/**
 * Design Tokens - Single Source of Truth for Styling
 * =================================================
 * 
 * This file defines ALL design variables used across the application.
 * When creating new components, ALWAYS use these tokens instead of hardcoded values.
 * 
 * Usage Examples:
 *   background-color: var(--color-bg-primary);
 *   color: var(--color-text-primary);
 *   padding: var(--spacing-md);
 *   border-radius: var(--radius-md);
 *   font-size: var(--font-size-md);
 */

:root {
  /* ===================
     COLOR PALETTE — Neutral Grays + Patina Accent
     Body: #1A1A1A · Secondary: #6B6B6B · Borders: #E0E0E0
     Chrome bg: #F5F5F5 · Content bg: #FFFFFF
     Accent (rare punctuation): #5A7A6A (Patina)
     Temperature: neutral (default), cool, warm — set via data-temperature attribute
     =================== */

  /* Core Colors — Pure Neutrals */
  --color-white: #ffffff;
  --color-black: #000000;
  --color-dark: #1A1A1A;

  /* Primary Brand Colors — Neutral darks for UI chrome */
  --color-primary: #1A1A1A;           /* Links, primary actions, buttons */
  --color-primary-hover: #000000;     /* Hover state for primary */
  --color-primary-subtle: #F5F5F5;    /* Light primary background */

  /* Accent Color — Patina (rare punctuation only) */
  --color-accent: #5A7A6A;            /* Badges, presence dots, progress bars */
  --color-accent-dark: #445E50;       /* Darker accent variant */
  --color-accent-subtle: #D8E8E0;     /* Light accent background */

  /* Status Colors */
  --color-success: #5A7A6A;           /* Success states (uses accent) */
  --color-success-subtle: #EDF3F0;    /* Success background */
  --color-warning: #926E18;           /* Warning states (WCAG AA on white: 4.70:1) */
  --color-warning-subtle: #F5EAD0;    /* Warning background */
  --color-danger: #8A6060;            /* Error, danger, gaps */
  --color-danger-subtle: #F2EDED;     /* Danger background */
  --color-info: #3B6FA0;              /* Info states */
  --color-info-subtle: #EDF3F8;       /* Info background */
  --color-info-text: #3B6FA0;         /* Info text */
  --color-success-text: #2D6B4A;      /* Success text */

  /* Remark Environment Colors — derived from accent */
  --color-remark-accent: var(--color-accent);
  --color-remark-bg: color-mix(in srgb, var(--color-accent) 8%, transparent);
  --color-remark-text: #6B6B6B;       /* Remark text (neutral gray) */
  --color-purple: #6f42c1;            /* Merged, special states */
  --color-purple-subtle: #f5f0ff;     /* Purple background */

  /* Text Colors — Pure neutrals */
  --color-text-primary: #1A1A1A;      /* Main text */
  --color-text-secondary: #6B6B6B;    /* Muted text, descriptions */
  --color-text-tertiary: #8A8A8A;     /* Even more muted */
  --color-text-medium: #525252;       /* Medium emphasis text */
  --color-text-placeholder: #8A8A8A;  /* Placeholder text */
  --color-text-inverse: #ffffff;      /* Text on dark backgrounds */
  --color-text-link: #1A1A1A;         /* Link text */
  --color-text-link-hover: #000000;   /* Link hover */

  /* Background Colors — Pure whites/grays */
  --color-bg-primary: #ffffff;        /* Main content background */
  --color-bg-secondary: #F5F5F5;      /* Chrome background, sidebar */
  --color-bg-tertiary: #EBEBEB;       /* Subtle backgrounds, cards */
  --color-bg-hover: #EBEBEB;          /* Hover states */
  --color-bg-active: #D4D4D4;         /* Active/pressed states */
  --color-bg-overlay: rgba(0, 0, 0, 0.5);  /* Modal overlays */

  /* Border Colors — Pure grays */
  --color-border-primary: #E0E0E0;    /* Primary borders */
  --color-border-secondary: #EBEBEB;  /* Lighter borders (distinct from primary) */
  --color-border-tertiary: #F0F0F0;   /* Subtle borders */
  --color-border-strong: #CCCCCC;     /* Strong borders */
  --color-border-focus: #1A1A1A;      /* Focus ring */
  
  /* ===================
     SPACING SCALE
     =================== */
  --spacing-0: 0;
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  /* ===================
     TYPOGRAPHY
     =================== */
  
  /* Font Families */
  --font-sans: "SF Pro Text", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  --font-serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  
  /* Font Sizes */
  --font-size-xs: 11px;
  --font-size-sm: 12px;
  --font-size-md: 14px;
  --font-size-lg: 16px;
  --font-size-xl: 18px;
  --font-size-2xl: 20px;
  --font-size-3xl: 24px;
  --font-size-4xl: 32px;
  
