:root{
  --acc:#0e7a6c; --acc-soft:#e9f4f2; --acc-bubble:#d8ece8;
  --ink:#20262e; --mut:#7b8692; --mut2:#98a2ae;
  --line:#e7eaee; --bg:#f6f7f9; --card:#fff;
  --wb:#cb11ab; --oz:#005bff; --ym:#f5c500; --ym-ink:#4a3b00;
  --bad:#d43a3a; --warn:#d97e00; --ok:#1e9e56;
}
*{box-sizing:border-box;}
[hidden]{display:none !important;}
html,body{margin:0;height:100%;}
body{font:14px/1.5 "Segoe UI",-apple-system,system-ui,sans-serif;color:var(--ink);background:var(--bg);}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit;padding:0;}
input,textarea{font:inherit;color:inherit;}

.app{display:grid;grid-template-columns:320px 1fr;height:100dvh;background:var(--card);}
.app.with-info{grid-template-columns:320px 1fr 280px;}

/* ---------- left pane ---------- */
.side{border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0;background:var(--card);}
.brand{padding:12px 14px 8px;display:flex;align-items:center;gap:10px;}
.logo{width:32px;height:32px;border-radius:9px;background:var(--acc);color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;flex:none;}
.logo.big{width:52px;height:52px;font-size:24px;border-radius:14px;margin:0 auto 6px;}
.brand-t{min-width:0;flex:1;}
.brand-t b{display:block;font-size:15px;}
.brand-t span{font-size:11.5px;color:var(--mut2);}
.iconbtn{width:30px;height:30px;border-radius:8px;display:grid;place-items:center;color:var(--mut);font-size:15px;flex:none;}
.iconbtn:hover{background:var(--bg);}
.me{width:30px;height:30px;border-radius:50%;background:#31507d;color:#fff;display:grid;place-items:center;font-size:11px;font-weight:600;flex:none;}
.search{padding:2px 12px 8px;}
.search input{width:100%;background:var(--bg);border:0;border-radius:8px;padding:8px 12px;font-size:13px;outline:none;}
.search input:focus{box-shadow:0 0 0 2px var(--acc-soft), 0 0 0 3px var(--acc);}
.filters{display:flex;gap:6px;padding:0 12px 8px;flex-wrap:wrap;}
.chip{font-size:11.5px;font-weight:600;padding:5px 10px;border-radius:14px;background:var(--bg);color:#57616d;}
.chip.on{background:var(--acc);color:#fff;}
.list{flex:1;overflow-y:auto;overscroll-behavior:contain;}
.empty{padding:30px 16px;text-align:center;color:var(--mut2);font-size:13px;}

.item{display:flex;gap:10px;padding:10px 14px;border-top:1px solid #f2f4f6;cursor:pointer;width:100%;text-align:left;}
.item:hover{background:#fafbfc;}
.item.sel{background:var(--acc-soft);}
.ava{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:#fff;font-size:13px;font-weight:600;flex:none;position:relative;}
.ava em{position:absolute;right:-3px;bottom:-3px;width:15px;height:15px;border-radius:5px;border:2px solid #fff;font-style:normal;}
.ava em.WB{background:var(--wb);} .ava em.OZON{background:var(--oz);} .ava em.YM{background:var(--ym);}
.imeta{min-width:0;flex:1;}
.imeta .r1{display:flex;justify-content:space-between;gap:8px;align-items:baseline;}
.imeta .r1 b{font-size:13.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.imeta .r1 time{font-size:11px;color:var(--mut2);flex:none;font-variant-numeric:tabular-nums;}
.imeta .r1 time.hot{color:var(--bad);font-weight:700;}
.imeta .r2{display:flex;justify-content:space-between;gap:8px;align-items:center;margin-top:1px;}
.imeta .r2 span{font-size:12.5px;color:var(--mut);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.unread{background:var(--acc);color:#fff;font-size:10.5px;font-weight:700;border-radius:9px;padding:3px 7px;flex:none;}
.shopline{font-size:10.5px;color:var(--mut2);margin-top:2px;}

/* ---------- center ---------- */
.main{display:flex;flex-direction:column;min-width:0;background:var(--bg);}
.thread-head{background:var(--card);border-bottom:1px solid var(--line);padding:10px 16px;display:flex;align-items:center;gap:9px;min-height:50px;}
.thread-head b{font-size:14.5px;}
.thread-head .sub{font-size:12px;color:var(--mut2);margin-left:auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.backbtn{display:none;}
.closechat{font-size:11.5px;font-weight:600;color:var(--mut);border:1px solid var(--line);border-radius:7px;padding:5px 9px;flex:none;}
.closechat:hover{color:var(--bad);border-color:var(--bad);}
.retrybtn{display:block;margin-top:6px;font-size:11.5px;font-weight:700;color:var(--bad);background:#fff;border:1px solid var(--bad);border-radius:7px;padding:4px 9px;}
.retrybtn:hover{background:var(--bad);color:#fff;}
.plat{display:inline-flex;align-items:center;font-size:10.5px;font-weight:700;letter-spacing:.04em;border-radius:4px;padding:3px 6px;flex:none;color:#fff;}
.plat.WB{background:var(--wb);} .plat.OZON{background:var(--oz);}
.plat.YM{background:var(--ym);color:var(--ym-ink);}
.shoptag{display:inline-flex;font-size:10.5px;font-weight:600;border-radius:4px;padding:3px 6px;border:1px solid var(--acc);color:var(--acc);flex:none;}

