/* ============================================================
   NEXUS Import & Export Co., Ltd. — style.css
   Traditional-industrial MEP contractor site.
   One shared stylesheet for all six pages. No frameworks.
   ============================================================ */

/* ---- 1. Design tokens ------------------------------------ */
:root {
  --ink:      #1B1F23;
  --graphite: #2E3A45;
  --steel:    #5C6B7A;
  --paper:    #F4F5F6;
  --line:     #D9DDE1;
  --safety:   #2E7D32;
  --safety-d: #1B5E20;   /* pressed/hover green */
  --safety-lt: #4CAF50;  /* light green: dark surfaces + logo */
  --white:    #FFFFFF;

  /* text on dark surfaces */
  --on-dark:      #E8ECEF;
  --on-dark-soft: #AEB9C2;
  --line-dark:    rgba(255,255,255,.16);

  --maxw: 1200px;
  --pad:  24px;
  --sp-section: 96px;

  --f-display: "Oswald", "Arial Narrow", system-ui, sans-serif;
  --f-body:    "Open Sans", "Noto Sans Khmer", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
}

/* ---- 2. Reset & base ------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--f-body);
  font-size: 1.0625rem;      /* 17px */
  line-height: 1.6;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { display: block; max-width: 100%; }
img { height: auto; }

a { color: inherit; text-decoration: none; }

h1, h2, h3, h4 {
  font-family: var(--f-display);
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.04;
  letter-spacing: .02em;
  margin: 0;
  color: var(--ink);
}

p  { margin: 0 0 1rem; }
ul { margin: 0; padding: 0; list-style: none; }

strong { font-weight: 600; }

/* Reduce motion globally where asked */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .001ms !important;
    transition-duration: .001ms !important;
  }
}

/* ---- 3. Layout primitives -------------------------------- */
.container {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--pad);
}

.section { padding-block: var(--sp-section); }
.section--tight { padding-block: 64px; }

.band {                       /* dark graphite full-bleed section */
  background: var(--graphite);
  color: var(--on-dark);
}
.band h1, .band h2, .band h3 { color: var(--white); }
.band p { color: var(--on-dark-soft); }

.section-head { max-width: 62ch; margin-bottom: 40px; }
.section-head p { color: var(--steel); font-size: 1.125rem; margin-bottom: 0; }
.band .section-head p { color: var(--on-dark-soft); }

.lede { font-size: 1.2rem; color: var(--steel); }
.band .lede { color: var(--on-dark-soft); }

.center { text-align: center; }
.center .section-head { margin-inline: auto; }

/* Skip link */
.skip-link {
  position: absolute; left: 12px; top: -60px;
  background: var(--safety); color: #fff;
  padding: 10px 16px; z-index: 200;
  font-family: var(--f-display); text-transform: uppercase; letter-spacing: .04em;
  transition: top .15s ease;
}
.skip-link:focus { top: 12px; }

/* Focus ring */
:focus-visible { outline: 3px solid var(--safety); outline-offset: 2px; }

/* ---- 4. Signature: engineering title-block eyebrow ------- */
.eyebrow {
  display: inline-block;
  font-family: var(--f-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .82rem;
  margin-bottom: 14px;
}
.eyebrow__code { display: none; }
.eyebrow__label { color: var(--safety); }
.eyebrow--dark .eyebrow__label { color: var(--safety-lt); }

/* ---- 5. Icons -------------------------------------------- */
.icon {
  width: 24px; height: 24px;
  stroke: currentColor; fill: none;
  stroke-width: 1.5; stroke-linecap: round; stroke-linejoin: round;
  flex: none;
}
.icon--lg { width: 40px; height: 40px; }
.icon--sm { width: 18px; height: 18px; }

/* ---- 6. Buttons ------------------------------------------ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  font-family: var(--f-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  font-size: 1.2rem;             /* 19.2px — keeps white-on-accent in AA large-text range */
  line-height: 1;
  padding: 14px 24px;
  border: 2px solid transparent;
  border-radius: 2px;
  cursor: pointer;
  transition: background-color .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn .icon { width: 20px; height: 20px; stroke-width: 1.75; }

.btn--primary { background: var(--safety); color: #fff; border-color: var(--safety); }
.btn--primary:hover { background: var(--safety-d); border-color: var(--safety-d); }

.btn--outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.7); }
.btn--outline-light:hover { background: #fff; color: var(--ink); border-color: #fff; }

