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

body {
  font-family: "Georgia", serif;
  background: #ffffff;
  color: #1a1a1a;
  line-height: 1.7;
}

a {
  color: inherit;
  text-decoration: none;
}

/* ── Layout ── */

header {
  border-bottom: 1px solid #e8e8e8;
  padding: 2rem 0 1.5rem;
  margin-bottom: 3rem;
}

header .inner {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

header h1 {
  font-size: 1.25rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

header h1 a:hover {
  opacity: 0.6;
}

header p {
  font-size: 0.875rem;
  color: #888;
  margin-top: 0.25rem;
}

main {
  max-width: 680px;
  margin: 0 auto;
  padding: 0 1.5rem 6rem;
}

footer {
  border-top: 1px solid #e8e8e8;
  padding: 2rem 0;
  text-align: center;
  font-size: 0.8rem;
  color: #bbb;
}

/* ── Post list ── */

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

.post-list li {
  padding: 2rem 0;
  border-bottom: 1px solid #f0f0f0;
}

.post-list li:last-child {
  border-bottom: none;
}

.post-meta {
  font-size: 0.78rem;
  color: #aaa;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.post-list h2 {
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 0.6rem;
}

.post-list h2 a:hover {
  opacity: 0.55;
}

.post-list p {
  font-size: 0.95rem;
  color: #555;
}

.read-more {
  display: inline-block;
  margin-top: 0.9rem;
  font-size: 0.82rem;
  color: #333;
  border-bottom: 1px solid #333;
  padding-bottom: 1px;
  transition: opacity 0.15s;
}

.read-more:hover {
  opacity: 0.5;
}

/* ── Single post ── */

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

.post-header .post-meta {
  margin-bottom: 0.75rem;
}

.post-header h1 {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.post-body {
  font-size: 1.05rem;
  color: #222;
}

.post-body h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 2.5rem 0 0.75rem;
  letter-spacing: -0.01em;
}

.post-body p {
  margin-bottom: 1.3rem;
}

.post-body ul {
  margin: 0 0 1.3rem 1.5rem;
}

.post-body li {
  margin-bottom: 0.4rem;
}

.post-body strong {
  font-weight: 600;
  color: #111;
}

.post-body table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
  margin: 1.5rem 0 2rem;
}

.post-body th,
.post-body td {
  text-align: left;
  padding: 0.6rem 0.85rem;
  border: 1px solid #e8e8e8;
}

.post-body th {
  background: #fafafa;
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: #666;
}

.post-body tr:hover td {
  background: #fafafa;
}

.back-link {
  display: inline-block;
  margin-bottom: 2rem;
  font-size: 0.82rem;
  color: #888;
  border-bottom: 1px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

.back-link:hover {
  color: #333;
  border-color: #333;
}