/* =========================================================================
   Moretextsandtalks Engineering
   Shop-drawing grid · Structural Blue palette
   ========================================================================= */

/* ---------- 1. Tokens ---------- */
:root{
  /* Colour */
  --navy-950:#0A1A2B;
  --steel-800:#173654;
  --blue-600:#1D5C99;
  --blue-100:#DCE7F0;
  --paper-50:#F5F6F4;
  --ember-500:#C7551E;        /* retained for form error states only */
  --blue-400:#4E93CE;         /* accent blue on dark surfaces */
  --ink-900:#10161D;

  /* Derived hairlines — hairlines only, never soft shadows */
  --rule-light:rgba(16,22,29,.14);
  --rule-faint:rgba(16,22,29,.07);
  --rule-dark:rgba(220,231,240,.18);
  --rule-dark-faint:rgba(220,231,240,.09);

  /* Type */
  --font-display:"Space Grotesk","Helvetica Neue",Arial,sans-serif;
  --font-body:"IBM Plex Sans","Helvetica Neue",Arial,sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,"SFMono-Regular",Menlo,monospace;

  --fs-h1:3.5rem;    --lh-h1:1.05;
  --fs-h2:2.25rem;   --lh-h2:1.15;
  --fs-h3:1.5rem;    --lh-h3:1.3;
  --fs-body:1.0625rem;--lh-body:1.6;
  --fs-small:.8125rem;--lh-small:1.4;

  /* Layout */
  --maxw:1280px;
  --gutter:24px;
  --section-y:104px;
}

/* ---------- 2. Reset ---------- */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html:focus-within{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--ink-900);
  font-family:var(--font-body);
  font-size:var(--fs-body);
  line-height:var(--lh-body);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
h1,h2,h3{font-family:var(--font-display);font-weight:700;margin:0;letter-spacing:-.015em}
h1{font-size:var(--fs-h1);line-height:var(--lh-h1)}
h2{font-size:var(--fs-h2);line-height:var(--lh-h2)}
h3{font-size:var(--fs-h3);line-height:var(--lh-h3);font-weight:500}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--blue-600);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums;letter-spacing:-.01em}

/* Keyboard focus — visible ember outline, never removed */
:focus-visible{outline:2px solid var(--blue-600);outline-offset:2px}
.section--dark :focus-visible,.site-footer :focus-visible,.hero :focus-visible,.site-header :focus-visible{outline-color:var(--blue-400)}

.skip-link{
  position:absolute;left:var(--gutter);top:-64px;z-index:60;
  background:var(--blue-600);color:#fff;padding:10px 16px;font-size:var(--fs-small);
  font-family:var(--font-mono);transition:top .12s linear;
}
.skip-link:focus{top:12px;text-decoration:none}

/* ---------- 3. Shared layout ---------- */
.section{padding:var(--section-y) 0;position:relative}
.section__inner{max-width:var(--maxw);margin-inline:auto;padding-inline:var(--gutter)}
.section--light{background:var(--blue-100)}
.section--dark{background:var(--navy-950);color:var(--paper-50)}
.section--dark h2,.section--dark h3{color:var(--paper-50)}
.section--dark a{color:var(--blue-100)}

.section__head{
  max-width:52ch;margin-bottom:56px;
  border-top:1px solid var(--rule-light);padding-top:20px;
}
.section--dark .section__head{border-top-color:var(--rule-dark)}
.section__label{
  font-size:var(--fs-small);line-height:var(--lh-small);
  color:var(--blue-600);margin:0 0 14px;
}
.section--dark .section__label{color:var(--blue-100);opacity:.72}
.section__title{max-width:22ch}

/* Shop-drawing sheet guides: 12 vertical column hairlines + baseline rules */
.section--sheet{overflow:hidden}
.section--sheet::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  max-width:var(--maxw);margin-inline:auto;left:0;right:0;
  background-image:
    linear-gradient(to right,var(--rule-faint) 1px,transparent 1px),
    linear-gradient(to bottom,var(--rule-faint) 1px,transparent 1px);
  background-size:calc(100% / 12) 100%,100% 48px;
}
.section--dark.section--sheet::before{
  background-image:
    linear-gradient(to right,var(--rule-dark-faint) 1px,transparent 1px),
    linear-gradient(to bottom,var(--rule-dark-faint) 1px,transparent 1px);
}
.section--sheet > .section__inner{position:relative}

/* Registration marks — corner crosshairs, inherit colour via currentColor */
.reg-mark{width:14px;height:14px;flex:none;color:var(--blue-600);opacity:.5}
.reg-mark--section{position:absolute;color:var(--blue-600);opacity:.45}
.section--dark .reg-mark--section{color:var(--blue-100);opacity:.35}
.reg-mark--tl{top:20px;left:20px}
.reg-mark--tr{top:20px;right:20px}
.reg-mark--br{bottom:20px;right:20px}

