/* ============================================================
   YANTRIUM — machined-alloy identity
   Drenched gunmetal · brushed steel · hot-annealed amber (material, not glow)
   ============================================================ */

:root {
  /* ground + steel */
  --ground:      #0E1115;
  --ground-2:    #12161B;
  --ground-3:    #171C22;
  --steel:       #232a32;
  --steel-2:     #2c343d;
  --steel-hi:    #3a434e;
  --bevel-lo:    rgba(0,0,0,.55);
  --bevel-hi:    rgba(255,255,255,.09);

  /* ink */
  --ink:         #E9ECEF;
  --ink-2:       #AEB6BF;   /* secondary, tinted cool off the steel hue */
  --ink-3:       #98A1AB;   /* tertiary / labels — legible on steel */
  --line:        rgba(233,236,239,.085);
  --line-2:      rgba(233,236,239,.16);

  /* hot annealed accent */
  --amber:       #E3922B;
  --amber-hi:    #F4A93E;
  --amber-deep:  #A75F13;
  --amber-ink:   #1A130A;

  /* type */
  --f-disp: "Archivo Expanded", "Archivo", system-ui, sans-serif;
  --f-sans: "Archivo", system-ui, sans-serif;
  --f-body: "Hanken Grotesk", system-ui, sans-serif;
  --f-mono: "Overpass Mono", ui-monospace, monospace;

  /* rhythm */
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --maxw: 1240px;
  --ease-snap: cubic-bezier(.16, 1.08, .3, 1);   /* overshoot then settle */
  --ease-out:  cubic-bezier(.22, 1, .36, 1);
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; overflow-x: hidden; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--f-body);
  color: var(--ink);
  background: var(--ground);
  line-height: 1.6;
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* construction-grid armature over the whole page */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: linear-gradient(180deg, #000 0%, rgba(0,0,0,.72) 55%, rgba(0,0,0,.5) 100%);
  opacity: .9;
}
/* brighter registration grid + a hot centreline behind the hero only */
.hero::before {
  content: "";
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(233,236,239,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233,236,239,.05) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(90% 80% at 70% 42%, #000, transparent 72%);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }

::selection { background: var(--amber); color: var(--amber-ink); }
:focus-visible {
  outline: 2px solid var(--amber-hi);
  outline-offset: 3px;
  border-radius: 1px;
}

/* themed scrollbar */
html { scrollbar-color: var(--steel-hi) var(--ground); }
::-webkit-scrollbar { width: 12px; height: 12px; }
::-webkit-scrollbar-track { background: var(--ground); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--steel-2), var(--steel));
  border: 3px solid var(--ground);
  border-radius: 8px;
}
::-webkit-scrollbar-thumb:hover { background: var(--steel-hi); }

/* ---------- shared primitives ---------- */
.shell { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); position: relative; z-index: 1; }

.mono {
  font-family: var(--f-mono);
  font-size: .78rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--ink-3);
  font-feature-settings: "tnum" 1;
}

.rule {
  height: 1px;
  background: var(--line-2);
  border: 0;
}

/* brushed-steel surface: layered gradients + fine machining marks */
.steel {
  background:
    repeating-linear-gradient(90deg, rgba(255,255,255,.05) 0 1px, transparent 1px 3px),
    repeating-linear-gradient(90deg, rgba(0,0,0,.06) 0 1px, transparent 1px 5px),
    linear-gradient(118deg, rgba(255,255,255,.07), rgba(255,255,255,0) 32%),
    linear-gradient(158deg, var(--steel-2) 0%, var(--steel) 46%, var(--ground-3) 100%);
  box-shadow:
    inset 0 1px 0 var(--bevel-hi),
    inset 0 0 0 1px rgba(0,0,0,.4),
    0 18px 40px -24px rgba(0,0,0,.9);
}

/* rivet */
.rivet {
  position: absolute;
  width: 9px; height: 9px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #4a535d, #14181d 70%);
  box-shadow: inset 0 1px 1px rgba(255,255,255,.25), 0 1px 1px rgba(0,0,0,.6);
}

