/**
 * Electronic Signature Styles
 */

/* Signature Modal */
.signature-modal {
    width: 100%;
    max-width: 700px;
}

.signature-modal .modal-header {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    padding: 1.5rem;
    border-radius: 12px 12px 0 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.signature-modal .modal-header h3 {
    margin: 0;
    font-size: 1.3rem;
}

.signature-modal .modal-body {
    padding: 1.5rem;
}

/* Signature Tabs */
.signature-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid #e9ecef;
    flex-wrap: wrap;
}

.signature-tab {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 0.95rem;
    font-weight: 600;
    color: #6c757d;
    transition: all 0.3s;
    white-space: nowrap;
}

.signature-tab:hover {
    color: #667eea;
    background: #f8f9ff;
}

.signature-tab.active {
    color: #667eea;
    border-bottom-color: #667eea;
    background: #f8f9ff;
}

/* Tab Content */
.signature-tab-content {
    min-height: 300px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* Drawing Canvas */
.signature-canvas-container {
    border: 2px solid #dee2e6;
    border-radius: 8px;
    background: white;
    padding: 1rem;
    margin-bottom: 1rem;
    display: flex;
    justify-content: center;
}

#signatureCanvas {
    border: 1px dashed #adb5bd;
    border-radius: 4px;
    cursor: crosshair;
    touch-action: none;
    max-width: 100%;
}

.signature-controls {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.signature-controls label {
    font-weight: 600;
    color: #495057;
}

#penColor {
    width: 50px;
    height: 35px;
    border: 2px solid #dee2e6;
    border-radius: 4px;
    cursor: pointer;
}

#penSize {
    flex: 1;
    min-width: 100px;
}

/* Type Signature */
.signature-type-container {
    padding: 1rem;
}

.signature-type-container label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: #495057;
}

.form-input {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    font-size: 1rem;
    margin-bottom: 1rem;
    transition: all 0.2s;
}

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

.signature-preview {
    margin-top: 1rem;
    padding: 2rem;
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    text-align: center;
    min-height: 150px;
    display: flex;
    align-items: center;
    justify-content: center;
}

#typedSignaturePreview p {
    margin: 0;
    user-select: none;
}

/* Upload Signature */
.signature-upload-container {
    padding: 1rem;
}

.signature-upload-label {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 2rem;
    border: 3px dashed #667eea;
    border-radius: 12px;
    background: #f8f9ff;
    cursor: pointer;
    transition: all 0.3s;
    margin-bottom: 1rem;
}

.signature-upload-label:hover {
    border-color: #764ba2;
    background: #f0f2ff;
    transform: translateY(-2px);
}

.upload-icon {
    font-size: 3rem;
    margin-bottom: 0.5rem;
}

.upload-text {
    text-align: center;
    color: #495057;
}

.upload-text strong {
    color: #667eea;
    font-size: 1.1rem;
}

#uploadedSignaturePreview {
    background: white;
}

#uploadedSignaturePreview img {
    display: block;
    margin: 0 auto;
}

/* Saved Signatures */
.saved-signatures-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    padding: 1rem;
}

.saved-signature-item {
    position: relative;
    padding: 1rem;
    background: #f8f9fa;
    border: 2px solid #dee2e6;
    border-radius: 8px;
    text-align: center;
    transition: all 0.2s;
}

.saved-signature-item:hover {
    border-color: #667eea;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.2);
    transform: translateY(-2px);
}

.saved-signature-item img {
    display: block;
    margin: 0 auto;
}

.saved-signature-item .btn-remove {
    position: absolute;
    top: 5px;
    right: 5px;
    background: #dc3545;
    color: white;
    border: none;
    width: 25px;
    height: 25px;
    border-radius: 50%;
    font-size: 1.2rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.saved-signature-item .btn-remove:hover {
    background: #c82333;
    transform: scale(1.1);
}

/* Signature Actions */
.signature-actions {
    display: flex;
    gap: 1rem;
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 2px solid #e9ecef;
    flex-wrap: wrap;
}

.signature-actions .btn {
    flex: 1;
    min-width: 200px;
}

/* Signature Element on PDF */
.signature-element {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.signature-element:hover {
    border-color: #764ba2 !important;
}

/* Confirm Buttons */
#signatureConfirmButtons {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    padding: 0.5rem;
    background: white;
    border-radius: 8px;
}

#signatureConfirmButtons .btn {
    min-width: 120px;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
}

/* Responsive */
@media (max-width: 768px) {
    .signature-modal {
        width: 95%;
        max-width: 95%;
    }
    
    .signature-tabs {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    .signature-tab {
        padding: 0.6rem 1rem;
        font-size: 0.85rem;
    }
    
    #signatureCanvas {
        max-width: 100%;
        width: 100%;
    }
    
    .signature-controls {
        flex-direction: column;
        align-items: stretch;
    }
    
    .signature-actions {
        flex-direction: column;
    }
    
    .signature-actions .btn {
        min-width: 100%;
    }
    
    .saved-signatures-container {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
    
    #signatureConfirmButtons {
        bottom: 60px !important;
        right: 10px !important;
        left: 10px !important;
        flex-direction: column;
    }
    
    #signatureConfirmButtons .btn {
        width: 100%;
    }
}

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    .signature-canvas-container,
    .signature-preview,
    #uploadedSignaturePreview {
        background: #2a2a2a;
        border-color: #444;
    }
    
    .form-input {
        background: #2a2a2a;
        border-color: #444;
        color: #e0e0e0;
    }
    
    .saved-signature-item {
        background: #2a2a2a;
        border-color: #444;
    }
    
    .signature-upload-label {
        background: #2a3a4a;
        border-color: #667eea;
    }
    
    .signature-tab:hover,
    .signature-tab.active {
        background: #333;
    }
    
    #signatureConfirmButtons {
        background: #2a2a2a;
    }
}