:root{--bg:#fff;--fg:#16181d;--muted:#6b7280;--border:#e5e7eb;--accent:#1a7f4b;--accent-fg:#fff;--danger:#b42318;--danger-bg:#fef3f2;--warn-bg:#fffaeb;--warn-fg:#93370d;--radius:8px}@media (prefers-color-scheme:dark){:root{--bg:#14161a;--fg:#e8eaed;--muted:#9aa1ac;--border:#2b2f36;--danger-bg:#2a1614;--warn-bg:#2a2314;--warn-fg:#f0c36d}}*{box-sizing:border-box}html,body{background:var(--bg);color:var(--fg);margin:0;padding:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;font-size:15px;line-height:1.5}.wrap{max-width:640px;margin:0 auto;padding:24px 20px 40px}h1{margin:0 0 4px;font-size:20px}h2{margin:28px 0 10px;font-size:15px}p.sub{color:var(--muted);margin:0 0 24px}label{margin-bottom:6px;font-size:13px;font-weight:600;display:block}.hint{color:var(--muted);margin:4px 0 0;font-size:12px;font-weight:400}input[type=text],input[type=password],input[type=number],select{border:1px solid var(--border);border-radius:var(--radius);background:var(--bg);width:100%;color:var(--fg);padding:9px 11px;font-family:inherit;font-size:14px}input:focus,select:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}.field{margin-bottom:16px}.row{gap:12px;display:flex}.row>*{flex:1}.check{align-items:flex-start;gap:9px;margin-bottom:16px;display:flex}.check input{margin-top:3px}.check label{margin:0;font-weight:500}button{background:var(--accent);color:var(--accent-fg);border-radius:var(--radius);cursor:pointer;border:0;padding:10px 18px;font-family:inherit;font-size:14px;font-weight:600}button:disabled{opacity:.55;cursor:default}.note,.error,.warn{border-radius:var(--radius);border:1px solid var(--border);margin-bottom:16px;padding:11px 13px;font-size:13px}.error{background:var(--danger-bg);border-color:color-mix(in srgb, var(--danger) 35%, transparent);color:var(--danger)}.warn{background:var(--warn-bg);border-color:color-mix(in srgb, var(--warn-fg) 35%, transparent);color:var(--warn-fg)}code{background:color-mix(in srgb, var(--fg) 8%, transparent);word-break:break-all;border-radius:4px;padding:2px 5px;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px}:is(body:has(.checkout),body:has(.checkout-shell)){background:0 0}.checkout{flex-direction:column;width:100%;min-height:520px;display:flex}.checkout iframe{background:0 0;border:0;width:100%;min-height:520px;display:block}@media (max-width:640px){.checkout,.checkout iframe{min-height:600px}}.center{text-align:center;min-height:320px;color:var(--muted);flex-direction:column;justify-content:center;align-items:center;gap:12px;padding:48px 20px;display:flex}.spinner{border:2.5px solid var(--border);border-top-color:var(--accent);border-radius:50%;width:26px;height:26px;animation:.7s linear infinite spin}@keyframes spin{to{transform:rotate(360deg)}}.badge{background:var(--warn-bg);color:var(--warn-fg);border-radius:999px;margin-bottom:10px;padding:3px 10px;font-size:12px;font-weight:600;display:inline-block}