For the current SASS code.
How to change the height from the content div but when we are on the mobile breakup from the following SASS code.

@use 'sass:map';
@import 'variable';
@import 'typography_mixins';
@import 'fonts';




// Mixins for responsiveness
@mixin mobile {
    @media (max-width: 768px) {
        @content;
    }
}

@mixin tablet {
    @media (min-width: 769px) and (max-width: 1024px) {
        @content;
    }
}

// Reset and base styles
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    line-height: 1.6;
    color: white;
    background-color: black;
    font-family: $font-family-base;
    @include font-size('base');
    @include font-weight('regular');


}

// Navbar and Burger Menu
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 5%;
    background-color: rgba(0,0,0,0.9);
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);

   
    .navbar-brand {
        display: flex;
        align-items: center;
        justify-content: space-between;
        width: 100%;
    }

    .navbar-brand a {
        text-decoration: none;
        color: $background-color;
        font-size: 1.5rem;
        font-weight: bold;
        font-family: $font-family-logo;
    }

    .burger-menu {
        display: none;
        flex-direction: column;
        cursor: pointer;
        z-index: 200;

        @include mobile {
            display: flex;
        }

        .bar {
            width: 25px;
            height: 3px;
            background-color: $primary-color;
            margin: 3px 0;
            transition: 0.4s;

            &.active:nth-child(1) {
                transform: rotate(-45deg) translate(-5px, 6px);
            }

            &.active:nth-child(2) {
                opacity: 0;
            }

            &.active:nth-child(3) {
                transform: rotate(45deg) translate(-5px, -6px);
            }
        }
    }

    .nav-menu {
        display: flex;
        align-items: center;
        list-style: none;

        @include mobile {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100vh;
            background-color: rgba(255, 255, 255, 0.95);
            flex-direction: column;
            justify-content: center;
            align-items: center;
            transform: translateX(100%);
            transition: transform 0.3s ease-in-out;
            z-index: 150;

            &.active {
                transform: translateX(0);
            }

            .nav-item {
                margin: 20px 0;
                font-size: 1.5rem;

                a {
                    text-decoration: none;
                    color: $primary-color;
                    transition: color 0.3s;

                    &:hover {
                        color: darken($primary-color, 10%);
                    }
                }
            }
        }

        .nav-item {
            margin: 0 15px;

            a {
                text-decoration: none;
                color: $background-color;
                transition: color 0.3s;

                &:hover {
                    color: $primary-color;
                }
            }
        }
    }
}

// Adjust hero section for fixed navbar
.hero {
    padding-top: 70px; // Height of the navbar
    position: relative;
    height: 100vh;
    overflow: hidden;

    .video-container {
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
        height: 100%;
        
        video {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .video-control {
            position: absolute;
            bottom: 20px;
            right: 20px;
            background: rgba(0,0,0,0.5);
            color: white;
            border: none;
            padding: 10px;
            cursor: pointer;
        }
    }

    .hero-content {
        position: relative;
        z-index: 2;
        color: white;
        text-align: center;
        padding-top: 20%;

        & a{
            position: absolute;
            left: 50%;
            transform: translate(-50%, 50%);
            text-decoration: none;
            color: white;
            background-color: $primary-color;
            border-radius: 5px;
            transition: background-color 0.3s;
        }
    }

    .btn-primary {
        background-color: $primary-color;
        text-decoration: none;
        color: $background-color;
        border: none;
        padding: 10px 20px;
        border-radius: 5px;
        cursor: pointer;
        transition: background-color 0.3s;
        

        &:hover {
            background-color: darken($primary-color, 10%);
        }
    }

    
}

// Adjust sponsor logos

.sponsored-by {
    text-align: center;
}


#stats {
    padding: 2rem;
    text-align: center;


    h2 {
        margin-bottom: 2rem;
        font-size: 2rem;
        color: $background-color;
    }

    .stats-grid {
        display: grid;
        gap: 2rem;
     

        //Desktop Layout: Horizontal Distribution
        grid-template-columns: repeat(4, 1fr);
        justify-content: center;
        align-items: center;

        @include tablet {
            grid-template-columns: repeat(2, 1fr);
        }

        @include mobile {
            gap: 1.5rem;
            grid-template-columns: 1fr; //Single column on mobile
        }
    }

    .stat-item {
        background-color: black;
        padding: 1.5rem;
        text-align: center;
        transition: background-color 1s, height 1s;
        border: 1px solid white;

        .content {
            display: none;
        }

        &:hover {
            background-color: white;
            height: 500px;
            border: 5px solid #5A4FF0;

            .content {
                display: block;
               
            }

            h3,p {
                color: black;
               
            }

            p {
                font-size: 16px;
            }
        }

        video {
            width: 100%;
            margin-bottom: 1rem;
        }

        h3 {
            margin: 0.5rem 0;
            font-size: 1.5rem;
            color: $background-color;
        }

        p {
            font-size: 1.5rem;
            color: $background-color;
        }

    }
}