:root {
  --ink: #0b0d0d;
  --ink-soft: #121615;
  --panel: #181c1a;
  --panel-light: #202522;
  --line: #323834;
  --muted: #929a95;
  --paper: #e8e4db;
  --paper-bright: #f4f1ea;
  --accent: #ca6b3b;
  --accent-light: #e58450;
  --max-width: 1440px;
  --gutter: clamp(1.25rem, 4vw, 4.5rem);
  --radius: 0.35rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  background: var(--ink);
}

body {
  margin: 0;
  color: var(--paper);
  background: var(--ink);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  -webkit-font-smoothing: antialiased;
}

body.menu-open {
  overflow: hidden;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

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

.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;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.8rem 1rem;
  color: var(--ink);
  background: var(--paper-bright);
  transform: translateY(-160%);
  transition: transform 180ms ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.announcement {
  min-height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  padding: 0.45rem var(--gutter);
  color: var(--ink);
  background: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.announcement-dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  width: 100%;
  height: 82px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 var(--gutter);
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--ink) 92%, transparent);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  width: max-content;
}

.brand-mark {
  width: 42px;
  height: 42px;
  color: var(--paper-bright);
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1;
  text-transform: uppercase;
}

.brand-copy strong {
  font-size: 0.9rem;
  letter-spacing: 0.055em;
}

.brand-copy span {
  margin-top: 0.3rem;
  color: var(--muted);
  font-size: 0.64rem;
  letter-spacing: 0.28em;
}

.primary-nav {
  display: flex;
  align-items: center;
  gap: 2.25rem;
  color: #bbc1bd;
  font-size: 0.76rem;
  font-weight: 650;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.primary-nav a,
.footer-links a {
  transition: color 180ms ease;
}

.primary-nav a:hover,
.primary-nav a:focus-visible,
.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--paper-bright);
}

.header-cta {
  justify-self: end;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  color: var(--paper);
  background: transparent;
}

.menu-toggle span:not(.sr-only) {
  display: block;
  width: 17px;
  height: 1px;
  margin: 5px auto;
  background: currentColor;
  transition: transform 180ms ease;
}

.button {
  min-height: 52px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.25rem;
  border: 1px solid var(--accent);
  border-radius: 2px;
  color: var(--paper-bright);
  background: var(--accent);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-align: center;
  text-transform: uppercase;
  transition: background 180ms ease, border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.button:hover,
.button:focus-visible {
  border-color: var(--accent-light);
  background: var(--accent-light);
  transform: translateY(-2px);
}

.button-small {
  min-height: 40px;
  padding-inline: 1rem;
  font-size: 0.64rem;
}

.button-light {
  border-color: var(--paper-bright);
  color: var(--ink);
  background: var(--paper-bright);
}

.button-light:hover,
.button-light:focus-visible {
  border-color: #fff;
  color: var(--ink);
  background: #fff;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  padding-bottom: 0.22rem;
  border-bottom: 1px solid #4b524e;
  color: var(--paper-bright);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  transition: border-color 180ms ease, color 180ms ease;
}

.text-link:hover,
.text-link:focus-visible {
  border-color: var(--accent-light);
  color: var(--accent-light);
}

.eyebrow {
  margin: 0 0 1.35rem;
  color: var(--accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.69rem;
  font-weight: 750;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero {
  position: relative;
  min-height: calc(100svh - 116px);
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.16;
  background-image:
    linear-gradient(to right, #5b635e 1px, transparent 1px),
    linear-gradient(to bottom, #5b635e 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: linear-gradient(to right, #000, transparent 60%);
}

.hero-copy {
  position: relative;
  z-index: 1;
  align-self: center;
  padding: clamp(5rem, 8vw, 9rem) var(--gutter);
}

.hero h1,
.section h2 {
  margin: 0;
  color: var(--paper-bright);
  font-size: clamp(3.7rem, 7vw, 8.3rem);
  font-weight: 620;
  letter-spacing: -0.068em;
  line-height: 0.9;
}

.hero h1 span {
  color: #747c77;
}

.hero-lede {
  max-width: 620px;
  margin: 2.1rem 0 0;
  color: #aab1ad;
  font-size: clamp(1rem, 1.4vw, 1.25rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  margin-top: 2.4rem;
}

.hero-facts {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  max-width: 580px;
  margin: clamp(3rem, 7vw, 7rem) 0 0;
}

.hero-facts div {
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.hero-facts dt {
  color: var(--paper-bright);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 1.2rem;
  font-weight: 750;
}

.hero-facts dd {
  margin: 0.5rem 0 0;
  color: var(--muted);
  font-size: 0.69rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-visual {
  position: relative;
  min-height: 720px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-left: 1px solid var(--line);
  background:
    radial-gradient(circle at 42% 40%, #242a27 0, #151917 36%, #0b0d0d 73%),
    var(--ink);
}

