/* 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-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 15px;
}

.logo i {
    font-size: 2.5rem;
    color: #4ade80;
}

.logo h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 0;
}

.subtitle {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 300;
}

/* Main content */
.main {
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

/* Form */
.form-container {
    padding: 40px;
}

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

.form-section h2 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 25px;
    padding-bottom: 15px;
    border-bottom: 2px solid #f3f4f6;
}

.form-section h2 i {
    color: #667eea;
}

.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    color: #374151;
    margin-bottom: 8px;
}

.form-group label i {
    color: #667eea;
    width: 16px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    transition: all 0.3s ease;
    background: white;
}

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

.form-group small {
    display: block;
    margin-top: 5px;
    color: #6b7280;
    font-size: 0.875rem;
}

/* Info grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: #f8fafc;
    border-radius: 12px;
    border: 1px solid #e2e8f0;
}

.info-item i {
    font-size: 1.5rem;
    color: #667eea;
    width: 24px;
}

.info-item strong {
    display: block;
    color: #1f2937;
    font-weight: 600;
}

.info-item span {
    color: #6b7280;
    font-size: 0.9rem;
}

/* Columns info */
.columns-info h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 15px;
}

.columns-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.column {
    background: #667eea;
    color: white;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
}

/* Form actions */
.form-actions {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 40px;
    padding-top: 30px;
    border-top: 2px solid #f3f4f6;
}

.btn {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    min-width: 200px;
    justify-content: center;
}

.btn-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(102, 126, 234, 0.3);
}

.btn-secondary {
    background: #f3f4f6;
    color: #374151;
    border: 2px solid #e5e7eb;
}

.btn-secondary:hover {
    background: #e5e7eb;
    transform: translateY(-2px);
}

.btn-close {
    background: #ef4444;
    color: white;
    padding: 8px 12px;
    border-radius: 8px;
    min-width: auto;
}

.btn-close:hover {
    background: #dc2626;
}

/* Progress */
.progress-container {
    padding: 40px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
}

.progress-header {
    text-align: center;
    margin-bottom: 30px;
}

.progress-header h3 {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
    margin-bottom: 10px;
}

.progress-header p {
    color: #6b7280;
    font-size: 1.1rem;
}

.progress-bar {
    width: 100%;
    height: 12px;
    background: #e5e7eb;
    border-radius: 6px;
    overflow: hidden;
    margin-bottom: 20px;
}

.progress-fill {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    width: 0%;
    transition: width 0.3s ease;
    border-radius: 6px;
}

.progress-stats {
    display: flex;
    justify-content: center;
    gap: 40px;
}

.stat {
    text-align: center;
}

.stat-label {
    display: block;
    color: #6b7280;
    font-size: 0.9rem;
    margin-bottom: 5px;
}

.stat-value {
    display: block;
    color: #1f2937;
    font-size: 1.2rem;
    font-weight: 600;
}

/* Preview */
.preview-container {
    padding: 40px;
    background: #f8fafc;
    border-top: 1px solid #e2e8f0;
}

.preview-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 25px;
}

.preview-header h3 {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 600;
    color: #1f2937;
}

.preview-content {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.preview-table {
    overflow-x: auto;
}

.preview-table table {
    width: 100%;
    border-collapse: collapse;
}

.preview-table th,
.preview-table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid #e5e7eb;
    font-size: 0.9rem;
}

.preview-table th {
    background: #f8fafc;
    font-weight: 600;
    color: #374151;
    position: sticky;
    top: 0;
}

.preview-table td {
    color: #6b7280;
}

.preview-table tr:hover {
    background: #f8fafc;
}

/* Footer */
.footer {
    margin-top: 40px;
    text-align: center;
    color: white;
}

.footer-content {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border-radius: 15px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-content p {
    margin-bottom: 15px;
    opacity: 0.9;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.footer-link {
    display: flex;
    align-items: center;
    gap: 8px;
    color: white;
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-link:hover {
    opacity: 1;
}

