:root{
  --ink:#15181e; --muted:#5d6471; --line:#dfe2e7; --paper:#f2f3f5; --panel:#fff; --focus:#1a56db;
  --display:'Bricolage Grotesque',system-ui,sans-serif; --body:'Instrument Sans',system-ui,sans-serif;
}
@media (prefers-color-scheme:dark){
  :root{--ink:#eef0f3; --muted:#9aa2af; --line:#2c313a; --paper:#101216; --panel:#181b21; --focus:#7aa2ff}
}
*{box-sizing:border-box}
html,body{margin:0}
body{font:16px/1.5 var(--body);color:var(--ink);background:var(--paper)}
h1,h2,h3{font-family:var(--display);line-height:1.1;margin:0;letter-spacing:-.02em}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px}
.muted{color:var(--muted)}
.err{color:#b42318;min-height:1.4em;font-size:.95rem}
@media (prefers-color-scheme:dark){.err{color:#ff8a80}}

/* buttons + fields */
.btn{border:1px solid var(--ink);background:var(--ink);color:var(--paper);padding:.65rem 1.1rem;border-radius:8px;cursor:pointer;font-weight:600}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.danger{background:transparent;color:#b42318;border-color:#b42318}
.btn:disabled{opacity:.5;cursor:not-allowed}
label{display:block;font-weight:600;font-size:.92rem;margin:1rem 0 .3rem}
input,select,textarea{width:100%;padding:.65rem .75rem;border:1px solid var(--line);border-radius:8px;background:var(--panel)}
input[type=color]{padding:.15rem;height:2.6rem;width:5rem}

/* auth */
.auth{min-height:100vh;display:grid;grid-template-columns:1.1fr 1fr}
.auth-brand{background:#15181e;color:#f2f3f5;padding:4rem;display:flex;flex-direction:column;justify-content:space-between}
.auth-brand h1{font-size:clamp(2.2rem,4vw,3.6rem);max-width:12ch}
.auth-brand .roster{display:flex;flex-wrap:wrap;gap:.6rem}
.chip{display:inline-flex;align-items:center;gap:.45rem;padding:.3rem .75rem;border-radius:99px;border:1px solid rgba(255,255,255,.25);font-size:.9rem}
.chip::before{content:"";width:.6rem;height:.6rem;border-radius:50%;background:var(--c)}
.auth-form{padding:4rem;display:flex;flex-direction:column;justify-content:center;max-width:30rem;width:100%;margin:auto}
.tabs{display:flex;gap:1.5rem;border-bottom:1px solid var(--line);margin-bottom:1rem}
.tab{background:none;border:0;padding:.6rem 0;cursor:pointer;color:var(--muted);font-weight:600;border-bottom:3px solid transparent}
.tab[aria-selected=true]{color:var(--ink);border-color:var(--ink)}
.google{display:flex;justify-content:center;width:100%;text-decoration:none;margin-bottom:.5rem}
.or{text-align:center;color:var(--muted);margin:.8rem 0 0}

/* shell */
.shell{display:grid;grid-template-columns:260px 1fr;grid-template-rows:auto 1fr;min-height:100vh}
.top{grid-column:1/3;display:flex;justify-content:space-between;align-items:center;padding:.8rem 1.5rem;background:var(--panel);border-bottom:1px solid var(--line)}
.brand{font:700 1.25rem var(--display);letter-spacing:-.02em;cursor:pointer;background:none;border:0}
.side{background:var(--panel);border-right:1px solid var(--line);padding:1.2rem .8rem;display:flex;flex-direction:column;gap:.15rem}
.side h3{font-size:.95rem;color:var(--muted);padding:0 .6rem .4rem;font-family:var(--body);font-weight:600;letter-spacing:0}
.nav{display:flex;align-items:center;gap:.65rem;width:100%;text-align:left;background:none;border:0;border-radius:8px;padding:.55rem .6rem;cursor:pointer}
.nav:hover,.nav[aria-current=page]{background:var(--paper)}
.nav[aria-current=page]{font-weight:600}
.dot{width:.7rem;height:.7rem;border-radius:3px;background:var(--c);flex:none}
.paused{opacity:.55}
.main{padding:2rem clamp(1rem,3vw,2.5rem);max-width:1300px;width:100%}
.main>header{display:flex;justify-content:space-between;align-items:end;gap:1rem;margin-bottom:1.5rem;flex-wrap:wrap}
.main h1{font-size:clamp(1.8rem,3vw,2.6rem)}

/* tiles: the dashboard's main event */
.tiles{display:grid;grid-template-columns:repeat(auto-fill,minmax(310px,1fr));gap:1.25rem}
.tile{display:flex;flex-direction:column;text-align:left;background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;cursor:pointer;padding:0;min-height:300px}
.tile:hover{border-color:var(--c)}
.tile-head{background:var(--c);color:#fff;padding:1.4rem 1.4rem 1.1rem;min-height:132px;display:flex;flex-direction:column;justify-content:space-between}
.tile-head .mono{font:700 2.6rem var(--display);line-height:1}
.tile-head .name{font:700 1.4rem var(--display)}
.tile-body{padding:1.1rem 1.4rem;display:flex;flex-direction:column;gap:.7rem;flex:1}
.status{font-size:.85rem;font-weight:600;display:inline-flex;gap:.4rem;align-items:center}
.status::before{content:"";width:.55rem;height:.55rem;border-radius:50%;background:#1a9d5c}
.status.off::before{background:#98a1ad}
.empty-stat{border:1px dashed var(--line);border-radius:10px;padding:.9rem;color:var(--muted);font-size:.95rem;flex:1}
.tile.add{align-items:center;justify-content:center;border-style:dashed;background:transparent;color:var(--muted);font-weight:600;gap:.4rem}
.tile.add .plus{font:500 2.4rem var(--display);color:var(--ink)}

