:root{--primary-accent:#4f46e5;--primary-accent-rgb:79,70,229;--primary-hover:#4338ca;--primary-light:rgba(var(--primary-accent-rgb), 0.08);--gradient-primary:linear-gradient(135deg, #4f46e5 0%, #4338ca 100%);--text-on-accent:#ffffff;--text-link:var(--primary-accent);--border-highlight:var(--primary-accent);--bg-body:#f8f9fa;--bg-content:#ffffff;--bg-alt:#f3f4f6;--bg-element:#e5e7eb;--bg-content-rgb:255,255,255;--text-headings:#111827;--text-primary:#374151;--text-secondary:#6b7280;--text-muted:#9ca3af;--border-color:#e5e7eb;--border-strong:#d1d5db;--success-color:#059669;--success-bg:rgba(5, 150, 105, 0.1);--success-border:rgba(5, 150, 105, 0.3);--warning-color:#d97706;--warning-bg:rgba(217, 119, 6, 0.1);--warning-border:rgba(217, 119, 6, 0.3);--danger-color:#dc2626;--danger-hover:#b91c1c;--danger-bg:rgba(220, 38, 38, 0.1);--danger-border:rgba(220, 38, 38, 0.3);--info-color:#2563eb;--info-bg:rgba(37, 99, 235, 0.1);--info-border:rgba(37, 99, 235, 0.3);--shadow-sm:0 1px 2px rgba(0, 0, 0, 0.04);--shadow-md:0 4px 6px -1px rgba(0, 0, 0, 0.07),0 2px 4px -2px rgba(0, 0, 0, 0.07);--shadow-lg:0 10px 15px -3px rgba(0, 0, 0, 0.08),0 4px 6px -4px rgba(0, 0, 0, 0.08);--shadow-accent:0 4px 14px rgba(var(--primary-accent-rgb), 0.2);--header-height:65px;--sidebar-width:260px;--font-primary:"Inter",sans-serif;--font-headings:"Poppins",sans-serif;--font-brand:"Baloo 2","Poppins",sans-serif;--border-radius-sm:4px;--border-radius-md:8px;--border-radius-lg:12px;--transition-default:0.25s ease-in-out;--transition-fast:0.15s ease-in-out;--prism-bg:#f9fafb;--prism-text:#374151;--prism-comment:#6b7280;--prism-punctuation:#9ca3af;--prism-property:#dc2626;--prism-keyword:var(--primary-accent);--prism-string:#059669;--prism-function:#d97706;--prism-boolean:#dc2626;--prism-number:#059669;--prism-operator:#9ca3af;--prism-variable:#4338ca;--prism-class-name:#d97706;--cert-border-gold:#d97706;--cert-border-light-gold:rgba(217, 119, 6, 0.3);--cert-title-gold:#b45309;--cert-download-bg:linear-gradient(135deg, #d97706, #b45309);--cert-text-color:#374151;--cert-line-color:#d1d5db;--cert-bg:#ffffff;--modal-image-bg:rgba(17, 24, 39, 0.9);--modal-image-caption:#d1d5db;--modal-image-close:#f9fafb;--modal-image-close-hover:#e5e7eb}[data-theme=dark]{--primary-accent:#818cf8;--primary-accent-rgb:129,140,248;--primary-hover:#6366f1;--primary-light:rgba(var(--primary-accent-rgb), 0.1);--gradient-primary:linear-gradient(135deg, #6366f1 0%, #4f46e5 100%);--text-on-accent:#ffffff;--bg-body:#111827;--bg-content:#1f2937;--bg-alt:#374151;--bg-element:#374151;--bg-content-rgb:31,41,55;--text-headings:#f9fafb;--text-primary:#e5e7eb;--text-secondary:#9ca3af;--text-muted:#6b7280;--border-color:#374151;--border-strong:#4b5563;--success-color:#34d399;--success-bg:rgba(52, 211, 153, 0.1);--success-border:rgba(52, 211, 153, 0.3);--warning-color:#fbbf24;--warning-bg:rgba(251, 191, 36, 0.1);--warning-border:rgba(251, 191, 36, 0.3);--danger-color:#f87171;--danger-hover:#ef4444;--danger-bg:rgba(248, 113, 113, 0.1);--danger-border:rgba(248, 113, 113, 0.3);--info-color:#60a5fa;--info-bg:rgba(96, 165, 250, 0.1);--info-border:rgba(96, 165, 250, 0.3);--shadow-sm:0 1px 2px rgba(0, 0, 0, 0.2);--shadow-md:0 4px 6px -1px rgba(0, 0, 0, 0.3),0 2px 4px -2px rgba(0, 0, 0, 0.3);--shadow-lg:0 10px 15px -3px rgba(0, 0, 0, 0.4),0 4px 6px -4px rgba(0, 0, 0, 0.4);--shadow-accent:0 4px 14px rgba(var(--primary-accent-rgb), 0.2);--prism-bg:#1f2937;--prism-text:#e5e7eb;--prism-comment:#6b7280;--prism-punctuation:#9ca3af;--prism-property:#f87171;--prism-keyword:#818cf8;--prism-string:#34d399;--prism-function:#fbbf24;--prism-boolean:#f87171;--prism-number:#34d399;--prism-operator:#9ca3af;--prism-variable:#60a5fa;--prism-class-name:#fbbf24;--cert-border-gold:#fbbf24;--cert-border-light-gold:rgba(251, 191, 36, 