:root{--brand:#6c63ff;--ink:#202034;--muted:#84849a;--line:#ececf4;--bg:#f7f7fb;--mine:#6c63ff}*{box-sizing:border-box}body{margin:0;font:14px Poppins,Arial,sans-serif;color:var(--ink);background:var(--bg)}button,input{font:inherit}button{border:0;cursor:pointer}.app{display:grid;grid-template-columns:340px 1fr;height:100dvh;max-width:1600px;margin:auto;background:#fff;box-shadow:0 0 60px #29285a0d}.sidebar{border-right:1px solid var(--line);overflow:auto;background:#fff}.sidebar header,.chat-head{height:82px;display:flex;align-items:center;padding:16px 20px;border-bottom:1px solid var(--line);justify-content:space-between}.me,.contact{display:flex;align-items:center;gap:11px}.me img,.chat-item img,.avatar-wrap img{width:43px;height:43px;border-radius:50%;object-fit:cover;background:#eee}.me small,.contact small{display:block;color:var(--muted);font-size:11px}.sidebar header>a{font-size:21px;text-decoration:none;color:var(--muted)}.search{display:flex;align-items:center;gap:8px;margin:15px;border:1px solid transparent;border-radius:12px;background:var(--bg);padding:0 12px;color:var(--muted)}.search:focus-within{border-color:#c8c5ff;background:#fff}.search input{width:100%;padding:11px 0;border:0;outline:0;background:transparent}.side-title{padding:10px 18px;display:flex;justify-content:space-between;align-items:center;font-weight:600}.side-title button{border-radius:8px;background:#efeeff;color:var(--brand);font-size:20px;width:30px;height:30px}.chat-item{width:100%;background:white;padding:12px 17px;display:flex;gap:11px;text-align:left;position:relative}.chat-item:hover,.chat-item.active{background:#f5f4ff}.chat-item .text{min-width:0;flex:1}.chat-item b,.chat-item p{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin:0}.chat-item p{font-size:12px;color:var(--muted);margin-top:3px}.chat-item time{font-size:10px;color:var(--muted)}.badge{background:var(--brand);color:#fff;border-radius:12px;font-size:10px;padding:2px 6px}.online{position:absolute;width:10px;height:10px;border-radius:50%;background:#38c99b;border:2px solid #fff;left:49px;top:43px}.search-results{max-height:220px;overflow:auto}.search-results:empty{display:none}.result{padding:10px 17px;display:flex;gap:10px;align-items:center;cursor:pointer}.result:hover{background:#f5f4ff}.result img{width:34px;height:34px;border-radius:50%}.result small{color:var(--muted);display:block}.chat{min-width:0;display:flex;flex-direction:column;position:relative;background:linear-gradient(120deg,#fff,#fafaff)}.chat.empty .composer,.chat.empty .head-actions{visibility:hidden}.chat-head{flex:none}.back{display:none}.contact{flex:1}.avatar-wrap{position:relative}.avatar-wrap i{display:none;position:absolute;width:10px;height:10px;border-radius:50%;background:#38c99b;right:0;bottom:2px;border:2px solid white}.avatar-wrap i.show{display:block}.head-actions{display:flex;gap:4px}.icon{background:transparent;color:#68677b;font-size:20px;width:38px;height:38px;border-radius:10px}.icon:hover{background:#f1f0fa;color:var(--brand)}.messages{flex:1;overflow:auto;padding:25px clamp(18px,4vw,65px);display:flex;flex-direction:column;gap:9px;background-image:radial-gradient(#6c63ff0a 1px,transparent 1px);background-size:20px 20px}.empty-state{margin:auto;text-align:center;color:var(--muted);max-width:350px}.empty-state>div{font-size:48px;color:var(--brand)}.empty-state h2{color:var(--ink);font-size:20px}.bubble{max-width:min(76%,570px);padding:9px 12px;border-radius:16px 16px 16px 4px;background:#fff;box-shadow:0 2px 8px #35336f0d;align-self:flex-start;line-height:1.45;position:relative}.bubble.mine{align-self:flex-end;background:var(--mine);color:#fff;border-radius:16px 16px 4px}.bubble .meta{font-size:10px;opacity:.65;text-align:right;margin-top:4px}.bubble img,.bubble video{max-width:100%;border-radius:10px;display:block}.bubble audio{max-width:100%}.bubble .attachment{display:block;padding:7px;background:#ffffff24;border-radius:8px;color:inherit;text-decoration:none}.reactions{display:flex;gap:3px;position:absolute;bottom:-13px;left:5px}.reaction{font-size:11px;background:#fff;color:#333;border:1px solid #eee;border-radius:12px;padding:1px 5px}.typing{height:0;padding:0 25px;color:var(--muted);font-size:11px;overflow:hidden}.typing.show{height:22px}.reply{display:none;border-top:1px solid var(--line);padding:6px 20px;background:#fff;color:var(--muted)}.reply.show{display:flex;justify-content:space-between}.reply button{background:none;font-size:18px}.composer{display:flex;align-items:center;gap:2px;padding:12px 17px;border-top:1px solid var(--line);background:#fff}.composer input{border:0;background:#f6f6fb;border-radius:22px;min-width:0;flex:1;padding:11px 15px;outline:none}.send{border-radius:50%;background:var(--brand);color:#fff;width:39px;height:39px;font-size:17px}.emoji-panel{position:absolute;right:78px;bottom:70px;background:#fff;border:1px solid var(--line);padding:10px;border-radius:12px;box-shadow:0 12px 30px #25234b22;max-width:260px;display:none;font-size:20px;word-spacing:6px;cursor:pointer}.emoji-panel.show{display:block}.modal{display:none;position:fixed;inset:0;background:#000d;z-index:4;place-items:center;padding:25px}.modal.show{display:grid}.modal img,.modal video{max-width:100%;max-height:90vh}.modal button{position:absolute;right:20px;top:15px;background:none;color:#fff;font-size:34px}.auth{min-height:100dvh;display:grid;place-items:center;background:linear-gradient(135deg,#eeedff,#fafaff)}.auth-card{background:#fff;width:min(440px,calc(100% - 32px));padding:45px;border-radius:25px;box-shadow:0 18px 60px #3c397926}.brand{font-weight:700;font-size:20px;text-decoration:none;color:var(--ink)}.brand span{color:var(--brand)}.auth h1{font-size:26px;margin:38px 0 3px}.auth p{color:var(--muted);font-size:13px}.auth form{display:grid;gap:11px;margin-top:25px}.auth input{border:1px solid var(--line);border-radius:10px;padding:12px;outline:0}.auth input:focus{border-color:var(--brand)}.auth form button{background:var(--brand);color:#fff;border-radius:10px;padding:13px;font-weight:600;margin-top:4px}.forgot{color:var(--brand);font-size:12px;text-align:right}.switch{text-align:center;margin-top:24px}.switch a{color:var(--brand);font-weight:600;text-decoration:none}#toast{position:fixed;left:50%;bottom:25px;transform:translate(-50%,20px);background:#27263a;color:#fff;padding:11px 16px;border-radius:9px;opacity:0;transition:.25s;z-index:9;pointer-events:none}.show{opacity:1!important;transform:translate(-50%,0)!important}.skeleton{height:64px;margin:10px 17px;border-radius:12px;background:linear-gradient(90deg,#f4f4f8,#fafafe,#f4f4f8);background-size:200%;animation:load 1s infinite}@keyframes load{to{background-position:-200%}}
@media(max-width:700px){.app{display:block}.sidebar{width:100%;height:100dvh;border:0}.chat{display:none;height:100dvh}.app.chat-open .sidebar{display:none}.app.chat-open .chat{display:flex}.back{display:block}.messages{padding:18px}.chat-head{height:68px;padding:10px}.composer{padding:9px}.bubble{max-width:84%}.auth-card{padding:32px 25px}.chat-item{padding:14px 18px}}