/* #Information
    -design: desktop-first 
    -standard width: 1025px to 1440px
    -widths adjusted to (Media Queries):
        -smaller than 480px: small smartphones; minimum 320px
        -481px to 768px: standard smartphones
        -769px to 1024px: Tablets
        -1441px to 1920px: large monitors
        -greater than 1921px: ultra-wide or 4K monitors */

/* #region root-html-body */
:root {
    /* Color definition */
    --color01: #FFFFFF;
    --color02: #000000;

    --color03-1: #010A13;
    --color03-2: #112030;
    --color03-3: #143F5B;
    --color03-4: #01060B;

    --color04-1: #8695A4;
    --color04-2: #C8C8C8;

    --color05-1: #C99507;

    /* setting font-size to rem -> 1rem = 10px */
    font-size: 62.5%;
}

* {
    margin: 0;
    padding: 0;
    outline: 0;
    box-sizing: border-box;
    font-family: "Inter", sans-serif;
    color: var(--color01);
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--color03-1);
}

/* #endregion */

/* #region header */
header {
    background-color: var(--color03-4);
    border-bottom: 0.1rem solid var(--color03-2);
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    padding-left: 5%;
    padding-right: 5%;
}

header a img {
    width: 100%;
}

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

header nav a {
    font-size: 1.6rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--color01);
    cursor: pointer;
    margin: 1rem;
    transition: 0.2s;
}

header nav a div {
    background-color: var(--color03-2);
    padding-top: 1rem;
    padding-bottom: 1rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    border-radius: 0.5rem;
}

header nav a:hover {
    color: var(--color04-2);
    transform: scale(1.1);
}

/* #endregion */

/* #region home*/
.home-section {
    width: 100%;
    height: calc(100vh - 6.5rem);
    background-image: url("../img/home_background.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 5%;
    padding-right: 5%;
}

.home-section-div-left {
    width: 50%;
    display: flex;
    flex-direction: column;
}

.home-section-div-left h1 {
    font-size: 4rem;
    font-weight: bold;
    margin-bottom: 2.5rem;
}

.home-section-div-left span {
    font-size: 2.5rem;
    font-weight: 200;
    margin-bottom: 2.5rem;
}

.home-section-div-left a {
    text-decoration: none;
    display: flex;
}

.home-section-div-left a div {
    background-color: var(--color05-1);
    font-weight: 600;
    font-size: 1.8rem;
    padding: 1.8rem;
    border-radius: 0.5rem;
    transition: 0.2s;
}

.home-section-div-left a div:hover {
    transform: scale(1.1);
}

.home-section-div-right {
    width: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
}

.home-section-div-right img {
    width: 60%;
}

/* #endregion */

/* #region about*/
.about-section {
    width: 100%;
    display: flex;
    padding-left: 5%;
    padding-right: 5%;
    padding-top: 1%;
    padding-bottom: 1%;
    align-items: center;
    justify-content: center;
    border-top: 0.1rem solid var(--color05-1);
    border-bottom: 0.1rem solid var(--color05-1);
}

.about-section-div-left {
    width: 50%;
    display: flex;
    justify-content: end;
    align-items: center;
    margin-right: 5%;
}

.about-section-div-left img {
    max-width: 80%;
}

.about-section-div-right {
    width: 50%;
    margin-left: 5%;
    display: flex;
    flex-direction: column;
    align-items: start;
    justify-content: center;
}

.about-section-div-right h2 {
    width: 80%;
    font-size: 3rem;
    font-weight: bold;
    padding-bottom: 2rem;
    text-align: start;
}

.about-section-div-right-style {
    color: var(--color05-1);
    font-size: 3rem;
    font-weight: bold;
}

.about-section-div-right-span {
    width: 80%;
    font-size: 2.2rem;
    font-weight: 400;
    padding-bottom: 2rem;
    text-align: justify;
}

.about-section-div-right-div-links {
    display: flex;
    width: 65%;
    justify-content: start;
    align-items: center;
}

.about-section-div-right-div-links a {
    margin-right: 5%;
    transition: 0.2s;
}

