/* ====================================================
   HRMS UI - Professional Design System
   Version: 1.0.0
   Structure: Modular, Reusable, Maintainable
   ==================================================== */

/* ====================================================
   1. CSS RESET & BASE STYLES
   ==================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ====================================================
   2. DESIGN TOKENS & THEME SYSTEM
   ==================================================== */

/* 2.1 Light Theme Variables */
:root {
  color-scheme: light;
  
  /* Typography Scale */
  --font-xs: 0.75rem;
  --font-sm: 0.875rem;
  --font-base: 1rem;
  --font-lg: 1.125rem;
  --font-xl: 1.25rem;
  --font-2xl: 1.5rem;
  --font-3xl: 1.875rem;
  --font-4xl: 2.25rem;
  
  /* Spacing Scale */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-0: 0rem;
  --space-0-25: 0.25rem;
  --space-0-5: 0.5rem;
  --space-0-75: 0.75rem;
  --space-1: 1rem;
  --space-2: 2rem;
  --space-3: 3rem;
  --space-4: 4rem;
  
  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.25s ease;
  --transition-slow: 0.3s ease;
  
  /* Z-index Scale */
  --z-dropdown: 1000;
  --z-sticky: 1020;
  --z-modal: 1050;
  --z-popover: 1060;
  --z-tooltip: 1070;
}

/* 2.2 Color System - Light Theme */
:root {
  /* Backgrounds & Surfaces */
  --app-bg: #eceffe;
  --sidebar-bg: linear-gradient(180deg, #1e293b 0%, #0f172a 100%);
  --surface: #f8f8f8;
  --surface-soft: #f1f5f9;
  --surface-hover: #f8fafc;
  --card: #f1f5f9;
  --card-hover: #e5eaf4;
  --scrollbar-track: #a1cdf8;
  --scrollbar-thumb: #44a1fd;

  /* Borders & Dividers */
  --border: #e2e8f0;
  --border-hover: #cbd5e1;

  /* Text Colors */
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-tertiary: #94a3b8;
  --text-muted: #94a3b8;
  --text-inverse: #f8fafc;

  /* Brand Colors */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-soft: #dbeafe;
  --secondary: #64748b;
  --secondary-hover: #475569;
  --secondary-soft: #f1f5f9;
  --accent: #3b82f6;
  --accent-hover: #2563eb;
  --accent-light: #dbeafe;
  --input-bg: #e8f0fe;

  /* Semantic Colors */
  --success: #16a34a;
  --success-soft: #dcfce7;
  --success-text: #14532d;
  --warning: #f59e0b;
  --warning-soft: #fef3c7;
  --warning-text: #78350f;
  --danger: #dc2626;
  --danger-soft: #fee2e2;
  --danger-text: #7f1d1d;
  --info: #2563eb;
  --info-soft: #dbeafe;
  --info-text: #1e3a8a;
  --purple: #7c3aed;
  --purple-soft: #ede9fe;
  --purple-text: #4c1d95;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 10px 20px rgba(0, 0, 0, 0.12);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  --shadow-sm-long: 0 10px 15px -3px rgba(0, 0, 0, 0.05);

  
  /* Gradients */
  --grad-primary: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
  --grad-success: linear-gradient(135deg, #22c55e 0%, #16a34a 100%);
  --grad-warning: linear-gradient(135deg, #fbbf24 0%, #f59e0b 100%);
  --grad-danger: linear-gradient(135deg, #f87171 0%, #dc2626 100%);
}

/* 2.3 Dark Theme Variables */
:root[data-theme="dark"] {
  color-scheme: dark;
  
  /* Backgrounds & Surfaces */
  --app-bg: #020617;
  --sidebar-bg: linear-gradient(180deg, #1e293b 0%, #020617 100%);
  --surface: #0f172a;
  --surface-soft: #1e293b;
  --surface-hover: #334155;
  --card: #1e293b;
  --card-hover: #334155;

  /* Borders & Dividers */
  --border: #334155;
  --border-hover: #475569;

  /* Text Colors */
  --text-primary: #f8fafc;
  --text-secondary: #cbd5e1;
  --text-tertiary: #64748b;
  --text-muted: #94a3b8;
  --text-inverse: #0f172a;

