/* 
  ==========================================================================
  NSC GMAO - Premium Design System
  Application de Gestion de Maintenance Assistée par Ordinateur
  ========================================================================== 
*/

/* --- 0. VARIABLES --- */
:root {
  /* Primary - Deep Navy Blue */
  --primary-900: #0a1628;
  --primary-800: #0f2240;
  --primary-700: #142e58;
  --primary-600: #1a3a70;
  --primary-500: #1e4d8c;
  --primary-400: #2b6cb0;
  --primary-300: #4299e1;
  --primary-200: #90cdf4;
  --primary-100: #ebf8ff;
  
  /* Accent - Amber/Gold */
  --accent-500: #ed8936;
  --accent-400: #f6ad55;
  --accent-300: #fbd38d;
  
  /* Success */
  --success-600: #276749;
  --success-500: #38a169;
  --success-400: #48bb78;
  --success-100: #f0fff4;
  
  /* Warning */
  --warning-600: #b7791f;
  --warning-500: #d69e2e;
  --warning-400: #ecc94b;
  --warning-100: #fffff0;
  
  /* Danger */
  --danger-600: #c53030;
  --danger-500: #e53e3e;
  --danger-400: #fc8181;
  --danger-100: #fff5f5;

  /* Info */
  --info-500: #3182ce;
  --info-100: #ebf8ff;
  
  /* Neutral */
  --gray-900: #1a202c;
  --gray-800: #2d3748;
  --gray-700: #4a5568;
  --gray-600: #718096;
  --gray-500: #a0aec0;
  --gray-400: #cbd5e0;
  --gray-300: #e2e8f0;
  --gray-200: #edf2f7;
  --gray-100: #f7fafc;
  --gray-50: #fafbfd;
  
  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.85);
  --glass-border: rgba(255, 255, 255, 0.4);
  --glass-shadow: 0 8px 32px rgba(10, 22, 40, 0.08);
  --glass-shadow-hover: 0 12px 48px rgba(10, 22, 40, 0.12);
  
  /* Module Colors */
  --module-acs: #2b6cb0;
  --module-di: #c05621;
  --module-ai: #2f855a;
  --module-dsf: #6b46c1;
  --module-cctv: #b7791f;
  
  /* Typography */
  --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  
  /* Dimensions */
  --sidebar-width: 280px;
  --sidebar-collapsed: 80px;
  --header-height-mobile: 64px;
  
  /* Border Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 500ms cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

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

body {
  font-family: var(--font-family);
  background-color: var(--gray-50);
  background-image: 
    radial-gradient(at 0% 0%, hsla(210,100%,97%,1) 0, transparent 50%), 
    radial-gradient(at 50% 0%, hsla(214,100%,97%,1) 0, transparent 50%), 
    radial-gradient(at 100% 0%, hsla(210,100%,97%,1) 0, transparent 50%);
  background-attachment: fixed;
  color: var(--gray-800);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  color: var(--gray-900);
  font-weight: 600;
  line-height: 1.2;
}

a {
  color: var(--primary-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: inherit;
  border: none;
  background: none;
}

/* --- 2. SELECTION & SCROLLBAR --- */
::selection {
  background-color: var(--primary-200);
  color: var(--primary-900);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

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

::-webkit-scrollbar-thumb {
  background: var(--gray-400);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--gray-500);
}

/* --- 3. ANIMATIONS --- */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes slideInRight {
  from { opacity: 0; transform: translateX(50px); }
  to { opacity: 1; transform: translateX(0); }
}

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

@keyframes spin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes pulse {
  0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(237, 137, 54, 0.7); }
  70% { transform: scale(1.05); box-shadow: 0 0 0 10px rgba(237, 137, 54, 0); }
  100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(237, 137, 54, 0); }
}

@keyframes shimmer {
  0% { background-position: -1000px 0; }
  100% { background-position: 1000px 0; }
}

@keyframes drawBorder {
  from { height: 0; }
  to { height: 100%; }
}

/* --- 4. APP LAYOUT --- */
.app-layout {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
  transition: grid-template-columns var(--transition-normal);
}

/* --- 5. MOBILE HEADER --- */
.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height-mobile);
  padding: 0 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-around;
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  z-index: 50;
}

.menu-toggle span {
  width: 24px;
  height: 2px;
  background: var(--primary-900);
  border-radius: 10px;
  transition: all var(--transition-fast) linear;
  position: relative;
  transform-origin: 1px;
}

.mobile-logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--primary-900);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* --- 6. SIDEBAR --- */
.sidebar {
  background: linear-gradient(180deg, var(--primary-900) 0%, var(--primary-800) 100%);
  color: white;
  display: flex;
  flex-direction: column;
  height: 100vh;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 4px 0 24px rgba(10, 22, 40, 0.15);
  transition: transform var(--transition-normal);
}

.sidebar-header {
  padding: 32px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 16px;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  box-shadow: 0 0 15px rgba(66, 153, 225, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.logo-text h1 {
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0;
}

.logo-text p {
  color: var(--primary-200);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-top: 4px;
}

.client-selector {
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: background var(--transition-fast);
}