/* ---------- 4. Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-body);font-size:.9375rem;font-weight:600;line-height:1;
  padding:15px 26px;border:1px solid transparent;border-radius:0;
  cursor:pointer;transition:background-color .12s linear,color .12s linear,border-color .12s linear;
}
.btn:hover{text-decoration:none}
.btn--primary{background:var(--blue-600);color:#fff;border-color:var(--blue-600)}
.btn--primary:hover{background-color:var(--steel-800);border-color:var(--steel-800);color:#fff}
.btn--ghost{background:transparent;color:var(--paper-50);border-color:rgba(245,246,244,.55)}
.btn--ghost:hover{border-color:var(--paper-50);background:rgba(245,246,244,.08);color:#fff}
.btn--sm{padding:11px 18px;font-size:.875rem}
.btn--block{width:100%}

/* ---------- 5. Header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--navy-950);color:var(--paper-50);
  border-bottom:1px solid var(--rule-dark);
}
.site-header__inner{
  position:relative;max-width:var(--maxw);margin-inline:auto;
  padding:0 var(--gutter);min-height:76px;
  display:flex;align-items:center;gap:var(--gutter);
}
.site-header .reg-mark{position:absolute;color:var(--blue-100);opacity:.4}
.site-header .reg-mark--tl{top:50%;left:6px;transform:translateY(-50%)}
.site-header .reg-mark--tr{top:50%;right:6px;transform:translateY(-50%)}

.logo{display:flex;align-items:center;gap:12px;color:var(--paper-50);margin-right:auto}
.logo:hover{text-decoration:none}
.logo__mark{width:30px;height:30px;color:var(--blue-400);flex:none}
.logo__text{display:flex;flex-direction:column;line-height:1.05}
.logo__name{font-family:var(--font-display);font-weight:700;font-size:1.0625rem;letter-spacing:-.02em}
.logo__suffix{
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.06em;
  color:var(--blue-100);opacity:.75;
}

.site-nav{display:flex;align-items:center;gap:28px}
.site-nav__list{display:flex;align-items:center;gap:28px}
.site-nav__list a{
  color:var(--blue-100);font-size:.9375rem;padding:6px 0;
  border-bottom:2px solid transparent;display:inline-block;
}
.site-nav__list a:hover{color:#fff;text-decoration:none;border-bottom-color:var(--blue-400)}
.site-nav__list a.is-active{color:#fff;border-bottom-color:var(--blue-400)}

.nav-toggle{
  display:none;align-items:center;gap:10px;margin-left:auto;
  background:transparent;border:1px solid var(--rule-dark);color:var(--paper-50);
  font-family:var(--font-mono);font-size:.8125rem;padding:10px 14px;cursor:pointer;
}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:3px;width:16px}
.nav-toggle__bars span{display:block;height:1px;background:currentColor}
.nav-toggle[aria-expanded="true"]{border-color:var(--blue-400);color:#fff}

/* ---------- 6. Hero ---------- */
.hero{position:relative;background:var(--navy-950);color:var(--paper-50);isolation:isolate}
.hero__media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.hero__media img{width:100%;height:100%;object-fit:cover;object-position:center 40%}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(90deg,rgba(10,26,43,.94) 0%,rgba(10,26,43,.80) 46%,rgba(10,26,43,.34) 100%),
    linear-gradient(180deg,rgba(10,26,43,.72) 0%,rgba(10,26,43,.12) 45%,rgba(10,26,43,.88) 100%);
}
.hero__inner{
  max-width:var(--maxw);margin-inline:auto;padding:132px var(--gutter) 96px;
  min-height:min(84vh,760px);display:flex;align-items:center;
}
.hero__grid{display:grid;grid-template-columns:auto minmax(0,1fr);gap:32px;align-items:start;width:100%}
.hero__copy{max-width:56ch}
.hero__title{max-width:20ch;text-wrap:balance}
.hero__sub{
  margin-top:22px;max-width:52ch;font-size:1.125rem;
  color:rgba(245,246,244,.86);
}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero__foot{
  position:relative;max-width:var(--maxw);margin-inline:auto;
  padding:0 var(--gutter) 22px;display:flex;flex-wrap:wrap;gap:28px;
  font-size:var(--fs-small);color:rgba(220,231,240,.72);
}
.hero__foot .mono{padding-left:16px;border-left:1px solid var(--rule-dark)}

/* Spec plate — the drawing title-block callout */
.spec-plate{
  border:1px solid rgba(220,231,240,.45);
  border-left:3px solid var(--blue-400);
  padding:16px 20px;background:rgba(10,26,43,.55);
  display:inline-flex;flex-direction:column;gap:4px;min-width:132px;
}
.spec-plate__value{font-family:var(--font-mono);font-size:2rem;line-height:1;font-weight:500}
.spec-plate__label{
  font-family:var(--font-mono);font-size:.6875rem;letter-spacing:.06em;
  color:var(--blue-100);opacity:.8;
}

