:root{--bg:#f6f8fa;--panel:#fff;--ink:#14181d;--muted:#5a6672;--faint:#8a94a0;
--line:#dfe4ea;--line-soft:#eaeef3;--accent:#0f6e78;--head:#eef1f5;
--fresh:#1a7f5a;--fresh-bg:#e3f2ea;--ageing:#8a6208;--ageing-bg:#f8eeda;
--stale:#a8541f;--stale-bg:#fbeadc;--old:#ab3427;--old-bg:#fbe6e3;
--none:#7d8895;--none-bg:#eef1f5;
--mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace}
*{box-sizing:border-box}
body{margin:0;font:14px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;background:var(--bg);color:var(--ink)}
a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}
.topbar{display:flex;align-items:center;gap:18px;padding:11px 18px;background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;flex-wrap:wrap}
.brand a{font-weight:700;color:var(--ink);font-size:15px}
.tag{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:9px;padding:1px 8px;font-family:var(--mono)}
.nav{display:flex;gap:16px;align-items:center;font-size:13px}
.tools{display:flex;gap:12px;align-items:center;margin-left:auto;flex-wrap:wrap}
button,.btn{font:inherit;font-size:12.5px;padding:5px 11px;border:1px solid var(--line);background:#fff;border-radius:5px;cursor:pointer;color:var(--ink)}
button:hover,.btn:hover{border-color:var(--accent);color:var(--accent);text-decoration:none}
main{padding:20px 18px 70px;max-width:1500px;margin:0 auto}
h1{font-size:20px;margin:0 0 6px;font-family:var(--mono)}
.muted{color:var(--muted);font-size:12.5px}
.note{color:var(--muted);font-size:13px;max-width:96ch;margin:0 0 20px}
.band{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--line);border:1px solid var(--line);border-radius:5px;overflow:hidden;margin:0 0 18px}
.band div{background:#fff;padding:12px 15px}
.band .n{font-family:var(--mono);font-size:20px;font-variant-numeric:tabular-nums;display:block}
.band .l{font-size:11px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-top:2px;display:block}
.area{margin-bottom:26px}
.area h2{font-size:14px;margin:0 0 8px;display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.areaname{font-family:var(--mono);font-weight:700;color:var(--accent);font-size:15px}
.blurb{font-weight:400;color:var(--faint);font-size:12px;font-family:var(--mono)}
.scroll{overflow-x:auto;border:1px solid var(--line);border-radius:5px;background:var(--panel)}
table{border-collapse:collapse;width:100%;font-size:13px}
th{text-align:left;font-size:10.5px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);font-weight:700;padding:8px 11px;border-bottom:1px solid var(--line);background:var(--head);white-space:nowrap}
td{padding:7px 11px;border-bottom:1px solid var(--line-soft);vertical-align:top}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover td{background:#fbfcfd}
td.obj{font-family:var(--mono);font-size:12.5px;font-weight:600;min-width:270px}
td.obj .dim{color:var(--faint);font-weight:400}
td.obj .desc{font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;font-size:11.5px;font-weight:400;color:var(--muted);margin-top:2px}
td.n,th.n{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums;white-space:nowrap}
td.d{font-family:var(--mono);font-size:12px;color:var(--muted);white-space:nowrap}
td.src{font-family:var(--mono);font-size:11.5px;color:var(--faint);white-space:nowrap}
.age{display:inline-block;font-family:var(--mono);font-size:10.5px;font-weight:600;letter-spacing:.04em;padding:2px 7px;border-radius:3px;white-space:nowrap}
.age.fresh{background:var(--fresh-bg);color:var(--fresh)}
.age.ageing{background:var(--ageing-bg);color:var(--ageing)}
.age.stale{background:var(--stale-bg);color:var(--stale)}
.age.old{background:var(--old-bg);color:var(--old)}
.age.none{background:var(--none-bg);color:var(--none)}
.grid table{font-size:12px}
.grid td{white-space:nowrap;max-width:320px;overflow:hidden;text-overflow:ellipsis;font-family:var(--mono);font-size:11.5px}
.grid th{position:sticky;top:0}
.empty{color:var(--faint);padding:22px;text-align:center;font-family:-apple-system,sans-serif}
.pager{display:flex;gap:14px;align-items:center;margin-top:14px}
code{font-family:var(--mono);font-size:.9em;background:var(--head);padding:1px 5px;border-radius:3px}
@media(prefers-color-scheme:dark){
:root{--bg:#0d1117;--panel:#151b23;--ink:#e6edf3;--muted:#a3b0bf;--faint:#79879a;
--line:#2b333e;--line-soft:#222932;--accent:#4ec5cf;--head:#1c232c;
--fresh:#52c08b;--fresh-bg:#12301f;--ageing:#d9a03f;--ageing-bg:#33270e;
--stale:#e08a4f;--stale-bg:#38230f;--old:#e0685a;--old-bg:#351a17;
--none:#79879a;--none-bg:#1c232c}
.topbar{background:var(--panel)}
button,.btn{background:var(--panel)}
.band div{background:var(--panel)}
tbody tr:hover td{background:#1a212a}
}

