:root{--bg:#0b0f13;--panel:#0f1418;--muted:#98a0a8;--accent:#f0b33a;--glass:rgba(255,255,255,0.03)}
*{box-sizing:border-box;font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,'Helvetica Neue',Arial}
body.dark{background:linear-gradient(180deg,#050608, #0b0f13);color:#e6eef6;margin:0}
.container{max-width:1100px;margin:0 auto;padding:24px}
.site-header{border-bottom:1px solid rgba(255,255,255,0.03)}
.site-header .container{display:flex;align-items:center;justify-content:space-between}
.site-header h1{margin:0;font-size:20px;color:var(--accent)}
.site-header nav a{color:var(--muted);margin-left:12px;text-decoration:none}
.site-header h1 a{color:var(--accent);text-decoration:none}
.hero{padding:48px 0}
.hero-grid{display:grid;grid-template-columns:420px 1fr;gap:28px;align-items:center}
.gold-card{width:360px;height:210px;border-radius:16px;background:linear-gradient(135deg,#b58522,#ffd66b);padding:20px;color:#111;position:relative;box-shadow:0 8px 30px rgba(0,0,0,.6)}
.gold-card .chip{width:46px;height:30px;background:#222;position:absolute;top:18px;left:20px;border-radius:4px}
.gold-card .brand{text-transform:uppercase;position:absolute;right:20px;top:20px;font-weight:700}
.gold-card .number{position:absolute;left:20px;bottom:54px;font-size:20px;letter-spacing:2px}
.gold-card .name{position:absolute;left:20px;bottom:20px;font-size:14px}
.hero-copy h2{margin:0 0 12px 0}
.btn{background:var(--accent);color:#071018;padding:10px 16px;border-radius:8px;text-decoration:none;border:none;cursor:pointer}
.btn.ghost{background:transparent;border:1px solid rgba(255,255,255,0.06);color:var(--accent)}
.site-footer{padding:24px;text-align:center;color:var(--muted)}
.auth{max-width:420px;margin:72px auto;padding:24px;background:var(--panel);border-radius:12px}
.auth h2{margin-top:0}
.auth label{display:block;margin-bottom:10px}
.auth input{width:100%;padding:10px;border-radius:8px;border:1px solid rgba(255,255,255,0.03);background:transparent;color:inherit}
.error{background:#4b1f1f;padding:8px;border-radius:6px;color:#ffd9d9;margin-bottom:12px}
.dashboard .balance{margin:12px 0;padding:12px;background:var(--glass);border-radius:8px}
.cards-grid{display:flex;gap:12px;flex-wrap:wrap}
.card-item{background:linear-gradient(180deg,rgba(255,255,255,0.02),transparent);padding:12px;border-radius:10px;min-width:200px}
.card-number{font-size:18px;margin-top:8px;font-weight:600}
.card-item .card-head{font-weight:700}
.small{padding:6px 8px;margin-top:8px;border-radius:6px;border:none;cursor:pointer}
.small.danger{background:#7b1f1f;color:#fff}
.funds{margin-top:24px;padding:12px;background:var(--panel);border-radius:10px}
.note{color:var(--muted);margin-top:8px}
@media(max-width:880px){.hero-grid{grid-template-columns:1fr}.gold-card{margin:0 auto}}