:root {
  color-scheme: light dark;
  --bg: #fafaf7;
  --surface: #ffffff;
  --text: #1a1a1a;
  --muted: #5a5a5a;
  --accent: #d8763c;
  --border: #e7e4dd;
  --max-width: 720px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14130f;
    --surface: #1c1b17;
    --text: #ececea;
    --muted: #9a988f;
    --accent: #f0925a;
    --border: #2b2924;
  }
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  text-decoration: underline;
}

header {
  border-bottom: 1px solid var(--border);
  background: var(--surface);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  font-size: 1.125rem;
  letter-spacing: -0.01em;
  color: var(--text);
}

.brand:hover {
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.25rem;
  font-size: 0.9375rem;
  color: var(--muted);
}

.nav-links a {
  color: var(--muted);
}

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

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 4rem;
}

main h1 {
  font-size: 2rem;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 0 0 0.5rem;
}

main h2 {
  font-size: 1.25rem;
  letter-spacing: -0.01em;
  margin: 2.5rem 0 0.75rem;
  color: var(--text);
}

main h3 {
  font-size: 1.0625rem;
  margin: 1.75rem 0 0.5rem;
}

main p {
  margin: 0 0 1rem;
}

.meta {
  color: var(--muted);
  font-size: 0.9375rem;
  margin-bottom: 2rem;
}

.meta strong {
  color: var(--text);
  font-weight: 600;
}

.lead {
  font-size: 1.1875rem;
  line-height: 1.5;
  color: var(--text);
  margin: 0 0 2rem;
}

footer {
  border-top: 1px solid var(--border);
  background: var(--surface);
  margin-top: 4rem;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1.75rem 1.25rem;
  font-size: 0.875rem;
  color: var(--muted);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-links {
  display: flex;
  gap: 1.25rem;
}

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

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

/* Landing-only */
.hero {
  text-align: center;
  padding: 3rem 0 2rem;
}

.hero h1 {
  font-size: 3rem;
  margin: 0 0 0.75rem;
  letter-spacing: -0.03em;
}

.hero .tagline {
  font-size: 1.25rem;
  color: var(--muted);
  margin: 0 0 2rem;
}

.cta {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.cta:hover {
  text-decoration: none;
  filter: brightness(1.05);
}

.cta[aria-disabled="true"] {
  background: var(--border);
  color: var(--muted);
  cursor: not-allowed;
}

@media (max-width: 480px) {
  .hero h1 { font-size: 2.25rem; }
  .hero .tagline { font-size: 1.0625rem; }
  main h1 { font-size: 1.625rem; }
  .nav { padding: 0.875rem 1rem; }
  main { padding: 2rem 1rem 3rem; }
}