/* Base styles: premium black/white/grey industrial theme */
@import url("https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;0,9..40,700;1,9..40,300&family=Montserrat:wght@400;500;600;700&display=swap");

:root {
  /* Core palette — dominant black, white text, grey depth */
  --color-bg: #0a0a0a;
  --color-surface: #111111;
  --color-surface-warm: #161616;
  --color-surface-raised: #1c1c1c;
  --color-text: #f0eeea;
  --color-text-light: #9a9794;
  --color-muted: #5c5a57;
  --color-line: #252525;
  --color-line-light: #1e1e1e;

  /* Accent: restrained cool white-grey highlights */
  --color-accent: #c8c4bc;
  --color-accent-light: #1f1f1f;
  --color-accent-dark: #e8e5df;

  /* Functional aliases kept from original — remapped to new palette */
  --color-sage: #d0cdc7;
  --color-sage-light: #181818;
  --color-clay: #8a8580;

  /* Shadows — deep, rich, dark */
  --shadow-sm: 0 1px 4px rgba(0, 0, 0, 0.5), 0 3px 10px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.6), 0 12px 36px rgba(0, 0, 0, 0.4);
  --shadow-soft: 0 8px 40px rgba(0, 0, 0, 0.7);

  --radius: 6px;
  --radius-lg: 8px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  overflow-x: hidden;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family:
    "DM Sans",
    -apple-system,
    BlinkMacSystemFont,
    sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

main {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

/* ── Header & Navigation ── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(10, 10, 10, 0.94);
  border-bottom: 1px solid var(--color-line);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.navbar {
  width: min(1120px, calc(100% - 32px));
  min-height: 72px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--color-text);
  letter-spacing: 0;
  text-decoration: none;
  transition: opacity 200ms ease;
}

.brand-text {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
  line-height: 1.05;
}

.brand-main {
  font-family: "Amasis MT Pro", Amasis, Georgia, serif;
  font-size: 1.26rem;
  font-weight: 700;
  color: var(--color-text);
}

.brand-support {
  margin-top: 3px;
  font-family: "Montserrat", sans-serif;
  font-size: 0.58rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-text-light);
  white-space: nowrap;
}

.brand-mark {
  width: 58px;
  min-width: 58px;
  height: 58px;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 2px 8px rgba(255, 255, 255, 0.08));
}

.brand:hover {
  opacity: 0.7;
}

.nav-links {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 14px;
  border-radius: var(--radius);
  color: var(--color-text-light);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: all 180ms ease;
}

.nav-dropdown-toggle {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  border: 0;
  border-radius: var(--radius);
  padding: 0 14px;
  background: transparent;
  color: var(--color-text-light);
  font: inherit;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: all 180ms ease;
}

.nav-toggle {
  display: none;
  width: 48px;
  height: 48px;
  flex: 0 0 auto;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
}

.nav-toggle span[aria-hidden="true"],
.nav-toggle span[aria-hidden="true"]::before,
.nav-toggle span[aria-hidden="true"]::after {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.nav-toggle span[aria-hidden="true"] {
  position: relative;
}

.nav-toggle span[aria-hidden="true"]::before,
.nav-toggle span[aria-hidden="true"]::after {
  content: "";
  position: absolute;
  left: 0;
}

.nav-toggle span[aria-hidden="true"]::before {
  transform: translateY(-7px);
}

.nav-toggle span[aria-hidden="true"]::after {
  transform: translateY(7px);
}

.navbar.nav-open .nav-toggle span[aria-hidden="true"] {
  background: transparent;
}

.navbar.nav-open .nav-toggle span[aria-hidden="true"]::before {
  transform: rotate(45deg);
}

.navbar.nav-open .nav-toggle span[aria-hidden="true"]::after {
  transform: rotate(-45deg);
}

.nav-dropdown-toggle::after {
  content: "";
  width: 0.4em;
  height: 0.4em;
  margin-left: 0.5em;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: translateY(-2px) rotate(45deg);
  transition: transform 200ms ease;
}