.client-selector:hover {
  background: rgba(0, 0, 0, 0.3);
}

.client-selector-info {
  display: flex;
  flex-direction: column;
}

.client-selector-label {
  font-size: 0.7rem;
  color: var(--gray-400);
  text-transform: uppercase;
  margin-bottom: 2px;
}

.client-selector-value {
  font-size: 0.9rem;
  font-weight: 600;
  color: white;
}

.sidebar-nav {
  flex: 1;
  padding: 0 16px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sidebar-nav::-webkit-scrollbar {
  width: 4px;
}
.sidebar-nav::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.1);
}

.nav-btn {
  display: flex;
  align-items: center;
  width: 100%;
  padding: 14px 16px;
  color: var(--gray-400);
  border-radius: var(--radius-md);
  font-size: 0.95rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.nav-btn i, .nav-btn svg {
  width: 24px;
  font-size: 1.25rem;
  margin-right: 14px;
  display: flex;
  justify-content: center;
  transition: color var(--transition-fast);
}

.nav-btn:hover {
  background: var(--primary-700);
  color: white;
}

.nav-btn.active {
  background: rgba(255, 255, 255, 0.1);
  color: white;
  font-weight: 600;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.05);
}

.nav-btn.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent-500);
  border-radius: 0 4px 4px 0;
  animation: drawBorder 0.3s ease-out forwards;
}

.nav-btn.active i {
  color: var(--accent-400);
  text-shadow: 0 0 10px rgba(237, 137, 54, 0.5);
}

.sidebar-footer {
  padding: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.75rem;
  color: var(--gray-500);
  text-align: center;
}

/* --- 7. MAIN CONTENT & PAGES --- */
.main-content {
  position: relative;
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow-y: auto;
  padding: 32px 40px;
}

.page {
  display: none;
  animation: fadeIn var(--transition-normal) ease-out;
}

.page.active {
  display: block;
}

.page-header {
  margin-bottom: 32px;
  animation: slideUp 0.4s ease-out forwards;
}

.page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--primary-900);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.page-subtitle {
  color: var(--gray-500);
  font-size: 1rem;
}

.header-actions {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-top: 16px;
}

/* --- 8. CARDS --- */
.card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-bottom: 24px;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

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

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--gray-200);
}

.card-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-800);
  display: flex;
  align-items: center;
  gap: 12px;
}

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

/* --- 9. STAT CARDS --- */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 24px;
  margin-bottom: 32px;
}

.stat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  box-shadow: 0 4px 15px rgba(0,0,0,0.03);
  border: 1px solid var(--gray-200);
  position: relative;
  overflow: hidden;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  animation: slideUp 0.5s ease-out forwards;
}

.stat-card:nth-child(2) { animation-delay: 0.1s; }
.stat-card:nth-child(3) { animation-delay: 0.2s; }
.stat-card:nth-child(4) { animation-delay: 0.3s; }

.stat-card:hover {
  transform: translateY(-4px) scale(1.01);
  box-shadow: 0 12px 24px rgba(0,0,0,0.08);
}

.stat-card::after {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 100px;
  height: 100px;
  background: radial-gradient(circle, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0) 70%);
  opacity: 0.5;
  border-radius: 50%;
  transform: translate(30%, -30%);
}

.stat-info {
  display: flex;
  flex-direction: column;
  z-index: 1;
}

.stat-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1.1;
  margin-bottom: 8px;
}

.stat-label {
  color: var(--gray-500);
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  z-index: 1;
}

.stat-card.primary .stat-icon {
  background: var(--primary-100);
  color: var(--primary-600);
}
.stat-card.success .stat-icon {
  background: var(--success-100);
  color: var(--success-600);
}
.stat-card.warning .stat-icon {
  background: var(--warning-100);
  color: var(--warning-600);
}
.stat-card.danger .stat-icon {
  background: var(--danger-100);
  color: var(--danger-600);
}

.stat-trend {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  margin-top: 12px;
}
.stat-trend.positive { color: var(--success-500); }
.stat-trend.negative { color: var(--danger-500); }

/* --- 10. MODULE BUTTONS --- */
.module-selector {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 24px;
}

.module-btn {
  padding: 10px 20px;
  border-radius: var(--radius-full);
  font-weight: 600;
  font-size: 0.875rem;
  display: flex;
  align-items: center;
  gap: 8px;
  background: white;
  border: 1px solid var(--gray-200);
  color: var(--gray-700);
  box-shadow: 0 2px 5px rgba(0,0,0,0.02);
  transition: all var(--transition-normal);
}

.module-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0,0,0,0.05);
}

.module-btn i {
  font-size: 1.1rem;
}

.module-btn[data-module="acs"].active { background: var(--module-acs); color: white; border-color: var(--module-acs); box-shadow: 0 4px 15px rgba(43, 108, 176, 0.3); }
.module-btn[data-module="di"].active { background: var(--module-di); color: white; border-color: var(--module-di); box-shadow: 0 4px 15px rgba(192, 86, 33, 0.3); }
.module-btn[data-module="ai"].active { background: var(--module-ai); color: white; border-color: var(--module-ai); box-shadow: 0 4px 15px rgba(47, 133, 90, 0.3); }
.module-btn[data-module="dsf"].active { background: var(--module-dsf); color: white; border-color: var(--module-dsf); box-shadow: 0 4px 15px rgba(107, 70, 193, 0.3); }
.module-btn[data-module="cctv"].active { background: var(--module-cctv); color: white; border-color: var(--module-cctv); box-shadow: 0 4px 15px rgba(183, 121, 31, 0.3); }

