@import url("./tokens.css");

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* WCAG 2.1 AA Focus-Visible Accessibility Standard */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 2px;
}

/* Skip to Main Content Link (Accessible Keyboard Navigation) */
.skip-to-content {
  position: fixed;
  top: -100px;
  left: 1rem;
  z-index: 3000;
  background-color: var(--accent-cyan);
  color: #070a10;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 700;
  padding: 0.6rem 1.25rem;
  border-radius: var(--radius-sm);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  transition: top 0.15s ease-out;
}

.skip-to-content:focus {
  top: 1rem;
}

/* Reduced Motion Preference */
@media (prefers-reduced-motion: reduce) {
  *, ::before, ::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Layout Grid */
.portal-layout {
  display: grid;
  grid-template-columns: 280px minmax(0, 1fr);
  max-width: 1440px;
  margin: 0 auto;
  width: 100%;
  flex: 1;
}

@media (max-width: 900px) {
  .portal-layout {
    display: flex;
    flex-direction: column;
    width: 100%;
  }
}

/* Top Utility Header */
.portal-header {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
}

.portal-header-inner {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0.65rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.portal-header-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.portal-header-bottom {
  display: flex;
  justify-content: flex-end;
  align-items: center;
}

.portal-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--text-primary);
}

.portal-brand-badge {
  background-color: #1e293b;
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  letter-spacing: 0.05em;
}

.portal-brand-title {
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.portal-header-tools {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.tool-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-decoration: none;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  line-height: 1;
  height: 32px;
  box-sizing: border-box;
  padding: 0 0.75rem;
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  vertical-align: middle;
}

.tool-link:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--accent-cyan);
}

/* Mobile Header Layout (< 768px): 4-Row Clean Layout */
@media (max-width: 768px) {
  .portal-header-inner {
    padding: 0.6rem 1rem;
    gap: 0.5rem;
  }

  .portal-header-top {
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
  }

  .portal-brand {
    justify-content: center;
    text-align: center;
  }

  .portal-brand-title {
    font-size: 0.95rem;
    font-weight: 800;
  }

  .portal-header-tools {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
    width: 100%;
  }

  .portal-header-bottom {
    width: 100%;
  }

  .portal-search-btn {
    width: 100% !important;
    max-width: 100% !important;
  }

  .portal-search-btn .search-btn-kbd {
    display: none;
  }

  .tool-link {
    width: 100%;
    font-size: 0.75rem;
    height: 30px;
    padding: 0 0.2rem;
    text-align: center;
    justify-content: center;
  }

  .dropdown {
    width: 100%;
  }

  .dropdown-menu {
    left: 0;
    right: 0;
    width: 100%;
    min-width: unset;
  }
}

/* Mobile Framework Navigation Bar (Row 3, connects directly to content) */
.portal-mobile-nav-bar {
  display: none;
}

@media (max-width: 900px) {
  .portal-mobile-nav-bar {
    display: block;
    background-color: #0b1120;
    border-top: 1px solid var(--border-color);
    padding: 0.4rem 1rem;
  }

  .mobile-nav-trigger {
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-left: 3px solid var(--accent-cyan);
    color: var(--text-primary);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.55rem 0.85rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.15s ease;
  }

  .mobile-nav-trigger:hover,
  .mobile-nav-trigger:active {
    background-color: var(--bg-card-hover);
    border-color: var(--accent-cyan);
  }

  .mobile-nav-label {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--accent-cyan);
  }

  .mobile-nav-arrow {
    color: var(--text-muted);
    font-size: 0.85rem;
  }
}

/* Dropdown */
.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown-arrow {
  font-size: 0.65rem;
  margin-left: 0.2rem;
  color: var(--text-muted);
}

.dropdown-menu {
  display: none;
  position: absolute;
  right: 0;
  top: calc(100% + 2px);
  margin-top: 0;
  background-color: #0f172a;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.7);
  min-width: 260px;
  z-index: 200;
  padding: 0.4rem;
}

/* Invisible hover bridge so mouse cursor never loses hover focus when transitioning */
.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -8px;
  left: 0;
  right: 0;
  height: 8px;
}

.dropdown:hover .dropdown-menu,
.dropdown:focus-within .dropdown-menu {
  display: block;
}

.dropdown-item {
  display: flex;
  flex-direction: column;
  padding: 0.6rem 0.75rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: background-color 0.1s ease;
}

.dropdown-item:hover {
  background-color: #1e293b;
}

.dropdown-item.active {
  background-color: rgba(14, 165, 233, 0.12);
  border-left: 2px solid var(--accent-cyan);
}