/* --- KAI Chat: three resizable columns ---------------------------------
   History rail | chart / result / explanation | the assistant.
   Mirrors the internal KAI panel split so the two surfaces read the same. */
.kai{display:flex;gap:0;height:calc(100vh - 118px);min-height:520px;align-items:stretch}
.pane{display:flex;flex-direction:column;gap:10px;min-width:0;overflow:hidden}
#pane-left{flex:0 0 168px}
/* The assistant takes half the width; the dashboard takes whatever is left.
   The assistant is shrinkable rather than fixed, so dragging the middle grip
   wider takes space *from* it instead of overflowing the row. */
#pane-mid{flex:1 1 auto;min-width:0}
#pane-right{flex:0 1 50%;min-width:0}
.grip{flex:0 0 8px;cursor:col-resize;background:transparent;position:relative}
.grip::after{content:"";position:absolute;left:3px;top:0;bottom:0;width:2px;background:var(--line)}
.grip:hover::after{background:var(--accent)}

.box{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:7px;background:var(--panel);overflow:hidden;min-height:0}
.box-grow{flex:1 1 auto}
.box-chart{flex:0 0 300px}
.box-h{font-size:10.5px;text-transform:uppercase;letter-spacing:.07em;color:var(--faint);font-weight:700;padding:8px 12px;border-bottom:1px solid var(--line);background:var(--head);display:flex;justify-content:space-between;gap:8px}
.box-note{text-transform:none;letter-spacing:0;font-weight:400;font-family:var(--mono);font-size:10.5px}
.box-b{flex:1 1 auto;overflow:auto;min-height:0}
.pad{padding:14px}

/* history rail: one line per conversation, title only */
.hist{display:block;width:100%;text-align:left;border:0;border-bottom:1px solid var(--line-soft);border-radius:0;background:none;padding:7px 10px;font-size:12px;color:var(--muted);cursor:pointer;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hist:hover{background:var(--head);color:var(--accent)}
.hist.on{color:var(--accent);background:var(--head);box-shadow:inset 2px 0 0 var(--accent)}
.mini{padding:1px 7px;font-size:10.5px;border-radius:4px;line-height:1.5}

/* chart: SVG drawn to whatever type the agent chose */
#chart{display:flex;flex-direction:column;justify-content:center}
.chart-svg{display:block;margin:0 auto}
.chart-svg .grid{stroke:var(--line-soft);stroke-width:1}
.chart-svg .ax{fill:var(--faint);font-size:9.5px;font-family:var(--mono);text-anchor:middle}
.chart-svg .ax-y{text-anchor:end}
.chart-svg .ax-l{text-anchor:start;fill:var(--muted)}
.chart-svg .ax-v{text-anchor:start;fill:var(--ink);font-variant-numeric:tabular-nums}
.chart-cap{font-family:var(--mono);font-size:10.5px;color:var(--faint);padding:0 12px 8px;text-align:center}

