/**
 * Design Tokens - Learn CCNA Platform
 *
 * Comprehensive design system tokens for consistent UI/UX across the platform.
 * Based on UI/UX Agent recommendations and WCAG 2.2 AA compliance.
 *
 * Created: 2025-11-23
 * Version: 1.0
 */

:root {
  /* ========================================
     COLOR PALETTE - PRIMARY
     Focus & Calm (Blue tones)
     ======================================== */
  --color-primary-50: #eff6ff;
  --color-primary-100: #dbeafe;
  --color-primary-200: #bfdbfe;
  --color-primary-300: #93c5fd;
  --color-primary-400: #60a5fa;
  --color-primary-500: #3b82f6;  /* Base blue */
  --color-primary-600: #2563eb;
  --color-primary-700: #1d4ed8;
  --color-primary-800: #1e40af;
  --color-primary-900: #1e3a8a;

  /* ========================================
     COLOR PALETTE - SEMANTIC
     Feedback colors for success, warning, error, info
     ======================================== */
  --color-success-50: #d1fae5;
  --color-success-100: #a7f3d0;
  --color-success-500: #10b981;  /* Base green */
  --color-success-600: #059669;
  --color-success-700: #047857;

  --color-warning-50: #fef3c7;
  --color-warning-100: #fde68a;
  --color-warning-500: #f59e0b;  /* Base amber */
  --color-warning-600: #d97706;
  --color-warning-700: #b45309;

  --color-error-50: #fee2e2;
  --color-error-100: #fecaca;
  --color-error-500: #ef4444;    /* Base red */
  --color-error-600: #dc2626;
  --color-error-700: #b91c1c;

  --color-info-50: #dbeafe;
  --color-info-100: #bfdbfe;
  --color-info-500: #3b82f6;     /* Base blue (same as primary) */
  --color-info-600: #2563eb;
  --color-info-700: #1d4ed8;

  /* ========================================
     COLOR PALETTE - NEUTRALS
     Backgrounds, borders, text
     ======================================== */
  --color-gray-50: #f9fafb;      /* Light background */
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;     /* Borders (light) */
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;     /* Secondary text */
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;     /* Primary text (dark) */
  --color-gray-900: #111827;     /* Darkest text */

  /* ========================================
     TYPOGRAPHY - FONT FAMILIES
     ======================================== */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'Consolas', 'Monaco', 'Courier New', monospace;

  /* ========================================
     TYPOGRAPHY - FONT SIZES
     Minimum 16px for body text (WCAG 2.2)
     ======================================== */
  --text-xs: 0.75rem;      /* 12px - Use sparingly (labels, captions) */
  --text-sm: 0.875rem;     /* 14px - Small text (secondary info) */
  --text-base: 1rem;       /* 16px - Body text (MINIMUM) */
  --text-lg: 1.125rem;     /* 18px - Large body text */
  --text-xl: 1.25rem;      /* 20px - Small headings */
  --text-2xl: 1.5rem;      /* 24px - Headings */
  --text-3xl: 1.875rem;    /* 30px - Large headings */
  --text-4xl: 2.25rem;     /* 36px - Page titles */
  --text-5xl: 3rem;        /* 48px - Hero text */

  /* ========================================
     TYPOGRAPHY - LINE HEIGHTS
     ======================================== */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  --leading-loose: 2;

  /* ========================================
     TYPOGRAPHY - FONT WEIGHTS
     ======================================== */
  --font-thin: 100;
  --font-extralight: 200;
  --font-light: 300;
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  --font-extrabold: 800;
  --font-black: 900;

  /* ========================================
     SPACING SYSTEM - 8px Grid
     ======================================== */
  --space-0: 0;
  --space-px: 1px;
  --space-0-5: 0.125rem;   /* 2px */
  --space-1: 0.25rem;      /* 4px */
  --space-1-5: 0.375rem;   /* 6px */
  --space-2: 0.5rem;       /* 8px */
  --space-2-5: 0.625rem;   /* 10px */
  --space-3: 0.75rem;      /* 12px */
  --space-3-5: 0.875rem;   /* 14px */
  --space-4: 1rem;         /* 16px */
  --space-5: 1.25rem;      /* 20px */
  --space-6: 1.5rem;       /* 24px */
  --space-7: 1.75rem;      /* 28px */
  --space-8: 2rem;         /* 32px */
  --space-9: 2.25rem;      /* 36px */
  --space-10: 2.5rem;      /* 40px */
  --space-11: 2.75rem;     /* 44px */
  --space-12: 3rem;        /* 48px */
  --space-14: 3.5rem;      /* 56px */
  --space-16: 4rem;        /* 64px */
  --space-20: 5rem;        /* 80px */
  --space-24: 6rem;        /* 96px */

