body {
    background-color: #f5f6fa;
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

.navbar {
    background: linear-gradient(135deg, #1e293b, #334155) !important;
}

.card-transportadora {
    transition: transform 0.15s ease, box-shadow 0.15s ease;
    border-left: 4px solid #3b82f6;
}

.card-transportadora:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0,0,0,0.1);
}

.card-total {
    border-left: 4px solid #3b82f6;
}

.card-devolucao {
    border-left: 4px solid #ef4444;
}

.table th {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: #64748b;
    border-bottom-width: 1px;
}

.table td {
    font-size: 0.875rem;
    vertical-align: middle;
}

.badge {
    font-weight: 500;
    font-size: 0.75rem;
}

.btn-periodo {
    font-size: 0.8rem;
}

.form-control, .form-select {
    font-size: 0.9rem;
}