@media (max-width: 768px){
    .welcome-main {
        padding-top: 7rem;
    }

    .welcome-btns {
        margin-top: 60px;
    }

    .welcome-btn {
        margin-top: 30px;
        font-size: 25px;
    }

    .signup-main {
        padding-top: 1rem;
        width: 100%;
    }

        .signup-main img {
            width: 90px;
        }

    .signup-main-btn {
        margin-top: 3rem;
    }

    .signup-inputs {
        width: 100%;
    }

    .login-main {
        width: 100%;
    }

    .login-texts h1 {
        margin: 35px 0px;
    }

    .nav {
        width: 100%;
        height: 4.8rem;
    }


    .nav-items .nav-img {
        width: 1.875rem;
    }

    .top-head {
        padding-left: 25px;
    }

    .cards {
        width: 90%;
    }

    .card {
        width: 320px;
        opacity: 0;
        transform: translateY(50px);
        transition: opacity 0.5s ease-out, transform 0.5s ease-out;
        will-change: opacity, transform; /* تحسين الأداء */
    }

        .card.show {
            opacity: 1;
            transform: translateY(0);
        }

        .card:hover {
            transform: none !important;
        }

            .card:hover .card-top {
                height: 29% !important;
                overflow: visible;
            }

                .card:hover .card-top .p {
                    opacity: 1 !important;
                }

    .card-img {
        max-width: 320px;
    }
    /*  SLIDE SHOW OUT IN */
    .slide-out {
        transform: translateX(-100%);
        transition: transform 0.2s ease-out;
    }

    .slide-in {
        transform: translateX(100%);
        animation: slideIn 0.1s forwards;
    }

    @keyframes slideIn {
        from {
            transform: translateX(100%);
        }

        to {
            transform: translateX(0);
        }
    }

    hr {
        width: 80%;
    }

    .profile-main-img {
        margin: 30px 0px 20px 0px;
    }

    .profile-name-text {
        margin: 15px;
    }

    .profile-email-text {
        margin: 15px;
    }

    .sub-details-head {
        width: 100%;
    }

    .lecture-card {
        margin: 20px 0px;
    }

    .pdf-section {
        width: 90%;
        height: 80%;
    }
    .video-btn {
        font-size: 1rem;
        padding: 10px 20px;
        min-width: auto;
        margin: 0px 0.5rem;
        background-color: brown;
        border: none;
        box-shadow: 0px 4px 0px rgb(92, 23, 23);
    }
}

/* TABLET VIEW*/
@media (min-width: 769px) and (max-width: 1024px) {
    .lecture-details-btn {
        width: 20%;
        height: 50%;
    }
}
/* LAPTOP VIEW*/
@media (min-width: 1024px) {
    .lecture-container {
        display: flex;
        width: 100%;
        gap: 10px; /* مسافة بين العناصر */
        align-items: flex-start;
        flex-direction: row;
        justify-content: center; /* توسيط العناصر */
    }

    .pdf-section {
        height: 99%;
        width: 43%;
    }

    .lecture-details-btns {
        flex: 0.5; /* يأخذ مساحة أقل */
        display: flex;
        height: 80%;
        flex-direction: column; /* يخلي الأزرار تحت بعض */
        gap: 10px;
    }

    .lecture-details-btn {
        height: 20%;
    }
}