:root{--zap:#25d366;--zap-dark:#1eb257;--ink:#0b3b2e;--deep:#06291f;--bg:#f8faf7;--muted:#5b6b63;--line:#e4ebe5;--card:#fff;--r:16px;--shadow:0 1px 2px #0b3b2e0f, 0 8px 30px #0b3b2e0f}*{box-sizing:border-box}html{scroll-behavior:smooth}body{background:var(--bg);color:var(--ink);-webkit-font-smoothing:antialiased;margin:0;font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;font-size:17px;line-height:1.6}a{color:inherit;text-decoration:none}h1,h2,h3{letter-spacing:-.02em;margin:0;line-height:1.1}h1{font-size:clamp(34px,5vw,56px);font-weight:800}h2{font-size:clamp(26px,3.4vw,38px);font-weight:700}h3{font-size:19px;font-weight:700}p{margin:0}.container{max-width:1120px;margin:0 auto;padding:0 22px}.section{padding:84px 0}.section.tight{padding:56px 0}.muted{color:var(--muted)}.center{text-align:center}.eyebrow{color:var(--zap-dark);letter-spacing:.06em;text-transform:uppercase;font-size:13px;font-weight:700}.btn{cursor:pointer;border:1px solid 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a{color:var(--muted);font-size:15px;font-weight:500}.site-nav a:hover{color:var(--ink)}.spacer{flex:1}.header-cta{align-items:center;gap:10px;display:flex}@media (max-width:860px){.site-nav,.header-cta .login{display:none}}.hero{padding:70px 0 40px}.hero-grid{grid-template-columns:1.05fr .95fr;align-items:center;gap:40px;display:grid}@media (max-width:900px){.hero-grid{grid-template-columns:1fr;gap:28px}}.hero h1{margin-top:14px}.hero p.lead{color:var(--muted);max-width:540px;margin-top:18px;font-size:20px}.hero-cta{flex-wrap:wrap;gap:12px;margin-top:28px;display:flex}.hero-note{color:var(--muted);margin-top:14px;font-size:14px}.hero-art{background:linear-gradient(160deg, var(--ink), var(--deep));box-shadow:var(--shadow);border-radius:24px;padding:28px}.chat{background:#0e4233;border-radius:16px;flex-direction:column;gap:10px;padding:16px;display:flex}.bubble{border-radius:14px;max-width:82%;padding:10px 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