:root{
  --bg:#f5f5f7; --panel:#ffffff; --line:rgba(60,60,67,.12); --text:#1d1d1f; --muted:#86868b;
  --blue:#0A84FF; --bubble:#e9e9eb; --green:#34C759; --red:#FF3B30; --orange:#FF9F0A;
  --radius:18px; --shadow:0 1px 2px rgba(0,0,0,.04),0 8px 24px rgba(0,0,0,.06);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro Text","Inter","Segoe UI",Roboto,system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){:root{--bg:#000;--panel:#1c1c1e;--line:rgba(84,84,88,.5);--text:#f5f5f7;--muted:#98989d;--bubble:#2c2c2e}}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;height:100%;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
.boot{display:grid;place-items:center;height:100vh;color:var(--muted)}
.btn{background:var(--blue);color:#fff;border-radius:12px;padding:11px 18px;font-weight:600;transition:transform .1s,opacity .2s}
.btn:active{transform:scale(.97)} .btn:disabled{opacity:.5}
.btn.ghost{background:rgba(120,120,128,.14);color:var(--text)} .btn.red{background:var(--red)} .btn.green{background:var(--green)}
.btn.sm{padding:7px 12px;font-size:14px;border-radius:10px}
.field{width:100%;padding:12px 14px;border-radius:12px;border:1px solid var(--line);background:var(--panel);outline:none;font-size:16px}
.field:focus{border-color:var(--blue);box-shadow:0 0 0 4px rgba(10,132,255,.15)}
label.l{display:block;font-size:13px;color:var(--muted);margin:14px 0 6px;font-weight:500}
.muted{color:var(--muted)} .small{font-size:13px}

/* auth + setup */
.center{min-height:100vh;display:grid;place-items:center;padding:24px}
.card{background:var(--panel);border-radius:24px;box-shadow:var(--shadow);padding:32px;width:100%;max-width:420px}
.logo{font-size:44px;line-height:1} h1{font-size:28px;letter-spacing:-.02em;margin:10px 0 4px} h2{font-size:20px;letter-spacing:-.01em;margin:0 0 4px}
.err{color:var(--red);font-size:14px;min-height:20px;margin-top:10px}
.setup{max-width:880px;margin:0 auto;padding:32px 20px 80px}
.tgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:12px;margin:18px 0}
.tcard{background:var(--panel);border-radius:var(--radius);padding:18px;text-align:left;border:2px solid transparent;box-shadow:var(--shadow);transition:border-color .15s}
.tcard.on{border-color:var(--blue)} .tcard .e{font-size:30px} .tcard b{display:block;margin:8px 0 4px;font-size:17px}
.chips{display:flex;flex-wrap:wrap;gap:4px;margin-top:10px} .chip{font-size:12px;background:rgba(120,120,128,.12);border-radius:20px;padding:3px 8px}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 14px} @media(max-width:640px){.grid2{grid-template-columns:1fr}}

