* {
  margin: 0;
  padding: 0;
  outline: none;
  box-sizing: border-box;
}

::selection {
  background-color: #52796f88;
}

body {
  color: #2f3e46;
  font-family: "Roboto", sans-serif;
}

a {
  text-decoration: none;
  color: inherit;
}

header {
  position: fixed;
  inset: 0 0 auto 0;
  height: 6.4rem;
  padding: 0 4rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  z-index: 2;
  backdrop-filter: blur(16px);
  border-bottom: 2px solid #2f3e4622;
}

header > h1 {
  font-size: 2.4rem;
  font-weight: 700;
}

header > section {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  justify-content: space-around;
  gap: 0.2rem;
}

header > section > h2 {
  font-size: 1.6rem;
  font-weight: 700;
}

header > section > a {
  letter-spacing: 0.1rem;
}

main {
  height: 100vh;
  width: 100%;
  padding-top: 6.4rem;
  display: grid;
  grid-template-columns: 1fr 5fr;
}

main > nav {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  overflow-y: auto;
  background-color: #2f3e46;
  color: #ffffff;
  border-right: 0.2rem solid #ffffff;
  backdrop-filter: blur(16px);
  padding: 2.4rem;
}

main > nav > button {
  color: inherit;
  background-color: transparent;
  border: none;
  padding: 0.2rem 0.8rem;
  text-align: left;
  font-size: 1.2rem;
  cursor: pointer;
  user-select: none;
  position: relative;
}

main > nav > button:hover,
main > nav > button.active {
  background-color: #ffffff;
  color: #2f3e46;
}

main > div {
  height: 100%;
  width: 100%;
  display: grid;
  grid-template-rows: 1fr 18fr;
  position: relative;
}

main > div > #loading {
  position: absolute;
  inset: 0;
  z-index: 10;
  animation: pulse 2s infinite;
  visibility: hidden;
}

main > div > section {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: #2f3e46;
  color: #ffffff;
  padding: 0 2rem;
  border-bottom: 0.2rem solid #ffffff;
}

main > div > section > a {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial,
    sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  background-color: #238636;
  color: #ffffff;
  font-weight: 500;
  font-size: 1rem;
  padding: 0.2rem 1.2rem;
  border: 1px solid #238636;
  border-radius: 0.4rem;
  user-select: none;
}

main > div > section > a:hover,
main > div > section > a:focus {
  background-color: #2ea043;
}

main > div > section > a:active {
  background-color: #238636;
}

main > div > iframe {
  height: 100%;
  width: 100%;
  border: none;
}

@keyframes pulse {
  0% {
    background-color: #2f3e46cc;
  }
  50% {
    background-color: #2f3e4644;
  }
  100% {
    background-color: #2f3e46cc;
  }
}