@import url("tokens.css");

/* ==========================================================================
   1. Base
   ========================================================================== */

*,
*::before,
*::after { box-sizing: border-box; }

html {
  background: var(--color-paper);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 1rem);
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-base);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: var(--fw-black);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight);
  text-wrap: balance;
}

p { margin: 0 0 var(--space-5); max-width: var(--measure); }
p:last-child { margin-bottom: 0; }

a { color: inherit; }

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

ul, ol { margin: 0; padding: 0; list-style: none; }

button { font: inherit; color: inherit; }

:focus-visible {
  outline: 2px solid var(--color-steel);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -999px;
  z-index: 999;
  padding: var(--space-3) var(--space-5);
  background: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  text-decoration: none;
}
.skip-link:focus { top: var(--space-4); }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ==========================================================================
   2. Layout primitives
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid {
  display: grid;
  grid-template-columns: repeat(var(--grid-columns), minmax(0, 1fr));
  gap: var(--grid-gap);
}

.section { padding-block: var(--section-pad); }
.section--mist { background: var(--color-mist); }
.section--ink { background: var(--color-ink); color: var(--color-paper); }
.section--ink p { color: var(--color-muted-dark); }

.section-head { margin-bottom: clamp(2.5rem, 5vw, 4.5rem); }

.section-index {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-5);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  color: var(--color-steel);
}
.section-index::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--color-line);
}
.section--ink .section-index { color: var(--color-steel-pale); }
.section--ink .section-index::after { background: var(--color-line-dark); }

.section-head h2 { font-size: var(--fs-h2); }

.section-title { font-size: var(--fs-h2); margin-bottom: var(--space-6); }

.lead {
  font-size: var(--fs-lead);
  line-height: 1.5;
  color: var(--color-muted);
  max-width: 56ch;
}
.section--ink .lead { color: var(--color-muted-dark); }

/* Ruler tick rule, the recurring device lifted from the logo ------------- */
.rule-ticks {
  height: 13px;
  border-top: 1px solid var(--color-ink);
  background-image:
    repeating-linear-gradient(to right, var(--color-ink) 0 1px, transparent 1px 9px),
    repeating-linear-gradient(to right, var(--color-ink) 0 1px, transparent 1px 45px);
  background-size: 100% 5px, 100% 11px;
  background-repeat: no-repeat;
  background-position: top left, top left;
}
.rule-ticks--light {
  border-top-color: var(--color-paper);
  background-image:
    repeating-linear-gradient(to right, var(--color-paper) 0 1px, transparent 1px 9px),
    repeating-linear-gradient(to right, var(--color-paper) 0 1px, transparent 1px 45px);
}

/* Data list, used for specifications and credentials --------------------- */
.data-list { font-family: var(--font-mono); font-size: var(--fs-data); line-height: var(--lh-data); }
.data-list > div {
  display: grid;
  grid-template-columns: minmax(8.5rem, 34%) 1fr;
  gap: var(--space-4);
  padding-block: var(--space-3);
  border-bottom: var(--border-hair);
}
.data-list dt { color: var(--color-muted); }
.data-list dd { margin: 0; }
.section--ink .data-list > div { border-bottom: var(--border-hair-dark); }
.section--ink .data-list dt { color: var(--color-muted-dark); }

/* ==========================================================================
   3. Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.95rem 1.8rem;
  border: 2px solid var(--color-ink);
  background: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out),
              border-color var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.btn:hover { background: var(--color-steel); border-color: var(--color-steel); }

.btn--ghost { background: transparent; color: var(--color-ink); }
.btn--ghost:hover { background: var(--color-ink); color: var(--color-paper); }

.btn--light { background: var(--color-paper); border-color: var(--color-paper); color: var(--color-ink); }
.btn--light:hover { background: var(--color-steel-pale); border-color: var(--color-steel-pale); color: var(--color-ink); }

.btn--small { padding: 0.7rem 1.25rem; font-size: var(--fs-micro); }

.btn--whatsapp { background: var(--color-steel); border-color: var(--color-steel); color: var(--color-paper); }
.btn--whatsapp:hover { background: var(--color-steel-deep); border-color: var(--color-steel-deep); }

