/* The landing's stylesheet, linked by every page (`render-landing-blog.ts` copies the link out of
   `index.html`). It is a file and not a <style> so the Content-Security-Policy in `_headers` can
   say style-src 'self'. The fonts are served from here for the same reason: they are the latin
   subsets Google Fonts served the landing, which no Subresource Integrity hash can pin. */
/* latin */
@font-face{font-family:'Geist';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/site/fonts/geist-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
/* latin */
@font-face{font-family:'Geist';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/site/fonts/geist-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
/* latin */
@font-face{font-family:'Geist';font-style:normal;font-weight:600;font-display:swap;src:url(/assets/site/fonts/geist-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
/* symbols2 */
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/site/fonts/geist-mono-symbols2.woff2) format('woff2');unicode-range:U+2000-2001, U+2004-2008, U+200A, U+23B8-23BD, U+2500-259F}
/* latin */
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/site/fonts/geist-mono-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
/* symbols2 */
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/site/fonts/geist-mono-symbols2.woff2) format('woff2');unicode-range:U+2000-2001, U+2004-2008, U+200A, U+23B8-23BD, U+2500-259F}
/* latin */
@font-face{font-family:'Geist Mono';font-style:normal;font-weight:500;font-display:swap;src:url(/assets/site/fonts/geist-mono-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
/* latin */
@font-face{font-family:'Instrument Serif';font-style:italic;font-weight:400;font-display:swap;src:url(/assets/site/fonts/instrument-serif-italic-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}
/* latin */
@font-face{font-family:'Instrument Serif';font-style:normal;font-weight:400;font-display:swap;src:url(/assets/site/fonts/instrument-serif-latin.woff2) format('woff2');unicode-range:U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD}

/* Tokens mirror @zarel-ai/design-system (globals.css + brand.ts): teal-tinted ink, slate neutrals,
   brand teal #00B6B6. */
:root{
  --bg:#0A1414; --card:#13262B; --muted:#13262B;
  --border:#13262B; --border-strong:#24414A;
  --fg:#ffffff; --fg-muted:#CBD5E1; --fg-dim:#8A9BA6;
  --teal:#00B6B6; --accent-fg:#00B6B6;
  --red:#F2555A; --green:#2BC55E;
  --maxw:1152px;
}
@media (prefers-color-scheme: light){
  :root:not([data-theme="dark"]){
    --bg:#ffffff; --card:#ffffff; --muted:#F1F5F9;
    --border:#E2E8F0; --border-strong:#CBD5E1;
    --fg:#0A1414; --fg-muted:#5A687C; --fg-dim:#64748B;
    --accent-fg:#0a6e6e;
    --red:#E5484D; --green:#15803d;
  }
}
:root[data-theme="light"]{
  --bg:#ffffff; --card:#ffffff; --muted:#F1F5F9;
  --border:#E2E8F0; --border-strong:#CBD5E1;
  --fg:#0A1414; --fg-muted:#5A687C; --fg-dim:#64748B;
  --accent-fg:#0a6e6e;
  --red:#E5484D; --green:#15803d;
}

*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  background:var(--bg); color:var(--fg);
  font-family:"Geist",ui-sans-serif,system-ui,sans-serif;
  font-size:16px; line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
.mono{font-family:"Geist Mono",ui-monospace,SFMono-Regular,monospace}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
@media(min-width:768px){.wrap{padding:0 32px}}
section{border-top:1px solid var(--border)}
.pad{padding:88px 0}
@media(min-width:768px){.pad{padding:120px 0}}

a{color:inherit}
/* One display headline per surface (Instrument Serif 400); every other heading is Geist 600. */
h1{font-family:"Instrument Serif",ui-serif,Georgia,serif;font-weight:400;letter-spacing:-0.01em;line-height:1.02;font-size:clamp(3rem,7vw,4.5rem)}
h2,h3{font-weight:600;letter-spacing:-0.022em;line-height:1.1}
h2{font-size:clamp(1.875rem,4vw,3rem)}
h3{font-size:1.1875rem;letter-spacing:-0.015em;line-height:1.3}
p{color:var(--fg-muted)}
strong{color:var(--fg);font-weight:600}

.eyebrow{
  font-size:.875rem;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--accent-fg);margin-bottom:16px;display:block;
}

