/* ===== Views / Blog — Substack-style ===== */
/* Light theme, standalone — loaded only on views.html */

:root {
  --blog-bg: #ffffff;
  --blog-surface: #f9f9f7;
  --blog-border: #e8e8e4;
  --blog-border-subtle: #f0f0ec;
  --blog-text: #1a1a18;
  --blog-text-secondary: #555550;
  --blog-text-muted: #999990;
  --blog-accent: #7c6af7;
  --blog-accent-hover: #6355e0;
  --blog-accent-dim: rgba(124, 106, 247, 0.08);
  --blog-font-body: 'Lora', Georgia, 'Times New Roman', serif;
  --blog-font-ui: 'Inter', -apple-system, sans-serif;
  --blog-font-mono: 'JetBrains Mono', monospace;
  --blog-max-prose: 680px;
  --blog-radius: 8px;
  --blog-transition: 0.18s ease;
}

/* ===== Reset for blog page ===== */
body.blog-page {
  background: var(--blog-bg);
  color: var(--blog-text);
  font-family: var(--blog-font-ui);
  -webkit-font-smoothing: antialiased;
}

body.blog-page ::selection {
  background: rgba(124, 106, 247, 0.15);
  color: var(--blog-accent);
}

/* ===== Blog Nav ===== */
body.blog-page nav {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
}

body.blog-page nav.scrolled {
  border-bottom-color: var(--blog-border);
}

body.blog-page .nav-logo {
  color: var(--blog-text);
}

body.blog-page .nav-logo span {
  color: var(--blog-accent);
}

body.blog-page .nav-links a {
  color: var(--blog-text-secondary);
}

body.blog-page .nav-links a:hover,
body.blog-page .nav-links a.active {
  color: var(--blog-text);
  background: var(--blog-border-subtle);
}

body.blog-page .nav-links .views-link {
  color: var(--blog-accent);
  border-color: rgba(124, 106, 247, 0.2);
  background: var(--blog-accent-dim);
}

body.blog-page .nav-links .views-link:hover {
  background: var(--blog-accent);
  color: white;
}

body.blog-page .nav-toggle {
  color: var(--blog-text);
}

body.blog-page .mobile-menu {
  background: rgba(255, 255, 255, 0.97);
  border-bottom-color: var(--blog-border);
}

body.blog-page .mobile-menu a {
  color: var(--blog-text-secondary);
}

body.blog-page .mobile-menu a:hover {
  color: var(--blog-text);
  background: var(--blog-border-subtle);
}

/* ===== Blog Header / Banner ===== */
.blog-header {
  padding: 100px 0 60px;
  border-bottom: 1px solid var(--blog-border);
}

.blog-publication {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 28px;
}

.blog-avatar {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--blog-accent), #a395fa);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.3rem;
  font-weight: 700;
  font-family: var(--blog-font-ui);
  flex-shrink: 0;
}

.blog-pub-info h1 {
  font-family: var(--blog-font-ui);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--blog-text);
  letter-spacing: -0.01em;
  margin-bottom: 2px;
}

.blog-pub-info span {
  font-size: 0.85rem;
  color: var(--blog-text-muted);
}

.blog-description {
  font-family: var(--blog-font-ui);
  font-size: 1.1rem;
  color: var(--blog-text-secondary);
  max-width: 560px;
  line-height: 1.65;
  margin-bottom: 24px;
}

.blog-stats {
  display: flex;
  gap: 24px;
  align-items: center;
}

.blog-stat {
  font-size: 0.85rem;
  color: var(--blog-text-muted);
}

.blog-stat strong {
  color: var(--blog-text-secondary);
  font-weight: 600;
}

/* ===== Tag Filter Bar ===== */
.tag-bar {
  padding: 20px 0;
  border-bottom: 1px solid var(--blog-border);
  position: sticky;
  top: 64px;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  z-index: 50;
}

.tag-bar-inner {
  display: flex;
  gap: 8px;
  align-items: center;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.tag-bar-inner::-webkit-scrollbar { display: none; }

.tag-pill {
  font-family: var(--blog-font-ui);
  font-size: 0.8rem;
  font-weight: 500;
  padding: 5px 14px;
  border-radius: 100px;
  border: 1px solid var(--blog-border);
  color: var(--blog-text-secondary);
  background: transparent;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--blog-transition);
}

.tag-pill:hover {
  border-color: var(--blog-accent);
  color: var(--blog-accent);
}

.tag-pill.active {
  background: var(--blog-accent);
  border-color: var(--blog-accent);
  color: white;
}

/* ===== Post Listing ===== */
.blog-listing {
  padding: 48px 0 80px;
}

.featured-post {
  border-bottom: 1px solid var(--blog-border);
  padding-bottom: 48px;
  margin-bottom: 48px;
  cursor: pointer;
}

.featured-post:hover .featured-title {
  color: var(--blog-accent);
}

.featured-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--blog-font-ui);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--blog-accent);
  margin-bottom: 16px;
}

