.certificates-intro{padding:3rem 0;background-color:#fff}.intro-content{text-align:center;max-width:800px;margin:0 auto}.intro-content h2{font-size:2rem;margin-bottom:1.5rem;color:var(--text-color)}.intro-content p{font-size:1.125rem;color:var(--text-light);margin-bottom:2rem;line-height:1.6}.intro-features{display:grid;grid-template-columns:repeat(4,1fr);gap:2rem;margin-top:2rem}.feature{display:flex;flex-direction:column;align-items:center;text-align:center;padding:1.5rem;background-color:var(--gray-light);border-radius:var(--border-radius);transition:var(--transition)}.feature:hover{transform:translateY(-5px);box-shadow:var(--box-shadow)}.feature i{font-size:2rem;color:var(--primary-color);margin-bottom:1rem}.feature span{font-weight:500;color:var(--text-color)}.certificates-gallery{padding:4rem 0}.certificates-filter{display:flex;justify-content:center;margin-bottom:3rem;flex-wrap:wrap;gap:1rem}.filter-btn{padding:.75rem 1.5rem;background-color:#fff;color:var(--text-color);border:1px solid var(--gray);border-radius:var(--border-radius);cursor:pointer;transition:var(--transition);font-weight:500}.filter-btn:hover{background-color:var(--primary-very-light);border-color:var(--primary-color)}.filter-btn.active{background-color:var(--primary-color);color:#fff;border-color:var(--primary-color)}.certificates-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.certificate-item{background-color:#fff;border-radius:var(--border-radius);overflow:hidden;box-shadow:var(--box-shadow);transition:var(--transition);opacity:1;transform:scale(1)}.certificate-item:hover{transform:translateY(-5px);box-shadow:0 8px 25px #00000026}.certificate-item.hidden{opacity:0;transform:scale(.8);pointer-events:none}.certificate-image{position:relative;height:300px;overflow:hidden;cursor:pointer}.certificate-image img{width:100%;height:100%;object-fit:cover;transition:var(--transition)}.certificate-overlay{position:absolute;top:0;left:0;width:100%;height:100%;background-color:#3b82f6e6;color:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;transition:var(--transition)}.certificate-image:hover .certificate-overlay{opacity:1}.certificate-image:hover img{transform:scale(1.1)}.certificate-overlay i{font-size:2rem;margin-bottom:.5rem}.certificate-overlay span{font-weight:500;font-size:1.125rem}.certificate-info{padding:1.5rem}.certificate-info h3{font-size:1.25rem;margin-bottom:.75rem;color:var(--text-color)}.certificate-info p{color:var(--text-light);margin-bottom:1rem;line-height:1.5;font-size:.875rem}.certificate-meta{display:flex;flex-direction:column;gap:.5rem}.certificate-number{font-weight:500;color:var(--primary-color);font-size:.875rem}.certificate-date{color:var(--text-light);font-size:.875rem}.certificate-modal-content{position:relative;display:flex;flex-direction:column;max-height:90vh}.certificate-modal-content img{max-width:100%;max-height:60vh;object-fit:contain;margin:0 auto 1.5rem;border-radius:var(--border-radius)}.certificate-modal-nav{position:absolute;top:50%;left:0;right:0;display:flex;justify-content:space-between;transform:translateY(-50%);padding:0 1rem;pointer-events:none}.certificate-prev,.certificate-next{width:50px;height:50px;background-color:#ffffffe6;color:var(--text-color);border-radius:50%;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;transition:var(--transition);pointer-events:all;font-size:1.25rem}.certificate-prev:hover,.certificate-next:hover{background-color:var(--primary-color);color:#fff}.certificate-modal-info{text-align:center}.certificate-modal-info h3{font-size:1.5rem;margin-bottom:1rem;color:var(--text-color)}.certificate-modal-info p{color:var(--text-light);margin-bottom:1.5rem;line-height:1.6}.modal-certificate-meta{display:flex;justify-content:center;gap:2rem;flex-wrap:wrap}.modal-certificate-meta span{padding:.5rem 1rem;background-color:var(--gray-light);border-radius:var(--border-radius);font-size:.875rem}#modal-certificate-number{color:var(--primary-color);font-weight:500}#modal-certificate-date{color:var(--text-light)}.certificates-info{padding:4rem 0;background-color:var(--primary-very-light)}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:2rem}.info-item{text-align:center;padding:2rem;background-color:#fff;border-radius:var(--border-radius);box-shadow:var(--box-shadow);transition:var(--transition)}.info-item:hover{transform:translateY(-5px)}.info-icon{width:80px;height:80px;border-radius:50%;background-color:var(--primary-very-light);color:var(--primary-color);display:flex;align-items:center;justify-content:center;margin:0 auto 1.5rem;font-size:2rem}.info-item h3{font-size:1.25rem;margin-bottom:1rem;color:var(--text-color)}.info-item p{color:var(--text-light);line-height:1.6}@media (max-width: 1024px){.intro-features,.certificates-grid,.info-grid{grid-template-columns:repeat(2,1fr)}}@media (max-width: 768px){.intro-features{grid-template-columns:1fr}.certificates-filter{justify-content:flex-start;overflow-x:auto;padding-bottom:.5rem}.filter-btn{white-space:nowrap;flex-shrink:0}.certificates-grid,.info-grid{grid-template-columns:1fr}.certificate-image{height:250px}.modal-certificate-meta{flex-direction:column;align-items:center;gap:1rem}}@media (max-width: 576px){.certificates-intro{padding:2rem 0}.intro-content h2{font-size:1.75rem}.intro-content p{font-size:1rem}.feature{padding:1rem}.feature i{font-size:1.5rem}.certificate-image{height:200px}.certificate-info{padding:1rem}.certificate-prev,.certificate-next{width:40px;height:40px;font-size:1rem}}