/* ================================================================
   ALTINO / CoreBiz — Official website renewal
   01 Tokens & base  02 Header  03 Hero & trust  04 Sections & video
   05 Products & assurance  06 Learning  07 Support  08 Contact
   09 Gallery  10 Responsive
   Change the colors and spacing below to update the entire website.
   ================================================================ */

:root {
    --ink: #142a38;
    --ink-deep: #102430;
    --muted: #596d77;
    --accent: #007f94;
    --accent-bright: #39c8d8;
    --accent-soft: #e5f6f7;
    --paper: #ffffff;
    --wash: #f5f8f9;
    --line: #dae3e7;
    --amber: #e2b342;
    --radius: 16px;
    --page: 1280px;
    --shadow: 0 22px 70px rgb(20 42 56 / 12%);
    --font: "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, sans-serif;
    --latin: Arial, "Helvetica Neue", sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 108px; }
body { margin: 0; background: var(--paper); color: var(--ink); font: 500 17px/1.85 var(--font); -webkit-font-smoothing: antialiased; }
body.modal-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
button, input, select, textarea { font: inherit; }
button, summary, a { -webkit-tap-highlight-color: transparent; }
button { color: inherit; cursor: pointer; }
button:disabled { cursor: default; opacity: .45; }
button, input, select, textarea { border-radius: 0; }
img { display: block; width: 100%; max-width: 100%; height: auto; }
figure, h1, h2, h3, h4, p { margin: 0; }
ul, ol { margin: 0; padding: 0; }
::selection { background: #c3f0f3; color: var(--ink); }
:focus-visible { outline: 3px solid var(--accent); outline-offset: 5px; }
[hidden] { display: none !important; }
.container { width: min(var(--page), calc(100% - 96px)); margin-inline: auto; }
.section { padding-block: 110px; }
.section--wash { background: var(--wash); }
.eyebrow { display: flex; align-items: center; gap: 12px; color: var(--accent); font: 700 12px/1.4 var(--latin); letter-spacing: .16em; }
.eyebrow::before { content: ""; width: 24px; height: 2px; background: currentColor; }
.section-heading { margin-top: 19px; font-size: clamp(30px, 3.2vw, 44px); line-height: 1.5; font-weight: 800; letter-spacing: -.035em; }
.section-intro { max-width: 620px; margin-top: 23px; color: var(--muted); line-height: 2; }
.section-top { display: flex; align-items: flex-end; justify-content: space-between; gap: 40px; margin-bottom: 42px; }
.section-top > p { max-width: 410px; padding-bottom: 5px; color: var(--muted); }
.text-link { display: inline-flex; align-items: center; gap: 18px; font-size: 15px; font-weight: 700; padding-block: 9px; border-bottom: 1px solid var(--line); }
.text-link:hover { color: var(--accent); border-color: var(--accent); }
.arrow { display: inline-block; font-family: var(--latin); font-weight: 400; font-size: 21px; line-height: 1; }
.button { display: inline-flex; justify-content: center; align-items: center; gap: 22px; min-height: 56px; border: 1px solid var(--ink); border-radius: 5px; padding: 14px 25px; background: var(--ink); color: #fff; font-size: 15px; font-weight: 700; line-height: 1.6; transition: background .2s, transform .2s, box-shadow .2s; }
.button:hover { background: #214557; transform: translateY(-2px); box-shadow: 0 6px 16px rgb(20 42 56 / 12%); }
.button--outline { background: transparent; color: var(--ink); border-color: #b9c7cd; }
.button--outline:hover { background: var(--accent-soft); }
.button--light { border-color: #fff; color: var(--ink); background: #fff; }
.button--light:hover { background: #e9f9fa; }
.button--accent { background: var(--accent-bright); color: var(--ink-deep); border-color: var(--accent-bright); }
.button--accent:hover { background: #70deea; }
.button-row { display: flex; flex-wrap: wrap; align-items: center; gap: 16px; }
