/* ============================================
   Snet.Docs — Documentation Portal Styles
   Dark Theme — Three-Column Layout
   ============================================ */

/* --- Variables (override/extend design-system) --- */
:root {
  --docs-header-height: 56px;
  --docs-sidebar-width: 280px;
  --docs-toc-width: 220px;
  --ease-spring: cubic-bezier(0.32,0.72,0,1);
}

/* ============================================
   Doc Header
   ============================================ */
.doc-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--docs-header-height);
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border-light);
  z-index: 100;
  display: flex;
  align-items: center;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}

.doc-header-inner {
  position: relative;
  width: 100%;
  max-width: 100%;
  padding: 0 var(--space-6);
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.doc-header-inner .search-container {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  max-width: 420px;
  width: 100%;
}

@media (max-width: 768px) {
  .doc-header-inner .search-container {
    position: relative;
    left: auto;
    transform: none;
    max-width: none;
  }
}

.doc-header .logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: 700;
  color: var(--color-text-primary);
  text-decoration: none;
  flex-shrink: 0;
}

.doc-header .logo .logo-text-plain {
  margin-left: calc(var(--space-1) - var(--space-2));
}

.doc-header .logo svg {
  width: 24px;
  height: 24px;
}

.doc-header .logo .logo-text {
  color: var(--color-text-primary);
  font-weight: 700;
}

.doc-header .header-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.doc-header .powered-by {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

.doc-header .powered-by:hover {
  color: var(--color-accent-light);
}

.doc-header .theme-toggle {
  padding: var(--space-1) var(--space-2);
  background: rgba(17,22,39,0.10);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 14px;
  line-height: 1;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  flex-shrink: 0;
  color: var(--color-text-secondary);
}

.doc-header .theme-toggle:hover {
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.10);
  color: var(--color-text-primary);
  transform: scale(1.05);
}

.doc-header .header-lang {
  padding: var(--space-1) var(--space-3);
  background: rgba(17,22,39,0.10);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border: 1px solid rgba(255,255,255,0.08);
  color: var(--color-text-secondary);
  font-size: var(--text-xs);
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 30px;
  line-height: 1;
}

.doc-header .header-lang:hover {
  color: var(--color-accent-light);
  border-color: rgba(255,255,255,0.18);
  background: rgba(255,255,255,0.10);
  transform: scale(1.05);
}

/* ============================================
   Doc Layout — Three Columns
   ============================================ */
.doc-layout {
  display: flex;
  min-height: 100vh;
  padding-top: var(--docs-header-height);
}

.doc-sidebar {
  position: fixed;
  top: var(--docs-header-height);
  left: 0;
  width: var(--docs-sidebar-width);
  height: calc(100dvh - var(--docs-header-height));
  overflow-y: auto;
  padding: var(--space-6);
  z-index: 50;
}

.doc-sidebar::before {
  content: '';
  position: fixed;
  top: var(--docs-header-height);
  left: 0;
  width: var(--docs-sidebar-width);
  height: calc(100dvh - var(--docs-header-height));
  background: rgba(6,9,15,0.30);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  z-index: -1;
}

.doc-sidebar::after {
  content: '';
  position: fixed;
  top: var(--docs-header-height);
  left: var(--docs-sidebar-width);
  width: 1px;
  height: calc(100dvh - var(--docs-header-height));
  background: var(--color-border);
  z-index: 0;
  pointer-events: none;
}

.doc-content {
  flex: 1;
  margin-left: var(--docs-sidebar-width);
  margin-right: var(--docs-toc-width);
  min-width: 0;
  min-height: calc(100vh - var(--docs-header-height));
  padding: var(--space-10) var(--space-10);
  max-width: var(--content-narrow);
}

.doc-toc {
  position: fixed;
  top: var(--docs-header-height);
  right: 0;
  width: var(--docs-toc-width);
  height: calc(100dvh - var(--docs-header-height));
  overflow-y: auto;
  padding: var(--space-6) var(--space-6);
  z-index: 50;
}

.doc-toc::before {
  content: '';
  position: fixed;
  top: var(--docs-header-height);
  right: 0;
  width: var(--docs-toc-width);
  height: calc(100dvh - var(--docs-header-height));
  background: rgba(6,9,15,0.20);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  z-index: -1;
}

.doc-toc::after {
  content: '';
  position: fixed;
  top: var(--docs-header-height);
  right: 0;
  width: 1px;
  height: calc(100dvh - var(--docs-header-height));
  background: var(--color-border);
  z-index: 0;
  pointer-events: none;
}

/* ============================================
   Sidebar Navigation
   ============================================ */
.sidebar-section {
  margin-bottom: var(--space-4);
}

.sidebar-section-title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-secondary);
  padding: var(--space-2) var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  font-family: inherit;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  user-select: none;
}

.sidebar-section-title:hover {
  color: var(--color-text-primary);
  background: var(--color-surface);
}

.sidebar-section-icon {
  font-size: var(--text-sm);
  flex-shrink: 0;
  line-height: 1;
  width: 18px;
  text-align: center;
}

