html, *{
    font-family: Arial, sans-serif;
}
body {
    background-color: #f0f0f0;
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
}

.login-container {
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
    text-align: center;
}

h1 {
    font-size: 24px;
    margin-bottom: 20px;
}

input {
    width: 100%;
    padding: 10px;
    margin: 10px 0;
    border: 1px solid #ccc;
    border-radius: 3px;
    box-sizing: border-box;
}

button {
    width: 100%;
    padding: 10px;
    background-color: #007BFF;
    color: #fff;
    border: none;
    border-radius: 3px;
    cursor: pointer;
    margin-top:10px;
}

button:hover {
    background-color: #0056b3;
}

button.bg-danger{ background-color: #a70b0b; }
button.bg-danger:hover{ background-color: #7e0707; }

/* Define una animación de sacudida */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
    20%, 40%, 60%, 80% { transform: translateX(10px); }
}

.shake {
    animation: shake 0.5s;
}