.small-note { font-size: 14px; line-height: 1.9; color: var(--muted); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }
.skip-link { position: fixed; top: -100px; left: 20px; z-index: 200; padding: 12px 22px; color: #fff; background: var(--ink); }
.skip-link:focus { top: 10px; }

/* 02 — Shared header and navigation */
.site-header { position: sticky; top: 0; z-index: 40; height: 88px; background: rgb(255 255 255 / 96%); border-bottom: 1px solid rgb(218 227 231 / 80%); backdrop-filter: blur(16px); }
.header-inner { height: 100%; display: flex; align-items: center; gap: 36px; }
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark { width: 32px; height: 34px; }
.brand-word { font: 800 31px/1 var(--latin); letter-spacing: -.04em; }
.brand-caption { display: block; margin-top: 5px; font: 700 8px/1.1 var(--latin); letter-spacing: .13em; }
.site-nav { display: flex; align-items: center; gap: 20px; margin-left: auto; }
.site-nav > a:not(.nav-contact) { font-size: 13px; font-weight: 700; padding-block: 14px; white-space: nowrap; position: relative; }
.site-nav > a:not(.nav-contact)::after { content: ""; position: absolute; bottom: 5px; left: 0; right: 0; height: 2px; background: var(--accent); transform: scaleX(0); transition: transform .2s; }
.site-nav > a:hover::after, .site-nav > a[aria-current="page"]::after { transform: scaleX(1); }
.nav-contact { display: inline-flex; align-items: center; gap: 18px; padding: 10px 19px; min-height: 46px; background: var(--ink); color: #fff; border-radius: 4px; font-size: 13px; font-weight: 700; white-space: nowrap; }
.nav-contact:hover { background: var(--accent); }
.menu-toggle { display: none; margin-left: auto; border: 1px solid var(--line); background: white; width: 46px; height: 44px; padding: 11px; border-radius: 5px; }
.menu-toggle span { display: block; height: 2px; background: var(--ink); margin-block: 4px; transition: transform .2s; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3px) rotate(-45deg); }

/* 03 — Actual ALTINO photography, light traces and sensor-inspired framing.
   The image stays in HTML. Gradients, grid and framing are CSS decoration. */
.hero { overflow: hidden; position: relative; isolation: isolate; background: #061724; color: #fff; }
.hero-backdrop { position: absolute; z-index: -3; inset: 0 0 0 30%; pointer-events: none; }
.hero-backdrop img { width: 100%; height: 100%; object-fit: cover; object-position: 42% center; }
.hero::before { content: ""; position: absolute; z-index: -2; inset: 0; pointer-events: none; background: linear-gradient(90deg, #061724 0%, #061724 27%, #061724b3 46%, #06172400 72%), linear-gradient(0deg, #061724 0%, #06172430 28%, #06172400 57%, #06172488 100%); }
.hero-grid { position: absolute; z-index: -1; inset: 0; pointer-events: none; background-image: linear-gradient(#75e1ec0b 1px, transparent 1px), linear-gradient(90deg, #75e1ec0b 1px, transparent 1px); background-size: 68px 68px; mask-image: linear-gradient(90deg, #000 0%, #000 24%, transparent 80%); }
.hero-inner { display: grid; grid-template-columns: 1.12fr 1fr; align-items: stretch; min-height: 716px; gap: 15px; padding-block: 72px 64px; position: relative; }
.hero-copy { position: relative; z-index: 2; align-self: center; min-width: 0; }
.hero-overline { color: #72e3ec; font: 700 12px/1.4 var(--latin); letter-spacing: .26em; margin-bottom: 26px; }
.hero-kicker { color: #d3e6ed; font-size: 13px; font-weight: 700; letter-spacing: .06em; display: flex; align-items: center; gap: 10px; }
.hero-kicker::before { content: ""; width: 6px; height: 6px; background: var(--accent-bright); box-shadow: 0 0 12px #39c8d888; }
.hero h1 { margin-top: 21px; font-size: clamp(40px, 4.2vw, 60px); line-height: 1.48; letter-spacing: -.055em; font-weight: 800; }
.hero h1 .highlight { color: #72e3ec; white-space: nowrap; }
