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.stat-value{color:#4ade80}.stat-card.rejected .stat-value{color:#ef4444}.stat-label{color:#ffffffb3;font-size:.85rem}.filters{display:flex;gap:.5rem;margin-bottom:1.5rem;flex-wrap:wrap;overflow-x:auto;padding-bottom:.5rem}.filter-btn{padding:.75rem 1.25rem;border:1px solid rgba(255,255,255,.1);background:#ffffff0d;color:#ffffffb3;border-radius:10px;cursor:pointer;font-weight:500;transition:all .2s ease;white-space:nowrap}.filter-btn:hover{background:#ffffff1a;color:#fff}.filter-btn.active{background:#4ade8033;border-color:#4ade8066;color:#4ade80}.requests-table{background:#ffffff08;border-radius:16px;border:1px solid rgba(255,255,255,.1);overflow-x:auto}.requests-table table{width:100%;border-collapse:collapse}.requests-table thead{background:#ffffff0d}.requests-table th{padding:1rem;text-align:left;font-weight:600;color:#ffffffe6;border-bottom:1px solid rgba(255,255,255,.1);white-space:nowrap}.requests-table td{padding:1rem;border-bottom:1px solid rgba(255,255,255,.05);color:#ffffffd9}.requests-table tbody tr{transition:background .2s ease}.requests-table tbody tr:hover{background:#ffffff08}.requests-table tbody tr:last-child td{border-bottom:none}.status-badge{padding:.35rem .75rem;border-radius:20px;font-size:.8rem;font-weight:600;display:inline-block}.action-buttons{display:flex;gap:.5rem;flex-wrap:wrap}.btn-approve{background:linear-gradient(135deg,#3b82f6,#2563eb);color:#fff;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-weight:600;font-size:.85rem;transition:all .2s ease}.btn-approve:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 15px #3b82f666}.btn-reject{background:#ef444433;border:1px solid rgba(239,68,68,.4);color:#ef4444;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-weight:600;font-size:.85rem;transition:all .2s ease}.btn-reject:hover:not(:disabled){background:#ef44444d}.btn-send{background:linear-gradient(135deg,#4ade80,#22c55e);color:#1a1a2e;border:none;padding:.5rem 1rem;border-radius:8px;cursor:pointer;font-weight:600;font-size:.85rem;transition:all .2s ease}.btn-send:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 4px 15px #4ade8066}.btn:disabled,.btn-approve:disabled,.btn-reject:disabled,.btn-send:disabled{opacity:.6;cursor:not-allowed}.no-requests{background:#ffffff08;border-radius:16px;border:1px solid rgba(255,255,255,.1);padding:3rem;text-align:center;color:#ffffff80}.modal-overlay{position:fixed;top:0;left:0;right:0;bottom:0;background:#000c;display:flex;align-items:center;justify-content:center;z-index:1000;padding:1rem}.modal-content{background:linear-gradient(145deg,#1a1a2e,#16213e);border-radius:16px;padding:2rem;max-width:500px;width:100%;border:1px solid rgba(255,255,255,.1);color:#fff}.modal-content h3{margin-top:0;margin-bottom:1rem;color:#fff}.modal-content p{color:#fffc;margin-bottom:1rem}.modal-content textarea{width:100%;background:#0000004d;border:1px solid rgba(255,255,255,.2);border-radius:10px;padding:1rem;color:#fff;font-size:1rem;resize:vertical;margin-bottom:1.5rem;font-family:inherit}.modal-content textarea:focus{outline:none;border-color:#ef444480}.modal-actions{display:flex;gap:1rem;justify-content:flex-end}.modal-actions .btn-secondary{background:#ffffff1a;border:1px solid rgba(255,255,255,.2);color:#fff;padding:.75rem 1.25rem;border-radius:10px;cursor:pointer;transition:all .2s ease}.modal-actions .btn-secondary:hover{background:#ffffff26}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:50vh;color:#ffffffb3}.spinner{width:50px;height:50px;border:4px solid rgba(74,222,128,.2);border-top-color:#4ade80;border-radius:50%;animation:spin 1s linear infinite;margin-bottom:1rem}.error-message{background:#ef44441a;border:1px solid rgba(239,68,68,.3);border-radius:10px;padding:1rem 1.5rem;margin-bottom:1.5rem;color:#ef4444}@media (max-width: 1024px){.certificates-stats{grid-template-columns:repeat(3,1fr)}}@media (max-width: 