.nav-dropdown:hover .nav-dropdown-toggle,
.nav-dropdown.is-open .nav-dropdown-toggle,
.nav-links a:hover {
  background: var(--color-surface-raised);
  color: var(--color-text);
}

.nav-dropdown.is-open .nav-dropdown-toggle::after,
.nav-dropdown:hover .nav-dropdown-toggle::after {
  transform: translateY(1px) rotate(225deg);
}

.nav-links a.active,
.nav-dropdown-toggle.active {
  background: var(--color-text);
  color: var(--color-bg);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 30;
  width: max-content;
  min-width: 200px;
  margin: 0;
  padding: 6px;
  list-style: none;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(6px);
  transition:
    opacity 160ms ease,
    transform 160ms ease,
    visibility 160ms ease;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown.is-open .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-menu a {
  width: 100%;
  justify-content: flex-start;
  border-radius: 4px;
  font-size: 0.88rem;
}

/* ── Typography ── */
h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 780px;
  font-family: "Futura-CondensedExtraBold", "Arial Black", sans-serif;
  font-size: clamp(1.8rem, 4vw, 3.5rem);
  line-height: 1.07;
  margin-bottom: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

h2 {
  font-family: "Futura-CondensedExtraBold", "Arial Black", sans-serif;
  font-size: clamp(1.7rem, 3vw, 2.45rem);
  line-height: 1.12;
  margin-bottom: 22px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
}

h3 {
  font-family: "Futura-CondensedExtraBold", "Arial Black", sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 12px;
  color: var(--color-text);
}

h4 {
  font-family: "Futura-CondensedExtraBold", "Arial Black", sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  margin: 0 0 12px 0;
  color: var(--color-text);
}

p {
  color: var(--color-text-light);
  margin-bottom: 16px;
  overflow-wrap: anywhere;
}

.eyebrow {
  margin-bottom: 14px;
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: "Montserrat", sans-serif;
}

/* ── Page Sections ── */
.hero {
  min-height: calc(100vh - 72px);
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(320px, 0.92fr);
  align-items: center;
  gap: 44px;
  padding: 72px 0;
}

.hero-copy p:not(.eyebrow),
.page-hero p {
  max-width: 640px;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.page-hero {
  padding: 84px 0 42px;
  border-bottom: 1px solid var(--color-line);
}

.split-section,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr);
  gap: 36px;
  align-items: center;
  padding: 72px 0;
}

.details-section {
  padding: 12px 0 72px;
}

.values {
  padding: 24px 0 84px;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 28px;
}

.hub-grid,
.subpage-grid,
.value-grid,
.feature-grid,
.detail-grid,
.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1px;
}

/* Grid gap override — use border instead for industrial seam look */
.hub-grid {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  padding: 48px 0 84px;
  gap: 16px;
}

.subpage-grid {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 16px;
}

.hub-card {
  display: flex;
  min-height: 236px;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--color-line);
  border-top: 2px solid var(--color-accent);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease,
    background 220ms ease;
}

.hub-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-text);
  border-top-color: var(--color-text);
  background: var(--color-surface-warm);
  box-shadow: var(--shadow-md);
}

.hub-card h2,
.hub-card h3 {
  margin-bottom: 10px;
}

.hub-card p {
  margin-bottom: 0;
}

.hub-card .product-photo {
  width: 100%;
  min-height: 190px;
  aspect-ratio: 4 / 3;
  margin-bottom: 18px;
}

.content-panel {
  padding: 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
}

.content-panel p:last-child,
.content-panel ul:last-child,
.content-panel pre:last-child {
  margin-bottom: 0;
}

.content-panel h2,
.content-panel h3 {
  margin-top: 0;
}

.content-panel h2 + p,
.content-panel h3 + p {
  margin-top: 0;
}

.content-panel + .content-panel {
  margin-top: 16px;
}

.product-lede {
  padding: 48px 0 24px;
}

.product-copy {
  display: grid;
  gap: 16px;
  padding: 24px 0 84px;
}

.product-copy .content-panel {
  max-width: 900px;
}

.ascii-diagram.compact {
  margin: 22px 0;
}

.cta-band {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin: 24px 0 84px;
  padding: 28px 32px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface-warm);
}