.featured-title {
  font-family: var(--blog-font-ui);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--blog-text);
  line-height: 1.2;
  margin-bottom: 16px;
  transition: color var(--blog-transition);
}

.featured-summary {
  font-family: var(--blog-font-ui);
  font-size: 1.05rem;
  color: var(--blog-text-secondary);
  line-height: 1.7;
  max-width: 620px;
  margin-bottom: 20px;
}

.post-byline {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.byline-avatar {
  width: 28px;
  height: 28px;
  background: linear-gradient(135deg, var(--blog-accent), #a395fa);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  flex-shrink: 0;
}

.byline-author {
  font-family: var(--blog-font-ui);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--blog-text);
}

.byline-sep {
  color: var(--blog-border);
}

.byline-date {
  font-family: var(--blog-font-ui);
  font-size: 0.875rem;
  color: var(--blog-text-muted);
}

.byline-read-time {
  font-family: var(--blog-font-ui);
  font-size: 0.875rem;
  color: var(--blog-text-muted);
}

.post-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 16px;
}

.post-tag-pill {
  font-family: var(--blog-font-ui);
  font-size: 0.75rem;
  padding: 3px 10px;
  border-radius: 100px;
  border: 1px solid var(--blog-border);
  color: var(--blog-text-muted);
}

/* ===== Post Grid ===== */
.posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 0;
}

.post-item {
  padding: 28px 0;
  border-bottom: 1px solid var(--blog-border);
  cursor: pointer;
  transition: background var(--blog-transition);
}

.post-item:hover .post-item-title {
  color: var(--blog-accent);
}

.post-item-date {
  font-family: var(--blog-font-ui);
  font-size: 0.78rem;
  color: var(--blog-text-muted);
  margin-bottom: 8px;
  letter-spacing: 0.02em;
}

.post-item-title {
  font-family: var(--blog-font-ui);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--blog-text);
  line-height: 1.35;
  margin-bottom: 8px;
  transition: color var(--blog-transition);
  letter-spacing: -0.01em;
}

.post-item-summary {
  font-family: var(--blog-font-ui);
  font-size: 0.9rem;
  color: var(--blog-text-secondary);
  line-height: 1.6;
  /* 3-line clamp */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-item-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 12px;
}

.post-item-read {
  font-family: var(--blog-font-ui);
  font-size: 0.8rem;
  color: var(--blog-accent);
  font-weight: 500;
}

/* When list layout (not grid) */
.posts-list-layout .post-item {
  border-left: none;
  border-right: none;
  border-radius: 0;
}

/* ===== Empty state ===== */
.blog-empty {
  text-align: center;
  padding: 80px 24px;
}

.blog-empty .icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
}

.blog-empty h3 {
  font-family: var(--blog-font-ui);
  font-size: 1.25rem;
  color: var(--blog-text);
  margin-bottom: 8px;
}

.blog-empty p {
  font-family: var(--blog-font-ui);
  font-size: 0.9rem;
  color: var(--blog-text-muted);
  max-width: 360px;
  margin: 0 auto;
  line-height: 1.6;
}

/* ===== Individual Post View ===== */
#post-view {
  display: none;
}

#post-view.active {
  display: block;
}

#listing-view.hidden {
  display: none;
}

.post-nav {
  padding: 80px 0 40px;
  border-bottom: 1px solid var(--blog-border);
  margin-bottom: 48px;
}

.post-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--blog-font-ui);
  font-size: 0.875rem;
  color: var(--blog-text-muted);
  cursor: pointer;
  border: none;
  background: none;
  padding: 0;
  transition: color var(--blog-transition);
  margin-bottom: 40px;
}

.post-back:hover {
  color: var(--blog-accent);
}

.post-header {
  max-width: var(--blog-max-prose);
  margin: 0 auto;
}

.post-header-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.post-header-tag {
  font-family: var(--blog-font-ui);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--blog-accent);
}

.post-header-tag + .post-header-tag::before {
  content: ' · ';
  color: var(--blog-text-muted);
  font-weight: 400;
}

.post-full-title {
  font-family: var(--blog-font-ui);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--blog-text);
  line-height: 1.15;
  margin-bottom: 20px;
}

.post-full-summary {
  font-family: var(--blog-font-ui);
  font-size: 1.15rem;
  color: var(--blog-text-secondary);
  line-height: 1.6;
  margin-bottom: 28px;
  font-style: italic;
}

.post-full-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--blog-border);
}

/* ===== Prose (post body) ===== */
.prose-container {
  max-width: var(--blog-max-prose);
  margin: 0 auto;
  padding: 48px 0 80px;
}

.prose {
  font-family: var(--blog-font-body);
  font-size: 1.125rem;
  line-height: 1.85;
  color: var(--blog-text);
}

