/* ============================================
   site.css — single stylesheet for the redesign
   Light + dark via prefers-color-scheme.
   ============================================ */

:root {
  --bg: #fafaf9;
  --text: #111;
  --muted: #6b6b6b;
  --border: #e8e6e1;
  --accent: #0b6cff;
  --hover-bg: #f1efea;
  --code-bg: #f3f1ec;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0f0f10;
    --text: #f4f4f5;
    --muted: #9b9b9b;
    --border: #232325;
    --accent: #7ab8ff;
    --hover-bg: #17171a;
    --code-bg: #17171a;
  }
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { max-width: 100%; height: auto; display: block; }

/* ---------- typography ---------- */
body {
  background: var(--bg);
  color: var(--text);
  font-family: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--text);
  font-weight: 600;
  line-height: 1.25;
  margin: 2em 0 0.6em;
  letter-spacing: -0.01em;
}
h1 { font-size: 28px; }
h2 { font-size: 22px; }
h3 { font-size: 18px; }
h4, h5, h6 { font-size: 16px; }

p, ul, ol, blockquote { margin: 0 0 1em; }

/* ---------- links (visible underline by default) ---------- */
a {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--muted);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: text-decoration-color 80ms ease, color 80ms ease;
}
a:hover {
  text-decoration-color: var(--text);
  text-decoration-thickness: 2px;
}

hr {
  border: 0;
  border-top: 1px solid var(--border);
  margin: 2em 0;
}

blockquote {
  border-left: 3px solid var(--border);
  padding: 0.2em 1em;
  color: var(--muted);
}

code, pre {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 14px;
}
code {
  background: var(--code-bg);
  padding: 0.1em 0.35em;
  border-radius: 3px;
}
pre {
  background: var(--code-bg);
  padding: 14px 16px;
  border-radius: 6px;
  overflow-x: auto;
  margin: 1.2em 0;
}
pre code {
  background: transparent;
  padding: 0;
  border-radius: 0;
}

table {
  border-collapse: collapse;
  width: 100%;
  margin: 1.2em 0;
}
th, td {
  text-align: left;
  padding: 8px 12px;
  border-bottom: 1px solid var(--border);
}
th { font-weight: 600; }

figcaption, .caption {
  color: var(--muted);
  font-size: 14px;
  text-align: center;
  margin-top: 0.4em;
}

/* ---------- page shell ---------- */
.page {
  max-width: 640px;
  margin: 0 auto;
  padding: 48px 24px 24px;
}
@media (max-width: 520px) {
  .page { padding: 32px 20px 16px; }
}

/* ---------- topbar (all pages) ---------- */
.topbar {
  max-width: 640px;
  margin: 0 auto;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.topbar .home {
  font-weight: 600;
  color: var(--text);
  text-decoration: none;
}
.topbar .home:hover {
  text-decoration: underline;
  text-decoration-color: var(--text);
  text-underline-offset: 3px;
}
.topbar nav {
  margin-left: auto;
  display: flex;
  gap: 18px;
  font-size: 14px;
}
.topbar nav a {
  color: var(--muted);
  text-decoration: none;
}
.topbar nav a:hover {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--text);
  text-underline-offset: 3px;
}

/* ---------- identity (home) ---------- */
.identity {
  margin-bottom: 56px;
}
.identity .avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  display: block;
  margin-bottom: 20px;
  border: 1px solid var(--border);
  object-fit: cover;
}
.identity h1.name {
  font-size: 28px;
  line-height: 1.2;
  font-weight: 600;
  margin: 0 0 14px;
  letter-spacing: -0.01em;
}
.identity .intro {
  color: var(--text);
  max-width: 60ch;
  margin: 0 0 20px;
  font-size: 16px;
  line-height: 1.55;
}
.identity .socials {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}
.identity .socials a {
  color: var(--muted);
  text-decoration: none;
}
.identity .socials a:hover {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--muted);
  text-underline-offset: 3px;
}

/* ---------- section labels ---------- */
.section-label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  margin: 0 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.home-section { margin-bottom: 56px; }

/* ---------- writing-list (row list) ---------- */
.writing-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.writing-list li { margin: 0; }
.writing-list a {
  display: grid;
  grid-template-columns: minmax(130px, 180px) 1fr;
  gap: 16px;
  padding: 10px 8px;
  border-radius: 6px;
  text-decoration: none;
  transition: background 80ms ease;
  color: var(--text);
}
.writing-list a:hover {
  background: var(--hover-bg);
  text-decoration: none;
}
.writing-list a strong {
  font-weight: 600;
  color: var(--text);
}
.writing-list a:hover strong {
  text-decoration: underline;
  text-decoration-color: var(--text);
  text-underline-offset: 3px;
}
.writing-list a span {
  color: var(--muted);
}
.writing-list a.title-only {
  display: block;
  padding: 10px 8px;
}

@media (max-width: 520px) {
  .writing-list a {
    grid-template-columns: 1fr;
    gap: 2px;
    padding: 10px 6px;
  }
}

.more-link {
  margin: 14px 8px 0;
  font-size: 14px;
}
.more-link a {
  color: var(--muted);
}
.more-link a:hover {
  color: var(--text);
}

/* ---------- post (essay) ---------- */
.post {
  margin-top: 16px;
}
.post-header {
  margin-bottom: 32px;
}
.post-title {
  font-size: 28px;
  line-height: 1.2;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}
.post-header .meta {
  color: var(--muted);
  font-size: 14px;
  margin: 0;
}
.page-dates {
  color: var(--muted);
  font-size: 13px;
  margin: 0 0 24px;
}
.post-content {
  font-size: 17px;
  line-height: 1.65;
}

.page-title {
  font-size: 28px;
  margin: 0 0 24px;
}

/* ---------- related posts ---------- */
.related-posts {
  margin-top: 64px;
}

/* ---------- footer ---------- */
.site-footer {
  max-width: 640px;
  margin: 32px auto 24px;
  padding: 20px 24px 0;
  border-top: 1px solid var(--border);
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}
.site-footer a {
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--text);
  text-decoration: underline;
  text-decoration-color: var(--muted);
  text-underline-offset: 3px;
}

/* ---------- print ---------- */
@media print {
  :root {
    --bg: #fff;
    --text: #000;
    --muted: #555;
    --border: #ccc;
  }
  .topbar, .identity .socials, .site-footer, .related-posts { display: none; }
  .page { padding: 0; max-width: 100%; }
  a { text-decoration: underline; color: #000; }
}