/* ============================================================================
   Medical PLM System - Production Design System v3.0
   Professional UI/UX with modern aesthetics and excellent accessibility
   ============================================================================ */

/* ============================================================================
   1. CSS CUSTOM PROPERTIES (Design Tokens)
   ============================================================================ */
:root {
  /* ─────────────────────────────────────────────────────────────────────────
     Color System - Medical Professional Blue with warm accents
     ───────────────────────────────────────────────────────────────────────── */
  
  /* Primary - Professional Blue */
  --color-primary-50: #eef2ff;
  --color-primary-100: #e0e7ff;
  --color-primary-200: #c7d2fe;
  --color-primary-300: #a5b4fc;
  --color-primary-400: #818cf8;
  --color-primary-500: #6366f1;
  --color-primary-600: #4f46e5;
  --color-primary-700: #4338ca;
  --color-primary-800: #3730a3;
  --color-primary-900: #312e81;
  
  /* Neutral - Sophisticated Gray Scale */
  --color-gray-25: #fcfcfd;
  --color-gray-50: #f8fafc;
  --color-gray-100: #f1f5f9;
  --color-gray-200: #e2e8f0;
  --color-gray-300: #cbd5e1;
  --color-gray-400: #94a3b8;
  --color-gray-500: #64748b;
  --color-gray-600: #475569;
  --color-gray-700: #334155;
  --color-gray-800: #1e293b;
  --color-gray-900: #0f172a;
  --color-gray-950: #020617;
  
  /* Success - Emerald */
  --color-success-50: #ecfdf5;
  --color-success-100: #d1fae5;
  --color-success-200: #a7f3d0;
  --color-success-300: #6ee7b7;
  --color-success-400: #34d399;
  --color-success-500: #10b981;
  --color-success-600: #059669;
  --color-success-700: #047857;
  
  /* Warning - Amber */
  --color-warning-50: #fffbeb;
  --color-warning-100: #fef3c7;
  --color-warning-200: #fde68a;
  --color-warning-300: #fcd34d;
  --color-warning-400: #fbbf24;
  --color-warning-500: #f59e0b;
  --color-warning-600: #d97706;
  --color-warning-700: #b45309;
  
  /* Error - Rose */
  --color-error-50: #fff1f2;
  --color-error-100: #ffe4e6;
  --color-error-200: #fecdd3;
  --color-error-300: #fda4af;
  --color-error-400: #fb7185;
  --color-error-500: #f43f5e;
  --color-error-600: #e11d48;
  --color-error-700: #be123c;
  
  /* Info - Sky */
  --color-info-50: #f0f9ff;
  --color-info-100: #e0f2fe;
  --color-info-200: #bae6fd;
  --color-info-500: #0ea5e9;
  --color-info-600: #0284c7;
  
  /* ─────────────────────────────────────────────────────────────────────────
     Typography Scale
     ───────────────────────────────────────────────────────────────────────── */
  --font-family-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
  --font-family-mono: 'JetBrains Mono', 'SF Mono', Monaco, 'Cascadia Code', monospace;
  
  /* Font Sizes with line-height */
  --text-xs: 0.75rem;      /* 12px */
  --text-sm: 0.8125rem;    /* 13px */
  --text-base: 0.875rem;   /* 14px */
  --text-md: 0.9375rem;    /* 15px */
  --text-lg: 1rem;         /* 16px */
  --text-xl: 1.125rem;     /* 18px */
  --text-2xl: 1.25rem;     /* 20px */
  --text-3xl: 1.5rem;      /* 24px */
  --text-4xl: 1.875rem;    /* 30px */
  
  /* Font Weights */
  --font-normal: 400;
  --font-medium: 500;
  --font-semibold: 600;
  --font-bold: 700;
  
  /* Line Heights */
  --leading-none: 1;
  --leading-tight: 1.25;
  --leading-snug: 1.375;
  --leading-normal: 1.5;
  --leading-relaxed: 1.625;
  
  /* Letter Spacing */
  --tracking-tighter: -0.05em;
  --tracking-tight: -0.025em;
  --tracking-normal: 0;
  --tracking-wide: 0.025em;
  
  /* ─────────────────────────────────────────────────────────────────────────
     Spacing Scale (4px base unit)
     ───────────────────────────────────────────────────────────────────────── */
  --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 */
  
  /* ─────────────────────────────────────────────────────────────────────────
     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;
  
  /* ─────────────────────────────────────────────────────────────────────────
     Shadows - Layered for depth
     ───────────────────────────────────────────────────────────────────────── */
  --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);
  
  /* Focus Ring Shadow */
  --shadow-focus: 0 0 0 3px var(--color-primary-100);
  --shadow-focus-error: 0 0 0 3px var(--color-error-100);
  
  /* ─────────────────────────────────────────────────────────────────────────
     Transitions
     ───────────────────────────────────────────────────────────────────────── */
  --ease-out: cubic-bezier(0.33, 1, 0.68, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  
  --duration-75: 75ms;
  --duration-100: 100ms;
  --duration-150: 150ms;
  --duration-200: 200ms;
  --duration-300: 300ms;
  --duration-500: 500ms;
  
  --transition-colors: color var(--duration-150) var(--ease-out), background-color var(--duration-150) var(--ease-out), border-color var(--duration-150) var(--ease-out);
  --transition-transform: transform var(--duration-200) var(--ease-spring);
  --transition-shadow: box-shadow var(--duration-200) var(--ease-out);
  --transition-all: all var(--duration-200) var(--ease-out);
  
  /* ─────────────────────────────────────────────────────────────────────────
     Layout Dimensions
     ───────────────────────────────────────────────────────────────────────── */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --header-height: 64px;
  --content-max-width: 1440px;
  
