/* ==========================================================================
   Dental Lab System - Modern Design System
   Created by Senior UI/UX Designer
   ========================================================================== */

/* CSS Custom Properties (Variables) */
:root {
  /* Primary Color Palette - Dental/Medical Theme */
  --primary-50: #f0f9ff;
  --primary-100: #e0f2fe;
  --primary-200: #bae6fd;
  --primary-300: #7dd3fc;
  --primary-400: #38bdf8;
  --primary-500: #0ea5e9;
  --primary-600: #0284c7;
  --primary-700: #0369a1;
  --primary-800: #075985;
  --primary-900: #0c4a6e;

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

  /* Semantic Colors */
  --success-50: #f0fdf4;
  --success-500: #22c55e;
  --success-600: #16a34a;
  --warning-50: #fffbeb;
  --warning-500: #f59e0b;
  --warning-600: #d97706;
  --danger-50: #fef2f2;
  --danger-500: #ef4444;
  --danger-600: #dc2626;
  --info-50: #f0f9ff;
  --info-500: #3b82f6;
  --info-600: #2563eb;

  /* Dynamic Theme Colors - Light Theme Default */
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafc;
  --bg-tertiary: #f1f5f9;
  --bg-gradient-start: #f8fafc;
  --bg-gradient-end: #f0f9ff;
  
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;
  
  --border-color: #e2e8f0;
  --border-light: #f1f5f9;
  --border-dark: #cbd5e1;
  
  --card-bg: #ffffff;
  --card-border: #e2e8f0;
  --navbar-bg: #ffffff;
  --footer-bg: #ffffff;
  
  --glass-bg: #f8fafc;
  --glass-border: #e2e8f0;

  /* Spacing System */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;

  /* Typography */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
  --font-family-mono: 'JetBrains Mono', 'Fira Code', 'Monaco', monospace;
  
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --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);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;

  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-normal: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;

  /* Dark theme scrollbar overrides */
  scrollbar-color: var(--border-light) var(--bg-tertiary);
}

/* Dark theme specific scrollbar styling */
[data-theme="dark"] ::-webkit-scrollbar-track {
  background: var(--bg-tertiary);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb {
  background: var(--border-light);
}

[data-theme="dark"] ::-webkit-scrollbar-thumb:hover {
  background: var(--text-secondary);
}

[data-theme="dark"] ::-webkit-scrollbar-corner {
  background: var(--bg-tertiary);
}

/* Scrollbar Styling */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-secondary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-color);
  border-radius: 4px;
  transition: background 0.2s ease;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

::-webkit-scrollbar-corner {
  background: var(--bg-secondary);
}

/* Firefox scrollbar */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--border-color) var(--bg-secondary);
}

/* Dark Theme */
[data-theme="dark"] {
  /* Primary colors remain the same but adjusted for dark mode */
  --primary-50: #0c1625;
  --primary-100: #1e3a5f;
  --primary-200: #2563eb;
  --primary-300: #3b82f6;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;

  /* Dark Theme Specific Colors */
  --bg-primary: #0f0f23;
  --bg-secondary: #1a1a2e;
  --bg-tertiary: #16213e;
  --bg-gradient-start: #0f0f23;
  --bg-gradient-end: #1a1a2e;
  
  --text-primary: #f1f3f5;
  --text-secondary: #c1c8d1;
  --text-muted: #9ca3af;
  --text-inverse: #0f172a;
  
  --border-color: #2a2a3e;
  --border-light: #1f1f35;
  --border-dark: #3a3a4e;
  
  --card-bg: #1a1a2e;
  --card-border: #2a2a3e;
  --navbar-bg: #0f0f23;
  --footer-bg: #0f0f23;
  
  --glass-bg: #16213e;
  --glass-border: #2a2a3e;

  /* Adjust shadows for dark theme */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.3);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.4), 0 2px 4px -2px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.5), 0 4px 6px -4px rgb(0 0 0 / 0.4);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.6), 0 8px 10px -6px rgb(0 0 0 / 0.5);

  /* Dark theme semantic colors */
  --success-50: #0a2e0a;
  --success-500: #16a34a;
  --success-600: #22c55e;
  --warning-50: #2e1f0a;
  --warning-500: #f59e0b;
  --warning-600: #fbbf24;
  --danger-50: #2e0a0a;
  --danger-400: #f87171;
  --danger-500: #ef4444;
  --danger-600: #dc2626;
  --info-50: #0a1a2e;
  --info-500: #3b82f6;
  --info-600: #60a5fa;
}