/* ---------- nav ---------- */
header{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 80%,transparent);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid color-mix(in srgb,var(--border) 60%,transparent)}
nav{display:flex;align-items:center;justify-content:space-between;height:64px}
.brand{display:flex;align-items:center;color:var(--fg);text-decoration:none}
.brand svg{display:block}
.nav-right{display:flex;align-items:center;gap:12px}
.nav-link{font-size:.875rem;font-weight:500;color:var(--fg-muted);text-decoration:none}
.nav-link:hover{color:var(--fg)}
@media(max-width:560px){.nav-link{display:none}}
.tbtn{
  width:36px;height:36px;display:grid;place-items:center;cursor:pointer;
  background:none;border:1px solid var(--border);border-radius:6px;color:var(--fg-muted);
}
.tbtn:hover{color:var(--fg);border-color:var(--border-strong)}
.tbtn svg{width:16px;height:16px}
.talk{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;
  background:var(--fg);color:var(--bg);font-size:.875rem;font-weight:500;text-decoration:none;
}
.talk:hover{opacity:.9}
@media(max-width:400px){.talk{display:none}}
.lang{position:relative}
.lang-btn{
  height:36px;display:inline-flex;align-items:center;gap:6px;padding:0 8px;cursor:pointer;
  background:none;border:0;border-radius:6px;color:var(--fg-muted);
  font:inherit;font-size:.75rem;font-weight:500;text-transform:uppercase;
}
.lang-btn:hover,.lang-btn[aria-expanded="true"]{color:var(--fg);background:var(--muted)}
.lang-btn svg{width:16px;height:16px}
.lang-menu{
  position:absolute;right:0;top:calc(100% + 6px);min-width:150px;padding:4px;z-index:30;
  background:var(--card);border:1px solid var(--border);border-radius:8px;
  box-shadow:0 10px 30px -12px rgba(0,0,0,.35);
}
.lang-menu[hidden]{display:none}
.lang-menu a{display:flex;justify-content:space-between;align-items:center;padding:7px 10px;border-radius:5px;font-size:.875rem;color:var(--fg);text-decoration:none}
.lang-menu a:hover{background:var(--muted)}
.lang-menu a[aria-current="true"]::after{content:"✓";color:var(--accent-fg);font-size:.8rem}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:9px;font-size:15px;font-weight:500;
  text-decoration:none;border:1px solid transparent;transition:filter .1s,background-color .1s;
}
.btn:focus-visible,.talk:focus-visible,.tbtn:focus-visible,.lang-btn:focus-visible,.lang-menu a:focus-visible{outline:2px solid var(--teal);outline-offset:2px}
.btn-primary{background:var(--teal);color:#03201f;font-weight:600}
.btn-primary:hover{filter:brightness(1.1)}
.btn-outline{border-color:var(--border-strong);color:var(--fg)}
.btn-outline:hover{background:var(--muted)}

/* ---------- hero ---------- */
.hero{padding:88px 0 96px}
@media(min-width:768px){.hero{padding:120px 0}}
.hero .head{max-width:760px}
.hero .sub{margin-top:24px;max-width:620px;font-size:1.125rem;line-height:1.65}
@media(min-width:768px){.hero .sub{font-size:1.25rem}}
.hero .ctas{margin-top:40px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}

.demo{
  margin:56px auto 0;max-width:600px;border:1px solid var(--border);border-radius:14px;
  background:var(--card);overflow:hidden;box-shadow:0 24px 60px -30px rgba(0,40,40,.45);
}
.demo-bar{
  display:flex;align-items:center;gap:8px;padding:13px 18px;
  border-bottom:1px solid var(--border);font-size:13px;color:var(--fg-muted);
}
.live{position:relative;width:8px;height:8px;flex:none}
.live i{position:absolute;inset:0;border-radius:50%;background:var(--teal)}
.live i:first-child{opacity:.6;animation:ping 1.4s cubic-bezier(0,0,.2,1) infinite}
@keyframes ping{75%,100%{transform:scale(2);opacity:0}}
@media(prefers-reduced-motion:reduce){.live i:first-child{animation:none}}
.demo-body{padding:18px;font-size:14.5px;line-height:1.55}
.turn{display:flex;gap:11px}
.turn + .turn{margin-top:16px}
.turn svg{width:13px;height:13px;margin-top:4px;flex:none}
.turn.user{color:var(--fg-muted)}
.turn.user svg{color:var(--fg-muted)}
.turn.bot{color:var(--fg)}
.turn.bot svg{color:var(--accent-fg)}
.fields{margin-top:6px;font-size:12.5px;line-height:1.9;color:var(--fg-muted);overflow-x:auto}
.fields div{white-space:pre}
.fields .ok{color:var(--accent-fg)}
.fields .no{color:var(--red)}
.tag{display:block;margin-top:7px;font-size:11.5px;letter-spacing:.02em;color:var(--fg-muted)}
.demo-foot{border-top:1px solid var(--border);padding:13px 18px;font-size:12.5px;color:var(--fg-muted)}
.demo-foot .g{color:var(--green)}

