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

:root {
    --primary-color: #4a90e2;
    --primary-hover: #357abd;
    --secondary-color: #6c757d;
    --secondary-hover: #5a6268;
    --success-color: #28a745;
    --background: #f8f9fa;
    --card-background: #ffffff;
    --text-color: #333333;
    --text-secondary: #6c757d;
    --border-color: #e0e0e0;
    --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow-hover: 0 4px 16px rgba(0, 0, 0, 0.15);
    --radius: 8px;
    --transition: all 0.3s ease;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--background);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

header {
    background-color: var(--card-background);
    box-shadow: var(--shadow);
    padding: 2rem 0;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 0.5rem;
}

.subtitle {
    text-align: center;
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.language-selector {
    text-align: center;
}

#languageSelect {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background-color: var(--card-background);
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
}

#languageSelect:hover {
    border-color: var(--primary-color);
}

.generator-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.generator-card {
    background-color: var(--card-background);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.generator-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
}

.generator-card h2 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.button-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.75rem;
}

.generate-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
    border: none;
    border-radius: var(--radius);
    background-color: var(--primary-color);
    color: white;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.generate-btn:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
}

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

.generate-btn .icon {
    font-size: 1.2rem;
}

.result-section {
    background-color: var(--card-background);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.result-header h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
}

.result-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.count-input {
    width: 60px;
    padding: 0.5rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 1rem;
    text-align: center;
}

.action-btn {
    padding: 0.5rem 1.5rem;
    border: none;
    border-radius: var(--radius);
    background-color: var(--primary-color);
    color: white;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.action-btn:hover {
    background-color: var(--primary-hover);
}

.action-btn.secondary {
    background-color: var(--secondary-color);
}

.action-btn.secondary:hover {
    background-color: var(--secondary-hover);
}

.result-area {
    width: 100%;
    min-height: 200px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.95rem;
    resize: vertical;
    background-color: #f5f5f5;
}

.options-section {
    background-color: var(--card-background);
    border-radius: var(--radius);
    padding: 1.5rem;
    box-shadow: var(--shadow);
    margin-bottom: 2rem;
}

.options-section h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    user-select: none;
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.toast {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background-color: var(--success-color);
    color: white;
    padding: 1rem 1.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 1000;
}

.toast.show {
    opacity: 1;
    transform: translateY(0);
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .button-group {
        grid-template-columns: 1fr;
    }
    
    .result-header {
        flex-direction: column;
        align-items: flex-start;
    }
    
    .result-actions {
        flex-wrap: wrap;
    }
}

@media (prefers-color-scheme: dark) {
    :root {
        --background: #1a1a1a;
        --card-background: #2d2d2d;
        --text-color: #e0e0e0;
        --text-secondary: #a0a0a0;
        --border-color: #404040;
    }
    
    .result-area {
        background-color: #1a1a1a;
        color: #e0e0e0;
    }
    
    #languageSelect {
        background-color: var(--card-background);
        color: var(--text-color);
        border-color: var(--border-color);
    }
}