:root {
  --ink: #142336;
  --muted: #4c6071;
  --brand: #005f9b;
  --accent: #0083bf;
  --pale: #eef5f7;
  --line: #d9e3e9;
  --white: #fff;
  --night: #0c2236;
  font-family: Geist,Arial,sans-serif;
  color: var(--ink);
  background: #f8faf9;
  font-synthesis: none;
}

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

html {
  scroll-behavior: smooth;
}

body,h1,h2,h3,p,figure {
  margin: 0;
}

body {
  font-size: 16px;
  line-height: 1.58;
}

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

a {
  color: inherit;
}

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

[hidden] {
  display: none!important;
}

:focus-visible {
  outline: 3px solid #009ad7;
  outline-offset: 4px;
}

.shell {
  width: min(100% - 7rem,1440px);
  margin-inline: auto;
}

h1,h2,h3 {
  font-family: Geist,Arial,sans-serif;
  letter-spacing: -.052em;
  font-weight: 800;
  line-height: 1.02;
}

h2 {
  font-size: clamp(2.2rem,4.3vw,4.35rem);
}

h3 {
  font-size: clamp(1.6rem,2.5vw,2.5rem);
}

section[id],article[id] {
  scroll-margin-top: 1.1rem;
}

.skip {
  position: absolute;
  z-index: 5;
  top: -6rem;
  left: 1rem;
  background: white;
  padding: .6rem 1rem;
}

.skip:focus {
  top: .6rem;
}

.topbar {
  background: var(--night);
  color: #d4e4ef;
  font-size: .77rem;
  font-weight: 500;
}

.topbar-row {
  min-height: 2.15rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .65rem;
}

.topbar a {
  text-decoration: none;
}

.topbar a:hover {
  text-decoration: underline;
}

.header {
  background: white;
  border-bottom: 1px solid var(--line);
}

.nav-row {
  min-height: 5.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.1rem;
}

.brand {
  display: block;
  flex: 0 0 auto;
  width: clamp(12rem, 25vw, 18rem);
  text-decoration: none;
}

.brand img {
  width: 100%;
  height: auto;
}

#site-nav {
  display: flex;
  align-items: center;
  gap: clamp(.8rem,2.3vw,2.4rem);
}

#site-nav a {
  font-size: .91rem;
  text-decoration: none;
  font-weight: 600;
  padding-block: .45rem;
}

#site-nav a:hover {
  color: var(--brand);
  text-decoration: underline;
  text-underline-offset: .35rem;
}

.menu-toggle {
  display: none;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .68rem;
  min-height: 3.05rem;
  padding: .65rem 1.05rem;
  border: 1px solid transparent;
  border-radius: .48rem;
  font-size: .9rem;
  line-height: 1.25;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background .2s,color .2s;
}

.button span {
  font-size: 1.11em;
}

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

.primary:hover {
  background: #004571;
}

.secondary {
  background: white;
  border-color: #cbd9e2;
  color: var(--ink);
}

.secondary:hover {
  background: #eaf3f8;
}

.inline-link {
  color: var(--brand);
  text-underline-offset: .27rem;
  font-weight: 700;
  font-size: .93rem;
}

.inline-link:hover {
  color: #004571;
}

.hero {
  display: grid;
  grid-template-columns: 1fr 1.04fr;
  gap: clamp(1.4rem,4.4vw,5rem);
  align-items: center;
  padding-block: clamp(2.65rem,5vw,5.55rem) 1.65rem;
}

.hero-copy {
  padding-block: 1rem;
}

.kicker {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: var(--brand);
  font-size: .72rem;
  text-transform: uppercase;
  font-weight: 800;
  letter-spacing: .11em;
  line-height: 1.4;
  margin-bottom: 1rem;
}

.kicker>span {
  width: 1.25rem;
  height: 2px;
  background: currentColor;
  flex: none;
}

.hero h1 {
  font-size: clamp(3.05rem,5.35vw,6rem);
  max-width: 9.55em;
}

.hero-copy>p:not(.kicker) {
  max-width: 31rem;
  color: var(--muted);
  font-size: clamp(1rem,1.35vw,1.2rem);
  margin-top: 1.35rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
  margin-top: 1.7rem;
}

.hero-photo {
  border-radius: 1rem;
  overflow: hidden;
  background: #102941;
  position: relative;
  min-height: 25rem;
  align-self: stretch;
}

.hero-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 54% center;
}

.quick-links {
  display: grid;
  grid-template-columns: repeat(3,1fr);
  border: 1px solid var(--line);
  border-radius: .75rem;
  background: white;
  overflow: hidden;
}

.quick-links a {
  position: relative;
  display: grid;
  gap: .22rem;
  min-width: 0;
  padding: 1.03rem 2.45rem 1.08rem 1.2rem;
  text-decoration: none;
}

