:root {
  color-scheme: dark;
  --bg: #121417;
  --card: #1b1f24;
  --border: #2c333c;
  --text: #e8eaed;
  --muted: #9aa3ad;
  --accent: #7dcea0;
  --focus: #8ab4ff;
  --radius: 12px;
  font-family: "Segoe UI", system-ui, sans-serif;
}

@media (prefers-color-scheme: light) {
  :root {
    color-scheme: light;
    --bg: #f4f6f8;
    --card: #ffffff;
    --border: #d7dee6;
    --text: #1a1f24;
    --muted: #5b6570;
    --accent: #1f7a4c;
    --focus: #1a5fb4;
  }
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 3rem 1.25rem;
}

h1,
h2 {
  margin: 0 0 0.35rem;
  font-weight: 650;
  letter-spacing: -0.02em;
}

h1 {
  font-size: 1.65rem;
}

h2 {
  font-size: 1.1rem;
}

.lede {
  margin: 0 0 1.5rem;
  color: var(--muted);
}

.cards {
  display: grid;
  gap: 0.85rem;
}

.card {
  display: block;
  padding: 1.1rem 1.15rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: inherit;
  text-decoration: none;
}

.card:hover {
  border-color: var(--accent);
}

.card p {
  margin: 0;
  color: var(--muted);
}

.card:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}