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a:hover i{opacity:1}.submenu a.active{background:var(--sidebar-active-bg);color:var(--primary);font-weight:600}.submenu a.active i{color:var(--primary);opacity:1}.sidebar a.active:before,.section-link.active:before,.submenu a.active:before,.sidebar-collapsed-nav a.active:before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:3px;height:62%;min-height:22px;border-radius:0 4px 4px 0;background:var(--primary)}.sidebar-collapsed-nav a.active:before{left:3px;height:48%;min-height:18px}.sidebar a:focus-visible,.section-link:focus-visible,.section-toggle:focus-visible,.sidebar-collapsed-nav a:focus-visible,.sidebar button.nav-link:focus-visible,.sidebar-toggle:focus-visible{outline:2px solid var(--primary);outline-offset:2px}.sidebar-account{margin-top:auto;padding-top:1rem;border-top:1px solid var(--border);display:flex;flex-direction:column;gap:2px;flex-shrink:0}.sidebar{display:flex;flex-direction:column}.sidebar.glass-panel{background:var(--sidebar-bg);backdrop-filter:none;-webkit-backdrop-filter:none}.account-info{display:flex;gap:10px;align-items:center;margin-bottom:.5rem;padding:.35rem .5rem;font-size:.875rem}.account-info i{font-size:1.5rem;color:var(--muted)}.account-info strong{display:block;font-size:.9375rem}.account-info small{color:var(--muted);font-size:.8125rem}.sidebar button.nav-link{color:var(--text);font-size:.875rem;font-weight:500;min-height:42px}.sidebar button.nav-link:hover{background:var(--sidebar-hover-bg)}.topbar-left,.topbar-right{display:flex;align-items:center;gap:10px;flex-wrap:wrap}.home-link{font-weight:700;color:var(--text)}.user-email{color:var(--muted);font-size:.9rem}.content-area{min-height:calc(100vh - 120px)}.home-dashboard h1{margin:0}.student-hub-content .hub-panel{max-width:480px;margin:0 auto}.hub-panel 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