/* adsonai.co — "Familiar by Design" (CLAUDE.md §4.5)
   Restraint is the aesthetic: hairlines + whitespace, one accent, no gradients. */

@font-face{font-family:Inter;src:url(fonts/Inter-var.woff2) format('woff2');font-weight:100 900;font-style:normal;font-display:swap}
@font-face{font-family:'JetBrains Mono';src:url(fonts/JetBrainsMono-500.woff2) format('woff2');font-weight:500;font-style:normal;font-display:swap}

:root{
  --bg:#F7F7F8; --card:#FFFFFF;
  --ink:#202123; --muted:#6E6E80; --faint:#9B9BAA;
  --hair:#ECECF1; --edge:#D6D6E0;
  --accent:#10A37F; --accent-dark:#0C8064;
  --tint:#E9F6F1; --tint-soft:#F5FBF8; --tint-edge:#D5EDE4;
  --sans:Inter,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  --mono:'JetBrains Mono',ui-monospace,SFMono-Regular,Menlo,monospace;
  --wrap:1100px; --r:10px; --r-lg:14px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16px;line-height:1.6;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
h1,h2,h3{margin:0;font-weight:600;letter-spacing:-.02em;line-height:1.1}
p{margin:0}
a{color:var(--accent);text-decoration:none}
a:hover{color:var(--accent-dark);text-decoration:underline}
img{max-width:100%;display:block}
input,select,button,textarea{font-family:inherit}
input::placeholder{color:var(--faint)}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.wrap{max-width:var(--wrap);margin:0 auto;padding-inline:24px}
.mono{font-family:var(--mono)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip{position:absolute;left:-9999px;top:0;z-index:100;background:var(--card);padding:12px 18px;border:1px solid var(--edge);border-radius:var(--r)}
.skip:focus{left:12px;top:12px}

/* ---------- nav ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(247,247,248,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--hair)}
.nav-in{display:flex;align-items:center;justify-content:space-between;gap:24px;padding-block:14px}
.logo{font-weight:600;font-size:18px;letter-spacing:-.01em;color:var(--ink)}
.logo:hover{text-decoration:none;color:var(--ink)}
.logo em{font-style:normal;color:var(--accent)}
.logo span{color:var(--muted);font-weight:400}
.nav-links{display:flex;align-items:center;gap:22px;font-size:14px;font-weight:500}
.nav-links a{color:var(--muted)}
.btn-ghost{color:var(--ink);border:1px solid var(--edge);border-radius:8px;padding:8px 14px;transition:border-color 150ms}
.btn-ghost:hover{border-color:var(--accent);color:var(--ink);text-decoration:none}
@media(max-width:640px){.nav-links .hide-sm{display:none}}

/* ---------- buttons ---------- */
.btn{display:inline-block;border:none;border-radius:var(--r);padding:13px 22px;font-size:15px;font-weight:600;cursor:pointer;transition:background 150ms,border-color 150ms;text-align:center}
.btn-primary{background:var(--accent);color:#fff}
.btn-primary:hover{background:var(--accent-dark);color:#fff;text-decoration:none}
.btn-secondary{background:var(--card);color:var(--ink);border:1px solid var(--edge)}
.btn-secondary:hover{border-color:var(--accent);color:var(--ink);text-decoration:none}

/* ---------- hero ---------- */
.hero{display:grid;grid-template-columns:repeat(auto-fit,minmax(430px,1fr));gap:56px;align-items:center;padding-block:64px 68px}
.hero-copy{display:flex;flex-direction:column;gap:20px;min-width:0}
.eyebrow{align-self:start;font-family:var(--mono);font-size:12.5px;font-weight:500;color:var(--accent-dark);background:var(--tint);border:1px solid var(--tint-edge);border-radius:999px;padding:5px 12px}
h1{font-size:clamp(38px,4.5vw,58px);line-height:1.06;text-wrap:balance}
.lede{font-size:18px;color:var(--muted);max-width:52ch;text-wrap:pretty}
.lede b{color:var(--ink);font-weight:600}
.microcopy{font-size:13px;color:var(--muted)}
.proof-strip{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:4px}
.pill{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;font-weight:500;color:var(--ink);background:var(--card);border:1px solid var(--hair);border-radius:999px;padding:6px 12px}
.dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex-shrink:0}
.proof-note{font-size:12.5px;color:var(--muted)}

