.auth-card {
    max-width:420px;
    margin:40px auto;
    background:#fff;
    padding:28px;
    border-radius:18px;
    box-shadow:0 2px 8px rgba(15,23,42,0.12);
}
.auth-title {
    font-size:22px;
    font-weight:700;
    text-align:center;
    margin-bottom:20px;
}
.auth-input {
    width:100%;
    padding:12px;
    font-size:15px;
    border-radius:12px;
    border:1px solid #d1d5db;
    margin-bottom:14px;
}
.auth-btn {
    width:100%;
    padding:11px;
    font-size:15px;
    border-radius:999px;
    border:none;
    cursor:pointer;
    background:#2563eb;
    color:#fff;
    font-weight:600;
}
.auth-btn:hover {
    background:#1d4ed8;
}
.auth-error {
    background:#fee2e2;
    color:#b91c1c;
    padding:10px 12px;
    border-radius:10px;
    font-size:13px;
    margin-bottom:12px;
}
.auth-footer {
    text-align:center;
    font-size:14px;
    margin-top:16px;
}
.auth-footer a { color:#2563eb; }