.item-title {
  color: var(--accent-cyan);
  font-weight: 600;
  font-size: 0.85rem;
  margin-bottom: 0.15rem;
}

.item-desc {
  color: var(--text-muted);
  font-size: 0.75rem;
  line-height: 1.3;
}

.version-tag {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-emerald);
  background-color: #064e3b;
  border: 1px solid #059669;
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
}

/* Sidebar Navigation */
.portal-sidebar {
  background-color: var(--bg-sidebar);
  border-right: 1px solid var(--border-color);
  padding: 1.5rem 1rem;
  overflow-y: auto;
  max-height: calc(100vh - 55px);
  position: sticky;
  top: 55px;
}

.sidebar-header-mobile {
  display: none;
}

.mobile-menu-btn {
  display: none;
}

.portal-brand-wrap {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.portal-sidebar-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(2px);
  z-index: 999;
}

.portal-sidebar-backdrop.active {
  display: block;
}

@media (max-width: 900px) {
  .mobile-menu-btn {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background-color: #1e293b;
    border: 1px solid var(--border-color);
    color: var(--accent-cyan);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
  }

  .portal-sidebar {
    position: fixed;
    top: 0;
    left: -320px;
    width: 300px;
    height: 100vh;
    max-height: 100vh;
    z-index: 1000;
    background-color: #0f172a;
    border-right: 1px solid var(--border-color);
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.8);
    transition: transform 0.25s ease-in-out;
    padding: 1rem;
    overflow-y: auto;
  }

  .portal-sidebar.open {
    transform: translateX(320px);
  }

  .sidebar-header-mobile {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 0.75rem;
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
  }

  .sidebar-title {
    font-size: 0.88rem;
    font-weight: 800;
    color: #fff;
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }

  .sidebar-close-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    font-size: 1.25rem;
    line-height: 1;
    padding: 0.2rem 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
  }

  .portal-layout {
    display: block;
    width: 100%;
  }

  .portal-main {
    padding: 1.25rem 1rem;
    width: 100%;
  }
}

.nav-group {
  margin-bottom: 1.25rem;
  border-bottom: 1px solid rgba(31, 41, 55, 0.4);
  padding-bottom: 0.75rem;
}

.nav-group:last-child {
  border-bottom: none;
}

.nav-group-summary {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.35rem 0.5rem;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-radius: var(--radius-sm);
  transition: all 0.1s ease;
  user-select: none;
}

.nav-group-summary::-webkit-details-marker {
  display: none;
}

.nav-group-summary::after {
  content: "▾";
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

details[open] .nav-group-summary::after {
  transform: rotate(0deg);
}

details:not([open]) .nav-group-summary::after {
  transform: rotate(-90deg);
}

.nav-group-summary:hover {
  color: var(--text-primary);
  background-color: rgba(30, 41, 59, 0.3);
}

.nav-subgroup {
  margin-top: 0.75rem;
  margin-bottom: 0.75rem;
  padding-left: 0.5rem;
  border-left: 1px solid var(--border-subtle);
  margin-left: 0.5rem;
}

.nav-subgroup-title {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.2rem 0.5rem;
  margin-bottom: 0.25rem;
}

details.nav-subgroup summary.nav-subgroup-title {
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  user-select: none;
  border-radius: var(--radius-sm);
  transition: all 0.1s ease;
}

details.nav-subgroup summary.nav-subgroup-title::-webkit-details-marker {
  display: none;
}

details.nav-subgroup summary.nav-subgroup-title::after {
  content: "▾";
  font-size: 0.65rem;
  color: var(--text-muted);
  transition: transform 0.15s ease;
}

details.nav-subgroup[open] summary.nav-subgroup-title::after {
  transform: rotate(0deg);
}

details.nav-subgroup:not([open]) summary.nav-subgroup-title::after {
  transform: rotate(-90deg);
}

details.nav-subgroup summary.nav-subgroup-title:hover {
  color: #ffffff;
  background-color: rgba(14, 165, 233, 0.1);
}

.nav-list {
  list-style: none;
  margin-top: 0.35rem;
}

.nav-item a {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.83rem;
  padding: 0.3rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all 0.1s ease;
}

.nav-tree-item a {
  padding-left: 1rem;
  position: relative;
  font-size: 0.78rem;
}

.nav-tree-item a::before {
  content: "└";
  position: absolute;
  left: 0.25rem;
  color: var(--text-muted);
}


/* Main Article Content */
.portal-main {
  padding: 2.5rem 3rem;
  max-width: 900px;
  width: 100%;
}

