.mtw-tailieu-wrapper{display:flex;min-height:100vh;background:#f8fafc}.mtw-sidebar{width:300px;background:#fff;border-right:1px solid #e5e7eb;overflow-y:auto;position:sticky;top:0;height:100vh}.mtw-sidebar-inner{padding:20px 0}.mtw-sidebar-header{padding:0 20px 20px;border-bottom:1px solid #e5e7eb;display:flex;align-items:center;gap:10px}.mtw-logo{font-size:20px;font-weight:700;text-decoration:none;color:#1e293b;display:flex;align-items:center;gap:8px}.mtw-logo-icon{font-size:24px}.mtw-nav-section{margin-top:20px}.mtw-nav-title{font-size:14px;font-weight:600;color:#64748b;text-transform:uppercase;padding:0 20px;margin-bottom:10px}.mtw-nav-menu{list-style:none;padding:0;margin:0}.mtw-nav-item>a{display:block;padding:12px 20px;color:#1e293b;text-decoration:none;font-size:15px;font-weight:500;transition:background 0.2s,color 0.2s}.mtw-nav-item.active>a{background:#e0f2fe;color:#0284c7;font-weight:600}.mtw-nav-item>a:hover{background:#f1f5f9}.mtw-nav-submenu{list-style:none;margin:0;padding-left:20px}.mtw-nav-submenu>li>a{display:block;padding:10px 20px;color:#475569;font-size:14px;text-decoration:none;transition:color 0.2s}.mtw-nav-submenu>li.active>a{color:#0284c7;font-weight:600}.mtw-nav-posts{list-style:none;padding-left:35px;margin-top:5px}.mtw-nav-posts li a{display:block;padding:6px 20px;font-size:14px;color:#475569;text-decoration:none;transition:color 0.2s}.mtw-nav-posts li.active>a{color:#0ea5e9;font-weight:600}.mtw-sidebar-footer{margin-top:20px;font-size:13px;color:#94a3b8;padding:0 20px;border-top:1px solid #e2e8f0;padding-top:20px}.mtw-sidebar-footer a{color:#0284c7;text-decoration:none}.mtw-main-content{flex:1;padding:40px;max-width:900px;margin:0 auto}.mtw-article-header{margin-bottom:25px}.mtw-article-title{font-size:32px;font-weight:700;color:#0f172a;margin-bottom:10px}.mtw-article-excerpt{font-size:16px;color:#475569;margin-top:10px;line-height:1.6}.mtw-article-content{font-size:17px;line-height:1.75;color:#1e293b;margin-top:25px}.mtw-article-content img{max-width:100%;border-radius:8px}.mtw-notification{display:flex;padding:15px 20px;border-radius:8px;margin-bottom:25px;gap:12px;align-items:center;border-left:4px solid}.mtw-notification-info{background:#e0f2fe;border-color:#0284c7;color:#0369a1}.mtw-notification-warning{background:#fef9c3;border-color:#ca8a04;color:#b45309}.mtw-notification-danger{background:#fee2e2;border-color:#dc2626;color:#b91c1c}.mtw-notification-icon{font-size:20px}.mtw-voting{margin-top:40px;padding:20px;background:#f8fafc;border-radius:10px;border:1px solid #e2e8f0}.mtw-voting-question{font-size:16px;font-weight:600;margin-bottom:15px}.mtw-voting-buttons{display:flex;gap:15px}.mtw-vote-btn{display:flex;align-items:center;gap:8px;padding:10px 16px;background:#fff;border:1px solid #cbd5e1;border-radius:8px;cursor:pointer;font-size:15px;transition:background 0.2s,transform 0.2s}.mtw-vote-btn:hover{background:#f1f5f9;transform:translateY(-2px)}.mtw-vote-up .mtw-vote-icon{color:#16a34a}.mtw-vote-down .mtw-vote-icon{color:#dc2626}.mtw-voting-stats{margin-top:10px;color:#64748b;font-size:14px;font-style:italic}.mtw-post-navigation{display:flex;justify-content:space-between;margin-top:40px;padding-top:20px;border-top:1px solid #e2e8f0}.mtw-nav-prev,.mtw-nav-next{max-width:45%}.mtw-nav-label{font-size:13px;color:#64748b;display:block;margin-bottom:5px}.mtw-nav-link{font-size:16px;font-weight:600;color:#0284c7;text-decoration:none}.mtw-nav-link:hover{text-decoration:underline}.mtw-last-updated{margin-top:25px;font-size:14px;color:#64748b;font-style:italic}@media (max-width:1024px){.mtw-sidebar{width:250px}}@media (max-width:768px){.mtw-tailieu-wrapper{flex-direction:column}.mtw-sidebar{width:100%;height:auto;position:relative;border-right:none;border-bottom:1px solid #e5e7eb}.mtw-main-content{padding:20px}}@media (max-width:480px){.mtw-article-title{font-size:26px}.mtw-vote-btn{padding:8px 12px}}