  /* ─────────────────────────────────────────────────────────────────────────
     Z-Index Scale
     ───────────────────────────────────────────────────────────────────────── */
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-fixed: 300;
  --z-modal-backdrop: 400;
  --z-modal: 500;
  --z-tooltip: 600;
  --z-toast: 700;
}

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

html {
  -webkit-text-size-adjust: 100%;
  font-feature-settings: 'cv02', 'cv03', 'cv04', 'cv11';
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-gray-900);
  background-color: var(--color-gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

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

:focus:not(:focus-visible) {
  outline: none;
}

/* Selection */
::selection {
  background-color: var(--color-primary-100);
  color: var(--color-primary-900);
}

/* Links */
a {
  color: var(--color-primary-600);
  text-decoration: none;
  transition: var(--transition-colors);
}

a:hover {
  color: var(--color-primary-700);
}

/* Images */
img, svg {
  display: block;
  max-width: 100%;
}

/* ============================================================================
   3. TYPOGRAPHY
   ============================================================================ */
h1, h2, h3, h4, h5, h6 {
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-gray-900);
}

.text-display {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  letter-spacing: var(--tracking-tighter);
  line-height: 1.2;
}

.text-heading-lg {
  font-size: var(--text-2xl);
  font-weight: var(--font-semibold);
}

.text-heading {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
}

.text-heading-sm {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
}

.text-body-lg {
  font-size: var(--text-md);
  line-height: var(--leading-relaxed);
}

.text-body {
  font-size: var(--text-base);
  line-height: var(--leading-normal);
}

.text-body-sm {
  font-size: var(--text-sm);
  line-height: var(--leading-normal);
}

.text-caption {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  line-height: var(--leading-normal);
}

.text-mono {
  font-family: var(--font-family-mono);
  font-size: 0.9em;
}

/* ============================================================================
   4. LOADING & SKELETON STATES
   ============================================================================ */
.loading-screen {
  position: fixed;
  inset: 0;
  background: white;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 9999;
}

.loading-spinner {
  width: 44px;
  height: 44px;
  border: 3px solid var(--color-gray-200);
  border-top-color: var(--color-primary-600);
  border-radius: var(--radius-full);
  animation: spin 0.8s linear infinite;
}

.loading-spinner-sm {
  width: 20px;
  height: 20px;
  border-width: 2px;
}

.loading-spinner-lg {
  width: 56px;
  height: 56px;
  border-width: 4px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Skeleton Loading */
.skeleton {
  background: linear-gradient(
    90deg,
    var(--color-gray-200) 0%,
    var(--color-gray-100) 50%,
    var(--color-gray-200) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.skeleton-text {
  height: 1em;
  margin-bottom: 0.5em;
}

.skeleton-text:last-child {
  width: 70%;
}

.skeleton-avatar {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
}

.skeleton-card {
  height: 120px;
}

/* ============================================================================
   5. LOGIN SCREEN
   ============================================================================ */
#login-screen {
  background: linear-gradient(135deg, #4f46e5 0%, #6366f1 50%, #818cf8 100%);
  min-height: 100vh;
  position: relative;
  overflow: hidden;
}

#login-screen::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: 
    radial-gradient(circle at 20% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(255, 255, 255, 0.08) 0%, transparent 50%),
    radial-gradient(circle at 40% 40%, rgba(255, 255, 255, 0.05) 0%, transparent 30%);
  animation: float 20s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-20px) rotate(5deg); }
}

.login-card {
  position: relative;
  background: white;
  width: 100%;
  max-width: 420px;
  padding: var(--space-10) var(--space-8);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
}

.login-logo {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-6);
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-600) 100%);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 32px;
  box-shadow: 0 8px 24px -4px rgba(99, 102, 241, 0.4);
}

.login-title {
  text-align: center;
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-gray-900);
  margin-bottom: var(--space-2);
  letter-spacing: var(--tracking-tight);
}

.login-subtitle {
  text-align: center;
  font-size: var(--text-base);
  color: var(--color-gray-500);
  margin-bottom: var(--space-8);
}

/* ============================================================================
   6. FORM ELEMENTS
   ============================================================================ */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-gray-700);
  margin-bottom: var(--space-2);
}

.form-label .required {
  color: var(--color-error-500);
}

.form-label .optional {
  font-weight: var(--font-normal);
  color: var(--color-gray-400);
  font-size: var(--text-xs);
}

.form-input {
  width: 100%;
  height: 42px;
  padding: 0 var(--space-4);
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--color-gray-900);
  background-color: white;
  border: 1.5px solid var(--color-gray-300);
  border-radius: var(--radius-lg);
  transition: var(--transition-all);
}

.form-input::placeholder {
  color: var(--color-gray-400);
}

.form-input:hover:not(:disabled) {
  border-color: var(--color-gray-400);
}

.form-input:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-focus);
}

.form-input:disabled {
  background-color: var(--color-gray-100);
  color: var(--color-gray-500);
  cursor: not-allowed;
}

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

.form-input.error:focus {
  box-shadow: var(--shadow-focus-error);
}

/* Textarea */
textarea.form-input {
  height: auto;
  min-height: 100px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
  line-height: var(--leading-relaxed);
}

/* Select */
select.form-input {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2364748b'%3e%3cpath fill-rule='evenodd' d='M5.23 7.21a.75.75 0 011.06.02L10 11.168l3.71-3.938a.75.75 0 111.08 1.04l-4.25 4.5a.75.75 0 01-1.08 0l-4.25-4.5a.75.75 0 01.02-1.06z' clip-rule='evenodd'/%3e%3c/svg%3e");
  background-position: right 12px center;
  background-repeat: no-repeat;
  background-size: 18px;
  padding-right: 40px;
}

/* Form Helper Text */
.form-helper {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--text-xs);
  color: var(--color-error-600);
  margin-top: var(--space-1);
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