.sidebar-section-title.is-static {
  cursor: default;
}

.sidebar-section-title.is-static:hover {
  color: var(--color-text-muted);
  background: none;
}

.sidebar-section-label {
  flex: 1;
  text-align: left;
}

.sidebar-section-arrow {
  transition: transform var(--transition-fast);
  flex-shrink: 0;
  opacity: 0.35;
  margin-left: auto;
}

.sidebar-section-arrow.open {
  transform: rotate(180deg);
}

.sidebar-nav {
  list-style: none;
  padding: 0;
  margin: 0;
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}

.sidebar-nav.expanded {
  max-height: 4000px;
}

.sidebar-nav li {
  margin: 0;
}

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3) var(--space-1) var(--space-8);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: all var(--transition-fast);
  border-left: 2px solid transparent;
}

.sidebar-nav a:hover {
  color: var(--color-text-primary);
  background: var(--color-surface);
}

.sidebar-nav a.active {
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
  border-left-color: var(--color-accent);
  font-weight: 600;
  transition: all 0.25s var(--ease-spring);
}

/* ============================================
   Mobile Sidebar Toggle
   ============================================ */
.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 49;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease;
}

.sidebar-overlay.show {
  opacity: 1;
  pointer-events: auto;
}

.mobile-sidebar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: var(--space-2);
  flex-shrink: 0;
}

.mobile-sidebar-toggle:hover {
  color: var(--color-text-primary);
}

@media (max-width: 1024px) {
  .doc-toc {
    display: none;
  }

  .doc-content {
    margin-right: 0;
  }
}

@media (max-width: 768px) {
  .mobile-sidebar-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    margin-left: auto;
  }

  /* Hide desktop search + toggles on mobile (moved into sidebar) */
  .search-desktop,
  .header-desktop {
    display: none !important;
  }

  .doc-sidebar {
    transform: translateX(-100%);
    top: 0;
    left: 0;
    width: 100%;
    height: 100dvh;
    padding-top: calc(var(--docs-header-height) + var(--space-4));
    padding-bottom: var(--space-4);
  }

  .doc-sidebar::before {
    height: 100dvh;
  }

  .doc-sidebar::after {
    display: none;
  }

  .doc-sidebar.show {
    transform: translateX(0);
  }

  .doc-content {
    margin-left: 0;
    margin-right: 0;
    padding: var(--space-6) var(--space-4);
    max-width: 100%;
    overflow-x: hidden;
    word-wrap: break-word;
  }

  .doc-content pre,
  .doc-content table {
    max-width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .doc-content pre code {
    white-space: pre-wrap;
    word-break: break-word;
  }

  .doc-header .powered-by {
    display: none;
  }
}

/* Sidebar mobile tools (search + theme + language) */
.sidebar-mobile-tools {
  display: none;
}

@media (max-width: 768px) {
  .sidebar-mobile-tools {
    display: block;
    padding: var(--space-4) 0;
    margin-top: auto;
  }

  .sidebar-mobile-divider {
    height: 1px;
    background: var(--color-border-light);
    margin-bottom: var(--space-4);
  }

  .sidebar-mobile-search {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    margin-bottom: var(--space-3);
    background: rgba(17,22,39,0.08);
    backdrop-filter: blur(12px) saturate(120%);
    -webkit-backdrop-filter: blur(12px) saturate(120%);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-full);
    color: var(--color-text-muted);
    transition: all var(--transition-fast);
  }

  .sidebar-mobile-search:focus-within {
    border-color: rgba(255,255,255,0.16);
    box-shadow: 0 0 0 3px var(--color-accent-glow);
  }

  .sidebar-mobile-search input {
    flex: 1;
    border: none;
    background: none;
    color: var(--color-text-primary);
    font-size: var(--text-sm);
    font-family: inherit;
    outline: none;
    min-width: 0;
  }

  .sidebar-mobile-search input::placeholder {
    color: var(--color-text-muted);
  }

  .sidebar-mobile-actions {
    display: flex;
    gap: var(--space-2);
  }

  .sidebar-mobile-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-3);
    background: rgba(17,22,39,0.08);
    backdrop-filter: blur(12px) saturate(120%);
    -webkit-backdrop-filter: blur(12px) saturate(120%);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-full);
    color: var(--color-text-secondary);
    font-size: var(--text-sm);
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s var(--ease-spring, ease);
    white-space: nowrap;
  }

  .sidebar-mobile-btn:hover {
    border-color: rgba(255,255,255,0.16);
    background: rgba(255,255,255,0.08);
    color: var(--color-text-primary);
  }

  .sidebar-mobile-btn:active {
    transform: scale(0.97);
    transition: transform 0.1s ease;
  }

  .sidebar-mobile-btn-icon {
    font-size: 16px;
    line-height: 1;
  }

  .sidebar-mobile-search-results {
    margin-bottom: var(--space-3);
    background: rgba(15,18,30,0.85);
    backdrop-filter: blur(16px) saturate(140%);
    -webkit-backdrop-filter: blur(16px) saturate(140%);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: 0 4px 16px rgba(0,0,0,0.25);
  }

  .sidebar-mobile-search-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: var(--space-3) var(--space-4);
    cursor: pointer;
    transition: background var(--transition-fast);
  }

