:root {
  --bg: #eef1f5; --card: #ffffff; --text: #1b2230; --muted: #667085; --line: #e1e5eb;
  --accent: #0b7f7b; --accent-hover: #086a67;
  --shadow: 0 1px 2px rgb(20 30 50 / .06), 0 4px 14px rgb(20 30 50 / .06);
  --font: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0e1319; --card: #18202a; --text: #e6e9ed; --muted: #9aa4af; --line: #29323d;
    --accent: #2fb8ae; --accent-hover: #4fcac1;
    --shadow: 0 1px 2px rgb(0 0 0 / .3);
  }
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--text); font: 16px/1.55 var(--font); }
a { color: var(--accent); }
a:hover { color: var(--accent-hover); }
main, header, footer { max-width: 760px; margin: 0 auto; padding: 0 16px; }

header { display: flex; align-items: center; gap: 12px; padding-top: 24px; padding-bottom: 8px; }
header a { display: flex; align-items: center; gap: 12px; color: inherit; text-decoration: none; }
header img { width: 44px; height: 44px; }
header span { font-size: 22px; font-weight: 700; letter-spacing: .2px; }

.home main { min-height: 100vh; display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 8px; text-align: center; }
.home img { width: 120px; height: 120px; }
.home h1 { font-size: 36px; margin: 0 0 16px; letter-spacing: .3px; }
.home a { font-size: 15px; color: var(--muted); }

article { background: var(--card); border-radius: 14px; box-shadow: var(--shadow); padding: 8px 24px 20px; margin: 16px 0; }
article h1 { font-size: 26px; margin: 20px 0 4px; }
article h2 { font-size: 18px; margin: 24px 0 6px; }
article .date { color: var(--muted); margin: 0 0 12px; }
article ul { padding-left: 22px; }
article li { margin: 4px 0; }

footer { color: var(--muted); font-size: 14px; padding-top: 24px; padding-bottom: 32px;
  display: flex; flex-wrap: wrap; gap: 6px 18px; }
footer a { color: var(--muted); }