.teacher-nav{position:sticky;top:0;z-index:50;background:#1e3740;color:#fff;box-shadow:0 2px 8px rgba(15,23,42,.15)}.teacher-nav__row{display:flex;align-items:center;justify-content:space-between;gap:2rem;max-width:1536px;margin:0 auto;padding:.75rem 1.5rem}.teacher-nav .teacher-nav__brand{display:inline-flex;flex-shrink:0;align-items:center;gap:.625rem;color:#fff;font-size:1.25rem;font-weight:700;text-decoration:none}.teacher-nav__brand img{width:44px;height:44px;flex-shrink:0}.teacher-nav__desktop,.teacher-nav__leadership{display:none}.teacher-nav .teacher-nav__link,.teacher-nav .teacher-nav__toggle{display:inline-flex;align-items:center;gap:.5rem;min-height:44px;padding:.625rem .75rem;border:1px solid transparent;border-radius:.5rem;background:transparent;color:#fff;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:.875rem;font-weight:500;line-height:1.4;text-align:left;text-decoration:none;cursor:pointer}.teacher-nav__link i,.teacher-nav__toggle i{flex-shrink:0;width:1.125rem;text-align:center}.teacher-nav .teacher-nav__link:hover,.teacher-nav .teacher-nav__toggle:hover{background:rgba(255,255,255,.1);color:#fff}.teacher-nav .teacher-nav__link[aria-current="page"]{background:rgba(250,223,169,.12);color:#fadfa9}.teacher-nav a:focus-visible,.teacher-nav button:focus-visible{outline:2px solid #fadfa9;outline-offset:3px}.teacher-nav .teacher-nav__logout,.teacher-nav .teacher-nav__toggle{border-color:rgba(255,255,255,.35)}.teacher-nav form{margin:0}.teacher-nav__section-label{color:#fadfa9;font-family:system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:.6875rem;font-weight:700;letter-spacing:.1em;text-transform:uppercase}.teacher-nav__mobile{position:absolute;top:100%;left:0;right:0;display:flex;flex-direction:column;gap:.25rem;max-height:calc(100vh - 80px);max-height:calc(100dvh - 80px);overflow-y:auto;overscroll-behavior:contain;padding:.75rem 1.5rem 1rem;border-top:1px solid rgba(255,255,255,.15);background:#1e3740;box-shadow:0 8px 16px rgba(15,23,42,.2)}.teacher-nav__mobile[hidden]{display:none}.teacher-nav__mobile .teacher-nav__section-label{margin-top:.5rem;padding:1rem .75rem .25rem;border-top:1px solid rgba(255,255,255,.15)}.teacher-nav__mobile .teacher-nav__logout{width:100%;margin-top:.5rem}@media (min-width:80rem){.teacher-nav__desktop{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:.25rem;min-width:0}.teacher-nav__desktop .teacher-nav__link,.teacher-nav__leadership .teacher-nav__link{white-space:nowrap}.teacher-nav .teacher-nav__toggle,.teacher-nav__mobile{display:none}.teacher-nav__leadership{display:block;border-top:1px solid rgba(255,255,255,.12);background:rgba(0,0,0,.1)}.teacher-nav__leadership .teacher-nav__row{justify-content:flex-start;flex-wrap:wrap;gap:.5rem;padding-top:.25rem;padding-bottom:.25rem}.teacher-nav__leadership .teacher-nav__section-label{margin-right:1rem}}@media (max-width:40rem){.teacher-nav__row{gap:1rem;padding:.625rem 1rem}.teacher-nav__mobile{padding-right:1rem;padding-left:1rem}}