/* ==========================================================================
   4. Header and navigation
   ========================================================================== */

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: var(--z-header);
  height: var(--header-height);
  background: var(--color-paper);
  border-bottom: var(--border-hair);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
  height: 100%;
}

.site-logo { display: flex; align-items: center; flex-shrink: 0; }
.site-logo img { height: 34px; width: auto; }

.site-nav__list { display: flex; align-items: center; gap: clamp(1rem, 2vw, 2rem); }

.site-nav__link {
  position: relative;
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  text-decoration: none;
  color: var(--color-muted);
  padding-block: 0.4rem;
  transition: color var(--dur-fast) var(--ease-out);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%; height: 2px;
  background: var(--color-steel);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-base) var(--ease-out);
}
.site-nav__link:hover,
.site-nav__link.is-active { color: var(--color-ink); }
.site-nav__link:hover::after,
.site-nav__link.is-active::after { transform: scaleX(1); }

.site-header__actions { display: flex; align-items: center; gap: var(--space-4); }

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  padding: 0;
  border: var(--border-hair);
  background: transparent;
  cursor: pointer;
}
.nav-toggle__bars { position: relative; width: 20px; height: 12px; }
.nav-toggle__bars span {
  position: absolute;
  left: 0;
  width: 100%; height: 2px;
  background: var(--color-ink);
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast) linear;
}
.nav-toggle__bars span:nth-child(1) { top: 0; }
.nav-toggle__bars span:nth-child(2) { top: 5px; }
.nav-toggle__bars span:nth-child(3) { top: 10px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

@media (max-width: 1023px) {
  .nav-toggle { display: inline-flex; }
  .site-header__cta { display: none; }

  .site-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    overscroll-behavior: contain;
    z-index: var(--z-nav-panel);
    background: var(--color-paper);
    border-top: var(--border-hair);
    padding: var(--space-8) var(--gutter) var(--space-12);
    overflow-y: auto;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--dur-base) var(--ease-out),
                transform var(--dur-base) var(--ease-out),
                visibility var(--dur-base) linear;
  }
  .site-nav.is-open { transform: translateY(0); opacity: 1; visibility: visible; }

  .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav__list li { border-bottom: var(--border-hair); }
  .site-nav__link {
    display: block;
    padding-block: var(--space-4);
    font-family: var(--font-display);
    font-size: var(--fs-h4);
    font-weight: var(--fw-bold);
    color: var(--color-ink);
  }
  .site-nav__link::after { display: none; }
  .site-nav__cta { margin-top: var(--space-8); }
  .site-nav__cta .btn { width: 100%; }
}

@media (min-width: 1024px) {
  .site-nav__cta { display: none; }
}

body.is-scroll-locked { overflow: hidden; }

/* ==========================================================================
   4b. Brand intro overlay
   ========================================================================== */

.intro {
  position: fixed;
  inset: 0;
  z-index: 300;
  display: grid;
  place-items: center;
  background: var(--color-paper);
  transition: opacity 420ms var(--ease-out), visibility 420ms linear;
}
.intro.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
.intro__video { width: min(560px, 76vw); height: auto; }
.intro__skip {
  position: absolute;
  right: clamp(1rem, 4vw, 2.5rem);
  bottom: calc(clamp(1rem, 4vw, 2.5rem) + env(safe-area-inset-bottom, 0px));
  padding: 0.55rem 1.1rem;
  border: var(--border-hair);
  background: transparent;
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-muted);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out), color var(--dur-fast) var(--ease-out);
}
.intro__skip:hover { border-color: var(--color-ink); color: var(--color-ink); }

body.is-intro { overflow: hidden; }
body.is-intro .hero__title,
body.is-intro .hero__lead,
body.is-intro .hero__actions,
body.is-intro .hero__media,
body.is-intro .hero__strip { animation-play-state: paused; }

/* ==========================================================================
   5. Hero
   ========================================================================== */

.hero {
  padding-top: calc(var(--header-height) + clamp(3rem, 7vw, 6rem));
  padding-bottom: 0;
  overflow: hidden;
}

