source: pro-violet-viettel/docs/template/assets/css/less/sidebar.less

//some sidebar variables
@sidebar-bg:#F2F2F2;
@sidebar-border-right:#CCC;

//@menu-active-color:#0B6CBC;

@menu-bg:#F9F9F9;
@menu-color:#585858;
@menu-hover-indicator:#3382AF;
@menu-subarrow-color:#666;
@menu-open-bg:#FAFAFA;
@menu-active-bg:#FFF;

@submenu-border:#E5E5E5;
@submenu-bg:#FFF;
@submenu-item-color:#616161;
@submenu-item-border:#E4E4E4;
@submenu-item-hover:#4B88B7;
@submenu-item-active-icon:#C86139;


@3rd-level-icon-color:#6A7D87;
@submenu-left-border-style:dotted;

//@submenu-left-border:#CCD7E2;
//@submenu-active-left-border:#BCCFE0;



@menumin-btn-bg:#F3F3F3;
@menumin-btn-border:#E0E0E0;
@menumin-icon-color:#AAA;
@menumin-icon-border:#BBB;
@menumin-icon-bg:#FFF;
@menumin-bg:#F5F5F5;

@menumin-text-border:#DDD;
@menumin-shadow:~"2px 1px 2px 0 rgba(0,0,0,0.2)";

@shortcuts-bg:#FAFAFA;
@shortcuts-border:#DDD;





.sidebar {
 width:@sidebar-width;
 
 float:left;
 position:relative;
 //why not simply position:absolute?
 //because we need the page height to be at least as high as the sidebar in case the page content is too small


 border:1px solid @sidebar-border-right;
 border-width:0 1px 0 0;

 
 background-color:@sidebar-bg;
 
  &:before {/* the grey background of sidebar */

         content:""; display:block;
         width:@sidebar-width;
                
         position:fixed; bottom:0; top:0;
         z-index:-1;
                
         background-color:@sidebar-bg;
         border:1px solid @sidebar-border-right;
         border-width:0 1px 0 0;
 }
 
 &.fixed , &.sidebar-fixed {
        position: fixed;
        z-index: @zindex-navbar-fixed - 1;
        top: @navbar-mh;
        left: 0;
        &:before {
                left: 0;
                right: auto;
        }
 }
}



/* side navigation */
li [class^="icon-"], li [class*=" icon-"]{
 & , .nav-list & {
        width:auto;
 }
}

.nav-list {
 margin:0; padding:0;
 list-style:none;
}

.nav-list .open > a, .nav-list .open > a:hover, .nav-list .open > a:focus {
 background-color: @menu-open-bg;
}

.nav-list > li > a, .nav-list .nav-header {
 margin:0;
}

.nav-list > li {
 display:block;
 padding:0;
 margin:0;

 border:none;
 border-top:1px solid #FCFCFC;
 border-bottom:1px solid #E5E5E5;

 position:relative;

 &:first-child {
        border-top:none;
 }
}

.nav-list li > a:focus {
        outline: none;
}

.nav-list > li {
 > a {
         display:block;
         height:38px; line-height:36px;

         padding:0 16px 0 7px; 
         background-color:@menu-bg;

         color:@menu-color;
         text-shadow:none !important;

         font-size:13px;
         text-decoration:none;

         > [class*="icon-"]:first-child {
                display:inline-block;
                vertical-align:middle;

                min-width:30px;
                text-align:center;

                font-size:18px;
                font-weight:normal;
                
                margin-right:2px;
         }
         
         &:focus {
                background-color:@menu-bg;
                color:@menu-focus-color;
         }
         
         &:hover  {
                background-color:#FFF;
                color:@menu-focus-color;
                &:before {
                        display:block; content:"";
                        position:absolute;
                        top:-1px; bottom:0; left:0;
                        width:3px; max-width:3px; overflow:hidden;
                        background-color:@menu-hover-indicator;
                }
         }

 }
 
 /* the submenu indicator arrow */
 a > .arrow {
        display:inline-block;
        width:14px !important; height:14px;
        line-height:14px;
 
        text-shadow:none;
        font-size:18px;
 
        position:absolute;
        right:11px;
        top:11px;
 
        padding:0;
        color:@menu-subarrow-color;
 }
 a:hover > .arrow , &.active > a  > .arrow , &.open > a > .arrow  {
        color:@menu-focus-color;
 }



 &.separator {
         height:3px;
         background-color:transparent;
         position:static;
         margin:1px 0;