/* engraved (incised) text */
.engrave {
  color: #c9cfd6;
  text-shadow: 0 1px 0 rgba(255,255,255,.10), 0 -1px 1px rgba(0,0,0,.7);
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .6em;
  padding: .92em 1.5em;
  font-family: var(--f-sans);
  font-weight: 700;
  font-size: .92rem;
  letter-spacing: .02em;
  border: 0;
  border-radius: 3px;
  position: relative;
  transition: transform .16s var(--ease-snap), box-shadow .16s var(--ease-out), background .2s;
  will-change: transform;
}
.btn-primary {
  color: var(--amber-ink);
  background: linear-gradient(180deg, var(--amber-hi), var(--amber) 62%, #C87E1C);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.4),
    inset 0 -2px 4px rgba(0,0,0,.35),
    0 10px 22px -12px rgba(0,0,0,.9);
}
.btn-primary:hover { transform: translateY(-2px); }
.btn-primary:active { transform: translateY(1px); box-shadow: inset 0 2px 5px rgba(0,0,0,.45); }
.btn-ghost {
  color: var(--ink);
  background: linear-gradient(180deg, var(--steel-2), var(--steel));
  box-shadow: inset 0 1px 0 var(--bevel-hi), inset 0 0 0 1px rgba(0,0,0,.4), 0 8px 20px -14px #000;
}
.btn-ghost:hover { transform: translateY(-2px); }
.btn-ghost:active { transform: translateY(1px); }
.btn .arw { transition: transform .2s var(--ease-out); }
.btn:hover .arw { transform: translateX(3px); }

/* ============================================================
   NAV
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--ground) 78%, transparent);
  backdrop-filter: blur(10px) saturate(1.1);
  -webkit-backdrop-filter: blur(10px) saturate(1.1);
  transition: border-color .3s, background .3s;
}
.nav.scrolled { background: color-mix(in srgb, var(--ground) 92%, transparent); border-color: var(--line-2); }
.nav-in {
  display: flex; align-items: center; gap: 1.5rem;
  height: 68px;
  max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter);
}
.brand { display: flex; align-items: center; gap: .6rem; margin-right: auto; }
.brand-mark { width: 34px; height: 34px; display: block; flex: none; }
.brand b {
  font-family: var(--f-disp);
  font-weight: 800;
  font-size: 1.28rem;
  letter-spacing: .01em;
  color: var(--ink);
}
.brand .sym {
  font-family: var(--f-mono);
  font-size: .74rem; letter-spacing: .12em;
  color: var(--amber);
  border: 1px solid color-mix(in srgb, var(--amber) 45%, transparent);
  padding: .18em .42em; border-radius: 2px;
  transform: translateY(-2px);
}
.nav-links { display: flex; gap: 1.6rem; align-items: center; }
.nav-links a {
  font-family: var(--f-mono);
  font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-2);
  padding: .35em 0; position: relative;
  transition: color .2s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: -2px; height: 1px;
  background: var(--amber); transition: right .25s var(--ease-out);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { right: 0; }
.nav-cta { display: inline-flex; }
.nav-menu-cta { display: none; }  /* desktop uses the standalone .nav-cta; this shows only in the mobile menu */
.nav-toggle { display: none; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  display: flex;
  align-items: center;
  min-height: calc(100svh - 68px);
  padding-top: clamp(2.5rem, 5vw, 4rem);
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  overflow: hidden;
}
.hero > .shell { width: 100%; }
.cap-flat .hero { min-height: 0; }
.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

/* left column */
.faceplate {
  position: relative;
  display: inline-block;
  padding: 1.15rem 1.7rem 1.25rem;
  border-radius: 5px;
  margin-bottom: 1.5rem;
}
.faceplate .rivet { top: 10px; }
.faceplate .rivet.tl { left: 10px; } .faceplate .rivet.tr { right: 10px; }
.faceplate .rivet.bl { bottom: 10px; top: auto; left: 10px; }
.faceplate .rivet.br { bottom: 10px; top: auto; right: 10px; }
.wordmark {
  font-family: var(--f-disp);
  font-weight: 900;
  font-size: clamp(2rem, 9.5vw, 4.6rem);
  line-height: .92;
  letter-spacing: -.02em;
  color: #c7cdd4;
  text-shadow: 0 1px 0 rgba(255,255,255,.12), 0 -1px 2px rgba(0,0,0,.75), 0 2px 3px rgba(0,0,0,.5);
}
.wordmark .dot { color: var(--amber); }