/* --- 11. TABLES --- */
.table-container {
  width: 100%;
  overflow-x: auto;
  border-radius: var(--radius-lg);
  box-shadow: 0 2px 8px rgba(0,0,0,0.04);
  background: white;
  border: 1px solid var(--gray-200);
}

table {
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  text-align: left;
}

thead th {
  background: var(--primary-700);
  color: white;
  font-weight: 600;
  padding: 16px 20px;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
  position: sticky;
  top: 0;
  z-index: 10;
  white-space: nowrap;
}

thead th:first-child { border-top-left-radius: var(--radius-lg); }
thead th:last-child { border-top-right-radius: var(--radius-lg); }

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

tbody tr:nth-child(even) {
  background-color: var(--gray-50);
}

tbody tr:hover {
  background-color: var(--primary-100);
}

td {
  padding: 16px 20px;
  border-bottom: 1px solid var(--gray-200);
  color: var(--gray-800);
  font-size: 0.9rem;
  vertical-align: middle;
}

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

.td-actions {
  display: flex;
  gap: 8px;
}

/* --- 12. FORMS --- */
.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  margin-bottom: 16px;
}

.form-group.full-width {
  grid-column: 1 / -1;
}

label {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.required::after {
  content: '*';
  color: var(--danger-500);
  margin-left: 4px;
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
input[type="date"],
input[type="month"],
select,
textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-md);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--gray-900);
  background-color: white;
  transition: all var(--transition-fast);
  box-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

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

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary-400);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.15);
}

input::placeholder,
textarea::placeholder {
  color: var(--gray-400);
}

input:disabled,
select:disabled,
textarea:disabled {
  background-color: var(--gray-100);
  cursor: not-allowed;
  color: var(--gray-500);
}

/* Checkbox & Radio styling */
.checkbox-container, .radio-container {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
}

input[type="checkbox"], input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary-500);
  cursor: pointer;
}

/* --- 13. BUTTONS --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: var(--radius-md);
  font-weight: 500;
  font-size: 0.95rem;
  text-align: center;
  transition: all var(--transition-fast);
  user-select: none;
  box-shadow: 0 1px 2px rgba(0,0,0,0.05);
}

.btn:active {
  transform: scale(0.97);
}

.btn-primary {
  background-color: var(--primary-500);
  color: white;
  border: 1px solid transparent;
}
.btn-primary:hover {
  background-color: var(--primary-600);
  box-shadow: 0 4px 12px rgba(30, 77, 140, 0.2);
}

.btn-success {
  background-color: var(--success-500);
  color: white;
}
.btn-success:hover {
  background-color: var(--success-600);
  box-shadow: 0 4px 12px rgba(56, 161, 105, 0.2);
}

.btn-danger {
  background-color: var(--danger-500);
  color: white;
}
.btn-danger:hover {
  background-color: var(--danger-600);
  box-shadow: 0 4px 12px rgba(229, 62, 62, 0.2);
}

.btn-warning {
  background-color: var(--warning-500);
  color: white;
}
.btn-warning:hover {
  background-color: var(--warning-600);
}

.btn-outline {
  background-color: transparent;
  border: 1px solid var(--gray-300);
  color: var(--gray-700);
}
.btn-outline:hover {
  background-color: var(--gray-50);
  border-color: var(--gray-400);
  color: var(--gray-900);
}

.btn-ghost {
  background-color: transparent;
  color: var(--gray-600);
  box-shadow: none;
}
.btn-ghost:hover {
  background-color: var(--gray-100);
  color: var(--gray-900);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.85rem;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: 14px 28px;
  font-size: 1.1rem;
  border-radius: var(--radius-lg);
}

.btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  display: inline-flex;
  border-radius: var(--radius-md);
}
.btn-icon.btn-sm { width: 28px; height: 28px; }

/* --- 14. BADGES --- */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

.badge-success { background: var(--success-100); color: var(--success-600); border: 1px solid var(--success-400); }
.badge-warning { background: var(--warning-100); color: var(--warning-600); border: 1px solid var(--warning-400); }
.badge-danger { background: var(--danger-100); color: var(--danger-600); border: 1px solid var(--danger-400); }
.badge-info { background: var(--info-100); color: var(--info-500); border: 1px solid var(--info-500); }
.badge-neutral { background: var(--gray-100); color: var(--gray-700); border: 1px solid var(--gray-300); }

/* --- 15. MODALS --- */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(10, 22, 40, 0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 1;
  visibility: visible;
  transition: opacity var(--transition-normal), visibility var(--transition-normal);
}

.modal-overlay.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  display: none !important;
}