.about-section-div-right-div-links a img {
    width: 100%;
}

.about-section-div-right-div-links a:hover {
    transform: scale(1.1);
}

/* #endregion */

/* #region projects */
.projects-section {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding-left: 5%;
    padding-right: 5%;
    padding-top: 1%;
    padding-bottom: 1%;
}

.projects-section h2 {
    font-weight: bold;
    font-size: 3.6rem;
    padding-bottom: 0.5%;
}

.projects-section-div-row {
    display: flex;
    justify-content: center;
    align-items: center;
}

.projects-section-div-row-item {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    margin: 2rem;
}

.projects-section-div-row-item a {
    transition: 0.3s;
    display: flex;
    justify-content: center;
    align-items: center;
}

.projects-section-div-row-item a:hover {
    transform: scale(1.1);
}

.projects-section-div-row-item a img {
    margin-bottom: 0.5rem;
    width: 100%;
}

.projects-section-div-row-item p {
    margin-bottom: 0.5rem;
    font-size: 2rem;
    font-weight: bold;
    color: var(--color01);
}

.projects-section-div-row-item span {
    font-size: 1.8rem;
    font-weight: 400;
    color: var(--color04-2);
}

/* #endregion */

/* #region member */
.member-section {
    width: 100%;
    background-image: url("../img/member_background.png");
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center center;
    display: flex;
    padding-top: 5%;
    padding-bottom: 5%;
    padding-left: 5%;
    padding-right: 5%;
}

.member-section-div-left {
    width: 50%;
    display: flex;
    align-items: center;
    justify-content: end;
    margin-right: 2%;
}

.member-section-div-left h2 {
    width: 70%;
    font-size: 3.6rem;
    font-weight: bold;
}

.member-section-div-right {
    width: 50%;
    display: flex;
    align-items: center;
    justify-content: start;
    margin-left: 2%;
}

.member-section-div-right-form {
    display: flex;
    flex-direction: column;
    width: 55%;
}

.member-section-div-right-form p {
    font-size: 2rem;
    font-weight: 400;
    color: var(--text);
    margin-bottom: 0.5rem;
    margin-left: 0.5rem;
}

.member-section-div-right-form input {
    font-weight: 400;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    height: 4rem;
    border: 0.1rem solid var(--color04-1);
    border-radius: 1rem;
    color: var(--color01);
    background-color: var(--color03-2);
    padding-inline-start: 1rem;
}

.member-section-div-right-form select {
    font-weight: 400;
    font-size: 1.8rem;
    margin-bottom: 1rem;
    height: 4rem;
    border: 0.1rem solid var(--color04-1);
    border-radius: 1rem;
    color: var(--color01);
    background-color: var(--color03-2);
    padding-inline-start: 1rem;
}

.member-section-div-right-form button {
    font-size: 2rem;
    font-weight: bold;
    color: var(--color01);
    background-color: var(--color05-1);
    border: 0.1rem solid var(--color01);
    height: 5rem;
    border-radius: 1rem;
    transition: 0.2s;
}

.member-section-div-right-form button:hover {
    transform: scale(1.04);
}

.member-section-div-right-form-message {
    padding-top: 1rem;
    color: var(--color01);
    font-size: 2rem;
    font-weight: normal;
}

/* #endregion */

/*#region footer */
footer {
    background-color: var(--color03-1);
    border-top: 0.2rem solid var(--color03-2);
    display: flex;
    align-items: center;
    justify-content: center;
}

footer img {
    height: 6.5rem;
}

footer p {
    margin: 0;
    text-align: center;
    font-size: 1.6rem;
}

/* #endregion */

/* #region Media Queries */

/* smaller than 480px: small smartphones; minimum 320px */
@media (max-width: 480px) {

    /* #region header */
    header {
        background-color: var(--color03-4);
        border-bottom: 0.2rem solid var(--color03-2);
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        position: sticky;
        top: 0;
        padding-top: 5%;
        padding-bottom: 5%;
        padding-left: 5%;
        padding-right: 5%;
    }

    header a {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center
    }

    header a img {
        width: 70%;
    }

    header nav {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    header nav a {
        font-size: 1.6rem;
        font-weight: 600;
        text-decoration: none;
        color: var(--color01);
        cursor: pointer;
        margin: 0;
        margin-right: 0.5rem;
        margin-left: 0.5rem;
        margin-top: 1.5rem;
        transition: 0.2s;
    }

