body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
}

.container {
    width: 90%;
    max-width: 800px;
    margin: 50px auto;
    background: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1,
h2 {
    text-align: center;
    color: #333;
}

.login-form,
#machinesList {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 20px;
}

input {
    padding: 10px;
    font-size: 16px;
    border: 1px solid #ccc;
    border-radius: 5px;
}

button {
    padding: 10px;
    font-size: 16px;
    border: none;
    border-radius: 5px;
    background-color: #007bff;
    color: #fff;
    cursor: pointer;
}

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

.machine-card {
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    margin-bottom: 10px;
    background: #f9f9f9;
}

.hidden {
    display: none;
}

.machine-card.red {
    border-color: red;
    background-color: #ffe5e5;
}

.logout {
    background-color: #dc3545;
    margin-bottom: 20px;
}

.logout:hover {
    background-color: #b02a37;
}