:root {
  --color-ink: #242424;
  --color-white: #ffffff;
  --color-mobile-header: #278899;
  --color-alert: #f58a00;

  --color-project: #ff605d;
  --color-project-tint: #ffd1cf;
  --color-construction: #ff971f;
  --color-construction-tint: #ffe2bb;
  --color-design: #ffef58;
  --color-design-tint: #fff9b9;
  --color-safety: #acd129;
  --color-safety-tint: #e4f3b1;
  --color-news: #35b5cd;
  --color-news-tint: #c8eff6;
  --color-meetings: #c6c6c6;
  --color-meetings-tint: #ececec;

  --active-section-color: var(--color-project);
  --content-width: 1540px;
  --focus-ring: 3px solid #ffffff;
}

/* Change the body's section class to keep the active underline and desktop
   subnav color in sync with the current top-level section. */
body.section-project { --active-section-color: var(--color-project); }
body.section-construction { --active-section-color: var(--color-construction); }
body.section-design { --active-section-color: var(--color-design); }
body.section-safety { --active-section-color: var(--color-safety); }
body.section-news { --active-section-color: var(--color-news); }
body.section-meetings { --active-section-color: var(--color-meetings); }

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--color-ink);
  background: #ffffff;
  font-family: Arial, Helvetica, sans-serif;
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

.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;
  z-index: 1000;
  top: 10px;
  left: 10px;
  padding: 12px 18px;
  color: #000;
  background: #fff;
  border: 3px solid #000;
  border-radius: 4px;
  transform: translateY(-180%);
  transition: transform 160ms ease;
}

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

.site-header {
  position: relative;
  z-index: 20;
  color: var(--color-white);
  background: var(--color-ink);
}

.site-header__inner {
  display: grid;
  grid-template-columns: minmax(185px, 1fr) auto;
  grid-template-rows: 88px 108px;
  align-items: center;
  width: min(100% - 64px, var(--content-width));
  margin-inline: auto;
  height: 170px;
}

.site-logo {
  display: inline-flex;
  justify-self: start;
  width: clamp(170px, 16vw, 245px);
  border-radius: 8px;
}

.site-logo img {
  display: block;
  max-width: 152px;
  width: 100%;
  height: auto;
}

.header-utility {
  display: grid;
  grid-template-columns: auto 48px minmax(235px, 340px);
  align-items: center;
  justify-content: end;
  gap: 22px;
}

.language-nav {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 1.12rem;
  letter-spacing: 0.01em;
  white-space: nowrap;
}

.language-nav a {
  color: #f3f3f3;
  text-decoration: none;
}

.language-nav a:hover,
.language-nav a:focus-visible {
  text-decoration: underline;
  text-underline-offset: 5px;
}

.language-nav span {
  width: 1px;
  height: 24px;
  background: rgba(255, 255, 255, 0.65);
}

.accessibility-button {
  display: inline-grid;
  width: 44px;
  height: 44px;
  place-items: center;
  color: #ffffff;
  border-radius: 50%;
}

.accessibility-button svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 3;
}

.accessibility-button .accessibility-button__fill {
  fill: currentColor;
  stroke: none;
}

.accessibility-button--mobile {
  display: none;
}

.site-search {
  position: relative;
}

.site-search input {
  width: 100%;
  min-height: 42px;
  padding: 8px 48px 8px 18px;
  color: #333;
  background: #fff;
  border: 1px solid #cfcfcf;
  border-radius: 7px;
  font-weight: 400;
}

.site-search input::placeholder {
  color: #777;
  opacity: 1;
}

.site-search button {
  position: absolute;
  top: 0;
  right: 0;
  display: grid;
  width: 46px;
  height: 100%;
  padding: 0;
  place-items: center;
  color: #737373;
  background: transparent;
  border: 0;
  border-radius: 0 7px 7px 0;
  cursor: pointer;
}

.site-search button svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-width: 3;
}

.menu-toggle {
  display: none;
}

.primary-nav {
  grid-column: 1 / -1;
  align-self: stretch;
}

.primary-nav__list,
.mobile-subnav,
.section-subnav ul {
  padding: 0;
  margin: 0;
  list-style: none;
}

.primary-nav__list {
  display: grid;
  grid-template-columns: 1.02fr 1.25fr 1.25fr 0.72fr 0.83fr 1.05fr;
  align-items: stretch;
  height: 100%;
  max-height: 86px;
  gap: clamp(20px, 3.4vw, 40px);
  margin-top: -5px;
  margin-left: -10px;
}

.nav-item {
  --section-color: var(--color-project);
  --section-tint: var(--color-project-tint);
}

.nav-item--project {
  --section-color: var(--color-project);
  --section-tint: var(--color-project-tint);
}

.nav-item--construction {
  --section-color: var(--color-construction);
  --section-tint: var(--color-construction-tint);
}

.nav-item--design {
  --section-color: var(--color-design);
  --section-tint: var(--color-design-tint);
}

.nav-item--safety {
  --section-color: var(--color-safety);
  --section-tint: var(--color-safety-tint);
}

.nav-item--news {
  --section-color: var(--color-news);
  --section-tint: var(--color-news-tint);
}