/* ==========================================================================
   Theme Switcher Component
   ========================================================================== */

.theme-switcher {
  position: relative;
  display: inline-flex;
  align-items: center;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 2rem;
  padding: 0.25rem;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
}

.theme-switcher:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-1px);
}

.theme-switch-button {
  background: none;
  border: none;
  border-radius: 50%;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition-normal);
  color: var(--text-muted);
  position: relative;
  overflow: hidden;
}

.theme-switch-button:hover {
  color: var(--primary-600);
  transform: scale(1.1);
}

.theme-switch-button.active {
  background: linear-gradient(135deg, var(--primary-500), var(--primary-600));
  color: white;
  box-shadow: var(--shadow-md);
  transform: scale(1.05);
}

.theme-switch-button i {
  font-size: 1.1rem;
  transition: var(--transition-fast);
}

.theme-switch-button.active i {
  transform: rotate(360deg);
}

/* Theme transition effect removed for instant switching */

/* ==========================================================================
   Base Styles
   ========================================================================== */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(135deg, var(--bg-gradient-start) 0%, var(--bg-gradient-end) 100%);
  margin: 0;
  padding: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  /* Optimized scroll performance */
  -webkit-overflow-scrolling: touch;
  will-change: scroll-position;
}

.main-content {
  flex: 1;
  padding-top: 80px; /* Account for fixed navbar */
  padding-bottom: var(--space-xl);
}

.page-content {
  padding: var(--space-lg) 0;
}

/* ==========================================================================
   Typography
   ========================================================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--space-md);
  color: var(--text-secondary);
}

.lead {
  font-size: var(--font-size-lg);
  font-weight: 400;
  color: var(--text-secondary);
}

/* ==========================================================================
   Navigation
   ========================================================================== */

.navbar {
  background: var(--navbar-bg);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-sm);
  padding: var(--space-md) 0;
  /* Performance optimization */
  transform: translate3d(0, 0, 0);
}

.navbar.fixed-top {
  z-index: 1030;
}

.navbar-brand {
  font-weight: 700;
  font-size: var(--font-size-xl);
  color: var(--primary-700) !important;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  user-select: none;
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
}

.navbar-brand i {
  font-size: var(--font-size-2xl);
  color: var(--primary-600);
}

/* ==========================================================================
   Breadcrumbs
   ========================================================================== */

.breadcrumb {
  background: transparent;
  padding: var(--space-sm) 0;
  margin-bottom: var(--space-lg);
  border-radius: 0;
  font-size: var(--font-size-sm);
}

.breadcrumb-item {
  color: var(--text-muted);
}

.breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  color: var(--text-muted);
  padding: 0 var(--space-sm);
}

.breadcrumb-item a {
  color: var(--primary-600);
  text-decoration: none;
  transition: var(--transition-fast);
}

.breadcrumb-item a:hover {
  color: var(--primary-700);
  text-decoration: underline;
}

.breadcrumb-item.active {
  color: var(--text-secondary);
  font-weight: 500;
}

/* Dark theme breadcrumbs */
[data-theme="dark"] .breadcrumb-item {
  color: var(--text-muted);
}

[data-theme="dark"] .breadcrumb-item + .breadcrumb-item::before {
  color: var(--text-muted);
}

[data-theme="dark"] .breadcrumb-item a {
  color: var(--primary-400);
}

[data-theme="dark"] .breadcrumb-item a:hover {
  color: var(--primary-300);
}

[data-theme="dark"] .breadcrumb-item.active {
  color: var(--text-primary);
}

/* Mobile Navbar Improvements */
@media (max-width: 768px) {
  .navbar .container {
    padding-left: var(--space-sm);
    padding-right: var(--space-sm);
  }

  .navbar-brand span {
    display: none;
  }

  .navbar-brand i {
    font-size: var(--font-size-xl);
  }

  /* Keep navbar items in row on mobile */
  .navbar-nav {
    flex-direction: row !important;
    align-items: center !important;
  }

  .nav-item.dropdown {
    position: static;
  }

  /* Dropdown positioning for mobile */
  .notifications-dropdown,
  .user-dropdown {
    position: fixed !important;
    top: 60px !important;
    left: 50% !important;
    transform: translateX(-50%) !important;
    right: auto !important;
    min-width: 300px !important;
    max-width: 90vw !important;
    z-index: 1050 !important;
    box-shadow: var(--shadow-lg) !important;
    border: 1px solid var(--border-color) !important;
    border-radius: var(--radius-lg) !important;
    background: var(--card-bg) !important;
  }