    .header-nav-a-sub {
        display: none;
    }

    /* #endregion */

    /* #region home*/
    .home-section {
        width: 100%;
        height: calc(100vh - 8rem);
        background-image: url("../img/home_background.png");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center center;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding-left: 5%;
        padding-right: 5%;
    }

    .home-section-div-left {
        width: 100%;
        height: 60%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .home-section-div-left h1 {
        font-size: 2rem;
        font-weight: bold;
        margin-bottom: 2rem;
    }

    .home-section-div-left span {
        font-size: 1.5rem;
        font-weight: 200;
        margin-bottom: 2.5rem;
    }

    .home-section-div-left a div {
        background-color: var(--color05-1);
        font-weight: 600;
        font-size: 1.2rem;
        padding: 1.2rem;
        border-radius: 0.5rem;
        transition: 0.2s;
    }

    .home-section-div-right {
        width: 100%;
        height: 40%;
        display: flex;
        align-items: start;
        justify-content: center;
    }

    .home-section-div-right img {
        width: 70%;
    }

    /* #endregion */

    /* #region about*/
    .about-section {
        width: 100%;
        display: flex;
        flex-direction: column;
        padding-left: 5%;
        padding-right: 5%;
        padding-top: 5%;
        padding-bottom: 5%;
        align-items: center;
        justify-content: center;
        border-top: 0.1rem solid var(--color05-1);
        border-bottom: 0.1rem solid var(--color05-1);
    }

    .about-section-div-left {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 0;
        padding-bottom: 5%;
    }

    .about-section-div-left img {
        max-width: 70%;
    }

    .about-section-div-right {
        width: 100%;
        margin-left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .about-section-div-right h2 {
        width: 100%;
        font-size: 2rem;
        font-weight: bold;
        padding-bottom: 1rem;
        text-align: center;
    }

    .about-section-div-right-style {
        color: var(--color05-1);
        font-size: 2rem;
        font-weight: bold;
    }

    .about-section-div-right-span {
        width: 90%;
        font-size: 1.4rem;
        font-weight: 400;
        padding-bottom: 2rem;
        text-align: justify;
    }

    .about-section-div-right-div-links {
        display: flex;
        width: 80%;
        justify-content: start;
        align-items: center;
    }

    .about-section-div-right-div-links a {
        margin-right: 2%;
        margin-left: 2%;
        transition: 0.2s;
    }

    /* #endregion */

    /* #region projects */
    .projects-section {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding-left: 5%;
        padding-right: 5%;
        padding-top: 5%;
        padding-bottom: 5%;
    }

    .projects-section h2 {
        font-weight: bold;
        font-size: 2rem;
        padding-bottom: 1%;
    }

    .projects-section-div-row {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .projects-section-div-row-item {
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        margin: 2%;
    }

    .projects-section-div-row-item a img {
        margin-bottom: 0.5rem;
        width: 80%;
    }

    .projects-section-div-row-item p {
        margin-bottom: 0.5rem;
        font-size: 1.7rem;
        font-weight: bold;
        color: var(--color01);
    }

    .projects-section-div-row-item span {
        font-size: 1.4rem;
        font-weight: 400;
        color: var(--color04-2);
    }

    /* #endregion */

    /* #region member */
    .member-section {
        width: 100%;
        background-image: url("../img/member_background.png");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center center;
        display: flex;
        flex-direction: column;
        padding-top: 5%;
        padding-bottom: 5%;
        padding-left: 5%;
        padding-right: 5%;
    }

    .member-section-div-left {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 0;
        padding-top: 1rem;
        padding-bottom: 2rem;
    }

    .member-section-div-left h2 {
        width: 100%;
        font-size: 1.8rem;
        font-weight: bold;
        text-align: center;
    }

    .member-section-div-right {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-left: 0;
    }

    .member-section-div-right-form {
        display: flex;
        flex-direction: column;
        width: 90%;
    }

