*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--black: #0a0a0a;--charcoal: #1c1c1c;--dark-grey: #2e2e2e;--mid-grey: #6b6b6b;--light-grey: #b0b0b0;--border: #d4d4d4;--off-white: #f5f5f5;--white: #ffffff;--gold: #c9a84c;--gold-light: #e8c96a;--gold-dark: #9e7a2a;--font: Arial, "Helvetica Neue", Helvetica, sans-serif;--radius: 3px;--shadow: 0 1px 4px rgba(0,0,0,.12);--shadow-md: 0 2px 12px rgba(0,0,0,.16)}html,body{font-family:var(--font);font-size:14px;background:var(--white);color:var(--black);line-height:1.5;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:hover{text-decoration:underline}button{font-family:var(--font);cursor:pointer;border:none;border-radius:var(--radius)}input,select,textarea{font-family:var(--font);font-size:14px;border:1px solid var(--border);border-radius:var(--radius);padding:8px 10px;width:100%;background:var(--white);color:var(--black);outline:none;transition:border-color 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16px;cursor:pointer;transition:background .1s;background:var(--white)}.listing-card:hover{background:var(--off-white)}.listing-card.bid{border-left:1px solid var(--dark-grey);background:#fafafa}.listing-card.bid:hover{background:var(--off-white)}.listing-coin-name{font-size:13px;font-weight:700;color:var(--black);margin-bottom:3px}.listing-grade{font-size:11px;color:var(--mid-grey);margin-bottom:6px}.listing-grade .service{display:inline-block;background:var(--black);color:var(--gold);font-size:10px;font-weight:700;padding:1px 5px;border-radius:2px;margin-right:4px;letter-spacing:.5px}.listing-price{font-size:18px;font-weight:700;color:var(--black)}.listing-shipping{font-size:11px;color:var(--mid-grey);margin-top:3px}.filters-bar{display:flex;gap:10px;align-items:center;padding:14px 0;flex-wrap:wrap}.filters-bar select,.filters-bar 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var(--border);border-radius:var(--radius)}.coin-detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px 24px}.coin-detail-row{display:flex;justify-content:space-between;padding:6px 0;border-bottom:1px solid var(--off-white);font-size:13px}.coin-detail-row .label{color:var(--mid-grey)}.coin-detail-row .value{font-weight:600;color:var(--black)}.admin-table{width:100%;border-collapse:collapse;font-size:13px}.admin-table th{text-align:left;padding:8px 12px;background:var(--off-white);border-bottom:2px solid var(--border);font-size:11px;font-weight:700;letter-spacing:.8px;text-transform:uppercase;color:var(--mid-grey)}.admin-table td{padding:10px 12px;border-bottom:1px solid var(--border);vertical-align:middle}.admin-table tr:hover td{background:var(--off-white)}.badge{display:inline-block;padding:2px 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0;color:var(--light-grey);font-size:12px}.form-divider:before,.form-divider:after{content:"";flex:1;height:1px;background:var(--border)}.empty-state{text-align:center;padding:60px 20px;color:var(--mid-grey)}.empty-state h3{font-size:16px;margin-bottom:6px;color:var(--black)}.empty-state p{font-size:13px}.site-footer{background:var(--black);border-top:1px solid var(--dark-grey);padding:24px 0;margin-top:60px;text-align:center;font-size:12px;color:var(--mid-grey)}.site-footer a{color:var(--gold)}.listing-detail-layout{grid-template-columns:1fr 340px}@media (max-width: 768px){.site-header .container{height:auto;padding:10px 12px;flex-wrap:wrap;gap:8px}.site-nav{gap:12px;flex-wrap:wrap;font-size:12px}.site-logo .name{font-size:17px}.container{padding:0 12px}.market-grid{grid-template-columns:1fr}.market-col-header.bid{border-left:none;border-top:2px solid var(--gold-dark)}.listing-detail-layout{grid-template-columns:1fr!important}.coin-detail-grid{grid-template-columns:1fr}.auth-card{max-width:100%;margin:20px auto}.page-title{font-size:18px}.filters-bar{gap:8px}.filters-bar select,.filters-bar input{min-width:120px}}@media (max-width: 480px){.site-nav{gap:8px}.btn-sm{padding:4px 8px;font-size:11px}.listing-price{font-size:15px}}