/* shell */
.shell{display:grid;grid-template-columns:78px 340px 1fr;height:100vh;height:100dvh}
.rail{background:var(--panel);border-right:1px solid var(--line);display:flex;flex-direction:column;align-items:center;padding:14px 0;gap:6px}
.rail .brand{font-size:28px;margin-bottom:10px}
.tab{width:58px;padding:8px 0;border-radius:14px;display:flex;flex-direction:column;align-items:center;gap:3px;color:var(--muted);font-size:11px;position:relative}
.tab .i{font-size:21px;filter:grayscale(1);opacity:.7} .tab.on{color:var(--blue);background:rgba(10,132,255,.1)} .tab.on .i{filter:none;opacity:1}
.badge{position:absolute;top:2px;right:6px;background:var(--red);color:#fff;border-radius:10px;font-size:11px;min-width:18px;height:18px;line-height:18px;padding:0 5px;font-weight:600}
.list{background:var(--panel);border-right:1px solid var(--line);overflow:auto}
.list header,.pane header{position:sticky;top:0;z-index:2;backdrop-filter:saturate(180%) blur(20px);-webkit-backdrop-filter:saturate(180%) blur(20px);background:color-mix(in srgb,var(--panel) 80%,transparent);border-bottom:1px solid var(--line)}
.list header{padding:18px 18px 12px} .list header h2{font-size:26px;font-weight:700}
.row{display:flex;gap:12px;align-items:center;padding:10px 14px;margin:2px 8px;border-radius:14px;width:calc(100% - 16px);text-align:left}
.row:hover{background:rgba(120,120,128,.08)} .row.on{background:var(--blue);color:#fff} .row.on .muted{color:rgba(255,255,255,.8)}
.row .meta{flex:1;min-width:0} .row .top{display:flex;justify-content:space-between;gap:8px} .row b{font-weight:600}
.row .prev{font-size:14px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.av{width:46px;height:46px;border-radius:50%;display:grid;place-items:center;font-size:22px;flex:none;color:#fff;box-shadow:inset 0 -2px 6px rgba(0,0,0,.12)}
.av.sm{width:30px;height:30px;font-size:15px} .av.lg{width:72px;height:72px;font-size:36px}
.av.group{background:linear-gradient(135deg,#5E5CE6,#0A84FF)}
.pane{display:flex;flex-direction:column;min-width:0;background:var(--bg);overflow:hidden}
.pane header{display:flex;align-items:center;gap:12px;padding:10px 18px;min-height:62px}
.pane header .t{flex:1;min-width:0} .pane header b{display:block} .back{display:none;font-size:28px;color:var(--blue);padding:0 6px 0 0}
.scroll{flex:1;overflow:auto;padding:18px 18px 8px}
.content{max-width:900px;margin:0 auto;width:100%}

/* chat */
.msgs{display:flex;flex-direction:column;gap:3px;max-width:820px;margin:0 auto}
.m{display:flex;gap:8px;align-items:flex-end;max-width:78%} .m.me{align-self:flex-end;flex-direction:row-reverse}
.m .who{font-size:12px;color:var(--muted);margin:10px 0 2px 12px}
.bub{padding:9px 14px;border-radius:20px;background:var(--bubble);line-height:1.42;font-size:15.5px;white-space:pre-wrap;word-wrap:break-word;overflow-wrap:anywhere}
.me .bub{background:var(--blue);color:#fff}
.bub p{margin:0 0 6px} .bub p:last-child{margin:0} .bub ul{margin:4px 0;padding-left:20px;white-space:normal}
.sys{align-self:center;font-size:12px;color:var(--muted);margin:10px 0;background:rgba(120,120,128,.1);padding:3px 10px;border-radius:10px}
.handoff{align-self:center;font-size:13px;color:var(--muted);margin:8px 0;display:flex;align-items:center;gap:6px}
.att{margin-top:6px;display:flex;flex-direction:column;gap:6px;max-width:78%;margin-left:38px}
.attc{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:10px 12px;font-size:14px}
.attc .k{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--orange);font-weight:700}
.typing{display:inline-flex;gap:4px;padding:12px 14px} .typing i{width:7px;height:7px;border-radius:50%;background:var(--muted);animation:b 1.2s infinite} .typing i:nth-child(2){animation-delay:.15s} .typing i:nth-child(3){animation-delay:.3s}
@keyframes b{0%,60%,100%{opacity:.3;transform:translateY(0)}30%{opacity:1;transform:translateY(-3px)}}
.composer{display:flex;gap:8px;align-items:flex-end;padding:10px 14px calc(10px + env(safe-area-inset-bottom));border-top:1px solid var(--line);background:color-mix(in srgb,var(--panel) 85%,transparent);backdrop-filter:blur(20px)}
.composer textarea{flex:1;resize:none;max-height:140px;border-radius:20px;border:1px solid var(--line);background:var(--panel);padding:9px 14px;font-size:16px;outline:none;line-height:1.35}
.send{width:36px;height:36px;border-radius:50%;background:var(--blue);color:#fff;font-size:18px;font-weight:700;flex:none} .send:disabled{opacity:.35}
.sugg{display:flex;gap:6px;overflow:auto;padding:0 14px 8px;max-width:850px;margin:0 auto;width:100%} .sugg button{white-space:nowrap;font-size:13px;border:1px solid var(--line);border-radius:16px;padding:6px 11px;background:var(--panel)}
.empty{text-align:center;color:var(--muted);padding:40px 20px} .empty .av{margin:0 auto 10px}

