/* Learn hub, guide articles, About, 404 and the design-system page (group C). */
.lh-main{max-width:1280px;margin:0 auto;padding:32px 20px 80px;display:grid;gap:40px}
.lh-h1{margin:0;font-family:Sora,sans-serif;font-weight:600;font-size:clamp(28px,4vw,40px);letter-spacing:-.02em}
.lh-h2{margin:0;font-family:Sora,sans-serif;font-weight:600;font-size:22px;letter-spacing:-.02em}
.lh-card{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:18px;border-radius:12px;background:var(--sf);border:1px solid var(--ln);color:var(--tx);align-items:start}
.lh-card:hover{border-color:var(--ac);color:var(--tx)}
.lh-term{display:grid;gap:6px;padding:14px 16px;border-radius:10px;background:var(--sf);border:1px solid var(--ln)}
#glossary{scroll-margin-top:80px}

/* article */
.ar-main{max-width:720px;margin:0 auto;padding:36px 20px 80px;display:grid;gap:28px;min-width:0}
.ar-crumb{font-size:13px;color:var(--tx3);display:flex;gap:8px}
.ar-crumb a{color:var(--tx3)}
.ar-crumb a:hover{color:var(--tx)}
.ar-h1{margin:0;font-family:Sora,sans-serif;font-weight:600;font-size:clamp(30px,4.5vw,44px);letter-spacing:-.025em;line-height:1.1;text-wrap:pretty}
.ar-lede{margin:0;font-size:19px;line-height:1.5;color:var(--tx2);text-wrap:pretty}
.ar-by{display:flex;gap:14px;align-items:center;flex-wrap:wrap;font-size:13px;color:var(--tx3);padding-top:12px;border-top:1px solid var(--ln)}
.ar-by img{width:28px;height:28px;border-radius:50%;border:1px solid var(--ln2);object-fit:cover}
.ar-by a{color:var(--tx2)}
.ar-by a:hover{color:var(--tx)}
.ar-body{display:grid;gap:18px;font-size:17px;line-height:1.65;color:var(--tx);min-width:0}
.ar-body p{margin:0}
.ar-body h2{margin:12px 0 0;font-family:Sora,sans-serif;font-weight:600;font-size:24px;letter-spacing:-.02em;line-height:1.25}
.ar-body ul,.ar-body ol{margin:0;padding-left:22px;display:grid;gap:8px}
.ar-h3{margin:0;font-family:Sora,sans-serif;font-weight:600;font-size:20px;letter-spacing:-.01em}
.ar-formula{padding:18px 20px;border-radius:12px;background:var(--sf);border:1px solid var(--ln);font-family:'IBM Plex Mono',monospace;font-size:15px;line-height:1.8;color:var(--tx2);overflow-wrap:anywhere}
.ar-formula .on{color:var(--tx)}
.ar-formula b{color:var(--ac)}
.ar-calc{display:grid;gap:16px;padding:22px;border-radius:14px;background:var(--sf);border:1px solid var(--ac);margin:8px 0;min-width:0}
.ar-box{display:grid;gap:10px;padding:18px 20px;border-radius:12px;background:var(--sf);border:1px solid var(--ln);min-width:0}
.ar-field{display:grid;gap:6px;font-size:14px}
.ar-field>span:first-child{display:flex;justify-content:space-between;gap:12px;color:var(--tx2)}
.ar-field>span:first-child b{color:var(--tx);font-family:'IBM Plex Mono',monospace;font-weight:600}
.ar-field input[type=range]{width:100%;height:28px;margin:0}
.ar-ends{display:flex;justify-content:space-between;gap:12px;font-size:12px;color:var(--tx3)}
.ar-sel{height:48px;padding:0 12px;border-radius:10px;border:1px solid var(--ln2);background:var(--sf2);color:var(--tx);font-size:15px;width:100%;min-width:0}
.ar-row{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,240px),1fr));gap:12px}
.ar-chips{display:flex;gap:8px;flex-wrap:wrap;font-size:13px}
.ar-chip{height:34px;padding:0 12px;border-radius:999px;border:1px solid var(--ln2);background:transparent;color:var(--tx2);cursor:pointer;font-size:13px}
.ar-chip:hover{border-color:var(--tx3);color:var(--tx)}