  /* Font Weights */
  --font-weight-normal: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  
  /* Line Heights */
  --line-height-tight: 1.25;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.6;
  
  /* ===================
     BORDER RADIUS
     =================== */
  --radius-sm: 4px;
  --radius-md: 6px;
  --radius-lg: 8px;
  --radius-xl: 12px;
  --radius-full: 9999px;    /* Pills, avatars */
  
  /* ===================
     SHADOWS
     =================== */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 1px 3px rgba(0, 0, 0, 0.1), 0 1px 2px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1), 0 2px 4px rgba(0, 0, 0, 0.06);
  --shadow-xl: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
  --shadow-focus: 0 0 0 3px rgba(26, 26, 26, 0.25);

  /* ===================
     LAYOUT - Standardized Width System
     =================== */
  
  /* Layout Width Tokens */
  --layout-narrow: 768px;           /* Reading-focused: articles, wiki pages, docs prose */
  --layout-medium: 1024px;          /* General content with some complexity */
  --layout-wide: 1280px;            /* Data-heavy: tables, lists, feeds */
  --layout-max: 1400px;             /* Maximum container width */
  /* Full width = 100% (no max-width, used for app interfaces) */
  
  /* Responsive Breakpoints */
  --breakpoint-mobile: 640px;       /* Below: single column, touch-friendly */
  --breakpoint-tablet: 1024px;      /* Below: adapted layout, collapsible sidebars */
  --breakpoint-desktop: 1280px;     /* Above: full desktop experience */
  
  /* Content Spacing */
  --content-padding-mobile: 16px;   /* Horizontal padding on mobile */
  --content-padding-tablet: 24px;   /* Horizontal padding on tablet */
  --content-padding-desktop: 32px;  /* Horizontal padding on desktop */
  
  /* Legacy variables (kept for backwards compatibility) */
  --max-width: 1400px;
  --content-max-width: 1280px;
  --narrow-max-width: 768px;
  --min-width-fixed: 320px;
  --content-width-percent: 90%;
  --content-padding-x: 32px;
  --sidebar-width: 280px;
  --header-height: 50px;
  
  /* ===================
     TRANSITIONS
     =================== */
  --transition-fast: 0.1s ease;
  --transition-normal: 0.2s ease;
  --transition-slow: 0.3s ease;
  
  /* ===================
     Z-INDEX SCALE
     =================== */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;
  --z-toast: 700;
}

/* ===================
   BACKWARDS COMPATIBILITY
   Map old variables to new tokens
   =================== */
:root {
  /* Map old variables to new tokens for backwards compatibility */
  --primary-color: #1A1A1A;
  --secondary-color: #F5F5F5;
  --accent-color: #5A7A6A;
  --text-color: #1A1A1A;
  --light-text: #6B6B6B;
  --border-color: #E0E0E0;
  --success-color: #5A7A6A;
  --error-color: #8A6060;
  --warning-color: #926E18;
  --light-gray: #F5F5F5;
  --medium-gray: #EBEBEB;
  --dark-gray: #6B6B6B;
  --white: #ffffff;
  --toc-width: var(--sidebar-width);
  --toc-bg: #F5F5F5;
  --code-bg: #F5F5F5;

  --shadow-focus: 0 0 0 3px rgba(26, 26, 26, 0.25);
}

/* ===================
   COLOR TEMPERATURE — Warm (brown-tinted neutrals)
   Opt-in via data-temperature="warm" on <html>
   =================== */
:root[data-temperature="warm"] {
  --color-dark: #2A2420;
  --color-primary: #2A2420;
  --color-primary-hover: #1A1510;
  --color-primary-subtle: #F5F0E8;

  --color-text-primary: #2A2420;
  --color-text-secondary: #7D7062;
  --color-text-tertiary: #96897A;
  --color-text-medium: #5C5040;
  --color-text-placeholder: #96897A;
  --color-text-link: #2A2420;
  --color-text-link-hover: #1A1510;

  --color-bg-secondary: #F5F0E8;
  --color-bg-tertiary: #EBE4DA;
  --color-bg-hover: #EBE4DA;
  --color-bg-active: #DDD4C6;

  --color-border-primary: #DDD6CB;
  --color-border-secondary: #E8E2D8;
  --color-border-tertiary: #F0EBE3;
  --color-border-strong: #CCC3B4;
  --color-border-focus: #2A2420;

