*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family:Verdana;
}
body{
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    background:url(../img/backgr_FORM.jpg) no-repeat;
    background-size: cover;
    background-position: center;
}
.form{
    width: 420px;
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, .2);
    backdrop-filter: blur(20px);
    box-shadow: 0 0 10px rgba(0, 0, 0, .2);
    color: #fff;
    padding: 30px 40px;
    border-radius: 10px;
}
.form h1{
    font-size: 36px;
    text-align: center;
}

.form .caja {
    position: relative;
    width: 100%;
    height: 50px;
    margin: 30px 0;
}

.caja input {
    width: 100%;
    height: 100%;
    background: transparent;
    border: none;
    outline: none;
    border: 1px solid rgba(255, 255, 255, 2);
    border-radius: 40px;
    font-size: 16px;
    color: #fff;
    padding: 20px 45px 20px 20px;
}

.caja input::placeholder {
    color: #fff;
}

.caja i {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 20px;
}

.aviso {
    display: flex;
    justify-content: space-between;
    font-size: 14.5px;
    margin: -15px 0 15px;
}

.aviso label input{
    color: #fff;
    margin-right: 3px;
}

.form .btn{
    width: 50%;
    height: 45px;
    background: #fff;
    border: none;
    border-radius: 40px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 1);
    cursor: pointer;
    color: #333;
    font-weight: 600;
}