.btn--outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn--outline:hover { background: var(--ink); color: #fff; }

.btn--ghost-dark { background: rgba(255,255,255,.06); color: #fff; border-color: var(--line-dark); }
.btn--ghost-dark:hover { background: rgba(255,255,255,.14); }

.btn--sm { font-size: 1rem; padding: 10px 16px; }
.btn--block { width: 100%; justify-content: center; }

/* Inline "read more" link — ink text, green arrow, green on hover */
.arrow-link {
  display: inline-flex; align-items: center; gap: .4em;
  font-family: var(--f-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .06em; font-size: .95rem; color: var(--ink);
}
.arrow-link .arw { color: var(--safety); }
.arrow-link:hover { color: var(--safety); }

.band .arrow-link { color: var(--white); }

/* ---- 7. Header ------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--white);
  border-bottom: 1px solid var(--line);
  box-shadow: 0 6px 18px -14px rgba(0,0,0,.35);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px; min-height: 74px;
}

/* Brand lockup */
.brand { display: flex; align-items: center; gap: 12px; }
.brand__logo { width: 40px; height: 40px; flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__mark {
  font-family: var(--f-display); font-weight: 700;
  font-size: 1.55rem; letter-spacing: .18em; color: var(--ink);
}
.brand__sub {
  font-family: var(--f-display); font-weight: 500;
  font-size: .56rem; letter-spacing: .22em; color: var(--steel);
  margin-top: 3px;
}

/* Desktop nav */
.nav { display: flex; align-items: center; gap: 30px; margin-left: auto; }
.nav a {
  font-family: var(--f-body); font-weight: 600;
  font-size: .9rem; text-transform: uppercase; letter-spacing: .07em;
  color: var(--ink); padding: 26px 0;
  border-bottom: 3px solid transparent;
}
.nav a:hover { color: var(--safety); }
.nav a[aria-current="page"] { border-bottom-color: var(--safety); }

.header-cta { display: flex; align-items: center; gap: 14px; }

/* Hamburger */
.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  border: 1px solid var(--line); background: var(--white);
  border-radius: 2px; cursor: pointer;
  padding: 0; color: var(--ink);
}
.nav-toggle .icon { width: 24px; height: 24px; margin: auto; }



/* Mobile drawer */
.drawer { display: none; }

@media (max-width: 900px) {
  .nav, .header-cta .btn--call-label { display: none; }
  .nav-toggle { display: inline-flex; }
  .header-cta .btn--call { padding: 10px 14px; font-size: .95rem; }

  .drawer {
    display: block;
    position: fixed; inset: 0 0 0 auto;
    width: min(84vw, 340px);
    background: var(--graphite);
    color: var(--on-dark);
    transform: translateX(100%);
    transition: transform .2s ease;
    z-index: 100;
    padding: 24px;
    overflow-y: auto;
  }
  .drawer.is-open { transform: translateX(0); }
  .drawer__head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; }
  .drawer__head .brand__mark { color: #fff; }
  .drawer__close {
    width: 44px; height: 44px; background: transparent;
    border: 1px solid var(--line-dark); color: #fff; border-radius: 2px; cursor: pointer;
  }
  .drawer nav a {
    display: block;
    font-family: var(--f-display); font-weight: 600;
    font-size: 1.5rem; text-transform: uppercase; letter-spacing: .04em;
    color: #fff; padding: 14px 0;
    border-bottom: 1px solid var(--line-dark);
  }
  .drawer nav a[aria-current="page"] { color: var(--safety); }
  .drawer__foot { margin-top: 28px; display: grid; gap: 12px; }
  .drawer__foot a { color: var(--on-dark-soft); font-size: .95rem; display: flex; gap: 10px; align-items: center; }

  .backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,.5);
    z-index: 90; opacity: 0; visibility: hidden; transition: opacity .2s ease;
  }
  .backdrop.is-open { opacity: 1; visibility: visible; }
}

/* ---- 8. Media wrapper (photos) --------------------------- */
.media { position: relative; overflow: hidden; background: var(--graphite); }
.media img {
  width: 100%; height: 100%; object-fit: cover;
  filter: saturate(.85) contrast(1.02);
}
.media--16x9 { aspect-ratio: 16 / 9; }
.media--4x3  { aspect-ratio: 4 / 3; }
.media--3x2  { aspect-ratio: 3 / 2; }
.media--1x1  { aspect-ratio: 1 / 1; }
/* contained (e.g. a diagram on white) instead of full-bleed cover */
.media--contain { background: #fff; }
.media--contain img { object-fit: contain; filter: none; }

