body {
    background-color: #1f2937 !important; /* Tailwind gray-800 */
    color: #f3f4f6 !important;
}

.navbar-brand {
    font-weight: bold;
    letter-spacing: 0.5px;
}

.btn-primary {
    background-color: #3b82f6;
    border-color: #3b82f6;
}

.btn-success {
    background-color: #10b981;
    border-color: #10b981;
}

/* Brush Cursor Preview */
#brush-cursor-preview {
    position: fixed;
    pointer-events: none;
    z-index: 9999;
    border: 1px dashed rgba(255, 255, 255, 0.8);
    box-shadow: 0 0 0 1px rgba(0, 0, 0, 0.5); /* Black outline for contrast */
    display: none;
    transform: translate(-50%, -50%); /* Start centered so JS just sets left/top */
}

#brush-cursor-preview.circle {
    border-radius: 50%;
}

#brush-cursor-preview.square {
    border-radius: 0;
}