/* Hero reveal — the single deliberate motion on the page */
[data-reveal]{opacity:0;transform:translateY(14px)}
.is-revealed [data-reveal]{
  opacity:1;transform:none;
  transition:opacity .5s cubic-bezier(.2,.6,.2,1),transform .5s cubic-bezier(.2,.6,.2,1);
}
.is-revealed [data-reveal="1"]{transition-delay:.05s}
.is-revealed [data-reveal="2"]{transition-delay:.14s}
.is-revealed [data-reveal="3"]{transition-delay:.23s}
.is-revealed [data-reveal="4"]{transition-delay:.32s}
.is-revealed [data-reveal="5"]{transition-delay:.41s}
.no-motion [data-reveal]{opacity:1;transform:none;transition:none}

/* ---------- 7. Stat band ---------- */
.stat-band{background:var(--navy-950);color:var(--paper-50);border-top:1px solid var(--rule-dark)}
.stat-band__inner{
  max-width:var(--maxw);margin-inline:auto;padding:0 var(--gutter);
  display:grid;grid-template-columns:repeat(4,1fr);column-gap:48px;
}
.stat{position:relative;padding:38px 0 40px}
.stat+.stat::before{
  content:"";position:absolute;left:-24px;top:0;bottom:0;width:1px;background:var(--rule-dark);
}
.stat__value{display:block;font-size:2.75rem;line-height:1;font-weight:500}
.stat__unit{font-size:1.375rem;margin-left:2px;color:var(--blue-400)}
.stat__label{display:block;margin-top:12px;font-size:var(--fs-small);color:rgba(220,231,240,.72)}

/* ---------- 8. About ---------- */
.about__grid{display:grid;grid-template-columns:5fr 7fr;gap:64px;align-items:start}
.about__figure{margin:0}
.about__figure img{width:100%;height:100%;aspect-ratio:4/5;object-fit:cover;border:1px solid var(--rule-light)}
.dim-note{
  display:flex;align-items:center;gap:12px;margin-top:14px;
  color:var(--blue-600);font-size:var(--fs-small);line-height:var(--lh-small);
}
.dim-line{width:74px;height:12px;flex:none;color:var(--blue-600)}
.about__copy > p{max-width:62ch}
.about__facts{margin-top:34px;border-top:1px solid var(--rule-light)}
.about__facts li{
  display:flex;gap:20px;align-items:baseline;
  padding:14px 0;border-bottom:1px solid var(--rule-light);font-size:.9375rem;
}
.about__facts .mono{color:var(--blue-600);min-width:76px;font-size:.875rem}

/* ---------- 9. Services ---------- */
.services__grid{display:grid;grid-template-columns:repeat(3,1fr);column-gap:64px}
.service{position:relative}
.service+.service::before{
  content:"";position:absolute;left:-32px;top:0;bottom:0;width:1px;background:var(--rule-light);
}
.service__media{margin-bottom:26px;border:1px solid var(--rule-light);background:var(--paper-50);aspect-ratio:4/3;overflow:hidden}
.service__media img{width:100%;height:100%;object-fit:cover}
.service__title{margin-bottom:12px}
.service__body{font-size:1rem;max-width:44ch}
.service__list{margin-top:20px;border-top:1px solid var(--rule-light)}
.service__list li{
  position:relative;padding:11px 0 11px 20px;border-bottom:1px solid var(--rule-light);
  font-size:.9375rem;
}
.service__list li::before{
  content:"";position:absolute;left:0;top:19px;width:9px;height:1px;background:var(--blue-600);
}

/* ---------- 10. Process ---------- */
.process__list{display:grid;grid-template-columns:repeat(5,1fr);column-gap:48px}
.step{position:relative}
.step+.step::before{
  content:"";position:absolute;left:-24px;top:0;bottom:0;width:1px;background:var(--rule-dark);
}
.step__num{
  display:block;font-size:.875rem;color:var(--blue-400);
  padding-bottom:14px;margin-bottom:18px;border-bottom:1px solid var(--rule-dark);
}
.step__title{font-size:1.1875rem;margin-bottom:10px}
.step p{font-size:.9375rem;color:rgba(220,231,240,.78)}

/* ---------- 11. Work gallery ---------- */
.work__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule-light);border:1px solid var(--rule-light)}
.work__item{position:relative;background:var(--paper-50);overflow:hidden}
.work__item img{width:100%;height:100%;aspect-ratio:3/2;object-fit:cover;display:block}
.work__meta{
  position:absolute;inset:auto 0 0 0;
  background:linear-gradient(180deg,rgba(10,26,43,0) 0%,rgba(10,26,43,.92) 58%);
  color:var(--paper-50);padding:44px 20px 18px;
}
.work__title{font-size:1.0625rem;font-weight:500}
.work__spec{
  font-size:.75rem;color:var(--blue-100);margin:8px 0 0;
  max-height:0;opacity:0;overflow:hidden;
  transition:max-height .12s linear,opacity .12s linear;
}
.work__item:hover .work__spec,
.work__item:focus-within .work__spec{max-height:4em;opacity:1}
.work__note{margin-top:20px;font-size:var(--fs-small);color:var(--blue-600)}

