html, body {
    height: 100%;
}

body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    font-size: 15px;
    background: #fafafa;
}

* {
    box-sizing: border-box;
}

.mt-1 {
    margin-top: .25rem;
}

.mt-2 {
    margin-top: .5rem;
}

.mt-3 {
    margin-top: 1rem;
}

.text-center {
    text-align: center;
}

.text-small {
    font-size: .75rem;
}

.button {
    background: #529341;
    color:#fff;
    padding: .5rem;
    border: 0;
    border-radius: 4px;
    cursor: pointer;
}

.invalid {
    border: 1px solid red !important;
}

.form-group {
    margin-bottom: .5em;
}

.form-group > label {
    display: block;
}

.form-group input, .form-group button, .form-group textarea {
    width: 100%;
    border: 1px solid #eee;
    padding: 1em;
}

.form-group button {
    background: #529341;
    color:#fff;
    cursor: pointer;
}

#progress-bar {
    background: #529341;
    height: 12px;
    width: 0;
}

#drop-area {
    width: 40%;
}

.modal {
    display: none;
    position: fixed;
    z-index: 1;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto; 
    background-color: rgb(0,0,0);
    background-color: rgba(0,0,0,0.6);
}

.modal-content {
    background-color: #fefefe;
    margin: 25% auto;
    padding: 20px;
    border: 1px solid #888;
    border-radius: 4px;
    width: 50%;
}

.modal-data {
    text-align: center;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
}

.close:hover,
.close:focus {
    color: black;
    text-decoration: none;
    cursor: pointer;
}

@media screen and (max-width: 720px) {
    #drop-area {
        width: 100%;
    }

    .modal-content {
        width: 80%;
    }
}