/**
 * Brand Design Tokens
 *
 * Comprehensive CSS custom properties for all MCS brands.
 * Use these tokens to ensure consistent styling across brands.
 *
 * Usage:
 *   1. Add data-brand="mcs|minute7|hour|lmntl" to a container element
 *   2. Use var(--brand-*) properties inside that container
 *   3. Components will automatically adopt brand styling
 *
 * @see /docs/brand/COMPONENT-LIBRARY.md for full documentation
 */

/* ==========================================================================
   BASE BRAND: Mission Critical SaaS (Default)
   ========================================================================== */

:root,
[data-brand="mcs"] {
  /* Primary Colors */
  --brand-primary: #1E40AF;
  --brand-primary-light: #3B82F6;
  --brand-primary-dark: #1E3A8A;
  --brand-primary-50: #EFF6FF;
  --brand-primary-100: #DBEAFE;
  --brand-primary-200: #BFDBFE;
  --brand-primary-500: #3B82F6;
  --brand-primary-600: #2563EB;
  --brand-primary-700: #1D4ED8;
  --brand-primary-800: #1E40AF;
  --brand-primary-900: #1E3A8A;

  /* Secondary/Accent */
  --brand-accent: #3B82F6;
  --brand-accent-light: #60A5FA;

  /* Semantic Colors */
  --brand-success: #059669;
  --brand-success-light: #D1FAE5;
  --brand-warning: #D97706;
  --brand-warning-light: #FEF3C7;
  --brand-error: #DC2626;
  --brand-error-light: #FEE2E2;
  --brand-info: #0284C7;
  --brand-info-light: #E0F2FE;

  /* Neutrals (Cool Gray with blue tint) */
  --brand-neutral-50: #F8FAFC;
  --brand-neutral-100: #F1F5F9;
  --brand-neutral-200: #E2E8F0;
  --brand-neutral-300: #CBD5E1;
  --brand-neutral-400: #94A3B8;
  --brand-neutral-500: #64748B;
  --brand-neutral-600: #475569;
  --brand-neutral-700: #334155;
  --brand-neutral-800: #1E293B;
  --brand-neutral-900: #0F172A;

  /* Typography */
  --brand-font-heading: 'Geist Sans', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --brand-font-body: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --brand-font-mono: ui-monospace, SFMono-Regular, 'SF Mono', Menlo, Consolas, monospace;

  /* Font Sizes (rem based) */
  --brand-text-xs: 0.75rem;
  --brand-text-sm: 0.875rem;
  --brand-text-base: 1rem;
  --brand-text-lg: 1.125rem;
  --brand-text-xl: 1.25rem;
  --brand-text-2xl: 1.5rem;
  --brand-text-3xl: 1.875rem;
  --brand-text-4xl: 2.25rem;

  /* Font Weights */
  --brand-font-normal: 400;
  --brand-font-medium: 500;
  --brand-font-semibold: 600;
  --brand-font-bold: 700;

  /* Line Heights */
  --brand-leading-tight: 1.25;
  --brand-leading-normal: 1.5;
  --brand-leading-relaxed: 1.625;

  /* Spacing Scale */
  --brand-space-1: 0.25rem;
  --brand-space-2: 0.5rem;
  --brand-space-3: 0.75rem;
  --brand-space-4: 1rem;
  --brand-space-5: 1.25rem;
  --brand-space-6: 1.5rem;
  --brand-space-8: 2rem;
  --brand-space-10: 2.5rem;
  --brand-space-12: 3rem;
  --brand-space-16: 4rem;

  /* Border Radius */
  --brand-radius-sm: 0.25rem;
  --brand-radius-md: 0.375rem;
  --brand-radius-lg: 0.5rem;
  --brand-radius-xl: 0.75rem;
  --brand-radius-2xl: 1rem;
  --brand-radius-full: 9999px;

  /* Shadows */
  --brand-shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --brand-shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --brand-shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --brand-shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);

  /* Transitions */
  --brand-transition-fast: 150ms ease;
  --brand-transition-normal: 200ms ease;
  --brand-transition-slow: 300ms ease;