.cta-band p {
  max-width: 640px;
  margin: 0;
  color: var(--color-text-light);
}

.feature-list {
  margin: 16px 0 0;
  padding-left: 1.35rem;
  color: var(--color-text-light);
}

.feature-list li {
  margin-bottom: 0.85rem;
  padding-left: 0.2rem;
  line-height: 1.6;
}

.feature-list li::marker {
  color: var(--color-accent);
}

.detail-grid {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

/* ── Product catalogue ── */
.product-index {
  padding: 48px 0 28px;
}

.product-index-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.product-overview-card {
  min-height: 240px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 0;
  padding: 24px;
  border: 1px solid var(--color-line);
  border-top: 2px solid var(--color-muted);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease,
    background 220ms ease;
}

.product-overview-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-text);
  border-top-color: var(--color-text);
  background: var(--color-surface-warm);
  box-shadow: var(--shadow-md);
}

.product-overview-card span {
  color: var(--color-text);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.product-overview-card span {
  display: block;
  margin-bottom: 12px;
}

.product-overview-card p {
  margin: auto 0 0;
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.55;
}

.product-detail {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.42fr);
  gap: 36px;
  align-items: start;
  padding: 56px 0;
  border-top: 1px solid var(--color-line);
}

.product-detail-copy {
  max-width: 780px;
}

.product-detail-copy h2 {
  max-width: 760px;
}

.product-detail-copy h3 {
  margin-top: 30px;
}

.product-detail-copy .button {
  margin-top: 18px;
}

.product-media {
  position: sticky;
  top: 104px;
}

.ascii-diagram {
  max-width: 100%;
  overflow-x: auto;
  margin: 28px 0;
  padding: 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface-warm);
  color: var(--color-text-light);
  font-family: "Montserrat", sans-serif;
  font-size: 0.82rem;
  line-height: 1.5;
  white-space: pre;
  -webkit-overflow-scrolling: touch;
}

.product-wrap {
  width: min(100%, 1000px);
}

.product-wrap img,
.product-copy img,
.image-showcase img,
.image-grid img,
.content-panel img {
  max-width: 100% !important;
  height: auto !important;
}

.product-copy .product-photo,
.image-showcase .product-photo,
.image-grid .product-photo,
.content-panel .product-photo {
  max-width: 100%;
}

.product-copy .product-photo[style],
.image-showcase .product-photo[style],
.image-grid .product-photo[style],
.content-panel .product-photo[style] {
  width: min(100%, 760px) !important;
  margin-left: auto !important;
  margin-right: auto !important;
}

.content-panel > div[style*="display: flex"] {
  display: grid !important;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px !important;
}

.back-to-top {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 20;
  min-width: 52px;
  min-height: 42px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: 999px;
  background: var(--color-surface-raised);
  color: var(--color-text-light);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  box-shadow: var(--shadow-md);
  transition:
    transform 200ms ease,
    background 200ms ease,
    border-color 200ms ease,
    color 200ms ease;
}

.back-to-top:hover {
  transform: translateY(-3px);
  background: var(--color-text);
  border-color: var(--color-text);
  color: var(--color-bg);
}

/* ── Image Placeholders ── */
.image-placeholder {
  min-height: 330px;
  display: grid;
  place-items: center;
  align-content: center;
  gap: 10px;
  border: 1px dashed var(--color-line);
  border-radius: var(--radius-lg);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.02), transparent 48%),
    var(--color-surface-warm);
  color: var(--color-text);
  text-align: center;
  transition: all 300ms ease;
}

.image-placeholder:hover {
  border-color: var(--color-muted);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.04), transparent 48%),
    var(--color-surface-raised);
}

