input:not([type=submit]), textarea {
    display: block;
    width: 100%;
    margin-bottom: 1rem;
    padding: 0.25rem;
    font-size: 1rem;
    color: black;
    border: 0;
    outline: 0;
    background-color: #e6e6e6;
    transition: 0.2s ease-in-out;
    transition-property: background-color, box-shadow;
}
input:not([type=submit])::-moz-placeholder, textarea::-moz-placeholder {
    color: rgba(22, 22, 22, 0.5);
    opacity: 1;
    -moz-transition: color 0.2s ease-in-out;
    transition: color 0.2s ease-in-out;
}
input:not([type=submit]):-ms-input-placeholder, textarea:-ms-input-placeholder {
    color: rgba(22, 22, 22, 0.5);
    opacity: 1;
    -ms-transition: color 0.2s ease-in-out;
    transition: color 0.2s ease-in-out;
}
input:not([type=submit])::placeholder, textarea::placeholder {
    color: rgba(22, 22, 22, 0.5);
    opacity: 1;
    transition: color 0.2s ease-in-out;
}
input:not([type=submit]):focus::-moz-placeholder, textarea:focus::-moz-placeholder {
    opacity: 1;
}
input:not([type=submit]):focus:-ms-input-placeholder, textarea:focus:-ms-input-placeholder {
    opacity: 1;
}
input:not([type=submit]):focus::placeholder, textarea:focus::placeholder {
    opacity: 1;
}
input:not([type=submit]):-moz-placeholder-shown, textarea:-moz-placeholder-shown {
    background-color: #808080;
}
input:not([type=submit]):-ms-input-placeholder, textarea:-ms-input-placeholder {
    background-color: #808080;
}
input:not([type=submit]):placeholder-shown, textarea:placeholder-shown {
    background-color: #fff;
}
input:not([type=submit]):not(:-moz-placeholder-shown), textarea:not(:-moz-placeholder-shown) {
    background-color: #e6e6e6;
}
input:not([type=submit]):not(:-ms-input-placeholder), textarea:not(:-ms-input-placeholder) {
    background-color: #e6e6e6;
}
input:not([type=submit]):not(:placeholder-shown), textarea:not(:placeholder-shown) {
    background-color: #fff;
}
input:not([type=submit]):not(:focus):not(:-moz-placeholder-shown):valid, textarea:not(:focus):not(:-moz-placeholder-shown):valid {
    box-shadow: inset 0 0 0 0.125rem #00a34a;
}
input:not([type=submit]):not(:focus):not(:-ms-input-placeholder):valid, textarea:not(:focus):not(:-ms-input-placeholder):valid {
    box-shadow: inset 0 0 0 0.125rem #00a34a;
}
input:not([type=submit]):not(:focus):not(:placeholder-shown):valid, textarea:not(:focus):not(:placeholder-shown):valid {
    box-shadow: inset 0 0 0 0.125rem #00a34a;
}
input:not([type=submit]):not(:focus):not(:-moz-placeholder-shown):invalid, textarea:not(:focus):not(:-moz-placeholder-shown):invalid {
    box-shadow: inset 0 0 0 0.125rem #208484;
}
input:not([type=submit]):not(:focus):not(:-ms-input-placeholder):invalid, textarea:not(:focus):not(:-ms-input-placeholder):invalid {
    box-shadow: inset 0 0 0 0.125rem #208484;
}
input:not([type=submit]):not(:focus):not(:placeholder-shown):invalid, textarea:not(:focus):not(:placeholder-shown):invalid {
    box-shadow: inset 0 0 0 0.125rem #208484;
}
input:not([type=submit]):-moz-placeholder-shown:invalid:not(:focus), input:not([type=submit]):-moz-placeholder-shown:valid:not(:focus), textarea:-moz-placeholder-shown:invalid:not(:focus), textarea:-moz-placeholder-shown:valid:not(:focus) {
    box-shadow: inset 0 0 0 0.125rem #808080;
}
input:not([type=submit]):-ms-input-placeholder:invalid:not(:focus), input:not([type=submit]):-ms-input-placeholder:valid:not(:focus), textarea:-ms-input-placeholder:invalid:not(:focus), textarea:-ms-input-placeholder:valid:not(:focus) {
    box-shadow: inset 0 0 0 0.125rem #808080;
}
input:not([type=submit]):placeholder-shown:invalid:not(:focus), input:not([type=submit]):placeholder-shown:valid:not(:focus), input:not([type=submit]):focus, textarea:placeholder-shown:invalid:not(:focus), textarea:placeholder-shown:valid:not(:focus), textarea:focus {
    box-shadow: inset 0 0 0 0.125rem #808080;
}
input:not([type=submit]):focus, textarea:focus {
    background-color: #fff;
}
form:invalid input[type=submit] {
    opacity: 0.5;
    cursor: not-allowed;
}
form:valid input[type=submit] {
    opacity: 1;
    cursor: pointer;
}
* {
    box-sizing: border-box;
}
html, body {
    height: 100%;
    font-size: 16px;
}
body {
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: sans-serif;
    color: #161616;
    background: linear-gradient(to bottom right, white, #808080) fixed;
}
form {
    position: relative;
    width: 16rem;
    margin: 1rem auto;
    padding: 1rem;
    text-align: center;
    border-radius: 0.5rem;
    background: #e6e6e6;
    box-shadow: 0 0.25rem 1rem rgba(128, 128, 128, 0.25);
    overflow: hidden;
}
form::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 0.5rem;
    background-color: #0e8484;
}
fieldset {
    border: none;
    color: #808080;
    font-size: 0.75rem;
}
label {
    display: block;
    font-size: 0.75rem;
    text-align: left;
    letter-spacing: 0.05em;
    margin-bottom: 0.25rem;
}
input, textarea {
    border-radius: 0.25rem;
}
textarea {
    min-height: 2rem;
    resize: vertical;
}
input[type=submit] {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    color: #e6e6e6;
    font-size: 0.75rem;
    text-transform: uppercase;
    border: none;
    background: linear-gradient(180deg, #0e8484, #0abbe6);
    box-shadow: 0 0.0625rem 0.5rem rgba(128, 128, 128, 0.25);
    transition: all 0.25s ease-in-out;
}
input[type=submit]:hover {
    box-shadow: 0 0.125rem 0.5rem rgba(128, 128, 128, 0.5);
    transform: translateY(-0.0625rem);
}
.qr-image {
    padding: 10px;
    text-align: center;
}