/* ---------- waitlist form ---------- */
.form-row{display:flex;gap:10px;max-width:480px}
.form-row input{flex:1;min-width:0;border:1px solid var(--edge);border-radius:var(--r);padding:13px 16px;font-size:15px;background:var(--card);color:var(--ink);outline:none;transition:border-color 150ms}
.form-row input:focus{border-color:var(--accent)}
.form-row .btn{white-space:nowrap}
.qualify{background:var(--card);border:1px solid var(--hair);border-radius:12px;padding:24px;display:flex;flex-direction:column;gap:16px;animation:fadeIn .4s ease}
.q-head{display:flex;flex-direction:column;gap:2px}
.q-title{font-weight:600;font-size:15px}
.q-sub{font-size:13.5px;color:var(--muted)}
.q-group{display:flex;flex-direction:column;gap:6px}
.q-label{font-size:12.5px;font-weight:500;color:var(--muted)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{border:1px solid var(--edge);background:var(--card);color:var(--ink);border-radius:999px;padding:7px 14px;font-size:13px;font-weight:500;cursor:pointer;transition:border-color 150ms,background 150ms,color 150ms}
.chip:hover{border-color:var(--accent)}
.chip[aria-pressed="true"]{background:var(--tint);border-color:var(--accent);color:var(--accent-dark)}
.chip.num{font-family:var(--mono)}
.q-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px}
@media(max-width:520px){.q-grid{grid-template-columns:1fr}}
.q-grid input,.qualify select{border:1px solid var(--edge);border-radius:8px;padding:10px 12px;font-size:14px;background:var(--card);color:var(--ink);outline:none;width:100%;transition:border-color 150ms}
.q-grid input:focus,.qualify select:focus{border-color:var(--accent)}
.thanks{background:var(--tint);border:1px solid var(--tint-edge);border-radius:12px;padding:18px 20px;font-size:14.5px;animation:fadeIn .4s ease}
.thanks b{color:var(--accent-dark)}
.form-error{font-size:13px;color:#B42318;min-height:0}
[hidden]{display:none !important}

/* ---------- chat demo ---------- */
.demo{display:flex;flex-direction:column;gap:14px;min-width:0}
.chat{background:var(--card);border:1px solid var(--hair);border-radius:var(--r-lg);box-shadow:0 1px 3px rgba(32,33,35,.04);overflow:hidden;min-height:470px;display:flex;flex-direction:column}
.chat-bar{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:12px 18px;border-bottom:1px solid var(--hair)}
.chat-who{display:flex;align-items:center;gap:8px}
.avatar{width:22px;height:22px;border-radius:50%;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:600}
.chat-who span{font-size:13px;font-weight:500;color:var(--muted)}
.chat-tag{font-family:var(--mono);font-size:10.5px;color:var(--faint)}
.chat-body{padding:20px 20px 18px;display:flex;flex-direction:column;gap:16px;flex:1}
.msg-user{display:flex;justify-content:flex-end}
.msg-user span{background:#F0F0F3;border-radius:16px;padding:10px 16px;font-size:14px;max-width:88%;min-height:20px;line-height:1.5}
.msg-ai{font-size:14px;line-height:1.6;color:var(--ink);min-height:92px}
.caret{display:inline-block;width:2px;height:14px;background:var(--ink);margin-left:2px;vertical-align:-2px;animation:blink 1s step-end infinite}
.caret-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--ink);margin-left:4px;animation:blink 1s step-end infinite}
.ad-slot{min-height:124px}

