:root {
  --navy: #0a2647;
  --slate: #5c6b7a;
  --green: #1b7a46;
  --cyan: #00b8c9;
  --paper: #f7f4ef;
  --warm: #fffdf8;
  --charcoal: #241f1a;
  --line: #d7d2ca;
  --shadow: 0 24px 70px rgba(10, 38, 71, 0.14);
  --max: 1180px;
  color-scheme: light;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--charcoal);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

img,
picture {
  display: block;
}

img {
  max-width: 100%;
}

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

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

.skip-link {
  position: fixed;
  z-index: 100;
  top: 12px;
  left: 12px;
  padding: 10px 14px;
  color: var(--navy);
  background: var(--warm);
  border: 1px solid var(--line);
  border-radius: 6px;
  transform: translateY(-160%);
}

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

.site-header {
  position: fixed;
  z-index: 30;
  top: 0;
  left: 0;
  right: 0;
  display: flex;
  min-height: 78px;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 14px 44px;
  color: var(--navy);
  background: rgba(247, 244, 239, 0.95);
  border-bottom: 1px solid rgba(10, 38, 71, 0.08);
  backdrop-filter: blur(14px);
}

.site-header.is-scrolled,
.site-header.is-open {
  box-shadow: 0 16px 38px rgba(10, 38, 71, 0.1);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand__logo {
  width: 210px;
  height: auto;
  max-height: 64px;
  object-fit: contain;
}

.brand__mark {
  width: 44px;
  height: 44px;
  object-fit: contain;
}

.brand__wordmark {
  display: grid;
  gap: 0;
  color: var(--navy);
  font-size: 1rem;
  font-weight: 900;
  line-height: 0.9;
  text-transform: uppercase;
}

.brand__wordmark span {
  color: var(--green);
  letter-spacing: 0.16em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--navy);
  font-size: 0.72rem;
  font-weight: 850;
  text-transform: uppercase;
}

.site-nav a,
.footer-nav a {
  position: relative;
  padding: 8px 0;
}

.site-nav a::after,
.footer-nav a::after {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  content: "";
  background: var(--green);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.site-nav a:hover::after,
.site-nav a:focus-visible::after,
.site-nav a[aria-current="page"]::after,
.footer-nav a:hover::after,
.footer-nav a:focus-visible::after,
.footer-nav a[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  border: 1px solid rgba(10, 38, 71, 0.25);
  border-radius: 6px;
  color: inherit;
  background: transparent;
}

.nav-toggle span {
  width: 20px;
  height: 2px;
  background: currentColor;
}

.sticky-cta {
  position: fixed;
  z-index: 28;
  left: 14px;
  right: 14px;
  bottom: 14px;
  display: none;
  gap: 8px;
  padding: 8px;
  border: 1px solid rgba(10, 38, 71, 0.12);
  border-radius: 8px;
  background: rgba(247, 244, 239, 0.97);
  box-shadow: 0 18px 48px rgba(10, 38, 71, 0.18);
  backdrop-filter: blur(14px);
  transform: translateY(140%);
  transition: transform 180ms ease;
}

.sticky-cta.is-visible {
  transform: translateY(0);
}

.sticky-cta a {
  display: inline-flex;
  flex: 1;
  min-height: 42px;
  align-items: center;
  justify-content: center;
  border-radius: 6px;
  color: var(--navy);
  background: var(--cyan);
  font-size: 0.78rem;
  font-weight: 900;
  text-align: center;
  text-transform: uppercase;
}

.sticky-cta a + a {
  color: var(--warm);
  background: var(--navy);
}

.hero {
  position: relative;
  min-height: 76svh;
  overflow: hidden;
  display: flex;
  align-items: center;
  padding: 132px 44px 92px;
  color: var(--warm);
  background: var(--navy);
}

.page-hero {
  min-height: 66svh;
}

.hero__media,
.hero__media img,
.hero__shade {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__media img {
  object-fit: cover;
}

