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

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

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

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

.header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 10px;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.subtitle {
    font-size: 1.2rem;
    font-weight: 300;
    opacity: 0.9;
}

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

/* Input section */
.input-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.form-group label {
    font-weight: 600;
    color: #374151;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

#code-input {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    padding: 15px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    resize: vertical;
    min-height: 300px;
    transition: border-color 0.2s ease;
}

#code-input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

select {
    padding: 12px 15px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    background: white;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

select:disabled {
    background: #f9fafb;
    color: #9ca3af;
    cursor: not-allowed;
}

/* Run button */
.run-button {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 15px 30px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
}

.run-button:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.3);
}

.run-button:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

/* Loading spinner */
.loading-spinner {
    display: flex;
    align-items: center;
    justify-content: center;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Status Banner */
.status-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    color: white;
    padding: 12px 20px;
    z-index: 1000;
    box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    animation: slideDown 0.3s ease-out;
}

.status-banner.error {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
}

.status-banner.success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}

.status-content {
    display: flex;
    align-items: center;
    justify-content: center;
    max-width: 1200px;
    margin: 0 auto;
    gap: 12px;
}

.status-icon {
    font-size: 18px;
    display: flex;
    align-items: center;
}

.status-text {
    flex: 1;
    text-align: center;
}

.status-message {
    font-weight: 600;
    font-size: 14px;
    margin-bottom: 2px;
}

.status-details {
    font-size: 12px;
    opacity: 0.9;
}

.status-spinner {
    display: flex;
    align-items: center;
}

.status-spinner .spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top: 2px solid white;
}

@keyframes slideDown {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

/* Adjust container top margin when banner is shown */
.container.with-banner {
    margin-top: 60px;
}

/* Output section */
.output-section {
    background: white;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    display: flex;
    flex-direction: column;
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f3f4f6;
}

.output-header h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #374151;
}

.clear-button {
    background: #ef4444;
    color: white;
    border: none;
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.clear-button:hover {
    background: #dc2626;
}

.output-container {
    flex: 1;
    min-height: 400px;
    background: #1e1e1e;
    border-radius: 8px;
    padding: 20px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.5;
    overflow-y: auto;
    position: relative;
}

.placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: #9ca3af;
    text-align: center;
}

.output-content {
    color: #e5e7eb;
    white-space: pre-wrap;
    word-wrap: break-word;
}

.output-error {
    color: #f87171;
    background: rgba(239, 68, 68, 0.1);
    padding: 15px;
    border-radius: 6px;
    border-left: 4px solid #ef4444;
}

.output-success {
    color: #10b981;
    background: rgba(16, 185, 129, 0.1);
    padding: 15px;
    border-radius: 6px;
    border-left: 4px solid #10b981;
}

/* Footer */
.footer {
    text-align: center;
    margin-top: 40px;
    color: white;
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Responsive design */
@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .header h1 {
        font-size: 2rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .input-section,
    .output-section {
        padding: 20px;
    }
    
    .container {
        padding: 15px;
    }
}

/* Code highlighting */
pre[class*="language-"] {
    background: #1e1e1e !important;
    border-radius: 8px;
    margin: 0;
}

code[class*="language-"] {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
}