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a:hover{color:var(--primary-dark)}.courses-grid{flex-wrap:wrap;gap:20px;margin-top:15px;display:flex}.pagination-controls{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:15px;margin-bottom:20px;display:flex}.pagination-info p{color:var(--gray-500);margin:3px 0}.pagination-buttons{gap:5px;display:flex}.pagination-buttons button{padding:8px 16px}.pagination-buttons button:disabled{opacity:.4;cursor:not-allowed}.course-main{flex-grow:1;min-height:calc(100vh - 120px);display:flex;overflow:hidden}.course-sidebar{background:var(--gray-900);color:#fff;-webkit-user-select:none;user-select:none;flex-direction:column;flex-basis:280px;min-width:280px;display:flex;overflow-y:auto}.course-sidebar-header{align-items:center;gap:10px;padding:16px 14px;display:flex}.course-sidebar-header .back-link{color:var(--gray-400);align-items:center;display:flex}.course-sidebar-header 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40px;font-size:.88em;text-decoration:none;display:flex}.module-child:hover{color:#fff;background:#ffffff0a;text-decoration:none}.module-child.active{color:var(--accent);background:#16a34a26}.no-content{color:var(--gray-600);margin:0;padding:10px 18px 10px 40px;font-size:.88em}.course-admin-section{border-top:1px solid #ffffff14;margin-top:auto;padding-top:10px}.course-dereg-section{border-top:1px solid #ffffff14;margin-top:auto;padding:12px 18px}.admin-section-title{color:#fff;margin:0;padding:10px 18px 5px;font-size:.9em;font-weight:700}.course-content{background:var(--white);flex-grow:1;height:calc(100vh - 120px);padding:36px 56px;overflow-y:auto}.welcome-content{text-align:center;padding:72px 20px}.welcome-content h1{margin-bottom:16px}.welcome-content p{color:var(--gray-500)}.article-content{line-height:1.8}.article-content h1,.article-content h2,.article-content h3{margin-top:1.5em;margin-bottom:.5em}.article-content pre{background:var(--gray-50);border-radius:var(--radius-md);border:1px solid var(--gray-200);padding:18px;overflow-x:auto}.article-content code{background:var(--gray-100);border-radius:5px;padding:2px 7px;font-family:JetBrains Mono,Fira Code,monospace;font-size:.88em}.article-content pre code{background:0 0;padding:0}.article-content table{border-collapse:collapse;width:100%;margin:1em 0}.article-content td,.article-content th{border:1px solid var(--gray-200);text-align:left;padding:10px 14px}.quiz-content{text-align:center;padding:48px}.student-sidebar{-webkit-user-select:none;user-select:none;background:#f9fafb;border-right:1px solid #e5e7eb;flex-direction:column;flex-basis:280px;min-width:280px;display:flex;overflow-y:auto}.student-sidebar-header{border-bottom:1px solid #e5e7eb;padding:14px 16px}.student-back-btn{color:var(--primaryColor);border-radius:8px;align-items:center;gap:8px;padding:8px 12px;font-size:.9em;font-weight:500;text-decoration:none;transition:background 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(max-width:768px){.course-sidebar,.student-sidebar{flex-basis:100%;width:100%}.course-content{padding:20px}}