/* ---------- 12. Certifications ---------- */
.certs__row{
  display:grid;grid-template-columns:repeat(5,1fr);column-gap:44px;
  border-top:1px solid var(--rule-light);
}
.cert{
  position:relative;padding:26px 0;border-bottom:1px solid var(--rule-light);
  display:flex;flex-direction:column;gap:10px;
}
.cert+.cert::before{
  content:"";position:absolute;left:-22px;top:0;bottom:-1px;width:1px;background:var(--rule-light);
}
.cert__code{font-size:1.0625rem;color:var(--navy-950)}
.cert__name{font-size:var(--fs-small);line-height:var(--lh-small);color:rgba(16,22,29,.7)}
.certs__note{margin-top:26px;max-width:58ch;font-size:.9375rem;color:rgba(16,22,29,.78)}

/* ---------- 13. Testimonial ---------- */
.quote-section{padding-block:88px}
.pull-quote{margin:0;max-width:72ch;border-left:3px solid var(--blue-400);padding-left:32px}
.pull-quote p{
  font-family:var(--font-display);font-weight:500;font-size:1.6875rem;line-height:1.35;
  letter-spacing:-.015em;
}
.pull-quote__by{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;
  font-size:var(--fs-small);color:rgba(220,231,240,.7);
}

/* ---------- 14. CTA + quote form ---------- */
.cta{background:var(--paper-50);border-top:1px solid var(--rule-light)}
.cta__grid{display:grid;grid-template-columns:6fr 6fr;gap:64px;align-items:start}
.cta__rule{display:block;width:88px;height:3px;background:var(--blue-600);margin-bottom:28px}
.cta__title{font-size:2.75rem;line-height:1.08;max-width:16ch;margin-bottom:20px}
.cta__copy > p{max-width:48ch}
.cta__contacts{margin-top:32px;border-top:1px solid var(--rule-light)}
.cta__contacts li{
  display:flex;gap:20px;align-items:baseline;padding:13px 0;
  border-bottom:1px solid var(--rule-light);font-size:.9375rem;
}
.cta__contact-label{min-width:70px;font-size:var(--fs-small);color:rgba(16,22,29,.55)}
.cta__contacts .mono{font-size:.9375rem}

.quote-form{border:1px solid var(--rule-light);border-top:3px solid var(--navy-950);padding:32px;background:#fff}
.quote-form__intro{
  font-size:var(--fs-small);color:var(--blue-600);
  margin:0 0 24px;padding-bottom:14px;border-bottom:1px solid var(--rule-light);
}
.field{margin-bottom:20px}
.field label{display:block;font-size:var(--fs-small);margin-bottom:7px;color:rgba(16,22,29,.8)}
.field__opt{color:rgba(16,22,29,.45)}
.field input,.field textarea{
  width:100%;font-family:var(--font-body);font-size:1rem;color:var(--ink-900);
  background:var(--paper-50);border:1px solid var(--rule-light);border-radius:0;
  padding:12px 14px;
}
.field input[type=file]{padding:10px 12px;font-size:.875rem;font-family:var(--font-mono)}
.field textarea{resize:vertical;min-height:110px;line-height:1.5}
.field input:focus,.field textarea:focus{outline:2px solid var(--blue-600);outline-offset:0;border-color:var(--blue-600)}
.field input::placeholder,.field textarea::placeholder{color:rgba(16,22,29,.4)}
.field.is-invalid input,.field.is-invalid textarea{border-color:var(--ember-500);background:#FBF1EC}
.field__error{
  margin:7px 0 0;font-family:var(--font-mono);font-size:.75rem;color:var(--ember-500);
}
.quote-form__status{margin-top:16px;font-size:.9375rem;min-height:1.4em}
.quote-form__status.is-ok{color:var(--blue-600)}
.quote-form__status.is-error{color:var(--ember-500)}

/* ---------- 15. Footer ---------- */
.site-footer{background:var(--navy-950);color:var(--paper-50);padding-top:72px}
.site-footer__inner{
  max-width:var(--maxw);margin-inline:auto;padding:0 var(--gutter) 56px;
  display:grid;grid-template-columns:4fr 2.5fr 3fr 2.5fr;gap:var(--gutter);
}
.logo--footer{margin-bottom:20px}
.site-footer__blurb{max-width:36ch;font-size:.9375rem;color:rgba(220,231,240,.72)}
.site-footer__head{
  font-family:var(--font-body);font-size:var(--fs-small);font-weight:600;
  color:var(--paper-50);margin:0 0 16px;padding-bottom:12px;
  border-bottom:1px solid var(--rule-dark);
}
.site-footer__list li{padding:6px 0;font-size:.9375rem;color:rgba(220,231,240,.78)}
.site-footer__list a{color:rgba(220,231,240,.85)}
.site-footer__list a:hover{color:#fff}
.site-footer__list--legal li{font-size:.8125rem;color:rgba(220,231,240,.6)}
.socials{display:flex;gap:12px;margin-top:20px}
.socials a{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border:1px solid var(--rule-dark);color:var(--blue-100);
}
.socials a:hover{border-color:var(--blue-400);color:#fff}
.socials svg{width:17px;height:17px}
.site-footer__base{
  border-top:1px solid var(--rule-dark);
}
.site-footer__base > *{margin:0}
.site-footer__base{
  max-width:var(--maxw);margin-inline:auto;padding:20px var(--gutter) 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.75rem;color:rgba(220,231,240,.55);
}

