:root {
    --primary-color: #2c3e50;
    --secondary-color: #34495e;
    --accent-color: #3498db;
    --text-color: #2c3e50;
    --light-bg: #f5f6fa;
}

body {
    font-family: 'Poppins', sans-serif;
    background: var(--light-bg);
}

/* Navbar Styling */
nav.navbar {
    background: white !important;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    border-bottom: 2px solid var(--accent-color);
    padding: 0.6rem 1.2rem;
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
    font-size: 1.1rem;
}

.navbar-nav .nav-link {
    color: var(--text-color) !important;
    margin: 0 0.3rem;
    transition: all 0.3s ease;
    font-weight: 500;
    font-size: 0.85rem;
}

.navbar-nav .nav-link:hover {
    color: var(--accent-color) !important;
}

.navbar-nav .nav-link.active {
    color: var(--accent-color) !important;
    border-bottom: 3px solid var(--accent-color);
}

/* Sidebar Toggle Button */
.sidebar-toggle-btn {
    background: var(--accent-color);
    color: white;
    border: none;
    padding: 0.4rem 0.8rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 0.85rem;
    margin-right: 0.8rem;
}

.sidebar-toggle-btn:hover {
    background: var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.sidebar-toggle-btn i {
    margin-right: 0.5rem;
}