/* agent view */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:14px;padding:1.5rem}
.agent-bar{height:8px;border-radius:99px;background:var(--c);margin-bottom:1.2rem}
.conn{display:flex;justify-content:space-between;padding:.8rem 0;border-bottom:1px solid var(--line)}
.conn:last-child{border:0}
.composer{display:flex;gap:.6rem;margin-top:1rem}
.row{display:flex;gap:.8rem;flex-wrap:wrap;margin-top:1.4rem}
dialog{border:1px solid var(--line);border-radius:14px;background:var(--panel);color:var(--ink);padding:1.6rem;width:min(30rem,92vw)}
dialog::backdrop{background:rgba(10,12,16,.55)}

/* connections */
.stack{display:flex;flex-direction:column;gap:1.25rem}
.panel h2{font-size:1.35rem}
.sub{font-family:var(--body);font-size:1rem;font-weight:600;margin:1.6rem 0 0;letter-spacing:0}
.small{font-size:.88rem}
.btn.small{padding:.4rem .8rem;font-size:.9rem}
.row.tight{margin-top:.8rem}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:0 1rem}
.warn{font-size:.9rem;font-weight:600;color:#b45309}
@media (prefers-color-scheme:dark){.warn{color:#fbbf24}}
.conn-state{margin:.8rem 0 0;padding:.7rem .9rem;border-radius:10px;font-weight:600;font-size:.95rem}
.conn-state.ok{background:color-mix(in srgb,#1a9d5c 12%,transparent);color:#117346}
.conn-state.bad{background:color-mix(in srgb,#d97706 14%,transparent);color:#92400e}
@media (prefers-color-scheme:dark){.conn-state.ok{color:#6ee7a8}.conn-state.bad{color:#fcd34d}}
.conn-list{display:grid;grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:1rem;margin-top:1rem}
.conn-card{border:1px solid var(--line);border-radius:12px;padding:1rem 1.1rem}
.conn-card label{margin-top:.6rem;font-weight:500}
.conn-card select{margin-top:.3rem}
.conn-card .err{min-height:0}
.conn-head{display:flex;justify-content:space-between;align-items:center;gap:.5rem}
.conn-card p.small{margin:.3rem 0 0}
.pill{font-size:.8rem;font-weight:600;padding:.15rem .6rem;border-radius:99px}
.pill.ok{background:color-mix(in srgb,#1a9d5c 15%,transparent);color:#117346}
.pill.bad{background:color-mix(in srgb,#b42318 14%,transparent);color:#b42318}
@media (prefers-color-scheme:dark){.pill.ok{color:#6ee7a8}.pill.bad{color:#ff8a80}}

/* chat */
.chat{display:flex;flex-direction:column}
.chat-head{display:flex;justify-content:space-between;align-items:center;gap:1rem}
.chat-log{height:min(58vh,560px);overflow-y:auto;display:flex;flex-direction:column;gap:.7rem;padding:1rem .2rem;margin:.6rem 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.center{text-align:center;margin:auto}
.msg{display:flex}
.msg.user{justify-content:flex-end}
.bubble{max-width:min(46rem,85%);padding:.7rem .95rem;border-radius:14px;white-space:pre-wrap;overflow-wrap:anywhere;background:var(--paper)}
.msg.user .bubble{background:var(--ink);color:var(--paper);border-bottom-right-radius:4px}
.msg.assistant .bubble{border-bottom-left-radius:4px}
.typing{color:var(--muted);font-style:italic}
.composer textarea{resize:vertical;min-height:2.9rem}
.composer .btn{align-self:flex-end}

/* rules */
.rules{display:flex;flex-direction:column;margin-top:1rem}
.rule{display:grid;grid-template-columns:auto 1fr auto;gap:.9rem;align-items:start;padding:.85rem 0;border-bottom:1px solid var(--line)}
.rule:has(textarea){grid-template-columns:1fr}
.rule input[type=checkbox]{width:1.15rem;height:1.15rem;margin-top:.2rem;accent-color:var(--ink)}
.rule-text{margin:0;white-space:pre-wrap;overflow-wrap:anywhere}
.rule.off .rule-text{color:var(--muted);text-decoration:line-through}
.rule .row.tight{margin-top:0}
@media (max-width:640px){.grid2{grid-template-columns:1fr}.rule{grid-template-columns:auto 1fr}.rule .row{grid-column:2}}

@media (max-width:860px){
  .auth{grid-template-columns:1fr}.auth-brand{padding:2rem;gap:2rem}.auth-form{padding:2rem}
  .shell{grid-template-columns:1fr}.top{grid-column:1}
  .side{flex-direction:row;overflow-x:auto;border-right:0;border-bottom:1px solid var(--line);padding:.6rem}
  .side h3{display:none}.nav{width:auto;white-space:nowrap}
}
@media (prefers-reduced-motion:no-preference){.tile{transition:border-color .15s}}