:root {
  color-scheme: dark;
  --bg: #000;
  --fg: #f5f5f7;
  --muted: #8e8e93;
  --rule: #2c2c2e;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: ui-serif, "New York", Georgia, "Times New Roman", serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--fg); }

/* Home */
.home {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3rem;
  padding: 2rem 1rem;
  text-align: center;
}

.home h1 {
  margin: 0;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 1.125rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}

.home nav {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.home nav a {
  font-size: clamp(2.25rem, 8vw, 4.5rem);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.home nav a:hover,
.home nav a:focus-visible { opacity: 0.6; }

/* Content pages */
.page {
  max-width: 680px;
  margin: 0 auto;
  padding: 3rem 1rem 5rem;
  line-height: 1.6;
}

.page .back {
  display: inline-block;
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  margin-bottom: 2.5rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.95rem;
}

.page .back:hover { color: var(--fg); }

.page h1 {
  font-size: 2.5rem;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

.page h2 {
  font-size: 1.35rem;
  margin: 2.5rem 0 0.5rem;
}

.page .meta { color: var(--muted); margin: 0 0 2rem; }

.page h3 {
  font-size: 1.1rem;
  margin: 1.75rem 0 0.4rem;
}

.page ul { padding-left: 1.25rem; }

.page li { margin-bottom: 0.4rem; }

.page footer {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  margin-top: 4rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.875rem;
  text-align: center;
}