.burger {
    display: none;
    cursor: pointer;
}

.burger div {
    width: 25px;
    height: 3px;
    background-color: #000;
    margin: 5px;
    transition: all 0.3s ease;
}

@media screen and (max-width: 768px) {
    .burger {
        display: block;
        z-index: 1001;
    }

    .nav-links {
        position: fixed;
        right: -100%;
        top: 0;
        height: 100vh;
        background: #fff;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        width: 80%;
        transition: 0.5s ease-in-out;
        box-shadow: -5px 0 10px rgba(0, 0, 0, 0.1);
    }

    .nav-links li {
        margin: 1.5rem 0;
        opacity: 0;
    }

    .nav-links a {
        font-size: 1.5rem;
        font-weight: 700;
    }

    .nav-links a:hover,
    .nav-links a:active {
        color: var(--primary-color);
        transform: scale(1.05);
        transition: all 0.3s ease;
    }

    .nav-active {
        right: 0;
    }

    .nav-active li {
        opacity: 1;
        transition: opacity 0.5s ease 0.3s;
    }

    .toggle .line1 {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .toggle .line2 {
        opacity: 0;
    }

    .toggle .line3 {
        transform: rotate(45deg) translate(-5px, -6px);
    }
}