/* ==========================================================================
   ChatterFix CMMS - Professional Enterprise Design System
   Modern, sophisticated styling for industrial applications
   ========================================================================== */

/* Advanced Design System Variables */
:root {
  /* Professional Color Palette */
  --primary-50: #eff6ff;
  --primary-100: #dbeafe;
  --primary-200: #bfdbfe;
  --primary-300: #93c5fd;
  --primary-400: #60a5fa;
  --primary-500: #3b82f6;
  --primary-600: #2563eb;
  --primary-700: #1d4ed8;
  --primary-800: #1e40af;
  --primary-900: #1e3a8a;
  
  /* Sophisticated Neutrals */
  --neutral-50: #fafafa;
  --neutral-100: #f4f4f5;
  --neutral-200: #e4e4e7;
  --neutral-300: #d4d4d8;
  --neutral-400: #a1a1aa;
  --neutral-500: #71717a;
  --neutral-600: #52525b;
  --neutral-700: #3f3f46;
  --neutral-800: #27272a;
  --neutral-900: #18181b;
  
  /* Status Colors - Industrial Grade */
  --success-light: #dcfce7;
  --success: #16a34a;
  --success-dark: #15803d;
  --warning-light: #fef3c7;
  --warning: #d97706;
  --warning-dark: #b45309;
  --danger-light: #fee2e2;
  --danger: #dc2626;
  --danger-dark: #b91c1c;
  --info-light: #dbeafe;
  --info: #2563eb;
  --info-dark: #1d4ed8;
  
  /* Advanced Typography Scale */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, monospace;
  --font-display: 'Cal Sans', 'Inter', sans-serif;
  
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.875rem;     /* 14px */
  --text-base: 1rem;       /* 16px */
  --text-lg: 1.125rem;     /* 18px */
  --text-xl: 1.25rem;      /* 20px */
  --text-2xl: 1.5rem;      /* 24px */
  --text-3xl: 1.875rem;    /* 30px */
  --text-4xl: 2.25rem;     /* 36px */
  
  /* Professional Spacing Scale */
  --space-0: 0;
  --space-1: 0.25rem;      /* 4px */
  --space-2: 0.5rem;       /* 8px */
  --space-3: 0.75rem;      /* 12px */
  --space-4: 1rem;         /* 16px */
  --space-5: 1.25rem;      /* 20px */
  --space-6: 1.5rem;       /* 24px */
  --space-8: 2rem;         /* 32px */
  --space-10: 2.5rem;      /* 40px */
  --space-12: 3rem;        /* 48px */
  --space-16: 4rem;        /* 64px */
  --space-20: 5rem;        /* 80px */
  --space-24: 6rem;        /* 96px */
  
  /* Sophisticated Shadows */
  --shadow-xs: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  --shadow-inner: inset 0 2px 4px 0 rgb(0 0 0 / 0.05);
  
  /* Modern Border Radius */
  --radius-none: 0;
  --radius-sm: 0.25rem;    /* 4px */
  --radius-md: 0.375rem;   /* 6px */
  --radius-lg: 0.5rem;     /* 8px */
  --radius-xl: 0.75rem;    /* 12px */
  --radius-2xl: 1rem;      /* 16px */
  --radius-3xl: 1.5rem;    /* 24px */
  --radius-full: 9999px;
  
  /* Professional Gradients */
  --gradient-brand: linear-gradient(135deg, var(--primary-600) 0%, var(--primary-500) 50%, var(--info-600) 100%);
  --gradient-success: linear-gradient(135deg, var(--success) 0%, #22c55e 100%);
  --gradient-warning: linear-gradient(135deg, var(--warning) 0%, #f59e0b 100%);
  --gradient-danger: linear-gradient(135deg, var(--danger) 0%, #ef4444 100%);
  --gradient-surface: linear-gradient(135deg, #fafafa 0%, #f4f4f5 100%);
  --gradient-dark: linear-gradient(135deg, var(--neutral-800) 0%, var(--neutral-900) 100%);
  
  /* Animation Timing */
  --transition-fast: 150ms ease;
  --transition-base: 200ms ease;
  --transition-slow: 300ms ease;
  --transition-spring: cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Glass Morphism */
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(255, 255, 255, 0.2);
  --glass-blur: blur(20px);
}

/* Modern Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

::selection {
  background: var(--primary-200);
  color: var(--primary-800);
}

/* Enhanced Body */
body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--neutral-800);
  background: linear-gradient(135deg, 
    #667eea 0%, 
    #764ba2 25%, 
    #f093fb 50%, 
    #f5576c 75%, 
    #4facfe 100%);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  min-height: 100vh;
  overflow-x: hidden;
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Professional Layout Containers */
.cmms-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: var(--space-6);
}