.hero-visual::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgb(255 255 255 / 0.025) 50%, transparent 68%);
  transform: translateX(-70%);
  animation: sheen 9s ease-in-out infinite;
}

.hero-visual svg {
  width: min(92%, 780px);
  height: auto;
}

.visual-meta {
  position: absolute;
  z-index: 2;
  left: 1.6rem;
  right: 1.6rem;
  display: flex;
  justify-content: space-between;
  color: #7d8580;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.14em;
}

.visual-meta-top {
  top: 1.5rem;
}

.visual-meta-bottom {
  bottom: 1.5rem;
}

@keyframes sheen {
  0%, 55% { transform: translateX(-70%); }
  80%, 100% { transform: translateX(80%); }
}

.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: clamp(5.5rem, 10vw, 10rem) var(--gutter);
}

.section-heading {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(300px, 0.9fr);
  gap: 4rem;
  align-items: end;
}

.section h2 {
  font-size: clamp(3.15rem, 6vw, 7rem);
}

.section-heading > p,
.standards-intro > p:last-child,
.about-copy > p:not(.eyebrow),
.contact-inner > p:not(.eyebrow) {
  margin: 0;
  color: #9fa7a2;
  font-size: clamp(1rem, 1.35vw, 1.18rem);
  line-height: 1.7;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: clamp(3rem, 6vw, 6rem);
  border: 1px solid var(--line);
  background: var(--line);
}

.product-card {
  position: relative;
  min-width: 0;
  background: var(--ink-soft);
}

.product-number {
  position: absolute;
  z-index: 2;
  top: 1.2rem;
  right: 1.2rem;
  color: #777f7a;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.11em;
}

.product-art {
  position: relative;
  height: 330px;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(rgb(255 255 255 / 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgb(255 255 255 / 0.025) 1px, transparent 1px),
    radial-gradient(circle at 50% 50%, #292e2b, #161a18 65%);
  background-size: 32px 32px, 32px 32px, auto;
}

.product-content {
  min-height: 305px;
  padding: clamp(1.5rem, 2.4vw, 2.35rem);
}

.product-status {
  margin: 0 0 1.2rem;
  color: var(--accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.61rem;
  font-weight: 700;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.product-content h3,
.process-list h3 {
  margin: 0;
  color: var(--paper-bright);
  font-size: clamp(1.55rem, 2.5vw, 2.35rem);
  font-weight: 600;
  letter-spacing: -0.035em;
}

.product-content > p:not(.product-status) {
  min-height: 5.5rem;
  margin: 1rem 0 2rem;
  color: #949c97;
  font-size: 0.92rem;
  line-height: 1.65;
}

.rail-piece {
  position: absolute;
  display: flex;
  gap: 5px;
  padding: 9px;
  border: 1px solid #5a625d;
  border-radius: 3px;
  background: linear-gradient(160deg, #373d39, #161a18);
  box-shadow: 0 28px 40px rgb(0 0 0 / 0.42);
  transform: rotate(-12deg);
}

.rail-piece-one {
  top: 110px;
  left: 13%;
  width: 72%;
  height: 72px;
}

.rail-piece-two {
  top: 198px;
  left: 30%;
  width: 54%;
  height: 56px;
  transform: rotate(12deg);
}

.rail-piece i {
  flex: 1;
  clip-path: polygon(18% 0, 82% 0, 100% 50%, 82% 100%, 18% 100%, 0 50%);
  background: #222725;
  box-shadow: inset 0 0 0 1px #464d49;
}

.cap-ring {
  position: absolute;
  top: 56px;
  left: 50%;
  width: 205px;
  height: 205px;
  padding: 25px;
  border: 12px dashed #2e3431;
  border-radius: 50%;
  background: #181c1a;
  box-shadow: 0 28px 48px rgb(0 0 0 / 0.5), inset 0 0 0 1px #59605c;
  transform: translateX(-50%) rotate(-8deg);
}

.cap-ring::after {
  content: "";
  position: absolute;
  inset: 18px;
  border: 1px solid #464c48;
  border-radius: 50%;
}

.cap-ring span {
  display: block;
  width: 100%;
  height: 100%;
  border: 1px solid #525a55;
  border-radius: 50%;
  background: radial-gradient(circle at 38% 30%, #363c38, #131614 68%);
}

.cap-tether {
  position: absolute;
  right: 12%;
  bottom: 45px;
  width: 126px;
  height: 26px;
  border: 1px solid #545c57;
  border-radius: 999px;
  background: #1f2421;
  box-shadow: 0 18px 28px rgb(0 0 0 / 0.4);
  transform: rotate(28deg);
}