.nav-item--meetings {
  --section-color: var(--color-meetings);
  --section-tint: var(--color-meetings-tint);
}

.nav-item__row,
.primary-nav__link {
  height: 100%;
}

.primary-nav__link {
  position: relative;
  display: flex;
  align-items: center;
  color: #f6f6f6;
  font-size: clamp(0.92rem, 1.42vw, 1rem);
  line-height: 1.16;
  text-decoration: none;
  text-transform: uppercase;
}

.primary-nav__link::after {
  position: absolute;
  right: 0;
  bottom: 30px;
  left: 0;
  height: 4px;
  background: var(--section-color);
  border-radius: 3px;
  content: "";
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-item.is-active .primary-nav__link::after,
.primary-nav__link:hover::after,
.primary-nav__link:focus-visible::after {
  transform: scaleX(1);
}

.accordion-toggle,
.mobile-subnav {
  display: none;
}

.hero-banner {
  position: relative;
  min-height: clamp(364px, 38vw, 390px);
  overflow: hidden;
  isolation: isolate;
  background-color: #436d70;
  background-image: url("../images/banner_bg.png");
  background-position: center;
  background-size: cover;
}

.hero-banner__overlay {
  position: absolute;
  z-index: -1;
  inset: 0;
  background: rgba(18, 25, 27, 0.41);
}

.hero-banner__inner {
  display: grid;
  grid-template-columns: minmax(330px, 0.95fr) minmax(460px, 1.35fr);
  align-items: center;
  width: min(100% - 80px, 1440px);
  min-height: inherit;
  margin-inline: auto;
  gap: clamp(30px, 6vw, 100px);
}

.hero-banner__mark {
  display: block;
  width: min(100%, 383px);
  max-height: 470px;
  justify-self: center;
  filter: drop-shadow(0 8px 9px rgba(0, 0, 0, 0.35));
}

.hero-banner__message {
  display: grid;
  justify-items: center;
  gap: 26px;
}

.hero-banner h1 {
  margin: 0;
  color: #ffffff;
  font-size: clamp(2.4rem, 3.4vw, 4.4rem);
  font-style: italic;
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -0.045em;
  text-align: left;
  text-transform: uppercase;
  text-shadow: 0 3px 3px rgba(0, 0, 0, 0.2);
}

.hero-banner__cta,
.mobile-alert-cta {
  color: #090909;
  background: var(--color-alert);
  text-align: center;
  text-decoration: none;
}

.hero-banner__cta {
  width: min(100%, 625px);
  padding: 18px 32px;
  border-radius: 999px;
  font-size: clamp(1.3rem, 1.35vw, 1.4rem);
  letter-spacing: 0.01em;
}

.hero-banner__cta:hover,
.hero-banner__cta:focus-visible,
.mobile-alert-cta:hover,
.mobile-alert-cta:focus-visible {
  color: #000;
  background: #ffac32;
}

.section-subnav.section-subnav--construction-info {
    justify-content: start;
}

.section-subnav.section-subnav--construction-info a {
  font-weight: 700;
}

.section-subnav {
  display: flex;
  min-height: 58px;
  align-items: center;
  justify-content: start;
  padding: 10px 30px;
  background: var(--active-section-color);
}

.section-subnav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0;
}

.section-subnav li {
  display: flex;
  align-items: center;
}

.section-subnav li + li::before {
  margin-inline: 14px;
  content: "|";
}

.section-subnav a {
  color: #0c0c0c;
  font-size: clamp(0.8rem, 1vw, 0.9rem);
  letter-spacing: 0.01em;
  text-decoration-thickness: 2px;
  text-transform: uppercase;
  text-underline-offset: 4px;
  font-weight: 700;
}

.section-subnav a:not([aria-current="page"]) {
  text-decoration: none;
}

.section-subnav a:hover,
.section-subnav a:focus-visible {
  text-decoration: underline;
}

.mobile-alert-cta {
  display: none;
}

.demo-content {
  width: min(100% - 40px, 900px);
  min-height: 420px;
  padding: 70px 0;
  margin-inline: auto;
  font-weight: 400;
}

.demo-content h2 {
  margin-top: 0;
}

:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 4px;
}

.site-search input:focus-visible {
  outline-color: #111;
  outline-offset: 2px;
}

@media (max-width: 1050px) and (min-width: 851px) {
  .site-header__inner {
    width: min(100% - 36px, var(--content-width));
  }

  .header-utility {
    grid-template-columns: auto 42px minmax(200px, 260px);
    gap: 14px;
  }

  .primary-nav__list {
    gap: 20px;
  }

  .hero-banner__inner {
    width: min(100% - 48px, 1440px);
  }
}

@media (max-width: 850px) {
  :root {
    --focus-ring: 3px solid #111111;
  }

  .site-header {
    background: var(--color-mobile-header);
  }

  .site-header__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    grid-template-rows: 100px auto auto;
    width: 100%;
  }

  .site-logo {
    width: min(220px, 62vw);
    margin-left: clamp(18px, 6vw, 32px);
  }

