/* ============================================
   Generated Static Pages - Layout & Styles
   ============================================ */

/* Reset for generated pages */
.generated-page {
  margin: 0;
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  -webkit-font-smoothing: antialiased;
}

/* Reading Progress */
.generated-page #reading-progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0%;
  background: linear-gradient(90deg, #8b5cf6 0%, #3b82f6 50%, #10b981 100%);
  z-index: 99999;
  transition: width 0.1s linear;
}

/* ─── Navigation ─── */
.gen-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 56px;
  display: flex;
  align-items: center;
  padding: 0 1.5rem;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  transition: box-shadow 0.3s ease;
}

.gen-nav.scrolled {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.gen-nav-brand {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: color 0.2s;
  flex-shrink: 0;
}

.gen-nav-brand:hover { color: var(--primary); }

.gen-nav-brand span {
  background: none !important;
  -webkit-text-fill-color: inherit !important;
}

.gen-nav-center {
  flex: 1;
  text-align: center;
}

.gen-nav-problem {
  font-family: 'Poppins', sans-serif;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary);
}

.gen-nav-actions {
  display: flex;
  gap: 0.5rem;
  flex-shrink: 0;
}

.gen-nav-btn {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s;
}

.gen-nav-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(59, 130, 246, 0.05);
}

/* ─── Layout ─── */
.gen-layout {
  display: grid;
  grid-template-columns: 170px 1fr 180px;
  max-width: 1500px;
  margin: 0 auto;
  padding-top: 56px;
  min-height: 100vh;
}

.gen-layout--fundamentals {
  grid-template-columns: 1fr 180px;
}

/* ─── Sidebar ─── */
.gen-sidebar {
  position: sticky;
  top: 56px;
  height: calc(100vh - 56px);
  overflow-y: auto;
  padding: 1.25rem 0;
  border-right: 1px solid var(--border-color);
}

.gen-sidebar-header {
  padding: 0 1rem 0.75rem;
  border-bottom: 1px solid var(--border-color);
  margin-bottom: 0.5rem;
}

.gen-sidebar-back {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  text-decoration: none;
  display: block;
  margin-bottom: 0.4rem;
  transition: color 0.2s;
}

.gen-sidebar-back:hover { color: var(--primary); }

.gen-sidebar-title {
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin: 0;
}

.gen-sidebar-files {
  display: flex;
  flex-direction: column;
  padding: 0 0.4rem;
}

.sidebar-file {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.6rem;
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  border-radius: 5px;
  transition: all 0.2s;
  border-left: 2px solid transparent;
}

.sidebar-file:hover {
  background: var(--bg-secondary);
  color: var(--text-primary);
}

.sidebar-file.active {
  background: rgba(59, 130, 246, 0.08);
  color: var(--primary);
  border-left-color: var(--primary);
  font-weight: 500;
}

.sidebar-file-icon {
  font-size: 0.65rem;
  width: 14px;
  text-align: center;
  flex-shrink: 0;
}

/* ─── Main Content ─── */
.gen-main {
  padding: 2rem 3rem 4rem;
  min-width: 0;
}

.gen-main--wide {
  max-width: 1100px;
  margin: 0 auto;
  padding: 2rem 2rem 4rem;
}

.gen-header {
  padding-bottom: 1.5rem;
  margin-bottom: 2rem;
  border-bottom: 1px solid var(--border-color);
}

.gen-header--fundamentals {
  padding-top: 1rem;
}

.gen-breadcrumb {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  margin-bottom: 1rem;
}

.gen-breadcrumb a {
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color 0.2s;
}

.gen-breadcrumb a:hover { color: var(--primary); }

.gen-badge {
  display: inline-flex;
  padding: 0.3rem 0.8rem;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.2);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #a78bfa;
  margin-bottom: 1rem;
}

.gen-title {
  font-family: 'Poppins', sans-serif;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  margin: 0 0 0.75rem;
}

.gen-meta {
  display: flex;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

/* ─── Article ─── */
.gen-article {
  font-size: 0.95rem;
  line-height: 1.8;
  color: var(--text-secondary);
}

.gen-article h1 { display: none; }

.gen-article h2 {
  font-family: 'Poppins', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  padding-top: 0;
  padding-left: 1rem;
  position: relative;
}

.gen-article h2::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.15em;
  bottom: 0.15em;
  width: 4px;
  background: linear-gradient(180deg, #8b5cf6 0%, #3b82f6 100%);
  border-radius: 2px;
}

.gen-article h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.gen-article h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 1.5rem;
}

.gen-article strong { color: var(--text-primary); }

.gen-article a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.gen-article table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  font-size: 0.88rem;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  overflow: hidden;
}