.specstrip {
  display: flex; flex-wrap: wrap; gap: .5rem 1.1rem;
  align-items: center;
  margin-bottom: 1.8rem;
}
.specstrip .chip {
  font-family: var(--f-mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase;
  color: var(--ink-3);
}
.specstrip .chip b { color: var(--ink-2); font-weight: 500; }
.specstrip .sep { width: 5px; height: 5px; background: var(--amber); border-radius: 50%; }

.hero h1 {
  font-family: var(--f-disp);
  font-weight: 700;
  font-size: clamp(2rem, 4.6vw, 3.35rem);
  line-height: 1.02;
  letter-spacing: -.025em;
  text-wrap: balance;
  margin-bottom: 1.15rem;
}
.hero h1 em { font-style: normal; color: var(--amber); }
.hero .lede {
  color: var(--ink-2);
  font-size: clamp(1.05rem, 1.4vw, 1.2rem);
  max-width: 46ch;
  margin-bottom: 2rem;
}
.hero-cta { display: flex; flex-wrap: wrap; gap: .9rem; align-items: center; }
.hero-note { font-family: var(--f-mono); font-size: .8rem; letter-spacing: .04em; color: var(--ink-3); margin-top: 1.4rem; }
.hero-note b { color: var(--amber); }

/* right column — specimen: product family plate stack on the grid */
.specimen {
  position: relative;
  border-radius: 6px;
  padding: 1.7rem 1.7rem 1.5rem;
}
.specimen .cnr {
  position: absolute; width: 16px; height: 16px; border: 1px solid var(--line-2);
}
.specimen .cnr.tl { top: 8px; left: 8px; border-right: 0; border-bottom: 0; }
.specimen .cnr.tr { top: 8px; right: 8px; border-left: 0; border-bottom: 0; }
.specimen .cnr.bl { bottom: 8px; left: 8px; border-right: 0; border-top: 0; }
.specimen .cnr.br { bottom: 8px; right: 8px; border-left: 0; border-top: 0; }
.specimen-head {
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--f-mono); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3);
  margin-bottom: 1rem;
}
.specimen-head .live { display: inline-flex; align-items: center; gap: .45em; color: var(--amber); }
.specimen-stack { display: grid; gap: 0; }
.mini {
  display: grid; grid-template-columns: auto minmax(0, 1fr) auto; align-items: center; gap: .9rem;
  padding: .85rem .35rem;
  border-bottom: 1px solid var(--line);
  transition: transform .2s var(--ease-snap);
}
.specimen-stack .mini:last-child { border-bottom: 0; }
.mini:hover { transform: translateX(5px); }
.mini:hover .sym { border-color: color-mix(in srgb, var(--amber) 55%, transparent); color: #e6ebf1; }
.mini .sym { transition: border-color .2s, color .2s; }
.mini .sym {
  font-family: var(--f-disp); font-weight: 800; font-size: 1.15rem; color: #c7cdd4;
  width: 2.4rem; height: 2.4rem; display: grid; place-items: center;
  border: 1px solid var(--line-2); border-radius: 3px;
  background: linear-gradient(158deg, rgba(58,67,78,.4), rgba(0,0,0,.2));
  text-shadow: 0 1px 0 rgba(255,255,255,.08), 0 -1px 1px rgba(0,0,0,.6);
}
.specimen-foot {
  display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  margin-top: 1.1rem; padding-top: 1rem; border-top: 1px solid var(--line);
  font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3);
}
.specimen-foot b { color: var(--ink-2); font-weight: 500; }
.mini .nm { font-family: var(--f-sans); font-weight: 600; font-size: .92rem; }
.mini .sub { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .1em; color: var(--ink-3); text-transform: uppercase; }
.mini .stat { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; display: inline-flex; align-items: center; gap: .4em; }
.mini .stat.on { color: var(--amber); }
.mini .stat.build { color: var(--ink-2); }
.dot-live { width: 7px; height: 7px; border-radius: 50%; background: var(--amber); box-shadow: 0 0 0 0 var(--amber); }
.pulse .dot-live { animation: pulse 2.4s var(--ease-out) infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(227,146,43,.5);} 70%{box-shadow:0 0 0 6px rgba(227,146,43,0);} 100%{box-shadow:0 0 0 0 rgba(227,146,43,0);} }