/* ---------- 16. Responsive ---------- */
@media (max-width:1080px){
  :root{--fs-h1:3rem;--fs-h2:2rem;--section-y:84px}
  .about__grid{gap:40px}
  .cta__grid{gap:40px}
  .process__list{grid-template-columns:repeat(2,1fr);column-gap:48px}
  .step{padding:26px 0;border-top:1px solid var(--rule-dark)}
  .step:nth-child(-n+2){padding-top:0;border-top:0}
  .step+.step::before{top:26px}
  .step:nth-child(odd)::before{display:none}
  .certs__row{grid-template-columns:repeat(3,1fr)}
  .cert:nth-child(3n+1)::before{display:none}
  .work__grid{grid-template-columns:repeat(2,1fr)}
  .site-footer__inner{grid-template-columns:repeat(2,1fr);gap:40px var(--gutter)}
}

@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .site-header__inner{min-height:66px}
  .site-header .reg-mark{display:none}
  .site-nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--navy-950);border-top:1px solid var(--rule-dark);
    border-bottom:1px solid var(--rule-dark);padding:8px var(--gutter) 20px;
  }
  .site-nav.is-open{display:flex}
  .site-nav__list{flex-direction:column;align-items:stretch;gap:0}
  .site-nav__list a{
    display:block;padding:14px 0;border-bottom:1px solid var(--rule-dark);
    border-left:2px solid transparent;padding-left:12px;
  }
  .site-nav__list a:hover,.site-nav__list a.is-active{
    border-bottom-color:var(--rule-dark);border-left-color:var(--blue-400);
  }
  .site-nav__cta{margin-top:18px;align-self:flex-start}
}

@media (max-width:768px){
  :root{--fs-h1:2.375rem;--fs-h2:1.75rem;--fs-h3:1.3125rem;--section-y:64px;--gutter:20px}
  .hero__inner{padding:64px var(--gutter) 56px;min-height:auto}
  .hero__grid{grid-template-columns:1fr;gap:26px}
  .hero__copy{max-width:none}
  .hero__title{max-width:none}
  .hero__actions .btn{flex:1 1 auto}
  .hero__foot{gap:10px 20px;padding-bottom:18px}
  .hero__foot .mono{padding-left:0;border-left:0;font-size:.75rem}
  .hero::after{
    background:
      linear-gradient(180deg,rgba(10,26,43,.86) 0%,rgba(10,26,43,.62) 40%,rgba(10,26,43,.94) 100%);
  }
  .stat-band__inner{grid-template-columns:repeat(2,1fr);column-gap:40px}
  .stat{padding:24px 0;border-top:1px solid var(--rule-dark)}
  .stat:nth-child(-n+2){border-top:0}
  .stat+.stat::before{top:24px}
  .stat:nth-child(odd)::before{display:none}
  .stat__value{font-size:2.125rem}
  .about__grid{grid-template-columns:1fr;gap:34px}
  .services__grid{grid-template-columns:1fr}
  .service{padding-top:32px;margin-top:32px;border-top:1px solid var(--rule-light)}
  .service:first-child{border-top:0;padding-top:0;margin-top:0}
  .service+.service::before{display:none}
  .process__list{grid-template-columns:1fr}
  .step{padding:24px 0;border-top:1px solid var(--rule-dark)}
  .step:first-child{padding-top:0;border-top:0}
  .step+.step::before{display:none}
  .work__grid{grid-template-columns:1fr}
  .work__spec{max-height:4em;opacity:1}   /* no hover on touch — always show the specs */
  .certs__row{grid-template-columns:repeat(2,1fr);column-gap:32px}
  .cert{padding:20px 0}
  .cert+.cert::before{left:-16px;display:block}
  .cert:nth-child(odd)::before{display:none}
  .cta__contacts li{flex-wrap:wrap;gap:4px 20px}
  .cta__contacts .mono,.site-footer__list--contact .mono{font-size:.875rem;overflow-wrap:anywhere}
  .site-footer__list a{overflow-wrap:anywhere}
  .pull-quote{padding-left:20px}
  .pull-quote p{font-size:1.25rem}
  .cta__grid{grid-template-columns:1fr;gap:40px}
  .cta__title{font-size:2rem}
  .quote-form{padding:24px 20px}
  .site-footer__inner{grid-template-columns:1fr;gap:36px}
  .section--sheet::before{background-size:calc(100% / 4) 100%,100% 48px}
}

