:root {
  --green: #15784A;
  --green-deep: #0C3D2A;
  --green-bright: #1FAE6A;
  --ink: #10201A;
  --muted: #6A7B71;
  --bg: #F4F7F4;
  --surface: #FFFFFF;
  --surface-tint: #E8F2EA;
  --amber: #F2A93B;
  --font-display: "Bricolage Grotesque", system-ui, sans-serif;
  --font-body: "Hanken Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  line-height: 1.6;
}

a { color: var(--green); }
a:hover { color: var(--green-deep); }

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  max-width: 860px;
  margin: 0 auto;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--ink);
  text-decoration: none;
}

.brand span { color: var(--green); }

.site-nav a {
  font-size: 0.95rem;
  text-decoration: none;
  color: var(--muted);
}

main {
  max-width: 860px;
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
}

.hero {
  padding: 2rem 0 2.5rem;
  border-bottom: 1px solid var(--surface-tint);
  margin-bottom: 2rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  margin: 0 0 0.75rem;
  color: var(--green-deep);
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
  max-width: 60ch;
  margin: 0;
}

.post-list {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.post-card {
  background: var(--surface);
  border: 1px solid var(--surface-tint);
  border-radius: 12px;
  padding: 1.5rem;
}

.post-card h2 {
  font-family: var(--font-display);
  margin: 0 0 0.4rem;
  font-size: 1.35rem;
}

.post-card h2 a { text-decoration: none; color: var(--ink); }
.post-card h2 a:hover { color: var(--green); }

.post-meta {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 0 0.75rem;
}

.post-excerpt {
  margin: 0 0 0.75rem;
}

.read-more {
  font-weight: 600;
  text-decoration: none;
  font-size: 0.9rem;
}

.post-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  color: var(--green-deep);
  margin-bottom: 0.4rem;
}

.post-content {
  font-size: 1.05rem;
}

.post-content h2 {
  font-family: var(--font-display);
  color: var(--green-deep);
  margin-top: 2rem;
}

.post-content img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
}

.post-content pre {
  background: var(--ink);
  color: var(--surface-tint);
  padding: 1rem;
  border-radius: 8px;
  overflow-x: auto;
}

.back-link {
  margin-top: 2.5rem;
}

.site-footer {
  max-width: 860px;
  margin: 2rem auto 0;
  padding: 1.5rem 1.5rem 2.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--surface-tint);
}

@media (max-width: 600px) {
  .site-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
}