/* the sponsored card — OpenAI's understated tinted unit */
.ad{background:var(--tint-soft);border:1px solid var(--tint-edge);border-radius:12px;padding:14px 16px;animation:cardIn .45s ease}
.ad-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:10px;gap:8px}
.ad-brand{display:flex;align-items:center;gap:8px;min-width:0}
.ad-fav{width:20px;height:20px;border-radius:6px;color:#fff;display:flex;align-items:center;justify-content:center;font-size:10px;font-weight:600;flex-shrink:0;background:var(--ad-color,#7A5C43)}
.ad-name{font-size:12.5px;font-weight:500}
.ad-url{font-size:11.5px;color:var(--faint);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ad-label{font-size:11px;color:var(--faint);font-weight:500;flex-shrink:0}
.ad-main{display:flex;gap:14px;align-items:center}
.ad-text{flex:1;display:flex;flex-direction:column;gap:3px;min-width:0}
.ad-head{font-size:14.5px;font-weight:600;letter-spacing:-.01em}
.ad-desc{font-size:12.5px;color:var(--muted);line-height:1.5}
.ad-media{position:relative;width:64px;height:64px;border-radius:10px;overflow:hidden;flex-shrink:0;background:var(--hair)}
.ad-media img{width:100%;height:100%;object-fit:cover}
.ad-price{position:absolute;left:0;right:0;bottom:0;background:rgba(32,33,35,.72);color:#fff;font-family:var(--mono);font-size:10px;font-weight:500;text-align:center;padding:2px 0;backdrop-filter:blur(2px)}
.ad-callout{display:flex;align-items:center;gap:10px;margin-top:12px;animation:fadeIn .6s ease .3s both}
.ad-rule{width:26px;height:1px;background:var(--accent);flex-shrink:0}
.ad-callout span{font-size:12.5px;font-weight:500;color:var(--accent-dark)}
.dots{display:flex;justify-content:center;gap:8px}
.dots button{width:8px;height:8px;border-radius:50%;border:none;padding:0;cursor:pointer;background:var(--edge);transition:background 200ms}
.dots button[aria-selected="true"]{background:var(--accent)}

/* ---------- live band ---------- */
.band{border-top:1px solid var(--hair);background:var(--card)}
.band-in{padding-block:40px;display:flex;flex-direction:column;gap:28px}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:24px}
.stat{display:flex;flex-direction:column;gap:4px}
.stat b{font-family:var(--mono);font-size:28px;font-weight:600;letter-spacing:-.02em;font-variant-numeric:tabular-nums}
.stat.hi b{color:var(--accent)}
.stat span{font-size:13px;color:var(--muted);line-height:1.5}
.ticker{border-top:1px solid var(--hair);padding-top:20px;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.live{display:inline-flex;align-items:center;gap:7px;font-family:var(--mono);font-size:11px;font-weight:600;color:var(--accent-dark);flex-shrink:0}
.live .dot{animation:pulse 1.6s ease infinite}
.tick-text{font-family:var(--mono);font-size:13px;color:var(--ink);min-width:0}
.ticker-note{font-size:13px;color:var(--muted);margin-left:auto}
.ticker-note b{color:var(--ink);font-weight:600}

/* ---------- sections ---------- */
.section{border-top:1px solid var(--hair)}
.section.alt{background:var(--card)}
.section-in{padding-block:64px;display:flex;flex-direction:column;gap:28px}
.section-head{display:flex;flex-direction:column;gap:8px}
h2{font-size:clamp(26px,2.8vw,36px)}
.section-head p{font-size:15.5px;color:var(--muted);max-width:64ch}

/* solution cards */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(380px,1fr));gap:16px}
.card{border:1px solid var(--hair);border-radius:var(--r-lg);padding:26px;display:flex;flex-direction:column;gap:14px;background:var(--card)}
.card.accent{border-color:var(--tint-edge);background:var(--tint-soft)}
.card-top{display:flex;justify-content:space-between;align-items:center;gap:12px}
.kicker{font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}
.card.accent .kicker{color:var(--accent-dark)}
.badge{font-size:11.5px;font-weight:500;color:var(--muted);border:1px solid var(--edge);border-radius:999px;padding:4px 10px;white-space:nowrap}
.badge.live{display:inline-flex;align-items:center;gap:6px;color:var(--accent-dark);border-color:var(--tint-edge);background:var(--card)}
.badge.live .dot{width:6px;height:6px}
.card h3{font-size:20px;letter-spacing:-.01em}
.card ul{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:9px;font-size:14px;line-height:1.5}
.card li{display:flex;gap:10px}
.card li::before{content:"—";color:var(--accent);font-weight:600;flex-shrink:0}
.card li b{font-weight:600}
.card-cta{margin-top:auto;padding-top:4px}
.card-cta .btn{padding:10px 18px;font-size:14px}

