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

body {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
    padding: 20px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

h1 {
    text-align: center;
    margin-bottom: 20px;
    color: #2c3e50;
}

.input-area {
    margin-bottom: 20px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

textarea {
    width: 100%;
    height: 150px;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    resize: vertical;
    font-family: inherit;
    font-size: 14px;
}

button {
    padding: 10px 15px;
    background-color: #3498db;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    transition: background-color 0.3s;
}

button:hover {
    background-color: #2980b9;
}

#clearBtn {
    background-color: #e74c3c;
}

#clearBtn:hover {
    background-color: #c0392b;
}

.result-area {
    margin-top: 20px;
}

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 20px;
    margin-bottom: 20px;
}

.spinner {
    border: 4px solid rgba(0, 0, 0, 0.1);
    border-radius: 50%;
    border-top: 4px solid #3498db;
    width: 30px;
    height: 30px;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.error {
    color: #e74c3c;
    background-color: #fadbd8;
    padding: 10px;
    border-radius: 4px;
    margin-bottom: 20px;
    display: none;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 20px;
}

th, td {
    padding: 12px 15px;
    text-align: left;
    border-bottom: 1px solid #ddd;
}

th {
    background-color: #f2f2f2;
    font-weight: bold;
}

tr:hover {
    background-color: #f9f9f9;
}

.no-data {
    text-align: center;
    color: #7f8c8d;
}

.detail-btn {
    background-color: #2ecc71;
    padding: 5px 10px;
    font-size: 14px;
}

.detail-btn:hover {
    background-color: #27ae60;
}

@media (max-width: 768px) {
    table {
        display: block;
        overflow-x: auto;
    }
}