body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    background-color: #f8f9fa;
    color: #212529;
    margin: 0;
    padding: 20px;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #ffffff;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

header {
    text-align: center;
    border-bottom: 1px solid #dee2e6;
    padding-bottom: 20px;
    margin-bottom: 30px;
}

header h1 {
    margin: 0;
    font-size: 2rem;
}

.search-section input {
    width: 100%;
    padding: 12px;
    font-size: 1rem;
    border: 1px solid #ced4da;
    border-radius: 4px;
    box-sizing: border-box;
}

.options-container {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 20px 0;
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
    border: 1px solid #dee2e6;
    border-radius: 4px;
}

.option-item {
    display: inline-block;
    padding: 8px 15px;
    background-color: #e9ecef;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.2s;
    user-select: none;
}

.option-item.selected {
    background-color: #007bff;
    color: white;
}

.option-item:hover {
    background-color: #dee2e6;
}

.option-item.selected:hover {
    background-color: #0056b3;
}


.output-section textarea {
    width: 100%;
    box-sizing: border-box;
    padding: 10px;
    border: 1px solid #ced4da;
    border-radius: 4px;
    font-family: monospace;
    resize: vertical;
}

.output-section button {
    margin-top: 10px;
    padding: 10px 15px;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    border-radius: 4px;
    background-color: #28a745;
    color: white;
    transition: background-color 0.2s;
}

.output-section button:hover {
    background-color: #218838;
}

#downloadButton {
    background-color: #17a2b8;
}

#downloadButton:hover {
    background-color: #138496;
}

footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #dee2e6;
    font-size: 0.9rem;
    color: #6c757d;
}

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

a:hover {
    text-decoration: underline;
}