.skm-main-navbar.navbar,.skm-main-navbar{background:var(--skm-bg);z-index:1030;border-bottom:1px solid #e7e7e7;min-height:52px;position:fixed;top:0;left:0;right:0;padding:0!important}.skm-main-navbar>.container{align-items:center;min-height:52px;display:flex}.skm-main-navbar-header{z-index:999;align-items:center;min-height:52px;display:flex;position:relative}.skm-main-navbar-brand{line-height:var(--skm-lh-tight);align-items:center;padding:0 14px;display:inline-flex}.skm-main-navbar-brand img{vertical-align:middle}.skm-main-navbar-collapse{flex:auto;justify-content:space-between;align-items:center;min-height:52px;position:relative;display:flex!important}.skm-main-navbar-nav{flex-wrap:wrap;align-items:center;gap:2px;margin:0;padding-left:0;list-style:none;display:flex}.skm-main-navbar-right{justify-content:flex-end;margin-left:auto}.skm-main-navbar-nav>li{list-style:none;position:relative}.skm-main-navbar .dropdown-menu,.skm-main-navbar .dropdown-menu>li{list-style:none}.skm-main-navbar-nav>li>a{border-radius:var(--skm-radius,6px);color:var(--skm-text,#2d3338);font-size:var(--skm-fs-md);font-weight:var(--skm-fw-medium);letter-spacing:.1px;white-space:nowrap;padding:10px 16px;line-height:20px;text-decoration:none;transition:background .18s,color .18s;position:relative}.skm-main-navbar-nav>li>a:hover,.skm-main-navbar-nav>li>a:focus{color:var(--skm-primary,#c0392b);background:#c0392b14;text-decoration:none}.skm-main-navbar-nav>li>a.active{color:var(--skm-primary,#c0392b);background:#c0392b1f}.skm-nav-branch-switcher{isolation:isolate;justify-content:flex-start;align-items:center;gap:0;margin:8px 6px;padding:0;display:inline-flex;overflow:visible}.skm-nav-branch-switcher label,.skm-nav-branch-option{background:var(--skm-bg,#fff);border:1px solid var(--skm-border,#d9dee4);box-sizing:border-box;color:var(--skm-muted,#656d76);font-size:var(--skm-fs-sm,12px);font-weight:var(--skm-fw-semi,600);-webkit-user-select:none;user-select:none;white-space:nowrap;justify-content:center;align-items:center;min-height:30px;margin:0;padding:0 12px;line-height:1;transition:background .16s,border-color .16s,color .16s;display:inline-flex;position:relative}.skm-nav-branch-switcher label:first-child{border-radius:var(--skm-radius) 0 0 var(--skm-radius)}.skm-nav-branch-switcher label:last-child{border-radius:0 var(--skm-radius) var(--skm-radius) 0}.skm-nav-branch-switcher label:not(:first-child){margin-left:-1px}.skm-nav-branch-switcher input[type=radio]{opacity:0;pointer-events:none;width:0;height:0;position:absolute}.skm-nav-branch-switcher span{line-height:var(--skm-lh-tight,1.2);justify-content:center;align-items:center;display:inline-flex}.skm-nav-branch-switcher label:hover,.skm-nav-branch-switcher label:focus-within{background:var(--skm-primary-soft,#c0392b1a);border-color:var(--skm-primary,#c0392b);color:var(--skm-primary,#c0392b);z-index:2}.skm-nav-branch-option--active{background:var(--skm-primary-soft,#c0392b1a);border-color:var(--skm-primary,#c0392b);color:var(--skm-primary-on-soft,#a83228);cursor:default;z-index:3}.skm-nav-branch-switcher label:has(input:checked){background:var(--skm-primary-soft,#c0392b1a);border-color:var(--skm-primary,#c0392b);color:var(--skm-primary-on-soft,#a83228);cursor:default;z-index:3}.skm-main-navbar a:focus-visible{outline:2px solid var(--skm-primary,#c0392b);outline-offset:-2px}.skm-main-navbar .dropdown-menu{background:var(--skm-bg);border:1px solid var(--skm-border,#d9dee4);border-radius:10px;min-width:200px;margin-top:8px;padding:8px 0;box-shadow:0 10px 28px #0000001a,0 2px 6px #0000000f}.skm-main-navbar .dropdown-menu>li:not(.dropdown-header),.skm-main-navbar .dropdown-menu>li.dropdown-item{background:0 0!important;padding:0!important}.skm-main-navbar .dropdown-menu .dropdown-header{background:var(--skm-thead,#f4f6f8);color:var(--skm-text,#2d3338);font-size:var(--skm-fs-sm,12px);font-weight:var(--skm-fw-bold,700);letter-spacing:.2px;pointer-events:none;text-transform:none;border:0;line-height:1.4;margin:6px 0 0!important;padding:6px 18px!important}.skm-main-navbar .dropdown-menu>.dropdown-header:first-child{margin-top:0!important}.skm-main-navbar .dropdown-menu .dropdown-divider{display:none}.skm-main-navbar .dropdown-menu>li>a{color:var(--skm-text,#2d3338);font-size:var(--skm-fs-base);font-weight:var(--skm-fw-medium);line-height:var(--skm-lh-relaxed);white-space:nowrap;background:0 0;border:0;border-radius:4px;margin:0 6px;padding:6px 12px;text-decoration:none;transition:background .15s,color .15s;display:block}.skm-main-navbar .dropdown-menu>li>a:hover,.skm-main-navbar .dropdown-menu>li>a:focus{color:var(--skm-primary,#c0392b);background:#c0392b14;text-decoration:none}.skm-main-navbar .dropdown.is-open>.dropdown-menu,.skm-main-navbar .dropdown:hover>.dropdown-menu{display:block}.skm-main-nav-caret{vertical-align:middle;border-top:4px solid;border-left:4px solid #0000;border-right:4px solid #0000;width:0;height:0;margin-left:4px;display:inline-block}.skm-main-navbar .skm-main-navbar-toggler{background:var(--skm-primary,#c0392b);color:var(--skm-on-dark);cursor:pointer;font-size:var(--skm-fs-xs);font-weight:var(--skm-fw-bold);letter-spacing:.5px;width:auto;min-width:56px;height:42px;z-index:var(--skm-z-base);border:0;border-radius:8px;flex-direction:column;justify-content:center;align-items:center;gap:4px;margin:5px 0;padding:6px 10px;transition:background .18s,box-shadow .18s,transform .15s;display:none;position:relative;box-shadow:0 2px 6px #c0392b33}.skm-main-navbar .navbar-toggler,.skm-main-navbar .navbar-toggler:focus{box-shadow:none}.skm-main-navbar .skm-main-navbar-toggler:hover,.skm-main-navbar .skm-main-navbar-toggler:focus,.skm-main-navbar .skm-main-navbar-toggler[aria-expanded=true]{background:var(--skm-primary-dark,#a93226);color:var(--skm-on-dark);outline:0;transform:translateY(-1px);box-shadow:0 3px 10px #c0392b52}.skm-main-navbar .skm-main-navbar-toggler:focus-visible{outline-offset:-3px;outline:2px solid #fff}.skm-main-navbar .skm-main-navbar-toggler-line{background:var(--skm-bg);border-radius:2px;width:20px;height:2px;transition:background .18s;display:block}.skm-main-navbar .skm-main-navbar-toggler-label{font-size:10px;font-weight:var(--skm-fw-bold);letter-spacing:.5px;line-height:var(--skm-lh-tight);text-transform:uppercase;margin-top:2px;display:block}.homework_link{display:none}.homework_link a{background:var(--skm-primary,#c0392b);border-radius:var(--skm-radius);font-size:var(--skm-fs-base);font-weight:var(--skm-fw-semi);line-height:var(--skm-lh-tight);align-items:center;padding:8px 14px;text-decoration:none;transition:background .2s;display:inline-flex;color:var(--skm-on-dark)!important}.homework_link a:hover,.homework_link a:focus{background:var(--skm-primary-dark,#a93226);color:var(--skm-on-dark);text-decoration:none}@media (width<=1399px){.skm-main-navbar-right{margin-right:0!important}.skm-main-navbar-nav{margin:0!important}.skm-main-navbar-nav>li>a{padding:10px 12px!important;display:inline-block!important}.skm-nav-branch-switcher label{min-height:28px;padding:0 10px;font-size:11px}}@media (width<=767.98px){.skm-main-navbar>.container{display:block}.skm-main-navbar-header{justify-content:flex-start;gap:8px}.skm-main-navbar-header .homework_link{margin-left:auto;display:inline-flex}.skm-main-navbar .skm-main-navbar-toggler{display:inline-flex!important}.skm-main-navbar-collapse{width:100%;max-height:500px;overflow-y:auto;display:none!important}.skm-main-navbar-collapse.show{display:block!important}.skm-main-navbar-nav,.skm-main-navbar-right{margin-left:0;display:block}.skm-main-navbar-nav>li>a{padding:10px 15px!important;display:block!important}.skm-main-navbar .dropdown-menu{box-shadow:none;float:none;border:0;width:100%;padding-left:16px;position:static}}