    .member-section-div-right-form p {
        font-size: 1.2rem;
        font-weight: 400;
        color: var(--text);
        margin-bottom: 0.5rem;
        margin-left: 0.5rem;
    }

    .member-section-div-right-form input {
        font-weight: 400;
        font-size: 1.2rem;
        margin-bottom: 1rem;
        height: 3.5rem;
        border: 0.1rem solid var(--color04-1);
        border-radius: 1rem;
        color: var(--color01);
        background-color: var(--color03-2);
        padding-inline-start: 1rem;
    }

    .member-section-div-right-form select {
        font-weight: 400;
        font-size: 1.2rem;
        margin-bottom: 1rem;
        height: 3.5rem;
        border: 0.1rem solid var(--color04-1);
        border-radius: 1rem;
        color: var(--color01);
        background-color: var(--color03-2);
        padding-inline-start: 1rem;
    }

    .member-section-div-right-form button {
        font-size: 1.2rem;
        font-weight: bold;
        color: var(--color01);
        background-color: var(--color05-1);
        border: 0.1rem solid var(--color01);
        height: 4rem;
        border-radius: 1rem;
        transition: 0.2s;
    }

    .member-section-div-right-form-message {
        padding-top: 1rem;
        color: var(--color01);
        font-size: 1.2rem;
        font-weight: normal;
    }

    /* #endregion */

    /*#region footer */

    footer img {
        height: 3rem;
    }

    footer p {
        margin: 0;
        text-align: center;
        font-size: 0.8rem;
    }

    /* #endregion */

}

/* 481px to 768px: standard smartphones */
@media (min-width: 481px) and (max-width: 768px) {

    /* #region header */
    header {
        background-color: var(--color03-4);
        border-bottom: 0.1rem solid var(--color03-2);
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-between;
        position: sticky;
        top: 0;
        padding-top: 3%;
        padding-left: 5%;
        padding-right: 5%;
    }

    /* #endregion */

    /* #region home*/
    .home-section {
        width: 100%;
        height: calc(100vh - 6.5rem);
        background-image: url("../img/home_background.png");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center center;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding-left: 5%;
        padding-right: 5%;
    }

    .home-section-div-left {
        width: 100%;
        height: 50%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: end;
    }

    .home-section-div-left h1 {
        font-size: 3.5rem;
        font-weight: bold;
        margin-bottom: 2rem;
    }

    .home-section-div-left span {
        font-size: 2rem;
        font-weight: 200;
        margin-bottom: 2rem;
    }

    .home-section-div-left a div {
        background-color: var(--color05-1);
        font-weight: 600;
        font-size: 1.4rem;
        padding: 1.4rem;
        border-radius: 0.5rem;
        transition: 0.2s;
    }

    .home-section-div-right {
        width: 100%;
        height: 50%;
        display: flex;
        justify-content: center;
        align-items: center;
    }

    .home-section-div-right img {
        width: 55%;
    }

    /* #endregion */

    /* #region about*/
    .about-section {
        width: 100%;
        display: flex;
        flex-direction: column;
        padding-left: 5%;
        padding-right: 5%;
        padding-top: 5%;
        padding-bottom: 5%;
        align-items: center;
        justify-content: center;
        border-top: 0.1rem solid var(--color05-1);
        border-bottom: 0.1rem solid var(--color05-1);
    }

    .about-section-div-left {
        width: 100%;
        display: flex;
        justify-content: center;
        align-items: center;
        margin-right: 0;
        padding-bottom: 5%;
    }

    .about-section-div-left img {
        max-width: 60%;
    }

    .about-section-div-right {
        width: 100%;
        margin-left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .about-section-div-right h2 {
        width: 80%;
        font-size: 2.2rem;
        font-weight: bold;
        padding-bottom: 2rem;
        text-align: center;
    }

    .about-section-div-right-style {
        color: var(--color05-1);
        font-size: 2.2rem;
        font-weight: bold;
    }

    .about-section-div-right-span {
        width: 80%;
        font-size: 1.7rem;
        font-weight: 400;
        padding-bottom: 2rem;
        text-align: justify;
    }

    .about-section-div-right-div-links {
        display: flex;
        width: 80%;
        justify-content: center;
        align-items: center;
    }