  /* Backwards compat — warm */
  --primary-color: #2A2420;
  --secondary-color: #F5F0E8;
  --text-color: #2A2420;
  --light-text: #7D7062;
  --border-color: #DDD6CB;
  --light-gray: #F5F0E8;
  --medium-gray: #EBE4DA;
  --dark-gray: #7D7062;
  --toc-bg: #F5F0E8;
  --code-bg: #F5F0E8;

  /* Remark — warm (text matches warm palette; accent/bg inherit from --color-accent) */
  --color-remark-text: #7D7062;

  --shadow-focus: 0 0 0 3px rgba(42, 36, 32, 0.3);
}

/* Dark mode — warm temperature has no effect (already neutral grays) */
:root[data-theme="dark"][data-temperature="warm"] {
  --color-dark: rgba(255, 255, 255, 0.87);
}

/* ===================
   COLOR TEMPERATURE — Cool (blue-gray tinted neutrals)
   Opt-in via data-temperature="cool" on <html>
   =================== */
:root[data-temperature="cool"] {
  --color-dark: #1D2433;
  --color-primary: #1D2433;
  --color-primary-hover: #0F1520;
  --color-primary-subtle: #F0F2F5;

  --color-text-primary: #1D2433;
  --color-text-secondary: #5E6978;
  --color-text-tertiary: #7C8694;
  --color-text-medium: #455060;
  --color-text-placeholder: #7C8694;
  --color-text-link: #1D2433;
  --color-text-link-hover: #0F1520;

  --color-bg-secondary: #F0F2F5;
  --color-bg-tertiary: #E3E7EC;
  --color-bg-hover: #E3E7EC;
  --color-bg-active: #CDD3DA;

  --color-border-primary: #DCE0E5;
  --color-border-secondary: #E8ECF0;
  --color-border-tertiary: #F0F2F5;
  --color-border-strong: #C4CAD2;
  --color-border-focus: #1D2433;

  /* Backwards compat — cool */
  --primary-color: #1D2433;
  --secondary-color: #F0F2F5;
  --text-color: #1D2433;
  --light-text: #5E6978;
  --border-color: #DCE0E5;
  --light-gray: #F0F2F5;
  --medium-gray: #E3E7EC;
  --dark-gray: #5E6978;
  --toc-bg: #F0F2F5;
  --code-bg: #F0F2F5;

  /* Remark — cool (text matches cool palette; accent/bg inherit from --color-accent) */
  --color-remark-text: #6B6B63;

  --shadow-focus: 0 0 0 3px rgba(29, 36, 51, 0.3);
}

/* Dark mode — cool temperature has no effect (dark mode uses neutral grays) */
:root[data-theme="dark"][data-temperature="cool"] {
  --color-dark: rgba(255, 255, 255, 0.87);
}

/* ===================
   DARK MODE SUPPORT
   Uses data-theme attribute for explicit control
   =================== */

/* Dark mode when explicitly set via data-theme="dark" */
/* Following Material Design guidelines: https://m2.material.io/design/color/dark-theme.html */
:root[data-theme="dark"] {
  /* Core Colors - inverted */
  --color-primary: rgba(255, 255, 255, 0.87);
  --color-primary-hover: rgba(255, 255, 255, 0.60);
  --color-primary-subtle: #333333;
  
  /* Text Colors - Material Design dark theme standards */
  /* High-emphasis: 87% opacity, Medium: 60%, Disabled: 38% */
  --color-text-primary: rgba(255, 255, 255, 0.87);      /* High-emphasis */
  --color-text-secondary: rgba(255, 255, 255, 0.60);    /* Medium-emphasis */
  --color-text-tertiary: rgba(255, 255, 255, 0.38);     /* Disabled */
  --color-text-placeholder: rgba(255, 255, 255, 0.38);
  --color-text-inverse: #333333;
  --color-text-link: rgba(255, 255, 255, 0.87);
  --color-text-link-hover: rgba(255, 255, 255, 0.60);
  
  /* Background Colors - Material Design dark theme */
  --color-bg-primary: #121212;           /* Base background */
  --color-bg-secondary: #1e1e1e;         /* Elevated surfaces */
  --color-bg-tertiary: #2a2a2a;          /* Cards, boxes */
  --color-bg-hover: #333333;             /* Hover states */
  --color-bg-active: #3a3a3a;            /* Active states */
  --color-bg-overlay: rgba(0, 0, 0, 0.7);
  
  /* Border Colors - inverted */
  --color-border-primary: #383838;
  --color-border-secondary: #2c2c2c;
  --color-border-tertiary: #232323;
  --color-border-strong: #444444;
  --color-border-focus: rgba(255, 255, 255, 0.87);

  /* Text Colors - dark mode additions */
  --color-text-medium: #cccccc;

