:root {
  --primary-container: #004d64;
  --on-primary-container: #bde9ff;
  --surface: #191c1e;
  --elevated-surface: #1e2a2f;
  --on-surface: #e1e2e4;
  --surface-variant: #40484c;
  --on-surface-variant: #c0c8cd;
  --primary: #65d3ff;
}

body {
  display: flex;
  min-height: 100vh;
  flex-direction: column;
  font-family: system-ui, Segoe UI, Roboto, Helvetica, Arial, sans-serif;
  color: var(--on-surface);
  background-color: var(--surface);
  margin: 0;
  line-height: 1.5;
  -webkit-text-size-adjust: none;
}

header {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  text-align: center;
  background-color: var(--elevated-surface);
}

header p {
  margin: 0;
}

header h1 {
  margin: 0;
  display: flex;
  align-items: center;
  font-size: 24px;
  background-color: var(--primary-container);
}

header h1 img {
  margin: 8px;
}

header h1 span {
  padding: 8px;
  background-color: var(--surface-variant);
  color: var(--on-surface-variant);
}

header h1 :nth-child(2n + 1) {
  background-color: var(--primary-container);
  color: var(--on-primary-container);
}

header a {
  text-decoration: none;
}

header nav a {
  display: flex;
  align-items: center;
  box-shadow: 0 4px 8px 0 var(--surface);
  background-color: var(--primary-container);
  color: var(--on-primary-container);
  border-radius: 12px;
  padding: 12px;
}

header nav {
  display: flex;
  gap: 8px;
}

@media (max-width: 750px) {
  header {
    flex-direction: column;
  }
}