:root {
  --ink: #1f2526;
  --ink-soft: #465052;
  --paper: #f8f6ef;
  --paper-deep: #eeeadf;
  --line: #d9d1bf;
  --teal: #237779;
  --teal-dark: #164f51;
  --clay: #d56f2e;
  --charcoal: #111819;
  --white: #ffffff;
  --shadow: 0 18px 45px rgba(24, 31, 32, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  line-height: 1.55;
}

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

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

p {
  margin: 0;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
  letter-spacing: 0;
}

h1 {
  font-size: 4rem;
  max-width: 900px;
}

h2 {
  font-size: 2.1rem;
}

h3 {
  font-size: 1.14rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 74px;
  padding: 0 44px;
  background: rgba(248, 246, 239, 0.95);
  border-bottom: 1px solid rgba(31, 37, 38, 0.1);
  backdrop-filter: blur(18px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  color: var(--white);
  background: var(--teal);
  border-radius: 6px;
  font-size: 0.9rem;
}

.brand-text {
  font-size: 1.02rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}

.site-nav a {
  padding: 10px 12px;
  border-radius: 6px;
  color: var(--ink-soft);
  font-weight: 700;
  font-size: 0.94rem;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--ink);
  background: rgba(35, 119, 121, 0.1);
}

.site-nav .nav-cta {
  color: var(--white);
  background: var(--teal);
}

.site-nav .nav-cta:hover,
.site-nav .nav-cta[aria-current="page"] {
  color: var(--white);
  background: var(--teal-dark);
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--white);
  cursor: pointer;
}

.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--ink);
}

.hero {
  position: relative;
  min-height: 78svh;
  display: grid;
  align-items: center;
  padding: 92px 44px 76px;
  color: var(--white);
  background:
    linear-gradient(90deg, rgba(16, 24, 25, 0.82), rgba(16, 24, 25, 0.36) 56%, rgba(16, 24, 25, 0.12)),
    url("images/hero-fibc.png") center / cover;
}

.hero-content {
  width: min(1060px, 100%);
  margin: 0 auto;
}

.hero-copy {
  max-width: 720px;
  margin-top: 22px;
  color: rgba(255, 255, 255, 0.88);
  font-size: 1.22rem;
}

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

.eyebrow {
  color: var(--clay);
  font-size: 0.82rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  margin-bottom: 12px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 46px;
  padding: 13px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-weight: 800;
  cursor: pointer;
  font: inherit;
}

.button.primary {
  color: var(--white);
  background: var(--clay);
}

.button.secondary {
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
  background: rgba(255, 255, 255, 0.12);
}

.button.light {
  color: var(--charcoal);
  background: var(--white);
}

.section {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 82px 0;
}

.section-tight {
  padding-top: 64px;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 30px;
}

.section-heading h2,
.split-copy h2,
.final-cta h2 {
  margin-bottom: 18px;
}

.feature-grid {
  display: grid;
  gap: 18px;
}

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

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

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

.feature-card {
  min-height: 178px;
  padding: 24px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 6px 22px rgba(31, 37, 38, 0.05);
}

.feature-card h2,
.feature-card h3 {
  margin-bottom: 12px;
}

.feature-card p {
  color: var(--ink-soft);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(360px, 0.95fr);
  align-items: stretch;
  gap: 0;
  background: var(--white);
}

.split-section.reverse {
  grid-template-columns: minmax(360px, 0.95fr) minmax(0, 1.05fr);
}

.split-section.reverse .split-media {
  order: 2;
}

.split-media {
  min-height: 470px;
}

.split-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 58px 54px;
}

.split-copy p:not(.eyebrow) {
  color: var(--ink-soft);
  margin-bottom: 26px;
}

.option-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 4px 0 28px;
}

.option-list span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 11px;
  color: var(--teal-dark);
  background: rgba(35, 119, 121, 0.1);
  border: 1px solid rgba(35, 119, 121, 0.18);
  border-radius: 6px;
  font-weight: 800;
  font-size: 0.9rem;
}

.text-link {
  color: var(--teal-dark);
  font-weight: 900;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 5px;
}

.application-strip {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 12px;
}

.application-strip a {
  min-height: 110px;
  display: flex;
  align-items: flex-end;
  padding: 18px;
  color: var(--white);
  background: var(--teal-dark);
  border-radius: 8px;
  font-weight: 900;
}

.application-strip a:nth-child(even) {
  background: var(--clay);
}

.quality-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 58px 44px;
  color: var(--white);
  background: var(--charcoal);
}

.quality-band div {
  max-width: 840px;
}

.quality-band p:not(.eyebrow) {
  color: rgba(255, 255, 255, 0.82);
  margin-top: 14px;
}

.final-cta {
  text-align: center;
}

.final-cta p:not(.eyebrow) {
  max-width: 680px;
  margin: 0 auto 24px;
  color: var(--ink-soft);
}

.site-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 34px 44px;
  color: rgba(255, 255, 255, 0.76);
  background: var(--charcoal);
}

.site-footer strong {
  display: block;
  color: var(--white);
  margin-bottom: 6px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  font-weight: 800;
}

.footer-links a {
  color: var(--white);
}

.page-hero {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
  padding: 78px 0 36px;
}

.page-hero.compact {
  padding-bottom: 62px;
}

.page-hero p:not(.eyebrow) {
  max-width: 780px;
  margin-top: 20px;
  color: var(--ink-soft);
  font-size: 1.08rem;
}