  /* Focus Ring */
  --brand-focus-ring: 0 0 0 3px var(--brand-primary-200);

  /* Table Specific */
  --brand-table-stripe: var(--brand-neutral-50);
  --brand-table-hover: var(--brand-primary-50);
  --brand-table-border: var(--brand-neutral-200);
  --brand-table-header-bg: var(--brand-neutral-100);
}

/* ==========================================================================
   MINUTE7 BRAND
   ========================================================================== */

[data-brand="minute7"] {
  /* Primary Colors - Emerald/Green */
  --brand-primary: #059669;
  --brand-primary-light: #10B981;
  --brand-primary-dark: #047857;
  --brand-primary-50: #ECFDF5;
  --brand-primary-100: #D1FAE5;
  --brand-primary-200: #A7F3D0;
  --brand-primary-500: #10B981;
  --brand-primary-600: #059669;
  --brand-primary-700: #047857;
  --brand-primary-800: #065F46;
  --brand-primary-900: #064E3B;

  /* Secondary/Accent */
  --brand-accent: #22C55E;
  --brand-accent-light: #4ADE80;

  /* Semantic Colors */
  --brand-success: #059669;
  --brand-success-light: #D1FAE5;
  --brand-warning: #D97706;
  --brand-warning-light: #FEF3C7;
  --brand-error: #DC2626;
  --brand-error-light: #FEE2E2;
  --brand-info: #0284C7;
  --brand-info-light: #E0F2FE;

  /* Focus Ring */
  --brand-focus-ring: 0 0 0 3px var(--brand-primary-200);

  /* Table Specific */
  --brand-table-stripe: var(--brand-primary-50);
  --brand-table-hover: #D1FAE5;
}

/* ==========================================================================
   HOUR TIMESHEET BRAND
   ========================================================================== */

[data-brand="hour"] {
  /* Primary Colors - Orange */
  --brand-primary: #EA580C;
  --brand-primary-light: #F97316;
  --brand-primary-dark: #C2410C;
  --brand-primary-50: #FFF7ED;
  --brand-primary-100: #FFEDD5;
  --brand-primary-200: #FED7AA;
  --brand-primary-500: #F97316;
  --brand-primary-600: #EA580C;
  --brand-primary-700: #C2410C;
  --brand-primary-800: #9A3412;
  --brand-primary-900: #7C2D12;

  /* Secondary/Accent */
  --brand-accent: #F97316;
  --brand-accent-light: #FB923C;

  /* Semantic Colors - Adjusted for brand harmony */
  --brand-success: #059669;
  --brand-success-light: #D1FAE5;
  --brand-warning: #EA580C;
  --brand-warning-light: #FFEDD5;
  --brand-error: #DC2626;
  --brand-error-light: #FEE2E2;
  --brand-info: #0284C7;
  --brand-info-light: #E0F2FE;

  /* Focus Ring */
  --brand-focus-ring: 0 0 0 3px var(--brand-primary-200);

  /* Table Specific */
  --brand-table-stripe: var(--brand-primary-50);
  --brand-table-hover: #FFEDD5;
}

/* ==========================================================================
   LMNTL.AI BRAND
   ========================================================================== */

[data-brand="lmntl"] {
  /* Primary Colors - Purple */
  --brand-primary: #7C3AED;
  --brand-primary-light: #8B5CF6;
  --brand-primary-dark: #6D28D9;
  --brand-primary-50: #F5F3FF;
  --brand-primary-100: #EDE9FE;
  --brand-primary-200: #DDD6FE;
  --brand-primary-500: #8B5CF6;
  --brand-primary-600: #7C3AED;
  --brand-primary-700: #6D28D9;
  --brand-primary-800: #5B21B6;
  --brand-primary-900: #4C1D95;

  /* Secondary/Accent */
  --brand-accent: #A78BFA;
  --brand-accent-light: #C4B5FD;

  /* Semantic Colors */
  --brand-success: #059669;
  --brand-success-light: #D1FAE5;
  --brand-warning: #D97706;
  --brand-warning-light: #FEF3C7;
  --brand-error: #DC2626;
  --brand-error-light: #FEE2E2;
  --brand-info: #7C3AED;
  --brand-info-light: #EDE9FE;

