html, body {
    font-family: 'Helvetica Neue', Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f5f5f5;
}

h1, h2, h3, h4, h5, h6 {
    margin-top: 0;
}

.btn {
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background-color: #007bff;
    color: white;
}

.btn-primary:hover {
    background-color: #0056b3;
}

.btn-success {
    background-color: #28a745;
    color: white;
}

.btn-success:hover {
    background-color: #218838;
}

.btn-danger {
    background-color: #dc3545;
    color: white;
}

.btn-danger:hover {
    background-color: #c82333;
}

.btn-secondary {
    background-color: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background-color: #5a6268;
}

.card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
    margin-bottom: 16px;
    padding: 20px;
}

.status-badge {
    display: inline-block;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
}

.status-pending {
    background-color: #ffc107;
    color: #000;
}

.status-inprogress {
    background-color: #17a2b8;
    color: white;
}

.status-delivered {
    background-color: #28a745;
    color: white;
}

.status-cancelled {
    background-color: #dc3545;
    color: white;
}

@media (max-width: 640px) {
    .card {
        margin: 8px;
        padding: 16px;
    }
}