/* ============================================================
   ARK INDUSTRIES — main.css
   Luxury above. Fortified below.
   Palette, type, and usage rules per Ark Industries Brand
   Guidelines v1.0 (2026).
   ============================================================ */

:root {
  /* Brand palette */
  --ink: #14120F;
  --graphite: #4B4A46;
  --steel: #A9ABA8;
  --bronze: #B08D57;
  --alabaster: #F3EFE7;
  --alabaster-dim: #E7E1D4;
  --steel-dim: #DEDCD3;
  --error: #8C3B2E;

  /* Derived — darkened bronze for small text on light grounds (AA) */
  --bronze-text: #7D5F31;
  /* Ink at reduced presence for soft shadows */
  --shadow: 0 18px 40px -18px rgba(20, 18, 15, 0.35);

  /* Type */
  --font-serif: "Instrument Serif", Georgia, "Times New Roman", serif;
  --font-sans: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-tech: "Oswald", "Arial Narrow", "Helvetica Neue", sans-serif;

  --header-h: 76px;
  --container: 1200px;
  --container-wide: 1360px;
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--graphite);
  background: var(--alabaster);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 400;
  color: var(--ink);
  line-height: 1.12;
  margin: 0 0 0.5em;
}
h4, h5, h6 { color: var(--ink); margin: 0 0 0.5em; }
h1 { font-size: clamp(2.6rem, 6vw, 4.4rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.9rem, 3.6vw, 2.75rem); }
h3 { font-size: clamp(1.4rem, 2.4vw, 1.75rem); }
p { margin: 0 0 1.15em; }
a { color: var(--ink); text-decoration-color: var(--bronze); text-underline-offset: 3px; }
a:hover { color: var(--bronze-text); }
ul, ol { padding-left: 1.3em; }
strong { color: var(--ink); }
hr { border: 0; border-top: 1px solid var(--steel-dim); margin: 2.5rem 0; }

::selection { background: var(--bronze); color: var(--ink); }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 200;
  background: var(--ink); color: var(--alabaster); padding: 0.6rem 1rem;
}
.skip-link:focus { left: 0; }

/* ---------- Utility type ---------- */
.eyebrow {
  font-family: var(--font-tech);
  font-weight: 500;
  font-size: 0.8rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--bronze-text);
  display: block;
  margin: 0 0 0.9rem;
}
.theme-dark .eyebrow, .on-dark .eyebrow { color: var(--bronze); }

.lede { font-size: clamp(1.15rem, 1.8vw, 1.3rem); line-height: 1.6; color: var(--graphite); }
.theme-dark .lede, .on-dark .lede { color: var(--steel-dim); }

.container { max-width: var(--container); margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem); }
.container-wide { max-width: var(--container-wide); margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem); }
.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section-tight { padding: clamp(2.5rem, 5vw, 4rem) 0; }
.center { text-align: center; }
.measure { max-width: 46em; }
.center .measure, .measure.mx { margin-left: auto; margin-right: auto; }

/* Blueprint grid texture — dividers only, never behind body copy */
.bp-grid {
  background-color: var(--alabaster-dim);
  background-image:
    linear-gradient(rgba(75, 74, 70, 0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(75, 74, 70, 0.07) 1px, transparent 1px);
  background-size: 32px 32px;
}
.theme-dark .bp-grid, .bp-grid.on-dark {
  background-color: transparent;
  background-image:
    linear-gradient(rgba(243, 239, 231, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(243, 239, 231, 0.05) 1px, transparent 1px);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-tech);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.95rem 1.9rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn-bronze { background: var(--bronze); color: var(--ink); }
.btn-bronze:hover, .btn-bronze:focus-visible { background: var(--ink); color: var(--alabaster); }
.theme-dark .btn-bronze:hover, .on-dark .btn-bronze:hover { background: var(--alabaster); color: var(--ink); }
.btn-outline { background: transparent; color: var(--ink); border-color: var(--ink); }
.btn-outline:hover, .btn-outline:focus-visible { background: var(--ink); color: var(--alabaster); }
.btn-outline-light { background: transparent; color: var(--alabaster); border-color: var(--steel); }
.btn-outline-light:hover, .btn-outline-light:focus-visible { background: var(--alabaster); color: var(--ink); border-color: var(--alabaster); }
.btn-small { padding: 0.6rem 1.2rem; font-size: 0.8rem; }
.btn:focus-visible, a:focus-visible, button:focus-visible {
  outline: 2px solid var(--bronze);
  outline-offset: 3px;
}

