:root {
  --navy: #17365d;
  --navy-2: #0d253f;
  --green: #79c65a;
  --sky: #eaf6fb;
  --warm: #f7f8f5;
  --white: #ffffff;
  --ink: #111827;
  --slate: #5e6b78;
  --border: #dfe6e8;
  --shadow: 0 24px 60px rgba(23, 54, 93, 0.12);
  --container: 1240px;
  --header: 76px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  color: var(--ink);
  background: var(--warm);
  font-family: Inter, "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
body.nav-open { overflow: hidden; }
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, select { font: inherit; }
button { color: inherit; }
:focus-visible { outline: 3px solid var(--green); outline-offset: 3px; }

.skip-link {
  position: fixed;
  top: 10px;
  left: 10px;
  z-index: 1000;
  padding: 10px 14px;
  border-radius: 10px;
  background: var(--white);
  color: var(--navy);
  transform: translateY(-150%);
}
.skip-link:focus { transform: none; }
.container { width: min(calc(100% - 40px), var(--container)); margin-inline: auto; }
.narrow { width: min(calc(100% - 40px), 820px); margin-inline: auto; }
.announcement {
  padding: 8px 20px;
  color: #dcecff;
  background: var(--navy-2);
  font-size: 13px;
  text-align: center;
}
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header);
  border-bottom: 1px solid rgba(223, 230, 232, 0.9);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 28px; }
.brand { display: inline-flex; align-items: center; flex: 0 0 auto; }
.brand img { width: 126px; height: auto; }
.desktop-nav { display: flex; align-items: center; gap: 32px; font-size: 15px; font-weight: 650; }
.desktop-nav a { position: relative; padding: 8px 0; }
.desktop-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 2px;
  height: 2px;
  background: var(--green);
  transition: right 180ms ease;
}
.desktop-nav a:hover::after, .desktop-nav a[aria-current="page"]::after { right: 0; }
.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--white);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.menu-icon, .menu-icon::before, .menu-icon::after {
  display: block;
  width: 20px;
  height: 2px;
  border-radius: 2px;
  background: var(--navy);
  transition: transform 180ms ease, opacity 180ms ease;
}
.menu-icon { position: relative; }
.menu-icon::before, .menu-icon::after { content: ""; position: absolute; left: 0; }
.menu-icon::before { top: -6px; }
.menu-icon::after { top: 6px; }
.menu-toggle[aria-expanded="true"] .menu-icon { background: transparent; }
.menu-toggle[aria-expanded="true"] .menu-icon::before { transform: translateY(6px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] .menu-icon::after { transform: translateY(-6px) rotate(-45deg); }
.mobile-nav {
  display: none;
  position: fixed;
  z-index: 90;
  inset: calc(var(--header) + 31px) 0 0;
  overflow-y: auto;
  padding: 28px 20px 48px;
  background: var(--white);
}
.mobile-nav[data-open="true"] { display: block; }
.mobile-nav-inner { display: grid; gap: 8px; }
.mobile-nav a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  min-height: 58px;
  padding: 10px 4px;
  border-bottom: 1px solid var(--border);
  color: var(--navy);
  font-size: 22px;
  font-weight: 700;
}
.mobile-nav a::after { content: "→"; color: var(--green); }

.eyebrow {
  margin: 0 0 14px;
  color: var(--navy);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.eyebrow-light { color: #bfe3f5; }
h1, h2, h3 { margin: 0; line-height: 1.08; letter-spacing: -0.035em; }
h1 { font-size: clamp(42px, 6vw, 68px); }
h2 { font-size: clamp(34px, 4.5vw, 52px); }
h3 { font-size: 24px; }
p { margin: 0; }
.lead { max-width: 680px; color: var(--slate); font-size: clamp(18px, 2vw, 21px); line-height: 1.55; }
.lead-light { color: #d8e4ee; }
.button-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 13px 22px;
  border: 1px solid var(--navy);
  border-radius: 12px;
  background: var(--navy);
  color: var(--white);
  font-weight: 750;
  line-height: 1.2;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}
.button:hover { transform: translateY(-2px); background: var(--navy-2); border-color: var(--navy-2); }
.button-secondary { background: transparent; color: var(--navy); }
.button-secondary:hover { background: var(--sky); color: var(--navy-2); }
.button-light { border-color: var(--white); background: var(--white); color: var(--navy); }
.button-light:hover { border-color: var(--green); background: var(--green); color: var(--navy-2); }
.text-link { color: var(--navy); font-weight: 750; }
.text-link:hover { text-decoration: underline; text-underline-offset: 4px; }

.hero { overflow: hidden; background: linear-gradient(135deg, #eef8fb 0%, #ffffff 58%, #edf5e8 100%); }
.hero-grid { min-height: 690px; display: grid; grid-template-columns: 1.02fr 0.98fr; align-items: center; gap: 38px; }
.hero-copy { padding: 80px 0; }
.hero-copy .lead { margin-top: 24px; }
.hero-media { position: relative; align-self: stretch; display: grid; place-items: center; min-width: 0; }
.hero-media::before {
  content: "";
  position: absolute;
  width: min(46vw, 560px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: inset 0 0 0 1px rgba(23, 54, 93, 0.06), 0 44px 100px rgba(23, 54, 93, 0.13);
}
.hero-media img { position: relative; z-index: 1; width: min(90%, 570px); filter: drop-shadow(0 28px 30px rgba(23, 54, 93, 0.12)); }
.hero-note { margin-top: 20px; color: var(--slate); font-size: 13px; }

