/* ============================================================
   Membership Docs Intranet — Stylesheet
   Branding: #2CC5CE primary cyan, #0B3954 navy, #F2F4F6 background
   ============================================================ */

/* --- CSS Custom Properties --- */
:root {
  /* Primary palette — Membership cyan */
  --primary: #2CC5CE;
  --primary-dark: #0B3954;
  --primary-light: #4DD8E0;
  --primary-bg: #E6F9FA;

  /* Neutral palette */
  --bg: #F2F4F6;
  --bg-sidebar: #FFFFFF;
  --bg-content: #FFFFFF;
  --bg-card: #FFFFFF;
  --bg-code: #F5F7FA;
  --bg-table-alt: #F8F9FB;
  --bg-hover: #EDF5F6;
  --bg-active: #E6F9FA;
  --bg-search: #F5F7FA;

  --text: #0B3954;
  --text-secondary: #3D5A6E;
  --text-muted: #7B93A4;
  --text-inverse: #FFFFFF;

  --border: #D6DEE4;
  --border-light: #E8EDF1;
  --shadow-sm: 0 1px 3px rgba(11,57,84,0.06);
  --shadow-md: 0 4px 12px rgba(11,57,84,0.08);
  --shadow-lg: 0 8px 24px rgba(11,57,84,0.12);

  /* Layout */
  --sidebar-width: 280px;
  --header-height: 56px;
  --content-max-width: 960px;
  --radius: 8px;
  --radius-sm: 4px;

  /* Typography */
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', Consolas, monospace;

  /* Transitions */
  --transition: 0.2s ease;
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --primary: #4DD8E0;
  --primary-dark: #2CC5CE;
  --primary-light: #6DE5EC;
  --primary-bg: #0D2A3A;

  --bg: #0A1520;
  --bg-sidebar: #0E1E2C;
  --bg-content: #122435;
  --bg-card: #162D40;
  --bg-code: #0E1E2C;
  --bg-table-alt: #112230;
  --bg-hover: #1A3548;
  --bg-active: #0D2A3A;
  --bg-search: #162D40;

  --text: #E0EBF1;
  --text-secondary: #A8BEC9;
  --text-muted: #607D8B;
  --text-inverse: #0A1520;

  --border: #1E3A4E;
  --border-light: #16304A;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.2);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.4);
}

/* --- Reset & Base --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 15px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
  overflow: hidden;
  height: 100vh;
}

/* --- Header --- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: var(--primary-dark);
  color: var(--text-inverse);
  display: flex;
  align-items: center;
  padding: 0 20px;
  z-index: 1000;
  box-shadow: var(--shadow-md);
}

.header-logo {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  text-decoration: none;
  color: var(--text-inverse);
}

.header-logo svg {
  width: 28px;
  height: 28px;
  color: var(--primary);
}

.header-spacer {
  flex: 1;
}

.header-search {
  position: relative;
  width: 320px;
}

.header-search input {
  width: 100%;
  padding: 7px 12px 7px 36px;
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 20px;
  background: rgba(255,255,255,0.12);
  color: var(--text-inverse);
  font-size: 0.87rem;
  font-family: var(--font);
  outline: none;
  transition: var(--transition);
}

.header-search input::placeholder {
  color: rgba(255,255,255,0.55);
}

.header-search input:focus {
  background: rgba(255,255,255,0.22);
  border-color: var(--primary);
}

.header-search .search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  opacity: 0.65;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: 16px;
}

.btn-icon {
  background: none;
  border: none;
  color: var(--text-inverse);
  cursor: pointer;
  padding: 6px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.btn-icon:hover {
  background: rgba(255,255,255,0.15);
}

.btn-icon svg {
  width: 20px;
  height: 20px;
}

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border);
  overflow-y: auto;
  overflow-x: hidden;
  z-index: 900;
  transition: transform var(--transition), width var(--transition);
  padding-bottom: 20px;
}

.sidebar::-webkit-scrollbar {
  width: 5px;
}

.sidebar::-webkit-scrollbar-track {
  background: transparent;
}

.sidebar::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 3px;
}

.sidebar::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Nav items */
.nav-item {
  display: flex;
  align-items: center;
  padding: 6px 20px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.87rem;
  transition: var(--transition);
  text-decoration: none;
  gap: 10px;
  border-left: 3px solid transparent;
  user-select: none;
}

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

.nav-item.active {
  background: var(--bg-active);
  color: var(--primary-dark);
  border-left-color: var(--primary);
  font-weight: 500;
}

[data-theme="dark"] .nav-item.active {
  color: var(--primary);
}

.nav-item .nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.6;
}

.nav-item.active .nav-icon {
  opacity: 1;
  color: var(--primary);
}

/* Collapsible groups */
.nav-group-header {
  display: flex;
  align-items: center;
  padding: 6px 20px;
  cursor: pointer;
  color: var(--text-secondary);
  font-size: 0.87rem;
  font-weight: 500;
  transition: var(--transition);
  gap: 10px;
  border-left: 3px solid transparent;
  user-select: none;
}