  .user-dropdown {
    min-width: 250px !important;
  }

  /* Improve mobile nav links */
  .nav-link {
    padding: var(--space-sm) !important;
    border-radius: var(--radius-md);
    transition: var(--transition-fast);
    color: var(--text-primary) !important;
  }

  .nav-link:hover {
    background: var(--primary-50);
  }

  .theme-switcher {
    margin-left: var(--space-sm);
  }
}

/* ==========================================================================
   Cards & Containers
   ========================================================================== */

.card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: box-shadow var(--transition-fast);
  overflow: hidden;
  /* Performance optimization */
  transform: translate3d(0, 0, 0);
  will-change: transform;
}

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

.card-header {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--space-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.card-body {
  padding: var(--space-lg);
}

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

/* Dark theme card title adjustments */
[data-theme="dark"] .card-title {
  color: var(--text-secondary) !important;
}

[data-theme="dark"] .card-title .text-primary {
  color: var(--primary-400) !important;
}

/* Glass Card Variant */
.card-glass {
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-xl);
}

/* Dropdown menus */
.dropdown-menu {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  /* Performance optimization */
  transform: translate3d(0, 0, 0);
}

.dropdown-item {
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--bg-tertiary);
  color: var(--text-primary);
}

.dropdown-header {
  color: var(--text-muted);
}

.dropdown-item-text {
  color: var(--text-muted);
}

/* Navigation user name styling */
.nav-link span {
  color: var(--text-primary);
  font-weight: 500;
}

/* Notification text improvements */
.dropdown-item .fw-medium {
  color: var(--text-primary) !important;
}

.dropdown-item small.text-muted {
  color: var(--text-muted) !important;
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  font-family: var(--font-family-sans);
  font-weight: 500;
  font-size: var(--font-size-sm);
  line-height: 1.5;
  border-radius: var(--radius-md);
  padding: var(--space-sm) var(--space-lg);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  transition: var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn:hover {
  box-shadow: var(--shadow-lg);
}

/* Primary Button */
.btn-primary {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  color: white;
  border-color: var(--primary-600);
}

.btn-primary:hover {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-800) 100%);
  border-color: var(--primary-700);
  color: white;
}

/* Secondary Button */
.btn-secondary {
  background: var(--bg-tertiary);
  color: var(--text-primary);
  border-color: var(--border-color);
}

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

/* Outline Buttons */
.btn-outline-primary {
  background: transparent;
  color: var(--primary-600);
  border-color: var(--primary-300);
}

.btn-outline-primary:hover {
  background: var(--primary-50);
  color: var(--primary-700);
  border-color: var(--primary-400);
}

.btn-outline-danger {
  background: transparent;
  color: var(--danger-600);
  border-color: var(--danger-300);
}

.btn-outline-danger:hover {
  background: var(--danger-50);
  color: var(--danger-700);
  border-color: var(--danger-400);
}

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

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

/* ==========================================================================
   Forms
   ========================================================================== */

.form-control {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-base);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  transition: var(--transition-fast);
  width: 100%;
  color: var(--text-primary);
}

.form-control:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
  background: var(--bg-primary);
}

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

/* Dark theme form control overrides */
[data-theme="dark"] .form-control {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
}

[data-theme="dark"] .form-control:focus {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  border-color: var(--primary-500) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
}

[data-theme="dark"] .form-control::placeholder {
  color: var(--text-muted) !important;
}

/* Text areas */
[data-theme="dark"] textarea.form-control {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
}

[data-theme="dark"] textarea.form-control:focus {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  border-color: var(--primary-500) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
}

[data-theme="dark"] textarea.form-control::placeholder {
  color: var(--text-muted) !important;
}

.form-select {
  background: var(--bg-primary);
  color: var(--text-primary);
  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 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--space-sm) center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: var(--space-2xl);
}

[data-theme="dark"] .form-select {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  border-color: var(--border-color) !important;
  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='%23a8a8b3' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
}

[data-theme="dark"] .form-select:focus {
  background: var(--bg-primary) !important;
  color: var(--text-primary) !important;
  border-color: var(--primary-500) !important;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1) !important;
}

.input-group {
  display: flex;
  border-radius: var(--radius-md);
  overflow: hidden;
}

.input-group .form-control {
  border-top-right-radius: 0;
  border-bottom-right-radius: 0;
  border-right: 0;
}