@media (max-width: 900px) {
  .portal-main {
    padding: 1.5rem;
  }
}

/* Cohesive Architectural Header System */
.portal-article h1 {
  font-size: 1.85rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-top: 0.25rem;
  margin-bottom: 1.5rem;
  color: #ffffff;
  line-height: 1.3;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.85rem;
}

.portal-article h2 {
  font-size: 1.45rem;
  font-weight: 700;
  letter-spacing: -0.015em;
  margin-top: 3.25rem;
  margin-bottom: 1.15rem;
  color: #ffffff;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.65rem;
  background: transparent;
  border-left: none;
  padding-left: 0;
}

.portal-article h3 {
  font-size: 0.88rem;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--font-mono);
  background: transparent;
  border: none;
  padding: 0;
}

.portal-article p {
  margin-bottom: 1.2rem;
  color: #cbd5e1;
}

.portal-article a {
  color: var(--text-link);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 189, 248, 0.3);
  transition: all 0.15s ease;
}

.portal-article a:hover {
  color: var(--text-link-hover);
  border-bottom-color: var(--text-link-hover);
}

.portal-article ul,
.portal-article ol {
  margin-bottom: 1.5rem;
  padding-left: 0;
  list-style: none;
  color: #cbd5e1;
}

.portal-article ul li {
  position: relative;
  padding-left: 1.25rem;
  margin-bottom: 0.65rem;
  line-height: 1.55;
}

.portal-article ul li a {
  font-weight: 600;
  color: var(--text-link);
  text-decoration: none;
  border-bottom: 1px solid rgba(56, 189, 248, 0.4);
}

.portal-article ul li a:hover {
  color: var(--text-link-hover);
  border-bottom-color: var(--text-link-hover);
}

.portal-article ul li::before {
  content: "•";
  position: absolute;
  left: 0.25rem;
  color: var(--accent-cyan);
  font-weight: bold;
}

/* Nested Sub-List Indentation */
.portal-article ul.nested-list {
  margin-top: 0.4rem;
  margin-bottom: 0.6rem;
  padding-left: 1.5rem;
  border-left: 1px solid var(--border-subtle);
  margin-left: 0.5rem;
}

.portal-article ul.nested-list li {
  padding-left: 1rem;
  margin-bottom: 0.45rem;
  font-size: 0.92em;
}

.portal-article ul.nested-list li::before {
  content: "-";
  color: var(--text-muted);
}

.portal-article ol {
  list-style-type: decimal;
  padding-left: 1.5rem;
}

.portal-article ol li {
  margin-bottom: 0.5rem;
}

.portal-article em {
  font-style: italic;
  color: #e2e8f0;
}

.portal-article strong {
  font-weight: 700;
  color: #f8fafc;
}

.portal-article hr {
  border: none;
  border-top: 1px solid var(--border-color);
  margin: 2.5rem 0;
}

/* Blockquotes & Callout Ribbons */
.portal-article blockquote {
  border-left: 3px solid var(--accent-cyan);
  background-color: var(--bg-card);
  padding: 1rem 1.25rem;
  margin: 1.5rem 0;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: #e2e8f0;
}

.portal-article blockquote p:last-child {
  margin-bottom: 0;
}

/* Data Tables & Responsive Table Scroll Wrappers */
.table-scroll-wrapper {
  width: 100%;
  max-width: 100%;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.75rem 0;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  background-color: var(--bg-card);
}

.table-scroll-wrapper table,
.portal-article table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.875rem;
  background-color: var(--bg-card);
  border-radius: var(--radius-sm);
}

@media (max-width: 768px) {
  .table-scroll-wrapper table,
  .portal-article table {
    display: table;
    min-width: 520px;
  }
}

.portal-article th {
  background-color: #1e293b;
  color: #f8fafc;
  text-align: left;
  padding: 0.75rem 1rem;
  font-weight: 700;
  border-bottom: 1px solid var(--border-subtle);
  font-family: var(--font-sans);
  white-space: nowrap;
}

.portal-article td {
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-color);
  color: #cbd5e1;
  vertical-align: top;
}

.portal-article tr:nth-child(even) {
  background-color: rgba(30, 41, 59, 0.4);
}

.portal-article tr:last-child td {
  border-bottom: none;
}

/* Code & ASCII Diagrams */
.portal-article pre {
  background-color: var(--bg-code);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
  margin: 1.5rem 0;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.45;
  color: #e2e8f0;
}

