:root {
  --green-dark: #115631;
  --green-mid: #2d6a4f;
  --green-light: #d8f3dc;
  --green-pale: #f4faf6;
  --amber: #e7a553;
  --slate: #3d3d3d;
  --grey-border: #d8e8d8;
}

* { box-sizing: border-box; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--slate);
  line-height: 1.6;
  margin: 0;
  background: #fff;
}

.site-header {
  background: var(--green-dark);
  color: #fff;
  padding: 0 24px;
}

.site-header .bar {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  padding: 16px 0;
  gap: 12px;
}

.site-header .brand {
  font-weight: 700;
  font-size: 1.15em;
  color: #fff;
  text-decoration: none;
}

.site-header nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.site-header nav a {
  color: var(--green-light);
  text-decoration: none;
  font-size: 0.95em;
}

.site-header nav a:hover,
.site-header nav a.active {
  color: #fff;
  text-decoration: underline;
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

h1 {
  font-size: 2em;
  border-bottom: 2px solid var(--green-mid);
  padding-bottom: 10px;
  color: var(--green-mid);
  margin-top: 0;
}

h2 {
  font-size: 1.4em;
  color: var(--green-mid);
  margin-top: 2em;
  border-bottom: 1px solid var(--green-light);
  padding-bottom: 4px;
}

h3 {
  font-size: 1.1em;
  color: #40916c;
  margin-top: 1.5em;
}

p.lede {
  font-size: 1.1em;
  color: #555;
}

a { color: var(--green-mid); }

img {
  max-width: 100%;
  border: 1px solid var(--grey-border);
  border-radius: 6px;
  margin: 16px 0;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

pre {
  background: #f4f4f4;
  padding: 12px 16px;
  border-radius: 6px;
  font-size: 0.9em;
  overflow-x: auto;
  border-left: 4px solid #52b788;
}

code {
  background: var(--green-pale);
  padding: 2px 5px;
  border-radius: 4px;
  font-size: 0.9em;
}

pre code { background: none; padding: 0; }

table {
  border-collapse: collapse;
  width: 100%;
  margin: 16px 0;
  font-size: 0.95em;
}

th, td {
  border: 1px solid var(--grey-border);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}

th {
  background: var(--green-pale);
  color: var(--green-dark);
}

hr {
  border: none;
  border-top: 1px solid var(--grey-border);
  margin: 2em 0;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin: 24px 0;
}

.card {
  border: 1px solid var(--grey-border);
  border-radius: 8px;
  padding: 18px 20px;
  text-decoration: none;
  color: var(--slate);
  background: var(--green-pale);
  transition: box-shadow 0.15s ease, transform 0.15s ease;
}

.card:hover {
  box-shadow: 0 4px 14px rgba(17, 86, 49, 0.15);
  transform: translateY(-2px);
}

.card h3 {
  margin-top: 0;
  color: var(--green-dark);
}

.card p {
  margin-bottom: 0;
  color: #555;
  font-size: 0.95em;
}

.badge {
  display: inline-block;
  background: var(--amber);
  color: #3d2b00;
  font-size: 0.75em;
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 10px;
  margin-left: 8px;
  vertical-align: middle;
}

.error-block {
  border-left: 4px solid var(--amber);
  background: #fdf6ec;
  border-radius: 6px;
  padding: 4px 18px;
  margin: 18px 0;
}

.error-block .symptom {
  font-weight: 600;
  color: var(--green-dark);
}

footer.site-footer {
  max-width: 860px;
  margin: 0 auto;
  padding: 24px;
  color: #777;
  font-size: 0.9em;
  border-top: 1px solid var(--grey-border);
  text-align: center;
}

footer.site-footer a { color: var(--green-mid); }