*{box-sizing:border-box}body{margin:0;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Arial;background:#f5f7fb;color:#172033}button,input{font:inherit}button{border:0;cursor:pointer}.app{min-height:100vh;display:grid;grid-template-columns:230px 310px 1fr;background:#fff}.app.dark{background:#101522;color:#eef2ff}.app.dark aside,.app.dark .users,.app.dark main,.app.dark header{background:#151b2b;border-color:#273149}.app.dark input,.app.dark .composer,.app.dark .search,.app.dark .settings-card,.app.dark .room-card{background:#20283b;color:#fff;border-color:#303a52}.app.dark .bubble{background:#263149}.app.dark .mine{background:#5b4fe7}.app.dark .modal-card,.app.dark .notification-panel{background:#171e30;color:#eef2ff}.app.dark .notification{border-color:#303a52}.app.dark .theme button{background:#20283b;color:#fff}aside,.users{border-right:1px solid #e7ebf2;padding:20px;background:#fbfcfe;min-width:0}.brand{font-weight:900;font-size:27px;letter-spacing:-1px;margin-bottom:30px}.brand span{color:#6d5dfc}nav{display:grid;gap:7px}.nav{position:relative;width:100%;display:flex;gap:12px;align-items:center;padding:11px;border-radius:12px;color:#697386;background:transparent;text-align:left}.nav.active{background:#eeeaff;color:#5748e8;font-weight:700}.nav em{margin-left:auto;background:#e5484d;color:#fff;border-radius:999px;font-size:10px;padding:2px 6px;font-style:normal}.side-section{margin-top:25px}.side-title{display:flex;justify-content:space-between;align-items:center;font-size:12px;text-transform:uppercase;color:#8a92a4;margin-bottom:7px}.side-title button{background:#eeeaff;color:#5748e8;border-radius:7px;padding:5px}.room-link{width:100%;display:flex;gap:8px;align-items:center;text-align:left;padding:9px;border-radius:9px;background:transparent}.room-link.selected,.room-link:hover{background:#eeeaff;color:#5748e8}.profile{position:fixed;bottom:18px;width:190px;display:flex;align-items:center;gap:9px}.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:#ddd6fe;color:#5145cd;font-weight:800;flex:none}.profile small,.usertext small,.history-item small,.room-card small{display:block;color:#8992a5;font-size:12px;margin-top:3px}.profile button{margin-left:auto;background:transparent;color:#778096}.head,header{display:flex;justify-content:space-between;align-items:center}.head h2{font-size:20px}.head-actions{display:flex;gap:7px}.icon-btn{position:relative;background:#eeeaff;color:#5748e8;border-radius:9px;padding:8px;display:grid;place-items:center}.icon-btn svg{width:18px}.badge{position:absolute;right:-5px;top:-5px;background:#e5484d;color:#fff;border-radius:999px;font-size:9px;min-width:16px;height:16px;display:grid;place-items:center;padding:0 4px}.search{display:flex;align-items:center;gap:8px;background:#f1f3f7;padding:9px 11px;border-radius:10px;margin-bottom:12px}.search input{border:0;background:transparent;outline:0;width:100%}.user{width:100%;display:flex;align-items:center;gap:10px;padding:10px;border-radius:12px;background:transparent;text-align:left}.user:hover,.user.selected{background:#f0efff}.usertext{flex:1}.user i{width:8px;height:8px;border-radius:50%;background:#c6cad3}.user i.online{background:#31c48d}main{display:flex;flex-direction:column;min-width:0;background:#fff}header{height:75px;padding:16px 22px;border-bottom:1px solid #e7ebf2}.actions{display:flex;gap:8px}.actions button{background:transparent;color:#6256e8;border-radius:9px;padding:8px}.block-muted{display:block;color:#8992a5;font-size:12px;margin-top:3px}.chat{flex:1;padding:25px;overflow:auto;display:flex;flex-direction:column;gap:10px}.bubble{align-self:flex-start;background:#f0f2f6;padding:10px 