  /* Status Colors - dark mode */
  --color-success-subtle: #1a3d2a;
  --color-success-text: #6ee7a0;
  --color-danger: #f87171;
  --color-danger-subtle: #3d1a1a;
  --color-warning: #fbbf24;
  --color-warning-subtle: #3d3a1a;
  --color-info: #6ea8fe;
  --color-info-subtle: #1a2d4d;
  --color-info-text: #6ea8fe;
  --color-purple: #a78bfa;
  --color-purple-subtle: #2d1a4d;

  /* Remark — dark (lighten accent for visibility on dark bg) */
  --color-remark-accent: color-mix(in srgb, var(--color-accent) 70%, white);
  --color-remark-bg: color-mix(in srgb, var(--color-accent) 12%, transparent);
  --color-remark-text: rgba(255, 255, 255, 0.55);

  /* Backwards compat - inverted */
  --primary-color: rgba(255, 255, 255, 0.87);
  --secondary-color: #1e1e1e;
  --accent-color: rgba(255, 255, 255, 0.87);
  --text-color: rgba(255, 255, 255, 0.87);
  --light-text: rgba(255, 255, 255, 0.60);
  --border-color: #383838;
  --light-gray: #1e1e1e;
  --medium-gray: #2a2a2a;
  --dark-gray: rgba(255, 255, 255, 0.60);
  --white: #121212;
  --toc-bg: #1e1e1e;
  --code-bg: #2a2a2a;
}

/* Dark mode body background - Material Design #121212 */
:root[data-theme="dark"] body {
  background-color: var(--color-bg-primary);
  color: var(--color-text-primary);
}
/* Dark mode common elements */
:root[data-theme="dark"] .card,
:root[data-theme="dark"] .wiki-page,
:root[data-theme="dark"] .sidebar,
:root[data-theme="dark"] .page-toc,
:root[data-theme="dark"] .settings-section,
:root[data-theme="dark"] .profile-card {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] header,
:root[data-theme="dark"] .header {
  background-color: rgba(18, 18, 18, 0.95);
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] input,
:root[data-theme="dark"] textarea,
:root[data-theme="dark"] select,
:root[data-theme="dark"] .form-input,
:root[data-theme="dark"] .form-control {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] input::placeholder,
:root[data-theme="dark"] textarea::placeholder {
  color: var(--color-text-tertiary);
}

:root[data-theme="dark"] .btn-secondary,
:root[data-theme="dark"] .btn-outline {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] .btn-secondary:hover,
:root[data-theme="dark"] .btn-outline:hover {
  background-color: var(--color-bg-hover);
}

:root[data-theme="dark"] code,
:root[data-theme="dark"] pre {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-primary);
}

:root[data-theme="dark"] .dropdown-menu,
:root[data-theme="dark"] .modal-content,
:root[data-theme="dark"] .popover {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] hr {
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] a {
  color: var(--color-text-primary);
}

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

:root[data-theme="dark"] .text-muted,
:root[data-theme="dark"] .text-secondary {
  color: var(--color-text-secondary) !important;
}

/* Dark mode role badges */
:root[data-theme="dark"] .role-badge.reader {
  background-color: var(--color-bg-active);
  color: var(--color-text-medium);
}

:root[data-theme="dark"] .role-badge.contributor {
  background-color: var(--color-success-subtle);
  color: var(--color-success-text);
}

:root[data-theme="dark"] .role-badge.editor {
  background-color: var(--color-info-subtle);
  color: var(--color-info-text);
}

:root[data-theme="dark"] .role-badge.moderator {
  background-color: var(--color-purple-subtle);
  color: var(--color-purple);
}

/* Dark mode tables */
:root[data-theme="dark"] table {
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] th,
:root[data-theme="dark"] td {
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] thead {
  background-color: var(--color-bg-tertiary);
}

:root[data-theme="dark"] tbody tr:nth-child(even) {
  background-color: var(--color-bg-secondary);
}

:root[data-theme="dark"] tbody tr:hover {
  background-color: var(--color-bg-tertiary);
}

/* Dark mode alerts */
:root[data-theme="dark"] .alert {
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] .alert-error,
:root[data-theme="dark"] .alert-danger {
  background-color: var(--color-danger-subtle);
  color: var(--color-danger);
  border-color: #7f1d1d;
}

:root[data-theme="dark"] .alert-success {
  background-color: var(--color-success-subtle);
  color: var(--color-success-text);
  border-color: #166534;
}

:root[data-theme="dark"] .alert-warning {
  background-color: var(--color-warning-subtle);
  color: var(--color-warning);
  border-color: #854d0e;
}

:root[data-theme="dark"] .alert-info {
  background-color: var(--color-info-subtle);
  color: var(--color-info-text);
  border-color: #1e40af;
}

