.course-assistant-wrapper{position:fixed;top:100px;left:24px;z-index:10000;font-family:var(--font-sans)}.assistant-trigger{width:60px;height:60px;border-radius:50%;background:white;border:2px solid #1ab79d;color:white;display:flex;align-items:center;justify-content:center;box-shadow:0 4px 12px rgba(26,183,157,.3);cursor:pointer;position:relative;transition:all .3s ease}.assistant-trigger:hover{box-shadow:0 15px 40px rgba(0,0,0,.25),0 0 30px rgba(25,135,84,.6)}.assistant-trigger:before{content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:70px;height:70px;border-radius:50%;background:rgba(26,183,157,.4);z-index:-1;animation:pulse 2s infinite}@keyframes pulse{0%{transform:translate(-50%,-50%) scale(1);opacity:.8}70%{transform:translate(-50%,-50%) scale(1.4);opacity:0}to{transform:translate(-50%,-50%) scale(1);opacity:0}}.assistant-trigger.active{background:#2c3e50;border-color:#2c3e50}@keyframes float{0%,to{transform:translateY(0)}50%{transform:translateY(-5px)}}.assistant-window{position:fixed;bottom:100px;left:24px;width:380px;max-height:calc(100vh - 120px);background:white;border-radius:16px;box-shadow:0 10px 40px rgba(0,0,0,.15);display:flex;flex-direction:column;overflow:hidden;z-index:9999;border:none}.assistant-header-new{background:#1AB79D;padding:15px 20px;color:white;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid rgba(255,255,255,.1)}.header-info{display:flex;align-items:center;gap:12px}.header-logo-circle{width:44px;height:44px;background:white;border-radius:50%;display:flex;align-items:center;justify-content:center;overflow:hidden;border:2px solid white}.logo-img{width:80%;height:auto;object-fit:contain}.header-text-new h3{margin:0;font-size:17px;font-weight:700;color:white;letter-spacing:-.3px}.header-text-new p{margin:0;font-size:13px;color:rgba(255,255,255,.9);font-weight:500}.close-btn-new{background:rgba(0,0,0,.1);border:none;color:white;width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.close-btn-new:hover{background:rgba(0,0,0,.2)}.welcome-card{background:#f8fafc;padding:20px;border-radius:16px;text-align:center;margin-bottom:24px;border:1px solid #e2e8f0;box-shadow:0 4px 12px rgba(0,0,0,.03)}.welcome-card h3{color:#1AB79D;font-size:18px;font-weight:800;margin-bottom:8px}.welcome-card p{color:#64748b;font-size:14px;margin:0;font-weight:500}.assistant-body{flex:1 1;overflow-y:auto;padding:20px;display:flex;flex-direction:column;gap:16px;scrollbar-width:thin;scrollbar-color:rgba(0,0,0,.1) transparent}.message-container{display:flex;flex-direction:column;max-width:85%}.message-container.bot{align-self:flex-start}.message-container.user{align-self:flex-end}.message-bubble{padding:12px 16px;border-radius:18px;font-size:14px;line-height:1.5}.bot .message-bubble{background:white;color:#333;border-bottom-left-radius:4px;box-shadow:0 4px 15px rgba(0,0,0,.05);border:1px solid #f1f5f9}.user .message-bubble{background:#1AB79D;color:white;border-bottom-right-radius:4px}.message-options{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}.option-btn{background:#f8fafc;border:1px solid #e2e8f0;color:#1a1a1a;padding:8px 16px;border-radius:12px;font-size:13px;font-weight:600;cursor:pointer;transition:all .2s;text-align:left;display:block;width:100%}.option-btn:hover{background:#1AB79D;color:white;border-color:#1AB79D;transform:translateX(5px)}.typing-indicator{display:flex;gap:4px;padding:12px 16px;background:white;border-radius:18px;border-bottom-left-radius:4px;width:-moz-fit-content;width:fit-content}.typing-indicator span{width:6px;height:6px;background:#cbd5e1;border-radius:50%;animation:typing 1s ease-in-out infinite}.typing-indicator span:nth-child(2){animation-delay:.2s}.typing-indicator span:nth-child(3){animation-delay:.4s}@keyframes typing{0%,to{transform:translateY(0)}50%{transform:translateY(-4px)}}.assistant-footer{padding:15px 20px;background:white;border-top:1px solid #eee}.assistant-footer form{display:flex;gap:10px}.assistant-footer input{flex:1 1;border:1px solid #e2e8f0;border-radius:var(--form-input-radius);padding:10px 18px;font-size:14px;outline:none;transition:all .2s}.assistant-footer input:focus{border-color:var(--form-primary);box-shadow:0 0 0 3px rgba(40,167,69,.1)}.assistant-footer button{width:40px;height:40px;border-radius:50%;background:#1AB79D;color:white;border:none;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:all .2s}.assistant-footer button:hover:not(:disabled){background:#149a84;transform:scale(1.05)}.assistant-footer button:disabled{background:#e2e8f0;cursor:not-allowed}.close-btn{background:transparent;border:none;color:white;cursor:pointer;opacity:.8;transition:opacity .2s}.close-btn:hover{opacity:1}@media (max-width:480px){.course-assistant-wrapper{top:auto;bottom:150px;left:20px}.assistant-trigger{width:55px;height:55px;border-width:2px}.assistant-trigger svg{width:20px;height:20px}.assistant-window{width:calc(100vw - 40px);max-height:calc(100vh - 40px);bottom:20px;left:20px}}