hx-green);font-weight:550}

/* ---- roadmap board ---- */
.hx-rm{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;align-items:start;margin-top:26px}
@media(max-width:1100px){.hx-rm{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:640px){.hx-rm{grid-template-columns:1fr}}
.hx-rm-col{background:var(--hx-bg-1);border:1px solid var(--hx-border);border-radius:14px;padding:12px;display:flex;flex-direction:column;gap:9px;min-height:120px}
.hx-rm-colhead{display:flex;align-items:center;gap:9px;padding:2px 4px 6px}
.hx-rm-count{font-size:12.5px;font-weight:600;color:var(--hx-text-3)}
.hx-rm-badge{display:inline-flex;align-items:center;font-size:12px;font-weight:650;letter-spacing:.01em;padding:3px 9px;border-radius:999px;border:1px solid transparent}
.hx-rm-badge--backlog{color:var(--hx-text-2);background:var(--hx-bg-2);border-color:var(--hx-border)}
.hx-rm-badge--next{color:#b45309;background:rgba(217,119,6,.12);border-color:rgba(217,119,6,.25)}
.hx-rm-badge--progress{color:#2563eb;background:rgba(37,99,235,.1);border-color:rgba(37,99,235,.25)}
.hx-rm-badge--done{color:var(--hx-green);background:rgba(16,150,90,.1);border-color:rgba(16,150,90,.28)}
html[data-theme="dark"] .hx-rm-badge--next{color:#fbbf24}
html[data-theme="dark"] .hx-rm-badge--progress{color:#93b4ff}
.hx-rm-col--next{background:color-mix(in srgb,#d97706 3%,var(--hx-bg-1))}
.hx-rm-col--progress{background:color-mix(in srgb,#2563eb 3%,var(--hx-bg-1))}
.hx-rm-card{appearance:none;text-align:left;font:inherit;color:var(--hx-text);background:var(--hx-elev);border:1px solid var(--hx-border);border-radius:11px;padding:12px 14px;cursor:pointer;display:flex;flex-direction:column;gap:5px;transition:border-color .14s,transform .14s var(--hx-ease)}
.hx-rm-card:hover{border-color:color-mix(in srgb,var(--hx-primary) 45%,var(--hx-border));transform:translateY(-1px)}
.hx-rm-ttl{display:flex;align-items:flex-start;gap:8px;font-size:14px;font-weight:600;letter-spacing:-.01em;line-height:1.4}
.hx-rm-ttl svg{width:15px;height:15px;flex:0 0 auto;margin-top:2px;color:var(--hx-text-3)}
.hx-rm-desc{font-size:13px;line-height:1.5;color:var(--hx-text-3);padding-left:23px}

/* roadmap card modal */
.hx-rmm{position:fixed;inset:0;z-index:112;display:none;align-items:center;justify-content:center;padding:24px}
.hx-rmm.is-open{display:flex}
.hx-rmm-back{position:absolute;inset:0;background:rgba(5,6,10,.55);backdrop-filter:blur(4px)}
.hx-rmm-panel{position:relative;width:min(880px,94vw);background:var(--hx-elev);border:1px solid var(--hx-border);border-radius:16px;box-shadow:var(--hx-shadow);overflow:hidden}
.hx-rmm-head{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 20px;border-bottom:1px solid var(--hx-border)}
.hx-rmm-ttl{margin:0;font-size:17px;font-weight:650;letter-spacing:-.015em}
.hx-rmm-x{display:grid;place-items:center;width:30px;height:30px;border-radius:8px;border:0;background:transparent;color:var(--hx-text-3);cursor:pointer}
.hx-rmm-x:hover{color:var(--hx-text);background:var(--hx-bg-2)}
.hx-rmm-x svg{width:15px;height:15px}
.hx-rmm-cols{display:grid;grid-template-columns:1.7fr 1fr;min-height:220px}
@media(max-width:640px){.hx-rmm-cols{grid-template-columns:1fr}}
.hx-rmm-desc{padding:18px 20px}
.hx-rmm-desc p{margin:10px 0 0;font-size:14.5px;line-height:1.7;color:var(--hx-text-2)}
.hx-rmm-meta{padding:18px 20px;border-left:1px solid var(--hx-border)}
@media(max-width:640px){.hx-rmm-meta{border-left:0;border-top:1px solid var(--hx-border)}}
.hx-rmm-lbl{display:block;font-size:11px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;color:var(--hx-text-3)}
.hx-rmm-row{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1px solid var(--hx-border);font-size:13.5px;color:var(--hx-text-2)}
.hx-rmm-row:last-child{border-bottom:0}
.hx-rmm-row[hidden]{display:none}

/* ---- nested docs (0.17.0): parent rows with carets, collapsible children ---- */
.hx-nav-row{display:flex;align-items:center}
.hx-nav-row .hx-nav-link{flex:1;min-width:0}
.hx-nav-caret{display:grid;place-items:center;flex:0 0 auto;width:24px;height:24px;margin-left:2px;border:0;border-radius:6px;background:transparent;color:var(--hx-text-3);cursor:pointer}
.hx-nav-caret:hover{background:var(--hx-bg-2);color:var(--hx-text)}
.hx-nav-caret svg{width:13px;height:13px;transition:transform .18s var(--hx-ease)}
.hx-nav-item.is-open>.hx-nav-row .hx-nav-caret svg{transform:rotate(90deg)}
.hx-nav-sub{display:none;margin-left:13px;padding-left:9px;border-left:1px solid var(--hx-border)}
.hx-nav-item.is-open>.hx-nav-sub{display:block}
@media (prefers-reduced-motion:reduce){.hx-nav-caret svg{transition:none}}