0.3);--cert-title-gold:#fcd34d;--cert-download-bg:linear-gradient(135deg, #fbbf24, #d97706);--cert-text-color:#e5e7eb;--cert-line-color:#6b7280;--cert-bg:#1f2937}*,::after,::before{box-sizing:border-box;margin:0;padding:0}html{scroll-behavior:smooth;scroll-padding-top:var(--header-height)}body{display:flex;padding-top:var(--header-height);font-family:var(--font-primary);font-size:15px;line-height:1.65;color:var(--text-primary);background-color:var(--bg-body);transition:background-color var(--transition-default),color var(--transition-default);-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}body.no-scroll{overflow:hidden;height:100vh}img{max-width:100%;height:auto;display:block}.container{width:90%;max-width:1200px;margin:0 auto;padding:0 15px}.hidden{display:none!important}::-webkit-scrollbar{width:8px;height:8px}::-webkit-scrollbar-track{background:var(--bg-element)}::-webkit-scrollbar-thumb{background-color:var(--border-strong);border-radius:var(--border-radius-sm)}::-webkit-scrollbar-thumb:hover{background-color:var(--primary-accent)}.lucide{width:1.4em;height:1.4em;stroke-width:1.5;vertical-align:middle}.page-header{position:fixed;top:0;left:0;z-index:1250;width:100%;height:var(--header-height);padding:0 16px;background-color:var(--bg-content);border-bottom:1px solid var(--border-color);box-shadow:var(--shadow-sm);display:flex;align-items:center;transition:background-color var(--transition-default),border-color var(--transition-default)}.header-content{display:flex;align-items:center;justify-content:space-between;width:100%;margin:0 auto}.header-left{display:flex;align-items:center;gap:8px}.header-right{display:flex;align-items:center;gap:20px}.logo{display:flex;align-items:center;gap:8px;font-family:var(--font-brand);font-size:1.5em;font-weight:700;text-decoration:none;position:relative;letter-spacing:-.5px}.logo-container{display:flex;align-items:center;justify-content:center}.logo-icon-img{height:28px;width:auto}.brand-text{font-family:var(--font-brand);font-weight:800;letter-spacing:-.02em}.brand-text .learn,.brand-text .logo-learn,.logo-text .logo-learn{color:var(--text-headings);font-weight:800}.brand-text .blox,.brand-text .logo-blox,.logo-text .logo-blox{color:var(--primary-accent);font-weight:800}.menu-toggle-course,.theme-switch{display:flex;align-items:center;justify-content:center;padding:8px;font-size:1.3em;color:var(--text-secondary);background:0 0;border:none;border-radius:var(--border-radius-md);cursor:pointer;transition:color var(--transition-fast),background-color var(--transition-fast)}.theme-switch{font-size:1.2rem;color:var(--text-primary)}.menu-toggle-course{display:flex}@media (min-width:769px){.menu-toggle-course{display:flex}}.menu-toggle-course:hover,.theme-switch:hover{color:var(--primary-accent);background-color:var(--primary-light)}.user-dropdown{position:relative}.user-toggle{display:flex;align-items:center;gap:8px;padding:8px 14px;font-size:.9rem;font-weight:600;color:var(--text-on-accent);background-color:var(--primary-accent);border:none;border-radius:var(--border-radius-md);cursor:pointer;transition:background-color var(--transition-fast);overflow:visible!important;position:relative;z-index:100}.user-toggle:hover{background-color:var(--primary-hover)}.user-avatar{width:26px;height:26px;border-radius:50%;object-fit:cover}.dropdown-menu{position:absolute;top:calc(100% + 12px);right:0;z-index:1100;display:none;min-width:240px;padding:8px;background-color:var(--bg-content);border:1px solid var(--border-color);border-radius:12px;box-shadow:var(--shadow-lg);animation:slideDown .2s ease-out}.user-dropdown.open .dropdown-menu{display:block}.dropdown-header{padding:12px 16px;background-color:var(--bg-alt);border-radius:8px;margin-bottom:8px}.dropdown-user-info{display:flex;flex-direction:column;gap:2px}.dropdown-user-name{font-weight:700;color:var(--text-headings);font-size:.95rem}.dropdown-user-role{font-size:.8rem;color:var(--text-muted);font-weight:500}.dropdown-divider{height:1px;background-color:var(--border-color);margin:6px 