  .sidebar-mobile-search-item:not(:last-child) {
    border-bottom: 1px solid rgba(255,255,255,0.05);
  }

  .sidebar-mobile-search-item:hover,
  .sidebar-mobile-search-item:active {
    background: rgba(255,255,255,0.06);
  }

  .sidebar-mobile-search-title {
    font-size: var(--text-sm);
    color: var(--color-text-primary);
    font-weight: 500;
  }

  .sidebar-mobile-search-section {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
  }
}

/* ============================================
   Content Styling
   ============================================ */
.doc-content h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
}

.doc-content h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-light);
}

.doc-content h3 {
  font-size: var(--text-2xl);
  font-weight: 650;
  line-height: 1.35;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.doc-content h4 {
  font-size: var(--text-xl);
  font-weight: 600;
  line-height: 1.4;
  margin-top: var(--space-6);
  margin-bottom: var(--space-2);
}

.doc-content p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 72ch;
}

.doc-content ul,
.doc-content ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.doc-content ul {
  list-style: disc;
}

.doc-content ol {
  list-style: decimal;
}

.doc-content li {
  margin-bottom: var(--space-1);
}

.doc-content li::marker {
  color: var(--color-text-muted);
}

.doc-content a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.doc-content a:hover {
  color: var(--color-accent-hover);
}

.doc-content strong {
  color: var(--color-text-primary);
}

.doc-content hr {
  border: none;
  border-top: 1px solid var(--color-border-light);
  margin: var(--space-10) 0;
}

/* --- Tables (base styling) --- */
.doc-content table,
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-sm);
}

.doc-content thead,
.markdown-body thead {
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-accent);
}

.doc-content th,
.markdown-body th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.doc-content td,
.markdown-body td {
  padding: var(--space-3) var(--space-4);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border-light);
}

.doc-content tbody tr:hover {
  background: var(--color-surface);
}

.doc-content tbody code {
  font-size: 0.85em;
}

/* --- Code Blocks --- */
.doc-content pre {
  margin-bottom: var(--space-6);
  max-height: 500px;
  overflow-y: auto;
}

.doc-content pre code {
  white-space: pre;
  word-wrap: normal;
}

/* --- Definition Lists --- */
.doc-content dl {
  margin-bottom: var(--space-6);
}

.doc-content dt {
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.doc-content dd {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
  padding-left: var(--space-4);
}

/* ============================================
   Syntax Highlighting
   ============================================ */
.hljs-keyword { color: #c792ea; }
.hljs-string { color: #c3e88d; }
.hljs-number { color: #f78c6c; }
.hljs-comment { color: #546e7a; font-style: italic; }
.hljs-type { color: #82aaff; }
.hljs-function { color: #82aaff; }
.hljs-method { color: #82aaff; }
.hljs-class { color: #ffcb6b; }
.hljs-attr { color: #ffcb6b; }
.hljs-param { color: #f78c6c; }
.hljs-operator { color: #89ddff; }
.hljs-punctuation { color: #89ddff; }
.hljs-builtin { color: #c792ea; }
.hljs-namespace { color: #b2ccd6; }
.hljs-variable { color: #eeffff; }
.hljs-property { color: #82aaff; }
.hljs-literal { color: #f78c6c; }

/* --- Inline code color spans --- */
.code-kw { color: #c792ea; }
.code-str { color: #c3e88d; }
.code-num { color: #f78c6c; }
.code-cmt { color: #546e7a; font-style: italic; }
.code-type { color: #82aaff; }
.code-fn { color: #82aaff; }
.code-method { color: #82aaff; }
.code-prop { color: #eeffff; }

/* ============================================
   Breadcrumbs
   ============================================ */
.breadcrumbs {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
  padding: var(--space-2) var(--space-4);
  background: var(--color-surface);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border-light);
  max-width: 100%;
}

.breadcrumbs a {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.breadcrumbs a:hover {
  color: var(--color-accent-light);
  text-decoration: underline;
}

.breadcrumbs .separator {
  color: var(--color-text-muted);
  opacity: 0.5;
}

.breadcrumbs .current {
  color: var(--color-text-secondary);
}

/* ============================================
   Search (inline dropdown)
   ============================================ */
.search-container {
  position: relative;
}

.search-input {
  width: 100%;
  padding: var(--space-2) var(--space-4);
  padding-left: 2.5rem;
  background: rgba(17,22,39,0.08);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border: 1px solid rgba(255,255,255,0.07);
  border-radius: var(--radius-full);
  color: var(--color-text-primary);
  font-size: var(--text-sm);
  font-family: inherit;
  transition: all 0.25s var(--ease-spring, ease);
  outline: none;
  box-shadow: 0 1px 2px rgba(0,0,0,0.06);
}

.search-input::placeholder {
  color: var(--color-text-muted);
  opacity: 0.7;
}

.search-input:hover {
  border-color: rgba(255,255,255,0.12);
  background: rgba(255,255,255,0.04);
}

.search-icon {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-muted);
  width: 16px;
  height: 16px;
  pointer-events: none;
  z-index: 2;
}

