/* Základní reset a nastavení box modelu pro všechny elementy */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #f7f7f7;
    line-height: 1.6;
    color: #333;
    padding: 20px;
}

h2 {
    text-align: center;
    margin-bottom: 20px;
}

form {
    max-width: 400px;
    margin: 20px auto;
    padding: 20px;
    background-color: white;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

div {
    margin-bottom: 10px;
}

label {
    display: block;
    margin-bottom: 5px;
    color: #666;
}

input[type='text'],
input[type='password'] {
    width: calc(100% - 20px);
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.1);
}

button {
    width: 100%;
    padding: 10px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    text-transform: uppercase;
    box-shadow: 0 5px 10px rgba(0, 0, 0, 0.1);
}

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

/* Přizpůsobení pro malé obrazovky */
@media (max-width: 400px) {
    body {
        padding: 10px;
    }

    form {
        width: 100%;
    }
}
#menu {
    background-color: #f2f2f2;
    padding: 10px;
    display: flex;
    gap: 10px; /* Rozestup mezi prvky */
}

.button {
    padding: 10px 15px;
    background-color: #007bff;
    color: white;
    text-transform: uppercase;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    transition: background-color 0.3s;
}

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