  /* Brand Colors */
  --primary: #2382f5;
  --primary-hover: #3b82f6;
  --primary-soft: #1e3a8a;
  --secondary: #94a3b8;
  --secondary-hover: #cbd5e1;
  --secondary-soft: #334155;
  --accent: #60a5fa;
  --accent-hover: #3b82f6;
  --accent-light: #1e40af;
  --input-bg: #25324b;


  /* Semantic Colors */
  --success: #22c55e;
  --success-soft: #14532d;
  --success-text: #dcfce7;
  --warning: #fbbf24;
  --warning-soft: #78350f;
  --warning-text: #fef3c7;
  --danger: #ef4444;
  --danger-soft: #7f1d1d;
  --danger-text: #fee2e2;
  --info: #60a5fa;
  --info-soft: #1e3a8a;
  --info-text: #dbeafe;
  --purple: #a78bfa;
  --purple-soft: #4c1d95;
  --purple-text: #ede9fe;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.6);
  --shadow-md: 0 4px 14px rgba(0, 0, 0, 0.8);
  --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.9);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
}

/* 2.4 Color Palette Utilities */
:root {
  /* Blue Scale */
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-300: #93c5fd;
  --blue-400: #60a5fa;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-800: #1e40af;
  --blue-900: #1e3a8a;

  /* Slate Scale */
  --slate-50: #f8fafc;
  --slate-100: #f1f5f9;
  --slate-200: #e2e8f0;
  --slate-300: #cbd5e1;
  --slate-400: #94a3b8;
  --slate-500: #64748b;
  --slate-600: #475569;
  --slate-700: #334155;
  --slate-800: #1e293b;
  --slate-900: #0f172a;

  /* Extended Palette */
  --green-500: #10b981;
  --green-600: #059669;
  --amber-500: #f59e0b;
  --amber-600: #d97706;
  --red-100: #fee2e2;
  --red-300: #fca5a5;
  --red-400: #f87171;
  --red-500: #ef4444;
  --red-600: #dc2626;
  --red-800: #991b1b;
  --red-900: #7f1d1d;
}

:root[data-theme="dark"] {
  /* Slate Scale */
  --slate-50: #0f172a;
  --slate-100: #1e293b;
  --slate-200: #334155;
  --slate-300: #475569;
  --slate-400: #64748b;
  --slate-500: #94a3b8;
  --slate-600: #cbd5e1;
  --slate-700: #e2e8f0;
  --slate-800: #f1f5f9;
  --slate-900: #f8fafc;


  /* Extended Palette */
  --green-500: #22c55e;
  --green-600: #16a34a;
  --amber-500: #fbbf24;
  --amber-600: #f59e0b;
}

/* Theme Transition */
*, *::before, *::after {
  transition: background-color var(--transition-base),
              border-color var(--transition-base),
              color var(--transition-base),
              box-shadow var(--transition-base);
}

/* All scrollbars */
* {
  scrollbar-width: thin;
  scrollbar-color: transparent transparent;
}

*:hover {
  scrollbar-color: var(--scrollbar-thumb) var(--scrollbar-track);
}
*::-webkit-scrollbar {
  width: 4px;
  height: 4px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: transparent;
  border-radius: 3px;
  border: 1px solid var(--surface);
}
*:hover::-webkit-scrollbar-thumb {
  background: var(--scrollbar-thumb);
  box-shadow: inset 0 0 0 2px rgba(255,255,255,0.03); 
}

/* ====================================================
   3. LAYOUT COMPONENTS
   ==================================================== */

/* 3.1 App Shell */
.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  height: 100vh;
}

/* 3.2 Header */
.app-header {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  box-shadow: var(--shadow-sm);
}

.app-header::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--grad-primary);
  opacity: 0.6;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-0-75);
}

.dropdown {
  position: absolute;
  right: 0;
  top: 48px;
  min-width: 220px;
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  padding: 8px;
  display: none;
  z-index: 1000;
}

/* 3.3 Sidebar */
.sidebar {
  position: relative;
  width: 260px;
  height: 100%;
  background: var(--sidebar-bg);
  background-image: url('/static/images/sidebarBg3.jpeg');
  background-repeat: repeat-y;
  background-position: center center;
  border-right: 1px solid var(--border);
  padding: var(--space-lg) var(--space-md);
  overflow-y: auto;
  overflow-x: hidden;
  transition: width var(--transition-slow),
              padding var(--transition-slow);
}