/* ============================================================
   SECTION frame
   ============================================================ */
section { position: relative; padding-block: clamp(3.25rem, 6vw, 5.5rem); }
/* section break: a slim registration rule inset from the gutters, not a full-bleed border */
#products, #services, #approach, #contact { --brk: 1; }
#products::before, #services::before, #approach::before, #contact::before {
  content: ""; position: absolute; top: 0; left: var(--gutter); right: var(--gutter);
  height: 1px; background: linear-gradient(90deg, var(--line-2), transparent 70%);
}
.sec-head { display: flex; align-items: flex-end; justify-content: space-between; gap: 2rem; margin-bottom: 2.6rem; }
.sec-head h2 {
  font-family: var(--f-disp); font-weight: 700;
  font-size: clamp(1.7rem, 3.4vw, 2.6rem); line-height: 1.02; letter-spacing: -.02em;
  text-wrap: balance;
}
.sec-head p { color: var(--ink-2); max-width: 42ch; margin-top: .6rem; }
.sec-idx { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .16em; color: var(--ink-3); white-space: nowrap; }

/* ============================================================
   PRODUCTS — engraved element plates
   ============================================================ */
.plates {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}
.plate {
  position: relative;
  display: flex; flex-direction: column;
  padding: 1.5rem 1.5rem 1.3rem;
  border-radius: 5px;
  min-height: 260px;
  text-shadow: none;
  transition: transform .22s var(--ease-snap), box-shadow .22s var(--ease-out);
  will-change: transform;
}
.plate .rivet { width: 7px; height: 7px; }
.plate .rivet.tl { top: 9px; left: 9px; } .plate .rivet.tr { top: 9px; right: 9px; }
/* signature: the plate SEATS into the grid — presses down with a recessed inset, then settles */
.plate:hover { transform: translateY(3px) scale(.994); }
.plate:hover.steel {
  box-shadow: inset 0 3px 8px rgba(0,0,0,.62), inset 0 0 0 1px var(--line-2), inset 0 -1px 0 var(--bevel-hi), 0 6px 14px -12px rgba(0,0,0,.9);
}
.plate:hover.lead {
  box-shadow: inset 0 3px 9px rgba(0,0,0,.32), inset 0 0 0 1px rgba(0,0,0,.3), inset 0 -1px 0 rgba(255,255,255,.5), 0 6px 14px -12px rgba(0,0,0,.7);
}
.plate:active { transform: translateY(4px) scale(.99); }

.plate .top { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 1.4rem; }
.plate .sym {
  font-family: var(--f-disp); font-weight: 900; font-size: 2.5rem; line-height: 1; color: #cbd1d8;
  text-shadow: 0 1px 0 rgba(255,255,255,.10), 0 -1px 2px rgba(0,0,0,.7);
}
.plate .no { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .12em; color: var(--ink-3); }
.plate h3 { font-family: var(--f-sans); font-weight: 700; font-size: 1.22rem; letter-spacing: -.01em; margin-bottom: .3rem; }
.plate .sector { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-3); margin-bottom: .85rem; }
.plate p { color: var(--ink-2); font-size: .95rem; margin-bottom: 1.15rem; }
.plate .foot { margin-top: auto; display: flex; align-items: center; justify-content: space-between; gap: 1rem; padding-top: 1rem; border-top: 1px solid var(--line); }
.plate .status { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; display: inline-flex; align-items: center; gap: .5em; }
.plate .status.on { color: var(--amber); }
.plate .status.build { color: var(--ink-2); }
.plate .status.build .dot-live { background: var(--ink-3); animation: none; box-shadow: none; }
.plate .visit { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-2); display: inline-flex; align-items: center; gap: .4em; transition: color .2s, gap .2s; }
.plate .visit:hover { color: var(--amber-hi); gap: .6em; }

