/* SellBot landing — Trust Blue, parallax + motion (self-contained) */
*{margin:0;padding:0;box-sizing:border-box}
:root{
  --blue-900:#172554;--blue-800:#1e40af;--blue-700:#1d4ed8;--blue-600:#2563eb;--blue-500:#3b82f6;--sky:#38bdf8;
  --ink:#0b1220;--tx:#0f172a;--mut:#5a6b85;--bd:#e6ebf3;--bg:#ffffff;--bg2:#f5f8fd;
  --grad:linear-gradient(135deg,#1e40af 0%,#2563eb 52%,#38bdf8 100%);
  --r:16px;--r-lg:24px;--ease:cubic-bezier(.22,.61,.36,1);
  --sh:0 10px 30px rgba(15,23,42,.10);--sh-lg:0 30px 70px rgba(23,37,84,.22);
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Inter,Roboto,sans-serif;
}
html{scroll-behavior:smooth}
body{font-family:var(--font);color:var(--tx);background:var(--bg);-webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.5}
a{color:inherit;text-decoration:none}
.wrap{max-width:1160px;margin:0 auto;padding:0 22px}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ---------- Keyframes ---------- */
@keyframes lFadeUp{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
@keyframes lFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-16px)}}
@keyframes lGrad{0%{background-position:0% 50%}100%{background-position:100% 50%}}
@keyframes lPulse{0%,100%{opacity:.6}50%{opacity:1}}
@keyframes lSpin{to{transform:rotate(360deg)}}
@keyframes lType{0%,20%{opacity:.3}50%{opacity:1}}

/* ---------- Nav ---------- */
.nav{position:fixed;top:0;left:0;right:0;z-index:50;transition:background .3s var(--ease),box-shadow .3s var(--ease),backdrop-filter .3s}
.nav.scrolled{background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(14px);box-shadow:0 1px 0 rgba(15,23,42,.06)}
.nav .wrap{display:flex;align-items:center;gap:24px;height:70px}
.brand{font-weight:800;font-size:20px;letter-spacing:-.02em;display:flex;align-items:center;gap:8px}
.brand .dot{width:26px;height:26px;border-radius:8px;background:var(--grad);box-shadow:0 4px 12px rgba(37,99,235,.4)}
.nav-links{display:flex;gap:26px;margin-left:12px}
.nav-links a{color:var(--mut);font-size:14px;font-weight:550;transition:color .2s}
.nav-links a:hover{color:var(--tx)}
.nav-cta{margin-left:auto;display:flex;gap:12px;align-items:center}
.btn{display:inline-flex;align-items:center;gap:8px;border-radius:12px;font-weight:650;font-size:14px;padding:11px 20px;cursor:pointer;border:none;transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-position .5s}
.btn-primary{background:var(--grad);background-size:180% auto;color:#fff;box-shadow:0 8px 22px rgba(37,99,235,.32)}
.btn-primary:hover{transform:translateY(-2px);background-position:right center;box-shadow:0 14px 30px rgba(37,99,235,.42)}
.btn-ghost{color:var(--tx);background:transparent}
.btn-ghost:hover{color:var(--blue-600)}
.btn-lg{padding:15px 28px;font-size:16px;border-radius:14px}
.nav-toggle{display:none;margin-left:auto;font-size:22px;background:none;border:none;cursor:pointer}

/* ---------- Hero ---------- */
.hero{position:relative;padding:150px 0 100px;overflow:hidden}
.mesh{position:absolute;inset:-20% -10% 0;z-index:0;pointer-events:none;
  background:
    radial-gradient(600px 400px at 18% 20%,rgba(56,189,248,.30),transparent 60%),
    radial-gradient(700px 500px at 85% 12%,rgba(37,99,235,.34),transparent 55%),
    radial-gradient(600px 600px at 60% 90%,rgba(29,78,216,.20),transparent 60%);
  filter:saturate(120%);animation:lGrad 14s var(--ease) infinite alternate;background-size:180% 180%}
.orb{position:absolute;border-radius:50%;filter:blur(30px);z-index:0;opacity:.55;pointer-events:none}
.orb.a{width:280px;height:280px;background:radial-gradient(circle,#38bdf8,transparent 70%);top:60px;left:-40px;animation:lFloat 10s var(--ease) infinite}
.orb.b{width:220px;height:220px;background:radial-gradient(circle,#2563eb,transparent 70%);bottom:20px;right:6%;animation:lFloat 13s var(--ease) infinite reverse}
.hero .wrap{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.badge-pill{display:inline-flex;align-items:center;gap:8px;background:rgba(37,99,235,.10);color:var(--blue-700);border:1px solid rgba(37,99,235,.20);border-radius:100px;padding:7px 14px;font-size:13px;font-weight:600;margin-bottom:22px}
.badge-pill .live{width:8px;height:8px;border-radius:50%;background:#22c55e;box-shadow:0 0 0 0 rgba(34,197,94,.5);animation:lPulse 1.6s infinite}
.hero h1{font-size:clamp(34px,5vw,58px);line-height:1.05;letter-spacing:-.03em;font-weight:820;margin-bottom:20px}
.hero p.lead{font-size:19px;color:var(--mut);max-width:540px;margin-bottom:30px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.hero-note{margin-top:18px;font-size:13px;color:var(--mut);display:flex;gap:18px;flex-wrap:wrap}
.hero-note b{color:var(--tx)}
/* typewriter */
.typer{font-size:clamp(18px,2.4vw,23px);font-weight:750;min-height:30px;margin:-8px 0 18px;letter-spacing:-.01em;color:var(--tx)}
.caret{display:inline-block;width:2px;height:1.05em;background:var(--blue-600);margin-left:3px;vertical-align:text-bottom;animation:lBlink 1s steps(1) infinite}
@keyframes lBlink{50%{opacity:0}}
/* integrations marquee */
.marquee{overflow:hidden;padding:26px 0;border-bottom:1px solid var(--bd);background:#fff;
  -webkit-mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);mask:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent)}
.marquee .lab{text-align:center;color:var(--mut);font-size:13px;font-weight:600;margin-bottom:16px}
.marquee-track{display:flex;gap:46px;width:max-content;animation:lMarquee 30s linear infinite}
.marquee:hover .marquee-track{animation-play-state:paused}
.marquee-item{display:flex;align-items:center;gap:9px;font-size:17px;font-weight:650;color:var(--tx);white-space:nowrap;opacity:.72;transition:opacity .2s}
.marquee-item:hover{opacity:1}
.marquee-item .ic{font-size:21px}
@keyframes lMarquee{to{transform:translateX(-50%)}}