  /* Focus Ring */
  --brand-focus-ring: 0 0 0 3px var(--brand-primary-200);

  /* Table Specific */
  --brand-table-stripe: var(--brand-primary-50);
  --brand-table-hover: #EDE9FE;
}

/* ==========================================================================
   COMPONENT BASE STYLES
   These provide consistent component styling using brand tokens
   ========================================================================== */

/* Buttons */
.brand-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--brand-space-2);
  padding: var(--brand-space-2) var(--brand-space-4);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  font-weight: var(--brand-font-medium);
  line-height: var(--brand-leading-normal);
  border-radius: var(--brand-radius-lg);
  transition: all var(--brand-transition-normal);
  cursor: pointer;
  border: none;
}

.brand-btn:focus-visible {
  outline: none;
  box-shadow: var(--brand-focus-ring);
}

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

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

.brand-btn-secondary {
  background-color: var(--brand-primary-100);
  color: var(--brand-primary-700);
}

.brand-btn-secondary:hover {
  background-color: var(--brand-primary-200);
}

.brand-btn-outline {
  background-color: transparent;
  color: var(--brand-primary);
  border: 1px solid var(--brand-primary);
}

.brand-btn-outline:hover {
  background-color: var(--brand-primary-50);
}

.brand-btn-ghost {
  background-color: transparent;
  color: var(--brand-primary);
}

.brand-btn-ghost:hover {
  background-color: var(--brand-primary-50);
}

.brand-btn-sm {
  padding: var(--brand-space-1) var(--brand-space-3);
  font-size: var(--brand-text-xs);
}

.brand-btn-lg {
  padding: var(--brand-space-3) var(--brand-space-6);
  font-size: var(--brand-text-base);
}

/* Data Tables */
.brand-table {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
}

.brand-table th {
  background-color: var(--brand-table-header-bg);
  color: var(--brand-neutral-700);
  font-weight: var(--brand-font-semibold);
  text-align: left;
  padding: var(--brand-space-3) var(--brand-space-4);
  border-bottom: 2px solid var(--brand-table-border);
}

.brand-table td {
  padding: var(--brand-space-3) var(--brand-space-4);
  border-bottom: 1px solid var(--brand-table-border);
  color: var(--brand-neutral-700);
}

.brand-table tbody tr:nth-child(even) {
  background-color: var(--brand-table-stripe);
}

.brand-table tbody tr:hover {
  background-color: var(--brand-table-hover);
}

.brand-table th.sortable {
  cursor: pointer;
  user-select: none;
}

.brand-table th.sortable:hover {
  background-color: var(--brand-neutral-200);
}

/* Form Inputs */
.brand-input {
  display: block;
  width: 100%;
  padding: var(--brand-space-2) var(--brand-space-3);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  line-height: var(--brand-leading-normal);
  color: var(--brand-neutral-900);
  background-color: white;
  border: 1px solid var(--brand-neutral-300);
  border-radius: var(--brand-radius-lg);
  transition: border-color var(--brand-transition-fast), box-shadow var(--brand-transition-fast);
}

.brand-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: var(--brand-focus-ring);
}

.brand-input::placeholder {
  color: var(--brand-neutral-400);
}

.brand-input:disabled {
  background-color: var(--brand-neutral-100);
  cursor: not-allowed;
}

.brand-input-error {
  border-color: var(--brand-error);
}

.brand-input-error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.2);
}

/* Labels */
.brand-label {
  display: block;
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  font-weight: var(--brand-font-medium);
  color: var(--brand-neutral-700);
  margin-bottom: var(--brand-space-1);
}

/* Select */
.brand-select {
  display: block;
  width: 100%;
  padding: var(--brand-space-2) var(--brand-space-8) var(--brand-space-2) var(--brand-space-3);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-900);
  background-color: white;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='M6 8l4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--brand-space-2) center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  border: 1px solid var(--brand-neutral-300);
  border-radius: var(--brand-radius-lg);
  appearance: none;
  cursor: pointer;
}

