@charset "utf-8";
/* ==========================================================================
   GM Marine Automation & Electrical System — design system
   --------------------------------------------------------------------------
   Marine / industrial register: navy and anthracite grounds, steel greys,
   a single cyan accent. Square corners, hairline rules, no drop shadows.
   Technical labels are set in mono, the way a drawing sheet labels things.

   Everything is driven by the tokens in :root. Change colour or rhythm there
   and the whole site follows.
   ========================================================================== */

:root {
  /* Ground */
  --navy-900:  #061119;
  --navy-800:  #0a1a26;
  --navy-700:  #0f2634;
  --navy-600:  #15364a;
  --navy-500:  #1d485f;

  /* Steel */
  --steel-600: #46565f;
  --steel-500: #64757f;
  --steel-400: #8b9aa4;
  --steel-300: #b4c0c8;
  --steel-200: #d5dde2;
  --steel-100: #e9eef1;

  --paper:     #ffffff;
  --paper-alt: #f4f7f9;
  --ink:       #0c1a23;
  --ink-soft:  #3c4c56;

  /* Accent — one only. Cyan reads as instrumentation, not as decoration. */
  --accent:        #0b7f96;   /* on light grounds: 4.9:1 on white */
  --accent-deep:   #095f70;
  --accent-bright: #33c9dd;   /* on dark grounds only */

  --line:      #dce3e8;
  --line-soft: #eaeff2;
  --line-dark: rgba(255, 255, 255, .13);

  --font: "IBM Plex Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
          "Helvetica Neue", Arial, sans-serif;
  --mono: "Roboto Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --wrap: 1260px;
  --gut: clamp(1.15rem, 4vw, 2.5rem);

  --s1: .4rem;  --s2: .75rem; --s3: 1.15rem; --s4: 1.75rem;
  --s5: 2.5rem; --s6: 3.5rem; --s7: 5rem;    --s8: 7rem;

  --tap: 44px;
}

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

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: clamp(1rem, .96rem + .18vw, 1.075rem);
  font-weight: 400;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-wrap: break-word;
}

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

h1, h2, h3, h4 {
  margin: 0 0 var(--s3);
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -.017em;
  color: var(--ink);
  text-wrap: balance;
}

h1 { font-size: clamp(2.05rem, 1.35rem + 2.9vw, 3.5rem); font-weight: 600; }
h2 { font-size: clamp(1.55rem, 1.15rem + 1.5vw, 2.3rem); }
h3 { font-size: clamp(1.1rem, 1rem + .4vw, 1.3rem); }

p  { margin: 0 0 var(--s3); }
p:last-child { margin-bottom: 0; }

a { color: var(--accent-deep); text-decoration-thickness: 1px; text-underline-offset: .18em; }
a:hover { color: var(--ink); }

ul, ol { margin: 0 0 var(--s3); padding-left: 1.3em; }

hr { border: 0; border-top: 1px solid var(--line); margin: var(--s5) 0; }

::selection { background: var(--navy-800); color: #fff; }

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

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

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--navy-800); color: #fff;
  padding: .8rem 1.2rem; font-weight: 600;
}
.skip-link:focus { left: 0; color: #fff; }

/* --- Typographic utilities ------------------------------------------------ */
.eyebrow {
  margin: 0 0 var(--s2);
  font-family: var(--mono);
  font-size: .715rem;
  font-weight: 500;
  letter-spacing: .17em;
  text-transform: uppercase;
  color: var(--steel-500);
}
.eyebrow--accent { color: var(--accent); }

.link-arrow {
  font-family: var(--mono);
  font-size: .8rem;
  letter-spacing: .09em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--accent-deep);
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
}
.link-arrow:hover { color: var(--ink); }

/* --- Buttons -------------------------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  min-height: var(--tap);
  padding: .72rem 1.5rem;
  border: 1px solid var(--navy-800);
  background: var(--navy-800);
  color: #fff;
  font: inherit; font-weight: 500;
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  transition: background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { background: var(--navy-600); border-color: var(--navy-600); color: #fff; }

.btn--accent { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn--accent:hover { background: var(--accent-deep); border-color: var(--accent-deep); }

.btn--ghost { background: transparent; color: var(--ink); border-color: var(--steel-300); }
.btn--ghost:hover { background: var(--ink); border-color: var(--ink); color: #fff; }

.btn--lg { padding: .9rem 1.9rem; font-size: 1.02rem; }
.btn--full { display: flex; width: 100%; }
.btn + .btn { margin-top: 0; }

/* --- Topbar --------------------------------------------------------------- */
.topbar {
  background: var(--navy-900);
  color: var(--steel-300);
  font-size: .8rem;
  border-bottom: 1px solid rgba(255, 255, 255, .07);
}
.topbar__inner {
  display: flex; flex-wrap: wrap; gap: .4rem var(--s4);
  align-items: center; justify-content: space-between;
  min-height: 40px;
  padding-block: .3rem;
}
.topbar__alert {
  margin: 0;
  display: inline-flex; align-items: center; gap: .55rem;
  font-family: var(--mono);
  font-size: .715rem; letter-spacing: .11em; text-transform: uppercase;
  color: var(--accent-bright);
}
.pulse {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--accent-bright);
  box-shadow: 0 0 0 0 rgba(51, 201, 221, .65);
  animation: pulse 2.6s infinite;
  flex: none;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(51, 201, 221, .55); }
  70%  { box-shadow: 0 0 0 7px rgba(51, 201, 221, 0); }
  100% { box-shadow: 0 0 0 0 rgba(51, 201, 221, 0); }
}
.topbar__links { display: flex; flex-wrap: wrap; gap: var(--s3); align-items: center; }
.topbar__links a { color: var(--steel-300); text-decoration: none; }
.topbar__links a:hover { color: #fff; }
.topbar__lang {
  font-family: var(--mono); font-size: .72rem;
  letter-spacing: .1em; text-transform: uppercase;
  padding: .25rem .6rem;
  border: 1px solid var(--line-dark);
}
.topbar__lang:hover { border-color: var(--accent-bright); color: var(--accent-bright) !important; }

/* --- Header --------------------------------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 90;
  background: var(--navy-800);
  border-bottom: 1px solid rgba(255, 255, 255, .09);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--s4);
  min-height: 76px;
}

