/* BridgeMesh AI Systems — The Living Mesh
   Built from the brand book, August 2026.

   Deliberate decisions, and why:
   · Canvas #FAFAFA is the primary surface. The brand assigns navy the role of
     foundation, not of background. A light editorial site also happens to be
     the opposite of the dark-gradient look that marks a site as machine-made.
   · Gradient appears twice on the whole site and both are named in the brand
     book: purple->blue in the wordmark, teal->cyan in the mesh figure.
   · 3px radius. Not the 16px pill-and-card look.
   · Asymmetric editorial grid with a hanging numeral column, not centred stacks.
   · Hairlines and mono microlabels instead of decorative icon chips.
   · Type does the work: one very large headline size, then a hard drop.
*/

/* Self-hosted so the page makes no third-party request at all. One variable
   file covers 400-700, which is why there is a single @font-face. */
@font-face{
  font-family:"Plus Jakarta Sans";
  src:url("/fonts/plus-jakarta-sans.woff2") format("woff2-variations");
  font-weight:200 800;
  font-style:normal;
  font-display:swap;
}

:root{
  /* brand */
  --navy:#081020;
  --blue:#2583F6;
  --purple:#7C3AED;
  --teal:#14B8A6;
  --cyan:#06B6D4;
  --canvas:#FAFAFA;

  /* derived surfaces */
  --paper:#FFFFFF;
  --navy-2:#0E1A2E;
  --navy-3:#152341;

  /* ink — contrast-checked against --canvas */
  --ink:#0B1220;      /* 16.9:1 */
  --ink-2:#46536B;    /*  7.1:1 */
  --ink-3:#5F6B80;    /*  5.2:1 — smallest text still passes AA */
  --on-navy:#EEF2F8;
  --on-navy-2:#A6B6CB;

  /* the blue used for words, not for graphics */
  --blue-ink:#1157C4; /* 5.6:1 on canvas */

  --line:#E3E7EE;
  --line-2:#CDD4E0;
  --line-navy:#1D2B45;

  /* type scale — 7 steps, no fractional sizes. Fractional font-size is the
     most reliable tell of a stylesheet assembled value by value. */
  --t-xs:12px; --t-sm:14px; --t-base:17px; --t-md:21px;
  --t-lg:26px; --t-xl:34px; --t-2xl:58px;

  --r:3px;
  --max:1180px;
  --mono:ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,monospace;
}

*{margin:0;padding:0;box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:88px}
body{
  background:var(--canvas);color:var(--ink);
  font-family:"Plus Jakarta Sans",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.6;-webkit-font-smoothing:antialiased;
  font-feature-settings:"kern","liga";overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img,svg{max-width:100%}
::selection{background:rgba(37,131,246,.16)}
:focus-visible{outline:2px solid var(--blue-ink);outline-offset:3px;border-radius:2px}
.skip{position:absolute;left:-9999px;background:var(--navy);color:#fff;padding:10px 16px;z-index:300;font-weight:700}
.skip:focus{left:12px;top:12px}

/* ---------------- shell ---------------- */
.wrap{max-width:var(--max);margin:0 auto;padding:0 34px}
.rail{display:grid;grid-template-columns:76px minmax(0,1fr);gap:0 30px;align-items:start}
.rail>.no{
  font-family:var(--mono);font-size:12px;letter-spacing:.1em;color:var(--ink-3);
  padding-top:10px;white-space:nowrap;
}