.brand-select:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: var(--brand-focus-ring);
}

/* Checkbox */
.brand-checkbox {
  width: 1rem;
  height: 1rem;
  accent-color: var(--brand-primary);
  cursor: pointer;
}

.brand-checkbox-label {
  display: inline-flex;
  align-items: center;
  gap: var(--brand-space-2);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-700);
  cursor: pointer;
}

/* Cards */
.brand-card {
  background-color: white;
  border: 1px solid var(--brand-neutral-200);
  border-radius: var(--brand-radius-xl);
  padding: var(--brand-space-6);
  box-shadow: var(--brand-shadow-sm);
}

.brand-card-hover:hover {
  box-shadow: var(--brand-shadow-md);
  border-color: var(--brand-primary-200);
}

.brand-card-header {
  margin-bottom: var(--brand-space-4);
}

.brand-card-title {
  font-family: var(--brand-font-heading);
  font-size: var(--brand-text-lg);
  font-weight: var(--brand-font-semibold);
  color: var(--brand-neutral-900);
}

.brand-card-description {
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-600);
  margin-top: var(--brand-space-1);
}

/* Alerts */
.brand-alert {
  display: flex;
  gap: var(--brand-space-3);
  padding: var(--brand-space-4);
  border-radius: var(--brand-radius-lg);
  font-size: var(--brand-text-sm);
}

.brand-alert .font-medium,
.brand-alert-title {
  font-weight: var(--brand-font-semibold);
  font-size: var(--brand-text-base);
}

.brand-alert-info {
  background-color: var(--brand-info-light);
  color: var(--brand-info);
  border: 1px solid currentColor;
}

.brand-alert-success {
  background-color: var(--brand-success-light);
  color: var(--brand-success);
  border: 1px solid currentColor;
}

.brand-alert-warning {
  background-color: var(--brand-warning-light);
  color: var(--brand-warning);
  border: 1px solid currentColor;
}

.brand-alert-error {
  background-color: var(--brand-error-light);
  color: var(--brand-error);
  border: 1px solid currentColor;
}

/* Badges */
.brand-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--brand-space-1) var(--brand-space-2);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-xs);
  font-weight: var(--brand-font-medium);
  border-radius: var(--brand-radius-full);
}

.brand-badge-primary {
  background-color: var(--brand-primary-100);
  color: var(--brand-primary-700);
}

.brand-badge-success {
  background-color: var(--brand-success-light);
  color: var(--brand-success);
}

.brand-badge-warning {
  background-color: var(--brand-warning-light);
  color: var(--brand-warning);
}

.brand-badge-error {
  background-color: var(--brand-error-light);
  color: var(--brand-error);
}

.brand-badge-info {
  background-color: var(--brand-info-light);
  color: var(--brand-info);
}

/* Tabs / Navigation */
.brand-tabs {
  display: flex;
  gap: var(--brand-space-1);
  border-bottom: 1px solid var(--brand-neutral-200);
}

.brand-tab {
  padding: var(--brand-space-2) var(--brand-space-4);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  font-weight: var(--brand-font-medium);
  color: var(--brand-neutral-600);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--brand-transition-fast);
}

.brand-tab:hover {
  color: var(--brand-primary);
}

.brand-tab-active {
  color: var(--brand-primary);
  border-bottom-color: var(--brand-primary);
}

/* Progress Bar */
.brand-progress {
  width: 100%;
  height: 0.5rem;
  background-color: var(--brand-neutral-200);
  border-radius: var(--brand-radius-full);
  overflow: hidden;
}

.brand-progress-bar {
  height: 100%;
  background-color: var(--brand-primary);
  border-radius: var(--brand-radius-full);
  transition: width var(--brand-transition-slow);
}

/* Tooltips */
.brand-tooltip {
  position: relative;
}

.brand-tooltip-content {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  padding: var(--brand-space-2) var(--brand-space-3);
  background-color: var(--brand-neutral-900);
  color: white;
  font-size: var(--brand-text-xs);
  border-radius: var(--brand-radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: all var(--brand-transition-fast);
  margin-bottom: var(--brand-space-2);
}

