/* Hermes web chat — Command/Inspect surface.
   One content column, warm dark neutrals, one accent, hairlines instead of boxes.
   Type is the system UI face on purpose (no webfont: CSP is self-only and the app
   must work offline); hierarchy comes from scale, weight, spacing and contrast. */

:root{
  /* surfaces: warm neutrals, four steps of elevation */
  --bg:#191817;
  --surface:#1f1e1c;
  --surface-2:#252320;
  --surface-3:#2c2925;
  --line:#302d29;
  --line-soft:#272522;
  /* ink */
  --ink:#ece8e1;
  --ink-2:#c3bdb3;
  --muted:#9a938a;
  --faint:#756f67;
  /* accents: amber is Hermes, cool blue is machine work */
  --accent:#dda05e;
  --accent-ink:#20180c;
  --machine:#8fb3cd;
  --danger:#e2857a;
  --ok:#93c39a;
  /* type */
  --sans:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
  --col:760px;              /* the one content column */
  --r-sm:8px; --r:12px; --r-lg:16px;
  --sh:0 1px 2px #0006,0 8px 24px #0004;
}

*{box-sizing:border-box}
html,body{height:100%}
body{margin:0;background:var(--bg);color:var(--ink);
  font:15px/1.6 var(--sans);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
  font-feature-settings:"tnum" 1;overscroll-behavior:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
a{color:var(--machine);text-underline-offset:2px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
@media (prefers-reduced-motion:reduce){*{animation-duration:.01ms !important;transition-duration:.01ms !important}}

/* ── sign in ─────────────────────────────────────────────── */
body.login{display:grid;place-items:center;
  background:radial-gradient(1000px 520px at 50% -8%,#242220 0%,var(--bg) 62%)}
.card{width:min(92vw,368px);background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px 26px 24px;box-shadow:var(--sh)}
.card h1{margin:14px 0 6px;font-size:19px;font-weight:600;letter-spacing:-.01em}
.card p.sub{margin:0 0 20px;color:var(--muted);font-size:13.5px}
.card input{width:100%;padding:11px 13px;border-radius:10px;border:1px solid var(--line);
  background:#141312;color:var(--ink);font:inherit;outline:none;transition:border-color .15s}
.card input:focus{border-color:var(--accent)}
.card button{margin-top:14px;width:100%;padding:11px;border-radius:10px;background:var(--accent);
  color:var(--accent-ink);font-weight:650;transition:filter .15s}
.card button:hover{filter:brightness(1.06)}
.card button:disabled{opacity:.55;cursor:not-allowed}
.err{margin:12px 0 0;color:var(--danger);font-size:13px;min-height:18px}
.lock{display:flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600}
.lock .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 12px #dda05e77}

/* ── shell ───────────────────────────────────────────────── */
#app{display:flex;height:100dvh}
#side{width:264px;flex:0 0 264px;background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;min-height:0}
.side-top{padding:18px 14px 12px}
.brand{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:640;letter-spacing:-.01em}
.brand .dot{width:9px;height:9px;border-radius:50%;background:var(--accent);
  box-shadow:0 0 12px #dda05e66;flex:none}
.newbtn{margin-top:16px;width:100%;display:flex;align-items:center;gap:8px;
  border:1px solid var(--line);border-radius:10px;padding:9px 12px;background:var(--surface-2);
  font-size:14px;color:var(--ink-2);transition:border-color .15s,color .15s,background .15s}
.newbtn:hover{border-color:#463f38;color:var(--ink);background:var(--surface-3)}
.newbtn .plus{color:var(--accent);font-weight:600}
.threads{flex:1;overflow-y:auto;padding:6px 10px 10px;scrollbar-width:thin}
.group{padding:16px 10px 6px;font-size:10.5px;letter-spacing:.09em;text-transform:uppercase;
  color:var(--muted)}
.trow{position:relative;display:block;width:100%;text-align:left;padding:8px 10px 8px 12px;
  border-radius:9px;color:var(--ink-2);font-size:13.5px;white-space:nowrap;overflow:hidden;
  text-overflow:ellipsis;transition:background .12s,color .12s}
.trow:hover{background:var(--surface-2);color:var(--ink)}
.trow.on{background:var(--surface-3);color:var(--ink);font-weight:540}
.trow.on::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:2px;
  border-radius:2px;background:var(--accent)}
.trow.empty{color:var(--faint);font-style:italic}
.trow .when{float:right;font-size:11px;color:var(--faint);margin-left:10px;
  font-variant-numeric:tabular-nums}
.side-foot{padding:12px 16px 16px;border-top:1px solid var(--line);display:flex;
  align-items:center;justify-content:space-between;gap:8px}
.side-foot .who{font-size:11.5px;color:var(--muted);font-family:var(--mono);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.linkbtn{color:var(--ink-2);font-size:12px;border:1px solid var(--line);border-radius:8px;
  padding:4px 9px;transition:color .15s,border-color .15s}
.linkbtn:hover{color:var(--ink);border-color:#463f38}

