*{box-sizing:border-box}
:root{--purple:#6b3fa0;--border:#e8e8f0}
body{margin:0;font-family:Arial,Helvetica,sans-serif;color:#222;background:#fff}
header{position:sticky;top:0;background:#fff;z-index:10;display:flex;gap:16px;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--border)}
.brand{font-weight:800}
nav a{margin:0 10px;text-decoration:none;color:#444;font-weight:600}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.hero{padding:28px 0 10px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px;align-items:center}
h1{margin:0 0 10px;font-size:40px;line-height:1.1}
p{margin:0 0 14px;color:#555}
.btn{display:inline-block;margin:6px 10px 0 0;padding:12px 18px;background:var(--purple);color:#fff;border-radius:10px;text-decoration:none;font-weight:800}
.btn.alt{background:#fff;color:var(--purple);border:2px solid var(--purple)}
.hero-visual{border-radius:16px;overflow:hidden;border:1px solid var(--border)}
.hero-visual img{display:block;width:100%;height:auto}
.section{padding:26px 0}
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.card{border:1px solid var(--border);border-radius:14px;padding:14px;background:#fff}
.card h3{margin:0 0 6px;font-size:16px}
.small{font-size:13px;color:#666}
footer{border-top:1px solid var(--border);padding:18px 0;margin-top:10px;color:#555}
@media(max-width:900px){
  .hero-grid{grid-template-columns:1fr}
  .cards{grid-template-columns:1fr 1fr}
  h1{font-size:34px}
}
@media(max-width:520px){
  .cards{grid-template-columns:1fr}
  h1{font-size:30px}
  nav a{margin:0 6px}
}