:root{
  --bg:#FAFAF8; --surface:#FFFFFF; --ink:#0B0B0C; --ink-soft:#55565A;
  --line:#E4E3DE; --accent:#C6FF3D; --accent-ink:#3E5E00;
  box-sizing:border-box;
  padding-top:env(safe-area-inset-top,0px); padding-bottom:env(safe-area-inset-bottom,0px);
}
*{box-sizing:border-box;}
html{scroll-padding-top:env(safe-area-inset-top,0px);}
html,body{height:100%;}
body{margin:0;background:var(--bg);color:var(--ink);font-family:'IBM Plex Sans',system-ui,sans-serif;line-height:1.55;-webkit-font-smoothing:antialiased;}
h1,h2,h3,.wordmark{font-family:'Space Grotesk',system-ui,sans-serif;letter-spacing:-0.01em;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;}
.wrap{max-width:1120px;margin:0 auto;padding:0 24px;}

header{position:sticky;top:0;top:env(safe-area-inset-top,0px);background:rgba(250,250,248,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);z-index:20;}
.nav{display:flex;align-items:center;justify-content:space-between;padding:18px 24px;max-width:1120px;margin:0 auto;}
.wordmark{font-size:20px;font-weight:700;display:flex;align-items:center;gap:8px;}
.wordmark .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);display:inline-block;}
.navlinks{display:flex;gap:28px;align-items:center;}
.navlinks a{font-size:15px;color:var(--ink-soft);padding:6px 0;}
.navlinks a.active{color:var(--ink);font-weight:600;}
.navlinks a:hover{color:var(--ink);}
.btn{display:inline-flex;align-items:center;gap:8px;background:var(--ink);color:var(--bg);border:none;padding:12px 20px;border-radius:3px;font-size:15px;font-weight:600;font-family:inherit;cursor:pointer;}
.btn:hover{background:#000;}
.btn-accent{background:var(--accent);color:var(--ink);}
.btn-accent:hover{background:#b8f524;}
.btn-ghost{background:none;border:1px solid var(--line);color:var(--ink);}

section{padding:88px 0;}

/* hero */
.hero{padding:64px 0 80px;}
.hero-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:56px;align-items:center;}
.eyebrow{color:var(--accent-ink);font-size:14px;font-weight:600;margin:0 0 14px;}
.hero h1{font-size:52px;line-height:1.06;margin:0 0 20px;font-weight:600;}
.hero p.lead{font-size:18px;color:var(--ink-soft);max-width:46ch;margin:0 0 30px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* chat mockup */
.chatcard{background:var(--surface);border:1px solid var(--line);border-radius:14px;overflow:hidden;box-shadow:0 24px 48px -24px rgba(0,0,0,.18);}
.chatcard .bar{display:flex;align-items:center;gap:8px;padding:14px 16px;border-bottom:1px solid var(--line);}
.chatcard .bar span{width:9px;height:9px;border-radius:50%;background:var(--line);}
.chatcard .barlabel{margin-left:8px;font-size:13px;color:var(--ink-soft);}
.chatcard .body{padding:20px;display:flex;flex-direction:column;gap:12px;min-height:280px;}
.bubble{max-width:82%;padding:11px 14px;border-radius:12px;font-size:14.5px;}
.bubble.user{align-self:flex-end;background:var(--ink);color:var(--bg);border-bottom-right-radius:3px;}
.bubble.bot{align-self:flex-start;background:#F1F1EC;border-bottom-left-radius:3px;}
.bubble.bot b{color:var(--accent-ink);}
.typing{align-self:flex-start;display:flex;gap:4px;padding:11px 14px;}
.typing span{width:6px;height:6px;border-radius:50%;background:var(--ink-soft);opacity:.5;animation:blink 1.2s infinite;}
.typing span:nth-child(2){animation-delay:.2s;}
.typing span:nth-child(3){animation-delay:.4s;}
@keyframes blink{0%,80%,100%{opacity:.3}40%{opacity:.9}}

