.mobile-menu,.close-menu,.menu-backdrop{display:none}.protected-stage{overflow:auto!important;background:#27313d}.viewer-content{min-height:100%;width:100%}.viewer-loading{display:grid;place-items:center;min-height:70vh;color:white;font-weight:800}.pdf-pages{display:grid;justify-items:center;gap:18px;padding:22px 12px;-webkit-user-select:none;user-select:none}.pdf-page{position:relative;background:white;box-shadow:0 8px 26px #0007;max-width:100%;overflow:hidden}.pdf-page canvas{display:block;max-width:100%;height:auto!important}.page-watermark{position:static;display:block;pointer-events:none;transform:none;box-sizing:border-box;width:100%;padding:9px 12px;border-top:1px solid #e4e9ed;background:#f8fafb;font:500 11px/1.5 Arial,sans-serif;color:#667787;text-align:center;white-space:normal;overflow-wrap:anywhere}.secure-video{width:100%;height:calc(100vh - 64px);border:0;background:#000}.viewer-stage>.viewer-watermark{display:none}.student-actions button,.catalogue-card,.request-card,.topic-box{transition:transform .18s ease,box-shadow .18s ease}.student-actions button:hover,.catalogue-card:hover,.request-card:hover,.topic-box:hover{transform:translateY(-2px);box-shadow:0 12px 30px #0f172a13}
.pdf-page-pending{background:linear-gradient(110deg,#fff 28%,#eef2f6 40%,#fff 52%);background-size:240% 100%;animation:pdf-page-loading 1.4s ease-in-out infinite}.pdf-page-error:after{content:"This page could not be displayed. Close and reopen the notes.";position:absolute;inset:0;display:grid;place-items:center;padding:24px;text-align:center;color:#8b1538;background:#fff;font-weight:700}@keyframes pdf-page-loading{to{background-position:-240% 0}}
@media(max-width:760px){body.nav-open{overflow:hidden}.dashboard .workspace header{height:66px;padding:0 15px;gap:10px;position:sticky;top:0;z-index:9}.workspace header>div{min-width:0;flex:1}.workspace header h2{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.badge{font-size:0;padding:8px}.badge:after{content:"Secure";font-size:9px}.mobile-menu{display:grid;place-items:center;flex:0 0 42px;width:42px;height:42px;border:0;border-radius:10px;background:#e6f4f3;color:var(--teal);font-size:23px}.dashboard aside{display:flex!important;z-index:31;width:min(84vw,310px);transform:translateX(-105%);transition:transform .25s ease;box-shadow:12px 0 35px #0003}.dashboard aside.menu-open{transform:translateX(0)}.close-menu{display:grid;place-items:center;margin-left:auto;width:36px;height:36px;border:1px solid #ffffff30;border-radius:9px;background:#ffffff12;color:white;font-size:24px}.menu-backdrop{position:fixed;inset:0;z-index:30;border:0;background:#071e2580;opacity:0;pointer-events:none;transition:opacity .2s}.menu-backdrop.visible{display:block;opacity:1;pointer-events:auto}.page{padding:25px 15px 90px}.page h1{font-size:27px;line-height:1.16}.student-actions{grid-template-columns:1fr 1fr!important;gap:11px}.student-actions button{padding:17px;min-height:135px}.student-actions b{font-size:22px}.panel{padding:17px;border-radius:13px}.catalogue-grid,.request-grid,.topic-box-grid{gap:12px}.material-slots button,.material-slots span{min-height:44px}.viewer-head{height:64px;padding:0 12px}.viewer-head b{display:block;max-width:65vw;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.viewer-head small{font-size:9px}.viewer-head button{padding:9px 12px}.pdf-pages{padding:12px 5px;gap:12px}.page-watermark{font-size:11px}.brand-panel{min-height:235px}.brand-panel h1{font-size:27px}.login-panel{padding:18px}.login-card{border-radius:16px!important}.form-grid{gap:12px}}
@media(max-width:390px){.student-actions{grid-template-columns:1fr!important}}