/* transcript */
.step{padding:9px 13px;border-bottom:1px solid var(--line-soft)}
.step-k{display:block;font-family:var(--mono);font-size:10px;text-transform:uppercase;letter-spacing:.06em;color:var(--faint);margin-bottom:3px}
.step-c{font-size:13.5px;line-height:1.55;white-space:pre-wrap}
.step.human_query{background:var(--head)}
.step.human_query .step-c{font-weight:600}
.step.thought .step-c,.step.observation .step-c{color:var(--muted);font-size:12.5px}
.step.final_answer .step-c{font-size:14px}
.step.error .step-c{color:var(--bad)}
.step.error .step-k{color:var(--bad)}

.askbar{display:flex;gap:8px}
.askbar input{flex:1;font:inherit;font-size:13.5px;padding:9px 12px;border:1px solid var(--line);border-radius:6px;background:var(--panel);color:var(--ink)}
.askbar input:focus{outline:2px solid var(--accent);outline-offset:-1px}
.askbar button{padding:9px 18px;font-weight:600}

pre.sql{font-family:var(--mono);font-size:11.5px;line-height:1.5;background:var(--head);border:1px solid var(--line);border-radius:5px;padding:9px 11px;overflow-x:auto;margin:0;white-space:pre-wrap}
.warn-box{border-left:3px solid var(--bad);background:var(--panel);border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);border-radius:0 5px 5px 0;padding:12px 16px;margin-bottom:14px;color:var(--bad)}
.tools .ok{color:var(--fresh)}
.tools .warn{color:var(--ageing)}
main:has(.kai){max-width:none;padding-bottom:14px}
@media(max-width:900px){.kai{flex-direction:column;height:auto}.grip{display:none}
  #pane-left,#pane-mid,#pane-right{flex:1 1 auto}.box-chart{flex:0 0 300px}}

/* sign-in */
.signin{display:flex;align-items:center;justify-content:center;min-height:calc(100vh - 170px)}
.signin-card{background:var(--panel);border:1px solid var(--line);border-radius:10px;padding:30px 30px 26px;width:100%;max-width:330px;display:flex;flex-direction:column;gap:12px}
.signin-card h1{margin:0;font-size:22px;letter-spacing:.02em}
.signin-card p{margin:0;font-size:12.5px}
.signin-card input{font:inherit;padding:9px 11px;border:1px solid var(--line);border-radius:6px;background:var(--bg);color:var(--ink)}
.signin-card input:focus{outline:2px solid var(--accent);outline-offset:-1px;border-color:var(--accent)}
.signin-card button{padding:9px;background:var(--accent);color:#fff;border-color:var(--accent);font-weight:600}
.signin-card button:hover{color:#fff;filter:brightness(1.08)}
.signin-card .err{color:var(--old)}

/* history rail: collapsed to a spine by default */
.rail-toggle{border:0;background:none;padding:0;font:inherit;font-size:10.5px;text-transform:uppercase;letter-spacing:.07em;font-weight:700;color:var(--faint);cursor:pointer}
.rail-toggle:hover{color:var(--accent)}
#pane-left.collapsed{flex:0 0 32px}
#pane-left.collapsed .box-b,#pane-left.collapsed #new-thread{display:none}
#pane-left.collapsed .box-h{flex:1 1 auto;border-bottom:0;align-items:flex-start;justify-content:center;padding:12px 0}
#pane-left.collapsed .rail-toggle{writing-mode:vertical-rl;text-orientation:mixed}
@media(max-width:900px){#pane-left.collapsed{flex:0 0 auto}
  #pane-left.collapsed .box-h{padding:8px 12px;justify-content:flex-start}
  #pane-left.collapsed .rail-toggle{writing-mode:horizontal-tb}}