/* ---------- 17. Motion preference ---------- */
@media (prefers-reduced-motion:reduce){
  html:focus-within{scroll-behavior:auto}
  [data-reveal]{opacity:1!important;transform:none!important;transition:none!important}
  *,*::before,*::after{animation-duration:.001ms!important;transition-duration:.001ms!important}
}

/* ---------- 18. Print ---------- */
@media print{
  .site-header,.nav-toggle,.hero__media,.quote-form,.socials{display:none}
  body{background:#fff;color:#000}
  .section{padding:24px 0}
}

/* =========================================================================
   19. Interior page components (services / work / about / certifications / contact)
   ========================================================================= */

/* --- Page hero: shorter than the home hero, same drawing-sheet logic --- */
.page-hero{position:relative;background:var(--navy-950);color:var(--paper-50);isolation:isolate}
.page-hero__media{position:absolute;inset:0;z-index:-2;overflow:hidden}
.page-hero__media img{width:100%;height:100%;object-fit:cover;object-position:center 45%}
.page-hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    linear-gradient(90deg,rgba(10,26,43,.95) 0%,rgba(10,26,43,.82) 52%,rgba(10,26,43,.42) 100%),
    linear-gradient(180deg,rgba(10,26,43,.7) 0%,rgba(10,26,43,.2) 50%,rgba(10,26,43,.85) 100%);
}
.page-hero__inner{
  max-width:var(--maxw);margin-inline:auto;padding:64px var(--gutter) 56px;
  position:relative;
}
.page-hero__label{font-size:var(--fs-small);color:var(--blue-100);opacity:.75;margin:0 0 14px}
.page-hero__title{max-width:20ch;text-wrap:balance}
.page-hero__sub{margin-top:20px;max-width:60ch;font-size:1.0625rem;color:rgba(245,246,244,.86)}
.page-hero__facts{
  display:flex;flex-wrap:wrap;gap:0;margin-top:36px;
  border-top:1px solid var(--rule-dark);
}
.page-hero__facts li{
  padding:16px 28px 0 0;margin-right:28px;border-right:1px solid var(--rule-dark);
  font-size:var(--fs-small);color:rgba(220,231,240,.78);
}
.page-hero__facts li:last-child{border-right:0;margin-right:0;padding-right:0}
.page-hero__facts b{
  display:block;font-family:var(--font-mono);font-size:1.375rem;font-weight:500;
  color:var(--paper-50);margin-bottom:4px;
}

/* --- Breadcrumb --- */
.crumbs{
  display:flex;flex-wrap:wrap;gap:8px;align-items:center;
  font-family:var(--font-mono);font-size:.75rem;color:rgba(220,231,240,.6);margin-bottom:22px;
}
.crumbs a{color:rgba(220,231,240,.8)}
.crumbs a:hover{color:#fff}
.crumbs span[aria-hidden]{opacity:.5}

/* --- Split layout: sticky index column + body --- */
.split{display:grid;grid-template-columns:3fr 9fr;gap:64px;align-items:start}
.split__aside{position:sticky;top:100px}
.split__index{border-top:1px solid var(--rule-light)}
.split__index li{border-bottom:1px solid var(--rule-light)}
.split__index a{
  display:flex;gap:12px;padding:12px 0;font-size:.9375rem;color:var(--ink-900);
}
.split__index a:hover{color:var(--blue-600);text-decoration:none}
.split__index .mono{color:var(--blue-600);font-size:.8125rem}
.section--dark .split__index{border-top-color:var(--rule-dark)}
.section--dark .split__index li{border-bottom-color:var(--rule-dark)}
.section--dark .split__index a{color:var(--blue-100)}

/* --- Deep content blocks --- */
.deep{padding-top:8px;margin-bottom:88px;scroll-margin-top:96px}
.deep:last-child{margin-bottom:0}
.deep__head{border-top:2px solid var(--navy-950);padding-top:20px;margin-bottom:28px}
.deep__eyebrow{font-family:var(--font-mono);font-size:.8125rem;color:var(--blue-600);margin:0 0 10px}
.deep__lead{font-size:1.125rem;max-width:62ch}
.deep p{max-width:66ch}
.deep__figure{margin:32px 0 0}
.deep__figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border:1px solid var(--rule-light)}
.deep__figure--portrait{display:grid;grid-template-columns:minmax(0,360px) minmax(0,1fr);gap:28px;align-items:end}
.deep__figure--portrait img{aspect-ratio:2/3}
.deep__figure--portrait figcaption{margin-top:0;padding-bottom:6px;max-width:44ch;line-height:1.6}
@media (max-width:768px){.deep__figure--portrait{grid-template-columns:1fr;gap:12px;align-items:start}}
.deep__figure figcaption{
  margin-top:10px;font-family:var(--font-mono);font-size:.75rem;color:var(--blue-600);
}
.deep__cols{display:grid;grid-template-columns:repeat(2,1fr);column-gap:48px;margin-top:32px}
.deep__cols > div{position:relative}
.deep__cols > div + div::before{
  content:"";position:absolute;left:-24px;top:0;bottom:0;width:1px;background:var(--rule-light);
}
.deep h4{
  font-family:var(--font-body);font-size:var(--fs-small);font-weight:600;
  margin:0 0 12px;padding-bottom:10px;border-bottom:1px solid var(--rule-light);
}