.hero__shade {
  background:
    linear-gradient(90deg, rgba(10, 38, 71, 0.96) 0%, rgba(10, 38, 71, 0.82) 44%, rgba(27, 122, 70, 0.22) 100%),
    linear-gradient(180deg, rgba(10, 38, 71, 0.18), rgba(10, 38, 71, 0.46));
}

.hero__content {
  position: relative;
  z-index: 1;
  width: min(100%, var(--max));
  margin: 0 auto;
}

.eyebrow,
.mini-eyebrow {
  margin: 0 0 14px;
  color: var(--green);
  font-size: 0.78rem;
  font-weight: 900;
  line-height: 1.2;
  text-transform: uppercase;
}

.hero .eyebrow,
.visual-band .eyebrow,
.cta-band .eyebrow,
.oem-marquee .eyebrow {
  color: var(--cyan);
}

.hero h1 {
  max-width: 900px;
  margin: 0;
  font-size: 4.9rem;
  line-height: 0.98;
  font-weight: 880;
  color: var(--warm);
}

.page-hero h1 {
  max-width: 840px;
  font-size: 4.1rem;
}

.hero__lead {
  max-width: 780px;
  margin: 26px 0 0;
  color: rgba(255, 253, 248, 0.9);
  font-size: 1.18rem;
  line-height: 1.6;
}

.hero__actions,
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 850;
  line-height: 1.1;
  text-align: center;
  transition: transform 180ms ease, border-color 180ms ease, background-color 180ms ease, color 180ms ease;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-2px);
}

.button--primary {
  color: var(--navy);
  background: var(--cyan);
  box-shadow: 0 14px 34px rgba(0, 184, 201, 0.22);
}

.button--secondary,
.button--ghost-light {
  color: var(--warm);
  border-color: rgba(247, 244, 239, 0.54);
  background: rgba(247, 244, 239, 0.08);
}

.button--light {
  color: var(--navy);
  background: var(--warm);
}

.button--outline-dark {
  color: var(--navy);
  border-color: rgba(10, 38, 71, 0.24);
  background: transparent;
}

.button--newsletter {
  color: var(--warm);
  background: var(--green);
}

.text-link {
  display: inline-flex;
  width: fit-content;
  margin-top: 18px;
  color: var(--green);
  font-weight: 850;
  border-bottom: 2px solid rgba(27, 122, 70, 0.32);
}

.signal-strip {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  width: min(var(--max), calc(100% - 88px));
  margin: -36px auto 0;
  background: var(--line);
  box-shadow: var(--shadow);
}

.signal-strip--three {
  grid-template-columns: repeat(3, 1fr);
}

.signal-strip div {
  min-height: 126px;
  padding: 24px;
  background: var(--warm);
}

.signal-strip strong,
.signal-strip span {
  display: block;
}

.signal-strip strong {
  margin-bottom: 10px;
  color: var(--navy);
  font-size: 1rem;
}

.signal-strip span {
  color: var(--slate);
  line-height: 1.55;
}

.section {
  width: min(var(--max), calc(100% - 88px));
  margin: 0 auto;
  padding: 92px 0;
}

.section--bordered {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.split {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 70px;
  align-items: start;
}

.section__header {
  max-width: 850px;
  margin-bottom: 36px;
}

.section h2,
.visual-band h2,
.cta-band h2,
.contact h2,
.oem-marquee h2 {
  margin: 0;
  color: var(--navy);
  font-size: 3rem;
  line-height: 1.05;
}

.section__copy {
  display: grid;
  gap: 18px;
}

.section__copy p,
.card-grid p,
.equipment-grid p,
.optics-card-grid p,
.comparison-grid p,
.contact__content p,
.faq-list p,
.legal-list p {
  margin: 0;
  color: var(--slate);
  font-size: 1.04rem;
  line-height: 1.7;
}

