:root {
  color-scheme: light;
  --paper: #ffffff;
  --ink: #242424;
  --muted: #595959;
  --accent: #3d3d3d;
  --line: #e1e1e1;
  --panel: #f5f5f5;
  --serif: Georgia, "Times New Roman", serif;
  --gutter: clamp(1.25rem, 4.5vw, 3rem);
}

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 1rem/1.6 system-ui, -apple-system, sans-serif;
}

a { color: inherit; }

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 5px;
}

h1, h2, h3, p { margin: 0; }

section[id] { scroll-margin-top: 1.5rem; }

.container {
  width: min(calc(100% - 2 * var(--gutter)), 72.5rem);
  margin-inline: auto;
}

.site-header { border-bottom: 1px solid var(--line); }

.header-inner {
  display: flex;
  min-height: 4.75rem;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.wordmark {
  display: inline-flex;
  align-items: center;
  gap: .625rem;
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -.045em;
  white-space: nowrap;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: .625rem;
  background: var(--ink);
  color: #ffffff;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: clamp(1rem, 3vw, 2rem);
  font-size: .875rem;
  font-weight: 600;
}

.site-nav a {
  padding-block: .625rem;
  white-space: nowrap;
  text-decoration: none;
}

.site-nav a:hover { text-decoration: underline; }

.hero, .product-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.27fr) minmax(0, 1fr);
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
  padding-block: clamp(3rem, 5vw, 4.75rem);
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: .625rem;
  color: var(--accent);
  font-size: .75rem;
  font-weight: 750;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 1.25rem;
  height: 1px;
  background: currentColor;
  content: "";
}

h1 {
  margin-top: 1.125rem;
  font-family: var(--serif);
  font-size: clamp(3rem, 4.55vw, 4.5rem);
  font-weight: 400;
  letter-spacing: -.06em;
  line-height: 1.05;
  text-wrap: balance;
}

h1 em {
  display: block;
  color: var(--accent);
  font-weight: inherit;
}

.hero-description {
  max-width: 28rem;
  margin-top: 1.25rem;
  color: var(--muted);
  font-size: 1.0625rem;
  line-height: 1.7;
}

.primary-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.75rem;
  padding: .825rem 1.125rem;
  border-radius: .5rem;
  background: var(--ink);
  color: #ffffff;
  font-size: .875rem;
  font-weight: 650;
  text-decoration: none;
}

.primary-link:hover { background: var(--accent); }

.primary-link svg { flex: none; }

.brief {
  padding: clamp(1.375rem, 3vw, 2rem);
  border: 1px solid #e1e1e1;
  border-radius: 1.375rem;
  background: var(--panel);
}

.brief h2, .process h2, .contact h2, .section-title {
  font-family: var(--serif);
  font-weight: 400;
  letter-spacing: -.045em;
  line-height: 1.13;
}

.brief h2 { font-size: clamp(1.875rem, 3vw, 2.375rem); }

.brief-intro {
  margin-top: .35rem;
  color: var(--muted);
  font-size: .875rem;
}

.brief-list {
  display: grid;
  gap: .5rem;
  margin: 1.25rem 0 0;
  padding: 0;
  list-style: none;
}

.brief-list li {
  display: flex;
  min-width: 0;
  align-items: center;
  gap: .75rem;
  padding: .75rem;
  border: 1px solid #e5e5e5;
  border-radius: .75rem;
  background: #ffffff;
}

.brief-icon {
  display: grid;
  width: 2.25rem;
  height: 2.25rem;
  flex: none;
  place-items: center;
  border-radius: .5rem;
  background: #eeeeee;
  color: var(--accent);
}

.brief-label { display: block; font-size: .875rem; }

.brief-detail {
  display: block;
  color: var(--muted);
  font-size: .8125rem;
  line-height: 1.45;
}

.process {
  padding-block: 2.25rem clamp(2.75rem, 6vw, 4.5rem);
  border-top: 1px solid var(--line);
}

.process h2 { font-size: 2.25rem; }

.steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem 2.5rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: start;
  gap: .75rem;
}

.step-number {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border: 1px solid #dfdfdf;
  border-radius: 50%;
  background: #f3f3f3;
  color: var(--accent);
  font-size: .6875rem;
  font-weight: 750;
}

.step h3 {
  margin-top: .18rem;
  font-size: 1rem;
  font-weight: 700;
}

.step p {
  margin-top: .25rem;
  color: var(--muted);
  font-size: .875rem;
}

.contact {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem 2rem;
  padding: clamp(1.5rem, 4vw, 2.75rem);
  border: 1px solid var(--line);
  border-radius: 1.125rem;
  background: var(--panel);
}

