:root{
  --ink:#1f2937;
  --muted:#4b5563;
  --brand:#4f46e5;
  --brand-dark:#4338ca;
  --accent:#10b981;
  --bg:#ffffff;
  --soft:#f9fafb;
  --border:#e5e7eb;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font-family:system-ui,-apple-system,Segoe UI,Roboto,Inter,Ubuntu,Arial,sans-serif;color:var(--ink);background:var(--bg);line-height:1.65}
.container{max-width:1100px;margin:0 auto;padding:0 20px}
.header{position:sticky;top:0;background:rgba(255,255,255,.9);backdrop-filter:saturate(140%) blur(6px);border-bottom:1px solid var(--border);z-index:20}
.nav{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.brand{display:flex;align-items:center;gap:12px}
.badge{width:40px;height:40px;display:grid;place-items:center;background:var(--brand);color:#fff;border-radius:12px;font-weight:700}
.nav a{margin-left:18px;text-decoration:none;color:var(--ink)}
.nav a:hover{color:var(--brand)}
.btn{display:inline-block;background:var(--brand);color:#fff;padding:.65rem 1rem;border-radius:12px;text-decoration:none}
.btn:hover{background:var(--brand-dark)}
.btn-outline{display:inline-block;border:1px solid var(--brand);padding:.6rem 1rem;border-radius:12px;text-decoration:none;color:var(--brand)}
.hero{background:linear-gradient(135deg,#eef2ff,#ecfdf5);padding:64px 0;text-align:center;border-bottom:1px solid var(--border)}
.hero h1{font-size:clamp(28px,4vw,48px);margin:0 0 8px}
.hero p{max-width:720px;margin:0 auto 18px;color:var(--muted);font-size:clamp(16px,2vw,20px)}
.section{padding:56px 0}
.grid{display:grid;gap:24px}
.split{grid-template-columns:1.2fr .8fr}
.card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:20px}
.soft{background:var(--soft);border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
h2{font-size:clamp(22px,3vw,32px);margin:0 0 10px}
h3{margin:0 0 10px}
ul{padding-left:18px;margin:0}
footer{padding:24px 0;border-top:1px solid var(--border);color:var(--muted);font-size:14px;text-align:center}
.footer-nav a{margin:0 10px;text-decoration:none;color:var(--muted)}
.footer-nav a:hover{color:var(--brand)}
label{display:block;font-weight:600;font-size:14px}
input,textarea{width:100%;padding:12px;border:1px solid var(--border);border-radius:12px;margin-top:6px}
textarea{resize:vertical}
.form-note{font-size:12px;color:var(--muted)}
.form-card{max-width:560px;margin:0 auto}
.thanks{min-height:50vh;display:grid;place-items:center;text-align:center}
@media (min-width: 860px){ .grid.cols-3{grid-template-columns:repeat(3,1fr)} }
@media (min-width: 760px){ .split{grid-template-columns:1.2fr .8fr} }
@media (max-width: 759px){ .nav .hide-sm{display:none} }