:root{color-scheme:dark;--bg:#09090d;--bg-elevated:#111118;--fg:#f2f2f5;--muted:#9b9ba8;--accent:#4f8cff;--accent-hover:#6b9fff;--accent-muted:rgba(79,140,255,0.15);--border:#23232e;--success:#3dd68c;--danger:#ff6b6b;--radius:14px;--shadow:0 12px 40px rgba(0,0,0,0.45)}*{box-sizing:border-box}body,html{margin:0;padding:0;background:var(--bg);color:var(--fg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,sans-serif;-webkit-font-smoothing:antialiased}.page{min-height:100vh;display:flex;align-items:flex-start;justify-content:center;padding:20px 16px 28px}.page.return{align-items:center}.shell{width:100%;max-width:440px;background:linear-gradient(180deg,#12121a 0,var(--bg-elevated) 100%);border:1px solid var(--border);border-radius:calc(var(--radius) + 2px);box-shadow:var(--shadow);overflow:hidden}.header{display:flex;gap:14px;align-items:center;padding:22px 22px 8px}.logo-mark{width:42px;height:42px;border-radius:10px;object-fit:contain;flex-shrink:0;display:block}.eyebrow{margin:0;font-size:11px;letter-spacing:.08em;text-transform:uppercase;color:var(--muted)}.title{margin:2px 0 0;font-size:20px;font-weight:650;letter-spacing:-.02em}.panel{padding:8px 22px 20px}.panel.center{text-align:center;padding-bottom:24px}.lead{margin:0 0 6px;font-size:17px;font-weight:600}.muted{margin:0 0 18px;font-size:14px;line-height:1.5}.field,.muted{color:var(--muted)}.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px;font-size:13px}.field input,.field select,.field textarea{width:100%;border:1px solid var(--border);background:#0c0c12;color:var(--fg);border-radius:10px;padding:12px 14px;font-size:15px;font-family:inherit;outline:none;transition:border-color .15s ease,box-shadow .15s ease;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-muted)}.grid-2{display:grid;grid-template-columns:110px 1fr;grid-gap:12px;gap:12px}.hint{margin:6px 0 0;font-size:12px;color:var(--muted);line-height:1.4}.top-error{border:1px solid rgba(255,107,107,.3);background:rgba(255,107,107,.08);border-radius:8px;padding:8px 10px;margin-bottom:12px}.admin-shell{max-width:640px}.admin-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px}.section-title{margin:0 0 12px;font-size:1rem;font-weight:600}.vendor-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}.vendor-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 12px;border:1px solid var(--border);border-radius:10px;background:var(--panel)}.badge{margin-left:8px;font-size:11px;padding:2px 8px;border-radius:999px;text-transform:uppercase;letter-spacing:.04em}.badge.active{background:rgba(110,99,255,.2);color:#b8b0ff}.badge.disabled{background:rgba(255,107,107,.15);color:#ff9a9a}.btn.small{padding:8px 12px;font-size:13px;white-space:nowrap}.code-block{background:#0c0c14;border:1px solid var(--border);border-radius:10px;padding:12px;font-size:12px;overflow-x:auto;white-space:pre-wrap;word-break:break-all;margin-bottom:12px}.admin-note{font-size:12px;text-align:center;margin-top:8px}.amount-row{display:flex;align-items:stretch}.amount-prefix{display:flex;align-items:center;padding:0 12px;border:1px solid var(--border);border-right:none;border-radius:10px 0 0 10px;background:#0c0c12;color:var(--muted);font-size:16px}.amount-row input{border-radius:0 10px 10px 0;flex:1 1}.error{margin:-4px 0 12px;color:var(--danger);font-size:13px}.btn{width:100%;border:none;border-radius:10px;padding:13px 16px;font-size:15px;font-weight:600;cursor:pointer;transition:background .15s ease,transform .1s ease}.btn:active{transform:scale(.99)}.btn.primary{background:var(--accent);color:#fff;margin-bottom:10px}.btn.primary:hover{background:var(--accent-hover)}.btn.ghost{background:transparent;color:var(--muted);font-weight:500}.btn.ghost:hover{color:var(--fg)}.spinner{width:40px;height:40px;margin:12px auto 16px;border:3px solid var(--border);border-top-color:var(--accent);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(1turn)}}.panel.paying{padding-top:0}.amount-display{font-size:22px;font-weight:600;color:var(--fg);margin-bottom:12px}.iframe-wrap{border:1px solid var(--border);border-radius:12px;overflow:hidden;background:#000;min-height:420px}.pay-frame{width:100%;height:480px;border:0;display:block}.icon{width:52px;height:52px;margin:8px auto 14px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:700}.icon.success{background:rgba(61,214,140,.15);color:var(--success)}.icon.failure{background:rgba(255,107,107,.12);color:var(--danger)}.txn{margin:0 0 18px;font-size:14px;color:var(--muted)}.txn code{color:var(--fg);background:#0c0c12;padding:2px 8px;border-radius:6px;font-size:13px}.footer{padding:14px 22px 18px;border-top:1px solid var(--border);text-align:center;font-size:12px;color:var(--muted)}