/* lead plate — rank by inversion (light plate among dark) */
.plate.lead {
  grid-row: span 2;
  background:
    repeating-linear-gradient(90deg, rgba(0,0,0,.02) 0 1px, transparent 1px 3px),
    linear-gradient(158deg, #d9dde2 0%, #c4c9d0 55%, #aab0b8 100%);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.7), inset 0 0 0 1px rgba(0,0,0,.25), 0 22px 46px -22px rgba(0,0,0,1);
  color: #1a1f25;
}
.plate.lead .rivet { background: radial-gradient(circle at 35% 30%, #fff, #9aa0a8 70%); box-shadow: inset 0 1px 1px rgba(255,255,255,.7), 0 1px 1px rgba(0,0,0,.3); }
.plate.lead .sym { color: #20262d; text-shadow: 0 1px 0 rgba(255,255,255,.6), 0 -1px 1px rgba(0,0,0,.15); }
.plate.lead .no { color: #5a626b; }
.plate.lead h3 { color: #12161a; font-size: 1.5rem; }
.plate.lead .sector { color: #3f464e; }
.plate.lead p { color: #363d45; }
.plate.lead .foot { border-top-color: rgba(0,0,0,.15); }
.plate.lead .status.on { color: var(--amber-deep); }
.plate.lead .status.on .dot-live { background: var(--amber-deep); }
.plate.lead .visit { color: #2a3038; }
.plate.lead .visit:hover { color: var(--amber-deep); }
.plate.lead .flag { margin-bottom:.9rem; }
.plate .flag { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--amber-deep); }

/* ============================================================
   SERVICES — fabrication ledger
   ============================================================ */
.ledger { border-top: 1px solid var(--line-2); }
.svc {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr) minmax(0, 1.6fr) auto;
  gap: 1.5rem; align-items: center;
  padding: 1.5rem 1rem;
  border-bottom: 1px solid var(--line);
  position: relative;
  transition: background .25s;
}
.svc > * { transition: transform .28s var(--ease-out); }
.svc::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 2px; background: var(--amber);
  transform: scaleY(0); transform-origin: top; transition: transform .3s var(--ease-out);
}
.svc:hover { background: linear-gradient(90deg, color-mix(in srgb, var(--amber) 7%, transparent), transparent 60%); }
.svc:hover > * { transform: translateX(8px); }
.svc:hover::before { transform: scaleY(1); }
.svc .pn { font-family: var(--f-mono); font-size: .78rem; letter-spacing: .1em; color: var(--amber); }
.svc h3 { font-family: var(--f-sans); font-weight: 700; font-size: 1.15rem; }
.svc p { color: var(--ink-2); font-size: .95rem; }
.svc .meta { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); text-align: right; white-space: nowrap; }

/* ============================================================
   APPROACH — material properties datasheet
   ============================================================ */
.datasheet { display: grid; grid-template-columns: minmax(0, .85fr) minmax(0, 1.15fr); gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }
.datasheet-lead h2 { margin-bottom: 1.1rem; }
.datasheet-lead p { color: var(--ink-2); margin-bottom: 1rem; max-width: 40ch; }
.datasheet-lead .cap {
  display: inline-flex; align-items: center; gap: .6em;
  font-family: var(--f-mono); font-size: .72rem; letter-spacing: .14em; text-transform: uppercase; color: var(--amber);
  margin-top: .6rem;
}
.props {
  border-radius: 5px; overflow: hidden; padding: .4rem;
}
.props .row {
  display: grid; grid-template-columns: 12rem minmax(0, 1fr); gap: 1rem;
  padding: 1rem 1.1rem;
  border-bottom: 1px solid var(--line);
  align-items: baseline;
}
.props .row:last-child { border-bottom: 0; }
.props .k { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-3); }
.props .v { font-family: var(--f-sans); font-weight: 500; color: var(--ink); font-size: 1.02rem; }
.props .v b { color: var(--amber-hi); font-weight: 700; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.contact-lead h2 { margin-bottom: 1.1rem; }
.contact-lead p { color: var(--ink-2); max-width: 40ch; margin-bottom: 2rem; }
.contact-facts { display: grid; gap: 1.3rem; }
.fact { display: grid; gap: .25rem; }
.fact .k { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); }
.fact .v { font-family: var(--f-sans); font-weight: 600; font-size: 1.05rem; }
.fact .v a:hover { color: var(--amber-hi); }