.brand {
  display: inline-flex; align-items: center; gap: .7rem;
  color: #fff; text-decoration: none; flex: none;
}
.brand__mark { width: 34px; height: 34px; color: var(--accent-bright); flex: none; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__name {
  font-size: 1.02rem; font-weight: 400; letter-spacing: .015em;
  text-transform: uppercase;
}
.brand__name b { font-weight: 700; }
.brand__tag {
  font-family: var(--mono);
  font-size: .615rem; letter-spacing: .13em; text-transform: uppercase;
  color: var(--steel-400);
}

.nav { display: flex; align-items: center; gap: var(--s4); }
.nav__list {
  display: flex; align-items: center; gap: var(--s4);
  margin: 0; padding: 0; list-style: none;
}
.nav__link {
  display: inline-block;
  padding: .4rem 0;
  color: var(--steel-200);
  font-size: .93rem;
  text-decoration: none;
  border-bottom: 2px solid transparent;
}
.nav__link:hover { color: #fff; border-bottom-color: var(--line-dark); }
.nav__link[aria-current="page"] { color: #fff; border-bottom-color: var(--accent-bright); }
.nav__cta { padding: .6rem 1.15rem; font-size: .9rem; }

.nav-toggle {
  display: none;
  width: var(--tap); height: var(--tap);
  padding: 0; border: 1px solid var(--line-dark);
  background: transparent; cursor: pointer;
}
.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after {
  display: block; width: 20px; height: 1.5px;
  background: #fff; margin-inline: auto;
  transition: transform .2s ease, opacity .2s ease;
}
.nav-toggle__bars { position: relative; }
.nav-toggle__bars::before, .nav-toggle__bars::after { content: ""; position: absolute; left: 0; }
.nav-toggle__bars::before { top: -6px; }
.nav-toggle__bars::after  { top: 6px; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars { background: transparent; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::before { transform: translateY(6px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bars::after  { transform: translateY(-6px) rotate(-45deg); }

/* --- Breadcrumbs ---------------------------------------------------------- */
.crumbs {
  background: var(--paper-alt);
  border-bottom: 1px solid var(--line);
  font-size: .82rem;
}
.crumbs ol {
  display: flex; flex-wrap: wrap; gap: .35rem;
  margin: 0; padding: .7rem 0; list-style: none;
}
.crumbs li + li::before { content: "/"; color: var(--steel-400); margin-right: .35rem; }
.crumbs a { color: var(--steel-600); text-decoration: none; }
.crumbs a:hover { color: var(--accent-deep); text-decoration: underline; }
.crumbs [aria-current] { color: var(--ink); }

/* --- Hero ----------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--navy-800);
  color: #fff;
  padding-block: clamp(2.75rem, 6vw, 5rem) clamp(2rem, 4vw, 3rem);
  overflow: hidden;
}
/* Faint blueprint grid — drawn in CSS so there is no image to load. */
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, .045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, .045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 78% 68% at 68% 34%, #000 25%, transparent 78%);
  pointer-events: none;
}
.hero > * { position: relative; }
.hero__inner {
  display: grid; grid-template-columns: minmax(0, 1.02fr) minmax(0, .98fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero h1 { color: #fff; max-width: 21ch; }
.hero__lead {
  max-width: 52ch;
  font-size: clamp(1.02rem, .97rem + .3vw, 1.18rem);
  color: var(--steel-300);
  margin-bottom: var(--s4);
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--s2); }
.hero .btn--ghost { color: #fff; border-color: var(--line-dark); }
.hero .btn--ghost:hover { background: #fff; color: var(--navy-800); border-color: #fff; }

.hero__figure { min-width: 0; }
.hero__figcap {
  margin-top: var(--s3);
  font-family: var(--mono);
  font-size: .7rem; line-height: 1.6;
  letter-spacing: .05em;
  color: var(--steel-500);
  max-width: 46ch;
}

/* Single-line diagram */
.sld { width: 100%; height: auto; color: var(--steel-400); display: block; }
.sld__bus { stroke: var(--accent-bright); }
.sld__sync { stroke: var(--accent-bright); opacity: .8; }
.sld__lbl {
  fill: var(--steel-500); stroke: none;
  font-family: var(--mono); font-size: 9px;
  letter-spacing: .12em; text-anchor: middle;
}
.sld__lbl--l { text-anchor: start; }
.sld__lbl--accent { fill: var(--accent-bright); }

/* Stats strip */
.stats {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: clamp(2rem, 5vw, 3.5rem);
  border-top: 1px solid var(--line-dark);
}
.stat {
  padding: var(--s4) var(--s3) 0 0;
  border-right: 1px solid var(--line-dark);
}
.stat:last-child { border-right: 0; }
.stat:not(:first-child) { padding-left: var(--s3); }
.stat__v {
  display: block;
  font-size: clamp(1.5rem, 1.1rem + 1.4vw, 2.1rem);
  font-weight: 600; letter-spacing: -.02em; color: #fff;
}
.stat__l {
  display: block; margin-top: .25rem;
  font-size: .8rem; line-height: 1.45; color: var(--steel-400);
}

/* --- Sections ------------------------------------------------------------- */
.section { padding-block: clamp(3rem, 7vw, var(--s8)); }
.section--tight { padding-block: clamp(2rem, 4vw, 3rem); }
.section--alt { background: var(--paper-alt); border-block: 1px solid var(--line); }
.section--faq { background: var(--paper-alt); border-top: 1px solid var(--line); }

.section--dark {
  background: var(--navy-800);
  color: var(--steel-300);
}
.section--dark h2, .section--dark h3 { color: #fff; }
.section--dark .eyebrow { color: var(--accent-bright); }
.section--dark .sec-head__lead { color: var(--steel-400); }

.sec-head { max-width: 62ch; margin-bottom: clamp(2rem, 4vw, var(--s5)); }
.sec-head h2 { position: relative; padding-top: var(--s3); }
.sec-head h2::before {
  content: ""; position: absolute; top: 0; left: 0;
  width: 42px; height: 2px; background: var(--accent);
}
.section--dark .sec-head h2::before { background: var(--accent-bright); }
.sec-head__lead { margin: var(--s3) 0 0; color: var(--ink-soft); font-size: 1.05rem; }

