.syn-auth-form{max-width:420px;margin:1rem auto;padding:1rem;border:1px solid #e5e7eb;border-radius:12px;background:#fff;box-shadow:0 2px 10px rgba(0,0,0,.04)}
.syn-auth-form h3{margin-top:0;margin-bottom:.75rem}
.syn-auth-form p{margin:.5rem 0}
.syn-auth-form label{display:block;font-weight:600;margin-bottom:.25rem}
.syn-auth-form input[type=text],.syn-auth-form input[type=email],.syn-auth-form input[type=password]{width:100%;padding:.6rem;border-radius:8px;border:1px solid #d1d5db}
.syn-auth-form button{padding:.6rem 1rem;border:none;border-radius:8px;background:#1e40af;color:#fff;font-weight:600;cursor:pointer}
.syn-auth-form button:hover{background:#1d4ed8}
.syn-auth-muted{color:#6b7280;font-size:.9rem}
.syn-auth-notice{max-width:420px;margin:1rem auto;padding:.75rem 1rem;border-radius:10px}
.syn-auth-success{background:#ecfdf5;border:1px solid #10b981}
.syn-auth-info{background:#eff6ff;border:1px solid #60a5fa}
.syn-auth-error{background:#fef2f2;border:1px solid #f87171}
.syn-auth-terms{font-size:.9rem}