.hero__inner { align-items: end; }

.hero__content { grid-column: 1 / span 7; padding-bottom: clamp(3rem, 6vw, 5.5rem); }

.hero__title {
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-display);
  text-transform: uppercase;
  margin-bottom: var(--space-6);
}
.hero__title .hero__rule {
  display: block;
  width: 4.5rem;
  height: 6px;
  margin-bottom: var(--space-6);
  background: var(--color-steel);
}

.hero__lead { font-size: var(--fs-lead); line-height: 1.5; color: var(--color-muted); max-width: 52ch; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-top: var(--space-8);
}

.hero__media {
  grid-column: 8 / -1;
  position: relative;
  margin-right: calc(-1 * var(--gutter));
}
.hero__media img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}
.hero__media::before {
  content: "";
  position: absolute;
  inset: auto auto -14px -14px;
  width: 42%;
  height: 120px;
  border-left: 3px solid var(--color-steel);
  border-bottom: 3px solid var(--color-steel);
  pointer-events: none;
}

.hero__strip {
  margin-top: var(--space-10);
  border-top: var(--border-hair);
}
.hero__facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  font-family: var(--font-mono);
  font-size: var(--fs-data);
}
.hero__facts li {
  padding: var(--space-5) var(--space-4) var(--space-5) 0;
  border-right: var(--border-hair);
}
.hero__facts li:last-child { border-right: 0; }
.hero__facts li:not(:first-child) { padding-left: var(--space-5); }
.hero__facts b { display: block; font-weight: var(--fw-medium); color: var(--color-ink); }
.hero__facts span { color: var(--color-muted); }

@media (min-width: 1024px) {
  .hero__anim {
    position: absolute;
    right: var(--space-4);
    bottom: var(--space-4);
    width: 132px;
    mix-blend-mode: screen;
  }
}

/* Single orchestrated page load sequence, hero only */
@media (prefers-reduced-motion: no-preference) {
  .hero__title,
  .hero__lead,
  .hero__actions,
  .hero__media,
  .hero__strip {
    opacity: 0;
    animation: hero-enter var(--dur-slow) var(--ease-out) forwards;
  }
  .hero__title { animation-delay: 60ms; }
  .hero__lead { animation-delay: 160ms; }
  .hero__actions { animation-delay: 240ms; }
  .hero__media { animation-delay: 120ms; }
  .hero__strip { animation-delay: 340ms; }
}

@keyframes hero-enter {
  from { opacity: 0; transform: translateY(18px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ==========================================================================
   6. About
   ========================================================================== */

.about__intro { grid-column: 1 / span 6; }
.about__aside { grid-column: 8 / -1; }

.about__gallery {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--grid-gap);
  margin-top: clamp(3rem, 6vw, 5rem);
}
.about__gallery figure { margin: 0; }
.about__gallery img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; }
.about__gallery figcaption {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-muted);
}

.founder {
  padding: var(--space-8);
  background: var(--color-steel-wash);
  border-left: 3px solid var(--color-steel);
}
.founder h3 { font-size: var(--fs-h4); margin-bottom: var(--space-2); }
.founder__role {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-steel);
  margin-bottom: var(--space-4);
}
.founder p { font-size: var(--fs-small); color: var(--color-muted); }

/* ==========================================================================
   7. Expertise
   ========================================================================== */

.expertise__grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: var(--border-hair);
  border-left: var(--border-hair);
}
.expertise__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-8) var(--space-6);
  border-right: var(--border-hair);
  border-bottom: var(--border-hair);
  background: var(--color-paper);
  transition: background var(--dur-fast) var(--ease-out);
}
.expertise__item:hover { background: var(--color-steel-wash); }
.expertise__item svg { width: 30px; height: 30px; stroke: var(--color-steel); fill: none; stroke-width: 1.4; }
.expertise__item h3 { font-family: var(--font-body); font-size: var(--fs-body); font-weight: var(--fw-semibold); letter-spacing: 0; }
.expertise__item p { font-size: var(--fs-small); color: var(--color-muted); }

/* ==========================================================================
   8. Products
   ========================================================================== */

