/* ============================================================
   Base
   ============================================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
}

body {
  background-color: #fafafa;
  color: #1a1a1a;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.7;
  padding: 3rem 1.5rem 6rem;
}

/* ============================================================
   Layout
   ============================================================ */

.container {
  max-width: 640px;
  margin: 0 auto;
}

/* ============================================================
   Typography
   ============================================================ */

h1 {
  font-size: 1.4rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 0.25rem;
}

p {
  margin-bottom: 1rem;
}

/* ============================================================
   Links
   ============================================================ */

a {
  color: #1a1a1a;
  text-decoration: underline;
  text-underline-offset: 3px;
}

a:hover {
  color: #555;
}

/* ============================================================
   Navigation
   ============================================================ */

nav {
  margin: 2rem 0 3rem;
}

nav a {
  margin-right: 1.5rem;
  text-decoration: none;
  font-size: 0.95rem;
  color: #555;
}

nav a:hover {
  color: #1a1a1a;
}

nav a.active {
  color: #1a1a1a;
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============================================================
   Back link
   ============================================================ */

.back {
  display: inline-block;
  font-size: 0.85rem;
  color: #888;
  text-decoration: none;
  margin-bottom: 2.5rem;
}

.back:hover {
  color: #1a1a1a;
}

/* ============================================================
   Blog listing
   ============================================================ */

.post-list {
  list-style: none;
}

.post-list li {
  padding: 0.4rem 0;
  display: flex;
  gap: 1rem;
  align-items: baseline;
}

.post-list .date {
  font-size: 0.82rem;
  color: #aaa;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ============================================================
   Blog post
   ============================================================ */

.post-header {
  margin-bottom: 2.5rem;
}

.post-header h1 {
  font-size: 1.6rem;
  margin-bottom: 0.4rem;
}

.post-meta {
  font-size: 0.82rem;
  color: #aaa;
}

.post-body p {
  margin-bottom: 1.2rem;
}

.post-footer {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid #e8e8e8;
}