/* Smart Teacher V52.17 - mobile navigation only.
   Desktop navigation remains exactly as V52.16. */
.mobile-nav-toggle-v5217,
.mobile-nav-current-v5217{display:none}

@media (max-width: 800px){
  .topbar{
    position:sticky!important;
    top:0!important;
    z-index:1000!important;
    overflow:visible!important;
  }

  .topbar .topbar-inner{
    position:relative!important;
    width:100%!important;
    max-width:none!important;
    padding:8px 10px!important;
    margin:0!important;
    display:grid!important;
    grid-template-columns:minmax(0,1fr) auto!important;
    align-items:center!important;
    gap:8px!important;
  }

  .topbar .brand{
    min-width:0!important;
    gap:9px!important;
  }

  .topbar .site-logo{
    width:40px!important;
    height:40px!important;
    min-width:40px!important;
    border-radius:12px!important;
    padding:4px!important;
  }

  .topbar .brand > div{
    min-width:0!important;
  }

  .topbar .brand h1{
    font-size:15px!important;
    white-space:nowrap!important;
    overflow:hidden!important;
    text-overflow:ellipsis!important;
  }

  .topbar .brand p{
    display:none!important;
  }

  .mobile-nav-toggle-v5217{
    display:inline-flex!important;
    align-items:center!important;
    justify-content:center!important;
    gap:7px!important;
    min-width:48px!important;
    min-height:42px!important;
    padding:7px 10px!important;
    border:1px solid var(--line)!important;
    border-radius:13px!important;
    background:rgba(255,255,255,.06)!important;
    color:var(--text)!important;
    font:inherit!important;
    cursor:pointer!important;
  }

  .mobile-nav-toggle-v5217 .mobile-nav-icon-v5217{
    font-size:23px!important;
    line-height:1!important;
  }

  .mobile-nav-current-v5217{
    display:block!important;
    max-width:92px!important;
    white-space:nowrap!important;
    overflow:hidden!important;
    text-overflow:ellipsis!important;
    font-size:12px!important;
    font-weight:800!important;
  }

  .topbar .nav,
  .user-topbar-v523 .nav,
  .topbar .nav[data-staff-nav]{
    display:none!important;
    position:absolute!important;
    top:calc(100% + 6px)!important;
    inset-inline:8px!important;
    width:auto!important;
    max-width:none!important;
    max-height:calc(100vh - 78px)!important;
    overflow-y:auto!important;
    overflow-x:hidden!important;
    grid-template-columns:1fr!important;
    gap:7px!important;
    padding:10px!important;
    border:1px solid var(--line)!important;
    border-radius:16px!important;
    background:rgba(7,20,36,.985)!important;
    box-shadow:0 18px 45px rgba(0,0,0,.38)!important;
    overscroll-behavior:contain!important;
  }

  body[data-account-role="manager"] .topbar .nav[data-staff-nav]{
    background:rgba(30,22,8,.985)!important;
  }

  body[data-account-role="responsible"] .topbar .nav[data-staff-nav]{
    background:rgba(6,35,31,.985)!important;
  }

  .topbar.mobile-nav-open-v5217 .nav,
  .topbar.mobile-nav-open-v5217 .nav[data-staff-nav]{
    display:grid!important;
  }

  .topbar .nav a,
  .topbar .nav button,
  .user-topbar-v523 .nav a,
  .user-topbar-v523 .nav button{
    width:100%!important;
    min-height:44px!important;
    justify-content:flex-start!important;
    text-align:right!important;
    white-space:normal!important;
    padding:10px 13px!important;
    border-radius:12px!important;
  }

  .topbar .nav a.active{
    border-color:rgba(110,231,255,.45)!important;
    background:rgba(110,231,255,.12)!important;
  }

  .mobile-nav-backdrop-v5217{
    display:none;
    position:fixed;
    inset:0;
    z-index:999;
    background:rgba(0,0,0,.24);
  }

  body.mobile-nav-open-body-v5217 .mobile-nav-backdrop-v5217{
    display:block;
  }
}

@media (max-width: 430px){
  .mobile-nav-current-v5217{max-width:72px!important}
  .topbar .brand h1{font-size:14px!important}
  .topbar .site-logo{width:38px!important;height:38px!important;min-width:38px!important}
}