:root{--bg:#f4f9f9;--ink:#1c2b2b;--muted:#5c7070;--teal:#1f8080;--teal-dark:#166363;--green:#3fa65a;--border:#d7e6e6;--card:#fff;--red:#dc2626;--red-bg:#fef2f2;--red-border:#fbd0d0}*{box-sizing:border-box}body{margin:0;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Arial,sans-serif;background:var(--bg);color:var(--ink);min-height:100vh}.wrap{max-width:480px;margin:60px auto;padding:0 20px}h1{font-size:1.6rem;margin:0 0 6px}.sub{color:var(--muted);font-size:.95rem;line-height:1.5;margin:0 0 24px}.field{margin-bottom:16px}.field label{display:block;font-size:.85rem;font-weight:600;margin-bottom:6px;color:var(--ink)}.field input{width:100%;padding:10px 12px;border:1px solid var(--border);border-radius:8px;font-size:.95rem;background:#fff}.field input:focus{outline:none;border-color:var(--teal)}.btn{display:inline-block;padding:11px 22px;border-radius:10px;font-weight:700;font-size:.95rem;text-decoration:none;text-align:center;border:none;cursor:pointer}.btn-primary{background:var(--green);color:#fff;width:100%}.btn-primary:hover{opacity:.92}.btn-primary:disabled{opacity:.6;cursor:not-allowed}.msg{margin-top:14px;padding:12px 14px;border-radius:8px;font-size:.88rem;line-height:1.5}.msg.err{background:var(--red-bg);border:1px solid var(--red-border);color:var(--red)}.msg.ok{background:#eefdf3;border:1px solid #bdf0cf;color:#2f8746}.link{color:var(--teal-dark);font-weight:600;text-decoration:none}.link:hover{text-decoration:underline}.price-card{background:var(--card);border:1px solid var(--border);border-radius:16px;padding:24px;text-align:center;margin-top:20px}.price{font-size:2.2rem;font-weight:800;color:var(--teal-dark)}.price span{font-size:1rem;font-weight:500;color:var(--muted)}