/* Dark, modern look similar to your screenshot */
:root{
  --bg:#2b2b2b;
  --panel:#333;
  --text:#00BFA6;
  --muted:#cbd5e1;
  --brand:#FFF8DC; /* golden heading */
  --card:#2f2f2f;
  --ring:#444;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--text);font-family:Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif}
header, footer{background:#111;padding:16px;text-align:center}
h1,h2{color:var(--brand);margin:0 0 12px}
.container{max-width:1200px;margin:0 auto;padding:16px}

.grid{
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(220px,1fr));
}
.card{
  background:var(--card);border:1px solid var(--ring);border-radius:12px;
  box-shadow:0 4px 18px rgba(0,0,0,.35);
  overflow:hidden;transition:transform .15s ease, box-shadow .2s ease;text-decoration:none;color:var(--text);
}
.card:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(0,0,0,.45)}
.card .media{padding:12px 12px 0}
.card img{width:100%;height:auto;border-radius:8px}
.card .content{padding:12px}
.card .title{font-weight:700;margin-bottom:6px}
.swatches{display:flex;gap:8px;flex-wrap:wrap}
.swatch{width:18px;height:18px;border-radius:999px;border:1px solid #fff;box-shadow:0 0 0 2px rgba(0,0,0,.15) inset}

.actions{display:flex;gap:10px;flex-wrap:wrap;margin-top:10px}
.btn{
  border:1px solid var(--ring);background:#222;border-radius:10px;padding:10px 14px;color:var(--text);cursor:pointer;font-weight:700;text-decoration:none;display:inline-block
}
.btn.primary{background:#0ea5e9;border-color:#0ea5e9;color:white}
.btn.gold{background:#d4af37;border-color:#d4af37;color:#111}

.preview-wrap{display:flex;gap:24px;align-items:flex-start;flex-wrap:wrap}
.panel{background:var(--panel);border:1px solid var(--ring);border-radius:12px;padding:16px;min-width:280px;flex:1}
.tshirt-stage{position:relative;width:360px;max-width:90vw;aspect-ratio:1/1;background:#1b1b1b;border:1px dashed var(--ring);border-radius:12px;display:flex;align-items:center;justify-content:center}
.tshirt-stage img{max-width:88%;height:auto}

label{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}
input[type="text"], select, input[type="number"], input[type="color"]{
  width:100%;padding:10px;border:1px solid var(--ring);border-radius:10px;background:#222;color:var(--text);margin-bottom:10px
}

footer p{margin:0;color:#cbd5e1}

.order-box{text-align:center;padding:32px}
.tracking{font-size:28px;color:#86efac;margin-top:8px}
.small{color:#cbd5e1;font-size:13px}