/* Dark mode tabs */
:root[data-theme="dark"] .tab-btn {
  color: var(--color-text-medium);
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] .tab-btn.active {
  color: var(--color-text-primary);
  background-color: var(--color-bg-tertiary);
}

/* Dark mode list items */
:root[data-theme="dark"] .list-item,
:root[data-theme="dark"] .list-group-item {
  background-color: var(--color-bg-secondary);
  border-color: var(--color-border-primary);
}

:root[data-theme="dark"] .list-item:hover,
:root[data-theme="dark"] .list-group-item:hover {
  background-color: var(--color-bg-tertiary);
}

/* Dark mode badges */
:root[data-theme="dark"] .badge {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text-medium);
}

/* Dark mode empty states */
:root[data-theme="dark"] .empty-state {
  background-color: var(--color-bg-secondary);
  color: var(--color-text-secondary);
}

/* Dark mode inline style overrides 
   These use !important to override inline styles with hardcoded colors */

/* Background overrides for white backgrounds */
:root[data-theme="dark"] [style*="background: white"],
:root[data-theme="dark"] [style*="background:white"],
:root[data-theme="dark"] [style*="background-color: white"],
:root[data-theme="dark"] [style*="background-color:white"],
:root[data-theme="dark"] [style*="background: #fff"],
:root[data-theme="dark"] [style*="background:#fff"],
:root[data-theme="dark"] [style*="background-color: #fff"],
:root[data-theme="dark"] [style*="background-color:#fff"],
:root[data-theme="dark"] [style*="background: #ffffff"],
:root[data-theme="dark"] [style*="background:#ffffff"],
:root[data-theme="dark"] [style*="background-color: #ffffff"],
:root[data-theme="dark"] [style*="background-color:#ffffff"] {
  background-color: var(--color-bg-secondary) !important;
  color: var(--color-text-primary) !important;
}

/* Background overrides for light grays */
:root[data-theme="dark"] [style*="background: #f5f5f"],
:root[data-theme="dark"] [style*="background:#f5f5f"],
:root[data-theme="dark"] [style*="background-color: #f5f5f"],
:root[data-theme="dark"] [style*="background-color:#f5f5f"],
:root[data-theme="dark"] [style*="background: #f8f9fa"],
:root[data-theme="dark"] [style*="background:#f8f9fa"],
:root[data-theme="dark"] [style*="background-color: #f8f9fa"],
:root[data-theme="dark"] [style*="background-color:#f8f9fa"],
:root[data-theme="dark"] [style*="background: #f3f4f6"],
:root[data-theme="dark"] [style*="background:#f3f4f6"],
:root[data-theme="dark"] [style*="background-color: #f3f4f6"],
:root[data-theme="dark"] [style*="background-color:#f3f4f6"],
:root[data-theme="dark"] [style*="background: #e5e7eb"],
:root[data-theme="dark"] [style*="background:#e5e7eb"],
:root[data-theme="dark"] [style*="background-color: #e5e7eb"],
:root[data-theme="dark"] [style*="background-color:#e5e7eb"],
:root[data-theme="dark"] [style*="background: #e9ecef"],
:root[data-theme="dark"] [style*="background:#e9ecef"],
:root[data-theme="dark"] [style*="background-color: #e9ecef"],
:root[data-theme="dark"] [style*="background-color:#e9ecef"] {
  background-color: var(--color-bg-tertiary) !important;
}

/* Settings page specific dark mode */
:root[data-theme="dark"] .settings-page {
  background-color: var(--color-bg-primary) !important;
}

:root[data-theme="dark"] .settings-container {
  background-color: inherit;
}

:root[data-theme="dark"] .settings-header {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-primary) !important;
}

:root[data-theme="dark"] .settings-sidebar {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-primary) !important;
}

:root[data-theme="dark"] .settings-content {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-primary) !important;
}

:root[data-theme="dark"] .settings-nav-item {
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] .settings-nav-item:hover {
  background-color: var(--color-bg-tertiary) !important;
}

:root[data-theme="dark"] .settings-nav-item.active {
  background-color: var(--color-bg-tertiary) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .settings-input,
:root[data-theme="dark"] .settings-textarea,
:root[data-theme="dark"] .settings-select {
  background-color: var(--color-bg-tertiary) !important;
  color: var(--color-text-primary) !important;
  border-color: var(--color-border-primary) !important;
}

:root[data-theme="dark"] .settings-section h2 {
  border-color: var(--color-border-primary) !important;
}

/* Profile page specific dark mode */
:root[data-theme="dark"] .profile-card,
:root[data-theme="dark"] .profile-sidebar,
:root[data-theme="dark"] .profile-main {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-primary) !important;
}