.image-placeholder span {
  font-weight: 600;
  font-size: 0.95rem;
}

.image-placeholder small {
  color: var(--color-muted);
  font-size: 0.85rem;
}

/* ── Product Photos ── */
.product-photo {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.product-photo img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: contain;
  filter: grayscale(15%);
  transition: filter 300ms ease;
}

.product-photo:hover img {
  filter: grayscale(0%);
}

.product-photo figcaption {
  padding: 12px 16px;
  border-top: 1px solid var(--color-line);
  background: var(--color-surface-warm);
  color: var(--color-muted);
  font-size: 0.82rem;
  font-family: "Montserrat", sans-serif;
  text-align: center;
  letter-spacing: 0.03em;
}

.image-showcase,
.image-grid {
  display: grid;
  gap: 16px;
}

.image-showcase {
  padding: 24px 0 12px;
}

.image-grid {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  padding: 0 0 24px;
}

.image-grid .product-photo,
.image-showcase .product-photo {
  min-height: 320px;
  aspect-ratio: 4 / 3;
}

.image-grid.portrait .product-photo {
  aspect-ratio: 3 / 4;
}

.image-grid.mixed .product-photo {
  min-height: 360px;
}

.product-hero-photo {
  min-height: 520px;
  aspect-ratio: 16 / 9;
}

.product-photo.tall-photo {
  aspect-ratio: 3 / 4;
}

.content-panel .inline-photo {
  margin-top: 22px;
  min-height: 320px;
  aspect-ratio: 4 / 3;
}

.content-panel .flow-photo {
  margin: 24px 0;
  min-height: 320px;
  aspect-ratio: 4 / 3;
}

.content-panel .flow-photo:first-child {
  margin-top: 0;
}

.content-panel .flow-photo:last-child {
  margin-bottom: 0;
}

.text-with-media {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.68fr);
  gap: 24px;
  align-items: center;
}

.text-with-media .product-photo {
  min-height: 300px;
  aspect-ratio: 3 / 4;
}

.photo-pair,
.photo-triptych,
.compact-photo-row {
  display: grid;
  gap: 16px;
  margin: 24px 0;
}

.photo-pair {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.photo-triptych {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.photo-pair .product-photo,
.photo-triptych .product-photo {
  min-height: 300px;
  aspect-ratio: 4 / 3;
}

.compact-photo-row {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  max-width: 620px;
}

.compact-photo-row .product-photo,
.construction-prototypes .product-photo {
  min-height: 220px;
  aspect-ratio: 1 / 1;
}

.construction-prototypes {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
  width: min(100%, 560px);
  margin: 24px auto;
}

.construction-prototypes .product-photo {
  min-height: 150px;
}

.construction-prototype-group {
  width: min(100%, 560px);
  margin: 24px auto;
}

.construction-prototype-group .construction-prototypes {
  margin: 0;
}

.shared-caption {
  margin: 12px 0 0;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-family: "Montserrat", sans-serif;
  text-align: center;
  letter-spacing: 0.03em;
}

.framed-natural-photo {
  aspect-ratio: unset;
  min-height: 160px;
  border: none;
  background: none;
  box-shadow: none;
}

.framed-natural-photo img {
  width: min(100%, 50%);
  height: auto;
  object-fit: contain;
}

.framed-natural-photo.featured-founder img {
  width: min(100%, 66%);
}

.bespoke-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 300px));
  justify-content: center;
  gap: 16px;
  margin: 24px 0;
}

.bespoke-pair .product-photo {
  width: 100%;
  aspect-ratio: unset;
  min-height: 200px;
  border: none;
  background: none;
  box-shadow: none;
}

.bespoke-pair img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.article-embedded-photo {
  width: min(45%, 360px);
  margin: 20px auto;
  aspect-ratio: unset;
  min-height: unset;
}

.article-embedded-photo img {
  width: 100%;
  height: auto;
  object-fit: contain;
}

.balanced-photo {
  min-height: 360px;
  aspect-ratio: 4 / 3;
}

.content-split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(220px, 0.72fr);
  gap: 24px;
  align-items: center;
}

