/* =================================================================
   Knowledge Base — Styles (v2)
   Single monochrome color scheme · iOS-like frosted glass
   ================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

html, body {
  overflow-x: hidden !important;
}

/* ── CSS Variables ────────────────────────────────────────────────── */
:root {
  --kb-bg: #0A0A0F;
  --kb-surface: rgba(255, 255, 255, 0.045);
  --kb-surface-hover: rgba(255, 255, 255, 0.08);
  --kb-surface-active: rgba(255, 255, 255, 0.10);
  --kb-glass: rgba(18, 18, 24, 0.82);
  --kb-glass-border: rgba(255, 255, 255, 0.08);
  --kb-border: rgba(255, 255, 255, 0.06);
  --kb-border-hover: rgba(255, 255, 255, 0.12);
  --kb-text: #E4E4E7;
  --kb-text-muted: #71717A;
  --kb-text-dim: rgba(255, 255, 255, 0.25);
  --kb-accent: #FF0077;
  --kb-accent-soft: rgba(255, 0, 119, 0.12);
  --kb-accent-glow: rgba(255, 0, 119, 0.06);
  --kb-radius: 1.4rem;
  --kb-radius-sm: 0.9rem;
}

/* ── Section Container ────────────────────────────────────────────── */
#knowledge-base {
  position: relative;
  background: var(--kb-bg);
  padding: 8rem 0 4rem;
  min-height: 100vh;
}

@media only screen and (min-width: 1025px) {
  #knowledge-base {
    height: 100vh;
    min-height: 0;
    padding: 3rem 0;
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  #knowledge-base.kb-zen-mode {
    padding: 2rem 0;
  }
}

/* Dot grid background */
#knowledge-base::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 32px 32px;
  pointer-events: none;
}

/* Top glow */
#knowledge-base::after {
  content: '';
  position: absolute;
  top: -300px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 600px;
  background: radial-gradient(ellipse, var(--kb-accent-glow) 0%, transparent 65%);
  pointer-events: none;
}

/* ── Section Header ───────────────────────────────────────────────── */
.kb-header {
  position: relative;
  z-index: 2;
  text-align: center;
  margin-bottom: 4rem;
  padding: 0 2rem;
}

@media only screen and (min-width: 1025px) {
  .kb-header {
    margin-bottom: 2rem;
  }
  .kb-header h2 {
    font-size: 3.6rem;
    margin-bottom: 0.6rem;
  }
  .kb-header p {
    font-size: 1.4rem;
  }
}

.kb-header h2 {
  font-family: 'Inter', 'poppins-semibold', sans-serif;
  font-size: 4rem;
  font-weight: 700;
  color: #FFFFFF;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
  line-height: 1.15;
}

.kb-header p {
  font-family: 'Inter', serif;
  font-size: 1.5rem;
  line-height: 1.7;
  color: var(--kb-text-muted);
  max-width: 520px;
  margin: 0 auto;
}

/* ── Inline Search Tab ────────────────────────────────────────────── */
.kb-search-tab {
  position: relative;
  display: flex;
  align-items: center;
  background: var(--kb-surface);
  border: 1px solid var(--kb-border);
  border-radius: 100px;
  padding: 0;
  height: 4.2rem;
  width: 4.2rem;
  min-width: 4.2rem;
  max-width: 4.2rem;
  justify-content: center;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  cursor: pointer;
  overflow: hidden;
  box-sizing: border-box;
  margin: 0; /* override main.css global button margin alignment */
}

.kb-search-tab .kb-search-icon {
  font-size: 1.8rem; /* Matches the category icons exactly */
  color: var(--kb-text-muted);
  pointer-events: auto; /* Enable clicking the icon to clear search */
  cursor: pointer;
  transition: all 0.25s ease;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}

.kb-search-tab .kb-search-icon:hover {
  transform: scale(1.15);
}

.kb-search-tab input {
  width: 0; /* Animate width from 0 to prevent pushing the icon when collapsed */
  min-width: 0;
  opacity: 0;
  pointer-events: none;
  border: none !important;
  background: transparent !important;
  color: var(--kb-text) !important;
  font-family: 'Inter', sans-serif;
  font-size: 1.2rem;
  outline: none;
  padding: 0.2rem 0;
  height: auto;
  line-height: 1.5;
  box-shadow: none !important;
  -webkit-appearance: none;
  transition: width 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.25s ease, margin-left 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  margin: 0;
}