/* answer first, working folded */
.answer{padding:14px 16px;font-size:14px;line-height:1.6;border-bottom:1px solid var(--line-soft)}
.answer.err{color:var(--old)}
.working{border-bottom:1px solid var(--line-soft)}
.working>summary{cursor:pointer;padding:9px 16px;font-size:11px;text-transform:uppercase;letter-spacing:.06em;font-weight:700;color:var(--faint);list-style:none;user-select:none}
.working>summary::-webkit-details-marker{display:none}
.working>summary::before{content:"▸ ";display:inline-block;transition:transform .12s}
.working[open]>summary::before{content:"▾ "}
.working>summary:hover{color:var(--accent)}
.working>summary .muted{text-transform:none;letter-spacing:0;font-weight:400;font-family:var(--mono);font-size:10.5px;margin-left:6px}
.working .step{background:var(--head)}

/* one exchange per turn, as a message thread */
#thread{padding:14px 14px 4px}
.turn{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
/* The sender class is `bot`, not `kai`: `.kai` is the three-column layout
   wrapper, and a message marked `msg kai` also matched it, inheriting
   height:calc(100vh - 118px) and min-height:520px. Every reply was as tall as
   the page. align-items:flex-start then keeps the bubble at its content height
   rather than stretching to its row. */
.msg{display:flex;align-items:flex-start;flex:0 0 auto}
.msg.me{justify-content:flex-end}
.msg.bot{justify-content:flex-start}
.bubble{max-width:78%;flex:0 1 auto;align-self:flex-start;width:fit-content;
        padding:9px 13px;border-radius:16px;font-size:13.5px;
        line-height:1.55;white-space:pre-wrap;overflow-wrap:anywhere}
/* Purple for you, green for KAI. Both carry white text, so they are read as
   colour-on-ink rather than tinted panels, and both hold their contrast in the
   light and dark themes without being restated. */
.msg.me .bubble{background:#6d4aa8;color:#fff;border-bottom-right-radius:5px}
.msg.bot .bubble{background:#1f7a55;color:#fff;border-bottom-left-radius:5px}
.msg.bot .bubble.err{background:var(--old);color:#fff}
.bubble.thinking{display:flex;align-items:center;min-height:19px;padding:11px 15px}
.bubble .dots i{background:#fff}

/* thinking indicator: shown while a query is in flight */
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.thinking{display:flex;align-items:center;min-height:38px}
.dots{display:inline-flex;gap:5px}
.dots i{width:6px;height:6px;border-radius:50%;background:var(--accent);opacity:.28;
        animation:kai-pulse 1.15s ease-in-out infinite}
.dots i:nth-child(2){animation-delay:.16s}
.dots i:nth-child(3){animation-delay:.32s}
@keyframes kai-pulse{0%,80%,100%{opacity:.24;transform:translateY(0)}
                     40%{opacity:1;transform:translateY(-3px)}}
@media(prefers-reduced-motion:reduce){
  .dots i{animation:kai-fade 1.4s ease-in-out infinite;transform:none}
  @keyframes kai-fade{0%,100%{opacity:.3}50%{opacity:.9}}}

/* panel header actions */
.hgroup{display:flex;align-items:center;gap:8px}
.box-h .mini{text-transform:none;letter-spacing:0}

/* the empty chat: what to do, not an apology for nothing being there */
.empty{display:flex;flex-direction:column;gap:12px;padding:16px;justify-content:center}
.empty p{margin:0;font-size:13px;max-width:46ch}
.starters{display:flex;flex-wrap:wrap;gap:7px}
.starters .tpl{width:auto;border:1px solid var(--line);border-radius:14px;
               padding:6px 12px;font-size:12.5px;color:var(--muted);
               background:var(--panel);cursor:pointer}
.starters .tpl:hover{border-color:var(--accent);color:var(--accent)}

/* a long result scrolls under its own header rather than losing it */
#result table thead th{position:sticky;top:0;z-index:1;background:var(--head)}
.askbar input:disabled{opacity:.55}