/* Search dropdown (inline, below input) */
.search-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  right: 0;
  background: rgba(15,18,30,0.92);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  box-shadow: 0 8px 32px rgba(0,0,0,0.35), 0 0 0 1px rgba(255,255,255,0.04) inset;
  max-height: 380px;
  overflow-y: auto;
  z-index: 300;
  animation: fadeInScale 0.15s var(--transition-normal) forwards;
}

.search-dropdown-item {
  display: block;
  padding: var(--space-3) var(--space-4);
  cursor: pointer;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: all var(--transition-fast);
}

.search-dropdown-item:last-child {
  border-bottom: none;
}

.search-dropdown-item:hover,
.search-dropdown-item.selected {
  background: rgba(255,255,255,0.06);
}

.search-dropdown-title {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-primary);
}

.search-dropdown-section {
  font-size: var(--text-xs);
  color: var(--color-accent-light);
  margin-top: 2px;
}

.search-no-results {
  padding: var(--space-8);
  text-align: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

/* ============================================
   TOC (Right Sidebar)
   ============================================ */
.toc-title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.toc-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.toc-list li {
  margin-bottom: var(--space-1);
}

.toc-list a {
  display: block;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: all var(--transition-fast);
  line-height: 1.4;
}

.toc-list a:hover {
  color: var(--color-text-secondary);
}

.toc-list a.active {
  color: var(--color-accent-light);
  border-left-color: var(--color-accent);
}

.toc-list .toc-h3 {
  padding-left: var(--space-4);
}

/* ============================================
   Landing Page Cards
   ============================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-10);
}

.card {
  background: var(--color-surface);
  border: none;
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  padding: var(--space-6);
  text-decoration: none;
  transition: all var(--transition-normal);
  display: block;
}

.card:hover {
  border-left-color: var(--color-accent);
  background: var(--color-surface-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
  color: var(--color-text-primary);
}

.card .card-icon {
  font-size: 2rem;
  margin-bottom: var(--space-3);
  display: block;
}

.card h3 {
  font-size: var(--text-lg);
  margin: 0 0 var(--space-2);
  color: var(--color-text-primary);
}

.card p {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  margin: 0;
}

/* ============================================
   Protocol Grid
   ============================================ */
.protocol-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: var(--space-3);
  margin-bottom: var(--space-10);
}

.protocol-card {
  display: block;
  padding: var(--space-4);
  background: var(--color-surface);
  border: none;
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  text-decoration: none;
  transition: all var(--transition-fast);
}

.protocol-card:hover {
  border-left-color: var(--color-accent);
  background: var(--color-surface-hover);
}

.protocol-card .p-name {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-text-primary);
}

.protocol-card .p-count {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* ============================================
   Feature List / Key-Value
   ============================================ */
.feature-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-8);
}

.feature-item {
  padding: var(--space-4);
  background: var(--color-surface);
  border: none;
  border-left: 3px solid transparent;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  transition: all var(--transition-fast);
}
.feature-item:hover {
  border-left-color: var(--color-accent);
  background: var(--color-surface-hover);
}

.feature-item h4 {
  font-size: var(--text-sm);
  margin-bottom: var(--space-2);
}

.feature-item p {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin: 0;
}

/* ============================================
   Misc
   ============================================ */
.back-to-top {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
  z-index: 40;
  text-decoration: none;
}

.back-to-top:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  background: var(--color-surface-hover);
}

/* ============================================
   Markdown Content Styling
   ============================================ */
.markdown-body {
  max-width: 820px;
  line-height: 1.8;
}

.markdown-body h1 {
  font-weight: 800;
  margin-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border-light);
  padding-bottom: var(--space-4);
}

.markdown-body h2 {
  font-weight: 700;
  margin-top: var(--space-12);
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--color-border-light);
}

.markdown-body h3 {
  font-weight: 600;
  margin-top: var(--space-8);
  margin-bottom: var(--space-3);
}

.markdown-body p {
  margin-bottom: var(--space-4);
  color: var(--color-text-secondary);
  line-height: 1.75;
  max-width: 72ch;
}

.markdown-body ul, .markdown-body ol {
  margin-bottom: var(--space-4);
  padding-left: var(--space-6);
  color: var(--color-text-secondary);
  line-height: 1.75;
}

.markdown-body li {
  margin-bottom: var(--space-2);
  line-height: 1.7;
}

.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-code-bg);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-code-border);
  color: var(--color-accent-light);
}

.markdown-body pre {
  background: rgba(17,22,39,0.10);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  overflow-x: auto;
  margin-bottom: var(--space-6);
}

.markdown-body pre code {
  background: none;
  padding: 0;
  border: none;
  font-size: var(--text-sm);
  line-height: 1.7;
  color: var(--color-text-secondary);
}

.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: var(--space-6) 0;
  font-size: var(--text-sm);
}

.markdown-body th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  background: var(--color-surface);
  border-bottom: 2px solid var(--color-border);
  color: var(--color-text-primary);
  font-weight: 600;
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.markdown-body td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
}

.markdown-body a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.markdown-body a:hover {
  color: var(--color-accent-hover);
}

.markdown-body strong {
  color: var(--color-text-primary);
  font-weight: 700;
}

