:root {
  --bg: #fafafa;
  --text: #1f1f1f;
  --muted: #666;
  --border: #e5e5e5;
  --accent: #2563eb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
  line-height: 1.6;
}

main {
  max-width: 760px;
  margin: 0 auto;
  padding: 72px 24px;
}

header {
  margin-bottom: 56px;
}

h1 {
  font-size: 2.4rem;
  line-height: 1.1;
  margin: 0 0 12px;
  letter-spacing: -0.04em;
}

.subtitle {
  font-size: 1.05rem;
  color: var(--muted);
  max-width: 620px;
  margin-bottom: 18px;
}

nav {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-size: 0.95rem;
}

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

a:hover {
  text-decoration: underline;
}

section {
  margin-bottom: 48px;
}

h2 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  font-weight: 600;
  margin-bottom: 18px;
}

.item {
  padding: 18px 0;
  border-top: 1px solid var(--border);
}

.item:first-of-type {
  border-top: none;
  padding-top: 0;
}

.item-header {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: baseline;
  margin-bottom: 4px;
}

.item-title {
  font-weight: 600;
}

.item-meta {
  color: var(--muted);
  font-size: 0.9rem;
  white-space: nowrap;
}

p {
  margin: 0 0 12px;
}

.item p {
  color: #333;
  margin-bottom: 8px;
}

.tags {
  color: var(--muted);
  font-size: 0.9rem;
}

footer {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 600px) {
  main {
    padding: 48px 20px;
  }

  h1 {
    font-size: 2rem;
  }

  .item-header {
    flex-direction: column;
    gap: 2px;
  }

  .item-meta {
    white-space: normal;
  }
}