:root{
  --bg:#0f1117;--bg2:#151824;--bg3:#1b1f2e;--line:#262b3d;
  --text:#e9ecf5;--muted:#8a91a8;--accent:#7c5cff;--accent2:#31d0ff;
  --me:#2b2360;--me2:#3a2a8a;--other:#1d2233;--danger:#ff5c7a;--ok:#3ddc97;
  --radius:16px;--shadow:0 12px 40px rgba(0,0,0,.45);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{height:100%;margin:0}
body{
  font:15px/1.45 -apple-system,"Segoe UI",Inter,Roboto,system-ui,sans-serif;
  color:var(--text);
  background:radial-gradient(900px 500px at -10% -10%,#221a4d 0,transparent 60%),
             radial-gradient(800px 500px at 110% 110%,#0f3350 0,transparent 55%),var(--bg);
  overflow:hidden;
}
.hidden{display:none!important}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit;color:var(--text);background:var(--bg3);border:1px solid var(--line);border-radius:12px;padding:11px 13px;outline:none;width:100%}
input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(124,92,255,.18)}
svg{width:22px;height:22px;fill:currentColor}
.icon{width:40px;height:40px;border-radius:12px;display:grid;place-items:center;color:var(--muted);transition:.15s}
.icon:hover{background:rgba(255,255,255,.06);color:var(--text)}
.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;border-radius:12px;padding:11px 18px;font-weight:600}
.primary.big{width:100%;padding:14px;font-size:16px;margin-top:6px}
.primary:hover{filter:brightness(1.08)}
.pill{background:var(--bg3);border:1px solid var(--line);border-radius:999px;padding:1px 8px;font-size:11px;color:var(--muted)}
.mini{width:22px;height:22px;border-radius:7px;background:var(--bg3);border:1px solid var(--line);color:var(--muted);font-size:15px;line-height:1}

/* avatar */
.avatar{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;font-weight:700;color:#fff;flex:none;text-transform:uppercase;font-size:15px}
.avatar.sm{width:32px;height:32px;font-size:13px}
.avatar.xl{width:110px;height:110px;font-size:42px;box-shadow:0 0 0 8px rgba(255,255,255,.06)}

/* login */
.login{height:100%;display:grid;place-items:center;padding:20px}
.login-card{width:100%;max-width:400px;background:rgba(21,24,36,.9);border:1px solid var(--line);border-radius:24px;padding:32px 28px;box-shadow:var(--shadow);backdrop-filter:blur(16px);animation:pop .35s ease}
@keyframes pop{from{transform:translateY(12px) scale(.97);opacity:0}to{transform:none;opacity:1}}
.logo{text-align:center;margin-bottom:22px}
.logo h1{margin:12px 0 4px;font-size:28px;letter-spacing:-.02em}
.logo p{margin:0;color:var(--muted);font-size:14px}
.field{margin-bottom:12px}
.field-label{display:block;font-size:12px;color:var(--muted);margin:0 0 6px 4px}

/* layout */
.app{height:100%;display:grid;grid-template-columns:290px 1fr}
.side{background:rgba(21,24,36,.85);border-right:1px solid var(--line);display:flex;flex-direction:column;min-height:0;backdrop-filter:blur(12px)}
.side-head{display:flex;align-items:center;gap:10px;padding:14px 14px 12px;border-bottom:1px solid var(--line)}
.me{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.me-nick{font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.me-status{font-size:12px;color:var(--muted)}
.me-status.ok{color:var(--ok)}.me-status.bad{color:var(--danger)}
.side-section{padding:12px 10px 6px}
.side-section.grow{flex:1;min-height:0;display:flex;flex-direction:column}
.side-title{display:flex;align-items:center;justify-content:space-between;font-size:12px;text-transform:uppercase;letter-spacing:.08em;color:var(--muted);padding:0 6px 8px}
.room-list,.user-list{display:flex;flex-direction:column;gap:2px}
.user-list{overflow:auto;flex:1;padding-bottom:10px}
.room{display:flex;align-items:center;justify-content:space-between;padding:9px 10px;border-radius:12px;color:var(--text);transition:.15s;width:100%;text-align:left}
.room:hover{background:rgba(255,255,255,.05)}
.room.on{background:linear-gradient(135deg,rgba(124,92,255,.35),rgba(49,208,255,.2));font-weight:600}
.room .cnt{font-size:11px;color:var(--muted)}
.user{display:flex;align-items:center;gap:10px;padding:7px 8px;border-radius:12px;width:100%;text-align:left}
.user:hover{background:rgba(255,255,255,.05)}
.user .n{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.user .dot{width:8px;height:8px;border-radius:50%;background:var(--ok)}
.user.me-row .n::after{content:" · ты";color:var(--muted);font-size:12px}