.markdown-body hr {
  border: none;
  border-top: 1px solid var(--color-border-light);
  margin: var(--space-10) 0;
}

.markdown-body blockquote {
  border-left: 4px solid var(--color-accent);
  padding: var(--space-3) var(--space-5);
  margin: var(--space-6) 0;
  background: var(--color-accent-glow);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  color: var(--color-text-secondary);
}

.markdown-body blockquote p {
  margin-bottom: var(--space-2);
}

.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius-md);
}

.markdown-body h2[id] {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

.markdown-body h3[id] {
  scroll-margin-top: calc(var(--header-height) + 20px);
}

/* ============================================
   Living Glow — Continuous flow, property-driven.
   ============================================ */

@property --ga1x { syntax: '<percentage>'; inherits: false; initial-value: 50%; }
@property --ga1y { syntax: '<percentage>'; inherits: false; initial-value: 18%; }
@property --ga1o { syntax: '<number>'; inherits: false; initial-value: 0.14; }
@property --ga2x { syntax: '<percentage>'; inherits: false; initial-value: 20%; }
@property --ga2y { syntax: '<percentage>'; inherits: false; initial-value: 60%; }
@property --ga2o { syntax: '<number>'; inherits: false; initial-value: 0.10; }
@property --ga3x { syntax: '<percentage>'; inherits: false; initial-value: 75%; }
@property --ga3y { syntax: '<percentage>'; inherits: false; initial-value: 30%; }
@property --ga3o { syntax: '<number>'; inherits: false; initial-value: 0.08; }
@property --ga4x { syntax: '<percentage>'; inherits: false; initial-value: 50%; }
@property --ga4y { syntax: '<percentage>'; inherits: false; initial-value: 80%; }
@property --ga4o { syntax: '<number>'; inherits: false; initial-value: 0.07; }
@property --ga5x { syntax: '<percentage>'; inherits: false; initial-value: 85%; }
@property --ga5y { syntax: '<percentage>'; inherits: false; initial-value: 70%; }
@property --ga5o { syntax: '<number>'; inherits: false; initial-value: 0.06; }
@property --ga6x { syntax: '<percentage>'; inherits: false; initial-value: 10%; }
@property --ga6y { syntax: '<percentage>'; inherits: false; initial-value: 15%; }
@property --ga6o { syntax: '<number>'; inherits: false; initial-value: 0.05; }
@property --gb1x { syntax: '<percentage>'; inherits: false; initial-value: 25%; }
@property --gb1y { syntax: '<percentage>'; inherits: false; initial-value: 35%; }
@property --gb1o { syntax: '<number>'; inherits: false; initial-value: 0.08; }
@property --gb2x { syntax: '<percentage>'; inherits: false; initial-value: 70%; }
@property --gb2y { syntax: '<percentage>'; inherits: false; initial-value: 55%; }
@property --gb2o { syntax: '<number>'; inherits: false; initial-value: 0.07; }
@property --gb3x { syntax: '<percentage>'; inherits: false; initial-value: 50%; }
@property --gb3y { syntax: '<percentage>'; inherits: false; initial-value: 60%; }
@property --gb3o { syntax: '<number>'; inherits: false; initial-value: 0.06; }

body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background: var(--color-bg-primary, #06090f);
  transition: background 0.6s ease;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 60% 55% at var(--ga1x) var(--ga1y), rgba(79,141,230,var(--ga1o)) 0%, transparent 55%),
    radial-gradient(ellipse 55% 50% at var(--ga2x) var(--ga2y), rgba(100,160,240,var(--ga2o)) 0%, transparent 45%),
    radial-gradient(ellipse 50% 50% at var(--ga3x) var(--ga3y), rgba(59,130,216,var(--ga3o)) 0%, transparent 50%),
    radial-gradient(ellipse 50% 45% at var(--ga4x) var(--ga4y), rgba(79,141,230,var(--ga4o)) 0%, transparent 45%),
    radial-gradient(ellipse 45% 50% at var(--ga5x) var(--ga5y), rgba(87,155,240,var(--ga5o)) 0%, transparent 48%),
    radial-gradient(ellipse 45% 45% at var(--ga6x) var(--ga6y), rgba(67,125,210,var(--ga6o)) 0%, transparent 48%);
  animation:
    orbX1 21s ease-in-out infinite, orbY1 23s ease-in-out infinite, orbO1 19s ease-in-out infinite,
    orbX2 25s ease-in-out infinite, orbY2 20s ease-in-out infinite, orbO2 17s ease-in-out infinite,
    orbX3 29s ease-in-out infinite, orbY3 22s ease-in-out infinite, orbO3 17s ease-in-out infinite,
    orbX4 23s ease-in-out infinite, orbY4 28s ease-in-out infinite, orbO4 21s ease-in-out infinite,
    orbX5 27s ease-in-out infinite, orbY5 19s ease-in-out infinite, orbO5 24s ease-in-out infinite,
    orbX6 26s ease-in-out infinite, orbY6 20s ease-in-out infinite, orbO6 18s ease-in-out infinite;
  transition: background 0.6s ease;
}