         .box-shadow(none);
 }

 /* menu active/open states */
 &.open > a {
        background-color:@menu-open-bg;
        color:@menu-focus-color;
 }

 &.active {
  background-color:@menu-active-bg;
   > a
  {
         & , &:hover, &:focus, &:active {
                 background-color:@menu-active-bg;
                 color:@menu-active-color;
                 font-weight:bold;
                 font-size:13px;
         }

         > [class*="icon-"] {
                font-weight:normal;
     }

         &:hover:before {/* no left side menu item border on active state */
                display:none;
         }
  }
  //////


  &:after {/* the border on right of active item */
        display:inline-block; content:"";
        position:absolute;
        right:-2px; top:-1px; bottom:0;
        z-index:1;
        
        border:2px solid @menu-active-color;
        border-width: 0 2px 0 0;
  }
 }



 /* submenu */
 &.open {
  border-bottom-color:@submenu-border;
 }


 &.active .submenu {
  display:block;
 }
 .submenu {
   display:none;
   list-style:none;
   margin:0; padding:0;

   position:relative;
   background-color:@submenu-bg;

   border-top:1px solid @submenu-border;

   > li {
         margin-left:0;
         position:relative;
         
         > a {
                 display:block;
                 position:relative;
                 color:@submenu-item-color;

                 padding:7px 0 9px 37px;
                 margin:0;
                 
                 border-top:1px dotted @submenu-item-border;
                 &:focus {
                        text-decoration:none;
                 }
                 &:hover{
                        text-decoration:none;
                        color:@submenu-item-hover;
                }
         }

         &.active > a {
                color:@menu-active-color;
         }


        /* optional icon before each item */
        a > [class*="icon-"]:first-child {
                display:none;

                font-size:12px; font-weight:normal;
                width:18px; height:auto; line-height:12px; text-align:center;
                position:absolute; left:10px; top:11px; z-index:1;

                background-color:#FFF;
        }
        &.active > a > [class*="icon-"]:first-child,
        &:hover > a > [class*="icon-"]:first-child {
                display:inline-block;
        }
        &.active > a > [class*="icon-"]:first-child {
                color:@submenu-item-active-icon;
        }

  }// > li
 }//end of submenu


 > .submenu {//the first level submenu
        > li {
                //tree like menu 
                &:before {
                         /* the horizontal line */
                        content:""; display:inline-block;
                        position:absolute;
                        
                        width:7px;               
                        left:20px; top:17px;
                        border-top:1px @submenu-left-border-style @submenu-left-border;
                }
                &:first-child > a {
                        border-top:1px solid #FAFAFA;
                }
        }

        &:before {
                content:"";
                display:block;
                position:absolute; z-index:1;
                left:18px;
                top:0; bottom:0;
 
                border: 1px @submenu-left-border-style @submenu-left-border;
                border-width: 0 0 0 1px;
        }
 }
 &.active {
        > .submenu {
                > li {
                        &:before {
                                border-top-color:@submenu-active-left-border;
                        }
                }
                &:before {
                        border-left-color:@submenu-active-left-border;
                }
        }
 }


}//end of .nav-list > li 


//.nav-list li 
.nav-list li {
 .active_state_caret() {
        display:block;
        content:"";
         
        position:absolute !important;
        right:0; top:4px;

        border: 8px solid transparent;
        border-width: 14px 10px;
        border-right-color: @menu-active-color;
 }

 .submenu {
        /* needed for webkit based browsers to slideToggle without problem */
        overflow:hidden;
 }

 &.active > a:after {
        .active_state_caret();
 }

 &.open > a:after {/* no caret for open menu item */ //we put this after .active > a:after to override it
        display:none;
 }
 &.active.open > .submenu > li.active.open > a.dropdown-toggle:after {
        /* don't display caret on active open item who is open and has children */
        display: none;
 }
 &.active > .submenu > li.active > a:after {
        /** don't display caret on active item whose parent is not open
        useful for hiding the caret when submenu is sliding up */
        display: none;
 }
 &.active.open > .submenu > li.active > a:after {
        /* display caret on active item whose parent is open */
        display: block;
 }


 &.active.no-active-child {
        > a:after {/* show caret for active menu item with childs which is not open(i.e. no submenu item is active) */
                display:inline-block !important;
        }
 }
}//end of .nav-list li 



.nav-list a {
 .badge , .label {
        font-size:12px;
        padding-left:6px; padding-right:6px;
        position:absolute;
        top:9px; right:11px;
        opacity:0.88;
        [class*="icon-"] {
                vertical-align:middle;
                margin:0;
        }
 }
 &.dropdown-toggle {
        .badge , .label {
                right:28px;
        }
 }
 &:hover {
        .badge , .label {
                opacity:1;
        }
  }
 
