:root {
  
  --admin-font-family: 'Cabin', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --admin-font-size-base: 16px;
  --admin-font-size-sm: 0.875rem;
  --admin-font-size-lg: 1.125rem;
  --admin-font-size-xl: 1.25rem;
  --admin-font-size-2xl: 1.5rem;
  --admin-font-size-3xl: 2rem;
  
  
  --admin-color-primary: #2563eb;
  --admin-color-primary-dark: #1e40af;
  --admin-color-primary-light: #3b82f6;
  
  
  --admin-color-accent: #f59e0b;
  --admin-color-accent-dark: #d97706;
  
  
  --admin-color-text: #1f2937;
  --admin-color-text-light: #6b7280;
  --admin-color-text-lighter: #9ca3af;
  
  
  --admin-color-indigo-600: var(--admin-color-primary);
  --admin-color-indigo-700: var(--admin-color-primary-dark);
  --admin-color-indigo-800: var(--admin-color-primary-dark);
  
  
  --admin-color-white: #ffffff;
  --admin-color-black: var(--admin-color-text);
  
  
  --admin-color-grey-100: #f3f4f6;
  --admin-color-grey-200: #e5e7eb;
  --admin-color-grey-300: #d1d5db;
  --admin-color-grey-400: #9ca3af;
  --admin-color-grey-500: var(--admin-color-text-light);
  --admin-color-grey-600: #4b5563;
  --admin-color-grey-700: #374151;
  --admin-color-grey-800: #1f2937;
  --admin-color-grey-900: #111827;
  
  
  --admin-bg-primary: #ffffff;
  --admin-bg-secondary: #f9fafb;
  --admin-bg-light: #f9fafb;
  --admin-bg-tertiary: #f3f4f6;
  
  
  --admin-color-border: #e5e7eb;
  --admin-color-border-light: #f3f4f6;
  
  
  --admin-spacing-xs: 0.5rem;
  --admin-spacing-sm: 0.75rem;
  --admin-spacing-md: 1rem;
  --admin-spacing-lg: 1.5rem;
  --admin-spacing-xl: 2rem;
  --admin-spacing-2xl: 3rem;
  --admin-spacing-3xl: 4rem;
  
  
  --admin-border-radius-sm: 0.375rem;
  --admin-border-radius-md: 0.5rem;
  --admin-border-radius-lg: 0.75rem;
  --admin-border-radius-xl: 1rem;
  --admin-border-radius-full: 9999px;
  
  
  --admin-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --admin-shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --admin-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --admin-shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  
  
  --admin-transition-fast: 150ms ease;
  --admin-transition-normal: 250ms ease;
  --admin-transition-slow: 350ms ease;
  
  
  --color-grey-300: var(--admin-color-grey-300);
  --color-grey-500: var(--admin-color-grey-500);
  --color-indigo-600: var(--admin-color-indigo-600);
  --color-indigo-800: var(--admin-color-indigo-800);
  --spacing-xs: var(--admin-spacing-xs);
  --spacing-sm: var(--admin-spacing-sm);
  --spacing-md: var(--admin-spacing-md);
  --spacing-lg: var(--admin-spacing-lg);
  --spacing-xl: var(--admin-spacing-xl);
  --spacing-2xl: var(--admin-spacing-2xl);
  --border-radius-sm: var(--admin-border-radius-sm);
  --border-radius-md: var(--admin-border-radius-md);
  --border-radius-lg: var(--admin-border-radius-lg);
}


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

body {
  font-family: var(--admin-font-family);
  color: var(--admin-color-black);
  background-color: var(--admin-bg-secondary);
  font-size: var(--admin-font-size-base);
  line-height: 1.6;
  zoom: 0.75;
}


@media (max-width: 1024px) {
  body {
    zoom: 1;
  }
}


input[type="text"],
input[type="email"],
input[type="url"],
input[type="tel"],
input[type="number"],
input[type="date"],
input[type="time"],
input[type="password"],
textarea,
select {
  caret-color: var(--admin-color-primary) !important;
}


.admin-layout {
  display: flex;
  min-height: 100vh;
}


.admin-sidebar {
  width: 260px;
  background: linear-gradient(180deg, var(--admin-color-primary) 0%, var(--admin-color-primary-dark) 100%);
  color: var(--admin-color-white);
  padding: var(--admin-spacing-xl) var(--admin-spacing-lg);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  bottom: 0;
  overflow-y: auto;
  box-shadow: 2px 0 20px rgba(0, 0, 0, 0.1);
  z-index: 100;
}

.admin-logo {
  margin-bottom: var(--admin-spacing-2xl);
  padding-bottom: var(--admin-spacing-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}

