@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;500;600&family=IBM+Plex+Sans:wght@400;500;600;700&family=Saira+Condensed:wght@500;600;700&display=swap');

/* ==========================================================================
   FAAN.pk Engineering — single-file site
   Palette is token-driven so the page works in three viewer states:
   1. bare :root                    -> light (default)
   2. prefers-color-scheme: dark    -> dark, unless viewer forced light
   3. [data-theme="dark"] stamp     -> dark, wins over OS
   Never declare a colour anywhere except these token blocks.
   ========================================================================== */
:root{
  --ground:#F3F6F6;      /* cool steel paper, faint teal bias */
  --surface:#FFFFFF;     /* cards, form fields                */
  --panel:#E5EBEB;       /* instrument-panel grey             */
  --ink:#0D1719;         /* enamel near-black, teal biased    */
  --muted:#566669;       /* steel grey secondary text         */
  --line:#C9D6D6;        /* hairline rules                    */
  --accent:#0D7A72;      /* teal  = measurement / primary     */
  --accent-soft:#0D7A7218;
  --heat:#C24E19;        /* amber = heat, PV display, fault   */
  --heat-soft:#C24E1914;
  --led:#1E9E5A;         /* green = setpoint, OK status       */
  --bezel:#1B2426;       /* controller bezel (same both themes)*/
  --bezel-2:#0D1416;
  --shadow:0 1px 2px rgba(13,23,25,.06), 0 8px 24px rgba(13,23,25,.06);
  --seg-off:.06;         /* opacity of an unlit LED segment    */

  --f-display:"Saira Condensed","Oswald","Arial Narrow",system-ui,sans-serif;
  --f-body:"IBM Plex Sans","Segoe UI",system-ui,-apple-system,sans-serif;
  --f-mono:"IBM Plex Mono","SFMono-Regular",Consolas,monospace;

  --shell:min(1180px,100% - 3rem);
  --read:66ch;
}
@media (prefers-color-scheme:dark){
  :root:not([data-theme="light"]){
    --ground:#0A1012;
    --surface:#101A1C;
    --panel:#162225;
    --ink:#E4EDED;
    --muted:#8DA1A3;
    --line:#223134;
    --accent:#3ACFBF;
    --accent-soft:#3ACFBF1C;
    --heat:#FF8244;
    --heat-soft:#FF824418;
    --led:#46DE86;
    --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
    --seg-off:.09;
  }
}
:root[data-theme="dark"]{
  --ground:#0A1012;
  --surface:#101A1C;
  --panel:#162225;
  --ink:#E4EDED;
  --muted:#8DA1A3;
  --line:#223134;
  --accent:#3ACFBF;
  --accent-soft:#3ACFBF1C;
  --heat:#FF8244;
  --heat-soft:#FF824418;
  --led:#46DE86;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 10px 30px rgba(0,0,0,.35);
  --seg-off:.09;
}

*{box-sizing:border-box}
body{
  margin:0;
  background:var(--ground);          /* explicit: never inherit host ground */
  color:var(--ink);
  font-family:var(--f-body);
  font-size:16.5px;
  line-height:1.62;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4{font-family:var(--f-display);font-weight:700;line-height:1.02;text-wrap:balance;margin:0;letter-spacing:.002em}
p{margin:0}
a{color:inherit}
img{max-width:100%}

/* ---- shared building blocks ---------------------------------------------- */
.shell{width:var(--shell);margin-inline:auto}
.eyebrow{                                  /* mono section label, silkscreen  */
  font-family:var(--f-mono);font-size:.68rem;font-weight:600;
  letter-spacing:.16em;text-transform:uppercase;color:var(--accent);
}
.rule{height:1px;background:var(--line);border:0;margin:0}
.section{padding:clamp(3.5rem,7vw,6rem) 0;border-top:1px solid var(--line)}
.sec-head{display:flex;flex-direction:column;gap:.75rem;margin-bottom:clamp(2rem,4vw,3rem);max-width:var(--read)}
.sec-head h2{font-size:clamp(1.9rem,4.4vw,3rem);letter-spacing:-.005em}
.sec-head p{color:var(--muted);font-size:1.02rem}