.content-split .product-photo {
  min-height: 360px;
  aspect-ratio: 3 / 4;
}

.product-hero-image {
  width: 30%;
  max-height: 520px;
}

.tall {
  min-height: 470px;
}

/* ── Cards ── */
.info-card,
.product-card,
.contact-form {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-sm);
  transition: all 280ms ease;
}

.info-card:hover,
.product-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-muted);
}

.info-card {
  padding: 28px;
  border-top: 2px solid var(--color-muted);
}

.info-card p {
  margin-bottom: 0;
}

.product-card {
  overflow: hidden;
}

.product-image {
  min-height: 260px;
  border-width: 0 0 1px;
  border-radius: 0;
}

.return-section,
.product-details {
  padding: 48px 0;
}

.product-photo.product-image {
  border-width: 0 0 1px;
  border-radius: 0;
  box-shadow: none;
}

.product-content {
  padding: 24px;
}

.product-content h2 {
  font-size: 1.2rem;
}

.price {
  margin: 20px 0;
  color: var(--color-text);
  font-weight: 700;
  font-size: 1rem;
  font-family: "Montserrat", sans-serif;
}

.product-features {
  margin: 18px 0 0;
  padding-left: 18px;
  color: var(--color-text-light);
  font-size: 0.9rem;
}

.product-features li + li {
  margin-top: 8px;
}

.spec-panel {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1fr);
  gap: 40px;
  align-items: start;
  margin-top: 40px;
  padding: 36px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.spec-list {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.spec-list div {
  padding: 18px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface-warm);
  transition: all 200ms ease;
}

.spec-list div:hover {
  border-color: var(--color-muted);
  background: var(--color-surface-raised);
}

.spec-list dt {
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
  font-family: "Montserrat", sans-serif;
}

.spec-list dd {
  margin: 0;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.92rem;
}

/* ── FAQ ── */
/* ── Buttons ── */
.button {
  min-height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 0 26px;
  font: inherit;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: all 240ms ease;
  text-decoration: none;
  user-select: none;
}

.button:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.button:active {
  transform: translateY(0);
}

.button.primary {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

.button.primary:hover {
  background: #ffffff;
  border-color: #ffffff;
  box-shadow: 0 8px 28px rgba(255, 255, 255, 0.12);
}

.button.secondary {
  background: transparent;
  color: var(--color-text-light);
  border-color: var(--color-line);
}

.button.secondary:hover {
  background: var(--color-surface-raised);
  border-color: var(--color-muted);
  color: var(--color-text);
}

.button:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  transform: none;
}

/* ── Contact Form ── */
.contact-form {
  padding: 32px;
  border-radius: var(--radius-lg);
}

.form-only {
  grid-template-columns: minmax(0, 720px);
  justify-content: start;
  padding-top: 48px;
}

.contact-details {
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid var(--color-line);
}

.contact-list {
  display: grid;
  gap: 0;
  margin: 0;
  list-style: none;
  padding: 8px 20px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  background: var(--color-surface-warm);
}

.contact-list div {
  display: grid;
  grid-template-columns: minmax(110px, 0.35fr) minmax(0, 1fr);
  gap: 18px;
  align-items: start;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-line-light);
}

.contact-list div:last-child {
  border-bottom: 0;
}

.contact-list dt {
  color: var(--color-muted);
  font-size: 0.72rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
  font-family: "Montserrat", sans-serif;
}

.contact-list dd {
  margin: 0;
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.9rem;
  min-width: 0;
  overflow-wrap: anywhere;
}

.contact-list a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
  transition: color 200ms ease;
  overflow-wrap: anywhere;
}

.contact-list a:hover {
  color: var(--color-text);
}

.form-field {
  margin-bottom: 22px;
}

label {
  display: block;
  margin-bottom: 9px;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.02em;
  color: var(--color-text);
}

.required-note {
  margin-bottom: 20px;
  font-size: 0.88rem;
  color: var(--color-text-light);
}

.required-marker {
  color: #e05c5c;
  font-weight: 700;
}

.optional-label {
  margin-left: 6px;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 400;
}