#main{flex:1;display:flex;flex-direction:column;min-width:0;min-height:0;position:relative;
  background:radial-gradient(900px 400px at 70% -10%,#211f1c 0,var(--bg) 60%)}

/* header: same column + gutter as the messages */
#top{border-bottom:1px solid var(--line-soft);background:#1c1b19e6;backdrop-filter:blur(8px);
  position:sticky;top:0;z-index:5}
.top-in{max-width:var(--col);margin:0 auto;padding:12px 24px;display:flex;align-items:center;
  gap:12px;width:100%}
.titles{flex:1;min-width:0}
.titles h1{margin:0;font-size:15px;font-weight:600;letter-spacing:-.01em;white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis}
#meta{font-size:11.5px;color:var(--faint);font-family:var(--mono);white-space:nowrap;
  overflow:hidden;text-overflow:ellipsis;margin-top:1px}
.iconbtn{display:none;font-size:17px;padding:6px 9px;border-radius:8px;color:var(--muted)}
.stopbtn{background:#3a2b26;border:1px solid #5b4038;color:#f0c0b3;border-radius:9px;
  padding:6px 13px;font-size:12.5px;transition:background .15s}
.stopbtn:hover{background:#4a352e}

/* ── messages ────────────────────────────────────────────── */
.scroll{flex:1;overflow-y:auto;scrollbar-gutter:stable}
.scroll::-webkit-scrollbar{width:10px}
.scroll::-webkit-scrollbar-thumb{background:#332f2b;border-radius:99px;
  border:3px solid transparent;background-clip:content-box}
.scroll::-webkit-scrollbar-thumb:hover{background:#3f3a35;background-clip:content-box}
.msgs{max-width:var(--col);margin:0 auto;padding:28px 24px 150px;width:100%}

.turn{display:flex;gap:14px;padding:20px 0 4px}
.turn + .turn{margin-top:12px}
.ava{flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  font-size:12px;font-weight:600;margin-top:1px;background:var(--surface-2);color:var(--muted);
  border:1px solid var(--line)}
.turn.assistant .ava{background:#2a2419;color:var(--accent);border-color:#3d3325}
.turn.user .ava{background:var(--surface-2);color:var(--ink-2)}
.body{flex:1;min-width:0}
.who{font-size:12.5px;font-weight:600;color:var(--ink-2);margin-bottom:6px;display:flex;
  align-items:baseline;gap:8px}
.who .when{font-size:11px;color:var(--faint);font-weight:400;font-variant-numeric:tabular-nums}
.txt{white-space:pre-wrap;overflow-wrap:anywhere}

/* the answer outranks the trace */
.answer{margin-top:1px}
.answer + .meta{margin-top:10px}
.answer.indent{margin-top:12px}

/* traces: a rail, not a box */
.trace{display:flex;flex-direction:column;gap:5px;margin:0 0 10px}
.trace .rail{border-left:1.5px solid var(--line);padding-left:14px;margin-left:2px}
/* one disclosure level per turn: opening the trace shows the thinking itself */
.reason .rhead{display:flex;align-items:center;gap:7px;color:var(--machine);font-size:12.5px;
  padding:1px 0}
.reason .rhead .rlen{color:var(--faint);font-size:11px;margin-left:auto;
  font-variant-numeric:tabular-nums}
.reason .rtext{margin:6px 0 4px;color:var(--ink-2);font-size:13px;line-height:1.62;
  white-space:pre-wrap;overflow-wrap:anywhere;max-height:340px;overflow:auto;
  border-left:2px solid #383430;padding-left:12px}