  /* ========================================
     BORDER RADIUS
     ======================================== */
  --radius-none: 0;
  --radius-sm: 0.125rem;   /* 2px */
  --radius-base: 0.25rem;  /* 4px */
  --radius-md: 0.375rem;   /* 6px */
  --radius-lg: 0.5rem;     /* 8px */
  --radius-xl: 0.75rem;    /* 12px */
  --radius-2xl: 1rem;      /* 16px */
  --radius-full: 9999px;   /* Circular */

  /* ========================================
     SHADOWS
     ======================================== */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);

  /* ========================================
     Z-INDEX SCALE
     ======================================== */
  --z-0: 0;
  --z-10: 10;
  --z-20: 20;
  --z-30: 30;
  --z-40: 40;
  --z-50: 50;
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-fixed: 1030;
  --z-modal-backdrop: 1040;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;

  /* ========================================
     TRANSITIONS
     ======================================== */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-out: cubic-bezier(0, 0, 0.2, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  /* ========================================
     BREAKPOINTS (for reference, use media queries)
     ======================================== */
  --breakpoint-sm: 640px;    /* Mobile */
  --breakpoint-md: 768px;    /* Tablet */
  --breakpoint-lg: 1024px;   /* Desktop */
  --breakpoint-xl: 1280px;   /* Large Desktop */
  --breakpoint-2xl: 1536px;  /* Extra Large Desktop */

  /* ========================================
     LAYOUT - BANNER
     ======================================== */
  --banner-height: 60px;
  --banner-z-index: 1000;
  --banner-background: var(--color-primary-600);
  --banner-text: white;

  --logo-width: 200px;
  --logo-height: 40px;

  --profile-size: 40px;
  --profile-margin-right: var(--space-3);

  /* ========================================
     LAYOUT - SIDEBAR
     ======================================== */
  --sidebar-width-collapsed: 80px;
  --sidebar-width-expanded: 240px;
  --sidebar-background: var(--color-gray-50);
  --sidebar-border: 1px solid var(--color-gray-200);
  --sidebar-z-index: 999;

  --nav-item-height: 48px;
  --nav-item-padding: var(--space-3);
  --nav-icon-size: 24px;
  --nav-text-size: var(--text-sm);
  --nav-text-color: var(--color-gray-800);
  --nav-hover-background: var(--color-gray-100);
  --nav-active-color: var(--color-primary-600);

  --sidebar-transition: all 300ms ease-in-out;

  /* ========================================
     LAYOUT - CONTENT
     ======================================== */
  --content-padding: var(--space-4);
  --content-max-width: none;

  /* ========================================
     LAYOUT - MOBILE
     ======================================== */
  --breakpoint-mobile: 640px;
  --breakpoint-tablet: 768px;
  --breakpoint-desktop: 1024px;
  --breakpoint-large: 1280px;

  /* ========================================
     LAYOUT - CONTEXT MENU
     ======================================== */
  --context-menu-background: var(--color-gray-900);
  --context-menu-text: white;
  --context-menu-hover: var(--color-gray-800);
  --context-menu-z-index: 2000;

  /* ========================================
     LIGHT MODE THEME (Default)
     ======================================== */
  --color-bg: var(--color-gray-50);
  --color-bg-secondary: #ffffff;
  --color-bg-tertiary: var(--color-gray-100);
  --color-text: var(--color-gray-900);
  --color-text-secondary: var(--color-gray-600);
  --color-text-tertiary: var(--color-gray-500);
  --color-border: var(--color-gray-200);
  --color-border-hover: var(--color-gray-300);
}

