body{margin:0;font-family:Inter,Arial,sans-serif;background:#f6f8fb;color:#102033}.site-header{display:flex;justify-content:space-between;align-items:center;padding:18px 28px;background:#fff;border-bottom:1px solid #dde5ef}.brand{font-weight:800;color:#0f4b6e;text-decoration:none}nav a{margin-left:18px;color:#0f4b6e;text-decoration:none}.wrap{max-width:980px;margin:32px auto;padding:0 20px}.card{background:#fff;border:1px solid #dde5ef;border-radius:16px;padding:24px;margin-bottom:18px;box-shadow:0 10px 28px rgba(16,32,51,.06)}label{display:block;font-weight:700;margin:12px 0 6px}input,select,button{font:inherit}input,select{width:100%;box-sizing:border-box;border:1px solid #c8d3df;border-radius:10px;padding:11px 12px;background:#fff}.row{display:grid;grid-template-columns:1fr 1fr;gap:14px}.btn{border:0;border-radius:999px;background:#0f6b8f;color:#fff;padding:11px 18px;font-weight:800;cursor:pointer}.btn.secondary{background:#eef4f8;color:#0f4b6e}.muted{color:#64748b}.error{color:#a21b2b}.ok{color:#0f6848}.invoice{display:flex;justify-content:space-between;gap:12px;align-items:center;border-top:1px solid #eef2f6;padding:14px 0}.site-footer{text-align:center;color:#64748b;padding:28px}.hidden{display:none}@media(max-width:700px){.row{grid-template-columns:1fr}.invoice{display:block}.site-header{display:block}nav a{display:inline-block;margin:12px 12px 0 0}}