html {
  font-size: 10px;
}

body {
  font-size: 1.6rem;

  font-family: Fira Sans;
}

html, body {
  margin: 0;
}

header {
  box-sizing: border-box;

  padding-top: 5rem;

  width: 100%;
  height: 70rem;

  text-align: center;

  background: url(assets/background.jpg) no-repeat;
  background-size: cover;

  color: white;

  position: relative;

  text-shadow: 0 2px 15px rgba(0, 0, 0, 0.3);
}

header::after {
  content: '';

  position: absolute;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;

  background: rgba(0, 0, 0, 0.3);

  z-index: 0;
}

header h1, header h2, header svg {
  position: relative;
  z-index: 1;
}

h1 {
  font-weight: 300;

  font-size: 64pt;

  margin-top: 0;
}

h2 {
  font-weight: 200;

  font-size: 24pt;

  margin-bottom: 5rem;
}

footer {
  background: #F0F0F0;

  color: #5E6572;

  text-align: center;
}

footer a {
  text-decoration: none;
  color: currentColor;
}

footer > p, footer > a {
  display: inline-block;

  width: 20%;
}

.heart {
  background: url(assets/heart.svg) no-repeat;
  display: inline-block;
  width: 20px;
  height: 20px;

  position: relative;
  top: 0.5rem;
}

svg {
  cursor: pointer;
}

svg rect {
  stroke-dashoffset: 15;

  animation: cool 50s infinite;
  animation-play-state: paused;
}

svg:hover rect {
  animation-play-state: running;
}

@keyframes cool {
  50% {
    stroke-dashoffset: 5000;
  }
}