:root {
  --bg: #fafaf7;
  --ink: #1a1a1a;
  --ink-soft: #555;
  --ink-mute: #888;
  --line: #e5e5e0;
  --accent: #2c5f5d;
  --accent-soft: #d8e8e7;
  --warn: #c4477a;
  --max-w: 880px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, "Pretendard", "Inter", "Segoe UI", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--ink); text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--accent); }

.site-header {
  display: flex; justify-content: space-between; align-items: baseline;
  padding: 24px 32px;
  border-bottom: 1px solid var(--line);
  max-width: 1400px; margin: 0 auto;
}
.brand {
  font-weight: 600; font-size: 18px; letter-spacing: -0.01em;
  text-decoration: none;
}
.site-nav { display: flex; gap: 24px; align-items: baseline; }
.site-nav a { font-size: 14px; text-decoration: none; color: var(--ink-soft); }
.site-nav a:hover, .site-nav a[aria-current="page"] { color: var(--ink); }
.site-nav a.lang-toggle {
  font-size: 12px;
  padding: 3px 10px;
  border: 1px solid var(--line);
  border-radius: 2px;
  color: var(--ink-mute);
  margin-left: 4px;
  letter-spacing: 0.05em;
}
.site-nav a.lang-toggle:hover { color: var(--ink); border-color: var(--ink-soft); }

main.landing { max-width: var(--max-w); margin: 0 auto; padding: 80px 32px; }
main.prose { max-width: var(--max-w); margin: 0 auto; padding: 64px 32px; }

.kicker {
  font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--ink-mute); margin: 0 0 12px;
}
h1 { font-size: 42px; line-height: 1.15; margin: 0 0 24px; letter-spacing: -0.02em; font-weight: 600; }
h2 { font-size: 22px; margin: 48px 0 12px; font-weight: 600; }
h3 { font-size: 16px; margin: 32px 0 8px; font-weight: 600; }
.lede { font-size: 19px; line-height: 1.5; color: var(--ink-soft); margin: 0 0 12px; }
.lede.subtle { color: var(--ink-mute); font-size: 16px; }
.meta { color: var(--ink-mute); font-size: 14px; }

.cta-row { display: flex; gap: 16px; margin-top: 32px; flex-wrap: wrap; }
.cta {
  display: inline-block; padding: 12px 20px;
  background: var(--ink); color: var(--bg);
  text-decoration: none; font-size: 14px; font-weight: 500;
  border-radius: 2px;
}
.cta:hover { background: var(--accent); color: var(--bg); }
.cta-secondary { background: transparent; color: var(--ink); border: 1px solid var(--ink); }
.cta-secondary:hover { background: var(--ink); color: var(--bg); }

.filter { margin-top: 80px; padding-top: 48px; border-top: 1px solid var(--line); }
.filter-list { padding-left: 20px; }
.filter-list li { margin-bottom: 8px; }

.subnav { display: flex; gap: 24px; margin: 24px 0 48px; padding: 16px 0; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.subnav a { font-size: 14px; text-decoration: none; color: var(--ink-soft); }
.subnav a:hover, .subnav a[aria-current="page"] { color: var(--ink); }

table.dates { border-collapse: collapse; margin: 16px 0; }
table.dates td { padding: 8px 16px 8px 0; border-bottom: 1px solid var(--line); font-size: 15px; }
table.dates td:first-child { color: var(--ink-mute); font-variant-numeric: tabular-nums; white-space: nowrap; }

code { background: var(--accent-soft); padding: 1px 6px; border-radius: 2px; font-size: 13px; }

.entry { padding: 24px 0; border-bottom: 1px solid var(--line); }
.entry h2 { margin-top: 0; font-size: 18px; color: var(--ink-mute); font-weight: 500; }

.site-footer {
  max-width: 1400px; margin: 0 auto;
  padding: 32px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--ink-mute);
}
.site-footer a { color: var(--ink-mute); }

@media (max-width: 640px) {
  h1 { font-size: 32px; }
  main.landing, main.prose { padding: 48px 20px; }
  .site-header { padding: 16px 20px; }
}