body {
    background-size: cover;
    background-position-y: bottom;
    background-repeat: no-repeat;
    background-position-x: center;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    /* Overlay preto com 50% de opacidade */
}

body * {
    z-index: 1;
}

.form-control {
    display: block;
    width: 100%;
    padding: .375rem .75rem;
    font-size: 1rem;
    line-height: 1.5;
    color: #495057;
    background-color: #fff;
    background-clip: padding-box;
    border: 1px solid #ced4da;
    transition: border-color .15s ease-in-out, box-shadow .15s ease-in-out;
    border-radius: 20px;
    text-align: center;
    outline: none;
    font-family: 'Roboto', sans-serif;
    font-weight: 100;
    color: #4c4c4c;

}

.form-control:focus {
    outline: 0;
    border-radius: 70px;
    outline-style: solid;
    box-shadow: 3px 2px 22px -4px #0e32de;
}

.container-login {
    width: 230px;
}

.form-group {
    margin-bottom: 1rem;
    position: relative;
    align-items: center;
    display: flex;
}

.form-group img {
    position: absolute;
    left: 5px;
    width: 1rem;
    padding-left: 10px;
    margin: auto auto;
    display: flex;
    border-right: 1px solid #ccc;
    padding-right: 5px;
    transition: all 0.5s;
}

.login-title {
    font-family: 'Do Hyeon', sans-serif;
    font-size: 26px;
    color: #fff;
    line-height: 1.2;
    text-align: center;
    width: 100%;
    display: block;
    letter-spacing: 1px;
}

button {
    outline: none !important;
    border: none;
    background: transparent;
    cursor: pointer;
}

.form-btn {
    font-family: Montserrat-Bold;
    font-size: 18px;
    line-height: 1.5;
    color: #e0e0e0;
    width: 100%;
    height: 50px;
    border-radius: 25px;
    background: #323138;
    display: -webkit-box;
    display: -webkit-flex;
    display: -moz-box;
    display: -ms-flexbox;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0 25px;
    -webkit-transition: all 0.4s;
    -o-transition: all 0.4s;
    -moz-transition: all 0.4s;
    transition: all 0.4s;
    position: relative;
    z-index: 1;
    box-shadow: 3px 1px 10px -2px #000;
}

.form-btn:hover,
.form-btn:focus {
    color: #ffffff;
}

.form-btn:hover:before,
.form-btn:focus:before {
    opacity: 1;
}

.form-btn::before {
    content: "";
    display: block;
    position: absolute;
    z-index: -1;
    width: 100%;
    height: 100%;
    border-radius: 25px;
    top: 0;
    left: 0;
    background: #005bea;
    background: -webkit-linear-gradient(left, #005bea, #00c6fb);
    background: -o-linear-gradient(left, #005bea, #00c6fb);
    background: -moz-linear-gradient(left, #005bea, #00c6fb);
    background: linear-gradient(left, #005bea, #00c6fb);
    -webkit-transition: all 0.4s;
    -o-transition: all 0.4s;
    -moz-transition: all 0.4s;
    transition: all 0.4s;
    opacity: 0;
}

.form-group:focus-within img {
    padding-left: 5px;
}

form {
    height: 100vh;
    margin: 0;
    padding: 0;
}

.login-base {
    margin: auto auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
}

.login-base>img {
    max-width: 250px;
    margin-top: -100px;
    margin-bottom: 30px;
}

::placeholder {
    /* Chrome, Firefox, Opera, Safari 10.1+ */
    color: black;
    opacity: 1;
    /* Firefox */
}

:-ms-input-placeholder {
    /* Internet Explorer 10-11 */
    color: black;
}

::-ms-input-placeholder {
    /* Microsoft Edge */
    color: black;
}