.hero-description { margin-top: 25px; max-width: 490px; font-size: 17px; line-height: 2; color: #d3e0e8; }
.hero .button-row { margin-top: 32px; gap: 12px; }
.hero .button { font-size: 14px; padding-inline: 22px; border-radius: 3px; }
.hero-video-link { background: #071c2db3; border-color: #96bcc677; color: #fff; gap: 12px; }
.hero-video-link:hover { background: #123d4d; border-color: #72e3ec; }
.play-icon { display: inline-block; width: 0; height: 0; border-top: 5px solid transparent; border-bottom: 5px solid transparent; border-left: 8px solid currentColor; flex-shrink: 0; }
.hero .text-link { font-size: 14px; color: #e3eff2; border-color: #718997; }
.hero .text-link:hover { color: #72e3ec; border-color: #72e3ec; }
.hero-consult { margin-top: 15px; }
.hero-meta { margin-top: 25px; color: #b2c8d5; font-size: 12px; letter-spacing: .02em; }
.hero-scene { min-width: 0; position: relative; pointer-events: none; }
.hero-watermark { position: absolute; top: -20px; right: -8px; color: transparent; -webkit-text-stroke: 1px #cae9ed45; font: 800 clamp(100px, 10.9vw, 165px)/1 var(--latin); letter-spacing: -.06em; }
.hero-reticle { position: absolute; inset: 82px 0 83px 10%; }
.hero-reticle span { position: absolute; width: 28px; height: 28px; border-color: #88eaf19e; border-style: solid; border-width: 0; }
.hero-reticle span:nth-child(1) { top: 0; left: 0; border-top-width: 1px; border-left-width: 1px; }
.hero-reticle span:nth-child(2) { top: 0; right: 0; border-top-width: 1px; border-right-width: 1px; }
.hero-reticle span:nth-child(3) { bottom: 0; left: 0; border-bottom-width: 1px; border-left-width: 1px; }
.hero-reticle span:nth-child(4) { bottom: 0; right: 0; border-bottom-width: 1px; border-right-width: 1px; }
.hero-sensor-label { position: absolute; right: 0; top: 106px; display: flex; align-items: center; gap: 9px; padding: 8px 11px; background: #061724bf; color: #c4f8fa; font: 700 9px/1.4 var(--latin); letter-spacing: .14em; border-right: 2px solid var(--accent-bright); }
.hero-sensor-label span { display: block; width: 5px; height: 5px; background: #72e3ec; border-radius: 50%; box-shadow: 0 0 9px #72e3ec; }
.hero-photo-label { position: absolute; right: 0; bottom: 0; padding-right: 15px; border-right: 2px solid var(--accent-bright); text-align: right; }
.hero-photo-label > span { display: block; font: 700 10px/1.8 var(--latin); letter-spacing: .2em; color: #b9d3df; }
.hero-photo-label strong { display: block; font: 700 27px/1.5 var(--latin); letter-spacing: .04em; color: #fff; }
.hero-photo-label p { color: #cadfe8; font-size: 12px; margin-top: 3px; }
.hero-caption { position: relative; display: flex; align-items: center; justify-content: space-between; border-top: 1px solid #526d7c66; gap: 25px; padding-block: 23px; }
.hero-caption p { color: #bbced9; font-size: 12px; }
.language-list { display: flex; flex-wrap: wrap; gap: 26px; list-style: none; font: 700 14px/1.5 var(--latin); color: #d0e4ed; }
.scroll-cue { display: flex; align-items: center; gap: 10px; font: 700 10px/1 var(--latin); letter-spacing: .17em; color: #abc3d1; }
.hero :focus-visible, .video-section :focus-visible, .support-section :focus-visible { outline-color: #8aecf2; }

/* Official conformity marks: preserve the source artwork and its proportions. */
.trust-strip { background: #fff; border-bottom: 1px solid var(--line); }
.trust-strip-inner { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); padding-block: 23px; }
.trust-item { display: grid; grid-template-columns: 49px minmax(0, 1fr) 20px; align-items: center; gap: 23px; padding: 10px 38px; }
.trust-item:first-child { padding-left: 0; }
.trust-item:last-child { border-left: 1px solid var(--line); padding-right: 0; }
.trust-item img { width: 49px; height: auto; }
.trust-copy { min-width: 0; }
.trust-copy > strong { display: block; font-size: 17px; line-height: 1.6; }
