:root {
  color-scheme: light;

  --dark-background-color: rgb(30, 30, 42);
  --dark-background-color-ui: rgb(50, 50, 62);
  --dark-foreground: rgb(241, 241, 255);
  --dark-foreground-dim: rgb(171, 171, 179);

  --light-background-color: rgb(225, 225, 237);
  --light-background-color-ui: rgb(241, 241, 255);
  --light-foreground: rgb(30, 30, 42);
  --light-foreground-dim: rgb(105, 105, 110);

  --dark-accent-color: rgb(84, 174, 219);
  --light-accent-color: rgb(0, 109, 163);

  --loader-size: 0.5em;
}

* {
  box-sizing: border-box;
  font-family: "Jetbrains Mono";
}

html, body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  background-color: light-dark(
    var(--light-background-color),
    var(--dark-background-color)
  );
  color: light-dark(var(--light-foreground), var(--dark-foreground));
}

header {
  padding: 0.5em 2em;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header > nav {
  display: flex;
  gap: 1em;
}

footer {
  padding: 0.5em;
  display: flex;
  justify-content: center;
  color: light-dark(var(--light-foreground-dim), var(--dark-foreground-dim));
  font-style: italic;
}

section {
  margin: 0 1.5em;
  padding: 0.5em 1.5em;
  background-color: light-dark(
    var(--light-background-color-ui),
    var(--dark-background-color-ui)
  );
  border-radius: 0.5em;
}

a {
  position: relative;
  text-decoration: none;
  color: light-dark(var(--light-accent-color), var(--dark-accent-color));
}

a::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background-color: light-dark(
    var(--light-accent-color),
    var(--dark-accent-color)
  );
  transform-origin: right;
  transform: scaleX(0);
  transition: transform 100ms ease-in-out;
}

a:focus::before, a:hover::before {
  transform-origin: left;
  transform: scaleX(1);
}