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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    max-width: 800px;
    width: 100%;
    padding: 40px;
}

header {
    text-align: center;
    margin-bottom: 40px;
}

h1 {
    font-size: 42px;
    color: #667eea;
    margin-bottom: 10px;
}

.tagline {
    color: #666;
    font-size: 16px;
}

.input-section {
    margin-bottom: 30px;
}

label {
    display: block;
    font-weight: 600;
    color: #333;
    margin-bottom: 10px;
    font-size: 18px;
}

textarea {
    width: 100%;
    padding: 15px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 16px;
    font-family: inherit;
    resize: vertical;
    transition: border-color 0.3s;
}

textarea:focus {
    outline: none;
    border-color: #667eea;
}

button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    width: 100%;
    margin-top: 15px;
    transition: transform 0.2s, box-shadow 0.2s;
}

button:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(102, 126, 234, 0.4);
}

button:active {
    transform: translateY(0);
}

.loading {
    text-align: center;
    padding: 40px;
}

.spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #667eea;
    border-radius: 50%;
    width: 50px;
    height: 50px;
    animation: spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

.result {
    margin-top: 30px;
}

.result h2 {
    color: #10b981;
    margin-bottom: 20px;
    font-size: 24px;
}

.code-container {
    background: #1e1e1e;
    border-radius: 10px;
    padding: 20px;
    margin-bottom: 15px;
    max-height: 400px;
    overflow-y: auto;
}

pre {
    color: #d4d4d4;
    font-family: 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.5;
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.copy-btn {
    background: #10b981;
    margin-top: 0;
}

.copy-btn:hover {
    box-shadow: 0 10px 20px rgba(16, 185, 129, 0.4);
}

.instructions {
    margin-top: 15px;
    color: #666;
    font-size: 14px;
    text-align: center;
}

.hidden {
    display: none;
}

footer {
    text-align: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #e0e0e0;
    color: #999;
    font-size: 14px;
}