:root {
  color-scheme: light;
  --bg: #f7f8fb;
  --surface: #ffffff;
  --ink: #20242c;
  --muted: #667085;
  --line: #d9dee8;
  --accent: #1f7a5b;
  --accent-2: #315f9f;
  --code: #eef3f1;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.62;
}

a {
  color: var(--accent-2);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.site-header {
  background: var(--surface);
  border-bottom: 1px solid var(--line);
}

.wrap {
  width: min(1080px, calc(100% - 32px));
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 68px;
  gap: 24px;
}

.brand {
  font-weight: 700;
  color: var(--ink);
  letter-spacing: 0;
}

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

.hero {
  padding: 56px 0 34px;
}

.hero h1 {
  margin: 0 0 14px;
  font-size: clamp(32px, 5vw, 54px);
  line-height: 1.08;
  letter-spacing: 0;
}

.hero p {
  max-width: 720px;
  color: var(--muted);
  font-size: 18px;
  margin: 0;
}

.grid {
  display: grid;
  grid-template-columns: 1.5fr 0.8fr;
  gap: 28px;
  align-items: start;
  padding: 18px 0 56px;
}

.post-list {
  display: grid;
  gap: 16px;
}

.post-card,
.panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px;
}

.post-card h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.meta {
  color: var(--muted);
  font-size: 14px;
  margin-bottom: 12px;
}

.tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 14px;
}

.tag {
  color: #285b48;
  background: #e7f2ed;
  border: 1px solid #cae3d7;
  border-radius: 999px;
  padding: 2px 9px;
  font-size: 13px;
}

.panel h3 {
  margin: 0 0 12px;
  font-size: 18px;
}

.panel ul {
  margin: 0;
  padding-left: 18px;
}

.panel + .panel {
  margin-top: 16px;
}

.article {
  max-width: 820px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 8px;
  margin: 34px auto 56px;
  padding: 34px;
}

.article h1 {
  margin: 0 0 12px;
  font-size: clamp(30px, 4vw, 44px);
  line-height: 1.12;
}

.article h2 {
  margin-top: 32px;
}

code,
pre {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

code {
  background: var(--code);
  padding: 2px 5px;
  border-radius: 4px;
}

pre {
  background: #17201d;
  color: #e8f3ee;
  border-radius: 8px;
  padding: 16px;
  overflow-x: auto;
}

.site-footer {
  border-top: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  padding: 24px 0;
  font-size: 14px;
}

@media (max-width: 760px) {
  .nav {
    align-items: flex-start;
    flex-direction: column;
    padding: 16px 0;
  }

  .grid {
    grid-template-columns: 1fr;
  }

  .article {
    margin: 20px 16px 40px;
    padding: 22px;
  }
}