.sec-more { margin-top: var(--s4); }

.split {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr);
  gap: clamp(1.5rem, 4vw, var(--s6));
}
.split .sec-head { margin-bottom: 0; }
.split__r { color: var(--ink-soft); }
.split__r p { font-size: 1.05rem; }

/* --- Grids and cards ------------------------------------------------------ */
.grid { display: grid; gap: 1px; background: var(--line); border: 1px solid var(--line); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

/* The grid gap IS the rule: cards sit flush and share hairlines. */
.card {
  position: relative;
  display: flex; flex-direction: column;
  gap: var(--s2);
  padding: var(--s4);
  background: var(--paper);
  color: inherit; text-decoration: none;
  transition: background .15s ease;
}
.card:hover { background: var(--paper-alt); color: inherit; }
.card:hover .card__title { color: var(--accent-deep); }
.card:hover .card__go { transform: translateX(4px); color: var(--accent); }

.card__idx {
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em;
  color: var(--steel-400);
}
.card__icon { display: block; color: var(--accent); }
.card__icon .icon { width: 44px; height: 44px; }
.card__body { display: block; }
.card__title {
  display: block; margin-bottom: .45rem;
  font-size: 1.12rem; font-weight: 600; line-height: 1.25;
  letter-spacing: -.012em;
  transition: color .15s ease;
}
.card__text { display: block; font-size: .93rem; color: var(--ink-soft); line-height: 1.55; }
.card__go {
  margin-top: .1rem; align-self: flex-start;
  font-size: 1.15rem; line-height: 1; color: var(--steel-400);
  transition: transform .15s ease, color .15s ease;
}
.card--service .card__body { flex: 1; margin-top: var(--s2); }

.card__meta {
  display: flex; gap: var(--s3);
  font-family: var(--mono); font-size: .72rem; letter-spacing: .08em;
  text-transform: uppercase; color: var(--steel-500);
}
.card--article .card__title { font-size: 1.18rem; }

/* Feature blocks (dark band) */
.grid--features { background: var(--line-dark); border-color: var(--line-dark); }
.feature {
  padding: var(--s4);
  background: var(--navy-800);
}
.feature__no {
  display: block; margin-bottom: var(--s3);
  font-family: var(--mono); font-size: .78rem; letter-spacing: .1em;
  color: var(--accent-bright);
}
.feature h3 { margin-bottom: .55rem; font-size: 1.08rem; }
.feature p { font-size: .93rem; color: var(--steel-400); line-height: 1.6; }

.tile { padding: var(--s4); background: var(--paper); }
.tile h3 { margin-bottom: .5rem; font-size: 1.05rem; }
.tile p { font-size: .93rem; color: var(--ink-soft); }

/* --- Process steps -------------------------------------------------------- */
.steps {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--s4);
  margin: 0; padding: 0; list-style: none;
  counter-reset: step;
}
.step { padding-top: var(--s3); border-top: 2px solid var(--navy-800); }
.step__no {
  display: block; margin-bottom: var(--s2);
  font-family: var(--mono); font-size: .78rem; letter-spacing: .1em;
  color: var(--accent);
}
.step__h { margin-bottom: .5rem; font-size: 1.05rem; }
.step p { font-size: .93rem; color: var(--ink-soft); }

/* --- Lists ---------------------------------------------------------------- */
.list { margin: 0; padding: 0; list-style: none; }
.list li {
  position: relative;
  padding: .55rem 0 .55rem 1.5rem;
  border-bottom: 1px solid var(--line-soft);
}
.list li:last-child { border-bottom: 0; }
.list li::before {
  content: ""; position: absolute; left: 0; top: 1.15em;
  width: 8px; height: 1.5px; background: var(--accent);
}
.list--tight li { padding-block: .35rem; font-size: .93rem; }

.list--num { counter-reset: n; }
.list--num li { padding-left: 2.4rem; }
.list--num li::before {
  counter-increment: n; content: counter(n, decimal-leading-zero);
  top: .55rem; width: auto; height: auto; background: none;
  font-family: var(--mono); font-size: .78rem; color: var(--accent);
  letter-spacing: .06em;
}

.list--inline {
  display: flex; flex-wrap: wrap; gap: var(--s2) var(--s4);
  margin-top: var(--s4);
}
.list--inline li { padding: 0; border: 0; }
.list--inline li::before { display: none; }

/* --- Page head ------------------------------------------------------------ */
.page-head {
  padding-block: clamp(2.5rem, 5vw, 4.25rem) clamp(1.75rem, 3vw, 2.5rem);
  border-bottom: 1px solid var(--line);
}
.page-head__lead {
  max-width: 62ch; margin-top: var(--s3);
  font-size: clamp(1.02rem, .98rem + .3vw, 1.16rem);
  color: var(--ink-soft);
}
.page-head--service .page-head__inner {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--s5); align-items: start;
}
.page-head__icon { color: var(--steel-300); }
.page-head__icon .icon { width: 120px; height: 120px; stroke-width: 1.2; }
.page-head--404 { border-bottom: 0; padding-block: clamp(3.5rem, 9vw, 7rem); }
.page-head--article { background: var(--paper-alt); }
.article__meta {
  display: flex; gap: var(--s3); margin-bottom: var(--s3);
  font-family: var(--mono); font-size: .74rem; letter-spacing: .09em;
  text-transform: uppercase; color: var(--steel-500);
}

/* --- Two-column layout (content + aside) ---------------------------------- */
.layout {
  display: grid; grid-template-columns: minmax(0, 1fr) 340px;
  gap: clamp(2rem, 5vw, var(--s6));
  align-items: start;
}
.layout__main { min-width: 0; }

.block + .block { margin-top: clamp(2rem, 4vw, var(--s5)); }
.block h2 {
  padding-bottom: var(--s2);
  margin-bottom: var(--s3);
  border-bottom: 2px solid var(--navy-800);
  font-size: clamp(1.25rem, 1.1rem + .6vw, 1.6rem);
}
.block__h { font-size: clamp(1.25rem, 1.1rem + .6vw, 1.6rem); margin-bottom: var(--s2); }
.block__lead { color: var(--ink-soft); margin-bottom: var(--s4); }

