/* ==========================================================================
   STARCO Fire Protection Engineers
   Design system - "drawing sheet": hairline rules, plan grid, mono annotation.
   Light only, by design. Every colour is painted explicitly.
   ========================================================================== */

:root {
  --ink:        #0d1626;
  --ink-2:      #1c2a3d;
  --steel:      #5a6a7d;
  --steel-2:    #8494a6;
  --paper:      #edf0f4;
  --surface:    #ffffff;
  --surface-2:  #f6f8fa;
  --rule:       #d3dae2;
  --rule-soft:  #e4e9ee;
  --red:        #e30613;
  --red-deep:   #b8040f;
  --grid:       rgba(13, 22, 38, .055);

  --shell: 1180px;
  --step-0: 1rem;
  --step-1: 1.16rem;
  --step-2: 1.42rem;
  --step-3: 1.9rem;
  --step-4: clamp(2.1rem, 4vw, 3.1rem);
  --step-5: clamp(2.2rem, 4.2vw, 3.4rem);

  --sans: "IBM Plex Sans", ui-sans-serif, system-ui, "Segoe UI", sans-serif;
  --display: "Archivo", "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
}

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--step-0);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5 {
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -.022em;
  line-height: 1.12;
  text-wrap: balance;
  margin: 0;
}

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }
a { color: inherit; }
img { max-width: 100%; height: auto; }

a:focus-visible, button:focus-visible,
input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

.shell { width: min(100% - 2.5rem, var(--shell)); margin-inline: auto; }

.mono {
  font-family: var(--mono);
  font-size: .705rem;
  letter-spacing: .13em;
  text-transform: uppercase;
  color: var(--steel);
}

.eyebrow { display: inline-flex; align-items: center; gap: .6rem; }
.eyebrow::before { content: ""; width: 26px; height: 2px; background: var(--red); flex: none; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap;
}

.icon { width: 1em; height: 1em; fill: currentColor; flex: none; vertical-align: -.125em; }

/* --------------------------------------------------------------- buttons  */
.btn {
  display: inline-block;
  text-decoration: none;
  font-weight: 600;
  font-size: .92rem;
  font-family: inherit;
  padding: .8rem 1.5rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background .16s ease, color .16s ease, border-color .16s ease;
}
.btn-primary { background: var(--red); color: #fff; }
.btn-primary:hover { background: var(--red-deep); }
.btn-ghost { border-color: var(--rule); color: var(--ink); background: transparent; }
.btn-ghost:hover { border-color: var(--ink); }
.btn-block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: .45rem;
  text-decoration: none; font-weight: 600; font-size: .92rem; color: var(--ink);
}
.link-arrow .icon { color: var(--red); transition: transform .18s ease; }
.link-arrow:hover .icon { transform: translateX(3px); }

/* ------------------------------------------------------------- titleblock */
.titleblock { background: var(--paper); border-bottom: 1px solid var(--rule); }
.titleblock .shell {
  display: flex; flex-wrap: wrap; gap: .25rem 2rem;
  padding: .5rem 0; align-items: baseline;
}
.titleblock .mono b { color: var(--ink); font-weight: 500; }
.titleblock .spacer { margin-left: auto; }
.titleblock a { text-decoration: none; }
.titleblock a:hover { color: var(--red); }
@media (max-width: 720px) { .titleblock .hide-sm { display: none; } }

/* ---------------------------------------------------------------- header  */
.utility { background: var(--surface); border-bottom: 1px solid var(--rule-soft); font-size: .84rem; }
.utility .shell {
  display: flex; flex-wrap: wrap; gap: .35rem 1.75rem;
  padding: .6rem 0; color: var(--steel); align-items: center;
}
.utility a { text-decoration: none; display: inline-flex; align-items: center; gap: .45rem; }
.utility a:hover { color: var(--red); }
.utility .spacer { margin-left: auto; }
.utility .icon { color: var(--steel-2); }