.text-link {
  font-weight: 600;
  color: var(--ink);
  text-decoration: none;
  border-bottom: 1px solid var(--bronze);
  padding-bottom: 1px;
}
.text-link:hover { color: var(--bronze-text); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: var(--alabaster);
  border-bottom: 1px solid var(--steel-dim);
}
/* The header keeps its light palette on dark-theme pages */
.site-header .site-nav a:not(.btn),
.site-header .header-actions a.header-phone,
.site-header .nav-toggle { color: var(--ink); }
.site-header .site-nav a:not(.btn):hover { color: var(--ink); }
.site-header .header-actions a.header-phone .phone-label { color: var(--bronze-text); }
.site-header .header-actions a.header-phone:hover { color: var(--bronze-text); }
.site-header.scrolled { box-shadow: 0 6px 24px -12px rgba(20, 18, 15, 0.25); }
.header-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 0 clamp(1rem, 3vw, 2rem);
  height: var(--header-h);
  display: flex; align-items: center; gap: 1.5rem;
}
.header-logo { flex-shrink: 0; display: flex; align-items: center; }
.header-logo img { width: clamp(150px, 16vw, 196px); height: auto; }
.site-nav { margin-left: auto; }
.site-nav ul { list-style: none; margin: 0; padding: 0; display: flex; align-items: center; gap: clamp(0.9rem, 1.6vw, 1.6rem); }
.site-nav a:not(.btn) {
  font-size: 0.95rem; font-weight: 500; text-decoration: none; color: var(--ink);
  padding: 0.3rem 0; border-bottom: 2px solid transparent;
}
.site-nav a:not(.btn):hover { border-bottom-color: var(--bronze); color: var(--ink); }
.site-nav a[aria-current="page"]:not(.btn) { border-bottom-color: var(--bronze); }
.header-actions { display: flex; align-items: center; gap: 1rem; }
.header-phone {
  font-family: var(--font-tech); font-weight: 500; font-size: 0.85rem;
  letter-spacing: 0.1em; text-transform: uppercase; text-decoration: none;
  color: var(--ink); white-space: nowrap;
}
.header-phone .phone-label { color: var(--bronze-text); margin-right: 0.35em; }
.header-phone:hover .phone-number { color: var(--bronze-text); }
.nav-toggle {
  display: none;
  background: none; border: 1px solid var(--ink); color: var(--ink);
  font-family: var(--font-tech); font-size: 0.8rem; letter-spacing: 0.12em; text-transform: uppercase;
  padding: 0.5rem 0.9rem; cursor: pointer; align-items: center; gap: 0.5rem;
}
.nav-toggle-box { display: inline-block; width: 18px; position: relative; height: 12px; }
.nav-toggle-bar, .nav-toggle-box::before, .nav-toggle-box::after {
  content: ""; position: absolute; left: 0; width: 100%; height: 2px; background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle-box::before { top: 0; }
.nav-toggle-bar { top: 5px; }
.nav-toggle-box::after { top: 10px; }
.nav-open .nav-toggle-box::before { transform: translateY(5px) rotate(45deg); }
.nav-open .nav-toggle-bar { opacity: 0; }
.nav-open .nav-toggle-box::after { transform: translateY(-5px) rotate(-45deg); }