.sidebar::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,15,30,0.18), rgba(8,15,30,0.12));
  pointer-events: none;
  z-index: 1;
}



:root[data-theme="dark"] .sidebar::after {
  background: transparent;
}

/* 3.4 Content Area */
.content {
  overflow-y: auto;
  overflow-x: hidden;
  background: var(--app-bg);
  padding: var(--space-2xl);
}


/* ====================================================
   4. UI COMPONENTS
   ==================================================== */

/* 4.1 Brand & Logo */
.brand {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--grad-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: var(--font-base);
  color: #ffffff;
  box-shadow: var(--shadow-md);
  transition: transform var(--transition-slow);
}

.brand-logo:hover {
  transform: scale(1.05) rotate(-5deg);
}

/* 4.2 Cards */
.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--accent);
  box-shadow: var(--shadow-lg);
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover::before {
  opacity: 1;
}

.card-title {
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.card-value {
  font-size: var(--font-3xl);
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -1px;
  line-height: 1.2;
}

/* 4.3 Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--font-sm);
  font-weight: 600;
  line-height: 1.4;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

/* Button Variants */
.btn-primary {
  background: var(--grad-primary);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(59, 130, 246, 0.35);
}

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

.btn-outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}

.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  border: 1px solid var(--border);
}

.btn-danger {
  background: var(--danger);
  color: #ffffff;
  border-color: var(--danger);
}

.btn-success {
  background: var(--success);
  color: #ffffff;
  border-color: var(--success);
}

.btn-warning {
  background: var(--warning);
  color: #ffffff;
  border-color: var(--warning);
}

/* Button Sizes */
.btn-sm {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-xs);
}

.btn-lg {
  padding: var(--space-lg) var(--space-xl);
  font-size: var(--font-base);
}

.btn-icon {
  padding: var(--space-md);
  width: 40px;
  height: 40px;
  justify-content: center;
}

.btn-theme {
  background: var(--surface-soft);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

/* 4.4 Forms */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.form-label {
  font-size: var(--font-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form-control {
  width: 100%;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  font-size: var(--font-sm);
  font-family: inherit;
  outline: none;
  transition: all var(--transition-base);
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-light);
}

.form-control::placeholder {
  color: var(--text-muted);
}

/* 4.5 Tables */
.table-container {
  width: 100%;
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table thead {
  background: var(--surface-soft);
  border-bottom: 2px solid var(--border);
}

.table th {
  padding: var(--space-md) var(--space-lg);
  text-align: left;
  font-size: var(--font-xs);
  font-weight: 700;
  color: var(--text-primary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.table td {
  padding: var(--space-md) var(--space-lg);
  color: var(--text-secondary);
  font-size: var(--font-sm);
  border-bottom: 1px solid var(--border);
}

.table tbody tr {
  transition: background-color var(--transition-fast);
}

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

/* 4.6 Messages & Alerts */
.message-box {
  position: relative;
  margin-bottom: var(--space-sm);
  padding: var(--space-md) var(--space-2xl) var(--space-md) var(--space-md);
  border-radius: var(--radius-md);
  border-left: 4px solid;
  background: var(--surface);
  box-shadow: var(--shadow-md);
  color: var(--text-primary);
  font-size: var(--font-sm);
  font-weight: 500;
  animation: slideInRight 0.3s ease;
}

.message-success {
  background: var(--success-soft);
  border-left-color: var(--success);
  color: var(--success-text);
}

.message-error {
  background: var(--danger-soft);
  border-left-color: var(--danger);
  color: var(--danger-text);
}

.message-warning {
  background: var(--warning-soft);
  border-left-color: var(--warning);
  color: var(--warning-text);
}

.message-info {
  background: var(--info-soft);
  border-left-color: var(--info);
  color: var(--info-text);
}

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

/* 4.7 Navigation & Menus */
.menu-section {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xs);
  cursor: pointer;
  font-weight: 600;
  font-size: var(--font-xs);
  color: rgba(255, 255, 255, 0.7);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition: all var(--transition-base);
}

.menu-link {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-xs);
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  font-size: var(--font-sm);
  font-weight: 500;
  transition: all var(--transition-base);
}

.menu-link:hover {
  background: rgba(255, 255, 255, 0.12);
  color: #ffffff;
  transform: translateX(4px);
}

