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768px){.grid.cols-3,.grid.cols-2{grid-template-columns:1fr}}.student-card{display:flex;align-items:center;gap:14px;padding:14px;border-radius:var(--radius);background:var(--card);box-shadow:var(--shadow);cursor:pointer;transition:transform .15s}.student-card:hover{transform:translateY(-2px)}.avatar{width:48px;height:48px;border-radius:50%;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:18px}.student-card .meta{flex:1}.student-card .name{font-weight:600}.student-card .sub{color:var(--muted);font-size:13px}.badge{display:inline-block;padding:2px 10px;border-radius:20px;font-size:12px;background:var(--primary-light);color:var(--primary)}.badge.warn{background:#fdeee2;color:var(--warn)}.badge.danger{background:#fbe9e9;color:var(--danger)}.suggestion{border-left:3px solid var(--primary);padding:8px 12px;margin:8px 0;background:var(--primary-light);border-radius:0 8px 8px 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8px;border-radius:10px;background:#ffffff26;opacity:.8}.logout-btn{background:#ffffff26;border:1px solid rgba(255,255,255,.2);color:#fff;padding:4px 12px;border-radius:6px;font-size:13px;cursor:pointer;transition:background .2s}.logout-btn:hover{background:#ffffff40}@media (max-width: 768px){.topbar{flex-wrap:wrap;gap:8px;padding:12px 16px}.topbar h1{font-size:18px}.user-name{display:none}}.btn.primary{background:var(--accent)}.btn.outline{background:transparent;border:1px solid var(--primary);color:var(--primary)}.btn:disabled{opacity:.5;cursor:not-allowed}@media (max-width: 768px){.chart{height:260px}}@media print{.topbar,.no-print,.btn{display:none!important}body{background:#fff}.card{box-shadow:none;border:1px solid #eee;break-inside:avoid}.container{max-width:100%;margin:0;padding:0}}