.brand-tooltip:hover .brand-tooltip-content {
  opacity: 1;
  visibility: visible;
}

/* Modal */
.brand-modal-overlay {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--brand-space-4);
}

.brand-modal {
  background-color: white;
  border-radius: var(--brand-radius-xl);
  box-shadow: var(--brand-shadow-xl);
  max-width: 32rem;
  width: 100%;
  max-height: 90vh;
  overflow: auto;
}

.brand-modal-header {
  padding: var(--brand-space-4) var(--brand-space-6);
  border-bottom: 1px solid var(--brand-neutral-200);
}

.brand-modal-body {
  padding: var(--brand-space-6);
}

.brand-modal-footer {
  padding: var(--brand-space-4) var(--brand-space-6);
  border-top: 1px solid var(--brand-neutral-200);
  display: flex;
  justify-content: flex-end;
  gap: var(--brand-space-3);
}

/* Typography Helpers */
.brand-heading-1 {
  font-family: var(--brand-font-heading);
  font-size: var(--brand-text-4xl);
  font-weight: var(--brand-font-bold);
  line-height: var(--brand-leading-tight);
  color: var(--brand-neutral-900);
}

.brand-heading-2 {
  font-family: var(--brand-font-heading);
  font-size: var(--brand-text-3xl);
  font-weight: var(--brand-font-bold);
  line-height: var(--brand-leading-tight);
  color: var(--brand-neutral-900);
}

.brand-heading-3 {
  font-family: var(--brand-font-heading);
  font-size: var(--brand-text-2xl);
  font-weight: var(--brand-font-semibold);
  line-height: var(--brand-leading-tight);
  color: var(--brand-neutral-900);
}

.brand-heading-4 {
  font-family: var(--brand-font-heading);
  font-size: var(--brand-text-xl);
  font-weight: var(--brand-font-semibold);
  line-height: var(--brand-leading-tight);
  color: var(--brand-neutral-900);
}

.brand-text-body {
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-base);
  line-height: var(--brand-leading-relaxed);
  color: var(--brand-neutral-700);
}

.brand-text-small {
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  line-height: var(--brand-leading-normal);
  color: var(--brand-neutral-600);
}

.brand-text-muted {
  color: var(--brand-neutral-500);
}

.brand-text-primary {
  color: var(--brand-primary);
}

.brand-link {
  color: var(--brand-primary);
  text-decoration: none;
  transition: color var(--brand-transition-fast);
}

.brand-link:hover {
  color: var(--brand-primary-dark);
  text-decoration: underline;
}

/* ====================================
   FILTER SYSTEM COMPONENTS
   ==================================== */

/* Filter Bar Container */
.brand-filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--brand-space-3);
  padding: var(--brand-space-4);
  position: relative;
  z-index: 40;
  overflow: visible;
  background-color: white;
  border-bottom: 1px solid var(--brand-neutral-200);
}

/* Date Range Picker */
.brand-date-range {
  display: inline-flex;
  align-items: center;
  gap: var(--brand-space-2);
  padding: var(--brand-space-2) var(--brand-space-3);
  background-color: white;
  border: 1px solid var(--brand-neutral-300);
  border-radius: var(--brand-radius-lg);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-700);
  cursor: pointer;
}

.brand-date-range:hover {
  border-color: var(--brand-primary);
}

.brand-date-range-icon {
  width: 1rem;
  height: 1rem;
  color: var(--brand-neutral-500);
}

.brand-date-range-nav {
  display: inline-flex;
  align-items: center;
  padding: var(--brand-space-1);
  color: var(--brand-neutral-500);
  cursor: pointer;
  border-radius: var(--brand-radius-sm);
}

.brand-date-range-nav:hover {
  background-color: var(--brand-neutral-100);
  color: var(--brand-neutral-700);
}

/* Search Input with Icon */
.brand-search-input {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.brand-search-input input,
.brand-search-input .brand-input {
  padding-left: 2.5rem;
  min-width: 10rem;
}

