/* Sidebar Styles */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  width: 250px;
  background-color: #343a40;
  color: white;
  padding: 0;
  transition: transform 0.3s ease;
  z-index: 1000;
  overflow-y: auto;
}

.sidebar.collapsed {
  transform: translateX(-250px);
}

.sidebar-header {
  padding: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sidebar-header .navbar-brand {
  margin: 0;
  font-size: 1.5rem;
  color: white;
}

.sidebar-close {
  background: none;
  border: none;
  color: white;
  font-size: 2rem;
  cursor: pointer;
}

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

.sidebar-nav .nav-item {
  border-bottom: 1px solid rgba(255,255,255,0.05);
}

.sidebar-nav .nav-link {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  transition: all 0.2s;
}

.sidebar-nav .nav-link:hover {
  background-color: rgba(255,255,255,0.1);
  color: white;
}

.sidebar-nav .nav-link.active {
  background-color: #0d6efd;
  color: white;
}

.sidebar-nav .nav-link i {
  margin-right: 0.5rem;
  width: 20px;
  text-align: center;
}

.sidebar-footer {
  padding: 1rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  position: sticky;
  bottom: 0;
  background-color: #343a40;
}

/* Main Content Area */
.main-content {
  margin-left: 250px;
  min-height: 100vh;
  transition: margin-left 0.3s ease;

  /* Ensure content doesn't go under the toggle button */
  padding-top: 4rem;
  padding-left: 1rem;
  padding-right: 1rem;
}

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

/* Toggle Button Styling with Fade Effect */
.sidebar-toggle {
  position: fixed;
  top: 1rem;
  left: 1rem;
  z-index: 1001;
  background-color: #343a40;
  color: white;
  border: none;
  padding: 0.5rem 0.75rem;
  border-radius: 0.25rem;
  cursor: pointer;

  /* Transition for smooth fade */
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, visibility 0.3s ease;
  transform: scale(0.9);
}

/* Visible state */
.sidebar-toggle.visible {
  opacity: 1;
  visibility: visible;
  transform: scale(1);
}

/* Hide toggle button when sidebar is open */
.sidebar.show + .main-content .sidebar-toggle,
.sidebar.show ~ .main-content .sidebar-toggle {
  display: none !important;
}

/* Or use sibling selector if elements are adjacent */
.sidebar.show ~ .sidebar-toggle {
  display: none !important;
}

/* Desktop: Sidebar always visible */
@media (min-width: 768px) {
  .sidebar-close {
    display: none !important;
  }

  .sidebar-toggle {
    display: none !important;
  }

  .sidebar.collapsed {
    transform: translateX(-250px);
  }

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

/* Mobile: Sidebar hidden by default */
@media (max-width: 767px) {
  .sidebar {
    transform: translateX(-250px);
  }

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

  .main-content {
    margin-left: 0;
    padding-top: 4rem; /* Keep padding on mobile too */
  }
}