:root{--primary-blue:#0d47a1;--accent-red:#c62828;--secondary-green:#28a745;--text-dark:#2c3e50;--text-light:#7f8c8d;--bg-light:#f7f9fb;--card-bg:#ffffff;--shadow-base:0 4px 10px rgba(0, 0, 0, 0.08)}.main-wrapper{margin:0 auto;padding:20px 15px}.page-header{margin-top:100px}.breadcrumb{font-size:14px;color:var(--text-light);margin-bottom:10px}.breadcrumb a{color:var(--primary-blue);text-decoration:none}.breadcrumb span{font-weight:500;color:var(--text-dark)}.course-main-title{font-size:32px;font-weight:900;color:var(--text-dark)}.course-details-layout{display:grid;grid-template-columns:2fr 1fr;gap:30px}.info-section{background-color:var(--card-bg);padding:30px;border-radius:8px;box-shadow:var(--shadow-base);margin-bottom:25px}.info-section h2{font-size:24px;font-weight:700;color:var(--primary-blue);margin-bottom:20px;border-bottom:2px solid #eee;padding-bottom:10px}.included-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}.included-item{font-size:15px;color:var(--text-dark);font-weight:500}.included-item i{color:var(--accent-red);margin-right:8px}.course-description p{line-height:1.7;margin-bottom:15px;color:var(--text-dark)}.course-description h3{font-size:18px;color:var(--primary-blue);margin-top:20px;margin-bottom:10px}.course-description ul{list-style:none;padding-left:0}.course-description ul li{margin-bottom:8px;color:var(--text-dark);line-height:1.5}.course-description ul li i{color:var(--secondary-green);margin-right:8px}.highlight-text{font-weight:700;color:var(--accent-red);border-left:4px solid var(--accent-red);padding-left:10px;margin-top:20px}.curriculum-item,.faq-item{border:1px solid #ddd;border-radius:6px;margin-bottom:10px;overflow:hidden;transition:all 0.3s ease}.curriculum-item.active,.faq-item.active{box-shadow:0 0 10px rgb(13 71 161 / .1);border-color:var(--primary-blue)}.item-header{display:flex;justify-content:space-between;align-items:center;padding:15px 20px;background-color:#f7f7f7;cursor:pointer;font-weight:600;color:var(--text-dark)}.item-header:hover{background-color:#eee}.meta-tags span{font-size:13px;color:var(--text-light);margin-left:10px}.meta-tags i{color:var(--primary-blue);margin-right:4px}.toggle-icon{transition:transform 0.3s;color:var(--primary-blue)}.curriculum-item.active .toggle-icon,.faq-item.active .toggle-icon{transform:rotate(180deg)}.item-content{display:none;padding:15px 20px;background-color:var(--card-bg);border-top:1px solid #ddd}.lesson-list{list-style:disc;margin-left:20px;font-size:14px;color:var(--text-light)}.teachers-grid{display:flex;flex-wrap:wrap;gap:20px;justify-content:flex-start}.teacher-card{width:150px;text-align:center;background-color:var(--card-bg);padding:10px;border-radius:8px;box-shadow:var(--shadow-base);border:1px solid #eee;transition:transform 0.2s}.teacher-card:hover{transform:translateY(-3px);box-shadow:0 8px 15px rgb(0 0 0 / .1)}.teacher-card img{width:100%;height:auto;border-radius:6px;margin-bottom:10px;display:block}.teacher-name{font-weight:700;font-size:15px;color:var(--primary-blue)}.teacher-subject{font-size:13px;color:var(--text-light)}.details-sidebar-column{position:sticky;top:90px;height:fit-content}.course-card-fixed{background-color:var(--card-bg);border-radius:12px;overflow:hidden;box-shadow:0 0 20px rgb(0 0 0 / .2);border-top:5px solid var(--accent-red)}.card-image-content img{width:100%;height:auto;display:block}.card-details-box{padding:20px}.sidebar-course-title{font-size:20px;font-weight:700;color:var(--text-dark);margin-bottom:10px}.price-box{margin-bottom:15px;border-bottom:1px dashed #eee;padding-bottom:15px}.offer-price{font-size:28px;font-weight:900;color:var(--accent-red);margin-right:10px}.original-price{font-size:16px;color:var(--text-light);text-decoration:line-through}.feature-list{list-style:none;padding-left:0;margin-bottom:25px}.feature-list li{font-size:14px;margin-bottom:8px;color:var(--text-dark);display:flex;align-items:center}.feature-list i{color:var(--primary-blue);margin-right:8px}.buy-now-sidebar-btn{display:block;width:100%;text-align:center;padding:10px;background-color:var(--primary-blue);color:#fff;text-decoration:none;border-radius:8px;font-size:18px;font-weight:700;transition:background-color 0.3s;box-shadow:0 4px 10px rgb(13 71 161 / .4)}.buy-now-sidebar-btn:hover{background-color:#083377;transform:translateY(-1px)}@media (max-width:992px){.course-details-layout{grid-template-columns:1fr;gap:20px}.details-sidebar-column{position:relative;top:0;order:-1}.included-grid{grid-template-columns:repeat(auto-fit,minmax(250px,1fr))}}@media (max-width:580px){.main-wrapper{padding:10px}.course-main-title{font-size:24px}.info-section{padding:20px}.info-section h2{font-size:20px}.item-header{font-size:14px;padding:12px 15px}.meta-tags{display:none}.teachers-grid{justify-content:center;gap:15px}.teacher-card{width:140px}.teacher-card img{height:120px;object-fit:cover}.offer-price{font-size:24px}.original-price{font-size:14px}}