.trust-copy > span { display: flex; flex-wrap: wrap; align-items: center; gap: 5px 12px; margin-top: 5px; color: var(--muted); font-size: 13px; line-height: 1.8; }
.trust-number { display: inline-flex; align-items: center; gap: 5px; white-space: nowrap; font-family: var(--latin); font-weight: 600; letter-spacing: .025em; }
.radio-symbol { display: inline-grid; place-items: center; width: 1.16em; height: 1.27em; border: 1px solid currentColor; font-family: var(--latin); font-weight: 600; line-height: 1; letter-spacing: 0; }
.trust-item > .arrow { color: var(--accent); }
.trust-item:hover .trust-copy > strong { color: var(--accent); }

/* 04 — News, story, and section structure */
.news { padding-block: 45px; border-bottom: 1px solid var(--line); }
.news-inner { display: grid; grid-template-columns: 185px 1fr; gap: 64px; align-items: start; }
.news-title { font-size: 24px; line-height: 1.5; margin-top: 9px; }
.news-heading .eyebrow { font-size: 11px; }
.news-list { list-style: none; }
.news-list li + li { border-top: 1px solid var(--line); }
.news-item { display: grid; grid-template-columns: 128px 85px 1fr 25px; gap: 17px; align-items: center; min-height: 62px; padding-block: 14px; }
.news-date { color: var(--muted); font: 500 12px/1.5 var(--latin); }
.news-date small { display: block; margin-top: 3px; font: 500 10px/1.3 var(--font); }
.news-tag { font-size: 10px; font-weight: 700; text-align: center; line-height: 1.6; padding: 4px 6px; background: var(--wash); border: 1px solid var(--line); border-radius: 3px; }
.news-text { font-size: 14px; font-weight: 600; }
.news-item:hover .news-text, .news-item:hover .arrow { color: var(--accent); }
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: center; }
.story-image { position: relative; }
.story-image img { aspect-ratio: 1.12; object-fit: cover; object-position: 20% center; border-radius: 3px; }
.image-caption { display: flex; justify-content: space-between; gap: 16px; margin-top: 14px; font-size: 11px; color: var(--muted); }
.image-caption span:first-child { font: 700 10px/1.8 var(--latin); letter-spacing: .11em; }
.story-copy .section-heading { font-size: clamp(28px, 2.8vw, 38px); }
.story-points { display: grid; grid-template-columns: repeat(3, 1fr); margin-top: 35px; padding-top: 28px; border-top: 1px solid var(--line); gap: 20px; }
.story-point strong { display: block; color: var(--accent); font: 700 28px/1.2 var(--latin); }
.story-point h3 { margin-top: 10px; font-size: 16px; font-weight: 700; }
.story-point p { font-size: 13px; color: var(--muted); margin-top: 4px; }
.feature-strip { display: grid; grid-template-columns: repeat(3,1fr); margin-top: 58px; border-top: 1px solid var(--line); padding-top: 28px; gap: 35px; }
.feature-strip article { display: flex; gap: 20px; align-items: flex-start; }
.feature-icon { width: 42px; height: 42px; flex-shrink: 0; color: var(--accent); }
.feature-strip h3 { font-size: 17px; }
.feature-strip p { color: var(--muted); font-size: 14px; margin-top: 6px; }
.about-path { display: grid; grid-template-columns: .85fr 1.5fr; gap: 14px 45px; padding: 32px 36px; margin-top: 40px; border-left: 3px solid var(--accent); background: var(--wash); }
.about-path > div { grid-row: 1 / 3; }
.about-path .eyebrow { font-size: 10px; letter-spacing: .11em; }
.about-path h3 { margin-top: 13px; font-size: 22px; line-height: 1.7; }
.about-path > p { font-size: 15px; color: var(--muted); line-height: 1.95; }
.about-path .text-link { grid-column: 2; justify-self: start; font-size: 14px; }
.about-note { margin-top: 16px; }

/* Official video: a local, on-demand player; no automatic playback. */
.video-section { position: relative; overflow: hidden; background: #0a202e; color: #fff; }
