body {
    font-family: 'Poppins', sans-serif;
    background-color: #F4F7F6;
}

.sidebar {
    background-color: #2c3e50; /* Dark Blue-Gray */
    width: 250px;
}

.sidebar h4 {
    font-weight: 600;
}

.sidebar .nav-link {
    color: #ecf0f1; /* Light Gray */
    font-size: 1rem;
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    margin-bottom: 0.5rem;
    transition: background-color 0.3s ease;
}

.sidebar .nav-link.active, .sidebar .nav-link:hover {
    background-color: #34495e; /* Slightly Lighter Blue-Gray */
    color: #ffffff;
}

.sidebar .nav-link i {
    width: 20px;
    height: 20px;
}

.content {
    background-color: #F4F7F6;
}

.card {
    border: none;
    border-radius: 0.75rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.btn-primary {
    background-image: linear-gradient(to right, #4A90E2, #50E3C2);
    border: none;
    border-radius: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    transition: transform 0.2s ease;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.1);
}

.modal-content {
    border-radius: 0.75rem;
}

.form-control {
    border-radius: 0.5rem;
}