:root{--primary: #3ECFB0;--secondary: #FF6B8B}.search-form{width:300px}.avatar{width:40px;height:40px;border-radius:50%}.sidebar-column{height:auto;position:relative}.sidebar{background:#ffffff;border-radius:8px;padding:20px;position:sticky;top:90px;height:calc(100vh - 120px);overflow-y:auto;transition:all 0.3s ease;z-index:100}.content-column{min-height:100vh}.sidebar::-webkit-scrollbar{width:6px}.sidebar::-webkit-scrollbar-track{background:rgba(0,0,0,0.03);border-radius:8px}.sidebar::-webkit-scrollbar-thumb{background-color:rgba(0,0,0,0.1);border-radius:8px}#mobile-sidebar-toggle{position:fixed;bottom:20px;right:20px;width:60px;height:60px;border-radius:50%;background-color:var(--primary);color:white;border:none;box-shadow:0 4px 10px rgba(0,0,0,0.2);z-index:1002;display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:0.8rem;transition:all 0.3s ease}#mobile-sidebar-toggle i{font-size:1.2rem;margin-bottom:2px}#mobile-sidebar-toggle:hover{background-color:#35b69e;transform:translateY(-2px);box-shadow:0 6px 15px rgba(0,0,0,0.25)}#sidebar-overlay{position:fixed;top:0;left:0;width:100%;height:100%;background-color:rgba(0,0,0,0.5);z-index:10;display:none;opacity:0;transition:opacity 0.3s ease}#sidebar-overlay.active{display:block;opacity:1}.progress-indicator{width:10px;height:10px;border-radius:50%;display:inline-block;margin-right:5px}.btn-primary{background-color:var(--primary);border-color:var(--primary)}.btn-secondary{background-color:var(--secondary);border-color:var(--secondary)}.math-expression{font-size:1.5rem;text-align:center;margin:20px 0}.accordion-button:not(.collapsed){background-color:#e7f1ff}.accordion-button{font-size:13px !important}.card-body{border-bottom:1px solid rgba(0,0,0,0.125)}@media (max-width: 991px){.sidebar-column{position:fixed;top:0;left:-100%;width:85%;height:100%;z-index:1000;padding:0;transition:left 0.3s ease;background-color:#f8f9fa}.sidebar-column.active{left:0}.sidebar{position:relative;top:0;height:100vh;z-index:9999999;max-height:100vh;border-radius:0;padding-top:60px}.content-column{width:100%;flex:0 0 100%;max-width:100%}#close-sidebar{position:absolute;top:20px;right:20px;z-index:1002}}