header {
    background-color: #007bff;
    color: white;
    padding: 15px 0;
    margin-bottom: 30px;
    box-shadow: 0 2px 10px rgba(0, 123, 255, 0.3);
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
}

header h1 {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding-left: 20px;
}

nav {
    padding-right: 20px;
}

nav ul {
    list-style-type: none;
    padding: 0;
    margin: 0;
    display: flex;
    justify-content: flex-end;
    flex-wrap: wrap;
}

nav ul li {
    margin: 0 10px;
    position: relative;
}

nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: 600;
    padding: 8px 15px;
    border-radius: 20px;
    transition: background-color 0.3s ease, color 0.3s ease;
    font-size: 1.1rem;
}

nav ul li a:hover {
    background-color: rgba(255, 255, 255, 0.2);
    color: #fff;
}

/* Hamburger menu styles */
.hamburger {
    display: none;
    cursor: pointer;
    background: none;
    border: none;
    color: white;
    font-size: 1.5rem;
    padding: 5px 10px;
}