body { font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif; background:#f7fafc; color:#111827; }
.wrap { max-width: 560px; margin: 40px auto; background:#fff; padding:24px; border-radius:12px; box-shadow:0 8px 30px rgba(0,0,0,.05); }
h1 { margin-top:0; }
.hidden { display:none; }
input { width:100%; padding:10px 12px; margin-bottom:10px; border:1px solid #e5e7eb; border-radius:8px; }
button { padding:10px 14px; border:0; border-radius:8px; background:#4f46e5; color:#fff; cursor:pointer; }
button:hover { background:#4338ca; }
.plans { display:flex; gap:10px; flex-wrap:wrap; }
.small { color:#6b7280; font-size:.9rem; }
#msg { margin-top:10px; color:#111827; }