/* Ctxlayer marketing site. Tokens lifted from the app's dark theme (ctxlayer-app/docs/design/final-chat.html). */
:root{
  color-scheme:dark;
  --bg:#131719;
  --sidebar:#181d20;
  --panel:#1e2529;
  --hover:#242d31;
  --text:#eef1ef;
  --muted:#a7b3b5;
  --line:#303a3f;
  --accent:#b9dbcb;
  --accent-text:#14261e;
  --focus:#b9dbcb;
  --bubble:#293630;
  --shadow:0 24px 90px #0005;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:14px;
  --r-xl:22px;
  --font:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --wrap:1120px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font);font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--accent);text-underline-offset:3px}
a:focus-visible,summary:focus-visible{outline:2px solid var(--focus);outline-offset:3px;border-radius:6px}
p{margin:0 0 16px}
h1,h2,h3{color:var(--text);margin:0}
h1{font-size:clamp(2.4rem,6.2vw,4.4rem);line-height:1.05;letter-spacing:-.035em;font-weight:750}
h2{font-size:clamp(1.75rem,3.8vw,2.6rem);line-height:1.15;letter-spacing:-.025em;font-weight:700;margin-bottom:18px}
h3{font-size:1.14rem;line-height:1.35;letter-spacing:-.01em;font-weight:650;margin-bottom:10px}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 28px}
.narrow{max-width:760px}
.lead{font-size:clamp(1.08rem,1.6vw,1.25rem);color:var(--muted);max-width:720px;line-height:1.6}
.eyebrow{display:inline-block;font-size:.78rem;font-weight:700;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}

/* Header */
header.top{position:sticky;top:0;z-index:20;background:color-mix(in srgb,var(--bg) 86%,transparent);backdrop-filter:saturate(1.2) blur(12px);-webkit-backdrop-filter:saturate(1.2) blur(12px);border-bottom:1px solid var(--line)}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
.brand{font-weight:800;font-size:1.2rem;color:var(--text);text-decoration:none;letter-spacing:-.02em}
.brand span{color:var(--accent)}
.nav{display:flex;align-items:center;gap:26px}
.nav a{color:var(--muted);text-decoration:none;font-size:.95rem;font-weight:500}
.nav a:hover{color:var(--text)}
.nav .btn{padding:8px 16px;font-size:.9rem}
.nav .btn.primary{color:var(--accent-text)}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 26px;border-radius:var(--r-md);font-weight:650;font-size:1rem;text-decoration:none;border:1px solid var(--accent);transition:filter .15s,background .15s,transform .15s;line-height:1.2}
.btn.primary{background:var(--accent);color:var(--accent-text)}
.btn.secondary{color:var(--text);background:transparent;border-color:var(--line)}
.btn.secondary:hover{background:var(--hover)}
.btn.primary:hover{filter:brightness(1.07)}
.btn:active{transform:translateY(1px)}
.ctas{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}

/* Sections */
section{padding:112px 0;border-top:1px solid var(--line)}
section.alt{background:var(--sidebar)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head .lead{margin:0}

/* Hero */
.hero{border-top:0;padding:120px 0 64px;text-align:center;background:radial-gradient(900px 420px at 50% -10%,color-mix(in srgb,var(--accent) 14%,transparent),transparent 70%)}
.hero h1{max-width:900px;margin:0 auto 28px}
.hero .lead{margin:0 auto}
.hero .ctas{justify-content:center}

/* Showcase band */
.showcase{border-top:0;padding:24px 0 112px}
.stage{position:relative;max-width:1000px;margin:0 auto;padding-right:120px}
.frame{background:var(--sidebar);border:1px solid var(--line);box-shadow:var(--shadow);overflow:hidden}
.frame-desktop{border-radius:var(--r-lg)}
.frame-desktop .bar{display:flex;gap:7px;align-items:center;height:34px;padding:0 14px;border-bottom:1px solid var(--line);background:var(--panel)}
.frame-desktop .bar i{width:11px;height:11px;border-radius:50%;background:var(--line);display:block}
.frame-desktop img{width:100%;height:auto;aspect-ratio:1280/800}
.frame-phone{position:absolute;right:0;bottom:-48px;width:236px;border-radius:34px;padding:9px;background:#0c0f10;border:1px solid var(--line)}
.frame-phone img{width:100%;height:auto;aspect-ratio:400/860;border-radius:26px}

/* Problem */
.problem p.body{font-size:clamp(1.1rem,1.7vw,1.3rem);line-height:1.7;color:var(--muted);max-width:800px;margin:0}

/* Cards */
.grid{display:grid;gap:20px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-xl);padding:30px 28px;display:flex;flex-direction:column}
.card p{margin:0;color:var(--muted);font-size:.98rem}
.step .num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:50%;background:var(--bubble);color:var(--accent);font-weight:750;font-size:.95rem;margin-bottom:22px;border:1px solid color-mix(in srgb,var(--accent) 30%,transparent)}
.conn .tag{align-self:flex-start;font-size:.75rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase;color:var(--accent-text);background:var(--accent);border-radius:999px;padding:4px 12px;margin-bottom:20px}
.conn h3{font-size:1.3rem}

