/* Drawing Canvas Block — bkbg-drw-* */

/* ---- Section wrapper ---- */
.bkbg-drw-app {
    padding: 28px 20px 24px;
    font-family: inherit;
    box-sizing: border-box;
}

/* ---- Titles ---- */
.bkbg-drw-editor-wrap .bkbg-drw-title,
.bkbg-drw-app .bkbg-drw-title {
    margin: 0 0 4px;
    text-align: center;
    font-family: var(--bkbg-drw-ttl-font-family, inherit);
    font-weight: var(--bkbg-drw-ttl-font-weight, 800);
    font-size: var(--bkbg-drw-ttl-font-size-d, var(--bkbg-drw-ttl-fs, 26px));
    line-height: var(--bkbg-drw-ttl-line-height-d, 1.25);
    letter-spacing: var(--bkbg-drw-ttl-letter-spacing-d, normal);
    word-spacing: var(--bkbg-drw-ttl-word-spacing-d, normal);
    text-transform: var(--bkbg-drw-ttl-text-transform, none);
    font-style: var(--bkbg-drw-ttl-font-style, normal);
    text-decoration: var(--bkbg-drw-ttl-text-decoration, none);
}

.bkbg-drw-editor-wrap .bkbg-drw-subtitle,
.bkbg-drw-app .bkbg-drw-subtitle {
    margin: 0 0 20px;
    text-align: center;
    opacity: 0.65;
    font-family: var(--bkbg-drw-sub-font-family, inherit);
    font-weight: var(--bkbg-drw-sub-font-weight, 400);
    font-size: var(--bkbg-drw-sub-font-size-d, var(--bkbg-drw-sub-fs, 14px));
    line-height: var(--bkbg-drw-sub-line-height-d, 1.5);
    letter-spacing: var(--bkbg-drw-sub-letter-spacing-d, normal);
    word-spacing: var(--bkbg-drw-sub-word-spacing-d, normal);
    text-transform: var(--bkbg-drw-sub-text-transform, none);
    font-style: var(--bkbg-drw-sub-font-style, normal);
    text-decoration: var(--bkbg-drw-sub-text-decoration, none);
}

/* ---- Toolbar ---- */
.bkbg-drw-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    align-items: center;
    margin-bottom: 10px;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 10px;
}

.bkbg-drw-tool-btn {
    background: #f3f4f6;
    border: 1.5px solid #e5e7eb;
    border-radius: 7px;
    padding: 6px 11px;
    font-size: 15px;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, transform 0.1s;
    line-height: 1;
}

.bkbg-drw-tool-btn:hover {
    background: #e0e7ff;
    border-color: #a5b4fc;
}

.bkbg-drw-tool-btn.bkbg-drw-active {
    background: var(--bkbg-drw-accent, #6366f1);
    border-color: var(--bkbg-drw-accent, #6366f1);
    color: #fff;
    font-weight: 700;
}

.bkbg-drw-tool-btn:active {
    transform: scale(0.95);
}

/* ---- Toolbar spacer ---- */
.bkbg-drw-toolbar-sep {
    width: 1px;
    height: 28px;
    background: #e5e7eb;
    margin: 0 2px;
}

/* ---- Palette ---- */
.bkbg-drw-palette {
    display: flex;
    flex-wrap: wrap;
    gap: 5px;
    align-items: center;
}

.bkbg-drw-swatch {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.1s, box-shadow 0.1s;
}

.bkbg-drw-swatch:hover {
    transform: scale(1.2);
}

.bkbg-drw-swatch.bkbg-drw-selected {
    border-color: var(--bkbg-drw-accent, #6366f1);
    box-shadow: 0 0 0 2px var(--bkbg-drw-accent, #6366f1);
    transform: scale(1.2);
}

.bkbg-drw-custom-color {
    width: 22px;
    height: 22px;
    border-radius: 50%;
    border: 2px solid #e5e7eb;
    cursor: pointer;
    padding: 0;
    overflow: hidden;
}

/* ---- Stroke width ---- */
.bkbg-drw-stroke-wrap {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

.bkbg-drw-stroke-label {
    font-size: 12px;
    opacity: 0.6;
    white-space: nowrap;
}

.bkbg-drw-stroke-range {
    width: 80px;
    accent-color: var(--bkbg-drw-accent, #6366f1);
    cursor: pointer;
}

/* ---- Canvas wrapper ---- */
.bkbg-drw-canvas-wrap {
    position: relative;
    border: 1.5px solid #e5e7eb;
    border-radius: 10px;
    overflow: hidden;
    line-height: 0;
    box-shadow: 0 2px 16px rgba(0,0,0,0.06);
}

/* ---- The canvas itself ---- */
.bkbg-drw-canvas {
    display: block;
    max-width: 100%;
    cursor: crosshair;
    touch-action: none;
    user-select: none;
    -webkit-user-select: none;
}

.bkbg-drw-canvas.bkbg-drw-eraser-cur {
    cursor: cell;
}

/* ---- Bottom action bar ---- */
.bkbg-drw-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 12px;
    align-items: center;
}