14px;border-radius:16px 16px 16px 4px;max-width:65%;word-break:break-word}.bubble.mine{align-self:flex-end;background:#6256e8;color:#fff;border-radius:16px 16px 4px}.bubble small{display:block;font-size:10px;opacity:.7;margin-bottom:3px}.typing{font-size:12px;color:#8992a5}.composer{margin:0 20px 20px;display:flex;gap:10px;padding:8px;background:#f2f4f8;border-radius:14px}.composer input{flex:1;border:0;outline:0;background:transparent;padding:10px}.composer button{background:#6256e8;color:#fff;border-radius:10px;padding:9px}.empty{margin:auto;text-align:center;color:#8790a4;padding:30px}.auth{min-height:100vh;display:grid;place-items:center;background:radial-gradient(circle at top,#ece8ff,#f7f8fc 50%)}.auth-card{width:min(430px,92vw);background:#fff;border:1px solid #e8eaf0;border-radius:24px;padding:36px;box-shadow:0 25px 70px #2d245f18}.auth-card h1{margin-bottom:5px}.auth-card form{display:grid;gap:12px;margin-top:25px}.auth-card input,.modal-card input,.settings-card input{padding:13px;border:1px solid #dfe3eb;border-radius:10px;outline:0;width:100%;background:#fff}.primary{padding:11px 16px;background:#6256e8;color:#fff;border-radius:10px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:7px}.secondary{padding:11px 16px;background:#eef0f5;border-radius:10px;display:inline-flex;gap:7px;align-items:center}.link{background:none;color:#6256e8;margin-top:18px}.muted{color:#8992a5}.error{color:#d33;font-size:13px}.call{position:fixed;top:0;right:0;bottom:0;left:0;z-index:100;background:#090d16;display:flex;flex-direction:column}.videos{position:relative;flex:1;display:grid;place-items:center;min-height:0}.remote{width:100%;height:100%;object-fit:cover}.local{position:absolute;right:24px;bottom:24px;width:220px;height:150px;object-fit:cover;border-radius:14px;border:2px solid white;background:#111}.callstate{position:absolute;top:25px;left:50%;transform:translate(-50%);color:#fff;font-size:16px;background:#0008;padding:8px 13px;border-radius:20px;white-space:nowrap}.callbar{height:90px;display:flex;justify-content:center;align-items:center;gap:15px}.callbar button{width:50px;height:50px;border-radius:50%;display:grid;place-items:center;background:#252d3e;color:#fff}.callbar .danger,.danger-btn{background:#e5484d;color:#fff}.modal{position:fixed;top:0;right:0;bottom:0;left:0;z-index:200;background:#10152299;display:grid;place-items:center;padding:20px}.modal-card{width:min(430px,94vw);background:#fff;border-radius:18px;padding:25px;box-shadow:0 20px 70px #0003}.modal-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:18px}.modal-actions button{padding:10px 15px;border-radius:10px}.danger-btn{display:flex;gap:6px;align-items:center}.peer-grid{width:100%;height:100%;display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:8px;padding:15px}.peer-media{width:100%;height:100%;min-height:220px;object-fit:cover;background:#111;border-radius:10px}.room-videos .local{z-index:3}.member-list{max-height:280px;overflow:auto;margin-top:12px}.member-list button{width:100%;display:flex;align-items:center;gap:10px;background:transparent;padding:9px;border-radius:10px;text-align:left}.member-list button:hover{background:#f1f2f7}.member-list button>svg{margin-left:auto;color:#6256e8}.member-list small{display:block;color:#8992a5;font-size:12px;margin-top:2px}.call-history{overflow:auto}.history-item{display:flex;align-items:center;gap:10px;padding:12px;border-bottom:1px solid #edf0f5}.history-item>div:nth-child(2){flex:1}.history-item>span{font-size:11px;color:#8992a5}.room-list-mobile{display:grid;gap:8px}.room-card{display:flex;align-items:center;gap:12px;width:100%;padding:13px;background:#fff;border:1px