/* Graphite overlay for text-over-photo */
.media--overlay::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(27,31,35,.86) 0%, rgba(27,31,35,.62) 45%, rgba(27,31,35,.42) 100%);
}

/* ---- 9. Hero --------------------------------------------- */
.hero {
  position: relative;
  min-height: 70vh;
  display: flex; align-items: flex-end;
  color: #fff; overflow: hidden;
  background: var(--graphite);
}
/* Hero slider */
.hero__slides { position: absolute; inset: 0; z-index: 0; }
.hero__slide { position: absolute; inset: 0; opacity: 0; transition: opacity .6s ease; }
.hero__slide.is-active { opacity: 1; }
.hero__slide img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85) contrast(1.03); }
.hero__overlay {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    linear-gradient(90deg, rgba(27,31,35,.85) 0%, rgba(27,31,35,.55) 55%, rgba(27,31,35,.35) 100%),
    linear-gradient(0deg, rgba(27,31,35,.6) 0%, rgba(27,31,35,0) 40%);
}
.hero__dots {
  position: absolute; z-index: 3; bottom: 22px; left: 0; right: 0;
  display: flex; justify-content: center; gap: 10px;
}
.hero__dot {
  width: 34px; height: 4px; padding: 0; border: 0; border-radius: 0;
  background: rgba(255,255,255,.4); cursor: pointer; transition: background-color .2s ease;
}
.hero__dot:hover { background: rgba(255,255,255,.75); }
.hero__dot.is-active { background: var(--safety); }
@media (prefers-reduced-motion: reduce) { .hero__slide { transition: none; } }
.hero__content { position: relative; z-index: 2; padding-block: 72px; max-width: 760px; }
.hero .eyebrow { background: transparent; border-color: var(--line-dark); }
.hero .eyebrow__code { border-right-color: var(--line-dark); }
.hero .eyebrow__label { color: rgba(255,255,255,.82); }
.hero h1 {
  color: #fff;
  font-size: clamp(2.6rem, 6vw, 4.5rem);
  letter-spacing: .01em;
  margin-bottom: 18px;
  max-width: 16ch;
}
.hero__sub { font-size: 1.2rem; color: rgba(255,255,255,.9); max-width: 52ch; margin-bottom: 28px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---- 10. Intro strip + stats ----------------------------- */
.intro-grid {
  display: grid; grid-template-columns: 1.1fr 1.4fr; gap: 56px; align-items: center;
}
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1px; background: var(--line); border: 1px solid var(--line);
}
.stat { background: var(--white); padding: 26px 22px; }
.band .stats, .band .stat { background: var(--line-dark); }
.band .stat { background: rgba(255,255,255,.03); }
.stat__num {
  font-family: var(--f-body); font-weight: 600;
  font-variant-numeric: tabular-nums;
  font-size: clamp(2.4rem, 5vw, 3.3rem); line-height: 1; color: var(--ink);
  display: flex; align-items: baseline; gap: .04em;
}
.band .stat__num { color: #fff; }
.stat__num .u { color: var(--safety); font-size: .7em; }
.stat__label {
  font-family: var(--f-display); text-transform: uppercase;
  letter-spacing: .07em; color: var(--steel); font-size: .95rem; margin-top: 8px;
}
.band .stat__label { color: var(--on-dark-soft); }

/* ---- 11. Grids ------------------------------------------- */
.grid { display: grid; gap: 24px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

/* ---- 12. Cards ------------------------------------------- */
.card {
  background: var(--white); border: 1px solid var(--line);
  padding: 30px 28px; display: flex; flex-direction: column; gap: 14px;
  transition: border-color .15s ease, transform .15s ease;
}
.card:hover { border-color: var(--steel); }
.card__icon {
  width: 52px; height: 52px; display: grid; place-items: center;
  border: 1px solid var(--line); color: var(--safety); border-radius: 2px;
}
.card h3 { font-size: 1.3rem; }
.card p  { color: var(--steel); margin-bottom: 0; font-size: 1rem; }
.card .arrow-link { margin-top: auto; }

