.exo-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:24px;margin:28px 0}.exo-card{background:var(--bg-card, #fff);border-radius:16px;padding:28px;box-shadow:0 6px 20px #0000000f;transition:all .3s;cursor:pointer;position:relative;overflow:hidden}.exo-card:hover{transform:translateY(-4px);box-shadow:0 10px 30px #0000001a}.exo-card:after{content:"";position:absolute;bottom:0;left:0;width:100%;height:4px;background:linear-gradient(90deg,var(--isep-blue-dark, #2c5aa0),var(--isep-yellow, #FFD700));transform:scaleX(0);transition:transform .3s}.exo-card:hover:after{transform:scaleX(1)}.exo-card .exo-icon{font-size:2.2rem;margin-bottom:12px}.exo-card h4{font-size:1.15rem;margin-bottom:8px;color:var(--isep-blue-dark, #2c5aa0)}.exo-card .exo-meta{display:flex;gap:8px;flex-wrap:wrap;margin:10px 0}.exo-card .exo-meta span{font-size:.78rem;padding:3px 10px;border-radius:10px;font-weight:600}.exo-card .exo-count{background:var(--isep-blue-dark, #2c5aa0);color:#fff}.exo-card .exo-time{background:var(--light-gray, #e9ecef);color:var(--gray, #6c757d)}.category-section{margin:40px 0}.category-title{font-size:1.5rem;color:var(--isep-blue-dark, #2c5aa0);margin-bottom:20px;padding-bottom:10px;border-bottom:3px solid var(--isep-yellow, #FFD700);display:flex;align-items:center;gap:10px}.stats-bar{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:16px;margin:32px 0}.stat-item{text-align:center;padding:24px;background:var(--bg-card, #fff);border-radius:14px;box-shadow:0 4px 14px #0000000f}.stat-item .stat-num{font-size:2.2rem;font-weight:800;color:var(--isep-blue-dark, #2c5aa0)}.stat-item .stat-label{color:var(--gray, #6c757d);font-size:.9rem;margin-top:4px}