/* ============================================================
   ClaudeArchitect — Blueprint brand system
   Shared shell styles for the docs/guides section.
   Class names match the existing article markup exactly, so the
   26 guides are re-skinned without touching their content or URLs.
   ============================================================ */
:root{
  --paper:#F7F9FB;--paper-2:#FFFFFF;
  --ink:#0F2745;--ink-soft:#33475F;--ink-mute:#5E7186;
  --accent:#235C9E;--accent-deep:#16406F;
  --line:#CDD8E3;--line-soft:#E3EAF1;--grid:#DBE4EC;
  --flag:#B0662A;--flag-bg:#FBF3EA;--ok:#2F6B57;--ok-bg:#EAF2EE;
  --serif:"Iowan Old Style","Palatino Linotype",Palatino,"Book Antiqua",Georgia,"Times New Roman",serif;
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono","SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
  --wrap:1140px;--radius:3px;
  --lift:0 1px 2px rgba(15,39,69,.04),0 8px 24px -12px rgba(15,39,69,.18);
  --lift-hi:0 1px 2px rgba(15,39,69,.05),0 18px 40px -16px rgba(15,39,69,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--sans);
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
a{color:var(--accent);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:2px}
img{max-width:100%;height:auto}

/* Kill the old dark decorative layers — Blueprint uses light paper + hairlines. */
.mesh-gradient{display:none !important}
.grid-overlay{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.55;
  background:linear-gradient(var(--grid) 1px,transparent 1px) 0 0/34px 34px,
             linear-gradient(90deg,var(--grid) 1px,transparent 1px) 0 0/34px 34px;
  -webkit-mask-image:linear-gradient(180deg,#000 0,transparent 420px);
          mask-image:linear-gradient(180deg,#000 0,transparent 420px)}

/* ---------- Header / nav ---------- */
header[role="banner"]{position:sticky;top:0;z-index:30;background:rgba(247,249,251,.88);
  backdrop-filter:saturate(1.4) blur(10px);border-bottom:1px solid var(--line)}
header[role="banner"] nav{max-width:var(--wrap);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;gap:20px}
.nav-brand{display:flex;align-items:center;gap:11px;min-width:0}
/* Wordmark + nested-diamond glyph — identical to the app nav. */
.logo{font-family:var(--serif);font-weight:600;font-size:19px;color:var(--ink);letter-spacing:-.01em;
  display:inline-flex;align-items:center;gap:11px;white-space:nowrap}
.logo:hover{text-decoration:none}
.logo .glyph{width:22px;height:22px;flex:0 0 22px;border:1.5px solid var(--accent);
  transform:rotate(45deg);border-radius:2px;position:relative;display:block}
.logo .glyph::after{content:"";position:absolute;inset:4px;border:1.5px solid var(--accent);border-radius:1px}
.nav-divider{color:var(--line);font-size:15px}
.nav-section-link,.nav-section{font-family:var(--mono);font-size:11.5px;letter-spacing:.1em;
  text-transform:uppercase;color:var(--ink-mute)}
.nav-section-link:hover{color:var(--accent);text-decoration:none}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:20px}
.nav-link{font-size:14.5px;color:var(--ink-soft)}
.nav-link:hover{color:var(--accent);text-decoration:none}
.nav-cta{font-family:var(--sans);font-weight:500;font-size:14.5px;
  background:var(--ink);color:#fff;padding:10px 18px;border-radius:var(--radius);
  border:1px solid var(--ink);transition:.15s;white-space:nowrap}
.nav-cta:hover{background:var(--accent-deep);border-color:var(--accent-deep);text-decoration:none}
@media(max-width:640px){.nav-link{display:none}}

/* ---------- Docs hub (index) ---------- */
.docs-hero{position:relative;border-bottom:1px solid var(--line);background:var(--paper-2);
  padding:64px 24px 46px;text-align:left}
.docs-hero--tight{padding:44px 24px 32px}
.docs-hero__content{max-width:var(--wrap);margin:0 auto}
.docs-hero h1{font-family:var(--serif);font-weight:600;letter-spacing:-.02em;line-height:1.08;
  font-size:clamp(32px,5vw,50px);margin:0 0 14px;color:var(--ink);max-width:20ch}
.docs-hero__subtitle{font-size:19px;color:var(--ink-soft);max-width:62ch;margin:0}
.docs-hero__stats{display:flex;gap:44px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line);flex-wrap:wrap}
.stat{display:flex;flex-direction:column;gap:4px}
.stat__number{font-family:var(--serif);font-weight:600;font-size:32px;color:var(--accent);line-height:1}
.stat__label{font-family:var(--mono);font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink-mute)}