0}.dropdown-item{display:flex;align-items:center;gap:12px;width:100%;padding:10px 16px;border:none;background:0 0;color:var(--text-primary);font-size:.9rem;font-weight:500;text-align:left;cursor:pointer;border-radius:8px;transition:all .15s ease}.dropdown-item i{width:18px;text-align:center;color:var(--text-secondary);transition:color .15s ease}.dropdown-item:hover{background-color:var(--bg-alt);color:var(--primary-accent)}.dropdown-item:hover i{color:var(--primary-accent)}.dropdown-item.danger{color:var(--danger-color)}.dropdown-item.danger i{color:var(--danger-color)}.dropdown-item.danger:hover{background-color:var(--danger-bg)}@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:translateY(0)}}.sidebar{position:fixed;top:var(--header-height);left:0;z-index:1000;width:var(--sidebar-width);height:calc(100vh - var(--header-height));background-color:var(--bg-content);border-right:1px solid var(--border-color);display:flex;flex-direction:column;transition:transform var(--transition-default),background-color var(--transition-default),border-color var(--transition-default)}.sidebar.collapsed{transform:translateX(calc(-1 * var(--sidebar-width)))}.sidebar-progress-container{padding:20px 25px 15px 25px;flex-shrink:0;cursor:pointer;transition:background-color .2s ease}.sidebar-progress-container:hover{background-color:var(--bg-alt)}.sidebar-nav{flex-grow:1;overflow-y:auto;padding:0 8px;overscroll-behavior:contain;background:linear-gradient(var(--bg-content) 30%,rgba(255,255,255,0)),linear-gradient(rgba(0,0,0,.05),rgba(0,0,0,0)),linear-gradient(rgba(255,255,255,0),var(--bg-content) 70%) 0 100%,linear-gradient(rgba(0,0,0,0),rgba(0,0,0,.05)) 0 100%;background-repeat:no-repeat;background-color:var(--bg-content);background-size:100% 40px,100% 10px,100% 40px,100% 10px;background-attachment:local,scroll,local,scroll}[data-theme=dark] .sidebar-nav{background:linear-gradient(var(--bg-content) 30%,rgba(31,41,55,0)),linear-gradient(rgba(0,0,0,.2),rgba(0,0,0,0)),linear-gradient(rgba(31,41,55,0),var(--bg-content) 70%) 0 100%,linear-gradient(rgba(0,0,0,0),rgba(0,0,0,.2)) 0 100%;background-repeat:no-repeat;background-color:var(--bg-content);background-size:100% 40px,100% 10px,100% 40px,100% 10px;background-attachment:local,scroll,local,scroll}.sidebar-footer{padding:10px 8px;flex-shrink:0}.sidebar-progress-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:6px;font-size:.85rem;font-weight:500;color:var(--text-muted)}.sidebar-progress-value{color:var(--primary-accent);font-weight:600}.sidebar-progress-bar{width:100%;height:8px;background-color:var(--bg-element);border-radius:999px;overflow:hidden}.sidebar-progress-bar-fill{height:100%;background-color:var(--primary-accent);border-radius:999px;transition:width .3s ease}.sidebar-heading{padding:10px 17px 5px;font-size:.7rem;font-weight:700;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px}.sidebar-divider{height:1px;margin:12px 25px;background-color:var(--border-color);border:none}.sidebar-footer a,.sidebar-nav a{display:flex;align-items:center;gap:12px;padding:10px 14px;font-size:.9rem;font-weight:500;color:var(--text-secondary);text-decoration:none;border-radius:8px;transition:all .2s ease;margin-bottom:2px;position:relative;border:1px solid transparent}.sidebar-footer a:hover,.sidebar-nav a:hover{background-color:var(--bg-alt);color:var(--text-primary);transform:translateX(3px)}.sidebar-footer a.active,.sidebar-nav a.active{background-color:rgba(var(--primary-accent-rgb),.08);color:var(--primary-accent);font-weight:600;border-color:rgba(var(--primary-accent-rgb),.1)}.sidebar-nav a.active::before{content:"";position:absolute;left:-4px;top:50%;transform:translateY(-50%);height:20px;width:4px;background-color:var(--primary-accent);border-radius:0 4px 4px 0}.sidebar-footer .lucide,.sidebar-nav .lucide{stroke:var(--text-muted);stroke-width:2.2;transition:color var(--transition-fast),stroke