.chat{display:flex;flex-direction:column;min-height:0;position:relative}
.chat-head{display:flex;align-items:center;gap:10px;padding:10px 14px;border-bottom:1px solid var(--line);background:rgba(21,24,36,.7);backdrop-filter:blur(12px)}
.chat-title{flex:1;min-width:0}
.room-name{font-weight:700;font-size:17px}
.room-sub{font-size:12px;color:var(--accent2);min-height:16px}
.only-mobile{display:none}
.search-bar{display:flex;gap:6px;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--bg2)}

/* log */
.log{flex:1;overflow-y:auto;padding:16px 16px 8px;display:flex;flex-direction:column;gap:3px;scroll-behavior:smooth}
.day{align-self:center;background:rgba(0,0,0,.35);color:var(--muted);font-size:12px;padding:3px 12px;border-radius:999px;margin:10px 0 6px}
.sys{align-self:center;color:var(--muted);font-size:12px;padding:2px 10px}
.msg{display:flex;gap:8px;max-width:min(78%,680px);align-items:flex-end;animation:in .18s ease}
@keyframes in{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.msg.me{align-self:flex-end;flex-direction:row-reverse}
.msg .avatar{visibility:hidden}
.msg.first .avatar{visibility:visible}
.msg.me .avatar{display:none}
.bubble{position:relative;background:var(--other);padding:7px 12px 6px;border-radius:18px;border-bottom-left-radius:6px;word-break:break-word;white-space:pre-wrap;user-select:text;box-shadow:0 1px 2px rgba(0,0,0,.25)}
.msg.me .bubble{background:linear-gradient(135deg,var(--me2),var(--me));border-bottom-left-radius:18px;border-bottom-right-radius:6px}
.msg:not(.first) .bubble{border-radius:18px}
.msg.first .bubble{border-top-left-radius:18px}
.bubble .nick{font-size:13px;font-weight:600;margin-bottom:2px;display:block}
.msg.me .bubble .nick{display:none}
.bubble .t{display:inline-block;font-size:11px;color:rgba(255,255,255,.5);margin-left:8px;float:right;margin-top:6px;user-select:none}
.bubble .rp{border-left:3px solid var(--accent2);padding:3px 8px;margin:0 0 6px;background:rgba(0,0,0,.2);border-radius:8px;font-size:13px;cursor:pointer}
.bubble .rp b{color:var(--accent2);display:block;font-size:12px}
.bubble .rp span{color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;max-width:360px}
.bubble a{color:var(--accent2)}
.bubble.emoji-only{background:transparent!important;box-shadow:none;font-size:44px;line-height:1.1;padding:2px 4px}
.bubble.emoji-only .t{float:none;display:block;text-align:right;font-size:11px}
.msg.hl .bubble{outline:2px solid var(--accent2);outline-offset:2px}
.mention{color:var(--accent2);font-weight:600}
.to-bottom{position:absolute;right:18px;bottom:82px;width:40px;height:40px;border-radius:50%;background:var(--bg3);border:1px solid var(--line);color:var(--text);box-shadow:var(--shadow);font-size:18px}

