/**
 * Styles principaux de l'application RSU
 */

:root {
  /* Couleurs principales */
  --primary: #4F46E5;
  --primary-hover: #1c13b2;
  --primary-light: #ffffff;
  --primary-dark: #020098;

  /* Couleurs secondaires */
  --secondary: #10B981;
  --secondary-hover: #00864e;
  --secondary-light: #f5ffff;

  /* Accent */
  --accent: #F59E0B;
  --accent-hover: #c26b00;

  /* Neutres */
  --gray-50: #F9FAFB;
  --gray-100: #F3F4F6;
  --gray-200: #E5E7EB;
  --gray-300: #D1D5DB;
  --gray-400: #9CA3AF;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --gray-700: #374151;
  --gray-800: #1F2937;
  --gray-900: #111827;

  /* Statuts */
  --success: #10B981;
  --danger: #EF4444;
  --warning: #F59E0B;
  --info: #3B82F6;

  /* Typographie */
  --font-family: 'Inter', -apple-system, sans-serif;
  --font-size-base: 16px;
  --line-height: 1.5;

  /* Layout */
  --sidebar-width: 260px;

  /* Espacements & rayons */
  --spacing: 1rem;
  --radius: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;

  /* Ombres */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);

  /* Transitions */
  --transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

/* Layout principal */
.app-container {
  display: flex;
  min-height: 100vh;
}

/* Sidebar */
.sidebar {
  width: var(--sidebar-width);
  background: white;
  border-right: 1px solid var(--gray-200);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--gray-200);
}

.app-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--gray-900);
}

.app-title i {
  color: var(--primary);
  width: 28px;
  height: 28px;
}

.sidebar-nav {
  flex: 1;
  padding: 1rem;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  color: var(--gray-700);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
  margin-bottom: 0.25rem;
}

.nav-item:hover {
  background: var(--gray-100);
  color: var(--gray-900);
}

.nav-item.active {
  background: var(--primary);
  color: white;
}

.nav-item.active i {
  color: white;
}

.nav-item i {
  width: 20px;
  height: 20px;
  color: var(--gray-500);
  transition: var(--transition);
}

.nav-divider {
  height: 1px;
  background: var(--gray-200);
  margin: 1rem 0;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid var(--gray-200);
}

.version-info {
  text-align: center;
  color: var(--gray-500);
}

/* Main Content */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
}

.content-wrapper {
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

/* Page Header */
.page-header {
  margin-bottom: 2rem;
}

.page-header h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.page-header h1 i {
  color: var(--primary);
  width: 32px;
  height: 32px;
}

.page-header p {
  color: var(--gray-600);
  font-size: 1.125rem;
}

/* Cards */
.card {
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

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

.card-header {
  padding: 1.5rem;
  border-bottom: 1px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
}

.card-title i {
  color: var(--primary);
  width: 24px;
  height: 24px;
}

.card-content {
  padding: 1.5rem;
}

/* Stats Grid */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.stat-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  display: flex;
  gap: 1rem;
  transition: var(--transition);
}

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

.stat-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary-light), var(--gray-100));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.stat-icon i {
  color: var(--primary);
  width: 28px;
  height: 28px;
}

.stat-content {
  flex: 1;
}

.stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--gray-900);
  line-height: 1;
  margin-bottom: 0.25rem;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-600);
  font-weight: 500;
}

.stat-trend {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-top: 0.5rem;
  font-size: 0.875rem;
}

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

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

.stat-trend i {
  width: 16px;
  height: 16px;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-success,
.btn-danger,
.btn-warning {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.875rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  font-family: var(--font-family);
}

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

.btn-primary:hover {
  background: var(--primary-hover);
}

.btn-secondary {
  background: white;
  color: var(--gray-700);
  border: 1px solid var(--gray-300);
}

.btn-secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

.btn-success {
  background: var(--success);
  color: white;
}

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

.btn-danger {
  background: var(--danger);
  color: white;
}

.btn-danger:hover {
  background: #DC2626;
}

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

.btn-warning:hover {
  background: var(--accent-hover);
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-small {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

/* Forms */
.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 0.5rem;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  font-family: var(--font-family);
  font-size: 1rem;
  color: var(--gray-900);
  transition: var(--transition);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

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

/* Upload Zone */
.upload-zone {
  border: 2px dashed var(--gray-300);
  border-radius: var(--radius-lg);
  padding: 3rem;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.upload-zone:hover {
  border-color: var(--primary);
  background: var(--primary-light);
}

.upload-zone.dragging {
  border-color: var(--primary);
  background: var(--primary-light);
}

.upload-icon {
  width: 64px;
  height: 64px;
  color: var(--gray-400);
  margin: 0 auto 1rem;
}

.upload-text {
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--gray-900);
  margin-bottom: 0.5rem;
}

.upload-hint {
  color: var(--gray-600);
  font-size: 0.875rem;
}

/* Table */
.data-table {
  width: 100%;
  border-collapse: collapse;
}

.data-table th,
.data-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--gray-200);
}

.data-table th {
  background: var(--gray-50);
  font-weight: 600;
  color: var(--gray-700);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

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

.data-table td {
  color: var(--gray-900);
}

/* Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  padding: 0.25rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-success {
  background: #D1FAE5;
  color: #065F46;
}

.badge-warning {
  background: #FEF3C7;
  color: #92400E;
}

.badge-danger {
  background: #FEE2E2;
  color: #991B1B;
}

.badge-info {
  background: #DBEAFE;
  color: #1E40AF;
}

/* Notifications */
.notification {
  position: fixed;
  top: 2rem;
  right: 2rem;
  background: white;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
  z-index: 1000;
  animation: slideIn 0.3s ease-out;
}

.notification i {
  width: 24px;
  height: 24px;
}

.notification-success {
  border-left: 4px solid var(--success);
  color: var(--success);
}

.notification-error {
  border-left: 4px solid var(--danger);
  color: var(--danger);
}

.notification-info {
  border-left: 4px solid var(--info);
  color: var(--info);
}

/* Animations */
@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;
  }
}

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

.card,
.stat-card {
  animation: fadeIn 0.3s ease-out;
}

/* Responsive */
@media (max-width: 768px) {
  .sidebar {
    transform: translateX(-100%);
  }

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

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

  .content-wrapper {
    padding: 1rem;
  }

  .stats-grid {
    grid-template-columns: 1fr;
  }

  .notification {
    left: 1rem;
    right: 1rem;
  }
}

/* Utilities */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

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

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: 1rem; }
.gap-4 { gap: 2rem; }