// Buttons

.btn {
  position: relative;
  cursor: pointer;
  outline: none;
  display: inline-block;
  text-align: center;
  text-decoration: none;
  font-family: "HelveticaNeue", "Helvetica Neue", Helvetica, Arial, sans-serif;
  line-height: 1;
  font-size: 0.75em;
  font-weight: normal;
  padding: 0.375em 1em;
  border-radius: 0.25em;
  background-color: #f3f3f3;
  background-image: -moz-linear-gradient(top, #ffffff, #e1e1e1);
  background-image: -ms-linear-gradient(top, #ffffff, #e1e1e1);
  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#ffffff), to(#e1e1e1));
  background-image: -webkit-linear-gradient(top, #ffffff, #e1e1e1);
  background-image: -o-linear-gradient(top, #ffffff, #e1e1e1);
  background-image: linear-gradient(top, #ffffff, #e1e1e1);
  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffffff', endColorstr='#e1e1e1', GradientType=0);
  border: 1px solid #dadada;
  border-left: 1px solid #d2d2d2;
  border-right: 1px solid #d2d2d2;
  border-bottom-color: #a9a9a9;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.15), inset 0 1px 1px 0 rgba(255, 255, 255, 0.6);
  text-shadow: 0 1px 0px #ffffff;
}

.btn,
.btn:hover {
  color: #000;
}

.btn:hover {
  filter: none;
  background: none;
  background: #eee;
  text-shadow: 0 1px 0px rgba(255, 255, 255, 0.8);
  text-decoration: none;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.15);
}

// Active
.btn-big.btn-active,
.btn-big.btn-active:hover {
  padding: 0.75em 1.5em;
}

.btn-active,
.btn-active:hover {
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.4) inset;
  color: #555;
  border: none;
  background: none;
  filter: none;
  background-color: #ddd;
  text-shadow: 0 1px 0px rgba(255, 255, 255, 0.8);
  padding: 0.5em 2em 0.5em 2em;
}

// Small
.btn-small {
  padding: 4px 12px;
  font-size: 11px;
}

.btn-small.btn-active {
  padding: 5px 12px;
}

// Big
.btn-big {
  padding: 0.625em 1.5em;
  font-size: 1.25em;
}

// Square
.btn-square {
  -moz-border-radius: 0;
  -webkit-border-radius: 0;
  border-radius: 0;
}

// Round
.btn-round {
  border-radius: 1em;
  border-radius: 0 \0; // ie9 hack
}

// Full
.btn-full {
  width: 100%;
}

// Group
.btn-group {
  display: inline-block;
  margin-right: 0.125em;
  vertical-align: bottom;
}

.btn-group:after {
  content: ".";
  display: block;
  height: 0;
  clear: both;
  visibility: hidden;
}

.btn-group > .btn,
.btn-group > input {
  float: left;
  -moz-border-radius: 0;
  -webkit-border-radius: 0;
  border-radius: 0;
  margin-left: -0.0625em;
}

.btn-group > .btn:first-child {
  border-radius: 0.25em 0 0 0.25em;
}

.btn-group > .btn:last-child {
  border-radius: 0 0.25em 0.25em 0;
}

.btn-group > .btn.btn-round:first-child,
.btn-group > .input-search:first-child {
  border-radius: 1em 0 0 1em;
}

.btn-group > .btn.btn-round:last-child,
.btn-group > .input-search:last-child {
  border-radius: 0 1em 1em 0;
}

// Append
.btn-append {
  margin-left: -0.125em;
  border-radius: 0 0.25em 0.25em 0;
}

// Disabled
.btn.disabled,
.btn[disabled] {
  border: none;
  filter: none;
  background: none;
  background-color: #e9e9e9;
  opacity: 0.6;
  cursor: default;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.6);
}