#outline {
    list-style: none;
    padding: 0;
    margin: 0;
}

.line {
    display: flex;
    align-items: flex-start;
    padding: 2px 0;
    position: relative;
    min-height: 26px;
    cursor: text;
}

.line > .note-editor {
    flex: 1;
}
.bullet {
    width: 20px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: grab;
    user-select: none;
    color: #999;
    font-size: 14px;
    flex-shrink: 0;
}

.bullet:hover { color: #333; }

.line.empty .bullet { color: #ccc; }

.line.dragging { opacity: 0.4; }

.line.drop-before::before,
.line.drop-after::after {
    content: '';
    position: absolute;
    left: 0;
    right: 0;
    height: 2px;
    background: #3b82f6;
    pointer-events: none;
}
.line.drop-before::before { top: 0; }
.line.drop-after::after { bottom: 0; }

.line.drop-into > .note-editor {
    background: #dbeafe;
    box-shadow: 0 0 0 1px #3b82f6;
}