:root {
  color-scheme: light;
  --bg: #f8f7f3;
  --paper: #ffffff;
  --text: #1f252d;
  --muted: #65707d;
  --line: #dfe3e7;
  --accent: #0f766e;
  --accent-strong: #0b4f4a;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
}

a {
  color: var(--accent-strong);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 24px;
}

.brand {
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

nav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 15px;
}

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

nav a:hover {
  color: var(--accent-strong);
}

.layout {
  max-width: 980px;
  margin: 0 auto;
  padding: 36px 24px 64px;
}

.layout.narrow {
  max-width: 760px;
}

.intro {
  max-width: 780px;
  padding: 52px 0 38px;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.kicker,
.date {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0;
}

h1 {
  margin: 0 0 18px;
  font-size: clamp(34px, 6vw, 56px);
  line-height: 1.08;
  letter-spacing: 0;
}

h2 {
  margin: 0 0 10px;
  font-size: 24px;
  line-height: 1.25;
  letter-spacing: 0;
}

.intro p,
.prose p,
.post-list p {
  color: var(--muted);
}

.intro p {
  max-width: 660px;
  margin: 0;
  font-size: 18px;
}

.post-list {
  display: grid;
  gap: 24px;
  padding-top: 36px;
}

.post-list article {
  padding: 24px;
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 8px;
}

.post-list p {
  margin: 0;
}

.post-list h2 a {
  color: var(--text);
}

.archive {
  padding: 0;
  margin: 28px 0 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.archive li {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 18px;
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.archive time {
  color: var(--muted);
}

.prose {
  font-size: 18px;
}

.prose p {
  margin: 0 0 18px;
}

.prose h1 {
  font-size: 42px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  max-width: 980px;
  margin: 0 auto;
  padding: 28px 24px 40px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 640px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .layout {
    padding-top: 20px;
  }

  .intro {
    padding: 36px 0 28px;
  }

  .archive li {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}