/* Reset some default styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    background-color: #f9f9f9;
    color: #333;
    padding-top: 60px; /* space for fixed header */
}

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: #1c1c1c;
    color: #fff;
    padding: 15px 0;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
    z-index: 1000;
}

header nav ul {
    list-style: none;
    display: flex;
    justify-content: center;
}

header nav ul li {
    margin: 0 15px;
}

header nav ul li a {
    color: #fff;
    text-decoration: none;
    font-weight: bold;
    transition: color 0.3s ease;
}

header nav ul li a:hover,
header nav ul li a.active {
    color: #ff9900;
}

/* Main content */
main {
    max-width: 960px;
    margin: 20px auto;
    padding: 20px;
    background-color: #fff;
    border-radius: 6px;
    box-shadow: 0 2px 5px rgba(0,0,0,0.1);
}

/* Footer */
footer {
    text-align: center;
    padding: 20px;
    background-color: #1c1c1c;
    color: #fff;
    margin-top: 40px;
    font-size: 0.9rem;
}

/* Headings */
h1 {
    color: blue;
}