/* --- Spec table --- */
.spec-table{width:100%;border-collapse:collapse;margin-top:28px;font-size:.9375rem}
.spec-table caption{
  text-align:left;font-family:var(--font-mono);font-size:.75rem;color:var(--blue-600);
  padding-bottom:10px;
}
.spec-table th,.spec-table td{
  text-align:left;padding:12px 16px 12px 0;border-bottom:1px solid var(--rule-light);
  vertical-align:top;
}
.spec-table thead th{
  font-family:var(--font-mono);font-size:.75rem;font-weight:500;color:var(--blue-600);
  border-bottom:1px solid var(--rule-light);letter-spacing:0;
}
.spec-table tbody th{font-weight:600;width:34%}
.spec-table td .mono{font-size:.875rem}
.section--dark .spec-table th,.section--dark .spec-table td{border-bottom-color:var(--rule-dark)}
.section--dark .spec-table thead th{color:var(--blue-100)}

/* --- Tick list --- */
.tick-list{margin-top:22px;border-top:1px solid var(--rule-light)}
.tick-list li{
  position:relative;padding:11px 0 11px 22px;border-bottom:1px solid var(--rule-light);
  font-size:.9375rem;
}
.tick-list li::before{
  content:"";position:absolute;left:0;top:19px;width:10px;height:1px;background:var(--blue-600);
}
.section--dark .tick-list{border-top-color:var(--rule-dark)}
.section--dark .tick-list li{border-bottom-color:var(--rule-dark)}
.section--dark .tick-list li::before{background:var(--blue-400)}

/* --- Callout plate --- */
.plate{
  border:1px solid var(--rule-light);border-left:3px solid var(--blue-600);
  padding:22px 24px;margin-top:32px;background:#fff;
}
.plate__label{font-family:var(--font-mono);font-size:.75rem;color:var(--blue-600);margin:0 0 8px}
.plate p{margin:0;font-size:.9375rem;max-width:60ch}
.section--dark .plate{background:var(--steel-800);border-color:var(--rule-dark);border-left-color:var(--blue-400)}

/* --- Project cards (work index) --- */
.project{
  display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;
  padding:44px 0;border-top:1px solid var(--rule-light);
}
.project:first-of-type{border-top:2px solid var(--navy-950)}
.project__media img{width:100%;aspect-ratio:4/3;object-fit:cover;border:1px solid var(--rule-light)}
.project__ref{font-family:var(--font-mono);font-size:.75rem;color:var(--blue-600);margin:0 0 10px}
.project__title{margin-bottom:12px}
.project p{max-width:60ch;font-size:.9375rem}
.project__specs{
  display:grid;grid-template-columns:repeat(2,1fr);column-gap:32px;
  margin-top:20px;border-top:1px solid var(--rule-light);
}
.project__specs div{
  display:flex;gap:14px;justify-content:space-between;
  padding:10px 0;border-bottom:1px solid var(--rule-light);font-size:.875rem;
}
.project__specs dt{color:rgba(16,22,29,.55)}
.project__specs dd{margin:0;font-family:var(--font-mono);text-align:right}

/* --- Timeline --- */
.timeline{margin-top:40px;border-top:1px solid var(--rule-light)}
.timeline li{
  display:grid;grid-template-columns:110px 1fr;gap:28px;
  padding:20px 0;border-bottom:1px solid var(--rule-light);
}
.timeline .mono{color:var(--blue-600);font-size:.875rem}
.timeline h3{font-size:1.0625rem;font-weight:500;margin-bottom:6px}
.timeline p{margin:0;font-size:.9375rem;max-width:60ch;color:rgba(16,22,29,.8)}

/* --- Crew / capability cards --- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);column-gap:48px;margin-top:40px}
.card{position:relative}
.card + .card::before{
  content:"";position:absolute;left:-24px;top:0;bottom:0;width:1px;background:var(--rule-light);
}
.card__media{aspect-ratio:3/2;overflow:hidden;border:1px solid var(--rule-light);margin-bottom:20px}
.card__media img{width:100%;height:100%;object-fit:cover}
.card__role{font-family:var(--font-mono);font-size:.75rem;color:var(--blue-600);margin:0 0 8px}
.card h3{font-size:1.125rem;margin-bottom:10px}
.card p{font-size:.9375rem;color:rgba(16,22,29,.8)}
.section--dark .card + .card::before{background:var(--rule-dark)}
.section--dark .card p{color:rgba(220,231,240,.78)}
.section--dark .card__role{color:var(--blue-400)}