/* ---------------- header ---------------- */
header{
  position:sticky;top:0;z-index:100;background:rgba(250,250,250,.9);
  backdrop-filter:saturate(180%) blur(10px);border-bottom:1px solid transparent;
}
header.on{border-bottom-color:var(--line)}
header .wrap{display:flex;align-items:center;gap:26px;height:72px}
.brand{display:flex;align-items:center;gap:11px;margin-right:auto}
.brand .mk{width:30px;height:30px;flex-shrink:0}
.brand .tx{display:flex;flex-direction:column;line-height:1}
.wm{font-size:21px;font-weight:700;letter-spacing:-.032em}
/* gradient 1 of 2 — purple to blue, per the brand book */
.wm em{font-style:normal;background:linear-gradient(100deg,var(--purple),var(--blue));
  -webkit-background-clip:text;background-clip:text;color:transparent}
.brand .sub{font-family:var(--mono);font-size:12px;letter-spacing:.28em;color:var(--ink-3);margin-top:4px}
nav{display:flex;align-items:center;gap:27px;font-size:14px;color:var(--ink-2)}
nav a{transition:color .15s}
nav a:hover{color:var(--ink)}
/* the CTA is navy-on-white; giving it ink colour on the current page made it
   dark text on a dark button (1.01:1 on /contact) */
nav a[aria-current="page"]:not(.nav-cta){color:var(--ink);font-weight:600}
.nav-cta[aria-current="page"]{color:#fff}
.nav-cta{
  background:var(--navy);color:#fff;font-weight:600;font-size:14px;
  padding:9px 18px;border-radius:var(--r);transition:background .16s
}
.nav-cta:hover{background:var(--navy-3);color:#fff}
.burger{display:none;background:none;border:1px solid var(--line-2);border-radius:var(--r);
  padding:9px 11px;cursor:pointer;color:var(--ink);line-height:0;min-height:44px;min-width:44px}
.burger svg{width:18px;height:18px}
@media(max-width:880px){
  nav{display:none}
  nav.open{
    display:flex;position:absolute;left:0;right:0;top:72px;flex-direction:column;
    align-items:stretch;gap:0;background:var(--paper);border-bottom:1px solid var(--line);
    padding:8px 34px 18px;box-shadow:0 18px 40px rgba(11,18,32,.09)
  }
  nav.open a{padding:14px 0;border-bottom:1px solid var(--line);font-size:16px}
  nav.open .nav-cta{margin-top:14px;text-align:center;border-bottom:none;padding:14px 18px}
  .burger{display:block}
}

/* ---------------- type ---------------- */
h1{
  font-size:clamp(var(--t-xl),5.4vw,var(--t-2xl));font-weight:600;letter-spacing:-.032em;
  line-height:1.03;margin-bottom:24px;text-wrap:balance
}
h2{font-size:clamp(var(--t-lg),3.2vw,var(--t-xl));font-weight:600;letter-spacing:-.026em;line-height:1.12;margin-bottom:18px}
h3{font-size:var(--t-md);font-weight:600;letter-spacing:-.018em;margin-bottom:8px;line-height:1.25}
p{margin-bottom:17px;color:var(--ink-2);max-width:66ch}
p:last-child{margin-bottom:0}
.lead{font-size:19px;line-height:1.52;color:var(--ink);max-width:58ch;font-weight:500}
b,strong{color:var(--ink);font-weight:650}
.eyebrow{
  font-family:var(--mono);font-size:11px;letter-spacing:.19em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:20px;display:block
}

/* ---------------- buttons ---------------- */
.btn{
  display:inline-flex;align-items:center;gap:9px;background:var(--navy);color:#fff;
  font-weight:600;font-size:17px;padding:14px 26px;border-radius:var(--r);
  border:1px solid var(--navy);transition:background .16s,transform .12s;min-height:48px;cursor:pointer
}
.btn:hover{background:var(--navy-3);color:#fff}
.btn:active{transform:translateY(1px)}
.btn.ghost{background:transparent;color:var(--ink);border-color:var(--line-2)}
.btn.ghost:hover{background:var(--paper);border-color:var(--ink-3);color:var(--ink)}
.btn svg{width:15px;height:15px}
.tlink{
  font-size:17px;color:var(--blue-ink);font-weight:600;
  border-bottom:1px solid rgba(17,87,196,.28);padding-bottom:2px;transition:border-color .15s
}
.tlink:hover{border-bottom-color:var(--blue-ink)}

/* ---------------- hero ---------------- */
.hero{padding:88px 0 88px}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.02fr) minmax(0,.98fr);gap:60px;align-items:start}
.hero h1 em{font-style:normal;color:var(--ink-3)}
.acts{display:flex;align-items:center;gap:22px;flex-wrap:wrap;margin-top:34px}
.hero-note{
  margin-top:30px;padding-top:18px;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-3);max-width:52ch
}
.fig{margin:0;padding-top:10px}
.fig svg{width:100%;height:auto;display:block}
/* set here rather than per-figure: at 390px the 9-10px attribute values were
   rendering around 7px once the viewBox scaled down */
.fig svg text{font-size:15px}
.fig svg text.cap{font-size:13px}
@media(max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .fig{max-width:460px}
}