.optic-body {
  position: absolute;
  top: 135px;
  left: 6%;
  width: 75%;
  height: 75px;
  border: 1px solid #5d6560;
  border-radius: 8px 30px 30px 8px;
  background: linear-gradient(#353b37, #171a18 62%);
  box-shadow: 0 30px 44px rgb(0 0 0 / 0.48);
  transform: rotate(6deg);
}

.optic-body::before,
.optic-body::after {
  content: "";
  position: absolute;
  top: -10px;
  width: 28px;
  height: 95px;
  border: 1px solid #5b635e;
  border-radius: 4px;
  background: #242926;
}

.optic-body::before { left: 23%; }
.optic-body::after { right: 18%; }

.optic-cap {
  position: absolute;
  z-index: 2;
  top: 88px;
  right: 7%;
  width: 126px;
  height: 126px;
  padding: 13px;
  border: 8px dashed #303633;
  border-radius: 50%;
  background: #171a19;
  box-shadow: 0 24px 42px rgb(0 0 0 / 0.5);
  transform: rotate(6deg);
}

.optic-cap span {
  display: block;
  width: 100%;
  height: 100%;
  border: 1px solid #59605c;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #3c423e, #111312 68%);
}

.standards {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(420px, 1.1fr);
  gap: clamp(4rem, 9vw, 10rem);
  border-top: 1px solid var(--line);
}

.standards-intro {
  position: sticky;
  top: 130px;
  align-self: start;
}

.standards-intro h2 {
  margin-bottom: 2rem;
  font-size: clamp(3rem, 5vw, 5.8rem);
}

.process-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.process-list li {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 1.2rem;
  padding: 2.3rem 0 3rem;
  border-top: 1px solid var(--line);
}

.process-index {
  color: var(--accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
}

.process-list p {
  max-width: 520px;
  margin: 1rem 0 0;
  color: #949c97;
  line-height: 1.7;
}

.about {
  max-width: none;
  display: grid;
  grid-template-columns: minmax(400px, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(4rem, 9vw, 10rem);
  align-items: center;
  border-top: 1px solid var(--line);
  background: var(--ink-soft);
}

.about-visual {
  position: relative;
  min-height: 580px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(30deg, transparent 48%, rgb(255 255 255 / 0.045) 49%, transparent 51%),
    radial-gradient(circle at center, #282e2a, #121513 70%);
  background-size: 24px 24px, auto;
}

.about-visual::before,
.about-visual::after {
  content: "";
  position: absolute;
  border: 1px solid #454c48;
  border-radius: 50%;
}

.about-visual::before { width: 70%; aspect-ratio: 1; }
.about-visual::after { width: 52%; aspect-ratio: 1; border-style: dashed; }

.about-stamp {
  position: relative;
  z-index: 1;
  width: 230px;
  height: 230px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  border: 2px solid var(--paper);
  border-radius: 50%;
  color: var(--paper-bright);
  background: rgb(11 13 13 / 0.55);
  box-shadow: 0 0 0 14px rgb(255 255 255 / 0.03);
}

.about-stamp span {
  font-size: 4.3rem;
  font-weight: 800;
  letter-spacing: -0.07em;
  line-height: 1;
}

.about-stamp small {
  margin-top: 1rem;
  color: var(--accent-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.13em;
}

.about-coordinates {
  position: absolute;
  left: 1.2rem;
  bottom: 1.2rem;
  color: #747c77;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
}

.about-copy {
  max-width: 700px;
}

.about-copy h2 {
  margin-bottom: 2.2rem;
  font-size: clamp(3.1rem, 5.4vw, 6.4rem);
}

.about-copy p + p {
  margin-top: 1.4rem !important;
}

.about-copy .about-lede {
  color: var(--paper);
  font-size: clamp(1.1rem, 1.55vw, 1.35rem);
}

.about-copy .legal-name {
  margin-top: 2rem !important;
  color: #747c77 !important;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.68rem !important;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.contact {
  max-width: none;
  padding-block: clamp(5rem, 9vw, 8rem);
  color: var(--ink);
  background: var(--accent);
}

.contact-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.contact .eyebrow {
  color: #4a2413;
}

.contact h2 {
  max-width: 1000px;
  color: var(--ink);
  font-size: clamp(3.5rem, 7.5vw, 8rem);
}

.contact-inner > p:not(.eyebrow) {
  max-width: 720px;
  margin-top: 2rem;
  color: #482515;
}

.contact-actions {
  display: flex;
  align-items: stretch;
  gap: 1rem;
  margin-top: 2.4rem;
}

.copy-email {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 0.8rem 1rem;
  border: 1px solid rgb(11 13 13 / 0.4);
  border-radius: 2px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.69rem;
}

