/* Variables globales */
:root {
  --primary-color: #4f46e5;
  --primary-hover: #4338ca;
  --secondary-color: #10b981;
  --danger-color: #ef4444;
  --warning-color: #f59e0b;
  --dark-bg: #1f2937;
  --darker-bg: #111827;
  --light-bg: #f9fafb;
  --border-color: #e5e7eb;
  --text-primary: #111827;
  --text-secondary: #6b7280;
  --sidebar-width: 260px;
  --header-height: 70px;
}

/* Reset et base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family:
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, sans-serif;
  background: var(--light-bg);
  color: var(--text-primary);
  overflow-x: hidden;
}

/* Page de connexion */
.login-container {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--primary-color) 0%, #7c3aed 100%);
  padding: 20px;
}

.login-box {
  background: white;
  border-radius: 16px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  animation: slideUp 0.4s ease;
}

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

.login-header {
  text-align: center;
  margin-bottom: 30px;
}

.login-header h1 {
  font-size: 28px;
  margin-bottom: 8px;
  color: var(--primary-color);
}

.login-header p {
  color: var(--text-secondary);
  font-size: 14px;
}

.login-form .form-group {
  margin-bottom: 20px;
}

.login-form label {
  display: block;
  margin-bottom: 8px;
  font-weight: 500;
  color: var(--text-primary);
  font-size: 14px;
}

.login-form input {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid var(--border-color);
  border-radius: 8px;
  font-size: 15px;
  transition: all 0.2s;
}

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

.error-message {
  background: #fee;
  color: var(--danger-color);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  border-left: 4px solid var(--danger-color);
}

.success-message {
  background: #efe;
  color: var(--secondary-color);
  padding: 12px;
  border-radius: 8px;
  margin-bottom: 16px;
  font-size: 14px;
  border-left: 4px solid var(--secondary-color);
}

/* Boutons */
.btn-primary,
.btn-secondary,
.btn-danger,
.btn-icon {
  padding: 12px 24px;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  justify-content: center;
}

.btn-primary {
  background: var(--primary-color);
  color: white;
  width: 100%;
}

.btn-primary:hover {
  background: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

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

.btn-secondary:hover {
  background: #059669;
}

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

.btn-danger:hover {
  background: #dc2626;
}

.btn-icon {
  padding: 10px;
  background: transparent;
  color: var(--text-secondary);
  width: 40px;
  height: 40px;
}

.btn-icon:hover {
  background: var(--border-color);
  color: var(--text-primary);
}

/* Layout principal */
#adminApp {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100vh;
  gap: 0;
}

#adminApp.hidden {
  display: none;
}

/* Sidebar */
.sidebar {
  background: var(--dark-bg);
  color: white;
  display: flex;
  flex-direction: column;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}
  flex-direction: column;
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  width: var(--sidebar-width);
  z-index: 100;
}

.sidebar-header {
  padding: 24px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.sidebar-header h2 {
  font-size: 20px;
  margin-bottom: 4px;
}

.admin-badge {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.6);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.sidebar-nav {
  flex: 1;
  padding: 16px 0;
  overflow-y: auto;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  color: rgba(255, 255, 255, 0.7);
  text-decoration: none;
  transition: all 0.2s;
  font-size: 14px;
  font-weight: 500;
}

.nav-item:hover {
  background: rgba(255, 255, 255, 0.05);
  color: white;
}

.nav-item.active {
  background: var(--primary-color);
  color: white;
  border-left: 4px solid white;
}

.nav-item i {
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 16px 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-logout {
  width: 100%;
  padding: 12px;
  background: rgba(239, 68, 68, 0.1);
  color: #fca5a5;
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  font-size: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s;
}

.btn-logout:hover {
  background: rgba(239, 68, 68, 0.2);
  border-color: rgba(239, 68, 68, 0.5);
}

/* Contenu principal */
.main-content {
  grid-column: 2;
  grid-row: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
}

/* Header */
.top-header {
  background: white;
  height: var(--header-height);
  border-bottom: 1px solid var(--border-color);
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-left h1 {
  font-size: 24px;
  margin-bottom: 4px;
}

.last-update {
  font-size: 12px;
  color: var(--text-secondary);
}

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

.admin-info {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: var(--light-bg);
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
}

/* Contenu de page */
.page-content {
  flex: 1;
  padding: 32px;
}

/* Utilitaires */
.loading {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 200px;
  font-size: 18px;
  color: var(--text-secondary);
}

.loading::after {
  content: "";
  width: 24px;
  height: 24px;
  border: 3px solid var(--border-color);
  border-top-color: var(--primary-color);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-left: 12px;
}

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

/* Responsive */
@media (max-width: 768px) {
  :root {
    --sidebar-width: 70px;
  }

  .sidebar-header h2,
  .admin-badge,
  .nav-item span,
  .btn-logout span {
    display: none;
  }

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

  .page-content {
    padding: 16px;
  }
}