/* trust bar */
.trust{padding:36px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-inner{display:flex;align-items:center;gap:36px;flex-wrap:wrap;justify-content:space-between;}
.trust-label{font-size:14px;color:var(--ink-soft);white-space:nowrap;}
.trust-brands{display:flex;gap:32px;flex-wrap:wrap;font-family:'Space Grotesk';font-weight:600;font-size:18px;color:var(--ink-soft);}

/* features */
.feature-row{display:grid;grid-template-columns:220px 1fr;gap:32px;padding:34px 0;border-top:1px solid var(--line);}
.feature-row:last-child{border-bottom:1px solid var(--line);}
.feature-row h3{margin:0;font-size:22px;}
.feature-row p{margin:0;color:var(--ink-soft);max-width:56ch;}

.section-head{max-width:60ch;margin-bottom:8px;}
.section-head h2{font-size:32px;margin:0 0 12px;}
.section-head p{color:var(--ink-soft);font-size:16px;margin:0;}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:44px;}
.step{position:relative;padding-top:20px;}
.step .num{font-family:'Space Grotesk';font-size:14px;color:var(--accent-ink);font-weight:600;}
.step h3{font-size:19px;margin:10px 0 8px;}
.step p{color:var(--ink-soft);margin:0;font-size:15px;}

/* dark cta */
.cta-dark{background:var(--ink);color:var(--bg);border-radius:16px;padding:56px 44px;text-align:center;}
.cta-dark h2{font-size:30px;margin:0 0 14px;color:#fff;}
.cta-dark p{color:#B8B9B4;margin:0 0 26px;}

footer{border-top:1px solid var(--line);padding:44px 0 60px;}
.foot-grid{display:flex;justify-content:space-between;flex-wrap:wrap;gap:24px;align-items:flex-start;}
.foot-col p, .foot-col a{display:block;color:var(--ink-soft);font-size:14px;margin:6px 0;}
.foot-col a:hover{color:var(--ink);}

/* about */
.about-hero h1{font-size:44px;margin:0 0 18px;}
.about-hero p{font-size:18px;color:var(--ink-soft);max-width:56ch;}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:20px;}
.values .v h3{font-size:18px;margin:0 0 8px;}
.values .v p{color:var(--ink-soft);margin:0;font-size:15px;}
.founder{display:grid;grid-template-columns:180px 1fr;gap:32px;align-items:start;margin-top:60px;padding-top:48px;border-top:1px solid var(--line);}
.avatar{width:140px;height:140px;border-radius:50%;background:linear-gradient(160deg,var(--accent),#7fbf00);display:flex;align-items:center;justify-content:center;font-family:'Space Grotesk';font-weight:700;font-size:44px;color:var(--ink);}
.founder h3{margin:0 0 4px;font-size:20px;}
.founder .role{color:var(--accent-ink);font-size:14px;font-weight:600;margin-bottom:12px;}
.founder p{color:var(--ink-soft);max-width:60ch;margin:0;}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:13px;font-weight:600;margin-bottom:6px;}
.field input,.field textarea{width:100%;border:1px solid var(--line);background:var(--surface);border-radius:6px;padding:12px 14px;font:inherit;font-size:15px;color:var(--ink);}
.field textarea{min-height:120px;resize:vertical;}
.field input:focus,.field textarea:focus{outline:2px solid var(--accent);outline-offset:1px;}
.contact-info h3{font-size:15px;color:var(--ink-soft);font-weight:600;margin:0 0 6px;}
.contact-info .val{font-size:18px;margin:0 0 26px;}
.formnote{font-size:13px;margin-top:10px;}
.formnote.ok{color:var(--accent-ink);}
.formnote.err{color:#B3261E;}

@media (max-width:820px){
  .hero-grid,.contact-grid,.founder{grid-template-columns:1fr;}
  .steps,.values{grid-template-columns:1fr;}
  .feature-row{grid-template-columns:1fr;}
  .hero h1{font-size:38px;}
  .navlinks{display:none;}
  section{padding:56px 0;}
}
@media (prefers-reduced-motion:reduce){.typing span{animation:none;}}