/* Input Group */
.input-group {
  display: flex;
  align-items: stretch;
}

.input-group .form-input {
  flex: 1;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.input-group .btn {
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  border-left: none;
}

/* Checkbox & Radio */
.form-check {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
}

.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-primary-600);
  cursor: pointer;
}

.form-check-label {
  font-size: var(--text-base);
  color: var(--color-gray-700);
  user-select: none;
}

/* Form Row */
.form-row {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (max-width: 640px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ============================================================================
   7. BUTTONS
   ============================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  height: 40px;
  padding: 0 var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  font-family: inherit;
  line-height: 1;
  white-space: nowrap;
  border-radius: var(--radius-lg);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: var(--transition-all);
  text-decoration: none;
}

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

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

/* Button Sizes */
.btn-xs {
  height: 28px;
  padding: 0 var(--space-2);
  font-size: var(--text-xs);
  gap: var(--space-1);
}

.btn-sm {
  height: 34px;
  padding: 0 var(--space-3);
  font-size: var(--text-sm);
}

.btn-lg {
  height: 48px;
  padding: 0 var(--space-6);
  font-size: var(--text-lg);
}

.btn-icon {
  width: 40px;
  padding: 0;
}

.btn-icon.btn-sm {
  width: 34px;
}

.btn-icon.btn-xs {
  width: 28px;
}

/* Button Variants */
.btn-primary {
  background: linear-gradient(180deg, var(--color-primary-500) 0%, var(--color-primary-600) 100%);
  color: white;
  border-color: var(--color-primary-600);
  box-shadow: 0 1px 2px 0 rgba(79, 70, 229, 0.2);
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(180deg, var(--color-primary-600) 0%, var(--color-primary-700) 100%);
  border-color: var(--color-primary-700);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px -2px rgba(79, 70, 229, 0.3);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
}

.btn-secondary {
  background: white;
  color: var(--color-gray-700);
  border-color: var(--color-gray-300);
  box-shadow: var(--shadow-xs);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--color-gray-50);
  border-color: var(--color-gray-400);
  color: var(--color-gray-900);
}

.btn-ghost {
  background: transparent;
  color: var(--color-gray-600);
  border: none;
  height: auto;
  padding: var(--space-2);
}

.btn-ghost:hover:not(:disabled) {
  background: var(--color-gray-100);
  color: var(--color-gray-900);
}

.btn-danger {
  background: linear-gradient(180deg, var(--color-error-500) 0%, var(--color-error-600) 100%);
  color: white;
  border-color: var(--color-error-600);
}

.btn-danger:hover:not(:disabled) {
  background: linear-gradient(180deg, var(--color-error-600) 0%, var(--color-error-700) 100%);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px -2px rgba(225, 29, 72, 0.3);
}

.btn-success {
  background: linear-gradient(180deg, var(--color-success-500) 0%, var(--color-success-600) 100%);
  color: white;
  border-color: var(--color-success-600);
}

.btn-success:hover:not(:disabled) {
  background: linear-gradient(180deg, var(--color-success-600) 0%, var(--color-success-700) 100%);
  transform: translateY(-1px);
}

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

.btn-outline:hover:not(:disabled) {
  background: var(--color-primary-50);
  border-color: var(--color-primary-400);
}

/* Button Group */
.btn-group {
  display: flex;
  gap: var(--space-2);
}

/* ============================================================================
   8. SIDEBAR NAVIGATION
   ============================================================================ */
#sidebar {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--sidebar-width);
  background: linear-gradient(180deg, var(--color-gray-900) 0%, var(--color-gray-950) 100%);
  z-index: var(--z-fixed);
  display: flex;
  flex-direction: column;
  transition: transform var(--duration-300) var(--ease-out);
  overflow: hidden;
}

@media (max-width: 1023px) {
  #sidebar {
    transform: translateX(-100%);
  }
  
  #sidebar.show {
    transform: translateX(0);
  }
  
  .sidebar-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: calc(var(--z-fixed) - 1);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-all);
  }
  
  .sidebar-backdrop.show {
    opacity: 1;
    visibility: visible;
  }
}

.sidebar-header {
  padding: var(--space-5);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  flex-shrink: 0;
}

.sidebar-logo {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-600) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 18px;
  flex-shrink: 0;
  box-shadow: 0 4px 12px -2px rgba(99, 102, 241, 0.4);
}

.sidebar-brand h1 {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  color: white;
  margin: 0;
  line-height: var(--leading-tight);
}

.sidebar-brand span {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  font-weight: var(--font-normal);
}

/* Navigation Menu */
#nav-menu {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-4) 0;
  scrollbar-width: thin;
  scrollbar-color: var(--color-gray-700) transparent;
}

#nav-menu::-webkit-scrollbar {
  width: 4px;
}

#nav-menu::-webkit-scrollbar-thumb {
  background: var(--color-gray-700);
  border-radius: 2px;
}

.nav-section {
  margin-bottom: var(--space-2);
}

.nav-section-title {
  padding: var(--space-2) var(--space-5) var(--space-2);
  font-size: 0.6875rem;
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-gray-500);
}

.sidebar-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-5);
  color: var(--color-gray-400);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  text-decoration: none;
  transition: var(--transition-all);
  border-left: 3px solid transparent;
  margin: 1px 0;
  position: relative;
}

.sidebar-item i {
  width: 20px;
  text-align: center;
  font-size: 1rem;
  transition: var(--transition-colors);
}

.sidebar-item:hover {
  color: white;
  background: rgba(255, 255, 255, 0.06);
}

.sidebar-item.active {
  color: white;
  background: rgba(99, 102, 241, 0.15);
  border-left-color: var(--color-primary-500);
}

