/*!
  Breath Web App | © Nick Freear | License: GPL-3.0+.
*/

:root {
  --teal: #008080;
  --dark-teal: rgb(0, 32, 48); /* Hex: #004050; */
  --dark-teal-a: rgba(0,64,80,1);
  --darker-teal: rgba(0,32,48,1);
  --off-white: #DDD;
  --silver: #C0C0C0;
  --mid-grey: #999;
  --zoom: 1;
}

/* Counter-intuitively, larger fonts on big-screens! (iPad+) */
@media (min-width: 767px) {
  :root {
    --zoom: 1.5;
  }
}

html, body, svg, main {
  height: 100%;
  width: 100%;
}

body {
  /* https://cssgradient.io/ */
  background: var(--dark-teal);
  background: linear-gradient(180deg, var(--darker-teal) 0%, var(--dark-teal-a) 95%, var(--dark-teal-a) 99%);
  color: #fff;
  font: 1.2rem sans-serif;
  font-size: calc(var(--zoom) * 1.1rem);
  margin: 0;
  transition: all 1s;
}

[ role = button ],
button,
a {
  color: var(--off-white);
  cursor: pointer;
}

button:hover,
a:focus,
a:hover {
  color: #eee;
  transition: all 3s;
}

/* https://css-tricks.com/making-pure-css-playpause-button/
*/
#pause-btn {
  background: transparent;
  bottom: 1.2rem;
  display: none;
  left: 1.2rem;
  position: absolute;
  height: calc(var(--zoom) * 2rem);
  width: 1rem;
  border-style: solid;
  border-width: 1rem;
  border-color: var(--mid-grey);
  border-style: double;
  border-width: 0 0 0 calc(var(--zoom) * 1.6rem);

  box-sizing: border-box;
}

.is-playing #pause-btn {
  display: block;
}

#pause-btn:focus,
#pause-btn:hover {
  border-color: #eee;
}

a#fork-me {
  border-bottom: 3px dotted transparent;
  bottom: .5rem;
  letter-spacing: .1rem;
  padding: .8rem;
  position: absolute;
  right: .5rem;
  text-decoration: none;
}

a#fork-me:focus,
a#fork-me:hover {
  background: #003040;
  border-color: var(--mid-grey);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

a .beta {
  color: var(--mid-grey);
  display: none;
  font-style: italic;
}

.app-about {
  transition: all 1s;
}

.app-about--close .app-about {
  height: 1px;
  min-height: 0;
}

/* SVG styles.
*/

svg #breath {
  fill: var(--silver);
}

.Off-White {
  fill: var(--off-white);
}

/* End */