/* no-sidebar pages (roadmap board): the sidebar controls have nothing to open */
.hx-body.hx-home .hx-icon-btn.hx-hamburger,.hx-body.hx-home .hx-sidetoggle{display:none}

/* ---- tag chips (0.18.0) ---- */
.hx-tags{display:flex;flex-wrap:wrap;gap:8px;margin:26px 0 6px}
.hx-tags--feed{margin:10px 0 0}
.hx-body a.hx-tag{display:inline-flex;align-items:center;font-size:12.5px;font-weight:550;letter-spacing:0;color:var(--hx-text-2);background:var(--hx-bg-2);border:1px solid var(--hx-border);border-radius:999px;padding:3.5px 11px;transition:color .14s,border-color .14s}
.hx-body a.hx-tag:hover{color:var(--hx-primary-2);border-color:color-mix(in srgb,var(--hx-primary) 45%,var(--hx-border))}

/* ---- popular docs strip (0.20.0) ---- */
.hx-popular{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 26px;padding:12px 16px;border:1px solid var(--hx-border);border-radius:12px;background:var(--hx-bg-1)}
.hx-popular-ttl{display:inline-flex;align-items:center;gap:7px;font-size:12px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--hx-text-3)}
.hx-popular-ttl svg{width:14px;height:14px;color:var(--hx-green)}
.hx-body a.hx-popular-link{font-size:13.5px;font-weight:550;color:var(--hx-text-2);padding:4px 10px;border-radius:999px;background:var(--hx-bg-2);border:1px solid var(--hx-border)}
.hx-body a.hx-popular-link:hover{color:var(--hx-primary-2);border-color:color-mix(in srgb,var(--hx-primary) 45%,var(--hx-border))}

/* ---- mobile shell, documentation.ai-style (0.20.0) ---- */
.hx-searchbtn-mobile{display:none}
.hx-mobilebar{display:none}
@media(max-width:980px){
  .hx-topnav{gap:10px}
  .hx-brand{font-size:15.5px}
  .hx-searchbtn{display:none}          /* wide bar → icon button */
  .hx-icon-btn.hx-searchbtn-mobile{display:inline-grid}
  .hx-cta-link,.hx-body a.hx-cta-btn{display:none}  /* header stays minimal on mobile */
  .hx-tabsbar{display:none}            /* sections move into the drawer */

  .hx-mobilebar{position:sticky;top:var(--hx-nav-h);z-index:55;display:flex;align-items:center;gap:10px;padding:8px 14px;background:color-mix(in srgb,var(--hx-bg) 88%,transparent);backdrop-filter:blur(10px);border-bottom:1px solid var(--hx-border)}
  .hx-mobilebar .hx-icon-btn.hx-hamburger{display:inline-grid;width:32px;height:32px;border:0;background:transparent;color:var(--hx-text-2)}
  .hx-mobilecrumb{display:flex;align-items:center;gap:8px;min-width:0;font-size:13.5px;color:var(--hx-text-3);cursor:pointer}
  .hx-mobilecrumb svg{width:13px;height:13px;flex:0 0 auto;color:var(--hx-text-3)}
  .hx-mobilecrumb strong{color:var(--hx-text);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
}

/* drawer section switcher — mobile only */
.hx-side-tabs{display:none}
@media(max-width:980px){
  .hx-side-tabs{display:block;margin:0 0 16px;padding:0 0 14px;border-bottom:1px solid var(--hx-border)}
  .hx-side-tabs .hx-tab-link{display:flex;align-items:center;padding:8.5px 10px;border-radius:8px;font-size:14.5px;color:var(--hx-text-2)}
  .hx-side-tabs .hx-tab-link:hover{background:var(--hx-bg-2);color:var(--hx-text)}
  .hx-side-tabs .hx-tab-link.is-active{background:var(--hx-primary-soft);color:var(--hx-primary-2);font-weight:550}
  .hx-side-tabs .hx-tab-link.is-active::after{display:none}
  .hx-side-head{display:none}          /* the crumb bar already names the section */
}

@media(max-width:640px){
  .hx-h1{font-size:30px}
  .hx-lede{font-size:16.5px}
  .hx-main{padding:20px 16px 90px}
  .hx-content h2{font-size:23px}
}

/* ---- changelog feed images (0.21.0) ---- */
.hx-feed-media{display:block;margin:14px 0 12px;border-radius:12px;overflow:hidden;border:1px solid var(--hx-border)}
.hx-feed-media img{display:block;width:100%;height:auto}

