header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0px 30px;
    background: var(--card-bg);
    position: sticky;
    top: 0;
    box-shadow: 0px 5px 10px rgba(0, 0, 0, 0.2);
}

nav {
    display: flex;
    align-items: center;
}

#menu-btn {
    display: none;
    font-size: 24px;
    background: none;
    border: none;
    cursor: pointer;
    /* color: var(--text-color); */
    background: linear-gradient(45deg, #ff416c, #007bff, #00ffcc);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

nav ul li {
    display: inline;
}

nav a {
    text-decoration: none;
    font-size: 20px;
    color: var(--text-color);
}

nav button {
    font-size: 20px;
    border: none;
    /* border-radius: 25px; */
}

.btn {
    display: inline-block;
    background: #007bff;
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    border: none;
    transition: all 0.3s ease-in-out;

    &:hover {
        background-color: #00c6ff;
        box-shadow: 0px 0px 10px #00c6ff, 0px 0px 20px #00c6ff;
    }
}

section h2 {
    font-size: 2.5rem;
    margin: 20px;
}