/* ---- Keyframes (shared with OW) ---- */
@keyframes orbX1 { 0%,100%{--ga1x:50%}20%{--ga1x:75%}40%{--ga1x:85%}60%{--ga1x:25%}80%{--ga1x:12%} }
@keyframes orbY1 { 0%,100%{--ga1y:18%}25%{--ga1y:45%}50%{--ga1y:82%}75%{--ga1y:22%} }
@keyframes orbO1 { 0%,100%{--ga1o:0.14}33%{--ga1o:0.18}66%{--ga1o:0.05} }
@keyframes orbX2 { 0%,100%{--ga2x:20%}30%{--ga2x:68%}60%{--ga2x:82%}85%{--ga2x:10%} }
@keyframes orbY2 { 0%,100%{--ga2y:60%}35%{--ga2y:22%}70%{--ga2y:82%} }
@keyframes orbO2 { 0%,100%{--ga2o:0.10}50%{--ga2o:0.15} }
@keyframes orbX3 { 0%,100%{--ga3x:75%}25%{--ga3x:48%}50%{--ga3x:14%}75%{--ga3x:88%} }
@keyframes orbY3 { 0%,100%{--ga3y:30%}33%{--ga3y:72%}66%{--ga3y:14%} }
@keyframes orbO3 { 0%,100%{--ga3o:0.08}50%{--ga3o:0.13} }
@keyframes orbX4 { 0%,100%{--ga4x:50%}40%{--ga4x:88%}80%{--ga4x:18%} }
@keyframes orbY4 { 0%,100%{--ga4y:80%}50%{--ga4y:14%} }
@keyframes orbO4 { 0%,100%{--ga4o:0.07}33%{--ga4o:0.12}66%{--ga4o:0.03} }
@keyframes orbX5 { 0%,100%{--ga5x:85%}50%{--ga5x:14%} }
@keyframes orbY5 { 0%,100%{--ga5y:70%}25%{--ga5y:8%}50%{--ga5y:88%}75%{--ga5y:38%} }
@keyframes orbO5 { 0%,100%{--ga5o:0.06}50%{--ga5o:0.12} }
@keyframes orbX6 { 0%,100%{--ga6x:10%}33%{--ga6x:62%}66%{--ga6x:92%} }
@keyframes orbY6 { 0%,100%{--ga6y:15%}50%{--ga6y:74%} }
@keyframes orbO6 { 0%,100%{--ga6o:0.05}50%{--ga6o:0.11} }

/* Layer B — 3 counter-flow orbs via .doc-layout::before */
.doc-layout::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse 55% 50% at var(--gb1x) var(--gb1y), rgba(100,160,240,var(--gb1o)) 0%, transparent 50%),
    radial-gradient(ellipse 45% 50% at var(--gb2x) var(--gb2y), rgba(67,125,210,var(--gb2o)) 0%, transparent 48%),
    radial-gradient(ellipse 50% 45% at var(--gb3x) var(--gb3y), rgba(87,155,240,var(--gb3o)) 0%, transparent 48%);
  animation:
    orbBx1 28s ease-in-out infinite, orbBy1 24s ease-in-out infinite, orbBo1 22s ease-in-out infinite,
    orbBx2 26s ease-in-out infinite, orbBy2 22s ease-in-out infinite, orbBo2 20s ease-in-out infinite,
    orbBx3 19s ease-in-out infinite, orbBy3 25s ease-in-out infinite, orbBo3 21s ease-in-out infinite;
}

@keyframes orbBx1 { 0%,100%{--gb1x:25%}50%{--gb1x:78%} }
@keyframes orbBy1 { 0%,100%{--gb1y:35%}33%{--gb1y:78%}66%{--gb1y:10%} }
@keyframes orbBo1 { 0%,100%{--gb1o:0.08}50%{--gb1o:0.14} }
@keyframes orbBx2 { 0%,100%{--gb2x:70%}33%{--gb2x:18%}66%{--gb2x:88%} }
@keyframes orbBy2 { 0%,100%{--gb2y:55%}50%{--gb2y:22%} }
@keyframes orbBo2 { 0%,100%{--gb2o:0.07}50%{--gb2o:0.12} }
@keyframes orbBx3 { 0%,100%{--gb3x:50%}50%{--gb3x:10%} }
@keyframes orbBy3 { 0%,100%{--gb3y:60%}25%{--gb3y:18%}50%{--gb3y:86%}75%{--gb3y:34%} }
@keyframes orbBo3 { 0%,100%{--gb3o:0.06}50%{--gb3o:0.11} }

/* Light mode — Layer B paler hues */
[data-theme="light"] .doc-layout::before {
  background:
    radial-gradient(ellipse 55% 50% at var(--gb1x) var(--gb1y), rgba(147,197,253,var(--gb1o)) 0%, transparent 50%),
    radial-gradient(ellipse 45% 50% at var(--gb2x) var(--gb2y), rgba(191,219,254,var(--gb2o)) 0%, transparent 48%),
    radial-gradient(ellipse 50% 45% at var(--gb3x) var(--gb3y), rgba(147,197,253,var(--gb3o)) 0%, transparent 48%);
}

