:root {
  --blue: #6794c8;
  --blue-deep: #6794c8;
  --ink: #151515;
  --white: #fff;
  --max: 1440px;
}

@font-face { font-family: "Kepler Std"; src: url('/assets/kepler-std-300.woff2') format('woff2'); font-style: normal; font-weight: 300; font-display: swap; }
@font-face { font-family: "Kepler Std"; src: url('/assets/kepler-std-400.woff2') format('woff2'); font-style: normal; font-weight: 400; font-display: swap; }
@font-face { font-family: "Kepler Std"; src: url('/assets/kepler-std-500.woff2') format('woff2'); font-style: normal; font-weight: 500; font-display: swap; }
@font-face { font-family: "Kepler Std"; src: url('/assets/kepler-std-700.woff2') format('woff2'); font-style: normal; font-weight: 700; font-display: swap; }

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; color: var(--ink); background: #fff; font-family: "Kepler Std", Georgia, "Times New Roman", serif; font-size: 18px; font-weight: 300; line-height: 1.6; }
a { color: inherit; }
img { display: block; max-width: 100%; }
button { font: inherit; }

.announcement { position: relative; min-height: 51px; padding: 11px 60px; text-align: center; color: var(--blue-deep); background: #fff; font-size: 19px; font-weight: 700; font-style: italic; letter-spacing: .01em; }
.announcement button { position: absolute; right: 24px; top: 10px; border: 0; background: transparent; color: inherit; cursor: pointer; font-size: 22px; }

.site-header { position: absolute; z-index: 10; width: 100%; top: 0; border-bottom: 9px solid rgba(255,255,255,.95); color: #fff; }
.has-announcement .site-header { top: 51px; }
.header-inner { height: 153px; padding: 0 3vw; display: flex; align-items: center; gap: 42px; background: rgba(0,0,0,.12); }
.brand { margin-right: auto; }
.brand img { width: 222px; height: auto; }
.desktop-nav { display: flex; align-items: center; gap: 28px; }
.desktop-nav > a, .nav-trigger { text-decoration: none; color: #fff; border: 0; background: transparent; padding: 3px 0; cursor: pointer; font-size: 21px; font-weight: 300; line-height: 1.6; }
.desktop-nav > .button { min-width: 237px; min-height: 81px; padding: 20px 41px; border: 0; background: #fff; color: var(--blue); font-size: 18px; font-weight: 500; }
.nav-folder { position: relative; }
.folder-menu { visibility: hidden; opacity: 0; position: absolute; right: 0; top: 46px; width: 280px; padding: 12px; background: #fff; color: #111; box-shadow: 0 14px 35px rgba(0,0,0,.18); transition: .18s ease; }
.folder-menu a { display: block; padding: 10px 12px; text-decoration: none; }
.folder-menu a:hover { background: #f1f4f8; }
.nav-folder:hover .folder-menu, .nav-folder:focus-within .folder-menu { visibility: visible; opacity: 1; }
.button { display: inline-flex; justify-content: center; align-items: center; min-width: 255px; min-height: 66px; padding: 16px 37px; border-radius: 999px; border: 4px solid #fff; background: var(--blue); color: #fff; text-decoration: none; font-size: 16px; font-weight: 500; line-height: 1.15; text-align: center; }
.button.light { background: #fff; color: var(--blue-deep); border-color: #fff; }
.menu-toggle { display: none; border: 0; background: transparent; color: #fff; font-size: 30px; cursor: pointer; }

.hero { position: relative; min-height: 850px; display: grid; place-items: center; padding: 210px 6vw 90px; color: #fff; text-align: center; background-color: #000; background-size: cover; background-position: center; }
.hero::before { content: ""; position: absolute; inset: 0; background: rgba(0,0,0,.27); }
.hero-content { position: relative; z-index: 1; max-width: 1180px; }
.hero h1 { margin: 0 0 25px; font-weight: 300; font-size: clamp(54px, 6vw, 92px); line-height: 1.08; }
.hero h1 span, .hero .lede span { background: var(--blue); box-decoration-break: clone; -webkit-box-decoration-break: clone; padding: 0 .12em .06em; }
.hero .lede { max-width: 1100px; margin: 0 auto 45px; font-size: clamp(22px, 2.2vw, 32px); line-height: 1.55; }
.home-hero { min-height: 100vh; padding: 0 6vw; background-image: url('/assets/home-dancer.jpeg'); background-position: center; }
.home-hero .hero-content { width: min(70.3vw, 948px); }
.home-hero h1 { margin-bottom: 18px; font-size: clamp(45px, 5.03vw, 68px); line-height: 1.22; }
.home-hero .button { min-width: 309px; }
.federal-hero { min-height: 490px; background-image: url('/assets/federal-hero.jpeg'); background-position: center 54%; }
.broadband-hero { background-image: url('/assets/broadband-hero.jpg'); }
.clean-hero { background-image: url('/assets/clean-energy-hero.png'); }
.procurement-hero { background-image: url('/assets/procurement-hero.jpeg'); }
.fuels-hero { background-image: url('/assets/fuels-hero.jpeg'); }
.corrosion-page { font-family: "Open Sans", Helvetica, Arial, sans-serif; font-weight: 400; }
.corrosion-hero { min-height: 756px; display: flex; align-items: center; justify-content: flex-start; padding: 175px 32px 64px; color: #222; text-align: left; background-image: url('/assets/corrosion-c130-hero.jpg'); background-position: center; }
.corrosion-hero::before { display: none; }
.corrosion-title-panel { position: relative; z-index: 1; padding: 32px 64px; background: rgba(255,255,255,.9); transform: translateY(26px); }
.corrosion-title-panel h1 { margin: 0 0 8px; color: #222; font-family: "Open Sans", Helvetica, Arial, sans-serif; font-size: clamp(56px, 5vw, 84px); font-weight: 300; line-height: .98; text-transform: uppercase; }

