body {
  font-family: "Arial", sans-serif;
  background-color: #f8f9fa;
  color: #212529;
  overflow-x: hidden;
}

/* Sidebar */
.sidebar {
  height: 100vh;
  width: 260px;
  position: fixed;
  top: 0;
  left: 0;
  background-color: #ffffff;
  padding-top: 20px;
  border-right: 1px solid #ced4da;
  transition: width 0.3s ease;
  box-shadow: 2px 0 5px rgba(0, 0, 0, 0.05);
  z-index: 1000;
  overflow-y: auto;
}

.sidebar.collapsed {
  width: 80px;
}

/* Logo */
.sidebar .logo {
  padding: 15px;
  text-align: center;
  transition: padding 0.3s ease;
}

.sidebar .logo img {
  width: 180px;
  transition: width 0.3s ease;
}

.sidebar.collapsed .logo img {
  width: 40px;
}

/* Sidebar Links */
.sidebar .nav {
  padding-left: 0;
  margin-top: 10px;
}

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

.sidebar .nav-link {
  padding: 12px 20px;
  color: #495057;
  font-size: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-radius: 6px;
  transition: all 0.3s ease;
  text-decoration: none;
  margin-bottom: 4px;
}

.sidebar .nav-link:hover {
  background-color: #ced4da;
  color: #012970;
  transform: translateX(4px);
}

.sidebar .nav-link.active {
  background-color: #012970;
  color: #ffffff;
  box-shadow: inset 0 0 4px rgba(0, 0, 0, 0.1);
}

.sidebar .nav-link i {
  font-size: 20px;
  color: #495057;
  transition: color 0.3s ease;
}

.sidebar .nav-link.active i {
  color: #ffffff;
}

.sidebar.collapsed .nav-link {
  justify-content: center;
}

.sidebar.collapsed .nav-link span {
  display: none;
}

/* Main Content */
.main-content {
  margin-left: 280px;
  padding: 20px;
  transition: margin-left 0.3s ease;
}

.sidebar.collapsed + .main-content {
  margin-left: 100px;
}

/* Toggle Button */
.toggle-btn {
  position: fixed;
  top: 20px;
  left: 270px;
  background-color: #012970;
  color: #ffffff;
  border: none;
  padding: 8px 12px;
  border-radius: 5px;
  cursor: pointer;
  z-index: 1100;
  transition: background-color 0.3s ease, left 0.3s ease;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.sidebar.collapsed + .toggle-btn {
  left: 100px;
}

.toggle-btn:hover {
  background-color: #011f4b;
}

/* Full-Screen Form Card */
.card.form-card {
  width: 100%;
  max-width: none;
  border: 1px solid #ced4da;
  border-radius: 10px;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.05);
  padding: 20px;
  background-color: #ffffff;
  margin-bottom: 20px;
  transition: all 0.3s ease;
}

.card.form-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

/* Form Styling */
.form-label {
  font-weight: 600;
}

.form-control,
.form-select {
  border-radius: 5px;
  box-shadow: none;
  transition: all 0.2s ease-in-out;
}

.form-control:focus,
.form-select:focus {
  border-color: #012970;
  box-shadow: 0 0 5px rgba(1, 41, 112, 0.2);
}

/* Button Styling */
.btn-primary {
  background-color: #012970;
  border-color: #012970;
  font-weight: 600;
}

.btn-primary:hover {
  background-color: #011f4b;
  border-color: #011f4b;
}

.btn-secondary {
  background-color: #6c757d;
  border-color: #6c757d;
}

.btn-secondary:hover {
  background-color: #5a6268;
  border-color: #545b62;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .sidebar {
    width: 220px;
  }

  .sidebar.collapsed {
    width: 70px;
  }

  .sidebar .nav-link {
    padding: 10px;
  }

  .main-content {
    margin-left: 220px;
  }

  .sidebar.collapsed + .main-content {
    margin-left: 70px;
  }

  .toggle-btn {
    left: 240px;
  }
}

/* Time Slot Selection */
.time-slot {
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  text-align: center;
  cursor: pointer;
  width: 120px;
  display: inline-block;
  margin: 5px;
  font-weight: bold;
}

.time-slot.available {
  background-color: #28a745;
  color: white;
}

.time-slot.medium {
  background-color: #ff9800;
  color: white;
}

.time-slot.unavailable {
  background-color: #f9000059;
  color: white;
  cursor: not-allowed;
}