.kb-search-tab input::placeholder {
  color: var(--kb-text-dim);
}

.kb-search-tab .kb-search-count {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--kb-text-muted);
  margin-left: 0.6rem;
  opacity: 0;
  transition: opacity 0.3s;
  white-space: nowrap;
  pointer-events: none;
  display: none;
}

.kb-search-tab .kb-search-count.visible {
  opacity: 1;
}

/* Expanded state on focus or when search is active */
.kb-search-tab:focus-within,
.kb-cat-tabs.search-active .kb-search-tab {
  width: 260px;
  min-width: 260px;
  max-width: 260px;
  padding: 0 1.6rem;
  justify-content: flex-start;
}

.kb-search-tab:focus-within .kb-search-icon,
.kb-cat-tabs.search-active .kb-search-tab .kb-search-icon {
  color: var(--kb-accent);
}

.kb-search-tab:focus-within input,
.kb-cat-tabs.search-active .kb-search-tab input {
  width: 150px;
  min-width: 150px;
  opacity: 1;
  pointer-events: auto;
  margin-left: 0.8rem;
}

.kb-search-tab:focus-within .kb-search-count,
.kb-cat-tabs.search-active .kb-search-tab .kb-search-count {
  display: inline-block;
}

/* Dim category tabs when search is active or focused */
.kb-cat-tabs.search-active .kb-cat-tab,
.kb-cat-tabs:has(.kb-search-tab:focus-within) .kb-cat-tab {
  opacity: 0.6;
}

.kb-cat-tabs.search-active .kb-cat-tab:hover,
.kb-cat-tabs:has(.kb-search-tab:focus-within) .kb-cat-tab:hover {
  opacity: 1;
}

.kb-cat-tabs.search-active .kb-cat-tab.active,
.kb-cat-tabs:has(.kb-search-tab:focus-within) .kb-cat-tab.active {
  background: var(--kb-surface) !important;
  border-color: var(--kb-border) !important;
  color: var(--kb-text-muted) !important;
  box-shadow: none !important;
}

/* ── Categories Grid ──────────────────────────────────────────────── */
/* ── Dashboard Layout ────────────────────────────────────────────── */
.kb-layout-container {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 1350px;
  margin: 0 auto;
  padding: 0 3rem;
  height: auto;
  min-height: 680px;
  display: flex;
  gap: 2.5rem;
  align-items: stretch;
}

@media only screen and (min-width: 1025px) {
  .kb-layout-container {
    flex: 1;
    min-height: 0;
    height: auto;
    margin-bottom: 2rem;
    max-width: 1600px;
    width: 100%;
  }

  #knowledge-base.kb-zen-mode .kb-layout-container {
    max-width: 1850px;
  }
}

.kb-nav-sidebar {
  width: 30%;
  min-width: 280px;
  max-width: 380px;
  height: 100%;
  display: flex;
  flex-direction: column;
}

@media only screen and (min-width: 1025px) {
  .kb-nav-sidebar {
    flex: 0 0 360px;
    width: 360px;
    min-width: 360px;
    max-width: 360px;
  }
}

/* Category Tabs Horizontal Row */
.kb-cat-tabs {
  display: flex;
  justify-content: safe center;
  align-items: center;
  flex-wrap: nowrap; /* Prevent wrapping entirely */
  overflow-x: auto; /* Enable horizontal scrolling if content overflows */
  scrollbar-width: none; /* Hide scrollbar on Firefox */
  -ms-overflow-style: none; /* Hide scrollbar on IE/Edge */
  gap: 1.2rem;
  max-width: 100%;
  width: 100%;
  margin: 0 auto 2.5rem; /* Reduced by 1rem to compensate for added padding */
  padding: 1rem 3rem; /* Added vertical padding to prevent hover clipping */
  z-index: 2;
  position: relative;
  box-sizing: border-box;
}

.kb-cat-tabs::-webkit-scrollbar {
  display: none; /* Hide scrollbar on Chrome, Safari, Opera */
}

@media only screen and (min-width: 1025px) {
  .kb-cat-tabs {
    margin-bottom: 2rem;
  }
}

