.arrow {
    transition: transform 0.3s ease;
}

.arrow.active {
    transform: rotate(180deg);
}

.menu-group {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.menu-group.open {
    max-height: 1000px;
}

.left-menu {
    width: 220px;
    max-width: 0;
    min-width: 0;
    flex-shrink: 0;
    overflow: hidden;
    background: white;
    border-color: transparent;
    transition: max-width 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    margin-right 0.4s cubic-bezier(0.4, 0, 0.2, 1),
    border-color 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    overflow-y: auto;
}

.left-menu::-webkit-scrollbar {
    display: none;
}

.left-menu.opened {
    max-width: 220px;
    margin-right: 16px;
    border: 1px solid var(--gray200);
}

.ripple {
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);  /* плавная */
}

.ripple:active {
    background-color: var(--gray100);
    transform: translateY(1px) scale(0.98);
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.fade.ng-hide-add,
.fade.ng-hide-remove {
    transition: all 0.3s ease;
}

.fade.ng-hide {
    opacity: 0;
}