}

.nav-list .submenu .submenu a {
 .badge , .label {
        top:6px;
 }
}




/* side menu minimizer icon */
.sidebar-collapse  {
 border-bottom:1px solid @menumin-btn-border;
 background-color:@menumin-btn-bg;
 
 text-align:center;
 padding:3px 0;
 
 position:relative;
 
 
 > [class*="icon-"]{
         display:inline-block;
         
         cursor:pointer;
         font-size:14px;
         color:@menumin-icon-color;
         
         border:1px solid @menumin-icon-border;
         padding:0 5px;
         line-height:18px;
         
         border-radius:16px;

         background-color:@menumin-icon-bg;
         position:relative;
 }
 
 &:before {
        content:"";
        display:inline-block;
         
        height:0;
        border-top:1px solid @menumin-btn-border; 
        position:absolute;
        left:15px; right:15px; top:13px;
 }

}



/* sidebar shortcuts icon */
.sidebar-shortcuts {
 background-color:@shortcuts-bg;
 border-bottom:1px solid @shortcuts-border;
 text-align:center;
 
 line-height:@breadcrumb-height - 2;
 max-height:@breadcrumb-height;
 margin-bottom:0;
}
.sidebar-shortcuts-large {
 padding-bottom:4px;
 
 > .btn {
        width:41px;
        line-height:24px;
        
        margin-top:-2px;
        padding:0;
        
        border-width:4px;
        
        text-align:center;
        > [class*="icon-"] { margin:0; }        
 }
 
}
.sidebar-shortcuts-mini {
 display:none;
 font-size:0;
 width:42px;
 line-height:18px;
 padding-top:2px; padding-bottom:2px;
 
 background-color:@submenu-bg;
 
  > .btn{
         border-width:0 !important;
         font-size:0;
         line-height:0;
         padding:8px !important;
         margin:0 1px;
         
         border-radius:0 !important;
         .opacity(0.85);
  }
}

@media screen and (-webkit-min-device-pixel-ratio:0) { 
    ::safari-only,.sidebar-shortcuts-mini > .btn {//safari only
                margin: 0;
    }
}


//3rd & 4th level menu
.nav-list > li > .submenu {
  li > .submenu {
        border-top:none;
        background-color:transparent;
        display:none;
  }
  li.active > .submenu {
        display:block;
  }

  a > .arrow {
        right:11px; top:10px;
        font-size:16px;
        color:#6B828E;
  }
  
  .open > a, .open > a:hover, .open > a:focus {
        background-color: transparent;
        border-color: @submenu-item-border;
  }

  li > .submenu > li > a > .arrow {
        right:12px;
        top:9px;
  }


  li > .submenu > li {
                line-height:16px;
                &:before {//the tree like menu
                        display:none;
                }

                > a {/*3rd level*/
                        margin-left:20px;
                        padding-left:22px;
                }
                > .submenu > li > a {/*4th level*/
                        margin-left:20px;
                        padding-left:38px;
                }

                a > [class*="icon-"]:first-child {
                        display:inline-block;
                        color:inherit;
                        font-size:14px;
                        
                        position:static;
                        background-color:transparent;
                        margin-right: 1px;
                }


                a {
                        font-size:13px;
                        color:#777;
                        
                        &:hover {
                                color:desaturate(@menu-focus-color, 25%);
                                text-decoration:underline;
                                [class*="icon-"] {
                                        text-decoration:none;
                                        color:desaturate(@menu-focus-color, 25%);
                                }
                        }
                }

  }

  li.open > a {
        color:desaturate(@menu-focus-color, 12%);
        >  [class*="icon-"]:first-child {
                display:inline-block;
        }
        .arrow {
                color:desaturate(@menu-focus-color, 12%);
        }
  }
  li > .submenu li.open > a {
        color:desaturate(@menu-focus-color, 12%);
        >  [class*="icon-"]:first-child {
                display:inline-block;
                color:@menu-focus-color;
        }
        
        .arrow {
                color:desaturate(@menu-focus-color, 12%);
        }
  }

  li > .submenu li.active > a {
        color:desaturate(@menu-active-color, 8%);
        >  [class*="icon-"]:first-child {
                display:inline-block;
                color:desaturate(@menu-active-color, 8%);
        }
  }


}//.nav-list > li > .submenu


.nav-list > li {
  &.active.open li.active > a:after {
        top:2px;
        border-width:14px 8px;
  }
  &.active.open li.active.open li.active > a:after {
        top:0;
  }
}









