:root{--bg: #f5f5f3;--card: #ffffff;--card-alt: #f9fafb;--text: #111827;--muted: #6b7280;--gold: #F0B90B;--gold-light: #FEF3C7;--green: #16a34a;--red: #dc2626;--border: #e5e7eb}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;background:linear-gradient(180deg,#fdfaf3,#f2f2f0 60%,#eceae6);color:var(--text);min-height:100vh}.checkout{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}.checkout-card{background:var(--card);border:1px solid var(--border);border-radius:20px;padding:36px 28px;width:100%;max-width:400px;text-align:center;box-shadow:0 12px 40px #1118271a}.card-topbar{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}.back-btn{width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:var(--card-alt);color:var(--text);display:flex;align-items:center;justify-content:center;cursor:pointer}.bsc-chip{display:inline-flex;align-items:center;gap:6px;background:linear-gradient(135deg,#fef3c7,#fde68a);color:#92620a;font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px}.online-dot{width:8px;height:8px;border-radius:50%;background:#22c55e;animation:pulse-dot 1.6s infinite}@keyframes pulse-dot{0%{box-shadow:0 0 #22c55e99}70%{box-shadow:0 0 0 6px #22c55e00}to{box-shadow:0 0 #22c55e00}}.hero-icon{display:flex;align-items:center;justify-content:center;margin:4px auto 24px}.hero-icon svg{width:68px;height:68px;filter:drop-shadow(0 10px 22px rgba(240,185,11,.35))}.checkout-title{font-size:18px;margin:0 0 6px;font-weight:700;letter-spacing:-.2px}.checkout-sub{color:var(--muted);font-size:14px;margin:0 0 28px;line-height:1.6}.status-box{font-size:13px;padding:10px 12px;border-radius:8px;margin-bottom:16px;text-align:left}.status-box.hidden{display:none}.status-box.info{background:#eff6ff;color:#1d4ed8}.status-box.success{background:#ecfdf5;color:#047857}.status-box.error{background:#fef2f2;color:#b91c1c}.feature-list{background:var(--card-alt);border:1px solid var(--border);border-radius:14px;padding:4px 16px;margin-bottom:24px;text-align:left}.feature-row{display:flex;align-items:center;gap:14px;padding:16px 0;border-bottom:1px solid var(--border)}.feature-row:last-child{border-bottom:none}.feature-icon{width:36px;height:36px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.feature-icon.amber{background:linear-gradient(135deg,#fef3c7,#fcd34d);color:#92400e}.feature-icon.green{background:transparent}.feature-icon.dark{background:linear-gradient(135deg,#374151,#111827);color:#fff}.feature-text{flex:1;min-width:0}.feature-text strong{display:block;font-size:14px;font-weight:700}.feature-text p{margin:3px 0 0;font-size:12.5px;color:var(--muted)}.network-label{text-align:left;font-size:12px;font-weight:700;color:var(--muted);margin-bottom:10px;text-transform:uppercase;letter-spacing:.4px}.network-select{display:flex;align-items:center;gap:10px;border:1px solid var(--border);border-radius:12px;padding:14px 16px;margin-bottom:24px}.network-select-name{font-size:13.5px;font-weight:600;flex:1;text-align:left}.network-badge{background:linear-gradient(135deg,#dcfce7,#bbf7d0);color:#15803d;font-size:11px;font-weight:700;padding:3px 9px;border-radius:999px}.network-chevron{color:var(--muted);display:flex}.btn{display:flex;align-items:center;justify-content:center;gap:6px;width:100%;padding:11px;border-radius:10px;border:none;font-size:14px;font-weight:700;cursor:pointer;margin-bottom:8px}.btn.primary{background:linear-gradient(135deg,#fcd535,#f0b90b 55%,#de9b0a);color:#1a1300;box-shadow:0 6px 18px #f0b90b66}.btn.secondary{background:linear-gradient(135deg,#fef2f2,#fee2e2);border:1px solid #fecaca;color:#b91c1c}.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}.footer-note{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:4px;font-size:11.5px;color:var(--muted);margin-top:16px}.footer-note .dot{color:var(--border);margin:0 1px}.wallet-card{background:linear-gradient(135deg,#fafafa,#f3f4f6);border:1px solid var(--border);border-radius:14px;padding:14px 16px;margin-bottom:16px;text-align:left}.wallet-check{display:inline-flex;align-items:center;gap:6px;color:var(--green);font-weight:700;font-size:13.5px}.wallet-addr-row{display:flex;align-items:center;gap:8px;margin-top:10px}.wallet-addr{font-size:13px;color:var(--text);font-weight:600}.copy-icon{color:var(--muted);cursor:pointer;display:flex}.avatar-blockie{width:28px;height:28px;border-radius:50%;margin-left:auto;overflow:hidden;display:flex;flex-shrink:0;border:1px solid var(--border)}.avatar-blockie svg{display:block;width:100%;height:100%}.balance-block{text-align:left;margin-bottom:16px}.balance-label{font-size:12px;color:var(--muted)}.balance-row{display:flex;align-items:center;gap:8px;margin-top:4px}.balance-row strong{font-size:24px;font-weight:700}.warning-banner{display:flex;align-items:flex-start;gap:8px;background:#fef2f2;border:1px solid #fecaca;color:#b91c1c;font-size:12.5px;padding:10px 12px;border-radius:10px;margin-top:10px;text-align:left}.details-card{background:linear-gradient(135deg,#fafafa,#f3f4f6);border:1px solid var(--border);border-radius:14px;padding:14px 16px;margin-bottom:18px;text-align:left}.details-title{font-size:13px;font-weight:700;margin-bottom:8px}.details-row{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px solid var(--border)}.details-row:last-child{border-bottom:none}.details-icon{color:var(--muted);display:flex;flex-shrink:0}.details-label{font-size:13px;color:var(--muted);flex:1}.details-value{font-size:13px;font-weight:700;display:flex;align-items:center;gap:2px}@media (max-width: 420px){.checkout{padding:12px}.checkout-card{padding:22px 18px;border-radius:16px}}.balance-error-text{font-size:14px;font-weight:500;color:var(--muted)}.success-icon-wrap{display:flex;justify-content:center;margin:4px auto 16px}.success-icon{width:60px;height:60px;border-radius:50%;background:linear-gradient(135deg,#dcfce7,#bbf7d0);color:#16a34a;display:flex;align-items:center;justify-content:center}.tx-row{border-bottom:none!important;padding-bottom:4px!important}.tx-hash-box{font-family:SF Mono,Menlo,monospace;font-size:11.5px;color:var(--text);background:#fff;border:1px solid var(--border);border-radius:8px;padding:10px 12px;word-break:break-all;overflow-wrap:break-word;margin:0 0 4px;text-align:left}.explorer-link{display:flex;align-items:center;justify-content:center;gap:6px;font-size:13px;font-weight:600;color:#b45309;text-decoration:none;margin:4px 0 14px}