.video-section::before { content: ""; position: absolute; width: 630px; height: 630px; left: -390px; top: -250px; border: 1px solid #39c8d830; border-radius: 50%; box-shadow: 0 0 0 55px #39c8d806, 0 0 0 110px #39c8d805; pointer-events: none; }
.video-layout { position: relative; display: grid; grid-template-columns: .82fr 1.4fr; align-items: center; gap: 64px; }
.video-copy, .video-showcase { min-width: 0; }
.video-section .eyebrow { color: #72e3ec; }
.video-copy .section-heading { font-size: clamp(28px, 2.8vw, 38px); }
.video-intro { margin-top: 24px; color: #c4d5df; line-height: 2; font-size: 16px; }
.motion-points { display: flex; flex-wrap: wrap; gap: 9px 17px; list-style: none; padding-block: 24px 26px; margin-top: 19px; border-top: 1px solid #486170; }
.motion-points li { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; }
.motion-points span { font: 500 10px/1 var(--latin); color: #72e3ec; }
.video-copy .text-link { font-size: 14px; border-color: #668492; }
.video-copy .text-link:hover { color: #72e3ec; border-color: #72e3ec; }
.video-chrome { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 12px 18px; border: 1px solid #41606e; border-bottom: 0; border-radius: 6px 6px 0 0; background: #112e3e; }
.video-chrome > span:first-child { display: flex; align-items: center; gap: 9px; color: #bad9e3; font: 700 10px/1.5 var(--latin); letter-spacing: .16em; }
.video-chrome > span:first-child::before { content: ""; width: 5px; height: 5px; border-radius: 50%; background: #72e3ec; }
.video-chrome > span:last-child { font-size: 11px; color: #bdd6e0; }
.video-frame { position: relative; background: #000; border: 1px solid #41606e; aspect-ratio: 16 / 9; }
.video-frame video { display: block; width: 100%; height: 100%; aspect-ratio: 16 / 9; object-fit: contain; background: #000; }
.video-play { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); border: 0; background: transparent; color: #fff; display: flex; flex-direction: column; align-items: center; gap: 11px; padding: 12px 20px; min-width: 178px; }
.video-play-circle { width: 72px; height: 72px; display: grid; place-items: center; border-radius: 50%; border: 1px solid #97eff4; background: #092230d9; box-shadow: 0 0 0 9px #74e5f018; transition: background .2s, box-shadow .2s; }
.video-play-circle .play-icon { border-top-width: 8px; border-bottom-width: 8px; border-left-width: 12px; margin-left: 5px; }
.video-play > span:last-child { font-size: 12px; font-weight: 700; padding: 4px 12px; background: #061724dc; border-radius: 3px; }
.video-play:hover .video-play-circle { background: #007f94; box-shadow: 0 0 0 13px #74e5f027; }
.video-play[aria-disabled="true"] { cursor: wait; }
.video-description { display: flex; justify-content: space-between; align-items: flex-start; gap: 25px; padding-top: 19px; }
.video-description h3 { font-size: 16px; line-height: 1.6; }
.video-description p { color: #bdd1dd; font-size: 13px; line-height: 1.8; margin-top: 6px; }
.video-file-link { display: flex; align-items: center; gap: 8px; color: #bcebf0; flex-shrink: 0; font-size: 12px; padding-block: 2px; border-bottom: 1px solid #486e7b; }
.video-file-link:hover { color: #fff; }
.video-file-link .arrow, .video-more .arrow { font-size: 17px; }
.video-status { color: #e2eff4; font-size: 13px; margin-top: 12px; }
.video-status:empty { display: none; }
.video-more { display: flex; flex-wrap: wrap; align-items: center; gap: 10px 21px; margin-top: 23px; padding-top: 20px; border-top: 1px solid #34505f; }
.video-more > span { font-size: 11px; color: #a7c0ce; }
.video-more a { display: inline-flex; gap: 7px; align-items: center; font-size: 12px; color: #d1e4eb; border-bottom: 1px solid transparent; }
.video-more a:hover { color: #72e3ec; border-color: #72e3ec; }

/* 05 — Four models and accessible product details */