.kb-cat-tab {
  display: flex;
  align-items: center;
  flex-shrink: 0; /* Prevent squishing on smaller viewports */
  gap: 1.1rem;
  padding: 1rem 1.8rem;
  background: var(--kb-surface);
  border: 1px solid var(--kb-border);
  border-radius: 100px; /* pill shape for horizontal buttons */
  color: var(--kb-text-muted);
  cursor: pointer;
  height: 4.2rem; /* Fixed height matching search tab */
  box-sizing: border-box;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  text-align: left;
  line-height: 1.25;
  font-family: 'Inter', sans-serif;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  margin: 0; /* override main.css global button margin alignment */
  text-transform: none; /* override main.css button uppercase */
  letter-spacing: normal; /* override main.css button letter-spacing */
}

/* Removed compact circular icon bubble behavior to prevent wobbling */

/* Modern subtle pop on hover */
.kb-cat-tab:hover {
  background: var(--kb-surface-hover);
  color: var(--kb-text);
  border-color: var(--kb-border-hover);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.kb-cat-tab.active {
  background: var(--kb-accent-soft);
  border-color: rgba(255, 0, 119, 0.25);
  color: #FFFFFF;
}

.kb-cat-tab-icon {
  font-size: 1.8rem;
  flex-shrink: 0;
  line-height: 1;
}

.kb-cat-tab.active .kb-cat-tab-icon {
  color: var(--kb-accent);
}

.kb-cat-tab-meta {
  display: flex;
  flex-direction: column;
  justify-content: center; /* Center lines vertically on mobile/desktop */
  min-width: 0;
  transition: opacity 0.25s ease, width 0.25s ease;
  opacity: 1;
}

.kb-cat-tab-label {
  font-size: 1.15rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kb-cat-tab-count {
  font-size: 0.95rem;
  opacity: 0.55;
  margin-top: 0.15rem;
}

.kb-cat-tab.active .kb-cat-tab-count {
  opacity: 0.9;
  color: #FFFFFF;
}

/* Topics list container */
.kb-topics-list-container {
  flex: 1;
  background: var(--kb-surface);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius);
  padding: 2.2rem 1.6rem;
  overflow-y: auto;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.06) transparent;
}

.kb-topics-list-container::-webkit-scrollbar {
  width: 4px;
}

.kb-topics-list-container::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
}

/* Topic Group structure inside sidebar */
.kb-sidebar-group {
  margin-bottom: 2.2rem;
  animation: kb-fade-in-slide 0.3s ease-out;
}

.kb-sidebar-group:last-child {
  margin-bottom: 0;
}

@keyframes kb-fade-in-slide {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.kb-group-label {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0 0.8rem 0.6rem;
  margin-bottom: 0.4rem;
}

.kb-group-label-icon {
  font-size: 1.3rem;
  line-height: 1;
}

.kb-group-label-text {
  font-family: 'Inter', sans-serif;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--kb-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.kb-group-label-line {
  flex: 1;
  height: 1px;
  background: var(--kb-border);
}

/* Topic buttons */
.kb-topic-item {
  margin-bottom: 0.2rem;
}

.kb-topic-btn {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  width: 100%;
  padding: 0.75rem 1rem;
  background: none;
  border: 1px solid transparent;
  border-radius: var(--kb-radius-sm);
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
  font-family: 'Inter', sans-serif;
  height: auto; /* override main.css global button height */
  line-height: 1.4; /* override main.css global button line-height */
  margin: 0; /* override main.css global button margin */
  text-transform: none; /* override main.css button uppercase */
  letter-spacing: normal; /* override main.css button letter-spacing */
}

.kb-topic-btn:hover {
  background: var(--kb-surface-hover);
  border-color: var(--kb-border);
}

.kb-topic-btn .topic-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--kb-text-muted);
  flex-shrink: 0;
  transition: all 0.25s ease;
  opacity: 0.5;
}

.kb-topic-btn:hover .topic-dot {
  background: var(--kb-accent);
  opacity: 1;
  box-shadow: 0 0 6px rgba(255, 0, 119, 0.35);
}

.kb-topic-label {
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--kb-text-muted);
  transition: color 0.2s;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kb-topic-btn:hover .kb-topic-label {
  color: var(--kb-text);
}

.kb-topic-btn.active {
  background: var(--kb-accent-soft);
  border-color: rgba(255, 0, 119, 0.2);
}

.kb-topic-btn.active .topic-dot {
  background: var(--kb-accent);
  opacity: 1;
  box-shadow: 0 0 8px rgba(255, 0, 119, 0.4);
}