.quick-links a+a {
  border-left: 1px solid var(--line);
}

.quick-links strong {
  font-family: Geist,Arial,sans-serif;
  font-size: 1.08rem;
  letter-spacing: -.03em;
}

.quick-links a>span {
  font-size: .83rem;
  color: var(--muted);
}

.quick-links b {
  position: absolute;
  right: 1rem;
  top: 1.07rem;
  color: var(--brand);
  font-size: 1.15rem;
}

.quick-links a:hover {
  background: #edf6fa;
}

.section {
  padding-block: clamp(3.3rem,7vw,6.8rem);
}

.section-heading {
  display: grid;
  grid-template-columns: 1.3fr .72fr;
  gap: 2rem;
  align-items: end;
  margin-bottom: 1.9rem;
}

.section-heading>p {
  max-width: 31rem;
  color: var(--muted);
  padding-bottom: .18rem;
}

.product-finder {
  border: 1px solid var(--line);
  border-radius: .8rem;
  background: white;
}

.product-tabs {
  display: flex;
  gap: .35rem;
  flex-wrap: wrap;
  background: #edf3f6;
  padding: .55rem;
  border-bottom: 1px solid var(--line);
  border-radius: .8rem .8rem 0 0;
}

.product-tabs a {
  padding: .64rem 1rem;
  border-radius: .35rem;
  text-decoration: none;
  font-size: .93rem;
  font-weight: 700;
  color: #34495a;
}

.product-tabs a:hover {
  background: #fff;
}

.product-tabs a[aria-current] {
  background: var(--brand);
  color: white;
}

.product-panel {
  padding: clamp(1rem,2.8vw,2.15rem);
}

.product-panel+.product-panel {
  border-top: 1px solid var(--line);
}

.panel-intro {
  display: grid;
  grid-template-columns: 11rem 1fr;
  gap: 1.25rem;
  align-items: center;
  margin-bottom: 1.3rem;
}

.panel-image {
  border-radius: .45rem;
  overflow: hidden;
  background: var(--pale);
}

.panel-image img {
  width: 100%;
  height: auto;
  aspect-ratio: 1.53;
  object-fit: cover;
}

.panel-intro p {
  color: var(--muted);
  margin: .55rem 0 .5rem;
  max-width: 43rem;
}

.grade-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--line);
}

.grade-list li {
  display: flex;
  justify-content: space-between;
  gap: .75rem;
  align-items: center;
  padding: .72rem .05rem;
  border-bottom: 1px solid var(--line);
}

.grade-list strong {
  font-weight: 750;
}

.grade-list small {
  display: inline-block;
  margin-left: .2rem;
  font-weight: 650;
  font-size: .68rem;
  color: #3a576b;
  padding: .13rem .32rem;
  background: var(--pale);
  border-radius: .23rem;
  vertical-align: .08em;
}

.grade-list p {
  color: var(--muted);
  font-size: .9rem;
}

.grade-list a {
  color: var(--brand);
  font-size: .76rem;
  text-decoration: none;
  font-weight: 800;
  white-space: nowrap;
  padding: .38rem .5rem;
  border: 1px solid #bed1df;
  border-radius: .32rem;
}

.grade-list a:hover {
  background: var(--pale);
}

.grade-list .grade-detail {
  padding: 0;
  border: 0;
  font-size: inherit;
  text-decoration: underline;
  text-underline-offset: .18em;
  white-space: normal;
}

.product-resources {
  margin-top: 1rem;
  padding: 1rem 1.15rem;
  background: white;
  border: 1px solid var(--line);
  border-radius: .52rem;
}

.product-resources :is(h2, h3) {
  font-size: 1.17rem;
  letter-spacing: -.02em;
}

.product-resources ul {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.6rem;
  margin: .7rem 0 0;
  padding-left: 1.1rem;
}

.product-resources a,
.product-page-section p a,
.breadcrumbs a {
  color: var(--brand);
  text-underline-offset: .2em;
}

.product-page {
  max-width: 68rem;
}

.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: .55rem;
  margin-bottom: 1.35rem;
  color: var(--muted);
  font-size: .86rem;
}

.product-page-intro {
  padding: clamp(1.25rem, 4vw, 3rem);
  background: var(--pale);
  border-radius: .8rem;
}

.product-page-intro.with-photo {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(12rem, 30%);
  gap: 1.5rem;
  align-items: center;
}

.product-page-intro img {
  width: 100%;
  height: auto;
  border-radius: .45rem;
}

.product-page h1 {
  font-size: clamp(2.3rem, 5.5vw, 4.6rem);
}

.product-page-intro p:not(.kicker),
.product-page-section > p {
  max-width: 44rem;
  margin: .85rem 0 1rem;
  color: var(--muted);
}

