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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background-color: #f5f5f5;
}

.container {
    max-width: 800px;
    margin: 2rem auto;
    padding: 0 1rem;
}

h1 {
    text-align: center;
    margin-bottom: 2rem;
    color: #1a1a1a;
}

.input-section {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
}

.url-input {
    flex: 1;
    padding: 0.8rem;
    border: 2px solid #ddd;
    border-radius: 4px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.url-input:focus {
    outline: none;
    border-color: #007bff;
}

.fetch-btn {
    padding: 0.8rem 1.5rem;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color 0.3s;
}

.fetch-btn:hover {
    background-color: #0056b3;
}

.loading {
    text-align: center;
    padding: 1rem;
    color: #666;
}

.error {
    padding: 1rem;
    background-color: #ffebee;
    color: #c62828;
    border-radius: 4px;
    margin-bottom: 1rem;
}

.result {
    background-color: white;
    padding: 1.5rem;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.video-preview {
    margin-bottom: 1.5rem;
}

.video-preview video {
    width: 100%;
    max-height: 500px;
    border-radius: 4px;
}

.download-links {
    margin-bottom: 1.5rem;
}

.download-btn {
    display: inline-block;
    padding: 0.8rem 1.5rem;
    background-color: #28a745;
    color: white;
    text-decoration: none;
    border-radius: 4px;
    transition: background-color 0.3s;
}

.download-btn:hover {
    background-color: #218838;
}

.json-view {
    background-color: #f8f9fa;
    padding: 1rem;
    border-radius: 4px;
}

.json-view h3 {
    margin-bottom: 1rem;
    color: #495057;
}

.json-content {
    white-space: pre-wrap;
    word-wrap: break-word;
    font-family: monospace;
    font-size: 0.9rem;
    line-height: 1.5;
}

@media (max-width: 600px) {
    .input-section {
        flex-direction: column;
    }
    
    .fetch-btn {
        width: 100%;
    }
    
    .container {
        margin: 1rem auto;
    }
}