* {
  box-sizing: border-box;
}
html,
body {
  height: 100%;
  margin: 0;
  background: #121212;
  font-family: "Helvetica", sans-serif;
  color: #fff;
  display: flex;
  flex-direction: column;
}
main {
  height: 100%;
  margin: 0 auto;
  max-width: 700px;
  padding: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  text-align: center;
  flex: 1;
}
a {
  color: #1e90ff;
  font-weight: bold;
  text-decoration: none;
}
a:hover {
  text-decoration: underline;
  color: #ff6347;
}
h1 {
  font-size: 2.5rem;
  margin-bottom: 20px;
}
p {
  font-size: 1.2rem;
}
@keyframes blink {
  50% {
    opacity: 0;
  }
}
.dot {
  animation: 1s blink infinite;
}
.dot:nth-child(2) {
  animation-delay: 250ms;
}
.dot:nth-child(3) {
  animation-delay: 500ms;
}
footer {
  display: flex;
  justify-content: center;
  padding-bottom: 10px;
  gap: 20px;
}
footer a {
  color: #fff;
  font-size: 1.5rem;
  transition: color 0.3s;
}
footer a:hover {
  color: #ff6347;
}
footer svg {
  fill: currentColor;
}