.menu-link.active {
  background: var(--grad-primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 0 20px rgba(59, 130, 246, 0.15);
}

/* 4.8 Employee Cards */
.employee-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  display: flex;
  gap: var(--space-md);
  align-items: center;
  transition: all var(--transition-base);
}

.employee-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--accent);
}

.employee-avatar {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  overflow: hidden;
  flex-shrink: 0;
  background: linear-gradient(135deg, rgba(59,130,246,0.18), rgba(139,92,246,0.08));
}

.employee-name {
  font-weight: 700;
  color: var(--text-primary);
}

.employee-role {
  font-size: var(--font-xs);
  color: var(--text-muted);
}

/* 4.9 Tabs */
.tab-bar {
  display: flex;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.tab-btn {
  padding: var(--space-md) var(--space-lg);
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-weight: 600;
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
}

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

.tab-btn.active {
  color: var(--accent);
  border-bottom-color: var(--accent);
}

/* 4.10 Badges & Chips */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-full);
  font-size: var(--font-xs);
  font-weight: 600;
  line-height: 1;
}

.badge-primary {
  background: var(--primary-soft);
  color: var(--primary);
}

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

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

.badge-danger {
  background: var(--danger-soft);
  color: var(--danger);
}

/* ====================================================
   4.11 DROPDOWNS & MENUS
   ==================================================== */

/* 4.11.1 Dropdown Container */
.hrms-menu {
  position: relative;
  display: inline-block;
}

/* 4.11.2 Dropdown Trigger Button */
.hrms-menu__trigger {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-primary);
  font-size: var(--font-sm);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  user-select: none;
  white-space: nowrap;
}

.hrms-menu__trigger:hover {
  background: var(--surface-hover);
  border-color: var(--border-hover);
}

.hrms-menu__trigger:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.hrms-menu__trigger[aria-expanded="true"] {
  background: var(--surface-soft);
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

.hrms-menu__trigger .fa-chevron-down {
  transition: transform var(--transition-base);
  font-size: var(--font-xs);
}

.hrms-menu__trigger[aria-expanded="true"] .fa-chevron-down {
  transform: rotate(180deg);
}

/* 4.11.3 Dropdown Panel */
.hrms-dropdown {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  max-width: 320px;
  margin-top: var(--space-xs);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: var(--z-dropdown);
  overflow: hidden;
  animation: dropdownFadeIn 0.2s ease;
}

.hrms-dropdown.open,
.hrms-dropdown[aria-hidden="false"] {
  display: flex;
  flex-direction: column;
}

/* Dropdown alignment variants */
.hrms-dropdown--right {
  left: auto;
  right: 0;
}

.hrms-dropdown--center {
  left: 50%;
  transform: translateX(-50%);
}

.hrms-dropdown--top {
  top: auto;
  bottom: 100%;
  margin-top: 0;
  margin-bottom: var(--space-xs);
}

/* 4.11.4 Dropdown Items */
.hrms-drop-item {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  color: var(--text-secondary);
  text-decoration: none;
  font-size: var(--font-sm);
  font-weight: 500;
  transition: all var(--transition-fast);
  border: none;
  background: none;
  text-align: left;
  cursor: pointer;
  width: 100%;
}

.hrms-drop-item:hover,
.hrms-drop-item:focus {
  background: var(--surface-hover);
  color: var(--text-primary);
  outline: none;
}

.hrms-drop-item:active {
  background: var(--surface-soft);
}

.hrms-drop-item--active {
  background: var(--accent-light);
  color: var(--accent);
  font-weight: 600;
}

.hrms-drop-item--danger {
  color: var(--danger);
}

.hrms-drop-item--danger:hover,
.hrms-drop-item--danger:focus {
  background: var(--danger-soft);
  color: var(--danger);
}

.hrms-drop-item--success {
  color: var(--success);
}

.hrms-drop-item--success:hover,
.hrms-drop-item--success:focus {
  background: var(--success-soft);
  color: var(--success);
}

/* 4.11.5 Dropdown Sections & Dividers */
.hrms-drop-section {
  padding: var(--space-sm) var(--space-lg) 0;
  margin-top: var(--space-sm);
  border-top: 1px solid var(--border);
}

