/* Lightweight public surface, using Circuitera's existing neutral/glass palette.
   Kept separate so landing pages never import editor or workspace styles/scripts. */
:root{color-scheme:light;--font-ui:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;--page:#f8f9fb;--surface:rgba(255,255,255,.86);--ink:#202020;--muted:#626262;--line:#dedfe3;--accent:#202020;--on-accent:#fff;--focus:#2563eb;--radius:18px}
:root[data-theme=dark]{color-scheme:dark;--page:#151515;--surface:rgba(34,34,35,.92);--ink:#ebebed;--muted:#acacb2;--line:#3d3d42;--accent:#e5e5e9;--on-accent:#202020;--focus:#94b5ff}
*{box-sizing:border-box}html,body{margin:0;overscroll-behavior:none}html{scroll-padding-top:90px}body{font-family:var(--font-ui);background:var(--page);color:var(--ink);line-height:1.65;font-size:15px}a{color:inherit;text-underline-offset:4px}a:hover{text-decoration-thickness:2px}a:focus-visible,summary:focus-visible{outline:2px solid var(--focus);outline-offset:5px}h1,h2,h3{line-height:1.16;letter-spacing:-.035em;font-weight:600;text-wrap:balance}h1{font-size:clamp(32px,4vw,48px);max-width:780px;margin:12px 0 20px}h2{font-size:25px;margin:0 0 14px}h3{font-size:18px;margin:0 0 8px}p{color:var(--muted);margin:0 0 18px}img{display:block}header{position:sticky;top:0;z-index:10;border-bottom:1px solid var(--line);background:var(--surface);backdrop-filter:blur(14px)}.nav{max-width:1160px;margin:auto;padding:12px 28px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:9px;font-size:21px;font-weight:700;letter-spacing:-.7px;text-decoration:none}.logo-dark{display:none}[data-theme=dark] .logo-light{display:none}[data-theme=dark] .logo-dark{display:block}nav{display:flex;align-items:center;gap:20px;font-size:13px;flex-wrap:wrap}nav a{text-decoration:none}nav a:hover{text-decoration:underline}.button{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:9px 16px;border:1px solid transparent;border-radius:12px;background:var(--accent);color:var(--on-accent);font-size:14px;font-weight:600;text-decoration:none;transition:opacity 180ms ease}.button:hover{opacity:.88;text-decoration:none}.skip{position:fixed;top:-80px;left:16px;z-index:20;padding:12px;background:var(--surface)}.skip:focus{top:12px}main,footer{max-width:1160px;margin:auto;padding:0 28px}.hero{padding:52px 0 38px}.eyebrow{font-size:11px;letter-spacing:.13em;font-weight:600;text-transform:uppercase;margin-bottom:14px}.intro{font-size:18px;line-height:1.7;max-width:760px}.actions{display:flex;gap:24px;align-items:center;flex-wrap:wrap;margin-top:26px}.actions>a:not(.button){font-size:14px}.content{display:grid;grid-template-columns:1fr 1fr;gap:32px 48px;padding:34px 0;border-top:1px solid var(--line)}.content p{margin-bottom:0;max-width:64ch}.related{padding:32px 0;border-top:1px solid var(--line)}.links{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin:20px 0}.feature{padding:20px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line);text-decoration:none}.feature:hover{background:var(--page)}.feature p{font-size:13px;margin:0}.feature span{display:block;font-weight:600;margin-bottom:8px}pre{overflow:auto;overscroll-behavior:none;border:1px solid var(--line);background:var(--surface);border-radius:var(--radius);padding:24px;line-height:1.6;font-size:13px}footer{border-top:1px solid var(--line);padding-top:28px;padding-bottom:28px;font-size:12px}footer nav{margin-bottom:16px}footer p{max-width:800px}.note{font-size:12px;margin-top:16px}.back{font-size:13px;margin-bottom:26px;display:inline-block}@media(max-width:760px){.nav{align-items:flex-start;gap:12px;padding:12px 20px}.nav nav{gap:12px;justify-content:flex-end;font-size:12px}.nav .button{font-size:12px;padding:8px 12px;min-height:36px}main,footer{padding-left:20px;padding-right:20px}.hero{padding:32px 0}.content{grid-template-columns:1fr;gap:28px}.links{grid-template-columns:repeat(2,minmax(0,1fr))}.intro{font-size:16px}h2{font-size:23px}}@media(max-width:440px){.nav{flex-wrap:wrap}.nav nav{justify-content:flex-start}.links{grid-template-columns:1fr}}@media(prefers-reduced-motion:reduce){*{transition:none!important}}

/* Guide additions reuse the existing public palette and geometry. */
.workflow,.guide-faq{padding:28px 0;border-top:1px solid var(--line)}.workflow ol{padding-left:22px;color:var(--muted)}.workflow li+li{margin-top:8px}.guide-faq details{padding:14px 0;border-bottom:1px solid var(--line)}.guide-faq summary{cursor:pointer;font-weight:600}.guide-faq p{margin:12px 0 0;max-width:80ch}.back{display:block}.back a{font-weight:500}