/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --background: #f8fafc;
    --surface: #ffffff;
    --surface-2: #f1f5f9;
    --border: #e2e8f0;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    --radius: 8px;
    --radius-lg: 12px;
    --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: 100vh;
}

/* Header */
.form-header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem 0;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    position: relative;
    overflow: hidden;
}

.form-header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="1" fill="white" opacity="0.1"/><circle cx="75" cy="75" r="1" fill="white" opacity="0.1"/><circle cx="50" cy="10" r="0.5" fill="white" opacity="0.1"/><circle cx="10" cy="60" r="0.5" fill="white" opacity="0.1"/><circle cx="90" cy="40" r="0.5" fill="white" opacity="0.1"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
    pointer-events: none;
}

.header-content {
    position: relative;
    z-index: 1;
}

.form-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.form-header h1 i {
    font-size: 2rem;
}

.form-header p {
    font-size: 1.125rem;
    opacity: 0.9;
    font-weight: 400;
}

/* Form Type Section */
.form-type-section {
    margin-bottom: 2rem;
}

.form-type-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.form-type-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.form-type-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.radio-group {
    display: grid;
    gap: 1rem;
}

.radio-option {
    position: relative;
}

.radio-option input[type="radio"] {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.radio-option label {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.25rem;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: var(--transition);
    background: var(--surface-2);
}

.radio-option label:hover {
    border-color: var(--primary-color);
    background: var(--surface);
}

.radio-option input[type="radio"]:checked + label {
    border-color: var(--primary-color);
    background: var(--primary-color);
    color: white;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
}

.radio-option input[type="radio"]:checked + label .radio-label {
    color: white;
}

.radio-option input[type="radio"]:checked + label .radio-description {
    color: rgba(255, 255, 255, 0.9);
}

.radio-option input[type="radio"]:checked + label i {
    color: white;
}

.radio-option label i {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-top: 0.125rem;
    flex-shrink: 0;
}

.radio-option .radio-label {
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.radio-option .radio-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.4;
}

.radio-option label > span:last-child {
    display: flex;
    flex-direction: column;
}

/* Upload Section */
.upload-section {
    margin-bottom: 2rem;
}

/* Extraction Summary */
.extraction-summary {
    background: var(--surface);
    border: 1px solid var(--success-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-sm);
    display: none;
}

.extraction-summary .summary-header h3 {
    color: var(--success-color);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.extraction-summary .summary-header p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

.extracted-fields-list {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 1.5rem;
}

.extracted-field-item {
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem;
    display: grid;
    grid-template-columns: 1fr 2fr auto;
    gap: 1rem;
    align-items: center;
}

.extracted-field-item.mapped {
    border-left: 4px solid var(--success-color);
}

.extracted-field-item.unmapped {
    border-left: 4px solid var(--warning-color);
}

.extracted-field-item .field-name {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
}

.extracted-field-item .field-value {
    color: var(--text-secondary);
    font-size: 0.875rem;
    word-break: break-word;
}

.extracted-field-item .field-type {
    background: var(--primary-color);
    color: white;
    padding: 0.25rem 0.5rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
}

.summary-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.mapping-status {
    font-size: 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.mapping-status.mapped {
    color: var(--success-color);
}

.mapping-status.unmapped {
    color: var(--warning-color);
}

/* Visual indicators for extracted fields */
.extracted-field {
    background: linear-gradient(90deg, #f0f9f0 0%, var(--surface) 100%) !important;
    border-left: 4px solid var(--success-color) !important;
    position: relative;
}

.extracted-field::after {
    content: '✓ Extracted';
    position: absolute;
    top: -8px;
    right: 8px;
    background: var(--success-color);
    color: white;
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 500;
    z-index: 10;
    pointer-events: none;
}

.extracted-field:focus::after {
    display: none;
}

.upload-card {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.upload-card h3 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 600;
}

.upload-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--surface-2);
}

.upload-area:hover {
    border-color: var(--primary-color);
    background: var(--surface);
}

.upload-area i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
}

.upload-area p {
    color: var(--text-secondary);
    margin: 0;
}

.browse-text {
    color: var(--primary-color);
    font-weight: 500;
    text-decoration: underline;
}

.uploaded-file {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-top: 1rem;
}

.uploaded-file i {
    color: var(--error-color);
    font-size: 1.5rem;
}

.file-name {
    flex: 1;
    font-weight: 500;
    color: var(--text-primary);
}

.remove-file {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.remove-file:hover {
    color: var(--error-color);
    background: var(--surface-2);
}

/* Form Styles */
.payment-form {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-section {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}

.form-section h2 {
    color: var(--text-primary);
    margin-bottom: 1.5rem;
    font-size: 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.form-section h2 i {
    color: var(--primary-color);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
    letter-spacing: 0.025em;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1rem;
    transition: var(--transition);
    background: var(--surface);
    color: var(--text-primary);
}

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

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Signature Styles */
.signature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.signature-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.signature-group label {
    font-weight: 500;
    color: var(--text-primary);
    font-size: 0.875rem;
    letter-spacing: 0.025em;
}

.signature-container {
    position: relative;
    background: var(--surface);
    border: 2px solid var(--border);
    border-radius: var(--radius);
    height: 150px;
    cursor: pointer;
    transition: var(--transition);
    overflow: hidden;
}

.signature-container:hover {
    border-color: var(--primary-color);
}

.signature-canvas {
    width: 100%;
    height: 100%;
    display: block;
}

.signature-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    pointer-events: none;
    transition: var(--transition);
}

.signature-overlay i {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.signature-controls {
    display: flex;
    gap: 0.75rem;
}