.promo { min-height: 66vh; padding: 0 3vw; display: flex; flex-direction: column; justify-content: flex-start; align-items: center; text-align: center; color: #fff; background: var(--blue); }
.promo img { width: min(83.55vw, 1596px); margin-top: 25.4vh; }
.promo a { margin-top: 11px; }
.section { padding: 110px 6vw; }
.section.tall { padding-top: 150px; padding-bottom: 150px; }
.home-intro { min-height: 50vh; padding: 0 3vw; display: grid; align-items: center; }
.home-intro .container, .performance .container { width: 100%; max-width: none; }
.home-intro .split, .performance .split { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.home-intro .split h2 { max-width: 415px; margin: 0; font-size: 45px; line-height: 1.3; font-weight: 300; }
.home-intro p { max-width: 522px; margin: 0; font-size: 27px; line-height: 1.6; font-weight: 300; }
.home-landscape { height: 66vh; overflow: hidden; }
.home-landscape img { width: 100%; height: 100%; object-fit: cover; }
.performance { min-height: 121vh; padding: 44px 3vw; }
.performance .split h2 { margin: 0; font-size: 45px; line-height: 1.3; font-weight: 300; }
.performance .performance-copy { max-width: 629px; }
.performance h3 { margin: 0 0 32px; font-size: 35px; line-height: 1.33; font-weight: 300; }
.performance h3:not(:first-child) { margin-top: 32px; }
.performance p { margin: 16px 0; font-size: 21px; line-height: 1.6; font-weight: 300; }
.performance p:last-child { margin-bottom: 0; }
.performance strong { font-weight: 700; }
.corrosion-intro { padding: 64px; background: #00339e; color: #fff; }
.corrosion-copy { width: min(702px, 100%); margin: 0 auto; }
.corrosion-copy p { margin: 0; font-size: 19.2px; line-height: 1.5; }
.corrosion-copy p + p { margin-top: 29px; }
.corrosion-assessment { margin: 0; }
.corrosion-assessment img { width: 100%; height: auto; }
.corrosion-details { padding: 30px 24px 90px; }
.corrosion-grid { width: min(1140px, 100%); margin: 0 auto; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 30px; align-items: start; }
.corrosion-details article, .client-column { padding: 0 15px; }
.corrosion-details h2 { margin: 0 0 8px; color: #00339e; font-family: "Open Sans", Helvetica, Arial, sans-serif; font-size: 32px; font-weight: 700; line-height: 1.1; }
.corrosion-list { margin: 0; padding-left: 25px; color: #373a3c; font-size: 16px; line-height: 1.5; }
.corrosion-list li { padding-left: 0; }
.corrosion-list li + li { margin-top: 0; }
.corrosion-list li::marker { color: #373a3c; }
.corrosion-list ul { margin: 0; padding-left: 25px; }
.client-column { display: grid; gap: 38px; }
.corrosion-page + .site-footer { min-height: 341px; background: #1e1756; color: #fff; font-family: "Open Sans", Helvetica, Arial, sans-serif; font-weight: 400; }
.blue { background: var(--blue); color: #fff; }
.black { background: #000; color: #fff; }
.container { max-width: var(--max); margin: 0 auto; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.25fr); gap: clamp(55px, 8vw, 130px); align-items: start; }
.split.equal { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.split h2, .section-title { margin: 0 0 35px; font-size: clamp(42px, 4.2vw, 68px); line-height: 1.15; font-weight: 400; }
.eyebrow { color: var(--blue-deep); }
.lead-copy { font-size: clamp(22px, 2vw, 32px); }
.center { text-align: center; }
.cards-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 55px; }
.cards-3 h3 { font-size: 25px; }
.feature-logo { height: 100px; object-fit: contain; margin: 0 auto 45px; }
.image-seal { max-height: 290px; margin: 40px auto 0; object-fit: contain; }
.two-col-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 90px; }
.three-col { display: grid; grid-template-columns: repeat(3, 1fr); gap: 70px; }
.three-col h3 { display: inline; background: #fff; color: #111; font-size: 34px; font-weight: 400; }