.hrms-drop-section:first-child {
  border-top: none;
  margin-top: 0;
  padding-top: 0;
}

.hrms-drop-section__title {
  display: block;
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--font-xs);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.hrms-drop-divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-xs) 0;
  border: none;
}

/* 4.11.6 Dropdown with Icons */
.hrms-drop-item__icon {
  width: 16px;
  height: 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  flex-shrink: 0;
}

.hrms-drop-item:hover .hrms-drop-item__icon {
  color: var(--text-primary);
}

.hrms-drop-item--active .hrms-drop-item__icon {
  color: var(--accent);
}

.hrms-drop-item--danger .hrms-drop-item__icon {
  color: var(--danger);
}

/* 4.11.7 Multi-level Dropdown */
.hrms-drop-submenu {
  position: relative;
}

.hrms-drop-submenu .hrms-drop-item {
  justify-content: space-between;
}

.hrms-drop-submenu .fa-chevron-right {
  font-size: var(--font-xs);
  color: var(--text-muted);
  transition: transform var(--transition-base);
}

.hrms-drop-submenu:hover .fa-chevron-right {
  transform: translateX(2px);
  color: var(--text-primary);
}

.hrms-drop-submenu .hrms-dropdown {
  top: 0;
  left: 100%;
  margin-top: calc(-1 * var(--space-xs));
  margin-left: var(--space-xs);
}

/* 4.11.8 Dropdown Sizes */
.hrms-dropdown--sm {
  min-width: 160px;
  font-size: var(--font-xs);
}

.hrms-dropdown--sm .hrms-drop-item {
  padding: var(--space-sm) var(--space-md);
  font-size: var(--font-xs);
}

.hrms-dropdown--lg {
  min-width: 280px;
  font-size: var(--font-base);
}

.hrms-dropdown--lg .hrms-drop-item {
  padding: var(--space-lg) var(--space-xl);
  font-size: var(--font-base);
}

/* 4.11.9 Dropdown States */
.hrms-dropdown--loading .hrms-drop-item {
  opacity: 0.6;
  pointer-events: none;
}

.hrms-dropdown--disabled {
  opacity: 0.5;
  pointer-events: none;
}

.hrms-drop-item--disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* 4.11.10 Animations */
@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hrms-dropdown[data-animation="slide"] {
  animation: dropdownSlideIn 0.2s ease;
}

@keyframes dropdownSlideIn {
  from {
    opacity: 0;
    transform: translateY(-10px) scale(0.95);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* 4.11.11 Searchable Dropdown */
.hrms-dropdown--searchable {
  padding: var(--space-sm);
}

.hrms-drop-search {
  padding: var(--space-sm);
  margin-bottom: var(--space-sm);
}

.hrms-drop-search__input {
  width: 100%;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-soft);
  color: var(--text-primary);
  font-size: var(--font-sm);
}

.hrms-drop-search__input:focus {
  outline: 2px solid var(--accent);
  border-color: transparent;
}

/* 4.11.12 Scrollable Dropdown */
.hrms-dropdown--scrollable {
  max-height: 300px;
  overflow-y: auto;
}

/* 4.11.13 Empty State */
.hrms-drop-empty {
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  color: var(--text-muted);
}

.hrms-drop-empty__icon {
  font-size: 1.5rem;
  margin-bottom: var(--space-sm);
  opacity: 0.5;
}

.hrms-drop-empty__message {
  font-size: var(--font-sm);
  color: var(--text-muted);
}

/* Avatar variants for dropdown triggers */
.hrms-menu__trigger--avatar {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-xs) var(--space-sm);
  background: transparent;
  border: 1px solid transparent;
}

.hrms-menu__trigger--avatar:hover {
  background: var(--surface-hover);
  border-color: var(--border);
}

.hrms-user-info {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.hrms-user-avatar {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-md);
  background: var(--grad-primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: var(--font-sm);
  flex-shrink: 0;
}

.hrms-user-avatar.small {
  width: 24px;
  height: 24px;
  font-size: var(--font-xs);
}

.hrms-user-details {
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: left;
}

.hrms-user-name {
  font-weight: 600;
  color: var(--text-primary);
  font-size: var(--font-sm);
  white-space: nowrap;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
}

