* {
    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;
    padding: 20px;
    color: #333;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    padding: 40px;
}

header {
    text-align: center;
    margin-bottom: 40px;
    padding-bottom: 20px;
    border-bottom: 2px solid #f0f0f0;
}

header h1 {
    font-size: 2.5em;
    color: #667eea;
    margin-bottom: 10px;
}

header p {
    color: #666;
    font-size: 1.1em;
}

.generator-section {
    margin-bottom: 40px;
}

.generator-section h2 {
    font-size: 1.8em;
    color: #333;
    margin-bottom: 20px;
    padding-bottom: 10px;
    border-bottom: 1px solid #e0e0e0;
}

.button-group {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.btn-primary {
    flex: 1;
    min-width: 200px;
    padding: 15px 30px;
    font-size: 1em;
    font-weight: 600;
    color: white;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border: none;
    border-radius: 8px;
    cursor: pointer;
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:active {
    transform: translateY(0);
}

.output-container {
    position: relative;
}

.output-textarea {
    width: 100%;
    min-height: 200px;
    padding: 15px;
    font-size: 0.95em;
    font-family: 'Courier New', monospace;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    background: #f9f9f9;
    resize: vertical;
    line-height: 1.6;
    color: #333;
}

.output-textarea:focus {
    outline: none;
    border-color: #667eea;
    background: white;
}

.btn-copy {
    margin-top: 10px;
    padding: 10px 20px;
    font-size: 0.9em;
    font-weight: 600;
    color: #667eea;
    background: white;
    border: 2px solid #667eea;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-copy:hover {
    background: #667eea;
    color: white;
}

.btn-copy:active {
    transform: scale(0.98);
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    header h1 {
        font-size: 2em;
    }

    .button-group {
        flex-direction: column;
    }

    .btn-primary {
        width: 100%;
    }
}