.input-group .btn {
  border-top-left-radius: 0;
  border-bottom-left-radius: 0;
}

/* Form labels */
.form-label {
  color: var(--text-primary);
  font-weight: 500;
}

[data-theme="dark"] .form-label {
  color: var(--text-primary) !important;
}

/* Radio Button Styling - Consistent across themes */
input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  width: 16px;
  height: 16px;
  border: 2px solid #6c757d;
  border-radius: 50%;
  background-color: #fff;
  margin-right: var(--space-xs);
  position: relative;
  cursor: pointer;
  transition: all 0.2s ease;
}

input[type="radio"]:checked {
  border-color: #0d6efd;
  background-color: #0d6efd;
}

input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #fff;
}

input[type="radio"]:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(13, 110, 253, 0.25);
}

input[type="radio"]:hover {
  border-color: #0d6efd;
}

/* Radio button labels */
label {
  color: var(--text-primary);
  font-weight: 400;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  margin-bottom: var(--space-xs);
}

label:hover {
  color: var(--primary-600);
}

/* Radio button group styling */
.form-check {
  display: flex;
  align-items: center;
  margin-bottom: var(--space-sm);
}

.form-check-input {
  margin-right: var(--space-sm);
}

/* Checkbox consistency across themes - exclude toggle switches */
[data-theme="dark"] .form-check-input[type="checkbox"]:not(.form-switch .form-check-input) {
  background-color: #fff !important;
  border-color: #6c757d !important;
}

[data-theme="dark"] .form-check-input[type="checkbox"]:not(.form-switch .form-check-input):checked {
  background-color: #0d6efd !important;
  border-color: #0d6efd !important;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20'%3e%3cpath fill='none' stroke='%23fff' stroke-linecap='round' stroke-linejoin='round' stroke-width='3' d='m6 10 3 3 6-6'/%3e%3c/svg%3e") !important;
}

.form-check-label {
  color: var(--text-primary);
  font-weight: 400;
  margin-bottom: 0;
}

/* File Input Styling */
input[type="file"] {
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  background: var(--bg-primary);
  color: var(--text-primary);
  transition: var(--transition-fast);
  width: 100%;
  cursor: pointer;
}

input[type="file"]:hover {
  border-color: var(--primary-400);
  background: var(--bg-secondary);
}

input[type="file"]:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.1);
}

/* File input button styling */
input[type="file"]::-webkit-file-upload-button {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-md);
  margin-right: var(--space-sm);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

input[type="file"]::-webkit-file-upload-button:hover {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-800) 100%);
  transform: translateY(-1px);
}

/* Firefox file input button */
input[type="file"]::file-selector-button {
  background: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-700) 100%);
  color: white;
  border: none;
  border-radius: var(--radius-sm);
  padding: var(--space-xs) var(--space-md);
  margin-right: var(--space-sm);
  font-family: var(--font-family-sans);
  font-size: var(--font-size-sm);
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition-fast);
}

input[type="file"]::file-selector-button:hover {
  background: linear-gradient(135deg, var(--primary-700) 0%, var(--primary-800) 100%);
  transform: translateY(-1px);
}

/* ==========================================================================
   Tables
   ========================================================================== */

.table {
  width: 100%;
  border-collapse: collapse;
  background: transparent;
  color: var(--text-primary);
}

.table th {
  background: var(--bg-secondary);
  color: var(--text-primary);
  font-weight: 600;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-color);
}

.table td {
  padding: var(--space-md);
  border-bottom: 1px solid var(--border-light);
  vertical-align: middle;
  color: var(--text-primary);
}

.table-hover tbody tr:hover {
  background: var(--primary-50);
}

.table-responsive {
  overflow-x: auto;
  border-radius: var(--radius-lg);
}

/* ==========================================================================
   Badges & Status Indicators
   ========================================================================== */

.badge {
  font-size: var(--font-size-xs);
  font-weight: 600;
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-xl);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge.bg-success { background: var(--success-500) !important; color: white; }
.badge.bg-warning { background: var(--warning-500) !important; color: white; }
.badge.bg-danger { background: var(--danger-500) !important; color: white; }
.badge.bg-info { background: var(--info-500) !important; color: white; }
.badge.bg-secondary { background: var(--gray-500) !important; color: white; }

/* ==========================================================================
   Alerts & Messages
   ========================================================================== */

.alert {
  padding: var(--space-md);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.alert-success {
  background: var(--success-50);
  color: var(--success-800);
  border-color: var(--success-200);
}

