/* --- Reset & Base Styles --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Light Theme Colors */
  --bg-color: #f8f9fa;
  --sidebar-bg: #ffffff;
  --main-bg: #ffffff;
  --card-bg: #ffffff;
  --text-primary: #212529;
  --text-secondary: #6c757d;
  --accent-color: #006989; /* Exemple Resto Smart Primaire */
  --accent-light: #eafbed; /* Adaptation couleur */
  --border-color: #dee2e6;
  --shadow-color: rgba(0, 0, 0, 0.05);
  --icon-color: #495057;
  --kpi-revenue-bg: #fff3cd;
  --kpi-revenue-text: #856404;
  --kpi-orders-bg: #d4edda;
  --kpi-orders-text: #155724;
  --kpi-stock-bg: #f8d7da;
  --kpi-stock-text: #721c24;
  --kpi-average-bg: #d1ecf1;
  --kpi-average-text: #0c5460;
  --increase-color: #28a745;
  --decrease-color: #dc3545;
  --table-header-bg: #e9ecef;

  /* Spacing & Fonts */
  --sidebar-width: 250px;
  --header-height: 60px;
  --base-font-size: 16px;
  --font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  --card-padding: 1.5rem;
  --card-radius: 8px;
}

/* --- Dark Theme --- */
body.dark-mode {
  --bg-color: #1a1a1a;
  --sidebar-bg: #252526;
  --main-bg: #1e1e1e;
  --card-bg: #2d2d30;
  --text-primary: #d4d4d4;
  --text-secondary: #a0a0a0;
  --accent-color: #007acc; /* Ajustement pour contraste */
  --accent-light: #2a2d2e;
  --border-color: #444;
  --shadow-color: rgba(0, 0, 0, 0.2);
  --icon-color: #b0b0b0;
  /* Couleurs KPI pour mode sombre (à ajuster) */
  --kpi-revenue-bg: #5d4714;
  --kpi-revenue-text: #fff3cd;
  --kpi-orders-bg: #1f6431;
  --kpi-orders-text: #d4edda;
  --kpi-stock-bg: #721c24;
  --kpi-stock-text: #f8d7da;
  --kpi-average-bg: #0e5a68;
  --kpi-average-text: #d1ecf1;
  --table-header-bg: #3a3a3d;
}


body {
  font-family: var(--font-family);
  font-size: var(--base-font-size);
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

a {
  text-decoration: none;
  color: var(--accent-color);
}

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

/* --- Sidebar --- */
.sidebar {
  width: var(--sidebar-width);
  background-color: var(--sidebar-bg);
  display: flex;
  flex-direction: column;
  border-right: 1px solid var(--border-color);
  transition: background-color 0.3s ease;
  position: fixed; /* Ou sticky */
  left: 0;
  top: 0;
  bottom: 0;
  overflow: auto; /* Scroll si trop de contenu */
}

.sidebar-header {
  padding: 1.5rem 1rem;
  text-align: center;
  border-bottom: 1px solid var(--border-color);
}

.sidebar-header .logo {
  max-width: 80px;
  margin-bottom: 0.5rem;
}

.sidebar-header h2 {
  font-size: 1.2rem;
  color: var(--text-primary);
}

.sidebar-nav {
  flex-grow: 1;
  padding-top: 1rem;
}

.sidebar-nav ul {
  list-style: none;
}

.sidebar-nav li a {
  display: flex;
  align-items: center;
  padding: 0.9rem 1.5rem;
  color: var(--text-secondary);
  transition: background-color 0.2s ease, color 0.2s ease;
  font-size: 0.95rem;
}

.sidebar-nav li a i {
  margin-right: 0.8rem;
  width: 20px; /* Ensure alignment */
  text-align: center;
  color: var(--icon-color);
  transition: color 0.2s ease;
}

.sidebar-nav li.active a,
.sidebar-nav li a:hover {
  background-color: var(--accent-light);
  color: var(--accent-color);
  font-weight: 500;
}

.sidebar-nav li.active a i,
.sidebar-nav li a:hover i {
 color: var(--accent-color);
}


