/* Basic reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: Arial, sans-serif;
}

/* Header */
header {
    background: #333;
    color: #fff;
    padding: 1rem;
    text-align: center;
    position: relative;
}

header h1 {
    margin: 0;
}

/* Hamburger Menu Styles */
.hamburger-menu {
    position: absolute;
    top: 1rem;
    left: 1rem;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    height: 24px;
    width: 30px;
}

.hamburger-menu .bar {
    width: 100%;
    height: 4px;
    background-color: white;
}

/* Navigation Menu Styles */
nav {
    position: fixed;
    top: 0;
    left: -250px;
    width: 250px;
    height: 100%;
    background-color: #444;
    padding-top: 3rem;
    transition: left 0.3s ease;
    z-index: 1;
}

nav ul {
    list-style-type: none;
}

nav ul li {
    margin: 1rem 0;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-size: 1.2rem;
    padding: 0.5rem;
}

/* Menu visibility when opened */
nav.open {
    left: 0;
}

/* Footer */
footer {
    background: #333;
    color: #fff;
    text-align: center;
    padding: 1rem;
}

/* Responsive */
@media (max-width: 768px) {
    nav ul {
        text-align: center;
    }
}