/* ---------------- sections ---------------- */
section{padding:96px 0}
/* the only rule between sections is where two share a background */
.hero{border-bottom:1px solid var(--line)}
section.tight{padding:64px 0}
section.paper{background:var(--paper)}
section.dark{background:var(--navy);color:var(--on-navy)}
section.dark h2,section.dark h3{color:#fff}
section.dark p{color:var(--on-navy-2)}
section.dark .eyebrow,section.dark .rail>.no{color:#8698B3}
.sec-head{max-width:62ch;margin-bottom:40px}
.sec-head h2{max-width:20ch}

/* ---------------- three layers ---------------- */
.layers{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0;
  border-top:1px solid var(--line)}
.layers>div{padding:26px 30px 26px 0;border-right:1px solid var(--line)}
.layers>div+div{padding-left:30px}
.layers>div:last-child{border-right:none}
.layers .tag{display:flex;align-items:center;gap:9px;margin-bottom:9px}
.layers .dot{width:9px;height:9px;border-radius:50%;background:var(--c);flex-shrink:0}
.layers h3{margin:0}
.layers p{font-size:15px;margin:0}
section.dark .layers,section.dark .layers>div{border-color:var(--line-navy)}
@media(max-width:980px){
  .layers{grid-template-columns:1fr}
  .layers>div{border-right:none;border-bottom:1px solid var(--line);padding:22px 0!important}
  .layers>div:last-child{border-bottom:none}
  section.dark .layers>div{border-bottom-color:var(--line-navy)}
}

/* ---------------- numbered steps ---------------- */
.steps{list-style:none;counter-reset:s;border-top:1px solid var(--line)}
.steps li{
  counter-increment:s;display:grid;grid-template-columns:76px minmax(0,1fr);gap:30px;
  padding:26px 0;border-bottom:1px solid var(--line)
}
.steps li::before{
  content:counter(s,decimal-leading-zero);font-family:var(--mono);font-size:12px;
  letter-spacing:.1em;color:var(--ink-3);padding-top:4px
}
/* Without this the counter takes column 1, the h3 takes column 2, and the
   paragraph wraps to the next row — inside the 76px numeral column. */
.steps li>h3,.steps li>p{grid-column:2}
.steps p{font-size:17px;margin:0}
section.dark .steps,section.dark .steps li{border-color:var(--line-navy)}
section.dark .steps li::before{color:#8698B3}
@media(max-width:620px){
  .steps li{grid-template-columns:1fr;gap:8px}
  .steps li::before{padding-top:0}
}

/* ---------------- agents ---------------- */
/* 8 cards with a 4/2/1 ladder: the column count is always a divisor, so the
   grid never leaves an empty cell showing the container colour as a grey slab.
   auto-fit also made the count go UP when the window got narrower, because
   .rail collapses at 880px and hands the grid more room. */
.agents{list-style:none;display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line)}
@media(max-width:1100px){.agents{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(max-width:620px){.agents{grid-template-columns:1fr}}
.agents li{background:var(--paper);padding:24px 22px}
.agents li.soon{background:var(--canvas)}
.agents li.soon h3{color:var(--ink-3)}
.agents .ico{width:22px;height:22px;color:var(--ink-3);margin-bottom:13px;display:block}
.agents li.soon .ico{opacity:.5}
.agents p{font-size:14px;margin:0;color:var(--ink-3);line-height:1.5}

/* ---------------- comparison ---------------- */
.vs{border-top:1px solid var(--line)}
.vs .row{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:34px;
  padding:22px 0;border-bottom:1px solid var(--line);align-items:baseline}
.vs .row h3{margin:0;font-size:16px;color:var(--ink)}
.vs .row.us h3{color:var(--blue-ink)}
.vs .row p{margin:0;font-size:17px}
@media(max-width:700px){.vs .row{grid-template-columns:1fr;gap:6px}}