.msgs{flex:1;overflow-y:auto;padding:16px 20px;display:flex;flex-direction:column;gap:9px;overscroll-behavior:contain;}
.placeholder{margin:auto;text-align:center;color:var(--mut2);}
.ph-ico{font-size:40px;opacity:.5;}
.day{align-self:center;font-size:11px;color:var(--mut2);background:#eceff2;border-radius:10px;padding:3px 10px;flex:none;}
.b{max-width:72%;padding:9px 13px;border-radius:12px;font-size:13.5px;position:relative;white-space:pre-wrap;word-break:break-word;}
.b time{display:block;font-size:10.5px;color:var(--mut2);margin-top:4px;text-align:right;white-space:nowrap;}
.b.in{background:var(--card);border:1px solid var(--line);align-self:flex-start;border-bottom-left-radius:4px;}
.b.out{background:var(--acc-bubble);align-self:flex-end;border-bottom-right-radius:4px;}
.b.sys{background:#f0eddc;align-self:center;font-size:12px;color:#6b655b;max-width:85%;}
.b.pending{opacity:.65;}
.b.failed{outline:2px solid var(--bad);}
.b .who{font-size:10.5px;color:var(--acc);font-weight:600;margin-bottom:2px;}

.reply{background:var(--card);border-top:1px solid var(--line);padding:10px 14px calc(10px + env(safe-area-inset-bottom));}
.tmpl-row{display:flex;gap:6px;margin-bottom:8px;flex-wrap:wrap;}
.tmpl-row:empty{display:none;}
.tmpl{font-size:11.5px;background:var(--bg);border-radius:12px;padding:4px 10px;color:#57616d;border:1px dashed #d4dae0;}
.tmpl:hover{border-color:var(--acc);color:var(--acc);}
.inputrow{display:flex;gap:9px;align-items:flex-end;}
.inputrow textarea{flex:1;background:var(--bg);border:0;border-radius:10px;padding:10px 14px;font-size:13.5px;resize:none;outline:none;max-height:140px;}
.inputrow textarea:focus{box-shadow:0 0 0 2px var(--acc-soft), 0 0 0 3px var(--acc);}
.send{background:var(--acc);color:#fff;border-radius:10px;padding:10px 18px;font-weight:600;font-size:13.5px;flex:none;}
.send:disabled{opacity:.5;cursor:default;}
.sendnote{font-size:11px;color:var(--mut2);margin-top:5px;}
.sendnote.err{color:var(--bad);}

/* ---------- right pane ---------- */
.info{border-left:1px solid var(--line);padding:14px;font-size:12.5px;display:flex;flex-direction:column;gap:14px;background:var(--card);overflow-y:auto;position:relative;}
.icard h4{margin:0 0 8px;font-size:10.5px;letter-spacing:.07em;text-transform:uppercase;color:var(--mut2);font-weight:700;}
.kv{display:grid;grid-template-columns:auto 1fr;gap:3px 10px;margin:0;}
.kv dt{color:var(--mut);} .kv dd{margin:0;font-weight:600;word-break:break-word;}
.hist{font-size:12px;color:var(--mut);}
.hist b{color:var(--ink);}
.closebtn{position:absolute;top:8px;right:8px;display:none;}

/* ---------- login gate ---------- */
.gate{position:fixed;inset:0;background:var(--bg);display:grid;place-items:center;padding:20px;}
.gate-card{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:36px 40px;text-align:center;max-width:360px;box-shadow:0 10px 30px rgba(20,28,40,.08);}
.gate-card h1{margin:6px 0 4px;font-size:22px;}
.gate-card p{margin:0 0 18px;color:var(--mut);font-size:13px;}
.gate-err{color:var(--bad);min-height:18px;margin-top:12px;}

/* ---------- responsive: tablet — hide info unless toggled ---------- */
@media (max-width:1100px){
  .app.with-info{grid-template-columns:320px 1fr;}
  .info{position:fixed;top:0;right:0;bottom:0;width:300px;box-shadow:-8px 0 24px rgba(20,28,40,.15);z-index:30;}
  .closebtn{display:grid;}
}
/* ---------- responsive: phone / mini app — single pane ---------- */
@media (max-width:760px){
  .app,.app.with-info{grid-template-columns:1fr;}
  .side{display:flex;}
  .main{display:none;}
  .app.mob-thread .side{display:none;}
  .app.mob-thread .main{display:flex;}
  .backbtn{display:grid;}
  .b{max-width:86%;}
  .info{width:min(320px,92vw);}
}