nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #333;
    padding: 10px 20px;
}

nav a {
    color: white;
    text-decoration: none;
    margin-right: 15px;
}

button {
    background: #007bff;
    color: white;
    border: none;
    padding: 5px 10px;
    cursor: pointer;
}

.user-menu {
    position: relative;
    display: inline-block;
}

.user-menu img {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
}

.dropdown {
    display: none;
    position: absolute;
    right: 0;
    background: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    border-radius: 5px;
    overflow: hidden;
    z-index: 1000;
}

.dropdown a {
    display: block;
    padding: 10px;
    color: black;
    text-decoration: none;
}

.dropdown a:hover {
    background: #f4f4f4;
}

.show {
    display: block;
}