/* Toast */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: white;
    border-radius: 12px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    padding: 20px;
    transform: translateX(500px);
    transition: transform 0.3s ease, opacity 0.3s ease;
    z-index: 1000;
    min-width: 300px;
    opacity: 0;
    visibility: hidden;
}

.toast.show {
    transform: translateX(0);
    opacity: 1;
    visibility: visible;
    display: block;
}

.toast:not(.show) {
    transform: translateX(500px);
    opacity: 0;
    visibility: hidden;
}

.toast[style*="display: none"] {
    display: none !important;
    visibility: hidden !important;
    transform: translateX(500px) !important;
    opacity: 0 !important;
}

.toast-content {
    display: flex;
    align-items: center;
    gap: 12px;
}

.toast-icon {
    font-size: 1.2rem;
}

.toast.success .toast-icon {
    color: #10b981;
}

.toast.error .toast-icon {
    color: #ef4444;
}

.toast-message {
    font-weight: 500;
    color: #1f2937;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }
    
    .header-content {
        padding: 30px 20px;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
    
    .form-container {
        padding: 30px 20px;
    }
    
    .form-actions {
        flex-direction: column;
    }
    
    .btn {
        min-width: auto;
    }
    
    .info-grid {
        grid-template-columns: 1fr;
    }
    
    .progress-stats {
        flex-direction: column;
        gap: 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
    
    .toast {
        right: 10px;
        left: 10px;
        min-width: auto;
    }
}

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

.fa-spin {
    animation: spin 1s linear infinite;
}

/* Structure Editor Styles */
.structure-editor {
    background: #f8fafc;
    border-radius: 12px;
    padding: 20px;
    border: 1px solid #e2e8f0;
}

.structure-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
}

.btn-outline {
    background: transparent;
    border: 2px solid #667eea;
    color: #667eea;
    font-size: 0.9rem;
    padding: 10px 20px;
    min-width: auto;
}

.btn-outline:hover {
    background: #667eea;
    color: white;
    transform: translateY(-2px);
}

.current-structure-info {
    background: white;
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid #d1d5db;
    color: #374151;
    font-size: 0.9rem;
    font-weight: 500;
}

.structure-editor-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 90%;
    max-width: 800px;
    max-height: 80vh;
    background: white;
    border-radius: 15px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.25);
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.structure-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 25px 30px;
    border-bottom: 2px solid #f3f4f6;
}

.structure-header h3 {
    font-size: 1.4rem;
    font-weight: 600;
    color: #1f2937;
    margin: 0;
}

.structure-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 30px;
    overflow-y: auto;
}

.custom-fields {
    flex: 1;
    margin-bottom: 20px;
    max-height: 400px;
    overflow-y: auto;
}

.field-item {
    background: #f8fafc;
    border: 2px solid #e2e8f0;
    border-radius: 10px;
    padding: 15px;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 15px;
    transition: all 0.2s ease;
}

.field-item:hover {
    border-color: #667eea;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.1);
}

.field-item input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid #d1d5db;
    border-radius: 6px;
    font-size: 0.9rem;
    background: white;
}

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

.field-item .field-type {
    width: 120px;
    font-size: 0.85rem;
    padding: 8px 12px;
}

.delete-field {
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 12px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: background 0.2s ease;
}

.delete-field:hover {
    background: #dc2626;
}

.structure-actions {
    display: flex;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid #e5e7eb;
    margin-top: auto;
}

.btn-success {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    font-size: 0.9rem;
    padding: 10px 20px;
    min-width: auto;
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(16, 185, 129, 0.3);
}

.structure-preview {
    margin-top: 20px;
    padding: 20px;
    background: white;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}

.structure-preview h4 {
    color: #374151;
    margin-bottom: 10px;
    font-size: 1.1rem;
    font-weight: 600;
}

/* Fade in animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-container,
.progress-container,
.preview-container {
    animation: fadeIn 0.5s ease;
}