.hrms-user-role,
.hrms-user-email {
  font-size: var(--font-xs);
  color: var(--text-muted);
  white-space: nowrap;
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* User summary inside dropdown */
.hrms-user-summary {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm);
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  margin-bottom: var(--space-xs);
}

.hrms-user-summary .hrms-user-name {
  font-size: var(--font-sm);
  font-weight: 600;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hrms-user-details {
    display: none;
  }
  
  .hrms-menu__trigger--avatar {
    padding: var(--space-xs);
  }
  
  .hrms-user-avatar {
    width: 28px;
    height: 28px;
    font-size: var(--font-xs);
  }
}

/* ====================================================
   RESPONSIVE DROPDOWNS
   ==================================================== */

@media (max-width: 768px) {
  .hrms-dropdown {
    position: fixed;
    top: 50% !important;
    left: 50% !important;
    right: auto !important;
    bottom: auto !important;
    transform: translate(-50%, -50%);
    width: 90vw;
    max-width: 320px;
    max-height: 70vh;
    margin: 0;
    box-shadow: var(--shadow-xl);
  }

  .hrms-dropdown--top,
  .hrms-dropdown--right,
  .hrms-dropdown--center {
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%);
  }

  .hrms-drop-submenu .hrms-dropdown {
    position: fixed;
    top: 50% !important;
    left: 50% !important;
    transform: translate(-50%, -50%);
  }
}

/* ====================================================
   DROPDOWN ACCESSIBILITY
   ==================================================== */

.hrms-menu__trigger[aria-expanded="true"] {
  z-index: calc(var(--z-dropdown) + 1);
}

.hrms-dropdown:focus-within {
  box-shadow: 0 0 0 3px var(--accent-light);
}

/* Focus order for keyboard navigation */
.hrms-drop-item:focus {
  position: relative;
  z-index: 1;
}

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


/* ====================================================
   5. UTILITY CLASSES
   ==================================================== */

/* 5.1 Spacing Utilities */
.m-0 { margin: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }

.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }

.p-1 { padding: var(--space-xs); }
.p-2 { padding: var(--space-sm); }
.p-3 { padding: var(--space-md); }
.p-4 { padding: var(--space-lg); }
.p-5 { padding: var(--space-xl); }

/* 5.2 Text Utilities */
.text-primary { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-success { color: var(--success); }
.text-warning { color: var(--warning); }
.text-danger { color: var(--danger); }
.text-info { color: var(--info); }

.text-xs { font-size: var(--font-xs); }
.text-sm { font-size: var(--font-sm); }
.text-base { font-size: var(--font-base); }
.text-lg { font-size: var(--font-lg); }
.text-xl { font-size: var(--font-xl); }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

/* 5.3 Display Utilities */
.d-block { display: block; }
.d-inline { display: inline; }
.d-inline-block { display: inline-block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }
.d-grid { display: grid; }
.d-none { display: none; }

/* 5.4 Flex Utilities */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-nowrap { flex-wrap: nowrap; }
.items-start { align-items: flex-start; }
.items-center { align-items: center; }
.items-end { align-items: flex-end; }
.justify-start { justify-content: flex-start; }
.justify-center { justify-content: center; }
.justify-end { justify-content: flex-end; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: var(--space-xs); }
.gap-2 { gap: var(--space-sm); }
.gap-3 { gap: var(--space-md); }
.gap-4 { gap: var(--space-lg); }

/* 5.5 Grid Utilities */
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-12 { grid-template-columns: repeat(12, 1fr); }

.col-span-1 { grid-column: span 1; }
.col-span-2 { grid-column: span 2; }
.col-span-3 { grid-column: span 3; }
.col-span-4 { grid-column: span 4; }
.col-span-6 { grid-column: span 6; }
.col-span-12 { grid-column: span 12; }

/* 5.6 Border Utilities */
.border-0 { border: none; }
.border { border: 1px solid var(--border); }
.border-1 { border: 1px solid var(--slate-300); }
.border-2 { border: 2px solid var(--slate-400); }
.border-3 { border: 3px solid var(--slate-500); }
.border-primary { border: 1px solid var(--primary); }
.border-accent { border: 1px solid var(--accent); }
.border-success { border: 1px solid var(--success); }
.border-warning { border: 1px solid var(--warning); }
.border-danger { border: 1px solid var(--danger); }