.kb-topic-btn.active .kb-topic-label {
  color: #FFFFFF;
  font-weight: 500;
}

/* ── Content Panel (Desktop Inline Panel) ────────────────────────── */
.kb-content-panel {
  flex: 1;
  min-width: 0;
  background: var(--kb-surface);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
  transition: background 0.3s, border-color 0.3s, box-shadow 0.3s;
}

.kb-content-placeholder {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem;
  color: var(--kb-text-muted);
}

.kb-content-placeholder .placeholder-icon {
  font-size: 4.5rem;
  margin-bottom: 1.5rem;
  opacity: 0.25;
  animation: float-placeholder 4s ease-in-out infinite;
}

@keyframes float-placeholder {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.kb-content-placeholder .placeholder-title {
  font-family: 'Inter', sans-serif;
  font-size: 1.8rem;
  font-weight: 600;
  color: #FFFFFF;
  margin-bottom: 0.8rem;
}

.kb-content-placeholder .placeholder-text {
  font-family: 'Inter', sans-serif;
  font-size: 1.3rem;
  max-width: 320px;
  line-height: 1.5;
}

.kb-content-inner {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  height: 100%;
}

.kb-panel-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 1.4rem 2.2rem;
  border-bottom: 1px solid var(--kb-border);
  background: rgba(255, 255, 255, 0.015);
  flex-shrink: 0;
  position: relative;
}

.kb-reading-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 0%;
  height: 2px;
  background: var(--kb-accent);
  box-shadow: 0 0 8px var(--kb-accent);
  transition: width 0.1s ease-out;
  z-index: 10;
}

.kb-panel-breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.35rem;
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  min-width: 0;
}

.kb-panel-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  flex-shrink: 0;
}

.kb-panel-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--kb-border);
  color: var(--kb-text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  transition: all 0.2s ease;
  line-height: 1;
  padding: 0;
  font-family: 'Inter', sans-serif;
  margin: 0;
  text-transform: none;
  letter-spacing: normal;
}

.kb-panel-btn:hover {
  background: rgba(255, 255, 255, 0.08);
  color: var(--kb-text);
  border-color: var(--kb-border-hover);
}

.kb-panel-btn.active {
  background: var(--kb-accent-soft);
  border-color: rgba(255, 0, 119, 0.25);
  color: var(--kb-accent);
}

.kb-mobile-only {
  display: none;
}

.kb-panel-body {
  position: relative;
  flex: 1;
  overflow-y: auto;
  padding: 2.8rem 3.5rem 4rem;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.06) transparent;
}

.kb-panel-body::-webkit-scrollbar {
  width: 5px;
}

.kb-panel-body::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 5px;
}

/* Mobile Drawer Backdrop */
.kb-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.kb-drawer-backdrop.open {
  opacity: 1;
  visibility: visible;
}

/* ── Expanded Layout (Removed) ── */

/* Loading spinner */
.kb-loading {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 300px;
}

.kb-spinner {
  width: 32px;
  height: 32px;
  border: 2.5px solid rgba(255,255,255,0.06);
  border-top-color: var(--kb-accent);
  border-radius: 50%;
  animation: kb-spin 0.7s linear infinite;
}

@keyframes kb-spin {
  to { transform: rotate(360deg); }
}

/* ── Markdown Content ─────────────────────────────────────────────── */
.kb-markdown {
  font-family: 'Inter', serif;
  font-size: 1.4rem;
  line-height: 1.8;
  color: var(--kb-text);
  animation: kb-fade-up 0.35s ease-out;
}

@keyframes kb-fade-up {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

.kb-markdown h1 {
  font-family: 'Inter', sans-serif;
  font-size: 2.6rem;
  font-weight: 700;
  color: #FFFFFF;
  margin: 0 0 1.2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--kb-border);
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.kb-markdown h2 {
  font-family: 'Inter', sans-serif;
  font-size: 1.95rem;
  font-weight: 600;
  color: #FFFFFF;
  margin: 2.8rem 0 1rem;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.kb-markdown h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: #FFFFFF;
  margin: 2.2rem 0 0.8rem;
  line-height: 1.4;
}

.kb-markdown h4 {
  font-family: 'Inter', sans-serif;
  font-size: 1.4rem;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
  margin: 1.8rem 0 0.6rem;
}

/* Heading Anchor Links */
.kb-heading {
  position: relative;
}

.kb-heading-anchor {
  display: inline-flex;
  align-items: center;
  margin-left: 0.6rem;
  vertical-align: middle;
  opacity: 0;
  color: rgba(255, 255, 255, 0.4);
  text-decoration: none;
  font-weight: normal;
  font-size: 0.85em;
  padding: 0.2rem;
  transition: opacity 0.2s ease, transform 0.2s ease, color 0.2s ease;
}