.cmms-container-fluid {
  width: 100%;
  padding: var(--space-4) var(--space-6);
}

.cmms-section {
  margin-bottom: var(--space-12);
}

/* Advanced Grid System */
.cmms-grid {
  display: grid;
  gap: var(--space-6);
}

.cmms-grid-1 { grid-template-columns: 1fr; }
.cmms-grid-2 { grid-template-columns: repeat(2, 1fr); }
.cmms-grid-3 { grid-template-columns: repeat(3, 1fr); }
.cmms-grid-4 { grid-template-columns: repeat(4, 1fr); }
.cmms-grid-auto { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.cmms-grid-sidebar { grid-template-columns: 280px 1fr; }

/* Professional Card System */
.cmms-card {
  background: var(--glass-bg);
  backdrop-filter: var(--glass-blur);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.cmms-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--primary-300) 50%, 
    transparent 100%);
}

.cmms-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
  border-color: var(--primary-200);
}

.cmms-card-elevated {
  background: white;
  box-shadow: var(--shadow-2xl);
  border: none;
}

.cmms-card-glass {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
}

.cmms-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--neutral-200);
}

.cmms-card-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--neutral-900);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

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

/* Advanced Button System */
.cmms-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-sm);
  font-weight: 500;
  line-height: 1;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

.cmms-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left var(--transition-slow);
}

.cmms-btn:hover::before {
  left: 100%;
}

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

/* Button Variants */
.cmms-btn-primary {
  background: var(--gradient-brand);
  color: white;
  box-shadow: var(--shadow-md);
}

.cmms-btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.cmms-btn-secondary {
  background: white;
  color: var(--neutral-700);
  border: 1px solid var(--neutral-300);
  box-shadow: var(--shadow-sm);
}

.cmms-btn-secondary:hover {
  background: var(--neutral-50);
  border-color: var(--neutral-400);
  box-shadow: var(--shadow-md);
}

.cmms-btn-success {
  background: var(--gradient-success);
  color: white;
  box-shadow: var(--shadow-md);
}

.cmms-btn-warning {
  background: var(--gradient-warning);
  color: white;
  box-shadow: var(--shadow-md);
}

.cmms-btn-danger {
  background: var(--gradient-danger);
  color: white;
  box-shadow: var(--shadow-md);
}

.cmms-btn-ghost {
  background: transparent;
  color: var(--neutral-600);
  border: 1px solid transparent;
}

.cmms-btn-ghost:hover {
  background: var(--neutral-100);
  color: var(--neutral-800);
}

/* Button Sizes */
.cmms-btn-xs {
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
}

.cmms-btn-sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
}

.cmms-btn-lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--text-lg);
}

.cmms-btn-xl {
  padding: var(--space-5) var(--space-10);
  font-size: var(--text-xl);
}

/* Professional KPI System */
.cmms-kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-6);
  margin-bottom: var(--space-12);
}

.cmms-kpi-card {
  background: white;
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--neutral-200);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.cmms-kpi-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--gradient-brand);
}

.cmms-kpi-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl);
}

.cmms-kpi-card.success::before { background: var(--gradient-success); }
.cmms-kpi-card.warning::before { background: var(--gradient-warning); }
.cmms-kpi-card.danger::before { background: var(--gradient-danger); }

.cmms-kpi-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-4);
}

.cmms-kpi-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--neutral-600);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cmms-kpi-icon {
  width: 48px;
  height: 48px;
  background: var(--gradient-brand);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  color: white;
  box-shadow: var(--shadow-md);
}

.cmms-kpi-value {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: var(--neutral-900);
  line-height: 1;
  margin: var(--space-2) 0;
}

.cmms-kpi-subtitle {
  font-size: var(--text-sm);
  color: var(--neutral-500);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cmms-kpi-trend {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 500;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-full);
}

.cmms-kpi-trend.up {
  background: var(--success-light);
  color: var(--success-dark);
}

.cmms-kpi-trend.down {
  background: var(--danger-light);
  color: var(--danger-dark);
}

/* Advanced Form System */
.cmms-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-5);
}

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

.cmms-field-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
}

.cmms-label {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--neutral-700);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.cmms-label.required::after {
  content: '*';
  color: var(--danger);
}

.cmms-input,
.cmms-select,
.cmms-textarea {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--neutral-300);
  border-radius: var(--radius-lg);
  font-size: var(--text-base);
  font-family: inherit;
  transition: all var(--transition-fast);
  background: white;
  box-shadow: var(--shadow-xs);
}

