/* Nova Agentic AI — dark, clean, Apple-inspired. Doom, 2026-09-23 v2 */

:root{
  --bg:#000;
  --surface:#0a0a0c;
  --surface-2:#0f0f12;
  --line:#1d1d1f;
  --line-soft:#161618;
  --text:#f5f5f7;
  --muted:#a1a1a6;
  --muted-2:#6e6e73;
  --accent:#0a84ff;
  --accent-2:#bf5af2;
  --ok:#30d158;
  --radius:22px;
  --max:1120px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","SF Pro Display","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:17px;line-height:1.55;-webkit-font-smoothing:antialiased;letter-spacing:-.01em;
  overflow-x:hidden;
}
.wrap{max-width:var(--max);margin:0 auto;padding:0 24px}
.narrow-center{max-width:760px;margin:0 auto}
a{color:inherit;text-decoration:none}
em{font-style:normal;color:var(--text)}

/* nav */
.nav{position:sticky;top:0;z-index:60;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);background:rgba(0,0,0,.72);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:58px}
.brand{font-weight:600;font-size:17px;letter-spacing:-.02em;display:flex;align-items:center;gap:8px}
.brand .mark{background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;font-size:18px}
.brand .thin{color:var(--muted);font-weight:400}
.links{display:flex;align-items:center;gap:26px;font-size:14px;color:var(--muted)}
.links a{transition:color .18s ease}
.links a:hover{color:var(--text)}

/* buttons */
.btn{display:inline-block;background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;font-weight:600;font-size:15px;padding:12px 24px;border-radius:999px;transition:transform .18s ease,opacity .18s ease,box-shadow .25s ease}
.btn:hover{transform:translateY(-1px);opacity:.94;box-shadow:0 8px 30px rgba(10,132,255,.28)}
.btn.small{padding:8px 16px;font-size:13px}
.btn.ghost{background:transparent;border:1px solid var(--line);color:var(--text)}
.btn.ghost:hover{border-color:#3a3a3c;box-shadow:none}

/* hero */
.hero{position:relative;padding:88px 0 64px;overflow:hidden}
.glow{position:absolute;left:50%;top:-38%;width:900px;height:900px;transform:translateX(-50%);background:radial-gradient(circle at center,rgba(10,132,255,.20),rgba(191,90,242,.12) 42%,transparent 68%);filter:blur(24px);pointer-events:none;z-index:-1}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(38px,4.6vw,62px);line-height:1.04;font-weight:700;letter-spacing:-.035em;margin:16px 0 20px}
.eyebrow{color:var(--muted);font-size:12.5px;text-transform:uppercase;letter-spacing:.16em}
.lede{color:var(--muted);font-size:clamp(16px,1.6vw,19px);max-width:620px;margin-bottom:30px}
.cta{display:flex;gap:14px;flex-wrap:wrap}
.cta.center{justify-content:center;margin-top:26px}
.slogan{margin-top:30px;font-size:13.5px;color:var(--muted-2);letter-spacing:.02em}