/* ========================================
   DARK MODE THEME
   Applied when html has "dark" class
   ======================================== */
html.dark {
  /* Dark mode color overrides */
  --color-bg: #0f172a;              /* Dark background (not pure black) */
  --color-bg-secondary: #1e293b;    /* Card backgrounds */
  --color-bg-tertiary: #334155;     /* Elevated surfaces */
  --color-text: #f1f5f9;            /* Light text */
  --color-text-secondary: #cbd5e1;  /* Secondary text */
  --color-text-tertiary: #94a3b8;   /* Tertiary text */
  --color-border: #334155;          /* Borders */
  --color-border-hover: #475569;    /* Border hover */

  /* Adjust semantic colors for dark mode visibility */
  --color-success-500: #34d399;
  --color-warning-500: #fbbf24;
  --color-error-500: #f87171;
  --color-info-500: #60a5fa;

  /* Adjust shadows for dark mode */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-base: 0 1px 3px 0 rgb(0 0 0 / 0.4), 0 1px 2px -1px rgb(0 0 0 / 0.4);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.4);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.5), 0 8px 10px -6px rgb(0 0 0 / 0.5);
}

/* ========================================
   BASE STYLES
   Apply consistent baseline styles
   ======================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px; /* Base font size - DO NOT change (WCAG 2.2) */
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ========================================
   UTILITY CLASSES
   Common reusable classes
   ======================================== */

/* Text utilities */
.text-primary { color: var(--color-primary-600); }
.text-success { color: var(--color-success-600); }
.text-warning { color: var(--color-warning-600); }
.text-error { color: var(--color-error-600); }
.text-secondary { color: var(--color-text-secondary); }
.text-tertiary { color: --color-text-tertiary); }

/* Background utilities */
.bg-primary { background-color: var(--color-primary-600); }
.bg-success { background-color: var(--color-success-600); }
.bg-warning { background-color: var(--color-warning-600); }
.bg-error { background-color: var(--color-error-600); }
.bg-secondary { background-color: var(--color-bg-secondary); }

/* Spacing utilities */
.p-2 { padding: var(--space-2); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.p-8 { padding: var(--space-8); }

.m-2 { margin: var(--space-2); }
.m-4 { margin: var(--space-4); }
.m-6 { margin: var(--space-6); }
.m-8 { margin: var(--space-8); }

/* Border radius utilities */
.rounded-sm { border-radius: var(--radius-sm); }
.rounded { border-radius: var(--radius-base); }
.rounded-md { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

/* Shadow utilities */
.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow { box-shadow: var(--shadow-base); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

/* Transition utilities */
.transition { transition: all var(--transition-base); }
.transition-fast { transition: all var(--transition-fast); }
.transition-slow { transition: all var(--transition-slow); }

/* ========================================
   ACCESSIBILITY UTILITIES
   ======================================== */

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Focus visible (keyboard navigation) */
*:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Respect user's 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;
  }
}

/* ========================================
   PRINT STYLES
   ======================================== */
@media print {
  *,
  *::before,
  *::after {
    background: transparent !important;
    color: #000 !important;
    box-shadow: none !important;
    text-shadow: none !important;
  }

  a,
  a:visited {
    text-decoration: underline;
  }

  a[href]::after {
    content: " (" attr(href) ")";
  }

  pre {
    white-space: pre-wrap !important;
  }

  pre,
  blockquote {
    border: 1px solid #999;
    page-break-inside: avoid;
  }

  thead {
    display: table-header-group;
  }

  tr,
  img {
    page-break-inside: avoid;
  }

  p,
  h2,
  h3 {
    orphans: 3;
    widows: 3;
  }

  h2,
  h3 {
    page-break-after: avoid;
  }
}

/* ========================================
   ACCESSIBILITY - FOCUS INDICATORS (WCAG 2.4.7)
   Enhanced focus states for keyboard navigation
   ======================================== */

/* Global focus styles for all interactive elements */
:focus-visible {
  outline: 3px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Buttons */
button:focus-visible {
  outline: 3px solid var(--color-primary-500);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Links */
a:focus-visible {
  outline: 3px solid var(--color-primary-500);
  outline-offset: 2px;
  border-radius: 2px;
}

/* Form inputs (text, password, email, etc.) */
input:not([type="checkbox"]):not([type="radio"]):focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 3px solid var(--color-primary-500);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