.products__list { border-top: 1px solid var(--color-ink); }
.product { border-bottom: var(--border-hair); }

.product__trigger {
  display: grid;
  grid-template-columns: 5.5rem minmax(0, 1fr) minmax(0, 1.1fr) 2.5rem;
  align-items: center;
  gap: var(--space-6);
  width: 100%;
  padding: var(--space-6) 0;
  border: 0;
  background: transparent;
  text-align: left;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out);
}
.product__trigger:hover { color: var(--color-steel); }

.product__ref {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-steel);
}
.product__name {
  font-family: var(--font-display);
  font-size: var(--fs-h4);
  font-weight: var(--fw-bold);
  letter-spacing: var(--tracking-tight);
}
.product__summary { font-size: var(--fs-small); color: var(--color-muted); }

.product__sign { position: relative; justify-self: end; width: 18px; height: 18px; }
.product__sign::before,
.product__sign::after {
  content: "";
  position: absolute;
  background: currentColor;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast) linear;
}
.product__sign::before { top: 8px; left: 0; width: 18px; height: 2px; }
.product__sign::after { top: 0; left: 8px; width: 2px; height: 18px; }
.product__trigger[aria-expanded="true"] .product__sign::after { transform: rotate(90deg); opacity: 0; }
.product__trigger[aria-expanded="true"] { color: var(--color-steel); }

.product__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-base) var(--ease-in-out);
}
.product__panel.is-open { grid-template-rows: 1fr; }
.product__panel > div {
  overflow: hidden;
  visibility: hidden;
  transition: visibility var(--dur-base) linear;
}
.product__panel.is-open > div { visibility: visible; }

.product__detail {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  padding: var(--space-2) 0 var(--space-10);
}

.product__tags { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-5); }
.product__tags li {
  padding: 0.35rem 0.7rem;
  border: var(--border-hair);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--color-muted);
}
.product__aside h4 { font-family: var(--font-body); font-size: var(--fs-small); font-weight: var(--fw-semibold); margin-bottom: var(--space-3); }
.product__aside .btn { margin-top: var(--space-6); }

.products__note {
  margin-top: var(--space-8);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-muted);
}

/* ==========================================================================
   9. Manufacturing
   ========================================================================== */

.mfg__intro { grid-column: 1 / span 6; }
.mfg__facts { grid-column: 8 / -1; }

.mfg__rule { margin-top: var(--space-16); }
.mfg__capabilities { margin-top: var(--space-8); }
.mfg__capabilities li {
  display: flex;
  gap: var(--space-4);
  padding-block: var(--space-4);
  border-top: var(--border-hair-dark);
  font-size: var(--fs-small);
  color: var(--color-muted-dark);
}
.mfg__capabilities strong {
  flex: 0 0 auto;
  min-width: 2.25rem;
  font-family: var(--font-mono);
  font-weight: var(--fw-medium);
  color: var(--color-steel-pale);
}

.mfg__media {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--grid-gap);
  margin-top: clamp(3rem, 6vw, 5rem);
}
.mfg__media img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; filter: grayscale(0.15); }

/* ==========================================================================
   10. Engineering
   ========================================================================== */

.eng__media { grid-column: 1 / span 7; }
.eng__media img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; }
.eng__video {
  width: 100%;
  aspect-ratio: 848 / 478;
  object-fit: cover;
  background: var(--color-ink);
}
.eng__caption {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-muted);
}
.eng__body { grid-column: 9 / -1; }
.eng__body h2 { font-size: var(--fs-h2); margin-bottom: var(--space-6); }

.eng__points { margin-top: var(--space-8); }
.eng__points li { padding-block: var(--space-5); border-top: var(--border-hair); }
.eng__points h3 { font-family: var(--font-body); font-size: var(--fs-body); font-weight: var(--fw-semibold); letter-spacing: 0; margin-bottom: var(--space-2); }
.eng__points p { font-size: var(--fs-small); color: var(--color-muted); }

/* ==========================================================================
   11. Process, a genuine sequence so the numbering carries meaning
   ========================================================================== */