.kb-heading:hover .kb-heading-anchor {
  opacity: 0.7;
}

.kb-heading-anchor:hover {
  opacity: 1 !important;
  color: #fff;
  transform: scale(1.1);
}

.kb-heading-anchor.copied {
  opacity: 1 !important;
  color: var(--kb-accent) !important;
  transform: scale(1.1);
}

.kb-markdown p {
  margin: 0 0 1.4rem;
  color: var(--kb-text);
}

.kb-markdown a {
  color: var(--kb-accent);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.kb-markdown a:hover {
  border-bottom-color: var(--kb-accent);
}

.kb-markdown strong {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: #FFFFFF;
  font-size: inherit;
  line-height: inherit;
}

.kb-markdown em {
  font-family: 'Inter', sans-serif;
  font-style: italic;
  font-size: inherit;
  line-height: inherit;
}

.kb-markdown ul, .kb-markdown ol {
  margin: 0 0 1.4rem 1.8rem;
  padding: 0;
}

.kb-markdown li {
  margin-bottom: 0.45rem;
  padding-left: 0.2rem;
  color: var(--kb-text);
}

.kb-markdown li::marker {
  color: var(--kb-accent);
}

.kb-markdown blockquote {
  margin: 1.4rem 0;
  padding: 1rem 1.6rem;
  border-left: 3px solid var(--kb-accent);
  background: rgba(255, 0, 119, 0.04);
  border-radius: 0 var(--kb-radius-sm) var(--kb-radius-sm) 0;
}

.kb-markdown blockquote::before {
  display: none;
}

.kb-markdown blockquote p {
  font-family: 'Inter', sans-serif;
  font-style: normal;
  font-size: 1.3rem;
  color: var(--kb-text-muted);
  margin-bottom: 0;
}

.kb-markdown hr {
  border: none;
  border-top: 1px solid var(--kb-border);
  margin: 2.2rem 0;
}

.kb-markdown img {
  max-width: 100%;
  border-radius: var(--kb-radius-sm);
  margin: 1.4rem 0;
}

/* Tables */
.kb-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.4rem 0;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.06) transparent;
}

.kb-table-wrap::-webkit-scrollbar {
  height: 4px;
}

.kb-table-wrap::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
}

.kb-table-wrap .kb-markdown table {
  margin: 0; /* Remove margin since wrapper handles it */
}

.kb-markdown table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.4rem 0;
  font-size: 1.25rem;
}

.kb-markdown table th {
  background: rgba(255,255,255,0.05);
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: #FFFFFF;
  padding: 0.85rem 1.2rem;
  text-align: left;
  border-bottom: 1px solid var(--kb-border);
}

.kb-markdown table td {
  padding: 0.75rem 1.2rem;
  border-bottom: 1px solid rgba(255,255,255,0.03);
  color: var(--kb-text);
}

.kb-markdown table tr:hover td {
  background: rgba(255,255,255,0.02);
}

/* ── Code Blocks ──────────────────────────────────────────────────── */
.kb-markdown code {
  font-family: 'JetBrains Mono', Consolas, monospace;
  font-size: 1.15rem;
  padding: 0.2rem 0.5rem;
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 4px;
  color: #F0A6CA;
  white-space: nowrap;
}

.kb-markdown pre {
  position: relative;
  margin: 1.4rem 0;
  padding: 0;
  background: rgba(0, 0, 0, 0.45);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--kb-radius-sm);
  overflow: hidden;
}

.kb-markdown pre code {
  display: block;
  padding: 1.6rem 2rem;
  background: none !important;
  border: none;
  border-radius: 0;
  color: var(--kb-text);
  white-space: pre;
  overflow-x: auto;
  font-size: 1.15rem;
  line-height: 1.65;
  scrollbar-width: thin;
  scrollbar-color: rgba(255,255,255,0.08) transparent;
}

.kb-markdown pre code::-webkit-scrollbar {
  height: 4px;
}
.kb-markdown pre code::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
}

/* Code header */
.kb-code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.5rem 1.2rem;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid rgba(255,255,255,0.04);
}