details { border-top: 1px solid currentColor; }
details:last-child { border-bottom: 1px solid currentColor; }
summary { list-style: none; cursor: pointer; padding: 20px 45px 20px 0; font-size: 24px; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 8px; font-size: 25px; }
details[open] summary::after { content: "−"; }
.detail-body { padding: 0 40px 24px 0; }
.detail-body strong { display: block; margin-bottom: 8px; }

.cta { min-height: 66vh; padding: 0 6vw; display: flex; flex-direction: column; justify-content: center; align-items: center; text-align: center; }
.cta h2 { width: min(629px, 100%); margin: 0 0 17px; color: var(--blue-deep); font-size: 45px; line-height: 1.3; font-weight: 300; }
.cta p { width: min(629px, 100%); margin: 0 0 28px; font-size: 27px; line-height: 1.6; font-weight: 300; }
.cta .button { min-width: 309px; }
.site-footer { min-height: 50vh; display: grid; place-items: center; text-align: center; padding: 70px 20px; }
.site-footer p { margin: 0; }
.site-footer a { text-decoration-color: var(--blue); text-underline-offset: 5px; }

.cookie { position: fixed; z-index: 50; left: 0; right: 0; bottom: 0; padding: 20px 30px; display: flex; align-items: center; gap: 30px; background: #000; color: #fff; font-size: 14px; }
.cookie p { margin: 0; flex: 1; }
.cookie button { border: 3px solid #fff; border-radius: 999px; padding: 10px 24px; background: var(--blue); color: #fff; cursor: pointer; }

@media (max-width: 850px) {
  body { font-size: 16px; }
  .announcement { padding: 10px 45px 10px 18px; font-size: 13px; }
  .has-announcement .site-header { top: 70px; }
  .site-header { border-bottom-width: 6px; }
  .header-inner { height: 100px; padding: 0 22px; }
  .brand img { width: 132px; }
  .menu-toggle { display: block; }
  .desktop-nav { display: none; position: absolute; left: 0; right: 0; top: 100px; padding: 20px 24px 26px; flex-direction: column; align-items: stretch; gap: 2px; background: #111; }
  .desktop-nav.open { display: flex; }
  .desktop-nav .button { margin-top: 12px; }
  .folder-menu { position: static; width: 100%; visibility: visible; opacity: 1; background: transparent; color: #fff; padding: 4px 0 6px 16px; box-shadow: none; }
  .folder-menu a { padding: 8px 0; }
  .nav-trigger { display: none; }
  .hero { min-height: 690px; padding-top: 155px; }
  .home-hero { min-height: 760px; padding-left: 24px; padding-right: 24px; }
  .home-hero .hero-content { width: 100%; }
  .federal-hero { min-height: 470px; }
  .corrosion-hero { min-height: 620px; padding: 145px 20px 45px; background-position: 58% center; }
  .corrosion-title-panel { width: 100%; padding: 24px 28px; }
  .corrosion-title-panel h1 { font-size: clamp(42px, 12vw, 60px); }
  .promo { min-height: 430px; padding: 0 24px; }
  .promo img { width: 100%; margin-top: 190px; }
  .promo a { margin-top: 18px; }
  .section, .section.tall, .home-intro, .performance { padding: 75px 24px; }
  .home-intro, .performance { min-height: auto; }
  .home-landscape { height: 55vh; }
  .home-intro h2, .home-intro p, .performance .performance-copy { max-width: none; }
  .performance h2 { font-size: 42px; }
  .performance h3 { font-size: 29px; }
  .performance p { font-size: 22px; }
  .split, .split.equal, .cards-3, .three-col, .two-col-list { grid-template-columns: 1fr; gap: 38px; }
  .corrosion-grid { grid-template-columns: 1fr; gap: 48px; }
  .corrosion-intro { padding: 48px 24px; }
  .corrosion-details { padding: 45px 9px 70px; }
  .corrosion-copy p { font-size: 17px; }
  .section-title, .split h2 { font-size: 42px; }
  .site-footer { min-height: 300px; }
  .cookie { flex-direction: column; align-items: flex-start; gap: 14px; }
}

@media (min-width: 851px) and (max-width: 1160px) {
  .desktop-nav { gap: 17px; }
  .desktop-nav > a, .nav-trigger { font-size: 17px; }
  .desktop-nav > .button { min-width: 190px; padding-left: 24px; padding-right: 24px; }
}

@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } * { transition: none !important; } }