.sidebar-footer {
  padding: 1rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-secondary);
  border-top: 1px solid var(--border-color);
}


/* --- Main Content Area --- */
.main-content {
  flex-grow: 1;
  margin-left: var(--sidebar-width); /* Match sidebar width */
  display: flex;
  flex-direction: column;
}

/* --- Main Header --- */
.main-header {
  height: var(--header-height);
  background-color: var(--main-bg);
  border-bottom: 1px solid var(--border-color);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
  transition: background-color 0.3s ease;
}

.main-header h1 {
  font-size: 1.5rem;
  color: var(--text-primary);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-actions input[type="date"]{
  padding: 5px 8px;
  border-radius: var(--card-radius);
  border: 1px solid var(--border-color);
  background-color: var(--bg-color);
  color: var(--text-secondary);
}


.icon-button {
  background: none;
  border: none;
  color: var(--icon-color);
  font-size: 1.2rem;
  cursor: pointer;
  position: relative;
  padding: 5px;
}

.notification-badge {
  position: absolute;
  top: 0px;
  right: -2px;
  background-color: var(--decrease-color);
  color: white;
  font-size: 0.7rem;
  padding: 1px 5px;
  border-radius: 50%;
  font-weight: bold;
}


.user-profile {
  display: flex;
  align-items: center;
  position: relative; /* For dropdown positioning */
  cursor: pointer;
}

.user-profile .avatar {
  width: 35px;
  height: 35px;
  border-radius: 50%;
  margin-right: 0.5rem;
  object-fit: cover;
  border: 1px solid var(--border-color)
}

.user-profile span {
  font-weight: 500;
  color: var(--text-primary);
  margin-right: 0.3rem;
}
.user-profile i {
  font-size: 0.8rem;
   color: var(--text-secondary);
}


/* Simple Theme Switcher */
.theme-switcher {
display: flex;
align-items: center;
gap: 0.5rem;
}
.theme-icon {
  font-size: 1.1rem;
   color: var(--icon-color);
}
.theme-icon.sun { display: none; } /* Hide sun in light */
body.dark-mode .theme-icon.sun { display: inline-block; }
body.dark-mode .theme-icon.moon { display: none; } /* Hide moon in dark */

/* Basic Toggle Switch CSS */
.switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.switch input { opacity: 0; width: 0; height: 0; }
.slider { position: absolute; cursor: pointer; top: 0; left: 0; right: 0; bottom: 0; background-color: #ccc; transition: .4s; border-radius: 24px; }
.slider:before { position: absolute; content: ""; height: 18px; width: 18px; left: 3px; bottom: 3px; background-color: white; transition: .4s; border-radius: 50%; }
input:checked + .slider { background-color: var(--accent-color); }
input:focus + .slider { box-shadow: 0 0 1px var(--accent-color); }
input:checked + .slider:before { transform: translateX(20px); }


/* Profile Dropdown */
.profile-dropdown {
  display: none; /* Hidden by default */
  position: absolute;
  top: 100%; /* Position below the profile */
  right: 0;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  box-shadow: 0 4px 8px var(--shadow-color);
  padding: 0.5rem 0;
  min-width: 150px;
  z-index: 100;
}
.user-profile:hover .profile-dropdown { /* Show on hover - use JS for click */
  display: block;
}

.profile-dropdown a {
  display: block;
  padding: 0.7rem 1rem;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.profile-dropdown a:hover {
  background-color: var(--accent-light);
   color: var(--accent-color);
}

/* --- KPI Section --- */
.kpi-section {
  padding: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); /* Responsive grid */
  gap: 1.5rem;
}

.kpi-card {
  background-color: var(--card-bg);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: 0 2px 4px var(--shadow-color);
  border-left: 5px solid; /* Use specific color per card */
  transition: background-color 0.3s ease, transform 0.2s ease;
}
.kpi-card:hover {
   transform: translateY(-3px);
}

.kpi-card .card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.kpi-card h3 {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.kpi-card .card-icon {
  font-size: 1.5rem;
   opacity: 0.7;
}