.aside { position: sticky; top: 100px; display: grid; gap: var(--s3); }
.aside__card {
  padding: var(--s4);
  background: var(--navy-800);
  color: var(--steel-300);
  display: grid; gap: var(--s2);
}
.aside__card .btn--ghost { color: #fff; border-color: var(--line-dark); }
.aside__card .btn--ghost:hover { background: #fff; color: var(--navy-800); }
.aside__card p { font-size: .9rem; line-height: 1.6; }
.aside__h {
  margin: 0 0 .3rem;
  font-family: var(--mono); font-size: .74rem; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase;
  color: var(--accent-bright);
}
.aside__note {
  margin-top: .35rem;
  font-family: var(--mono); font-size: .68rem; letter-spacing: .07em;
  text-transform: uppercase; color: var(--steel-500);
}
.aside__card--plain {
  background: var(--paper-alt);
  color: var(--ink-soft);
  border: 1px solid var(--line);
}
.aside__card--plain .aside__h { color: var(--steel-600); }
.aside__card--alert { background: var(--navy-900); border-left: 3px solid var(--accent-bright); }

.aside__list { margin: 0; padding: 0; list-style: none; }
.aside__list li { border-bottom: 1px solid var(--line); }
.aside__list li:last-child { border-bottom: 0; }
.aside__list a {
  display: block; padding: .6rem 0;
  font-size: .92rem; color: var(--ink); text-decoration: none;
}
.aside__list a:hover { color: var(--accent-deep); }
.aside__more { margin-top: var(--s2); }

/* --- Prose (articles) ----------------------------------------------------- */
.prose { max-width: 68ch; }
.prose h2 {
  margin-top: clamp(2rem, 4vw, var(--s5));
  padding-top: var(--s3);
  border-top: 1px solid var(--line);
  font-size: clamp(1.3rem, 1.15rem + .7vw, 1.75rem);
}
.prose h2:first-child { margin-top: 0; border-top: 0; padding-top: 0; }
.prose h3 { margin-top: var(--s4); font-size: 1.15rem; }
.prose p { font-size: 1.06rem; line-height: 1.72; color: var(--ink-soft); }
.prose .list { margin-bottom: var(--s4); }
.prose .list li { color: var(--ink-soft); }

.pull {
  margin: var(--s4) 0;
  padding: var(--s3) var(--s4);
  background: var(--paper-alt);
  border-left: 3px solid var(--accent);
}
.pull p {
  margin: 0; font-size: 1.02rem; font-weight: 500;
  color: var(--ink); line-height: 1.6;
}

/* --- FAQ ------------------------------------------------------------------ */
.faq-wrap { max-width: 68rem; margin-inline: auto; }
.faq__h {
  padding-bottom: var(--s2); margin-bottom: var(--s3);
  border-bottom: 2px solid var(--navy-800);
}
.faq { border-top: 1px solid var(--line); }
.faq__item { border-bottom: 1px solid var(--line); }
.faq__item summary {
  display: flex; align-items: flex-start; gap: var(--s3);
  padding: var(--s3) 0;
  font-weight: 500; font-size: 1.03rem;
  cursor: pointer; list-style: none;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+"; margin-left: auto; flex: none;
  font-family: var(--mono); font-size: 1.3rem; line-height: 1;
  color: var(--accent);
  transition: transform .2s ease;
}
.faq__item[open] summary::after { content: "\2013"; }
.faq__item summary:hover { color: var(--accent-deep); }
.faq__a { padding: 0 0 var(--s3); max-width: 74ch; }
.faq__a p { color: var(--ink-soft); }

/* --- Callout -------------------------------------------------------------- */
.callout {
  padding: var(--s4);
  background: var(--paper-alt);
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
}
.callout__h {
  margin-bottom: .5rem;
  font-family: var(--mono); font-size: .76rem; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase; color: var(--steel-600);
}
.callout p { color: var(--ink-soft); max-width: 82ch; }

/* --- Projects ------------------------------------------------------------- */
.projects { border-top: 1px solid var(--line); }
.project {
  display: grid; grid-template-columns: 90px minmax(0, 1fr);
  gap: var(--s4);
  padding: clamp(1.5rem, 3vw, var(--s5)) 0;
  border-bottom: 1px solid var(--line);
}
.project__no {
  margin: 0;
  font-family: var(--mono); font-size: .82rem; letter-spacing: .1em;
  color: var(--accent);
}
.project h2 { font-size: clamp(1.25rem, 1.1rem + .6vw, 1.6rem); margin-bottom: .55rem; }
.project__desc { color: var(--ink-soft); max-width: 72ch; }
.project__body .list { margin: var(--s3) 0; max-width: 72ch; }
.project__link { margin-top: var(--s3); }

/* --- Facts / capabilities ------------------------------------------------- */
.facts { margin: 0; border-top: 1px solid var(--line); }
.facts__row {
  display: grid; grid-template-columns: minmax(0, 15rem) minmax(0, 1fr);
  gap: var(--s3);
  padding: var(--s3) 0;
  border-bottom: 1px solid var(--line);
}
.facts dt {
  font-family: var(--mono); font-size: .76rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--steel-500);
}
.facts dd { margin: 0; color: var(--ink); }
.facts--sm .facts__row { grid-template-columns: 1fr; gap: .15rem; padding-block: .6rem; }

.caps {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px; margin: 0; padding: 0; list-style: none;
  background: var(--line); border: 1px solid var(--line);
}
.caps a {
  display: flex; align-items: center; gap: var(--s3);
  min-height: 76px; padding: var(--s3);
  background: var(--paper);
  color: var(--ink); text-decoration: none;
  font-size: .95rem; line-height: 1.35;
}
.caps a:hover { background: var(--paper-alt); color: var(--accent-deep); }
.caps__icon { color: var(--accent); flex: none; display: block; }
.caps__icon .icon { width: 30px; height: 30px; }

/* --- Photo placeholders --------------------------------------------------- */
.photo-slot { margin: 0; background: var(--paper); }
.photo-slot__box {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: .5rem;
  aspect-ratio: var(--ratio, 16 / 9);
  padding: var(--s3);
  text-align: center;
  background:
    repeating-linear-gradient(135deg,
      var(--steel-100) 0 12px, var(--paper-alt) 12px 24px);
  border: 1px dashed var(--steel-300);
}
.photo-slot__tag {
  margin: 0;
  font-family: var(--mono); font-size: .68rem; font-weight: 500;
  letter-spacing: .13em; color: var(--steel-600);
}
.photo-slot__name {
  margin: 0; font-family: var(--mono); font-size: .74rem; color: var(--accent-deep);
}
.photo-slot figcaption {
  padding-top: .6rem;
  font-size: .85rem; color: var(--steel-500);
}
.photo-slot--wide { max-width: 900px; margin-inline: auto; }