/* Checkboxes and radio buttons */
input[type="checkbox"]:focus-visible,
input[type="radio"]:focus-visible {
  outline: 3px solid var(--color-primary-500);
  outline-offset: 3px;
}

/* Dark mode focus styles */
.dark :focus-visible {
  outline-color: var(--color-primary-400);
}

.dark button:focus-visible,
.dark input:not([type="checkbox"]):not([type="radio"]):focus-visible,
.dark textarea:focus-visible,
.dark select:focus-visible {
  box-shadow: 0 0 0 4px rgba(96, 165, 250, 0.2);
}

/* Skip to main content link (accessibility best practice) */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-primary-600);
  color: white;
  padding: 8px;
  text-decoration: none;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

/* ========================================
   EMPTY STATES
   Improved empty state UI with icons and CTAs
   ======================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 2rem;
  text-align: center;
  min-height: 300px;
}

.empty-state-icon {
  width: 64px;
  height: 64px;
  margin-bottom: 1rem;
  opacity: 0.5;
  color: var(--color-gray-400);
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-gray-900);
  margin-bottom: 0.5rem;
}

.dark .empty-state-title {
  color: var(--color-gray-100);
}

.empty-state-description {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  margin-bottom: 1.5rem;
  max-width: 400px;
}

.dark .empty-state-description {
  color: var(--color-gray-400);
}

.empty-state-action {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  background-color: var(--color-primary-600);
  color: white;
  border-radius: 0.5rem;
  text-decoration: none;
  font-weight: 500;
  font-size: var(--text-sm);
  transition: background-color 0.2s;
}

.empty-state-action:hover {
  background-color: var(--color-primary-700);
}

.dark .empty-state-action {
  background-color: var(--color-primary-600);
}

.dark .empty-state-action:hover {
  background-color: var(--color-primary-700);
}

.empty-state-action:focus-visible {
  outline: 3px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* ========================================
   TOOLTIPS
   Hover text for truncated content in tables
   ======================================== */

.truncate-with-tooltip {
  position: relative;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: help;
}

.truncate-with-tooltip::after {
  content: attr(data-tooltip);
  position: absolute;
  bottom: 120%;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.5rem 0.75rem;
  background-color: var(--color-gray-800);
  color: white;
  border-radius: 0.375rem;
  font-size: var(--text-xs);
  white-space: normal;
  word-wrap: break-word;
  max-width: 250px;
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
  box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.truncate-with-tooltip::before {
  content: '';
  position: absolute;
  bottom: 108%;
  left: 50%;
  transform: translateX(-50%);
  border: 5px solid transparent;
  border-top-color: var(--color-gray-800);
  z-index: 10;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}

.dark .truncate-with-tooltip::after {
  background-color: var(--color-gray-700);
}

.dark .truncate-with-tooltip::before {
  border-top-color: var(--color-gray-700);
}

.truncate-with-tooltip:hover::after,
.truncate-with-tooltip:hover::before {
  opacity: 1;
}

/* Responsive tooltip positioning */
@media (max-width: 768px) {
  .truncate-with-tooltip::after {
    bottom: auto;
    top: 120%;
    max-width: 200px;
    font-size: var(--text-xs);
  }

  .truncate-with-tooltip::before {
    bottom: auto;
    top: 108%;
    border: 5px solid transparent;
    border-bottom-color: var(--color-gray-800);
    border-top-color: transparent;
  }

  .dark .truncate-with-tooltip::before {
    border-bottom-color: var(--color-gray-700);
  }
}

/* ========================================
   MULTI-SELECT FILTER COMPONENTS
   Phase 2.2 UI Components
   ======================================== */

/* Filter Group Container */
.filter-group {
  position: relative;
  display: inline-block;
}

/* Toggle Button */
.filter-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1-5) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  min-width: 44px;
}

.filter-dropdown-toggle:hover {
  border-color: var(--color-border-hover);
  background: var(--color-bg-tertiary);
}

.filter-dropdown-toggle:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  border-color: var(--color-primary-500);
}

.filter-dropdown-toggle[aria-expanded="true"] {
  border-color: var(--color-primary-500);
  background: var(--color-primary-50);
}

.filter-dropdown-toggle[aria-expanded="true"] .filter-chevron {
  transform: rotate(180deg);
}