.cmms-input:focus,
.cmms-select:focus,
.cmms-textarea:focus {
  outline: none;
  border-color: var(--primary-500);
  box-shadow: 0 0 0 3px var(--primary-100);
}

.cmms-textarea {
  resize: vertical;
  min-height: 100px;
}

/* Professional Status System */
.cmms-status {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.cmms-status::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
}

.cmms-status.open {
  background: var(--neutral-100);
  color: var(--neutral-700);
}

.cmms-status.assigned {
  background: var(--info-light);
  color: var(--info-dark);
}

.cmms-status.in-progress {
  background: var(--warning-light);
  color: var(--warning-dark);
}

.cmms-status.completed {
  background: var(--success-light);
  color: var(--success-dark);
}

.cmms-status.cancelled {
  background: var(--danger-light);
  color: var(--danger-dark);
}

/* Priority System */
.cmms-priority {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-xs);
  font-weight: 600;
}

.cmms-priority.urgent {
  color: var(--danger);
}

.cmms-priority.high {
  color: var(--warning);
}

.cmms-priority.medium {
  color: var(--primary-600);
}

.cmms-priority.low {
  color: var(--neutral-500);
}

/* Professional Table System */
.cmms-table-container {
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  border: 1px solid var(--neutral-200);
}

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

.cmms-table th {
  background: var(--neutral-50);
  padding: var(--space-4);
  text-align: left;
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--neutral-700);
  border-bottom: 1px solid var(--neutral-200);
}

.cmms-table td {
  padding: var(--space-4);
  border-bottom: 1px solid var(--neutral-100);
  font-size: var(--text-sm);
  color: var(--neutral-800);
}

.cmms-table tr:hover {
  background: var(--neutral-50);
}

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

/* Professional Dashboard Tabs */
.cmms-tabs {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-2);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--neutral-200);
  margin-bottom: var(--space-6);
  display: flex;
  gap: var(--space-1);
}

.cmms-tab {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: none;
  background: transparent;
  border-radius: var(--radius-lg);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--neutral-600);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.cmms-tab:hover {
  background: var(--neutral-100);
  color: var(--neutral-800);
}

.cmms-tab.active {
  background: var(--gradient-brand);
  color: white;
  box-shadow: var(--shadow-sm);
}

.cmms-tab-count {
  background: rgba(255, 255, 255, 0.2);
  color: inherit;
  border-radius: var(--radius-full);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
  font-weight: 600;
  min-width: 20px;
  text-align: center;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .cmms-grid-sidebar {
    grid-template-columns: 1fr;
  }
  
  .cmms-grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .cmms-container {
    padding: var(--space-4);
  }
  
  .cmms-grid-2,
  .cmms-grid-3,
  .cmms-grid-4 {
    grid-template-columns: 1fr;
  }
  
  .cmms-kpi-grid {
    grid-template-columns: 1fr;
  }
  
  .cmms-tabs {
    flex-direction: column;
  }
  
  .cmms-card {
    padding: var(--space-4);
  }
  
  .cmms-kpi-value {
    font-size: var(--text-3xl);
  }
}

@media (max-width: 640px) {
  .cmms-field-row {
    grid-template-columns: 1fr;
  }
  
  .cmms-btn-lg {
    padding: var(--space-3) var(--space-6);
    font-size: var(--text-base);
  }
}

/* Print Styles */
@media print {
  .cmms-btn,
  .cmms-tabs,
  nav {
    display: none;
  }
  
  .cmms-card {
    border: 1px solid var(--neutral-300);
    box-shadow: none;
    break-inside: avoid;
  }
  
  body {
    background: white;
  }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
  :root {
    --neutral-50: #18181b;
    --neutral-100: #27272a;
    --neutral-200: #3f3f46;
    --neutral-300: #52525b;
    --neutral-400: #71717a;
    --neutral-500: #a1a1aa;
    --neutral-600: #d4d4d8;
    --neutral-700: #e4e4e7;
    --neutral-800: #f4f4f5;
    --neutral-900: #fafafa;
  }
  
  body {
    color: var(--neutral-200);
  }
}

/* Utility Classes */
.cmms-sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.cmms-loading {
  opacity: 0.6;
  pointer-events: none;
}

.cmms-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
}

/* Animation Classes */
.cmms-fade-in {
  animation: fadeIn 0.5s ease-out;
}

.cmms-slide-up {
  animation: slideUp 0.4s ease-out;
}

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

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