.card-grid,
.equipment-grid,
.optics-card-grid,
.comparison-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.equipment-grid,
.optics-card-grid,
.comparison-grid {
  grid-template-columns: repeat(3, 1fr);
}

.card-grid article,
.equipment-grid article,
.optics-card-grid article,
.comparison-grid article,
.faq-list article,
.legal-list article {
  min-height: 285px;
  padding: 26px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--warm);
  box-shadow: 0 16px 44px rgba(10, 38, 71, 0.06);
}

.card-number,
.arc-timeline span {
  display: inline-flex;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  margin-bottom: 44px;
  border: 1px solid rgba(27, 122, 70, 0.3);
  border-radius: 6px;
  color: var(--green);
  background: rgba(27, 122, 70, 0.08);
  font-weight: 900;
}

.card-grid h2,
.equipment-grid h2,
.equipment-grid h3,
.optics-card-grid h2,
.comparison-grid h2,
.faq-list h3,
.legal-list h3 {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 1.3rem;
  line-height: 1.18;
}

.card-grid ul,
.equipment-grid ul,
.optics-card-grid ul {
  display: grid;
  gap: 8px;
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.card-grid li,
.equipment-grid li,
.optics-card-grid li {
  color: var(--navy);
  font-weight: 800;
  line-height: 1.35;
}

.visual-band {
  position: relative;
  display: flex;
  min-height: 560px;
  overflow: hidden;
  color: var(--warm);
  background: var(--navy);
}

.visual-band::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background:
    linear-gradient(90deg, rgba(10, 38, 71, 0.95) 0%, rgba(10, 38, 71, 0.82) 46%, rgba(10, 38, 71, 0.38) 100%),
    linear-gradient(0deg, rgba(10, 38, 71, 0.76), rgba(10, 38, 71, 0.16));
}

.visual-band--reverse::after {
  background:
    linear-gradient(270deg, rgba(10, 38, 71, 0.95) 0%, rgba(10, 38, 71, 0.82) 46%, rgba(10, 38, 71, 0.38) 100%),
    linear-gradient(0deg, rgba(10, 38, 71, 0.76), rgba(10, 38, 71, 0.16));
}

.visual-band__media,
.visual-band__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  min-height: 560px;
}

.visual-band__media img {
  object-fit: cover;
}

.visual-band__content {
  position: relative;
  z-index: 2;
  display: flex;
  width: min(720px, calc(100% - 88px));
  flex-direction: column;
  justify-content: center;
  margin-left: max(44px, calc((100vw - var(--max)) / 2));
  padding: 84px 0;
}

.visual-band--reverse .visual-band__content {
  margin-right: max(44px, calc((100vw - var(--max)) / 2));
  margin-left: auto;
}

.visual-band h2 {
  color: var(--warm);
}

.visual-band p:not(.eyebrow) {
  max-width: 660px;
  margin: 22px 0 0;
  color: rgba(247, 244, 239, 0.78);
  font-size: 1.05rem;
  line-height: 1.7;
}

.media-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.media-grid figure {
  margin: 0;
  overflow: hidden;
  border-radius: 6px;
  background: var(--navy);
}

.media-grid img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.media-grid figcaption {
  padding: 14px 16px;
  color: var(--warm);
  font-size: 0.82rem;
  font-weight: 850;
  text-transform: uppercase;
}

.arc-timeline {
  position: relative;
  z-index: 3;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  width: min(var(--max), calc(100% - 88px));
  margin: -42px auto 0;
  background: var(--line);
  box-shadow: var(--shadow);
}

.arc-timeline article {
  min-height: 210px;
  padding: 26px;
  background: var(--warm);
}

.arc-timeline span {
  margin-bottom: 34px;
}

.arc-timeline h2 {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 1.28rem;
}

.arc-timeline p {
  margin: 0;
  color: var(--slate);
  line-height: 1.62;
}

.oem-marquee {
  overflow: hidden;
  padding: 76px 0;
  color: var(--warm);
  background: var(--green);
}

