/* main.css
   ========================================================================== */

/* base */
*,
::before,
::after {
  -webkit-box-sizing: border-box;
  box-sizing: border-box;
}

html {
  font-size: 62.5%;
  line-height: 1.5;
}

body {
  margin: 0;
  background-color: #fafafa;
  font-family: Verdana, Geneva, sans-serif;
  font-size: 1.6rem;
  line-height: 1.5;
  color: #333;
  padding: 2em;
}

h2 {
  margin-top: 2.4rem;
  margin-bottom: 0;
  font-family: Georgia, serif;
  font-size: 3.125rem;
  line-height: 1.536;
}

p:first-child {
  margin-top: 0;
}

/* container */
.o-container {
  max-width: 728px;
  padding-right: 2.4rem;
  padding-left: 2.4rem;
  width: 100%;
  margin-right: auto;
  margin-left: auto;
}

/* buttons */
.c-btn {
  position: relative;
  z-index: 0;
  display: inline-block;
  -webkit-transform: translate3d(0, -0.25em, 0);
  transform: translate3d(0, -0.25em, 0);
  padding: 0.75em 1.5em;
  font-size: 1.6rem;
  line-height: 1.5;
  border: 0;
  border-radius: 0.25em;
  background-color: #f0f0f0;
  vertical-align: top;
  text-decoration: none;
  font-weight: 700;
  color: #e91e63;
  cursor: pointer;
  -webkit-transition: .2s;
  transition: .2s;
}

.c-btn::before,
.c-btn::after {
  content: "";
  position: absolute;
  z-index: -1;
  top: 0;
  right: 0;
  bottom: 0;
  left: 0;
  border-radius: inherit;
  -webkit-box-shadow: 0 0.25em 0 0 #ccc;
  box-shadow: 0 0.25em 0 0 #ccc;
  -webkit-transition: .2s;
  transition: .2s;
}

.c-btn::after {
  -webkit-box-shadow: 0 0.25em 0 0 #aa1145;
  box-shadow: 0 0.25em 0 0 #aa1145;
  background-color: #e91e63;
  visibility: hidden;
  opacity: 0;
}

.c-btn[aria-expanded="true"],
.c-btn:focus,
.c-btn:hover,
.c-btn:active {
  color: #fff;
}

.c-btn[aria-expanded="true"]::after,
.c-btn:focus::after,
.c-btn:hover::after,
.c-btn:active::after {
  visibility: visible;
  opacity: 1;
}

.c-btn--unstyled {
  position: static;
  -webkit-transform: none;
  transform: none;
  padding: 0;
  border-radius: 0;
  background: none;
  font: inherit;
  line-height: inherit;
  color: inherit;
}

.c-btn--unstyled::before,
.c-btn--unstyled::after {
  content: none;
}

/* dropdowns */
.c-dropdown {
  display: inline-block;
  vertical-align: top;
}

.c-dropdown__menu {
  max-height: 20rem;
  margin: 0;
  padding-left: 0;
  border-radius: 0.25em;
  visibility: visible;
  opacity: 1;
  overflow: hidden;
  list-style: none;
  transition: max-height .2s, visibility 0s, opacity 0s;
}

.c-dropdown__menu[aria-hidden="true"] {
  max-height: 0;
  visibility: hidden;
  opacity: 0;
  transition: max-height .2s, visibility .2s .2s, opacity .2s .2s;
}

.c-dropdown__link {
  display: block;
  margin: .25em;
  padding: 0.5em 1.5em;
  text-decoration: none;
  font-size: 1.4rem;
  font-weight: 700;
  color: #e91e63;
  background-color: #f0f0f0;
}

/* utilities */
.u-p {
  margin-top: 2.4rem;
}