/* form */
.form { position: relative; border-radius: 6px; padding: clamp(1.5rem, 3vw, 2.2rem); }
.form .rivet { top: 12px; }
.form .rivet.tl{left:12px;} .form .rivet.tr{right:12px;} .form .rivet.bl{bottom:12px;top:auto;left:12px;} .form .rivet.br{bottom:12px;top:auto;right:12px;}
.field { margin-bottom: 1.15rem; }
.field label { display: block; font-family: var(--f-mono); font-size: .74rem; letter-spacing: .14em; text-transform: uppercase; color: var(--ink-2); margin-bottom: .5rem; }
.field label .req { color: var(--amber); }
.input {
  width: 100%;
  font-family: var(--f-body); font-size: 1rem; color: var(--ink);
  background: linear-gradient(180deg, #0b0e12, #10151a);
  border: 1px solid rgba(0,0,0,.5);
  box-shadow: inset 0 1px 3px rgba(0,0,0,.6), inset 0 0 0 1px rgba(255,255,255,.03);
  border-radius: 3px;
  padding: .82em .9em;
  transition: box-shadow .2s, border-color .2s;
}
.input::placeholder { color: var(--ink-3); }
.input:focus { outline: none; border-color: var(--amber); box-shadow: inset 0 1px 3px rgba(0,0,0,.6), 0 0 0 2px color-mix(in srgb, var(--amber) 40%, transparent); }
textarea.input { resize: vertical; min-height: 120px; }
select.input { appearance: none; -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23E3922B' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E"), linear-gradient(180deg, #0b0e12, #10151a);
  background-repeat: no-repeat, no-repeat; background-position: right 1rem center, center; padding-right: 2.5rem;
}
.form-row { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 1rem; }
.form-submit { display: flex; align-items: center; gap: 1.2rem; flex-wrap: wrap; margin-top: 1.5rem; }
.form-msg { font-family: var(--f-mono); font-size: .72rem; letter-spacing: .08em; }
.form-msg.err { color: var(--amber-hi); }
.form-msg.ok { color: var(--amber); }
.btn[disabled] { opacity: .55; cursor: progress; }
.btn[disabled]:hover { transform: none; }
.form-hint { font-family: var(--f-mono); font-size: .74rem; letter-spacing: .1em; color: var(--ink-3); margin-top: 1rem; }
.spinner { width: 14px; height: 14px; border: 2px solid rgba(26,19,10,.35); border-top-color: var(--amber-ink); border-radius: 50%; animation: spin .7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ============================================================
   FOOTER
   ============================================================ */
.foot-main { border-top: 1px solid var(--line-2); padding-block: clamp(2.5rem, 5vw, 4rem) 2rem; }
.foot-top { display: flex; justify-content: space-between; gap: 2rem; flex-wrap: wrap; margin-bottom: 2.5rem; }
.foot-lockup { display: inline-flex; align-items: center; gap: .55rem; }
.foot-lockup .brand-mark { width: 30px; height: 30px; }
.foot-brand b { font-family: var(--f-disp); font-weight: 800; font-size: 1.5rem; }
.foot-brand p { color: var(--ink-2); max-width: 34ch; margin-top: .7rem; font-size: .95rem; }
.foot-cols { display: flex; gap: clamp(2rem, 5vw, 4rem); flex-wrap: wrap; }
.foot-col h3 { font-family: var(--f-mono); font-size: .74rem; font-weight: 600; letter-spacing: .16em; text-transform: uppercase; color: var(--ink-3); margin-bottom: 1rem; }
.foot-col a { display: block; color: var(--ink-2); font-size: .92rem; padding: .28em 0; transition: color .2s; }
.foot-col a:hover { color: var(--amber-hi); }
.foot-bar { display: flex; justify-content: space-between; gap: 1rem; flex-wrap: wrap; padding-top: 1.6rem; border-top: 1px solid var(--line); }
.foot-bar .mono { font-size: .74rem; }