/* Apps */
.apps .shared{color:var(--muted);font-size:1.12rem;margin:0}
.app-card{align-items:flex-start;gap:22px;justify-content:space-between;min-height:190px}
.app-card h3{font-size:1.3rem;margin:0}
.app-card-coming{background:transparent;border-style:dashed;min-height:140px}
.app-card-coming h3{color:var(--muted);font-weight:600}
.coming-label{display:inline-block;font-size:.78rem;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:4px 12px}
.store-badge{display:inline-flex;align-items:center;gap:12px;min-width:188px;padding:9px 18px 9px 14px;background:#000;color:#fff;border:1px solid #5f6a6e;border-radius:var(--r-md);text-decoration:none;line-height:1.1;transition:border-color .15s,background .15s}
.store-badge:hover{border-color:var(--accent);background:#0a0c0d}
.store-badge svg{width:26px;height:26px;flex:none}
.store-badge .txt{display:flex;flex-direction:column}
.store-badge small{font-size:.68rem;letter-spacing:.02em;font-weight:500;opacity:.9}
.store-badge strong{font-size:1.28rem;font-weight:600;letter-spacing:-.01em}

/* Who */
.who p.body{font-size:clamp(1.1rem,1.7vw,1.3rem);line-height:1.7;color:var(--muted);max-width:800px;margin:0}

/* FAQ */
.faq-list{max-width:860px}
.faq details{border-bottom:1px solid var(--line)}
.faq details:first-child{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:20px;padding:24px 4px;font-weight:650;font-size:1.1rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:none;width:30px;height:30px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--accent);font-weight:500;font-size:1.2rem;transition:transform .2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq summary:hover{color:var(--accent)}
.faq details p{margin:0;padding:0 48px 26px 4px;color:var(--muted)}

/* Closing */
.closing{text-align:center}
.closing-box{background:radial-gradient(700px 300px at 50% 0%,color-mix(in srgb,var(--accent) 16%,transparent),transparent 70%),var(--panel);border:1px solid var(--line);border-radius:28px;padding:88px 32px}
.closing h2{font-size:clamp(2.2rem,5vw,3.4rem)}
.closing .lead{margin:0 auto}
.closing .ctas{justify-content:center}

/* Footer */
footer{border-top:1px solid var(--line);background:var(--sidebar);padding:56px 0 64px;color:var(--muted);font-size:.95rem}
footer .wrap{display:grid;grid-template-columns:1fr auto;gap:12px 32px;align-items:start}
footer .tagline{color:var(--text);font-weight:600;margin:0}
footer nav{display:flex;flex-wrap:wrap;gap:24px;grid-row:span 2}
footer nav a{color:var(--muted);text-decoration:none}
footer nav a:hover{color:var(--text)}
footer .company{margin:0}

/* Privacy doc */
.doc{padding:80px 0 112px}
.doc .wrap{max-width:820px}
.doc h1{font-size:clamp(2rem,4.5vw,2.9rem);margin:0 0 20px}
.doc h2{font-size:1.45rem;margin:48px 0 14px;padding-top:28px;border-top:1px solid var(--line)}
.doc p,.doc li{color:var(--muted)}
.doc strong{color:var(--text)}
.doc ol,.doc ul{padding-left:22px;margin:0 0 16px}
.doc li{margin-bottom:12px}
.doc .intro{background:var(--panel);border:1px solid var(--line);border-left:3px solid var(--accent);border-radius:var(--r-lg);padding:28px 30px;margin-bottom:56px}
.doc .intro p{margin:0;color:var(--text);font-size:1.08rem}

/* 404 */
.notfound{min-height:calc(100vh - 64px - 200px);display:flex;align-items:center;padding:120px 0;text-align:center;background:radial-gradient(800px 360px at 50% 0%,color-mix(in srgb,var(--accent) 12%,transparent),transparent 70%)}
.notfound h1{font-size:clamp(2rem,5vw,3.4rem);max-width:820px;margin:0 auto 24px}
.notfound .lead{margin:0 auto}
.notfound .ctas{justify-content:center}

/* Responsive */
@media (max-width:1000px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .stage{padding-right:90px}
  .frame-phone{width:190px;border-radius:28px;padding:7px}
  .frame-phone img{border-radius:22px}
}
@media (max-width:820px){
  .grid-3{grid-template-columns:1fr}
  .nav a:not(.btn){display:none}
  section{padding:84px 0}
}
@media (max-width:600px){
  body{font-size:16px}
  .wrap{padding:0 20px}
  section{padding:68px 0}
  .hero{padding:72px 0 40px}
  .showcase{padding:16px 0 72px}
  .grid-4{grid-template-columns:1fr}
  .stage{padding-right:0}
  .frame-desktop .bar{height:24px;padding:0 10px}
  .frame-desktop .bar i{width:8px;height:8px}
  .frame-phone{position:relative;right:auto;bottom:auto;width:62%;max-width:240px;margin:-28px auto 0}
  .ctas .btn{flex:1 1 100%}
  .card{padding:26px 22px}
  .closing-box{padding:60px 22px;border-radius:22px}
  .faq details p{padding-right:4px}
  footer .wrap{grid-template-columns:1fr}
  footer nav{grid-row:auto}
}