/* Main Styles */
body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: #f8f9fa;
}

.main-content {
    min-height: calc(100vh - 200px);
}

/* Navbar */
.navbar-brand {
    font-weight: bold;
    font-size: 1.5rem;
}

.navbar-nav .nav-link {
    font-weight: 500;
}

/* Footer */
.footer {
    margin-top: auto;
}

.footer p {
    margin: 0;
}

/* Dashboard Cards */
.dashboard-card {
    background: white;
    transition: all 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-section {
        padding: 40px 0;
    }
    
    .error-code {
        font-size: 5rem;
    }
}