/* Numbered service header inside card */
.card__no {
  font-family: var(--f-display); font-weight: 700; font-size: .82rem;
  color: var(--safety); letter-spacing: .08em;
}

/* Project / photo cards */
.pcard {
  background: var(--white); border: 1px solid var(--line);
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color .15s ease, transform .15s ease;
}
.pcard:hover { border-color: var(--steel); }

.pcard__body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 6px; }
.tag {
  font-family: var(--f-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .09em; font-size: .8rem; color: var(--safety);
}
.pcard h3 { font-size: 1.24rem; }
.pcard__meta { display: flex; align-items: center; gap: 8px; color: var(--steel); font-size: .92rem; }
.pcard__scope { color: var(--steel); font-size: .98rem; margin: 0; }

/* ---- 13. Disciplines band -------------------------------- */
.disciplines {
  display: grid; grid-template-columns: repeat(5, 1fr);
  border: 1px solid var(--line-dark);
}
.disc {
  padding: 32px 22px; display: flex; flex-direction: column; gap: 14px;
  border-right: 1px solid var(--line-dark);
}
.disc:last-child { border-right: 0; }
.disc__icon { color: var(--safety); }
.disc h3 { color: #fff; font-size: 1.12rem; letter-spacing: .03em; }
.disc p { color: var(--on-dark-soft); font-size: .92rem; margin: 0; }

/* ---- 14. Featured / supply teaser split ------------------ */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 0; border: 1px solid var(--line); }
.split__media { min-width: 0; }
.split__media .media { height: 100%; aspect-ratio: auto; }
.split__body { background: var(--white); padding: 56px; display: flex; flex-direction: column; justify-content: center; }
.split--reverse .split__media { order: 2; }

/* Checklist */
.checklist { display: grid; gap: 12px; margin: 8px 0 0; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; color: var(--ink); }
.checklist .tick { color: var(--safety); margin-top: 3px; }
.band .checklist li { color: var(--on-dark); }

/* ---- 15. Clients strip ----------------------------------- */
.clients { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.client {
  border: 1px solid var(--line); background: var(--white);
  aspect-ratio: 3 / 2; display: grid; place-items: center; gap: 6px;
  color: var(--steel); text-align: center; padding: 12px;
  filter: grayscale(1); opacity: .75;
}
.client .icon { color: var(--steel); }
.client span {
  font-family: var(--f-display); text-transform: uppercase;
  letter-spacing: .08em; font-size: .8rem;
}

/* ---- 16. CTA band ---------------------------------------- */
.cta-band { border-top: 3px solid var(--safety); }
.cta-band .container { display: grid; grid-template-columns: 1.4fr 1fr; gap: 40px; align-items: center; }
.cta-band h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
.cta-band .cta-actions { display: flex; flex-direction: column; gap: 12px; }

/* ---- 17. Footer ------------------------------------------ */
.site-footer { background: var(--graphite); color: var(--on-dark-soft); }
.footer-grid {
  display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.4fr; gap: 40px;
  padding-block: 64px;
}
.footer-col h4 {
  color: #fff; font-size: 1.05rem; letter-spacing: .06em; margin-bottom: 18px;
}
.footer-col p { color: var(--on-dark-soft); font-size: .95rem; }
.footer-col a { color: var(--on-dark-soft); }
.footer-col a:hover { color: #fff; }
.footer-links { display: grid; gap: 10px; }
.footer-links a { font-size: .95rem; }
.footer-contact { display: grid; gap: 12px; }
.footer-contact div { display: flex; gap: 10px; align-items: flex-start; font-size: .95rem; }
.footer-contact .icon { color: var(--safety); margin-top: 2px; }
.footer-brand .brand__mark { color: #fff; }
.footer-brand .brand__sub { color: var(--on-dark-soft); }
.footer-download {
  display: inline-flex; align-items: center; gap: 10px; margin-top: 18px;
  border: 1px solid var(--line-dark); padding: 10px 14px; border-radius: 2px;
  font-family: var(--f-display); text-transform: uppercase; letter-spacing: .05em;
  font-size: .9rem; color: #fff;
}
.footer-download:hover { border-color: var(--safety); }
.footer-download .icon { color: var(--safety); }

