body {
background: linear-gradient(135deg, #f5f7fa 0%, #e4e7eb 100%);
min-height: 100vh;
display: flex;
flex-direction: column;
align-items: center;
justify-content: center;
padding: 20px;
}

.container {
max-width: 800px;
width: 100%;
background: white;
border-radius: 12px;
box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
overflow: hidden;
}

.header {
background: linear-gradient(135deg, #2c3e50 0%, #34495e 100%);
color: white;
padding: 25px;
text-align: center;
}

.header h1 {
font-size: 32px;
margin-bottom: 5px;
font-weight: 700;
}

.header p {
opacity: 0.9;
font-size: 18px;
}

.product-table {
width: 100%;
border-collapse: collapse;
}

.product-table tr {
border-bottom: 1px solid #e0e0e0;
}

.product-table tr:last-child {
border-bottom: none;
}

.product-table th {
background-color: #34495e;
color: white;
font-weight: 600;
text-align: left;
padding: 18px 25px;
width: 35%;
font-size: 17px;
}

.product-table td {
padding: 18px 25px;
color: #2c3e50;
font-size: 17px;
}

.product-table tr:nth-child(even) {
background-color: #f8f9fa;
}

.product-table tr:hover {
background-color: #eceff1;
transition: background-color 0.3s;
}

.icon-cell {
font-size: 20px;
color: #34495e;
margin-right: 12px;
width: 28px;
display: inline-block;
text-align: center;
}

.color-sample {
display: inline-block;
width: 20px;
height: 20px;
border-radius: 4px;
background-color: #000000;
margin-right: 10px;
vertical-align: middle;
border: 1px solid #e0e0e0;
}

.product-code {
font-family: 'Courier New', monospace;
background-color: #f5f7fa;
padding: 5px 10px;
border-radius: 4px;
border: 1px solid #e0e0e0;
}

@media (max-width: 768px) {
.product-table th,
.product-table td {
padding: 15px 20px;
font-size: 15px;
}

.header h1 {
font-size: 26px;
}

.header p {
font-size: 16px;
}
}

@media (max-width: 480px) {
.product-table th,
.product-table td {
padding: 12px 15px;
display: block;
width: 100%;
}

.product-table th {
background-color: #2c3e50;
border-bottom: 1px solid #1a2530;
text-align: center;
}

.product-table tr {
border-bottom: 2px solid #ccc;
}

.icon-cell {
margin-right: 8px;
}

.header {
padding: 20px 15px;
}

.header h1 {
font-size: 24px;
}
}