/* ---- versioning (0.22.0, Pro) ---- */
.hx-side-version{padding:0 8px 12px}
.hx-version{width:100%;padding:7px 10px;border-radius:9px;border:1px solid var(--hx-border);background:var(--hx-bg-1);color:var(--hx-text);font:inherit;font-size:13.5px;cursor:pointer}
.hx-version:focus{outline:none;border-color:var(--hx-primary)}
.hx-verbanner{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin:0 0 22px;padding:11px 14px;border:1px solid color-mix(in srgb,#d97706 35%,var(--hx-border));border-radius:11px;background:color-mix(in srgb,#d97706 7%,var(--hx-bg-1));font-size:13.5px;color:var(--hx-text-2)}
.hx-verbanner svg{width:16px;height:16px;flex:0 0 auto;color:#b45309}
html[data-theme="dark"] .hx-verbanner svg{color:#fbbf24}
.hx-body .hx-verbanner a{color:var(--hx-primary-2);font-weight:600}

/* ---- print / PDF export (0.24.0) ---- */
@media print{
  .hx-topnav,.hx-tabsbar,.hx-mobilebar,.hx-sidebar,.hx-toc,.hx-progress,.hx-pageactions,.hx-pa,.hx-prevnext,.hx-feedback,.hx-tags,.hx-subscribe,.hx-anchor,.hx-copy,.hx-verbanner a{display:none !important}
  .hx-shell,.hx-main{display:block;padding:0;max-width:none}
  .hx-article{max-width:none}
  .hx-body{font-size:12pt;color:#000;background:#fff}
  .hx-content{color:#000}
  .hx-content pre{white-space:pre-wrap;word-break:break-word;border:1px solid #ddd}
  .hx-content a{color:#000;border-bottom:none;text-decoration:underline}
  .hx-h1{font-size:24pt}
}

/* ---- glossary page + changelog hero + feedback comment (0.26.0) ---- */
.hx-glossary-letter{font-size:15px;font-weight:700;color:var(--hx-primary-2);margin:30px 0 8px;letter-spacing:.04em}
.hx-glossary{margin:0;border-top:1px solid var(--hx-border)}
.hx-glossary dt{font-weight:650;padding:12px 0 2px}
.hx-glossary dd{margin:0;padding:0 0 12px;color:var(--hx-text-2);border-bottom:1px solid var(--hx-border)}
.hx-hero-img{margin:4px 0 22px;border-radius:14px;overflow:hidden;border:1px solid var(--hx-border)}
.hx-hero-img img{display:block;width:100%;height:auto}
.hx-fb-comment{display:none;margin-top:12px;gap:8px}
.hx-fb-comment.is-open{display:flex}
.hx-fb-comment textarea{flex:1;min-height:60px;padding:9px 12px;border-radius:9px;border:1px solid var(--hx-border);background:var(--hx-elev);color:var(--hx-text);font:inherit;font-size:13.5px;resize:vertical}
.hx-fb-comment button{align-self:flex-end;padding:8px 14px;border-radius:9px;border:0;background:var(--hx-primary);color:#fff;font:inherit;font-size:13px;font-weight:600;cursor:pointer}

/* ---- page-actions split button + menu (0.27.0) ---- */
.hx-pa-group{position:relative;display:inline-flex;align-items:center}
.hx-pa-caret{padding:4px 6px;margin-left:-4px}
.hx-pa-caret svg{width:13px;height:13px}
.hx-pa-menu{position:absolute;top:calc(100% + 7px);left:0;z-index:70;min-width:200px;background:var(--hx-elev);border:1px solid var(--hx-border);border-radius:11px;box-shadow:var(--hx-shadow);padding:6px;display:flex;flex-direction:column;gap:1px}
.hx-pa-menu[hidden]{display:none}
.hx-pa-menu a,.hx-pa-menu button{display:flex;align-items:center;gap:8px;padding:8px 11px;border-radius:8px;font-size:13px;color:var(--hx-text-2);background:none;border:0;cursor:pointer;text-align:left;font-family:inherit}
.hx-pa-menu a:hover,.hx-pa-menu button:hover{background:var(--hx-bg-2);color:var(--hx-text)}

/* ---- sidebar HTTP method badges (0.28.1) ---- */
.hx-nav-method{display:inline-block;min-width:34px;margin-right:8px;padding:1.5px 5px;border-radius:5px;font-family:var(--hx-mono);font-size:9.5px;font-weight:700;letter-spacing:.04em;text-align:center;vertical-align:1px}
.hx-nav-method--get{color:#0a8754;background:rgba(16,150,90,.12)}

