:root{--optic-blue:#0D3A6A;--optic-gold:#D4AF37;--bot-bg:#F0F2F5}#ai-trigger-btn{position:fixed;bottom:60px;right:10px;width:44px;height:44px;background:#fff;border-radius:50%;display:none;align-items:center;justify-content:center;cursor:pointer;z-index:99;box-shadow:0 4px 15px rgb(13 58 106 / .3);border:2px solid var(--optic-blue);overflow:hidden;animation:botBouncePulse 2.5s infinite}#ai-trigger-btn img{width:100%;height:100%;object-fit:cover}@keyframes botBouncePulse{0%{transform:scale(1);box-shadow:0 0 0 0 rgb(13 58 106 / .5)}30%{transform:scale(1.05) translateY(-5px);box-shadow:0 0 0 10px #fff0}100%{transform:scale(1)}}#optic-ai-widget{position:fixed;bottom:60px;right:12px;width:360px;max-width:90vw;height:580px;max-height:75vh;background:#fff;border-radius:18px;box-shadow:0 15px 40px rgb(0 0 0 / .2);display:none;flex-direction:column;z-index:1000000;overflow:hidden;border:1px solid rgb(13 58 106 / .1);font-family:'Noto Serif Bengali',sans-serif;animation:slideUp 0.3s ease}@keyframes slideUp{from{transform:translateY(20px);opacity:0}to{transform:translateY(0);opacity:1}}#chat-header{background:var(--optic-blue);color:#fff;padding:16px 20px;display:flex;justify-content:space-between;align-items:center;border-bottom:3px solid var(--optic-gold)}#chat-header span{font-size:17px;font-weight:600}#chat-header .header-actions{display:flex;gap:15px;align-items:center}#chat-header .action-btn{cursor:pointer;font-size:20px;opacity:.8;transition:0.2s}#chat-header .action-btn:hover{opacity:1;transform:scale(1.1)}#chat-body{flex:1;overflow-y:auto;padding:15px;background:#FAFAFA;display:flex;flex-direction:column;gap:14px}.msg{max-width:85%;padding:12px 18px;font-size:15.5px;line-height:1.6;border-radius:16px;word-wrap:break-word}.user-msg{align-self:flex-end;background:var(--optic-blue);color:#fff;border-bottom-right-radius:2px}.bot-msg{align-self:flex-start;background:var(--bot-bg);color:#1A1A1A;border-bottom-left-radius:2px;font-weight:500}.user-img-preview{max-width:100%;border-radius:8px;margin-bottom:5px;display:block}.typing-indicator{display:flex;gap:4px;padding:10px}.typing-indicator span{width:8px;height:8px;background:var(--optic-blue);border-radius:50%;animation:typing 1.4s infinite}.typing-indicator span:nth-child(2){animation-delay:0.2s}.typing-indicator span:nth-child(3){animation-delay:0.4s}@keyframes typing{0%,60%,100%{transform:translateY(0)}30%{transform:translateY(-10px)}}#quick-replies{display:flex;gap:10px;padding:10px 15px;overflow-x:auto;white-space:nowrap;border-top:1px solid #eee;scrollbar-width:none}#quick-replies::-webkit-scrollbar{display:none}.q-btn{flex-shrink:0;background:#f4f6f8;color:var(--optic-blue);border:1px solid #dce1e6;padding:8px 16px;border-radius:20px;font-size:14px;cursor:pointer;transition:0.2s;font-family:'Noto Serif Bengali',sans-serif}.q-btn:hover{background:var(--optic-blue);color:#fff}#chat-footer{padding:12px 15px;background:#fff;border-top:1px solid #eee}#chat-input-box{width:100%;border:1px solid #e0e0e0;padding:12px;border-radius:8px;outline:none;font-size:15px;margin-bottom:10px;font-family:'Noto Serif Bengali',sans-serif;box-sizing:border-box;resize:none}.footer-btns{display:flex;justify-content:space-between;align-items:center}.upload-btn{background:#f0f0f0;border:none;padding:8px 12px;border-radius:6px;font-size:13px;cursor:pointer;font-family:'Noto Serif Bengali',sans-serif}.upload-btn:hover{background:#e0e0e0}.send-btn{background:var(--optic-blue);color:#fff;border:none;padding:8px 22px;border-radius:6px;font-weight:600;cursor:pointer;transition:0.2s;font-family:'Noto Serif Bengali',sans-serif}.send-btn:hover:not(:disabled){background:#185494!important;color:#ffffff!important}.send-btn:disabled{opacity:.5;cursor:not-allowed}#img-status{font-size:12px;color:#28a745;margin-bottom:5px;display:none;font-weight:600}#img-status.active{display:block}#error-msg{font-size:12px;color:#dc3545;margin-bottom:5px;display:none}#error-msg.active{display:block}