:root{--navy:#111827;--navy2:#1f2937;--purple:#6d5ce7;--purple2:#8b7cf3;--teal:#12b981;--mint:#e9fbf5;--paper:#f5f6fa;--ink:#202534;--muted:#7c8497;--line:#e8eaf0;--white:#fff;--shadow:0 18px 50px rgba(15,30,45,.10)}*{box-sizing:border-box}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--paper)}button,input,textarea{font:inherit}.hidden{display:none!important}.app{height:100vh;display:grid;grid-template-columns:84px 350px 1fr;background:#eef0f5}.rail{background:var(--navy);display:flex;flex-direction:column;align-items:center;padding:18px 9px;color:white}.rail-brand{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,var(--purple2),var(--purple));display:grid;place-items:center;font-weight:900;font-size:20px;box-shadow:0 8px 22px rgba(109,92,231,.35);margin-bottom:25px}.rail-links{width:100%;display:grid;gap:6px}.rail-link{width:100%;height:58px;border:0;border-radius:12px;background:transparent;color:#8992a7;display:grid;place-content:center;gap:2px;cursor:pointer}.rail-link span{font-size:18px}.rail-link small{font-size:9px}.rail-link:hover,.rail-link.active{background:#242d3c;color:#fff}.rail-link.active span{color:#a99fff}.rail-bottom{margin-top:auto}.sidebar{background:var(--white);border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}.sidebar>header{height:84px;padding:17px 20px;display:flex;align-items:center;justify-content:space-between}.sidebar header small{text-transform:uppercase;letter-spacing:.13em;color:var(--purple);font-size:9px;font-weight:800}.sidebar h1{font-size:21px;margin:2px 0 0}.icon-button{border:0;background:#f0f1f5;border-radius:10px;width:36px;height:36px;cursor:pointer;color:#626b7b}.inbox-tabs{display:flex;gap:5px;padding:0 16px 12px;border-bottom:1px solid var(--line)}.inbox-tabs button{border:0;background:transparent;color:var(--muted);font-size:11px;padding:8px 9px;border-radius:8px;cursor:pointer}.inbox-tabs button.active{background:#efedff;color:var(--purple);font-weight:700}.inbox-tabs b{background:var(--purple);color:#fff;border-radius:12px;padding:1px 5px;margin-left:3px;font-size:9px}.search{padding:13px 16px}.search input{width:100%;border:1px solid var(--line);background:#f8f9fb;border-radius:10px;padding:11px 13px;outline:none}.search input:focus{border-color:var(--purple);box-shadow:0 0 0 3px rgba(109,92,231,.1)}.conversation-list{overflow:auto;flex:1}.conversation{width:100%;border:0;background:transparent;display:flex;gap:11px;padding:13px 16px;text-align:left;cursor:pointer;border-left:3px solid transparent}.conversation:hover{background:#f8f8fc}.conversation.active{background:#f0efff;border-left-color:var(--purple)}.avatar{width:42px;height:42px;min-width:42px;border-radius:13px;background:linear-gradient(135deg,#344052,var(--navy2));color:#fff;display:grid;place-items:center;font-weight:750;font-size:12px}.conversation-copy{min-width:0;flex:1}.conversation-copy>span{display:flex;align-items:center;justify-content:space-between;gap:8px;height:21px}.conversation-copy strong,.conversation-copy small{white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.conversation-copy strong{font-size:13px}.conversation-copy small{color:var(--muted);font-size:11px}.conversation-copy time{font-size:9px;color:#a1a7b3}.conversation-copy b{background:var(--purple);color:#fff;border-radius:20px;min-width:19px;height:19px;display:grid;place-items:center;font-size:9px}.no-results{padding:30px;text-align:center;color:var(--muted);font-size:13px}.chat{min-width:0;position:relative;background:radial-gradient(circle at 80% 0,rgba(109,92,231,.055),transparent 30%),#f5f6f8}.empty-state{height:100%;display:grid;place-content:center;text-align:center;color:var(--muted)}.empty-state h2{color:var(--ink);margin:12px 0 4px;font-size:20px}.empty-state p{margin:0}.empty-icon{margin:auto;width:58px;height:58px;border-radius:20px;background:#ece9ff;color:var(--purple);display:grid;place-items:center;font-size:28px}.active-chat{height:100%;display:flex;flex-direction:column}.chat-header{height:84px;padding:0 