.gen-article th {
  background: var(--bg-secondary);
  padding: 0.7rem 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-color);
}

.gen-article td {
  padding: 0.6rem 1rem;
  border-bottom: 1px solid var(--border-color);
}

.gen-article tr:last-child td { border-bottom: none; }
.gen-article tr:hover td { background: var(--surface-hover); }

.gen-article blockquote {
  border-left: 4px solid #8b5cf6;
  background: rgba(139, 92, 246, 0.05);
  padding: 1rem 1.5rem;
  margin: 1.5rem 0;
  border-radius: 0 8px 8px 0;
}

.gen-article ul, .gen-article ol {
  padding-left: 1.5rem;
  margin: 1rem 0;
}

.gen-article li { margin-bottom: 0.35rem; }

.gen-article hr {
  display: none;
}

/* Hide consecutive hrs and first hr after h1 */
.gen-article hr + hr,
.gen-article h1 + hr {
  display: none;
}

/* Code blocks with copy button */
.code-block {
  position: relative;
  margin: 1.5rem 0;
}

.copy-btn {
  position: absolute;
  top: 0.6rem;
  right: 0.75rem;
  padding: 0.25rem 0.6rem;
  font-size: 0.7rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: all 0.2s;
  z-index: 2;
}

.copy-btn:hover {
  background: rgba(255, 255, 255, 0.15);
  color: var(--text-primary);
}

.copy-btn.copied {
  background: rgba(16, 185, 129, 0.2);
  border-color: #10b981;
  color: #10b981;
}

.gen-article pre {
  border-radius: 10px;
  border: 1px solid var(--border-color);
  overflow-x: auto;
}

.gen-article code:not(pre code) {
  background: var(--bg-secondary);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
  font-size: 0.87em;
  border: 1px solid var(--border-color);
  font-family: 'JetBrains Mono', monospace;
}

/* ─── TOC ─── */
.gen-toc {
  position: sticky;
  top: 72px;
  height: calc(100vh - 88px);
  overflow-y: auto;
  padding: 1.5rem 1rem 1.5rem 0;
}

.gen-toc-header {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-tertiary);
  margin-bottom: 0.75rem;
  padding-left: 0.75rem;
}

.gen-toc-nav {
  display: flex;
  flex-direction: column;
}

.toc-link {
  display: block;
  padding: 0.35rem 0.75rem;
  font-size: 0.78rem;
  color: var(--text-tertiary);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: all 0.2s;
  line-height: 1.4;
}

.toc-link:hover {
  color: var(--text-primary);
}

.toc-link--sub {
  padding-left: 1.5rem;
  font-size: 0.73rem;
}

.toc-link--active {
  color: var(--primary) !important;
  border-left-color: var(--primary);
  font-weight: 500;
}

/* ─── Pagination ─── */
.gen-pagination {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0;
  margin-top: 3rem;
  border-top: 1px solid var(--border-color);
}

.gen-page-btn {
  padding: 0.75rem 1.25rem;
  background: var(--surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.2s;
}

.gen-page-btn:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.gen-page-next {
  background: var(--primary);
  border-color: var(--primary);
  color: white;
}

.gen-page-next:hover {
  background: var(--primary-hover);
  color: white;
}

/* ─── Responsive ─── */
@media (max-width: 1200px) {
  .gen-layout {
    grid-template-columns: 160px 1fr;
  }
  .gen-toc { display: none; }
}

@media (max-width: 768px) {
  .gen-layout {
    grid-template-columns: 1fr;
  }
  .gen-sidebar {
    display: none;
  }
  .gen-main {
    padding: 1.5rem 1rem 3rem;
  }
  .gen-nav-center { display: none; }
  .gen-pagination {
    flex-direction: column;
  }
}

/* ─── Scrollbar ─── */
.gen-sidebar::-webkit-scrollbar,
.gen-toc::-webkit-scrollbar {
  width: 4px;
}

.gen-sidebar::-webkit-scrollbar-thumb,
.gen-toc::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 2px;
}

/* ─── Print ─── */
@media print {
  .gen-nav, .gen-sidebar, .gen-toc, .gen-pagination, #reading-progress-bar, .copy-btn { display: none !important; }
  .gen-layout { grid-template-columns: 1fr !important; }
  .gen-main { padding: 0 !important; max-width: 100% !important; }
}

/* ─── Animation Embed ─── */
.gen-animation-embed {
  margin: 0 0 2rem;
  border-radius: 12px;
  overflow: hidden;
  border: 1px solid var(--border-color);
  background: #1e293b;
}

.gen-animation-embed iframe {
  width: 100%;
  height: 450px;
  border: none;
  display: block;
}

@media (max-width: 768px) {
  .gen-animation-embed iframe {
    height: 350px;
  }
}