body { 
    font-family: 'Plus Jakarta Sans', sans-serif; 
    background-color: #f8fafc; 
    color: #1e293b; 
}

.sidebar { 
    min-width: 260px; 
    height: 100vh; 
    background: #ffffff; 
    border-right: 1px solid #e2e8f0; 
    position: fixed; 
}

.main-content { 
    margin-left: 260px; 
    padding: 40px; 
    min-height: 100vh; 
}

.nav-link { 
    color: #64748b; 
    padding: 12px 20px; 
    border-radius: 10px; 
    margin: 5px 15px; 
    transition: 0.3s; 
    text-decoration: none; 
    display: block; 
}

.nav-link:hover { 
    background: #f1f5f9; 
    color: #0f172a; 
}

.nav-link.active { 
    background: #0f172a; 
    color: #fff !important; 
}

.card-interactive { 
    border: none; 
    border-radius: 20px; 
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1); 
    cursor: pointer; 
    text-decoration: none;
    color: inherit;
}

.card-interactive:hover { 
    transform: translateY(-10px); 
    box-shadow: 0 20px 25px -5px rgba(0,0,0,0.1); 
    background-color: #ffffff;
}

.lang-btn { 
    cursor: pointer; 
    font-size: 0.9rem; 
    font-weight: 600; 
}

/* Responsiveness */
@media (max-width: 991px) { 
    .sidebar { display: none; } 
    .main-content { margin-left: 0; } 
}