.dark .filter-dropdown-toggle {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
  color: var(--color-text);
}

.dark .filter-dropdown-toggle:hover {
  background: var(--color-bg-tertiary);
}

.dark .filter-dropdown-toggle[aria-expanded="true"] {
  background: rgba(37, 99, 235, 0.2);
}

/* Filter Badge */
.filter-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 20px;
  height: 20px;
  padding: 0 var(--space-1-5);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  color: white;
  background: var(--color-primary-600);
  border-radius: var(--radius-full);
}

.filter-badge[hidden] {
  display: none;
}

/* Chevron Icon */
.filter-chevron {
  transition: transform var(--transition-fast);
}

/* Dropdown Content */
.filter-dropdown-content {
  position: absolute;
  top: calc(100% + var(--space-1));
  left: 0;
  z-index: var(--z-dropdown);
  min-width: 240px;
  max-width: 320px;
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2);
  max-height: 400px;
  overflow-y: auto;
}

.filter-dropdown-content[hidden] {
  display: none;
}

.dark .filter-dropdown-content {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
}

/* Checkbox List */
.checkbox-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding: var(--space-1) 0;
}

/* Checkbox Item */
.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background var(--transition-fast);
  min-height: 44px;
  position: relative;
}

.checkbox-item:hover {
  background: var(--color-bg-tertiary);
}

.checkbox-item:has(input:focus-visible) {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Native Checkbox (hidden, replaced by custom) */
.checkbox-item input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

/* Custom Checkbox */
.checkbox-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg-secondary);
  transition: all var(--transition-fast);
}

.checkbox-item input[type="checkbox"]:checked + .checkbox-custom {
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.checkbox-item input[type="checkbox"]:checked + .checkbox-custom::after {
  content: '';
  display: block;
  width: 5px;
  height: 10px;
  border: solid white;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
  margin-top: -2px;
}

.checkbox-item input[type="checkbox"]:focus-visible + .checkbox-custom {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Checkbox Label */
.checkbox-label {
  flex: 1;
  font-weight: var(--font-normal);
}

/* Facet Count */
.facet-count {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 32px;
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
  border-radius: var(--radius-full);
}

/* Dropdown Footer */
.filter-dropdown-footer {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-2);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-2);
}

.filter-clear-btn,
.filter-apply-btn {
  flex: 1;
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
}

.filter-clear-btn {
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
}

.filter-clear-btn:hover {
  background: var(--color-bg-tertiary);
}

.filter-apply-btn {
  color: white;
  background: var(--color-primary-600);
  border: 1px solid var(--color-primary-600);
}

.filter-apply-btn:hover {
  background: var(--color-primary-700);
}

.filter-clear-btn:focus-visible,
.filter-apply-btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* ========================================
   DATE RANGE PICKER COMPONENTS
   Phase 2.2 UI Components
   ======================================== */

/* Date Filter Toolbar */
.date-filter-toolbar {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  flex-wrap: wrap;
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
}

/* Date Filter Section */
.date-filter-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  border: none;
  padding: 0;
  margin: 0;
}

/* Legend */
.date-filter-legend {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-1);
}

/* Date Range Container */
.date-range {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: nowrap;
}

/* Date Input Group */
.date-input-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Date Label */
.date-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
  white-space: nowrap;
}

/* Date Input */
.date-input {
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-height: 44px;
  min-width: 150px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.date-input:hover {
  border-color: var(--color-border-hover);
}

.date-input:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  border-color: var(--color-primary-500);
}

.date-input:invalid {
  border-color: var(--color-error-500);
}

.dark .date-input {
  background: var(--color-bg-secondary);
  border-color: var(--color-border);
  color: var(--color-text);
  color-scheme: dark;
}

/* Date Separator */
.date-separator {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  font-weight: var(--font-bold);
}

/* Date Clear Button */
.date-clear-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2);
  color: var(--color-text-secondary);
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.date-clear-btn:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
}

.date-clear-btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Date Error Message */
.date-error-message {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-error-700);
  background: var(--color-error-50);
  border: 1px solid var(--color-error-500);
  border-radius: var(--radius-md);
  margin-top: var(--space-1);
}