.modal-content {
  background: white;
  width: 90%;
  max-width: 600px;
  max-height: 90vh;
  border-radius: var(--radius-xl);
  box-shadow: 0 20px 60px rgba(0,0,0,0.15);
  display: flex;
  flex-direction: column;
  transform: scale(1) translateY(0);
  transition: transform var(--transition-normal) cubic-bezier(0.34, 1.56, 0.64, 1);
  overflow-y: auto;
}

.modal-header {
  padding: 20px 24px;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-title {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--primary-900);
}

.modal-close {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gray-100);
  border-radius: var(--radius-full);
  color: var(--gray-500);
  transition: all var(--transition-fast);
}

.modal-close:hover {
  background: var(--danger-100);
  color: var(--danger-500);
  transform: rotate(90deg);
}

.modal-body {
  padding: 24px;
  overflow-y: auto;
  flex: 1;
}

.modal-footer {
  padding: 20px 24px;
  border-top: 1px solid var(--gray-200);
  display: flex;
  justify-content: flex-end;
  gap: 12px;
  background: var(--gray-50);
}

.modal-lg { max-width: 800px; }
.modal-xl { max-width: 1000px; }

/* --- 16. ALERTS & TOASTS --- */
.alert-box {
  padding: 16px;
  border-radius: var(--radius-md);
  margin-bottom: 20px;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  border-left: 4px solid;
}

.alert-icon {
  font-size: 1.25rem;
  margin-top: 2px;
}

.alert-content p {
  font-size: 0.9rem;
  margin-top: 4px;
}

.alert-title { font-weight: 600; font-size: 1rem; }

.alert-info { background: var(--info-100); border-left-color: var(--info-500); color: var(--primary-800); }
.alert-info .alert-icon { color: var(--info-500); }

.alert-success { background: var(--success-100); border-left-color: var(--success-500); color: var(--success-600); }
.alert-success .alert-icon { color: var(--success-500); }

.alert-warning { background: var(--warning-100); border-left-color: var(--warning-500); color: var(--warning-600); }
.alert-warning .alert-icon { color: var(--warning-500); }

.alert-danger { background: var(--danger-100); border-left-color: var(--danger-500); color: var(--danger-600); }
.alert-danger .alert-icon { color: var(--danger-500); }

.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1000;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.toast {
  min-width: 300px;
  max-width: 400px;
  background: white;
  border-radius: var(--radius-md);
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-left: 4px solid;
  animation: slideInRight 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  position: relative;
  overflow: hidden;
}

.toast-success { border-left-color: var(--success-500); }
.toast-success i { color: var(--success-500); }

.toast-error { border-left-color: var(--danger-500); }
.toast-error i { color: var(--danger-500); }

.toast-info { border-left-color: var(--info-500); }
.toast-info i { color: var(--info-500); }

.toast-message {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gray-800);
}

.toast-close {
  color: var(--gray-400);
  cursor: pointer;
}

/* --- 17. SPECIAL COMPONENTS --- */

/* Search Bar */
.search-container {
  position: relative;
  width: 100%;
  max-width: 400px;
}
.search-container i {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--gray-500);
}
.search-bar {
  width: 100%;
  padding: 12px 16px 12px 40px;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-full);
  background: white;
  transition: all var(--transition-normal);
  box-shadow: 0 2px 5px rgba(0,0,0,0.02);
}
.search-bar:focus {
  border-color: var(--primary-400);
  box-shadow: 0 4px 15px rgba(66, 153, 225, 0.15);
  outline: none;
}

/* Battery Gauge */
.battery-card {
  background: white;
  border-radius: var(--radius-md);
  padding: 16px;
  border: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  gap: 16px;
}
.battery-gauge-wrapper {
  flex: 1;
  height: 12px;
  background: var(--gray-200);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}
.battery-gauge {
  height: 100%;
  border-radius: var(--radius-full);
  transition: width 1s ease-in-out, background-color 0.5s ease;
}
.battery-gauge[data-level="high"] { background: var(--success-500); }
.battery-gauge[data-level="medium"] { background: var(--warning-500); }
.battery-gauge[data-level="low"] { background: var(--accent-500); }
.battery-gauge[data-level="critical"] { background: var(--danger-500); animation: pulse 2s infinite; }
.battery-label { font-weight: 700; font-size: 1.1rem; min-width: 50px; text-align: right; }

/* Client Cards */
.client-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.client-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--gray-200);
  border-left: 4px solid var(--primary-500);
  box-shadow: 0 4px 10px rgba(0,0,0,0.02);
  transition: all var(--transition-normal);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.client-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 20px rgba(0,0,0,0.08);
  border-left-color: var(--accent-500);
}
.client-card-title { font-size: 1.1rem; font-weight: 700; color: var(--gray-900); margin-bottom: 4px; }
.client-card-meta { font-size: 0.85rem; color: var(--gray-500); display: flex; gap: 12px; margin-bottom: 16px; }
.client-card-stats { display: flex; justify-content: space-between; border-top: 1px solid var(--gray-100); padding-top: 12px; }
.client-stat { text-align: center; }
.client-stat-val { font-weight: 700; color: var(--primary-700); font-size: 1.1rem; }
.client-stat-lbl { font-size: 0.7rem; color: var(--gray-500); text-transform: uppercase; }

