/*html,
body {
    margin: 0;
    padding: 0;
    font: 16px "Roboto", sans-serif;
    background: #7156f3;
}

* {
    box-sizing: border-box;
}*/

.form-wrapper {
    width: 100%;
    padding: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.s2tg-contact-form {
    width: 100%;
    max-width: 460px;
    padding: 60px;
    background: #1c1e21;
    border-radius: 10px;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
}

.s2tg-contact-form__title {
    text-transform: uppercase;
    line-height: 1.5;
    text-align: center;
    color: #fff1c6;
    font-size: 18px;
    margin: 0 0 30px;
}

.s2tg-contact-form__message {
    text-align: center;
}

.s2tg-contact-form__input_name {
    height: 50px;
    border: 1px solid #282a2e;
    border-radius: 5px;
    width: 100%;
    background: url("user.svg") center left 15px no-repeat, #2c398f;
    background-size: 30px;
    margin-bottom: 20px;
    padding: 0 15px 0 59px;
    font: 16px "Roboto", sans-serif;
    color: #fff;
    transition: 0.3s;
}

.s2tg-contact-form__input_name:focus {
    transition: 0.3s;
    border: 1px solid rgba(255, 241, 198, 0.2);
}

.s2tg-contact-form__input_phone {
    height: 50px;
    border: 1px solid #282a2e;
    border-radius: 5px;
    width: 100%;
    background: url("tel.svg") center left 15px no-repeat, #2c398f;
    background-size: 30px;
    margin-bottom: 20px;
    padding: 0 15px 0 59px;
    font: 16px "Roboto", sans-serif;
    color: #fff;
    transition: 0.3s;
}

.s2tg-contact-form__input_phone:focus {
    transition: 0.3s;
    border: 1px solid rgba(255, 241, 198, 0.2);
}

.s2tg-contact-form__input_file {
    display: none;
}

.s2tg-contact-form__file-button {
    display: flex;
    align-items: center;
    height: 50px;
    border: 1px solid #282a2e;
    border-radius: 5px;
    width: 100%;
    background: url("file.svg") center left 15px no-repeat, #2c398f;
    background-size: 30px;
    margin-bottom: 20px;
    padding: 0 15px 0 59px;
    font: 16px "Roboto", sans-serif;
    color: #757575;
    cursor: pointer;
}

.s2tg-contact-form__button {
    background: #fff1c6;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 25px;
    border: none;
    width: 100%;
    max-width: 200px;
    margin: 0 auto;
    font: 16px "Roboto", sans-serif;
    transition: 0.3s;
    cursor: pointer;
}

.s2tg-contact-form__button:hover {
    transition: 0.3s;
    background: #7156f3;
    color: #fff;
    box-shadow: 0 5px 25px rgba(0, 0, 0, 0.3);
}

.preloader {
    position: relative;
    margin: 0 0 0 45%;
    height: 15px;
    visibility: hidden;
    opacity: 0;
    display: none;
    transition: 0.3s;
}

.preloader_active {
    display: block;
    visibility: visible;
    opacity: 1;
    transition: 0.3s;
}

.preloader:before {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    content: "";
    position: absolute;
    background: #393e46;
    animation: preloader_before 1.8s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

.preloader:after {
    width: 12px;
    height: 12px;
    left: 15%;
    border-radius: 50%;
    content: "";
    position: absolute;
    background: #5f646c;
    animation: preloader_after 1.8s infinite cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes preloader_before {
    0% {
        transform: translateX(0px) rotate(0deg);
    }

    50% {
        transform: translateX(160px) scale(1.5) rotate(264deg);
        background: #00adb5;
        border-radius: 0;
    }

    100% {
        transform: translateX(0px) rotate(0deg);
    }
}

@keyframes preloader_after {
    0% {
        transform: translateX(0px) rotate(0deg);
    }

    50% {
        transform: translateX(-160px) scale(1.5) rotate(-264deg);
        background: #00fff5;
        border-radius: 0;
    }

    100% {
        transform: translateX(0px);
    }
}

@media (max-width: 768px) {
    .form-wrapper {
        padding: 15px;
    }
}

@media (max-width: 480px) {
    .s2tg-contact-form {
        padding: 30px 15px;
    }

    .s2tg-contact-form__title {
        font-size: 16px;
    }
}