input::after,
input::before,
select::after,
select::before,
textarea::after,
textarea::before {
  box-sizing: border-box;
}

.button-container {
  text-align: center;
}

fieldset {
  margin: 0 0 3rem;
  padding: 0;
  border: none;
}

.form-radio,
.form-group {
  position: relative;
  margin-top: 2.25rem;
  margin-bottom: 2.25rem;
}

.form-inline > .form-group,
.form-inline > .btn {
  display: inline-block;
  margin-bottom: 0;
}

.form-help {
  margin-top: 0.125rem;
  margin-left: 0.125rem;
  color: #b3b3b3;
  font-size: 0.8rem;
}

.checkbox .form-help,
.form-radio .form-help,
.form-group .form-help {
  position: absolute;
  width: 100%;
}

.checkbox .form-help {
  position: relative;
  margin-bottom: 1rem;
}

.form-radio .form-help {
  padding-top: 0.25rem;
  margin-top: -1rem;
}

.form-group input {
  height: 1.9rem;
}

.form-group textarea {
  resize: none;
}

.form-group select {
  width: 100%;
  font-size: 1rem;
  height: 1.6rem;
  padding: 0.125rem 0.125rem 0.0625rem;
  background: none;
  border: none;
  line-height: 1.6;
  box-shadow: none;
}

.form-group .control-label {
  position: absolute;
  top: 0.25rem;
  pointer-events: none;
  padding-left: 0.125rem;
  z-index: 1;
  color: #b3b3b3;
  font-size: 1rem;
  font-weight: normal;
  -webkit-transition: all 0.28s ease;
  transition: all 0.28s ease;
}

.form-group .bar {
  position: relative;
  border-bottom: 0.0625rem solid #999;
  display: block;
}

.form-group .bar::before {
  content: "";
  height: 0.125rem;
  width: 0;
  left: 50%;
  bottom: -0.0625rem;
  position: absolute;
  background: #337ab7;
  -webkit-transition:
    left 0.28s ease,
    width 0.28s ease;
  transition:
    left 0.28s ease,
    width 0.28s ease;
  z-index: 2;
}

.form-group input,
.form-group textarea {
  display: block;
  background: none;
  padding: 0.125rem 0.125rem 0.0625rem;
  font-size: 1rem;
  border-width: 0;
  border-color: transparent;
  line-height: 1.9;
  width: 100%;
  color: transparent;
  -webkit-transition: all 0.28s ease;
  transition: all 0.28s ease;
  box-shadow: none;
}

.form-group input[type="file"] {
  line-height: 1;
}

.form-group input[type="file"] ~ .bar {
  display: none;
}

.form-group select,
.form-group input:focus,
.form-group input:valid,
.form-group input.form-file,
.form-group input.has-value,
.form-group textarea:focus,
.form-group textarea:valid,
.form-group textarea.form-file,
.form-group textarea.has-value {
  color: #333;
}

.form-group select ~ .control-label,
.form-group input:focus ~ .control-label,
.form-group input:valid ~ .control-label,
.form-group input.form-file ~ .control-label,
.form-group input.has-value ~ .control-label,
.form-group textarea:focus ~ .control-label,
.form-group textarea:valid ~ .control-label,
.form-group textarea.form-file ~ .control-label,
.form-group textarea.has-value ~ .control-label {
  font-size: 0.8rem;
  color: gray;
  top: -1rem;
  left: 0;
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
}

.form-group select:focus ~ .control-label,
.form-group input:focus ~ .control-label,
.form-group textarea:focus ~ .control-label {
  color: #337ab7;
}

.form-group select:focus ~ .bar::before,
.form-group input:focus ~ .bar::before,
.form-group textarea:focus ~ .bar::before {
  width: 100%;
  left: 0;
}

.checkbox label,
.form-radio label {
  position: relative;
  cursor: pointer;
  padding-left: 2rem;
  text-align: left;
  color: #333;
  display: block;
}

.checkbox input,
.form-radio input {
  width: auto;
  opacity: 0.00000001;
  position: absolute;
  left: 0;
}

.radio {
  margin-bottom: 1rem;
}

.radio .helper {
  position: absolute;
  top: -0.25rem;
  left: -0.25rem;
  cursor: pointer;
  display: block;
  font-size: 1rem;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  color: #999;
}

.radio .helper::before,
.radio .helper::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  margin: 0.25rem;
  width: 1rem;
  height: 1rem;
  -webkit-transition: -webkit-transform 0.28s ease;
  transition: -webkit-transform 0.28s ease;
  transition: transform 0.28s ease;
  transition:
    transform 0.28s ease,
    -webkit-transform 0.28s ease;
  border-radius: 50%;
  border: 0.125rem solid currentColor;
}

.radio .helper::after {
  -webkit-transform: scale(0);
  transform: scale(0);
  background-color: #337ab7;
  border-color: #337ab7;
}

