:root {
  color-scheme: light;
  --bg: #f4f7fb;
  --card: #ffffff;
  --text: #14213d;
  --muted: #4b5563;
  --accent: #0f766e;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Georgia, "Times New Roman", serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.card {
  max-width: 760px;
  margin: 48px auto;
  background: var(--card);
  border: 1px solid #dbe3f0;
  border-radius: 12px;
  padding: 28px;
}

.date {
  margin-top: 0;
  color: var(--muted);
}

h1, h2 {
  line-height: 1.25;
  color: var(--accent);
}

h1 { margin-top: 0; font-size: 1.7rem; }
h2 { font-size: 1.15rem; margin-bottom: 0.3rem; }

section + section { margin-top: 18px; }