.section { padding: 104px 0; }
.section-sm { padding: 72px 0; }
.section-white { background: var(--white); }
.section-sky { background: var(--sky); }
.section-dark { background: var(--navy-2); color: var(--white); }
.section-head { display: flex; justify-content: space-between; align-items: end; gap: 28px; margin-bottom: 46px; }
.section-head .lead { max-width: 560px; }
.benefit-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.benefit {
  min-height: 205px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: 22px;
  background: var(--white);
}
.benefit-index { display: inline-flex; margin-bottom: 34px; color: var(--green); font-size: 14px; font-weight: 850; }
.benefit h3 { margin-bottom: 12px; font-size: 21px; }
.benefit p { color: var(--slate); }

.product-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.product-card {
  display: grid;
  grid-template-rows: minmax(340px, 1fr) auto;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 26px;
  background: var(--white);
}
.product-card-media { display: grid; place-items: center; min-width: 0; padding: 28px; background: linear-gradient(145deg, #f6fafb, #edf5e8); }
.product-card-media { aspect-ratio: 4 / 3; overflow: hidden; }
.product-card-media img { width: 100%; height: 100%; object-fit: contain; }
.product-card-copy { padding: 32px; border-top: 1px solid var(--border); }
.product-card-copy h2, .product-card-copy h3 { margin-bottom: 14px; }
.product-card-copy p { color: var(--slate); }
.product-card-copy .text-link { display: inline-block; margin-top: 20px; }

.editorial { display: grid; grid-template-columns: 0.88fr 1.12fr; align-items: stretch; min-height: 540px; }
.editorial-copy { display: grid; align-content: center; padding: 64px max(40px, calc((100vw - var(--container)) / 2)); padding-right: 70px; }
.editorial-copy .lead { margin-top: 22px; }
.editorial-media { min-height: 500px; overflow: hidden; background: #dce9ec; }
.editorial-media img { width: 100%; height: 100%; object-fit: cover; }

.page-hero { padding: 94px 0 78px; background: linear-gradient(135deg, #ffffff 0%, #eaf6fb 100%); }
.page-hero .lead { margin-top: 22px; }
.page-hero .category-intro { max-width: 820px; }
.breadcrumbs { padding: 18px 0; color: var(--slate); font-size: 13px; }
.breadcrumbs ol { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.breadcrumbs li + li::before { content: "/"; margin-right: 8px; color: #9aa7b2; }
.breadcrumbs a:hover { color: var(--navy); text-decoration: underline; }

.detail { padding: 58px 0 100px; background: var(--white); }
.detail-grid { display: grid; grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr); gap: 64px; align-items: start; }
.gallery { min-width: 0; }
.gallery-main {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 26px;
  background: #fbfcfc;
}
.gallery-main img { width: 100%; height: 100%; padding: 28px; object-fit: contain; }
.gallery-thumbs { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin-top: 12px; }
.gallery-thumb {
  height: 84px;
  min-width: 0;
  padding: 5px;
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--white);
  cursor: pointer;
}
.gallery-thumb img { width: 100%; height: 100%; object-fit: contain; }
.gallery-thumb[aria-pressed="true"] { border-color: var(--navy); box-shadow: inset 0 0 0 1px var(--navy); }
.detail-copy { position: sticky; top: calc(var(--header) + 32px); }
.detail-copy h1 { font-size: clamp(38px, 5vw, 58px); }
.detail-copy .lead { margin-top: 20px; }
.feature-chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 24px 0 0; padding: 0; list-style: none; }
.feature-chips li { padding: 8px 12px; border-radius: 999px; background: var(--sky); color: var(--navy); font-size: 13px; font-weight: 700; }
.variant-title { margin: 32px 0 12px; font-size: 14px; font-weight: 800; color: var(--navy); }
.variant-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.variant-option {
  min-height: 68px;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--white);
  text-align: left;
  cursor: pointer;
}
.variant-option:hover { border-color: #91a9bd; }
.variant-option[aria-pressed="true"] { border-color: var(--navy); background: var(--sky); box-shadow: inset 0 0 0 1px var(--navy); }
.variant-option strong, .variant-option small { display: block; }
.variant-option small { margin-top: 2px; color: var(--slate); }
.selection-note { min-height: 26px; margin-top: 12px; color: var(--slate); font-size: 14px; }
.product-price { min-height: 38px; margin-top: 8px; color: var(--navy-2); font-size: 25px; font-weight: 850; letter-spacing: -0.025em; }
.detail-copy .button { width: 100%; margin-top: 8px; }
.retailer-note { margin-top: 12px; color: var(--slate); font-size: 12px; }

