/* Styles du tableau de bord */
.dashboard {
  display: flex;
  min-height: 100vh;
  background: #f9fafb;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  font-weight: 500;
  font-size: 18px;
}

.sidebar {
  width: 250px;
  background: #111827;
  color: #ffffff;
  padding: 2rem 1rem;
  position: fixed;
  left: 0;
  top: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 1000;
  transition: transform 0.2s ease-in-out;
  transform: translateX(0);
}

.sidebar.hidden {
  transform: translateX(-100%);
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 999;
}

.sidebar-overlay.show {
  display: block;
}

.sidebar-toggle {
  display: none;
  background: transparent;
  border: none;
  color: #0066cc;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.5rem 0.75rem;
  margin-right: 1rem;
  transition: all 0.2s ease-in-out;
}

.sidebar-close {
  display: none;
  position: absolute;
  top: 12px;
  right: 12px;
  background: transparent;
  border: none;
  color: #ffffff;
  padding: 6px;
  cursor: pointer;
  z-index: 1010;
}

.sidebar-close svg {
  display: block;
}

.sidebar.show .sidebar-close {
  display: inline-flex;
}

.sidebar-toggle:hover {
  color: #004a99;
  transform: scale(1.1);
}

.sidebar-logo {
  font-size:20px;
  font-weight: 700;
  margin-bottom: 2rem;
  text-align: center;

}

.sidebar-menu {
  list-style: none;
  padding-left: 0;
  margin: 0;
}

.sidebar-menu li {
  margin-bottom: 1rem;
}

.sidebar-menu button {
  width: 100%;
  background: transparent;
  border: none;
  color: #d1d5db;
  text-align: left;
  font-size: 18px;
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
  font-weight: 500;
}

.sidebar-menu button:hover {
  background: #1f2937;
  color: #ffffff;
}

.sidebar-menu button.active {
  background: #0066cc;
  color: #ffffff;
}

.dashboard-content {
  flex: 1;
  margin-left: 250px;
  display: flex;
  flex-direction: column;
}

.dashboard-header {
  background: #ffffff;
  border-bottom: 1px solid #e5e7eb;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.main-content {
  flex: 1;
  padding: 2rem;
}

.view {
  display: none;
}

.view.active {
  display: block;
  animation: fadeIn 0.3s ease-in-out;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

.kpi-card {
  background: #ffffff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  text-align: center;
}

.kpi-value {
  font-size: 1.875rem;
  font-weight: 700;
  color: #0066cc;
  margin: 1rem 0;
}

.kpi-label {
  color: #4b5563;
  font-size: 0.875rem;
}

.charts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.chart-container {
  background: #ffffff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.chart-container h3 {
  margin-bottom: 1rem;
}

.clients-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.5rem;
  margin-bottom: 2rem;
}

.client-card {
  background: #ffffff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  border-left: 4px solid #0066cc;
}

.client-card h4 {
  margin-bottom: 0.5rem;
  color: #0066cc;
}

.client-card p {
  margin-bottom: 0.25rem;
}

.announcements-list {
  background: #ffffff;
  border-radius: 0.75rem;
  padding: 1.5rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.announcement-item {
  border-bottom: 1px solid #e5e7eb;
  padding: 1rem 0;
}

.announcement-item:last-child {
  border-bottom: none;
}

.announcement-date {
  font-size: 0.875rem;
  color: #9ca3af;
}

.stats-table {
  background: #ffffff;
  border-radius: 0.75rem;
  box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.logout-btn {
  background: #dc3545;
  color: #ffffff;
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.logout-btn:hover {
  background: #c0392b;
}

@media (max-width: 1024px) {
  .charts-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .sidebar {
    width: 250px;
    transform: translateX(-100%);
  }

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

  .sidebar-overlay {
    display: none;
  }

  .sidebar-overlay.show {
    display: block;
  }

  .sidebar-toggle {
    display: block;
  }

  .sidebar-toggle .line {
    display: block;
    width: 20px;
    height: 2px;
    background: currentColor;
    border-radius: 2px;
    margin: 3px 0;
    transform-origin: center;
    transition: transform 220ms 0.2s ease-in-out, opacity 180ms ease;
  }

  .sidebar-toggle:focus,
  .sidebar-toggle:hover {
    outline: none;
    box-shadow: 0 0 0 4px rgba(0, 102, 204, 0.08);
    border-radius: 6px;
  }