.nav-group-header:hover {
  background: var(--bg-hover);
  color: var(--text);
}

.nav-group-header .nav-icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  opacity: 0.6;
}

.nav-group-header .chevron {
  width: 14px;
  height: 14px;
  margin-left: auto;
  transition: transform var(--transition);
  opacity: 0.4;
}

.nav-group-header.expanded .chevron {
  transform: rotate(90deg);
}

.nav-group-children {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.3s ease;
}

.nav-group-children.expanded {
  max-height: 2000px;
}

.nav-group-children .nav-item {
  padding-left: 48px;
  font-size: 0.83rem;
}

.nav-group-children .nav-group-children .nav-item {
  padding-left: 64px;
  font-size: 0.8rem;
}

/* Sidebar toggle for mobile */
.sidebar-toggle {
  display: none;
  position: fixed;
  bottom: 20px;
  left: 20px;
  z-index: 1100;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary-dark);
  color: var(--text-inverse);
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  align-items: center;
  justify-content: center;
}

.sidebar-toggle svg {
  width: 24px;
  height: 24px;
}

/* --- Main Content --- */
.main {
  margin-left: var(--sidebar-width);
  margin-top: var(--header-height);
  flex: 1;
  overflow-y: auto;
  height: calc(100vh - var(--header-height));
  background: var(--bg);
}

.content-wrapper {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 28px 40px 60px;
}

/* --- Breadcrumbs --- */
.breadcrumbs {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 0 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}

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

.breadcrumbs a:hover {
  color: var(--primary-dark);
}

[data-theme="dark"] .breadcrumbs a:hover {
  color: var(--primary);
}

.breadcrumbs .separator {
  font-size: 0.7rem;
  opacity: 0.5;
}

.breadcrumbs .current {
  color: var(--text-secondary);
  font-weight: 500;
}

/* --- Dashboard --- */
.dashboard {
  animation: fadeIn 0.3s ease;
}

.dashboard h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.dashboard .subtitle {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 32px;
}

.dashboard-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-bottom: 36px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
}

.stat-card .stat-value {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--primary-dark);
  line-height: 1.2;
}

[data-theme="dark"] .stat-card .stat-value {
  color: var(--primary);
}

.stat-card .stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.dashboard-sections {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.section-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.section-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.section-card .card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  background: var(--primary-bg);
  color: var(--primary-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}

[data-theme="dark"] .section-card .card-icon {
  color: var(--primary);
}

.section-card .card-icon svg {
  width: 22px;
  height: 22px;
}

.section-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}

.section-card p {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.section-card .card-count {
  display: inline-block;
  margin-top: 10px;
  font-size: 0.75rem;
  color: var(--primary-dark);
  font-weight: 500;
}

[data-theme="dark"] .section-card .card-count {
  color: var(--primary);
}

/* --- Markdown Content Styling --- */
.markdown-body {
  animation: fadeIn 0.25s ease;
}

.markdown-body h1 {
  font-size: 1.7rem;
  font-weight: 700;
  margin: 0 0 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  color: var(--text);
  line-height: 1.3;
}

.markdown-body h2 {
  font-size: 1.35rem;
  font-weight: 600;
  margin: 32px 0 12px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text);
}

.markdown-body h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin: 24px 0 8px;
  color: var(--text);
}

.markdown-body h4 {
  font-size: 1rem;
  font-weight: 600;
  margin: 20px 0 6px;
  color: var(--text-secondary);
}

.markdown-body h5, .markdown-body h6 {
  font-size: 0.9rem;
  font-weight: 600;
  margin: 16px 0 4px;
  color: var(--text-secondary);
}

.markdown-body p {
  margin: 0 0 14px;
  line-height: 1.7;
}

.markdown-body a {
  color: var(--primary-dark);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

[data-theme="dark"] .markdown-body a {
  color: var(--primary);
}

.markdown-body a:hover {
  border-bottom-color: var(--primary);
}

.markdown-body strong {
  font-weight: 600;
  color: var(--text);
}

.markdown-body em {
  font-style: italic;
}

/* Lists */
.markdown-body ul, .markdown-body ol {
  margin: 0 0 14px;
  padding-left: 24px;
}

.markdown-body li {
  margin-bottom: 4px;
  line-height: 1.6;
}

.markdown-body li > ul, .markdown-body li > ol {
  margin-top: 4px;
  margin-bottom: 0;
}

/* Code */
.markdown-body code {
  font-family: var(--font-mono);
  font-size: 0.87em;
  background: var(--bg-code);
  padding: 2px 6px;
  border-radius: var(--radius-sm);
  color: var(--primary-dark);
}

[data-theme="dark"] .markdown-body code {
  color: var(--primary-light);
}

.markdown-body pre {
  margin: 0 0 16px;
  border-radius: var(--radius);
  overflow-x: auto;
  border: 1px solid var(--border);
}