/* (footer title-block strip removed) */

/* ---- 18. Page header band (interior pages) --------------- */
.page-header {
  position: relative; color: #fff; overflow: hidden;
  background: var(--graphite);
  display: flex; align-items: flex-end;
  min-height: 42vh;
}
.page-header__bg { position: absolute; inset: 0; }
.page-header__bg img { width: 100%; height: 100%; object-fit: cover; filter: saturate(.85) contrast(1.03); }
.page-header__bg::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(27,31,35,.88), rgba(27,31,35,.6));
}
.page-header__inner { position: relative; z-index: 2; padding-block: 56px; }
.page-header h1 { color: #fff; font-size: clamp(2.2rem, 5vw, 3.4rem); margin-bottom: 8px; }
.page-header .eyebrow { background: transparent; border-color: var(--line-dark); }
.page-header .eyebrow__code { border-right-color: var(--line-dark); }
.page-header .eyebrow__label { color: rgba(255,255,255,.82); }
.breadcrumb {
  font-family: var(--f-display); text-transform: uppercase; letter-spacing: .06em;
  font-size: .82rem; color: rgba(255,255,255,.7); margin-top: 14px;
}
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { color: var(--safety); margin: 0 8px; }

/* ---- 19. About specifics --------------------------------- */
.mv-card {
  border: 1px solid var(--line); background: var(--white); padding: 34px 30px;
  border-top: 3px solid var(--safety);
}
.mv-card h3 { font-size: 1.5rem; margin-bottom: 12px; }
.mv-card p { color: var(--steel); margin-bottom: 0; }

.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
.step { position: relative; padding-top: 22px; border-top: 3px solid var(--line); }
.step__no {
  font-family: var(--f-display); font-weight: 700; font-size: 2.4rem; line-height: 1;
  color: var(--safety); font-variant-numeric: tabular-nums;
}
.step h3 { font-size: 1.15rem; margin: 10px 0 8px; }
.step p { color: var(--steel); font-size: .96rem; margin: 0; }

.cert-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.cert {
  border: 1px dashed var(--line); background: var(--white); padding: 22px 20px;
  display: flex; gap: 14px; align-items: center; color: var(--steel);
}
.cert .icon { color: var(--steel); }
.cert strong { display: block; color: var(--ink); font-family: var(--f-display); letter-spacing: .03em; font-size: 1.05rem; }
.cert span { font-size: .84rem; }

/* ---- 20. Alternating service pillars --------------------- */
.pillar { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.pillar + .pillar { margin-top: 72px; }
.pillar--reverse .pillar__media { order: 2; }
.pillar__media .media { border: 1px solid var(--line); }
.pillar h2 { font-size: 1.9rem; margin-bottom: 8px; }
.pillar__no {
  font-family: var(--f-display); font-weight: 700; color: var(--safety);
  font-size: .9rem; letter-spacing: .1em; margin-bottom: 6px;
}

/* ---- 21. Supply / product grid --------------------------- */
.prod-card { background: var(--white); border: 1px solid var(--line); overflow: hidden; display: flex; flex-direction: column; }
.prod-card:hover { border-color: var(--steel); }
.prod-card__body { padding: 22px; }
.prod-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.prod-card ul { display: grid; gap: 6px; }
.prod-card li { display: flex; gap: 8px; color: var(--steel); font-size: .94rem; }
.prod-card li .dot { color: var(--safety); }

/* Brand placeholder strip */
.brand-row { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.brand-slot {
  border: 1px dashed var(--line); background: var(--white);
  aspect-ratio: 5 / 2; display: grid; place-items: center; text-align: center;
  color: var(--steel); font-family: var(--f-display); text-transform: uppercase;
  letter-spacing: .06em; font-size: .78rem; padding: 8px;
}

/* ---- 22. Projects filter --------------------------------- */
.filters { display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 36px; }
.filter-btn {
  font-family: var(--f-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .05em; font-size: .92rem;
  padding: 9px 18px; border: 1px solid var(--line); background: var(--white);
  color: var(--steel); cursor: pointer; border-radius: 2px;
  transition: all .15s ease;
}
.filter-btn:hover { border-color: var(--steel); color: var(--ink); }
.filter-btn[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.is-hidden { display: none !important; }