.product-page-section {
  padding: 1.65rem 0;
  border-bottom: 1px solid var(--line);
}

.product-page-section h2 {
  font-size: clamp(1.55rem, 3vw, 2.25rem);
}

@media (max-width: 42rem) {
  .product-page-intro.with-photo {
    grid-template-columns: 1fr;
  }

  .product-page-intro img {
    max-width: 18rem;
  }
}

.archive {
  background: white;
  border: 1px solid var(--line);
  border-radius: .52rem;
  margin-top: .85rem;
  padding: 0 1.15rem;
}

.archive summary,.tech-topics summary {
  cursor: pointer;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: .6rem;
  list-style: none;
  padding: 1rem 0;
}

.archive summary::-webkit-details-marker,.tech-topics summary::-webkit-details-marker {
  display: none;
}

.archive summary::after,.tech-topics summary::after {
  content: '+';
  color: var(--brand);
  font-size: 1.2rem;
  line-height: 1;
}

.archive[open] summary::after,.tech-topics details[open] summary::after {
  content: '−';
}

.archive summary span {
  margin-left: auto;
  color: var(--muted);
  font-size: .75rem;
  font-weight: 550;
}

.archive p {
  color: var(--muted);
}

.archive ul {
  display: grid;
  grid-template-columns: repeat(auto-fit,minmax(9rem,1fr));
  gap: .45rem 1rem;
  padding-left: 1.05rem;
  font-size: .9rem;
}

.archive a {
  color: var(--brand);
}

.technical {
  background: #eaf2f5;
  border-block: 1px solid #d8e6ed;
}

.technical-grid {
  display: grid;
  grid-template-columns: 1fr 1.06fr;
  gap: clamp(1.3rem,5vw,4.2rem);
  align-items: start;
}

.tech-topics {
  border-top: 1px solid #bdcfdc;
}

.tech-topics details {
  border-bottom: 1px solid #bdcfdc;
}

.tech-topics p {
  color: var(--muted);
  padding: 0 .3rem 1.05rem 0;
}

.calculator,.quote-form {
  background: white;
  border: 1px solid var(--line);
  border-radius: .8rem;
  padding: clamp(1.15rem,3vw,2.15rem);
}

.calculator h3 {
  font-size: clamp(1.55rem,2.4vw,2.3rem);
}

.calculator p,.calc-note {
  font-size: .86rem;
  color: var(--muted);
}

.calculator div p {
  margin-top: .35rem;
}

#calculator {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .7rem;
  margin-top: 1rem;
}

#calculator button {
  align-self: end;
}

label {
  display: grid;
  gap: .31rem;
  font-size: .8rem;
  font-weight: 700;
  color: #314c60;
}

input,select,textarea {
  min-width: 0;
  width: 100%;
  padding: .63rem .67rem;
  border: 1px solid #b9cbd7;
  border-radius: .35rem;
  background: #fafdff;
  color: var(--ink);
  font-size: .9rem;
}

textarea {
  resize: vertical;
}

.calc-result {
  display: block;
  margin-top: .95rem;
  padding: .62rem .75rem;
  background: var(--pale);
  border-radius: .35rem;
  color: #0d4c73;
  font-weight: 750;
}

.calc-note {
  margin-top: .45rem;
}

.about {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(1.5rem,6vw,5.5rem);
  align-items: center;
}

.about-media {
  border-radius: .8rem;
  overflow: hidden;
  border: 1px solid var(--line);
  background: white;
  aspect-ratio: 1.43;
}

.about-media img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.about p:not(.kicker) {
  color: var(--muted);
  margin-top: .85rem;
}

.about-subheading {
  margin-top: 1.45rem;
  font-size: clamp(1.25rem, 2vw, 1.65rem);
  letter-spacing: -.035em;
}

.about .inline-link {
  display: inline-block;
  margin-top: 1rem;
}

.contact {
  background: var(--night);
  color: #fff;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr .83fr;
  gap: clamp(2rem,7vw,6rem);
  align-items: start;
}

.contact .kicker {
  color: #91d5fa;
}

.contact-grid>div>p:not(.kicker) {
  color: #d1e1eb;
  margin-top: 1rem;
  max-width: 31rem;
}

.contact address {
  display: grid;
  gap: .4rem;
  margin-top: 1.2rem;
  font-style: normal;
  color: #dce9f1;
  overflow-wrap: anywhere;
}

.contact address a {
  text-underline-offset: .2rem;
}

.contact address .inline-link {
  color: #a6e0ff;
}

.quote-form {
  color: var(--ink);
  display: grid;
  gap: .85rem;
  scroll-margin-top: 1.1rem;
}

