/* ===== Base Reset ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  line-height: 1.6;
  background-color: var(--bg);
  color: var(--fg);
  padding: 0 1rem;
  /* layout */
  max-width: 700px;
  margin: 0 auto;
}

body a {
  color: magenta;
}

body pre {
  padding:1rem;
  margin-bottom: 1rem;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 600;
  margin: 1.5rem 0 0.75rem;
}

p {
  margin-top: 1.3rem;
  margin-bottom: 1.3rem;
}

/* ===== Images ===== */
img {
  max-width: 100%;
  height: auto;
  border-radius: 5px;
}

/* ===== Navigation ===== */
nav {
  display: flex;
  /* justify-content: space-between; */
  /* align-items: center; */
  /* padding: 1rem 0; */
  /* flex-wrap: wrap; */
}

nav a {
  margin-right: 1.5rem;
  font-size: 3rem;
  text-decoration: none;
}

.home {
}

.toggle-button {
  font-size: 3rem;
  border: none;
  background-color: var(--bg);
  cursor: pointer;
}

#search {
  width: 100%;
  background-color: var(--bg);
  color: var(--fg);
  border: 1px solid var(--fg);
  padding: 1rem;
  margin-bottom: 1.3rem;
}

#results li {
  list-style: none;
  margin-bottom: 1rem;
}

/* archive tree */

.tree, .tree ul {
  list-style: none;
  margin: 0;
  position: relative;
}

.tree ul {
  margin-left: 0.5rem;
}

.tree li {
  margin: 0;
  padding: 0.25rem 0 0.25rem 1rem;
  position: relative;
}

.tree li::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  border-left: 1px solid var(--fg);
  border-bottom: 1px solid var(--fg);
  width: 1rem;
  height: 1rem;
}

footer {
  padding-bottom: 2rem;
}

/* ===== Responsive ===== */
@media (min-width: 768px) {
  body {
    padding: 0 2rem;
  }
  nav {
    flex-wrap: nowrap;
  }
}