/* proof bar */
.proof-bar{background:var(--card);border:1px solid var(--hair);border-radius:12px;padding:16px 22px;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.proof-bar>b{font-size:14px;flex-shrink:0}
.proof-bar q{font-size:13.5px;color:var(--muted);flex:1;min-width:260px;line-height:1.5;quotes:none}
.proof-bar .pill{background:var(--tint-soft);border-color:var(--tint-edge);color:var(--accent-dark);flex-shrink:0;font-size:12px}

/* how + who */
.split{display:grid;grid-template-columns:repeat(auto-fit,minmax(400px,1fr));gap:56px;padding-block:64px}
.col h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:14px}
.row{display:flex;gap:14px;padding-block:16px;border-top:1px solid var(--hair)}
.step-n{font-family:var(--mono);font-size:13px;font-weight:600;color:var(--accent);flex-shrink:0;padding-top:2px}
.row-body{flex:1;min-width:0}
.row-title{display:flex;justify-content:space-between;align-items:baseline;gap:12px}
.row h3{font-size:15.5px;letter-spacing:0}
.row p{font-size:13.5px;color:var(--muted);line-height:1.55}
.cpc{font-family:var(--mono);font-size:12px;color:var(--accent-dark);font-variant-numeric:tabular-nums;white-space:nowrap}

/* FAQ — native <details>, works with JS off */
.faq-wrap{max-width:820px;margin:0 auto;padding-block:64px}
.faq-wrap h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:24px}
details{border-bottom:1px solid var(--hair)}
summary{padding-block:15px;display:flex;justify-content:space-between;align-items:center;gap:16px;cursor:pointer;list-style:none;font-size:15.5px;font-weight:600;letter-spacing:-.01em}
summary::-webkit-details-marker{display:none}
summary::after{content:"+";font-family:var(--mono);font-size:17px;color:var(--accent);flex-shrink:0;line-height:1}
details[open] summary::after{content:"−"}
details p{padding:0 0 18px;font-size:14.5px;color:var(--muted);line-height:1.6;max-width:64ch}

/* final CTA */
.final{padding-block:72px;display:flex;flex-direction:column;align-items:center;gap:16px;text-align:center}
.final h2{font-size:clamp(32px,3.8vw,48px)}
.final p{font-size:16px;color:var(--muted);max-width:56ch;text-wrap:pretty}
.final-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:center;margin-top:6px}
.final .logo{font-size:16px}

/* footer */
footer{border-top:1px solid var(--hair)}
.foot-in{padding-block:28px;display:flex;flex-direction:column;gap:10px}
.foot-row{display:flex;flex-wrap:wrap;justify-content:space-between;gap:16px;font-size:13px;color:var(--muted)}
.foot-links{display:flex;flex-wrap:wrap;align-items:center;gap:16px}
.foot-links a{color:var(--muted)}
.foot-links b{color:var(--ink)}
.disclaimer{font-size:12px;color:var(--faint);line-height:1.6}

/* ---------- motion ---------- */
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}
@keyframes cardIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .caret,.caret-dot{display:none}
}
@media(max-width:900px){
  .hero{grid-template-columns:1fr;gap:40px;padding-block:44px 52px}
  .split{grid-template-columns:1fr;gap:36px}
  .cards{grid-template-columns:1fr}
  .ticker-note{margin-left:0;flex-basis:100%}
}

/* ---------- long-form article (privacy) ---------- */
article.faq-wrap h1{font-size:clamp(30px,3.4vw,40px);margin-bottom:10px}
article.faq-wrap .lede{font-size:15px;margin-bottom:30px}
article.faq-wrap h2{font-size:17px;margin:30px 0 8px}
article.faq-wrap p{font-size:15px;color:var(--muted);line-height:1.7;margin-bottom:12px}