/* ---------- Base */

body {
    position: relative;
    font-family: 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    color: #1D1D1D;
    }

.container {
    max-width: 480px;
    padding-left: 20px;
    padding-right: 20px;
    margin: 20px auto 0px auto;
    }

h1 {
    font-size: 30px;
    font-weight: bold;
    margin-bottom: 15px;
    line-height: 1.3;
    }

p {
    margin-top: 20px;
    margin-bottom: 40px;
    line-height: 1.4;
    }

strong {
    font-size: 150%;
    font-weight: bold;
    display: block;
    padding-top: 10px;
    }

/* ---------- Helpers */

.is-hidden {
    display: none;
    }

.is-visible {
    display: inherit;
    }

/* ---------- Buttons */

.btn-group {
    display: flex;
    }

.btn-group > * {
    flex: 1;
    }

.btn-group > *:first-child {
    margin-right: 10px;
    }

.btn-group > *:last-child {
    margin-left: 10px;
    }

.btn {
    height: 50px;
    background: white;
    border: none;
    margin-bottom: 20px;
    font: inherit;
    cursor: pointer;
    border-radius: 25px;
    border: 1px solid #1D1D1D;
    padding: 0 20px;
    min-width: 140px;
    }

.btn,
.btn:hover,
.btn:active {
    transition: all 0.25s;
    }

.btn:hover {
    background-color: #1D1D1D;
    color: white;
    }

.btn:active {
    opacity: 0.75;
    }

.btn:focus {
    outline: none;
    }

.btn--block {
    width: 100%;
    }

/* ---------- Form */

input[type="text"] {
    height: 50px;
    width: 100%;
    margin-bottom: 20px;
    border-radius: 2px;
    border: 1px solid #CCC;
    padding: 0 20px;
    font-size: 16px;
    }

form {
    padding-top: 10px;
    margin-bottom: 20px;   
    }

input[type="checkbox"] {
    width: 24px;
    height: 24px;
    margin-right: 16px;
    vertical-align: middle;
    }

input[type="checkbox"] + label {
    line-height: 24px;
    vertical-align: middle;
    }