.tagline {
  font-size: 1.5em;
  line-height: 1.35;
  margin-bottom: 0.4em;
}

/* ---- button ---- */

.button {
  display: inline-block;
  padding: 0.5em 1.0em;
  background: #EEE;
  border: none;
  border-radius: 7px;
  background-image: linear-gradient( to bottom, hsla(0, 0%, 0%, 0), hsla(0, 0%, 0%, 0.2) );
  color: #222;
  font-weight: 500;
  text-shadow: 0 1px white;
  cursor: pointer;
}

.button:hover {
  background-color: #8CF;
  text-shadow: 0 1px hsla(0, 0%, 100%, 0.5);
  color: #222;
}

.button:active,
.button.is-checked {
  background-color: #28F;
}

.button.is-checked {
  color: white;
  text-shadow: 0 -1px hsla(0, 0%, 0%, 0.8);
}

.button:active {
  box-shadow: inset 0 1px 10px hsla(0, 0%, 0%, 0.8);
}

/* hide radio inputs */
.button input[type="radio"] { display: none; }

/* ---- button-group ---- */

.button-group:after {
  content: '';
  display: block;
  clear: both;
}

.button-group .button {
  float: left;
  border-radius: 0;
  margin-right: 1px;
}

.button-group .button:first-child { border-radius: 0.5em 0 0 0.5em; }
.button-group .button:last-child { border-radius: 0 0.5em 0.5em 0; }

/* ---- .buy-button ---- */

.buy-button {
  padding: 0;
  font-size: 1.05em;
}

.buy-button > * {
  display: inline-block;
  padding: 8px 1.0em;
}

.buy-button .price {
  background-color: #2c6;
  border-radius: 0 7px 7px 0;
  color: white;
  text-shadow: 0 -1px hsla(0, 0%, 0%, 0.8);
  background-image: linear-gradient( to bottom, hsla(0, 0%, 0%, 0), hsla(0, 0%, 0%, 0.2) );
}

.buy-button:hover .price { background-color: #2A5; }

.buy-button:active .price { background: transparent; }

.buy-button .dollar { font-size: 0.95em; }
.buy-button .amount { font-size: 1.2em; }

.buy-button ~ .buy-button { margin-left: 2.0em; }

/* ---- #content ---- */

#content .primary-content,
#footer .primary-content {
  border-top: 2px solid #484542;
}

#content li {
  margin-bottom: 0.2em;
}

/* ---- parameters ---- */

.params {
  padding: 0;
  list-style: none;
}

.param {
  background: hsla(0, 0%, 100%, 0.1);
  padding: 0.4em 0.8em;
  margin: 0;
  border-radius: 5px;
}

.param,
.param code {
  font-size: 14px;
}

/* just one param */
div.param {
  margin-bottom: 0.8em;
}

.param-bit {
  display: inline;
  display: inline-block;
  margin-bottom: 0;
  margin-right: 1.0em;
}

.param-bit:last-child { margin-right: 0}

.param-name {
  font-size: 15px;
  font-weight: normal;
  color: #BBB;
}

.param-bit b {
  font-weight: normal;
}

.param-bit.type .value {
  color: #ADF;
}

/* ---- instruction ---- */

.instruction {
  font-size: 18px;
  margin-bottom: 0.2em;
  color: #888;
}

/* ---- warning ---- */

.warning {
  position: relative;
  min-height: 40px;
  background: #FF8;
  color: #333;
  border-radius: 5px;
  margin-bottom: 0.8em;
  padding: 10px;
  padding-left: 60px;
}

.warning a { color: #09F; }

.warning p:last-child {
  margin-bottom: 0;
}

.warning:before {
  content: '!';
  display: block;
  position: absolute;
  left: 10px;
  top: 10px;
  width: 40px;
  height: 40px;
  border-radius: 20px;
  background: red;
  line-height: 40px;
  text-align: center;
  font-weight: bold;
  font-size: 30px;
  color: white;
}

/* ---- notification ---- */

#notification {
  display: none; /* hide by default */
  position: fixed;
  z-index: 20; /* above most stuff */
  bottom: 0px;
  right: 0px;
  background: #A2C;
  padding: 0.5em;
  color: white;
  font-size: 20px;
  pointer-events: none;
}

/* ---- top-banner ---- */

#top-banner {
  background: #FF0;
  padding: 0.6em 0;
  color: #222;
}

#top-banner h2 {
  margin-bottom: 0.4em;
}

#top-banner a {
  color: #06F;
  font-weight: 500;
}

#top-banner a:hover { color: #F06; }

/* ---- support button ---- */

.support-button {
  font-size: 20px;
}

/* ---- desktop media query ---- */

@media screen and ( min-width: 960px ) {
  .tagline {
    font-size: 1.8em;
  }
}