:root{
  --bg:#f8fafc; --card:#ffffff; --muted:#64748b; --accent:#7c3aed; --accent-2:#06b6d4; --radius:12px;
  --container:1100px; --gap:24px; --txt:#0f172a;
}
*{box-sizing:border-box}
html,body{height:100%}
body{font-family:Inter,Segoe UI,Roboto,Helvetica,Arial,sans-serif;margin:0;background:linear-gradient(180deg,#fbfdff 0%,var(--bg) 100%);color:var(--txt);-webkit-font-smoothing:antialiased}
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

.site-header{position:sticky;top:0;background:rgba(255,255,255,0.8);backdrop-filter:blur(6px);border-bottom:1px solid rgba(15,23,42,0.04)}
.header-inner{display:flex;align-items:center;gap:16px;padding:14px 0}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--txt)}
.logo .brand{font-weight:700;letter-spacing:0.2px}
.nav{margin-left:auto;display:flex;gap:18px}
.nav a{color:var(--muted);text-decoration:none;font-weight:600}
.cta{margin-left:14px;background:linear-gradient(90deg,var(--accent),var(--accent-2));color:white;padding:8px 12px;border-radius:8px;text-decoration:none;font-weight:700}

.hero{padding:56px 0}
.hero-grid{display:grid;grid-template-columns:1fr 420px;gap:32px;align-items:center}
.hero-copy h1{font-size:clamp(28px,4vw,42px);margin:0 0 12px}
.lede{color:var(--muted);margin:0 0 18px}
.hero-actions{display:flex;gap:12px;margin:16px 0}
.btn{display:inline-block;padding:10px 16px;border-radius:10px;text-decoration:none;font-weight:700}
.btn.primary{background:linear-gradient(90deg,var(--accent),#5b21b6);color:#fff}
.btn.ghost{background:transparent;border:2px solid rgba(15,23,42,0.06);color:var(--txt)}
.trust{list-style:none;padding:0;margin:16px 0 0;color:var(--muted)}

.hero-visual .mock{background:var(--card);border-radius:16px;padding:14px;box-shadow:0 8px 30px rgba(15,23,42,0.06);border:1px solid rgba(15,23,42,0.04)}
.mock-header{font-weight:700;padding:8px 0;border-bottom:1px dashed rgba(15,23,42,0.04);color:var(--muted)}
.mock-body{padding:12px}
.msg{padding:10px 12px;border-radius:10px;margin:10px 0;max-width:85%}
.from-agent{background:linear-gradient(90deg,#eef2ff,#f0f9ff);align-self:flex-start}
.from-guest{background:#0f172a;color:#fff;align-self:flex-end;margin-left:auto}

.section{padding:48px 0}
.section h2{margin:0 0 8px}
.section-lead{color:var(--muted);margin:0 0 20px}
.cards{display:flex;gap:16px;flex-wrap:wrap}
.card{background:var(--card);padding:20px;border-radius:12px;flex:1;min-width:220px;box-shadow:0 6px 18px rgba(15,23,42,0.04)}

.use-cases .case-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.contact-grid{display:grid;grid-template-columns:1fr 420px;gap:28px;align-items:start}
.contact-form{background:var(--card);padding:18px;border-radius:12px;box-shadow:0 8px 20px rgba(15,23,42,0.04)}
.contact-form label{display:block;margin-bottom:10px;font-weight:600;color:var(--muted)}
.contact-form input,.contact-form textarea{width:100%;padding:10px;border-radius:8px;border:1px solid rgba(15,23,42,0.06);margin-top:6px}
.form-actions{display:flex;gap:10px;margin-top:8px}
.fine{color:var(--muted);font-size:13px;margin-top:10px}

.site-footer{border-top:1px solid rgba(15,23,42,0.04);padding:18px 0;margin-top:36px}
.footer-inner{display:flex;justify-content:space-between;align-items:center}
.footer-links a{color:var(--muted);text-decoration:none;margin-left:10px}

@media (max-width:880px){
  .hero-grid,.contact-grid{grid-template-columns:1fr}
  .nav{display:none}
  .hero{padding:36px 0}
}