.docs-section{max-width:var(--wrap);margin:0 auto;padding:44px 24px 8px}
.docs-section__header{margin:0 0 22px}
.docs-section__number{font-family:var(--mono);font-size:12px;letter-spacing:.14em;color:var(--accent);
  display:inline-block;margin:0 0 10px}
.docs-section h2{font-family:var(--serif);font-weight:600;font-size:clamp(24px,3.2vw,32px);
  letter-spacing:-.015em;margin:0 0 8px;color:var(--ink)}
.docs-section__description{font-size:16.5px;color:var(--ink-soft);margin:0;max-width:60ch}
.docs-section__new-badge{font-family:var(--mono);font-size:10.5px;letter-spacing:.06em;text-transform:uppercase;
  background:var(--ok-bg);color:var(--ok);padding:3px 8px;border-radius:2px;margin-left:10px;vertical-align:middle}

.docs-grid{max-width:var(--wrap);margin:0 auto;padding:0 24px 20px;
  display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:16px}
.docs-card{position:relative;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 26px;box-shadow:var(--lift);transition:.16s;display:block;color:inherit}
.docs-card:hover{box-shadow:var(--lift-hi);transform:translateY(-2px);border-color:#B7C6D6;text-decoration:none}
.docs-card--featured{border-color:var(--accent)}
.docs-card--featured::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent);
  border-radius:var(--radius) var(--radius) 0 0}
.docs-card__badge{position:absolute;top:22px;right:24px;font-family:var(--mono);font-size:12px;color:var(--ink-mute)}
.docs-card__title{font-family:var(--serif);font-weight:600;font-size:19px;line-height:1.25;
  margin:0 0 8px;color:var(--ink);padding-right:34px}
.docs-card__description{font-size:14.5px;color:var(--ink-soft);margin:0 0 16px}
.docs-card__status{font-family:var(--mono);font-size:11px;letter-spacing:.06em;text-transform:uppercase;
  color:var(--ink-mute);display:inline-flex;align-items:center;gap:7px}
.docs-card__status::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--line)}
.docs-card--published .docs-card__status{color:var(--ok)}
.docs-card--published .docs-card__status::before{background:var(--ok)}

/* ---------- Hub CTA ---------- */
.docs-cta{position:relative;max-width:var(--wrap);margin:44px auto 0;padding:0 24px 60px}
.docs-cta__glow{display:none !important}
.docs-cta__content{position:relative;border:1px solid var(--accent);background:var(--paper-2);
  border-radius:var(--radius);padding:34px 36px;box-shadow:var(--lift);overflow:hidden}
.docs-cta__content::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--accent)}
.docs-cta h2{font-family:var(--serif);font-weight:600;font-size:26px;margin:0 0 10px;color:var(--ink)}
.docs-cta p{color:var(--ink-soft);margin:0 0 20px;max-width:60ch}
.docs-cta__button{display:inline-block;font-family:var(--sans);font-weight:500;font-size:15px;
  background:var(--ink);color:#fff;padding:13px 22px;border-radius:var(--radius);border:1px solid var(--ink);transition:.15s}
.docs-cta__button:hover{background:var(--accent-deep);border-color:var(--accent-deep);text-decoration:none}

/* ---------- Filters (hub) ---------- */
.filter-panel{max-width:var(--wrap);margin:0 auto;padding:0 24px 22px;display:flex;gap:10px;flex-wrap:wrap}
.filter-search,.filter-select{font:inherit;font-size:14.5px;color:var(--ink);background:var(--paper-2);
  border:1px solid var(--line);border-radius:var(--radius);padding:11px 14px;outline:none;transition:.14s}
.filter-search{flex:1;min-width:220px}
.filter-search:focus,.filter-select:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(35,92,158,.12)}

/* ---------- Footer ---------- */
footer[role="contentinfo"],.footer{border-top:1px solid var(--line);background:var(--ink);color:#9EB0C2;margin-top:70px}
.footer__content{max-width:var(--wrap);margin:0 auto;padding:46px 24px 26px;
  display:grid;grid-template-columns:1.3fr 2fr;gap:40px}
@media(max-width:760px){.footer__content{grid-template-columns:1fr;gap:28px}}
.footer__logo{font-family:var(--serif);font-weight:600;font-size:19px;color:#fff;letter-spacing:-.01em}
.footer__tagline{font-size:14px;color:#8298AD;margin:10px 0 0;max-width:38ch;line-height:1.7}
.footer__nav{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:28px}
.footer__nav-group{display:flex;flex-direction:column;gap:9px}
.footer__nav-group h3,.footer__nav-group h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;
  text-transform:uppercase;color:#7E93A8;margin:0 0 4px;font-weight:500}
.footer__nav-group a{color:#9EC2E8;font-size:14px}
.footer__bottom{max-width:var(--wrap);margin:0 auto;padding:20px 24px 40px;border-top:1px solid #24384E;
  font-family:var(--mono);font-size:12px;color:#8298AD;line-height:1.7}
.footer__bottom a{color:#9EC2E8}

@media(max-width:640px){
  header[role="banner"] nav{padding:13px 18px;gap:12px}
  .nav-divider,.nav-section-link{display:none}
  .docs-hero{padding:44px 18px 34px}
  .docs-grid,.docs-section,.docs-cta{padding-left:18px;padding-right:18px}
}

