/* ---------------- Reset ---------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  font-size: 100%;
}

body {
  display: block; 
  margin: 0;
  font-family: ui-serif, Georgia, Cambria, "Times New Roman", Times, serif;
  line-height: 1.75;
  color: #1f2937;
  background-color: #fafafa;
}

/* ---------------- Layout ---------------- */
main {
  display: block; 
  max-width: 44rem;
  margin: 4rem auto;
  padding: 0 1.5rem;
}

/* ---------------- Headings ---------------- */
h1, h2, h3 {
  font-family: system-ui, -apple-system, BlinkMacSystemFont,
               "Segoe UI", sans-serif;
  line-height: 1.25;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2.5rem;
  margin-top: 0;
  margin-bottom: 0.75rem;
}

h2 {
  font-size: 1.6rem;
  margin-top: 3rem;
}

h3 {
  font-size: 1.25rem;
  margin-top: 2rem;
}

/* ---------------- Meta ---------------- */
.post-meta {
  color: #6b7280;
  font-size: 0.9rem;
  margin-bottom: 2.5rem;
}

/* ---------------- Content ---------------- */
p {
  margin: 1.25rem 0;
}

.post {
  padding-bottom: 4rem;
  border-bottom: 1px solid #e5e7eb;
  margin-bottom: 4rem;
}

/* ---------------- Links ---------------- */
a {
  color: #2563eb;
  text-decoration: none;
  border-bottom: 1px solid currentColor;
}

a:hover {
  color: #1e40af;
}

/* ---------------- Quotes ---------------- */
blockquote {
  margin: 2.5rem 0;
  padding-left: 1.5rem;
  border-left: 4px solid #d1d5db;
  color: #374151;
  font-style: italic;
}

/* ---------------- Lists ---------------- */
ul, ol {
  margin: 1.5rem 0;
  padding-left: 1.5rem;
}

li {
  margin: 0.5rem 0;
}

/* ---------------- Code ---------------- */
code {
  background: #f3f4f6;
  padding: 0.2em 0.4em;
  border-radius: 4px;
  font-size: 0.9em;
}

pre {
  background: #f3f4f6;
  padding: 1.25rem;
  overflow-x: auto;
  border-radius: 6px;
  margin: 2rem 0;
}

pre code {
  background: none;
  padding: 0;
}

/* ---------------- Footer ---------------- */
footer {
  margin: 6rem 0 2rem;
  font-size: 0.9rem;
  color: #6b7280;
  text-align: center;
}

/* ---------------- Dark Mode ---------------- */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #0f172a;
    color: #e5e7eb;
  }

  .post {
    border-color: #334155;
  }

  a {
    color: #93c5fd;
  }

  blockquote {
    border-left-color: #475569;
    color: #cbd5f5;
  }

  code,
  pre {
    background: #020617;
  }
}