* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    padding: 20px;
    background-color: #f5f5f5;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

h1 {
    color: #333;
    margin-bottom: 20px;
    text-align: center;
}

h2 {
    color: #444;
    margin-bottom: 15px;
}

.section {
    margin-bottom: 30px;
    padding: 20px;
    background-color: #fff;
    border-radius: 4px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.controls {
    margin-bottom: 15px;
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

select, button {
    padding: 8px 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
}

button {
    background-color: #007bff;
    color: white;
    border: none;
    cursor: pointer;
    transition: background-color 0.2s;
}

button:hover {
    background-color: #0056b3;
}

.orders-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 15px;
}

.order-card {
    padding: 15px;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
}

.order-card h3 {
    margin-bottom: 10px;
    color: #333;
}

.order-card p {
    margin-bottom: 5px;
    color: #666;
}

.label-options {
    margin-top: 10px;
    padding: 10px;
    background-color: #f8f9fa;
    border-radius: 4px;
}

@media (max-width: 768px) {
    .controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    select, button {
        width: 100%;
    }
}

/* Transaction Page Styles */
.transaction-form {
    max-width: 800px;
    margin: 0 auto;
}

.transaction-form .form-group {
    margin-bottom: 1.5rem;
}

.transaction-form label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.transaction-form .form-control {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.transaction-form .btn-add {
    margin-left: 0.5rem;
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
}

.transaction-form .items-section {
    margin-top: 2rem;
    padding: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.transaction-list {
    margin-top: 2rem;
}

.transaction-card {
    padding: 1rem;
    margin-bottom: 1rem;
    border: 1px solid #ddd;
    border-radius: 4px;
    background-color: white;
}

.transaction-card h3 {
    margin-bottom: 0.5rem;
    color: #333;
}

.transaction-card p {
    margin-bottom: 0.25rem;
    color: #666;
}

/* Modal Styles */
.modal-content {
    border-radius: 8px;
}

.modal-header {
    border-bottom: 1px solid #dee2e6;
    padding: 1rem;
}

.modal-body {
    padding: 1.5rem;
}

.modal-footer {
    border-top: 1px solid #dee2e6;
    padding: 1rem;
}

/* Dark Mode Support */
body.dark-mode {
    background-color: #1a1a1a;
    color: #ffffff;
}

body.dark-mode .container {
    background-color: #2d2d2d;
}

body.dark-mode .transaction-card {
    background-color: #2d2d2d;
    border-color: #404040;
}

body.dark-mode .transaction-card h3 {
    color: #ffffff;
}

body.dark-mode .transaction-card p {
    color: #b3b3b3;
}

body.dark-mode .modal-content {
    background-color: #2d2d2d;
    color: #ffffff;
}

body.dark-mode .modal-header,
body.dark-mode .modal-footer {
    border-color: #404040;
}

body.dark-mode .form-control {
    background-color: #404040;
    border-color: #505050;
    color: #ffffff;
}

body.dark-mode .form-control:focus {
    background-color: #404040;
    border-color: #007bff;
    color: #ffffff;
}