/* Dashboard Charts Wrapper */
.chart-container {
  position: relative;
  height: 300px;
  width: 100%;
  margin-top: 20px;
}

/* --- 18. LOADING OVERLAY --- */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-overlay.hidden {
  opacity: 0;
  visibility: hidden;
}

.loading-spinner {
  width: 50px;
  height: 50px;
  border: 4px solid var(--gray-200);
  border-top-color: var(--primary-500);
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: 16px;
}

.loading-text {
  font-weight: 600;
  color: var(--primary-800);
  letter-spacing: 0.05em;
  animation: pulse 2s infinite;
}

/* Skeleton Loading */
.skeleton {
  background: #f6f7f8;
  background-image: linear-gradient(to right, #f6f7f8 0%, #edeef1 20%, #f6f7f8 40%, #f6f7f8 100%);
  background-repeat: no-repeat;
  background-size: 800px 100%; 
  animation: shimmer 1.5s infinite linear;
  border-radius: var(--radius-sm);
}
.skeleton-text { height: 16px; margin-bottom: 8px; width: 100%; }
.skeleton-text.short { width: 50%; }
.skeleton-avatar { width: 48px; height: 48px; border-radius: 50%; }

/* --- 19. RESPONSIVE DESIGN --- */

/* Desktop & Large Screens (1024px+) */
@media (min-width: 1024px) {
  .sidebar-collapsed {
    grid-template-columns: var(--sidebar-collapsed) 1fr;
  }
  .sidebar-collapsed .logo-text, 
  .sidebar-collapsed .nav-btn span,
  .sidebar-collapsed .client-selector-info,
  .sidebar-collapsed .sidebar-footer {
    display: none;
  }
  .sidebar-collapsed .logo { justify-content: center; }
  .sidebar-collapsed .nav-btn { justify-content: center; padding: 14px 0; }
  .sidebar-collapsed .nav-btn i { margin-right: 0; font-size: 1.5rem; }
  .sidebar-collapsed .client-selector { justify-content: center; padding: 12px 0; }
  .sidebar-collapsed .client-selector i { margin: 0; }
}

/* ========== TABLETS (768px - 1023px) ========== */
@media (max-width: 1023px) {
  :root {
    --sidebar-width: 240px;
  }
  
  .main-content {
    padding: 20px;
  }
  
  /* Grilles adaptées tablette */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }
  
  /* Formulaires en 2 colonnes sur tablette */
  form[style*="grid-template-columns: 1fr 1fr 1fr"] {
    grid-template-columns: 1fr 1fr !important;
  }
  
  /* Tables : scroll horizontal */
  .table-container, 
  div[style*="overflow"] table,
  .card table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  table {
    min-width: 600px;
  }
  
  /* Page utilisateurs : formulaire en grille adaptative */
  form[style*="grid-template-columns:1fr 1fr 1fr auto auto"] {
    grid-template-columns: 1fr 1fr !important;
  }
}

/* ========== MOBILE DEVICES (< 768px) ========== */
@media (max-width: 767px) {
  html {
    font-size: 15px;
  }
  
  .app-layout {
    grid-template-columns: 1fr;
    display: block;
  }
  
  /* Mobile Header */
  .mobile-header {
    display: flex;
    position: sticky;
    top: 0;
    z-index: 100;
  }
  
  /* Sidebar : drawer latéral */
  .sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    height: 100dvh;
    transform: translateX(-100%);
    z-index: 1000;
    overflow-y: auto;
  }
  
  .sidebar.open {
    transform: translateX(0);
    box-shadow: 8px 0 30px rgba(0, 0, 0, 0.3);
  }
  
  .sidebar-header {
    padding: 20px 16px 16px;
    gap: 16px;
  }
  
  .sidebar-user {
    margin: 4px 10px;
    padding: 10px 12px;
  }
  
  .sidebar-footer {
    padding: 12px 16px;
    font-size: 10px;
  }
  
  /* Overlay sombre quand sidebar ouverte */
  .sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(3px);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-normal);
  }
  
  .sidebar-overlay.open {
    display: block;
    opacity: 1;
  }
  
  /* Main content mobile */
  .main-content {
    height: calc(100vh - var(--header-height-mobile));
    height: calc(100dvh - var(--header-height-mobile));
    padding: 14px;
    overflow-y: auto;
  }
  
  /* Titres réduits */
  h1, .text-2xl { font-size: 1.25rem !important; }
  h2, .text-xl { font-size: 1.1rem !important; }
  h3, .text-lg { font-size: 1rem !important; }
  
  .page-header {
    margin-bottom: 16px;
  }
  
  .page-title {
    font-size: 1.25rem;
  }
  
  .header-actions {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }
  
  /* Stats en 2 colonnes sur mobile, pas 1 */
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }
  
  .stat-card {
    padding: 14px 12px;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .stat-label {
    font-size: 11px;
  }
  
  /* Formulaires en 1 colonne */
  .form-grid,
  form[style*="grid-template-columns"] {
    grid-template-columns: 1fr !important;
  }
  
  /* Boutons tactiles : plus grands */
  .btn, button[style*="padding"] {
    min-height: 42px;
    font-size: 13px;
  }
  
