/* ==========================================
   MEXI PEL - 2026 MODERN DESIGN SYSTEM
   ========================================== */

/* CSS Custom Properties */
:root {
  /* Colors - Light Theme */
  --color-primary: #6366f1;
  --color-primary-light: #818cf8;
  --color-primary-dark: #4f46e5;
  
  --color-secondary: #8b5cf6;
  --color-accent: #ec4899;
  
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --color-info: #3b82f6;
  
  --color-text: #1e293b;
  --color-text-muted: #64748b;
  --color-text-light: #94a3b8;
  
  --color-bg: #f8fafc;
  --color-bg-secondary: #f1f5f9;
  --color-surface: #ffffff;
  --color-surface-hover: #f8fafc;
  --color-border: #e2e8f0;
  
  /* Glass Effects */
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.08);
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Typography */
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', 'Helvetica Neue', Arial, sans-serif;
  --font-mono: 'SF Mono', Monaco, 'Cascadia Code', monospace;
  
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;
  
  /* Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  --radius-full: 9999px;
  
  /* 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);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  --shadow-2xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
  
  /* Layout */
  --sidebar-width: 280px;
  --header-height: 70px;
  --max-width: 1400px;
}

/* Dark Theme */
[data-theme="dark"] {
  --color-text: #f1f5f9;
  --color-text-muted: #94a3b8;
  --color-text-light: #64748b;
  
  --color-bg: #0f172a;
  --color-bg-secondary: #1e293b;
  --color-surface: #1e293b;
  --color-surface-hover: #334155;
  --color-border: #334155;
  
  --glass-bg: rgba(30, 41, 59, 0.7);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
}

/* Theme Transition */
.theme-transitioning,
.theme-transitioning *,
.theme-transitioning *:before,
.theme-transitioning *:after {
  transition: background-color var(--transition-slow), 
              color var(--transition-slow), 
              border-color var(--transition-slow) !important;
}

/* ==========================================
   BASE STYLES
   ========================================== */

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

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

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

::-webkit-scrollbar-thumb {
  background: var(--color-border);
  border-radius: var(--radius-full);
}

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

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

/* ==========================================
   TYPOGRAPHY
   ========================================== */

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
}

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

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-muted);
}

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

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

/* ==========================================
   LAYOUT
   ========================================== */

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

/* Grid System */
.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Flex Utilities */
.flex {
  display: flex;
}

.flex-col {
  flex-direction: column;
}

.items-center {
  align-items: center;
}

.justify-between {
  justify-content: space-between;
}

.justify-center {
  justify-content: center;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ==========================================
   CARDS & SURFACES
   ========================================== */

.card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  transition: all var(--transition-base);
}

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

.card-header {
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-lg);
  border-bottom: 1px solid var(--color-border);
}

.card-title {
  font-size: var(--text-xl);
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.card-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.card-body {
  flex: 1;
}

.card-footer {
  margin-top: var(--spacing-lg);
  padding-top: var(--spacing-lg);
  border-top: 1px solid var(--color-border);
}

/* ==========================================
   BUTTONS
   ========================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1;
  text-align: center;
  white-space: nowrap;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  position: relative;
  overflow: hidden;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: white;
  box-shadow: 0 4px 15px 0 rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.4);
}

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

.btn-secondary:hover {
  background: var(--color-surface-hover);
}

.btn-success {
  background: linear-gradient(135deg, var(--color-success) 0%, #059669 100%);
  color: white;
  box-shadow: 0 4px 15px 0 rgba(16, 185, 129, 0.3);
}

.btn-danger {
  background: linear-gradient(135deg, var(--color-danger) 0%, #dc2626 100%);
  color: white;
  box-shadow: 0 4px 15px 0 rgba(239, 68, 68, 0.3);
}

.btn-warning {
  background: linear-gradient(135deg, var(--color-warning) 0%, #d97706 100%);
  color: white;
  box-shadow: 0 4px 15px 0 rgba(245, 158, 11, 0.3);
}

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

.btn-ghost:hover {
  background: var(--color-surface-hover);
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: var(--text-lg);
}

.btn-block {
  display: flex;
  width: 100%;
}

/* ==========================================
   FORMS
   ========================================== */

.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

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

.input-error:focus {
  box-shadow: 0 0 0 3px rgba(239, 68, 68, 0.1);
}

.error-message {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--text-sm);
  color: var(--color-danger);
}

.form-help {
  display: block;
  margin-top: var(--spacing-xs);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ==========================================
   BADGES
   ========================================== */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.75rem;
  font-size: var(--text-xs);
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-primary {
  background: rgba(99, 102, 241, 0.1);
  color: var(--color-primary);
}

.badge-success {
  background: rgba(16, 185, 129, 0.1);
  color: var(--color-success);
}

.badge-warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--color-warning);
}

.badge-danger {
  background: rgba(239, 68, 68, 0.1);
  color: var(--color-danger);
}

.badge-info {
  background: rgba(59, 130, 246, 0.1);
  color: var(--color-info);
}

.badge-secondary {
  background: rgba(100, 116, 139, 0.1);
  color: var(--color-text-muted);
}

/* ==========================================
   TABLES
   ========================================== */

.table-container {
  overflow-x: auto;
  border-radius: var(--radius-xl);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
}

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

.table th,
.table td {
  padding: var(--spacing-md);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.table th {
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text-muted);
  background: var(--color-bg-secondary);
}

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

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

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

/* ==========================================
   NAVIGATION
   ========================================== */

.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
}

.navbar-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding: 0 var(--spacing-xl);
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  list-style: none;
}