.date-error-message[hidden] {
  display: none;
}

.dark .date-error-message {
  color: var(--color-error-100);
  background: rgba(239, 68, 68, 0.1);
  border-color: var(--color-error-500);
}

.date-error-message::before {
  content: '⚠';
  font-size: var(--text-base);
}

/* Date Preset Buttons */
.date-preset-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1-5) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-primary-700);
  background: var(--color-primary-100);
  border: 1px solid var(--color-primary-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 32px;
  white-space: nowrap;
}

.date-preset-btn:hover {
  background: var(--color-primary-200);
  border-color: var(--color-primary-400);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.date-preset-btn:active {
  transform: translateY(0);
  background: var(--color-primary-600);
  color: white;
}

.date-preset-btn:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

.dark .date-preset-btn {
  color: var(--color-primary-300);
  background: rgba(37, 99, 235, 0.2);
  border-color: rgba(37, 99, 235, 0.4);
}

.dark .date-preset-btn:hover {
  background: rgba(37, 99, 235, 0.3);
  border-color: rgba(37, 99, 235, 0.6);
}

.dark .date-preset-btn:active {
  background: var(--color-primary-600);
  color: white;
}

/* Responsive Design */
@media (max-width: 768px) {
  .date-filter-toolbar {
    flex-direction: column;
    gap: var(--space-3);
  }

  .date-range {
    flex-wrap: wrap;
  }

  .date-input {
    min-width: 120px;
  }
}

/* ========================================
   FILTER PRESETS MODAL COMPONENT
   Phase 2.2 UI Components
   ======================================== */

/* Modal Container */
#preset-modal {
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: var(--space-4);
}

#preset-modal[hidden] {
  display: none;
}

/* Modal Overlay */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  z-index: 1;
}

/* Modal Container */
.modal-container {
  position: relative;
  z-index: 2;
  background: var(--color-bg-secondary);
  border-radius: var(--radius-xl);
  max-width: 800px;
  width: 100%;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-2xl);
}

/* Modal Header */
.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h2 {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0;
}

.modal-close {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  padding: var(--space-2);
  color: var(--color-text-secondary);
  background: transparent;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  font-size: var(--text-2xl);
  line-height: 1;
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-bg-tertiary);
  color: var(--color-text);
}

.modal-close:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Modal Body */
.modal-body {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
}

/* Presets Section */
.presets-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.presets-section h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-8) var(--space-4);
  color: var(--color-text-secondary);
  font-size: var(--text-base);
}

/* Presets Table */
.presets-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.presets-table thead {
  background: var(--color-bg-tertiary);
}

.presets-table th {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
}

.presets-table td {
  padding: var(--space-3) var(--space-4);
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.presets-table tbody tr:last-child td {
  border-bottom: none;
}

.presets-table tbody tr:hover {
  background: var(--color-bg-tertiary);
}

/* Preset Actions */
.presets-table td:last-child {
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
}

.btn-load,
.btn-delete {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-1-5) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 32px;
  border: 1px solid transparent;
}

.btn-load {
  color: white;
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.btn-load:hover {
  background: var(--color-primary-700);
}

.btn-delete {
  color: var(--color-error-700);
  background: var(--color-error-50);
  border-color: var(--color-error-500);
}

.btn-delete:hover {
  background: var(--color-error-100);
}

.btn-load:focus-visible,
.btn-delete:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Save Preset Section */
.save-preset-section {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.save-preset-section h3 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-text);
  margin: 0;
}

/* Form Styles */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.form-group label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text);
}

.form-group input[type="text"] {
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  min-height: 44px;
  transition: all var(--transition-fast);
}

.form-group input[type="text"]:hover {
  border-color: var(--color-border-hover);
}

.form-group input[type="text"]:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
  border-color: var(--color-primary-500);
}

/* Checkbox Group */
.checkbox-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) 0;
}

.checkbox-group input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.checkbox-group label {
  font-size: var(--text-sm);
  color: var(--color-text);
  cursor: pointer;
}

/* Button Styles */
.btn-primary,
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  border: 1px solid transparent;
}

.btn-primary {
  color: white;
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.btn-primary:hover {
  background: var(--color-primary-700);
}

.btn-secondary {
  color: var(--color-text);
  background: transparent;
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg-tertiary);
}

