:root {
    --blau-dunkel: #046f85;
    --blau-mid: #1c7cac;
    --blau-hell: #0eaece;
    --text-color: #F9F7F0;
    --second-text-color: #dbe7eb;
    --background-color: #03111a;
    --background-color2: #03111aea;
    --color-fix: #dddddd;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    width: 100%;
}

body {
    width: 100%;
    font-family: 'Roboto', sans-serif;
}

header {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-evenly;
    background: linear-gradient(0.25turn, var(--color-fix), var(--second-text-color));
}

.circle img {
    width: 150px;
    margin-right: 150px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 20px;
    font-weight: 800;
    font-size: 20px;
}

nav a {
    text-decoration: none;
    color: var(--blau-dunkel);
    padding: 0 0.15rem;
    position: relative;
    font-size: 1rem;
}

nav a:hover {
    color: var(--blau-dunkel);
}

nav a::after {
    content: '';
    height: 2px;
    width: 0;
    position: absolute;
    background: var(--blau-dunkel);
    transition: 250ms ease-in-out;
    bottom: 0;
    left: 0;
}

nav a:hover::after {
    width: 100%;
}

.burger-menu {
    position: relative;
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}

.burger-menu img {
    width: 30px;
    height: auto;
}

.main-box {
    background: url('img/background.jpg');
    background-size: cover;
    background-attachment: fixed;
    background-repeat: no-repeat;
    position: relative;
}

.main-box::before {
    position: absolute;
    top: 0;
    left: 0;
    content: " ";
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
}

.text-content {
    width: 100%;
    font-size: 40px;
    color: var(--blau-hell);
    text-align: center;
    position: relative;
    padding: 8rem 15rem;
    z-index: 2;
    border-bottom: 2px solid var(--text-color);
}

.text-content h1 {
    color: var(--text-color);
}

.text-content h5, h4 {
    padding-top: 30px;
}

.text-content p {
    font-size: 25px;
    padding-top: 30px;
}

button {
    color: var(--text-color);
    text-decoration: none;
    padding: 8px 15px;
    border-radius: 10px;
    background: transparent;
    border: 2px solid var(--blau-hell);
    font-weight: 600;
    font-size: 20px;
    margin-top: 1rem;
}

button:hover {
    border: 2px solid var(--blau-dunkel);
    background-color: var(--blau-dunkel);
    color: var(--text-color);
}

.button2 {
    display: flex;
    justify-content: center;
}

.button2 a {
    text-decoration: none;
    color: var(--text-color);
}

.service {
    width: 100%;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    margin: 0 auto;
    padding: 2rem 1rem;
    position: relative;
}

.service .service_box {
    width: 70%;
    display: flex;
    flex-wrap: wrap;
    flex-direction: row;
    justify-content: center;
    margin: 4rem auto;
    gap: 2rem;
    z-index: 10;
}

.service h2 {
    width: 100%;
    font-size: 3rem;
    text-align: center;
    color: var(--text-color);
    z-index: 10;
}

.service .text-angebot {
    width: 50%;
    font-size: 25px;
    color: var(--blau-hell);
    text-align: center;
    padding-top: 30px;
}

.service .service_box .card {
    max-width: 400px;
    width: 100%;
    padding: 2rem 1rem;
    color: var(--text-color);
    background-color: var(--blau-dunkel);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-radius: 1rem;
}

.service .service_box .card img {
    max-width: 20rem;
    width: 100%;
    object-fit: cover;
    margin: 2rem auto 1.5rem auto;
}

.service .service_box .card p {
    font-size: 1.25rem;
    text-align: center;
}

.service .service_box .card h1 {
    text-align: center;
}

.footer-content {
    display: flex;
    justify-content: space-evenly;
    align-items: center;
    bottom: 0;
    width: 100%;
    height: 80px;
    color: var(--blau-dunkel);
    background-color: var(--color-fix);
    z-index: 2;
}

.footer-content a {
    text-decoration: none;
    color: var(--blau-dunkel);
    font-size: 1rem;
    cursor: pointer;
}

.social-icons {
    display: flex;
    gap: 10px;
    cursor: pointer;
}

.icons {
    width: 26px;
}

.icons2 {
    width: 20px;
}

.copys {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 5px;
}

.copys .c {
    width: 16px;
}

.copys h2 {
    font-weight: 700;
    font-size: 1rem;
}

@media (max-width: 1100px) {
    nav ul {
        position: absolute;
        top: 70px;
        left: 0;
        right: 0;
        flex-direction: column;
        z-index: 1000;
        text-align: center;
        background: linear-gradient(0.25turn, var(--color-fix), var(--second-text-color));
        gap: 0;
        overflow: hidden;
    }

    nav ul li {
        padding: 20px;
    }

    .burger-menu {
        display: block;
    }

    #menuList {
        transition: all 0.5s;
    }

    .service .text-angebot {
        width: initial;
        padding: 30px 10px 0 10px;
    }
}

@media (max-width: 1060px) {
    .text-content {
        padding: 8rem 10rem;
    }
}

@media (max-width: 900px) {
    .text-content {
        padding: 8rem 5rem;
    }

    .text-content h1 {
        font-size: 60px;
    }
}

@media (max-width: 700px) {
    .text-content {
        padding: 8rem 4rem;
    }

    .text-content h1 {
        font-size: 45px;
    }
}

@media (max-width: 500px) {
    .text-content {
        padding: 8rem 1rem;
    }

    .text-content h1 {
        font-size: 1.75rem;
    }

    .text-content h5, h4 {
        font-size: 25px;
    }

    .service h2 {
        font-size: 2rem;
    }

    .burger-menu {
        position: absolute;
        top: 21px;
        right: 33px;
    }

    .footer-content {
        flex-direction: column;
    }

    .social-icons .icons {
        width: 20px;
    }

    .service .service_box .card p {
        font-size: 18px;
    }
}

@media (max-width: 375px) {
    .service {
        padding: 2rem 0;
    }

    .service .text-angebot {
        font-size: 20px;
    }

    .service .service_box .card h1 {
        font-size: 18px;
    }

    .service .service_box .card p {
        font-size: 16px;
    }

    button {
        font-size: 16px;
    }
}

@media (max-width: 320px) {
    .service h2 {
        font-size: 1.75rem;
    }

    .text-content p {
        font-size: 20px;
    }

    .service .service_box .card p {
        font-size: 13px;
    }
}