@import "sidebar-min.less";//minimized sidebar mode



/* side menu toggler in mobile view */
.menu-toggler { 
 display:none;
}



/* responsive sidebar */
@media only screen and (max-width: @screen-sm-max) {
 .sidebar:before {
        display:none;
 }
 .sidebar {
        display:none;
        float:none;
        
        position:absolute;
        z-index:999;
        left:0;
        bottom:auto;
        top:auto !important;/*so that it's applied even if it's .sidebar-fixed */
        margin-top:40px;

        border:1px solid #CCC;
        border-left-width:0;
        box-shadow:2px 1px 2px 0 rgba(0,0,0,0.2);
 }
 
 .sidebar.display {
        display:block;
 }


 .menu-toggler {
        display:inline-block;
        position:absolute; left:0; z-index:998;
        width:52px; height:32px;
        margin-right:2px;
        
        line-height:normal;
        padding-left:33px; padding-top:7px; padding-bottom:1px;
        
        font-size:13px; font-weight:bold;
        text-transform:uppercase;

        background-color:#444;
        color:#F3F3F3;
        
        .box-sizing(content-box);
        
 }
 .menu-toggler:hover {
        text-decoration:none;
 }
 .menu-toggler:before {
        border-top: 1px solid #87B87F;
        border-bottom: 1px solid #6FB3E0;
        height:2px; width:24px;
        content: "";
        position: absolute; z-index:11;
        top: 13px; left:4px;

        .transition(~"all 0.1s ease");
        -o-transition: none;
        
        .box-sizing(content-box);
 }
 .menu-toggler:after {
        border-top: 1px solid #FFA24D;
        border-bottom: 1px solid #D15B47;
        content: "";
        height:2px;     width:24px;
        position: absolute;
        top:19px; left:4px;


        .transition(~"all 0.1s ease");
        -o-transition: none;
        
        .box-sizing(content-box);
 }
 .menu-toggler.display:before {
        height:4px;
        top: 8px;
        border-width:2px;
 }
 .menu-toggler.display:after {
        height:4px;
        top:20px;
        border-width:2px;
 }


 .menu-toggler > .menu-text {
        display:block;
        position:absolute;
        bottom:-18px; left:0;
        border:1px solid transparent;
        border-width:9px 42px;
        border-top-color:#444;
 }
 .menu-toggler > .menu-text:after {
        display:block;
        color:#FFF;
        
        content: @menu-button-text;
        
        position:absolute;
        left: -8px;//change these to adjust text placement
        top: -41px;
 }

 
 
 .nav-list > li.active:after {
        display:none;
 }
 .nav-list  li.active > a:after {
        display:none;
 }

 .nav-list li.active.open > .submenu > li.active > a:after {
        display:none;
 }
 
 .menu-min .nav-list > li.active:after {
        display:block;
 }
 .menu-min .nav-list >  li.active > a:after {
        display:block;
 }
}


@media only screen and (max-width: @screen-tiny) {
 .menu-toggler {
        width:0;
 }
 .menu-toggler > .menu-text{
        border-width:7px 16px;
        bottom:-14px;
 }
 .menu-toggler > .menu-text:after {
        font-size:9px; font-weight:normal;
        color:#FFF;
        position:absolute;
        left:-13px; top:-42px;
 }

 .menu-toggler:before ,  .menu-toggler:after {
        margin-top: 8px;
 }
 .menu-toggler.display:before ,  .menu-toggler.display:after {
        height:2px;
        border-width:1px;
 }
 .menu-toggler.display:before {
        top:13px;
 }
 .menu-toggler.display:after {
        top:19px;
 }
}





/* not used yet */
/**
@media only screen and (max-width: 979px) {
 .sidebar.responsive-min {
   display:block;
   float:none;
   position:absolute;
   border-width:0 1px 1px 0;
  
   border-left:none;
   box-shadow:none;
   margin-top:0;
   z-index:14;
 }

 .sidebar.responsive-min.menu-min {
        border-bottom:none;
 }
 .sidebar.responsive-min.menu-min:before {
   display:block;
 }

.sidebar.responsive-min + .main-content {
        margin-left:43px !important;
 }
 .sidebar.responsive-min + .main-content .breadcrumbs.breadcrumbs-fixed { left:43px; }
 .sidebar.responsive-min + .main-content .breadcrumbs .breadcrumb {margin-left:10px;}

 .menu-toggler.responsive-min {
        display:none !important;
 }
}
*/