.copy-email:hover,
.copy-email:focus-visible {
  background: rgb(11 13 13 / 0.08);
}

.copy-email span:last-child {
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.site-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 3rem;
  padding: 4rem var(--gutter) 2rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.footer-brand div {
  display: flex;
  flex-direction: column;
}

.footer-brand strong {
  color: var(--paper-bright);
  font-size: 0.9rem;
  letter-spacing: 0.03em;
}

.footer-brand span {
  margin-top: 0.35rem;
  color: #717974;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 1.7rem;
  color: #8e9691;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.65rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.footer-disclaimer {
  grid-column: 1 / -1;
  max-width: 840px;
  margin: 1rem 0 0;
  color: #666e69;
  font-size: 0.72rem;
  line-height: 1.6;
}

.footer-bottom {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  color: #666e69;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.61rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 650ms ease, transform 650ms ease;
}

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}

@media (max-width: 1120px) {
  .site-header {
    grid-template-columns: 1fr auto;
  }

  .header-cta {
    display: none;
  }

  .hero {
    grid-template-columns: 1fr 0.9fr;
  }

  .hero-visual {
    min-height: 640px;
  }

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

  .product-card {
    display: grid;
    grid-template-columns: minmax(340px, 0.9fr) minmax(0, 1.1fr);
  }

  .product-art {
    height: auto;
    min-height: 330px;
    border-right: 1px solid var(--line);
    border-bottom: 0;
  }

  .product-content {
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .product-content > p:not(.product-status) {
    min-height: 0;
  }
}

@media (max-width: 860px) {
  .announcement {
    font-size: 0.58rem;
  }

  .site-header {
    height: 72px;
  }

  .menu-toggle {
    display: block;
    justify-self: end;
  }

  .menu-toggle[aria-expanded="true"] span:nth-of-type(2) {
    transform: translateY(3px) rotate(45deg);
  }

  .menu-toggle[aria-expanded="true"] span:nth-of-type(3) {
    transform: translateY(-3px) rotate(-45deg);
  }

  .primary-nav {
    position: fixed;
    inset: 72px 0 auto;
    height: calc(100svh - 72px);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 2rem var(--gutter);
    color: var(--paper-bright);
    background: var(--ink);
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 220ms ease, visibility 220ms ease;
  }

  .primary-nav.is-open {
    transform: translateX(0);
    visibility: visible;
  }

  .primary-nav a {
    width: 100%;
    padding: 1.4rem 0;
    border-bottom: 1px solid var(--line);
    font-size: 1.1rem;
  }

  .hero {
    display: block;
  }

  .hero-copy {
    min-height: 670px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .hero-visual {
    min-height: 620px;
    border-top: 1px solid var(--line);
    border-left: 0;
  }

  .section-heading,
  .standards,
  .about {
    grid-template-columns: 1fr;
  }

  .section-heading {
    gap: 2rem;
  }

  .standards {
    gap: 4rem;
  }

  .standards-intro {
    position: static;
  }

  .about-visual {
    min-height: 480px;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }

  .footer-links {
    flex-wrap: wrap;
  }
}

@media (max-width: 620px) {
  .announcement span:first-child {
    display: none;
  }

  .announcement-dot {
    display: none;
  }

  .brand-mark {
    width: 37px;
    height: 37px;
  }

  .hero-copy {
    min-height: 620px;
    padding-block: 4.5rem;
  }

  .hero h1 {
    font-size: clamp(3.35rem, 15vw, 5.4rem);
  }

  .hero-actions,
  .contact-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-actions .text-link {
    align-self: flex-start;
  }

  .hero-facts {
    gap: 0.7rem;
  }

  .hero-facts dd {
    font-size: 0.58rem;
  }

  .hero-visual {
    min-height: 460px;
  }

  .section {
    padding-block: 5rem;
  }

  .section h2 {
    font-size: clamp(2.9rem, 14vw, 4.6rem);
  }

  .product-card {
    display: block;
  }

  .product-art {
    height: 280px;
    min-height: 0;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .product-content {
    min-height: 290px;
  }

  .rail-piece-one { top: 88px; }
  .rail-piece-two { top: 170px; }
  .cap-ring { top: 38px; width: 190px; height: 190px; }
  .optic-body { top: 112px; }
  .optic-cap { top: 65px; }

  .about {
    padding-inline: var(--gutter);
  }

  .about-visual {
    min-height: 390px;
  }

  .about-stamp {
    width: 185px;
    height: 185px;
  }

  .about-stamp span {
    font-size: 3.5rem;
  }

  .copy-email {
    gap: 0.6rem;
    font-size: 0.61rem;
  }

  .footer-links {
    gap: 1rem 1.4rem;
  }

  .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 0.65rem;
  }
}