/* ===== Global Typography ===== */

body {
  font-size: 16px;
  line-height: 1.6;
}

h1 {
  font-weight: 600;
  margin-bottom: 0.5em;
}

h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
  font-weight: 600;
  border-bottom: 1px solid #e5e5e5;
  padding-bottom: 0.3rem;
}

h3 {
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

/* ===== Section Spacing ===== */

p {
  margin-bottom: 1rem;
}

ul {
  margin-bottom: 1.2rem;
}

/* ===== Callouts (your "cards") ===== */

.callout {
  border-radius: 10px;
  padding: 1rem 1.2rem;
  margin: 1.5rem 0;
  border-left: 4px solid #3b82f6; /* subtle blue */
  background-color: #fafafa;
}

.callout-note {
  border-left-color: #3b82f6;
}

.callout-tip {
  border-left-color: #10b981; /* green */
}

.callout-important {
  border-left-color: #6366f1; /* indigo */
}

/* Remove heavy default backgrounds */
.callout .callout-body {
  background: transparent;
}

/* ===== Grid spacing ===== */

.grid {
  gap: 1.5rem;
}

/* ===== Links ===== */

a {
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ===== Navbar ===== */

.navbar {
  border-bottom: 1px solid #e5e5e5;
}

.navbar-brand {
  font-weight: 600;
}

/* ===== Page width control ===== */

main.content {
  max-width: 900px;
  margin: auto;
}

/* ===== Subtle horizontal rules ===== */

hr {
  margin: 2rem 0;
  border: none;
  border-top: 1px solid #e5e5e5;
}