.ar-tog{height:40px;padding:0 14px;border-radius:999px;cursor:pointer;font-size:14px;font-weight:500;display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid var(--ln2);color:var(--tx2)}
.ar-tog:hover{border-color:var(--tx3);color:var(--tx)}
.ar-tog[aria-pressed="true"]{background:var(--ac2);border-color:var(--ac);color:var(--tx)}
.ar-tog small{font-family:'IBM Plex Mono',monospace;font-size:12px;color:var(--tx3)}
.ar-count{width:48px;height:48px;border-radius:10px;border:1px solid var(--ln2);background:var(--sf2);color:var(--tx);font-family:Sora,sans-serif;font-weight:600;font-size:17px;cursor:pointer}
.ar-count[aria-pressed="true"]{background:var(--ac2);border-color:var(--ac)}
.ar-result{display:grid;grid-template-columns:auto 1fr;gap:18px;align-items:center;padding-top:6px;border-top:1px solid var(--ln)}
.ar-out{display:grid;gap:14px;padding-top:14px;border-top:1px solid var(--ln);min-width:0}
.ar-tiles{display:grid;grid-template-columns:repeat(auto-fit,minmax(min(100%,200px),1fr));gap:10px}
.ar-tiles3{grid-template-columns:repeat(3,minmax(0,1fr))}
.ar-tile{display:grid;gap:4px;align-content:start;padding:12px 14px;border-radius:8px;background:var(--bg2);min-width:0}
.ar-big{font-family:Sora,sans-serif;font-weight:600;font-size:30px;letter-spacing:-.02em;line-height:1.1}
.ar-mid{font-family:Sora,sans-serif;font-weight:600;font-size:19px;letter-spacing:-.01em;line-height:1.2}
.ar-sub{font-size:13px;color:var(--tx2);line-height:1.45}
.ar-note{margin:0;font-size:13px;color:var(--tx2);line-height:1.5}
.ar-verdict{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.ar-msgs{margin:0;padding-left:20px;display:grid;gap:6px;font-size:14px;line-height:1.5;color:var(--tx2)}
.ar-svg{width:100%;height:auto;display:block;overflow:visible}
.ar-svg text{font-family:'IBM Plex Mono',monospace}
.ar-ax{font-size:10px;fill:var(--tx3)}
.ar-pt{font-size:10.5px;fill:var(--tx2)}
.ar-pm{font-size:13px;font-weight:600;fill:var(--tx)}
.ar-legend{display:flex;gap:16px;flex-wrap:wrap;font-size:12px;color:var(--tx3)}
.ar-legend i{display:inline-block;width:16px;height:3px;border-radius:2px;vertical-align:middle;margin-right:6px}
.ar-legend i.dash{background:repeating-linear-gradient(90deg,var(--tx3) 0 4px,transparent 4px 8px)}
.ar-chart{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:10px;height:170px;padding:22px 0 0;align-items:end;border-bottom:1px solid var(--ln2);margin-bottom:22px}
.ar-col{position:relative;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;height:100%;gap:4px}
.ar-bar{width:100%;max-width:56px;border-radius:4px 4px 0 0}
.ar-val{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--tx2)}
.ar-t{position:absolute;bottom:-20px;font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--tx3)}
.ar-lim{position:absolute;left:0;right:0;border-top:2px dashed var(--tx);z-index:1;pointer-events:none;opacity:.7}
.ar-col .ar-val{position:relative;z-index:2;background:var(--sf);padding:0 3px;border-radius:3px}
.ar-fbars{display:flex;align-items:end;gap:3px;height:90px}
.ar-fbars div{flex:1;border-radius:2px 2px 0 0}
.ar-next{display:grid;gap:12px;padding:20px;border-radius:14px;background:var(--sf);border:1px solid var(--ln)}
.ar-next a{display:flex;justify-content:space-between;gap:12px;color:var(--tx);font-size:15px;font-weight:500;min-height:44px;align-items:center;border-top:1px solid var(--ln);padding-top:8px}
.ar-next a:hover{color:var(--ac)}
.ar-next a span:last-child{font-family:'IBM Plex Mono',monospace;font-size:11px;color:var(--tx3);white-space:nowrap}