/* page badges: an optional pill after the page name (editor > Lemma Docs panel) */
.hx-nav-badge{display:inline-block;margin-left:7px;padding:1.5px 8px;border-radius:999px;font-size:10.5px;font-weight:600;line-height:1.5;letter-spacing:.02em;vertical-align:1px}
.hx-nav-badge--blue{color:#2563eb;background:color-mix(in srgb,#3b82f6 15%,transparent)}
.hx-nav-badge--purple{color:#7c3aed;background:color-mix(in srgb,#8b5cf6 15%,transparent)}
.hx-nav-badge--green{color:#15803d;background:color-mix(in srgb,#22c55e 16%,transparent)}
.hx-nav-badge--amber{color:#b45309;background:color-mix(in srgb,#f59e0b 18%,transparent)}
.hx-nav-badge--red{color:#dc2626;background:color-mix(in srgb,#ef4444 14%,transparent)}
.hx-nav-badge--gray{color:#4b5563;background:color-mix(in srgb,#6b7280 16%,transparent)}
html[data-theme="dark"] .hx-nav-badge--blue{color:#8ab6ff;background:color-mix(in srgb,#3b82f6 26%,transparent)}
html[data-theme="dark"] .hx-nav-badge--purple{color:#b39aff;background:color-mix(in srgb,#8b5cf6 26%,transparent)}
html[data-theme="dark"] .hx-nav-badge--green{color:#5fd68a;background:color-mix(in srgb,#22c55e 22%,transparent)}
html[data-theme="dark"] .hx-nav-badge--amber{color:#fbbf24;background:color-mix(in srgb,#f59e0b 22%,transparent)}
html[data-theme="dark"] .hx-nav-badge--red{color:#f88;background:color-mix(in srgb,#ef4444 24%,transparent)}
html[data-theme="dark"] .hx-nav-badge--gray{color:#9ca3af;background:color-mix(in srgb,#6b7280 26%,transparent)}
.hx-nav-method--post{color:#2563eb;background:rgba(37,99,235,.12)}
.hx-nav-method--put,.hx-nav-method--patch{color:#b45309;background:rgba(217,119,6,.12)}
.hx-nav-method--delete{color:#dc2626;background:rgba(220,38,38,.12)}
html[data-theme="dark"] .hx-nav-method--get{color:#34d399}
html[data-theme="dark"] .hx-nav-method--post{color:#93b4ff}
html[data-theme="dark"] .hx-nav-method--put,html[data-theme="dark"] .hx-nav-method--patch{color:#fbbf24}
html[data-theme="dark"] .hx-nav-method--delete{color:#f87171}

/* ---- Structural layout options (nav_layout / nav_active / landing_style / utilities_rail) ---- */
.hx-side-search{display:flex;width:calc(100% - 28px);margin:14px 14px 0;flex:none}
.hx-side-switch{margin:10px 14px 0;position:relative}
.hx-side-switch summary{display:flex;align-items:center;gap:8px;list-style:none;cursor:pointer;padding:9px 12px;border:1px solid var(--hx-border);border-radius:9px;background:var(--hx-bg-1);font-size:13.5px;font-weight:600}
.hx-side-switch summary::-webkit-details-marker{display:none}
.hx-side-switch summary span{flex:1;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hx-side-switch summary svg{width:14px;height:14px;color:var(--hx-text-3);transition:transform .15s var(--hx-ease)}
.hx-side-switch[open] summary svg{transform:rotate(180deg)}
.hx-side-switch-panel{position:absolute;left:0;right:0;top:calc(100% + 6px);z-index:40;display:flex;flex-direction:column;gap:2px;padding:6px;border:1px solid var(--hx-border);border-radius:11px;background:var(--hx-elev);box-shadow:var(--hx-shadow)}
.hx-side-switch-panel .hx-tab-link{display:flex;align-items:center;gap:9px;padding:8px 10px;border-radius:8px;font-size:13.5px}
.hx-side-switch-panel .hx-tab-link:hover{background:var(--hx-bg-2)}
.hx-side-switch-panel .hx-tab-link.is-active{color:var(--hx-primary);background:var(--hx-primary-soft)}
html[data-hx-nav="sidebar"] .hx-side-head{margin-top:12px}
.hx-rail{position:sticky;top:var(--hx-nav-h);align-self:flex-start;display:flex;flex-direction:column;gap:6px;width:58px;padding:14px 9px;height:calc(100vh - var(--hx-nav-h));border-right:1px solid var(--hx-border);background:var(--hx-bg-side)}
.hx-rail .hx-tab-link{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;font-size:0;color:var(--hx-text-2)}
.hx-rail .hx-tab-link:hover{background:var(--hx-bg-2);color:var(--hx-text)}
.hx-rail .hx-tab-link.is-active{background:var(--hx-primary-soft);color:var(--hx-primary)}
.hx-rail .hx-tab-link svg{width:19px;height:19px}
html[data-hx-navactive="rule"] .hx-nav .is-active{background:transparent;border-radius:0;box-shadow:inset 2.5px 0 0 var(--hx-primary);color:var(--hx-primary);font-weight:600}
.hx-cardgrid--list{grid-template-columns:1fr;gap:10px}
.hx-cardgrid--list .hx-card{flex-direction:row;align-items:baseline;gap:16px;padding:15px 18px}
.hx-cardgrid--list .hx-card-ttl{flex:0 0 220px}
.hx-cardgrid--list .hx-card-desc{flex:1}
.hx-cardgrid--list .hx-card::after{content:"→";color:var(--hx-text-3);font-size:14px}
.hx-cardgrid--list .hx-card:hover::after{color:var(--hx-primary)}
body.admin-bar .hx-progress{top:32px}
@media screen and (max-width:782px){body.admin-bar .hx-progress{top:46px}}
.hx-toc .hx-pageactions{display:flex;flex-direction:column;align-items:stretch;gap:8px;border-bottom:1px solid var(--hx-border);padding-bottom:16px;margin:0 0 16px}
.hx-toc .hx-pa-meta{margin-left:0;font-size:12.5px;white-space:normal}
@media (max-width:980px){.hx-rail,.hx-side-switch,.hx-side-search{display:none}}
@media (max-width:1100px){.hx-cardgrid--list .hx-card{flex-wrap:wrap}.hx-cardgrid--list .hx-card-ttl{flex-basis:100%}}

