:root{
  --max: 980px;
  --pad: 18px;
  --radius: 14px;
  --line: #e6e6e6;
  --muted:#666;
  --bg:#ffffff;
}

*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  line-height:1.55;
  color:#111;
  background:var(--bg);
}

a{color:inherit}
a:hover{text-decoration:underline}
.container{max-width:var(--max);margin:0 auto;padding:0 var(--pad)}

header{
  position:sticky; top:0;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  z-index:10;
}
.nav{
  display:flex; align-items:center; justify-content:space-between;
  gap:14px; padding:12px 0;
}
.brand{
  display:flex; align-items:center; gap:10px;
  font-weight:800; letter-spacing:.2px;
  text-decoration:none;
}
.badge{
  font-size:.78rem; border:1px solid var(--line);
  padding:.12rem .5rem; border-radius:999px;
  color:var(--muted);
}
.menu{display:flex; gap:12px; flex-wrap:wrap; justify-content:flex-end}
.menu a{padding:.35rem .55rem; border-radius:10px; text-decoration:none}
.menu a:hover{background:#f6f6f6; text-decoration:none}
.menu a.active{background:#111; color:#fff}

main{padding:28px 0 40px}
.hero{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:22px;
  background:linear-gradient(180deg,#fff,#fafafa);
}
.hero h1{margin:0 0 6px;font-size:2rem;line-height:1.2}
.hero p{margin:0 0 14px;color:var(--muted);max-width:65ch}
.btns{display:flex; gap:10px; flex-wrap:wrap}
.btn{
  display:inline-block;
  padding:.65rem 1rem;
  border-radius:12px;
  border:1px solid #111;
  text-decoration:none;
}
.btn.primary{background:#111;color:#fff}
.btn.ghost{background:#fff;color:#111;border-color:var(--line)}
.btn:hover{text-decoration:none; opacity:.92}

.grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
  margin-top:14px;
}
.card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
  background:#fff;
}
.card h3{margin:0 0 6px;font-size:1.05rem}
.card p{margin:0;color:var(--muted)}
.kicker{color:var(--muted); font-size:.95rem}

.section{margin-top:24px}
.section h2{margin:0 0 10px}

.list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.product{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:16px;
}
.product .top{display:flex;justify-content:space-between;gap:10px;align-items:flex-start}
.price{font-weight:800}
.small{font-size:.92rem;color:var(--muted)}
.hr{border-top:1px solid var(--line); margin:16px 0}

footer{
  border-top:1px solid var(--line);
  padding:18px 0;
  color:var(--muted);
  font-size:.95rem;
}
.footergrid{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}
.footergrid a{color:var(--muted);text-decoration:none}
.footergrid a:hover{text-decoration:underline}

@media (max-width: 820px){
  .grid{grid-template-columns:1fr}
  .list{grid-template-columns:1fr}
  .hero h1{font-size:1.65rem}
}