.markdown-body pre code {
  display: block;
  padding: 16px 20px;
  background: var(--bg-code);
  font-size: 0.83rem;
  line-height: 1.6;
  color: var(--text);
}

/* Tables */
.markdown-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 0 0 16px;
  font-size: 0.87rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}

.markdown-body thead {
  background: var(--bg-code);
}

.markdown-body th {
  padding: 10px 14px;
  text-align: left;
  font-weight: 600;
  color: var(--text);
  border-bottom: 2px solid var(--border);
  position: sticky;
  top: 0;
  background: var(--bg-code);
  white-space: nowrap;
}

.markdown-body td {
  padding: 8px 14px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
}

.markdown-body tbody tr:nth-child(even) {
  background: var(--bg-table-alt);
}

.markdown-body tbody tr:hover {
  background: var(--bg-hover);
}

/* Blockquotes */
.markdown-body blockquote {
  margin: 0 0 16px;
  padding: 10px 16px;
  border-left: 4px solid var(--primary);
  background: var(--primary-bg);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-secondary);
}

.markdown-body blockquote p:last-child {
  margin-bottom: 0;
}

/* Horizontal rules */
.markdown-body hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

/* Images */
.markdown-body img {
  max-width: 100%;
  border-radius: var(--radius);
  border: 1px solid var(--border);
}

/* Task lists */
.markdown-body input[type="checkbox"] {
  margin-right: 6px;
}

/* --- Search Results --- */
.search-results {
  animation: fadeIn 0.2s ease;
}

.search-results h2 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.search-result-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 10px;
  cursor: pointer;
  transition: var(--transition);
}

.search-result-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.search-result-item h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 4px;
}

[data-theme="dark"] .search-result-item h3 {
  color: var(--primary);
}

.search-result-item .result-path {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-family: var(--font-mono);
}

.search-result-item .result-snippet {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.search-result-item mark {
  background: #B2EBF2;
  color: var(--text);
  padding: 1px 2px;
  border-radius: 2px;
}

[data-theme="dark"] .search-result-item mark {
  background: #004D56;
  color: #B2EBF2;
}

/* --- Animations --- */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

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

/* --- Responsive --- */
@media (max-width: 1100px) {
  .dashboard-sections {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.open {
    transform: translateX(0);
    box-shadow: var(--shadow-lg);
  }

  .main {
    margin-left: 0;
  }

  .sidebar-toggle {
    display: flex;
  }

  .header-search {
    width: 200px;
  }

  .content-wrapper {
    padding: 20px 24px 40px;
  }

  .dashboard-stats {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  .dashboard-sections {
    grid-template-columns: 1fr;
  }

  .dashboard-stats {
    grid-template-columns: 1fr 1fr;
  }

  .header-search {
    display: none;
  }

  .content-wrapper {
    padding: 16px 16px 32px;
  }

  .markdown-body table {
    font-size: 0.8rem;
  }

  .markdown-body th, .markdown-body td {
    padding: 6px 8px;
  }
}

/* --- Scrollbar for main content --- */
.main::-webkit-scrollbar {
  width: 8px;
}

.main::-webkit-scrollbar-track {
  background: transparent;
}

.main::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}

.main::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* --- Mermaid Diagrams --- */
.mermaid {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin: 16px 0;
  text-align: center;
  overflow-x: auto;
}

/* --- Section Card as Link --- */
a.section-card {
  text-decoration: none;
  color: inherit;
  display: block;
}

/* --- Search Page --- */
.search-page h1 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 20px;
}

#search-page-input-wrap {
  margin-bottom: 24px;
}

#search-page-input {
  width: 100%;
  max-width: 600px;
  padding: 12px 16px;
  font-size: 1rem;
  font-family: var(--font);
  border: 2px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  color: var(--text);
  outline: none;
  transition: var(--transition);
}

#search-page-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-bg);
}

.search-count {
  font-size: 0.87rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.search-hint, .search-no-results {
  color: var(--text-muted);
  font-size: 0.93rem;
  padding: 20px 0;
}

a.search-result-item {
  display: block;
  text-decoration: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 10px;
  transition: var(--transition);
}

a.search-result-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

a.search-result-item h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 6px;
}

[data-theme="dark"] a.search-result-item h3 {
  color: var(--primary);
}

.result-snippet {
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.result-snippet mark {
  background: #B2EBF2;
  color: var(--text);
  padding: 1px 2px;
  border-radius: 2px;
}

[data-theme="dark"] .result-snippet mark {
  background: #004D56;
  color: #B2EBF2;
}

/* --- Print --- */
@media print {
  .sidebar, .header, .sidebar-toggle, .header-search {
    display: none !important;
  }
  .main {
    margin: 0;
  }
  .content-wrapper {
    max-width: 100%;
    padding: 0;
  }
}