24px;background:rgba(255,255,255,.96);display:flex;align-items:center;gap:12px;border-bottom:1px solid var(--line)}.chat-header strong,.chat-header small{display:block}.chat-header small{color:var(--muted);font-size:11px;margin-top:3px}.online-dot{width:7px;height:7px;border-radius:50%;background:#22c55e;margin-left:auto}.tag{font-size:10px;background:#fff2d8;color:#9a6511;padding:6px 9px;border-radius:8px;font-weight:700}.bot-toggle,.more-button{border:1px solid var(--line);background:#fff;border-radius:9px;padding:7px 10px;font-size:11px;cursor:pointer;color:#697184}.bot-toggle i{display:inline-block;width:7px;height:7px;background:#c5c9d1;border-radius:50%;margin-right:4px}.bot-toggle.enabled{color:#078a62;background:#e8faf4;border-color:#bcebdc}.bot-toggle.enabled i{background:#12b981}.more-button{font-weight:800}.back{display:none;border:0;background:none;font-size:28px}.messages{flex:1;overflow:auto;padding:28px clamp(20px,5vw,68px);display:flex;flex-direction:column;gap:9px}.bubble{max-width:min(680px,75%);border-radius:16px;padding:11px 14px;box-shadow:0 2px 8px rgba(30,45,55,.05)}.bubble p{margin:0;white-space:pre-wrap;overflow-wrap:anywhere;line-height:1.45;font-size:14px}.bubble footer{text-align:right;margin-top:5px;font-size:9px;color:#82909b}.bubble.in{background:#fff;align-self:flex-start;border-bottom-left-radius:4px}.bubble.out{background:#e9e6ff;align-self:flex-end;border-bottom-right-radius:4px}.bubble.out footer span{color:var(--purple);margin-left:3px}.quick-replies{background:#fff;padding:9px clamp(20px,5vw,68px) 0;display:flex;gap:7px;align-items:center;overflow:auto}.quick-replies span{font-size:10px;color:var(--muted);white-space:nowrap}.quick-replies button{white-space:nowrap;border:1px solid #dedbf8;background:#f8f7ff;color:#5c4dcc;border-radius:14px;padding:5px 9px;font-size:10px;cursor:pointer}.composer{display:flex;align-items:flex-end;gap:9px;padding:11px clamp(20px,5vw,68px) 17px;background:#fff}.composer textarea{resize:none;flex:1;border:1px solid var(--line);border-radius:13px;padding:12px 14px;outline:none;max-height:130px}.composer textarea:focus{border-color:var(--purple)}.composer button,.login-card button{border:0;background:var(--purple);color:white;border-radius:12px;cursor:pointer;font-weight:700}.composer button{height:44px;width:46px;font-size:16px}.composer button.attach{background:#f0f1f5;color:#697184;font-size:21px}.login{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(circle at 20% 20%,rgba(139,124,243,.22),transparent 32%),var(--navy)}.login-card{background:white;border-radius:22px;padding:34px;width:min(390px,100%);box-shadow:var(--shadow)}.brand-mark{width:48px;height:48px;border-radius:15px;background:var(--purple);color:#fff;display:grid;place-items:center;font-weight:900}.login-card h1{font-size:24px;margin:20px 0 5px}.login-card p{color:var(--muted);font-size:14px;margin:0 0 24px}.login-card label{display:block;font-size:12px;font-weight:700;margin:13px 0}.login-card input{display:block;width:100%;margin-top:6px;border:1px solid var(--line);border-radius:11px;padding:12px}.login-card button{width:100%;padding:13px;margin-top:8px}.error{display:block;color:#c24141;font-size:12px;margin-top:12px}.toast{position:fixed;right:22px;bottom:22px;background:#202636;color:white;padding:12px 18px;border-radius:10px;opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s;z-index:10}.toast.show{opacity:1;transform:none}@media(max-width:900px){.app{grid-template-columns:68px 310px 1fr}.rail-link small{display:none}.rail-link{height:48px}.rail-brand{width:42px;height:42px}}@media(max-width:760px){.app{display:block}.rail{display:none}.sidebar,.chat{height:100vh}.chat{display:none}.app.chat-open .sidebar{display:none}.app.chat-open .chat{display:block}.back{display:block}.chat-header{height:74px;padding:0 12px}.chat-header .tag,.more-button{display:none}.messages{padding:20px 14px}.quick-replies{padding-left:14px}.composer{padding:10px 14px}.bubble{max-width:86%}}