    .about-section-div-right-div-links a {
        margin-right: 2.5%;
        margin-left: 2.5%;
        transition: 0.2s;
    }

    /* #endregion */

    /* #region projects */
    .projects-section {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding-left: 5%;
        padding-right: 5%;
        padding-top: 3%;
        padding-bottom: 1%;
    }

    .projects-section h2 {
        font-weight: bold;
        font-size: 2.5rem;
        padding-bottom: 0;
    }

    .projects-section-div-row {
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .projects-section-div-row-item a img {
        margin-bottom: 0.5rem;
        width: 80%;
    }

    /* #endregion */

    /* #region member */
    .member-section {
        width: 100%;
        background-image: url("../img/member_background.png");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center center;
        display: flex;
        flex-direction: column;
        padding-top: 5%;
        padding-bottom: 5%;
        padding-left: 5%;
        padding-right: 5%;
    }

    .member-section-div-left {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 0;
        margin-bottom: 5%;
    }

    .member-section-div-left h2 {
        width: 90%;
        font-size: 2rem;
        font-weight: bold;
        text-align: center;
    }

    .member-section-div-right {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-left: 0;
    }

    .member-section-div-right-form {
        display: flex;
        flex-direction: column;
        width: 90%;
    }

    .member-section-div-right-form p {
        font-size: 1.4rem;
        font-weight: 400;
        color: var(--text);
        margin-bottom: 0.5rem;
        margin-left: 0.5rem;
    }

    .member-section-div-right-form input {
        font-weight: 400;
        font-size: 1.4rem;
        margin-bottom: 1rem;
        height: 4rem;
        border: 0.1rem solid var(--color04-1);
        border-radius: 1rem;
        color: var(--color01);
        background-color: var(--color03-2);
        padding-inline-start: 1rem;
    }

    .member-section-div-right-form select {
        font-weight: 400;
        font-size: 1.4rem;
        margin-bottom: 1rem;
        height: 4rem;
        border: 0.1rem solid var(--color04-1);
        border-radius: 1rem;
        color: var(--color01);
        background-color: var(--color03-2);
        padding-inline-start: 1rem;
    }

    .member-section-div-right-form button {
        font-size: 1.8rem;
        font-weight: bold;
        color: var(--color01);
        background-color: var(--color05-1);
        border: 0.1rem solid var(--color01);
        height: 5rem;
        border-radius: 1rem;
        transition: 0.2s;
    }

    .member-section-div-right-form-message {
        padding-top: 1rem;
        color: var(--color01);
        font-size: 1.4rem;
        font-weight: normal;
    }

    /* #endregion */

    /*#region footer */
    footer img {
        height: 4rem;
    }

    footer p {
        margin: 0;
        text-align: center;
        font-size: 1rem;
    }

    /* #endregion */
}

/* 769px to 1024px: Tablets */
@media (min-width: 769px) and (max-width: 1024px) {

    /* #region header */
    header {
        background-color: var(--color03-4);
        border-bottom: 0.1rem solid var(--color03-2);
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: space-between;
        position: sticky;
        top: 0;
        padding-top: 2%;
        padding-left: 5%;
        padding-right: 5%;
    }

    /* #endregion */

    /* #region home */
    .home-section {
        width: 100%;
        height: calc(100vh - 6.5rem);
        background-image: url("../img/home_background.png");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center center;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding-left: 5%;
        padding-right: 5%;
    }

    .home-section-div-left {
        width: 100%;
        height: 50%;
        margin-bottom: 5%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: end;

    }

    .home-section-div-left h1 {
        font-size: 3rem;
        font-weight: bold;
    }

    .home-section-div-left span {
        width: 80%;
        font-size: 2rem;
        font-weight: 200;
    }

    .home-section-div-right {
        width: 100%;
        height: 50%;
        margin-top: 5%;
        display: flex;
        align-items: start;
        justify-content: center;
    }

    .home-section-div-right img {
        width: 50%;
    }

    /* #endregion */

    /* #region about */
    .about-section {
        width: 100%;
        padding-left: 0;
        padding-right: 0;
        padding-top: 1%;
        padding-bottom: 3%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        border-top: 0.1rem solid var(--color05-1);
        border-bottom: 0.1rem solid var(--color05-1);
    }

