@media (max-width:768px){.chat-container{width:100%;height:100vh}}.chat-message-enter{opacity:0;transform:translateY(10px)}.chat-message-enter-active{opacity:1;transition:opacity .3s,transform .3s;transform:translateY(0)}.quiz-option{transition:all .2s}.quiz-option:hover{transform:translate(4px);box-shadow:0 2px 8px #696eff33}.topic-button{transition:all .2s}.topic-button:hover{transform:scale(1.05)}.course-card{transition:all .3s}.course-card:hover{box-shadow:0 4px 20px #0000001a}@keyframes pulse{0%,to{opacity:1}50%{opacity:.5}}.pulse-animation{animation:2s cubic-bezier(.4,0,.6,1) infinite pulse}.message-bubble-bot{background:linear-gradient(135deg,#696eff 0%,#8b5cf6 100%);border-radius:18px 18px 18px 4px}.message-bubble-user{background:#f3f4f6;border-radius:18px 18px 4px}.mobile-menu-enter{opacity:0;transform:translateY(-10px)}.mobile-menu-enter-active{opacity:1;transition:opacity .2s,transform .2s;transform:translateY(0)}.question-progress{background:#e5e7eb;border-radius:2px;height:4px;overflow:hidden}.question-progress-bar{background:linear-gradient(90deg,#696eff,#f8acff);height:100%;transition:width .3s}.selection-grid{flex-wrap:wrap;justify-content:center;gap:8px;display:flex}.chat-messages::-webkit-scrollbar{width:6px}.chat-messages::-webkit-scrollbar-track{background:0 0}.chat-messages::-webkit-scrollbar-thumb{background:#d1d5db;border-radius:3px}.chat-messages::-webkit-scrollbar-thumb:hover{background:#9ca3af}