.btn{
  display:inline-flex;align-items:center;gap:.5rem;
  font-family:var(--f-mono);font-size:.8rem;font-weight:600;letter-spacing:.06em;
  text-transform:uppercase;text-decoration:none;
  padding:.85rem 1.35rem;border-radius:2px;border:1px solid transparent;
  transition:transform .15s ease, background .15s ease, border-color .15s ease;
  cursor:pointer;
}
.btn:hover{transform:translateY(-1px)}
.btn-primary{background:var(--accent);color:var(--ground);border-color:var(--accent)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--accent);color:var(--accent)}
.btn-heat{background:var(--heat);color:#fff;border-color:var(--heat)}
:where(a,button,input,textarea,select):focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* ---- masthead ------------------------------------------------------------ */
header.top{
  position:sticky;top:0;z-index:50;
  background:color-mix(in srgb,var(--ground) 88%,transparent);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.top-in{display:flex;align-items:center;gap:1.25rem;height:64px}
.brand{display:flex;align-items:baseline;gap:.55rem;text-decoration:none;margin-right:auto}
.brand .mark{font-family:var(--f-display);font-weight:700;font-size:1.5rem;letter-spacing:-.01em}
.brand .div{
  font-family:var(--f-mono);font-size:.6rem;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;color:var(--ground);background:var(--accent);
  padding:.22rem .45rem;border-radius:2px;
}
nav.top-nav{display:flex;gap:1.5rem}
nav.top-nav a{
  font-family:var(--f-mono);font-size:.74rem;font-weight:500;letter-spacing:.08em;
  text-transform:uppercase;text-decoration:none;color:var(--muted);
}
nav.top-nav a:hover{color:var(--accent)}
.top .btn{padding:.6rem 1rem;font-size:.72rem}
@media(max-width:880px){nav.top-nav{display:none}}
@media(max-width:520px){.top .btn span.long{display:none}}
@media(max-width:420px){
  .top-in{gap:.7rem}
  .brand .mark{font-size:1.3rem}
  .brand .div{font-size:.52rem;padding:.2rem .35rem}
  .top .btn{padding:.55rem .75rem;font-size:.68rem}
}

/* ---- hero ---------------------------------------------------------------- */
.hero{padding:clamp(3rem,7vw,5.5rem) 0 clamp(3rem,6vw,4.5rem)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:clamp(2rem,5vw,4rem);align-items:center}
@media(max-width:960px){.hero-grid{grid-template-columns:1fr}}
.hero h1{font-size:clamp(2.5rem,6.2vw,4.4rem);letter-spacing:-.012em;margin:1.1rem 0 1.35rem}
.hero h1 em{font-style:normal;color:var(--heat)}
.hero .lede{color:var(--muted);font-size:clamp(1.02rem,1.6vw,1.13rem);max-width:56ch}
.hero .cta{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:2rem}
.hero .sig{
  margin-top:1.75rem;font-family:var(--f-mono);font-size:.76rem;color:var(--muted);
  line-height:1.9;
}
.hero .sig b{color:var(--ink);font-weight:600}

/* ---- the controller panel (the hero's centrepiece) ----------------------- */
/* A working 7-segment front panel drawn entirely in CSS: PV in amber (the
   measured temperature) climbing to SV in green (the setpoint, 37.0 C).      */
.panel-wrap{display:flex;flex-direction:column;align-items:center;gap:.9rem}
.controller{
  --u:5px;                                  /* segment thickness unit         */
  width:100%;max-width:430px;
  background:linear-gradient(168deg,var(--bezel) 0%,var(--bezel-2) 100%);
  border:1px solid #000;border-radius:6px;
  padding:1.15rem 1.15rem 1rem;
  box-shadow:0 1px 0 rgba(255,255,255,.07) inset, 0 18px 40px rgba(0,0,0,.28);
}
.silk{
  display:flex;justify-content:space-between;align-items:center;
  font-family:var(--f-mono);font-size:.56rem;font-weight:500;letter-spacing:.14em;
  text-transform:uppercase;color:#7C8C8E;margin-bottom:.85rem;
}
.silk .id{color:#B7C6C8}
.readouts{display:grid;grid-template-columns:1fr 1fr;gap:.9rem;align-items:end}
.readout{background:#05090A;border:1px solid #000;border-radius:3px;padding:.6rem .55rem .5rem;
  box-shadow:0 2px 6px rgba(0,0,0,.5) inset}
.readout .tag{
  font-family:var(--f-mono);font-size:.53rem;font-weight:600;letter-spacing:.18em;
  text-transform:uppercase;color:#6D7C7E;margin-bottom:.45rem;display:block;
}
.digits{display:flex;align-items:flex-end;gap:calc(var(--u)*.9);height:calc(var(--u)*10)}