.sidebar-item.active i {
  color: var(--color-primary-400);
}

/* Admin Badge */
.sidebar-item.admin-only::after {
  content: 'Admin';
  position: absolute;
  right: var(--space-4);
  font-size: 0.625rem;
  padding: 2px 6px;
  background: var(--color-gray-800);
  color: var(--color-gray-500);
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================================================
   9. MAIN CONTENT AREA
   ============================================================================ */
main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  background: var(--color-gray-50);
  display: flex;
  flex-direction: column;
}

@media (max-width: 1023px) {
  main {
    margin-left: 0;
  }
}

/* Top Header */
.top-header {
  position: sticky;
  top: 0;
  height: var(--header-height);
  background: white;
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--space-6);
  gap: var(--space-4);
  z-index: var(--z-sticky);
  flex-shrink: 0;
}

/* Global Search */
.search-container {
  flex: 1;
  max-width: 480px;
}

.search-wrapper {
  position: relative;
}

.search-wrapper i {
  position: absolute;
  left: var(--space-4);
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-gray-400);
  font-size: 14px;
  pointer-events: none;
}

.search-input {
  width: 100%;
  height: 40px;
  padding: 0 var(--space-4) 0 var(--space-10);
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--color-gray-900);
  background: var(--color-gray-100);
  border: 1.5px solid transparent;
  border-radius: var(--radius-xl);
  transition: var(--transition-all);
}

.search-input::placeholder {
  color: var(--color-gray-400);
}

.search-input:hover {
  background: var(--color-gray-50);
  border-color: var(--color-gray-300);
}

.search-input:focus {
  outline: none;
  background: white;
  border-color: var(--color-primary-500);
  box-shadow: var(--shadow-focus);
}

/* User Menu */
.user-menu {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.user-avatar {
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--color-primary-500) 0%, var(--color-primary-600) 100%);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  font-weight: var(--font-semibold);
  cursor: pointer;
  transition: var(--transition-transform);
}

.user-avatar:hover {
  transform: scale(1.05);
}

.user-info {
  text-align: right;
}

.user-name {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  margin: 0;
  line-height: var(--leading-tight);
}

.user-role {
  font-size: var(--text-xs);
  color: var(--color-gray-500);
  margin: 0;
}

/* Page Content */
#page-content {
  flex: 1;
  padding: var(--space-6);
  max-width: var(--content-max-width);
  width: 100%;
  margin: 0 auto;
}

@media (min-width: 1440px) {
  #page-content {
    padding: var(--space-8);
  }
}

@media (max-width: 640px) {
  #page-content {
    padding: var(--space-4);
  }
}

/* ============================================================================
   10. PAGE HEADERS
   ============================================================================ */
.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-6);
  gap: var(--space-4);
  flex-wrap: wrap;
}

.page-header-content {
  flex: 1;
  min-width: 200px;
}

.page-title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: var(--color-gray-900);
  margin: 0 0 var(--space-1);
  letter-spacing: var(--tracking-tight);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.page-title i {
  color: var(--color-primary-500);
  font-size: 0.85em;
}

.page-subtitle {
  font-size: var(--text-base);
  color: var(--color-gray-500);
  margin: 0;
}

.page-actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-wrap: wrap;
}

/* Breadcrumb */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  margin-bottom: var(--space-2);
}

.breadcrumb a {
  color: var(--color-gray-500);
}

.breadcrumb a:hover {
  color: var(--color-primary-600);
}

.breadcrumb-separator {
  color: var(--color-gray-300);
}

/* ============================================================================
   11. CARDS
   ============================================================================ */
.card {
  background: white;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-sm);
  transition: var(--transition-shadow);
  overflow: hidden;
}

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

.card-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-gray-100);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.card-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  margin: 0;
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.card-title i {
  color: var(--color-primary-500);
  font-size: 0.9em;
}

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

.card-footer {
  padding: var(--space-4) var(--space-6);
  background: var(--color-gray-50);
  border-top: 1px solid var(--color-gray-100);
}

/* Stat Cards */
.stat-card {
  background: white;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  padding: var(--space-5) var(--space-6);
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-4);
  transition: var(--transition-all);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary-500);
  opacity: 0;
  transition: var(--transition-all);
}

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

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

.stat-card.alert {
  border-color: var(--color-error-200);
  background: linear-gradient(135deg, var(--color-error-50) 0%, white 100%);
}

.stat-card.alert::before {
  background: var(--color-error-500);
  opacity: 1;
}

.stat-content {
  flex: 1;
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  font-weight: var(--font-medium);
  margin-bottom: var(--space-1);
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-gray-900);
  line-height: var(--leading-none);
  font-feature-settings: 'tnum';
}

.stat-value.alert {
  color: var(--color-error-600);
}

.stat-trend {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  margin-top: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.stat-trend.up {
  color: var(--color-success-600);
}

.stat-trend.down {
  color: var(--color-error-600);
}

.stat-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.stat-icon.blue {
  background: var(--color-primary-100);
  color: var(--color-primary-600);
}

.stat-icon.green {
  background: var(--color-success-100);
  color: var(--color-success-600);
}

.stat-icon.purple {
  background: #ede9fe;
  color: #7c3aed;
}

.stat-icon.red {
  background: var(--color-error-100);
  color: var(--color-error-600);
}

.stat-icon.yellow {
  background: var(--color-warning-100);
  color: var(--color-warning-600);
}

.stat-icon.sky {
  background: var(--color-info-100);
  color: var(--color-info-600);
}

/* ============================================================================
   12. TABLES
   ============================================================================ */
.table-container {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  background: white;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-base);
}

.data-table th {
  text-align: left;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-gray-500);
  background: var(--color-gray-50);
  border-bottom: 1px solid var(--color-gray-200);
  position: sticky;
  top: 0;
  z-index: 1;
  white-space: nowrap;
}

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

.data-table th.sortable:hover {
  color: var(--color-gray-700);
  background: var(--color-gray-100);
}

