/* Lumina Mandala Styles - Vivayasa Theme */

.tool-btn {
    padding: 8px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    background: var(--bg-primary);
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    justify-content: center;
}

.tool-btn:hover {
    border-color: var(--accent-primary);
    color: var(--accent-primary);
    transform: translateY(-1px);
    background: var(--bg-secondary);
}

.tool-btn.active {
    background: var(--accent-primary);
    color: var(--bg-primary);
    border-color: var(--accent-primary);
    font-weight: 700;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.color-swatch {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.color-swatch:hover {
    transform: scale(1.15);
    z-index: 10;
}

.color-swatch.active {
    border-color: var(--text-primary);
    transform: scale(1.1);
    box-shadow: 0 0 0 2px var(--bg-primary), 0 0 0 4px var(--accent-primary);
}

/* Range Input Styling Update for consistency */
input[type=range] {
    -webkit-appearance: none;
    /* Hides standard UI */
    background: transparent;
}

input[type=range]::-webkit-slider-thumb {
    -webkit-appearance: none;
    height: 18px;
    width: 18px;
    border-radius: 50%;
    background: var(--accent-primary);
    cursor: pointer;
    margin-top: -6px;
    /* center thumb */
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
    border: 2px solid var(--bg-primary);
    transition: transform 0.1s;
}

input[type=range]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 6px;
    cursor: pointer;
    background: var(--bg-secondary);
    border-radius: 3px;
    border: 1px solid var(--border-color);
}

#canvas-container {
    background-color: #ffffff;
    transition: box-shadow 0.3s, border-color 0.3s;
}

[data-theme="dark"] #canvas-container {
    background-color: #0f172a;
    /* Darker slate for contrast */
}

[data-theme="zen"] #canvas-container {
    background-color: #fafbf9;
    /* Warm paper like */
}