.portal-article code {
  font-family: var(--font-mono);
  font-size: 0.85em;
  background-color: var(--bg-card);
  padding: 0.15rem 0.35rem;
  border-radius: 3px;
  border: 1px solid var(--border-color);
  color: var(--accent-cyan);
}

.portal-article pre code {
  background-color: transparent;
  padding: 0;
  border: none;
  color: inherit;
}

/* Interactive Hover Glossary Terms & Tooltips */
.glossary-term {
  border-bottom: 1px dotted var(--accent-cyan);
  cursor: help;
  color: #f8fafc;
  font-weight: 500;
  transition: color 0.15s ease;
  position: relative;
}

.glossary-term:hover {
  color: var(--accent-cyan);
  background-color: rgba(14, 165, 233, 0.1);
  border-radius: 2px;
}

.glossary-tooltip-card {
  position: absolute;
  z-index: 1000;
  background-color: #0f172a;
  border: 1px solid #38bdf8;
  box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.7), 0 8px 10px -6px rgba(0, 0, 0, 0.7);
  border-radius: var(--radius-md);
  padding: 1rem;
  width: 320px;
  font-size: 0.825rem;
  line-height: 1.5;
  color: #e2e8f0;
  pointer-events: auto;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
}

.glossary-tooltip-card.active {
  opacity: 1;
  transform: translateY(0);
}

.tooltip-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.5rem;
  border-bottom: 1px solid #334155;
  padding-bottom: 0.4rem;
}

.tooltip-title {
  font-weight: 700;
  color: #38bdf8;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.tooltip-category {
  font-size: 0.65rem;
  text-transform: uppercase;
  background-color: #1e293b;
  padding: 0.1rem 0.4rem;
  border-radius: 3px;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.tooltip-body {
  margin-bottom: 0.5rem;
  color: #cbd5e1;
}

.tooltip-citation {
  font-size: 0.75rem;
  color: var(--accent-emerald);
  border-top: 1px solid #1e293b;
  padding-top: 0.35rem;
  font-family: var(--font-mono);
}

/* Footer */
.portal-footer {
  background-color: var(--bg-surface);
  border-top: 1px solid var(--border-color);
  padding: 2rem 1.5rem;
  margin-top: auto;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.portal-footer a {
  color: var(--text-secondary);
  text-decoration: none;
}

.portal-footer a:hover {
  color: var(--text-link);
}


.nav-item a:hover {
  background-color: var(--bg-card);
  color: var(--text-primary);
}

.nav-item.active a {
  background-color: #1e293b;
  color: var(--accent-cyan);
  font-weight: 600;
  border-left: 2px solid var(--accent-cyan);
}


/* Diagram Interactive Hover & Expand Button */
.diagram-interactive {
  cursor: pointer;
  transition: border-color 0.15s ease;
}

.diagram-interactive:hover {
  border-color: var(--accent-cyan);
}

.diagram-expand-btn {
  position: absolute;
  top: 8px;
  right: 8px;
  background-color: #1e293b;
  color: var(--accent-cyan);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 0.25rem 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 600;
  cursor: pointer;
  opacity: 0.6;
  transition: all 0.15s ease;
}

.diagram-interactive:hover .diagram-expand-btn {
  opacity: 1;
  background-color: #0c4a6e;
  border-color: var(--accent-cyan);
  color: #fff;
}

/* Diagram Lightbox Modal */
.diagram-modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background-color: rgba(10, 14, 23, 0.94);
  backdrop-filter: blur(4px);
  padding: 2rem;
  align-items: center;
  justify-content: center;
}

.diagram-modal-overlay.active {
  display: flex;
}

.diagram-modal-container {
  background-color: var(--bg-surface);
  border: 1px solid #38bdf8;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.85);
  border-radius: var(--radius-lg);
  max-width: 1200px;
  width: 100%;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.diagram-modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.85rem 1.25rem;
  background-color: #111827;
  border-bottom: 1px solid var(--border-color);
}

.diagram-modal-title {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.diagram-modal-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  line-height: 1;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  transition: all 0.1s ease;
}

.diagram-modal-close:hover {
  color: #fff;
  background-color: #334155;
}

.diagram-modal-body {
  padding: 1.5rem;
  overflow: auto;
  background-color: #070a10;
}

.diagram-modal-body pre {
  margin: 0;
  padding: 0;
  background: transparent;
  border: none;
  font-size: 0.95rem;
  line-height: 1.45;
  color: #f8fafc;
}