/* ---- footer links ---- */
.hx-footer{border-top:1px solid var(--hx-border);margin-top:44px;background:var(--hx-bg)}
.hx-footer-in{max-width:1500px;margin:0 auto;padding:18px 22px;display:flex;align-items:center;gap:18px;flex-wrap:wrap;font-size:13px;color:var(--hx-text-3)}
.hx-footer-links{display:flex;gap:16px;flex-wrap:wrap;margin-left:auto}
.hx-footer-links a{color:var(--hx-text-2)}
.hx-footer-links a:hover{color:var(--hx-primary)}
@media print{.hx-footer{display:none}}

/* ---- back to top ---- */
.hx-top{position:fixed;bottom:22px;z-index:90;width:42px;height:42px;display:grid;place-items:center;border:1px solid var(--hx-border);border-radius:999px;background:var(--hx-elev);color:var(--hx-text-2);cursor:pointer;box-shadow:var(--hx-shadow);opacity:0;transform:translateY(8px);pointer-events:none;transition:opacity .18s var(--hx-ease),transform .18s var(--hx-ease)}
.hx-top.is-show{opacity:1;transform:none;pointer-events:auto}
.hx-top:hover{color:var(--hx-primary);border-color:var(--hx-primary)}
.hx-top svg{width:18px;height:18px}
.hx-top--right{right:22px}
.hx-top--left{left:22px}
@media (max-width:640px){.hx-top{width:38px;height:38px;bottom:calc(14px + env(safe-area-inset-bottom))}.hx-top--right{right:14px}.hx-top--left{left:14px}}
@media print{.hx-top{display:none !important}}

/* ---- Help center mode (site_mode = helpcenter): hero + category grid + article lists ---- */
[data-hx-mode="hc"] .hx-sidetoggle{display:none}
.hx-main.hx-hc{display:block;padding:0 0 90px}

/* hero */
.hx-hc-hero{padding:72px 22px 62px;text-align:center;border-bottom:1px solid var(--hx-border);background:var(--hx-bg-1)}
.hx-hc-hero-in{max-width:760px;margin:0 auto}
.hx-hc-ttl{margin:0;font-size:clamp(28px,4.2vw,40px);font-weight:800;letter-spacing:-.03em;line-height:1.15}
.hx-hc-tag{margin:12px auto 0;max-width:560px;font-size:16.5px;line-height:1.6;color:var(--hx-text-2)}
.hx-hero-search{display:flex;align-items:center;gap:12px;width:min(560px,100%);margin:26px auto 0;padding:15px 18px;border-radius:13px;border:1px solid color-mix(in srgb,var(--hx-primary) 45%,var(--hx-border));background:var(--hx-elev);color:var(--hx-text-3);font-size:15px;font-family:inherit;cursor:pointer;box-shadow:0 0 0 1px var(--hx-primary-soft),0 10px 34px var(--hx-primary-soft);transition:border-color .15s,transform .18s var(--hx-ease)}
.hx-hero-search:hover{border-color:var(--hx-primary);transform:translateY(-1px)}
.hx-hero-search svg{width:18px;height:18px;flex:none}
.hx-hc-pill{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;border:1px solid var(--hx-border);background:color-mix(in srgb,var(--hx-elev) 72%,transparent);font-size:13px;font-weight:600;color:var(--hx-text-2);margin-bottom:18px}
.hx-hc-pill svg{width:14px;height:14px;color:var(--hx-primary-2)}
.hx-hc-hero--dusk .hx-hc-pill,.hx-hc-hero--brand .hx-hc-pill,.hx-hc-hero--image .hx-hc-pill{border-color:rgba(255,255,255,.24);background:rgba(255,255,255,.09);color:rgba(255,255,255,.88)}
.hx-hc-hero--dusk .hx-hc-pill svg,.hx-hc-hero--brand .hx-hc-pill svg,.hx-hc-hero--image .hx-hc-pill svg{color:#fff}