  .module-btn {
    padding: 8px 14px;
    font-size: 12px;
  }
  
  /* Cards */
  .card {
    padding: 14px;
    border-radius: var(--radius-md);
  }
  
  /* Modules selector : scroll horizontal */
  .module-selector {
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
    gap: 6px;
  }
  
  .module-btn {
    flex-shrink: 0;
    white-space: nowrap;
  }
  
  /* Tables responsives : scroll horizontal */
  .table-container,
  div[style*="overflow"] table,
  .card > table,
  div.card > div > table {
    display: block;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  table {
    min-width: 500px;
  }
  
  td, th {
    padding: 10px 8px;
    font-size: 12px;
    white-space: nowrap;
  }
  
  /* Modals plein écran sur mobile */
  .modal-content,
  div[style*="max-width:520px"],
  div[style*="max-width: 520px"] {
    width: 95% !important;
    max-width: 95% !important;
    margin: 10px auto !important;
    padding: 20px !important;
  }
  
  /* Grilles de boutons d'action en ligne */
  td button, td a.btn {
    padding: 4px 8px !important;
    font-size: 11px !important;
    margin: 1px !important;
  }
  
  /* Email modal responsive */
  #modalEmail > div {
    width: 95% !important;
    max-width: 95% !important;
    padding: 18px !important;
    margin: 10px !important;
  }
  
  /* Grilles dynamiques en 1 colonne */
  .grid, [class*="grid-cols-2"], [class*="grid-cols-3"] {
    grid-template-columns: 1fr !important;
  }

  /* Page utilisateurs : formulaire empilé */
  form[style*="grid-template-columns:1fr 1fr 1fr auto auto"] {
    grid-template-columns: 1fr !important;
  }
  
  /* Cacher les colonnes secondaires dans les tableaux denses */
  .hide-mobile {
    display: none !important;
  }
}

/* ========== TRÈS PETITS ÉCRANS (< 400px) ========== */
@media (max-width: 400px) {
  html {
    font-size: 14px;
  }
  
  .main-content {
    padding: 10px;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
    gap: 8px;
  }
  
  .stat-card {
    padding: 12px 10px;
  }
  
  .login-card {
    padding: 28px 20px;
  }
  
  .login-logo {
    width: 60px;
    height: 60px;
  }
  
  .login-title {
    font-size: 22px;
  }
  
  .sidebar {
    width: 260px;
  }
  
  td, th {
    padding: 8px 6px;
    font-size: 11px;
  }
}

/* ========== LOGIN PAGE RESPONSIVE ========== */
@media (max-width: 767px) {
  .login-card {
    padding: 32px 24px;
    border-radius: 20px;
    margin: 12px;
  }
  
  .login-logo {
    width: 64px;
    height: 64px;
    border-radius: 14px;
  }
  
  .login-title {
    font-size: 24px;
  }
  
  .login-subtitle {
    font-size: 12px;
  }
  
  .login-field input {
    padding: 12px 14px;
    font-size: 15px;
  }
  
  .login-btn {
    padding: 13px;
    font-size: 14px;
  }
}

/* ========== TOUCH IMPROVEMENTS ========== */
@media (hover: none) and (pointer: coarse) {
  /* Zones tactiles minimales */
  .nav-btn {
    min-height: 44px;
  }
  
  button, a, select, input {
    min-height: 38px;
  }
  
  select {
    font-size: 16px; /* Empêche le zoom iOS */
  }
  
  /* Scroll fluide natif */
  .main-content {
    -webkit-overflow-scrolling: touch;
    scroll-behavior: smooth;
  }
  
  /* Désactiver les effets hover sur tactile */
  .nav-btn:hover {
    background: transparent;
  }
  
  .nav-btn.active,
  .nav-btn:active {
    background: rgba(255, 255, 255, 0.1);
  }
}

/* --- 20. PRINT STYLES --- */
@media print {
  body {
    background: white;
    color: black;
  }
  .sidebar, .mobile-header, .header-actions, .nav-btn, .btn:not(.print-visible) {
    display: none !important;
  }
  .app-layout {
    display: block;
  }
  .main-content {
    padding: 0;
    height: auto;
    overflow: visible;
  }
  .card {
    box-shadow: none;
    border: 1px solid #ddd;
    page-break-inside: avoid;
  }
  .table-container {
    box-shadow: none;
    border: none;
  }
  table {
    border-collapse: collapse;
  }
  th, td {
    border: 1px solid #ddd;
    color: black;
  }
  @page {
    margin: 2cm;
  }
}

/* ==========================================
   UTILITY CLASSES (Tailwind-compatible)
   ========================================== */

/* Flexbox */
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.gap-6 { gap: 24px; }

/* Grid */
.grid { display: grid; }
.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
.grid-cols-5 { grid-template-columns: repeat(5, 1fr); }
@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:grid-cols-4 { grid-template-columns: repeat(4, 1fr); }
  .md\:col-span-2 { grid-column: span 2 / span 2; }
}