details.tool{border:0;background:none}
details.tool>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;
  color:var(--ink-2);font-size:12.5px;padding:1px 0;min-width:0}
details.tool>summary::-webkit-details-marker{display:none}
details.tool>summary:hover{color:var(--ink)}
details.tool .nm{color:var(--machine);font-family:var(--mono);font-size:12px;flex:none}
details.tool[data-err="1"] .nm{color:var(--danger)}
details.tool .args{color:var(--faint);font-family:var(--mono);font-size:11.5px;min-width:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
details.tool .dur{color:var(--faint);font-size:11.5px;margin-left:auto;flex:none;
  font-variant-numeric:tabular-nums}
details.tool pre{margin:7px 0 3px;padding:10px 12px;background:#141312;border:1px solid var(--line);
  border-radius:var(--r-sm);overflow-x:auto;font-family:var(--mono);font-size:12px;
  color:var(--ink-2);line-height:1.55}
details.tracefold{border:0;background:none}
details.tracefold>summary{cursor:pointer;list-style:none;display:flex;align-items:center;gap:8px;
  color:var(--muted);font-size:12.5px;padding:1px 0}
details.tracefold>summary::-webkit-details-marker{display:none}
details.tracefold>summary:hover{color:var(--ink-2)}
details.tracefold[open]>summary{margin-bottom:7px}
details.tracefold>summary .chev{flex:none;width:6px;height:6px;margin-right:2px;
  border-right:1.5px solid var(--faint);border-bottom:1.5px solid var(--faint);
  transform:rotate(-45deg);transition:transform .15s,border-color .15s}
details.tracefold[open]>summary .chev{transform:rotate(45deg);border-color:var(--muted)}
details.tracefold>summary .lbl{color:var(--muted)}
details.tracefold[open]>summary .lbl{color:var(--ink-2)}
.spin{width:11px;height:11px;border:1.6px solid var(--line);border-top-color:var(--accent);
  border-radius:50%;animation:spin .8s linear infinite;flex:none}
@keyframes spin{to{transform:rotate(360deg)}}
.thinking{display:flex;gap:5px;align-items:center;color:var(--muted);font-size:13px;padding:1px 0}
.thinking i{width:5px;height:5px;border-radius:50%;background:var(--accent);opacity:.4;
  animation:pulse 1.2s infinite}
.thinking i:nth-child(2){animation-delay:.18s}.thinking i:nth-child(3){animation-delay:.36s}
@keyframes pulse{0%,100%{opacity:.25;transform:translateY(0)}50%{opacity:1;transform:translateY(-2px)}}
.cursor{display:inline-block;width:7px;height:14px;background:var(--accent);margin-left:2px;
  vertical-align:-2px;border-radius:1px;animation:blink 1.05s steps(2,start) infinite}
@keyframes blink{0%,49%{opacity:1}50%,100%{opacity:0}}

/* meta: three numbers on the line, the rest one click away */
.meta{margin-top:11px;display:flex;align-items:center;gap:9px;font-size:11px;color:var(--faint);
  font-variant-numeric:tabular-nums;flex-wrap:wrap;opacity:0;transition:opacity .15s}
.turn:hover .meta,.turn:focus-within .meta,.meta.open,.meta.live,.turn:last-child .meta{opacity:1}
@media (hover:none){.meta{opacity:1}}
.meta .sep{opacity:.45}
.meta .err{color:var(--danger)}
.meta .more{border:1px solid var(--line);border-radius:6px;padding:0 5px;color:var(--faint);
  font-size:11px;line-height:16px}
.meta .more:hover{color:var(--ink-2);border-color:#463f38}
.meta .extra{display:none;gap:9px;align-items:center;font-family:var(--mono)}
.meta.open .extra{display:inline-flex}
.meta .extra{font-size:11px}

.muted{color:var(--muted);font-size:13px}
/* ── markdown ────────────────────────────────────────────── */
.md{overflow-wrap:anywhere}
.md > :first-child{margin-top:0}
.md > :last-child{margin-bottom:0}
.md h1,.md h2,.md h3{margin:18px 0 8px;line-height:1.32;letter-spacing:-.01em;font-weight:620}
.md h1{font-size:19px}.md h2{font-size:17px}.md h3{font-size:15.5px}
.md p{margin:9px 0}
.md ul,.md ol{margin:9px 0;padding-left:22px}
.md li{margin:3px 0}
.md code{font-family:var(--mono);font-size:13px;background:var(--surface-2);padding:1.5px 5px;
  border-radius:5px;color:#e7d3b8}
.md pre{background:#141312;border:1px solid var(--line);border-radius:var(--r-sm);padding:12px 14px;
  overflow-x:auto;margin:12px 0}
.md pre code{background:none;padding:0;font-size:12.5px;line-height:1.6;color:var(--ink-2)}
.md table{border-collapse:collapse;margin:14px 0;font-size:13.5px;display:block;overflow-x:auto;
  max-width:100%}
.md th,.md td{padding:8px 16px 8px 0;text-align:left;border:0}
.md th{font-weight:600;color:var(--ink);border-bottom:1px solid #3d3833;font-size:11.5px;
  letter-spacing:.05em;text-transform:uppercase}
.md tr:first-child th{padding-bottom:6px}
.md td{color:var(--ink-2)}
.md td:first-child,.md th:first-child{color:var(--ink)}
.md th.num,.md td.num{text-align:right;font-family:var(--mono);font-variant-numeric:tabular-nums;
  font-size:12.5px}
.md th.num{font-family:var(--sans);font-size:11.5px}
.md td:last-child{}
.md th:last-child,.md td:last-child{padding-right:0}
.md blockquote{margin:12px 0;padding:2px 0 2px 14px;border-left:2px solid var(--line);
  color:var(--muted)}
.md hr{border:0;border-top:1px solid var(--line);margin:20px 0}
.md a{color:var(--machine)}