.feature-layout { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 46px; }
.feature-panel { padding: 30px; border-top: 2px solid var(--green); background: rgba(255, 255, 255, 0.06); }
.feature-panel p { margin-top: 12px; color: #cfdae4; }
.media-band { overflow: hidden; border-radius: 26px; background: #dce9ec; }
.media-band img { width: 100%; aspect-ratio: 2.44 / 1; object-fit: cover; }
.spec-grid { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 64px; align-items: start; }
.spec-list { margin: 0; border-top: 1px solid var(--border); }
.spec-row { display: grid; grid-template-columns: 0.8fr 1.2fr; gap: 20px; padding: 17px 0; border-bottom: 1px solid var(--border); }
.spec-row dt { color: var(--slate); }
.spec-row dd { margin: 0; font-weight: 700; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; counter-reset: steps; }
.step { padding: 28px; border: 1px solid var(--border); border-radius: 20px; background: var(--white); counter-increment: steps; }
.step::before { content: "0" counter(steps); display: block; margin-bottom: 28px; color: var(--green); font-weight: 850; }
.step h3 { margin-bottom: 10px; }
.step p { color: var(--slate); }

.faq-list { margin-top: 38px; border-top: 1px solid var(--border); }
.faq-item { border-bottom: 1px solid var(--border); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 18px 0;
  color: var(--navy-2);
  font-size: 20px;
  font-weight: 750;
  line-height: 1.35;
  cursor: pointer;
  list-style: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; flex: 0 0 auto; color: var(--green); font-size: 30px; font-weight: 500; line-height: 1; }
.faq-item[open] summary::after { content: "−"; }
.faq-answer { padding: 0 44px 24px 0; color: var(--slate); }
.faq-answer p { max-width: 760px; }

.site-footer { padding: 70px 0 32px; color: #d9e4ed; background: var(--navy-2); }
.footer-grid { display: grid; grid-template-columns: 1.3fr repeat(2, 0.7fr); gap: 54px; }
.footer-brand img { width: 126px; }
.footer-brand p { max-width: 430px; margin-top: 20px; color: #aebdca; }
.footer-title { margin-bottom: 16px; color: var(--white); font-size: 13px; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.footer-links { display: grid; gap: 10px; }
.footer-links a:hover { color: var(--green); }
.footer-bottom { display: flex; justify-content: space-between; gap: 24px; margin-top: 54px; padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.15); color: #91a4b4; font-size: 12px; }
.legal-intro { margin-top: 20px; }
.legal-date { margin-top: 18px; color: var(--slate); font-size: 14px; }
.legal-copy { max-width: 780px; }
.legal-copy h2 { margin-top: 44px; font-size: clamp(26px, 3vw, 34px); }
.legal-copy h2:first-child { margin-top: 0; }
.legal-copy p { margin-top: 14px; color: var(--slate); }
.legal-copy a { color: var(--navy); font-weight: 750; text-decoration: underline; text-underline-offset: 3px; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 980px) {
  .desktop-nav { display: none; }
  .menu-toggle { display: inline-flex; }
  .hero-grid { min-height: 0; grid-template-columns: 1fr; }
  .hero-copy { padding: 72px 0 24px; }
  .hero-media { min-height: 460px; }
  .hero-media::before { width: min(80vw, 520px); }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .editorial { grid-template-columns: 1fr; }
  .editorial-copy { padding: 72px 28px; }
  .editorial-media { min-height: 360px; order: -1; }
  .detail-grid { grid-template-columns: 1fr; gap: 38px; }
  .detail-copy { position: static; }
  .spec-grid { grid-template-columns: 1fr; gap: 36px; }
  .feature-layout { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  :root { --header: 68px; }
  .container, .narrow { width: min(calc(100% - 28px), var(--container)); }
  .announcement { min-height: 31px; padding: 6px 12px; font-size: 12px; }
  .site-header { height: var(--header); }
  .brand img { width: 108px; }
  .mobile-nav { inset: calc(var(--header) + 28px) 0 0; }
  h1 { font-size: 42px; }
  h2 { font-size: 34px; }
  .lead { font-size: 18px; }
  .hero-copy { padding-top: 58px; }
  .hero-media { min-height: 370px; }
  .hero-media img { width: 96%; }
  .section { padding: 76px 0; }
  .section-sm { padding: 58px 0; }
  .section-head { display: grid; margin-bottom: 32px; }
  .benefit-grid, .product-grid, .steps { grid-template-columns: 1fr; }
  .benefit { min-height: 178px; }
  .product-card { grid-template-rows: minmax(290px, 1fr) auto; }
  .page-hero { padding: 68px 0 56px; }
  .detail { padding-top: 34px; }
  .gallery-main img { padding: 16px; }
  .gallery-thumbs { grid-template-columns: repeat(4, minmax(0, 1fr)); }
  .gallery-thumb { height: 72px; }
  .variant-grid { grid-template-columns: 1fr; }
  .faq-item summary { min-height: 70px; font-size: 18px; }
  .faq-answer { padding-right: 22px; }
  .media-band { border-radius: 18px; }
  .spec-row { grid-template-columns: 1fr; gap: 4px; }
  .footer-grid { grid-template-columns: 1fr; gap: 34px; }
  .footer-bottom { display: grid; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; }
}