.navbar-link {
  padding: 0.5rem 1rem;
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
}

/* Sidebar */
.sidebar {
  position: fixed;
  top: var(--header-height);
  left: 0;
  width: var(--sidebar-width);
  height: calc(100vh - var(--header-height));
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-right: 1px solid var(--glass-border);
  overflow-y: auto;
  padding: var(--spacing-xl);
  transition: transform var(--transition-base);
}

.sidebar-menu {
  list-style: none;
}

.sidebar-item {
  margin-bottom: var(--spacing-sm);
}

.sidebar-link {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  font-size: var(--text-base);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.sidebar-link:hover,
.sidebar-link.active {
  color: var(--color-primary);
  background: rgba(99, 102, 241, 0.1);
}

.sidebar-icon {
  font-size: var(--text-xl);
}

/* Main Content */
.main-content {
  margin-left: var(--sidebar-width);
  padding: var(--spacing-2xl);
  min-height: calc(100vh - var(--header-height));
}

/* ==========================================
   MODALS
   ========================================== */

.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1000;
  opacity: 0;
  transition: opacity var(--transition-base);
  padding: var(--spacing-lg);
}

.modal-overlay.show {
  opacity: 1;
}

.modal-container {
  background: var(--color-surface);
  border-radius: var(--radius-2xl);
  box-shadow: var(--shadow-2xl);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  transform: scale(0.9);
  transition: transform var(--transition-base);
}

.modal-overlay.show .modal-container {
  transform: scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
}

.modal-header h3 {
  margin: 0;
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  font-size: var(--text-2xl);
  color: var(--color-text-muted);
  cursor: pointer;
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--color-surface-hover);
  color: var(--color-text);
}

.modal-body {
  padding: var(--spacing-xl);
}

.modal-footer {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: var(--spacing-md);
  padding: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.modal-input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  margin-top: var(--spacing-md);
}

/* ==========================================
   TOAST NOTIFICATIONS
   ========================================== */

#toast-container {
  position: fixed;
  top: calc(var(--header-height) + var(--spacing-lg));
  right: var(--spacing-lg);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.toast {
  min-width: 300px;
  padding: var(--spacing-md) var(--spacing-lg);
  background: var(--color-surface);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  border-left: 4px solid;
  opacity: 0;
  transform: translateX(100%);
  transition: all var(--transition-base);
}

.toast.show {
  opacity: 1;
  transform: translateX(0);
}

.toast-content {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.toast-icon {
  font-size: var(--text-xl);
  font-weight: bold;
}

.toast-message {
  flex: 1;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.toast-success {
  border-left-color: var(--color-success);
}

.toast-success .toast-icon {
  color: var(--color-success);
}

.toast-error {
  border-left-color: var(--color-danger);
}

.toast-error .toast-icon {
  color: var(--color-danger);
}

.toast-warning {
  border-left-color: var(--color-warning);
}

.toast-warning .toast-icon {
  color: var(--color-warning);
}

.toast-info {
  border-left-color: var(--color-info);
}

.toast-info .toast-icon {
  color: var(--color-info);
}

/* ==========================================
   LOADING
   ========================================== */

.loader-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 10000;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.loader-overlay.show {
  opacity: 1;
}

.loader-container {
  text-align: center;
}

.loader-spinner {
  width: 50px;
  height: 50px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto var(--spacing-md);
}

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

.loader-message {
  color: white;
  font-size: var(--text-base);
}

/* ==========================================
   UTILITIES
   ========================================== */

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

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

.mt-0 { margin-top: 0; }
.mt-sm { margin-top: var(--spacing-sm); }
.mt-md { margin-top: var(--spacing-md); }
.mt-lg { margin-top: var(--spacing-lg); }
.mt-xl { margin-top: var(--spacing-xl); }

.mb-0 { margin-bottom: 0; }
.mb-sm { margin-bottom: var(--spacing-sm); }
.mb-md { margin-bottom: var(--spacing-md); }
.mb-lg { margin-bottom: var(--spacing-lg); }
.mb-xl { margin-bottom: var(--spacing-xl); }

.hidden { display: none; }

/* ==========================================
   STATS CARDS
   ========================================== */

.stat-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-2xl);
  padding: var(--spacing-xl);
  box-shadow: var(--glass-shadow);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-secondary));
}

.stat-value {
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.stat-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-change {
  margin-top: var(--spacing-sm);
  font-size: var(--text-sm);
  font-weight: 600;
}

.stat-change.positive {
  color: var(--color-success);
}

.stat-change.negative {
  color: var(--color-danger);
}

/* ==========================================
   EMPTY STATE
   ========================================== */

.empty-state {
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-xl);
}

.empty-state-icon {
  font-size: 4rem;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-lg);
}

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

.empty-state-message {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-lg);
}

/* ==========================================
   PAGINATION
   ========================================== */

.pagination-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
}

.pagination-info {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

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

@media (max-width: 1024px) {
  .sidebar {
    transform: translateX(-100%);
  }

  .sidebar.show {
    transform: translateX(0);
  }

  .main-content {
    margin-left: 0;
  }

  .grid-cols-4,
  .grid-cols-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --sidebar-width: 0;
  }

  .navbar-menu {
    display: none;
  }

  .grid-cols-2 {
    grid-template-columns: 1fr;
  }

  .main-content {
    padding: var(--spacing-lg);
  }

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

  #toast-container {
    left: var(--spacing-md);
    right: var(--spacing-md);
  }

  .toast {
    min-width: auto;
  }
}

@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .table-container {
    border-radius: 0;
    margin: 0 calc(var(--spacing-lg) * -1);
  }
}