/* Inventory Management System Theme */
:root {
  --primary-color: #2c3e50;
  --secondary-color: #3498db;
  --accent-color: #e74c3c;
  --success-color: #2ecc71;
  --warning-color: #f39c12;
  --danger-color: #e74c3c;
  --light-color: #ecf0f1;
  --dark-color: #2c3e50;
  --gray-color: #95a5a6;
  --border-radius: 0.5rem;
  --box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.15);
  --transition: all 0.3s ease;
}

body {
  font-family: 'Poppins', sans-serif;
  background-color: #f8f9fa;
  color: #333;
}

/* Navbar Styling */
.navbar {
  background: linear-gradient(135deg, var(--primary-color), var(--dark-color)) !important;
  padding: 0.8rem 1rem;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.navbar-brand {
  font-weight: 700;
  font-size: 1.5rem;
  display: flex;
  align-items: center;
}

.navbar-brand i {
  margin-right: 0.5rem;
  font-size: 1.8rem;
}

/* Sidebar Styling */
.sidebar {
  background: linear-gradient(180deg, var(--primary-color), #34495e);
  box-shadow: var(--box-shadow);
  padding-top: 1rem;
  border-radius: 0 var(--border-radius) var(--border-radius) 0;
}

.sidebar .nav-link {
  color: rgba(255, 255, 255, 0.8);
  border-radius: var(--border-radius);
  margin: 0.2rem 0.7rem;
  padding: 0.8rem 1rem;
  transition: var(--transition);
}

.sidebar .nav-link:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: white;
  transform: translateX(5px);
}

.sidebar .nav-link.active {
  background-color: var(--secondary-color);
  color: white;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

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

/* Card Styling */
.card {
  border: none;
  border-radius: var(--border-radius);
  box-shadow: var(--box-shadow);
  transition: var(--transition);
  overflow: hidden;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 1rem 2rem rgba(0, 0, 0, 0.15);
}

.card-header {
  background-color: white;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  font-weight: 600;
}

.dashboard-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--border-radius);
}

.dashboard-card .card-body {
  z-index: 1;
  position: relative;
}

.dashboard-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.1;
  background: linear-gradient(45deg, transparent, var(--secondary-color));
}

.card-icon {
  font-size: 3rem;
  opacity: 0.8;
  position: absolute;
  right: 1rem;
  bottom: 1rem;
}

/* Stats Cards */
.stats-card {
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stats-card-primary {
  background: linear-gradient(135deg, #3498db, #2980b9);
  color: white;
}

.stats-card-success {
  background: linear-gradient(135deg, #2ecc71, #27ae60);
  color: white;
}

.stats-card-info {
  background: linear-gradient(135deg, #1abc9c, #16a085);
  color: white;
}

.stats-card-warning {
  background: linear-gradient(135deg, #f39c12, #e67e22);
  color: white;
}

.stats-info h3 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.stats-info span {
  font-size: 0.9rem;
  opacity: 0.9;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.stats-icon {
  font-size: 3rem;
  opacity: 0.8;
}

/* Tables */
.table {
  border-collapse: separate;
  border-spacing: 0;
}

.table th {
  background-color: #f8f9fa;
  font-weight: 600;
  text-transform: uppercase;
  font-size: 0.8rem;
  letter-spacing: 1px;
  color: var(--gray-color);
  border-top: none;
}

.table-hover tbody tr:hover {
  background-color: rgba(52, 152, 219, 0.05);
}

/* Badges */
.badge {
  padding: 0.5em 0.8em;
  font-weight: 500;
  border-radius: 30px;
}

/* Buttons */
.btn {
  border-radius: var(--border-radius);
  padding: 0.5rem 1.5rem;
  font-weight: 500;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--secondary-color);
  border-color: var(--secondary-color);
}

.btn-primary:hover {
  background-color: #2980b9;
  border-color: #2980b9;
  transform: translateY(-2px);
}

.btn-success {
  background-color: var(--success-color);
  border-color: var(--success-color);
}

.btn-success:hover {
  background-color: #27ae60;
  border-color: #27ae60;
  transform: translateY(-2px);
}

.btn-danger {
  background-color: var(--danger-color);
  border-color: var(--danger-color);
}

.btn-danger:hover {
  background-color: #c0392b;
  border-color: #c0392b;
  transform: translateY(-2px);
}

.btn-sm {
  padding: 0.25rem 0.5rem;
  font-size: 0.875rem;
}

/* Forms */
.form-control {
  border-radius: var(--border-radius);
  padding: 0.75rem 1rem;
  border: 1px solid #ddd;
}

.form-control:focus {
  border-color: var(--secondary-color);
  box-shadow: 0 0 0 0.25rem rgba(52, 152, 219, 0.25);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in {
  animation: fadeIn 0.5s ease forwards;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    top: 56px;
    left: 0;
    width: 100%;
    z-index: 1030;
    border-radius: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
  }
  
  .sidebar.show {
    transform: translateX(0);
  }
  
  .content {
    margin-top: 1rem;
  }
}

/* Custom scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: #f1f1f1;
}

::-webkit-scrollbar-thumb {
  background: var(--gray-color);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-color);
}

/* Loader animation */
.loader {
  width: 48px;
  height: 48px;
  border: 5px solid var(--light-color);
  border-bottom-color: var(--secondary-color);
  border-radius: 50%;
  display: inline-block;
  box-sizing: border-box;
  animation: rotation 1s linear infinite;
}

@keyframes rotation {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}