* {
    padding:0;
    margin:0;
    vertical-align:baseline;
    list-style:none;
    border:0;
    box-sizing: border-box;
}

:root {
    --white: #FFF;
    --background: #F2F3F5;
    --gray-line: #DCDDE0;
    --text: #141414;
    --text-highlight: #000000;
    --text-discreet: #919191;
    --title: #2E384D;
    --red: #E83F5B;
    --green: #2a862e;
    --blue: #1E88E5;
    --blue-dark: #4953B8;
    --collection: #666666;
    --border: #e0e0e0;
}


@media(max-width: 720px){
    html {
        font-size: 95%;
    }
    body {
        padding: 0 1rem;
    }
    .collection {
        flex-wrap: wrap;
    }
    .collection div {
        width: 100%;
    }
}

body {
    font-family: 'Cantarell', sans-serif;
    background: var(--background);
    color: var(--text);
    min-width: 300px;
    user-select: none;
}

body, input, textarea, button {
}



i.large {
    font-size: 6rem;
    color: var(--white)
}

p {
    margin: 0.9rem 0;
}

input, textarea {
    background-color: transparent;
    border-bottom: 1px solid var(--text);
    border-radius: 0;
    font-size: 16px;
    height: 3rem;
    margin: 0 0 8px 0;
    outline: none;
    transition: box-shadow .3s, border .3s, -webkit-box-shadow .3s;
    width: 100%;
}

textarea { 
    overflow: auto;
    line-height: normal;
    overflow-y: hidden;
    padding: .8rem 0 .8rem 0;
    min-height: 3rem;
}

h4 {
    font-size: 2.28rem;
    line-height: 110%;
    font-weight: 500;
    margin: 1.52rem 0 .912rem 0;
}

::placeholder {
    color:var(--text-discreet);
    /* font-size:medium; */
}

.container {
    margin: 3rem auto;
    /* height: 100vh; */
    max-width: 700px;
}

.collection {
    display: flex;
    min-height: 14rem;
    margin: 0.4rem 0 3rem;
    align-items: center;
    border-radius: 5px;
    border: 1px solid var(--border);
}
.collection > div {
    align-self: stretch;
    padding: 1rem;
}
.collection div:first-child {
    align-items:center;
    justify-content: center;
    background-color:var(--collection);
    display: flex;
    min-width: 200px;
}
.collection div:last-child {
    flex: 1;
}

.btn {
    font-size: 1.1rem;
    background-color: var(--green);
    border-radius: 2px;
    color: #fff;
    cursor: pointer;
    padding: 6px 16px;
    text-align: center;
    text-decoration: none;
    transition: filter .2s ease-out;
    vertical-align: middle;
    outline: 0;
    min-width: 15rem;
    box-shadow: 0 3px 3px 0 rgba(0,0,0,0.14), 0 1px 7px 0 rgba(0,0,0,0.12), 0 3px 1px -1px rgba(0,0,0,0.2);
}

.btn:focus,
.btn:hover {
    filter: brightness(110%) saturate(110%);
}

.iniciar {
    background-color: var(--blue)
}

.close {
    background-color: transparent;
    position: absolute;
    top: 5px;
    right: 5px;
}