/* ============================================================
   CANONICAL SITE CHROME — header + footer.
   Identical on app pages and docs pages. Do not fork.
   ============================================================ */

/* ---- Header: independence bar at top, nav sticky beneath ---- */
.indbar{background:var(--ink);color:#C9D7E6;font-family:var(--mono);font-size:11.5px;
  letter-spacing:.02em;padding:8px 20px;text-align:center;line-height:1.5}
.indbar strong{color:#fff}
nav.top,header[role="banner"]{position:sticky;top:0;z-index:30;
  background:rgba(247,249,251,.88);backdrop-filter:saturate(1.4) blur(10px);
  border-bottom:1px solid var(--line)}
.nav-in,header[role="banner"] nav{max-width:var(--wrap);margin:0 auto;padding:14px 24px;
  display:flex;align-items:center;gap:26px}
.brand,.logo{display:inline-flex;align-items:center;gap:11px;font-family:var(--serif);
  font-weight:600;font-size:19px;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;text-decoration:none}
.brand:hover,.logo:hover{text-decoration:none}
.glyph{width:22px;height:22px;flex:0 0 22px;border:1.5px solid var(--accent);
  transform:rotate(45deg);border-radius:2px;position:relative;display:block}
.glyph::after{content:"";position:absolute;inset:4px;border:1.5px solid var(--accent);border-radius:1px}

/* ---- Footer ---- */
.site-foot{background:var(--ink);color:#9EB0C2;margin-top:80px}
.foot-wrap{max-width:var(--wrap);margin:0 auto;padding:52px 24px 44px}
.foot-rule{height:1px;background:#24384E;margin:36px 0}
.foot-eyebrow{font-family:var(--mono);font-size:10.5px;letter-spacing:.16em;text-transform:uppercase;
  color:#7FA8D6;margin:0 0 12px}
.foot-capture{display:grid;grid-template-columns:1.15fr 1fr;gap:44px;align-items:start}
@media(max-width:820px){.foot-capture{grid-template-columns:1fr;gap:26px}}
.foot-capture h3{font-family:var(--serif);font-weight:600;font-size:23px;line-height:1.3;
  color:#fff;margin:0 0 10px;letter-spacing:-.01em}
.foot-sub{font-size:14.5px;line-height:1.7;color:#9EB0C2;margin:0;max-width:46ch}
.foot-field{display:flex;gap:9px}
@media(max-width:420px){.foot-field{flex-direction:column}}
.foot-field input{flex:1;min-width:0;font:inherit;font-size:15px;color:#fff;background:#16293F;
  border:1px solid #2C4363;border-radius:var(--radius);padding:12px 14px;outline:none;transition:.14s}
.foot-field input::placeholder{color:#6E86A0}
.foot-field input:focus{border-color:#4A7FBF;box-shadow:0 0 0 3px rgba(74,127,191,.18)}
.foot-field .btn{background:#fff;color:var(--ink);border-color:#fff;flex:0 0 auto;font-weight:500}
.foot-field .btn:hover{background:#DCE6F1;border-color:#DCE6F1;color:var(--ink)}
.foot-msg{font-family:var(--mono);font-size:12px;margin:10px 0 0}
.foot-msg.is-ok{color:#7FD6AE}
.foot-msg.is-err{color:#E79A9A}
.foot-fine{font-family:var(--mono);font-size:11px;color:#6E86A0;margin:10px 0 0}
.foot-cols{display:grid;grid-template-columns:1.15fr 1fr;gap:44px}
@media(max-width:820px){.foot-cols{grid-template-columns:1fr;gap:30px}}
.foot-brand{font-size:19px;color:#fff}
.foot-brand .glyph{border-color:#7FA8D6}
.foot-brand .glyph::after{border-color:#7FA8D6}
.foot-tagline{font-size:14px;line-height:1.75;color:#8298AD;margin:14px 0 0;max-width:40ch}
.foot-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
@media(max-width:560px){.foot-nav{grid-template-columns:1fr 1fr}}
.foot-nav h4{font-family:var(--mono);font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:#7E93A8;margin:0 0 14px;font-weight:500}
.foot-nav a{display:block;color:#9EC2E8;font-size:14px;margin:0 0 10px;text-decoration:none}
.foot-nav a:hover{color:#fff}
.foot-legal{font-family:var(--mono);font-size:11.5px;line-height:1.8;color:#7E93A8;margin:0 0 12px}
.foot-copy{font-family:var(--mono);font-size:11.5px;color:#7E93A8;margin:0}

.foot-social{display:flex;gap:10px;margin-top:14px}
.soc{display:grid;place-items:center;width:36px;height:36px;border:1px solid #2C4363;border-radius:var(--radius);
  background:#16293F;transition:.15s;margin:0}
.soc svg{width:16px;height:16px;fill:#9EC2E8;transition:.15s;display:block}
.soc:hover{border-color:#4A7FBF;background:#1B3450}
.soc:hover svg{fill:#fff}