.student-actions,.catalogue-grid,.request-grid,.topic-box-grid,.admin-request-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px;margin-bottom:22px}.student-actions{grid-template-columns:repeat(4,minmax(0,1fr))}.student-actions button{display:grid;text-align:left;gap:5px;padding:22px;background:white;border:1px solid var(--line);border-radius:14px;color:var(--navy);cursor:pointer}.student-actions b{font-size:25px;color:var(--teal)}.student-actions span{font-weight:800}.student-actions small{color:var(--gray)}.catalogue-card .code{color:var(--teal);font-weight:900}.catalogue-card>div{display:flex;flex-wrap:wrap;gap:8px}.catalogue-card button,.request-card button{border:0;border-radius:7px;padding:10px 13px;background:var(--teal);color:white;font-weight:800;cursor:pointer}.request-card>span:first-child,.admin-request>div>span{font-size:11px;font-weight:800;color:var(--teal)}.request-card button:disabled{background:#cbd5e1;color:#475569}.price{font-weight:900;color:var(--wine)}.topic-box{position:relative;padding-top:25px}.topic-box .topic-number{position:absolute;right:18px;top:18px}.material-slots{display:grid;grid-template-columns:1fr 1fr;gap:9px;margin-top:16px}.material-slots button,.material-slots span{border-radius:8px;padding:11px;text-align:center}.material-slots button{border:0;background:var(--teal);color:white;font-weight:800;cursor:pointer}.material-slots span{background:#f1f5f9;color:#64748b;font-size:12px}.admin-request{display:grid;grid-template-columns:1fr auto;gap:10px}.admin-request p small{display:block;color:var(--gray)}.decision-buttons{grid-column:1/-1;display:flex;gap:9px}.decision-buttons button{border:0;border-radius:7px;background:var(--teal);color:white;padding:10px 14px;font-weight:800}.decision-buttons .reject{background:var(--wine)}.viewer-overlay{position:fixed;inset:0;z-index:100;background:#111827;display:grid;grid-template-rows:64px 1fr}.viewer-head{display:flex;align-items:center;justify-content:space-between;padding:0 22px;color:white;background:#063f49}.viewer-head small{display:block;color:#bfe0e2}.viewer-head button{background:var(--wine);color:white;border:0;border-radius:7px;padding:9px 16px;font-weight:800}.viewer-stage{position:relative;overflow:hidden}.viewer-stage iframe{width:100%;height:100%;border:0;background:#e5e7eb}.viewer-watermark{position:absolute;z-index:2;pointer-events:none;left:50%;top:50%;transform:translate(-50%,-50%) rotate(-28deg);font-weight:900;font-size:24px;color:#8b15382b;white-space:nowrap}.status.rejected{background:#fde8e8;color:#a61b34}.status.pending{background:#fff4d6;color:#986b00}@media(max-width:1000px){.student-actions{grid-template-columns:repeat(2,1fr)}}@media(max-width:760px){.student-actions,.catalogue-grid,.request-grid,.topic-box-grid,.admin-request-grid{grid-template-columns:1fr}.material-slots{grid-template-columns:1fr}}