:root{--ink:#2b2340;--muted:#7a7290;--bg:#faf8f5;--card:#fff;--accent:#b2552d}
*{box-sizing:border-box;margin:0}
body{font-family:Georgia,'Times New Roman',serif;background:var(--bg);color:var(--ink)}
a{color:inherit;text-decoration:none}
header{padding:2.2rem 1rem 1.4rem;text-align:center}
header h1{font-size:2rem;letter-spacing:.04em}
header p{color:var(--muted);margin-top:.4rem;font-style:italic}
nav{display:flex;gap:.5rem;justify-content:center;flex-wrap:wrap;padding:0 1rem 1.5rem}
nav button{font:inherit;border:1px solid var(--muted);background:none;border-radius:999px;
  padding:.35rem 1rem;cursor:pointer;color:var(--muted)}
nav button.on{background:var(--ink);border-color:var(--ink);color:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:1.2rem;
  max-width:1200px;margin:0 auto;padding:0 1rem 3rem}
.tile{background:var(--card);border-radius:10px;overflow:hidden;
  box-shadow:0 1px 4px rgba(43,35,64,.08);display:block}
.tile img{width:100%;aspect-ratio:1;object-fit:cover;display:block}
.tile .t{padding:.7rem .85rem 0;font-size:.92rem;line-height:1.35}
.tile .p{padding:.35rem .85rem .85rem;color:var(--accent);font-weight:bold}
.tile .p s{color:var(--muted);font-weight:normal;margin-left:.4rem}
main.detail{max-width:900px;margin:0 auto;padding:1rem;display:grid;
  grid-template-columns:1fr 1fr;gap:2rem}
main.detail img{width:100%;border-radius:10px}
main.detail h1{font-size:1.4rem;line-height:1.3}
main.detail .price{font-size:1.5rem;color:var(--accent);margin:.8rem 0}
main.detail .price s{font-size:1rem;color:var(--muted)}
.buy{display:inline-block;background:var(--accent);color:#fff;border-radius:8px;
  padding:.8rem 1.8rem;font-size:1.05rem;margin:.4rem 0 1.4rem}
main.detail .desc{color:#4a4360;font-size:.95rem;line-height:1.55;white-space:pre-line}
footer{text-align:center;color:var(--muted);padding:2.5rem 1rem;font-size:.85rem}
@media(max-width:640px){main.detail{grid-template-columns:1fr}}