/* ---- 23. Contact ----------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 48px; align-items: start; }
.spec { border: 1px solid var(--line); background: var(--white); }
.spec__row {
  display: grid; grid-template-columns: 150px 1fr; align-items: center;
  border-bottom: 1px solid var(--line);
}
.spec__row:last-child { border-bottom: 0; }
.spec__k {
  padding: 20px; background: var(--paper); height: 100%; display: flex; align-items: center; gap: 12px;
  font-family: var(--f-display); text-transform: uppercase; letter-spacing: .06em;
  font-size: .92rem; color: var(--steel); border-right: 1px solid var(--line);
}
.spec__k .icon { color: var(--safety); }
.spec__v { padding: 18px 20px; }
.spec__v a { font-weight: 500; }
.spec__v a:hover { color: var(--safety); }

.form { border: 1px solid var(--line); background: var(--white); padding: 36px; }
.field { margin-bottom: 18px; }
.field label {
  display: block; font-family: var(--f-display); text-transform: uppercase;
  letter-spacing: .05em; font-size: .85rem; color: var(--steel); margin-bottom: 7px;
}
.field label .req { color: var(--safety); }
.field input, .field textarea {
  width: 100%; font-family: var(--f-body); font-size: 1rem; color: var(--ink);
  padding: 13px 14px; border: 1px solid var(--line); border-radius: 2px; background: var(--white);
  transition: border-color .15s ease;
}
.field input:focus, .field textarea:focus { border-color: var(--safety); outline: none; }
.field textarea { min-height: 130px; resize: vertical; }
.form__note { font-size: .9rem; color: var(--steel); margin: 14px 0 0; }

.map-wrap { border: 1px solid var(--line); }
.map-wrap iframe { display: block; width: 100%; height: 420px; border: 0; filter: grayscale(.3) contrast(1.05); }

/* ---- 24. Fade-up reveal (JS-gated so no-JS shows all) ----- */
/* reveal animation removed — content is static */

/* ---- 25. Utilities --------------------------------------- */
.mt-0 { margin-top: 0; }
.mb-0 { margin-bottom: 0; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.stack-lg { display: grid; gap: 20px; }

/* ============================================================
   26. Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .disciplines { grid-template-columns: repeat(2, 1fr); }
  .disc { border-right: 1px solid var(--line-dark); }
  .disc:nth-child(2n) { border-right: 0; }
  .disc { border-bottom: 1px solid var(--line-dark); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .cert-row { grid-template-columns: repeat(2, 1fr); }
  .brand-row { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 900px) {
  .intro-grid { grid-template-columns: 1fr; gap: 40px; }
  .cta-band .container { grid-template-columns: 1fr; gap: 28px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  :root { --sp-section: 56px; }
  .grid--3 { grid-template-columns: 1fr; }
  .grid--2 { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .split--reverse .split__media { order: 0; }
  .split__body { padding: 40px 28px; }
  .split__media .media { aspect-ratio: 16 / 9; height: auto; }
  .pillar { grid-template-columns: 1fr; gap: 28px; }
  .pillar--reverse .pillar__media { order: 0; }
  .pillar + .pillar { margin-top: 48px; }
  .clients { grid-template-columns: repeat(2, 1fr); }
  .brand-row { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .hero { min-height: 76vh; }
}

@media (max-width: 560px) {
  .grid--4 { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat__num { justify-content: flex-start; }
  .disciplines { grid-template-columns: 1fr; }
  .disc { border-right: 0; }
  .steps { grid-template-columns: 1fr; }
  .cert-row { grid-template-columns: 1fr; }
  .brand-row { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .spec__row { grid-template-columns: 1fr; }
  .spec__k { border-right: 0; border-bottom: 1px solid var(--line); }
  .brand__sub { font-size: .5rem; }
}

/* ---- 27. Cambodian coverage + Khmer script --------------- */
.km { font-family: "Noto Sans Khmer", "Open Sans", system-ui, sans-serif; }
.eyebrow .km { letter-spacing: .02em; }
.hero__km { color: rgba(255,255,255,.82); font-size: 1.1rem; line-height: 1.5; margin: -8px 0 26px; max-width: 46ch; }

.coverage { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.place {
  border: 1px solid var(--line); background: var(--white);
  padding: 24px 16px; text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 4px;
}
.place .icon { color: var(--safety); margin-bottom: 6px; }
.place__en {
  font-family: var(--f-display); font-weight: 600; text-transform: uppercase;
  letter-spacing: .04em; font-size: 1.02rem; color: var(--ink);
}
.place__km { color: var(--steel); font-size: 1.05rem; line-height: 1.4; }

@media (max-width: 900px) { .coverage { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 460px) { .coverage { grid-template-columns: 1fr 1fr; } }