.data-table th.sortable i {
  margin-left: var(--space-1);
  opacity: 0.5;
}

.data-table th.sorted {
  color: var(--color-primary-600);
}

.data-table td {
  padding: var(--space-4);
  color: var(--color-gray-700);
  border-bottom: 1px solid var(--color-gray-100);
  vertical-align: middle;
}

.data-table tbody tr {
  transition: var(--transition-colors);
}

.data-table tbody tr:hover {
  background: var(--color-gray-50);
}

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

.data-table tbody tr.clickable {
  cursor: pointer;
}

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

.data-table tbody tr.selected {
  background: var(--color-primary-50);
}

/* Table Cell Variants */
.data-table .text-mono {
  font-family: var(--font-family-mono);
  font-size: var(--text-sm);
  color: var(--color-gray-600);
}

.data-table .text-link {
  color: var(--color-primary-600);
  font-weight: var(--font-medium);
  cursor: pointer;
}

.data-table .text-link:hover {
  color: var(--color-primary-700);
  text-decoration: underline;
}

.data-table .text-bold {
  color: var(--color-gray-900);
  font-weight: var(--font-semibold);
}

.data-table .text-muted {
  color: var(--color-gray-400);
}

/* Table Actions */
.data-table .actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  justify-content: flex-end;
}

.data-table .action-btn {
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--color-gray-400);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-all);
}

.data-table .action-btn:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.data-table .action-btn.view:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

.data-table .action-btn.edit:hover {
  background: var(--color-info-50);
  color: var(--color-info-600);
}

.data-table .action-btn.delete:hover {
  background: var(--color-error-50);
  color: var(--color-error-600);
}

/* Empty Table State */
.table-empty {
  padding: var(--space-12) var(--space-6);
  text-align: center;
}

/* ============================================================================
   13. BADGES
   ============================================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 4px 10px;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-full);
  white-space: nowrap;
  line-height: 1;
}

.badge i {
  font-size: 0.75em;
}

.badge-sm {
  padding: 2px 8px;
  font-size: 0.6875rem;
}

.badge-lg {
  padding: 6px 14px;
  font-size: var(--text-sm);
}

/* Status Badges */
.badge-development { 
  background: var(--color-warning-100); 
  color: var(--color-warning-700); 
}
.badge-prototype { 
  background: #fae8ff; 
  color: #a21caf; 
}
.badge-pilot { 
  background: var(--color-info-100); 
  color: var(--color-info-600); 
}
.badge-production { 
  background: var(--color-success-100); 
  color: var(--color-success-700); 
}
.badge-discontinued { 
  background: var(--color-gray-100); 
  color: var(--color-gray-600); 
}
.badge-recalled { 
  background: var(--color-error-100); 
  color: var(--color-error-700); 
}
.badge-testing { 
  background: #e0e7ff; 
  color: #4338ca; 
}
.badge-released { 
  background: var(--color-success-100); 
  color: var(--color-success-700); 
}
.badge-deprecated { 
  background: var(--color-gray-100); 
  color: var(--color-gray-500); 
}

/* ECR Status */
.badge-draft { 
  background: var(--color-gray-100); 
  color: var(--color-gray-600); 
}
.badge-submitted { 
  background: var(--color-info-100); 
  color: var(--color-info-600); 
}
.badge-review { 
  background: var(--color-warning-100); 
  color: var(--color-warning-700); 
}
.badge-approved { 
  background: var(--color-success-100); 
  color: var(--color-success-700); 
}
.badge-rejected { 
  background: var(--color-error-100); 
  color: var(--color-error-700); 
}
.badge-implemented { 
  background: #ede9fe; 
  color: #6d28d9; 
}
.badge-closed { 
  background: var(--color-gray-100); 
  color: var(--color-gray-500); 
}

/* Priority */
.badge-critical { 
  background: var(--color-error-100); 
  color: var(--color-error-700); 
}
.badge-high { 
  background: #fff7ed; 
  color: #c2410c; 
}
.badge-medium { 
  background: var(--color-warning-100); 
  color: var(--color-warning-700); 
}
.badge-low { 
  background: var(--color-success-100); 
  color: var(--color-success-700); 
}

/* Platform */
.badge-ios { 
  background: var(--color-gray-900); 
  color: white; 
}
.badge-android { 
  background: #dcfce7; 
  color: #166534; 
}
.badge-windows { 
  background: var(--color-info-100); 
  color: var(--color-info-600); 
}
.badge-macos { 
  background: var(--color-gray-100); 
  color: var(--color-gray-700); 
}
.badge-web { 
  background: #ede9fe; 
  color: #6d28d9; 
}

/* Compatibility */
.badge-compatible { 
  background: var(--color-success-100); 
  color: var(--color-success-700); 
}
.badge-conditional { 
  background: var(--color-warning-100); 
  color: var(--color-warning-700); 
}
.badge-incompatible { 
  background: var(--color-error-100); 
  color: var(--color-error-700); 
}

/* Supplier Status */
.badge-qualified { 
  background: var(--color-success-100); 
  color: var(--color-success-700); 
}
.badge-pending { 
  background: var(--color-info-100); 
  color: var(--color-info-600); 
}
.badge-disqualified { 
  background: var(--color-error-100); 
  color: var(--color-error-700); 
}

/* Production Status */
.badge-planned { 
  background: var(--color-gray-100); 
  color: var(--color-gray-600); 
}
.badge-in_progress { 
  background: var(--color-info-100); 
  color: var(--color-info-600); 
}
.badge-completed { 
  background: var(--color-success-100); 
  color: var(--color-success-700); 
}
.badge-cancelled { 
  background: var(--color-error-100); 
  color: var(--color-error-700); 
}

/* ============================================================================
   14. MODALS
   ============================================================================ */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-6);
  z-index: var(--z-modal-backdrop);
  animation: fadeIn var(--duration-150) var(--ease-out);
}

