/* Global Styles */
body {
    font-family: 'Arial', sans-serif;
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    background-color: #f0f0f0;
    color: #333;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
}

header {
    background-color: #3498db;
    padding: 20px;
    text-align: center;
}

header .logo h1 {
    color: #fff;
    margin: 0;
}

nav ul {
    list-style: none;
    padding: 0;
}

nav ul li {
    display: inline;
    margin: 0 10px;
}

nav ul li a {
    color: #fff;
    text-decoration: none;
    font-size: 18px;
}

nav ul li a:hover {
    text-decoration: underline;
}

nav ul li button {
    background-color: #e67e22;
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    color: #fff;
    font-size: 16px;
}

nav ul li button:hover {
    background-color: #d35400;
}

main {
    padding: 20px;
    background-color: #fff;
    margin-top: 20px;
}

footer {
    background-color: #2c3e50;
    color: #fff;
    text-align: center;
    padding: 10px;
    position: fixed;
    bottom: 0;
    width: 100%;
}

h2 {
    font-size: 28px;
    color: #3498db;
}

h3 {
    font-size: 24px;
}

button {
    background-color: #3498db;
    border: none;
    color: white;
    padding: 10px;
    cursor: pointer;
}

button:hover {
    background-color: #2980b9;
}

/* Dark Mode */
body.dark-mode {
    background-color: #2c3e50;
    color: #ecf0f1;
}

body.dark-mode header {
    background-color: #2980b9;
}

body.dark-mode footer {
    background-color: #34495e;
}

body.dark-mode nav ul li a {
    color: #ecf0f1;
}

body.dark-mode nav ul li button {
    background-color: #e67e22;
}

body.dark-mode nav ul li button:hover {
    background-color: #d35400;
}