html {
  font-family: Arial, Helvetica, sans-serif;
}

body {
  margin: 0;
  padding: 0;
  background-color: #161616;
  color: #ffffff;
}

h1,
p {
  text-align: center;
  margin: 0;
  padding: 0;
}

.container {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
  height: 100vh;
  z-index: 10;
}

.changelog {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 20px;
  background-color: #1f1f1f;
  padding: 50px;
  border: 1px solid #333;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.5);
}

.changelog::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 12em;
  width: 4px;
  height: calc(100% - 25em);
  background-color: #333;
  transform: translateX(-1400%);
  z-index: 0;
}

.changelog-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
  width: 100%;
}

.changelog-item::before {
  content: "";
  position: absolute;
  left: 50%;
  width: 14px;
  height: 14px;
  background-color: #48ffc2;
  border-radius: 50%;
  transform: translateX(-440%);
  z-index: 2;
}

.changelog-item-header {
  display: flex;
  flex-direction: column;
  align-items: end;
  text-align: end;
  width: 30%;
  color: #9f9f9f;
}

.changelog-item-header {
  margin: 0;
  font-size: 15px;
}

.changelog-item-body {
  width: 55%;
}

.changelog-item-divider:before {
  content: "";
  display: block;
  width: 3px;
  height: 100%;
  background-color: #ffffff;
}

button {
  background-color: #48ffc2;
  width: 50%;
  color: #ffffff;
  border: none;
  padding: 10px 20px;
  border-radius: 5px;
  cursor: pointer;
  margin-top: 20px;
  transition: background-color 0.3s;
}

button a {
  color: #000000;
  font-weight: bold;
  text-decoration: none;
}

button:hover {
  background-color: #00ff9b;
}

@media screen and (max-width: 768px) {
  .container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 90%;
    gap: 20px;
  }

  .changelog {
    padding: 50px;
  }

  button {
    width: 100%;
  }
}