.btn-primary:focus-visible,
.btn-secondary:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Modal Footer */
.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--space-2);
  padding: var(--space-5) var(--space-6);
  border-top: 1px solid var(--color-border);
}

/* Responsive */
@media (max-width: 768px) {
  .modal-container {
    width: 95%;
    max-height: 90vh;
  }

  .modal-header,
  .modal-body,
  .modal-footer {
    padding: var(--space-4);
  }

  .presets-table th,
  .presets-table td {
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-xs);
  }
}

/* ========================================
   TOAST NOTIFICATIONS
   Global toast for success/error messages
   ======================================== */

.toast {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-tooltip);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  max-width: 400px;
  font-size: var(--text-sm);
  color: var(--color-text);
  animation: slideInUp 0.3s ease-out;
  display: none;
}

@keyframes slideInUp {
  from {
    transform: translateY(100px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.toast-success {
  border-left: 4px solid var(--color-success-500);
  background: var(--color-success-50);
  color: var(--color-success-700);
}

.toast-error {
  border-left: 4px solid var(--color-error-500);
  background: var(--color-error-50);
  color: var(--color-error-700);
}

.toast-info {
  border-left: 4px solid var(--color-info-500);
  background: var(--color-info-50);
  color: var(--color-info-700);
}

.dark .toast {
  background: var(--color-bg-tertiary);
}

.dark .toast-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success-100);
}

.dark .toast-error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-error-100);
}

.dark .toast-info {
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-info-100);
}

@media (max-width: 768px) {
  .toast {
    bottom: var(--space-4);
    right: var(--space-4);
    left: var(--space-4);
    max-width: none;
  }
}

/* ========================================
   DRAG-DROP VISUAL FEEDBACK COMPONENT
   Phase 2.3 Sprint 1 - Media Library Enhancements
   ======================================== */

/* Ghost image during drag */
.drag-ghost {
  position: fixed;
  pointer-events: none;
  opacity: 0.7;
  z-index: 10000;
  border: 2px dashed var(--color-primary-500);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transition: transform 0.1s ease-out;
}

/* Drop zone highlighting */
.drop-zone-active {
  background-color: var(--color-primary-100) !important;
  border: 2px solid var(--color-primary-500) !important;
  border-radius: var(--radius-lg);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.1);
  transition: all 200ms ease;
}

.dark .drop-zone-active {
  background-color: rgba(37, 99, 235, 0.2) !important;
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.2);
}

/* Item being dragged */
.media-item.dragging {
  opacity: 0.5;
  transform: scale(0.95);
  transition: opacity 150ms, transform 150ms;
}

/* Item movement animation */
@keyframes itemMove {
  0% {
    transform: translate(0, 0);
    opacity: 1;
  }
  100% {
    transform: translate(var(--move-x), var(--move-y));
    opacity: 1;
  }
}

.item-moving {
  animation: itemMove 300ms ease-out forwards;
}

/* Bounce effect on successful drop */
@keyframes dropBounce {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.item-dropped {
  animation: dropBounce 200ms ease-out;
}

/* Shake effect on failed drop */
@keyframes dropError {
  0%, 100% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-10px);
  }
  75% {
    transform: translateX(10px);
  }
}

.item-drop-error {
  animation: dropError 400ms ease-out;
}

/* ========================================
   BULK SELECTION COMPONENT
   Phase 2.3 Sprint 1 - Media Library Enhancements
   ======================================== */

/* Checkbox on grid items */
.bulk-select-checkbox {
  position: absolute;
  top: 8px;
  left: 8px;
  width: 44px;
  height: 44px;
  cursor: pointer;
  accent-color: var(--color-primary-600);
  z-index: 100;
  opacity: 0;
  transition: opacity 150ms ease;
}

.media-item:hover .bulk-select-checkbox {
  opacity: 1;
}

.bulk-select-checkbox:checked {
  opacity: 1;
}

/* Item selected state */
.media-item.bulk-selected {
  background-color: var(--color-primary-100);
  border: 2px solid var(--color-primary-600) !important;
  border-radius: var(--radius-lg);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.2);
}

.dark .media-item.bulk-selected {
  background-color: rgba(37, 99, 235, 0.2);
  box-shadow: 0 0 0 2px rgba(37, 99, 235, 0.3);
}