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

.map-section {
  padding: 0 0 84px;
}

.map-frame {
  overflow: hidden;
  min-height: 360px;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.map-frame iframe {
  width: 100%;
  height: 420px;
  display: block;
  border: 0;
  filter: invert(90%) hue-rotate(180deg) brightness(0.85) contrast(0.9);
}

input,
textarea,
select {
  width: 100%;
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  padding: 13px 15px;
  background: var(--color-surface-warm);
  color: var(--color-text);
  font: inherit;
  font-size: 0.96rem;
  transition: all 180ms ease;
}

input[type="file"] {
  padding: 12px 14px;
}

.field-gap {
  display: grid;
  gap: 20px;
}

@media (max-width: 820px) {
  .contact-list {
    grid-template-columns: 1fr;
  }
}

input::placeholder,
textarea::placeholder {
  color: var(--color-muted);
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--color-muted);
  background: var(--color-surface-raised);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.04);
}

input:invalid:not(:placeholder-shown),
textarea:invalid:not(:placeholder-shown) {
  border-color: #e05c5c;
}

.error-message {
  min-height: 20px;
  display: block;
  margin-top: 8px;
  color: #e05c5c;
  font-size: 0.84rem;
  font-weight: 500;
}

.form-status,
.order-status {
  min-height: 24px;
  margin-top: 20px;
  color: var(--color-text);
  font-weight: 600;
  font-size: 0.9rem;
}

.order-status {
  text-align: center;
  margin-bottom: 72px;
}

/* ── Animation hook ── */
.fade-section {
  opacity: 0;
  transform: translateY(20px);
  transition:
    opacity 580ms cubic-bezier(0.4, 0, 0.2, 1),
    transform 580ms cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-section.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── CTA Section ── */
.cta-section {
  text-align: center;
  padding: 80px 0;
  background: var(--color-surface);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  margin: 60px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at 50% 0%,
    rgba(255, 255, 255, 0.03) 0%,
    transparent 70%
  );
  pointer-events: none;
}

.cta-section h2 {
  max-width: 600px;
  margin: 0 auto 16px;
}

.cta-section p {
  max-width: 600px;
  margin: 0 auto 32px;
  font-size: 1.05rem;
}

/* ── Footer ── */
.site-footer {
  border-top: 1px solid var(--color-line);
  padding: 60px 16px 32px;
  background: var(--color-surface);
  color: var(--color-text);
}

.footer-content {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto 40px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 48px;
}

.footer-section h3,
.footer-section h4 {
  margin-bottom: 14px;
  color: var(--color-text);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: "Montserrat", sans-serif;
}

.footer-section p {
  font-size: 0.9rem;
  line-height: 1.65;
  margin-bottom: 0;
  color: var(--color-text-light);
}

.footer-section ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 10px;
  font-size: 0.9rem;
}

.footer-section ul li a {
  color: var(--color-text-light);
  text-decoration: none;
  transition: color 180ms ease;
}

.footer-section ul li a:hover {
  color: var(--color-text);
}

.footer-section ul li:not(a) {
  color: var(--color-text-light);
}

.footer-copyright {
  text-align: center;
  font-size: 0.82rem;
  color: var(--color-muted);
  margin: 0;
  padding-top: 24px;
  border-top: 1px solid var(--color-line);
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  font-family: "Montserrat", sans-serif;
  letter-spacing: 0.02em;
}

/* ── Responsive ── */
@media (max-width: 820px) {
  .navbar {
    min-height: 72px;
    padding: 10px 0;
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links {
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 6px;
    padding: 12px 0 4px;
  }

  .navbar.nav-open .nav-links {
    display: flex;
  }

  .nav-links li,
  .nav-links a,
  .nav-dropdown-toggle {
    width: 100%;
  }

  .nav-links a {
    justify-content: flex-start;
    min-height: 48px;
    padding: 0 14px;
    font-size: 0.86rem;
  }

