/* Simplified Professional CSS */
:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --secondary-color: #475569;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-400: #94a3b8;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
}

/* Global Styles */
body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #f8fafc;
    margin: 0;
    padding: 0;
    color: var(--gray-800);
    line-height: 1.5;
}

.gradio-container {
    max-width: 1200px !important;
    margin: 0 auto !important;
    background: white !important;
    border-radius: var(--radius-lg) !important;
    box-shadow: var(--shadow-lg) !important;
    overflow: hidden !important;
    min-height: 100vh !important;
    font-family: 'Inter', sans-serif !important;
}

/* Header Styles */
.header-container {
    background: linear-gradient(135deg, var(--gray-900) 0%, var(--gray-800) 100%);
    color: white;
    padding: 2rem;
    border-bottom: 1px solid var(--gray-700);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    font-size: 2.5rem;
    color: white;
}

.logo-text h1 {
    margin: 0;
    font-size: 1.875rem;
    font-weight: 600;
    color: white;
}

.tagline {
    margin: 0.25rem 0 0 0;
    color: var(--gray-300);
    font-size: 1rem;
    font-weight: 400;
}

/* Main Layout */
.main-container {
    display: flex;
    min-height: 600px;
}

/* Sidebar Styles */
.sidebar {
    background: var(--gray-50);
    padding: 2rem 1.5rem !important;
    border-right: 1px solid var(--gray-200);
    width: 280px;
}

.steps-container {
    margin-bottom: 2rem;
}

.step {
    padding: 1rem;
    margin-bottom: 0.75rem;
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    transition: all 0.2s ease;
}

.step.active {
    background: white;
    border-color: var(--primary-color);
    border-left: 4px solid var(--primary-color);
    box-shadow: var(--shadow-sm);
}

.step-number {
    display: inline-block;
    width: 24px;
    height: 24px;
    background: var(--gray-200);
    color: var(--gray-700);
    border-radius: 50%;
    text-align: center;
    line-height: 24px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-right: 0.75rem;
}

.step.active .step-number {
    background: var(--primary-color);
    color: white;
}

.step-title {
    font-weight: 600;
    color: var(--gray-800);
    display: inline-block;
}

.step.active .step-title {
    color: var(--gray-900);
}

.step-description {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin-top: 0.25rem;
    margin-left: 2.5rem;
}

/* Tips Section */
.tips-container {
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
}

.tips-container h4 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.tip {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.tip:last-child {
    margin-bottom: 0;
}

.tip-icon {
    color: var(--primary-color);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.tip-content p {
    margin: 0;
    font-size: 0.875rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* Requirements */
.requirements {
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--gray-200);
    padding: 1.5rem;
    margin-top: 1.5rem;
}

.requirements h4 {
    margin: 0 0 1rem 0;
    font-size: 1rem;
    font-weight: 600;
    color: var(--gray-800);
}

.requirements ul {
    margin: 0;
    padding-left: 1.25rem;
}

.requirements li {
    margin-bottom: 0.5rem;
    color: var(--gray-600);
    font-size: 0.875rem;
}

/* Main Content Area */
.main-content {
    flex: 1;
    padding: 2rem;
}

.step-group {
    background: white;
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 1.5rem;
    border: 1px solid var(--gray-200);
}

.step-group h3 {
    margin: 0 0 1.5rem 0;
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-700);
    font-size: 0.875rem;
}

input, textarea, select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gray-300);
    border-radius: var(--radius-md);
    font-family: 'Inter', sans-serif;
    font-size: 0.875rem;
    transition: all 0.2s ease;
    color: var(--gray-800);
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input::placeholder, textarea::placeholder {
    color: var(--gray-400);
}

/* Button Styles */
button {
    font-family: 'Inter', sans-serif !important;
    font-weight: 500 !important;
    font-size: 0.875rem !important;
    padding: 0.75rem 1.5rem !important;
    border-radius: var(--radius-md) !important;
    transition: all 0.2s ease !important;
    border: 1px solid transparent !important;
}

button.primary {
    background: var(--primary-color) !important;
    color: white !important;
    border: none !important;
}

button.primary:hover {
    background: var(--primary-dark) !important;
    transform: translateY(-1px) !important;
    box-shadow: var(--shadow-md) !important;
}

button.secondary {
    background: white !important;
    color: var(--gray-700) !important;
    border: 1px solid var(--gray-300) !important;
}

button.secondary:hover {
    background: var(--gray-50) !important;
    border-color: var(--gray-400) !important;
}