/* one digit = 7 absolutely-positioned bars; JS toggles .on per segment */
.digit{position:relative;width:calc(var(--u)*5.6);height:calc(var(--u)*10)}
.digit i{position:absolute;display:block;background:currentColor;opacity:var(--seg-off);
  transition:opacity .09s linear}
.digit i.on{opacity:1;filter:drop-shadow(0 0 4px currentColor)}
.digit i.h{width:calc(var(--u)*4);height:var(--u);left:calc(var(--u)*.8);border-radius:1px}
.digit i.v{width:var(--u);height:calc(var(--u)*4);border-radius:1px}
.digit i.sa{top:0}
.digit i.sg{top:calc(var(--u)*4.5)}
.digit i.sd{top:calc(var(--u)*9)}
.digit i.sf{left:0;top:calc(var(--u)*.6)}
.digit i.sb{right:0;top:calc(var(--u)*.6)}
.digit i.se{left:0;top:calc(var(--u)*5.1)}
.digit i.sc{right:0;top:calc(var(--u)*5.1)}
.dp{width:var(--u);height:var(--u);border-radius:50%;background:currentColor;
  align-self:flex-end;margin-bottom:0;opacity:1;filter:drop-shadow(0 0 4px currentColor)}
.unit{font-family:var(--f-mono);font-size:.7rem;color:currentColor;opacity:.85;
  align-self:flex-end;margin-bottom:calc(var(--u)*.2)}
.pv{color:#FF6B2C}                            /* process value  — amber       */
.sv{color:#3BD97B}                            /* set value      — green       */

.leds{display:flex;gap:1.05rem;margin:.95rem 0 .8rem;padding-left:.15rem}
.led{display:flex;align-items:center;gap:.35rem;font-family:var(--f-mono);
  font-size:.53rem;letter-spacing:.14em;text-transform:uppercase;color:#6D7C7E}
.led .dot{width:7px;height:7px;border-radius:50%;background:#2A3436;transition:.2s}
.led.lit .dot{background:#FF6B2C;box-shadow:0 0 7px #FF6B2C}
.led.lit.ok .dot{background:#3BD97B;box-shadow:0 0 7px #3BD97B}
.led.lit span{color:#C3D0D2}
.keys{display:grid;grid-template-columns:repeat(4,1fr);gap:.5rem}
.key{
  background:linear-gradient(180deg,#2C3739,#1A2325);border:1px solid #000;border-radius:3px;
  height:30px;display:grid;place-items:center;
  font-family:var(--f-mono);font-size:.6rem;font-weight:600;letter-spacing:.08em;color:#9FAEB0;
  box-shadow:0 1px 0 rgba(255,255,255,.06) inset;
}
.panel-cap{font-family:var(--f-mono);font-size:.66rem;color:var(--muted);text-align:center;
  letter-spacing:.04em;max-width:38ch;line-height:1.65}

@media (prefers-reduced-motion:reduce){
  .digit i{transition:none}
  .btn:hover{transform:none}
}

/* ---- trust strip --------------------------------------------------------- */
.strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--panel)}
.strip-in{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.strip-item{padding:1.4rem 1.4rem 1.4rem 0;border-right:1px solid var(--line)}
.strip-item:last-child{border-right:0}
.strip-item:not(:first-child){padding-left:1.4rem}
.strip-item b{display:block;font-family:var(--f-display);font-size:1.5rem;font-weight:700;line-height:1.1}
.strip-item span{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.09em;text-transform:uppercase;color:var(--muted)}
@media(max-width:820px){.strip-in{grid-template-columns:1fr 1fr}
  .strip-item{border-bottom:1px solid var(--line);padding-left:1.4rem!important;padding-right:1.4rem}
  .strip-item:nth-child(2n){border-right:0}
  .strip-item:nth-last-child(-n+2){border-bottom:0}}
@media(max-width:460px){.strip-in{grid-template-columns:1fr}
  .strip-item{border-right:0}
  .strip-item:nth-last-child(-n+2){border-bottom:1px solid var(--line)}
  .strip-item:last-child{border-bottom:0}}

/* ---- inner-page masthead ------------------------------------------------- */
.page-hero{padding:clamp(2.75rem,6vw,4.5rem) 0 clamp(2rem,4vw,3rem)}
.page-hero h1{font-size:clamp(2.2rem,5.4vw,3.7rem);letter-spacing:-.012em;margin:.9rem 0 1rem}
.page-hero .lede{color:var(--muted);font-size:clamp(1rem,1.5vw,1.1rem);max-width:var(--read)}
.crumb{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.14em;text-transform:uppercase;color:var(--muted)}
.crumb a{color:var(--accent);text-decoration:none}