768px){.admin-certificates-page{padding:1rem}.admin-header{flex-direction:column;align-items:flex-start}.admin-header h1{font-size:1.5rem;order:-1;width:100%}.certificates-stats{grid-template-columns:repeat(2,1fr)}.requests-table{overflow-x:scroll}.requests-table table{min-width:700px}.filters{overflow-x:auto;flex-wrap:nowrap}}@media (max-width: 480px){.certificates-stats{grid-template-columns:1fr 1fr}.stat-value{font-size:1.5rem}.filter-btn{padding:.5rem .75rem;font-size:.85rem}}.admin-stats-page{padding-top:80px;min-height:100vh;background-color:var(--background-dark);color:var(--text-primary)}.stats-container{max-width:1200px;margin:0 auto;padding:2rem}.stats-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:2rem}.stats-header h1{font-size:2rem;font-weight:700;background:linear-gradient(135deg,var(--primary) 0%,var(--primary-light) 100%);background-clip:text;-webkit-background-clip:text;-webkit-text-fill-color:transparent;margin:0}.stats-actions{display:flex;gap:1rem}.btn-refresh{display:flex;align-items:center;gap:.5rem;background-color:var(--surface-light);color:var(--text-primary);border:1px solid var(--border-color);padding:.5rem 1rem;border-radius:8px;cursor:pointer;transition:all .2s}.btn-refresh:hover{background-color:var(--primary-dark);border-color:var(--primary)}.btn-refresh:disabled{opacity:.7;cursor:not-allowed}.stats-overview{display:grid;grid-template-columns:repeat(auto-fit,minmax(250px,1fr));gap:1.5rem;margin-bottom:3rem}.stat-card{background-color:var(--surface-card);padding:1.5rem;border-radius:12px;border:1px solid var(--border-color);display:flex;flex-direction:column;gap:.5rem;transition:transform .2s}.stat-card:hover{transform:translateY(-5px);box-shadow:0 10px 20px #0003}.stat-title{color:var(--text-secondary);font-size:.9rem;text-transform:uppercase;letter-spacing:.5px}.stat-value{font-size:2.5rem;font-weight:700;color:var(--text-primary)}.stats-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(300px,1fr));gap:1.5rem}.course-stat-card{background-color:var(--surface-card);border-radius:12px;border:1px solid var(--border-color);overflow:hidden;display:flex;flex-direction:column}.course-stat-header{padding:1rem;background-color:#ffffff08;border-bottom:1px solid var(--border-color);display:flex;align-items:center;gap:.8rem}.course-icon{font-size:1.5rem;width:40px;height:40px;display:flex;align-items:center;justify-content:center;background-color:var(--surface-light);border-radius:8px}.course-info h3{margin:0;font-size:1.1rem;color:var(--text-primary)}.course-category{font-size:.8rem;color:var(--text-secondary)}.course-stat-body{padding:1.5rem;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}.student-count{font-size:3rem;font-weight:800;color:var(--primary);line-height:1;margin-bottom:.5rem}.student-label{color:var(--text-secondary);font-size:.9rem}.loading-container{display:flex;flex-direction:column;align-items:center;justify-content:center;min-height:400px;gap:1rem}.spinner{width:40px;height:40px;border:4px solid var(--surface-light);border-top-color:var(--primary);border-radius:50%;animation:spin 1s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}@media (max-width: 768px){.stats-header{flex-direction:column;align-items:flex-start;gap:1rem}.stats-actions{width:100%;overflow-x:auto}}.App{min-height:100vh;background:#0d2818;overflow-x:hidden;width:100%}:root{font-family:Inter,system-ui,Avenir,Helvetica,Arial,sans-serif;line-height:1.5;font-weight:400;color-scheme:dark;color:#ffffffde;background-color:#0d2818;font-synthesis:none;text-rendering:optimizeLegibility;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}*{box-sizing:border-box}html{overflow-x:hidden;scrollbar-width:none;-ms-overflow-style:none}html::-webkit-scrollbar{display:none}#root{overflow-x:hidden}body{margin:0;min-width:320px;min-height:100vh;background:#0d2818;overflow-x:hidden;scrollbar-width:none;-ms-overflow-style:none}body::-webkit-scrollbar{display:none}#root{min-height:100vh}#vue-app{display:none}