.nav {
  position: sticky; top: 0; z-index: 40;
  background: var(--surface);
  border-bottom: 1px solid var(--rule);
}
.nav .shell { display: flex; align-items: center; gap: 1.5rem; min-height: 68px; }
.brand { display: flex; align-items: center; text-decoration: none; flex: none; }
.brand img { height: 34px; width: auto; display: block; }

.navlinks {
  display: flex; align-items: center; gap: 1.5rem;
  margin: 0 0 0 auto; padding: 0; list-style: none;
  font-size: .92rem; font-weight: 500;
}
.navlinks > li { position: relative; }
.navlinks > li > a, .navlinks > li > button {
  display: inline-flex; align-items: center; gap: .35rem;
  text-decoration: none; color: var(--ink-2);
  padding: .35rem 0; border: 0; background: none;
  font: inherit; cursor: pointer;
  border-bottom: 2px solid transparent;
}
.navlinks > li > a:hover, .navlinks > li > button:hover { color: var(--ink); border-bottom-color: var(--red); }
.navlinks > li > .current { color: var(--ink); border-bottom-color: var(--ink); }
.navlinks .caret { transition: transform .18s ease; color: var(--steel-2); }
.navlinks [aria-expanded="true"] .caret { transform: rotate(180deg); }

.submenu {
  position: absolute; top: calc(100% + 1px); left: -1rem;
  min-width: 265px; margin: 0; padding: .4rem 0; list-style: none;
  background: var(--surface); border: 1px solid var(--rule);
  box-shadow: 0 18px 40px -24px rgba(13, 22, 38, .35);
  display: none; z-index: 50;
}
.submenu[data-open="true"] { display: block; }
.submenu a {
  display: block; padding: .5rem 1rem; text-decoration: none;
  color: var(--ink-2); font-size: .9rem; font-weight: 400;
}
.submenu a:hover { background: var(--surface-2); color: var(--red); }

.nav-toggle { display: none; border: 1px solid var(--rule); background: var(--surface); padding: .55rem .7rem; cursor: pointer; margin-left: auto; }
.nav-toggle .icon { width: 1.15rem; height: 1.15rem; color: var(--ink); }
.nav .cta { flex: none; }

@media (max-width: 1040px) {
  .nav-toggle { display: inline-flex; }
  .nav .cta { display: none; }
  .navlinks {
    display: none; position: absolute; top: 100%; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--surface); border-bottom: 1px solid var(--rule);
    padding: .5rem 0; max-height: 75vh; overflow-y: auto;
  }
  .navlinks[data-open="true"] { display: flex; }
  .nav .shell { position: relative; flex-wrap: wrap; }
  .navlinks > li > a, .navlinks > li > button {
    width: 100%; justify-content: space-between;
    padding: .7rem calc((100vw - min(100% - 2.5rem, var(--shell))) / 2);
    padding-inline: 1.25rem; border-bottom: 1px solid var(--rule-soft);
  }
  .submenu { position: static; border: 0; box-shadow: none; background: var(--surface-2); }
  .submenu a { padding-left: 2.25rem; }
}

/* -------------------------------------------------------------- page head */
.pagehead {
  background:
    repeating-linear-gradient(to right, var(--grid) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(to bottom, var(--grid) 0 1px, transparent 1px 56px),
    var(--surface);
  border-bottom: 1px solid var(--rule);
  padding: 3.25rem 0;
}
.pagehead h1 { font-size: var(--step-4); margin: .85rem 0 0; max-width: 22ch; }
.pagehead .crumbs { display: flex; flex-wrap: wrap; gap: .5rem; list-style: none; margin: 1.1rem 0 0; padding: 0; }
.pagehead .crumbs li { display: flex; align-items: center; gap: .5rem; }
.pagehead .crumbs li + li::before { content: "/"; color: var(--steel-2); }
.pagehead .crumbs a { text-decoration: none; color: var(--steel); }
.pagehead .crumbs a:hover { color: var(--red); }
.pagehead .crumbs .current { color: var(--ink-2); }

.pagehead.with-plate .shell { display: grid; grid-template-columns: 1.05fr .95fr; gap: 3rem; align-items: center; }
@media (max-width: 880px) { .pagehead.with-plate .shell { grid-template-columns: 1fr; gap: 2rem; } }