/* Toast overrides */
:root[data-theme="dark"] .settings-toast.toast-success {
  background-color: #166534 !important;
}

:root[data-theme="dark"] .settings-toast.toast-error {
  background-color: #991b1b !important;
}

/* Theme preview cards in settings */
:root[data-theme="dark"] .settings-theme-light {
  background-color: var(--color-white);
}

:root[data-theme="dark"] .settings-theme-dark {
  background-color: #24292f;
}

/* Wiki page and content */
:root[data-theme="dark"] .wiki-page,
:root[data-theme="dark"] .page-content {
  background-color: var(--color-bg-secondary) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .page-toc {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-primary) !important;
}

:root[data-theme="dark"] .toc-link {
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] .toc-link:hover,
:root[data-theme="dark"] .toc-link.active {
  color: var(--color-text-primary) !important;
}

/* Math areas and related pages */
:root[data-theme="dark"] .area-card,
:root[data-theme="dark"] .subarea-card,
:root[data-theme="dark"] .theorem-card {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-primary) !important;
}

:root[data-theme="dark"] .area-card:hover,
:root[data-theme="dark"] .subarea-card:hover,
:root[data-theme="dark"] .theorem-card:hover {
  background-color: var(--color-bg-tertiary) !important;
}

/* Header in dark mode */
:root[data-theme="dark"] header {
  background-color: rgba(18, 18, 18, 0.95) !important;
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: var(--color-border-primary) !important;
}

:root[data-theme="dark"] .header-logo,
:root[data-theme="dark"] .logo-dropdown-btn span {
  color: var(--color-text-primary) !important;
}

/* Search box — token-based styles in style.css handle all themes/temperatures */

/* Dropdown menus in dark mode */
:root[data-theme="dark"] .logo-dropdown-panel,
:root[data-theme="dark"] .profile-dropdown-panel,
:root[data-theme="dark"] .dropdown-menu {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-primary) !important;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25) !important;
}

:root[data-theme="dark"] .logo-dropdown-item,
:root[data-theme="dark"] .profile-dropdown-item,
:root[data-theme="dark"] .dropdown-item {
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] .logo-dropdown-item:hover,
:root[data-theme="dark"] .profile-dropdown-item:hover,
:root[data-theme="dark"] .dropdown-item:hover {
  background-color: var(--color-bg-tertiary) !important;
  color: var(--color-text-primary) !important;
}

/* Shadows are slightly more visible in dark mode */
:root[data-theme="dark"] .card,
:root[data-theme="dark"] .modal-content,
:root[data-theme="dark"] .dropdown-menu,
:root[data-theme="dark"] .settings-content {
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 1px 2px rgba(0, 0, 0, 0.15) !important;
}

/* Footer in dark mode */
:root[data-theme="dark"] footer,
:root[data-theme="dark"] .footer {
  background-color: var(--color-bg-primary) !important;
  border-top-color: var(--color-border-primary) !important;
  color: var(--color-text-secondary) !important;
}

:root[data-theme="dark"] footer a,
:root[data-theme="dark"] .footer a {
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] footer a:hover,
:root[data-theme="dark"] .footer a:hover {
  color: var(--color-text-primary) !important;
}

/* Blockquotes and code blocks */
:root[data-theme="dark"] blockquote {
  background-color: var(--color-bg-tertiary) !important;
  border-left-color: var(--color-border-focus) !important;
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] .hljs,
:root[data-theme="dark"] .highlight {
  background-color: var(--color-bg-tertiary) !important;
}

/* Links that should stay visible in dark mode - Material Design 87% opacity */
:root[data-theme="dark"] a:not(.btn):not(.nav-link):not(.dropdown-item) {
  color: var(--color-text-primary);
}

:root[data-theme="dark"] a:not(.btn):not(.nav-link):not(.dropdown-item):hover {
  color: var(--color-text-secondary);
}

/* ===================
   COMPREHENSIVE DARK MODE FIXES
   =================== */

/* Backwards compat variable for --bg-dark (used in some templates) */
:root[data-theme="dark"] {
  --bg-dark: var(--color-bg-secondary);
}

/* Text color utilities that need dark mode (Material Design opacity standards) */
:root[data-theme="dark"] .text-gray-500,
:root[data-theme="dark"] .text-gray-600 {
  color: var(--color-text-secondary) !important;
}

:root[data-theme="dark"] .text-gray-700,
:root[data-theme="dark"] .text-gray-800 {
  color: rgba(255, 255, 255, 0.70) !important;
}

:root[data-theme="dark"] .text-gray-900,
:root[data-theme="dark"] .text-black {
  color: var(--color-text-primary) !important;
}