/* ============================================
   High-End Visual Polish
   ============================================ */

/* Premium heading hierarchy */
.markdown-body h1 {
  font-size: var(--text-4xl);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
}
.markdown-body h2 {
  font-size: var(--text-3xl);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.markdown-body h3 {
  font-size: var(--text-2xl);
  font-weight: 600;
}

/* Code blocks — glass inner glow */
.doc-content pre,
.markdown-body pre {
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.06);
  position: relative;
}

[data-theme="light"] .doc-content pre,
[data-theme="light"] .markdown-body pre {
  background: rgba(255,255,255,0.10);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border-color: rgba(0,0,0,0.06);
  box-shadow: inset 0 1px 1px rgba(255,255,255,0.4);
}

/* Table enhancements */
.doc-content table,
.markdown-body table {
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.doc-content thead,
.markdown-body thead {
  position: relative;
}
.doc-content thead::after,
.markdown-body thead::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-accent), transparent);
  opacity: 0.4;
}
.doc-content tbody tr,
.markdown-body tbody tr {
  transition: background 0.3s var(--ease-spring);
}
.doc-content tbody tr:nth-child(even),
.markdown-body tbody tr:nth-child(even) {
  background: rgba(255,255,255,0.02);
}
.doc-content tbody tr:hover,
.markdown-body tbody tr:hover {
  background: var(--color-accent-glow);
}
.doc-content td:first-child,
.markdown-body td:first-child {
  font-weight: 500;
  color: var(--color-text-primary);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
}

/* Light mode table zebra */
[data-theme="light"] .doc-content tbody tr:nth-child(even),
[data-theme="light"] .markdown-body tbody tr:nth-child(even) {
  background: rgba(0,0,0,0.02);
}

/* Blockquote — editorial style */
.markdown-body blockquote {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}
.markdown-body blockquote::before {
  content: '\201C';
  position: absolute;
  top: -12px;
  left: var(--space-3);
  font-size: 2rem;
  color: var(--color-accent);
  font-family: Georgia, serif;
  line-height: 1;
  opacity: 0.4;
}
[data-theme="light"] .markdown-body blockquote {
  box-shadow: 0 2px 12px rgba(0,0,0,0.06);
}

/* Code inline — subtle accent */
.markdown-body code {
  color: var(--color-accent-light);
  font-weight: 500;
}

/* Sidebar — premium hover states */
.sidebar-section-title {
  transition: all 0.3s var(--ease-spring);
}
.sidebar-section-title:hover {
  transform: translateX(2px);
}
.sidebar-nav a {
  transition: all 0.3s var(--ease-spring);
}
.sidebar-nav a:hover {
  transform: translateX(3px);
}

/* Breadcrumb polish */
.breadcrumbs a {
  transition: all 0.2s var(--ease-spring);
}
.breadcrumbs a:hover {
  transform: translateY(-1px);
}

.search-input:focus {
  border-color: var(--color-accent);
  border-radius: var(--radius-full);
  box-shadow: 0 0 0 3px var(--color-accent-glow), 0 4px 20px var(--color-accent-glow);
  outline: none;
}

/* Doc landing cards — premium hover */
.card {
  transition: all 0.5s var(--ease-spring);
}
.card:hover {
  transform: translateY(-4px);
}

/* Definition list polish */
.doc-content dt {
  color: var(--color-accent-light);
  font-size: var(--text-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Horizontal rule gradient */
.markdown-body hr {
  background: linear-gradient(90deg, transparent, var(--color-border), transparent);
  height: 1px;
  border: none;
}

/* Scrollbar premium */
.doc-sidebar::-webkit-scrollbar-thumb {
  border-radius: var(--radius-full);
  background: var(--color-border);
  transition: background 0.3s;
}
.doc-sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--color-accent);
}
.doc-toc::-webkit-scrollbar-thumb {
  border-radius: var(--radius-full);
  background: var(--color-border);
}

/* Mobile sidebar */
@media (max-width: 768px) {
  .doc-sidebar::before {
    top: 0;
    width: 100%;
    background: rgba(6,9,15,0.40);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
  [data-theme="light"] .doc-sidebar::before {
    background: rgba(255,255,255,0.40) !important;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

/* ============================================
   Light Mode — CSS Variable Overrides
   ============================================ */
[data-theme="light"] {
  --color-bg-primary: #fafbff;
  --color-bg-secondary: #ffffff;
  --color-surface: #ffffff;
  --color-surface-hover: #f3f5fc;
  --color-border: #e2e6f0;
  --color-border-light: rgba(0,0,0,0.06);
  --color-text-primary: #14183a;
  --color-text-secondary: #4a4e6c;
  --color-text-muted: #717594;
  --color-accent: #2563eb;
  --color-accent-hover: #3b82f6;
  --color-accent-light: #1d4ed8;
  --color-accent-glow: rgba(37,99,235,0.07);
  --color-accent-glow-strong: rgba(37,99,235,0.14);
  --color-gradient-start: #2563eb;
  --color-gradient-mid: #3b82f6;
  --color-gradient-end: #1d4ed8;
  --color-code-bg: #f4f5fc;
  --color-code-border: #e2e6f0;
  --shadow-glow: 0 0 35px rgba(37,99,235,0.08);
  --shadow-glow-strong: 0 0 55px rgba(37,99,235,0.16);
}