/* ------------------------------------------------------- technical plate  */
.plate { position: relative; }
.plate figure { margin: 0; border: 1px solid var(--rule); background: var(--surface-2); }
.plate img { display: block; width: 100%; height: auto; }
.plate figcaption {
  display: flex; justify-content: space-between; gap: 1rem;
  padding: .6rem .8rem; border-top: 1px solid var(--rule);
}
.plate .tick {
  position: absolute; inset: auto auto -1px -1px; width: 20px; height: 20px;
  border-left: 2px solid var(--red); border-bottom: 2px solid var(--red);
}

/* ------------------------------------------------------------------ hero  */
.hero {
  background:
    repeating-linear-gradient(to right, var(--grid) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(to bottom, var(--grid) 0 1px, transparent 1px 56px),
    var(--surface);
  border-bottom: 1px solid var(--rule);
}
.hero .shell {
  display: grid; grid-template-columns: 1.05fr .95fr; gap: 3.5rem;
  padding: 4.5rem 0 3.75rem; align-items: center;
}
.hero h1 { font-size: var(--step-5); margin: 1.15rem 0 1.25rem; }
.hero h1 em { font-style: normal; color: var(--red); }
.hero .lede { font-size: var(--step-1); color: var(--ink-2); max-width: 46ch; margin: 0 0 2rem; }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; }
@media (max-width: 880px) { .hero .shell { grid-template-columns: 1fr; gap: 2.5rem; padding: 3rem 0 2.75rem; } }

/* --------------------------------------------------------- figures band   */
.figures { background: var(--surface); border-bottom: 1px solid var(--rule); }
.figures .shell {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--rule); border-inline: 1px solid var(--rule);
}
.figures .cell { background: var(--surface); padding: 1.9rem 1.5rem; }
.figures .n {
  font-family: var(--display); font-size: var(--step-4); font-weight: 700;
  font-variant-numeric: tabular-nums; letter-spacing: -.03em; line-height: 1; color: var(--ink);
}
.figures .n s { text-decoration: none; color: var(--red); }
.figures .mono { margin-top: .6rem; display: block; }
@media (max-width: 820px) { .figures .shell { grid-template-columns: repeat(2, 1fr); } }

/* -------------------------------------------------------------- sections  */
section { padding: 4.75rem 0; }
.band-paper { background: var(--paper); }
.band-surface { background: var(--surface); border-block: 1px solid var(--rule); }

.section-head {
  display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 32ch);
  gap: 2.5rem; align-items: end;
  padding-bottom: 1.75rem; margin-bottom: 2.5rem;
  border-bottom: 1px solid var(--rule);
}
.section-head h2 { font-size: var(--step-4); margin-top: .9rem; }
.section-head p { margin: 0; color: var(--steel); font-size: .95rem; }
@media (max-width: 780px) { .section-head { grid-template-columns: 1fr; gap: 1.25rem; } }

/* --------------------------------------------------------------- systems  */
.systems {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 1px;
  background: var(--rule); border: 1px solid var(--rule);
}
.systems.cols-3 { grid-template-columns: repeat(3, 1fr); }
.systems.cols-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1080px) { .systems, .systems.cols-3, .systems.cols-4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px)  { .systems, .systems.cols-3, .systems.cols-4 { grid-template-columns: 1fr; } }