/* ---- equipment catalogue: a spec index, not marketing cards --------------- */
.cat{display:grid;gap:0;background:var(--surface);
  grid-template-columns:repeat(var(--cols,3),1fr);
  border-top:1px solid var(--line);border-left:1px solid var(--line)}
@media(max-width:1080px){.cat{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.cat{grid-template-columns:1fr}}
.cat-group{padding:1.6rem 1.5rem;border-right:1px solid var(--line);border-bottom:1px solid var(--line)}
.cat-group h3{
  font-family:var(--f-mono);font-size:.72rem;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);margin-bottom:.9rem;
  display:flex;align-items:center;gap:.55rem;
}
.cat-group h3::before{content:"";width:10px;height:10px;background:var(--accent);
  border-radius:1px;flex:none}
.cat-group.heat h3{color:var(--heat)} .cat-group.heat h3::before{background:var(--heat)}
.cat-group ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:.42rem}
.cat-group li{font-size:.94rem;color:var(--muted);padding-left:1rem;position:relative;line-height:1.5}
.cat-group li::before{content:"";position:absolute;left:0;top:.62em;width:5px;height:1px;background:var(--line)}
.cat-group li b{color:var(--ink);font-weight:600}

/* ---- process: a genuine sequence, so it is genuinely numbered ------------- */
.steps{display:grid;gap:0;border-top:1px solid var(--line)}
.step{display:grid;grid-template-columns:64px 1fr;gap:1.5rem;padding:1.5rem 0;
  border-bottom:1px solid var(--line);align-items:start}
.step .n{font-family:var(--f-mono);font-size:.75rem;font-weight:600;color:var(--accent);
  letter-spacing:.1em;padding-top:.35rem}
.step h3{font-family:var(--f-body);font-size:1.06rem;font-weight:600;line-height:1.4;margin-bottom:.3rem}
.step p{color:var(--muted);font-size:.96rem;max-width:62ch}
@media(max-width:560px){.step{grid-template-columns:44px 1fr;gap:1rem}}

/* ---- cards (services / build capability) --------------------------------- */
.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:1.1rem}
.card{background:var(--surface);border:1px solid var(--line);border-radius:3px;
  padding:1.5rem 1.4rem;display:flex;flex-direction:column;gap:.6rem;
  transition:border-color .18s ease, transform .18s ease}
.card:hover{border-color:var(--accent);transform:translateY(-2px)}
.card .kicker{font-family:var(--f-mono);font-size:.63rem;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--heat)}
.card h3{font-family:var(--f-display);font-size:1.4rem;letter-spacing:-.002em}
.card p{color:var(--muted);font-size:.95rem}
.card a.more{margin-top:auto;padding-top:.6rem;font-family:var(--f-mono);font-size:.72rem;
  font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--accent);text-decoration:none}
.card a.more:hover{text-decoration:underline}

/* ---- engineering record (project rows) ----------------------------------- */
.projects{border-top:1px solid var(--line)}
.proj{display:grid;grid-template-columns:1.05fr 1fr;gap:1.5rem;padding:1.7rem 0;
  border-bottom:1px solid var(--line)}
.proj-h{display:flex;flex-direction:column;gap:.45rem}
.proj-h .tagline{font-family:var(--f-mono);font-size:.63rem;font-weight:600;letter-spacing:.16em;
  text-transform:uppercase;color:var(--muted)}
.proj-h h3{font-family:var(--f-display);font-size:1.55rem}
.proj-h p{color:var(--muted);font-size:.96rem;max-width:46ch}
.spec{display:flex;flex-wrap:wrap;gap:.4rem;align-content:flex-start;padding-top:.3rem}
.spec span{font-family:var(--f-mono);font-size:.68rem;letter-spacing:.03em;color:var(--muted);
  border:1px solid var(--line);border-radius:2px;padding:.28rem .5rem;background:var(--panel)}
@media(max-width:760px){.proj{grid-template-columns:1fr;gap:.9rem}}

