/* ==========================================================================
   Left Toolbar — Container, tool buttons
   Single source of truth for #drawing-toolbar base styles.
   ========================================================================== */

#drawing-toolbar {
    position: absolute;
    top: 50px;
    left: 0;
    width: 44px;
    bottom: 0;
    background: var(--toolbar-bg, #F3F4F6);
    border-right: 1px solid var(--toolbar-border, #d1d5db);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 6px 0 6px;
    gap: 0;
    z-index: 20;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: none;
    transition: background 0.15s;

    /* Dynamic sizing — set by toolbar-responsive.js */
    --dt-btn-size: 32px;
    --dt-gap: 2px;
    --dt-icon-size: 18px;
}

#drawing-toolbar::-webkit-scrollbar {
    width: 0;
    display: none;
}

/* Individual tool button */
.dt-btn {
    position: relative;
    width: var(--dt-btn-size);
    height: var(--dt-btn-size);
    background: transparent;
    border: none;
    border-radius: 6px;
    color: var(--toolbar-icon, #374151);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    padding: 0;
    margin: var(--dt-gap) 0;
    transition: background 0.12s, color 0.12s;
    flex-shrink: 0;
}
.dt-btn svg {
    width: var(--dt-icon-size);
    height: var(--dt-icon-size);
    pointer-events: none;
}
.dt-btn:hover {
    background: var(--toolbar-hover, rgba(0,0,0,0.08));
    color: var(--toolbar-icon, #374151);
}
.dt-btn.active {
    background: rgba(41, 98, 255, 0.18);
    color: var(--ui-primary, #2962ff);
}
/* Toggle-on state (magnet, lock-all, visibility) */
.dt-btn.toggle-on {
    background: var(--ui-primary, #2962ff);
    color: #ffffff;
    border-radius: 6px;
}
.dt-btn.toggle-on:hover {
    background: var(--ui-primary, #2962ff);
    opacity: 0.9;
}

/* Flyout marker — hidden by default, revealed only on hover so no
   permanent corner dot sits on the icons. The hover behavior (flyout
   opening / tooltip) signals that a tool has more options. */
.dt-arrow {
    position: absolute;
    bottom: 3px;
    right: 3px;
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 0 0 4px 4px;
    border-color: transparent transparent currentColor transparent;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.12s;
}
.dt-btn:hover .dt-arrow {
    opacity: 0.55;
}

:root {
    --dt-control-h: 36px;
    --drawing-controls-height: 44px;
}

/* ==========================================================================
   Drawing Mode Badge — floating indicator showing active tool / edit target
   ========================================================================== */

#drawing-mode-badge {
    z-index: 9300;
    display: none;
    align-items: center;
    height: var(--drawing-controls-height);
    min-height: var(--drawing-controls-height);
    box-sizing: border-box;
    gap: 6px;
    padding: 0 10px 0 7px;
    border-radius: 8px;
    background: rgba(18, 36, 24, 0.92);
    color: #d1fae5;
    font-size: 12px;
    font-weight: 500;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    pointer-events: auto;
    opacity: 0;
    transform: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
    white-space: nowrap;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1px solid rgba(255, 255, 255, 0.06);
}
#drawing-mode-badge.dm-visible {
    opacity: 1;
    transform: none;
}
#drawing-mode-badge .dm-badge-icon {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}
#drawing-mode-badge .dm-badge-icon svg {
    width: 15px;
    height: 15px;
    stroke: #22c55e;
    fill: none;
    stroke-width: 1.8;
}
#drawing-mode-badge .dm-badge-label {
    line-height: 1;
}

#drawing-mode-badge .dm-badge-close {
    pointer-events: auto;
    width: 18px;
    height: 18px;
    border: none;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.12);
    color: inherit;
    font-size: 14px;
    line-height: 1;
    padding: 0;
    margin-left: 2px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: background 0.12s ease, transform 0.12s ease;
}
#drawing-mode-badge .dm-badge-close:hover {
    background: rgba(255, 255, 255, 0.22);
    transform: scale(1.04);
}

#drawing-mode-badge .dm-badge-label {
    line-height: 1;
}

#drawing-controls-group {
    position: fixed;
    left: 50%;
    top: calc(var(--topbar-h, 50px) + var(--chart-header-h, 28px) + 8px);
    transform: translateX(-50%);
    z-index: 9300;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    pointer-events: none;
    max-width: calc(100vw - 16px);
    box-sizing: border-box;
}

#drawing-controls-group > * {
    pointer-events: auto;
    margin: 0;
    position: static !important;
    left: auto !important;
    top: auto !important;
    right: auto !important;
    bottom: auto !important;
    transform: none !important;
}