:root {
  --ink: #16202a;
  --muted: #5d6874;
  --line: #d9e0e7;
  --paper: #ffffff;
  --soft: #f5f7f9;
  --brand: #d71920;
  --brand-dark: #9f1217;
  --accent: #f15a24;
  --steel: #273846;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  overflow-x: hidden;
}

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

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  color: var(--brand-dark);
  text-decoration: underline;
}

.container {
  width: min(var(--max), calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 5;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.header-row {
  min-height: 86px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  width: 230px;
  height: auto;
}

.nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.nav a {
  color: var(--steel);
  padding: 10px 12px;
  border-radius: 6px;
  font-size: 15px;
  font-weight: 700;
}

.nav a:hover,
.nav a[aria-current="page"] {
  color: #ffffff;
  background: var(--brand);
  text-decoration: none;
}

.hero {
  position: relative;
  min-height: 520px;
  display: grid;
  align-items: center;
  color: #ffffff;
  overflow: hidden;
  background: #111820;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 14, 20, 0.92), rgba(9, 14, 20, 0.62) 42%, rgba(9, 14, 20, 0.18));
  z-index: 1;
}

.hero img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero .container {
  position: relative;
  z-index: 2;
  padding: 78px 0;
}

.eyebrow {
  margin: 0 0 14px;
  color: #ffbd83;
  font-size: 14px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.15;
  overflow-wrap: break-word;
}

h1 {
  max-width: 760px;
  font-size: clamp(42px, 6vw, 68px);
  letter-spacing: 0;
}

.hero p {
  max-width: 650px;
  margin: 22px 0 0;
  font-size: 20px;
  overflow-wrap: break-word;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 6px;
  border: 2px solid transparent;
  font-weight: 800;
  color: #ffffff;
  background: var(--brand);
}

.button:hover {
  background: var(--brand-dark);
  color: #ffffff;
  text-decoration: none;
}

.button.secondary {
  border-color: rgba(255, 255, 255, 0.78);
  background: transparent;
}

.button.secondary:hover {
  background: rgba(255, 255, 255, 0.12);
}

.section {
  padding: 72px 0;
}

.section.alt {
  background: var(--soft);
}

.section-head {
  max-width: 820px;
  margin-bottom: 32px;
}

.section-head h2 {
  font-size: clamp(30px, 4vw, 46px);
}

.section-head p {
  color: var(--muted);
  font-size: 18px;
}

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

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

.card {
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
}

.card h3 {
  margin-bottom: 12px;
  font-size: 22px;
}

.card p,
.card li {
  color: var(--muted);
}

.metric {
  display: block;
  margin-bottom: 8px;
  color: var(--brand);
  font-size: 38px;
  font-weight: 800;
  line-height: 1;
}

.split {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 42px;
  align-items: center;
}

.photo-panel {
  overflow: hidden;
  border-radius: 8px;
  border: 1px solid var(--line);
  background: #edf1f4;
}

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

.product-diagram {
  min-height: 320px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(90deg, rgba(22, 32, 42, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(22, 32, 42, 0.05) 1px, transparent 1px),
    #ffffff;
  background-size: 26px 26px;
  padding: 30px;
  display: grid;
  place-items: center;
}

.bracket-svg {
  width: min(100%, 520px);
  height: auto;
}

.check-list {
  padding-left: 0;
  list-style: none;
}

.check-list li {
  position: relative;
  padding-left: 30px;
  margin: 12px 0;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--brand);
}

.check-list li::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 11px;
  width: 5px;
  height: 9px;
  border: solid #ffffff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.page-title {
  padding: 68px 0;
  color: #ffffff;
  background: linear-gradient(120deg, #1e2b36, #6c1014 70%, #f15a24);
}

.page-title h1 {
  font-size: clamp(38px, 5vw, 58px);
}

.page-title p {
  max-width: 780px;
  margin: 16px 0 0;
  font-size: 19px;
}

.contact-bar {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-top: -32px;
  position: relative;
  z-index: 2;
}

.contact-bar .card {
  box-shadow: 0 12px 28px rgba(22, 32, 42, 0.12);
}

.form {
  display: grid;
  gap: 14px;
}

.form label {
  font-weight: 700;
}

.form input,
.form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 12px;
  font: inherit;
}

.form textarea {
  min-height: 150px;
  resize: vertical;
}

.footer {
  color: #dce5ed;
  background: #111820;
}

.footer-top {
  padding: 48px 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 28px;
}

.footer h3 {
  color: #ffffff;
  margin-bottom: 14px;
}

.footer a {
  color: #ffffff;
}

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

.footer li {
  margin: 8px 0;
}

.footer-logo {
  width: 220px;
  background: #ffffff;
  border-radius: 8px;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.14);
  padding: 18px 0;
  color: #afbdc8;
  font-size: 14px;
}

@media (max-width: 840px) {
  .header-row {
    align-items: flex-start;
    flex-direction: column;
    padding: 14px 0;
    gap: 10px;
  }

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

  .hero {
    min-height: 560px;
  }

  .hero::before {
    background: linear-gradient(180deg, rgba(9, 14, 20, 0.9), rgba(9, 14, 20, 0.58));
  }

  .split,
  .grid,
  .grid.two,
  .contact-bar,
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 22px, var(--max));
  }

  .logo,
  .footer-logo {
    width: 200px;
  }

  .nav a {
    padding: 8px;
    font-size: 13px;
  }

  .header-row .nav {
    width: 100%;
  }

  h1 {
    font-size: 27px;
  }

  .section-head h2,
  h2 {
    font-size: 22px;
  }

  .eyebrow {
    max-width: 320px;
    font-size: 11px;
    letter-spacing: 0.03em;
    line-height: 1.35;
  }

  .hero h1,
  .hero p {
    max-width: 320px;
  }

  .hero p,
  .page-title p {
    font-size: 14px;
  }

  .section {
    padding: 52px 0;
  }
}