/* ---- coverage ------------------------------------------------------------ */
.cities{display:flex;flex-wrap:wrap;gap:.5rem;max-width:var(--read)}
.cities span{font-family:var(--f-mono);font-size:.76rem;border:1px solid var(--line);
  padding:.4rem .7rem;border-radius:2px;background:var(--surface)}
.cities span.base{border-color:var(--heat);color:var(--heat);font-weight:600}

/* ---- callout ------------------------------------------------------------- */
.callout{background:var(--accent-soft);border-left:3px solid var(--accent);
  padding:1.15rem 1.3rem;border-radius:0 3px 3px 0;max-width:var(--read)}
.callout p{font-size:.97rem}
.callout b{font-weight:600}

/* ---- enquiry form -------------------------------------------------------- */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:2.5rem;align-items:start}
@media(max-width:860px){.form-grid{grid-template-columns:1fr;gap:2rem}}
form.enquiry{display:grid;grid-template-columns:1fr 1fr;gap:.9rem}
form.enquiry .full{grid-column:1/-1}
label{display:flex;flex-direction:column;gap:.35rem;font-family:var(--f-mono);font-size:.66rem;
  font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--muted)}
input,select,textarea{
  font-family:var(--f-body);font-size:.95rem;color:var(--ink);background:var(--surface);
  border:1px solid var(--line);border-radius:2px;padding:.7rem .8rem;width:100%;
  letter-spacing:normal;text-transform:none;font-weight:400;
}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--accent)}
.form-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;gap:.7rem;margin-top:.35rem}
.form-note{grid-column:1/-1;font-size:.82rem;color:var(--muted);line-height:1.6}
.form-status{grid-column:1/-1;font-family:var(--f-mono);font-size:.8rem;padding:.75rem .9rem;
  border-radius:2px;display:none}
.form-status.show{display:block}
.form-status.ok{background:var(--accent-soft);color:var(--accent);border:1px solid var(--accent)}
.form-status.err{background:var(--heat-soft);color:var(--heat);border:1px solid var(--heat)}
@media(max-width:560px){form.enquiry{grid-template-columns:1fr}}

/* ---- contact details block ---------------------------------------------- */
.contact-list{display:flex;flex-direction:column;gap:1.15rem;border-top:1px solid var(--line);padding-top:1.3rem}
.contact-row{display:grid;grid-template-columns:118px 1fr;gap:1rem;align-items:baseline}
.contact-row dt{font-family:var(--f-mono);font-size:.66rem;font-weight:600;letter-spacing:.13em;
  text-transform:uppercase;color:var(--muted)}
.contact-row dd{margin:0;font-size:.98rem}
.contact-row dd a{color:var(--accent);text-decoration:none}
.contact-row dd a:hover{text-decoration:underline}
.contact-row dd small{display:block;color:var(--muted);font-size:.82rem;margin-top:.15rem}
@media(max-width:480px){.contact-row{grid-template-columns:1fr;gap:.2rem}}

/* ---- call-to-action band ------------------------------------------------- */
.band{background:var(--panel);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-in{padding:clamp(2.5rem,5vw,3.5rem) 0;display:flex;flex-wrap:wrap;gap:1.5rem;
  align-items:center;justify-content:space-between}
.band h2{font-size:clamp(1.6rem,3.4vw,2.35rem);max-width:22ch}
.band .cta{display:flex;flex-wrap:wrap;gap:.7rem}

/* ---- footer -------------------------------------------------------------- */
footer.site{border-top:1px solid var(--line);padding:clamp(2.5rem,5vw,3.5rem) 0 2rem;background:var(--ground)}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:2rem;margin-bottom:2.2rem}
@media(max-width:760px){.foot-grid{grid-template-columns:1fr 1fr}}
@media(max-width:480px){.foot-grid{grid-template-columns:1fr}}
.foot-grid h4{font-family:var(--f-mono);font-size:.65rem;font-weight:600;letter-spacing:.15em;
  text-transform:uppercase;color:var(--muted);margin-bottom:.85rem}
.foot-grid p,.foot-grid a{font-size:.92rem;color:var(--muted);text-decoration:none;line-height:1.75}
.foot-grid a{display:block}
.foot-grid a:hover{color:var(--accent)}
.foot-bottom{border-top:1px solid var(--line);padding-top:1.2rem;display:flex;flex-wrap:wrap;
  gap:.8rem;justify-content:space-between;font-family:var(--f-mono);font-size:.68rem;
  letter-spacing:.05em;color:var(--muted)}
.foot-bottom a{color:var(--muted);text-decoration:none}
.foot-bottom a:hover{color:var(--accent)}