/* Bulk action toolbar */
.bulk-action-toolbar {
  position: sticky;
  bottom: 0;
  background: var(--color-bg-secondary);
  padding: var(--space-4);
  border-top: 1px solid var(--color-border);
  display: flex;
  gap: var(--space-2);
  align-items: center;
  justify-content: space-between;
  box-shadow: 0 -4px 6px rgba(0, 0, 0, 0.1);
  z-index: var(--z-sticky);
}

.bulk-action-toolbar.hidden {
  display: none;
}

.bulk-selection-count {
  font-weight: var(--font-semibold);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
}

.bulk-action-buttons {
  display: flex;
  gap: var(--space-2);
  align-items: center;
}

.bulk-action-buttons button {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1-5);
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 44px;
  min-width: 44px;
  border: 1px solid transparent;
}

.bulk-action-buttons button:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.bulk-action-buttons button:active {
  transform: translateY(0);
}

.bulk-action-buttons button.btn-tag {
  background: var(--color-primary-600);
  color: white;
}

.bulk-action-buttons button.btn-tag:hover {
  background: var(--color-primary-700);
}

.bulk-action-buttons button.btn-move {
  background: var(--color-info-600);
  color: white;
}

.bulk-action-buttons button.btn-move:hover {
  background: var(--color-info-700);
}

.bulk-action-buttons button.btn-delete {
  background: var(--color-error-600);
  color: white;
}

.bulk-action-buttons button.btn-delete:hover {
  background: var(--color-error-700);
}

.bulk-action-buttons button:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Select-all checkbox in header */
.select-all-checkbox {
  width: 20px;
  height: 20px;
  cursor: pointer;
  accent-color: var(--color-primary-600);
}

/* ========================================
   QUICK FILTER CHIPS COMPONENT
   Phase 2.2 UI Components
   ======================================== */

/* Quick Filters Bar */
.quick-filters-bar {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-2) var(--space-4);
  background: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

/* Quick Filters Label */
.quick-filters-label {
  display: flex;
  align-items: center;
  gap: var(--space-1-5);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-text-secondary);
  white-space: nowrap;
}

/* Chips Container */
.quick-filters-chips {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
  flex: 1;
}

/* Filter Chip */
.filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1-5);
  padding: var(--space-1-5) var(--space-3);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary-700);
  background: var(--color-primary-100);
  border: 1px solid var(--color-primary-300);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  min-height: 32px;
  white-space: nowrap;
}

.filter-chip:hover {
  background: var(--color-primary-200);
  border-color: var(--color-primary-400);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.filter-chip:active {
  transform: translateY(0);
}

.filter-chip:focus-visible {
  outline: 2px solid var(--color-primary-500);
  outline-offset: 2px;
}

/* Active Chip (when filter is applied) */
.filter-chip[aria-pressed="true"] {
  color: white;
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.filter-chip[aria-pressed="true"]:hover {
  background: var(--color-primary-700);
  border-color: var(--color-primary-700);
}

/* Reset Chip (different color) */
.filter-chip-reset {
  color: var(--color-text-secondary);
  background: var(--color-bg-tertiary);
  border-color: var(--color-border);
}

.filter-chip-reset:hover {
  color: var(--color-text);
  background: var(--color-gray-200);
  border-color: var(--color-gray-400);
}

/* Dark Mode */
.dark .filter-chip {
  color: var(--color-primary-300);
  background: rgba(37, 99, 235, 0.2);
  border-color: rgba(37, 99, 235, 0.4);
}

.dark .filter-chip:hover {
  background: rgba(37, 99, 235, 0.3);
  border-color: rgba(37, 99, 235, 0.6);
}

.dark .filter-chip[aria-pressed="true"] {
  color: white;
  background: var(--color-primary-600);
  border-color: var(--color-primary-600);
}

.dark .filter-chip-reset {
  color: var(--color-text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--color-border);
}

.dark .filter-chip-reset:hover {
  background: rgba(255, 255, 255, 0.1);
}

/* Responsive Design */
@media (max-width: 768px) {
  .quick-filters-bar {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-2);
  }

  .quick-filters-chips {
    width: 100%;
  }

  .filter-chip {
    font-size: var(--text-xs);
    padding: var(--space-1) var(--space-2);
  }
}