/* --- Photography ---------------------------------------------------------- */
.photo { margin: 0; background: var(--paper); }
.photo img {
  display: block; width: 100%;
  aspect-ratio: var(--ratio, 4 / 3);
  object-fit: cover;
  background: var(--steel-100);
}
.photo figcaption {
  padding: var(--s3);
  font-size: .85rem; line-height: 1.45; color: var(--steel-600);
}
.photo-solo {
  max-width: 34rem;
  background: var(--paper);
  border: 1px solid var(--line);
}

/* --- Map --- */
.map { border: 1px solid var(--line); background: var(--steel-100); }
.map iframe { display: block; width: 100%; height: auto; aspect-ratio: 16 / 9; border: 0; }
.map__link { margin: var(--s3) 0 0; font-size: .9rem; }

/* --- Forms ---------------------------------------------------------------- */
.form { max-width: 44rem; }
.form__note {
  padding: var(--s3);
  margin-bottom: var(--s4);
  background: #fff8e6;
  border: 1px solid #e8d9a8;
  border-left: 3px solid #c99a2e;
  font-size: .9rem; color: #6b5312;
}
.form__row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--s3); }
.field { margin: 0 0 var(--s3); display: grid; gap: .35rem; }
.field label { font-size: .88rem; font-weight: 500; color: var(--ink); }
.req { font-weight: 400; color: var(--steel-500); }

input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  width: 100%;
  padding: .7rem .85rem;
  min-height: var(--tap);
  font: inherit; font-size: .98rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--steel-300);
  border-radius: 0;
}
textarea { min-height: 9rem; resize: vertical; }
input:focus, select:focus, textarea:focus {
  border-color: var(--accent); outline: 2px solid rgba(11, 127, 150, .18); outline-offset: 0;
}

.field--radios { border: 0; margin: 0 0 var(--s3); padding: 0; display: grid; gap: .4rem; }
.field--radios legend { padding: 0; font-size: .88rem; font-weight: 500; margin-bottom: .35rem; }
.radio, .check {
  display: flex; align-items: flex-start; gap: .55rem;
  font-size: .93rem; font-weight: 400; color: var(--ink-soft);
  cursor: pointer; min-height: 28px;
}
.radio input, .check input { margin-top: .25rem; accent-color: var(--accent); flex: none; }
.field--check { margin-bottom: var(--s4); }

.contact-list { margin: 0; padding: 0; list-style: none; }
.contact-list li {
  display: grid; gap: .1rem;
  padding: .6rem 0;
  border-bottom: 1px solid var(--line-dark);
}
.contact-list li:last-child { border-bottom: 0; }
.contact-list span {
  font-family: var(--mono); font-size: .68rem; letter-spacing: .11em;
  text-transform: uppercase; color: var(--steel-500);
}
.contact-list a { color: #fff; text-decoration: none; font-size: 1rem; }
.contact-list a:hover { color: var(--accent-bright); }

.addr { font-style: normal; color: var(--ink-soft); font-size: .95rem; line-height: 1.7; }

/* --- CTA band ------------------------------------------------------------- */
.band--cta {
  background: var(--navy-900);
  color: var(--steel-300);
  padding-block: clamp(2.5rem, 5vw, var(--s6));
  border-top: 3px solid var(--accent);
}
.band__inner {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--s5); align-items: center;
}
.band--cta h2 { color: #fff; margin-bottom: .6rem; }
.band--cta p { max-width: 58ch; margin: 0; }
.band__actions { display: flex; flex-wrap: wrap; gap: var(--s2); }
.band--cta .btn--ghost { color: #fff; border-color: var(--line-dark); }
.band--cta .btn--ghost:hover { background: #fff; color: var(--navy-900); border-color: #fff; }

/* --- Footer --------------------------------------------------------------- */
.site-footer {
  background: var(--navy-800);
  color: var(--steel-400);
  padding-block: clamp(2.5rem, 5vw, var(--s6)) var(--s4);
  font-size: .93rem;
}
.footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) repeat(3, minmax(0, 1fr));
  gap: clamp(1.75rem, 4vw, var(--s5));
}
.footer__blurb {
  margin-top: var(--s3);
  font-family: var(--mono); font-size: .74rem;
  letter-spacing: .09em; text-transform: uppercase; color: var(--steel-500);
}
.footer__meta { margin: var(--s4) 0 0; display: grid; gap: var(--s3); }
.footer__meta dt {
  font-family: var(--mono); font-size: .67rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--steel-600);
}
.footer__meta dd { margin: .2rem 0 0; color: var(--steel-300); font-size: .88rem; }

.footer__h {
  margin: 0 0 var(--s3);
  font-family: var(--mono); font-size: .72rem; font-weight: 500;
  letter-spacing: .13em; text-transform: uppercase; color: #fff;
}
.footer__list { margin: 0; padding: 0; list-style: none; display: grid; gap: .5rem; }
.footer__list a { color: var(--steel-400); text-decoration: none; }
.footer__list a:hover { color: var(--accent-bright); }
.footer__list--contact { gap: .7rem; }
.footer__addr { color: var(--steel-500); line-height: 1.6; }
.footer__more { margin-top: var(--s3); }
.footer__more a { color: var(--accent-bright); text-decoration: none; font-size: .85rem; }
.footer__emergency {
  margin-top: var(--s3);
  padding-top: var(--s3);
  border-top: 1px solid var(--line-dark);
  font-family: var(--mono); font-size: .68rem;
  letter-spacing: .1em; text-transform: uppercase; color: var(--accent-bright);
}

.footer__bottom {
  display: flex; flex-wrap: wrap; gap: var(--s2) var(--s4);
  justify-content: space-between;
  margin-top: clamp(2rem, 4vw, var(--s5));
  padding-top: var(--s3);
  border-top: 1px solid var(--line-dark);
  font-size: .8rem; color: var(--steel-600);
}
.footer__bottom p { margin: 0; }
.footer__bottom a { color: var(--steel-400); }
.footer__bottom a:hover { color: var(--accent-bright); }

