body {
    font-family: Arial, sans-serif;
    background-color: #f4f7f4;
    color: #2f3e46;
    margin: 0;
    padding: 0;
    text-align: center;
}

header {
    background-color: #354f52;
    padding: 15px;
}

nav a {
    color: #ffffff;
    text-decoration: none;
    margin: 0 15px;
    font-weight: bold;
    font-size: 14px;
}

nav a:hover {
    color: #84a98c;
}

h1 {
    color: #2f3e46;
    margin-top: 40px;
    font-size: 28px;
}

p {
    color: #52796f;
    font-size: 16px;
}

.katalogo-txartela {
    background-color: #ffffff;
    border: 1px solid #d8e2dc;
    width: 320px;
    margin: 30px auto;
    padding: 20px;
    border-radius: 8px;
}

.katalogo-txartela img {
    width: 100%;
    height: auto;
    border-radius: 4px;
}

.botoia {
    display: inline-block;
    background-color: #52796f;
    color: white;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 4px;
    margin-top: 15px;
    font-weight: bold;
}

.botoia:hover {
    background-color: #354f52;
}

footer {
    margin-top: 50px;
    padding: 20px;
    background-color: #dad7cd;
    color: #354f52;
    font-size: 13px;
}