:root{
  --ink:#e8e4dc;
  --ink-dim:#948d80;
  --bg:#232120;
  --bg-deep:#191817;
  --panel:#2b2928;
  --panel-2:#332f2d;
  --brass:#b98f4e;
  --brass-bright:#d4aa68;
  --line:rgba(232,228,220,.10);
  --danger:#e2665b;
  --radius:2px;
  --display:Georgia,'Iowan Old Style','Times New Roman',serif;
  --sans:-apple-system,BlinkMacSystemFont,'Segoe UI',Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:
    radial-gradient(70% 50% at 50% 0%, rgba(185,143,78,.06) 0%, transparent 60%),
    var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  line-height:1.6;
  min-height:100vh;
}
a{color:inherit;text-decoration:none}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}

/* ---- header ---- */
.site-header{position:sticky;top:0;z-index:20;background:rgba(25,24,23,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.site-header__inner{display:flex;align-items:center;gap:28px;padding:20px 24px}
.brand{font-family:var(--display);font-size:18px;font-weight:400;letter-spacing:.24em;margin-right:auto}
.brand--footer{font-size:15px;margin:0 0 10px}
.brand__zero{color:var(--brass);font-style:italic}
.main-nav{display:flex;gap:26px;font-size:11px;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.14em}
.main-nav a:hover{color:var(--brass)}
.cart-pill{display:flex;align-items:center;justify-content:center;width:26px;height:26px;border:1px solid var(--brass);border-radius:50%;font-size:11px;color:var(--brass)}
.cart-pill:hover{background:rgba(185,143,78,.1)}

/* ---- hero ---- */
.hero{max-width:720px;margin:80px auto 48px;padding:0 24px;text-align:center}
.hero--tight{margin:56px auto 32px}
.hero__eyebrow{color:var(--brass);text-transform:uppercase;letter-spacing:.22em;font-size:11px;margin:0 0 20px}
.hero h1{font-family:var(--display);font-size:clamp(28px,3.8vw,42px);line-height:1.25;margin:0 0 20px;font-weight:400}
.hero__sub{color:var(--ink-dim);font-size:15.5px;max-width:520px;margin:0 auto;line-height:1.8}

/* ---- filters ---- */
.toolbar{display:flex;gap:6px;flex-wrap:wrap;justify-content:center;max-width:1100px;margin:0 auto 48px;padding:0 24px}
.chip{background:transparent;border:1px solid var(--line);color:var(--ink-dim);padding:7px 18px;border-radius:0;font-size:10.5px;text-transform:uppercase;letter-spacing:.1em;cursor:pointer;transition:.2s}
.chip:hover{border-color:var(--brass)}
.chip.active{background:var(--brass);border-color:var(--brass);color:var(--bg-deep)}

/* ---- grid / cards (spotlit museum vitrine feel) ---- */
.grid{max-width:1100px;margin:0 auto;padding:0 24px 80px;display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:32px}
.card{background:var(--panel);border:1px solid var(--line);display:flex;flex-direction:column;transition:transform .2s, box-shadow .2s}
.card:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.35)}
.card-cover{position:relative;display:block;aspect-ratio:1/1;background:
    radial-gradient(60% 60% at 50% 35%, rgba(185,143,78,.14) 0%, transparent 70%),
    var(--bg-deep);overflow:hidden}
.card-cover img{width:100%;height:70%;object-fit:contain;display:block;margin:15% auto 0;filter:drop-shadow(0 10px 18px rgba(0,0,0,.5))}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:8px;flex:1;border-top:1px solid var(--line)}
.card-tags{display:flex;gap:8px}
.tag{font-size:9.5px;text-transform:uppercase;letter-spacing:.1em;color:var(--brass)}
.card-title{font-family:var(--display);font-size:17px;margin:0;line-height:1.35;font-weight:400}
.card-desc{color:var(--ink-dim);font-size:12.5px;margin:0;flex:1;line-height:1.6}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:4px;padding-top:12px;border-top:1px dotted var(--line)}
.card-price{font-family:var(--display);font-size:14px;color:var(--ink)}
.card-cta{background:transparent;border:1px solid var(--brass);color:var(--brass);font-size:10px;text-transform:uppercase;letter-spacing:.1em;padding:6px 14px;cursor:pointer;transition:.2s}
.card-cta:hover{background:var(--brass);color:var(--bg-deep)}
.card-cta.in-cart{border-color:var(--line);color:var(--ink-dim);cursor:default}
.card-cta--lg{padding:13px 34px;font-size:11px;margin-top:14px}
.empty{text-align:center;color:var(--ink-dim);padding:60px 0}