.kpi-card .kpi-value {
  font-size: 2.2rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
   white-space: nowrap;
}

.kpi-card .kpi-comparison {
  font-size: 0.9rem;
}
.kpi-card .increase { color: var(--increase-color); }
.kpi-card .decrease { color: var(--decrease-color); }

.kpi-card .kpi-breakdown {
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* KPI Card Specific Colors */
.kpi-card.revenue { border-left-color: #ffc107; }
.kpi-card.orders { border-left-color: #28a745; }
.kpi-card.stock-alert { border-left-color: #dc3545; }
.kpi-card.average-check { border-left-color: #17a2b8; }

.kpi-card.revenue .card-icon { color: #ffc107; }
.kpi-card.orders .card-icon { color: #28a745; }
.kpi-card.stock-alert .card-icon { color: #dc3545; }
.kpi-card.average-check .card-icon { color: #17a2b8; }


.live-indicator {
  display: inline-block;
  width: 8px;
  height: 8px;
  background-color: var(--increase-color);
  border-radius: 50%;
  margin-left: 5px;
  animation: pulse 1.5s infinite ease-in-out;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.9); }
}

/* --- Charts & Tables Section --- */
.charts-tables-section {
  padding: 0 2rem 2rem 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.5rem;
}

.chart-card, .table-card, .activity-feed-card {
  background-color: var(--card-bg);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: 0 2px 4px var(--shadow-color);
  transition: background-color 0.3s ease;
}

.chart-card h3, .table-card h3, .activity-feed-card h3 {
  font-size: 1.1rem;
  margin-bottom: 1.5rem;
  color: var(--text-primary);
  font-weight: 600;
}

.chart-card canvas {
  max-height: 300px; /* Limit chart height */
}

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

.table-card th, .table-card td {
  text-align: left;
  padding: 0.8rem 0.5rem;
  border-bottom: 1px solid var(--border-color);
  font-size: 0.9rem;
}

.table-card th {
  font-weight: 600;
  color: var(--text-secondary);
  background-color: var(--table-header-bg);
  transition: background-color 0.3s ease;
}

.table-card td:nth-child(2), /* Quantity */
.table-card td:nth-child(3) /* Revenue */ {
  text-align: right;
  font-weight: 500;
}


/* Activity Feed Styles */
.activity-feed-card ul {
  list-style: none;
  max-height: 300px; /* Limit height & maybe add scroll */
  overflow-y: auto;
}

.activity-feed-card li {
  padding: 0.6rem 0;
  border-bottom: 1px dashed var(--border-color);
  font-size: 0.9rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}
.activity-feed-card li:last-child {
  border-bottom: none;
}
.activity-feed-card li i {
  font-size: 1rem;
}

.activity-feed-card .success { color: var(--increase-color); }
.activity-feed-card .warning { color: #ffc107; }
.activity-feed-card .danger { color: var(--decrease-color); }
.activity-feed-card .info { color: #17a2b8; }


/* --- Footer --- */
.main-footer {
   margin-top: auto; /* Pushes footer to bottom if content is short */
   padding: 1rem 2rem;
   text-align: center;
   font-size: 0.85rem;
   color: var(--text-secondary);
   border-top: 1px solid var(--border-color);
}


/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
  .dashboard-container {
      flex-direction: column;
  }
  .sidebar {
      width: 100%;
      height: auto;
      position: static;
      border-right: none;
      border-bottom: 1px solid var(--border-color);
       /* You might want JS to make sidebar collapsible on mobile */
       overflow-x: auto; /* Allow horizontal scroll */
  }
   .sidebar-header {
      text-align: left;
      padding: 1rem 1.5rem;
   }
    .sidebar-nav {
       display: flex; /* Horizontal scroll or wrap */
       overflow-x: auto;
       padding: 0.5rem 1rem;
    }
     .sidebar-nav ul {
       display: flex;
       gap: 0.5rem;
     }
     .sidebar-nav li a {
       padding: 0.6rem 0.8rem;
     }


  .main-content {
      margin-left: 0;
  }
  .main-header {
      padding: 0 1rem;
  }
   .main-header h1 {
      font-size: 1.3rem;
   }
    .user-profile span { display: none; } /* Hide name on mobile */

