:root {
  --bg: #fafafa;
  --bg-secondary: #f5f5f5;
  --fg: #171717;
  --fg-secondary: #525252;
  --fg-tertiary: #a3a3a3;
  --max-width: 640px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 1.5rem 6rem;
}

h1, h2 {
  font-family: ui-serif, "New York", Georgia, "Times New Roman", serif;
  font-weight: 600;
  letter-spacing: -0.01em;
}

h1 { font-size: 2.25rem; margin-bottom: 0.5rem; }
h2 { font-size: 1.35rem; margin: 2.5rem 0 0.75rem; }

p, li { color: var(--fg-secondary); margin-bottom: 1rem; }
li { margin-bottom: 0.4rem; }
ul { padding-left: 1.4rem; margin-bottom: 1rem; }

a { color: var(--fg); text-underline-offset: 3px; }
a:hover { color: var(--fg-secondary); }

.meta { color: var(--fg-tertiary); font-size: 0.9rem; margin-bottom: 2.5rem; }

.wordmark {
  font-family: ui-serif, "New York", Georgia, serif;
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--fg);
  text-decoration: none;
  display: inline-block;
  margin-bottom: 3rem;
}

footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem 3rem;
  color: var(--fg-tertiary);
  font-size: 0.9rem;
}
footer a { color: var(--fg-secondary); margin-right: 1.25rem; }

/* Landing */
.hero {
  min-height: 55vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero h1 { font-size: 3rem; margin-bottom: 1rem; }
.hero p.tagline { font-size: 1.25rem; max-width: 34rem; }
.badge {
  display: inline-block;
  margin-top: 2rem;
  padding: 0.6rem 1.1rem;
  border: 1px solid #e5e5e5;
  border-radius: 999px;
  background: var(--bg-secondary);
  color: var(--fg-secondary);
  font-size: 0.95rem;
  width: fit-content;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #171717;
    --bg-secondary: #202020;
    --fg: #fafafa;
    --fg-secondary: #b5b5b5;
    --fg-tertiary: #737373;
  }
  .badge { border-color: #333; }
}