.wide-image {
  width: min(1180px, calc(100% - 48px));
  margin: 0 auto;
}

.wide-image img {
  width: 100%;
  max-height: 520px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.product-group {
  padding: 36px 0;
  border-top: 1px solid var(--line);
}

.product-group:first-child {
  padding-top: 0;
  border-top: 0;
}

.group-heading {
  margin-bottom: 24px;
}

.application-cards .feature-card {
  min-height: 230px;
}

.muted {
  margin-top: 16px;
  color: #697274;
}

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

.timeline article {
  display: grid;
  grid-template-columns: 86px minmax(0, 260px) minmax(0, 1fr);
  gap: 24px;
  align-items: start;
  padding: 26px 0;
  border-top: 1px solid var(--line);
}

.timeline span {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  color: var(--white);
  background: var(--teal);
  border-radius: 6px;
  font-weight: 900;
}

.timeline p {
  color: var(--ink-soft);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 420px);
  gap: 28px;
}

.about-copy,
.facts-panel,
.contact-panel,
.rfq-form {
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 8px;
  box-shadow: 0 6px 22px rgba(31, 37, 38, 0.05);
}

.about-copy p:not(.eyebrow) {
  color: var(--ink-soft);
  margin-top: 16px;
}

.check-list {
  list-style: none;
  padding: 0;
  margin: 22px 0 0;
}

.check-list li {
  position: relative;
  padding-left: 24px;
  margin-bottom: 12px;
  color: var(--ink-soft);
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 10px;
  height: 10px;
  background: var(--clay);
  border-radius: 50%;
}

.rfq-layout {
  width: min(1180px, calc(100% - 48px));
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 24px;
  margin: 0 auto;
  padding-bottom: 82px;
}

.form-section + .form-section {
  margin-top: 30px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}

.form-section h2,
.contact-panel h2,
.facts-panel h2 {
  font-size: 1.35rem;
  margin-bottom: 18px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  margin-bottom: 16px;
}

label {
  display: grid;
  gap: 7px;
  color: var(--ink);
  font-weight: 800;
  font-size: 0.92rem;
}

input,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 11px 12px;
  border: 1px solid #cfc6b4;
  border-radius: 6px;
  color: var(--ink);
  background: #fffdf8;
  font: inherit;
  font-weight: 500;
}

textarea {
  resize: vertical;
}

input:focus,
textarea:focus {
  outline: 3px solid rgba(35, 119, 121, 0.18);
  border-color: var(--teal);
}

.form-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 24px;
}

.form-status {
  color: var(--ink-soft);
  font-size: 0.92rem;
}

.contact-panel {
  align-self: start;
  position: sticky;
  top: 94px;
}

.contact-panel p,
.contact-panel dd {
  color: var(--ink-soft);
}

.contact-panel dl {
  margin: 22px 0 0;
}

.contact-panel dt {
  margin-top: 18px;
  font-weight: 900;
}

.contact-panel dd {
  margin: 4px 0 0;
}

.contact-panel a {
  color: var(--teal-dark);
  font-weight: 900;
}

@media (max-width: 980px) {
  h1 {
    font-size: 3rem;
  }

  h2 {
    font-size: 1.8rem;
  }

  .site-header {
    padding: 0 24px;
  }

  .menu-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 74px;
    right: 24px;
    left: 24px;
    display: none;
    flex-direction: column;
    align-items: stretch;
    padding: 14px;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: var(--shadow);
  }

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

  .site-nav a {
    padding: 13px 12px;
  }

  .feature-grid.three,
  .feature-grid.four,
  .application-strip,
  .feature-grid.two,
  .rfq-layout,
  .about-layout {
    grid-template-columns: 1fr 1fr;
  }

  .split-section,
  .split-section.reverse {
    grid-template-columns: 1fr;
  }

  .split-section.reverse .split-media {
    order: 0;
  }

  .split-media {
    min-height: 360px;
  }

  .contact-panel {
    position: static;
  }

  .rfq-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  h1 {
    font-size: 2.45rem;
  }

  h2 {
    font-size: 1.55rem;
  }

  .site-header {
    min-height: 66px;
    padding: 0 16px;
  }

  .brand-mark {
    width: 38px;
    height: 38px;
  }

  .site-nav {
    top: 66px;
    right: 16px;
    left: 16px;
  }

  .hero {
    min-height: 76svh;
    padding: 72px 24px 54px;
  }

  .hero-copy {
    font-size: 1rem;
  }

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

  .button {
    width: 100%;
  }

  .section,
  .page-hero,
  .wide-image,
  .rfq-layout {
    width: min(100% - 32px, 1180px);
  }

  .section {
    padding: 58px 0;
  }

  .page-hero {
    padding-top: 54px;
  }

  .feature-grid.three,
  .feature-grid.four,
  .application-strip,
  .feature-grid.two,
  .form-grid,
  .about-layout {
    grid-template-columns: 1fr;
  }

  .feature-card {
    min-height: auto;
    padding: 20px;
  }

  .split-copy {
    padding: 38px 24px;
  }

  .split-media {
    min-height: 300px;
  }

  .quality-band,
  .site-footer {
    align-items: stretch;
    flex-direction: column;
    padding: 38px 24px;
  }

  .timeline article {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .rfq-form,
  .contact-panel,
  .about-copy,
  .facts-panel {
    padding: 22px;
  }
}