/* LinkedIn Archive — default theme
   Design goals: readable, editorial, fast, accessible. No frameworks. */

:root {
  --accent: #0a66c2;
  --bg: #ffffff;
  --bg-subtle: #f5f6f8;
  --bg-card: #ffffff;
  --text: #1a1a1a;
  --text-muted: #5b6470;
  --border: #e2e5ea;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
  --radius: 10px;
  --max-width: 880px;
  --shadow: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 6px rgba(15, 23, 42, 0.05);
}

[data-theme="dark"] {
  --bg: #0f1115;
  --bg-subtle: #161920;
  --bg-card: #171a21;
  --text: #eaecef;
  --text-muted: #9aa4b2;
  --border: #262b34;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 8px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0f1115;
    --bg-subtle: #161920;
    --bg-card: #171a21;
    --text: #eaecef;
    --text-muted: #9aa4b2;
    --border: #262b34;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 1px 8px rgba(0, 0, 0, 0.35);
  }
}

* { box-sizing: border-box; }

html { color-scheme: light dark; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--accent);
  color: #fff;
  padding: 0.5rem 1rem;
  z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0);
  white-space: nowrap; border: 0;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 1.25rem;
}
.site-title {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  margin-right: auto;
}
.site-title:hover { text-decoration: none; opacity: 0.85; }
.site-nav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.site-nav a { color: var(--text-muted); font-size: 0.92rem; }
.site-nav a:hover { color: var(--text); text-decoration: none; }
.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 999px;
  width: 2.1rem;
  height: 2.1rem;
  cursor: pointer;
  color: var(--text);
  font-size: 1rem;
}
.theme-toggle:hover { background: var(--bg-subtle); }

@media (max-width: 640px) {
  .site-nav { display: none; }
  .site-nav.open { display: flex; flex-direction: column; width: 100%; }
  .header-row { flex-wrap: wrap; }
}

/* Hero */
.hero { padding: 2.5rem 0 1.5rem; }
.hero-avatar { border-radius: 999px; object-fit: cover; margin-bottom: 1rem; }
.hero h1 { margin: 0 0 0.25rem; font-size: 2rem; }
.hero-headline { color: var(--text-muted); font-size: 1.1rem; margin: 0 0 0.75rem; }
.hero-bio { max-width: 60ch; }
.hero-actions { display: flex; gap: 0.6rem; flex-wrap: wrap; margin-top: 1rem; }

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.9rem;
}
.btn:hover { background: var(--bg-subtle); text-decoration: none; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { opacity: 0.9; background: var(--accent); }

/* Sections */
section { margin: 2.5rem 0; }
.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}
.section-header h1, .section-header h2 { margin: 0; }

/* Post grid & cards */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.1rem;
}
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.1rem 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  box-shadow: var(--shadow);
}
.post-card-meta { color: var(--text-muted); font-size: 0.82rem; display: flex; gap: 0.4rem; align-items: center; }
.post-card-title { margin: 0; font-size: 1.05rem; line-height: 1.35; }
.post-card-title a { color: var(--text); }
.post-card-excerpt { color: var(--text-muted); font-size: 0.92rem; margin: 0; }
.post-card-footer { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-top: auto; }

/* Badges & chips */
.badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  background: var(--bg-subtle);
  color: var(--text);
  border: 1px solid var(--border);
}
.badge-category { color: var(--accent); border-color: color-mix(in srgb, var(--accent) 40%, var(--border)); }
.badge-featured { background: var(--accent); color: #fff; border-color: var(--accent); }
.chip {
  display: inline-block;
  font-size: 0.78rem;
  padding: 0.22rem 0.65rem;
  border-radius: 999px;
  background: var(--bg-subtle);
  color: var(--text-muted);
  border: 1px solid var(--border);
}
.chip:hover { color: var(--text); text-decoration: none; }
.chip-lg { font-size: 0.92rem; padding: 0.4rem 0.9rem; }
.chip-count { color: var(--text-muted); font-size: 0.8em; }
.tag-cloud { display: flex; flex-wrap: wrap; gap: 0.5rem; }

/* Post page */
.post-header h1 { margin: 0.5rem 0 0.5rem; font-size: 2rem; line-height: 1.25; }
.post-meta { color: var(--text-muted); font-size: 0.9rem; display: flex; gap: 0.4rem; flex-wrap: wrap; }
.prose { max-width: 68ch; font-size: 1.05rem; }
.prose p { margin: 1.1em 0; }
.prose img { max-width: 100%; height: auto; border-radius: var(--radius); }
.prose pre {
  background: var(--bg-subtle);
  padding: 1rem;
  border-radius: var(--radius);
  overflow-x: auto;
}
.prose code { font-family: var(--font-mono); font-size: 0.9em; }
.prose blockquote {
  border-left: 3px solid var(--accent);
  margin: 1.2em 0;
  padding-left: 1rem;
  color: var(--text-muted);
}
.post-media { display: grid; gap: 0.75rem; margin: 1.5rem 0; }
.post-media img, .post-media video { width: 100%; border-radius: var(--radius); }
.post-footer { margin-top: 2rem; padding-top: 1rem; border-top: 1px solid var(--border); }
.post-source { margin-top: 0.75rem; }
.category-description { color: var(--text-muted); max-width: 60ch; }

.post-neighbors {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 2.5rem 0;
}
.post-neighbor {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  color: var(--text);
}
.post-neighbor:hover { background: var(--bg-subtle); text-decoration: none; }
.post-neighbor-next { text-align: right; }
.post-neighbor-label { font-size: 0.8rem; color: var(--text-muted); }
.post-neighbor-title { font-weight: 600; }

/* Archive */
.archive-tree { display: grid; gap: 1.5rem; }
.archive-year h2 { margin-bottom: 0.4rem; }
.archive-months { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 0.6rem; }
.archive-months li {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.8rem;
  font-size: 0.88rem;
}

/* Pagination */
.pagination {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  gap: 1rem;
  flex-wrap: wrap;
}
.pagination-status { color: var(--text-muted); font-size: 0.88rem; }

/* Search */
.search-form { margin-bottom: 1rem; }
#search-input {
  width: 100%;
  font-size: 1.1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
}
.search-help { color: var(--text-muted); font-size: 0.85rem; margin: 0.4rem 0 0; }
.search-filters {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1rem 0 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}
.search-filters select {
  display: block;
  margin-top: 0.2rem;
  padding: 0.35rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
}
.search-status { color: var(--text-muted); font-size: 0.9rem; }
.search-results { list-style: none; padding: 0; margin: 0; display: grid; gap: 0.9rem; }
.search-result {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  background: var(--bg-card);
}
.search-result h3 { margin: 0 0 0.3rem; font-size: 1.05rem; }
.search-result-meta { color: var(--text-muted); font-size: 0.8rem; margin-bottom: 0.4rem; }
.search-result mark { background: color-mix(in srgb, var(--accent) 30%, transparent); color: inherit; }

/* Footer */
.site-footer { border-top: 1px solid var(--border); margin-top: 3rem; color: var(--text-muted); font-size: 0.85rem; }
.footer-row { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.5rem; padding: 1.5rem 1.25rem; }
.footer-links a { margin-left: 0.75rem; }

.not-found { padding: 4rem 0; text-align: center; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
}