:root {
  --bg: #fafaf9;
  --fg: #1c1c1a;
  --muted: #5c5c57;
  --border: #e2e1dc;
  --surface: #f1f0ec;
  --accent: #1f5fbf;
  --accent-fg: #ffffff;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #121211;
    --fg: #ecebe6;
    --muted: #a3a29b;
    --border: #2c2c29;
    --surface: #1b1b19;
    --accent: #7aa7f0;
    --accent-fg: #0d0d0c;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--fg);
  font: 1rem/1.65 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.wrap {
  max-width: 44rem;
  margin: 0 auto;
  padding: 0 1.25rem;
}

a { color: var(--accent); text-underline-offset: 0.2em; }
a:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 2px; }

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 1.5rem;
  padding-bottom: 1.5rem;
}

.brand { display: inline-flex; line-height: 0; }
.brand img { height: 28px; width: auto; }
.brand-footer img { height: 24px; }

.hero { padding-top: 3.5rem; padding-bottom: 3rem; }

.eyebrow {
  margin: 0 0 1rem;
  color: var(--muted);
  font: 0.85rem ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

h1 {
  margin: 0 0 1rem;
  font-size: clamp(2rem, 6vw, 2.9rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

.lead { margin: 0 0 1.75rem; font-size: 1.15rem; color: var(--muted); }

.button {
  display: inline-block;
  padding: 0.65rem 1.1rem;
  background: var(--accent);
  color: var(--accent-fg);
  border-radius: 6px;
  font-weight: 600;
  text-decoration: none;
}
.button:hover { opacity: 0.9; }

section.wrap { padding-top: 2.5rem; padding-bottom: 0.5rem; }

h2 { margin: 0 0 1rem; font-size: 1.4rem; letter-spacing: -0.01em; }
h3 { margin: 0 0 0.4rem; font-size: 1.05rem; }
p { margin: 0 0 1rem; }

.cards {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1rem;
}
.cards li {
  padding: 1.1rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
}
.cards p { margin: 0; color: var(--muted); }

.note {
  padding: 1rem 1.25rem 0.1rem;
  border-left: 3px solid var(--accent);
  background: var(--surface);
  border-radius: 0 8px 8px 0;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1rem;
  margin-top: 3.5rem;
  padding-top: 1.5rem;
  padding-bottom: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.92rem;
}

@media (min-width: 40rem) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .wrap { max-width: 52rem; }
}