/* ---- artifact detail ---- */
.artifact{max-width:960px;margin:0 auto;padding:0 24px 40px;display:grid;grid-template-columns:320px 1fr;gap:56px}
.artifact__cover{aspect-ratio:1/1;background:
    radial-gradient(60% 60% at 50% 35%, rgba(185,143,78,.16) 0%, transparent 70%),
    var(--panel);border:1px solid var(--line);display:flex;align-items:flex-end;justify-content:center;overflow:hidden}
.artifact__cover img{width:70%;height:70%;object-fit:contain;filter:drop-shadow(0 14px 22px rgba(0,0,0,.55));margin-bottom:8%}
.artifact__info h1{font-family:var(--display);font-weight:400;font-size:30px;margin:14px 0 10px}
.artifact__price{font-family:var(--display);font-size:18px;color:var(--brass);margin:0 0 20px}
.artifact__placard{background:var(--panel);border:1px solid var(--line);border-left:2px solid var(--brass);padding:18px 22px;margin:0 0 24px}
.artifact__placard-label{text-transform:uppercase;font-size:10px;letter-spacing:.14em;color:var(--brass);margin:0 0 12px}
.artifact__desc{color:var(--ink);line-height:1.85;margin:0;font-size:15px}
.artifact__back{margin-top:24px;font-size:11px;text-transform:uppercase;letter-spacing:.1em}
.artifact__back a{color:var(--ink-dim)}
.artifact__back a:hover{color:var(--brass)}
@media (max-width:680px){.artifact{grid-template-columns:1fr}.artifact__cover{max-width:280px;margin:0 auto}}

/* ---- related ---- */
.related{max-width:1100px;margin:30px auto 0;padding:56px 24px 0;border-top:1px solid var(--line)}
.related__title{font-family:var(--display);font-weight:400;font-size:21px;margin:0 0 32px;text-align:center;letter-spacing:.02em}
.related .grid{padding:0 0 80px;grid-template-columns:repeat(auto-fill,minmax(170px,1fr));gap:22px}
.related .card-title{font-size:14px}
.related .card-desc{display:none}

/* ---- cart / checkout / auth ---- */
.cart-list{max-width:620px;margin:0 auto;padding:0 24px;display:flex;flex-direction:column}
.cart-row{display:flex;align-items:center;gap:18px;padding:16px 0;border-bottom:1px solid var(--line)}
.cart-row__cover{width:56px;height:56px;overflow:hidden;flex-shrink:0;background:var(--bg-deep);display:flex;align-items:center;justify-content:center}
.cart-row__cover img{width:75%;height:75%;object-fit:contain}
.cart-row__info{flex:1}
.cart-row__info h3{font-family:var(--display);font-weight:400;font-size:15px;margin:0 0 4px}
.cart-row__info p{margin:0;color:var(--ink-dim);font-size:12.5px}
.cart-row__remove{background:transparent;border:none;color:var(--ink-dim);cursor:pointer;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;text-decoration:underline}
.cart-row__remove:hover{color:var(--danger)}
.cart-total{max-width:620px;margin:28px auto 20px;padding:0 24px;display:flex;justify-content:space-between;align-items:baseline;font-family:var(--display);font-size:18px}
.cart-total--summary{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 24px;margin-bottom:28px}
.empty-cart{text-align:center;color:var(--ink-dim);padding:60px 24px}
.auth-form,.legal-text{max-width:400px;margin:0 auto;padding:0 24px;display:flex;flex-direction:column;gap:18px}
.legal-text{max-width:620px;color:var(--ink-dim);line-height:1.85;font-size:14.5px}
.legal-text p{margin:0 0 18px}
.auth-form label{display:flex;flex-direction:column;gap:8px;font-size:11px;color:var(--ink-dim);text-transform:uppercase;letter-spacing:.08em}
.auth-form input{background:var(--panel);border:1px solid var(--line);padding:10px 12px;color:var(--ink);font-size:14px;font-family:var(--sans)}
.auth-form input:focus{outline:none;border-color:var(--brass)}
.auth-alt{text-align:center;color:var(--ink-dim);font-size:12.5px}
.auth-alt a{color:var(--brass)}
.form-error{max-width:400px;margin:0 auto 18px;padding:0 24px;color:var(--danger);font-size:13px;text-align:center}

/* ---- footer ---- */
.site-footer{border-top:1px solid var(--line);margin-top:50px}
.site-footer__inner{max-width:1100px;margin:0 auto;padding:48px 24px;text-align:center;color:var(--ink-dim);font-size:12px}
.site-footer__inner p{margin:0 0 12px}
.site-footer nav{display:flex;gap:22px;justify-content:center;text-transform:uppercase;letter-spacing:.1em;font-size:10.5px}
.site-footer a:hover{color:var(--brass)}