.kicker{
  margin:40px auto 0;max-width:600px;text-align:center;font-size:1.0625rem;font-style:italic;color:var(--fg-muted);
}

/* ---------- cards ---------- */
.grid{display:grid;gap:20px;margin-top:48px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
@media(max-width:800px){.g3,.g2{grid-template-columns:1fr}}
.cell{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:30px;transition:border-color .15s}
.cell:hover{border-color:var(--border-strong)}
.cell .n{font-family:"Geist Mono",ui-monospace,monospace;font-size:.75rem;color:var(--accent-fg);letter-spacing:.1em;display:block;margin-bottom:14px}
.cell h3{margin-bottom:12px}
.cell p{font-size:15px;line-height:1.65}

.lead{max-width:62ch;margin-top:24px;font-size:1.0625rem;line-height:1.65}
.close{margin:60px auto 0;max-width:48rem;text-align:center;font-size:1.125rem;font-style:italic;color:var(--fg-muted)}

/* ---------- steps ---------- */
.steps{margin-top:48px;display:grid;border-left:1px solid var(--border)}
.step{padding:0 0 32px 28px;position:relative}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:-4.5px;top:8px;width:8px;height:8px;border-radius:50%;background:var(--teal)}
.step h3{margin-bottom:8px}
.step p{font-size:15px;max-width:64ch}

/* ---------- verify block ---------- */
.verify{margin-top:40px;border:1px solid var(--border);border-radius:10px;background:var(--muted);padding:18px 20px;font-size:13px;line-height:1.8;overflow-x:auto}
.verify div{white-space:pre}
.verify .cmd{color:var(--fg-muted)}
.verify .g{color:var(--green)}
.verify .r{color:var(--red)}
.verify .dimline{color:var(--fg-muted)}
.caption{margin-top:12px;font-size:.8125rem;color:var(--fg-dim)}

/* ---------- fits ---------- */
.fits{margin-top:48px;border:1px solid var(--border);border-radius:14px;overflow:hidden;background:var(--card)}
.fit{display:grid;grid-template-columns:minmax(200px,1fr) 2fr;gap:24px;padding:24px 28px;border-bottom:1px solid var(--border)}
.fit:last-child{border-bottom:none}
.fit .what{color:var(--fg);font-weight:600;font-size:15px}
.fit p{font-size:15px;margin:0}
@media(max-width:720px){.fit{grid-template-columns:1fr;gap:6px}}

/* ---------- status ---------- */
.limits{margin-top:40px;display:grid;gap:16px;max-width:76ch}
.limit{display:grid;grid-template-columns:20px 1fr;gap:14px;align-items:start}
.limit svg{width:16px;height:16px;margin-top:5px;color:var(--accent-fg);flex:none}
.limit p{font-size:15px}

/* ---------- final ---------- */
.final{padding:88px 0}
@media(min-width:768px){.final{padding:120px 0}}
.final h2{max-width:20ch}
.final .ctas{margin-top:32px;display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.final .mailnote{font-size:15px;color:var(--fg-muted);text-decoration:none}
.final .mailnote:hover{color:var(--fg);text-decoration:underline;text-underline-offset:4px}

footer{border-top:1px solid var(--border);background:color-mix(in srgb,var(--muted) 30%,var(--bg));padding:48px 0}
.foot{display:flex;justify-content:space-between;gap:24px;flex-wrap:wrap;align-items:flex-start}
.foot .tagline{margin-top:16px;font-size:.875rem;color:var(--fg-muted)}
.foot .contact{font-size:.875rem;text-align:right}
.foot .contact a{color:var(--fg-muted);text-decoration:none}
.foot .contact a:hover{color:var(--fg)}
.foot .contact p{margin-top:8px;font-size:.875rem}
@media(max-width:560px){.foot .contact{text-align:left}}
.copy{margin-top:40px;padding-top:32px;border-top:1px solid var(--border);text-align:center;font-size:.875rem;color:var(--fg-muted)}
.sprite{position:absolute}
.fields.flush{margin-top:0}