/* boards */
.cols{display:grid;grid-template-columns:repeat(3,1fr);gap:14px} @media(max-width:900px){.cols{grid-template-columns:1fr}}
.col{background:rgba(120,120,128,.07);border-radius:var(--radius);padding:12px;min-height:120px}
.col h3{font-size:14px;margin:2px 4px 10px;display:flex;justify-content:space-between;color:var(--muted)}
.item{background:var(--panel);border-radius:14px;padding:12px;margin-bottom:8px;box-shadow:var(--shadow);font-size:14px}
.item .h{display:flex;gap:8px;align-items:center;margin-bottom:6px} .item .acts{display:flex;gap:6px;margin-top:10px;flex-wrap:wrap}
.item pre{white-space:pre-wrap;font-family:inherit;margin:6px 0 0;color:var(--text);max-height:220px;overflow:auto}
.pill{font-size:11px;font-weight:700;border-radius:8px;padding:2px 7px;text-transform:uppercase;letter-spacing:.04em}
.pill.pending{background:rgba(255,159,10,.15);color:var(--orange)} .pill.sent,.pill.approved{background:rgba(52,199,89,.15);color:var(--green)} .pill.rejected,.pill.failed{background:rgba(255,59,48,.12);color:var(--red)}
.sec{background:var(--panel);border-radius:var(--radius);box-shadow:var(--shadow);padding:18px;margin-bottom:14px}
.sec .hd{display:flex;align-items:center;gap:10px;justify-content:space-between;flex-wrap:wrap}
.status{font-size:13px;font-weight:600} .status.on{color:var(--green)} .status.off{color:var(--muted)}
.switch{position:relative;width:50px;height:30px;border-radius:30px;background:rgba(120,120,128,.3);transition:.2s;flex:none} .switch::after{content:"";position:absolute;top:2px;left:2px;width:26px;height:26px;border-radius:50%;background:#fff;box-shadow:0 2px 4px rgba(0,0,0,.2);transition:.2s}
.switch.on{background:var(--green)} .switch.on::after{left:22px}
.botgrid{display:grid;grid-template-columns:repeat(auto-fill,minmax(220px,1fr));gap:10px;margin-top:12px}
.toast{position:fixed;left:50%;bottom:90px;transform:translateX(-50%);background:rgba(30,30,30,.92);color:#fff;padding:10px 16px;border-radius:14px;font-size:14px;z-index:99;max-width:90vw}

/* mobile */
@media(max-width:820px){
  .shell{grid-template-columns:1fr;grid-template-rows:1fr auto}
  .rail{flex-direction:row;justify-content:space-around;border-right:0;border-top:1px solid var(--line);padding:6px 4px calc(6px + env(safe-area-inset-bottom));order:3;grid-row:2}
  .rail .brand{display:none} .tab{width:auto;flex:1}
  .list,.pane{grid-row:1;grid-column:1} .shell.inchat .list{display:none} .shell:not(.inchat) .pane.chatpane{display:none}
  .shell.inchat .rail{display:none} .shell.inchat{grid-template-rows:1fr}
  .back{display:block} .m{max-width:88%}
}
.shell.wide{grid-template-columns:78px 1fr}
@media(max-width:820px){.shell.wide{grid-template-columns:1fr}}