.system {
  background: var(--surface); padding: 1.6rem 1.5rem 1.5rem;
  text-decoration: none; display: flex; flex-direction: column; gap: .55rem;
  position: relative; transition: background .16s ease;
}
.system::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: var(--red); transform: scaleX(0); transform-origin: left;
  transition: transform .22s ease;
}
.system:hover, .system:focus-visible { background: var(--surface-2); }
.system:hover::before, .system:focus-visible::before { transform: scaleX(1); }
.system h3 { font-size: var(--step-1); font-weight: 600; }
.system p { margin: 0; font-size: .9rem; color: var(--steel); }
.system .thumb { margin: -1.6rem -1.5rem .35rem; border-bottom: 1px solid var(--rule); background: var(--surface-2); aspect-ratio: 16 / 10; overflow: hidden; }
.system .thumb img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* -------------------------------------------------------------- projects  */
.grid-cards {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.75rem;
}
.card { display: flex; flex-direction: column; text-decoration: none; }
.card .shot {
  aspect-ratio: 4 / 3; overflow: hidden;
  border: 1px solid var(--rule); background: var(--surface-2);
}
.card .shot img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s cubic-bezier(.2,.7,.3,1); }
.card:hover .shot img { transform: scale(1.045); }
.card h3 { font-size: var(--step-1); margin: 1rem 0 .75rem; font-weight: 600; }
.card:hover h3 { color: var(--red); }

.specs { list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--rule-soft); }
.specs li {
  display: grid; grid-template-columns: 8.5rem 1fr; gap: 1rem;
  padding: .5rem 0; border-bottom: 1px solid var(--rule-soft); font-size: .875rem;
}
.specs .k {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--steel-2); padding-top: .18rem;
}
.specs .v { color: var(--ink-2); }
@media (max-width: 420px) { .specs li { grid-template-columns: 1fr; gap: .1rem; } }

.img-placeholder {
  display: flex; align-items: center; justify-content: center;
  width: 100%; height: 100%; min-height: 170px;
  background: var(--surface-2); color: var(--steel-2);
}
.img-placeholder .icon { width: 2rem; height: 2rem; }

/* --------------------------------------------------------------- clients  */
.client-list {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(265px, 1fr));
  gap: 0 2.5rem; list-style: none; margin: 0; padding: 0;
}
.client-list li {
  padding: .85rem 0; border-bottom: 1px solid var(--rule-soft);
  display: flex; gap: .9rem; align-items: baseline; font-size: .95rem;
}
.client-list .idx { font-family: var(--mono); font-size: .68rem; color: var(--steel-2); font-variant-numeric: tabular-nums; }

.approvals { display: flex; flex-wrap: wrap; gap: .6rem; }
.chip {
  border: 1px solid var(--rule); padding: .5rem .85rem;
  font-family: var(--mono); font-size: .7rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--ink-2); background: var(--surface);
}
.cert-row {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  gap: 1px; background: var(--rule); border: 1px solid var(--rule);
}
.cert-row .cert { background: var(--surface); padding: 1.25rem; display: grid; place-items: center; }
.cert-row img { max-height: 62px; width: auto; object-fit: contain; }

/* ------------------------------------------------------------------ prose */
.prose { max-width: 68ch; }
.prose h2 { font-size: var(--step-3); margin: 2.25rem 0 .85rem; }
.prose h3 { font-size: var(--step-2); margin: 2rem 0 .75rem; }
.prose h4 { font-size: var(--step-1); margin: 1.75rem 0 .6rem; }
.prose > :first-child { margin-top: 0; }
.prose p, .prose li { color: var(--ink-2); }
.prose ul, .prose ol { padding-left: 1.25rem; margin: 0 0 1.1em; }
.prose li { margin-bottom: .35rem; }
.prose li > ul, .prose li > ol { margin: .35rem 0 0; }
.prose strong { color: var(--ink); }
.prose img { border: 1px solid var(--rule); }
.prose table { width: 100%; border-collapse: collapse; }
.prose .tm1, .prose .tm2, .prose .tm3, .prose .tm4, .prose .tm5,
.prose .tm6, .prose .tm7, .prose .tm8, .prose .tm9, .prose .tm10, .prose .tm11 {
  font: inherit; color: inherit; letter-spacing: inherit;
}

/* ------------------------------------------------------------- two-column */
.with-sidebar { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 3.25rem; align-items: start; }
@media (max-width: 960px) { .with-sidebar { grid-template-columns: 1fr; gap: 2.5rem; } }

.panel { border: 1px solid var(--rule); background: var(--surface); }
.panel + .panel { margin-top: 1.5rem; }
.panel > h3 {
  font-size: .95rem; font-weight: 600; padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--rule); margin: 0;
}
.panel-body { padding: 1.25rem; }