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.product-card { position: relative; min-width: 0; background: white; border: 1px solid var(--line); border-radius: 9px; padding: 24px 22px; display: flex; flex-direction: column; transition: border-color .2s, transform .2s, box-shadow .2s; }
.product-card:hover { transform: translateY(-5px); border-color: #8fbbc3; box-shadow: 0 16px 32px rgb(20 42 56 / 6%); }
.product-card:first-child { border-top: 3px solid var(--accent); padding-top: 22px; }
.product-category { font: 700 10px/1.5 var(--latin); letter-spacing: .14em; color: var(--accent); }
.product-photo { height: 183px; display: flex; align-items: center; justify-content: center; margin: 13px -6px 19px; }
.product-photo img { width: 100%; height: 100%; object-fit: contain; }
.product-card h3 { font: 700 22px/1.3 var(--latin); letter-spacing: -.025em; }
.product-card h3 small { display: block; margin-top: 8px; font: 500 11px/1.5 var(--font); color: var(--muted); letter-spacing: 0; }
.product-card p { color: var(--muted); font-size: 14px; margin-top: 19px; }
.product-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-block: 19px 24px; list-style: none; }
.product-tags li { border: 1px solid var(--line); border-radius: 3px; padding: 2px 7px; font-size: 10px; line-height: 1.7; color: var(--muted); }
.product-detail-button { display: flex; align-items: center; justify-content: space-between; border: 0; border-top: 1px solid var(--line); width: 100%; padding: 14px 0 0; background: transparent; font-size: 13px; font-weight: 700; margin-top: auto; }
.product-detail-button:hover { color: var(--accent); }
.product-bottom { display: flex; align-items: center; justify-content: space-between; gap: 25px; margin-top: 28px; }
.product-bottom .small-note { max-width: 700px; }
.product-dialog { position: fixed; padding: 0; border: 0; width: min(880px, calc(100% - 32px)); max-height: calc(100dvh - 48px); border-radius: 15px; color: var(--ink); box-shadow: var(--shadow); overflow: auto; }
dialog::backdrop { background: rgb(9 24 34 / 72%); backdrop-filter: blur(5px); }
.dialog-close { position: absolute; z-index: 3; top: 16px; right: 16px; width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line); background: white; border-radius: 50%; font: 400 28px/1 var(--latin); }
.product-dialog-inner { display: grid; grid-template-columns: .9fr 1.1fr; gap: 32px; padding: 58px 42px 42px; }
.product-dialog-inner figure { align-self: center; }
.product-dialog-inner h2 { font: 700 29px/1.3 var(--latin); margin-block: 10px 20px; }
.product-dialog-inner p { font-size: 15px; color: var(--muted); }
.spec-list { margin-block: 24px; font-size: 14px; }
.spec-list div { display: grid; grid-template-columns: 95px 1fr; padding-block: 11px; gap: 15px; border-top: 1px solid var(--line); }
.spec-list dt { color: var(--muted); }
.spec-list dd { margin: 0; font-weight: 600; }

/* Conformity explanation: radio equipment and battery have separate scopes. */
.assurance-section { background: linear-gradient(180deg, #f2f8f9, #eaf4f5); border-block: 1px solid #dce9ec; }
.assurance-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 26px; }
.assurance-card { display: flex; flex-direction: column; min-width: 0; padding: 32px 36px; background: #fff; border: 1px solid #ccdee3; border-top: 3px solid var(--accent); border-radius: 7px; }
.assurance-card-top { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.assurance-scope { color: var(--accent); font-size: 14px; font-weight: 700; }
.assurance-category { color: var(--muted); font: 600 10px/1.5 var(--latin); letter-spacing: .14em; }
.assurance-mark-row { display: flex; flex-wrap: wrap; align-items: center; gap: 25px; min-height: 88px; margin-block: 30px 24px; }
.assurance-mark { width: 80px; height: auto; flex-shrink: 0; }
.assurance-number > span, .assurance-mark-caption > span { display: block; margin-bottom: 8px; color: var(--muted); font-size: 13px; }