.process__steps {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0;
  margin-top: var(--space-8);
  border-top: 1px solid var(--color-ink);
}
.process__step { padding: var(--space-8) var(--space-5) var(--space-8) 0; border-right: var(--border-hair); }
.process__step:last-child { border-right: 0; }
.process__step:not(:first-child) { padding-left: var(--space-5); }
.process__num {
  display: block;
  margin-bottom: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-steel);
}
.process__step h3 { font-size: var(--fs-h4); text-transform: uppercase; margin-bottom: var(--space-3); }
.process__step p { font-size: var(--fs-small); color: var(--color-muted); }

/* ==========================================================================
   12. Gallery and lightbox
   ========================================================================== */

.gallery {
  columns: 3;
  column-gap: var(--space-3);
}
.gallery__item { break-inside: avoid; margin-bottom: var(--space-3); }
.gallery__btn {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: none;
  cursor: zoom-in;
  overflow: hidden;
}
.gallery__btn img {
  width: 100%;
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-fast) linear;
}
.gallery__btn:hover img { transform: scale(1.03); opacity: 0.92; }

.gallery__item.is-hidden { display: none; }

.gallery__actions { margin-top: var(--space-8); }
.gallery__more[aria-expanded="true"] { border-color: var(--color-line); }

.lightbox {
  position: fixed;
  inset: 0;
  z-index: var(--z-lightbox);
  display: grid;
  place-items: center;
  padding: clamp(1rem, 4vw, 3rem);
  background: rgba(0, 0, 0, 0.94);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-base) var(--ease-out), visibility var(--dur-base) linear;
}
.lightbox.is-open { opacity: 1; visibility: visible; }
.lightbox__figure { margin: 0; max-width: min(1200px, 100%); }
.lightbox__figure img { max-height: 78vh; width: auto; margin-inline: auto; }
.lightbox__caption {
  margin-top: var(--space-4);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-muted-dark);
  text-align: center;
}
.lightbox__btn {
  position: absolute;
  display: grid;
  place-items: center;
  width: 52px; height: 52px;
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: transparent;
  color: var(--color-paper);
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-out);
}
.lightbox__btn:hover { background: rgba(255, 255, 255, 0.14); }
.lightbox__btn svg { width: 20px; height: 20px; stroke: currentColor; fill: none; stroke-width: 1.6; }
.lightbox__close { top: clamp(1rem, 3vw, 2rem); right: clamp(1rem, 3vw, 2rem); }
.lightbox__prev { left: clamp(0.5rem, 3vw, 2rem); top: 50%; transform: translateY(-50%); }
.lightbox__next { right: clamp(0.5rem, 3vw, 2rem); top: 50%; transform: translateY(-50%); }

/* ==========================================================================
   13. Markets and vision
   ========================================================================== */

.markets__body { grid-column: 1 / span 5; }
.markets__regions { grid-column: 7 / -1; }
.markets__creds { margin-top: var(--space-8); }

.markets__regions li {
  display: grid;
  grid-template-columns: 3.5rem 1fr;
  gap: var(--space-5);
  align-items: baseline;
  padding-block: var(--space-5);
  border-top: var(--border-hair);
}
.markets__regions li:last-child { border-bottom: var(--border-hair); }
.markets__regions span {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-steel);
}
.markets__regions h3 { font-size: var(--fs-h4); margin-bottom: var(--space-1); }
.markets__regions p { font-size: var(--fs-small); color: var(--color-muted); }

.vision {
  padding-block: clamp(3.5rem, 7vw, 6rem);
  border-top: 1px solid var(--color-ink);
  border-bottom: 1px solid var(--color-ink);
}
.vision p {
  max-width: 24ch;
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: var(--fw-black);
  line-height: var(--lh-snug);
  letter-spacing: var(--tracking-tight);
}
.vision span { color: var(--color-steel); }

/* ==========================================================================
   14. Contact
   ========================================================================== */

.contact__form-wrap { grid-column: 1 / span 7; }
.contact__details { grid-column: 9 / -1; }

