/* ========================================
   React Native Wireless Debugging
   Documentation Site Styles
   ======================================== */

/* --- CSS Custom Properties (Light Mode) --- */
:root {
  --color-bg: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-sidebar: #f5f6f8;
  --color-bg-sidebar-hover: #e8eaed;
  --color-bg-sidebar-active: #dfe1e5;
  --color-text: #1a1a2e;
  --color-text-secondary: #555770;
  --color-text-sidebar: #4a4d56;
  --color-text-sidebar-active: #1a1a2e;
  --color-border: #e2e4e8;
  --color-border-light: #eff0f2;
  --color-accent: #2563eb;
  --color-accent-hover: #1d4ed8;
  --color-accent-bg: #eff4ff;
  --color-code-bg: #f4f5f7;
  --color-code-border: #e2e4e8;
  --color-inline-code-bg: #eef0f3;
  --color-inline-code-text: #c7254e;
  --color-warning-bg: #fff8e6;
  --color-warning-border: #f0ad4e;
  --color-warning-text: #8a6d3b;
  --color-tip-bg: #e8f5e9;
  --color-tip-border: #4caf50;
  --color-tip-text: #2e7d32;
  --color-info-bg: #e3f2fd;
  --color-info-border: #2196f3;
  --color-info-text: #1565c0;
  --color-important-bg: #fce4ec;
  --color-important-border: #e91e63;
  --color-important-text: #c2185b;
  --color-error-bg: #ffebee;
  --color-error-border: #f44336;
  --color-error-text: #c62828;
  --sidebar-width: 280px;
  --content-max-width: 820px;
  --header-height: 0px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
  --sidebar-border: rgba(0,0,0,0.08);
  --sidebar-border-top: rgba(0,0,0,0.08);
  --sidebar-hover-bg: rgba(0,0,0,0.05);
  --sidebar-input-bg: rgba(0,0,0,0.04);
  --sidebar-input-border: rgba(0,0,0,0.1);
  --sidebar-input-focus-bg: rgba(0,0,0,0.06);
  --sidebar-search-bg: #ffffff;
  --sidebar-search-border: rgba(0,0,0,0.1);
  --sidebar-toggle-border: rgba(0,0,0,0.12);
  --sidebar-toggle-hover-bg: rgba(0,0,0,0.05);
  --sidebar-scrollbar: rgba(0,0,0,0.1);
  --sidebar-section-title: #6b7280;
  --sidebar-icon: #9ca3af;
  --sidebar-input-placeholder: #9ca3af;
  --sidebar-input-text: #1f2937;
  --sidebar-input-bg: rgba(0,0,0,0.04);
  --sidebar-input-border: rgba(0,0,0,0.12);
  --sidebar-input-focus-bg: rgba(0,0,0,0.06);
  --sidebar-result-title: #1f2937;
  --sidebar-result-snippet: #6b7280;
  --sidebar-result-bg: #ffffff;
  --sidebar-result-hover: rgba(0,0,0,0.04);
  --sidebar-result-border: rgba(0,0,0,0.06);
  --mobile-header-text: #1f2937;
  --mobile-header-bg: #f5f6f8;
  --mobile-header-border: rgba(0,0,0,0.08);
  --mobile-overlay: rgba(0,0,0,0.4);
}