/* Spacing - Margin */
.m-0 { margin: 0; }
.mb-1 { margin-bottom: 4px; }
.mb-2 { margin-bottom: 8px; }
.mb-3 { margin-bottom: 12px; }
.mb-4 { margin-bottom: 16px; }
.mb-6 { margin-bottom: 24px; }
.mb-8 { margin-bottom: 32px; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mt-6 { margin-top: 24px; }
.mr-1 { margin-right: 4px; }
.mr-2 { margin-right: 8px; }
.ml-2 { margin-left: 8px; }
.mx-auto { margin-left: auto; margin-right: auto; }

/* Spacing - Padding */
.p-1 { padding: 4px; }
.p-2 { padding: 8px; }
.p-3 { padding: 12px; }
.p-4 { padding: 16px; }
.p-6 { padding: 24px; }
.px-2 { padding-left: 8px; padding-right: 8px; }
.px-3 { padding-left: 12px; padding-right: 12px; }
.px-4 { padding-left: 16px; padding-right: 16px; }
.py-1 { padding-top: 4px; padding-bottom: 4px; }
.py-2 { padding-top: 8px; padding-bottom: 8px; }
.py-3 { padding-top: 12px; padding-bottom: 12px; }

/* Width & Height */
.w-full { width: 100%; }
.max-w-2xl { max-width: 672px; }
.max-w-4xl { max-width: 896px; }
.max-h-screen { max-height: 100vh; }

/* Typography */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-left { text-align: left; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.uppercase { text-transform: uppercase; }
.leading-relaxed { line-height: 1.625; }

/* Colors - Text */
.text-white { color: #fff; }
.text-gray-500 { color: var(--gray-500); }
.text-gray-600 { color: var(--gray-600); }
.text-gray-700 { color: var(--gray-700); }
.text-gray-800 { color: var(--gray-800); }
.text-blue-800 { color: #2c5282; }
.text-green-600 { color: #38a169; }
.text-green-700 { color: #276749; }
.text-green-800 { color: #22543d; }
.text-red-600 { color: #e53e3e; }
.text-red-700 { color: #c53030; }
.text-red-800 { color: #9b2c2c; }
.text-yellow-800 { color: #975a16; }
.text-orange-500 { color: #ed8936; }
.text-orange-800 { color: #9c4221; }
.text-purple-700 { color: #6b46c1; }
.text-indigo-700 { color: #4c51bf; }

/* Colors - Background */
.bg-white { background-color: #fff; }
.bg-gray-100 { background-color: var(--gray-100); }
.bg-gray-200 { background-color: var(--gray-200); }
.bg-gray-300 { background-color: var(--gray-300); }
.bg-blue-50 { background-color: #ebf8ff; }
.bg-blue-100 { background-color: #bee3f8; }
.bg-blue-200 { background-color: #90cdf4; }
.bg-blue-600 { background-color: #2b6cb0; }
.bg-green-100 { background-color: #c6f6d5; }
.bg-green-600 { background-color: #38a169; }
.bg-red-100 { background-color: #fed7d7; }
.bg-red-600 { background-color: #e53e3e; }
.bg-yellow-100 { background-color: #fefcbf; }
.bg-orange-100 { background-color: #feebc8; }
.bg-purple-100 { background-color: #e9d8fd; }
.bg-indigo-100 { background-color: #ebf4ff; }
.bg-indigo-600 { background-color: #5a67d8; }
.bg-black { background-color: #000; }

/* Background Opacity */
.bg-opacity-50 { --tw-bg-opacity: 0.5; }
.bg-black.bg-opacity-50 { background-color: rgba(0,0,0,0.5); }

/* Hover Backgrounds */
.hover\:bg-gray-50:hover { background-color: var(--gray-50); }
.hover\:bg-gray-200:hover { background-color: var(--gray-200); }
.hover\:bg-gray-300:hover { background-color: var(--gray-300); }
.hover\:bg-blue-700:hover { background-color: #2c5282; }
.hover\:bg-green-200:hover { background-color: #9ae6b4; }
.hover\:bg-green-700:hover { background-color: #276749; }
.hover\:bg-red-200:hover { background-color: #feb2b2; }
.hover\:bg-red-700:hover { background-color: #c53030; }
.hover\:bg-indigo-700:hover { background-color: #4c51bf; }

/* Borders */
.border { border: 1px solid var(--gray-300); }
.border-b { border-bottom: 1px solid var(--gray-300); }
.border-t { border-top: 1px solid var(--gray-300); }
.border-l-4 { border-left: 4px solid; }
.border-blue-500 { border-color: #4299e1; }
.border-green-500 { border-color: #48bb78; }
.border-yellow-500 { border-color: #ecc94b; }
.border-red-500 { border-color: #fc8181; }
.border-gray-300 { border-color: var(--gray-300); }
.border-collapse { border-collapse: collapse; }

/* Border Radius */
.rounded { border-radius: var(--radius-sm); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-full { border-radius: 9999px; }

/* Box Shadow */
.shadow { box-shadow: 0 1px 3px rgba(0,0,0,0.1), 0 1px 2px rgba(0,0,0,0.06); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -2px rgba(0,0,0,0.05); }