.quote-form h3 {
  font-size: 1.8rem;
}

.quote-phone-controls {
  display: grid;
  gap: .55rem;
  min-width: 0;
}

.quote-country-results {
  margin: 0;
  color: var(--muted);
  font-size: .85rem;
}

.quote-form button {
  justify-self: start;
}

.quote-form button:disabled {
  opacity: .65;
  cursor: wait;
}

.quote-status {
  font-size: .9rem;
  color: var(--muted);
}

.quote-status:empty {
  display: none;
}

.quote-status[data-state="success"] {
  color: #11643c;
}

.quote-status[data-state="error"] {
  color: #a02525;
}

.footer {
  background: #091a2b;
  color: #d1e1eb;
  font-size: .78rem;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1rem;
}

.footer a {
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}

@media(max-width:65rem) {
  .shell {
    width: calc(100% - 4rem);
  }
  .hero {
    gap: 1.75rem;
  }
  .hero-photo {
    min-height: 21rem;
  }
  .nav-cta {
    display: none;
  }
}

@media(max-width:48rem) {
  .shell {
    width: calc(100% - 2rem);
  }
  .nav-row {
    position: relative;
    min-height: 4.25rem;
    flex-wrap: wrap;
  }
  .brand {
    width: min(15rem, calc(100% - 6rem));
  }
  .js .menu-toggle {
    display: inline-flex;
    gap: .38rem;
    align-items: center;
    min-height: 2.5rem;
    background: #eef6fa;
    color: var(--brand);
    border: 1px solid #c8dbe8;
    border-radius: .4rem;
    padding: .4rem .65rem;
    font-size: .8rem;
    font-weight: 750;
  }
  #site-nav {
    width: 100%;
    gap: .95rem;
    flex-wrap: wrap;
    padding-bottom: .6rem;
  }
  .js #site-nav {
    position: absolute;
    z-index: 4;
    inset: calc(100% + .35rem) 0 auto;
    display: grid;
    gap: .15rem;
    padding: .5rem;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: .6rem;
    box-shadow: 0 .8rem 1.8rem rgb(12 34 54 / 12%);
    opacity: 0;
    transform: translateY(-.25rem);
    visibility: hidden;
    pointer-events: none;
    transition: opacity .16s ease-out, transform .16s ease-out, visibility 0s linear .16s;
  }
  .js #site-nav a {
    padding: .55rem .65rem;
    border-radius: .35rem;
  }
  .js #site-nav a:hover,
  .js #site-nav a:focus-visible {
    background: var(--pale);
  }
  .js .menu-toggle[aria-expanded=true]+#site-nav {
    opacity: 1;
    transform: none;
    visibility: visible;
    pointer-events: auto;
    transition-delay: 0s;
  }
  #site-nav a {
    font-size: .83rem;
  }
  .hero {
    grid-template-columns: 1fr;
    gap: 1.05rem;
    padding-block: 1.9rem .95rem;
  }
  .hero-copy {
    padding: 0;
  }
  .hero h1 {
    font-size: clamp(2.65rem,8.6vw,4.6rem);
  }
  .hero-copy>p:not(.kicker) {
    margin-top: .85rem;
  }
  .actions {
    margin-top: 1.15rem;
  }
  .hero-photo {
    min-height: 0;
    aspect-ratio: 1.6;
  }
  .section-heading,.about,.technical-grid,.contact-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .section-heading {
    margin-bottom: 1.15rem;
  }
  .about>div:nth-child(2) {
    order: -1;
  }
  .contact-grid {
    gap: 1.7rem;
  }
}

@media(max-width:33rem) {
  .topbar-row {
    font-size: .67rem;
  }
  .quick-links {
    grid-template-columns: 1fr;
  }
  .quick-links a {
    padding: .65rem 2rem .68rem .75rem;
    gap: .06rem;
  }
  .quick-links a+a {
    border-left: 0;
    border-top: 1px solid var(--line);
  }
  .quick-links b {
    top: .72rem;
  }
  .quick-links strong {
    font-size: .96rem;
  }
  .quick-links a>span {
    font-size: .76rem;
  }
  .quick-links a:not(:hover) {
    background: white;
  }
  .panel-intro {
    grid-template-columns: 1fr;
    gap: .72rem;
  }
  .panel-image {
    max-height: 9rem;
  }
  .panel-image img {
    height: 9rem;
  }
  .product-tabs a {
    padding: .49rem .58rem;
    font-size: .82rem;
  }
  .archive {
    padding: 0 .7rem;
  }
  .archive summary {
    font-size: .9rem;
  }
  .archive summary span {
    font-size: .68rem;
  }
  .button {
    font-size: .82rem;
    padding: .58rem .75rem;
  }
}

@media(prefers-reduced-motion:reduce) {
  html {
    scroll-behavior: auto;
  }
  .button,.js #site-nav {
    transition: none;
  }
}