/* reply + composer */
.reply-bar{display:flex;align-items:center;gap:10px;padding:8px 14px 0;background:var(--bg2)}
.reply-line{width:3px;height:36px;background:var(--accent2);border-radius:3px}
.reply-body{flex:1;min-width:0}
.reply-nick{color:var(--accent2);font-size:13px;font-weight:600}
.reply-text{color:var(--muted);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.composer{display:flex;align-items:flex-end;gap:6px;padding:10px 12px 12px;background:var(--bg2);border-top:1px solid var(--line)}
.composer textarea{resize:none;max-height:160px;border-radius:20px;padding:10px 14px;line-height:1.4}
.send{color:var(--accent2)}
.send:hover{background:rgba(49,208,255,.12)}

/* emoji */
.emoji-panel{position:absolute;left:12px;bottom:70px;width:340px;max-width:calc(100% - 24px);height:320px;background:var(--bg2);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);display:flex;flex-direction:column;overflow:hidden;animation:pop .2s ease}
.emoji-tabs{display:flex;gap:2px;padding:6px;border-bottom:1px solid var(--line);overflow-x:auto}
.emoji-tabs button{font-size:18px;padding:4px 8px;border-radius:8px}
.emoji-tabs button.on{background:rgba(124,92,255,.3)}
.emoji-grid{flex:1;overflow:auto;display:grid;grid-template-columns:repeat(auto-fill,38px);gap:2px;padding:8px;justify-content:center}
.emoji-grid button{font-size:24px;width:38px;height:38px;border-radius:8px}
.emoji-grid button:hover{background:rgba(255,255,255,.08);transform:scale(1.15)}

/* context menu */
.ctx{position:fixed;z-index:50;background:rgba(27,31,46,.96);border:1px solid var(--line);border-radius:14px;padding:6px;min-width:190px;box-shadow:var(--shadow);backdrop-filter:blur(14px);animation:pop .12s ease}
.ctx button{display:block;width:100%;text-align:left;padding:9px 12px;border-radius:9px;font-size:14px}
.ctx button:hover{background:rgba(255,255,255,.07)}
.ctx .danger{color:var(--danger)}

/* call */
.call{position:fixed;inset:0;z-index:100;background:#0a0c12;display:flex;align-items:center;justify-content:center}
#remoteVideo{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;background:#000}
#localVideo{position:absolute;right:16px;top:16px;width:140px;height:190px;object-fit:cover;border-radius:14px;border:2px solid rgba(255,255,255,.2);background:#111;z-index:2}
.call-center{position:relative;z-index:1;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px}
.call-name{font-size:26px;font-weight:700}
.call-state{color:var(--muted)}
.call.active .call-center{opacity:0;pointer-events:none}
.call-bar{position:absolute;bottom:40px;left:0;right:0;display:flex;justify-content:center;gap:18px;z-index:3}
.round{width:64px;height:64px;border-radius:50%;background:rgba(255,255,255,.12);display:grid;place-items:center;color:#fff;transition:.15s}
.round svg{width:28px;height:28px}
.round:hover{background:rgba(255,255,255,.2)}
.round.off{background:rgba(255,92,122,.25);color:var(--danger)}
.round.hang{background:var(--danger)}
.round.accept{background:var(--ok);color:#052;animation:pulse 1.2s infinite}
@keyframes pulse{0%,100%{box-shadow:0 0 0 0 rgba(61,220,151,.5)}50%{box-shadow:0 0 0 16px rgba(61,220,151,0)}}

.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:rgba(27,31,46,.95);border:1px solid var(--line);padding:10px 16px;border-radius:12px;z-index:200;box-shadow:var(--shadow);font-size:14px;animation:pop .2s ease}

/* scrollbars */
*::-webkit-scrollbar{width:8px;height:8px}
*::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:8px}

/* mobile */
@media (max-width:820px){
  .app{grid-template-columns:1fr}
  .side{position:fixed;inset:0 25% 0 0;z-index:40;transform:translateX(-100%);transition:transform .25s ease;box-shadow:var(--shadow)}
  .side.open{transform:none}
  .only-mobile{display:grid}
  .msg{max-width:88%}
  #localVideo{width:100px;height:140px}
  .emoji-panel{height:280px}
}