/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #333;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
}

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

/* Header */
header {
    text-align: center;
    margin-bottom: 40px;
    color: white;
}

header h1 {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

header p {
    font-size: 1.2rem;
    opacity: 0.9;
}

/* Main content */
.main-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

/* Editor section */
.editor-section {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.editor-header {
    background: #f8f9fa;
    padding: 20px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 15px;
}

.editor-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #495057;
}

.controls {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

#code-editor {
    width: 100%;
    height: 400px;
    padding: 20px;
    border: none;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.5;
    resize: vertical;
    outline: none;
    background: #fafafa;
}

#code-editor:focus {
    background: white;
}

/* Output section */
.output-section {
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.output-header {
    background: #f8f9fa;
    padding: 20px;
    border-bottom: 1px solid #e9ecef;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.output-header h2 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #495057;
}

.output-container {
    height: 400px;
    padding: 20px;
    overflow-y: auto;
    background: #1e1e1e;
    color: #d4d4d4;
    font-family: 'JetBrains Mono', 'Fira Code', 'Consolas', monospace;
    font-size: 14px;
    line-height: 1.5;
}

.output-placeholder {
    color: #6a6a6a;
    font-style: italic;
    text-align: center;
    margin-top: 50px;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: #007bff;
    color: white;
}

.btn-primary:hover {
    background: #0056b3;
    transform: translateY(-1px);
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #545b62;
    transform: translateY(-1px);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none;
}

/* Select dropdown */
select {
    padding: 8px 12px;
    border: 1px solid #ced4da;
    border-radius: 6px;
    background: white;
    font-size: 14px;
    cursor: pointer;
}

select:focus {
    outline: none;
    border-color: #007bff;
    box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.25);
}

/* Info section */
.info-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.info-section h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: #495057;
    margin-bottom: 15px;
}

.info-section p {
    margin-bottom: 15px;
    color: #6c757d;
}

.info-section ul {
    list-style: none;
    padding-left: 0;
}

.info-section li {
    padding: 5px 0;
    color: #6c757d;
    position: relative;
    padding-left: 20px;
}

.info-section li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: #28a745;
    font-weight: bold;
}

.info-section code {
    background: #f8f9fa;
    padding: 2px 6px;
    border-radius: 4px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9em;
    color: #e83e8c;
}

/* Loading state */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

/* Error styling */
.error {
    color: #dc3545;
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    padding: 10px;
    border-radius: 6px;
    margin: 10px 0;
}

/* Success styling */
.success {
    color: #155724;
    background: #d4edda;
    border: 1px solid #c3e6cb;
    padding: 10px;
    border-radius: 6px;
    margin: 10px 0;
}

/* Responsive design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }
    
    header h1 {
        font-size: 2rem;
    }
    
    .editor-header {
        flex-direction: column;
        align-items: stretch;
    }
    
    .controls {
        justify-content: center;
    }
    
    #code-editor {
        height: 300px;
    }
    
    .output-container {
        height: 300px;
    }
}