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

.modal {
  background: white;
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  width: 100%;
  max-width: 560px;
  max-height: calc(100vh - 48px);
  display: flex;
  flex-direction: column;
  animation: slideUp var(--duration-200) var(--ease-spring);
  overflow: hidden;
}

@keyframes slideUp {
  from { 
    opacity: 0; 
    transform: translateY(16px) scale(0.98); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0) scale(1); 
  }
}

.modal-sm { max-width: 400px; }
.modal-lg { max-width: 720px; }
.modal-xl { max-width: 900px; }
.modal-full { max-width: calc(100vw - 48px); }

.modal-header {
  padding: var(--space-5) var(--space-6);
  border-bottom: 1px solid var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-shrink: 0;
}

.modal-title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  margin: 0;
}

.modal-close {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  color: var(--color-gray-400);
  background: transparent;
  border: none;
  cursor: pointer;
  transition: var(--transition-all);
}

.modal-close:hover {
  background: var(--color-gray-100);
  color: var(--color-gray-700);
}

.modal-body {
  padding: var(--space-6);
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: var(--space-4) var(--space-6);
  border-top: 1px solid var(--color-gray-200);
  display: flex;
  justify-content: flex-end;
  gap: var(--space-3);
  flex-shrink: 0;
  background: var(--color-gray-50);
}

/* ============================================================================
   15. TOASTS
   ============================================================================ */
#toast-container {
  position: fixed;
  top: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  max-width: 400px;
  pointer-events: none;
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  border-left: 4px solid;
  animation: toastSlideIn var(--duration-300) var(--ease-spring);
  pointer-events: auto;
}

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

.toast-success { border-color: var(--color-success-500); }
.toast-error { border-color: var(--color-error-500); }
.toast-warning { border-color: var(--color-warning-500); }
.toast-info { border-color: var(--color-primary-500); }

.toast-icon {
  width: 24px;
  height: 24px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  flex-shrink: 0;
}

.toast-success .toast-icon { 
  background: var(--color-success-100); 
  color: var(--color-success-600); 
}
.toast-error .toast-icon { 
  background: var(--color-error-100); 
  color: var(--color-error-600); 
}
.toast-warning .toast-icon { 
  background: var(--color-warning-100); 
  color: var(--color-warning-600); 
}
.toast-info .toast-icon { 
  background: var(--color-primary-100); 
  color: var(--color-primary-600); 
}

.toast-content {
  flex: 1;
  min-width: 0;
}

.toast-title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  margin: 0 0 2px;
}

.toast-message {
  font-size: var(--text-sm);
  color: var(--color-gray-600);
  margin: 0;
  line-height: var(--leading-snug);
}

.toast-close {
  color: var(--color-gray-400);
  cursor: pointer;
  padding: var(--space-1);
  border-radius: var(--radius-md);
  transition: var(--transition-colors);
  flex-shrink: 0;
}

.toast-close:hover {
  color: var(--color-gray-600);
  background: var(--color-gray-100);
}

/* ============================================================================
   16. FILTERS & SEARCH BARS
   ============================================================================ */
.filter-bar {
  background: white;
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-gray-200);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-5);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
}

.filter-bar .form-input {
  height: 38px;
}

.filter-input {
  flex: 1;
  min-width: 200px;
  max-width: 320px;
}

.filter-select {
  min-width: 150px;
  max-width: 200px;
}

.filter-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  margin-left: auto;
}

/* Filter Tags */
.filter-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin-top: var(--space-3);
}

.filter-tag {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-2);
  background: var(--color-primary-50);
  color: var(--color-primary-700);
  border-radius: var(--radius-md);
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
}

.filter-tag button {
  background: none;
  border: none;
  color: var(--color-primary-400);
  cursor: pointer;
  padding: 0;
  line-height: 1;
}

.filter-tag button:hover {
  color: var(--color-primary-700);
}

/* ============================================================================
   17. EMPTY STATES
   ============================================================================ */
.empty-state {
  text-align: center;
  padding: var(--space-12) var(--space-6);
}

.empty-state-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto var(--space-5);
  background: var(--color-gray-100);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  color: var(--color-gray-400);
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  margin: 0 0 var(--space-2);
}

.empty-state-text {
  font-size: var(--text-base);
  color: var(--color-gray-500);
  margin: 0 0 var(--space-6);
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================================
   18. DETAIL VIEWS & INFO BOXES
   ============================================================================ */
.detail-section {
  background: var(--color-gray-50);
  border-radius: var(--radius-xl);
  padding: var(--space-5);
  margin-bottom: var(--space-4);
}

.detail-section-title {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-gray-800);
  margin: 0 0 var(--space-4);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.detail-section-title i {
  color: var(--color-primary-500);
}

.detail-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

@media (max-width: 640px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
}

.detail-item {
  font-size: var(--text-base);
}

.detail-label {
  color: var(--color-gray-500);
  font-size: var(--text-sm);
  margin-bottom: var(--space-1);
}

.detail-value {
  color: var(--color-gray-900);
  font-weight: var(--font-medium);
}

/* Info Boxes */
.info-box {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4);
  background: var(--color-info-50);
  border-radius: var(--radius-xl);
  border-left: 4px solid var(--color-info-500);
}

.info-box-icon {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-info-600);
  flex-shrink: 0;
}

.info-box-content {
  flex: 1;
}

.info-box-title {
  font-weight: var(--font-semibold);
  color: var(--color-info-800);
  margin-bottom: var(--space-1);
}

.info-box-text {
  font-size: var(--text-sm);
  color: var(--color-info-700);
}

.info-box.warning {
  background: var(--color-warning-50);
  border-color: var(--color-warning-500);
}

.info-box.warning .info-box-icon { color: var(--color-warning-600); }
.info-box.warning .info-box-title { color: var(--color-warning-800); }
.info-box.warning .info-box-text { color: var(--color-warning-700); }

