/* Reset minimal */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

:root {
  --green-700: #2e7d32;
  --green-800: #1b5e20;
  --amber: #c2851b;
  --ink-900: #18181b;
  --ink-700: #3f3f46;
  --ink-500: #71717a;
  --ink-200: #e4e4e7;
  --ink-100: #f4f4f5;
  --ink-50: #fafafa;
  --bg: #ffffff;
  --bg-alt: #f5f5f4;
  --max-w: 760px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink-700);
  background: var(--bg-alt);
  min-height: 100vh;
}

/* Top bar */
.topbar {
  background: var(--green-800);
  color: white;
  padding: 14px 20px;
  position: sticky;
  top: 0;
  z-index: 10;
  box-shadow: 0 1px 4px rgba(0,0,0,.1);
}
.topbar .wrap {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}
.topbar .brand {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -.01em;
  flex: 1;
}
.topbar .nav-links a {
  color: rgba(255,255,255,.85);
  margin-left: 14px;
  font-size: 13px;
  font-weight: 500;
  text-decoration: none;
}
.topbar .nav-links a:hover { color: white; text-decoration: underline; }

/* Container */
.container {
  max-width: var(--max-w);
  margin: 32px auto 64px;
  background: white;
  padding: 32px 36px;
  border-radius: 12px;
  border: 1px solid var(--ink-100);
  box-shadow: 0 1px 3px rgba(0,0,0,.04);
}

/* Headings */
h1 {
  font-size: 28px;
  font-weight: 700;
  margin: 0 0 24px;
  color: var(--ink-900);
  letter-spacing: -0.02em;
  line-height: 1.25;
}
h2 {
  font-size: 20px;
  font-weight: 700;
  margin: 36px 0 12px;
  color: var(--ink-900);
}
h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 24px 0 10px;
  color: var(--ink-900);
}

/* Body text */
p { margin: 0 0 14px; }
strong { color: var(--ink-900); font-weight: 600; }
ul, ol { margin: 0 0 14px; padding-left: 22px; }
li { margin: 0 0 6px; }

/* Links */
a {
  color: var(--green-700);
  text-decoration: underline;
  text-underline-offset: 2px;
}
a:hover { color: var(--green-800); }

/* Code */
code {
  background: var(--ink-100);
  padding: 1px 6px;
  border-radius: 4px;
  font-size: 13.5px;
  font-family: 'SF Mono', Menlo, Consolas, monospace;
}

/* Tables */
table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 18px;
  font-size: 14px;
}
th, td {
  border: 1px solid var(--ink-200);
  padding: 8px 12px;
  text-align: left;
  vertical-align: top;
}
th {
  background: var(--ink-50);
  font-weight: 600;
  color: var(--ink-900);
}

/* Blockquote */
blockquote {
  border-left: 3px solid var(--amber);
  margin: 0 0 16px;
  padding: 10px 14px;
  background: rgba(194, 133, 27, 0.08);
  font-size: 14px;
  border-radius: 0 6px 6px 0;
}
blockquote p:last-child { margin-bottom: 0; }

/* Horizontal rule */
hr {
  border: 0;
  border-top: 1px solid var(--ink-200);
  margin: 28px 0;
}

/* Footer */
footer {
  text-align: center;
  padding: 32px 16px 48px;
  font-size: 13px;
  color: var(--ink-500);
}
footer a { color: var(--ink-500); }

/* Landing-specific */
.landing-hero {
  text-align: center;
  padding: 48px 24px 32px;
}
.landing-hero h1 { margin-bottom: 8px; font-size: 36px; }
.landing-hero p {
  color: var(--ink-500);
  font-size: 16px;
  max-width: 480px;
  margin: 0 auto 32px;
}
.landing-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 16px;
}
.landing-card {
  display: block;
  background: white;
  border: 1px solid var(--ink-200);
  border-radius: 12px;
  padding: 24px 20px;
  text-decoration: none;
  color: inherit;
  transition: transform .15s, box-shadow .15s;
}
.landing-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0,0,0,.08);
  border-color: var(--green-700);
}
.landing-card h3 {
  margin: 0 0 6px;
  color: var(--green-700);
  font-size: 17px;
}
.landing-card p {
  margin: 0;
  font-size: 14px;
  color: var(--ink-500);
}

/* Responsive */
@media (max-width: 600px) {
  .container { margin: 16px 12px 32px; padding: 20px 16px; border-radius: 8px; }
  h1 { font-size: 22px; }
  h2 { font-size: 17px; }
  .landing-cards { grid-template-columns: 1fr; }
  .landing-hero { padding: 32px 16px 20px; }
  .landing-hero h1 { font-size: 26px; }
}