.stack-links { list-style: none; margin: 0; padding: 0; }
.stack-links li + li { border-top: 1px solid var(--rule-soft); }
.stack-links a {
  display: flex; gap: .85rem; align-items: center;
  padding: .8rem 1.25rem; text-decoration: none; font-size: .92rem; color: var(--ink-2);
}
.stack-links a:hover { background: var(--surface-2); color: var(--red); }
.stack-links .mini {
  width: 52px; height: 40px; flex: none; object-fit: cover;
  border: 1px solid var(--rule); background: var(--surface-2);
}

/* ------------------------------------------------------------------ forms */
.form-grid { display: grid; gap: .9rem; }
.field { display: grid; gap: .35rem; }
.field label {
  font-family: var(--mono); font-size: .66rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--steel);
}
.field input, .field textarea, .field select {
  font: inherit; font-size: .95rem; color: var(--ink);
  background: var(--surface-2); border: 1px solid var(--rule);
  padding: .68rem .8rem; width: 100%; border-radius: 0;
}
.field textarea { min-height: 110px; resize: vertical; }
.field input:focus-visible, .field textarea:focus-visible, .field select:focus-visible { border-color: transparent; }
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

.form-note { color: var(--steel); font-size: .875rem; margin: 0; }
.form-status { padding: .9rem 1rem; font-size: .92rem; border: 1px solid; }
.form-status[hidden] { display: none; }
.form-status.is-ok { background: #eefaf0; border-color: #b7e3c0; color: #17532a; }
.form-status.is-error { background: #fdeced; border-color: #f5b8bd; color: #8c0910; }
.is-busy { opacity: .6; pointer-events: none; }

/* ---------------------------------------------------------------- contact */
.contact { background: var(--surface-2); border-top: 1px solid var(--rule); }
.contact .shell { display: grid; grid-template-columns: 1.1fr .9fr; gap: 3.5rem; align-items: start; }
.contact h2 { font-size: var(--step-4); margin-bottom: 1rem; }
.contact p { color: var(--ink-2); max-width: 44ch; }
.lines { list-style: none; margin: 2rem 0 0; padding: 0; display: grid; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
.lines li { background: var(--surface); padding: 1rem 1.2rem; display: grid; gap: .3rem; }
.lines a { color: var(--ink); text-decoration: none; font-size: var(--step-1); font-weight: 500; }
.lines a:hover { color: var(--red); }
.lines li > span:not(.mono) { color: var(--ink); font-size: var(--step-1); font-weight: 500; }
.form-card { background: var(--surface); border: 1px solid var(--rule); padding: 1.9rem; }
.form-card h3 { font-size: var(--step-2); margin-bottom: .35rem; }
@media (max-width: 880px) { .contact .shell { grid-template-columns: 1fr; gap: 2.5rem; } }

.map-frame { border: 1px solid var(--rule); background: var(--surface-2); line-height: 0; }
.map-frame iframe { width: 100%; height: 420px; border: 0; display: block; }

/* ----------------------------------------------------------------- footer */
.site-footer { background: var(--surface); border-top: 1px solid var(--rule); }
.footer-cols {
  display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 2.5rem; padding: 3.25rem 0 2.5rem;
}
.footer-cols h4 { font-size: .95rem; font-weight: 600; margin-bottom: 1rem; }
.footer-cols ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .55rem; }
.footer-cols a { text-decoration: none; color: var(--steel); font-size: .92rem; }
.footer-cols a:hover { color: var(--red); }
.footer-cols .contact-lines li { display: flex; gap: .6rem; color: var(--steel); font-size: .92rem; }
.footer-cols .contact-lines .icon { color: var(--steel-2); margin-top: .35rem; }
.footer-brand img { height: 38px; width: auto; margin-bottom: 1rem; }
.footer-brand p { color: var(--steel); font-size: .92rem; max-width: 34ch; }
.social { display: flex; gap: .5rem; margin-top: 1.25rem; }
.social a {
  width: 38px; height: 38px; border: 1px solid var(--rule);
  display: grid; place-items: center; color: var(--ink-2);
}
.social a:hover { border-color: var(--red); color: var(--red); }
.footer-bottom { border-top: 1px solid var(--rule-soft); padding: 1.25rem 0; }
.footer-bottom .shell { display: flex; flex-wrap: wrap; gap: .5rem 2rem; align-items: baseline; }
.footer-bottom .spacer { margin-left: auto; }
@media (max-width: 900px) { .footer-cols { grid-template-columns: repeat(2, 1fr); gap: 2rem; } }
@media (max-width: 520px) { .footer-cols { grid-template-columns: 1fr; } }