/* Glossary Live Filter Box */
.glossary-search-container {
  margin: 1.5rem 0 2rem 0;
  display: flex;
  gap: 1rem;
  align-items: center;
  background-color: var(--bg-card);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.glossary-search-box {
  flex: 1;
  background-color: #0b1120;
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.15s ease;
}

.glossary-search-box:focus {
  border-color: var(--accent-cyan);
}

.glossary-count {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}


/* Global Client-Side Search Trigger & Modal Styles */
.portal-search-btn {
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 280px;
  max-width: 320px;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  padding: 0 0.75rem;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.15s ease;
}

.portal-search-btn:hover {
  background-color: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--accent-cyan);
}

.search-btn-icon {
  font-size: 0.85rem;
}

.search-btn-text {
  flex: 1;
  text-align: left;
  font-weight: 500;
  color: var(--text-secondary);
}

.search-btn-kbd {
  background-color: #1e293b;
  border: 1px solid var(--border-subtle);
  color: var(--accent-cyan);
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  line-height: 1;
}

@media (pointer: coarse) {
  .search-btn-kbd {
    display: none;
  }
}

/* Search Modal Backdrop & Dialog */
.portal-search-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2500;
  background-color: rgba(7, 10, 16, 0.88);
  backdrop-filter: blur(6px);
  padding: 10vh 1rem 2rem 1rem;
  align-items: flex-start;
  justify-content: center;
}

.portal-search-backdrop.active {
  display: flex !important;
}

.portal-search-dialog {
  background-color: #0d1322;
  border: 1px solid #38bdf8;
  box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.9), 0 0 0 1px rgba(56, 189, 248, 0.2);
  border-radius: var(--radius-lg);
  max-width: 720px;
  width: 100%;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  animation: searchFadeIn 0.15s ease-out;
}

@keyframes searchFadeIn {
  from { opacity: 0; transform: translateY(-8px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.portal-search-box {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.85rem 1.25rem;
  background-color: #0f172a;
  border-bottom: 1px solid var(--border-color);
}

.portal-search-box-icon {
  font-size: 1.1rem;
  color: var(--accent-cyan);
}

.portal-search-input {
  flex: 1;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1rem;
  font-family: var(--font-sans);
  outline: none;
}

.portal-search-input::placeholder {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.portal-search-close-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.1rem;
  cursor: pointer;
  padding: 0.2rem 0.4rem;
  border-radius: var(--radius-sm);
}

.portal-search-close-btn:hover {
  color: #fff;
  background-color: #1e293b;
}

.portal-search-results {
  padding: 0.6rem;
  overflow-y: auto;
  max-height: calc(80vh - 120px);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.portal-search-result-item {
  display: block;
  text-decoration: none;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  background-color: transparent;
  border: 1px solid transparent;
  transition: all 0.1s ease;
  color: inherit;
}

.portal-search-result-item:hover,
.portal-search-result-item.selected {
  background-color: #1e293b;
  border-color: rgba(56, 189, 248, 0.4);
}

.portal-search-result-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.2rem;
}

.portal-search-result-title {
  font-size: 0.92rem;
  font-weight: 700;
  color: #f8fafc;
}

.portal-search-result-item.selected .portal-search-result-title {
  color: var(--accent-cyan);
}

.portal-search-result-category {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--accent-cyan);
  background-color: rgba(14, 165, 233, 0.15);
  padding: 0.1rem 0.45rem;
  border-radius: 3px;
  white-space: nowrap;
}

.portal-search-result-section {
  font-size: 0.78rem;
  color: var(--accent-emerald, #10b981);
  font-family: var(--font-mono);
  margin-bottom: 0.25rem;
}

.portal-search-result-snippet {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.portal-search-result-snippet mark.search-highlight,
.portal-search-result-title mark.search-highlight,
.portal-search-result-section mark.search-highlight {
  background-color: rgba(56, 189, 248, 0.25);
  color: #38bdf8;
  padding: 0 2px;
  border-radius: 2px;
  font-weight: 600;
}

.portal-search-empty-state {
  padding: 3.5rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
  font-style: italic;
}

.portal-search-no-results {
  padding: 3rem 1.5rem;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.5;
}

.portal-search-footer {
  display: flex;
  justify-content: flex-end;
  gap: 1.25rem;
  padding: 0.5rem 1.25rem;
  background-color: #0a0f1d;
  border-top: 1px solid var(--border-color);
  font-size: 0.72rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}

.portal-search-footer kbd {
  background-color: #1e293b;
  border: 1px solid var(--border-subtle);
  color: #cbd5e1;
  padding: 0.05rem 0.3rem;
  border-radius: 3px;
  font-size: 0.68rem;
}