.radio label:hover .helper {
  color: #337ab7;
}

.radio input:checked ~ .helper::after {
  -webkit-transform: scale(0.5);
  transform: scale(0.5);
}

.radio input:checked ~ .helper::before {
  color: #337ab7;
}

.checkbox {
  margin-top: 3rem;
  margin-bottom: 1rem;
}

.checkbox .helper {
  color: #999;
  position: absolute;
  top: 0;
  left: 0;
  width: 1rem;
  height: 1rem;
  z-index: 0;
  border: 0.125rem solid currentColor;
  border-radius: 0.0625rem;
  -webkit-transition: border-color 0.28s ease;
  transition: border-color 0.28s ease;
}

.checkbox .helper::before,
.checkbox .helper::after {
  position: absolute;
  height: 0;
  width: 0.2rem;
  background-color: #337ab7;
  display: block;
  -webkit-transform-origin: left top;
  transform-origin: left top;
  border-radius: 0.25rem;
  content: "";
  -webkit-transition:
    opacity 0.28s ease,
    height 0s linear 0.28s;
  transition:
    opacity 0.28s ease,
    height 0s linear 0.28s;
  opacity: 0;
}

.checkbox .helper::before {
  top: 0.65rem;
  left: 0.38rem;
  -webkit-transform: rotate(-135deg);
  transform: rotate(-135deg);
  box-shadow: 0 0 0 0.0625rem #fff;
}

.checkbox .helper::after {
  top: 0.3rem;
  left: 0;
  -webkit-transform: rotate(-45deg);
  transform: rotate(-45deg);
}

.checkbox label:hover .helper {
  color: #337ab7;
}

.checkbox input:checked ~ .helper {
  color: #337ab7;
}

.checkbox input:checked ~ .helper::after,
.checkbox input:checked ~ .helper::before {
  opacity: 1;
  -webkit-transition: height 0.28s ease;
  transition: height 0.28s ease;
}

.checkbox input:checked ~ .helper::after {
  height: 0.5rem;
}

.checkbox input:checked ~ .helper::before {
  height: 1.2rem;
  -webkit-transition-delay: 0.28s;
  transition-delay: 0.28s;
}

.radio + .radio,
.checkbox + .checkbox {
  margin-top: 1rem;
}

.has-error .legend.legend,
.has-error.form-group .control-label.control-label {
  color: #d9534f;
}

.has-error.form-group .form-help,
.has-error.form-group .helper,
.has-error.checkbox .form-help,
.has-error.checkbox .helper,
.has-error.radio .form-help,
.has-error.radio .helper,
.has-error.form-radio .form-help,
.has-error.form-radio .helper {
  color: #d9534f;
}

.has-error .bar::before {
  background: #d9534f;
  left: 0;
  width: 100%;
}

.button {
  position: relative;
  background: currentColor;
  border: 1px solid currentColor;
  font-size: 1.1rem;
  color: #546e7a;
  margin: 3rem 0;
  padding: 0.75rem 3rem;
  cursor: pointer;
  -webkit-transition:
    background-color 0.28s ease,
    color 0.28s ease,
    box-shadow 0.28s ease;
  transition:
    background-color 0.28s ease,
    color 0.28s ease,
    box-shadow 0.28s ease;
  overflow: hidden;
  box-shadow:
    0 2px 2px 0 rgba(0, 0, 0, 0.14),
    0 3px 1px -2px rgba(0, 0, 0, 0.2),
    0 1px 5px 0 rgba(0, 0, 0, 0.12);
}

.button span {
  color: #fff;
  position: relative;
  z-index: 1;
}

.button::before {
  content: "";
  position: absolute;
  background: #071017;
  border: 50vh solid #1d4567;
  width: 30vh;
  height: 30vh;
  border-radius: 50%;
  display: block;
  top: 50%;
  left: 50%;
  z-index: 0;
  opacity: 1;
  -webkit-transform: translate(-50%, -50%) scale(0);
  transform: translate(-50%, -50%) scale(0);
}

.button:hover {
  box-shadow:
    0 6px 10px 0 rgba(0, 0, 0, 0.14),
    0 1px 18px 0 rgba(0, 0, 0, 0.12),
    0 3px 5px -1px rgba(0, 0, 0, 0.2);
}

.button:active::before,
.button:focus::before {
  -webkit-transition:
    opacity 0.28s ease 0.364s,
    -webkit-transform 1.12s ease;
  transition:
    opacity 0.28s ease 0.364s,
    -webkit-transform 1.12s ease;
  transition:
    transform 1.12s ease,
    opacity 0.28s ease 0.364s;
  transition:
    transform 1.12s ease,
    opacity 0.28s ease 0.364s,
    -webkit-transform 1.12s ease;
  -webkit-transform: translate(-50%, -50%) scale(1);
  transform: translate(-50%, -50%) scale(1);
  opacity: 0;
}

.button:focus {
  outline: none;
}