var(--transition-fast)}.sidebar-footer a:hover .lucide,.sidebar-nav a:hover .lucide{stroke:var(--text-primary)}.sidebar-footer a.active .lucide,.sidebar-nav a.active .lucide{stroke:var(--primary-accent)}.sidebar-nav{scrollbar-width:thin;scrollbar-color:var(--primary-accent) transparent}.sidebar-nav::-webkit-scrollbar{width:8px}.sidebar-nav::-webkit-scrollbar-track{background:0 0}.sidebar-nav::-webkit-scrollbar-thumb{background-color:var(--primary-accent);border-radius:4px}.sidebar-nav::-webkit-scrollbar-thumb:hover{background-color:var(--primary-hover)}.sidebar-nav a[data-module=welcome] .lucide{stroke:#3a52c4}.main-content{position:relative;width:calc(100% - var(--sidebar-width));margin-left:var(--sidebar-width);padding:20px;background-color:var(--bg-body);transition:margin-left var(--transition-default),width var(--transition-default)}.sidebar.collapsed+.main-content{width:100%;margin-left:0}.modal-overlay{position:fixed;inset:0;background-color:rgba(0,0,0,.6);z-index:1050;display:none;justify-content:center;align-items:center;transition:opacity .3s ease}.modal-overlay.active{display:flex;animation:fadeInModal .3s ease}@keyframes fadeInModal{from{opacity:0;transform:scale(.98)}to{opacity:1;transform:scale(1)}}.modal-content{background-color:var(--bg-content);color:var(--text-primary);padding:30px;border-radius:var(--border-radius-lg);box-shadow:var(--shadow-lg);max-width:600px;width:90%;position:relative;animation:slideUp .3s ease}@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}.modal-close{position:absolute;top:12px;right:15px;font-size:1.5rem;color:var(--text-muted);cursor:pointer;background:0 0;border:none}.modal-close:hover{color:var(--primary-accent)}body.modal-open{overflow:hidden}.linear-controls{position:fixed;bottom:0;left:0;right:0;z-index:950;display:none;transform:translateY(100%);background-color:rgba(var(--bg-content-rgb),.75);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);border-top:1px solid var(--border-color);padding:10px 15px;transition:transform .4s ease,opacity .4s ease;opacity:0;flex-direction:column;gap:10px}.linear-controls.active{transform:translateY(0);opacity:1}.linear-controls:hover{background-color:rgba(var(--bg-content-rgb),.95)}#linearProgress{font-size:.9rem;font-weight:600;color:var(--text-primary);text-align:center}@media (max-width:1024px){.sidebar{width:240px}.main-content{margin-left:240px;width:calc(100% - 240px);padding:15px}.container{max-width:95%}}@media (max-width:768px){body{flex-direction:column}.page-header{padding:0 15px}.header-left,.header-right{gap:8px}.menu-toggle-course{display:flex!important}.sidebar{position:fixed;top:0!important;left:0;width:100%;height:100vh!important;height:100dvh!important;transform:translateX(-100%);z-index:1200;margin:0;padding-top:var(--header-height)}.sidebar.open{transform:translateX(0)}.main-content{width:100%;margin-left:0;padding:10px;padding-bottom:90px!important}.dropdown-menu{position:fixed;top:calc(var(--header-height) + 10px);left:10px;right:10px;width:auto;max-width:none}.linear-controls{display:block}}@media (max-width:480px){html{font-size:14px}.page-header{flex-direction:row;justify-content:space-between;align-items:center;height:var(--header-height);padding:0 10px}.logo{font-size:1.2em;gap:6px}.logo-icon-img{height:28px}.main-content{padding:10px}.dropdown-menu{right:5px;left:5px}}.modal-close-btn{display:flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:50%;background:0 0;color:var(--text-muted);cursor:pointer;transition:all .2s ease}.modal-close-btn:hover{background-color:var(--bg-element);color:var(--text-primary)}.settings-desc{font-size:.9rem;color:var(--text-secondary);margin-bottom:1.2rem}.input-wrapper{position:relative;display:flex;align-items:center}.input-icon{position:absolute;left:12px;width:18px;height:18px;color:var(--text-muted);pointer-events:none}.form-group input[type=text]{width:100%;padding:12px 