.brand-search-input-icon {
  position: absolute;
  left: 0.75rem;
  width: 1rem;
  height: 1rem;
  color: var(--brand-neutral-400);
  pointer-events: none;
  z-index: 1;
}

/* Active Filter Chip (removable) */
.brand-filter-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--brand-space-2);
  padding: var(--brand-space-1) var(--brand-space-2) var(--brand-space-1) var(--brand-space-3);
  background-color: var(--brand-primary-50);
  border: 1px solid var(--brand-primary-200);
  border-radius: var(--brand-radius-full);
  font-size: var(--brand-text-sm);
  color: var(--brand-primary-700);
}

.brand-filter-chip-remove {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.25rem;
  height: 1.25rem;
  padding: 0;
  background-color: var(--brand-primary-200);
  border: none;
  border-radius: var(--brand-radius-full);
  color: var(--brand-primary-700);
  cursor: pointer;
  transition: all var(--brand-transition-fast);
}

.brand-filter-chip-remove:hover {
  background-color: var(--brand-primary-300);
  color: var(--brand-primary-900);
}

/* Filter Dropdown Button */
.brand-filter-dropdown {
  position: relative;
  display: inline-block;
}

.brand-filter-dropdown-btn {
  display: inline-flex;
  align-items: center;
  gap: var(--brand-space-2);
  padding: var(--brand-space-2) var(--brand-space-3);
  background-color: white;
  border: 1px solid var(--brand-neutral-300);
  border-radius: var(--brand-radius-lg);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-700);
  cursor: pointer;
  transition: all var(--brand-transition-fast);
}

.brand-filter-dropdown-btn:hover {
  border-color: var(--brand-neutral-400);
}

.brand-filter-dropdown-btn[aria-expanded="true"],
.brand-filter-dropdown-btn.active {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
  color: white;
}

.brand-filter-dropdown-btn[aria-expanded="true"] .brand-filter-dropdown-arrow,
.brand-filter-dropdown-btn.active .brand-filter-dropdown-arrow {
  transform: rotate(180deg);
}

.brand-filter-dropdown-arrow {
  width: 1rem;
  height: 1rem;
  transition: transform var(--brand-transition-fast);
}

/* Filter Dropdown Panel */
.brand-filter-panel {
  position: absolute;
  top: calc(100% + var(--brand-space-1));
  left: 0;
  z-index: 100;
  min-width: 16rem;
  max-height: 20rem;
  background-color: white;
  border: 1px solid var(--brand-neutral-200);
  border-radius: var(--brand-radius-lg);
  box-shadow: var(--brand-shadow-lg);
  overflow: hidden;
}

/* More Filters Popup Panel (used with More button) */
.brand-more-filters-popup {
  position: absolute;
  top: calc(100% + var(--brand-space-1));
  right: 0;
  z-index: 100;
  min-width: 20rem;
  background-color: white;
  border: 1px solid var(--brand-neutral-200);
  border-radius: var(--brand-radius-lg);
  box-shadow: var(--brand-shadow-lg);
}

.brand-filter-panel-search {
  padding: var(--brand-space-3);
  border-bottom: 1px solid var(--brand-neutral-200);
}

.brand-filter-panel-search input {
  width: 100%;
  padding: var(--brand-space-2) var(--brand-space-3);
  font-size: var(--brand-text-sm);
  border: 1px solid var(--brand-neutral-300);
  border-radius: var(--brand-radius-md);
}

.brand-filter-panel-search input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: var(--brand-focus-ring);
}

.brand-filter-panel-options {
  max-height: 14rem;
  overflow-y: auto;
  padding: var(--brand-space-2) 0;
}

.brand-filter-option {
  display: flex;
  align-items: center;
  gap: var(--brand-space-3);
  width: 100%;
  padding: var(--brand-space-2) var(--brand-space-4);
  background: none;
  border: none;
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-700);
  text-align: left;
  cursor: pointer;
  transition: background-color var(--brand-transition-fast);
}

.brand-filter-option:hover {
  background-color: var(--brand-neutral-50);
}

.brand-filter-option-checkbox {
  width: 1rem;
  height: 1rem;
  border: 2px solid var(--brand-neutral-300);
  border-radius: var(--brand-radius-sm);
  flex-shrink: 0;
}