/* ---- mobile drawer ------------------------------------------------------- */
.burger{display:none;background:none;border:1px solid var(--line);border-radius:2px;
  width:38px;height:34px;cursor:pointer;padding:0;place-items:center}
.burger span{display:block;width:16px;height:1.5px;background:var(--ink);position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--ink)}
.burger span::before{top:-5px} .burger span::after{top:5px}
@media(max-width:880px){.burger{display:grid}}
.drawer{display:none;border-top:1px solid var(--line);background:var(--ground);padding:.6rem 0 1rem}
.drawer.open{display:block}
.drawer a{display:block;padding:.7rem 0;border-bottom:1px solid var(--line);text-decoration:none;
  font-family:var(--f-mono);font-size:.78rem;letter-spacing:.08em;text-transform:uppercase;color:var(--ink)}

/* ---- deep capability index: instrument + the work actually performed ------ */
.deep{display:grid;grid-template-columns:1fr 1fr;gap:0 2.5rem}
@media(max-width:860px){.deep{grid-template-columns:1fr;gap:0}}
.deep-group{padding:1.5rem 0;border-top:1px solid var(--line)}
.deep-group h3{
  font-family:var(--f-mono);font-size:.72rem;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--accent);margin-bottom:1rem;
  display:flex;align-items:center;gap:.55rem;
}
.deep-group h3::before{content:"";width:10px;height:10px;background:var(--accent);border-radius:1px;flex:none}
.deep-group.heat h3{color:var(--heat)} .deep-group.heat h3::before{background:var(--heat)}
.deep-row{display:grid;gap:.15rem;padding:.6rem 0;border-bottom:1px solid var(--line)}
.deep-row:last-child{border-bottom:0}
.deep-row b{font-weight:600;font-size:.95rem;line-height:1.4}
.deep-row span{color:var(--muted);font-size:.88rem;line-height:1.55}

/* ---- brand index --------------------------------------------------------- */
.brands{display:grid;grid-template-columns:repeat(auto-fit,minmax(300px,1fr));gap:1.75rem 2.5rem}
.brand-block h3{
  font-family:var(--f-mono);font-size:.68rem;font-weight:600;letter-spacing:.14em;
  text-transform:uppercase;color:var(--muted);padding-bottom:.6rem;margin-bottom:.85rem;
  border-bottom:1px solid var(--line);
}
.brand-block ul{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:.4rem}
.brand-block li{
  font-family:var(--f-mono);font-size:.73rem;letter-spacing:.01em;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:2px;padding:.32rem .55rem;
}
.disclaimer{
  border:1px dashed var(--line);border-radius:2px;padding:1.05rem 1.2rem;
  font-size:.86rem;color:var(--muted);line-height:1.65;max-width:var(--read);
}
.disclaimer b{color:var(--ink);font-weight:600}

/* ---- standards checklist ------------------------------------------------- */
.checks{display:grid;grid-template-columns:1fr 1fr;gap:0 2.5rem}
@media(max-width:860px){.checks{grid-template-columns:1fr}}
.check{display:grid;grid-template-columns:22px 1fr;gap:.85rem;padding:1rem 0;
  border-bottom:1px solid var(--line);align-items:start}
.check .tick{width:16px;height:16px;border:1.5px solid var(--accent);border-radius:2px;
  margin-top:.28rem;position:relative;flex:none}
.check .tick::after{content:"";position:absolute;left:4px;top:.5px;width:5px;height:9px;
  border:solid var(--accent);border-width:0 1.5px 1.5px 0;transform:rotate(42deg)}
.check b{display:block;font-weight:600;font-size:.97rem;line-height:1.4;margin-bottom:.15rem}
.check span{color:var(--muted);font-size:.9rem;line-height:1.55}

/* ---- product roadmap block ----------------------------------------------- */
.roadmap{background:var(--heat-soft);border-left:3px solid var(--heat);
  padding:1.3rem 1.4rem;border-radius:0 3px 3px 0;max-width:var(--read);
  display:flex;flex-direction:column;gap:.7rem}
.roadmap h3{font-family:var(--f-display);font-size:1.35rem;color:var(--heat)}
.roadmap p{font-size:.96rem}

/* ---- tighter masthead so a longer nav still fits -------------------------- */
nav.top-nav{gap:1.15rem}
nav.top-nav a{font-size:.715rem;letter-spacing:.06em}
@media(max-width:1320px){.top .btn span.long{display:none}}