*{box-sizing:border-box;margin:0;padding:0}
body{font-family:Arial,Helvetica,sans-serif;color:#1f2937;line-height:1.6;background:#fff}
a{color:#2563eb;text-decoration:none}
.container{max-width:1200px;margin:0 auto;padding:0 14px}
header{background:#0f172a;color:#fff}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:16px 0}
.logo img{height:100px;width:auto;display:block}
nav ul{list-style:none;display:flex;gap:18px}
nav a{color:#e5e7eb;font-size:15px}
section{padding:28px 0}
h1{font-size:22px;margin-bottom:14px}
p{margin-bottom:14px}
.categories{display:grid;grid-template-columns:1fr;gap:12px}
.category{border:1px solid #e5e7eb;padding:14px;border-radius:4px}
.breadcrumbs{font-size:12px;color:#6b7280;margin-bottom:16px}
footer{background:#020617;color:#9ca3af;padding:24px 0;margin-top:32px;font-size:13px}
@media(min-width:768px){
  h1{font-size:32px}
  section{padding:56px 0}
  .container{padding:0 32px}
  .categories{grid-template-columns:repeat(auto-fill,minmax(260px,1fr));gap:24px}
}