/* ============================================================
   reveal-on-scroll (snap-settle)
   ============================================================ */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s var(--ease-out), transform .6s var(--ease-snap); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
  .mini, .plate, .btn, .svc { transition: none !important; }
  .pulse .dot-live { animation: none !important; }
}

/* mobile overflow safety: long names/URLs must break, never force width */
.mini .nm, .plate h3, .plate p, .plate .sector, .plate .visit,
.fact .v, .svc h3, .svc p, .props .v, .hero .lede, .foot-brand p { overflow-wrap: anywhere; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1080px) {
  .plates { grid-template-columns: repeat(2, 1fr); }
  .plate.lead { grid-row: span 1; grid-column: span 2; }
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .specimen { order: 2; }
  .datasheet, .contact-grid { grid-template-columns: 1fr; }
  .datasheet-lead h2 { max-width: none; }
}
@media (max-width: 760px) {
  .nav-links, .nav > .nav-in > .nav-cta { display: none; }
  .nav.open .nav-links {
    display: flex; flex-direction: column; align-items: flex-start; gap: .2rem;
    position: absolute; top: 68px; left: 0; right: 0;
    background: var(--ground-2); border-bottom: 1px solid var(--line-2);
    padding: 1rem var(--gutter) 1.5rem;
  }
  .nav.open .nav-links a { font-size: .9rem; padding: .7em 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav.open .nav-menu-cta {
    display: inline-flex; align-items: center; gap: .5em; justify-content: center;
    margin-top: .9rem; width: 100%; border-bottom: 0;
    font-family: var(--f-sans); font-weight: 700; font-size: .95rem; letter-spacing: .02em;
    color: var(--amber-ink); border-radius: 3px; padding: .85em 1.2em;
    background: linear-gradient(180deg, var(--amber-hi), var(--amber) 62%, #C87E1C);
    box-shadow: inset 0 1px 0 rgba(255,255,255,.4), inset 0 -2px 4px rgba(0,0,0,.35);
  }
  .nav.open .nav-menu-cta::after { display: none; }
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; background: transparent; border: 1px solid var(--line-2); border-radius: 3px; }
  .nav-toggle span, .nav-toggle span::before, .nav-toggle span::after { content:""; display:block; width:18px; height:2px; background: var(--ink); position: relative; transition: transform .25s, opacity .2s; }
  .nav-toggle span::before { position:absolute; top:-6px; } .nav-toggle span::after { position:absolute; top:6px; }
  .nav.open .nav-toggle span { background: transparent; }
  .nav.open .nav-toggle span::before { transform: translateY(6px) rotate(45deg); }
  .nav.open .nav-toggle span::after { transform: translateY(-6px) rotate(-45deg); }
}
@media (max-width: 620px) {
  .plates { grid-template-columns: 1fr; }
  .plate.lead { grid-column: span 1; }
  .svc { grid-template-columns: 4rem 1fr; row-gap: .5rem; }
  .svc p { grid-column: 1 / -1; }
  .svc .meta { grid-column: 2; text-align: left; }
  .form-row { grid-template-columns: 1fr; }
  .sec-head { flex-direction: column; align-items: flex-start; gap: .5rem; }
  .props .row { grid-template-columns: 1fr; gap: .2rem; }
}
@media (max-width: 400px) {
  .faceplate { padding: .85rem 1.05rem .95rem; }
  .wordmark { font-size: clamp(1.75rem, 12vw, 2.4rem); }
  .brand b { font-size: 1.12rem; }
}