/* --- WhatsApp FAB --------------------------------------------------------- */
.fab-whatsapp {
  position: fixed; right: clamp(.9rem, 2.5vw, 1.5rem); bottom: clamp(.9rem, 2.5vw, 1.5rem);
  z-index: 80;
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  background: #128c7e; color: #fff;
  border: 1px solid rgba(0, 0, 0, .1);
  border-radius: 50%;
  box-shadow: 0 2px 10px rgba(6, 17, 25, .25);
  transition: transform .15s ease, background .15s ease;
}
.fab-whatsapp:hover { background: #0f7a6d; color: #fff; transform: translateY(-2px); }

/* ==========================================================================
   Motion & interaction
   --------------------------------------------------------------------------
   The register stays the same as the rest of the sheet: instrumentation, not
   decoration. Nothing bounces, nothing overshoots, nothing moves more than a
   few pixels. Everything below is additive — with JavaScript off the `js`
   class never lands, the entrance states never apply and every page renders
   exactly as it did before. The reduced-motion block at the end of the file
   switches the whole thing off.
   ========================================================================== */

/* Entrance state is carried on two registered custom properties rather than a
   duplicated selector list. Registering them with `inherits: false` is what
   makes this work: a revealed ancestor cannot leak its "shown" value into a
   descendant that has not been revealed yet, and because the on-switch writes
   different properties than the off-switch, specificity never enters into it. */
@property --in   { syntax: "<number>"; inherits: false; initial-value: 0; }
@property --in-y { syntax: "<length>"; inherits: false; initial-value: 14px; }

:root {
  --ease:     cubic-bezier(.22, .61, .36, 1);
  --ease-out: cubic-bezier(.16, 1, .3, 1);
  --reveal:   .62s;
}

.js .hero__copy > *,
.js .hero__figure,
.js .stats > .stat,
.js .sec-head,
.js .sec-more,
.js .split__r,
.js .grid > .card,
.js .grid > .feature,
.js .grid > .tile,
.js .caps > a,
.js .steps > .step,
.js .projects > .project,
.js .facts > .facts__row,
.js .callout,
.js .photo-slot,
.js .grid > .photo,
.js .faq > .faq__item,
.js .band__inner > *,
.js .aside > .aside__card,
.js .prose > h2,
.js .prose > .pull,
.js .form > .field,
.js .form > .form__row,
.js .form > .field--radios,
.js .contact-list > li {
  opacity: var(--in);
  transform: translateY(var(--in-y));
  transition:
    opacity   var(--reveal) var(--ease) var(--d, 0ms),
    transform var(--reveal) var(--ease) var(--d, 0ms);
}

.is-in { --in: 1; --in-y: 0px; }

/* The accent tick above a section heading draws itself once the head lands. */
.js .sec-head h2::before { transform: scaleX(0); transform-origin: left; }
.js .sec-head.is-in h2::before {
  transform: scaleX(1);
  transition: transform .5s var(--ease) calc(var(--d, 0ms) + 180ms);
}

/* --- Header ---------------------------------------------------------------
   The bar tightens once the page has moved, so the sticky header takes less
   of a short screen back. */
.site-header { transition: box-shadow .3s ease; }
.site-header__inner { transition: min-height .3s var(--ease); }
body.is-scrolled .site-header__inner { min-height: 60px; }
body.is-scrolled .site-header { box-shadow: 0 12px 28px -18px rgba(6, 17, 25, .85); }

.brand__mark { transition: transform .45s var(--ease); }
.brand:hover .brand__mark { transform: rotate(-14deg); }

/* Reading progress, drawn on the header's own bottom hairline. */
.scroll-progress {
  position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: var(--accent-bright);
  transform: scaleX(var(--p, 0));
  transform-origin: left;
  pointer-events: none;
}

/* --- Underlines that sweep ------------------------------------------------ */
.nav__link { position: relative; }
.nav__link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 2px;
  background: var(--accent-bright);
  transform: scaleX(0); transform-origin: left;
  transition: transform .28s var(--ease);
}
.nav__link:hover::after,
.nav__link:focus-visible::after { transform: scaleX(1); }
.nav__link[aria-current="page"]::after { transform: scaleX(1); }

.link-arrow { position: relative; border-bottom-color: transparent; }
.link-arrow::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: currentColor;
}
.link-arrow:hover::after { animation: underline-sweep .5s var(--ease); }

@keyframes underline-sweep {
  0%   { transform: scaleX(1); transform-origin: right; }
  48%  { transform: scaleX(0); transform-origin: right; }
  52%  { transform: scaleX(0); transform-origin: left; }
  100% { transform: scaleX(1); transform-origin: left; }
}

/* --- Buttons -------------------------------------------------------------- */
.btn {
  transition: background .18s ease, color .18s ease, border-color .18s ease,
              transform .18s var(--ease), box-shadow .18s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 10px 20px -14px rgba(6, 17, 25, .9); }
.btn:active { transform: translateY(0); box-shadow: none; }

/* --- Cards ---------------------------------------------------------------- */
.card { transition: background .2s ease; }
.card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform .38s var(--ease);
}
.card:hover::after, .card:focus-visible::after { transform: scaleX(1); }
.card__icon { transition: transform .35s var(--ease); }
.card:hover .card__icon { transform: translateY(-3px); }
.card:hover .card__go { transform: translateX(6px); }
.card__go { transition: transform .25s var(--ease), color .2s ease; }

/* Feature blocks sit on the dark band and are not links — they lift by tone. */
.feature { transition: background .25s ease; }
.feature:hover { background: var(--navy-700); }
.feature__no { transition: letter-spacing .3s var(--ease); }
.feature:hover .feature__no { letter-spacing: .18em; }

.tile { transition: background .2s ease; }
.tile:hover { background: var(--paper-alt); }

.caps a { transition: background .2s ease, color .2s ease, padding-left .25s var(--ease); }
.caps a:hover { padding-left: calc(var(--s3) + 4px); }
.caps__icon { transition: transform .35s var(--ease); }
.caps a:hover .caps__icon { transform: scale(1.08); }