12px 12px 40px;border:1px solid var(--border-strong);border-radius:8px;background-color:var(--bg-body);color:var(--text-primary);font-family:var(--font-primary);font-size:.95rem;transition:all .2s ease}.form-group input[type=text]:focus{outline:0;border-color:var(--primary-accent);box-shadow:0 0 0 4px var(--primary-light)}.info-item{display:flex;justify-content:space-between;align-items:center;font-size:.85rem;gap:1rem}@media (max-width:768px){#userName{display:none}}.dropdown-menu a{display:flex;align-items:center;gap:12px;padding:12px 16px;color:var(--text-primary);text-decoration:none;border-radius:var(--border-radius-md);transition:background-color var(--transition-fast),color var(--transition-fast);font-size:.95rem;font-weight:500}.dropdown-menu a:hover{background-color:var(--bg-alt);color:var(--primary-accent)}.dropdown-menu a i{font-size:1.1rem;width:20px;text-align:center;opacity:.8}.dropdown-menu a:hover i{opacity:1}#adminPanelBtn{border-top:1px solid var(--border-color);margin-top:8px;padding-top:12px}#adminPanelBtn i{color:var(--warning-color)}:root{--info-color:#3b82f6;--info-bg:rgba(59, 130, 246, 0.1);--info-border:rgba(59, 130, 246, 0.3)}[data-theme=dark]{--info-color:#60a5fa;--info-bg:rgba(96, 165, 250, 0.1);--info-border:rgba(96, 165, 250, 0.3)}.grade-badge{display:inline-flex;align-items:center;gap:6px;border-radius:8px;font-weight:600;white-space:nowrap;transition:transform .2s ease}.grade-badge:hover{transform:scale(1.05)}.username{font-weight:600;color:var(--text-primary)}.daily-challenge-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:1.5rem}.daily-type-badge{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border-radius:8px;font-weight:600;font-size:.9rem}.daily-type-badge.mini_quiz{background:rgba(59,130,246,.1);color:#3b82f6}.daily-type-badge.drag_drop{background:rgba(16,185,129,.1);color:#10b981}.daily-type-badge.code_challenge{background:rgba(139,92,246,.1);color:#8b5cf6}.daily-xp-badge{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;background:linear-gradient(135deg,#fbbf24,#d97706);color:#fff;border-radius:20px;font-weight:700;box-shadow:0 2px 4px rgba(245,158,11,.3)}.daily-question-title{font-size:1.25rem;margin-bottom:1.5rem;color:var(--text-headings)}.daily-no-challenge{text-align:center;padding:3rem;background:var(--bg-alt);border-radius:12px;color:var(--text-secondary)}.level-up-modal{position:fixed;z-index:10000}.level-up-content{box-shadow:0 20px 50px rgba(0,0,0,.3)}@media (max-width:640px){.username{font-size:.9rem}.grade-badge{font-size:.7rem!important;padding:2px 6px!important}}@keyframes pulse-badge{0%,100%{box-shadow:0 1px 4px rgba(var(--primary-accent-rgb),.4)}50%{box-shadow:0 2px 10px rgba(var(--primary-accent-rgb),.6)}}@media (max-width:768px){::-webkit-scrollbar{width:6px;height:6px}::-webkit-scrollbar-track{background:0 0}::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:10px}::-webkit-scrollbar-thumb:hover{background:var(--primary-accent)}*{scrollbar-width:thin;scrollbar-color:var(--border-strong) transparent}.toast-container{position:fixed;bottom:2rem;right:2rem;z-index:10000;display:flex;flex-direction:column;gap:1rem;pointer-events:none}.toast{background:var(--bg-content);color:var(--text-primary);padding:1rem 1.5rem;border-radius:12px;box-shadow:var(--shadow-lg);display:flex;align-items:center;gap:.75rem;min-width:300px;transform:translateX(120%);transition:transform .3s cubic-bezier(.16, 1, .3, 1);pointer-events:auto;border-left:4px solid var(--primary-accent)}.toast.visible{transform:translateX(0)}.toast.success{border-left-color:var(--success-color)}.toast.error{border-left-color:var(--danger-color)}.toast.info{border-left-color:var(--info-color)}.toast-icon{display:flex;align-items:center;justify-content:center}.toast-content{flex:1}.toast-title{font-weight:600;font-size:.95rem;margin-bottom:.2rem}.toast-message{font-size:.85rem;color:var(--text-secondary)}}.toast-container{position:fixed;top:80px;right:20px;z-index:10000;display:flex;flex-direction:column;gap:12px;pointer-events:none}.toast{background:var(--bg-content);border:1px