/* ---------------- transcript ---------------- */
.thread{border:1px solid var(--line);background:var(--paper);border-radius:var(--r);overflow:hidden}
.turn{padding:22px 26px;border-bottom:1px solid var(--line)}
.turn:last-child{border-bottom:none}
.turn.q{background:var(--canvas)}
.turn .who{
  font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--ink-3);
  margin-bottom:9px;display:block
}
.turn.a .who{color:#0E7C6F}
.turn p{font-size:17px;max-width:none}
.turn ul{margin:12px 0 0;padding-left:19px;color:var(--ink-2);font-size:17px}
.turn li{margin-bottom:7px}
.turn .src{margin-top:14px;padding-top:12px;border-top:1px solid var(--line);
  font-size:14px;color:var(--ink-3);max-width:none}
.cap{font-size:14px;color:var(--ink-3);margin-bottom:16px}

/* ---------------- guard note ---------------- */
.guard{margin-top:38px;padding:24px 26px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--r)}
.guard .eyebrow{margin-bottom:9px;color:var(--blue-ink)}
.guard p{margin:0;font-size:17px}
section.dark .guard{background:var(--navy-2);border-color:var(--line-navy)}
section.dark .guard .eyebrow{color:var(--teal)}

/* ---------------- founders ---------------- */
.people{display:grid;grid-template-columns:repeat(auto-fit,minmax(310px,1fr));gap:1px;
  background:var(--line);border:1px solid var(--line)}
.person{background:var(--paper);padding:30px 28px}
.person .initials{
  width:52px;height:52px;border-radius:50%;display:grid;place-items:center;
  font-weight:750;font-size:17px;letter-spacing:-.02em;color:#fff;margin-bottom:18px
}
.person h3{font-size:19px;margin-bottom:3px}
.person .role{font-size:14px;color:var(--ink-3);margin-bottom:15px;font-weight:500}
.person p{font-size:15px;margin-bottom:13px}
.person .li{display:inline-flex;align-items:center;gap:7px;font-size:14px;color:var(--blue-ink);font-weight:600}
.person .li svg{width:15px;height:15px}

/* ---------------- facts ---------------- */
.facts{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:0;
  border-top:1px solid var(--line)}
.facts>div{padding:20px 24px 20px 0;border-right:1px solid var(--line)}
.facts>div+div{padding-left:24px}
.facts>div:last-child{border-right:none}
.facts dt{font-family:var(--mono);font-size:12px;letter-spacing:.13em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:7px}
.facts dd{font-size:17px;color:var(--ink-2);line-height:1.5}
@media(max-width:700px){
  .facts>div{border-right:none;border-bottom:1px solid var(--line);padding:16px 0!important}
  .facts>div:last-child{border-bottom:none}
}

/* ---------------- cta band ---------------- */
/* two navy bands in a row merged into one void; the seam is the transition */
section.dark + .cta{border-top:1px solid var(--line-navy);padding-top:64px}
.cta{padding:96px 0;background:var(--navy);color:var(--on-navy);border-bottom:none}
.cta .rail>.no,.cta .eyebrow{color:#8698B3}
.cta h2{color:#fff;max-width:17ch}
.cta p{color:var(--on-navy-2);font-size:21px;max-width:54ch}
.cta .btn{background:#fff;color:var(--navy);border-color:#fff}
.cta .btn:hover{background:#E6ECF6;color:var(--navy)}
.cta .acts{margin-top:30px}
.cta .tlink{color:#93C2FF;border-bottom-color:rgba(147,194,255,.32)}
.cta .tlink:hover{border-bottom-color:#93C2FF}

/* ---------------- forms ---------------- */
.form{max-width:560px}
.field{margin-bottom:22px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:7px}
.field .hint{font-weight:400;color:var(--ink-3);font-size:14px}
.field input,.field select,.field textarea{
  width:100%;font:inherit;font-size:16px;color:var(--ink);background:var(--paper);
  border:1px solid var(--line-2);border-radius:var(--r);padding:12px 14px;
  transition:border-color .15s,box-shadow .15s;min-height:48px
}
.field textarea{min-height:132px;resize:vertical;line-height:1.55}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%235F6B80' stroke-width='2' stroke-linecap='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;background-size:17px;padding-right:42px}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--blue-ink);box-shadow:0 0 0 3px rgba(17,87,196,.13)}
.field input[aria-invalid="true"],.field select[aria-invalid="true"],.field textarea[aria-invalid="true"]{
  border-color:#B3372A;background:#FEF8F7}
.field input[aria-invalid="true"]:focus,.field textarea[aria-invalid="true"]:focus,
.field select[aria-invalid="true"]:focus{box-shadow:0 0 0 3px rgba(179,55,42,.13)}
.err{display:none;font-size:14px;color:#98241A;margin-top:6px;font-weight:500}
.err.on{display:flex;gap:6px;align-items:flex-start}
.err svg{width:14px;height:14px;flex-shrink:0;margin-top:2px}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.formnote{font-size:14px;color:var(--ink-3);margin-top:16px;max-width:52ch}
.status{margin-top:20px;padding:15px 17px;border-radius:var(--r);font-size:15px;display:none}
.status.on{display:block}
.status.ok{background:#ECFAF6;border:1px solid #A8E3D6;color:#0A5449}
.status.bad{background:#FDF1EF;border:1px solid #EFC3BB;color:#8E241A}