/* chat card */
.chat-card{background:linear-gradient(180deg,rgba(255,255,255,.045),rgba(255,255,255,.02));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.55);backdrop-filter:blur(12px)}
.chat-head{display:flex;align-items:center;gap:12px;padding:15px 18px;border-bottom:1px solid var(--line-soft)}
.dot{width:9px;height:9px;border-radius:50%;background:var(--ok);box-shadow:0 0 12px rgba(48,209,88,.8);flex:0 0 auto}
.chat-id{display:flex;flex-direction:column;line-height:1.25}
.chat-id strong{font-size:15px;font-weight:600}
.chat-id span{font-size:12px;color:var(--muted-2)}
.chat-body{height:330px;overflow-y:auto;padding:18px;display:flex;flex-direction:column;gap:12px;scrollbar-width:thin}
.msg{max-width:88%;padding:12px 15px;border-radius:16px;font-size:15px;line-height:1.5;white-space:pre-wrap;word-wrap:break-word}
.msg.nova{background:var(--surface-2);border:1px solid var(--line-soft);border-bottom-left-radius:6px;align-self:flex-start}
.msg.me{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border-bottom-right-radius:6px;align-self:flex-end}
.msg.thinking{color:var(--muted);font-style:italic}
.typing{display:inline-flex;gap:4px;align-items:center}
.typing i{width:6px;height:6px;border-radius:50%;background:var(--muted);display:inline-block;animation:blink 1.2s infinite}
.typing i:nth-child(2){animation-delay:.2s}
.typing i:nth-child(3){animation-delay:.4s}
@keyframes blink{0%,80%,100%{opacity:.25}40%{opacity:1}}
.chat-form{display:flex;gap:10px;padding:14px 16px;border-top:1px solid var(--line-soft)}
.chat-form input{flex:1;background:var(--surface-2);border:1px solid var(--line);border-radius:12px;color:var(--text);padding:12px 14px;font-size:15px;font-family:inherit;outline:none;transition:border-color .18s ease}
.chat-form input:focus{border-color:#3a3a3c}
.chat-form button{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;border:0;border-radius:12px;padding:0 20px;font-weight:600;font-size:15px;cursor:pointer;font-family:inherit;transition:opacity .18s ease}
.chat-form button:disabled{opacity:.5;cursor:default}
.chat-note{padding:0 18px 16px;font-size:11.5px;color:var(--muted-2)}

/* strip */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface)}
.strip-inner{display:flex;gap:38px;justify-content:space-between;flex-wrap:wrap;padding:20px 24px;font-size:13.5px;color:var(--muted)}

/* sections */
.section{padding:100px 0}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{font-size:clamp(26px,3.2vw,40px);font-weight:650;letter-spacing:-.025em;text-align:center}
.sub{color:var(--muted);text-align:center;margin:14px auto 56px;max-width:660px}

.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:20px}
.card{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);padding:32px 28px;transition:transform .25s ease,border-color .25s ease}
.card:hover{transform:translateY(-3px);border-color:#2a2a2d}
.card .icon{font-size:22px;margin-bottom:18px;background:linear-gradient(135deg,var(--accent),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent}
.card h3{font-size:20px;font-weight:600;margin-bottom:12px}
.card p{color:var(--muted);font-size:15.5px}
.ticks{list-style:none;margin-top:18px;display:flex;flex-direction:column;gap:8px}
.ticks li{position:relative;padding-left:22px;color:var(--muted-2);font-size:14px}
.ticks li:before{content:"✓";position:absolute;left:0;color:var(--accent);font-weight:700}

.proof{display:grid;grid-template-columns:repeat(auto-fit,minmax(270px,1fr));gap:36px}
.proof-item h3{font-size:18px;font-weight:600;margin-bottom:10px}
.proof-item p{color:var(--muted);font-size:15.5px}

.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:26px}
.step span{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;border:1px solid var(--line);color:var(--muted);font-size:14px;margin-bottom:16px}
.step h3{font-size:17.5px;font-weight:600;margin-bottom:8px}
.step p{color:var(--muted);font-size:15px}

.statement{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--radius);padding:32px 30px}
.statement p{color:var(--muted);font-size:16px}
.statement .emph{margin-top:18px;color:var(--text);font-weight:500}

/* faq */
.faq{display:flex;flex-direction:column;gap:10px}
.faq details{background:var(--surface-2);border:1px solid var(--line);border-radius:14px;padding:18px 20px}
.faq summary{cursor:pointer;font-weight:550;font-size:16px;list-style:none;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--muted-2);font-weight:400}
.faq details[open] summary:after{content:"–"}
.faq p{color:var(--muted);font-size:15px;margin-top:12px}

.fine{margin-top:26px;text-align:center;color:var(--muted-2);font-size:13px}

/* footer */
.footer{border-top:1px solid var(--line);padding:30px 0;font-size:13px;color:var(--muted)}
.foot{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}
.dim{color:var(--muted-2)}

/* reveal */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width:900px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .chat-body{height:280px}
}
@media (max-width:640px){
  .links a:not(.btn){display:none}
  .hero{padding:64px 0 48px}
  .section{padding:72px 0}
  .strip-inner{gap:16px;font-size:12.5px}
}