/* --- Dark Mode --- */
[data-theme="dark"] {
  --color-bg: #0f1117;
  --color-bg-secondary: #161920;
  --color-bg-sidebar: #0a0c10;
  --color-bg-sidebar-hover: #1a1d25;
  --color-bg-sidebar-active: #252830;
  --color-text: #e0e0e6;
  --color-text-secondary: #9a9cb0;
  --color-text-sidebar: #8a8da0;
  --color-text-sidebar-active: #ffffff;
  --color-border: #2a2d38;
  --color-border-light: #1e2028;
  --color-accent: #5b9bf5;
  --color-accent-hover: #7db3ff;
  --color-accent-bg: #1a2740;
  --color-code-bg: #161920;
  --color-code-border: #2a2d38;
  --color-inline-code-bg: #1e2028;
  --color-inline-code-text: #e06c88;
  --color-warning-bg: #2a2418;
  --color-warning-border: #b8860b;
  --color-warning-text: #daa520;
  --color-tip-bg: #1a2e1a;
  --color-tip-border: #4caf50;
  --color-tip-text: #81c784;
  --color-info-bg: #162032;
  --color-info-border: #2196f3;
  --color-info-text: #64b5f6;
  --color-important-bg: #2e1520;
  --color-important-border: #e91e63;
  --color-important-text: #f48fb1;
  --color-error-bg: #2e1a1a;
  --color-error-border: #f44336;
  --color-error-text: #ef9a9a;
  --sidebar-border: rgba(255,255,255,0.06);
  --sidebar-border-top: rgba(255,255,255,0.06);
  --sidebar-hover-bg: rgba(255,255,255,0.06);
  --sidebar-input-bg: rgba(255,255,255,0.06);
  --sidebar-input-border: rgba(255,255,255,0.08);
  --sidebar-input-focus-bg: rgba(255,255,255,0.09);
  --sidebar-search-bg: #1e2028;
  --sidebar-search-border: rgba(255,255,255,0.1);
  --sidebar-toggle-border: rgba(255,255,255,0.1);
  --sidebar-toggle-hover-bg: rgba(255,255,255,0.08);
  --sidebar-scrollbar: rgba(255,255,255,0.1);
  --sidebar-section-title: #6b7280;
  --sidebar-icon: #9a9eb0;
  --sidebar-input-placeholder: #5a5e6a;
  --sidebar-input-text: #e0e0e6;
  --sidebar-input-bg: rgba(255,255,255,0.06);
  --sidebar-input-border: rgba(255,255,255,0.08);
  --sidebar-input-focus-bg: rgba(255,255,255,0.09);
  --sidebar-result-title: #e0e0e6;
  --sidebar-result-snippet: #7a7e8a;
  --sidebar-result-bg: #1e2028;
  --sidebar-result-hover: rgba(255,255,255,0.06);
  --sidebar-result-border: rgba(255,255,255,0.05);
  --mobile-header-text: #ffffff;
  --mobile-header-bg: #0a0c10;
  --mobile-header-border: rgba(255,255,255,0.06);
  --mobile-overlay: rgba(0,0,0,0.5);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 60px;
}

body {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: var(--color-accent);
  text-decoration: none;
}

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

/* --- Layout --- */
.layout {
  display: flex;
  min-height: 100vh;
}

/* --- Sidebar --- */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: var(--color-bg-sidebar);
  color: var(--color-text-sidebar);
  overflow-y: auto;
  z-index: 100;
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--color-border);
}

.sidebar-header {
  padding: 20px 20px 16px;
  border-bottom: 1px solid var(--sidebar-border-top);
  flex-shrink: 0;
}

.sidebar-header h1 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 4px;
}

.sidebar-header .sidebar-subtitle {
  font-size: 11.5px;
  color: var(--color-text-secondary);
  line-height: 1.4;
}

.sidebar-nav {
  flex: 1;
  overflow-y: auto;
  padding: 12px 0;
}

.sidebar-nav::-webkit-scrollbar {
  width: 4px;
}

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

.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--sidebar-scrollbar);
  border-radius: 2px;
}

.nav-section {
  margin-bottom: 4px;
}

.nav-section-title {
  display: block;
  padding: 6px 20px;
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--sidebar-section-title);
  margin-top: 12px;
}

.nav-link {
  display: block;
  padding: 6px 20px 6px 28px;
  font-size: 13.5px;
  color: var(--color-text-sidebar);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
  border-left: 2px solid transparent;
  line-height: 1.5;
}

.nav-link:hover {
  background: var(--color-bg-sidebar-hover);
  color: var(--color-text-sidebar-active);
  text-decoration: none;
}

.nav-link.active {
  background: var(--color-bg-sidebar-active);
  color: var(--color-text-sidebar-active);
  border-left-color: var(--color-accent);
  font-weight: 500;
}

.sidebar-footer {
  padding: 12px 20px;
  border-top: 1px solid var(--sidebar-border-top);
  flex-shrink: 0;
}

.theme-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  background: none;
  border: 1px solid var(--sidebar-toggle-border);
  color: var(--sidebar-icon);
  padding: 6px 12px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 12.5px;
  font-family: var(--font-sans);
  width: 100%;
  transition: background 0.15s, color 0.15s;
}

.theme-toggle:hover {
  background: var(--sidebar-toggle-hover-bg);
  color: var(--color-text);
}

.theme-toggle svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* --- Search --- */
.search-container {
  position: relative;
  padding: 12px 16px;
  border-bottom: 1px solid var(--sidebar-border-top);
  flex-shrink: 0;
}

.search-input-wrapper {
  position: relative;
}

.search-input-wrapper svg {
  position: absolute;
  left: 10px;
  top: 50%;
  transform: translateY(-50%);
  width: 14px;
  height: 14px;
  color: var(--sidebar-icon);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 8px 12px 8px 32px;
  background: var(--sidebar-input-bg);
  border: 1px solid var(--sidebar-input-border);
  border-radius: 8px;
  color: var(--sidebar-input-text);
  font-size: 13px;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

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

.search-input:focus {
  border-color: var(--color-accent);
  background: var(--sidebar-input-focus-bg);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

[data-theme="dark"] .search-input:focus {
  box-shadow: 0 0 0 3px rgba(91, 155, 245, 0.15);
}