.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-5); }
.form__field { display: flex; flex-direction: column; gap: var(--space-2); margin-bottom: var(--space-5); }
.form__field label {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-muted);
}
.form__field label .req { color: var(--color-steel); }
.form__field input,
.form__field select,
.form__field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: var(--border-hair);
  border-radius: var(--radius-none);
  background: var(--color-paper);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  color: var(--color-ink);
  transition: border-color var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.form__field textarea { resize: vertical; min-height: 128px; }
.form__field input:focus,
.form__field select:focus,
.form__field textarea:focus {
  outline: none;
  border-color: var(--color-steel);
  box-shadow: inset 0 0 0 1px var(--color-steel);
}
.form__field input[aria-invalid="true"],
.form__field textarea[aria-invalid="true"] { border-color: #b3261e; }
.form__error { font-family: var(--font-mono); font-size: var(--fs-micro); color: #b3261e; }
.form__note { margin-top: var(--space-4); font-size: var(--fs-small); color: var(--color-muted); }

.contact__block { padding-block: var(--space-6); border-top: var(--border-hair); }
.contact__block:first-of-type { border-top: 1px solid var(--color-ink); }
.contact__block h3 { font-family: var(--font-body); font-size: var(--fs-small); font-weight: var(--fw-semibold); letter-spacing: 0; margin-bottom: var(--space-2); }
.contact__block p,
.contact__block a { font-size: var(--fs-small); color: var(--color-muted); text-decoration: none; }
.contact__block a:hover { color: var(--color-steel); text-decoration: underline; }

.maps {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--grid-gap);
  margin-top: clamp(3rem, 6vw, 4.5rem);
}
.maps figure { margin: 0; }
.maps iframe { width: 100%; aspect-ratio: 16 / 10; border: var(--border-hair); }
.maps figcaption {
  margin-top: var(--space-3);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  color: var(--color-muted);
}

/* Floating actions: back to top, then WhatsApp */
.floating-actions {
  position: fixed;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(1rem, 3vw, 2rem);
  z-index: 90;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-3);
}

.to-top {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--color-ink);
  background: var(--color-paper);
  color: var(--color-ink);
  cursor: pointer;
  opacity: 0;
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity var(--dur-base) var(--ease-out),
              transform var(--dur-base) var(--ease-out),
              background var(--dur-fast) var(--ease-out),
              color var(--dur-fast) var(--ease-out);
}
.to-top.is-visible { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--color-ink); color: var(--color-paper); }
.to-top svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.8; }

.wa-float {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  padding: 0.85rem 1.15rem;
  background: var(--color-ink);
  color: var(--color-paper);
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  text-decoration: none;
  transition: background var(--dur-fast) var(--ease-out);
}
.wa-float:hover { background: var(--color-steel); }
.wa-float svg { width: 18px; height: 18px; fill: currentColor; }

/* ==========================================================================
   15. Footer
   ========================================================================== */

.site-footer { background: var(--color-ink); color: var(--color-paper); padding-block: var(--space-16) var(--space-8); }
.site-footer__grid { align-items: start; }
.site-footer__brand { grid-column: 1 / span 3; }
.site-footer__brand img { height: 42px; width: auto; margin-bottom: var(--space-5); }
.site-footer__brand p { font-size: var(--fs-small); color: var(--color-muted-dark); max-width: 34ch; }
.site-footer__col { grid-column: span 3; }
.site-footer__col h3 {
  font-family: var(--font-mono);
  font-size: var(--fs-data);
  font-weight: var(--fw-medium);
  letter-spacing: var(--tracking-wide);
  color: var(--color-steel-pale);
  margin-bottom: var(--space-5);
}
.site-footer__col li { margin-bottom: var(--space-3); }
.site-footer__col a,
.site-footer__col p { font-size: var(--fs-small); color: var(--color-muted-dark); text-decoration: none; }
.site-footer__col a:hover { color: var(--color-paper); }

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-4);
  margin-top: var(--space-16);
  padding-top: var(--space-6);
  border-top: var(--border-hair-dark);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  color: var(--color-muted-dark);
}
.site-footer__bottom a { color: inherit; }
.site-footer__bottom a:hover { color: var(--color-paper); }

/* ==========================================================================
   16. Reveal, applied only to the gallery and media grids
   ========================================================================== */