.info-box.success {
  background: var(--color-success-50);
  border-color: var(--color-success-500);
}

.info-box.success .info-box-icon { color: var(--color-success-600); }
.info-box.success .info-box-title { color: var(--color-success-800); }
.info-box.success .info-box-text { color: var(--color-success-700); }

.info-box.error {
  background: var(--color-error-50);
  border-color: var(--color-error-500);
}

.info-box.error .info-box-icon { color: var(--color-error-600); }
.info-box.error .info-box-title { color: var(--color-error-800); }
.info-box.error .info-box-text { color: var(--color-error-700); }

/* ============================================================================
   19. CHARTS
   ============================================================================ */
.chart-container {
  position: relative;
  height: 280px;
  padding: var(--space-2);
}

.chart-container-sm {
  height: 200px;
}

.chart-container-lg {
  height: 360px;
}

/* ============================================================================
   20. LIFECYCLE FLOW VISUALIZATION
   ============================================================================ */
.lifecycle-flow {
  padding: var(--space-4) 0;
}

.lifecycle-stages {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.lifecycle-stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  cursor: pointer;
  transition: var(--transition-all);
  padding: var(--space-3);
  border-radius: var(--radius-xl);
  min-width: 100px;
}

.lifecycle-stage:hover {
  transform: translateY(-4px);
  background: var(--color-gray-50);
}

.lifecycle-stage.active {
  background: var(--color-primary-50);
}

.lifecycle-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  margin-bottom: var(--space-2);
  transition: var(--transition-all);
  box-shadow: var(--shadow-sm);
}

.lifecycle-stage:hover .lifecycle-icon {
  transform: scale(1.1);
  box-shadow: var(--shadow-md);
}

.lifecycle-label {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-gray-600);
  margin-bottom: var(--space-1);
  text-align: center;
}

.lifecycle-count {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  font-family: var(--font-family-mono);
  color: var(--color-gray-900);
}

.lifecycle-arrow {
  color: var(--color-gray-300);
  font-size: 20px;
  padding: 0 var(--space-1);
}

@media (max-width: 768px) {
  .lifecycle-stage {
    min-width: 80px;
    padding: var(--space-2);
  }
  
  .lifecycle-icon {
    width: 44px;
    height: 44px;
    font-size: 1rem;
  }
  
  .lifecycle-count {
    font-size: var(--text-lg);
  }
  
  .lifecycle-arrow {
    display: none;
  }
}

/* ============================================================================
   21. NOTIFICATIONS
   ============================================================================ */
.notification-bell {
  position: relative;
}

.notification-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  min-width: 18px;
  height: 18px;
  background: var(--color-error-500);
  color: white;
  font-size: 0.65rem;
  font-weight: var(--font-bold);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0 4px;
  border: 2px solid white;
}

.notification-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 380px;
  max-height: 520px;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border: 1px solid var(--color-gray-200);
  z-index: var(--z-dropdown);
  overflow: hidden;
  animation: dropdownSlide var(--duration-200) var(--ease-out);
}

@keyframes dropdownSlide {
  from { 
    opacity: 0; 
    transform: translateY(-8px); 
  }
  to { 
    opacity: 1; 
    transform: translateY(0); 
  }
}

.notification-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-gray-100);
}

.notification-header h4 {
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  color: var(--color-gray-900);
  margin: 0;
}

.notification-list {
  max-height: 380px;
  overflow-y: auto;
}

.notification-item {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-bottom: 1px solid var(--color-gray-50);
  cursor: pointer;
  transition: var(--transition-colors);
}

.notification-item:hover {
  background: var(--color-gray-50);
}

.notification-item:last-child {
  border-bottom: none;
}

.notification-item.unread {
  background: var(--color-primary-50);
}

.notification-item.unread:hover {
  background: var(--color-primary-100);
}

.notification-icon-wrapper {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.notification-content {
  flex: 1;
  min-width: 0;
}

.notification-title {
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-gray-900);
  margin-bottom: 2px;
}

.notification-message {
  font-size: var(--text-sm);
  color: var(--color-gray-500);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.notification-time {
  font-size: var(--text-xs);
  color: var(--color-gray-400);
  margin-top: var(--space-1);
}

.notification-footer {
  padding: var(--space-3) var(--space-5);
  text-align: center;
  border-top: 1px solid var(--color-gray-100);
  background: var(--color-gray-50);
}

/* ============================================================================
   22. TABS
   ============================================================================ */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--color-gray-200);
  margin-bottom: var(--space-5);
}

.tab {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-gray-500);
  background: none;
  border: none;
  cursor: pointer;
  position: relative;
  transition: var(--transition-colors);
}

.tab:hover {
  color: var(--color-gray-700);
}

.tab.active {
  color: var(--color-primary-600);
}

.tab.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-primary-600);
}

/* Tab Panels */
.tab-panel {
  display: none;
}

.tab-panel.active {
  display: block;
  animation: fadeIn var(--duration-200) var(--ease-out);
}

/* ============================================================================
   23. PROGRESS INDICATORS
   ============================================================================ */
.progress-bar {
  height: 8px;
  background: var(--color-gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--color-primary-500), var(--color-primary-600));
  border-radius: var(--radius-full);
  transition: width var(--duration-300) var(--ease-out);
}

.progress-bar-fill.success {
  background: linear-gradient(90deg, var(--color-success-500), var(--color-success-600));
}

.progress-bar-fill.warning {
  background: linear-gradient(90deg, var(--color-warning-500), var(--color-warning-600));
}

.progress-bar-fill.error {
  background: linear-gradient(90deg, var(--color-error-500), var(--color-error-600));
}

/* ============================================================================
   24. TOOLTIPS
   ============================================================================ */
[data-tooltip] {
  position: relative;
}