/* Light mode — doc header & sidebar */
[data-theme="light"] .doc-header {
  background: rgba(255,255,255,0.92);
  border-bottom-color: rgba(0,0,0,0.06);
}

[data-theme="light"] .doc-sidebar::before {
  background: rgba(255,255,255,0.40);
}

[data-theme="light"] .doc-toc::before {
  background: rgba(255,255,255,0.30);
}

/* Light mode — glow same system, paler hues */
[data-theme="light"] body::before {
  background: #fafbff;
  transition: background 0.6s ease;
}

[data-theme="light"] body::after {
  background:
    radial-gradient(ellipse 60% 55% at var(--ga1x) var(--ga1y), rgba(147,197,253,var(--ga1o)) 0%, transparent 55%),
    radial-gradient(ellipse 55% 50% at var(--ga2x) var(--ga2y), rgba(191,219,254,var(--ga2o)) 0%, transparent 45%),
    radial-gradient(ellipse 50% 50% at var(--ga3x) var(--ga3y), rgba(147,197,253,var(--ga3o)) 0%, transparent 50%),
    radial-gradient(ellipse 50% 45% at var(--ga4x) var(--ga4y), rgba(191,219,254,var(--ga4o)) 0%, transparent 45%),
    radial-gradient(ellipse 45% 50% at var(--ga5x) var(--ga5y), rgba(147,197,253,var(--ga5o)) 0%, transparent 48%),
    radial-gradient(ellipse 45% 45% at var(--ga6x) var(--ga6y), rgba(191,219,254,var(--ga6o)) 0%, transparent 48%);
  transition: background 0.6s ease;
}

/* Light mode — cards */
[data-theme="light"] .card,
[data-theme="light"] .protocol-card,
[data-theme="light"] .feature-item {
  border-color: var(--color-border);
}

[data-theme="light"] .card:hover,
[data-theme="light"] .protocol-card:hover,
[data-theme="light"] .feature-item:hover {
  border-left-color: var(--color-accent);
  box-shadow: 0 4px 20px rgba(37,99,235,0.08);
}

/* Light mode — sidebar */
[data-theme="light"] .breadcrumbs {
  background: #ffffff;
  border-color: var(--color-border);
}

[data-theme="light"] .sidebar-section-title:hover {
  background: var(--color-surface-hover);
}

[data-theme="light"] .sidebar-nav a:hover {
  background: var(--color-surface-hover);
}

/* Light mode — scrollbar */
[data-theme="light"] .doc-sidebar::-webkit-scrollbar-track,
[data-theme="light"] .doc-toc::-webkit-scrollbar-track {
  background: #e8e8ee;
}

/* Light mode — search */
[data-theme="light"] .search-input {
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-color: rgba(0,0,0,0.07);
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}

[data-theme="light"] .search-input:hover {
  border-color: rgba(0,0,0,0.12);
  background: rgba(255,255,255,0.28);
}

[data-theme="light"] .search-dropdown {
  background: rgba(255,255,255,0.88);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  border-color: rgba(0,0,0,0.07);
  box-shadow: 0 8px 32px rgba(0,0,0,0.08), 0 0 0 1px rgba(0,0,0,0.03) inset;
}

[data-theme="light"] .search-dropdown-item {
  border-bottom-color: rgba(0,0,0,0.05);
}

[data-theme="light"] .search-dropdown-item:hover,
[data-theme="light"] .search-dropdown-item.selected {
  background: rgba(0,0,0,0.04);
}

/* Light mode — desktop header buttons */
[data-theme="light"] .doc-header .theme-toggle,
[data-theme="light"] .doc-header .header-lang {
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border-color: rgba(0,0,0,0.07);
  color: var(--color-text-secondary);
}

[data-theme="light"] .doc-header .theme-toggle:hover,
[data-theme="light"] .doc-header .header-lang:hover {
  border-color: rgba(0,0,0,0.12);
  background: rgba(255,255,255,0.30);
}

/* Light mode — mobile sidebar search */
[data-theme="light"] .sidebar-mobile-search {
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border-color: rgba(0,0,0,0.07);
}

[data-theme="light"] .sidebar-mobile-search:focus-within {
  border-color: rgba(0,0,0,0.12);
}

/* Light mode — mobile sidebar buttons */
[data-theme="light"] .sidebar-mobile-btn {
  background: rgba(255,255,255,0.18);
  backdrop-filter: blur(12px) saturate(120%);
  -webkit-backdrop-filter: blur(12px) saturate(120%);
  border-color: rgba(0,0,0,0.07);
  color: var(--color-text-secondary);
}

[data-theme="light"] .sidebar-mobile-btn:hover {
  border-color: rgba(0,0,0,0.12);
  background: rgba(255,255,255,0.30);
  color: var(--color-text-primary);
}

/* Light mode — mobile search results */
[data-theme="light"] .sidebar-mobile-search-results {
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  border-color: rgba(0,0,0,0.07);
}