/* Tabs */
.tab-nav {
    display: flex;
    border-bottom: 1px solid var(--gray-200);
    margin-bottom: 1.5rem;
}

.tab-nav button {
    padding: 0.75rem 1.5rem !important;
    background: none !important;
    border: none !important;
    border-bottom: 2px solid transparent !important;
    color: var(--gray-600) !important;
    border-radius: 0 !important;
    margin-bottom: -1px !important;
}

.tab-nav button.selected {
    color: var(--primary-color) !important;
    border-bottom-color: var(--primary-color) !important;
    font-weight: 600 !important;
}

/* File Inputs */
.file-input-container {
    border: 2px dashed var(--gray-300);
    border-radius: var(--radius-md);
    padding: 2rem;
    text-align: center;
    background: var(--gray-50);
    transition: all 0.2s ease;
}

.file-input-container:hover {
    border-color: var(--primary-color);
    background: var(--gray-100);
}

/* Code Editor */
.code-editor {
    font-family: 'JetBrains Mono', 'Consolas', 'Monaco', monospace !important;
    font-size: 0.875rem !important;
    line-height: 1.6 !important;
    background: var(--gray-50) !important;
    border: 1px solid var(--gray-300) !important;
    border-radius: var(--radius-md) !important;
    padding: 1rem !important;
}

/* Status Messages */
.status-message {
    padding: 1rem;
    border-radius: var(--radius-md);
    margin: 1rem 0;
    border-left: 4px solid;
    background: var(--gray-50);
    font-size: 0.875rem;
}

.status-message.success {
    border-left-color: var(--success-color);
    background: #f0fdf4;
}

.status-message.error {
    border-left-color: var(--error-color);
    background: #fef2f2;
}

.status-message.warning {
    border-left-color: var(--warning-color);
    background: #fffbeb;
}

.status-message.info {
    border-left-color: var(--primary-color);
    background: #eff6ff;
}

/* File Downloads */
.file-download-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin-bottom: 0.75rem;
    background: var(--gray-50);
}

.file-download-item .file-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.file-download-item .file-icon {
    color: var(--primary-color);
    font-size: 1.25rem;
}

.file-download-item .file-name {
    font-weight: 500;
    color: var(--gray-800);
}

.file-download-item .file-size {
    font-size: 0.75rem;
    color: var(--gray-500);
}

/* Accordion */
.accordion {
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-md);
    margin: 1.5rem 0;
}

.accordion-header {
    padding: 1rem 1.5rem;
    background: var(--gray-50);
    border-bottom: 1px solid var(--gray-200);
    font-weight: 600;
    color: var(--gray-800);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.accordion-content {
    padding: 1.5rem;
    background: white;
}

/* Radio and Checkbox */
.radio-group, .checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.radio-item, .checkbox-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.radio-item input[type="radio"],
.checkbox-item input[type="checkbox"] {
    width: auto;
    margin: 0;
}

/* Divider */
.divider {
    height: 1px;
    background: var(--gray-200);
    margin: 1.5rem 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .main-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--gray-200);
    }
    
    .gradio-container {
        padding: 0.5rem !important;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        text-align: center;
        gap: 1rem;
    }
    
    .logo-section {
        flex-direction: column;
        text-align: center;
    }
    
    .step-group {
        padding: 1.5rem;
    }
    
    .main-content {
        padding: 1rem;
    }
}

/* Loading Animation */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--gray-300);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Utility Classes */
.text-sm {
    font-size: 0.875rem;
}

.text-xs {
    font-size: 0.75rem;
}

.font-medium {
    font-weight: 500;
}

.font-semibold {
    font-weight: 600;
}

.text-gray-600 {
    color: var(--gray-600);
}

.text-gray-700 {
    color: var(--gray-700);
}

.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-3 { margin-top: 0.75rem; }
.mt-4 { margin-top: 1rem; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.ml-2 { margin-left: 0.5rem; }
.mr-2 { margin-right: 0.5rem; }