@media (prefers-reduced-motion: no-preference) {
  .reveal { opacity: 0; transform: translateY(14px); transition: opacity var(--dur-slow) var(--ease-out), transform var(--dur-slow) var(--ease-out); }
  .reveal.is-visible { opacity: 1; transform: none; }
}

/* ==========================================================================
   17. Responsive
   ========================================================================== */

@media (max-width: 1023px) {
  :root { --header-height: 68px; }

  .hero__content,
  .hero__media,
  .about__intro,
  .about__aside,
  .mfg__intro,
  .mfg__facts,
  .eng__media,
  .eng__body,
  .markets__body,
  .markets__regions,
  .contact__form-wrap,
  .contact__details,
  .site-footer__brand,
  .site-footer__col { grid-column: 1 / -1; }

  .hero__media { margin-right: calc(-1 * var(--gutter)); margin-left: calc(-1 * var(--gutter)); }
  .hero__media img { aspect-ratio: 16 / 10; }
  .hero__media::before { display: none; }
  .hero__content { padding-bottom: var(--space-10); }

  .about__aside { margin-top: var(--space-10); }
  .eng__body { margin-top: var(--space-10); }
  .markets__regions { margin-top: var(--space-8); }
  .contact__details { margin-top: var(--space-12); }

  .expertise__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process__steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .process__step { border-bottom: var(--border-hair); }
  .gallery { columns: 2; }
  .product__detail { grid-template-columns: 1fr; gap: var(--space-8); }
  .site-footer__col { margin-top: var(--space-10); }
}

@media (max-width: 767px) {
  .hero__facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero__facts li { border-bottom: var(--border-hair); }
  .hero__facts li:nth-child(2n) { border-right: 0; }
  .hero__facts li:nth-child(n + 3) { border-bottom: 0; }

  .about__gallery { grid-template-columns: 1fr; }
  .mfg__media { grid-template-columns: 1fr; }
  .maps { grid-template-columns: 1fr; }

  .product__trigger { grid-template-columns: 3.5rem 1fr 1.75rem; gap: var(--space-4); align-items: start; }
  .product__summary { display: none; }
  .product__sign { margin-top: 0.35rem; }

  .process__steps { grid-template-columns: 1fr; }
  .process__step { padding-inline: 0; border-right: 0; }
  .process__step:not(:first-child) { padding-left: 0; }

  .form__row { grid-template-columns: 1fr; gap: 0; }
  .wa-float span { display: none; }
  .wa-float { padding: 0.9rem; }
}

@media (max-width: 479px) {
  .expertise__grid { grid-template-columns: 1fr; }
  .hero__actions .btn { width: 100%; }
}

@media print {
  .site-header, .floating-actions, .lightbox, .maps iframe { display: none; }
  body { color: #000; }
}

/* ==========================================================================
   18. Safe areas, for notched and gesture bar devices
   ========================================================================== */

@supports (padding: env(safe-area-inset-top)) {
  .site-header {
    height: calc(var(--header-height) + env(safe-area-inset-top, 0px));
    padding-top: env(safe-area-inset-top, 0px);
  }
  html { scroll-padding-top: calc(var(--header-height) + env(safe-area-inset-top, 0px) + 1rem); }
  .hero { padding-top: calc(var(--header-height) + env(safe-area-inset-top, 0px) + clamp(3rem, 7vw, 6rem)); }
  .floating-actions { bottom: calc(clamp(1rem, 3vw, 2rem) + env(safe-area-inset-bottom, 0px)); }
  .gallery__item.is-hidden { display: none; }

.gallery__actions { margin-top: var(--space-8); }
.gallery__more[aria-expanded="true"] { border-color: var(--color-line); }

.lightbox { padding-top: calc(clamp(1rem, 4vw, 3rem) + env(safe-area-inset-top, 0px)); }

  @media (max-width: 1023px) {
    .site-nav {
      top: calc(var(--header-height) + env(safe-area-inset-top, 0px));
      height: calc(100dvh - var(--header-height) - env(safe-area-inset-top, 0px));
      padding-bottom: calc(var(--space-12) + env(safe-area-inset-bottom, 0px));
    }
  }
}