@media only screen and (max-width: 500px) and (orientation: portrait) {
    /* header */
    .top-navigation-bar {
        width: 350px;
        padding: 24px 20px;
    }

    .logo {
        width: 92px;
        height: 28px;
    }

    .menu-tab {
        display: flex;
    }

    .close-btn {
        display: inline;
    }

    .navigation-bar {
        width: 100%;
        max-width: 350px;
    }

    .top-nav-element {
        display: none;
        position: fixed;
        top: 0;
        right: -100%;
        width: 289px;
        height: 100%;
        background-color: white;
        flex-direction: column;
    }
    /* menu-tab animation */
    .top-nav-element.show {
        display: block;
        right: 0;
        background-color: #263140;
        animation: slide-in 0.3s ease-out;
    }

    .top-nav-element.hide {
        animation: slide-out 0.3s ease-out;
    }

    @keyframes slide-in {
        0% {
            transform: translateX(100%);
        }
        100% {
            transform: translateX(0);
        }
    }

    @keyframes slide-out {
        0% {
            transform: translateX(0);
        }
        100% {
            transform: translateX(100%);
        }
    }

    .nav-links {
        margin-top: 120px;
        margin-left: 50px;
    }

    .nav-links a {
        display: block;
        width: auto;
        height: 20px;
        font-size: 16px;
        font-weight: 700;
        line-height: 20px;
        text-align: left;
        color: white;
        margin: 0;
        margin-bottom: 30px;
    }

    .top-nav-element .download-btn {
        margin-left: 40px;
        margin-top: 20px;
    }

    header {
        height: 76px;
    }

    #header {
        height: 718px;
    }

    .header-content {
        flex-direction: column;
        justify-content: flex-start;
        align-items: center;
    }

    .header-text-section {
        text-align: center;
    }

    .header-text-section h1 {
        width: 251px;
        height: 90px;
        font-size: 24px;
        font-weight: 700;
        line-height: 30px;
        margin-top: 40px;
    }

    .header-text-section p {
        width: 270px;
        height: 98px;
        font-size: 14px;
        font-weight: 400;
        line-height: 18px;
        margin-top: 30px;
    }

    .header-text-section button {
        width: 114px;
        height: 40px;
        padding: 11px 24px;
        margin-top: 30px;
        border-radius: 40px;
    }

    .header-image-section {
        width: 197px;
        height: 422px;
    }

    .header-image-section img {
        width: 100%;
        height: 100%;
        margin-top: 0;
    }

    .BodyFirst {
        flex-direction: column;
        justify-content: center;
        align-items: center;
        text-align: left;
    }

    .BodyFirst img {
        width: 326px;
        height: 190px;
        margin: 40px 32px;
    }

    .bodyfirst-text-section {
        width: 326px;
        text-align: left;
    }

    .bodyfirst-text-section h1 {
        font-size: 24px;
        font-weight: 700;
        line-height: 30px;
        height: 90px;
    }

    .bodyfirst-text-section p {
        font-size: 14px;
        font-weight: 400;
        line-height: 18px;
        height: 36px;
    }

    .bodysecond-text-section {
        text-align: center;
        margin-top: 60px;
    }

    hr {
        width: 100%;
        max-width: 360px;
    }

    .bodysecond-text-section h4 {
        width: 326px;
        font-size: 24px;
        font-weight: 700;
        line-height: 30px;
        text-align: center;
    }

    .bodysecond-text-section p {
        width: 326px;
        font-size: 16px;
        font-weight: 400;
        line-height: 20px;
        text-align: center;
    }

    .bodysecond-image-section div {
        width: 326px;
        display: inline;
    }

    .frame3,
    .frame4 {
        display: block;
    }

    .frame3 img,
    .frame4 img {
        width: 326px;
        height: 326px;
        margin: 32px 32px 0 32px;
    }

    .frame5 {
        width: 218px;
        margin: 60px auto;
    }

    .frame5 span {
        font-size: 18px;
        font-weight: 700;
        line-height: 24px;
        text-align: center;
    }

    .bodythird {
        width: 100%;
        max-width: 326px;
        margin: 0 auto;
    }

    .bodythird-text-section h2 {
        font-size: 24px;
        font-weight: 700;
        line-height: 30px;
    }

    .bodythird-text-section p {
        width: 100%;
        font-size: 16px;
        font-weight: 500;
        line-height: 20px;
    }

    .subscribe {
        width: 100%;
        max-width: 326px;
        min-height: 348px;
        display: flex;
        flex-direction: column;
        transform: translate(-50%, 20%);
    }

    .sub-text-section {
        height: auto;
        text-align: left;
        margin: 36px 32px 30px 32px;
    }

    .sub-text-section h3 {
        width: 100%;
        max-width: 187px;
        height: 60px;
        font-size: 24px;
        font-weight: 700;
        line-height: 30px;
        text-align: left;
        margin-bottom: 18px;
        margin-right: 23px;
    }

    .sub-text-section p {
        height: 72px;
        font-size: 14px;
        font-weight: 400;
        line-height: 18px;
    }

    .sub-input-section {
        height: auto;
        width: 262px;
        display: block;
        position: static;
        margin: 0 auto;
    }

    .sub-input-section input {
        width: 208px;
        height: 34px;
        background-size: 18px;
        padding-left: 48px;
        background-position: 16px center;
        font-size: 12px;
        font-weight: 400;
        line-height: 16px;
        text-align: left;
    }

    .sub-input-section button {
        width: 115px;
        height: 40px;
        font-size: 14px;
        font-weight: 700;
        line-height: 18px;
        padding: 11px 24px;
        position: static;
        float: right;
        margin-top: 20px;
        margin-bottom: 30px;
    }

    .sub-img img {
        width: 100%;
        height: 240px;
        background-position: center;
    }

    #modalPanel {
        width: 300px;
        height: 300px;
        background-size: contain;
        background-repeat: no-repeat;
        background-color: #f2e9d8;
    }

    #modalPanel img {
        width: 60px;
        height: 62px;
        margin-top: 40px;
    }

    #modalPanel h3 {
        width: 126px;
        font-size: 24px;
        line-height: 30px;
    }

    #modalPanel p {
        width: 189px;
        font-weight: 400;
        line-height: 18px;
        margin-top: 10px;
    }

    #modalPanel button {
        width: 158px;
        height: 40px;
        padding: 11px 24px;
        gap: 10px;
        margin-top: 28px;
    }

    #scroll-top-btn {
        width: 30px;
        height: 30px;
    }

    .footer-div {
        height: 178px;
        display: inline-block;
        position: relative;
    }

    .footer-logo img {
        width: 112px;
        height: 34px;
        position: absolute;
        top: 32px;
        left: 20px;
    }

    .footer-icons img {
        width: 176px;
        height: 32px;
        position: absolute;
        left: 20px;
        bottom: 24px;
        cursor: pointer;
    }

    .footer-menu {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 30px;
        left: 285px;
        gap: 16px;
        text-align: right;
    }
}