/* Hero mockup (animated chat) */
.mock{position:relative;z-index:2;background:#fff;border:1px solid var(--bd);border-radius:var(--r-lg);box-shadow:var(--sh-lg);overflow:hidden;transform:perspective(1200px) rotateY(-9deg) rotateX(4deg);transition:transform .4s var(--ease)}
.mock:hover{transform:perspective(1200px) rotateY(-3deg) rotateX(1deg)}
.mock-head{background:var(--grad);color:#fff;padding:15px 18px;display:flex;align-items:center;gap:10px}
.mock-av{width:34px;height:34px;border-radius:50%;background:rgba(255,255,255,.22);display:flex;align-items:center;justify-content:center;font-weight:700}
.mock-head .nm{font-weight:650;font-size:15px}.mock-head .st{font-size:12px;opacity:.85}
.mock-badge{margin-left:auto;font-size:10px;font-weight:700;background:rgba(255,255,255,.2);padding:2px 7px;border-radius:6px}
.mock-body{padding:18px;background:#f7fafd;min-height:280px;display:flex;flex-direction:column;gap:10px}
.mb{max-width:82%;padding:10px 13px;border-radius:14px;font-size:13.5px;line-height:1.45;opacity:0;animation:lFadeUp .5s var(--ease) forwards}
.mb.ai{background:#fff;border:1px solid var(--bd);border-bottom-left-radius:5px}
.mb.me{background:var(--grad);color:#fff;align-self:flex-end;border-bottom-right-radius:5px}
.mb.b2{animation-delay:.8s}.mb.b3{animation-delay:1.7s}.mb.b4{animation-delay:2.6s}
.mock-foot{border-top:1px solid var(--bd);padding:12px 16px;font-size:12px;color:var(--mut);background:#fff;display:flex;align-items:center;gap:8px}
.mock-foot .ai-badge{font-size:9px;font-weight:700;background:rgba(37,99,235,.1);color:var(--blue-600);border:1px solid rgba(37,99,235,.2);border-radius:5px;padding:1px 5px}

/* floating stat cards around mock */
.float-card{position:absolute;z-index:3;background:#fff;border:1px solid var(--bd);border-radius:14px;box-shadow:var(--sh);padding:12px 15px;font-size:13px;font-weight:600;display:flex;align-items:center;gap:9px}
.float-card .ic{width:30px;height:30px;border-radius:9px;display:flex;align-items:center;justify-content:center;font-size:15px}
.float-card small{display:block;font-size:11px;color:var(--mut);font-weight:500}
.fc1{top:8%;left:-6%;animation:lFloat 8s var(--ease) infinite}
.fc2{bottom:10%;left:-9%;animation:lFloat 10s var(--ease) infinite reverse}

/* ---------- Trust strip ---------- */
.trust{border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);background:var(--bg2)}
.trust .wrap{display:flex;align-items:center;gap:14px;flex-wrap:wrap;justify-content:center;padding:22px}
.trust span{font-size:13px;color:var(--mut);font-weight:600}
.trust .tag{background:#fff;border:1px solid var(--bd);border-radius:100px;padding:7px 15px;font-size:13px;font-weight:600;color:var(--tx);box-shadow:var(--sh);display:flex;gap:7px;align-items:center}

/* ---------- Sections ---------- */
section{position:relative}
.sec{padding:96px 0}
.sec.tint{background:var(--bg2)}
.eyebrow{color:var(--blue-600);font-weight:750;font-size:13px;letter-spacing:.08em;text-transform:uppercase;margin-bottom:12px;text-align:center}
.sec h2{font-size:clamp(28px,3.6vw,42px);text-align:center;letter-spacing:-.02em;font-weight:800;margin-bottom:14px}
.sec .sub{text-align:center;color:var(--mut);font-size:17px;max-width:620px;margin:0 auto 52px}