  .sidebar-toggle.open .line1 {
    transform: translateY(5px) rotate(45deg);
  }

  .sidebar-toggle.open .line2 {
    opacity: 0;
    transform: scaleX(0.6);
  }

  .sidebar-toggle.open .line3 {
    transform: translateY(-5px) rotate(-45deg);
  }

  .sidebar-overlay {
    opacity: 0;
    transition: opacity 220ms ease;
  }

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

  body.no-scroll {
    overflow: hidden;
  }

  .dashboard-content {
    margin-left: 0;
    width: 100%;
  }

  .sidebar.hidden ~ .dashboard-content,
  .sidebar:not(.show) ~ .dashboard-content {
    margin-left: 0;
  }

  .dashboard-header {
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }

  .dashboard-header h1 {
    flex: 1;
    font-size: 1.25rem;
    margin: 0;
  }

  .user-info {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
  }

  .user-info span {
    display: none;
  }

  .user-avatar {
    width: 35px;
    height: 35px;
    font-size: 0.875rem;
  }

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

  .main-content {
    padding: 1rem;
  }

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

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

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

/* Breakpoint 600px - Phablets */
@media (max-width: 600px) {
  .sidebar {
    width: 200px;
  }

  .sidebar-logo {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }

  .sidebar-menu button {
    padding: 0.65rem 0.875rem;
    font-size: 0.875rem;
  }

  .dashboard-header {
    padding: 0.875rem 0.75rem;
  }

  .dashboard-header h1 {
    font-size: 1.125rem;
  }

  .main-content {
    padding: 0.75rem;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .kpi-card {
    padding: 1.25rem;
  }

  .charts-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .chart-container {
    padding: 1.25rem;
  }

  .clients-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .client-card {
    padding: 1.25rem;
  }

  .announcements-list {
    padding: 1.25rem;
  }
}

/* Breakpoint 768px - Tablettes */
@media (max-width: 768px) and (min-width: 601px) {
  .sidebar {
    width: 240px;
  }

  .dashboard-header {
    padding: 1.25rem;
  }

  .main-content {
    padding: 1.5rem;
  }

  .kpi-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }

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

  .clients-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
  }
}

/* Breakpoint 820px - iPad Air */
@media (max-width: 820px) and (min-width: 769px) {
  .sidebar {
    width: 240px;
  }

  .dashboard-content {
    margin-left: 240px;
  }

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

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

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

/* Breakpoint 1920px+ - Grands écrans */
@media (min-width: 1921px) {
  .main-content {
    padding: 2.5rem;
  }

  .kpi-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }

  .charts-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
  }

  .clients-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
  }
}

/* Breakpoint 480px - Très petits mobiles */
@media (max-width: 480px) {
  .sidebar {
    width: 180px;
    padding: 1.5rem 0.75rem;
  }

  .sidebar-logo {
    font-size: 0.875rem;
    margin-bottom: 1rem;
  }

  .sidebar-menu li {
    margin-bottom: 0.75rem;
  }

  .sidebar-menu button {
    padding: 0.6rem 0.75rem;
    font-size: 0.8rem;
  }

  .dashboard-header {
    padding: 0.75rem 0.5rem;
    gap: 0.375rem;
  }

  .dashboard-header h1 {
    font-size: 1rem;
  }

  .user-avatar {
    width: 32px;
    height: 32px;
    font-size: 0.75rem;
  }

  .logout-btn {
    padding: 0.45rem 0.75rem;
    font-size: 0.75rem;
  }

  .main-content {
    padding: 0.65rem;
  }

  .kpi-grid {
    grid-template-columns: 1fr;
    gap: 0.875rem;
    margin-bottom: 1.5rem;
  }

  .kpi-card {
    padding: 1rem;
  }

  .kpi-value {
    font-size: 1.5rem;
  }

  .charts-grid {
    grid-template-columns: 1fr;
    gap: 0.875rem;
  }

  .chart-container {
    padding: 1rem;
  }

  .clients-grid {
    grid-template-columns: 1fr;
    gap: 0.875rem;
  }

  .client-card {
    padding: 1rem;
    border-left-width: 3px;
  }

  .announcements-list {
    padding: 1rem;
  }

  .announcement-item {
    padding: 0.75rem 0;
  }
}