:root{--bg:#171c25;--panel:#1d2430;--panel2:#242d3a;--line:#303949;--muted:#8993a5;--text:#edf0f7;--purple:#9870f5;--purple2:#8058df;--green:#36c98b}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--text);font:15px/1.45 Inter,ui-sans-serif,system-ui,-apple-system,"Segoe UI",sans-serif}button,input,textarea{font:inherit}button,a{ -webkit-tap-highlight-color:transparent}a{color:#b8a0ff;text-decoration:none}.auth-body{min-height:100vh;display:grid;place-items:center;padding:24px;background:radial-gradient(ellipse at 50% 0,#30264c 0,transparent 55%),var(--bg)}.auth-card{width:min(100%,430px);padding:34px;background:#202735;border:1px solid #394153;border-radius:22px;box-shadow:0 24px 80px #0006}.brand{display:flex;align-items:center;gap:12px;color:white;font-weight:800;font-size:20px;margin-bottom:28px}.brand-mark,.rail-logo,.welcome-icon{display:grid;place-items:center;background:var(--purple);color:white;border-radius:15px;width:48px;height:48px;font-size:25px;font-weight:900}.auth-card h1{font-size:28px;margin:0 0 5px}.muted{color:var(--muted);margin:0 0 24px}label{display:block;color:#c4ccda;margin:14px 0 7px;font-size:13px}.auth-card input{width:100%;padding:13px 14px;border-radius:11px;border:1px solid #3a4557;background:#171e29;color:white;outline:none}.auth-card input:focus,.search-wrap:focus-within,.compose-box:focus-within{border-color:var(--purple);box-shadow:0 0 0 2px #9870f522}.primary,.button{border:0;background:var(--purple);color:white;border-radius:12px;padding:13px 18px;font-weight:700;cursor:pointer;display:inline-flex;justify-content:center}.primary:hover{background:var(--purple2)}.full{width:100%;margin-top:22px}.auth-foot{text-align:center;color:var(--muted);font-size:14px;margin:22px 0 0}.alert{padding:12px;border-radius:10px;margin:14px 0}.error{background:#552d38;color:#ffc8d1}.success{background:#174c3b;color:#b9ffdf}.app-shell{height:100dvh;display:grid;grid-template-columns:86px 484px minmax(0,1fr);overflow:hidden;background:#171c25}.rail{background:#1a202a;border-right:1px solid var(--line);display:flex;align-items:center;flex-direction:column;gap:10px;padding:12px 8px}.rail-logo{margin-bottom:8px}.rail-btn{width:64px;height:62px;border:0;border-radius:14px;background:transparent;color:#a5afbf;font-size:26px;display:grid;place-items:center;cursor:pointer}.rail-btn.active,.rail-btn:hover{background:#302a49;color:#b59aff}.rail-bottom{margin-top:auto}.avatar{width:48px;height:48px;border-radius:50%;background:#8c6be8;color:white;display:grid;place-items:center;font-weight:800;font-size:18px;flex:none}.avatar.self{background:#37475c}.sidebar{background:#1d2430;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}.side-head,.chat-head{height:74px;display:flex;align-items:center;justify-content:space-between;padding:0 22px;border-bottom:1px solid var(--line)}.side-head h2,.chat-head h2{font-size:20px;margin:0}.icon-btn{border:0;background:transparent;color:#aeb7c7;font-size:25px;cursor:pointer;width:40px;height:40px;border-radius:50%}.icon-btn:hover{background:#303949}.search-wrap{margin:16px 20px 12px;height:54px;border:1px solid #3a4555;border-radius:15px;display:flex;align-items:center;padding:0 14px;gap:10px;color:#8e99ab;font-size:24px}.search-wrap input{border:0;outline:0;background:transparent;color:white;width:100%;font-size:15px}.filter-row{display:flex;gap:10px;padding:0 20px 12px;border-bottom:1px solid var(--line)}.filter{border:0;background:transparent;color:#aab4c4;padding:9px 14px;border-radius:12px;cursor:pointer}.filter.active{background:#322a4c;color:#c4adff}.user-list{overflow:auto;flex:1;padding:6px 8px}.user-item{width:100%;display:flex;gap:13px;align-items:center;padding:12px;border:0;border-radius:12px;background:transparent;color:inherit;text-align:left;cursor:pointer}.user-item:hover,.user-item.active{background:#293342}.user-item.active{border-left:3px solid var(--purple);padding-left:9px}.user-meta{min-width:0;flex:1}.user-name{font-weight:700;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.user-sub{color:var(--muted);font-size:13px;margin-top:3px}.online-dot,.status-dot{width:9px;height:9px;border-radius:50%;background:var(--green);display:inline-block}.offline-dot{width:9px;height:9px;border-radius:50%;background:#667184;display:inline-block}.side-footer{padding:13px 