.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.feat{background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:26px;box-shadow:var(--sh);transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s}
.feat:hover{transform:translateY(-6px);box-shadow:var(--sh-lg);border-color:rgba(37,99,235,.3)}
.feat .ic{width:50px;height:50px;border-radius:14px;background:var(--grad);display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;box-shadow:0 8px 18px rgba(37,99,235,.3)}
.feat h3{font-size:18px;margin-bottom:8px;letter-spacing:-.01em}
.feat p{color:var(--mut);font-size:14.5px}

/* steps */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;counter-reset:s}
.step{position:relative;padding-top:8px}
.step .n{width:44px;height:44px;border-radius:13px;background:rgba(37,99,235,.1);color:var(--blue-700);font-weight:800;font-size:19px;display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.step h3{font-size:19px;margin-bottom:8px}.step p{color:var(--mut);font-size:15px}

/* stats */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat{text-align:center;background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:28px 16px;box-shadow:var(--sh)}
.stat .num{font-size:44px;font-weight:850;letter-spacing:-.03em;line-height:1}
.stat .lab{color:var(--mut);font-size:14px;margin-top:8px}

/* pricing */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;align-items:stretch}
.plan{background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:26px 22px;box-shadow:var(--sh);display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease)}
.plan:hover{transform:translateY(-5px);box-shadow:var(--sh-lg)}
.plan.pop{border:2px solid var(--blue-600);box-shadow:0 24px 50px rgba(37,99,235,.22);position:relative}
.plan.pop::before{content:"Most popular";position:absolute;top:-13px;left:50%;transform:translateX(-50%);background:var(--grad);color:#fff;font-size:11px;font-weight:700;padding:5px 13px;border-radius:100px;white-space:nowrap}
.plan .pn{font-weight:750;font-size:16px}
.plan .pp{font-size:38px;font-weight:850;letter-spacing:-.03em;margin:8px 0 2px}
.plan .pp small{font-size:14px;color:var(--mut);font-weight:500}
.plan ul{list-style:none;margin:16px 0 22px;display:flex;flex-direction:column;gap:10px}
.plan li{font-size:13.5px;color:var(--tx);display:flex;gap:9px;align-items:flex-start}
.plan li::before{content:"✓";color:var(--blue-600);font-weight:800}
.plan .btn{width:100%;justify-content:center;margin-top:auto}

/* testimonials */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.quote{background:#fff;border:1px solid var(--bd);border-radius:var(--r);padding:26px;box-shadow:var(--sh)}
.quote p{font-size:15px;margin-bottom:16px;line-height:1.6}
.quote .who{display:flex;align-items:center;gap:12px}
.quote .who .av{width:40px;height:40px;border-radius:50%;background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700}
.quote .who b{display:block;font-size:14px}.quote .who small{color:var(--mut);font-size:12px}
.stars{color:#f59e0b;margin-bottom:12px;letter-spacing:2px}

/* CTA */
.cta{position:relative;overflow:hidden;background:var(--ink);color:#fff;border-radius:28px;padding:64px 40px;text-align:center;margin:0 22px}
.cta::before{content:"";position:absolute;inset:0;z-index:0;background:
  radial-gradient(600px 300px at 20% 0%,rgba(56,189,248,.4),transparent 60%),
  radial-gradient(700px 340px at 90% 100%,rgba(37,99,235,.5),transparent 55%);animation:lGrad 12s var(--ease) infinite alternate;background-size:160% 160%}
.cta *{position:relative;z-index:1}
.cta h2{font-size:clamp(28px,4vw,44px);margin-bottom:14px;letter-spacing:-.02em}
.cta p{color:rgba(255,255,255,.82);font-size:18px;margin-bottom:28px}
.cta .btn-primary{box-shadow:0 12px 34px rgba(0,0,0,.35)}

/* footer */
.foot{background:var(--ink);color:#93a3bd;padding:56px 0 34px;margin-top:96px}
.foot .wrap{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:30px}
.foot .brand{color:#fff;margin-bottom:12px}
.foot h4{color:#fff;font-size:13px;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.foot a{display:block;color:#93a3bd;font-size:14px;margin-bottom:9px;transition:color .2s}
.foot a:hover{color:#fff}
.foot .legal{grid-column:1/-1;border-top:1px solid #20304f;margin-top:30px;padding-top:22px;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px}

/* reveal-on-scroll — progressive: only hidden when JS is present, so no-JS shows all */
.reveal{transition:opacity .7s var(--ease),transform .7s var(--ease)}
.js .reveal{opacity:0;transform:translateY(30px)}
.js .reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}

@media(max-width:900px){
  .nav-links{display:none}.nav-toggle{display:block}
  .hero{padding:120px 0 70px}.hero .wrap{grid-template-columns:1fr;gap:48px}
  .grid3,.steps,.stats,.plans,.quotes,.foot .wrap{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr 1fr}.float-card{display:none}
  .mock{transform:none}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  .mb{opacity:1}
}