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

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

/* Position */
.relative { position: relative; }
.absolute { position: absolute; }
.fixed { position: fixed; }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-50 { z-index: 50; }

/* Cursor */
.cursor-pointer { cursor: pointer; }

/* Transition */
.transition { transition: all 150ms ease-in-out; }

/* Slide animations for toasts */
@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}
@keyframes slideOut {
  from { transform: translateX(0); opacity: 1; }
  to { transform: translateX(100%); opacity: 0; }
}

/* Additional utilities used in app.js */
.flex-1 { flex: 1 1 0%; }
.flex-wrap { flex-wrap: wrap; }
.divide-y > * + * { border-top: 1px solid var(--gray-200); }
.max-h-60 { max-height: 15rem; }
.max-h-96 { max-height: 24rem; }
.max-w-xs { max-width: 20rem; }
.w-48 { width: 12rem; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.whitespace-nowrap { white-space: nowrap; }
.whitespace-pre-wrap { white-space: pre-wrap; }
.underline { text-decoration: underline; }
.font-mono { font-family: ui-monospace, SFMono-Regular, 'Cascadia Code', monospace; }
.bg-green-500 { background-color: #48bb78; }
.bg-purple-600 { background-color: #805ad5; }
.bg-gray-50 { background-color: var(--gray-50); }
.text-red-500 { color: #f56565; }
.transition-colors { transition: background-color 150ms ease-in-out, color 150ms ease-in-out; }
.p-8 { padding: 32px; }
.hover\:bg-green-600:hover { background-color: #38a169; }
.hover\:bg-gray-100:hover { background-color: var(--gray-100); }
.hover\:text-red-700:hover { color: #c53030; }

@media (min-width: 768px) {
  .md\:grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
  .md\:grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
  .md\:col-span-2 { grid-column: span 2 / span 2; }
  .md\:col-span-3 { grid-column: span 3 / span 3; }
}

/* ==========================================================================
   LOGIN PAGE - Authentification
   ========================================================================== */
.login-page {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #0a1628 0%, #142e58 40%, #1a3a70 70%, #0f2240 100%);
  background-size: 400% 400%;
  animation: gradientShift 12s ease infinite;
}
.login-page.hidden { display: none; }

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

.login-card {
  background: rgba(255, 255, 255, 0.07);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 24px;
  padding: 48px 40px;
  width: 100%;
  max-width: 420px;
  margin: 16px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.4);
  animation: cardAppear 0.5s ease-out;
}

@keyframes cardAppear {
  from { opacity: 0; transform: translateY(30px) scale(0.95); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.login-header {
  text-align: center;
  margin-bottom: 36px;
}

.login-logo {
  width: 80px;
  height: 80px;
  border-radius: 16px;
  object-fit: contain;
  background: white;
  padding: 8px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  margin-bottom: 16px;
}

.login-title {
  font-size: 28px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: 1px;
  margin: 0 0 6px;
}

.login-subtitle {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.55);
  font-weight: 400;
  margin: 0;
}

.login-field {
  margin-bottom: 20px;
}

.login-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.login-field input {
  width: 100%;
  padding: 13px 16px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 12px;
  color: #ffffff;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
  outline: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
}

.login-field input::placeholder {
  color: rgba(255, 255, 255, 0.3);
}

.login-field input:focus {
  border-color: var(--primary-300);
  background: rgba(255, 255, 255, 0.12);
  box-shadow: 0 0 0 3px rgba(66, 153, 225, 0.2);
}

.password-wrapper {
  position: relative;
}

.password-wrapper input {
  padding-right: 48px;
}

.toggle-password {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 18px;
  opacity: 0.5;
  transition: opacity 0.2s;
}

.toggle-password:hover {
  opacity: 0.9;
}

.login-error {
  background: rgba(229, 62, 62, 0.15);
  border: 1px solid rgba(229, 62, 62, 0.4);
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 16px;
  color: #feb2b2;
  font-size: 13px;
  font-weight: 500;
  animation: shakeError 0.4s ease;
}

@keyframes shakeError {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-8px); }
  50% { transform: translateX(8px); }
  75% { transform: translateX(-4px); }
}

.login-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--primary-400), var(--primary-300));
  color: white;
  border: none;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 8px;
}

.login-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(43, 108, 176, 0.4);
}

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

.login-spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

.login-footer {
  text-align: center;
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.3);
  font-size: 11px;
}

/* --- Sidebar User Info --- */
.sidebar-user {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  margin: 8px 12px;
  background: rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
}

.user-info {
  display: flex;
  align-items: center;
  gap: 10px;
}

.user-avatar {
  font-size: 22px;
}

.user-name {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.9);
}

.user-role {
  margin: 0;
  font-size: 10px;
  color: rgba(255, 255, 255, 0.45);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.logout-btn {
  background: rgba(229, 62, 62, 0.15);
  border: 1px solid rgba(229, 62, 62, 0.3);
  border-radius: 8px;
  padding: 6px 10px;
  cursor: pointer;
  font-size: 16px;
  transition: all 0.2s;
}

.logout-btn:hover {
  background: rgba(229, 62, 62, 0.3);
  border-color: rgba(229, 62, 62, 0.5);
}