  .kpi-section {
      padding: 1rem;
      grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
      gap: 1rem;
  }
   .kpi-card .kpi-value { font-size: 1.8rem; }

  .charts-tables-section {
      padding: 0 1rem 1rem 1rem;
      grid-template-columns: 1fr; /* Stack elements */
       gap: 1rem;
  }
  .table-card { overflow-x: auto; } /* Add scroll for large tables */
}


/* --- Sidebar Submenu Styles (JS Accordion Version) --- */
.sidebar-nav .submenu {
  list-style: none;
  padding-left: 2.8rem; /* Indenter */
  margin: 0; /* Pas de marge quand fermé */
  max-height: 0;     /* Caché par défaut */
  overflow: hidden;
  transition: max-height 0.3s ease-out, margin 0.3s ease-out; /* Transition douce */
}

/* Styles des liens enfants (identique à l'approche 1) */
.sidebar-nav .submenu li a {
  padding: 0.6rem 1.5rem 0.6rem 0;
  font-size: 0.88rem;
  color: var(--text-secondary);
  opacity: 0.9;
  display: block; /* Important pour padding */
   transition: color 0.2s ease;
}
.sidebar-nav .submenu li.active a {
  color: var(--accent-color);
  font-weight: 600;
   background-color: transparent;
}
.sidebar-nav .submenu li a:hover {
  color: var(--accent-color);
  background-color: transparent;
}

/* Ajout de la flèche au lien parent */
.sidebar-nav li.has-submenu > a {
  position: relative; /* Nécessaire pour positionner la flèche */
  display: flex; /* Pour aligner icône, texte et flèche */
  justify-content: space-between; /* Pousse la flèche à droite */
  align-items: center;
}

.sidebar-nav li.has-submenu > a::after {
  content: '\f078'; /* Code Font Awesome pour chevron-down */
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.7rem;
  margin-left: auto; /* Pousse à droite */
  padding-left: 0.5rem; /* Espace avant la flèche */
  transition: transform 0.3s ease-out;
  color: var(--icon-color); /* Couleur de l'icône par défaut */
}
.sidebar-nav li.has-submenu > a:hover::after {
  color: var(--accent-color); /* Change couleur flèche au survol */
}

/* Rotation de la flèche quand le sous-menu est ouvert */
.sidebar-nav li.has-submenu.open > a::after {
   transform: rotate(-180deg);
}

/* Style parent actif (peut être identique ou différent de l'enfant actif) */
.sidebar-nav li.active-parent > a {
   color: var(--accent-color);
   font-weight: 500; /* Ou 600 */
   /* background-color: var(--accent-light); */ /* Optionnel: fond si parent est 'actif' */
}
/* Optionnel: Style différent pour le lien parent quand le sous-menu est ouvert mais qu'il n'est pas la page 'active' */
/* .sidebar-nav li.has-submenu.open > a { ... } */


/* Profile Dropdown */
.profile-dropdown {
  display: none; /* Caché par défaut */
  position: absolute;
  top: 100%;
  right: 0;
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--card-radius);
  box-shadow: 0 4px 8px var(--shadow-color);
  padding: 0.5rem 0;
  min-width: 150px;
  z-index: 100;
}
/* Classe ajoutée par JS pour afficher */
.profile-dropdown.show {
  display: block;
}

.profile-dropdown a {
  display: block;
  padding: 0.7rem 1rem;
  color: var(--text-primary);
  font-size: 0.9rem;
}
.profile-dropdown a:hover {
  background-color: var(--accent-light);
   color: var(--accent-color);
}


.form-control { /* Classe ajoutée via widget */
  display: block;
  width: 100%;
  padding: 0.65rem 0.75rem;
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--bg-color); /* Match footer */
  background-clip: padding-box;
  border: 1px solid var(--border-color);
  border-radius: 0.25rem;
  transition: border-color .15s ease-in-out,box-shadow .15s ease-in-out;
}
.invalid-feedback {
  color: #ff4c4c;
}