.oem-marquee__inner {
  width: min(var(--max), calc(100% - 88px));
  margin: 0 auto;
}

.oem-marquee__header {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 46px;
  align-items: end;
}

.oem-marquee h2 {
  color: var(--warm);
}

.oem-marquee__header p:not(.eyebrow) {
  margin: 0;
  color: rgba(247, 244, 239, 0.78);
  line-height: 1.65;
}

.oem-marquee__viewport {
  overflow: hidden;
  margin-top: 42px;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.oem-marquee__track {
  display: flex;
  width: max-content;
  gap: 18px;
  animation: oem-scroll 48s linear infinite;
}

.oem-marquee__group {
  display: flex;
  gap: 18px;
}

.oem-logo-card {
  display: grid;
  flex: 0 0 156px;
  min-height: 164px;
  margin: 0;
  place-items: center;
  padding: 14px 14px 16px;
  border: 1px solid rgba(247, 244, 239, 0.2);
  border-radius: 6px;
  background: rgba(247, 244, 239, 0.08);
}

.oem-logo-card img {
  width: 118px;
  height: 118px;
  border-radius: 4px;
  object-fit: cover;
}

.oem-logo-card figcaption {
  color: rgba(247, 244, 239, 0.86);
  font-size: 0.76rem;
  font-weight: 850;
  text-transform: uppercase;
}

@keyframes oem-scroll {
  to {
    transform: translateX(calc(-50% - 9px));
  }
}

@media (prefers-reduced-motion: reduce) {
  .oem-marquee__track {
    animation: none;
  }
}

.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 58px max(44px, calc((100% - var(--max)) / 2));
  color: var(--warm);
  background: var(--navy);
}

.cta-band h2 {
  max-width: 780px;
  color: var(--warm);
  font-size: 2.35rem;
}

.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 70px;
  width: min(var(--max), calc(100% - 88px));
  margin: 0 auto;
  padding: 96px 0;
}

.contact__details {
  display: grid;
  gap: 10px;
  margin-top: 34px;
  color: var(--slate);
}

.contact__details a,
.contact__content a {
  color: var(--green);
  font-weight: 850;
}

.contact-form {
  display: grid;
  gap: 18px;
  padding: 30px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--warm);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  color: var(--navy);
  font-weight: 800;
}

.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid #c9c1b7;
  border-radius: 6px;
  padding: 13px 14px;
  color: var(--charcoal);
  background: var(--paper);
}

.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: 3px solid rgba(0, 184, 201, 0.22);
  border-color: var(--cyan);
}

.contact-form textarea {
  min-height: 140px;
  resize: vertical;
}

.form-note {
  min-height: 20px;
  margin: 0;
  color: var(--green);
  font-weight: 800;
}

.legal-list {
  display: grid;
  gap: 18px;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: 38px;
  padding: 38px 44px;
  color: var(--navy);
  background: var(--warm);
  border-top: 1px solid var(--line);
}

.site-footer__brand {
  display: grid;
  gap: 16px;
  max-width: 440px;
}

.site-footer p {
  margin: 0;
  color: var(--slate);
  line-height: 1.55;
}

.footer-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px;
  max-width: 820px;
}

.footer-actions .button {
  min-width: 210px;
  padding-inline: 18px;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 12px 22px;
  max-width: 820px;
  color: var(--navy);
  font-size: 0.92rem;
  font-weight: 800;
}

.brand--footer .brand__logo {
  width: 230px;
}

@media (max-width: 1120px) {
  .site-nav {
    gap: 12px;
    font-size: 0.72rem;
  }

  .hero h1 {
    font-size: 4rem;
  }

  .page-hero h1 {
    font-size: 3.35rem;
  }

  .section h2,
  .visual-band h2,
  .contact h2,
  .oem-marquee h2 {
    font-size: 2.45rem;
  }

