:root{
  --bg:#fafafa;
  --accent:#e60023; /* H&M-ish red */
  --muted:#6b6b6b;
  --card:#ffffff;
  --glass: rgba(255,255,255,0.6);
  --radius:12px;
  --container:1100px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:"Poppins",system-ui,-apple-system,Segoe UI,Roboto,"Helvetica Neue",Arial;
  background:var(--bg);
  color:#111;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* layout */
.container{max-width:var(--container);margin:0 auto;padding:0 20px}

/* header */
.site-header{
  position:sticky;top:0;z-index:40;
  backdrop-filter: blur(6px);
  background:linear-gradient(180deg, rgba(255,255,255,0.8), rgba(255,255,255,0.6));
  border-bottom:1px solid rgba(0,0,0,0.05);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:14px 0}
.logo{font-weight:700;font-size:20px;letter-spacing:1px}
.nav{display:flex;gap:8px;align-items:center}
.nav-btn{background:none;border:none;padding:8px 12px;border-radius:8px;cursor:pointer;font-weight:600;color:var(--muted)}
.nav-btn.active{background:rgba(0,0,0,0.04);color:#111;transform:translateY(-2px)}
.icon{background:none;border:none;margin-left:6px;font-size:18px;cursor:pointer}

/* hero */
.hero{
  height:56vh;
  min-height:420px;
  display:flex;
  align-items:center;
  justify-content:center;
  background-image:
    linear-gradient(180deg, rgba(0,0,0,0.15), rgba(0,0,0,0.18)),
    url('https://images.unsplash.com/photo-1556900103-18c46d707f1e?q=80&w=2000&auto=format&fit=crop&ixlib=rb-4.0.3&s=1c9f8a8ffbb7c0b6b6f6e4ff2a2a0b34');
  background-size:cover;
  background-position:center;
  position:relative;
  animation:heroFade 900ms ease both;
}
@keyframes heroFade{
  from{opacity:0;transform:translateY(12px)}
  to{opacity:1;transform:none}
}
.hero-overlay{color:#fff;text-align:center;padding:40px 20px}
.hero-title{font-size:36px;margin:0 0 8px 0;letter-spacing:0.6px}
.hero-sub{margin:0 0 18px 0;color:rgba(255,255,255,0.9)}
.cta{background:var(--accent);border:none;color:#fff;padding:12px 18px;border-radius:10px;font-weight:600;cursor:pointer;margin:0 6px;box-shadow:0 8px 18px rgba(230,0,35,0.14);transition:transform .18s ease}
.cta.secondary{background:rgba(255,255,255,0.14);border:1px solid rgba(255,255,255,0.18)}
.cta:hover{transform:translateY(-4px)}

/* collections */
.collections{padding:56px 0}
.section-title{font-size:22px;margin:0 0 18px}
.filters{display:flex;gap:10px;margin-bottom:18px}
.filter-btn{border:1px solid rgba(0,0,0,0.06);background:#fff;padding:8px 12px;border-radius:8px;cursor:pointer}
.filter-btn.active{background:var(--accent);color:#fff;border-color:var(--accent)}

/* product grid */
.product-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(220px,1fr));
  gap:20px;
}
.card{
  background:var(--card);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:0 6px 18px rgba(17,17,17,0.06);
  transform-origin:center;
  transition:transform .28s cubic-bezier(.2,.9,.2,1), box-shadow .28s;
  position:relative;
  min-height:320px;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-10px) scale(1.01);box-shadow:0 20px 40px rgba(17,17,17,0.12)}
.card .photo{
  height:260px;background:#f6f6f6;overflow:hidden;display:flex;align-items:center;justify-content:center;position:relative;
}
.card img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.card:hover img{transform:scale(1.07)}
.card .info{padding:12px 14px;display:flex;flex-direction:column;gap:8px}
.card .title{font-weight:600}
.card .price{color:var(--muted);font-weight:600}
.badge{
  position:absolute;left:12px;top:12px;background:linear-gradient(90deg,var(--accent),#ff5266);color:#fff;padding:6px 8px;border-radius:8px;font-size:13px;box-shadow:0 6px 14px rgba(230,0,35,0.12)
}

/* lightbox */
.lightbox{position:fixed;inset:0;display:none;align-items:center;justify-content:center;background:rgba(0,0,0,0.6);z-index:80}
.lightbox[aria-hidden="false"]{display:flex}
.lightbox-content{max-width:90%;max-height:90%;background:transparent;padding:18px;border-radius:10px;position:relative;display:flex;flex-direction:column;align-items:center}
.lightbox img{max-width:100%;max-height:70vh;border-radius:8px;box-shadow:0 20px 40px rgba(0,0,0,0.5)}
.close{position:absolute;right:8px;top:8px;background:rgba(255,255,255,0.9);border:none;padding:8px;border-radius:50%;cursor:pointer}
.caption{margin-top:10px;color:#fff;opacity:.95}

/* footer */
.site-footer{padding:20px 0;background:transparent;border-top:1px solid rgba(0,0,0,0.04)}
.footer-inner{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:14px}

/* responsive */
@media (max-width:720px){
  .header-inner{gap:8px}
  .hero-title{font-size:24px}
  .card .photo{height:210px}
  .footer-inner{flex-direction:column;gap:8px}
}