:root{--bg:#f9fafb;--fg:#111827;--card:#ffffff;--muted:#6b7280;--border:#e5e7eb}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--fg);font-family:ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Arial}
.container{max-width:1100px;margin:0 auto;padding:0 16px}
.header{display:flex;align-items:center;justify-content:space-between;padding:20px 0}
.header h1{margin:0;font-size:28px}
.actions button,.search-row button,.result .buy{background:#111827;color:#fff;border:none;border-radius:12px;padding:10px 14px;font-weight:600;cursor:pointer}
.card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:16px;margin:12px 0;box-shadow:0 1px 2px rgba(0,0,0,.06)}
.search-row{display:grid;grid-template-columns:1fr 140px;gap:12px}
.search-row input{padding:10px 12px;border:1px solid var(--border);border-radius:12px;width:100%}
.store-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(160px,1fr));gap:10px;margin-top:8px}
.store-grid a{display:block;text-align:center;padding:10px;border:1px solid var(--border);border-radius:12px;background:#f3f4f6;text-decoration:none;color:#111827;font-weight:600}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:12px;margin:16px 0}
.result{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:12px;display:flex;flex-direction:column}
.thumb{aspect-ratio:1/1;background:#f3f4f6;border-radius:12px;display:flex;align-items:center;justify-content:center;overflow:hidden;margin-bottom:10px}
.thumb img{max-width:100%;max-height:100%;object-fit:contain}
.title{font-weight:600;min-height:44px}
.meta{color:var(--muted);font-size:12px;margin-top:4px}
.price{font-size:20px;font-weight:700;margin-top:8px}
.row{display:flex;gap:8px;margin-top:10px}
.buy{flex:1;text-align:center}
.errors{color:#dc2626;margin-top:8px}
.empty{text-align:center;color:#6b7280;margin:24px 0}
.footer{padding:30px 0;color:#6b7280;font-size:14px}