@media (max-width: 1023px) {
  .site-nav {
    position: fixed; inset: var(--header-h) 0 auto 0; z-index: 99;
    background: var(--alabaster);
    border-bottom: 1px solid var(--steel-dim);
    padding: 1rem clamp(1.25rem, 4vw, 2.5rem) 2rem;
    display: none;
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .nav-open .site-nav { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .site-nav li { border-bottom: 1px solid var(--steel-dim); }
  .site-nav li.nav-contact { border-bottom: 0; padding-top: 1.25rem; }
  .site-nav a:not(.btn) { display: block; padding: 0.9rem 0; font-size: 1.05rem; border-bottom: 0; }
  .site-nav a[aria-current="page"]:not(.btn) { color: var(--bronze-text); }
  .nav-toggle { display: inline-flex; }
  .header-phone .phone-label { display: none; }
}
@media (max-width: 519px) {
  .header-phone .phone-number { display: none; }
  .header-phone::after { content: "Call"; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: min(88vh, 860px);
  display: flex; align-items: flex-end;
  color: var(--alabaster);
  isolation: isolate;
  overflow: hidden;
}
.hero-media, .hero-media img { position: absolute; inset: 0; width: 100%; height: 100%; }
.hero-media img { object-fit: cover; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(to top, rgba(20, 18, 15, 0.85) 0%, rgba(20, 18, 15, 0.52) 40%, rgba(20, 18, 15, 0.3) 70%, rgba(20, 18, 15, 0.28) 100%);
}
.hero-content {
  position: relative; z-index: 2;
  width: 100%;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: clamp(6rem, 14vh, 9rem) clamp(1.25rem, 4vw, 2.5rem) clamp(3rem, 7vh, 5rem);
}
.hero h1 { color: #fff; max-width: 15em; margin-bottom: 0.4em; text-shadow: 0 2px 24px rgba(20, 18, 15, 0.45); }
.hero .eyebrow {
  color: var(--alabaster);
  text-shadow: 0 1px 12px rgba(20, 18, 15, 0.6);
  display: flex; align-items: center; gap: 0.9rem;
}
.hero .eyebrow::before { content: ""; width: 34px; height: 1px; background: var(--bronze); flex-shrink: 0; }
.hero-sub { max-width: 38em; font-size: clamp(1.05rem, 1.6vw, 1.25rem); color: var(--alabaster); }
.hero-cta { margin-top: 1.8rem; display: flex; flex-wrap: wrap; gap: 1rem; }
.hero-short { min-height: min(55vh, 520px); }

/* ---------- Spec strip (Oswald engineering motif) ---------- */
.spec-strip {
  background: var(--ink);
  color: var(--alabaster);
  padding: 1.1rem 0;
}
.spec-strip ul {
  list-style: none; margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem);
  max-width: var(--container-wide);
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center;
  gap: 0.75rem 0;
}
.spec-strip li {
  font-family: var(--font-tech); font-weight: 400; font-size: 0.85rem;
  letter-spacing: 0.18em; text-transform: uppercase; white-space: nowrap;
}
.spec-strip li + li::before { content: "/"; color: var(--bronze); margin: 0 1.4rem; }
@media (max-width: 719px) {
  .spec-strip ul { flex-direction: column; align-items: center; gap: 0.55rem; }
  .spec-strip li + li::before { content: none; }
}

/* ---------- Editorial two-column ---------- */
.editorial { display: grid; grid-template-columns: 1fr; gap: clamp(2rem, 4vw, 4.5rem); align-items: center; }
@media (min-width: 900px) {
  .editorial { grid-template-columns: 1.05fr 0.95fr; }
  .editorial.flip .editorial-media { order: 2; }
  .editorial.flip .editorial-copy { order: 1; }
}
.editorial-media img { width: 100%; box-shadow: var(--shadow); }
.editorial-copy .btn { margin-top: 0.75rem; }

/* Spec list inside copy blocks */
.spec-list { list-style: none; padding: 0; margin: 1.5rem 0; border-top: 1px solid var(--steel-dim); }
.spec-list li {
  display: flex; justify-content: space-between; gap: 1.5rem;
  padding: 0.8rem 0; border-bottom: 1px solid var(--steel-dim);
  font-size: 0.98rem;
}
.spec-list .spec-value {
  font-family: var(--font-tech); font-weight: 500; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--ink); text-align: right; white-space: nowrap;
}
.theme-dark .spec-list, .on-dark .spec-list { border-color: rgba(169, 171, 168, 0.3); }
.theme-dark .spec-list li, .on-dark .spec-list li { border-color: rgba(169, 171, 168, 0.3); }
.theme-dark .spec-list .spec-value, .on-dark .spec-list .spec-value { color: var(--alabaster); }