.search-results {
  position: absolute;
  top: calc(100% + 6px);
  left: 16px;
  right: 16px;
  background: var(--sidebar-result-bg);
  border: 1px solid var(--sidebar-search-border);
  border-radius: 8px;
  max-height: 320px;
  overflow-y: auto;
  z-index: 200;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease;
  pointer-events: none;
}

.search-results.visible {
  display: block;
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.search-result-item {
  display: block;
  padding: 10px 14px;
  border-bottom: 1px solid var(--sidebar-result-border);
  text-decoration: none;
  transition: background 0.1s;
}

.search-result-item:hover {
  background: var(--sidebar-result-hover);
  text-decoration: none;
}

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

.search-result-title {
  font-size: 13px;
  font-weight: 500;
  color: var(--sidebar-result-title);
  margin-bottom: 2px;
}

.search-result-snippet {
  font-size: 12px;
  color: var(--sidebar-result-snippet);
  line-height: 1.4;
}

.search-result-snippet mark {
  background: rgba(37, 99, 235, 0.3);
  color: var(--color-text);
  border-radius: 2px;
  padding: 0 2px;
}

.search-no-results {
  padding: 14px;
  font-size: 13px;
  color: var(--sidebar-result-snippet);
  text-align: center;
}

/* --- Mobile sidebar toggle --- */
.mobile-header {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 52px;
  background: var(--mobile-header-bg);
  z-index: 150;
  align-items: center;
  padding: 0 16px;
  border-bottom: 2px solid var(--color-accent);
}

.mobile-menu-btn {
  background: none;
  border: none;
  color: var(--sidebar-icon);
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-btn:hover {
  background: var(--sidebar-toggle-hover-bg);
}

.mobile-menu-btn svg {
  width: 22px;
  height: 22px;
}

.mobile-header-title {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.mobile-header-title {
  font-size: 14px;
  font-weight: 600;
  color: var(--mobile-header-text);
  margin-left: 12px;
}

.sidebar-overlay {
  position: fixed;
  inset: 0;
  background: var(--mobile-overlay);
  z-index: 99;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

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

/* --- Main Content --- */
.main-content {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0;
}

.content {
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: 40px 48px 80px;
}

/* --- Typography --- */
.content h1 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 8px;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.content h2 {
  font-size: 22px;
  font-weight: 600;
  line-height: 1.3;
  margin-top: 48px;
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.content h3 {
  font-size: 18px;
  font-weight: 600;
  line-height: 1.35;
  margin-top: 32px;
  margin-bottom: 12px;
  color: var(--color-text);
}

.content h4 {
  font-size: 15.5px;
  font-weight: 600;
  line-height: 1.4;
  margin-top: 24px;
  margin-bottom: 8px;
  color: var(--color-text);
}

.content p {
  margin-bottom: 16px;
}

.content ul, .content ol {
  margin-bottom: 16px;
  padding-left: 24px;
}

.content li {
  margin-bottom: 6px;
}

.content strong {
  font-weight: 600;
}

.content .subtitle {
  font-size: 17px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  line-height: 1.5;
}

/* --- Inline Code --- */
.content code {
  font-family: var(--font-mono);
  font-size: 13.5px;
  background: var(--color-inline-code-bg);
  color: var(--color-inline-code-text);
  padding: 1px 6px;
  border-radius: 4px;
  word-break: break-word;
}

/* --- Code Blocks --- */
.code-block {
  position: relative;
  margin-bottom: 20px;
}

.code-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--color-code-border);
  border: 1px solid var(--color-code-border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  padding: 6px 12px;
}

.code-block-lang {
  font-size: 11.5px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.code-block-copy {
  background: none;
  border: none;
  color: var(--color-text-secondary);
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-family: var(--font-sans);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: background 0.15s, color 0.15s;
}

.code-block-copy:hover {
  background: rgba(0,0,0,0.06);
  color: var(--color-text);
}

[data-theme="dark"] .code-block-copy:hover {
  background: rgba(255,255,255,0.08);
}

.code-block-copy.copied {
  color: var(--color-tip-border);
}

.code-block-copy svg {
  width: 14px;
  height: 14px;
}

.content pre {
  background: var(--color-code-bg);
  border: 1px solid var(--color-code-border);
  border-radius: 0 0 8px 8px;
  padding: 16px 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 13px;
  line-height: 1.65;
  color: var(--color-text);
  margin-bottom: 20px;
  tab-size: 2;
}

.content pre code {
  background: none;
  color: inherit;
  padding: 0;
  border-radius: 0;
  font-size: inherit;
  word-break: normal;
}

/* Standalone pre (without .code-block wrapper) */
.content pre:not(.code-block pre) {
  position: relative;
  border-radius: 8px;
}

