body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #eef7ff;
    
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: #0066cc;
    color: white;
    text-align: center;
    padding: 20px;
}

header h1 {
    margin: 0 0 15px 0;
}

nav ul {
    padding: 0;
    margin: 0;
    list-style-type: none;
}

nav ul li {
    display: inline;
    margin: 0 10px;
}

nav a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    font-size: 18px;
}

nav a:hover {
    text-decoration: underline;
}

nav a.aktivni {
    color: #ffcc00;
}

main {
    background-color: white;
    width: 80%;
    margin: 30px auto;
    padding: 20px;
    border: 2px solid #0066cc;
    flex: 1; 
}

footer {
    background-color: #333;
    color: white;
    text-align: center;
    padding: 15px;
    margin-top: auto;
}

h2, h3 {
    color: #0066cc;
    border-bottom: 1px solid #ccc;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

table, th, td {
    border: 1px solid black;
}

th, td {
    padding: 8px;
    text-align: left;
}

th {
    background-color: #0066cc;
    color: white;
}

label {
    display: block;
    margin-top: 10px;
    font-weight: bold;
}

input {
    width: 100%;
    padding: 8px;
    margin-top: 5px;
    box-sizing: border-box;
    border: 1px solid #ccc;
}

button {
    background-color: #0066cc;
    color: white;
    border: none;
    padding: 10px 20px;
    margin-top: 20px;
    cursor: pointer;
    font-size: 16px;
    width: 100%;
}

button:hover {
    background-color: #004c99;
}

@media (max-width: 600px) {
    main {
        width: 95%;
    }
    
    nav ul li {
        display: block;
        margin-bottom: 10px;
    }
}