html {
 
    background-color: #efefef;
    font-family: 'Open Sans', sans-serif;
    font-size: 16px;
    
}

body {
    
    background-color: #efefef;
    color: #555;

}

/* Main Box */
.main-box {

    background-color: #fff;
    border-radius: 5px;
    box-shadow: 1px 1px 4px 0px rgba(0, 0, 0, .1);
    margin: 3rem auto 1rem auto;
    max-width: 450px;
    padding: 3rem;

}

/* App Header */
.app-header {

    margin: 1rem 0 2rem 0;

}
.app-header__brand {

    display: block;
    height: 30px;

}

/* App Footer */
.app-footer {
    
    margin-bottom: -1rem;
    text-align: center;
    
}
.app-footer p {

    margin: 0 0 1rem 0;

}

/* App Content */
.app-content {

    padding-bottom: 2rem;

}

/* Content Header */
.content-header__title {

    font-size: 1.8rem;
    font-weight: 700;
    margin: 0 0 2rem 0;

}
.content-header__subtitle {

    font-size: 1rem;

}

/* Form Field */
.form-field {

    margin-bottom: 1rem;

}
.form-field__label {

    display: block;
    margin: 0 0 .2rem 0;

}
.form-field__input {
    
    border: 1px solid #ccc;
    border-radius: 5px;
    display: block;
    width: 100%;
    padding: .6rem .8rem;
    
}
.form-field__input:focus {

    box-shadow: 0 0 3px 3px rgb(245, 239, 83)
;
    outline: none;

}

/* Buttons */
.buttons {

    margin-bottom: 1rem;
    padding-top: 1rem;

}

/* Button */
.button {
    
    background-color: #57c4c3;
    border: 0 none;
    border-radius: 5px;
    color: #fff;
    font-weight: bold;
    overflow: hidden;
    padding: .6rem 1.2rem;
    position: relative;
    text-transform: uppercase;
    
}
.button::after {
    
    background-color: #fff;
    content: '';
    display: block;
    left: 0;
    height: 100%;
    opacity: 0;
    position: absolute;
    top: 0;
    transition: all .1s linear;
    width: 100%;

}
.button:hover::after {

    opacity: .2;

}

.button--full-width {

    width: 100%;

}