/* Default text color for headings and body text */
:root[data-theme="dark"] h1,
:root[data-theme="dark"] h2,
:root[data-theme="dark"] h3,
:root[data-theme="dark"] h4,
:root[data-theme="dark"] h5,
:root[data-theme="dark"] h6,
:root[data-theme="dark"] p,
:root[data-theme="dark"] span:not([class*="badge"]):not([class*="tag"]),
:root[data-theme="dark"] div:not([class*="card"]):not([class*="badge"]):not([class*="tag"]) {
  color: inherit;
}

/* Bold text in dark mode - same as high-emphasis */
:root[data-theme="dark"] b,
:root[data-theme="dark"] strong {
  color: var(--color-text-primary);
}

/* Ensure base body text color uses Material Design standard */
:root[data-theme="dark"] {
  color: var(--color-text-primary);
}

/* Profile page specific dark mode fixes */
:root[data-theme="dark"] .profile-page,
:root[data-theme="dark"] .profile-card,
:root[data-theme="dark"] .profile-sidebar,
:root[data-theme="dark"] .profile-main {
  background-color: var(--color-bg-primary) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .profile-page .card,
:root[data-theme="dark"] .profile-page .card-content,
:root[data-theme="dark"] .profile-page .card-header {
  background-color: var(--color-bg-secondary) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .profile-page .text-2xl,
:root[data-theme="dark"] .profile-page .text-xl,
:root[data-theme="dark"] .profile-page .text-lg,
:root[data-theme="dark"] .profile-page .font-bold,
:root[data-theme="dark"] .profile-page .font-semibold,
:root[data-theme="dark"] .profile-page .font-medium {
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .profile-page .text-muted-foreground,
:root[data-theme="dark"] .profile-page .text-sm,
:root[data-theme="dark"] .profile-page .card-subtitle {
  color: var(--color-text-secondary) !important;
}

/* Profile stats in dark mode */
:root[data-theme="dark"] .profile-stat,
:root[data-theme="dark"] .profile-stat-label {
  color: var(--color-text-secondary) !important;
}

:root[data-theme="dark"] .profile-stat-value {
  color: var(--color-text-primary) !important;
}

/* Role badges dark mode */
:root[data-theme="dark"] .role-badge.reader {
  background-color: var(--color-bg-active);
  color: var(--color-text-medium);
}

:root[data-theme="dark"] .role-badge.contributor {
  background-color: var(--color-success-subtle);
  color: var(--color-success-text);
}

:root[data-theme="dark"] .role-badge.editor {
  background-color: var(--color-info-subtle);
  color: var(--color-info-text);
}

:root[data-theme="dark"] .role-badge.moderator {
  background-color: var(--color-purple-subtle);
  color: var(--color-purple);
}

/* Tab navigation dark mode */
:root[data-theme="dark"] .tab-nav {
  background-color: var(--color-bg-hover) !important;
  border-color: var(--color-border-strong) !important;
}

:root[data-theme="dark"] .tab-nav-item {
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] .tab-nav-item.active {
  background-color: var(--color-bg-tertiary) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .tab-nav-item:hover:not(.active) {
  background-color: var(--color-bg-active) !important;
}

/* Activity heatmap legend dark mode */
:root[data-theme="dark"] .heatmap-legend,
:root[data-theme="dark"] .heatmap-month-label,
:root[data-theme="dark"] .heatmap-day-labels {
  color: var(--color-text-secondary) !important;
}

/* MathJax dark mode (the SVG content) */
:root[data-theme="dark"] mjx-container,
:root[data-theme="dark"] .MathJax,
:root[data-theme="dark"] .MathJax svg,
:root[data-theme="dark"] mjx-container svg {
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] mjx-container[jax="SVG"] > svg,
:root[data-theme="dark"] .MathJax svg {
  fill: currentColor;
}

/* Override MathJax specific stroke/fill colors */
:root[data-theme="dark"] mjx-container[jax="SVG"] g[stroke="currentColor"],
:root[data-theme="dark"] .MathJax g[stroke="currentColor"] {
  stroke: var(--color-text-primary);
}

:root[data-theme="dark"] mjx-container[jax="SVG"] g[fill="currentColor"],
:root[data-theme="dark"] .MathJax g[fill="currentColor"] {
  fill: var(--color-text-primary);
}

/* MathJax hover state in dark mode */
:root[data-theme="dark"] .MathJax:hover {
  background-color: rgba(255, 255, 255, 0.1) !important;
}

/* MathJax tooltip in dark mode */
:root[data-theme="dark"] .MathJax[data-original]::after {
  background-color: rgba(255, 255, 255, 0.9) !important;
  color: var(--color-black) !important;
}