.kb-code-lang {
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--kb-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.kb-copy-btn {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.7rem;
  background: none;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 4px;
  color: var(--kb-text-muted);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  cursor: pointer;
  transition: all 0.2s;
  height: auto;
  line-height: 1.4;
  margin: 0;
  text-transform: none;
  letter-spacing: normal;
}

.kb-copy-btn:hover {
  background: rgba(255,255,255,0.05);
  color: var(--kb-text);
  border-color: rgba(255,255,255,0.15);
}

.kb-copy-btn.copied {
  color: #00D4AA;
  border-color: rgba(0, 212, 170, 0.25);
}

/* Mermaid Diagrams */
.mermaid {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius-sm);
  padding: 1.5rem;
  margin: 1.4rem 0;
  display: flex;
  justify-content: center;
  overflow-x: auto;
  box-sizing: border-box;
}

.mermaid svg {
  max-width: 100% !important;
  height: auto !important;
}

/* ── Content Footer & Next/Prev Navigation ────────────────────────── */
.kb-content-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--kb-border);
  flex-wrap: wrap;
  gap: 1.5rem;
}

.kb-markdown a.kb-source-link,
.kb-nav-btn {
  display: inline-flex;
  align-items: center;
  padding: 0.7rem 1.2rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--kb-border);
  border-radius: var(--kb-radius-sm);
  font-family: 'Inter', sans-serif !important;
  font-size: 1.1rem;
  color: #fff;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  height: auto !important;
  text-transform: none !important;
  letter-spacing: normal !important;
  line-height: 1.4 !important;
  margin: 0 !important;
}

.kb-markdown a.kb-source-link:hover,
.kb-nav-btn:hover {
  background: rgba(255,255,255,0.08);
  color: #fff;
  border-color: var(--kb-border-hover);
}

.kb-nav-buttons {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* ── Scroll Indicator (Hero) ──────────────────────────────────────── */
.scroll-indicator {
  position: absolute;
  bottom: 3.5rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.3rem;
  cursor: pointer;
}

.scroll-chevron {
  width: 24px;
  height: 24px;
  opacity: 0.7;
  animation: bounce-scroll 2.2s ease-in-out infinite;
}

.scroll-chevron:nth-child(2) {
  margin-top: -12px;
  animation-delay: 0.2s;
  opacity: 0.4;
}

.scroll-chevron svg {
  width: 100%;
  height: 100%;
  stroke: var(--kb-accent) !important;
}

@keyframes bounce-scroll {
  0%, 100% {
    transform: translateY(0);
    opacity: 0.5;
    filter: drop-shadow(0 0 3px rgba(255, 0, 119, 0.45));
  }
  50% {
    transform: translateY(6px);
    opacity: 1.0;
    filter: drop-shadow(0 0 8px rgba(255, 0, 119, 0.95)) drop-shadow(0 0 15px rgba(255, 0, 119, 0.55));
  }
}

/* ── Entrance Animations ──────────────────────────────────────────── */
.kb-animate-in {
  opacity: 0;
  transform: translate3d(0, 18px, 0);
  -webkit-transform: translate3d(0, 18px, 0);
  transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  -webkit-transition: opacity 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94), -webkit-transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform, opacity;
}

.kb-animate-in.visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  -webkit-transform: translate3d(0, 0, 0);
}

.kb-category {
  opacity: 0;
  transform: translate3d(0, 14px, 0);
  -webkit-transform: translate3d(0, 14px, 0);
  transition: opacity 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  -webkit-transition: opacity 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94), -webkit-transform 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform, opacity;
}

.kb-category.visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  -webkit-transform: translate3d(0, 0, 0);
}

/* ── Search State ─────────────────────────────────────────────────── */
.kb-sidebar-group.search-hidden,
.kb-topic-item.search-hidden {
  display: none;
}

.kb-search-cat-header {
  font-family: 'Inter', sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--kb-accent);
  padding: 1.4rem 0.8rem 0.6rem;
  margin-top: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px dashed rgba(255, 255, 255, 0.08);
  animation: kb-fade-in-slide 0.3s ease-out;
}

.kb-search-cat-header:first-child {
  margin-top: 0;
}

.kb-search-item-info {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  min-width: 0;
}

.kb-topic-sublabel {
  font-size: 0.95rem;
  color: var(--kb-text-muted);
  opacity: 0.65;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kb-no-results {
  text-align: center;
  padding: 4rem 2rem;
}

.kb-no-results-icon {
  font-size: 3.5rem;
  margin-bottom: 1.2rem;
  opacity: 0.25;
}

