body{margin:0;min-height:100vh;display:flex;align-items:center;justify-content:center;background:#f5f0eb;font-family:system-ui,'Segoe UI',sans-serif;color:#1a2340}
main{background:#fff;border-radius:16px;padding:32px;max-width:420px;margin:16px;box-shadow:0 8px 30px rgba(30,60,140,.12)}
h1{margin:0 0 8px;font-size:1.4rem}p{color:#6b7a99;line-height:1.5}a{color:#2d52a0}
.btns{display:flex;flex-direction:column;gap:10px;margin-top:18px}
.btn{display:block;text-align:center;padding:12px;border-radius:10px;background:#2d52a0;color:#fff;text-decoration:none;font-weight:700}
.err{background:#fdecec;color:#9b1c1c;border-radius:10px;padding:10px 12px;margin-top:12px}