:root {
  --color-text: #1f2328;
  --color-muted: #57606a;
  --color-bg: #ffffff;
  --color-border: #e3e6e9;
  --color-accent: #0a5b47;
  --max-width: 50rem;
  --font-sans:
    -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial,
    sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  font-size: 17px;
}

.wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3 {
  line-height: 1.25;
  margin-top: 2em;
  margin-bottom: 0.5em;
}

h1:first-child {
  margin-top: 0;
}

p {
  margin: 0 0 1em;
}

ul,
ol {
  padding-left: 1.25em;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--color-border);
  padding: 1.25rem 0;
}

.site-header .wrapper {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

.site-title {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
}

.site-title:hover {
  text-decoration: none;
}

/* Hidden checkbox that drives the mobile menu — no JS. */
.nav-toggle {
  position: absolute;
  left: -9999px;
}

.nav-toggle-label {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 22px;
  height: 16px;
  cursor: pointer;
}

.nav-toggle-label span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--color-text);
  border-radius: 2px;
}

.nav-toggle:focus-visible ~ .nav-toggle-label {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.nav-link {
  color: var(--color-muted);
  font-size: 0.95rem;
}

.nav-link:hover {
  color: var(--color-accent);
}

@media (max-width: 640px) {
  .nav-toggle-label {
    display: flex;
  }

  .site-nav {
    display: none;
    flex-basis: 100%;
    flex-direction: column;
    gap: 0.85rem;
    order: 3;
    padding-top: 0.75rem;
  }

  .nav-toggle:checked ~ .site-nav {
    display: flex;
  }
}

/* Main content */

main.wrapper {
  padding-top: 2.5rem;
  padding-bottom: 3rem;
  min-height: 60vh;
}

/* Home */

.lede {
  font-size: 1.15rem;
  color: var(--color-muted);
  margin-bottom: 2rem;
}

.page-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1.25rem;
}

.page-list li {
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
}

.page-list a {
  font-size: 1.1rem;
  font-weight: 600;
}

.page-list p {
  margin: 0.4em 0 0;
  color: var(--color-muted);
  font-size: 0.95rem;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: 1.5rem 0;
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer .wrapper {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem;
}

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

.site-footer a:hover {
  color: var(--color-accent);
}