/* hero backgrounds: two soft theme-aware gradients, one moody, brand, image */
.hx-hc-hero--aurora{background:radial-gradient(620px 300px at 18% 0%,var(--hx-primary-soft),transparent 70%),radial-gradient(620px 300px at 82% 8%,color-mix(in srgb,var(--hx-primary-2) 10%,transparent),transparent 70%),var(--hx-bg-1)}
.hx-hc-hero--meadow{background:radial-gradient(620px 300px at 15% 0%,color-mix(in srgb,var(--hx-green) 12%,transparent),transparent 70%),radial-gradient(620px 300px at 85% 8%,color-mix(in srgb,var(--hx-blue) 9%,transparent),transparent 70%),var(--hx-bg-1)}
.hx-hc-hero--dusk{background:linear-gradient(135deg,#171a2e,#232048 55%,#3b2a5e);border-bottom-color:transparent}
.hx-hc-hero--brand{background:linear-gradient(135deg,var(--hx-primary),var(--hx-primary-2));border-bottom-color:transparent}
.hx-hc-hero--image{background-size:cover;background-position:center;position:relative;border-bottom-color:transparent}
.hx-hc-hero--image::before{content:"";position:absolute;inset:0;background:rgba(10,12,24,.55)}
.hx-hc-hero--image .hx-hc-hero-in{position:relative}
.hx-hc-hero--dusk .hx-hc-ttl,.hx-hc-hero--brand .hx-hc-ttl,.hx-hc-hero--image .hx-hc-ttl{color:#fff}
.hx-hc-hero--dusk .hx-hc-tag,.hx-hc-hero--brand .hx-hc-tag,.hx-hc-hero--image .hx-hc-tag{color:rgba(255,255,255,.78)}

/* category grid — prototype-style gradient banner cards */
.hx-hc-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:18px;max-width:1080px;margin:40px auto 0;padding:0 22px}
.hx-hc-card{display:flex;flex-direction:column;border-radius:16px;border:1px solid var(--hx-border);background:var(--hx-bg-1);overflow:hidden;transition:border-color .15s,transform .18s var(--hx-ease),box-shadow .18s}
.hx-hc-grid--elevated .hx-hc-card{background:var(--hx-elev);box-shadow:var(--hx-shadow)}
.hx-hc-card:hover{border-color:var(--hx-primary);transform:translateY(-2px)}
.hx-hc-card-art{display:flex;align-items:center;justify-content:center;height:150px;flex:none;background:linear-gradient(135deg,#8b7dff,#5b8cff)}
.hx-hc-card:nth-child(4n+2) .hx-hc-card-art{background:linear-gradient(135deg,#34d399,#38bdf8)}
.hx-hc-card:nth-child(4n+3) .hx-hc-card-art{background:linear-gradient(135deg,#fbbf24,#fb7185)}
.hx-hc-card:nth-child(4n) .hx-hc-card-art{background:linear-gradient(135deg,#4ade80,#2dd4bf)}
.hx-hc-card-tile{width:56px;height:56px;border-radius:15px;background:#fff;display:flex;align-items:center;justify-content:center;color:#1a1f36;box-shadow:0 6px 18px rgba(10,14,30,.28)}
.hx-hc-card-tile svg{width:26px;height:26px}
.hx-hc-card-body{display:flex;flex-direction:column;gap:7px;padding:18px 20px 20px;flex:1}
.hx-hc-card-ttl{font-size:17px;font-weight:700;letter-spacing:-.015em}
.hx-hc-card-desc{font-size:13.8px;line-height:1.55;color:var(--hx-text-2)}
.hx-hc-card-meta{font-size:12.5px;color:var(--hx-text-3)}
.hx-hc-card-view{display:flex;align-items:center;gap:6px;margin-top:auto;padding-top:8px;font-size:13.5px;font-weight:600;color:var(--hx-primary-2)}
.hx-hc-card-view svg{width:15px;height:15px;transition:transform .18s var(--hx-ease)}
.hx-hc-card:hover .hx-hc-card-view svg{transform:translateX(3px)}
.hx-hc-empty{text-align:center;color:var(--hx-text-3);margin:60px 22px}

/* articles: sidebar-less pages keep the ToC near the content, not the viewport edge;
   the optional group rail gets a back link above the article list */
.hx-body.hx-hc-single.hx-home .hx-shell{max-width:1180px}
.hx-hc-side-back{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--hx-text-2);padding:6px 10px 14px;margin-bottom:12px;border-bottom:1px solid var(--hx-border)}
.hx-hc-side-back svg{width:15px;height:15px;flex:none}
.hx-hc-side-back:hover{color:var(--hx-primary)}

/* collection pages: icon chip + byline header, groups as boxed sections */
.hx-hc-main{max-width:920px;margin:0 auto;padding:34px 22px 0}
.hx-hc-colhead{margin:24px 0 4px}
.hx-hc-colic{width:56px;height:56px;border-radius:15px;display:flex;align-items:center;justify-content:center;background:var(--hx-primary-soft);color:var(--hx-primary);margin-bottom:18px}
.hx-hc-colic svg{width:26px;height:26px}
.hx-hc-byline{display:flex;align-items:center;gap:10px;margin:16px 0 4px;font-size:14px;color:var(--hx-text-3)}
.hx-hc-avatars{display:flex;padding-right:8px}
.hx-hc-avatars img{width:26px;height:26px;border-radius:50%;border:2px solid var(--hx-bg);margin-right:-8px}
.hx-hc-sec{border:1px solid var(--hx-border);border-radius:16px;background:var(--hx-bg-1);padding:8px 24px 12px;margin:26px 0}
.hx-hc-sec-ttl{font-size:19px;font-weight:700;letter-spacing:-.02em;margin:0;padding:16px 2px 15px;border-bottom:1px solid var(--hx-border)}
.hx-hc-rows{display:flex;flex-direction:column;padding:8px 0 4px}
.hx-hc-row{display:flex;align-items:center;gap:12px;padding:13px 10px;padding-left:calc(10px + var(--hx-depth,0)*18px);border-radius:10px;margin:0 -10px;transition:background .15s}
.hx-hc-row:hover{background:var(--hx-bg-2)}
.hx-hc-row-ttl{flex:1;display:flex;align-items:center;gap:9px;font-size:15px;font-weight:550;letter-spacing:-.01em;min-width:0}
.hx-hc-row .hx-nav-ic{display:inline-flex;color:var(--hx-text-3);flex:none}
.hx-hc-row .hx-nav-ic svg{width:15px;height:15px}
.hx-hc-row-arrow{display:inline-flex;color:var(--hx-text-3);flex:none}
.hx-hc-row-arrow svg{width:16px;height:16px}
.hx-hc-row:hover .hx-hc-row-arrow{color:var(--hx-primary)}

