.feature-card-icon.paint-icon {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
}
.pt-form-area { margin-top: 4px; }
.pt-toolbar {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    padding: 12px;
    background: #f8fafc;
    border-radius: 12px;
    margin-bottom: 12px;
}
.pt-tool-group {
    display: flex;
    gap: 4px;
    align-items: center;
    padding: 4px 8px;
    background: white;
    border-radius: 10px;
    border: 1px solid #e2e8f0;
}
.pt-group-label {
    font-size: 0.75rem;
    color: #64748b;
    margin-right: 4px;
    font-weight: 600;
}
.pt-tool-btn {
    width: 34px;
    height: 34px;
    border: 1px solid transparent;
    background: transparent;
    border-radius: 8px;
    cursor: pointer;
    color: #64748b;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.pt-tool-btn:hover {
    background: #f0f9ff;
    color: #0ea5e9;
}
.pt-tool-btn.active {
    background: linear-gradient(135deg, #10b981, #059669);
    color: white;
    box-shadow: 0 2px 8px rgba(16, 185, 129, 0.3);
}
.pt-size-val {
    font-size: 0.82rem;
    font-weight: 600;
    color: #059669;
    min-width: 24px;
    text-align: center;
}
.pt-color-dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    border: 2px solid white;
    box-shadow: 0 0 0 1px #cbd5e1;
    cursor: pointer;
    transition: transform 0.2s;
}
.pt-color-dot:hover {
    transform: scale(1.2);
}
.pt-bg-btn {
    padding: 6px 12px;
    border: 1px solid #e2e8f0;
    background: white;
    border-radius: 8px;
    cursor: pointer;
    color: #64748b;
    font-size: 0.82rem;
    display: flex;
    align-items: center;
    gap: 5px;
    transition: all 0.2s;
}
.pt-bg-btn:hover {
    background: #f0f9ff;
    color: #0ea5e9;
}
.pt-canvas-wrap {
    position: relative;
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: inset 0 0 0 2px #e2e8f0;
    margin-bottom: 12px;
}
#pt-canvas {
    display: block;
    width: 100%;
    height: auto;
    cursor: crosshair;
    touch-action: none;
}
.pt-canvas-hint {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #cbd5e1;
    font-size: 1rem;
    pointer-events: none;
    transition: opacity 0.3s;
}
.pt-canvas-hint.hidden { opacity: 0; }
.pt-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.feature-card-btn.pt-action-btn {
    padding: 8px 14px;
    font-size: 0.85rem;
    background: linear-gradient(135deg, #64748b, #475569);
    flex: 1;
    min-width: 80px;
}
.feature-card-btn.pt-action-btn:hover {
    box-shadow: 0 4px 12px rgba(100, 116, 139, 0.3);
}
.feature-card-btn.pt-save-btn {
    background: linear-gradient(135deg, #10b981, #059669);
}
.feature-card-btn.pt-save-btn:hover {
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}
.feature-card-btn.pt-action-btn:active {
    transform: scale(0.96);
}