.admin-logo img {
  display: block;
  margin: 0 auto var(--admin-spacing-md);
}

.admin-logo h2 {
  color: var(--admin-color-white);
  font-size: 1.125rem;
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.5px;
}

.btn-back-site {
  display: inline-block;
  margin-top: var(--admin-spacing-md);
  padding: 0.625rem 1.25rem;
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--admin-color-white);
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: var(--admin-border-radius-md);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--admin-transition-normal);
  text-align: center;
  width: 100%;
  box-sizing: border-box;
}

.btn-back-site:hover {
  background-color: rgba(255, 255, 255, 0.25);
  border-color: rgba(255, 255, 255, 0.4);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.admin-nav {
  display: flex;
  flex-direction: column;
  gap: var(--admin-spacing-xs);
  flex: 1;
  margin-bottom: var(--admin-spacing-lg);
}

.admin-nav a {
  color: rgba(255, 255, 255, 0.95);
  padding: 0.875rem var(--admin-spacing-md);
  border-radius: var(--admin-border-radius-md);
  transition: all var(--admin-transition-normal);
  font-size: 0.9375rem;
  font-weight: 500;
  display: block;
  text-decoration: none;
  border-left: 3px solid transparent;
}

.admin-nav a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--admin-color-white);
  border-left-color: rgba(255, 255, 255, 0.5);
  transform: translateX(2px);
}

.admin-nav a.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--admin-color-white);
  border-left-color: var(--admin-color-white);
  font-weight: 600;
}

.admin-nav-separator {
  height: 1px;
  background-color: rgba(255, 255, 255, 0.15);
  margin: var(--admin-spacing-lg) 0;
}

.admin-nav-settings {
  margin-top: auto;
  padding-top: var(--admin-spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
}

.admin-nav-settings a {
  color: rgba(255, 255, 255, 0.9);
  padding: 0.875rem var(--admin-spacing-md);
  border-radius: var(--admin-border-radius-md);
  transition: all var(--admin-transition-normal);
  font-size: 0.9375rem;
  font-weight: 500;
  display: block;
  text-decoration: none;
  border-left: 3px solid transparent;
  margin-bottom: var(--admin-spacing-sm);
}

.admin-nav-settings a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--admin-color-white);
  border-left-color: rgba(255, 255, 255, 0.5);
  transform: translateX(2px);
}

.admin-nav-settings a.active {
  background-color: rgba(255, 255, 255, 0.15);
  color: var(--admin-color-white);
  border-left-color: var(--admin-color-white);
  font-weight: 600;
}

.btn-logout {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--admin-color-white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  padding: 0.875rem var(--admin-spacing-md);
  border-radius: var(--admin-border-radius-md);
  cursor: pointer;
  transition: all var(--admin-transition-normal);
  text-align: center;
  text-decoration: none;
  display: block;
  font-size: 0.9375rem;
  font-weight: 500;
  margin-top: var(--admin-spacing-md);
  font-family: var(--admin-font-family);
}

.btn-logout:hover {
  background-color: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-1px);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}


.admin-main {
  flex: 1;
  margin-left: 260px;
  padding: var(--admin-spacing-xl);
  background-color: var(--admin-bg-secondary);
  min-height: 100vh;
}

.admin-header {
  margin-bottom: var(--admin-spacing-lg);
}

.admin-header h1 {
  color: var(--admin-color-primary-dark);
  font-size: 1.75rem;
  font-weight: 700;
  margin-bottom: var(--admin-spacing-xs);
}

.admin-content {
  background-color: var(--admin-color-white);
  padding: var(--admin-spacing-xl);
  border-radius: var(--admin-border-radius-xl);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
  border: 1px solid var(--admin-color-border);
}


.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--admin-spacing-md);
  margin-top: var(--admin-spacing-lg);
}

.dashboard-card {
  background-color: var(--admin-color-white);
  padding: var(--admin-spacing-xl);
  border-radius: var(--admin-border-radius-lg);
  text-align: center;
  border: 1px solid var(--admin-color-border);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
  transition: all var(--admin-transition-normal);
}

.dashboard-card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  transform: translateY(-2px);
}

.dashboard-card h3 {
  color: var(--admin-color-primary-dark);
  margin-bottom: var(--admin-spacing-sm);
  font-size: 1rem;
  font-weight: 700;
}

.stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--admin-color-primary);
  margin-bottom: var(--admin-spacing-xs);
}


.admin-form {
  display: flex;
  flex-direction: column;
  gap: var(--admin-spacing-md);
  margin-bottom: var(--admin-spacing-lg);
  padding: var(--admin-spacing-xl);
  background-color: var(--admin-bg-light);
  border-radius: var(--admin-border-radius-lg);
  border: 1px solid var(--admin-color-border);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--admin-spacing-xs);
}