/* ------------------------------------------------------------------- 404  */
.error-page { text-align: center; padding: 6rem 0; }
.error-page .code {
  font-family: var(--display); font-size: clamp(4rem, 14vw, 8rem);
  line-height: 1; letter-spacing: -.04em; color: var(--rule);
}
.error-page h1 { font-size: var(--step-3); margin: 1rem 0 .75rem; }
.error-page p { color: var(--steel); max-width: 46ch; margin-inline: auto; }
.error-page .actions { justify-content: center; margin-top: 1.75rem; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: .01ms !important; animation-duration: .01ms !important; }
}

/* ---------------------------------------------------------------- brands  */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1px;
  background: var(--rule);
  border: 1px solid var(--rule);
}
.brand-card {
  background: var(--surface);
  padding: 2rem 1.9rem;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  gap: .6rem;
  position: relative;
  transition: background .16s ease;
}
.brand-card::before {
  content: "";
  position: absolute; inset: 0 0 auto 0; height: 2px;
  background: var(--red); transform: scaleX(0); transform-origin: left;
  transition: transform .22s ease;
}
.brand-card:hover { background: var(--surface-2); }
.brand-card:hover::before { transform: scaleX(1); }
.brand-card h2 { font-size: var(--step-2); font-weight: 600; }
.brand-card p { margin: 0; color: var(--steel); font-size: .92rem; }
.brand-card .link-arrow { margin-top: auto; padding-top: 1rem; font-size: .85rem; }

.brand-mark {
  display: flex; align-items: center;
  height: 62px; margin-bottom: .9rem;
}
.brand-mark img { max-height: 52px; width: auto; object-fit: contain; }
.brand-mark.standalone {
  height: auto; padding: 1.5rem 1.75rem; margin-bottom: 2rem;
  border: 1px solid var(--rule); background: var(--surface);
}
.brand-mark.standalone img { max-height: 60px; }

.range {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--rule-soft);
}
.range h3 { font-size: var(--step-1); font-weight: 600; margin-bottom: .6rem; }
.range p { color: var(--ink-2); max-width: 68ch; margin-bottom: 1rem; }
.range .chip { background: var(--surface-2); }

/* ------------------------------------------------ brand product tiles  */
.product-tiles {
  list-style: none; margin: 1.1rem 0 0; padding: 0;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: .75rem;
}
.product-tiles li { background: #fff; border: 1px solid var(--rule); }
.product-tiles figure { margin: 0; height: 100%; display: flex; flex-direction: column; }
.product-tiles img { display: block; width: 100%; height: auto; aspect-ratio: 1; object-fit: contain; padding: .5rem; }
.product-tiles figcaption {
  margin-top: auto; padding: .55rem .7rem; border-top: 1px solid var(--rule-soft);
  font-size: .62rem; letter-spacing: .06em; line-height: 1.45; color: var(--ink-2);
  background: var(--surface); text-transform: uppercase;
}
.product-tiles + .approvals { margin-top: .9rem; }

/* ---------------------------------------------------- ISO certificate  */
.iso-cert { margin: 1rem 0 0; max-width: 520px; }
.iso-cert a { display: block; border: 1px solid var(--rule); background: #fff; }
.iso-cert img { display: block; width: 100%; height: auto; }
.iso-cert figcaption { display: flex; justify-content: space-between; gap: 1rem; padding: .6rem .8rem; border: 1px solid var(--rule); border-top: 0; }