/* Layout: one-screen booth tool. Header with tally-light status, two tabs (Ask / Setup notes), chat column with a pinned composer. */
:root{
  --bg:#f3f4f6; --panel:#ffffff; --ink:#16191f; --muted:#5b6270; --line:#d9dce2;
  --accent:#1f6f4a;  /* preview-bus green: ready */
  --accent-ink:#ffffff;
  --live:#c2341f;    /* program-bus red: errors */
  --chip:#e8ebef; --me:#16191f; --me-ink:#f3f4f6;
  --display:"Barlow Condensed","Arial Narrow",system-ui,sans-serif;
  --body:"Atkinson Hyperlegible",system-ui,-apple-system,"Segoe UI",sans-serif;
  --mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
  color-scheme:light;
}
@media (prefers-color-scheme: dark){:root{
  --bg:#101318; --panel:#181c23; --ink:#e7e9ee; --muted:#9aa1ad; --line:#2a303a;
  --accent:#3fae7c; --accent-ink:#0c1410; --live:#ef6a55; --chip:#222833; --me:#e7e9ee; --me-ink:#101318; color-scheme:dark}}
*{box-sizing:border-box}
html,body{height:100%;margin:0}
body{background:var(--bg);color:var(--ink);font:16px/1.5 var(--body);padding-top:env(safe-area-inset-top,0px);padding-bottom:env(safe-area-inset-bottom,0px)}
[hidden]{display:none!important}
.app{height:100%;display:flex;flex-direction:column;max-width:760px;margin:0 auto;padding-inline:16px}
header{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-block:14px 10px;flex-wrap:wrap}
.brand{display:flex;flex-direction:column;min-width:0}
.eyebrow{font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
h1{font:700 30px/1.05 var(--display);letter-spacing:.01em;margin:4px 0 0;text-wrap:balance}
.who{display:flex;align-items:center;gap:10px}
.signout{font-size:14px;color:var(--muted)}
.tally{display:inline-flex;align-items:center;gap:8px;font:500 12px/1 var(--mono);letter-spacing:.06em;text-transform:uppercase;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:6px 10px;background:var(--panel)}
.tally i{width:9px;height:9px;border-radius:50%;background:var(--muted)}
.tally.ok i{background:var(--accent)}
.signin{display:flex;flex-direction:column;gap:16px;padding-block:40px;max-width:46ch}
.lead{font-size:19px;margin:0}
.btn{font:700 16px/1 var(--display);letter-spacing:.06em;text-transform:uppercase;border-radius:10px;padding:12px 16px;border:1px solid transparent;cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center}
.btn.big{font-size:20px;padding:16px 20px;align-self:flex-start}
.btn.primary{background:var(--accent);color:var(--accent-ink)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn.danger{background:transparent;color:var(--live);border-color:var(--live)}
.btn:disabled{opacity:.5;cursor:default}
.appbody{flex:1;min-height:0;display:flex;flex-direction:column}
nav{display:flex;gap:4px;border-bottom:1px solid var(--line)}
nav button{font:700 17px/1 var(--display);letter-spacing:.04em;text-transform:uppercase;background:none;border:0;color:var(--muted);padding:10px 12px;border-bottom:3px solid transparent;cursor:pointer}
nav button[aria-selected="true"]{color:var(--ink);border-bottom-color:var(--accent)}
a:focus-visible,button:focus-visible,textarea:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
main{flex:1;min-height:0;display:flex;flex-direction:column}
.panewrap{flex:1;min-height:0;display:flex;flex-direction:column}
.pane{flex:1;min-height:0;overflow-y:auto;padding-block:16px;-webkit-overflow-scrolling:touch}
#log{display:flex;flex-direction:column;gap:14px}
.msg{max-width:88%;min-width:0;padding:10px 14px;border-radius:14px;overflow-wrap:anywhere}
.msg.user{align-self:flex-end;background:var(--me);color:var(--me-ink);border-bottom-right-radius:4px}
.msg.bot{align-self:flex-start;background:var(--panel);border:1px solid var(--line);border-bottom-left-radius:4px}
.msg.err{border-color:var(--live)}
.msg p,.topic .body p{margin:0 0 .5em}.msg p:last-child{margin-bottom:0}
.msg ol,.msg ul,.topic .body ol,.topic .body ul{margin:.2em 0 .6em;padding-left:1.4em}.msg li{margin:.15em 0}
.msg h4,.topic .body h4{font:700 17px/1.2 var(--display);letter-spacing:.03em;text-transform:uppercase;margin:.6em 0 .3em}
.thinking{color:var(--muted);font-style:italic}
.note{font-size:13px;color:var(--muted);margin-top:6px}
.intro{display:flex;flex-direction:column;gap:12px}
.intro p{margin:0;color:var(--muted);max-width:60ch}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{font:inherit;font-size:14px;background:var(--chip);color:var(--ink);border:1px solid var(--line);border-radius:999px;padding:7px 12px;cursor:pointer;text-align:left}
.chip:hover{border-color:var(--accent)}
.composer{display:flex;gap:8px;align-items:flex-end;padding-block:10px 14px;border-top:1px solid var(--line);background:var(--bg)}
.composer textarea{flex:1;min-width:0;resize:none;font:inherit;font-size:16px;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:10px 12px;max-height:140px}
.banner{border:1px solid var(--line);border-left:4px solid var(--live);background:var(--panel);border-radius:8px;padding:10px 12px;font-size:14px;margin-bottom:12px}
.banner code{font-family:var(--mono)}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:12px}
.toolbar input{flex:1;min-width:0;font:inherit;color:var(--ink);background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:9px 12px}
.cat{font:500 11px/1 var(--mono);letter-spacing:.12em;text-transform:uppercase;color:var(--muted);margin:18px 0 6px}
details.topic{background:var(--panel);border:1px solid var(--line);border-radius:10px;margin-bottom:8px}
details.topic summary{cursor:pointer;padding:12px 14px;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:10px}
details.topic summary::-webkit-details-marker{display:none}
details.topic summary::after{content:"+";font-family:var(--mono);color:var(--muted)}
details.topic[open] summary::after{content:"\2212"}
.topic .body{padding:0 14px 12px;overflow-wrap:anywhere}
.topic .actions{display:flex;gap:8px;padding:0 14px 12px}
.empty{color:var(--muted);padding:24px 0}
form.editor{display:flex;flex-direction:column;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:12px;padding:14px;margin-bottom:16px}
form.editor label{font:500 11px/1 var(--mono);letter-spacing:.1em;text-transform:uppercase;color:var(--muted);display:flex;flex-direction:column;gap:6px}
form.editor input,form.editor textarea{font:16px/1.45 var(--body);color:var(--ink);background:var(--bg);border:1px solid var(--line);border-radius:8px;padding:9px 10px;text-transform:none;letter-spacing:0}
form.editor textarea{min-height:200px;resize:vertical}
.row{display:flex;gap:8px;flex-wrap:wrap}
.hint{font-size:13px;color:var(--muted);margin:0}
.account{margin-top:24px}
@media (prefers-reduced-motion: reduce){*{scroll-behavior:auto!important}}