*{box-sizing:border-box}
body{margin:0;background:#f5f7fb;color:#17243c;font:16px/1.55 Arial,sans-serif}
a{color:inherit}
.seller-header{padding:20px max(20px,calc((100vw - 1100px)/2));background:#fff;display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #dce3ed;gap:16px}
.seller-brand{font-size:22px;letter-spacing:3px;font-weight:900;text-decoration:none}
.seller-header nav{display:flex;gap:18px;align-items:center;font-size:14px}
.seller-header nav a{text-decoration:none}
.seller-main{width:min(1100px,calc(100% - 32px));margin:40px auto 70px}
.seller-intro{max-width:700px;margin-bottom:28px}
h1{font-family:Georgia,serif;font-weight:400;font-size:clamp(32px,5vw,50px);line-height:1.15;margin:14px 0}
h2{font-size:20px;line-height:1.25}
.seller-eyebrow{font-size:12px;letter-spacing:2px;font-weight:700}
.seller-mode{display:inline-block;border:1px solid #dbe2f1;background:#eef1ff;border-radius:30px;font-size:12px;padding:5px 12px}
.seller-panel{background:#fff;border:1px solid #dce3ed;border-radius:18px;padding:24px}
.seller-filters{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
label{display:block;font-size:14px;font-weight:700;margin:8px 0}
input,select,textarea{display:block;width:100%;padding:12px;font:inherit;border:1px solid #c8d1e1;border-radius:9px;margin-top:6px;background:#fff}
textarea{resize:vertical}
button,.button{display:inline-block;border:0;border-radius:9px;padding:12px 16px;background:#133eed;color:#fff;font:inherit;font-weight:700;cursor:pointer;text-decoration:none}
.secondary{background:#edf2ff;color:#133eed}
button:disabled{opacity:.5;cursor:default}
.seller-actions{display:flex;gap:12px;flex-wrap:wrap;margin:18px 0}
.seller-panel small,.seller-help{color:#58677f;font-size:13px}
#seller-reply{font-size:18px;margin:28px 0 18px}
.seller-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.seller-card{padding:20px;border:1px solid #dce3ed;border-radius:16px;background:#fff;display:flex;flex-direction:column}
.seller-card img{width:100%;height:200px;object-fit:contain}
.seller-card p{font-size:14px;margin:12px 0}
.seller-card small{font-size:12px;color:#58677f;display:block}
.seller-card .seller-actions{margin-top:auto;padding-top:18px}
.seller-card .button,.seller-card button{font-size:13px;padding:10px 12px}
.seller-price{font-size:23px;margin-bottom:8px}
.seller-bottom{padding-top:14px;border-top:1px solid #dce3ed}
.cart-toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:#133eed;color:#fff;padding:12px 18px;border-radius:10px;opacity:0;pointer-events:none}
.cart-toast.show,.cart-toast.visible,.cart-toast.is-visible{opacity:1}
:focus-visible{outline:3px solid #4944e3;outline-offset:3px}
@media(max-width:650px){.seller-filters,.seller-cards{grid-template-columns:1fr}
.seller-card img{height:170px}
.seller-main{margin-top:26px}
.seller-panel{padding:18px}
.seller-header{padding:16px}
.seller-brand{font-size:18px}
.seller-header nav{gap:10px;font-size:12px}
.seller-card .seller-actions{margin-bottom:0}
}