* {
    margin: 0;
    padding: 0;
    list-style: none;
    text-decoration: none;
    font-family: Arial, Helvetica, sans-serif;
    box-sizing: border-box;
}

body {
    background-color: gray;
}

header {
    width: 100%;
    height: 80px;
    background: #11101b;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 100px;
}

.logo {
    font-size: 28px;
    font-weight: bold;
    color: #fefefe;
}

.hamburger {
    display: none;
}

.nav-bar ul {
    display: flex;
}

.nav-bar ul li a {
    display: block;
    color: #fefefe;
    font-size: 20px;
    padding: 10px 25px;
    border-radius: 50px;
    transition: 0.2s;
    margin: 0 5px;
}

.nav-bar ul li a:hover {
    color: #11101b;
    background: #fefefe;
}

.nav-bar ul li a.active {
    color: #11101b;
    background: #fefefe;
}

@media only screen and (max-width: 1320px) {
    header {
        padding: 0 50px;
    }
}

@media only screen and (max-width: 1100px) {
    header {
        padding: 0 30px;
    }
}

@media only screen and (max-width: 900px) {
    .hamburger {
        display: block;
        cursor: pointer;
        text-align: center;
        background: #1b1b1b;
        height: 45px;
        width: 45px;
        border-radius: 3px;
        cursor: pointer;
    }

    .hamburger span {
        color: white;
        font-size: 28px;
        line-height: 45px;
    }

    .nav-bar {
        height: 0;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        width: 100vw;
        background: #11101b;
        transition: 0.5s;
        overflow: hidden;
    }

    .nav-bar.active {
        height: 450px;
    }

    .nav-bar ul {
        display: block;
        width: fit-content;
        margin: 80px auto 0 auto;
        text-align: center;
        transition: 0.5s;
        opacity: 0;
    }

    .nav-bar.active ul {
        opacity: 1;
    }

    .nav-bar ul li a {
        margin-bottom: 12px;
    }
}

.container {
    width: 100%;
    height: 100vh;
    background: gray;
    display: flex;
    align-items: center;
    justify-content: center;
}

form {
    background: white;
    display: flex;
    flex-direction: column;
    padding: 2vw 4vw;
    width: 90%;
    max-width: 600px;
    border-radius: 10px;
}

form h3 {
    color: #555;
    font-weight: 800;
    margin-bottom: 20px;
    text-align: center;
}

form input,
form textarea {
    border: 0;
    margin: 10px 0;
    padding: 20px;
    outline: none;
    background: #f5f5f5;
    font-size: 16px;
}

form button {
    padding: 15px;
    background: cyan;
    color: #1b1b1b;
    font-size: 18px;
    border: 0;
    outline: none;
    cursor: pointer;
    width: 150px;
    margin: 20px auto 0;
    border-radius: 30px;
}

.language-switcher {
    position: absolute;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.language-switcher select {
    padding: 8px 12px;
    border-radius: 4px;
    border: 1px solid #ccc;
    background-color: white;
    font-size: 14px;
    cursor: pointer;
}

.language-switcher select:focus {
    outline: none;
    border-color: #666;
}