/* ---------- Pull quote ---------- */
.pullquote {
  border-top: 1px solid var(--bronze);
  border-bottom: 1px solid var(--bronze);
  padding: clamp(2rem, 4vw, 3rem) 0;
  margin: 0;
  text-align: center;
}
.pullquote p {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3.2vw, 2.4rem);
  line-height: 1.3;
  color: var(--ink);
  max-width: 26em;
  margin: 0 auto;
}
.pullquote cite {
  display: block; margin-top: 1.2rem; font-style: normal;
  font-family: var(--font-tech); font-size: 0.8rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--bronze-text);
}
.theme-dark .pullquote p { color: var(--alabaster); }
.theme-dark .pullquote cite { color: var(--bronze); }

/* ---------- Stats / credibility ---------- */
.stat-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 2rem; text-align: center; }
@media (min-width: 720px) { .stat-row { grid-template-columns: repeat(4, 1fr); } }
.stat-value {
  font-family: var(--font-tech); font-weight: 500;
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  letter-spacing: 0.04em; color: var(--ink); line-height: 1.1;
}
.stat-value sup { font-size: 0.5em; }
.stat-label {
  font-family: var(--font-tech); font-weight: 400; font-size: 0.8rem;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--graphite);
  margin-top: 0.5rem;
}
.on-dark .stat-value, .theme-dark .stat-value { color: var(--alabaster); }
.on-dark .stat-label, .theme-dark .stat-label { color: var(--steel); }

/* ---------- Cards ---------- */
.card-grid { display: grid; gap: 2rem; grid-template-columns: 1fr; }
@media (min-width: 680px) { .card-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .card-grid { grid-template-columns: repeat(3, 1fr); } }
.card {
  background: #fff;
  border: 1px solid var(--steel-dim);
  display: flex; flex-direction: column;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}
.card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
@media (prefers-reduced-motion: reduce) { .card:hover { transform: none; } }
.card-media img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
.card-body { padding: 1.5rem 1.5rem 1.75rem; display: flex; flex-direction: column; flex: 1; }
.card-body .eyebrow { margin-bottom: 0.6rem; font-size: 0.72rem; }
.card-title { font-size: 1.35rem; margin-bottom: 0.5rem; }
.card-title a { text-decoration: none; color: var(--ink); }
.card-title a:hover { color: var(--bronze-text); }
.card-title a::after { content: ""; position: absolute; inset: 0; }
.card { position: relative; }
.card-excerpt { font-size: 0.98rem; margin-bottom: 1rem; }
.card-more {
  margin-top: auto;
  font-family: var(--font-tech); font-size: 0.78rem; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--bronze-text);
}

/* ---------- Gallery ---------- */
.gallery-grid { display: grid; gap: 1.5rem; grid-template-columns: 1fr; }
@media (min-width: 680px) { .gallery-grid { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .gallery-grid { grid-template-columns: repeat(3, 1fr); } }
.gallery-item { margin: 0; position: relative; overflow: hidden; }
.gallery-item img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; transition: transform 0.4s ease; }
.gallery-item:hover img { transform: scale(1.03); }
@media (prefers-reduced-motion: reduce) { .gallery-item:hover img { transform: none; } }
.gallery-item figcaption {
  position: absolute; inset: auto 0 0 0;
  padding: 2.2rem 1.1rem 0.9rem;
  background: linear-gradient(to top, rgba(20, 18, 15, 0.75), transparent);
  color: var(--alabaster);
  font-family: var(--font-tech); font-size: 0.75rem; font-weight: 400;
  letter-spacing: 0.16em; text-transform: uppercase;
}
.gallery-item.tall img { aspect-ratio: 3 / 4; }
.gallery-item.wide { grid-column: 1 / -1; }
.gallery-item.wide img { aspect-ratio: 21 / 9; }
@media (max-width: 679px) { .gallery-item.wide img { aspect-ratio: 16 / 10; } }

