body {
    font-family: 'Roboto', sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
    color: #333;
    display: flex;
    flex-direction: column;
}

header {
    background-color: #00b0a4;
    color: #ffffff;
    padding: 20px 0;
    text-align: center;
    font-size: 24px;
    font-weight: bold;
    font-family: 'Open Sans', sans-serif;
}

nav {
    display: flex;
    justify-content: center;
    background-color: #000000;
}

    nav a {
        color: #ffffff;
        padding: 14px 20px;
        text-decoration: none;
        text-align: center;
        font-family: 'Open Sans', sans-serif;
    }

        nav a:hover {
            background-color: #00b0a4;
            color: #ffffff;
        }

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
}

footer {
    background-color: #000000;
    color: #ffffff;
    text-align: center;
    padding: 10px 0;
    position: fixed;
    width: 100%;
    height: 50px;
    bottom: 0;
    font-family: 'Open Sans', sans-serif;
}

    footer p {
        margin: 5px 0;
    }

    footer a {
        color: #00b0a4;
        text-decoration: none;
    }

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

h1, h2, h3 {
    color: #00b0a4;
    font-family: 'Open Sans', sans-serif;
}

button {
    background-color: #00b0a4;
    color: #ffffff;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-size: 16px;
    border-radius: 5px;
    font-family: 'Roboto', sans-serif;
}

    button:hover {
        background-color: #008f8a;
    }

.card {
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    margin: 20px 0;
    padding: 20px;
    font-family: 'Roboto', sans-serif;
}

    .card h3 {
        margin-top: 0;
    }

    .card p {
        color: #666;
    }

.grid {
    display: flex;
    flex-wrap: wrap;
    gap: 20px;
}

.grid-item {
    flex: 1;
    min-width: 300px;
}

img.responsive {
    max-width: 5%;
    height: auto;
    display: block;
    margin: 0 auto;
}