:root {
    --primary-color: #2c7be5;
    --primary-hover: #1a68d1;
    --sidebar-bg: #1a202e;
    --sidebar-text: #e2e8f0;
    --body-bg: #f0f4f8;
}

body {
    background-color: var(--body-bg);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Override Bootstrap Primary Button */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}

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

/* Sidebar Styling */
.sidebar-wrapper {
    background-color: var(--sidebar-bg);
    color: var(--sidebar-text);
}

.sidebar-link {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    padding: 10px 15px;
    display: block;
    border-radius: 5px;
    transition: all 0.2s;
}

.sidebar-link:hover, .sidebar-link.active {
    color: #fff;
    background-color: rgba(255,255,255,0.1);
}

/* Make sidebar sticky on desktop */
@media (min-width: 992px) {
    .sidebar-wrapper.offcanvas-lg {
        position: -webkit-sticky; /* For Safari */
        position: sticky;
        top: 0;
        height: 100vh;
        width: 240px;
        align-self: flex-start; /* Needed for sticky in a flex container (row) */
    }
}