@media (max-width:640px){
  .hx-hc-hero{padding:46px 16px 40px}
  .hx-hc-grid{margin-top:26px;padding:0 16px}
  .hx-hc-main{padding:24px 16px 0}
  .hx-hc-sec{padding:4px 16px 8px}
  .hx-main.hx-hc{padding-bottom:70px}
}
@media print{.hx-hero-search{display:none}}

/* ---- Ask AI (Pro): trigger row + answer view inside the search modal ---- */
.hx-ai-trigger{display:flex;align-items:center;gap:10px;width:100%;padding:11px 14px;margin:0 0 6px;border:1px dashed color-mix(in srgb,var(--hx-primary) 45%,var(--hx-border));border-radius:10px;background:var(--hx-primary-soft);color:var(--hx-primary);font-family:inherit;font-size:13.5px;font-weight:600;cursor:pointer;text-align:left}
.hx-ai-trigger:hover{border-style:solid}
.hx-ai-trigger svg{width:15px;height:15px;flex:none}
.hx-ai-trigger span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hx-ai{padding:6px 4px 10px;max-height:420px;overflow-y:auto}
.hx-ai-back{border:0;background:none;color:var(--hx-text-3);font-family:inherit;font-size:12.5px;cursor:pointer;padding:4px 2px;margin-bottom:2px}
.hx-ai-back:hover{color:var(--hx-primary)}
.hx-ai-q{font-weight:700;font-size:15px;letter-spacing:-.01em;padding:2px 2px 10px;border-bottom:1px solid var(--hx-border)}
.hx-ai-body{padding:10px 2px 0;font-size:14px;line-height:1.65;color:var(--hx-text-2)}
.hx-ai-body p{margin:0 0 10px}
.hx-ai-loading{color:var(--hx-text-3);animation:hxAiPulse 1.2s ease-in-out infinite}
@keyframes hxAiPulse{0%,100%{opacity:.55}50%{opacity:1}}
.hx-ai-error{color:var(--hx-text-2);background:var(--hx-bg-2);border-radius:8px;padding:10px 12px;font-size:13.5px}
.hx-ai-sources-ttl{font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--hx-text-3);margin:12px 0 6px}
.hx-ai-source{display:block;padding:6px 0;font-size:13.5px;color:var(--hx-primary-2);border-bottom:1px solid var(--hx-border)}
.hx-ai-source:last-of-type{border-bottom:0}
.hx-ai-source:hover{color:var(--hx-primary)}
.hx-ai-note{margin-top:12px;font-size:11.5px;color:var(--hx-text-3)}
@media (prefers-reduced-motion:reduce){.hx-ai-loading{animation:none}}
.hx-ai-inline{margin:0 0 8px;padding:12px 14px;border:1px solid color-mix(in srgb,var(--hx-primary) 30%,var(--hx-border));border-radius:12px;background:var(--hx-primary-soft)}
.hx-ai-inline-head{display:flex;align-items:center;gap:7px;font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--hx-primary);margin-bottom:6px}
.hx-ai-inline-head svg{width:13px;height:13px;flex:none}
.hx-ai-inline-body{font-size:13.5px;line-height:1.6;color:var(--hx-text-2)}
.hx-ai-inline-body p{margin:0 0 8px}
.hx-ai-inline-body p:last-child{margin-bottom:0}
.hx-ai-inline-src{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.hx-ai-inline-src a{font-size:12px;color:var(--hx-primary-2);background:var(--hx-bg-2);border:1px solid var(--hx-border);border-radius:999px;padding:3px 10px;text-decoration:none}
.hx-ai-inline-src a:hover{color:var(--hx-primary)}
.hx-ai-inline .hx-ai-note{margin-top:8px}
.hx-ai-vote{display:flex;align-items:center;gap:8px;margin-top:12px;font-size:12.5px;color:var(--hx-text-3)}
.hx-ai-vote-btn{border:1px solid var(--hx-border);background:var(--hx-bg-2);border-radius:8px;padding:3px 9px;font-size:13px;cursor:pointer;line-height:1.4}
.hx-ai-vote-btn:hover{border-color:var(--hx-primary);background:var(--hx-primary-soft)}
.hx-ai-follow{display:flex;gap:8px;margin-top:14px;padding-top:12px;border-top:1px solid var(--hx-border)}
.hx-ai-follow-input{flex:1;border:1px solid var(--hx-border);border-radius:9px;background:var(--hx-bg);color:var(--hx-text);font-family:inherit;font-size:13.5px;padding:8px 11px}
.hx-ai-follow-input:focus{outline:2px solid color-mix(in srgb,var(--hx-primary) 45%,transparent);outline-offset:0;border-color:var(--hx-primary)}
.hx-ai-follow-btn{border:0;border-radius:9px;background:var(--hx-primary);color:#fff;font-family:inherit;font-size:13px;font-weight:600;padding:8px 16px;cursor:pointer}
.hx-ai-follow-btn:hover{filter:brightness(1.08)}
.hx-ai-inline-follow{display:inline-block;border:0;background:none;color:var(--hx-primary);font-family:inherit;font-size:12.5px;font-weight:600;padding:0;margin-top:10px;cursor:pointer}
.hx-ai-inline-follow:hover{text-decoration:underline}
.hx-related{margin:28px 0 6px}
.hx-related-ttl{font-size:11px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--hx-text-3);margin-bottom:10px}
.hx-related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
@media (max-width:720px){.hx-related-grid{grid-template-columns:1fr}}
.hx-related-card{display:flex;flex-direction:column;gap:3px;padding:12px 14px;border:1px solid var(--hx-border);border-radius:11px;background:var(--hx-bg-2);text-decoration:none;transition:border-color .12s ease}
.hx-related-card:hover{border-color:var(--hx-primary)}
.hx-related-name{font-size:13.5px;font-weight:600;color:var(--hx-text)}
.hx-related-meta{font-size:11.5px;color:var(--hx-text-3)}
.hx-skip{position:absolute;left:-9999px;top:0;z-index:200;background:var(--hx-primary);color:#fff;font-weight:600;font-size:13.5px;padding:10px 16px;border-radius:0 0 10px 0;text-decoration:none}
.hx-skip:focus{left:0}
.hx-body a:focus-visible,.hx-body button:focus-visible,.hx-body summary:focus-visible,.hx-body [tabindex]:focus-visible{outline:2px solid var(--hx-primary);outline-offset:2px;border-radius:4px}