solid #e7ebf2;border-radius:12px;text-align:left}.room-card svg{color:#6256e8}.room-card div{flex:1}.empty-list{padding:25px;text-align:center;color:#8992a5}.settings-panel{display:grid;gap:15px;padding:20px;overflow:auto}.settings-card{background:#fff;border:1px solid #e5e9f0;border-radius:15px;padding:18px}.settings-card h3{margin-top:0}.settings-card form{display:grid;gap:12px}.settings-card label{display:grid;gap:6px;font-size:13px;color:#667085}.settings-card button{width:max-content}.notification-panel{position:fixed;right:18px;top:70px;width:min(370px,calc(100vw - 36px));max-height:70vh;overflow:auto;background:#fff;border:1px solid #e4e8ef;border-radius:15px;box-shadow:0 20px 60px #0002;z-index:180}.panel-head{display:flex;justify-content:space-between;padding:14px 16px;border-bottom:1px solid #e8ebf0}.panel-head button{background:transparent}.notification{padding:12px 16px;border-bottom:1px solid #edf0f5;display:grid;gap:3px}.notification[role=button]{cursor:pointer}.notification.unread{background:#f3f1ff}.notification span{font-size:13px}.notification small{color:#8992a5;font-size:10px}.read-all{width:100%;padding:10px;background:#f5f6fa;color:#5748e8}.toast{position:fixed;right:20px;bottom:20px;z-index:300;max-width:min(400px,calc(100vw - 40px));padding:13px 16px;border-radius:12px;background:#172033;color:#fff;box-shadow:0 15px 45px #0003;cursor:pointer}.toast.error{background:#b42318}.toast.call{background:#5748e8}.toast.room{background:#18794e}.mobile-nav,.mobile-back{display:none}.theme{position:fixed;right:18px;bottom:18px;z-index:50}.theme button{background:#fff;border:1px solid #e5e8ef;border-radius:50%;padding:10px;display:grid;place-items:center}.theme svg{width:18px}@media(max-width:900px){.app{grid-template-columns:75px 280px 1fr}aside{padding:15px}.brand{font-size:20px}.nav{justify-content:center}.nav span{font-size:0}.profile{width:45px}.profile>div:nth-child(2),.profile button{display:none}.side-section{display:none}}@media(max-width:650px){body{padding-bottom:65px}.app{display:block;min-height:calc(100vh - 65px)}.app aside{display:none}.users{display:block;border-right:0;min-height:calc(100vh - 65px);padding:14px 14px 80px}.users.mobile-hide-list{display:none}main{display:none;min-height:calc(100vh - 65px)}main.mobile-show-chat{display:flex}.mobile-nav{position:fixed;z-index:160;left:0;right:0;bottom:0;height:65px;background:#fff;border-top:1px solid #e5e8ef;display:grid;grid-template-columns:repeat(5,1fr);padding:4px 3px}.dark .mobile-nav{background:#151b2b;border-color:#273149}.mobile-nav .nav{padding:6px 2px;display:grid;place-items:center;gap:2px;font-size:9px;text-align:center}.mobile-nav .nav span{font-size:9px}.mobile-nav .nav svg{width:20px;height:20px}.mobile-nav .nav.active{background:#eeeaff}.head{margin-bottom:5px}header{height:65px;padding:12px 14px}.mobile-back{display:inline-flex;background:transparent;color:#6256e8;align-items:center;margin-right:6px;padding:3px}.actions{gap:2px}.chat{padding:16px 12px}.composer{margin:0 10px 10px}.bubble{max-width:85%}.local{width:125px;height:95px;right:12px;bottom:12px}.callstate{font-size:12px;max-width:80%;overflow:hidden;text-overflow:ellipsis}.peer-grid{grid-template-columns:1fr;padding:8px}.peer-media{min-height:150px}.notification-panel{right:8px;top:62px;width:calc(100vw - 16px)}.theme{right:10px;bottom:78px}.theme button,.settings-panel{padding:8px}.room-card{padding:12px}.auth-card{padding:26px}.toast{right:10px;bottom:78px}.empty{padding:20px}.users .search{margin-top:4px}}