/* --- Process steps -------------------------------------------------------- */
.step { position: relative; }
.js .step::before {
  content: ""; position: absolute; left: 0; right: 0; top: -2px; height: 2px;
  background: var(--accent);
  transform: scaleX(0); transform-origin: left;
}
.js .step.is-in::before {
  transform: scaleX(1);
  transition: transform .55s var(--ease) calc(var(--d, 0ms) + 200ms);
}

/* --- Lists ---------------------------------------------------------------- */
.list li::before { transition: width .25s var(--ease), background .25s ease; }
.list li:hover::before { width: 15px; }
.list--num li::before { transition: color .25s ease; }

.facts__row { transition: background .2s ease; }
.facts__row:hover { background: var(--paper-alt); }

/* --- Projects ------------------------------------------------------------- */
.project { transition: background .25s ease; }
.project:hover { background: var(--paper-alt); }
.project__no { transition: color .25s ease; }
.project:hover .project__no { color: var(--accent); }

/* --- FAQ ------------------------------------------------------------------
   site.js animates the panel height; these rules cover the marker and the
   fade of the answer itself. */
.faq__item summary { transition: color .18s ease, padding-left .25s var(--ease); }
.faq__item summary:hover { padding-left: 4px; }
.faq__item summary::after { transition: transform .25s var(--ease), color .2s ease; }
.faq__item[open] summary::after { transform: rotate(180deg); }
.faq__item[data-animating] { overflow: hidden; }
.faq__item[data-animating] .faq__a { will-change: transform; }

/* --- Forms ---------------------------------------------------------------- */
input[type="text"], input[type="email"], input[type="tel"], select, textarea {
  transition: border-color .2s ease, outline-color .2s ease, background .2s ease;
}
.field label { transition: color .2s ease; }
.field:focus-within label { color: var(--accent-deep); }
.radio, .check { transition: color .18s ease; }
.radio:hover, .check:hover { color: var(--ink); }

.contact-list a { transition: color .18s ease, padding-left .25s var(--ease); }
.contact-list a:hover { padding-left: 4px; }

/* --- Hero ground ----------------------------------------------------------
   The blueprint grid drifts by exactly one cell, so the loop is seamless. */
.hero::before { animation: grid-drift 90s linear infinite; }
@keyframes grid-drift { to { background-position: 56px 56px; } }

/* --- Single-line diagram --------------------------------------------------
   `is-live` is set by site.js when the drawing scrolls into view. The layers
   come up in the order a switchboard actually energises: machines, incoming
   breakers, bus and tie, outgoing feeders, load — then the current starts
   flowing and the sync annotation marches. */
.js .sld__l { opacity: 0; transform: translateY(7px); }
.sld.is-live .sld__l { animation: sld-in .6s var(--ease-out) forwards; }
.sld.is-live .sld__l--1    { animation-delay: .05s; }
.sld.is-live .sld__l--2    { animation-delay: .28s; }
.sld.is-live .sld__l--3    { animation-delay: .5s; }
.sld.is-live .sld__l--4    { animation-delay: .72s; }
.sld.is-live .sld__l--5    { animation-delay: .94s; }
.sld.is-live .sld__l--sync { animation-delay: 1.3s; }

@keyframes sld-in { to { opacity: 1; transform: none; } }

/* Current flow. The paths run in the direction power travels, so a negative
   dash offset always reads as "downstream". */
.sld__flow {
  stroke: var(--accent-bright); stroke-width: 2.4;
  stroke-dasharray: 4 18; stroke-linecap: round;
  opacity: 0;
}
.sld.is-live .sld__flow { animation: sld-flow 1.9s linear infinite 1.15s, sld-flow-on .5s ease forwards 1.15s; }
.sld.is-live .sld__flow--b   { animation-delay: 1.3s, 1.3s; }
.sld.is-live .sld__flow--b3  { animation-delay: 1.4s, 1.4s; }
.sld.is-live .sld__flow--bus { animation-delay: 1.45s, 1.45s; stroke-dasharray: 4 26; }
.sld.is-live .sld__flow--c   { animation-delay: 1.6s, 1.6s; }

@keyframes sld-flow    { to { stroke-dashoffset: -220; } }
@keyframes sld-flow-on { to { opacity: .9; } }

/* Breakers close in sequence. */
.sld__brk { fill: rgba(51, 201, 221, 0); }
.sld.is-live .sld__brk { animation: sld-close .45s var(--ease) forwards; }
.sld.is-live .sld__brk        { animation-delay: .55s; }
.sld.is-live .sld__brk--2     { animation-delay: .68s; }
.sld.is-live .sld__brk--i3    { animation-delay: .81s; }
.sld.is-live .sld__brk--tie   { animation-delay: .95s; }
.sld.is-live .sld__brk--3     { animation-delay: 1.1s; }
.sld.is-live .sld__brk--4     { animation-delay: 1.2s; }
.sld.is-live .sld__brk--5     { animation-delay: 1.3s; }

@keyframes sld-close {
  to { fill: rgba(51, 201, 221, .2); stroke: var(--accent-bright); }
}

/* Two machines running independently — the offset delay is the point. */
.sld.is-live .sld__gen { animation: sld-run 4.4s ease-in-out infinite 1.2s; }
.sld.is-live .sld__gen--2 { animation-delay: 2.1s; }
.sld.is-live .sld__gen--3 { animation-delay: 3.2s; }
@keyframes sld-run {
  0%, 100% { stroke-width: 1.4; opacity: 1; }
  50%      { stroke-width: 2.2; opacity: .85; }
}

/* Consumers pick up one after another. */
.sld.is-live .sld__load { animation: sld-pickup .6s var(--ease) forwards 1.75s; }
.sld.is-live .sld__load--2 { animation-delay: 1.85s; }
.sld.is-live .sld__load--3 { animation-delay: 1.95s; }
.sld.is-live .sld__load--4 { animation-delay: 2.05s; }
.sld.is-live .sld__load--5 { animation-delay: 2.15s; }
@keyframes sld-pickup { to { stroke: var(--accent-bright); } }

.sld.is-live .sld__sync { animation: sld-sync 1s linear infinite 1.5s; }
@keyframes sld-sync { to { stroke-dashoffset: -16; } }