.bkbg-drw-btn {
    background: #f3f4f6;
    border: 1.5px solid #e5e7eb;
    border-radius: 8px;
    padding: 7px 16px;
    font-size: 13px;
    cursor: pointer;
    color: #374151;
    font-weight: 500;
    transition: background 0.15s, border-color 0.15s;
}

.bkbg-drw-btn:hover {
    background: #e0e7ff;
    border-color: var(--bkbg-drw-accent, #6366f1);
    color: var(--bkbg-drw-accent, #6366f1);
}

.bkbg-drw-dl-btn {
    background: var(--bkbg-drw-accent, #6366f1);
    color: #fff;
    border-color: transparent;
    font-weight: 700;
    margin-left: auto;
}

.bkbg-drw-dl-btn:hover {
    opacity: 0.88;
    border-color: transparent;
    color: #fff;
}

.bkbg-drw-clear-btn:hover {
    background: #fef2f2;
    border-color: #fca5a5;
    color: #ef4444;
}

/* ---- Cursor size indicator (optional overlay) ---- */
.bkbg-drw-cursor-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(0,0,0,0.35);
    pointer-events: none;
    transform: translate(-50%, -50%);
    transition: width 0.1s, height 0.1s;
}

/* ---- Editor preview ---- */
.bkbg-drw-editor-wrap {
    display: block;
}

/* ---- Responsive Typography ---- */
@media (max-width: 1024px) {
    .bkbg-drw-editor-wrap .bkbg-drw-title,
    .bkbg-drw-app .bkbg-drw-title {
        font-size: var(--bkbg-drw-ttl-font-size-t, var(--bkbg-drw-ttl-font-size-d, var(--bkbg-drw-ttl-fs, 26px)));
        line-height: var(--bkbg-drw-ttl-line-height-t, var(--bkbg-drw-ttl-line-height-d, 1.25));
        letter-spacing: var(--bkbg-drw-ttl-letter-spacing-t, var(--bkbg-drw-ttl-letter-spacing-d, normal));
        word-spacing: var(--bkbg-drw-ttl-word-spacing-t, var(--bkbg-drw-ttl-word-spacing-d, normal));
    }
    .bkbg-drw-editor-wrap .bkbg-drw-subtitle,
    .bkbg-drw-app .bkbg-drw-subtitle {
        font-size: var(--bkbg-drw-sub-font-size-t, var(--bkbg-drw-sub-font-size-d, var(--bkbg-drw-sub-fs, 14px)));
        line-height: var(--bkbg-drw-sub-line-height-t, var(--bkbg-drw-sub-line-height-d, 1.5));
        letter-spacing: var(--bkbg-drw-sub-letter-spacing-t, var(--bkbg-drw-sub-letter-spacing-d, normal));
        word-spacing: var(--bkbg-drw-sub-word-spacing-t, var(--bkbg-drw-sub-word-spacing-d, normal));
    }
}

@media (max-width: 767px) {
    .bkbg-drw-editor-wrap .bkbg-drw-title,
    .bkbg-drw-app .bkbg-drw-title {
        font-size: var(--bkbg-drw-ttl-font-size-m, var(--bkbg-drw-ttl-font-size-t, var(--bkbg-drw-ttl-font-size-d, var(--bkbg-drw-ttl-fs, 26px))));
        line-height: var(--bkbg-drw-ttl-line-height-m, var(--bkbg-drw-ttl-line-height-t, var(--bkbg-drw-ttl-line-height-d, 1.25)));
        letter-spacing: var(--bkbg-drw-ttl-letter-spacing-m, var(--bkbg-drw-ttl-letter-spacing-t, var(--bkbg-drw-ttl-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-drw-ttl-word-spacing-m, var(--bkbg-drw-ttl-word-spacing-t, var(--bkbg-drw-ttl-word-spacing-d, normal)));
    }
    .bkbg-drw-editor-wrap .bkbg-drw-subtitle,
    .bkbg-drw-app .bkbg-drw-subtitle {
        font-size: var(--bkbg-drw-sub-font-size-m, var(--bkbg-drw-sub-font-size-t, var(--bkbg-drw-sub-font-size-d, var(--bkbg-drw-sub-fs, 14px))));
        line-height: var(--bkbg-drw-sub-line-height-m, var(--bkbg-drw-sub-line-height-t, var(--bkbg-drw-sub-line-height-d, 1.5)));
        letter-spacing: var(--bkbg-drw-sub-letter-spacing-m, var(--bkbg-drw-sub-letter-spacing-t, var(--bkbg-drw-sub-letter-spacing-d, normal)));
        word-spacing: var(--bkbg-drw-sub-word-spacing-m, var(--bkbg-drw-sub-word-spacing-t, var(--bkbg-drw-sub-word-spacing-d, normal)));
    }
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
    .bkbg-drw-toolbar {
        gap: 4px;
        padding: 6px 8px;
    }

    .bkbg-drw-tool-btn {
        padding: 5px 8px;
        font-size: 13px;
    }

    .bkbg-drw-stroke-range {
        width: 56px;
    }

    .bkbg-drw-actions {
        gap: 6px;
    }

    .bkbg-drw-btn {
        font-size: 12px;
        padding: 6px 12px;
    }
}