/* --- Tables --- */
.content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 20px;
  font-size: 14px;
}

.content th, .content td {
  text-align: left;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
}

.content th {
  background: var(--color-bg-secondary);
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  color: var(--color-text-secondary);
}

.content td {
  vertical-align: top;
}

/* --- Callouts / Admonitions --- */
.callout {
  padding: 14px 18px;
  border-radius: 6px;
  border-left: 4px solid;
  margin-bottom: 20px;
  font-size: 14px;
  line-height: 1.6;
}

.callout-title {
  font-weight: 600;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.callout-title svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.callout p:last-child {
  margin-bottom: 0;
}

.callout-warning {
  background: var(--color-warning-bg);
  border-color: var(--color-warning-border);
  color: var(--color-warning-text);
}

.callout-tip {
  background: var(--color-tip-bg);
  border-color: var(--color-tip-border);
  color: var(--color-tip-text);
}

.callout-info {
  background: var(--color-info-bg);
  border-color: var(--color-info-border);
  color: var(--color-info-text);
}

.callout-important {
  background: var(--color-important-bg);
  border-color: var(--color-important-border);
  color: var(--color-important-text);
}

.callout-error {
  background: var(--color-error-bg);
  border-color: var(--color-error-border);
  color: var(--color-error-text);
}

/* --- Horizontal Rule --- */
.content hr {
  border: none;
  border-top: 1px solid var(--color-border-light);
  margin: 32px 0;
}

/* --- Page Navigation (Prev/Next) --- */
.page-nav {
  display: flex;
  gap: 16px;
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--color-border-light);
}

.page-nav a {
  flex: 1;
  display: block;
  padding: 16px 20px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}

.page-nav a:hover {
  border-color: var(--color-accent);
  background: var(--color-accent-bg);
  text-decoration: none;
}

.page-nav-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 4px;
}

.page-nav-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-accent);
}

.page-nav .next {
  text-align: right;
}

/* --- Homepage specific --- */
.home-hero {
  margin-bottom: 40px;
}

.home-hero h1 {
  margin-bottom: 12px;
}

.home-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.home-feature {
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  text-decoration: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.home-feature:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.08);
  text-decoration: none;
}

.home-feature-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.home-feature-desc {
  font-size: 13.5px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* --- Device Info Table --- */
.device-table {
  margin-bottom: 24px;
}

/* --- Flow Diagrams (ASCII art in code blocks) --- */
.content pre:has(code) {
  overflow-x: auto;
}

/* --- Responsive --- */
@media (max-width: 900px) {
  .mobile-header {
    display: flex;
  }

  .sidebar {
    top: 52px;
    bottom: 0;
    height: calc(100vh - 52px);
  }

  .sidebar {
    transform: translateX(-100%);
    transition: transform 0.25s ease;
    visibility: hidden;
    pointer-events: none;
  }

  .sidebar.open {
    transform: translateX(0);
    visibility: visible;
    pointer-events: auto;
  }

  .main-content {
    margin-left: 0;
    padding-top: 56px;
  }

  .content {
    padding: 16px 20px 60px;
  }

  .content h1 {
    font-size: 24px;
  }

  .home-hero h1 {
    font-size: 22px;
  }

  .content h2 {
    font-size: 19px;
  }

  .content h3 {
    font-size: 16px;
  }

  .home-features {
    grid-template-columns: 1fr;
  }

  .page-nav {
    flex-direction: column;
  }

  .page-nav .next {
    text-align: left;
  }
}

@media (max-width: 480px) {
  .content {
    padding: 16px 14px 48px;
  }

  .content pre {
    padding: 12px 14px;
    font-size: 12.5px;
    border-radius: 6px;
  }

  .code-block-header {
    border-radius: 6px 6px 0 0;
  }

  .content table {
    font-size: 13px;
  }

  .content th, .content td {
    padding: 8px 10px;
  }

  .mermaid {
    margin: 12px -20px;
    padding: 0 4px;
  }

  .mermaid svg {
    font-size: 12px;
  }
}

/* --- Scrollbar (main content) --- */
.main-content::-webkit-scrollbar {
  width: 6px;
}

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

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

/* --- Print --- */
@media print {
  .sidebar, .mobile-header, .sidebar-overlay, .page-nav {
    display: none !important;
  }

  .main-content {
    margin-left: 0;
  }

  .content {
    max-width: 100%;
    padding: 0;
  }
}

/* --- Mermaid Diagrams --- */
.mermaid {
  text-align: center;
  margin: 20px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.mermaid svg {
  min-width: 600px;
  max-width: 100%;
  height: auto;
  font-size: 15px;
}

.mermaid .nodeLabel {
  font-size: 15px !important;
}

.mermaid .edgeLabel {
  font-size: 13px;
}