.br-0 { border-radius: 0; }
.br-sm { border-radius: var(--radius-sm); }
.br-md { border-radius: var(--radius-md); }
.br-lg { border-radius: var(--radius-lg); }
.br-xl { border-radius: var(--radius-xl); }
.br-full { border-radius: var(--radius-full); }
/* ====================================================
   6. RESPONSIVE DESIGN
   ==================================================== */

/* 6.1 Tablet */
@media (max-width: 1024px) {
  .app-shell {
    grid-template-columns: 1fr;
  }
  
  .sidebar {
    position: fixed;
    left: -260px;
    top: 64px;
    height: calc(100vh - 64px);
    z-index: var(--z-modal);
    transition: left var(--transition-slow);
  }
  
  .sidebar.open {
    left: 0;
  }
  
  .grid-cols-4,
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .content {
    padding: var(--space-lg);
  }
}

/* 6.2 Mobile */
@media (max-width: 768px) {
  .app-header {
    padding: 0 var(--space-md);
  }
  
  .grid-cols-4,
  .grid-cols-3,
  .grid-cols-2 {
    grid-template-columns: 1fr;
  }
  
  .col-span-1,
  .col-span-2,
  .col-span-3,
  .col-span-4,
  .col-span-6 {
    grid-column: span 1;
  }
  
  .btn-lg {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-sm);
  }
  
  .card {
    padding: var(--space-md);
  }
  
  .content {
    padding: var(--space-md);
  }
  
  .table-container {
    font-size: var(--font-xs);
  }
  
  .table th,
  .table td {
    padding: var(--space-sm);
  }
}

/* 6.3 Small Mobile */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }
  
  .brand-logo {
    width: 32px;
    height: 32px;
    font-size: var(--font-sm);
  }
  
  .card-title {
    font-size: var(--font-xs);
  }
  
  .card-value {
    font-size: var(--font-2xl);
  }
}

/* ====================================================
   7. SPECIALIZED COMPONENTS
   ==================================================== */

/* 7.1 Calendar Component */
.calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: var(--space-xs);
}

.calendar-day {
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  transition: all var(--transition-fast);
}

.calendar-day:hover {
  background: var(--surface-hover);
  border-color: var(--accent);
}

.calendar-day.today {
  background: var(--accent-light);
  border-color: var(--accent);
  font-weight: 600;
}

.calendar-day.selected {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* 7.2 Dashboard Filters */
.dashboard-filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-md);
  background: var(--surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.dashboard-filters .form-control {
  min-width: 160px;
  flex: 1;
}

/* 7.3 Page Headers */
.page-header {
  margin-bottom: var(--space-xl);
  padding-bottom: var(--space-lg);
  border-bottom: 1px solid var(--border);
}

.page-header h1 {
  font-size: var(--font-4xl);
  font-weight: 700;
  color: var(--accent);
  margin-bottom: var(--space-xs);
}

.page-header .subtitle {
  font-size: var(--font-base);
  color: var(--text-muted);
}

/* 7.4 Empty States */
.empty-state {
  text-align: center;
  padding: var(--space-2xl) var(--space-xl);
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-lg);
  opacity: 0.5;
}

.empty-state-title {
  font-size: var(--font-xl);
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.empty-state-description {
  font-size: var(--font-base);
  color: var(--text-muted);
  max-width: 400px;
  margin: 0 auto;
}

/* ====================================================
   8. ANIMATIONS & TRANSITIONS
   ==================================================== */

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.fade-in {
  animation: fadeIn var(--transition-slow);
}

.slide-up {
  animation: slideUp var(--transition-slow);
}

.pulse {
  animation: pulse 2s infinite;
}

/* ====================================================
   9. PRINT STYLES
   ==================================================== */

@media print {
  .sidebar,
  .app-header,
  .btn,
  .dashboard-filters {
    display: none !important;
  }
  
  .app-shell {
    grid-template-columns: 1fr;
  }
  
  .content {
    padding: 0;
    overflow: visible;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none;
    border: 1px solid #ddd;
  }
  
  body {
    background: white;
    color: black;
  }
}

/* ====================================================
   10. ACCESSIBILITY
   ==================================================== */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.skip-to-content {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--accent);
  color: white;
  padding: var(--space-md);
  z-index: var(--z-tooltip);
  text-decoration: none;
}

.skip-to-content:focus {
  top: 0;
}