.contact h2 { font-size: clamp(1.875rem, 3.4vw, 2.75rem); }

.contact p {
  margin-top: .5rem;
  color: #595959;
  font-size: .9375rem;
}

.contact-address {
  display: grid;
  min-width: 0;
  gap: .15rem;
  padding: .75rem 1rem;
  border: 1px solid #d7d7d7;
  border-radius: .625rem;
  background: var(--paper);
  text-decoration: none;
}

.contact-address:hover strong { text-decoration: underline; }

.contact-address span {
  color: #595959;
  font-size: .75rem;
}

.contact-address strong {
  font-size: clamp(.9375rem, 3vw, 1.1875rem);
  font-weight: 650;
  overflow-wrap: anywhere;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: .25rem 1rem;
  padding-block: 1.5rem;
  color: var(--muted);
  font-size: .8125rem;
}

.categories, .inquiry {
  padding-block: 2.25rem clamp(3rem, 5vw, 4rem);
  border-top: 1px solid var(--line);
}

.section-title { font-size: 2.25rem; }

.section-intro {
  margin-top: .55rem;
  color: var(--muted);
  font-size: .9375rem;
}

.product-grid, .inquiry-list {
  display: grid;
  gap: 1rem;
  margin: 1.5rem 0 0;
  padding: 0;
  list-style: none;
}

.product-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.product-grid li {
  display: grid;
  min-width: 0;
}

.category-card {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: .875rem;
  text-decoration: none;
}

.category-card:hover {
  border-color: #9a9a9a;
}

.category-card:hover .card-link { text-decoration: underline; }

.category-art {
  display: grid;
  place-items: center;
  aspect-ratio: 1.75;
  padding: .5rem 1rem;
  background: var(--panel);
}

.gear-art {
  display: block;
  width: 100%;
  height: auto;
  color: #505050;
}

.gear-outline, .gear-mesh, .gear-fill {
  stroke-linecap: round;
  stroke-linejoin: round;
}

.gear-outline {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
}

.gear-mesh {
  fill: none;
  stroke: #a1a1a1;
  stroke-width: 1.15;
}

.gear-fill {
  fill: #e8e8e8;
  stroke: currentColor;
  stroke-width: 2;
}

.category-copy {
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: flex-start;
  padding: 1rem;
}

.category-copy h3 { font-size: 1rem; line-height: 1.4; }

.category-copy p {
  margin-top: .4rem;
  color: var(--muted);
  font-size: .875rem;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-top: auto;
  padding-top: 1rem;
  font-size: .8125rem;
  font-weight: 650;
}

.card-link svg, .back-link svg { flex: none; }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  margin-top: 1.75rem;
  color: var(--muted);
  font-size: .875rem;
  font-weight: 600;
  text-decoration: none;
}

.back-link:hover { text-decoration: underline; }

.product-hero { padding-block: 2rem clamp(3rem, 5vw, 4.25rem); }

.product-figure {
  display: grid;
  gap: .5rem;
  margin: 0;
  padding: clamp(1rem, 3vw, 1.75rem);
  border: 1px solid var(--line);
  border-radius: 1.125rem;
  background: var(--panel);
}

.product-figure figcaption {
  color: var(--muted);
  font-size: .8125rem;
}

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

.inquiry-list li {
  padding: 1rem 1.125rem;
  border: 1px solid var(--line);
  border-radius: .625rem;
}

.inquiry-list h3 { font-size: .9375rem; }

.inquiry-list p {
  margin-top: .25rem;
  color: var(--muted);
  font-size: .875rem;
}

@media (max-width: 62rem) {
  .product-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 52rem) {
  .hero, .product-hero { grid-template-columns: minmax(0, 1fr); }
  .brief, .product-figure { max-width: 34rem; }
}

@media (max-width: 38rem) {
  .header-inner {
    min-height: 4.125rem;
    flex-wrap: wrap;
    gap: .25rem .75rem;
    padding-block: .5rem;
  }
  .site-nav { flex-wrap: wrap; gap: 0 1rem; font-size: .8125rem; }
  .wordmark { gap: .5rem; font-size: 1.125rem; }
  .brand-mark { width: 1.75rem; height: 1.75rem; }
  .hero { padding-block: 3rem 2.5rem; }
  h1 { font-size: clamp(2.25rem, 10.4vw, 3.25rem); }
  .hero-description { font-size: 1rem; }
  .steps, .inquiry-list { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 30rem) {
  .product-grid { grid-template-columns: minmax(0, 1fr); }
}

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