body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f8f9fa;
    color: #333;
}

header {
    background-color: #007bff;
    color: white;
    padding: 1em 2em;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

header h1 {
    margin: 0;
    font-size: 1.8em;
}

header nav ul {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
}

header nav ul li {
    margin-left: 20px;
}

header nav ul li a {
    color: white;
    text-decoration: none;
    font-weight: bold;
    padding: 5px 10px;
    border-radius: 4px;
    transition: background-color 0.3s ease;
}

header nav ul li a:hover {
    background-color: #0056b3;
}

header nav ul li span {
    color: rgba(255, 255, 255, 0.8);
    font-size: 0.9em;
}

main {
    padding: 2em;
    max-width: 1200px;
    margin: 20px auto;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.05);
}

footer {
    text-align: center;
    padding: 1em;
    margin-top: 20px;
    background-color: #f1f1f1;
    color: #555;
    border-top: 1px solid #e7e7e7;
}

h2, h3 {
    color: #007bff;
    border-bottom: 2px solid #e9ecef;
    padding-bottom: 0.5em;
    margin-bottom: 1em;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5em;
}

.data-table th, .data-table td {
    border: 1px solid #dee2e6;
    padding: 12px 15px;
    text-align: left;
}

.data-table th {
    background-color: #e9ecef;
    font-weight: bold;
    color: #495057;
}

.data-table tbody tr:nth-child(even) {
    background-color: #f2f2f2;
}

.data-table tbody tr:hover {
    background-color: #e2f0ff;
}

.data-table a {
    color: #007bff;
    text-decoration: none;
}

.data-table a:hover {
    text-decoration: underline;
}

.form-container {
    background-color: #fff;
    padding: 2em;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    margin-bottom: 2em;
}

.form-group {
    margin-bottom: 1em;
}

.form-group label {
    display: block;
    margin-bottom: 0.5em;
    font-weight: bold;
    color: #555;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group input[type="number"],
.form-group select {
    width: calc(100% - 22px); /* Account for padding and border */
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-size: 1em;
}

.form-group button {
    background-color: #28a745;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1em;
    transition: background-color 0.3s ease;
}

.form-group button:hover {
    background-color: #218838;
}

button[type="submit"] {
    background-color: #007bff;
    color: white;
    padding: 10px 20px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1.1em;
    transition: background-color 0.3s ease;
}

button[type="submit"]:hover {
    background-color: #0056b3;
}

.order-card {
    border: 1px solid #e9ecef;
    border-radius: 8px;
    padding: 1.5em;
    margin-bottom: 1.5em;
    background-color: #fefefe;
    box-shadow: 0 2px 5px rgba(0,0,0,0.03);
}

.order-card h3 {
    margin-top: 0;
    color: #0056b3;
}

.product-item {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    border: 1px solid #e0e0e0;
    padding: 10px;
    border-radius: 5px;
    background-color: #f9f9f9;
}

.product-item label {
    margin-bottom: 0;
    flex-shrink: 0;
}

.product-item select,
.product-item input[type="number"] {
    flex-grow: 1;
    width: auto;
}

.remove-product {
    background-color: #dc3545;
    color: white;
    border: none;
    padding: 8px 12px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s ease;
    flex-shrink: 0;
}

.remove-product:hover {
    background-color: #c82333;
}

/* Specific styles for forms */
.form-container hr {
    margin: 2em 0;
    border: 0;
    border-top: 1px solid #eee;
}