/* ---------------- footer ---------------- */
footer{background:var(--canvas);padding:44px 0 40px;font-size:14px;color:var(--ink-3)}
footer .foot{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(2,minmax(0,1fr));gap:34px}
footer .foot h4{font-family:var(--mono);font-size:12px;letter-spacing:.15em;text-transform:uppercase;
  color:var(--ink-3);margin-bottom:13px;font-weight:500}
footer .foot ul{list-style:none}
footer .foot li{margin-bottom:9px}
footer .foot a{color:var(--ink-2)}
footer .foot a:hover{color:var(--ink)}
footer .foot p{font-size:14px;color:var(--ink-3);max-width:34ch;margin-bottom:12px}
.legal{margin-top:36px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;font-size:14px}
@media(max-width:760px){footer .foot{grid-template-columns:1fr;gap:28px}}

/* ---------------- 404 ---------------- */
.oops{padding:110px 0 120px}
.oops .code{font-family:var(--mono);font-size:12px;letter-spacing:.2em;color:var(--ink-3);margin-bottom:20px}

/* ---------------- responsive base ---------------- */
@media(max-width:880px){
  .rail{grid-template-columns:1fr;gap:0}
  .rail>.no{padding-top:0;margin-bottom:14px}
}
@media(max-width:760px){
  body{font-size:17px}
  .wrap{padding:0 20px}
  nav.open{padding-left:20px;padding-right:20px}
  section{padding:58px 0}
  .hero{padding:52px 0 58px}
  .cta{padding:64px 0}
  .lead{font-size:19px}
  .acts{gap:16px}
  .acts .btn{width:100%;justify-content:center}
  .turn{padding:18px 18px}
}

/* ================================================================
   The Brain — live demo agent
   The panel stays navy on a light site: the brand gives navy the role
   of foundation, and it reads as a different surface, not a bolt-on.
   Not a floating round bubble — a docked tab with a hairline.
   ================================================================ */
.bm-tab{
  position:fixed;right:22px;bottom:22px;z-index:150;display:flex;align-items:center;gap:10px;
  background:var(--navy);color:#fff;border:1px solid var(--navy);border-radius:var(--r);
  padding:12px 18px 12px 15px;font:inherit;font-size:14px;font-weight:650;cursor:pointer;
  box-shadow:0 10px 28px rgba(11,18,32,.22);transition:background .16s,transform .12s;min-height:46px
}
.bm-tab:hover{background:var(--navy-3)}
.bm-tab:active{transform:translateY(1px)}
.bm-tab .bm-live{
  width:7px;height:7px;border-radius:50%;background:var(--teal);flex-shrink:0;
  box-shadow:0 0 0 0 rgba(20,184,166,.6);animation:bm-pulse 2.8s ease-out infinite
}
@keyframes bm-pulse{
  0%{box-shadow:0 0 0 0 rgba(20,184,166,.55)}
  70%{box-shadow:0 0 0 8px rgba(20,184,166,0)}
  100%{box-shadow:0 0 0 0 rgba(20,184,166,0)}
}
.bm-tab[hidden]{display:none}

.bm-scrim{
  position:fixed;inset:0;z-index:160;background:rgba(8,16,32,.42);
  opacity:0;pointer-events:none;transition:opacity .2s
}
.bm-scrim.open{opacity:1;pointer-events:auto}

