body {
    font-family: 'Arial', 'Helvetica Neue', Helvetica, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #ecf0f1;
    color: #333;
}

.container {
    width: 80%;
    margin: auto;
    overflow: hidden;
    padding: 0 20px;
}

header {
    background: #2c3e50;
    color: #fff;
    padding-top: 30px;
    min-height: 70px;
    border-bottom: #3498db 3px solid;
}

header a {
    color: #fff;
    text-decoration: none;
    text-transform: uppercase;
    font-size: 16px;
}

header ul {
    padding: 0;
    margin: 0;
    list-style: none;
    float: right;
}

header li {
    display: inline;
    padding: 0 20px 0 20px;
}

header #branding {
    float: left;
}

header #branding h1 {
    margin: 0;
    font-size: 24px;
}

header nav {
    margin-top: 10px;
}

header .current a, header a:hover {
    color: #3498db;
    font-weight: bold;
}

footer {
    padding: 20px;
    margin-top: 20px;
    color: #fff;
    background-color: #2c3e50;
    text-align: center;
}

h1, h2, h3 {
    color: #2c3e50;
}

.main-content {
    padding: 20px;
    background: #fff;
    margin-top: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

.button {
    display: inline-block;
    background: #3498db;
    color: #fff;
    padding: 10px 20px;
    text-decoration: none;
    border-radius: 5px;
    transition: background-color 0.3s ease;
}

.button:hover {
    background: #2980b9;
}