18px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);display:flex;gap:7px;align-items:center}.side-footer a{margin-left:auto}.chat-panel{min-width:0;display:flex;flex-direction:column;background:radial-gradient(ellipse at 80% 30%,#25253a 0,transparent 45%),#171d28}.chat-head{background:#1d2430}.peer-info{display:flex;align-items:center;gap:13px}.peer-info h2{font-size:18px}.peer-info p{margin:1px 0 0;color:var(--muted);font-size:13px}.avatar.large{width:48px;height:48px}.head-actions{display:flex;gap:10px}.welcome{margin:auto;text-align:center;padding:25px;color:var(--muted)}.welcome-icon{width:76px;height:76px;border-radius:24px;margin:0 auto 20px;font-size:38px}.welcome h2{color:#e9eaf2}.conversation{min-height:0;flex:1;display:flex;flex-direction:column}.hidden{display:none!important}.messages{flex:1;overflow:auto;padding:26px clamp(16px,5vw,70px);display:flex;flex-direction:column;gap:14px}.message-row{display:flex;max-width:75%;gap:8px;align-items:flex-end}.message-row.mine{align-self:flex-end;flex-direction:row-reverse}.bubble{padding:11px 14px;border-radius:18px;background:#293341;min-width:80px;overflow-wrap:anywhere;box-shadow:0 3px 10px #0001}.mine .bubble{background:#8661e6;border-bottom-right-radius:5px}.message-row:not(.mine) .bubble{border-bottom-left-radius:5px}.msg-time{font-size:10px;color:#bdc4d1;text-align:right;margin-top:5px}.attachment{display:block;margin-top:7px;max-width:min(420px,60vw);border-radius:12px;overflow:hidden}.attachment img,.attachment video{max-width:100%;max-height:320px;display:block}.attachment audio{max-width:100%}.file-card{display:flex;align-items:center;gap:10px;padding:12px;background:#ffffff18;border-radius:10px;color:white;min-width:190px}.file-icon{font-size:25px}.composer{display:flex;align-items:flex-end;gap:12px;padding:14px 22px 5px;border-top:1px solid #ffffff08}.attach-btn{width:42px;height:46px;display:grid;place-items:center;color:#aeb8c8;font-size:28px;cursor:pointer}.compose-box{flex:1;border:1px solid #514477;border-radius:24px;background:#1b2230;padding:8px 14px;min-width:0}.compose-box textarea{width:100%;resize:none;max-height:120px;border:0;outline:0;background:transparent;color:white;padding:4px 0}.send-btn{width:48px;height:48px;border:0;border-radius:50%;background:var(--purple);color:white;font-size:23px;cursor:pointer}.composer-note{text-align:center;color:#737f92;font-size:11px;padding:2px 0 8px}.file-preview{font-size:12px;color:#d7caff;padding:3px 0 8px}.file-preview button{margin-left:8px;background:none;color:#ffb7c5;border:0;cursor:pointer}.empty{padding:24px;text-align:center;color:var(--muted)}.bottom-nav{display:none}
@media(max-width:900px){.app-shell{grid-template-columns:70px 330px minmax(0,1fr)}.rail-btn{width:54px}.messages{padding:20px}.message-row{max-width:88%}}
@media(max-width:650px){.app-shell{height:100dvh;display:block;position:relative}.rail{display:none}.sidebar{height:calc(100dvh - 66px);width:100%;border:0}.side-head{height:62px;padding:0 17px}.search-wrap{margin:12px 14px 9px;height:46px}.filter-row{padding:0 14px 8px}.user-list{padding:5px 8px}.user-item{padding:10px}.chat-panel{display:none;position:absolute;inset:0 0 66px 0;z-index:3}.app-shell.chat-open .sidebar{display:none}.app-shell.chat-open .chat-panel{display:flex}.chat-head{height:64px;padding:0 12px}.chat-head h2{font-size:16px}.peer-info{gap:9px}.head-actions{gap:0}.head-actions #search-chat{display:none}.messages{padding:16px 12px}.message-row{max-width:92%}.bubble{padding:10px 12px}.attachment{max-width:70vw}.composer{padding:10px 8px 2px;gap:5px}.attach-btn{width:34px}.send-btn{width:43px;height:43px}.composer-note{padding-bottom:5px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;height:66px;padding-bottom:env(safe-area-inset-bottom);display:flex;justify-content:space-around;align-items:center;background:#1d2430;border-top:1px solid var(--line);z-index:5}.bottom-nav button,.bottom-nav a{height:100%;flex:1;border:0;background:transparent;color:#8994a6;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:2px;font-size:11px}.bottom-nav span{font-size:21px}.bottom-nav .active{color:#b79cff}.welcome{padding:20px}.auth-card{padding:26px 22px}}