solid var(--border-color);border-radius:12px;padding:16px;min-width:320px;max-width:420px;display:flex;align-items:flex-start;gap:12px;box-shadow:var(--shadow-lg);opacity:0;transform:translateX(400px);transition:all .3s cubic-bezier(.4, 0, .2, 1);pointer-events:auto;position:relative;overflow:hidden}.toast.visible{opacity:1;transform:translateX(0)}.toast-icon{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;flex-shrink:0}.toast.success .toast-icon{background:var(--success-bg);color:var(--success-color)}.toast.error .toast-icon{background:var(--danger-bg);color:var(--danger-color)}.toast.info .toast-icon{background:var(--info-bg);color:var(--info-color)}.toast.xp-toast{border:2px solid var(--primary-accent);box-shadow:0 10px 25px -5px rgba(var(--primary-accent-rgb),.3)}.toast.xp-toast .toast-icon{background:var(--primary-light);color:var(--primary-accent)}.toast-content{flex:1;display:flex;flex-direction:column;gap:4px}.toast-title{font-weight:700;font-size:1rem;color:var(--text-headings);display:flex;align-items:center;gap:8px}.toast-message{font-size:.9rem;color:var(--text-secondary);line-height:1.4}.xp-amount{font-size:1.3rem;font-weight:900;color:var(--primary-accent)}.xp-boost-label{background:linear-gradient(135deg,#ef4444 0,#dc2626 100%);color:#fff;padding:2px 8px;border-radius:6px;font-size:.75rem;font-weight:800;display:inline-flex;align-items:center;gap:4px;box-shadow:0 2px 8px rgba(239,68,68,.3)}.xp-source{font-size:.85rem;color:var(--text-secondary);font-weight:500;margin-top:2px}.xp-total{color:#ef4444;font-weight:900;font-size:1.1em}.main-content{width:100%;max-width:100vw;overflow-x:hidden}.sidebar ul,.sidebar-main-modules ul,.sidebar-nav ul{list-style:none!important;padding-left:0!important;margin:0}.sidebar li,.sidebar-main-modules li,.sidebar-nav li{list-style:none!important}.code-card pre,.snippet-card pre,.template-card pre,code,pre{max-width:100%;overflow-x:auto;word-wrap:break-word;white-space:pre-wrap}.snippet-card,.template-card{max-width:100%;overflow:hidden;box-sizing:border-box}body.hide-smart-nav .smart-nav-bar{display:none!important}@media (max-width:768px){.toast-container{top:70px;right:10px;left:10px}.toast{min-width:auto;width:100%}.properties-grid{grid-template-columns:1fr!important;gap:1rem}.property-header{font-size:.95rem;padding:.85rem}.property-content{padding:1rem}.page-header{padding:0 1rem;height:60px}.header-content{width:100%;padding:0}.header-left{gap:.8rem;min-width:0}.header-right{gap:.5rem}.logo-text{font-size:1.1rem;white-space:nowrap}.course-hero-card{padding:1.5rem;margin-bottom:2rem}.hero-title-group h1{font-size:clamp(1.5rem, 4vw, 2rem)}.toolbox-tabs{width:100%;overflow-x:auto}.snippet-card,.template-card{padding:1rem;max-width:100%}.snippet-card pre,.template-card pre{font-size:.85rem;max-height:250px;overflow-x:auto}.grid-two-columns{grid-template-columns:1fr;gap:1rem}.module-nav-pills-container{display:flex;width:100%;padding:0 1rem;margin-bottom:1.5rem;justify-content:center}.module-nav-pills{display:flex;flex-wrap:nowrap;gap:.4rem;width:100%;max-width:100%;padding:.4rem .6rem}.nav-pill{flex:1 0 auto;min-width:auto;white-space:nowrap;padding:.65rem 1rem;font-size:.9rem}.settings-modal-content{grid-template-columns:1fr!important;height:auto!important;max-height:90vh!important}.settings-sidebar{flex-direction:row!important;overflow-x:auto!important;padding:1rem!important;border-right:none!important;border-bottom:1px solid var(--border-color)!important;gap:.5rem!important}.settings-nav-item{white-space:nowrap!important;flex-shrink:0!important;font-size:.85rem!important;padding:.65rem .85rem!important}.settings-main{padding:1.5rem 1rem!important}.smart-nav-bar{padding:.75rem .5rem!important;gap:.5rem!important}}@media (max-width:480px){.page-header{padding:.5rem .75rem}.logo-icon-img{width:24px;height:24px}.logo-text{font-size:1.1rem}.theme-switch{padding:.4rem;font-size:1rem}.course-hero-card{padding:1.2rem;margin-bottom:1.5rem}.hero-title-group h1{font-size:1.5rem}.daily-option-btn{font-size:.9rem;padding:.8rem}.snippet-card,.template-card{padding:.75rem}.snippet-card pre,.template-card pre{font-size:.75rem;max-height:200px}.copy-btn{font-size:.85rem;padding:.4rem .6rem}}@media (max-width:360px){.logo-text{display:none}}.site-banner{position:fixed;top:var(--header-height,65px);left:var(--sidebar-width,260px);right:0;z-index:999;animation:bannerSlideIn .4s cubic-bezier(.16,1,.3,1)}.site-banner.hidden{display:none}@keyframes bannerSlideIn{from{transform:translateY(-100%);opacity:0}to{transform:translateY(0);opacity:1}}.banner-wrapper{display:flex;align-items:center;justify-content:center;gap:1.25rem;padding:.75rem 3rem .75rem 1.5rem;position:relative;backdrop-filter:blur(10px);border-bottom:1px solid rgba(255,255,255,.1)}.banner-wrapper.type-info{background:linear-gradient(135deg,rgba(79,70,229,.95) 0,rgba(67,56,202,.95) 50%,rgba(99,102,241,.95) 100%);box-shadow:0 2px 20px rgba(79,70,229,.25),inset 0 1px 0 rgba(255,255,255,.1)}.banner-wrapper.type-event{background:linear-gradient(135deg,rgba(139,92,246,.95) 0,rgba(124,58,237,.95) 50%,rgba(168,85,247,.95) 100%);box-shadow:0 2px 20px rgba(139,92,246,.25),inset 0 1px 0 rgba(255,255,255,.1)}.banner-wrapper.type-warning{background:linear-gradient(135deg,rgba(245,158,11,.95) 0,rgba(217,119,6,.95) 50%,rgba(251,191,36,.95) 100%);box-shadow:0 2px 20px rgba(245,158,11,.25),inset 0 1px 0 rgba(255,255,255,.1)}.banner-wrapper.type-success{background:linear-gradient(135deg,rgba(34,197,94,.95) 0,rgba(22,163,74,.95) 50%,rgba(74,222,128,.95) 100%);box-shadow:0 2px 20px rgba(34,197,94,.25),inset 0 1px 0 rgba(255,255,255,.1)}.banner-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:rgba(255,255,255,.15);border-radius:10px;flex-shrink:0;backdrop-filter:blur(5px)}.banner-icon i,.banner-icon svg{width:18px;height:18px;color:#fff;stroke:white}.banner-content{display:flex;align-items:center;justify-content:center;gap:1rem;flex:1;flex-wrap:wrap}.banner-message{color:#fff;font-size:.9rem;font-weight:500;line-height:1.4;text-shadow:0 1px 2px rgba(0,0,0,.1)}.banner-link{display:inline-flex;align-items:center;gap:.35rem;color:#fff;text-decoration:none;font-weight:600;font-size:.85rem;padding:.5rem 1rem;background:rgba(255,255,255,.2);border:1px solid rgba(255,255,255,.25);border-radius:8px;transition:all .2s ease;white-space:nowrap;backdrop-filter:blur(5px)}.banner-link:hover{background:rgba(255,255,255,.3);border-color:rgba(255,255,255,.4);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,.15)}.banner-link:empty{display:none}.banner-close{position:absolute;right:.75rem;top:50%;transform:translateY(-50%);background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);color:rgba(255,255,255,.8);width:28px;height:28px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.banner-close:hover{background:rgba(255,255,255,.2);color:#fff;border-color:rgba(255,255,255,.3)}.banner-close i{width:14px;height:14px}body.has-banner .main-content{margin-top:52px}.banner-nav{display:flex;align-items:center;gap:.5rem;margin-left:auto;padding-left:1rem}.banner-nav-btn{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.15);color:#fff;width:28px;height:28px;border-radius:8px;cursor:pointer;display:flex;align-items:center;justify-content:center;transition:all .2s ease}.banner-nav-btn:hover:not(:disabled){background:rgba(255,255,255,.2);border-color:rgba(255,255,255,.3)}.banner-nav-btn:disabled{opacity:.3;cursor:not-allowed}.banner-nav-btn i{width:14px;height:14px}.banner-nav-dots{display:flex;gap:6px;padding:0 .5rem}.banner-nav-dots .dot{width:6px;height:6px;border-radius:50%;background:rgba(255,255,255,.3);cursor:pointer;transition:all .2s ease}.banner-nav-dots .dot:hover{background:rgba(255,255,255,.5);transform:scale(1.2)}.banner-nav-dots .dot.active{background:#fff;transform:scale(1.3);box-shadow:0 0 8px rgba(255,255,255,.5)}.banner-countdown{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;justify-content:center}.countdown-label{font-weight:600;font-size:.9rem;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.1)}.countdown-timer{display:flex;gap:.5rem}.countdown-unit{display:flex;flex-direction:column;align-items:center;background:rgba(0,0,0,.15);border:1px solid rgba(255,255,255,.1);padding:.4rem .5rem;border-radius:8px;min-width:48px;backdrop-filter:blur(5px)}.countdown-value{font-size:1.1rem;font-weight:700;color:#fff;font-family:Inter,monospace;letter-spacing:.5px;line-height:1.2}.countdown-name{font-size:.6rem;color:rgba(255,255,255,.7);text-transform:uppercase;font-weight:600;letter-spacing:.5px}.countdown-ended{font-weight:600;font-size:.9rem;color:#fff;padding:.5rem 1rem;background:rgba(255,255,255,.2);border-radius:8px;animation:pulseGlow 1.5s ease-in-out infinite}@keyframes pulseGlow{0%,100%{opacity:1;box-shadow:0 0 10px rgba(255,255,255,.2)}50%{opacity:.8;box-shadow:0 0 20px rgba(255,255,255,.4)}}.banner-poll{display:flex;align-items:center;gap:1rem;flex-wrap:wrap;justify-content:center;width:100%}.poll-question{font-weight:600;font-size:.9rem;color:#fff;text-shadow:0 1px 2px rgba(0,0,0,.1)}.poll-options{display:flex;flex-wrap:wrap;gap:.5rem;justify-content:center}.poll-option{position:relative;background:rgba(255,255,255,.2);border:2px solid rgba(255,255,255,.4);color:#fff!important;padding:.5rem 1.25rem;border-radius:8px;cursor:pointer;font-weight:600;font-size:.9rem;transition:all .25s ease;overflow:hidden;min-width:90px;text-align:center;text-shadow:0 1px 3px rgba(0,0,0,.3)}.poll-option,.poll-option *,.poll-option .option-percent,.poll-option .option-text{color:#fff!important}.poll-option:hover{background:rgba(255,255,255,.35);border-color:rgba(255,255,255,.6);transform:translateY(-1px);box-shadow:0 4px 12px rgba(0,0,0,.15)}.option-text{position:relative;z-index:2}.option-bar{position:absolute;left:0;top:0;bottom:0;width:0;background:rgba(255,255,255,.2);transition:width .5s ease;border-radius:8px}.option-percent{position:relative;z-index:2;margin-left:.5rem;font-weight:700;font-size:.8rem;opacity:0;transition:opacity .3s}.poll-option.voted{cursor:default;pointer-events:none}.poll-option.voted .option-percent{opacity:1}.poll-option.user-voted{border-color:#fff;background:rgba(255,255,255,.25);box-shadow:0 0 12px rgba(255,255,255,.2)}.poll-status{font-size:.75rem;color:rgba(255,255,255,.6);font-style:italic}.banner-image-content{display:flex;align-items:center;gap:1rem}.banner-img{height:36px;width:auto;border-radius:6px;object-fit:cover;border:1px solid rgba(255,255,255,.2)}.banner-image-text{display:flex;align-items:center;gap:.75rem;flex-wrap:wrap}@media (max-width:768px){.site-banner{left:0}.banner-wrapper{flex-wrap:wrap;padding:.65rem 2.5rem .65rem 1rem;gap:.75rem}.banner-icon{width:30px;height:30px;border-radius:8px}.banner-icon i{width:16px;height:16px}.banner-message{font-size:.85rem;text-align:center;width:100%}.banner-link{font-size:.8rem;padding:.4rem .8rem}.banner-close{right:.5rem;width:26px;height:26px}body.has-banner .main-content{margin-top:60px}.banner-nav{margin-left:0;padding-left:0;width:100%;justify-content:center}.banner-nav-btn{width:26px;height:26px}.banner-countdown{gap:.75rem;width:100%}.countdown-label{font-size:.85rem;text-align:center;width:100%}.countdown-unit{padding:.35rem .4rem;min-width:42px}.countdown-value{font-size:1rem}.countdown-name{font-size:.55rem}.banner-poll{gap:.5rem}.poll-question{font-size:.85rem;text-align:center;width:100%}.poll-option{padding:.4rem .8rem;font-size:.8rem;min-width:70px}.banner-image-content{flex-direction:column;text-align:center;gap:.5rem}.banner-img{height:28px}}