/* ---------- Process steps ---------- */
.steps { list-style: none; margin: 0; padding: 0; counter-reset: step; }
.steps > li {
  counter-increment: step;
  display: grid; grid-template-columns: auto 1fr; gap: 1.5rem 2rem;
  padding: clamp(1.75rem, 3vw, 2.5rem) 0;
  border-top: 1px solid var(--steel-dim);
}
.steps > li:last-child { border-bottom: 1px solid var(--steel-dim); }
.step-num {
  font-family: var(--font-tech); font-weight: 500;
  font-size: clamp(1.9rem, 3.5vw, 2.6rem); line-height: 1;
  color: var(--bronze); min-width: 2.2em;
}
.step-num::before { content: "0" counter(step); }
.steps h3 { margin-top: 0.1em; }
.steps p:last-child { margin-bottom: 0; }
@media (max-width: 599px) { .steps > li { grid-template-columns: 1fr; gap: 0.5rem; } }

/* ---------- FAQ ---------- */
.faq { border-top: 1px solid var(--steel-dim); }
.theme-dark .faq { border-color: rgba(169, 171, 168, 0.3); }
.faq details { border-bottom: 1px solid var(--steel-dim); }
.theme-dark .faq details { border-color: rgba(169, 171, 168, 0.3); }
.faq summary {
  cursor: pointer;
  list-style: none;
  display: flex; justify-content: space-between; align-items: baseline; gap: 1.5rem;
  padding: 1.25rem 0;
  font-family: var(--font-sans); font-weight: 600; font-size: 1.08rem;
  color: var(--ink);
}
.theme-dark .faq summary { color: var(--alabaster); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-family: var(--font-tech); color: var(--bronze);
  font-size: 1.3rem; line-height: 1; flex-shrink: 0;
}
.faq details[open] summary::after { content: "–"; }
.faq .faq-answer { padding: 0 0 1.5rem; max-width: 60em; }
.faq .faq-answer p:last-child { margin-bottom: 0; }

/* ---------- Dark theme sections ---------- */
.theme-dark, .on-dark {
  background: var(--ink);
  color: var(--steel-dim);
}
.theme-dark h1, .theme-dark h2, .theme-dark h3, .theme-dark h4,
.on-dark h1, .on-dark h2, .on-dark h3, .on-dark h4 { color: var(--alabaster); }
.theme-dark a:not(.btn), .on-dark a:not(.btn) { color: var(--alabaster); }
.theme-dark a:not(.btn):hover, .on-dark a:not(.btn):hover { color: var(--bronze); }
.theme-dark strong, .on-dark strong { color: var(--alabaster); }
/* Bunker page: dark ground behind the whole main flow */
.page-bunker { background: var(--ink); }
.page-bunker main { background: var(--ink); color: var(--steel-dim); }

/* ---------- CTA band ---------- */
.cta-band { background: var(--ink); color: var(--steel-dim); text-align: center; }
.cta-band h2 { color: var(--alabaster); }
.cta-band .cta-phone {
  font-family: var(--font-tech); font-weight: 500;
  font-size: clamp(1.5rem, 3.4vw, 2.3rem); letter-spacing: 0.06em;
  color: var(--alabaster); text-decoration: none; display: inline-block; margin: 0.5rem 0 1.5rem;
}
.cta-band .cta-phone:hover { color: var(--bronze); }
.cta-band .btn { margin: 0 0.5rem 0.5rem; }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 1.4rem; grid-template-columns: 1fr; }
@media (min-width: 680px) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-field-full { grid-column: 1 / -1; }
}
.form-field label {
  display: block;
  font-family: var(--font-tech); font-size: 0.78rem; font-weight: 500;
  letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink); margin-bottom: 0.45rem;
}
.form-field .optional { color: var(--graphite); font-weight: 400; letter-spacing: 0.1em; }
.form-field input, .form-field textarea, .form-field select {
  width: 100%;
  font-family: var(--font-sans); font-size: 1rem; color: var(--ink);
  background: #fff;
  border: 1px solid var(--steel);
  padding: 0.85rem 1rem;
  transition: border-color 0.15s ease;
}
.form-field input:focus, .form-field textarea:focus, .form-field select:focus {
  outline: 2px solid var(--bronze); outline-offset: 0; border-color: var(--bronze);
}
.form-field textarea { min-height: 160px; resize: vertical; }
.form-field.has-error input, .form-field.has-error textarea { border-color: var(--error); }
.field-error { display: none; color: var(--error); font-size: 0.88rem; margin-top: 0.4rem; }
.form-field.has-error .field-error { display: block; }
.form-note { font-size: 0.92rem; color: var(--graphite); margin-top: 1.25rem; }
.form-status { display: none; padding: 1.1rem 1.3rem; margin-top: 1.5rem; font-size: 0.98rem; }
.form-status.error { display: block; background: #F4E5E1; color: var(--error); border: 1px solid var(--error); }
.form-status.success { display: block; background: var(--alabaster-dim); color: var(--ink); border: 1px solid var(--bronze); }