  .menu-toggle {
    position: relative;
    display: grid;
    width: 50px;
    height: 50px;
    padding: 11px 8px;
    margin: 0 clamp(17px, 4vw, 26px) 0 4px;
    align-content: center;
    gap: 6px;
    color: #ffffff;
    background: transparent;
    border: 0;
    border-radius: 4px;
    cursor: pointer;
  }

  .menu-toggle__line {
    display: block;
    width: 31px;
    height: 4px;
    background: currentColor;
    border-radius: 2px;
    transition: transform 180ms ease, opacity 120ms ease;
  }

  .site-header.is-menu-open .menu-toggle__line:nth-child(2) {
    transform: translateY(10px) rotate(45deg);
  }

  .site-header.is-menu-open .menu-toggle__line:nth-child(3) {
    opacity: 0;
  }

  .site-header.is-menu-open .menu-toggle__line:nth-child(4) {
    transform: translateY(-10px) rotate(-45deg);
  }

  .accessibility-button--mobile {
    display: grid;
    grid-column: 2;
    grid-row: 1;
    width: 46px;
    height: 46px;
  }

  .accessibility-button--desktop {
    display: none;
  }

  .menu-toggle {
    grid-column: 3;
    grid-row: 1;
  }

  .header-utility {
    display: none;
    grid-column: 1 / -1;
    grid-row: 2;
    grid-template-columns: 1fr;
    gap: 14px;
    width: 100%;
    padding: 5px clamp(28px, 7vw, 42px) 20px;
  }

  .site-header.is-menu-open .header-utility {
    display: grid;
  }

  .language-nav {
    justify-content: flex-end;
    padding-right: 5px;
    font-size: 1.15rem;
  }

  .site-search input {
    min-height: 42px;
  }

  .primary-nav {
    display: none;
    grid-column: 1 / -1;
    grid-row: 3;
    width: 100%;
  }

  .site-header.is-menu-open .primary-nav {
    display: block;
  }

  .primary-nav__list {
    display: block;
    height: auto;
  }

  .nav-item {
    background: var(--section-color);
  }

  .nav-item__row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 72px;
    min-height: 64px;
  }

  .primary-nav__link {
    display: flex;
    min-height: 64px;
    padding: 14px 0 14px clamp(28px, 7vw, 42px);
    color: #090909;
    font-size: clamp(1rem, 5vw, 1.3rem);
    line-height: 1.2;
  }

  .primary-nav__link br {
    display: none;
  }

  .primary-nav__link::after {
    display: none;
  }

  .accordion-toggle {
    display: grid;
    width: 100%;
    height: 100%;
    padding: 0;
    place-items: center;
    color: #090909;
    background: transparent;
    border: 0;
    cursor: pointer;
  }

  .accordion-toggle__chevron {
    width: 18px;
    height: 18px;
    border-right: 4px solid currentColor;
    border-bottom: 4px solid currentColor;
    transform: rotate(45deg) translate(-3px, -3px);
    transition: transform 180ms ease;
  }

  .accordion-toggle[aria-expanded="true"] .accordion-toggle__chevron {
    transform: rotate(225deg) translate(-2px, -2px);
  }

  .mobile-subnav {
    display: block;
    padding: 13px 0 17px;
    background: var(--section-tint);
  }

  .mobile-subnav[hidden] {
    display: none;
  }

  .mobile-subnav a {
    display: block;
    padding: 7px clamp(28px, 7vw, 42px);
    color: #111;
    font-size: clamp(0.98rem, 4.7vw, 1.22rem);
    line-height: 1.18;
    text-decoration: none;
    text-transform: uppercase;
  }

  .mobile-subnav a:hover,
  .mobile-subnav a:focus-visible {
    text-decoration: underline;
    text-underline-offset: 4px;
  }

  .mobile-alert-cta {
    display: block;
    min-height: 48px;
    padding: 12px 18px;
    font-size: clamp(1rem, 5vw, 1.3rem);
  }

  .site-header.is-menu-open + .mobile-alert-cta {
    display: none;
  }

  .hero-banner {
    min-height: 560px;
  }

  .hero-banner__inner {
    grid-template-columns: 1fr;
    width: min(100% - 40px, 590px);
    padding: 38px 0 46px;
    gap: 20px;
  }

  .hero-banner__mark {
    width: min(78vw, 400px);
    max-height: 340px;
  }

  .hero-banner__message {
    gap: 22px;
  }

  .hero-banner h1 {
    font-size: clamp(3rem, 14vw, 5.2rem);
    text-align: center;
  }

  .hero-banner__cta {
    display: none;
  }

  .section-subnav {
    display: none;
  }
}

@media (max-width: 420px) {
  .site-header__inner {
    grid-template-columns: minmax(0, 1fr) 43px 48px;
    grid-template-rows: 88px auto auto;
  }

  .site-logo {
    width: min(190px, 58vw);
    margin-left: 15px;
  }

  .accessibility-button {
    width: 40px;
    height: 40px;
  }

  .menu-toggle {
    width: 44px;
    margin-right: 8px;
  }

  .menu-toggle__line {
    width: 28px;
  }

  .language-nav {
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}