:root{--bg:#0b0e13;--panel:#10151c;--card:#141a23;--line:#29313d;--txt:#f4f7fb;--mut:#94a0b1;--acc:#dce4ff;--ok:#77d69c}
*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--txt);font:14px/1.45 system-ui,-apple-system,Segoe UI,Arial}
button,input{font:inherit}
.hidden,[hidden]{display:none!important}
.muted{color:var(--mut)}.sub{color:var(--mut);font-size:12px}
.btn{border:1px solid #303947;background:#1b2330;color:#fff;border-radius:10px;padding:9px 13px;cursor:pointer}
.btn:hover{background:#222b3a}
.btn.primary{background:var(--acc);color:#111722;font-weight:700;border-color:var(--acc)}
.btn.line{background:transparent}
.btn.ghost{background:transparent;border-color:transparent;color:var(--mut)}
.btn.block{width:100%;display:block}
.err{background:#3a1b1f;border:1px solid #7b3b42;color:#ffbcc4;border-radius:10px;padding:9px 12px;margin-bottom:12px;font-size:13px}

/* ---- auth ---- */
.auth{min-height:100vh;display:grid;place-items:center;padding:20px}
.auth-card{width:min(440px,100%);background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px}
.brand-big{font-weight:800;letter-spacing:1px;font-size:20px;margin-bottom:4px}
.field{margin:10px 0}
.field label{display:block;font-size:12px;color:var(--mut);margin-bottom:4px}
.field input{width:100%;background:#0e131a;border:1px solid #303947;border-radius:10px;padding:11px;color:#fff}
.tabs2{display:flex;gap:8px;margin:14px 0 6px}
.tabs2 button{flex:1;padding:9px;border-radius:10px;border:1px solid var(--line);background:transparent;color:var(--mut);cursor:pointer}
.tabs2 button.on{background:#1c2430;color:#fff}
.hr{text-align:center;color:var(--mut);font-size:12px;margin:14px 0}
.note{margin-top:14px;font-size:12px;color:#b8d8c3;background:#142019;border:1px solid #304738;border-radius:12px;padding:10px}

/* ---- app ---- */
.app{min-height:100vh;display:grid;grid-template-columns:280px 1fr}
.side{background:var(--panel);border-right:1px solid var(--line);padding:16px;display:flex;flex-direction:column;gap:12px}
.brand{font-weight:800;font-size:18px}
.side-block{flex:1;overflow:auto}
.side-title{color:var(--mut);font-size:11px;text-transform:uppercase;letter-spacing:.6px;margin:6px 0}
.spaces button,.conv-list button{display:block;width:100%;text-align:left;padding:10px;border-radius:10px;border:1px solid transparent;background:transparent;color:#d6dce6;cursor:pointer;margin:2px 0}
.spaces button.on,.conv-list button.on{background:#1c2430;border-color:#2b3646}
.privacy{margin-top:auto;padding:10px;border:1px solid #304738;border-radius:12px;background:#142019;color:#b8d8c3;font-size:12px}
.side-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--line);padding-top:10px}

.main{display:flex;flex-direction:column;min-width:0}
.top{height:60px;border-bottom:1px solid var(--line);padding:0 16px;display:flex;align-items:center;justify-content:space-between;gap:12px}
.top-actions{display:flex;align-items:center;gap:10px}
.conn{font-size:12px;color:var(--mut)}
.conn.on{color:var(--ok)}
.content{display:grid;grid-template-columns:260px 1fr;flex:1;min-height:0}
.chats-col{border-right:1px solid var(--line);padding:12px;overflow:auto}
.chats-head{color:var(--mut);font-size:11px;text-transform:uppercase;letter-spacing:.6px;margin:10px 0 6px}
.members button{display:flex;justify-content:space-between;width:100%;padding:9px;border-radius:10px;background:transparent;border:0;color:#d6dce6;cursor:pointer}
.members button:hover{background:#1c2430}
.members .m{display:flex;gap:6px;align-items:center}
.members .mhint{font-size:11px;color:var(--mut)}
.chat-col{display:flex;flex-direction:column;min-width:0}
.chat-head{padding:14px 16px;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;align-items:baseline;gap:10px}
.msgs{flex:1;overflow:auto;padding:16px;display:flex;flex-direction:column;gap:8px}
.msg{max-width:74%;background:#222b38;padding:9px 12px;border-radius:14px}
.msg.me{align-self:flex-end;background:#2b3a62}
.msg .who{font-size:11px;color:#b9c6d8;margin-bottom:2px}
.msg .t{font-size:10px;color:#93a0b3;margin-top:3px;text-align:right}
.composer{display:flex;gap:8px;padding:12px;border-top:1px solid var(--line)}
.composer input{flex:1;background:#0e131a;border:1px solid #303947;border-radius:10px;padding:11px;color:#fff}
.empty{color:var(--mut);font-size:13px;padding:10px}

/* ---- modal/toasts ---- */
.overlay{position:fixed;inset:0;background:#000b;display:none;align-items:center;justify-content:center;padding:16px;z-index:50}
.overlay.on{display:flex}
.modal{width:min(460px,100%);background:#161d27;border:1px solid #303947;border-radius:18px;padding:18px}
.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.modal-head .x{background:transparent;border:0;color:var(--mut);font-size:22px;cursor:pointer}
.modal-foot{display:flex;gap:8px;justify-content:flex-end;margin-top:14px}
#toasts{position:fixed;right:14px;bottom:14px;display:flex;flex-direction:column;gap:8px;z-index:60}
.toast{background:#1b2330;border:1px solid #303947;border-radius:10px;padding:10px 13px;font-size:13px}
.toast.ok{border-color:#2f6b45}.toast.bad{border-color:#7b3b42}
.only-mobile{display:none}

/* ---- звонки ---- */
.call-btns{display:flex;gap:6px}
.callov{position:fixed;inset:0;background:#05080dF2;display:none;align-items:center;justify-content:center;z-index:70;padding:16px}
.callov.on{display:flex}
.callbox{width:min(760px,100%);background:#101720;border:1px solid #303947;border-radius:20px;padding:16px;text-align:center}
.callbox.small{width:min(420px,100%)}
.vwrap{position:relative;background:#070b11;border-radius:14px;overflow:hidden;aspect-ratio:16/10;margin-bottom:12px}
.vwrap video{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#070b11}
#local-video{left:auto;top:auto;right:10px;bottom:10px;width:26%;height:auto;border:1px solid #303947;border-radius:10px;object-fit:cover}
.callinfo{display:flex;justify-content:center;align-items:baseline;gap:10px;margin-bottom:12px}
.callctrl{display:flex;gap:8px;justify-content:center;flex-wrap:wrap}
.btn.off{opacity:.45}
@media(max-width:820px){
  .app{grid-template-columns:1fr}
  .side{display:none}
  .app.menu .side{display:flex;position:fixed;inset:0 auto 0 0;width:280px;z-index:40}
  .content{grid-template-columns:1fr}
  .chats-col{display:none;padding-bottom:40px}
  .content.showlist .chat-col{display:none}
  .content.showlist .chats-col{display:block}
  .only-mobile{display:inline-block}
}