*{margin:0;padding:0;box-sizing:border-box}.app{min-height:100vh;display:flex;flex-direction:column;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,Fira Sans,Droid Sans,Helvetica Neue,sans-serif;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;background-color:#f5f5f5}.header{background:linear-gradient(135deg,#3966b9,#0b2b72);color:#fff;padding:3rem 2rem;text-align:center;box-shadow:0 4px 6px #0000001a}.header h1{font-size:2.5rem;margin-bottom:.5rem;font-weight:700}.header h3{font-size:1.2rem;font-weight:400;opacity:.95}.main-content{flex:1;padding:3rem 2rem;max-width:1400px;margin:0 auto;width:100%}.section-title{font-size:2rem;font-weight:700;color:#2d3748;text-align:center;margin-bottom:2.5rem}.cards-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(320px,1fr));gap:2rem;padding:1rem 0}.card{background:#fff;border-radius:12px;overflow:hidden;box-shadow:0 2px 8px #0000001a;transition:transform .3s ease,box-shadow .3s ease;cursor:pointer;display:flex;flex-direction:column;text-decoration:none}.card:hover{transform:translateY(-8px);box-shadow:0 12px 24px #00000026}.card-image{width:100%;height:200px;overflow:hidden;background-color:#e2e8f0}.image-placeholder{width:100%;height:100%;background:linear-gradient(135deg,#0b3a91,#010f2e)}.card-content{padding:1.5rem;display:flex;flex-direction:column;gap:.75rem;flex:1}.card-categoria{font-size:.875rem;font-weight:600;color:#2b4e92;text-transform:uppercase;letter-spacing:.5px}.card-titulo{font-size:1.25rem;font-weight:700;color:#2d3748;line-height:1.4;margin:0}.card-descricao{font-size:.95rem;color:#718096;line-height:1.6;flex:1}.card-footer{display:flex;align-items:center;justify-content:space-between;padding-top:1rem;border-top:1px solid #e2e8f0;margin-top:auto}.card-autor{display:flex;align-items:center;gap:.5rem}.autor-avatar{width:32px;height:32px;border-radius:50%}.autor-nome{font-size:.875rem;color:#4a5568;font-weight:500}.card-data{font-size:.875rem;color:#a0aec0}.footer{background:linear-gradient(135deg,#3966b9,#2d3748);color:#fff;padding:2rem;margin-top:auto}.footer-bottom{max-width:1400px;margin:0 auto;text-align:center}.footer-bottom p{margin:.5rem 0;font-size:.95rem;opacity:.9}.div-filter{height:50px;display:flex;align-items:end;margin-top:-30px;flex-direction:column}.button-select{width:200px;height:30px;text-align:left;padding-left:10px;position:absolute;border-radius:5px;border:#a0aec0 2px solid;background-color:#ebebeb;margin-bottom:30px}.list-select{width:200px;height:200px;margin-top:30px;background-color:#ebebeb}.list-select li{cursor:pointer;text-align:left;padding-left:15px;list-style-type:none;color:#272727;border:#a0aec025 2px solid}@media (max-width: 768px){.header h1{font-size:2rem}.header h3{font-size:1rem}.section-title{font-size:1.5rem}.cards-grid{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1.5rem}.main-content{padding:2rem 1rem}}@media (max-width: 480px){.cards-grid{grid-template-columns:1fr}}