.kb-no-results-text {
  font-family: 'Inter', sans-serif;
  font-size: 1.35rem;
  color: var(--kb-text-muted);
}

/* ── Zen Mode (Fullscreen Reader) ────────────────────────────────── */
#knowledge-base.kb-zen-mode .kb-header,
#knowledge-base.kb-zen-mode .kb-search-wrap,
#knowledge-base.kb-zen-mode .kb-cat-tabs {
  display: none !important;
}

body.kb-zen-active {
  overflow: hidden !important;
}

/* ── Responsive ───────────────────────────────────────────────────── */
@media only screen and (max-width: 1024px) {
  #knowledge-base {
    height: 100vh;
    box-sizing: border-box;
    display: flex;
    flex-direction: column;
    padding-bottom: 2rem !important;
  }

  .kb-layout-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    padding: 0 2rem;
    z-index: 1001; /* Must be higher than backdrop's 999 to prevent it from covering the drawer */
    transform: none !important;
    -webkit-transform: none !important;
    will-change: auto !important;
  }

  .kb-nav-sidebar {
    width: 100%;
    max-width: 100%;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 0;
    gap: 1.8rem;
  }

  .kb-topics-list-container {
    flex: 1;
    max-height: none !important;
    height: auto !important;
  }

  .kb-mobile-only {
    display: flex;
  }

  #kb-panel-zen-btn {
    display: none !important;
  }

  /* Content panel becomes fixed slide-in drawer on mobile */
  .kb-content-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    height: 100vh !important;
    width: 75%;
    max-width: 580px;
    min-width: 320px;
    z-index: 1000;
    transform: translate3d(100%, 0, 0);
    -webkit-transform: translate3d(100%, 0, 0);
    border-radius: 0;
    border-left: 1px solid var(--kb-border);
    box-shadow: -20px 0 60px rgba(0, 0, 0, 0.4);
    background: var(--kb-bg); /* Use solid background instead of glass for legibility */
    backdrop-filter: none !important;
    -webkit-backdrop-filter: none !important;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1), -webkit-transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    will-change: transform;
  }

  .kb-content-panel.open {
    transform: translate3d(0, 0, 0);
    -webkit-transform: translate3d(0, 0, 0);
  }

  .kb-content-placeholder {
    display: none;
  }

  .kb-content-inner {
    display: flex;
  }

  .kb-panel-body {
    padding: 2.2rem 2.5rem;
  }
}

@media only screen and (max-width: 768px) {
  #knowledge-base {
    padding-top: 7rem;
  }

  .kb-header h2 {
    font-size: 3rem;
  }

  .kb-header p {
    font-size: 1.35rem;
  }

  .kb-layout-container {
    padding: 0 1.5rem;
  }

  .kb-content-panel {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 100%;
  }

  .kb-panel-body {
    padding: 2rem;
  }

  .kb-markdown h1 {
    font-size: 2rem;
  }

  .kb-markdown h2 {
    font-size: 1.65rem;
  }
}

@media only screen and (max-width: 600px) {
  #knowledge-base {
    padding-top: 5rem;
  }

  .kb-header h2 {
    font-size: 2.4rem;
  }

  .kb-layout-container {
    padding: 0 1rem;
  }

  .kb-cat-tabs {
    gap: 0.6rem;
    padding: 0.8rem 1.5rem; /* Give more space for scrolling categories */
  }

  .kb-cat-tab {
    padding: 0.6rem 1.2rem; /* Reduce vertical padding to fit text height */
  }

  .kb-cat-tab-icon {
    font-size: 1.6rem;
  }

  .kb-cat-tab-label {
    font-size: 1.1rem;
  }

  .kb-cat-tab-count {
    font-size: 0.85rem;
    margin-top: 0.1rem;
  }

  .kb-topics-list-container {
    padding: 1.5rem 1.2rem;
  }

  .kb-panel-body {
    padding: 1.5rem;
  }

  .kb-markdown pre code {
    padding: 1.2rem;
    font-size: 1.05rem;
  }

  .scroll-indicator {
    display: flex;
    bottom: 1.8rem;
  }
  .scroll-chevron {
    width: 20px;
    height: 20px;
  }
}

/* ── Utility ──────────────────────────────────────────────────────── */
.kb-hidden {
  display: none !important;
}

/* Prevent body scroll when drawer is open */
body.kb-drawer-open {
  overflow: hidden;
}