.prose p {
  margin-bottom: 1.5em;
}

.prose p:last-child {
  margin-bottom: 0;
}

.prose h2 {
  font-family: var(--blog-font-ui);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--blog-text);
  letter-spacing: -0.02em;
  margin: 2.5em 0 0.75em;
  line-height: 1.25;
}

.prose h3 {
  font-family: var(--blog-font-ui);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--blog-text);
  letter-spacing: -0.01em;
  margin: 2em 0 0.6em;
  line-height: 1.3;
}

.prose h4 {
  font-family: var(--blog-font-ui);
  font-size: 1rem;
  font-weight: 700;
  color: var(--blog-text);
  margin: 1.75em 0 0.5em;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.prose ul, .prose ol {
  padding-left: 1.5em;
  margin: 0 0 1.5em;
}

.prose li {
  margin-bottom: 0.5em;
  line-height: 1.75;
}

.prose li:last-child { margin-bottom: 0; }

.prose strong {
  font-weight: 700;
  color: var(--blog-text);
}

.prose em {
  font-style: italic;
}

.prose a {
  color: var(--blog-accent);
  text-decoration: underline;
  text-decoration-color: rgba(124, 106, 247, 0.3);
  text-underline-offset: 3px;
  transition: all var(--blog-transition);
}

.prose a:hover {
  color: var(--blog-accent-hover);
  text-decoration-color: var(--blog-accent-hover);
}

.prose blockquote {
  border-left: 3px solid var(--blog-accent);
  padding: 4px 0 4px 24px;
  margin: 2em 0;
  color: var(--blog-text-secondary);
  font-style: italic;
}

.prose blockquote p { margin: 0; }

.prose code {
  font-family: var(--blog-font-mono);
  font-size: 0.875em;
  background: var(--blog-surface);
  border: 1px solid var(--blog-border);
  padding: 2px 6px;
  border-radius: 4px;
  color: var(--blog-text);
}

.prose pre {
  background: #1a1a1a;
  border-radius: var(--blog-radius);
  padding: 20px 24px;
  overflow-x: auto;
  margin: 1.5em 0;
}

.prose pre code {
  background: none;
  border: none;
  padding: 0;
  color: #e2e8f0;
  font-size: 0.875rem;
  line-height: 1.7;
}

.prose hr {
  border: none;
  border-top: 1px solid var(--blog-border);
  margin: 3em 0;
}

.prose img {
  max-width: 100%;
  border-radius: var(--blog-radius);
  margin: 1.5em 0;
}

/* Post footer */
.prose-footer {
  max-width: var(--blog-max-prose);
  margin: 0 auto;
  padding: 32px 0 80px;
  border-top: 1px solid var(--blog-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.prose-footer-left {
  display: flex;
  align-items: center;
  gap: 10px;
}

.prose-share {
  display: flex;
  align-items: center;
  gap: 8px;
}

.share-btn {
  font-family: var(--blog-font-ui);
  font-size: 0.82rem;
  color: var(--blog-text-muted);
  background: none;
  border: 1px solid var(--blog-border);
  padding: 6px 14px;
  border-radius: 100px;
  cursor: pointer;
  transition: all var(--blog-transition);
}

.share-btn:hover {
  color: var(--blog-text);
  border-color: var(--blog-text-secondary);
}

/* ===== Blog Footer ===== */
.blog-footer {
  background: var(--blog-surface);
  border-top: 1px solid var(--blog-border);
  padding: 40px 0;
}

.blog-footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.blog-footer-copy {
  font-family: var(--blog-font-ui);
  font-size: 0.85rem;
  color: var(--blog-text-muted);
}

.blog-footer-links {
  display: flex;
  gap: 20px;
}

.blog-footer-links a {
  font-family: var(--blog-font-ui);
  font-size: 0.85rem;
  color: var(--blog-text-muted);
  text-decoration: none;
  transition: color var(--blog-transition);
}

.blog-footer-links a:hover {
  color: var(--blog-text-secondary);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .blog-header { padding: 88px 0 40px; }
  .featured-title { font-size: 1.8rem; }
  .post-full-title { font-size: 1.9rem; }
  .prose { font-size: 1.05rem; }
  .prose-container { padding: 32px 0 60px; }
  .posts-grid { grid-template-columns: 1fr; }
  .prose-footer { flex-direction: column; }
  .blog-footer-inner { flex-direction: column; text-align: center; }
}

/* ===== Loading skeleton ===== */
@keyframes shimmer {
  0% { background-position: -600px 0; }
  100% { background-position: 600px 0; }
}

.skeleton {
  background: linear-gradient(90deg, var(--blog-border-subtle) 25%, var(--blog-border) 50%, var(--blog-border-subtle) 75%);
  background-size: 600px 100%;
  animation: shimmer 1.5s infinite;
  border-radius: 4px;
}

.skeleton-line { height: 16px; margin-bottom: 10px; }
.skeleton-line.wide { width: 80%; }
.skeleton-line.narrow { width: 40%; }
.skeleton-title { height: 28px; margin-bottom: 12px; width: 70%; }