<style>
.url-converter-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
    color: #333;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.url-converter-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: #2c3e50;
    text-align: center;
}

.url-converter-description {
    margin-bottom: 20px;
    text-align: center;
    color: #666;
}

.url-converter-input-group {
    margin-bottom: 15px;
}

.url-converter-input, .url-converter-output {
    width: 100%;
    padding: 12px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 16px;
    box-sizing: border-box;
    resize: vertical;
    transition: border-color 0.3s;
}

.url-converter-input:focus, .url-converter-output:focus {
    border-color: #3498db;
    outline: none;
}

.url-converter-button-group {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.url-converter-btn {
    padding: 10px 15px;
    border: none;
    border-radius: 4px;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
    flex: 1;
    min-width: 120px;
}

.url-converter-btn-primary {
    background-color: #3498db;
    color: white;
}

.url-converter-btn-primary:hover {
    background-color: #2980b9;
}

.url-converter-btn-secondary {
    background-color: #2ecc71;
    color: white;
}

.url-converter-btn-secondary:hover {
    background-color: #27ae60;
}

.url-converter-btn-tertiary {
    background-color: #e74c3c;
    color: white;
}

.url-converter-btn-tertiary:hover {
    background-color: #c0392b;
}

.url-converter-btn-copy {
    background-color: #9b59b6;
    color: white;
    margin-top: 10px;
}

.url-converter-btn-copy:hover {
    background-color: #8e44ad;
}

.url-converter-result-group {
    margin-bottom: 20px;
}

.url-converter-result-label {
    display: block;
    margin-bottom: 8px;
    font-weight: bold;
}

.url-converter-info {
    margin-top: 30px;
    padding: 15px;
    background-color: #f8f9fa;
    border-radius: 4px;
}

.url-converter-info details {
    cursor: pointer;
}

.url-converter-info summary {
    font-weight: bold;
    margin-bottom: 10px;
}

.url-converter-info p, .url-converter-info ul {
    margin-top: 10px;
    line-height: 1.6;
}

.url-converter-info ul {
    padding-left: 20px;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .url-converter-button-group {
        flex-direction: column;
    }
    
    .url-converter-btn {
        width: 100%;
    }
}
</style>