/* ---------- Article layout ---------- */
.article-hero { padding-top: clamp(3rem, 7vw, 5rem); }
.article-meta {
  font-family: var(--font-tech); font-size: 0.78rem; font-weight: 400;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--graphite);
  margin-bottom: 1rem;
}
.article-body { max-width: 46em; }
.article-body h2 { font-size: clamp(1.6rem, 2.8vw, 2.1rem); margin-top: 1.8em; }
.article-body h3 { margin-top: 1.6em; }
.article-body img { margin: 2rem 0; box-shadow: var(--shadow); }
.article-body blockquote {
  margin: 2rem 0; padding: 0.25rem 0 0.25rem 1.5rem;
  border-left: 2px solid var(--bronze);
  font-family: var(--font-serif); font-size: 1.25rem; color: var(--ink);
}
.article-footer-cta {
  margin-top: 3rem; padding: 2rem;
  background: var(--alabaster-dim); border: 1px solid var(--steel-dim);
}
.article-footer-cta h2 { font-size: 1.6rem; margin-top: 0; }
.article-footer-cta p:last-of-type { margin-bottom: 1.4rem; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: var(--steel); margin-top: 0; }
.footer-inner {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 5rem) clamp(1.25rem, 4vw, 2.5rem) 2.5rem;
  display: grid; gap: 2.5rem;
  grid-template-columns: 1fr;
}
@media (min-width: 720px) { .footer-inner { grid-template-columns: 1fr 1fr; } }
@media (min-width: 1100px) { .footer-inner { grid-template-columns: 1.3fr 0.8fr 1.1fr 1fr; } }
.footer-brand .brand-lockup {
  display: inline-flex; flex-direction: column; align-items: center;
  margin-bottom: 1.5rem;
}
.footer-brand img { width: 190px; margin-bottom: 1.2rem; }
.footer-tagline {
  font-family: var(--font-tech); font-weight: 400; font-size: 0.85rem;
  letter-spacing: 0.22em; color: var(--alabaster); margin: 0;
  white-space: nowrap;
}
.footer-heading {
  font-family: var(--font-tech); font-weight: 500; font-size: 0.8rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--bronze);
  margin: 0 0 1.1rem;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 0.55rem; }
.site-footer a { color: var(--steel-dim); text-decoration: none; font-size: 0.95rem; }
.site-footer a:hover { color: var(--bronze); }
.footer-contact p { font-size: 0.95rem; margin-bottom: 0.55rem; }
.footer-legal { border-top: 1px solid rgba(169, 171, 168, 0.25); }
.footer-legal p {
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: 1.4rem clamp(1.25rem, 4vw, 2.5rem);
  font-size: 0.85rem; color: var(--steel);
}

/* ---------- Hero video ---------- */
.hero-video { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }

/* ---------- Press strip ---------- */
.press-strip { background: var(--ink); padding: 2.2rem 0 2.6rem; text-align: center; }
.press-strip .press-label {
  font-family: var(--font-tech); font-size: 0.72rem; font-weight: 500;
  letter-spacing: 0.26em; text-transform: uppercase; color: var(--bronze);
  display: block; margin-bottom: 1rem;
}
.press-strip ul {
  list-style: none; margin: 0 auto; padding: 0 clamp(1.25rem, 4vw, 2.5rem);
  max-width: var(--container-wide);
  display: flex; flex-wrap: wrap; justify-content: center; align-items: center; gap: 0.75rem 0;
}
.press-strip li {
  font-family: var(--font-tech); font-weight: 400; font-size: 1rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--alabaster); white-space: nowrap;
}
.press-strip li + li::before { content: "/"; color: var(--bronze); margin: 0 1.5rem; }
@media (max-width: 719px) {
  .press-strip ul { flex-direction: column; gap: 0.6rem; }
  .press-strip li + li::before { content: none; }
}
.press-strip .press-link { display: inline-block; margin-top: 1.2rem; }

/* ---------- Video embeds ---------- */
.yt-facade {
  position: relative; display: block; width: 100%; aspect-ratio: 16 / 9;
  padding: 0; border: 0; cursor: pointer; overflow: hidden; background: var(--ink);
}
.yt-facade img { width: 100%; height: 100%; object-fit: cover; opacity: 0.92; transition: opacity 0.25s ease, transform 0.4s ease; }
.yt-facade:hover img, .yt-facade:focus-visible img { opacity: 1; transform: scale(1.02); }
.yt-facade::after {
  content: ""; position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%);
  width: 74px; height: 74px; background: var(--bronze);
  clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 100%, 0% 0%);
  /* circle + triangle drawn via layered pseudo isn't possible; use a simple round badge */
  clip-path: none; border-radius: 50%;
  background-image: linear-gradient(0deg, transparent, transparent);
}
.yt-facade::before {
  content: ""; position: absolute; top: 50%; left: 50%; z-index: 1;
  transform: translate(-38%, -50%);
  border-style: solid; border-width: 14px 0 14px 24px;
  border-color: transparent transparent transparent var(--ink);
}
.yt-facade:hover::after { background: var(--alabaster); }
.video-card { background: transparent; }
.video-card .video-title { font-size: 1.3rem; margin: 1.1rem 0 0.3rem; }
.video-card .video-meta {
  font-family: var(--font-tech); font-size: 0.75rem; font-weight: 500;
  letter-spacing: 0.18em; text-transform: uppercase; color: var(--bronze-text);
}
.theme-dark .video-card .video-meta, .on-dark .video-card .video-meta { color: var(--bronze); }
.video-grid { display: grid; gap: 2.5rem 2rem; grid-template-columns: 1fr; }
@media (min-width: 900px) { .video-grid { grid-template-columns: 1fr 1fr; } }
.video-frame video { width: 100%; height: auto; display: block; box-shadow: var(--shadow); }
.video-embed-frame { aspect-ratio: 16 / 9; width: 100%; }
.video-embed-frame iframe { width: 100%; height: 100%; border: 0; display: block; }

/* ---------- Spec panel (engineering graphic) ---------- */
.spec-panel {
  border: 1px solid rgba(169, 171, 168, 0.3);
  padding: clamp(2rem, 4vw, 3.5rem);
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 2.5rem 1.5rem; text-align: center;
}
@media (min-width: 900px) { .spec-panel { grid-template-columns: repeat(4, 1fr); } }
.spec-panel .spec-big {
  font-family: var(--font-tech); font-weight: 500;
  font-size: clamp(2.4rem, 5vw, 3.8rem); line-height: 1;
  color: var(--alabaster);
}
.spec-panel .spec-big .unit { font-size: 0.45em; color: var(--bronze); }
.spec-panel .spec-caption {
  font-family: var(--font-tech); font-weight: 400; font-size: 0.75rem;
  letter-spacing: 0.2em; text-transform: uppercase; color: var(--steel); margin-top: 0.6rem;
}

/* ---------- Map figure ---------- */
.map-figure { margin: 0; }
.map-figure img { width: 100%; box-shadow: var(--shadow); }
.map-figure figcaption {
  font-family: var(--font-tech); font-size: 0.75rem; font-weight: 400;
  letter-spacing: 0.16em; text-transform: uppercase; color: var(--graphite);
  margin-top: 0.9rem;
}

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in-view { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
}