/* Forms - comprehensive dark mode */
:root[data-theme="dark"] .form-group label,
:root[data-theme="dark"] .form-label {
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] .form-text,
:root[data-theme="dark"] .form-hint,
:root[data-theme="dark"] .help-text {
  color: var(--color-text-secondary) !important;
}

:root[data-theme="dark"] .form-control:focus,
:root[data-theme="dark"] input:focus,
:root[data-theme="dark"] textarea:focus,
:root[data-theme="dark"] select:focus {
  border-color: var(--color-border-focus) !important;
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.1) !important;
}

/* Chat widget dark mode */
:root[data-theme="dark"] .chat-container,
:root[data-theme="dark"] .chat-popup,
:root[data-theme="dark"] .chat-dock,
:root[data-theme="dark"] .chat-box,
:root[data-theme="dark"] .chat-messages {
  background-color: var(--color-bg-tertiary) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .chat-header {
  background-color: var(--color-bg-hover) !important;
  border-color: var(--color-border-strong) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .chat-input,
:root[data-theme="dark"] .chat-input-field,
:root[data-theme="dark"] .message-input {
  background-color: var(--color-bg-hover) !important;
  color: var(--color-text-primary) !important;
  border-color: var(--color-border-strong) !important;
}

:root[data-theme="dark"] .chat-message,
:root[data-theme="dark"] .message-bubble {
  background-color: var(--color-bg-hover) !important;
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .chat-message.own,
:root[data-theme="dark"] .message-bubble.own {
  background-color: var(--color-border-strong) !important;
}

:root[data-theme="dark"] .chat-sidebar,
:root[data-theme="dark"] .channel-list,
:root[data-theme="dark"] .dm-list {
  background-color: var(--color-bg-secondary) !important;
  border-color: var(--color-border-strong) !important;
}

:root[data-theme="dark"] .channel-item,
:root[data-theme="dark"] .dm-item {
  color: var(--color-text-medium) !important;
}

:root[data-theme="dark"] .channel-item:hover,
:root[data-theme="dark"] .dm-item:hover,
:root[data-theme="dark"] .channel-item.active,
:root[data-theme="dark"] .dm-item.active {
  background-color: var(--color-bg-hover) !important;
  color: var(--color-text-primary) !important;
}

/* Workspace sidebar dark mode */
:root[data-theme="dark"] .workspace-sidebar,
:root[data-theme="dark"] .slack-sidebar {
  background-color: var(--color-bg-secondary) !important;
}

:root[data-theme="dark"] .workspace-header,
:root[data-theme="dark"] .slack-header {
  background-color: var(--color-bg-tertiary) !important;
  border-color: var(--color-border-strong) !important;
}

/* Empty states dark mode */
:root[data-theme="dark"] .empty-state,
:root[data-theme="dark"] .no-results,
:root[data-theme="dark"] .placeholder-text {
  color: var(--color-text-secondary) !important;
}

:root[data-theme="dark"] .empty-state svg,
:root[data-theme="dark"] .no-results svg {
  color: var(--color-border-focus) !important;
}

/* Publication cards dark mode */
:root[data-theme="dark"] .bg-purple-100 {
  background-color: var(--color-purple-subtle) !important;
}

:root[data-theme="dark"] .text-purple-600 {
  color: var(--color-purple) !important;
}

/* Generic background utilities dark mode */
:root[data-theme="dark"] .bg-white {
  background-color: var(--color-bg-tertiary) !important;
}

:root[data-theme="dark"] .bg-gray-50,
:root[data-theme="dark"] .bg-gray-100 {
  background-color: var(--color-bg-hover) !important;
}

:root[data-theme="dark"] .bg-gray-200 {
  background-color: var(--color-bg-active) !important;
}

/* Border utilities dark mode */
:root[data-theme="dark"] .border-gray-100,
:root[data-theme="dark"] .border-gray-200 {
  border-color: var(--color-border-strong) !important;
}

:root[data-theme="dark"] .border-gray-300 {
  border-color: var(--color-border-strong) !important;
}

/* Avatar border dark mode */
:root[data-theme="dark"] .avatar,
:root[data-theme="dark"] .border-background {
  border-color: var(--color-bg-hover) !important;
}

/* Dividers and separators */
:root[data-theme="dark"] hr,
:root[data-theme="dark"] .divider,
:root[data-theme="dark"] .separator {
  border-color: var(--color-border-strong) !important;
  background-color: var(--color-border-strong) !important;
}

/* Card titles and subtitles */
:root[data-theme="dark"] .card-title {
  color: var(--color-text-primary) !important;
}

:root[data-theme="dark"] .card-subtitle,
:root[data-theme="dark"] .card-description {
  color: var(--color-text-secondary) !important;
}