.alert-warning {
  background: var(--warning-50);
  color: var(--warning-800);
  border-color: var(--warning-200);
}

.alert-danger {
  background: var(--danger-50);
  color: var(--danger-800);
  border-color: var(--danger-200);
}

.alert-info {
  background: var(--info-50);
  color: var(--info-800);
  border-color: var(--info-200);
}

/* Dark theme alert adjustments */
[data-theme="dark"] .alert-success {
  background: var(--success-50);
  color: var(--success-400);
}

[data-theme="dark"] .alert-warning {
  background: var(--warning-50);
  color: var(--warning-400);
}

[data-theme="dark"] .alert-danger {
  background: var(--danger-50);
  color: var(--danger-400);
}

[data-theme="dark"] .alert-info {
  background: var(--info-50);
  color: var(--info-400);
}

/* ==========================================================================
   Dashboard Components
   ========================================================================== */

.dashboard-card {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--card-border);
  transition: var(--transition-normal);
}

.dashboard-card:hover {
  box-shadow: var(--shadow-xl);
}

.stat-card {
  text-decoration: none;
  color: inherit;
  display: block;
}

.stat-card:hover {
  text-decoration: none;
  color: inherit;
}

.time-display {
  background: var(--card-bg);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

/* ==========================================================================
   Utility Classes
   ========================================================================== */

.text-primary { color: var(--primary-600) !important; }
.text-success { color: var(--success-600) !important; }
.text-warning { color: var(--warning-600) !important; }
.text-danger { color: var(--danger-600) !important; }
.text-muted { color: var(--text-muted) !important; }

.bg-primary { background-color: var(--primary-600) !important; }
.bg-light { background-color: var(--bg-secondary) !important; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }

/* ==========================================================================
   Responsive Design
   ========================================================================== */

@media (max-width: 768px) {
  .container {
    padding-left: var(--space-md);
    padding-right: var(--space-md);
  }
  
  .card {
    margin-bottom: var(--space-lg);
  }
  
  .btn {
    width: 100%;
    justify-content: center;
  }
  
  .table-responsive {
    font-size: var(--font-size-sm);
  }

  /* Additional mobile improvements */
  .main-content {
    padding-top: 70px;
  }

  .navbar {
    padding: var(--space-sm) 0;
  }

  /* Improve spacing for mobile */
  .page-content {
    padding: var(--space-md) 0;
  }

  /* Make cards more compact on mobile */
  .card {
    margin-bottom: var(--space-md);
    border-radius: var(--radius-md);
  }

  .card-body {
    padding: var(--space-md);
  }

  .card-header {
    padding: var(--space-md);
  }

  /* Better button spacing */
  .btn:not(:last-child) {
    margin-bottom: var(--space-sm);
  }

  /* Improve form controls */
  .form-control, .form-select {
    font-size: 16px; /* Prevents zoom on iOS */
  }

  /* Better modal handling on mobile */
  .modal-dialog {
    margin: var(--space-sm);
  }

  /* Improve badge visibility */
  .badge {
    font-size: var(--font-size-xs);
    padding: var(--space-xs) var(--space-sm);
  }
}

/* ==========================================================================
   Animations
   ========================================================================== */

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

/* Theme switch animations */
@keyframes moonRotate {
  0% { transform: rotate(0deg) scale(0.8); }
  50% { transform: rotate(180deg) scale(1.1); }
  100% { transform: rotate(360deg) scale(1); }
}

@keyframes sunRotate {
  0% { transform: rotate(0deg) scale(0.8); }
  50% { transform: rotate(180deg) scale(1.1); }
  100% { transform: rotate(360deg) scale(1); }
}

.theme-switch-button.dark-active i {
  animation: moonRotate 0.6s ease-in-out;
}

.theme-switch-button.light-active i {
  animation: sunRotate 0.6s ease-in-out;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--footer-bg);
  backdrop-filter: blur(8px);
  border-top: 1px solid var(--border-color);
  padding: var(--space-lg) 0;
  margin-top: var(--space-2xl);
  color: var(--text-secondary);
}

.footer-links a {
  text-decoration: none;
  transition: var(--transition-fast);
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--primary-600) !important;
}

/* ==========================================================================
   Print Styles
   ========================================================================== */

@media print {
  .navbar,
  .btn,
  .alert,
  .theme-switcher {
    display: none !important;
  }
  
  .card {
    box-shadow: none !important;
    border: 1px solid var(--gray-300);
  }
}