/* ============================
   Page layout
============================ */
body {
  margin: 0;
  font-family:
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    Roboto,
    "Helvetica Neue",
    Arial,
    sans-serif;

  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;

  color: #222;
  line-height: 1.65;
  background: #e5e5e5;
}

/* ============================
   Site header
============================ */

.site-header {
  text-align: center;
  padding: 2rem 0 1rem;
}

.site-logo {
  display: block;
  font-size: 1.9rem;
  font-weight: 700;
  text-decoration: none;
  color: #222;
  margin-bottom: 0.5rem;
}

.site-header nav a {
  margin: 0 0.75rem;
  font-size: 0.95rem;
  text-decoration: underline;
  color: #222;
}

.site-header nav a:hover {
  text-decoration: none;
}

/* ============================
   Main content column
============================ */

main {
  background: #fff;
  width: 65%;
  max-width: 900px;
  margin: 2.5rem auto;
  padding: 2.5rem;
  border: 1px solid #ccc;
  box-sizing: border-box;
}

/* Responsive */
@media (max-width: 900px) {
  main {
    width: 92%;
    padding: 1.5rem;
  }
}

/* ============================
   Hero image
============================ */

.hero {
  margin: 2rem 0;
}

.hero img {
  max-width: 100%;
  height: auto;
  display: block;
}

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

h1 {
  font-size: 2.2rem;
  line-height: 1.3;
  margin: 0 0 0.75em;
  font-weight: 700;
}

h2 {
  font-size: 1.6rem;
  line-height: 1.35;
  margin: 2em 0 0.5em;
  font-weight: 600;
}

h3 {
  font-size: 1.25rem;
  line-height: 1.4;
  margin: 1.5em 0 0.4em;
  font-weight: 600;
}

p {
  margin: 0 0 1em;
  font-size: 1rem;
}

ul,
ol {
  margin: 0 0 1.2em 1.4em;
  padding: 0;
}

li {
  margin: 0.4em 0;
}

/* ============================
   Tables
============================ */

table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 0.95rem;
}

th,
td {
  text-align: left;
  padding: 0.6em 0.75em;
  border-bottom: 1px solid #ddd;
  vertical-align: top;
}

th {
  background: #f7f7f7;
  font-weight: 600;
}

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

a {
  color: #1a1a1a;
  text-decoration: underline;
}

a:hover {
  text-decoration: none;
}

/* ============================
   Sections
============================ */

section {
  margin-bottom: 2em;
  border-bottom: 1px solid #eee;
}

aside {
  margin-top: 3rem;
  padding: 1.5rem;
  border: 1px solid #ccc;
  background: #f9f9f9;
}

aside h3 {
  margin-top: 0;
}

/* ============================
   Footer
============================ */

.site-footer {
  text-align: center;
  padding: 2rem 0;
  font-size: 0.9rem;
  color: #555;
}

.site-footer nav a {
  margin: 0 0.6rem;
}