hgroup {
  margin-bottom: 0;
}

.mono {
  font-family: monospace;
}

.btn-success {
  background-color: #28a745;
  border-color: #228c3a;
  color: #fff;
}

.btn-caution {
  background-color: #ab0a2a;
  border-color: #8c081f;
  color: #fff;
}

.tip {
  background: #e8f5e9;
  border-left: 4px solid #4caf50;
  padding: 1rem;
  margin: 1rem 0;
  color: #1b5e20;
}

.error {
  background: #fdecea;
  border-left: 4px solid #d93526;
  padding: 1rem;
  margin: 1rem 0;
  color: #d93526;
}

.error::before {
  content: 'ERRORS';
  display: block;
  font-weight: bold;
  letter-spacing: 0.1em;
  opacity: 0.6;
  margin-bottom: 0.25rem;
}

.warning {
  background: rgb(242, 223, 13, 0.1);
  border-left: 4px solid #f2df0d;
  padding: 1rem;
  margin: 1rem 0;
  color: #827800;
}

.warning::before {
  content: 'WARNINGS';
  display: block;
  font-weight: bold;
  letter-spacing: 0.1em;
  opacity: 0.6;
  margin-bottom: 0.25rem;
}

/* ---------- Navbar ---------- */
#navbar {
  background: var(--pico-card-sectioning-background-color);
  border-bottom: 1px solid var(--pico-muted-border-color);
  padding: 0;
}

#navbar nav {
}

#navbar nav ul {
  margin-bottom: 0;
}

#navbar nav details > summary {
  border-color: transparent;
}

/* ---------- Theme Toggle ---------- */
#theme-toggle {
  width: 2rem;
  height: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--pico-muted-border-color);
  background: transparent;
  color: var(--pico-text-color);
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s;
  padding: 0;
  margin: 0;
  font-size: 1rem;
  line-height: 1;
}

#theme-toggle:hover {
  opacity: 1;
}

/* ---------- Footer ---------- */
footer {
  text-align: center;
  font-size: 0.6rem;
  color: #aaa;
  text-decoration: none;
}

footer a {
  text-decoration: none;
  font-size: 0.8rem;
}