  .card-grid,
  .equipment-grid,
  .optics-card-grid,
  .comparison-grid,
  .media-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .signal-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .visual-band,
  .visual-band--reverse {
    min-height: 520px;
  }

  .visual-band__media,
  .visual-band__media img {
    min-height: 520px;
  }

  .visual-band__content,
  .visual-band--reverse .visual-band__content {
    width: min(720px, calc(100% - 88px));
    margin-right: 44px;
    margin-left: 44px;
    padding: 70px 0;
  }

  .split,
  .contact {
    grid-template-columns: 1fr;
    gap: 42px;
  }
}

@media (max-width: 880px) {
  .site-header {
    min-height: 68px;
    padding: 12px 20px;
  }

  .brand__logo {
    width: 174px;
  }

  .brand__mark {
    width: 38px;
    height: 38px;
  }

  .brand__wordmark {
    font-size: 0.9rem;
  }

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

  .site-nav {
    position: absolute;
    left: 16px;
    right: 16px;
    top: 70px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 6px;
    color: var(--navy);
    background: var(--warm);
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 14px 12px;
  }

  .sticky-cta {
    display: flex;
  }

  body {
    padding-bottom: 78px;
  }

  .hero,
  .page-hero {
    min-height: 0;
    padding: 112px 20px 66px;
  }

  .hero__shade {
    background:
      linear-gradient(90deg, rgba(10, 38, 71, 0.96), rgba(10, 38, 71, 0.78)),
      linear-gradient(180deg, rgba(10, 38, 71, 0.12), rgba(10, 38, 71, 0.42));
  }

  .hero h1,
  .page-hero h1 {
    font-size: 2.58rem;
    line-height: 1.03;
  }

  .hero__lead {
    font-size: 1.02rem;
  }

  .hero__actions,
  .cta-band,
  .cta-actions,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .signal-strip,
  .signal-strip--three,
  .signal-strip--four,
  .arc-timeline {
    grid-template-columns: 1fr;
    width: calc(100% - 40px);
    margin-top: -24px;
  }

  .signal-strip div,
  .arc-timeline article {
    min-height: 0;
    padding: 22px;
  }

  .section,
  .contact,
  .oem-marquee__inner {
    width: calc(100% - 40px);
  }

  .section,
  .contact {
    padding: 68px 0;
  }

  .oem-marquee {
    padding: 64px 0;
  }

  .oem-marquee__header,
  .form-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .oem-marquee__header h2 {
    font-size: 2rem;
  }

  .oem-logo-card {
    flex-basis: 132px;
    min-height: 146px;
  }

  .oem-logo-card img {
    width: 98px;
    height: 98px;
  }

  .section h2,
  .visual-band h2,
  .contact h2,
  .cta-band h2 {
    font-size: 2rem;
  }

  .section__header {
    margin-bottom: 28px;
  }

  .card-grid,
  .equipment-grid,
  .optics-card-grid,
  .comparison-grid,
  .media-grid {
    grid-template-columns: 1fr;
  }

  .card-grid article,
  .equipment-grid article,
  .optics-card-grid article,
  .comparison-grid article {
    min-height: auto;
  }

  .visual-band__media,
  .visual-band__media img {
    min-height: 520px;
  }

  .visual-band__content,
  .visual-band--reverse .visual-band__content {
    width: calc(100% - 40px);
    margin-right: 20px;
    margin-left: 20px;
    padding: 50px 0;
  }

  .cta-band {
    padding: 50px 20px;
  }

  .contact-form {
    padding: 22px;
  }

  .site-footer {
    padding: 30px 20px;
  }

  .footer-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .footer-nav {
    justify-content: flex-start;
  }
}

@media (max-width: 420px) {
  .hero h1,
  .page-hero h1 {
    font-size: 2.22rem;
  }

  .brand__logo {
    width: 150px;
  }

  .brand__wordmark {
    font-size: 0.8rem;
  }

  .footer-nav {
    display: grid;
    gap: 8px;
  }
}