    .about-section-div-left {
        width: 100%;
        display: flex;
        align-items: center;
        justify-content: center;
        margin-right: 0;
        margin-top: 3%;
        margin-bottom: 3%;
    }

    .about-section-div-left img {
        max-width: 50%;
    }

    .about-section-div-right {
        width: 100%;
        margin-left: 0;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
    }

    .about-section-div-right h2 {
        width: 80%;
        font-size: 3rem;
        font-weight: bold;
        padding-bottom: 2rem;
        text-align: center;
    }

    .about-section-div-right-span {
        width: 80%;
        font-size: 2.2rem;
        font-weight: 400;
        padding-bottom: 2rem;
        text-align: justify;
    }

    .about-section-div-right-div-links {
        display: flex;
        width: 80%;
        justify-content: center;
        align-items: center;
    }

    .about-section-div-right-div-links a {
        margin-right: 2%;
        margin-left: 2%;
        transition: 0.2s;
    }

    /* #endregion */

    /* #region projects */
    .projects-section {
        width: 100%;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding-left: 5%;
        padding-right: 5%;
        padding-top: 2%;
        padding-bottom: 1%;
    }

    .projects-section h2 {
        font-weight: bold;
        font-size: 3rem;
        padding-bottom: 0.5%;
    }

    .projects-section-div-row-item p {
        margin-bottom: 0.5rem;
        font-size: 1.5rem;
        font-weight: bold;
        color: var(--color01);
    }

    .projects-section-div-row-item span {
        font-size: 1.3rem;
        font-weight: 400;
        color: var(--color04-2);
    }

    /* #endregion */

    /* #region member */
    .member-section {
        width: 100%;
        background-image: url("../img/member_background.png");
        background-size: cover;
        background-repeat: no-repeat;
        background-position: center center;
        display: flex;
        align-items: center;
        justify-content: center;
        padding-top: 3%;
        padding-bottom: 3%;
        padding-left: 5%;
        padding-right: 5%;
    }

    .member-section-div-left h2 {
        width: 100%;
        font-size: 3rem;
        font-weight: bold;
        text-align: center;
    }

    .member-section-div-right-form {
        display: flex;
        flex-direction: column;
        width: 80%;
    }

    .member-section-div-right-form p {
        font-size: 2rem;
        font-weight: 400;
        color: var(--text);
        margin-bottom: 0.5rem;
        margin-left: 0.5rem;
    }

    .member-section-div-right-form input {
        font-weight: 400;
        font-size: 1.4rem;
        margin-bottom: 1rem;
        height: 4rem;
        border: 0.1rem solid var(--color04-1);
        border-radius: 1rem;
        color: var(--color01);
        background-color: var(--color03-2);
        padding-inline-start: 1rem;
    }

    .member-section-div-right-form select {
        font-weight: 400;
        font-size: 1.4rem;
        margin-bottom: 1rem;
        height: 4rem;
        border: 0.1rem solid var(--color04-1);
        border-radius: 1rem;
        color: var(--color01);
        background-color: var(--color03-2);
        padding-inline-start: 1rem;
    }

    .member-section-div-right-form-message {
        padding-top: 1rem;
        color: var(--color01);
        font-size: 1.4rem;
        font-weight: normal;
    }

    /* #endregion */
}

/* greater than 1921px: ultra-wide or 4K monitors */
@media (min-width: 1921px) {

    /* #region home */
    .home-section-div-left h1 {
        font-size: 4.5rem;
        font-weight: bold;
        margin-bottom: 2.5rem;
        text-align: start;
    }

    .home-section-div-left span {
        font-size: 3rem;
        font-weight: 200;
        margin-bottom: 2.5rem;
        text-align: start;
    }

    .home-section-div-left a {
        text-decoration: none;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .home-section-div-left a div {
        background-color: var(--color05-1);
        font-weight: 600;
        font-size: 2.7rem;
        padding: 2rem;
        border-radius: 1rem;
        transition: 0.2s;
    }

    .home-section-div-right img {
        width: 45%;
    }

    /* #endregion */
}

/* #endregion */