/* ---- FAQ layout (lemma_layout = faq): grouped accordion list ---- */
.hx-faq{margin-top:6px}
.hx-faq-sec{margin:28px 0 0}
.hx-faq-sec-ttl{font-size:13px;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--hx-text-3);margin:0 0 10px}
.hx-faq-item{border:1px solid var(--hx-border);border-radius:12px;background:var(--hx-bg-1);margin:0 0 10px;overflow:hidden}
.hx-faq-item summary{display:flex;align-items:center;gap:12px;padding:15px 18px;cursor:pointer;font-weight:600;font-size:15px;letter-spacing:-.01em;list-style:none}
.hx-faq-item summary::-webkit-details-marker{display:none}
.hx-faq-item summary:hover{color:var(--hx-primary)}
.hx-faq-item summary svg{width:16px;height:16px;color:var(--hx-text-3);margin-left:auto;flex:none;transition:transform .18s var(--hx-ease)}
.hx-faq-item[open] summary svg{transform:rotate(180deg)}
.hx-faq-item:target{border-color:var(--hx-primary)}
.hx-faq-body{padding:0 18px 8px;font-size:15px}
.hx-faq-body>:first-child{margin-top:0}
@media (prefers-reduced-motion:reduce){.hx-faq-item summary svg{transition:none}}
@media print{.hx-faq-item{break-inside:avoid}}

/* ---- Products (Pro): header switcher + hub landing ---- */
.hx-hub{width:100%;max-width:1060px;margin:0 auto;padding:56px 24px 80px}
.hx-hub-head h1{font-size:34px;letter-spacing:-.02em;margin:0 0 8px}
.hx-hub-lede{font-size:16.5px;color:var(--hx-text-2);margin:0}
.hx-hub-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(290px,1fr));gap:18px;margin-top:34px}
.hx-hub-card{position:relative;display:flex;flex-direction:column;gap:9px;padding:24px 22px 20px;border:1px solid var(--hx-border);border-radius:14px;background:var(--hx-bg-1);text-decoration:none;color:var(--hx-text);overflow:hidden;transition:border-color .15s ease,transform .15s ease}
.hx-hub-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--hub-accent,var(--hx-primary))}
.hx-hub-card:hover{border-color:var(--hub-accent,var(--hx-primary));transform:translateY(-2px)}
.hx-hub-logo{height:26px;width:auto;align-self:flex-start}
.hx-hub-name{font-size:17.5px;font-weight:700;letter-spacing:-.01em}
.hx-hub-desc{font-size:14px;line-height:1.6;color:var(--hx-text-2)}
.hx-hub-meta{margin-top:6px;display:flex;align-items:center;gap:7px;font-size:13px;color:var(--hx-text-3)}
.hx-hub-meta svg{width:14px;height:14px;transition:transform .15s ease}
.hx-hub-card:hover .hx-hub-meta svg{transform:translateX(3px)}
@media (prefers-reduced-motion:reduce){.hx-hub-card,.hx-hub-meta svg{transition:none}}