body {
    margin: 0;
    padding: 0;
    font-family: Arial, sans-serif;
}

.container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    box-sizing: border-box;
}

h1 {
    margin-top: 0;
    color: #2c3e50;
}

.input-section {
    margin-bottom: 20px;
}

textarea {
    width: 100%;
    height: 100px;
    padding: 10px;
    box-sizing: border-box;
    font-family: monospace;
    resize: vertical;
    border: 1px solid #ddd;
    border-radius: 4px;
}

.btn {
    background-color: #4CAF50;
    color: white;
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-right: 10px;
    transition: background-color 0.3s;
}

.btn:hover {
    background-color: #45a049;
}

.btn-clear {
    background-color: #f44336;
}

.btn-clear:hover {
    background-color: #d32f2f;
}

.btn-sample {
    background-color: #2196F3;
}

.btn-sample:hover {
    background-color: #0b7dda;
}

.button-group {
    display: flex;
    gap: 10px;
    margin-top: 10px;
}

#map {
    flex-grow: 1;
    border-radius: 4px;
    border: 1px solid #ddd;
}

.error {
    color: #f44336;
    margin-top: 10px;
    font-weight: bold;
}

.info {
    margin-top: 10px;
    font-style: italic;
    color: #666;
}

.basemap-info {
    margin-top: 5px;
    font-size: 0.9em;
    color: #2196F3;
}