.bm-panel{
  position:fixed;right:22px;bottom:22px;z-index:170;width:min(432px,calc(100vw - 44px));
  height:min(650px,calc(100vh - 44px));display:flex;flex-direction:column;
  background:var(--navy);border:1px solid var(--navy-3);border-radius:var(--r);
  box-shadow:0 26px 68px rgba(8,16,32,.4);overflow:hidden;
  opacity:0;transform:translateY(10px) scale(.99);pointer-events:none;
  transition:opacity .2s,transform .2s
}
.bm-panel.open{opacity:1;transform:none;pointer-events:auto}

.bm-head{
  display:flex;align-items:center;gap:11px;padding:14px 13px 14px 17px;
  border-bottom:1px solid var(--line-navy);background:var(--navy-2);flex-shrink:0
}
.bm-head svg.bm-mark{width:23px;height:23px;flex-shrink:0}
.bm-head .bm-ttl{font-weight:700;font-size:15px;letter-spacing:-.018em;line-height:1.25;color:#fff}
.bm-head .bm-sub{
  font-family:var(--mono);font-size:12px;letter-spacing:.16em;text-transform:uppercase;
  color:#8698B3;margin-top:3px
}
.bm-head .bm-spacer{flex:1}
.bm-ico{
  background:none;border:1px solid transparent;border-radius:var(--r);color:#8698B3;
  cursor:pointer;padding:8px;line-height:0;transition:color .15s,border-color .15s;
  min-width:38px;min-height:38px;display:grid;place-items:center
}
.bm-ico:hover{color:#fff;border-color:var(--line-navy)}
.bm-ico svg{width:16px;height:16px}

.bm-log{
  flex:1;overflow-y:auto;overscroll-behavior:contain;padding:20px 17px 10px;
  display:flex;flex-direction:column;gap:17px;
  scrollbar-width:thin;scrollbar-color:#26364F transparent
}
.bm-log::-webkit-scrollbar{width:8px}
.bm-log::-webkit-scrollbar-thumb{background:#26364F;border-radius:8px}

.bm-m{font-size:15px;line-height:1.6;max-width:100%;overflow-wrap:anywhere}
.bm-m p{margin:0 0 10px;max-width:none;color:#C6D2E2;font-size:15px}
.bm-m p:last-child{margin-bottom:0}
.bm-m ul{margin:0 0 10px;padding-left:19px;color:#C6D2E2}
.bm-m li{margin-bottom:5px}
.bm-m strong{color:#fff;font-weight:650}
.bm-m code{font-family:var(--mono);font-size:.9em;background:var(--navy-3);padding:1px 5px;border-radius:2px;color:#fff}
.bm-m a{color:#6FE3D2;border-bottom:1px solid rgba(111,227,210,.4)}
.bm-m.bot::before{
  content:"BRAIN";display:block;font-family:var(--mono);font-size:12px;
  letter-spacing:.17em;color:var(--teal);margin-bottom:8px
}
.bm-m.you{
  background:var(--navy-3);border:1px solid #22355A;border-radius:var(--r);
  padding:11px 14px;align-self:flex-end;max-width:88%;color:#fff;font-weight:500
}
.bm-m.err::before{content:"";display:none}
.bm-m.err p{color:#F5B0A6}

.bm-cursor{
  display:inline-block;width:7px;height:15px;background:var(--teal);
  vertical-align:-2px;margin-left:2px;animation:bm-blink 1s steps(2) infinite
}
@keyframes bm-blink{0%,50%{opacity:1}50.01%,100%{opacity:0}}
.bm-think{display:flex;gap:5px;align-items:center;padding-top:3px}
.bm-think i{width:6px;height:6px;border-radius:50%;background:#7E90AC;animation:bm-bob 1.25s ease-in-out infinite}
.bm-think i:nth-child(2){animation-delay:.16s}
.bm-think i:nth-child(3){animation-delay:.32s}
@keyframes bm-bob{
  0%,60%,100%{opacity:.3;transform:translateY(0)}
  30%{opacity:1;transform:translateY(-3px)}
}

.bm-starters{border-top:1px solid var(--line-navy);padding-top:16px;margin-top:2px}
.bm-starters>span{
  display:block;font-family:var(--mono);font-size:12px;letter-spacing:.16em;
  text-transform:uppercase;color:#8698B3;margin-bottom:11px
}
.bm-starters button{
  display:flex;width:100%;align-items:flex-start;gap:10px;text-align:left;
  background:none;border:1px solid var(--line-navy);border-radius:var(--r);color:#B7C5D8;
  font:inherit;font-size:14px;line-height:1.45;padding:12px 13px;margin-bottom:8px;cursor:pointer;
  transition:border-color .15s,color .15s,background .15s
}
.bm-starters button:hover{border-color:var(--teal);color:#fff;background:var(--navy-2)}
.bm-starters button svg{width:14px;height:14px;flex-shrink:0;margin-top:3px;color:#7E90AC}
.bm-starters button:hover svg{color:var(--teal)}

