:root {
    --bs-primary: #3B82F6; /* A more modern blue */
    --bs-primary-rgb: 59, 130, 246;
    --primary-color: var(--bs-primary);
    --sidebar-bg: #f0f7ff; /* Light blue background */
    --sidebar-text-color: #343a40; /* Dark text */
    --sidebar-hover-bg: #d6e8ff; /* Slightly darker blue for hover */
    --sidebar-active-color: #ffffff; /* White text for active item */
    --main-bg: #f8f9fa;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--main-bg);
    color: #212529;
}

#wrapper {
    display: flex;
    transition: all 0.3s ease;
}

#sidebar-wrapper {
    background-color: var(--sidebar-bg);
    min-height: 100vh;
    width: 250px;
    transition: margin 0.3s ease;
}

#wrapper.toggled #sidebar-wrapper {
    margin-left: -250px;
}

.sidebar-heading {
    padding: 1.5rem 1.25rem;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color); /* Primary color for heading */
    border-bottom: 1px solid #d6e8ff; /* Light border */
}

#sidebar-wrapper .list-group-item {
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text-color);
    border: none;
    padding: 1rem 1.25rem;
    font-weight: 500;
    transition: all 0.2s ease-in-out;
}

#sidebar-wrapper .list-group-item:hover {
    background-color: var(--sidebar-hover-bg);
    color: var(--primary-color); /* Darker text on hover */
    transform: translateX(5px);
}

#sidebar-wrapper .list-group-item.active {
    background-color: var(--primary-color);
    color: var(--sidebar-active-color);
    border-left: 4px solid #ffffff;
}

#page-content-wrapper {
    width: calc(100% - 250px);
    transition: width 0.3s ease;
}

#wrapper.toggled #page-content-wrapper {
    width: 100%;
}

.navbar {
    padding: 0.8rem 1rem;
}

.card {
    border: none;
    border-radius: 0.5rem;
    box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.05);
}

.card-header {
    background-color: #fff;
    border-bottom: 1px solid #dee2e6;
    font-weight: 600;
    padding: 1rem 1.25rem;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    font-weight: 500;
    transition: all 0.2s ease;
}

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    #sidebar-wrapper {
        margin-left: -250px;
    }
    #wrapper.toggled #sidebar-wrapper {
        margin-left: 0;
    }
    #page-content-wrapper {
        width: 100%;
    }
    #wrapper.toggled #page-content-wrapper {
        position: relative;
        margin-left: 250px;
    }
}

.auth-body-bg {
    background-color: var(--main-bg);
}