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1rem}}.student-card-thumb{position:relative}.bookmark-btn{position:absolute;top:8px;right:8px;width:36px;height:36px;border-radius:50%;border:none;background:rgba(0,0,0,.4);color:#fff;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:transform .15s ease,background .15s ease;z-index:2}.bookmark-btn:hover{transform:scale(1.1);background:rgba(0,0,0,.6)}.bookmark-btn.bookmarked{background:var(--orange);color:#fff}.bookmark-btn.bookmarked:hover{background:var(--orange-dark)}.my-courses-tabs{display:flex;gap:0;border-bottom:2px solid var(--border);margin-bottom:1.5rem}.my-courses-tab{padding:.75rem 1.5rem;background:none;font-size:var(--text-md);font-weight:600;color:var(--text-muted);cursor:pointer;border:none;border-bottom:2px solid transparent;margin-bottom:-2px;transition:color .2s,border-color 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1.5rem}.sc-detail-loading{display:flex;justify-content:center;align-items:center;height:40vh;color:var(--text-muted);font-size:var(--text-md)}.sc-detail-notfound{text-align:center;padding:4rem 2rem;color:var(--text-muted)}.sc-detail-notfound-icon{font-size:3rem;margin-bottom:1rem}.sc-detail-notfound h2{color:var(--text-dark);font-size:var(--text-xl);margin-bottom:.5rem}.sc-detail-notfound p{font-size:var(--text-md);margin-bottom:1.5rem}.sc-detail-back{background:none;border:none;color:var(--text-muted);font-size:var(--text-md);cursor:pointer;padding:0;margin-bottom:1.25rem;display:inline-block}.sc-detail-back:hover{color:var(--orange)}.sc-detail-layout{display:grid;grid-template-columns:1fr 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