/* --- Photo placeholders --------------------------------------------------- */
.photo-slot__box { position: relative; overflow: hidden; }
.photo-slot__box::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(105deg, transparent 38%, rgba(255, 255, 255, .55) 50%, transparent 62%);
  transform: translateX(-100%);
  animation: slot-sheen 5.5s ease-in-out infinite;
  pointer-events: none;
}
@keyframes slot-sheen {
  0%, 62%  { transform: translateX(-100%); }
  100%     { transform: translateX(100%); }
}

/* --- Mobile navigation ---------------------------------------------------- */
@media (max-width: 900px) {
  .nav[data-open="true"] { animation: nav-drop .28s var(--ease-out); }
  .nav[data-open="true"] .nav__list > li,
  .nav[data-open="true"] .nav__cta {
    animation: nav-item .32s var(--ease-out) backwards;
  }
  .nav[data-open="true"] .nav__list > li:nth-child(1) { animation-delay: .04s; }
  .nav[data-open="true"] .nav__list > li:nth-child(2) { animation-delay: .08s; }
  .nav[data-open="true"] .nav__list > li:nth-child(3) { animation-delay: .12s; }
  .nav[data-open="true"] .nav__list > li:nth-child(4) { animation-delay: .16s; }
  .nav[data-open="true"] .nav__list > li:nth-child(5) { animation-delay: .20s; }
  .nav[data-open="true"] .nav__list > li:nth-child(6) { animation-delay: .24s; }
  .nav[data-open="true"] .nav__cta { animation-delay: .28s; }
}

@keyframes nav-drop { from { opacity: 0; transform: translateY(-8px); } }
@keyframes nav-item { from { opacity: 0; transform: translateY(-6px); } }

.nav-toggle__bars,
.nav-toggle__bars::before,
.nav-toggle__bars::after { transition: transform .28s var(--ease), background .2s ease; }

/* --- Floating actions ----------------------------------------------------- */
.fab-whatsapp { transition: transform .2s var(--ease), background .18s ease, box-shadow .2s ease; }
.fab-whatsapp:hover { transform: translateY(-3px) scale(1.05); box-shadow: 0 8px 22px rgba(6, 17, 25, .35); }
.fab-whatsapp::after {
  content: ""; position: absolute; inset: -1px; border-radius: 50%;
  border: 1px solid #128c7e;
  animation: fab-ring 3.4s ease-out infinite;
  pointer-events: none;
}
@keyframes fab-ring {
  0%       { transform: scale(1);    opacity: .7; }
  70%, 100% { transform: scale(1.55); opacity: 0; }
}

/* Back to top — injected by site.js, stacked above the WhatsApp button. */
.to-top {
  position: fixed; right: clamp(.9rem, 2.5vw, 1.5rem);
  bottom: calc(clamp(.9rem, 2.5vw, 1.5rem) + 62px);
  z-index: 80;
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; padding: 0;
  background: var(--navy-800); color: #fff;
  border: 1px solid var(--line-dark);
  cursor: pointer;
  opacity: 0; transform: translateY(10px); pointer-events: none;
  transition: opacity .25s ease, transform .25s var(--ease), background .18s ease;
}
.to-top[data-show="true"] { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { background: var(--accent-deep); }
.to-top svg { width: 18px; height: 18px; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .aside { position: static; grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .hero__inner { grid-template-columns: minmax(0, 1fr); }
  .hero__figure { max-width: 560px; }
  .grid--4, .caps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .band__inner { grid-template-columns: minmax(0, 1fr); }
  .footer__grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 900px) {
  .grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .split { grid-template-columns: minmax(0, 1fr); }
  .page-head--service .page-head__inner { grid-template-columns: minmax(0, 1fr); }
  .page-head__icon { display: none; }
  .facts__row { grid-template-columns: minmax(0, 1fr); gap: .2rem; }

  /* Mobile navigation */
  .nav-toggle { display: inline-flex; align-items: center; justify-content: center; }
  .nav {
    display: none;
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: var(--s3) var(--gut) var(--s4);
    background: var(--navy-900);
    border-bottom: 1px solid var(--line-dark);
    max-height: calc(100vh - 116px);
    overflow-y: auto;
  }
  .nav[data-open="true"] { display: flex; }
  .site-header__inner { position: relative; }
  .nav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav__link {
    padding: .85rem 0;
    border-bottom: 1px solid var(--line-dark);
    font-size: 1rem;
  }
  .nav__link[aria-current="page"] { border-bottom-color: var(--accent-bright); }
  .nav__cta { margin-top: var(--s3); justify-content: center; }
}

@media (max-width: 700px) {
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0; }
  .stat { border-bottom: 1px solid var(--line-dark); padding-block: var(--s3); }
  .stat:nth-child(2n) { border-right: 0; }
  .stat:nth-child(2n+1) { padding-left: 0; }
  .stat:nth-child(2n) { padding-left: var(--s3); }
  .topbar__inner { justify-content: center; text-align: center; }
  .topbar__links { gap: var(--s3); justify-content: center; }
}

@media (max-width: 620px) {
  .grid--2, .grid--3, .grid--4, .caps { grid-template-columns: minmax(0, 1fr); }
  .steps { grid-template-columns: minmax(0, 1fr); }
  .aside { grid-template-columns: minmax(0, 1fr); }
  .form__row { grid-template-columns: minmax(0, 1fr); gap: 0; }
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
  .project { grid-template-columns: minmax(0, 1fr); gap: var(--s2); }
  .hero__actions .btn, .band__actions .btn { flex: 1 1 auto; }
  .brand__tag { display: none; }
}

/* --- Motion & print ------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  /* The entrance states default to hidden, so they have to be switched on
     explicitly here — otherwise killing the transition would leave content
     stuck at opacity 0. */
  *, *::before, *::after { --in: 1; --in-y: 0px; }
  .js .sld__l { opacity: 1; transform: none; }
  .sld__flow, .photo-slot__box::after, .fab-whatsapp::after { display: none; }
}

@media print {
  .topbar, .nav, .nav-toggle, .fab-whatsapp, .to-top, .band--cta, .site-footer { display: none; }
  *, *::before, *::after { --in: 1; --in-y: 0px; }
  body { color: #000; font-size: 11pt; }
  .hero, .section--dark, .aside__card { background: #fff !important; color: #000 !important; }
  a { text-decoration: underline; }
}