body {
    background-color: #e0f7fa;
    font-family: "Trebuchet MS", sans-serif;
    color: #04464a;
}

h1, h2, h3 {
    color: #0277bd;
}

a {
    color: #01579b;
    text-decoration: none;
}

a:hover {
    color: #0288d1;
    text-decoration: underline;
}

nav {
    background-color: #b3e5fc;
    padding: 10px 15px;
}

nav a {
    margin-right: 15px;
    font-weight: bold;
}

footer {
    background-color: #b3e5fc;
    color: #01579b;
    text-align: center;
    padding: 15px;
}

.btn {
    background-color: #4fc3f7;
    border: none;
    color: #fff;
    padding: 10px 20px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 14px;
    margin: 4px 2px;
    cursor: pointer;
}

.btn:hover {
    background-color: #039be5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 15px;
}