[data-tooltip]::before {
  content: attr(data-tooltip);
  position: absolute;
  bottom: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%);
  padding: var(--space-2) var(--space-3);
  background: var(--color-gray-900);
  color: white;
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  white-space: nowrap;
  opacity: 0;
  visibility: hidden;
  transition: var(--transition-all);
  z-index: var(--z-tooltip);
}

[data-tooltip]:hover::before {
  opacity: 1;
  visibility: visible;
}

/* ============================================================================
   25. UTILITY CLASSES
   ============================================================================ */

/* Display */
.hidden { display: none !important; }
.block { display: block; }
.inline { display: inline; }
.inline-block { display: inline-block; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }

/* Flexbox */
.flex-row { flex-direction: row; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.flex-1 { flex: 1; }
.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-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-5 { gap: var(--space-5); }
.gap-6 { gap: var(--space-6); }

/* Grid */
.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); }

@media (max-width: 1024px) {
  .lg\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .lg\:grid-cols-3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .md\:grid-cols-1 { grid-template-columns: 1fr; }
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .sm\:grid-cols-1 { grid-template-columns: 1fr; }
}

/* Spacing */
.m-0 { margin: 0; }
.m-auto { margin: auto; }
.mx-auto { margin-left: auto; margin-right: auto; }
.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-2 { margin-bottom: var(--space-2); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.ml-auto { margin-left: auto; }

.p-0 { padding: 0; }
.p-2 { padding: var(--space-2); }
.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }

/* Text */
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }

.font-normal { font-weight: var(--font-normal); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }
.font-bold { font-weight: var(--font-bold); }

.text-xs { font-size: var(--text-xs); }
.text-sm { font-size: var(--text-sm); }
.text-base { font-size: var(--text-base); }
.text-lg { font-size: var(--text-lg); }
.text-xl { font-size: var(--text-xl); }
.text-2xl { font-size: var(--text-2xl); }

.text-mono { font-family: var(--font-family-mono); }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Colors */
.text-gray-400 { color: var(--color-gray-400); }
.text-gray-500 { color: var(--color-gray-500); }
.text-gray-600 { color: var(--color-gray-600); }
.text-gray-700 { color: var(--color-gray-700); }
.text-gray-800 { color: var(--color-gray-800); }
.text-gray-900 { color: var(--color-gray-900); }

.text-primary { color: var(--color-primary-600); }
.text-success { color: var(--color-success-600); }
.text-warning { color: var(--color-warning-600); }
.text-error { color: var(--color-error-600); }

.bg-white { background-color: white; }
.bg-gray-50 { background-color: var(--color-gray-50); }
.bg-gray-100 { background-color: var(--color-gray-100); }

/* Borders */
.border { border: 1px solid var(--color-gray-200); }
.border-t { border-top: 1px solid var(--color-gray-200); }
.border-b { border-bottom: 1px solid var(--color-gray-200); }
.border-l { border-left: 1px solid var(--color-gray-200); }

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

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

/* Width */
.w-full { width: 100%; }
.w-auto { width: auto; }
.max-w-sm { max-width: 24rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.sticky { position: sticky; }
.inset-0 { inset: 0; }

/* Visibility */
.invisible { visibility: hidden; }
.visible { visibility: visible; }
.opacity-0 { opacity: 0; }
.opacity-50 { opacity: 0.5; }
.opacity-100 { opacity: 1; }

/* Cursor */
.cursor-pointer { cursor: pointer; }
.cursor-not-allowed { cursor: not-allowed; }

/* Overflow */
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.overflow-x-auto { overflow-x: auto; }
.overflow-y-auto { overflow-y: auto; }

/* ============================================================================
   26. SCROLLBAR STYLING
   ============================================================================ */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: var(--color-gray-100);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb {
  background: var(--color-gray-300);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-gray-400);
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--color-gray-300) var(--color-gray-100);
}

/* ============================================================================
   27. PRINT STYLES
   ============================================================================ */
@media print {
  #sidebar,
  .top-header,
  #toast-container,
  .btn,
  .notification-bell,
  #low-stock-alert {
    display: none !important;
  }
  
  main {
    margin-left: 0 !important;
  }
  
  #page-content {
    padding: 0 !important;
    max-width: none !important;
  }
  
  .card {
    break-inside: avoid;
    box-shadow: none !important;
    border: 1px solid #ddd !important;
  }
  
  .data-table {
    font-size: 10pt;
  }
  
  .badge {
    border: 1px solid currentColor;
  }
}

/* ============================================================================
   28. ANIMATIONS
   ============================================================================ */
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

.animate-pulse {
  animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-bounce {
  animation: bounce 1s infinite;
}

/* ============================================================================
   29. RESPONSIVE MEDIA QUERIES
   ============================================================================ */
@media (max-width: 1023px) {
  .lg\:hidden { display: none !important; }
}

@media (min-width: 1024px) {
  .lg\:block { display: block !important; }
  .lg\:flex { display: flex !important; }
}

@media (max-width: 767px) {
  .md\:hidden { display: none !important; }
  
  .page-header {
    flex-direction: column;
    align-items: stretch;
  }
  
  .page-actions {
    justify-content: flex-start;
  }
  
  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }
  
  .filter-input,
  .filter-select {
    max-width: none;
    width: 100%;
  }
  
  .notification-dropdown {
    width: calc(100vw - 32px);
    right: -16px;
  }
}

@media (max-width: 639px) {
  .sm\:hidden { display: none !important; }
  
  .modal {
    margin: var(--space-4);
    max-height: calc(100vh - 32px);
  }
  
  .top-header {
    padding: 0 var(--space-4);
  }
  
  #page-content {
    padding: var(--space-4);
  }
  
  .stat-card {
    padding: var(--space-4);
  }
  
  .stat-value {
    font-size: var(--text-2xl);
  }
}