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

:root {
  --text: #1a1a1a;
  --muted: #666;
  --border: #e0e0e0;
  --bg: #fff;
  --accent: #1a1a1a;
}

[data-theme="dark"] {
  --bg: #1a1917;
  --border: #333129;
  --text: #f0f0f0;
  --muted: #888;
  --accent: #3b82f6;
}

[data-theme="light"] {
  --bg: #f5f5f5;
  --border: #e8e8e8;
  --text: #333;
  --muted: #666;
  --accent: #2563eb;
}

body {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 17px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  max-width: 680px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Header */
header {
  padding: 24px 0 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.home-link {
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  color: var(--text);
  letter-spacing: 0.02em;
}
header nav a {
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}
header nav a:hover { color: var(--text); }

/* Newsletter index */
.newsletter-index h1 {
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 8px;
}
.tagline {
  font-style: italic;
  color: var(--muted);
  margin-bottom: 24px;
}
.description {
  margin-bottom: 40px;
  color: var(--text);
}

/* Subscribe form */
.subscribe-form {
  border: 1px solid var(--border);
  padding: 24px;
  border-radius: 4px;
  margin-bottom: 48px;
  background: #fafafa;
}
.subscribe-form h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
  font-family: -apple-system, system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.subscribe-form form {
  display: flex;
  gap: 8px;
}
.subscribe-form input[type="email"] {
  flex: 1;
  padding: 8px 12px;
  border: 1px solid #ccc;
  border-radius: 3px;
  font-size: 15px;
  font-family: inherit;
}
.subscribe-form button, .subscribe-btn {
  padding: 8px 20px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  font-size: 14px;
  font-family: -apple-system, system-ui, sans-serif;
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
}

/* Issue list */
.issue-list h2 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
  font-family: -apple-system, system-ui, sans-serif;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
}
.issue-item {
  display: flex;
  gap: 16px;
  align-items: baseline;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
.issue-item time {
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 13px;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
}
.issue-item a {
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
}
.issue-item a:hover { text-decoration: underline; }
.empty-state { color: var(--muted); font-style: italic; font-size: 15px; }

/* Issue page */
.issue time {
  display: block;
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 13px;
  color: var(--muted);
  margin-bottom: 16px;
}
.issue .greeting {
  margin-bottom: 40px;
  color: var(--text);
}
.items { }
.item {
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border);
}
.item:last-child { border-bottom: none; }
.category {
  display: block;
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 8px;
}
.sentence {
  font-size: 1.15rem;
  margin-bottom: 10px;
  line-height: 1.5;
}
.item a {
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid var(--border);
  padding-bottom: 1px;
}
.item a:hover { color: var(--text); border-color: var(--text); }

/* Deep page */
.deep-page .breadcrumb {
  margin-bottom: 32px;
}
.deep-page .breadcrumb a {
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}
.deep-page .breadcrumb a:hover { color: var(--text); }
.deep-page h1 {
  font-size: 1.6rem;
  line-height: 1.3;
  margin: 12px 0 32px;
}
.deep-page .content p {
  margin-bottom: 1.2em;
}

/* Footer */
footer {
  margin-top: 64px;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  font-family: -apple-system, system-ui, sans-serif;
  font-size: 13px;
  color: var(--muted);
}
.subscribe-cta {
  margin-bottom: 16px;
}
.subscribe-cta p {
  font-style: italic;
  margin-bottom: 8px;
}
.issue-nav { margin-top: 8px; }
.issue-nav a {
  font-size: 13px;
  color: var(--muted);
  text-decoration: none;
}
.issue-nav a:hover { color: var(--text); }

a { color: inherit; }