:root {
    --primary-color: #0d6efd;
    --primary-dark: #0a58ca;
    --secondary-color: #6c757d;
    --bg-color: #f8f9fa;
    --text-main: #333333;
    --text-muted: #6c757d;
    --card-bg: rgba(255, 255, 255, 0.95);
    --border-color: #e9ecef;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
}

/* Glassmorphism utility */
.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

.slide-up {
    animation: slideUp 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

/* Custom buttons */
.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: 0 4px 8px rgba(13, 110, 253, 0.3);
}

/* Sidebar for dashboard */
.sidebar {
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
    z-index: 100;
    padding: 48px 0 0; 
    box-shadow: inset -1px 0 0 rgba(0, 0, 0, .1);
    background-color: white;
}

.sidebar .nav-link {
    font-weight: 500;
    color: #333;
    padding: 0.5rem 1rem;
    margin: 0.2rem 1rem;
    border-radius: 8px;
    transition: all 0.2s;
}

.sidebar .nav-link:hover, .sidebar .nav-link.active {
    background-color: rgba(13, 110, 253, 0.1);
    color: var(--primary-color);
}

.main-content {
    margin-left: 16.66667%; /* matches col-md-2 */
    padding: 20px;
}