.form-group label {
  color: var(--admin-color-primary-dark);
  font-weight: 600;
  font-size: 0.9375rem;
}

.form-group input,
.form-group textarea,
.form-group select {
  padding: 0.875rem;
  border: 1px solid var(--admin-color-border);
  border-radius: var(--admin-border-radius-md);
  font-size: 0.9375rem;
  font-family: var(--admin-font-family);
  transition: all var(--admin-transition-normal);
  background-color: var(--admin-color-white);
  color: var(--admin-color-text);
  caret-color: var(--admin-color-primary);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--admin-color-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
  caret-color: var(--admin-color-primary);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--admin-spacing-md);
}

.form-actions {
  display: flex;
  gap: var(--admin-spacing-sm);
  margin-top: var(--admin-spacing-md);
}


.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--admin-border-radius-md);
  font-weight: 600;
  font-size: 0.9375rem;
  text-align: center;
  transition: all var(--admin-transition-normal);
  text-decoration: none;
  cursor: pointer;
  border: none;
  font-family: var(--admin-font-family);
}

.btn-primary {
  background-color: var(--admin-color-primary);
  color: var(--admin-color-white);
  box-shadow: 0 2px 4px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
  background-color: var(--admin-color-primary-dark);
  box-shadow: 0 4px 8px rgba(37, 99, 235, 0.3);
  transform: translateY(-1px);
}

.btn-secondary {
  background-color: transparent;
  color: var(--admin-color-primary);
  border: 2px solid var(--admin-color-primary);
}

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

.btn-danger {
  background-color: #dc3545;
  color: var(--admin-color-white);
}

.btn-danger:hover {
  background-color: #c82333;
}

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


.admin-table-container {
  overflow-x: auto;
  margin-top: var(--admin-spacing-lg);
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

.admin-table th,
.admin-table td {
  padding: var(--admin-spacing-sm);
  text-align: left;
  border-bottom: 1px solid var(--admin-color-grey-300);
}

.admin-table th {
  background-color: var(--admin-bg-secondary);
  font-weight: 700;
  color: var(--admin-color-primary-dark);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.admin-table tr:hover {
  background-color: var(--admin-bg-secondary);
}

.admin-table tr.unread {
  background-color: #fff3cd;
}


.admin-message {
  padding: var(--admin-spacing-sm) var(--admin-spacing-md);
  border-radius: var(--admin-border-radius-md);
  margin-bottom: var(--admin-spacing-md);
  font-size: 0.9375rem;
  border: 1px solid;
}

.admin-message.success {
  background-color: #d4edda;
  color: #155724;
  border-color: #c3e6cb;
}

.admin-message.error {
  background-color: #f8d7da;
  color: #721c24;
  border-color: #f5c6cb;
}


.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  background-color: var(--admin-bg-secondary);
}

.login-box {
  background-color: var(--admin-color-white);
  padding: var(--admin-spacing-2xl);
  border-radius: var(--admin-border-radius-lg);
  box-shadow: var(--admin-shadow-md);
  width: 100%;
  max-width: 400px;
  border: 1px solid var(--admin-color-grey-300);
}

.login-box h1 {
  text-align: center;
  margin-bottom: var(--admin-spacing-xl);
  color: var(--admin-color-primary-dark);
  font-size: 1.75rem;
}


.admin-tabs {
  margin-top: var(--admin-spacing-lg);
}

.admin-tabs-nav {
  display: flex;
  gap: var(--admin-spacing-xs);
  border-bottom: 2px solid var(--admin-color-border);
  margin-bottom: var(--admin-spacing-xl);
  overflow-x: auto;
}

.admin-tab-btn {
  padding: var(--admin-spacing-md) var(--admin-spacing-xl);
  background-color: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--admin-color-text-light);
  font-weight: 500;
  font-size: 0.9375rem;
  cursor: pointer;
  transition: all var(--admin-transition-normal);
  font-family: var(--admin-font-family);
  margin-bottom: -2px;
  white-space: nowrap;
  position: relative;
}

.admin-tab-btn:hover {
  color: var(--admin-color-primary);
  background-color: var(--admin-bg-light);
}

.admin-tab-btn.active {
  color: var(--admin-color-primary);
  border-bottom-color: var(--admin-color-primary);
  background-color: transparent;
  font-weight: 600;
}

.admin-tabs-content {
  position: relative;
}

.admin-tab-pane {
  display: none;
}

.admin-tab-pane.active {
  display: block;
  animation: fadeIn 0.3s ease-in;
}

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


.admin-subtabs {
  margin-top: var(--admin-spacing-lg);
}

.admin-subtabs-nav {
  display: flex;
  gap: var(--admin-spacing-xs);
  border-bottom: 2px solid var(--admin-color-border);
  margin-bottom: var(--admin-spacing-lg);
  overflow-x: auto;
}