  .nav-dropdown-toggle {
    justify-content: space-between;
    min-height: 48px;
    padding: 0 14px;
    font-size: 0.86rem;
  }

  .nav-dropdown-menu {
    position: static;
    width: 100%;
    min-width: 0;
    margin-top: 6px;
    opacity: 1;
    visibility: visible;
    transform: none;
    display: none;
    box-shadow: none;
  }

  .nav-dropdown.is-open .nav-dropdown-menu {
    display: block;
  }

  .hero,
  .split-section,
  .content-split,
  .text-with-media,
  .contact-layout,
  .product-detail,
  .hub-grid,
  .subpage-grid,
  .value-grid,
  .detail-grid,
  .spec-panel,
  .product-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding: 56px 0;
  }

  .content-panel > div[style*="display: flex"] {
    grid-template-columns: 1fr;
  }

  .hero-image,
  .image-placeholder,
  .product-hero-photo,
  .image-grid .product-photo,
  .image-showcase .product-photo,
  .tall {
    min-height: 300px;
  }

  .page-hero {
    padding-top: 56px;
  }

  .map-frame,
  .map-frame iframe {
    min-height: 340px;
    height: 340px;
  }

  .spec-list {
    grid-template-columns: 1fr;
  }

  .product-media {
    position: static;
    order: -1;
  }

  .photo-pair,
  .photo-triptych,
  .compact-photo-row,
  .construction-prototypes,
  .bespoke-pair {
    grid-template-columns: 1fr;
    max-width: none;
  }

  .construction-prototype-group,
  .construction-prototypes {
    width: min(100%, 360px);
  }

  .framed-natural-photo img,
  .framed-natural-photo.featured-founder img,
  .article-embedded-photo {
    width: 100%;
  }

  .bespoke-pair .product-photo {
    width: 100%;
  }

  .contact-list {
    grid-template-columns: 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .cta-section {
    padding: 48px 24px;
  }

  .hero-img,
  .split-img,
  .lifestyle-img {
    width: 100% !important;
  }

  .footer-section a {
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
}

@media (max-width: 520px) {
  main,
  .navbar {
    width: min(100% - 24px, 1120px);
  }

  .brand {
    font-size: 0.95rem;
  }

  .brand-mark {
    width: 52px;
    height: 52px;
  }

  .nav-links a {
    min-height: 48px;
    padding: 0 12px;
    font-size: 0.82rem;
  }

  .nav-dropdown-toggle {
    min-height: 48px;
    padding: 0 12px;
    font-size: 0.82rem;
  }

  h1 {
    font-size: 1.8rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  .hero-actions,
  .button {
    width: 100%;
  }

  .button {
    min-height: 44px;
    padding: 0 20px;
  }

  .contact-form {
    padding: 20px;
  }

  .contact-list {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 6px 14px;
  }

  .contact-list div {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 14px 0;
  }

  .footer-content {
    gap: 24px;
  }

  .footer-section h3,
  .footer-section h4 {
    font-size: 0.72rem;
  }

  .footer-section ul li {
    font-size: 0.86rem;
  }

  .detail-grid {
    grid-template-columns: 1fr;
  }

  .product-index-grid {
    grid-template-columns: 1fr;
  }

  .product-overview-card {
    min-height: auto;
  }

  .product-detail {
    padding: 44px 0;
  }

  .ascii-diagram {
    padding: 14px;
    font-size: clamp(0.62rem, 2.75vw, 0.72rem);
  }

  .back-to-top {
    right: 14px;
    bottom: 14px;
    min-width: 48px;
    min-height: 40px;
  }

  .cta-section {
    padding: 36px 16px;
    margin: 40px 0;
  }

  .cta-section h2 {
    font-size: 1.5rem;
  }
}

/* ── Selection ── */
::selection {
  background: rgba(255, 255, 255, 0.15);
  color: #ffffff;
}

/* ── Scrollbar ── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg);
}

::-webkit-scrollbar-thumb {
  background: var(--color-surface-raised);
  border-radius: 999px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-muted);
}