:root{--bg: #ffffff;--fg: #111111;--muted: #6b6b6b;--line: #e9e9e9;--soft: #f6f6f4;--ok: #1f7d4a;--err: #b43;--accent: #3b3bff;--accent-soft: #eef0ff}*{box-sizing:border-box;margin:0;padding:0}html,body{background:var(--bg);color:var(--fg);font-family:Inter,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;font-size:16px;line-height:1.6;min-height:100vh}button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;text-align:left}[hidden]{display:none!important}.container{max-width:520px;margin:0 auto;padding:60px 20px 80px;text-align:center}.brand-logo{width:56px;height:56px;border-radius:14px;margin:0 auto 16px;display:block}.product-title{font-size:28px;font-weight:700;letter-spacing:-.01em;margin-bottom:6px}.product-desc{color:var(--muted);font-size:15px;margin-bottom:16px}.product-price{font-size:36px;font-weight:700;margin-bottom:28px}.btn-primary{display:inline-block;padding:14px 28px;background:var(--fg);color:#fff;border-radius:999px;font-size:15px;font-weight:600;transition:opacity .15s,transform .1s}.btn-primary:hover{opacity:.92;transform:translateY(-1px)}.btn-primary:disabled{opacity:.5;cursor:not-allowed}.btn-secondary{margin-top:16px;padding:10px 20px;border:1px solid var(--line);background:#fff;border-radius:999px;font-size:14px;font-weight:500;display:block;margin-left:auto;margin-right:auto}.modal-backdrop{position:fixed;inset:0;background:#00000073;z-index:100;display:flex;align-items:flex-end;justify-content:center}.modal{background:#fff;width:100%;max-width:520px;border-top-left-radius:20px;border-top-right-radius:20px;padding:16px 20px 28px;max-height:92vh;overflow-y:auto;animation:slide-up .25s ease-out}@media(min-width:600px){.modal-backdrop{align-items:center}.modal{border-radius:20px;max-height:90vh}}@keyframes slide-up{0%{transform:translateY(20px);opacity:.8}to{transform:none;opacity:1}}.topbar{display:flex;align-items:center;gap:8px;margin-bottom:14px;position:relative}.back{width:36px;height:36px;display:flex;align-items:center;justify-content:center;font-size:22px;border-radius:50%}.back:hover{background:var(--soft)}.topbar h1{flex:1;text-align:center;padding-right:36px;font-size:20px;font-weight:700;letter-spacing:-.01em}.sub.centered{font-size:15px;color:var(--muted);text-align:center;margin-bottom:22px}.steps{display:flex;flex-direction:column;gap:8px;margin-bottom:22px}.pstep{display:flex;align-items:center;gap:14px;padding:14px 16px;border-radius:14px;border:1px solid var(--line);transition:background .15s,border-color .15s}.pstep .pdot{width:12px;height:12px;border-radius:50%;background:#d6d6d6;flex-shrink:0}.pstep .ptext{font-size:15px;font-weight:600;color:#aaa}.pstep.active{background:var(--accent-soft);border-color:#c4caff}.pstep.active .pdot{background:var(--accent)}.pstep.active .ptext{color:var(--fg)}.pstep.done{background:#f1f8f3;border-color:#c8e0d0}.pstep.done .pdot{background:var(--ok)}.pstep.done .ptext{color:var(--fg)}.net-label{font-size:15px;color:var(--fg);margin-bottom:12px}.net-list{display:flex;flex-direction:column;gap:10px}.net-card{width:100%;display:flex;align-items:center;gap:14px;padding:14px 16px;border:1px solid var(--line);border-radius:14px;transition:border-color .15s,transform .1s}.net-card:hover{border-color:var(--fg)}.net-card:active{transform:scale(.99)}.net-icon{width:46px;height:46px;border-radius:50%;display:flex;align-items:center;justify-content:center;flex-shrink:0}.net-meta{flex:1}.net-name{font-size:16px;font-weight:700}.net-sub{font-size:13px;color:var(--muted)}.net-arrow{color:var(--muted);font-size:22px;font-weight:300}.footer-note{font-size:13px;color:var(--muted);margin-top:22px}.wallets{display:grid;grid-template-columns:1fr 1fr;gap:12px}.wallet{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;padding:22px 12px;background:#fff;border:1px solid var(--line);border-radius:14px;min-height:130px;transition:border-color .15s,transform .1s}.wallet:hover{border-color:var(--fg)}.wallet:active{transform:scale(.98)}.wallet-icon{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;overflow:hidden}.wallet-name{font-size:14px;font-weight:600;text-align:center}.experimental-tag{display:inline-block;margin-left:6px;padding:1px 6px;background:#fff3d6;color:#8a6500;border-radius:4px;font-size:10px;font-weight:600;vertical-align:middle;text-transform:uppercase;letter-spacing:.04em}.prep-card{padding:32px 16px;text-align:center}.prep-spinner{width:80px;height:80px;margin:0 auto 18px;border:4px solid var(--line);border-top-color:var(--accent);border-radius:50%;animation:spin 1s linear infinite}.prep-text{font-size:17px;font-weight:600;margin-bottom:18px}.prep-dots{display:flex;align-items:center;justify-content:center;gap:4px;margin-bottom:28px}.prep-dots .dot{width:10px;height:10px;border-radius:50%;background:#d6d6d6}.prep-dots .dot.active{background:var(--accent)}.prep-dots .line{width:30px;height:2px;background:#d6d6d6}.prep-dots .line.active{background:var(--accent)}.prep-footer{font-size:12px;color:var(--muted);letter-spacing:.08em}.panel{padding:14px 16px;border-radius:12px;background:var(--soft);border:1px solid var(--line);font-size:14px;line-height:1.55}.panel.err{background:#fff5f3;border-color:#f0c8c0;color:var(--err)}.panel.ok{background:#f1f8f3;border-color:#c8e0d0;color:var(--ok)}.mono{font-family:SF Mono,Menlo,Consolas,monospace;font-size:12px;word-break:break-all}.spinner-inline{display:inline-block;width:14px;height:14px;border:2px solid var(--line);border-top-color:var(--fg);border-radius:50%;animation:spin 1s linear infinite;vertical-align:middle;margin-right:8px}@keyframes spin{to{transform:rotate(360deg)}}.card-out{background:var(--fg);color:#fff;border-radius:16px;padding:28px;margin-top:14px}.card-out .clabel{font-size:11px;letter-spacing:.12em;text-transform:uppercase;color:#fff9}.card-out .cref{font-size:24px;font-weight:700;letter-spacing:.04em;font-family:SF Mono,Menlo,Consolas,monospace;margin:8px 0 14px}.card-out .cmsg{font-size:14px;opacity:.85}