/* ── composer ────────────────────────────────────────────── */
.composer{position:absolute;left:0;right:0;bottom:0;
  background:linear-gradient(180deg,#19181700,var(--bg) 58%);padding:10px 24px 18px;
  display:flex;justify-content:center}
.cwrap{width:100%;max-width:var(--col);background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:10px 12px 8px 14px;display:flex;flex-direction:column;
  gap:4px;box-shadow:var(--sh);transition:border-color .15s}
.cwrap:focus-within{border-color:#463f38}
.crow{display:flex;align-items:center;gap:8px;min-width:0}
.crow.main{align-items:flex-end;gap:8px}
#input{flex:1;border:0;background:none;color:var(--ink);font:inherit;resize:none;outline:none;
  max-height:200px;padding:5px 0 4px;line-height:1.55}
#input::placeholder{color:var(--faint)}
.crow.tools{justify-content:flex-start;gap:6px}
.pick{position:relative;display:inline-flex;align-items:center;gap:6px;font-size:12px;
  color:var(--muted);border:1px solid var(--line);border-radius:99px;padding:3px 9px 3px 10px;
  background:var(--surface-2);transition:border-color .15s,color .15s}
.pick:hover{border-color:#463f38;color:var(--ink-2)}
.pick .k{color:var(--muted)}
.pick select{appearance:none;border:0;background:none;color:inherit;font:inherit;cursor:pointer;
  outline:none;padding-right:1px}
.pick select option{background:var(--surface-2);color:var(--ink)}
.pick .chev{color:var(--faint);font-size:9px;margin-left:-3px}
.tgl{display:inline-flex;align-items:center;gap:7px;font-size:12px;color:var(--ink-2);
  border:1px solid var(--line);border-radius:99px;padding:3px 11px 3px 7px;background:var(--surface-2);
  transition:border-color .15s,color .15s}
.tgl[aria-pressed="true"]{color:var(--ink-2)}
.tgl:hover{border-color:#463f38}
.tgl .sw{position:relative;width:24px;height:14px;border-radius:99px;background:#332f2b;
  border:1px solid var(--line);transition:background .15s,border-color .15s;flex:none}
.tgl .sw::after{content:"";position:absolute;top:1px;left:1px;width:10px;height:10px;
  border-radius:50%;background:#8c857c;transition:transform .15s,background .15s}
.tgl[aria-pressed="true"] .sw{background:#3d4c56;border-color:#4c5f6b}
.tgl[aria-pressed="true"] .sw::after{transform:translateX(10px);background:var(--machine)}
.send{width:34px;height:34px;border-radius:50%;background:var(--accent);color:var(--accent-ink);
  font-weight:800;flex:none;display:grid;place-items:center;transition:filter .15s,transform .12s}
.send:hover:not([disabled]){filter:brightness(1.08)}
.send:active:not([disabled]){transform:scale(.94)}
.send[disabled]{background:transparent;color:#5a544c;border:1px solid var(--line);
  opacity:.7;cursor:not-allowed;box-shadow:none}
.send:not([disabled]){box-shadow:0 0 0 1px #dda05e33,0 2px 10px #dda05e1a}
.status{position:absolute;left:50%;transform:translateX(-50%);bottom:106px;
  background:var(--surface-2);border:1px solid var(--line);border-radius:99px;padding:6px 14px;
  font-size:12.5px;color:var(--muted);box-shadow:var(--sh);max-width:80vw;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}
.status.bad{border-color:#5b4038;color:#f0c0b3}
.jump{position:absolute;right:26px;bottom:112px}
.jump button{background:var(--surface-2);border:1px solid var(--line);border-radius:99px;
  padding:6px 12px;font-size:12.5px;color:var(--ink-2);box-shadow:var(--sh)}

/* ── narrow ──────────────────────────────────────────────── */
@media (max-width:860px){
  #side{position:fixed;inset:0 auto 0 0;z-index:20;transform:translateX(-100%);
    transition:transform .18s ease;box-shadow:0 0 40px #000a;width:282px;flex-basis:282px}
  body.nav #side{transform:none}
  .iconbtn{display:block}
  .top-in,.msgs{padding-left:16px;padding-right:16px}
  .msgs{padding-top:18px;padding-bottom:160px}
  .composer{padding:8px 12px 20px}
  .send{width:42px;height:42px}
  .newbtn,.iconbtn,.linkbtn{min-height:38px}
  /* thumb-sized secondary controls, with room between them */
  .crow.tools{gap:10px;margin-top:4px}
  .meta{opacity:1}                      /* no hover on touch: always show the numbers */
  .pick,.tgl{min-height:40px;padding:6px 14px;align-items:center}
  .tgl{padding-left:10px}
  #input{padding:8px 0 6px}
}