.bm-foot{flex-shrink:0;border-top:1px solid var(--line-navy);background:var(--navy-2);padding:12px 13px}
.bm-row{display:flex;align-items:flex-end;gap:9px}
.bm-in{
  flex:1;background:var(--navy);border:1px solid var(--line-navy);border-radius:var(--r);
  color:#fff;font:inherit;font-size:16px;line-height:1.5;padding:11px 13px;resize:none;
  max-height:132px;transition:border-color .15s
}
.bm-in::placeholder{color:#7E90AC}
.bm-in:focus{outline:none;border-color:var(--teal)}
.bm-in:disabled{opacity:.55}
.bm-send{
  background:var(--teal);color:#04211D;border:1px solid var(--teal);border-radius:var(--r);
  cursor:pointer;padding:11px 13px;line-height:0;transition:background .15s,opacity .15s;
  min-width:44px;min-height:44px;display:grid;place-items:center
}
.bm-send:hover:not(:disabled){background:#19D0BB}
.bm-send:disabled{opacity:.4;cursor:default}
.bm-send svg{width:17px;height:17px}
.bm-note{font-size:12px;color:#7E90AC;margin:9px 2px 0;line-height:1.45}

@media(max-width:560px){
  .bm-tab{right:14px;bottom:14px;padding:11px 15px 11px 13px;font-size:14px}
  .bm-panel{
    right:0;left:0;bottom:0;width:100%;height:90vh;height:90dvh;
    border-radius:var(--r) var(--r) 0 0;border-left:none;border-right:none;border-bottom:none;
    transform:translateY(16px)
  }
}
@media(prefers-reduced-motion:reduce){
  .bm-tab .bm-live,.bm-cursor,.bm-think i{animation:none}
}

/* screen-reader-only announcer for the streamed reply */
.bm-sr,.sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0 0 0 0);clip-path:inset(50%);white-space:nowrap;border:0
}
/* WCAG 1.4.11: an interactive boundary needs 3:1, and #CDD4E0 on white is 1.5:1 */
.field input,.field select,.field textarea{border-color:#98A3B5}
.field input::placeholder,.field textarea::placeholder{color:#6B7688;opacity:1}
.bm-in::placeholder{color:#8CA0BA;opacity:1}
/* 44px minimum hit area — the panel close button is the way out of a sheet on mobile */
.bm-ico{min-width:44px;min-height:44px}
.bm-note{font-size:12px;color:#97A7BD}

/* Touch targets: on a phone the footer and inline links were 18-30px tall.
   Padding grows the hit area without changing how the type looks. */
@media(max-width:760px){
  footer .foot li{margin-bottom:2px}
  footer .foot li a{display:inline-block;padding:11px 0;min-height:44px}
  footer .foot ul li{line-height:1.4}
  .tlink{display:inline-block;padding:10px 0;min-height:44px}
  .legal{gap:12px}
  .person .li{padding:11px 0;min-height:44px}
}

/* the long CTA qualifier is desktop-only; on a phone it wrapped the button */
@media(max-width:560px){ .wide{display:none} }
/* the brand lockup is a link and was 37px tall on a phone */
@media(max-width:760px){ .brand{padding:6px 0} }
/* the privacy link inside the panel footnote was a 15px tap target */
.bm-note a{display:inline-block;padding:14px 0;margin:-8px 0}
/* On the contact page the left column is short and the form is tall; centring
   them left a dead area above the headline that reads as a mistake. */
.hero.top .hero-grid{align-items:start}
.hero.top .hero-grid>div:first-child{padding-top:6px}

/* On a phone the figure is ~350px against a 480-560 unit viewBox, so a 15px
   label renders around 9px. Diagram type has to grow relative to the drawing
   when the drawing shrinks — measured, not guessed. */
@media(max-width:760px){
  .fig svg text{font-size:21px}
  .fig svg text.cap{font-size:18px}
}