.admin-subtab-btn {
  padding: var(--admin-spacing-sm) var(--admin-spacing-lg);
  background-color: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: var(--admin-color-text-light);
  font-weight: 500;
  font-size: 0.875rem;
  cursor: pointer;
  transition: all var(--admin-transition-normal);
  font-family: var(--admin-font-family);
  margin-bottom: -2px;
  white-space: nowrap;
  position: relative;
}

.admin-subtab-btn:hover {
  color: var(--admin-color-primary);
  background-color: var(--admin-bg-light);
}

.admin-subtab-btn.active {
  color: var(--admin-color-primary);
  border-bottom-color: var(--admin-color-primary);
  background-color: transparent;
  font-weight: 600;
}

.admin-subtabs-content {
  position: relative;
}

.admin-subtab-pane {
  display: none;
}

.admin-subtab-pane.active {
  display: block;
  animation: fadeIn 0.3s ease-in;
}


.admin-mobile-toggle {
  display: none;
  position: fixed;
  top: var(--admin-spacing-md);
  left: var(--admin-spacing-md);
  z-index: 101;
  background-color: var(--admin-color-primary);
  color: var(--admin-color-white);
  border: none;
  width: 44px;
  height: 44px;
  border-radius: var(--admin-border-radius-md);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
  box-shadow: var(--admin-shadow-md);
  transition: all var(--admin-transition-normal);
}

.admin-mobile-toggle:hover {
  background-color: var(--admin-color-primary-dark);
  transform: scale(1.05);
}

.admin-mobile-toggle span {
  width: 20px;
  height: 2px;
  background-color: var(--admin-color-white);
  border-radius: 2px;
  transition: all var(--admin-transition-normal);
}

.admin-mobile-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.admin-mobile-toggle.active span:nth-child(2) {
  opacity: 0;
}

.admin-mobile-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -6px);
}


.admin-sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 99;
  opacity: 0;
  transition: opacity var(--admin-transition-normal);
}

.admin-sidebar-overlay.active {
  display: block;
  opacity: 1;
}


@media (max-width: 768px) {
  .admin-sidebar {
    width: 280px;
    padding: var(--admin-spacing-lg) var(--admin-spacing-md);
  }

  .admin-main {
    margin-left: 0;
    padding: var(--admin-spacing-md);
    padding-top: calc(var(--admin-spacing-md) + 44px + var(--admin-spacing-md));
  }

  .form-row {
    grid-template-columns: 1fr;
  }

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

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

  .admin-header h1 {
    font-size: var(--admin-font-size-2xl);
  }

  .admin-tabs-nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .admin-tab-btn {
    padding: var(--admin-spacing-sm) var(--admin-spacing-md);
    font-size: var(--admin-font-size-sm);
    min-width: auto;
  }

  .admin-subtabs-nav {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
  }

  .admin-subtab-btn {
    padding: var(--admin-spacing-xs) var(--admin-spacing-md);
    font-size: var(--admin-font-size-sm);
  }

  .admin-table-container {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .admin-table {
    min-width: 600px;
  }

  .form-group input,
  .form-group textarea,
  .form-group select {
    font-size: 16px; 
    min-height: 44px;
  }

  .btn {
    min-height: 44px;
    padding: var(--admin-spacing-md) var(--admin-spacing-lg);
  }
}

@media (max-width: 640px) {
  .admin-mobile-toggle {
    display: flex;
  }

  .admin-sidebar {
    transform: translateX(-100%);
    transition: transform var(--admin-transition-normal);
    z-index: 100;
  }

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

  .admin-main {
    margin-left: 0;
    padding: var(--admin-spacing-md);
    padding-top: calc(var(--admin-spacing-md) + 44px + var(--admin-spacing-md));
  }

  .admin-content {
    padding: var(--admin-spacing-md);
  }

  .admin-header h1 {
    font-size: var(--admin-font-size-xl);
  }

  .admin-tabs-nav {
    gap: var(--admin-spacing-xs);
  }

  .admin-tab-btn {
    padding: var(--admin-spacing-sm) var(--admin-spacing-sm);
    font-size: var(--admin-font-size-sm);
  }

  .horaire-row {
    grid-template-columns: 1fr !important;
    gap: var(--admin-spacing-sm) !important;
  }

  .horaire-row > div:first-child {
    grid-column: 1 / -1;
    font-weight: 600;
    margin-bottom: var(--admin-spacing-xs);
  }

  .horaire-row .form-group {
    margin-bottom: var(--admin-spacing-sm) !important;
  }

  .horaire-row > div:last-child {
    grid-column: 1 / -1;
    justify-self: start;
    margin-top: var(--admin-spacing-xs);
  }
}