/* Main sidebar active state: communicate selection through surface contrast only. */
.sidebar .tool-btn.active,
.sidebar .tool-btn.active:hover,
.sidebar .tool-btn.active:focus,
.sidebar .tool-btn.active:focus-visible,
.sidebar .sidebar-btn.active,
.sidebar .sidebar-btn.active:hover,
.sidebar .sidebar-btn.active:focus,
.sidebar .sidebar-btn.active:focus-visible {
    border: 0 !important;
    border-top: 0 !important;
    border-right: 0 !important;
    border-bottom: 0 !important;
    outline: none !important;
    box-shadow: none !important;
}

.sidebar .tool-btn.active::before,
.sidebar .tool-btn.active::after,
.sidebar .sidebar-btn.active::before,
.sidebar .sidebar-btn.active::after {
    display: none !important;
    content: none !important;
}

/* Keep only the slim left selection marker used by the main navigation. */
.sidebar .tool-btn.active,
.sidebar .sidebar-btn.active {
    border-left: 2px solid rgba(255, 255, 255, 0.72) !important;
}

body.light-mode .sidebar .tool-btn.active,
body.light-mode .sidebar .sidebar-btn.active {
    border-left-color: var(--logicum-active-accent, rgba(15, 23, 42, 0.58)) !important;
}