/**
 * Project LIGHTHOUSE - Signature Pad Styles
 * Matches TVL Project TRACE signature pad styling
 */
.sig-container {
    border: 1px solid #dee2e6;
    border-radius: 10px;
    background: #fff;
    overflow: hidden;
}
.sig-tabs {
    display: flex;
    border-bottom: 1px solid #dee2e6;
}
.sig-tab {
    flex: 1;
    padding: 8px;
    text-align: center;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    color: #6c757d;
    background: #f8f9fa;
    border: none;
    transition: all 0.2s;
}
.sig-tab.active {
    color: #1a3a6b;
    background: #fff;
    border-bottom: 2px solid #1a3a6b;
}
.sig-tab:not(.active):hover {
    background: #e8f0fe;
}
.sig-draw-panel {
    position: relative;
}
.sig-canvas {
    display: block;
    width: 100%;
    cursor: crosshair;
    background: transparent;
    touch-action: none;
    border-bottom: 1px dashed #ccc;
}
.sig-canvas-actions {
    display: flex;
    justify-content: flex-end;
    padding: 4px 8px;
    background: #f8f9fa;
}
.sig-upload-panel {
    padding: 16px;
}
.sig-upload-zone {
    border: 2px dashed #ccc;
    border-radius: 8px;
    padding: 24px 16px;
    text-align: center;
    cursor: pointer;
    background: #fafafa;
    transition: all 0.2s;
}
.sig-upload-zone:hover,
.sig-upload-zone.drag-over {
    border-color: #1a3a6b;
    background: #e8f0fe;
}
.sig-preview-area {
    text-align: center;
    padding: 8px;
}
.sig-preview-img {
    max-height: 120px;
    max-width: 100%;
    border-radius: 4px;
    background: repeating-conic-gradient(#e8e8e8 0% 25%, #fff 0% 50%) 50%/12px 12px;
}
.sig-placeholder {
    padding: 10px;
    text-align: center;
}