body {
    font-size: 26px;
}

body {
    background-color: #ffffff;
}

.sign-up-container {
    width: 100%;
    padding-top: 280px;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 300;
}

.paper {
    width: 85%;
    box-sizing: border-box;
    margin: 0 auto;
    position: relative;
    top: -205px;
    padding: 1rem 1.4rem 125px 1.4rem;
    background: #ffffff;
    background: -webkit-linear-gradient(top, #f1f1f1 43%, #ffffff 100%);
    background: linear-gradient(to bottom, #f1f1f1 43%, #eee2b4 100%);
    color: #db4344;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    border-radius: 4px;
}

h1 {
    margin-bottom: 1rem;
    margin-top: 0;
    text-align: center;
    font-size: 1em;
    font-weight: 300;
}

.text-input,
.button {
    box-sizing: border-box;
    padding: 0.8em 0.67em;
    margin-bottom: 0.5rem;
    background: transparent;
    border: none;
    border-radius: 2em;
    outline: none;
}

.button {
    border: 1px solid #999999;
    -webkit-transition: background 0.1s, color 0.1s;
    transition: background 0.1s, color 0.1s;
}

.button:hover {
    background: #db4344;
    color: #fef8e1;
}

.text-input {
    background: #ffffff;
    color: #333333;
}

.text-input::-webkit-input-placeholder {
    color: inherit;
    font-style: italic;
}

.text-input::-moz-placeholder {
    color: inherit;
    font-style: italic;
}

.text-input:-ms-input-placeholder {
    color: inherit;
    font-style: italic;
}

.text-input::placeholder {
    color: inherit;
    font-style: italic;
}

.sign-up-form {
    width: 100%;
}

.sign-up-form * {
    width: 100%;
}

.envelope {
    position: relative;
    width: 400px;
    height: 250px;
    margin: auto;
    background: #fa5b5c;
    border-radius: 24px;
}

.envelope:before {
    content: '';
    display: block;
    position: absolute;
    top: -240px;
    width: 0;
    height: 0;
    z-index: -1;
    border-width: 125px 200px;
    border-color: transparent;
    border-style: solid;
    border-bottom-color: #fa5b5c;
    border-radius: 24px;
}

.envelope:after {
    content: '';
    display: block;
    position: absolute;
    bottom: 0;
    width: 0;
    height: 0;
    pointer-events: none;
    border-width: 125px 200px;
    border-style: solid;
    border-color: #db4344;
    border-top-color: transparent;
    border-radius: 24px;
}

.envelope .bottom-flap {
    width: 400px;
    height: 250px;
    display: block;
    position: absolute;
    top: 0;
    z-index: 1;
    border-radius: 24px;
    overflow: hidden;
    pointer-events: none;
}

.envelope .bottom-flap:after {
    content: '';
    display: block;
    position: absolute;
    width: 400px;
    height: 400px;
    top: 40%;
    border-radius: 24px;
    background: #fa5b5c;
    -webkit-transform: scaleY(0.7) rotate(45deg);
    transform: scaleY(0.7) rotate(45deg);
    box-shadow: 2px 2px 8px rgba(0, 0, 0, 0.1);
}

.thanks-text {
    position: absolute;
    width: 100%;
    top: 320px;
    z-index: -1;
    text-align: center;
    font-weight: 500;
    font-size: 30px;
}

.submitted .paper {
    -webkit-animation: paper-in 0.8s ease-out;
    animation: paper-in 0.8s ease-out;
    -webkit-animation-fill-mode: forwards;
    animation-fill-mode: forwards;
}

.submitted.sign-up-container {
    overflow: hidden;
}

.submitted .envelope {
    -webkit-animation: fly-away 0.5s ease-in;
    animation: fly-away 0.5s ease-in;
    -webkit-animation-delay: 1.3s;
    animation-delay: 1.3s;
    -webkit-animation-fill-mode: forwards;
    animation-fill-mode: forwards;
}

.submitted .envelope:before {
    -webkit-animation: fold 0.5s ease-in;
    animation: fold 0.5s ease-in;
    -webkit-animation-delay: 0.7s;
    animation-delay: 0.7s;
    -webkit-animation-fill-mode: forwards;
    animation-fill-mode: forwards;
}

@-webkit-keyframes paper-in {
    30% {
        -webkit-transform: translateY(-80px);
        transform: translateY(-80px);
        padding-bottom: 125px;
    }

    to {
        top: 10px;
        padding-bottom: 0;
    }
}

@keyframes paper-in {
    30% {
        -webkit-transform: translateY(-80px);
        transform: translateY(-80px);
        padding-bottom: 125px;
    }

    to {
        top: 10px;
        padding-bottom: 0;
    }
}

@-webkit-keyframes fly-away {
    to {
        -webkit-transform: translateX(200%) rotate(10deg);
        transform: translateX(200%) rotate(10deg);
        opacity: 0;
    }
}

@keyframes fly-away {
    to {
        -webkit-transform: translateX(200%) rotate(10deg);
        transform: translateX(200%) rotate(10deg);
        opacity: 0;
    }
}

@-webkit-keyframes fold {
    from {
        -webkit-transform-origin: bottom center;
        transform-origin: bottom center;
        z-index: 10;
    }

    to {
        z-index: 10;
        -webkit-transform-origin: bottom center;
        transform-origin: bottom center;
        -webkit-transform: rotateX(-180deg) translateY(10px);
        transform: rotateX(-180deg) translateY(10px);
        border-bottom-color: #5eb6e0;
    }
}

@keyframes fold {
    from {
        -webkit-transform-origin: bottom center;
        transform-origin: bottom center;
        z-index: 10;
    }

    to {
        z-index: 10;
        -webkit-transform-origin: bottom center;
        transform-origin: bottom center;
        -webkit-transform: rotateX(-180deg) translateY(10px);
        transform: rotateX(-180deg) translateY(10px);
        border-bottom-color: #fa5b5c;
    }
}

.reset-button {
    display: block;
    padding: 0.6em 1em;
    margin-top: 50px;
    margin-left: auto;
    margin-right: auto;
    font-size: 12px;
    background: transparent;
    border: 1px solid black;
}

.reset-button:hover {
    color: white;
    background: black;
}