/* glossary diagram */
.gl-flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px}
.gl-stage{position:relative;display:grid;gap:8px;align-content:start;padding:14px;border-radius:12px;background:var(--bg2);border:1px solid var(--ln);font-size:14px;line-height:1.45}
.gl-stage+.gl-stage::before{content:"";position:absolute;left:-18px;top:28px;width:14px;height:2px;background:var(--ac)}
.gl-stage+.gl-stage::after{content:"";position:absolute;left:-8px;top:24px;border:5px solid transparent;border-left:6px solid var(--ac)}
.gl-stage h3{margin:0;font-family:Sora,sans-serif;font-weight:600;font-size:16px}
.gl-stage p{margin:0;font-size:13px;color:var(--tx2)}
.gl-terms{display:flex;flex-direction:column;gap:6px;align-items:flex-start;font-family:'IBM Plex Mono',monospace;font-size:13px}
.gl-terms .rw-tip{font-family:'IBM Plex Sans',sans-serif}
@media (max-width:700px){
  .gl-flow{grid-template-columns:1fr;gap:20px}
  .gl-stage+.gl-stage::before{left:28px;top:-16px;width:2px;height:12px}
  .gl-stage+.gl-stage::after{left:24px;top:-6px;border:5px solid transparent;border-top:6px solid var(--ac)}
  .ar-tiles3:not(.keep){grid-template-columns:1fr}
  .ar-tiles3.keep .ar-tile{padding:10px}
}
.gl-list{margin:0;display:grid;gap:0;border-top:1px solid var(--ln)}
.gl-list div{display:grid;grid-template-columns:minmax(110px,160px) 1fr;gap:6px 16px;padding:12px 0;border-bottom:1px solid var(--ln)}
.gl-list dt{font-family:'IBM Plex Mono',monospace;font-size:14px;color:var(--ac)}
.gl-list dd{margin:0;font-size:16px;line-height:1.55;color:var(--tx2)}
@media (max-width:480px){.gl-list div{grid-template-columns:1fr}}

/* about */
.ab-main{max-width:760px;margin:0 auto;padding:36px 20px 80px;display:grid;gap:44px}
.ab-photo{width:96px;height:96px;border-radius:50%;border:1px solid var(--ln2);object-fit:cover}
.ab-src{display:grid;grid-template-columns:auto 1fr;gap:16px;padding:18px;border-radius:12px;background:var(--sf);border:1px solid var(--ln);align-items:start}
@media (max-width:560px){.ab-src{grid-template-columns:1fr;gap:10px}.ab-src .rw-badge{justify-self:start}.ab-who{grid-template-columns:1fr!important}}
#verify,#disclosure{scroll-margin-top:80px}

/* design system */
.ds-sec{display:grid;gap:18px}
.ds-h2{margin:0;font-family:Sora,sans-serif;font-weight:600;font-size:24px;letter-spacing:-.02em}
.ds-link{height:36px;padding:0 12px;border-radius:8px;border:1px solid var(--ln2);display:inline-flex;align-items:center;color:var(--tx)}
.ds-link:hover{border-color:var(--tx3);color:var(--tx)}
.ds-spec{display:grid;grid-template-columns:minmax(120px,1fr) minmax(0,1.4fr);gap:8px 16px;padding:14px 16px;align-items:start}
.ds-spec .rw-termbtn{font-weight:600;font-size:15px;text-underline-offset:4px;text-align:left}

.ar-table{width:100%;border-collapse:collapse;font-size:15px;margin:8px 0 4px}
.ar-table th,.ar-table td{text-align:left;padding:9px 8px;border-bottom:1px solid var(--ln);vertical-align:top}
.ar-table th{font-family:'IBM Plex Mono',monospace;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--tx3);font-weight:500}