*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --text: #1a1a1a;
  --text-secondary: #555;
  --bg: #fafafa;
  --accent: #2563eb;
  --accent-hover: #1d4ed8;
  --border: #e5e5e5;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

h1 {
  font-size: 1.8rem;
  margin-bottom: 0.5rem;
}

h2 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

.bio {
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
}

.posts {
  list-style: none;
}

.posts li {
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.posts li:first-child {
  border-top: 1px solid var(--border);
}

.posts time {
  color: var(--text-secondary);
  font-size: 0.9rem;
  white-space: nowrap;
}

article {
  max-width: 640px;
}

article header {
  margin-bottom: 2rem;
}

article header time {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

article p {
  margin-bottom: 1.2rem;
}

.back {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.9rem;
}

footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.85rem;
}