.btn-clear {
    padding: 0.5rem 1rem;
    background: var(--surface-2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 0.875rem;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-clear:hover {
    background: var(--border);
    color: var(--text-primary);
}

/* Submit Section */
.submit-container {
    display: flex;
    justify-content: center;
    padding-top: 1rem;
}

.btn-submit {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: var(--radius);
    font-size: 1.125rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    box-shadow: var(--shadow-md);
    min-width: 250px;
    justify-content: center;
}

.btn-submit:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

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

.loading-spinner {
    display: none;
}

.btn-submit.loading .loading-spinner {
    display: block;
}

.btn-submit.loading span {
    display: none;
}

/* Message Styles */
.success-message,
.error-message {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 2rem;
    text-align: center;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
    margin-top: 2rem;
}

.success-message {
    border-left: 4px solid var(--success-color);
}

.error-message {
    border-left: 4px solid var(--error-color);
}

.success-message i {
    color: var(--success-color);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.error-message i {
    color: var(--error-color);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.success-message h3,
.error-message h3 {
    margin-bottom: 0.5rem;
    font-weight: 600;
}

/* Modal Styles */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-content {
    background: var(--surface);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    width: 100%;
    max-width: 600px;
    max-height: 90vh;
    overflow: hidden;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-header h3 {
    font-weight: 600;
    color: var(--text-primary);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
    border-radius: var(--radius);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--text-primary);
    background: var(--surface-2);
}

.modal-body {
    padding: 2rem;
}

.signature-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.tab-btn {
    padding: 0.75rem 1.5rem;
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.tab-btn.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

.modal-signature-canvas {
    width: 100%;
    height: 200px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    cursor: crosshair;
}

.canvas-controls {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
}

.signature-input {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 1.125rem;
    margin-bottom: 1rem;
}

.font-options {
    margin-bottom: 1rem;
}

.font-options label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-primary);
}

.font-options select {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
}

.typed-preview {
    height: 100px;
    border: 2px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-2);
    font-size: 2rem;
    color: var(--text-primary);
}

.signature-font-1 {
    font-family: 'Brush Script MT', cursive;
}

.signature-font-2 {
    font-family: 'Lucida Handwriting', cursive;
}

.signature-font-3 {
    font-family: 'Dancing Script', cursive;
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border);
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

.btn-primary,
.btn-secondary {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

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

.btn-secondary {
    background: var(--surface);
    color: var(--text-secondary);
    border-color: var(--border);
}

.btn-secondary:hover {
    background: var(--surface-2);
    color: var(--text-primary);
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }
    
    .form-header h1 {
        font-size: 2rem;
        flex-direction: column;
        gap: 0.5rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .signature-grid {
        grid-template-columns: 1fr;
    }
    
    .modal-content {
        margin: 1rem;
        max-width: none;
    }
    
    .modal-body {
        padding: 1.5rem;
    }
    
    .modal-footer {
        flex-direction: column;
    }
    
    .btn-submit {
        min-width: auto;
        width: 100%;
    }
}

@media (max-width: 480px) {
    .form-section {
        padding: 1.5rem;
    }
    
    .upload-card {
        padding: 1.5rem;
    }
    
    .upload-area {
        padding: 2rem 1rem;
    }
    
    .modal-header {
        padding: 1rem 1.5rem;
    }
    
    .modal-body {
        padding: 1rem 1.5rem;
    }
    
    .modal-footer {
        padding: 1rem 1.5rem;
    }
}

/* Print Styles */
@media print {
    .container {
        max-width: none;
        padding: 0;
    }
    
    .form-header,
    .upload-section,
    .submit-container,
    .success-message,
    .error-message {
        display: none;
    }
    
    .form-section {
        box-shadow: none;
        border: 1px solid #ccc;
        margin-bottom: 1rem;
        page-break-inside: avoid;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles for keyboard navigation */
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Safety Section */
.safety-container {
    background: linear-gradient(135deg, #f8fafc, #e2e8f0);
    border: 2px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 1.5rem;
    margin-top: 1rem;
}

.safety-info {
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
    padding: 1rem;
    background: var(--surface);
    border-radius: var(--radius);
    border-left: 4px solid var(--warning-color);
}

.safety-info i {
    color: var(--warning-color);
    font-size: 1.25rem;
    margin-top: 0.25rem;
    flex-shrink: 0;
}

.safety-text h4 {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.safety-text p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Checkbox Styles */
.checkbox-group {
    margin-bottom: 0;
}

.checkbox-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.checkbox-container input[type="checkbox"] {
    display: none;
}

.checkbox-custom {
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-radius: 4px;
    background: var(--surface);
    position: relative;
    cursor: pointer;
    transition: var(--transition);
    flex-shrink: 0;
}

.checkbox-custom::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 6px;
    width: 6px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: var(--transition);
}

.checkbox-container input[type="checkbox"]:checked + label .checkbox-custom {
    background: var(--primary-color);
    border-color: var(--primary-color);
}

.checkbox-container input[type="checkbox"]:checked + label .checkbox-custom::after {
    opacity: 1;
}

.checkbox-container label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 500;
    color: var(--text-primary);
    user-select: none;
}

.checkbox-text {
    font-size: 1rem;
}

.checkbox-help {
    padding-left: 2.75rem;
}

.checkbox-help small {
    color: var(--text-secondary);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.checkbox-help small i {
    color: var(--success-color);
    font-size: 0.875rem;
}

/* Checkbox hover and focus states */
.checkbox-container:hover .checkbox-custom {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.checkbox-container input[type="checkbox"]:focus + label .checkbox-custom {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    :root {
        --border: #000;
        --text-muted: #333;
        --surface-2: #f0f0f0;
    }
}