.brand-filter-option-checkbox.checked {
  background-color: var(--brand-primary);
  border-color: var(--brand-primary);
  background-image: url("data:image/svg+xml,%3csvg viewBox='0 0 16 16' fill='white' xmlns='http://www.w3.org/2000/svg'%3e%3cpath d='M12.207 4.793a1 1 0 010 1.414l-5 5a1 1 0 01-1.414 0l-2-2a1 1 0 011.414-1.414L6.5 9.086l4.293-4.293a1 1 0 011.414 0z'/%3e%3c/svg%3e");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 100%;
}

/* More Filters Panel */
.brand-more-filters {
  padding: var(--brand-space-4) var(--brand-space-6);
  background-color: white;
  border: 1px solid var(--brand-neutral-200);
  border-radius: var(--brand-radius-lg);
  box-shadow: var(--brand-shadow-md);
}

.brand-more-filters-title {
  font-family: var(--brand-font-heading);
  font-size: var(--brand-text-base);
  font-weight: var(--brand-font-semibold);
  color: var(--brand-neutral-900);
  margin-bottom: var(--brand-space-4);
}

.brand-more-filters-chips {
  display: flex;
  flex-wrap: wrap;
  gap: var(--brand-space-2);
  margin-bottom: var(--brand-space-6);
}

/* Addable Filter Chip (pill button) */
.brand-filter-add-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--brand-space-1);
  padding: var(--brand-space-2) var(--brand-space-3);
  background-color: var(--brand-primary-50);
  border: none;
  border-radius: var(--brand-radius-full);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  font-weight: var(--brand-font-medium);
  color: var(--brand-primary);
  cursor: pointer;
  transition: all var(--brand-transition-fast);
}

.brand-filter-add-chip:hover {
  background-color: var(--brand-primary-100);
}

.brand-filter-add-chip.selected {
  background-color: var(--brand-primary);
  color: white;
}

/* Grouping Options (Radio) */
.brand-grouping-options {
  border-top: 1px solid var(--brand-neutral-200);
  padding-top: var(--brand-space-4);
}

.brand-grouping-title {
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  font-weight: var(--brand-font-semibold);
  color: var(--brand-neutral-900);
  margin-bottom: var(--brand-space-3);
}

.brand-radio-group {
  display: flex;
  flex-direction: column;
  gap: var(--brand-space-2);
}

.brand-radio-label {
  display: inline-flex;
  align-items: center;
  gap: var(--brand-space-2);
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-700);
  cursor: pointer;
}

.brand-radio {
  width: 1.125rem;
  height: 1.125rem;
  accent-color: var(--brand-primary);
  cursor: pointer;
}

/* Filter Results Summary */
.brand-filter-results {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--brand-space-3) var(--brand-space-4);
  background-color: var(--brand-neutral-50);
  border-bottom: 1px solid var(--brand-neutral-200);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-600);
}

.brand-clear-filters {
  padding: var(--brand-space-1) var(--brand-space-2);
  background: none;
  border: none;
  font-family: var(--brand-font-body);
  font-size: var(--brand-text-sm);
  color: var(--brand-primary);
  cursor: pointer;
  transition: color var(--brand-transition-fast);
}

.brand-clear-filters:hover {
  color: var(--brand-primary-dark);
  text-decoration: underline;
}

/* Pagination */
.brand-pagination {
  display: flex;
  align-items: center;
  gap: var(--brand-space-2);
  padding: var(--brand-space-4);
  border-top: 1px solid var(--brand-neutral-200);
  font-size: var(--brand-text-sm);
  color: var(--brand-neutral-600);
}

.brand-pagination-info {
  flex: 1;
}

.brand-pagination-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  padding: 0;
  background-color: white;
  border: 1px solid var(--brand-neutral-300);
  border-radius: var(--brand-radius-md);
  color: var(--brand-neutral-600);
  cursor: pointer;
  transition: all var(--brand-transition-fast);
}

.brand-pagination-nav:hover:not(:disabled) {
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

.brand-pagination-nav:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}