:root{
  --sat-bg:#f5f7fb;--sat-card:#fff;--sat-text:#132238;--sat-muted:#60708a;
  --sat-primary:#0f5ef7;--sat-primary-dark:#0a45b3;--sat-accent:#f59e0b;
  --sat-border:#dde5f0;--sat-danger:#dc2626;--sat-success:#16a34a;
  --sat-radius:18px;--sat-shadow:0 12px 30px rgba(17,24,39,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;background:var(--sat-bg);color:var(--sat-text)}
a{color:var(--sat-primary);text-decoration:none}
img{max-width:100%;height:auto}
.sat-container{width:min(1200px,calc(100% - 32px));margin-inline:auto}
.sat-topbar{background:#091120;color:#d8e2f2;font-size:13px}
.sat-topbar-inner,.sat-header-main{display:flex;align-items:center;justify-content:space-between;gap:16px}
.sat-topbar-inner{padding:10px 0}
.sat-topbar-links{display:flex;gap:16px}
.sat-topbar a{color:#fff}
.sat-site-header{background:#fff;border-bottom:1px solid var(--sat-border);position:sticky;top:0;z-index:50}
.sat-header-main{padding:18px 0}
.sat-logo-link{font-weight:800;font-size:22px;color:var(--sat-text)}
.sat-nav,.sat-main-nav ul{display:flex;gap:20px;list-style:none;padding:0;margin:0;align-items:center}
.sat-main-nav a{color:var(--sat-text);font-weight:600}
.sat-site-main{min-height:60vh}
.sat-hero{padding:56px 0 30px;background:linear-gradient(135deg,#081222,#102b55 50%,#0f5ef7);color:#fff}
.sat-hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:28px;align-items:center}
.sat-eyebrow{display:inline-block;background:rgba(255,255,255,.14);padding:8px 12px;border-radius:999px;font-size:13px;font-weight:700}
.sat-hero h1{font-size:clamp(34px,5vw,58px);line-height:1.05;margin:16px 0}
.sat-hero p{font-size:18px;max-width:650px;color:#d9e7ff}
.sat-hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:24px}
.sat-btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 18px;border-radius:14px;font-weight:700;border:1px solid transparent;cursor:pointer}
.sat-btn-primary{background:#fff;color:#0f172a}
.sat-btn-primary:hover{background:#eaf2ff}
.sat-btn-secondary{background:transparent;color:#fff;border-color:rgba(255,255,255,.3)}
.sat-hero-panel,.sat-card{background:var(--sat-card);border:1px solid var(--sat-border);border-radius:var(--sat-radius);box-shadow:var(--sat-shadow)}
.sat-hero-panel{padding:22px}
.sat-content{padding:32px 0}
.sat-card{padding:24px}
.sat-page-title,.sat-archive-header h1{margin:0 0 12px}
.sat-home-sections > *{margin-bottom:28px}
.sat-site-footer{background:#091120;color:#d9e2ef;margin-top:48px}
.sat-footer-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:24px;padding:42px 0}
.sat-site-footer a{color:#fff}
.sat-footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:14px 0;color:#8fa6c7}
.sat-auction-single{display:block}
.sat-auction-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:24px}
.sat-gallery-main img{width:100%;height:450px;object-fit:cover;border-radius:20px}
.sat-gallery-thumbs{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:12px}
.sat-gallery-thumbs img{height:96px;object-fit:cover;border-radius:14px}
.sat-summary-card,.sat-tab-card{background:#fff;border:1px solid var(--sat-border);border-radius:20px;padding:22px;box-shadow:var(--sat-shadow)}
.sat-meta-list{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 14px;margin:18px 0}
.sat-meta-item{background:#f8fbff;border:1px solid var(--sat-border);padding:12px 14px;border-radius:14px}
.sat-stat{display:flex;justify-content:space-between;align-items:center;padding:12px 0;border-bottom:1px solid var(--sat-border)}
.sat-stat strong{font-size:22px}
.sat-tabs-grid{display:grid;grid-template-columns:2fr 1fr;gap:24px;margin-top:24px}
.sat-archive-header{margin-bottom:20px}
@media (max-width: 900px){
  .sat-hero-grid,.sat-auction-layout,.sat-tabs-grid,.sat-footer-grid{grid-template-columns:1fr}
  .sat-main-nav ul,.sat-nav{flex-wrap:wrap}
  .sat-gallery-main img{height:280px}
}
@media (max-width: 640px){
  .sat-container{width:min(100% - 20px,1200px)}
  .sat-header-main{padding:14px 0}
  .sat-topbar-inner{flex-direction:column;align-items:flex-start}
  .sat-hero{padding-top:32px}
}