:root {
  color-scheme: dark;
  font-family: Roboto, Arial, sans-serif;
  color: #f7f9fb;
  background: #081016;
  font-synthesis: none;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background:
    radial-gradient(circle at 85% 0%, rgba(37, 138, 169, 0.2), transparent 31rem),
    #081016;
  color: #f7f9fb;
  line-height: 1.65;
}

a { color: #7fe5f5; }
a:hover { color: #fff; }
a:focus-visible, summary:focus-visible { outline: 3px solid #7fe5f5; outline-offset: 4px; }
img { max-width: 100%; height: auto; }

.skip-link {
  position: fixed;
  top: -5rem;
  left: 1rem;
  z-index: 100;
  padding: .65rem 1rem;
  color: #081016;
  background: #fff;
  border-radius: .35rem;
}
.skip-link:focus { top: 1rem; }

.page-shell {
  width: min(1160px, calc(100% - 2rem));
  margin-inline: auto;
}

.page-shell { padding-block: 2rem 5rem; }
.breadcrumbs { margin: 0 0 2rem; color: #afbdc5; font-size: .9rem; }
.breadcrumbs a { color: #d7e5e9; }

.page-hero {
  display: grid;
  gap: 1rem;
  max-width: 870px;
  padding: clamp(2.5rem, 8vw, 6.5rem) 0 clamp(3rem, 6vw, 5rem);
}
.page-hero--product { max-width: none; grid-template-columns: minmax(0, .9fr) minmax(320px, .7fr); align-items: center; gap: clamp(2rem, 7vw, 6rem); }
.eyebrow { margin: 0; color: #7fe5f5; font-size: .78rem; font-weight: 700; letter-spacing: .16em; text-transform: uppercase; }
h1, h2, h3 { line-height: 1.12; letter-spacing: -.025em; }
h1 { margin: .15rem 0 .6rem; font-size: clamp(2.6rem, 7vw, 5.6rem); }
h2 { margin: 0 0 1rem; font-size: clamp(1.75rem, 4vw, 2.8rem); }
h3 { margin: 0 0 .65rem; font-size: 1.3rem; }
.lede { max-width: 760px; margin: 0; color: #c5d0d5; font-size: clamp(1.1rem, 2vw, 1.3rem); }

.button-row { display: flex; flex-wrap: wrap; gap: .8rem; margin-top: 1.25rem; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: .75rem 1.2rem;
  border: 1px solid #73d7e8;
  border-radius: .35rem;
  background: #73d7e8;
  color: #061015;
  text-decoration: none;
  font-weight: 700;
}
.button:hover { background: #fff; color: #061015; border-color: #fff; }
.button--secondary { color: #ecf7f9; background: transparent; border-color: rgba(255,255,255,.4); }

.product-visual {
  padding: 1.25rem;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 1rem;
  background: #fff;
}
.product-visual img { display: block; width: 100%; aspect-ratio: 1 / 1; object-fit: contain; }

.section { padding-block: clamp(2.75rem, 7vw, 5.5rem); border-top: 1px solid rgba(255,255,255,.1); }
.section__intro { max-width: 760px; margin-bottom: 2rem; color: #bcc9cf; }
.cards { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; }
.cards--three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card {
  padding: clamp(1.25rem, 3vw, 2rem);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: .65rem;
  background: rgba(255,255,255,.035);
}
.card p:last-child, .card ul:last-child { margin-bottom: 0; }
.card__image { display: block; margin: -1rem -1rem 1.25rem; padding: 1rem; border-radius: .55rem; background: #fff; }
.card__image img { display: block; width: 100%; aspect-ratio: 4 / 3; object-fit: contain; }
.card__kicker { margin: 0 0 .45rem; color: #7fe5f5; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }

.spec-list { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .75rem 2rem; padding-left: 1.3rem; }
.comparison { width: 100%; border-collapse: collapse; margin-top: 2rem; }
.comparison caption { padding-bottom: 1rem; text-align: left; }
.comparison th, .comparison td { padding: .9rem; border: 1px solid rgba(255,255,255,.14); text-align: left; vertical-align: top; }
.comparison th { background: rgba(115,215,232,.09); }

.article { max-width: 810px; }
.article h2 { margin-top: 3.5rem; }
.article h3 { margin-top: 2rem; }
.article p, .article li { color: #c5d0d5; }
.callout { margin-block: 2rem; padding: 1.25rem 1.5rem; border-left: 4px solid #73d7e8; background: rgba(115,215,232,.07); }

.faq-list { display: grid; gap: .8rem; max-width: 900px; }
.faq-list details { border: 1px solid rgba(255,255,255,.13); border-radius: .45rem; background: rgba(255,255,255,.03); }
.faq-list summary { cursor: pointer; padding: 1.1rem 1.25rem; font-weight: 700; }
.faq-list details > div { padding: 0 1.25rem 1.25rem; color: #c5d0d5; }

@media (max-width: 780px) {
  .page-hero--product, .cards, .cards--three { grid-template-columns: 1fr; }
  .page-hero--product .product-visual { max-width: 500px; }
  .spec-list { grid-template-columns: 1fr; }
  .comparison { display: block; overflow-x: auto; }
}

@media (max-width: 480px) {
  .page-shell { width: min(100% - 1.25rem, 1160px); }
}