:root{--primary-color:#ce3131;--primary-hover:#a62828;--secondary-color:#333;--light-bg:#f8f9fa;--white:#ffffff;--dark-text:#333;--medium-text:#555;--light-text:#777;--border-radius-sm:8px;--border-radius-md:15px;--border-radius-lg:25px;--box-shadow-sm:0 2px 10px rgba(0, 0, 0, 0.05);--box-shadow-md:0 4px 15px rgba(0, 0, 0, 0.08);--box-shadow-lg:0 8px 30px rgba(0, 0, 0, 0.12);--transition-fast:0.2s ease;--transition-normal:0.3s ease}html{scroll-behavior:smooth}body{font-family:Tajawal,sans-serif;background-color:var(--light-bg);font-size:1rem;color:var(--dark-text);line-height:1.6}::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:#f1f1f1}::-webkit-scrollbar-thumb{background:#d3d3d3;border-radius:5px}::-webkit-scrollbar-thumb:hover{background:var(--primary-color)}b,h1,h2,h3,h4,h5,h6{font-family:Tajawal,sans-serif;font-weight:700}.pdf-logo{font-family:Tajawal,sans-serif;color:var(--primary-color);font-weight:800}::selection{background-color:rgba(206,49,49,.2);color:var(--primary-color)}.navbar{background-color:var(--white);box-shadow:var(--box-shadow-sm);padding:15px 0;position:sticky;top:0;z-index:1000;transition:all var(--transition-normal)}.navbar.scrolled{padding:10px 0;box-shadow:var(--box-shadow-md)}.navbar-brand{font-size:1.5rem;font-weight:800;transition:transform var(--transition-fast)}.navbar-brand:hover{transform:scale(1.05)}.navbar-nav .nav-link{color:var(--secondary-color);font-weight:500;padding:8px 15px;border-radius:var(--border-radius-sm);transition:all var(--transition-fast)}.navbar-nav .nav-link:hover{background-color:rgba(206,49,49,.1);color:var(--primary-color)}.dropdown-menu{border:none;box-shadow:var(--box-shadow-md);border-radius:var(--border-radius-sm)}.dropdown-item{padding:10px 20px;transition:all var(--transition-fast)}.dropdown-item:hover{background-color:rgba(206,49,49,.1);color:var(--primary-color)}.breadcrumb{background-color:var(--white);padding:12px 20px;border-radius:var(--border-radius-md);display:flex;justify-content:right;font-size:.95rem;margin:20px 0;box-shadow:var(--box-shadow-sm);border-right:3px solid var(--primary-color);transition:all var(--transition-fast)}.breadcrumb:hover{box-shadow:var(--box-shadow-md);transform:translateY(-2px)}.breadcrumb-item+.breadcrumb-item::before{content:"›";color:var(--primary-color);font-size:1.2rem;font-weight:700;padding:0 8px;line-height:1}.breadcrumb-item a{color:var(--primary-color);text-decoration:none;font-weight:500;transition:all var(--transition-fast);display:inline-flex;align-items:center}.breadcrumb-item a i{margin-left:5px;font-size:.85rem}.breadcrumb-item a:hover{color:var(--primary-hover);transform:translateX(-3px)}.breadcrumb-item.active{color:var(--medium-text);font-weight:600}.article-header{margin-top:30px;text-align:center}.article-title{font-size:2rem;font-weight:700;color:var(--dark-text)}.article-meta{color:var(--light-text);font-size:.9rem;margin-top:10px}.article-content-wrapper{background-color:var(--white);border-radius:var(--border-radius-md);padding:30px;box-shadow:var(--box-shadow-sm);margin-bottom:30px;transition:transform var(--transition-normal),box-shadow var(--transition-normal)}.article-content-wrapper:hover{box-shadow:var(--box-shadow-md)}.article-content{margin-top:20px;font-size:1.1rem;line-height:1.8;color:var(--dark-text)}.article-content p{margin-bottom:15px}.article-content img{max-width:100%;height:auto;margin:20px 0;border-radius:var(--border-radius-md)}.keywords-container{padding:15px;border-radius:var(--border-radius-md);margin-top:20px;background-color:#f8f9fa;box-shadow:var(--box-shadow-sm);border-top:1px solid rgba(0,0,0,.05)}.keyword-tag{display:inline-block;background-color:var(--white);color:var(--primary-color);padding:5px 12px;margin:5px;border-radius:var(--border-radius-sm);font-size:.9rem;transition:all var(--transition-fast);border:1px solid rgba(206,49,49,.2)}.keyword-tag:hover{background-color:rgba(206,49,49,.1);transform:translateY(-2px);box-shadow:var(--box-shadow-sm)}.sidebar-section{margin-bottom:30px}.sidebar-section .card{transition:transform var(--transition-normal),box-shadow var(--transition-normal);border-radius:var(--border-radius-md);overflow:hidden;box-shadow:var(--box-shadow-sm)}.sidebar-section .card:hover{transform:translateY(-5px);box-shadow:var(--box-shadow-md);border-color:rgba(206,49,49,.2)}.sidebar-section .card-header{border-bottom:2px solid rgba(206,49,49,.1);position:relative;background:linear-gradient(135deg,#f5f7fa 0,#e4e8eb 100%);padding:15px}.sidebar-section .card-header h3{font-size:1.3rem;margin-bottom:0;position:relative;z-index:1}.sidebar-section .card-header i{font-size:1.1rem}.sidebar-section .card-body{padding:15px}.sidebar-section .list-group-flush{margin:-5px -15px}.sidebar-section .list-group-item{border:none;border-radius:var(--border-radius-sm);margin-bottom:.5rem;padding:.75rem 1rem;transition:all var(--transition-fast);background-color:#f8f9fa}.sidebar-section .list-group-item:hover{background-color:rgba(206,49,49,.1);color:var(--primary-color);transform:translateX(-5px)}.sidebar-section .list-group-item i{transition:transform var(--transition-fast)}.sidebar-section .list-group-item:hover i{transform:translateX(-3px)}.prev-next-posts{margin-top:30px;display:flex;justify-content:space-between;background-color:var(--white);border-radius:var(--border-radius-md);padding:20px;box-shadow:var(--box-shadow-sm)}.prev-next-posts a{background-color:var(--primary-color);color:var(--white);padding:10px 20px;border-radius:var(--border-radius-lg);text-decoration:none;transition:all var(--transition-normal);font-size:1rem;font-weight:600;box-shadow:0 4px 10px rgba(206,49,49,.2);display:inline-flex;align-items:center;max-width:250px;white-space:normal;overflow:visible;text-overflow:clip;line-height:1.4}.prev-next-posts a:hover{background-color:var(--primary-hover);transform:translateY(-3px);box-shadow:0 6px 15px rgba(206,49,49,.3)}.prev-next-posts .next-post,.prev-next-posts .previous-post{max-width:48%}.prev-next-posts .next-post a,.prev-next-posts .previous-post a{width:100%}.prev-next-posts .next-post i{margin-left:8px}.prev-next-posts .previous-post i{margin-right:8px}.social-share{margin-top:1.5rem;display:flex;align-items:center;padding:15px 0;border-top:1px solid rgba(0,0,0,.05)}.social-share span{margin-right:15px;font-weight:600;color:var(--medium-text)}.social-share a{display:inline-flex;align-items:center;justify-content:center;width:35px;height:35px;margin:0 5px;color:var(--white);background-color:var(--medium-text);border-radius:50%;transition:all var(--transition-fast);text-decoration:none}.social-share a:hover{transform:translateY(-3px);box-shadow:var(--box-shadow-sm)}.social-share a.facebook{background-color:#3b5998}.social-share a.twitter{background-color:#000}.social-share a.linkedin{background-color:#0077b5}.social-share a.email{background-color:#a1a1a1}.footer{background-color:var(--white);padding:1.5rem 0;margin-top:3rem;box-shadow:0 -2px 10px rgba(0,0,0,.05)}.footer-content{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;padding:.5rem 0}.security-badge{display:flex;align-items:center}.security-text{display:flex;align-items:center;color:#28a745;font-weight:600;font-size:1rem}.security-text i{margin-right:8px;font-size:1.2rem}.security-images{display:flex;align-items:center;gap:10px}.security-images img{max-height:35px;transition:transform var(--transition-fast)}.security-images img:hover{transform:scale(1.05)}.copyright-text{text-align:center;padding-top:1rem;margin-top:.5rem;font-size:.9rem;border-top:1px solid rgba(0,0,0,.05)}.back-to-top{position:fixed;bottom:20px;right:20px;background-color:var(--primary-color);color:#fff;width:40px;height:40px;border-radius:50%;display:flex;justify-content:center;align-items:center;cursor:pointer;opacity:0;visibility:hidden;transition:all .3s ease;z-index:999;box-shadow:0 2px 10px rgba(0,0,0,.2);text-decoration:none}.back-to-top.show{opacity:1;visibility:visible}.back-to-top:hover{background-color:var(--primary-hover);transform:translateY(-3px)}.navbar .nav-item .nav-link{text-decoration:none}@media (max-width:991px){.article-title{font-size:1.8rem}}@media (max-width:767px){.navbar-brand{font-size:1.3rem}.article-title{font-size:1.5rem}.breadcrumb{justify-content:center}.prev-next-posts{flex-direction:column;align-items:stretch;gap:15px}.prev-next-posts .next-post,.prev-next-posts .previous-post{max-width:100%;width:100%}.prev-next-posts a{margin-bottom:10px;width:100%;max-width:100%;justify-content:center;white-space:normal;height:auto;min-height:50px}.security-badge{flex-direction:column;align-items:center;text-align:center}.security-images{margin-top:1rem}.footer-content{flex-direction:column;text-align:center}}