.filters-container{background:#fff;border-radius:24px;padding:2rem 1.75rem;box-shadow:0 25px 45px #0f172a1f;border:1px solid rgba(148,163,184,.18);transition:box-shadow .3s ease,transform .3s ease;position:relative;overflow:hidden}.filters-container:before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;background:linear-gradient(135deg,#f59e0b14,#026c3814);opacity:0;transition:opacity .3s ease;pointer-events:none}.filters-container:hover{box-shadow:0 35px 65px #0f172a29;transform:translateY(-2px)}.filters-container:hover:before{opacity:1}.filters-container .filter-group:not(:last-child){padding-bottom:1.5rem;border-bottom:1px dashed rgba(203,213,225,.6);margin-bottom:1.5rem}.filters-container .filter-title{display:inline-flex;align-items:center;gap:.5rem;padding:.5rem 1rem;border-radius:999px;background:#026c381f;font-size:1.05rem;color:var(--primary-color)}.modern-input-group{position:relative;display:flex;align-items:center;background:#f8fafc;border-radius:16px;padding:.65rem .85rem;border:1px solid rgba(148,163,184,.4);transition:border-color .25s ease,box-shadow .25s ease,background .25s ease}.modern-input-group .input-icon{color:#64748bd9;font-size:1rem;display:flex;align-items:center;margin-right:.5rem}.modern-input{border:none;outline:none;background:transparent;width:100%;font-size:.95rem;color:#0f172a}.modern-input::placeholder{color:#64748ba6}.modern-input-group:focus-within{border-color:#026c3880;background:#fff;box-shadow:0 8px 20px #026c381f}.filters-container .form-check{position:relative;display:flex;align-items:center;padding:.55rem .75rem;border-radius:12px;transition:background .25s ease,transform .25s ease}.filters-container .form-check:hover{background:#94a3b81f;transform:translate(4px)}.filters-container .form-check-input{width:18px;height:18px;margin-right:.65rem;border-radius:6px;border:2px solid rgba(34,197,94,.35);background:#fff;transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;cursor:pointer}.filters-container .form-check-input:focus{box-shadow:0 0 0 4px #10b98140;border-color:#10b981b3}.filters-container .form-check-input:checked{background:linear-gradient(135deg,#026c38,#03a66a);border-color:transparent;box-shadow:0 6px 14px #026c3859}.filters-container .form-check-label{font-weight:500;color:#1f2937;font-size:.95rem;cursor:pointer}.filters-container .form-check-input:checked+.form-check-label{color:var(--primary-color)}.filters-container .badge{border-radius:999px;font-size:.75rem;font-weight:600;padding:.25rem .65rem;background:#026c381f;color:var(--primary-color)}.modern-input-helper{display:block;margin-top:.5rem;color:#64748bcc;font-size:.8rem}.filter-subtitle{display:flex;align-items:center;gap:.5rem;margin-bottom:1rem;color:#0f172a}.filter-subtitle i{font-size:1rem;color:#026c38d9}.filters-sticky{position:sticky;top:90px}.filter-title{font-size:1.2rem;font-weight:700;color:var(--primary-color);margin-bottom:1rem}.filter-group{margin-bottom:1.5rem}.filter-group h5{font-size:1rem;font-weight:600;color:var(--text-color);margin-bottom:.75rem}#loadingCourses{min-height:300px;display:flex;flex-direction:column;align-items:center;justify-content:center}.spinner-border{width:3rem;height:3rem;color:var(--primary-color)}#noResults .alert{border:none;background:linear-gradient(135deg,#0144210d,#026c380d);border-radius:var(--radius);box-shadow:var(--shadow-sm)}#noResults .alert h5{color:var(--primary-color);font-weight:700}@keyframes fadeInUp{0%{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}.course-card{animation:fadeInUp .6s ease-out}.skeleton-card{pointer-events:none}.skeleton-card .course-card{background:#f8f9fa;border:1px solid #e9ecef}.skeleton{background:linear-gradient(90deg,#f0f0f0 25%,#e0e0e0,#f0f0f0 75%);background-size:200% 100%;animation:skeleton-loading 1.5s infinite;border-radius:4px}.skeleton-title{height:24px;width:80%;margin-bottom:12px}.skeleton-badge{height:20px;width:60px;margin-bottom:12px}.skeleton-badge-small{height:18px;width:70px;margin-right:8px;margin-bottom:8px}.skeleton-text{height:16px;width:90%;margin-bottom:8px}.skeleton-text-small{height:14px;width:70%;margin-bottom:8px}.skeleton-price{height:20px;width:50%;margin-bottom:8px}.skeleton-button{height:40px;width:100%;margin-top:auto}@keyframes skeleton-loading{0%{background-position:200% 0}to{background-position:-200% 0}}@media (min-width: 1200px){.course-card{min-height:380px}.filters-sticky{top:20px}}@media (max-width: 1199px) and (min-width: 992px){.course-card{min-height:360px}.filters-sticky{top:20px}}@media (max-width: 991px) and (min-width: 769px){.course-card{min-height:340px}.filters-sticky{position:static;top:auto}.filter-title{font-size:1.1rem}.filter-group h5{font-size:.95rem}}@media (max-width: 768px){.filters{margin-bottom:1.5rem}.filters-sticky{position:static;top:auto}.filters-container{padding:1rem;margin-bottom:1rem;border-radius:8px}.filter-title{font-size:1.1rem;margin-bottom:.75rem}.filter-group{margin-bottom:1.25rem}.filter-group h5{font-size:.95rem;margin-bottom:.5rem}.filter-group input[type=text]{font-size:.9rem;padding:.6rem}.modern-filter-btn{width:100%;padding:.75rem 1rem;font-size:.9rem;margin-bottom:1rem}.modern-search-btn{width:100%;padding:.75rem 1rem;font-size:.9rem}.course-card{min-height:300px;margin-bottom:1rem}.course-card .card-body{padding:1.25rem}.course-card .card-title{font-size:1rem;line-height:1.3}.course-card .price{font-size:1.2rem;padding:.6rem}.course-card .btn{padding:.75rem 1rem;font-size:.8rem}.courses-section{padding:2rem 1rem}.courses-section h4{font-size:1.5rem}.courses-section p{font-size:.9rem}}@media (max-width: 576px){.filters-container{padding:.75rem}.filter-title{font-size:1rem}.filter-group h5{font-size:.9rem}.filter-group input[type=text]{font-size:.85rem;padding:.5rem}.modern-filter-btn,.modern-search-btn{font-size:.85rem;padding:.65rem .85rem}.course-card{min-height:260px}.course-card .card-body{padding:1rem}.course-card .card-title{font-size:.95rem}.course-card .price{font-size:1.1rem;padding:.5rem}.course-card .btn{padding:.65rem .85rem;font-size:.75rem}.course-card .small,.course-card .text-muted{font-size:.8rem}.courses-section{padding:1.5rem .75rem}.courses-section h4{font-size:1.3rem}.courses-section p{font-size:.85rem}}@media (max-width: 480px){.filters-container{padding:.5rem}.filter-title{font-size:.95rem}.filter-group h5{font-size:.85rem}.filter-group label{font-size:.8rem;padding:.3rem}.filter-group input[type=text]{font-size:.8rem;padding:.45rem}.modern-filter-btn,.modern-search-btn{font-size:.8rem;padding:.6rem .75rem}.course-card{min-height:240px}.course-card .card-body{padding:.875rem}.course-card .card-title{font-size:.9rem}.course-card .price{font-size:1rem;padding:.4rem}.course-card .btn{padding:.6rem .75rem;font-size:.7rem}.courses-section h4{font-size:1.2rem}.courses-section p{font-size:.8rem}}.btn[data-bs-toggle=collapse]{background:var(--primary-gradient);border:none;color:#fff;font-weight:500;padding:.75rem 1rem;border-radius:.5rem;transition:all .3s ease}.btn-link-clear{color:var(--primary-color)}.btn-link-clear:hover{color:var(--secondary-color)}.btn[data-bs-toggle=collapse]:hover{background:linear-gradient(135deg,#026c38,#03a66a);transform:translateY(-1px);box-shadow:0 4px 8px #01442133}.btn[data-bs-toggle=collapse]:focus{box-shadow:0 0 0 .25rem #01442140}#coursesCount{background:var(--primary-gradient)!important;font-size:.875rem;padding:.5rem 1rem}@media (max-width: 575.98px){.course-card{margin-bottom:1rem}.courses-section h4{font-size:1.5rem}.courses-section p{font-size:.9rem}}.collapse{transition:all .3s ease}.collapse.show{animation:slideDown .3s ease-out}@keyframes slideDown{0%{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}#toggleAdvancedFilters{background:transparent;border:2px solid var(--primary-color);color:var(--primary-color);font-size:.875rem;padding:.5rem 1rem;border-radius:.5rem;transition:all .3s ease;font-weight:500}#toggleAdvancedFilters:hover{background:var(--primary-gradient);border-color:var(--primary-color);color:#fff;transform:translateY(-1px);box-shadow:0 4px 8px #01442133}#toggleAdvancedFilters:focus{box-shadow:0 0 0 .25rem #01442140}.advanced-filters{transition:all .3s ease}.advanced-filters[style*="display: block"]{animation:slideDown .3s ease-out}.advanced-filters .filter-group:first-child{margin-top:1rem;padding-top:1rem;border-top:1px solid #e9ecef}@media (max-width: 767.98px){.filters{margin-bottom:1rem}.filters-container{background:#fff;border:1px solid #dee2e6;border-radius:.5rem;padding:1rem;box-shadow:0 2px 4px #0000001a}.filter-title{font-size:1.25rem;margin-bottom:1rem;color:var(--primary-color)}.filter-group{margin-bottom:1.5rem}.filter-group h5{font-size:1rem;margin-bottom:.5rem;color:#495057}#toggleAdvancedFilters{width:100%;margin-top:1rem}}