/* --- Image strip --- */
.strip{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--rule-light);margin-top:48px}
.strip figure{margin:0;background:var(--paper-50);position:relative}
.strip img{width:100%;aspect-ratio:3/2;object-fit:cover;display:block}
.strip figcaption{
  padding:12px 0 0;font-family:var(--font-mono);font-size:.75rem;color:var(--blue-600);
  background:var(--paper-50);
}

/* --- FAQ --- */
.faq{margin-top:32px;border-top:1px solid var(--rule-light)}
.faq details{border-bottom:1px solid var(--rule-light)}
.faq summary{
  cursor:pointer;padding:16px 32px 16px 0;position:relative;list-style:none;
  font-family:var(--font-display);font-weight:500;font-size:1.0625rem;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"";position:absolute;right:6px;top:50%;width:11px;height:1px;background:var(--blue-600);
}
.faq summary::before{
  content:"";position:absolute;right:11px;top:calc(50% - 5px);width:1px;height:11px;background:var(--blue-600);
  transition:opacity .12s linear;
}
.faq details[open] summary::before{opacity:0}
.faq details p{padding:0 0 18px;max-width:64ch;font-size:.9375rem;color:rgba(16,22,29,.82)}

/* --- Closing CTA strip --- */
.cta-strip{background:var(--steel-800);color:var(--paper-50)}
.cta-strip__inner{
  max-width:var(--maxw);margin-inline:auto;padding:56px var(--gutter);
  display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between;
}
.cta-strip h2{font-size:1.75rem;max-width:24ch;margin-bottom:8px}
.cta-strip p{margin:0;color:rgba(220,231,240,.8);font-size:.9375rem}
.cta-strip__actions{display:flex;flex-wrap:wrap;gap:12px}

/* --- Related pages --- */
.related{display:grid;grid-template-columns:repeat(3,1fr);column-gap:48px;margin-top:16px}
.related a{
  display:block;padding:22px 0;border-top:1px solid var(--rule-light);color:var(--ink-900);
}
.related a:hover{text-decoration:none;color:var(--blue-600)}
.related .mono{display:block;font-size:.75rem;color:var(--blue-600);margin-bottom:8px}
.related strong{font-family:var(--font-display);font-weight:500;font-size:1.0625rem}

/* --- Interior responsive --- */
@media (max-width:1080px){
  .split{grid-template-columns:1fr;gap:36px}
  .split__aside{position:static}
  .cards{grid-template-columns:repeat(2,1fr);row-gap:40px}
  .card:nth-child(odd)::before{display:none}
  .related{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .page-hero__inner{padding:40px var(--gutter) 40px}
  .page-hero__facts li{padding-right:18px;margin-right:18px}
  .page-hero__facts b{font-size:1.125rem}
  .deep{margin-bottom:56px}
  .deep__cols{grid-template-columns:1fr;row-gap:28px}
  .deep__cols > div + div::before{display:none}
  .project{grid-template-columns:1fr;gap:24px}
  .project__specs{grid-template-columns:1fr}
  .timeline li{grid-template-columns:1fr;gap:6px}
  .cards{grid-template-columns:1fr;row-gap:36px}
  .card + .card::before{display:none}
  .strip{grid-template-columns:1fr}
  .related{grid-template-columns:1fr}
  .related a{padding:18px 0}
  .cta-strip__inner{padding:40px var(--gutter)}
  .spec-table tbody th{width:auto}
  .spec-table{display:block;overflow-x:auto}
}

/* --- Section-level link through to a deeper page --- */
.section__more{margin:18px 0 0;font-size:.9375rem}
.section__more a{color:var(--blue-600)}
.section--dark .section__more a{color:var(--blue-400)}
.about__copy .section__more{margin-top:22px}

/* --- Overflow guards: grid/flex children must be allowed to shrink --- */
.split__body,.split__aside,.deep,.deep__cols > div,
.project > div,.card,.cta__copy,.strip figure{min-width:0}
.spec-table{max-width:100%}
@media (max-width:768px){
  .spec-table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .spec-table thead,.spec-table tbody,.spec-table tr{display:table;width:100%;table-layout:fixed}
  .spec-table caption{display:block}
}

/* --- Error pages --- */
.error-hero .page-hero__inner{padding-block:96px 88px}
.error__code{
  font-size:.8125rem;color:var(--blue-400);margin:0 0 18px;
  padding-bottom:14px;border-bottom:1px solid var(--rule-dark);display:inline-block;
}
.error-hero .page-hero__title{max-width:16ch}
@media (max-width:768px){.error-hero .page-hero__inner{padding-block:56px 48px}}