.assurance-number strong { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font: 700 clamp(22px, 2vw, 28px)/1.4 var(--latin); white-space: nowrap; letter-spacing: .015em; }
.assurance-mark-caption strong { display: block; font-size: 21px; line-height: 1.5; }
.assurance-card h3 { font-size: 25px; line-height: 1.65; letter-spacing: -.025em; }
.assurance-card > p { color: var(--muted); font-size: 16px; line-height: 1.95; margin-top: 19px; }
.assurance-card > .assurance-note { margin-top: auto; padding-top: 24px; font-size: 14px; }
.assurance-footer { display: flex; align-items: center; justify-content: space-between; gap: 16px 35px; margin-top: 28px; }
.assurance-footer p { color: var(--muted); font-size: 15px; }
.assurance-footer .text-link { flex-shrink: 0; border-color: #9bbfc6; }

/* 06 — Learning tabs and course materials */
.learning-tabs { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); margin-bottom: 36px; }
.learning-tab { text-align: left; border: 0; padding: 19px 21px 23px; background: transparent; border-bottom: 3px solid transparent; color: var(--muted); }
.learning-tab > span { display: block; font: 700 10px/1.5 var(--latin); letter-spacing: .12em; margin-bottom: 7px; }
.learning-tab strong { font-size: 18px; font-weight: 700; }
.learning-tab small { display: block; font: 500 12px/1.5 var(--latin); margin-top: 9px; }
.learning-tab[aria-selected="true"] { background: var(--accent-soft); border-bottom-color: var(--accent); color: var(--ink); }
.learning-tab[aria-selected="true"] > span { color: var(--accent); }
.learning-tab:hover { background: #f0f7f8; }
.learning-panel { display: grid; grid-template-columns: 1.1fr 1fr; align-items: center; gap: 60px; }
.learning-photo { padding: 24px; background: #f0f5f7; border-radius: 8px; }
.learning-photo img { width: 100%; height: 340px; object-fit: contain; border-radius: 4px; }
.learning-photo--scene { padding: 0; }
.learning-photo--scene img { height: 390px; object-fit: cover; }
.learning-copy .step-label { font: 700 11px/1.5 var(--latin); letter-spacing: .14em; color: var(--accent); }
.learning-copy h3 { font-size: 29px; line-height: 1.6; margin-block: 12px 18px; }
.learning-copy > p { color: var(--muted); font-size: 16px; }
.lesson-example { padding: 19px 23px; border-left: 3px solid var(--accent-bright); background: var(--wash); margin-top: 25px; }
.lesson-example span { display: block; font-size: 11px; font-weight: 700; color: var(--accent); margin-bottom: 6px; }
.lesson-example p { font-size: 15px; font-weight: 700; }
.materials-band { display: flex; align-items: center; justify-content: space-between; gap: 38px; margin-top: 48px; padding: 32px 35px; border: 1px solid var(--line); border-radius: 7px; }
.materials-band h3 { font-size: 21px; line-height: 1.6; }
.materials-band p { font-size: 14px; color: var(--muted); margin-top: 10px; max-width: 700px; }
.materials-band .text-link { white-space: nowrap; }
.lesson-ideas { margin-top: 56px; padding-top: 36px; border-top: 1px solid var(--line); }
.lesson-ideas-heading h3 { margin-top: 13px; font-size: 24px; line-height: 1.6; }
.lesson-ideas-heading > p { max-width: 760px; color: var(--muted); font-size: 15px; margin-top: 13px; }
.lesson-ideas-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 30px; margin-top: 28px; }
.lesson-ideas-grid article { padding-left: 20px; border-left: 2px solid #99ced5; }
.lesson-idea-number { display: block; color: var(--accent); font: 700 10px/1.5 var(--latin); letter-spacing: .12em; }
.lesson-ideas-grid h4 { font-size: 17px; margin-top: 11px; line-height: 1.7; }
.lesson-ideas-grid p { margin-top: 10px; color: var(--muted); font-size: 14px; line-height: 1.95; }

/* 07 — Consultation support, accordions and downloads */
.support-section { position: relative; isolation: isolate; overflow: hidden; background: #0b1e2b; color: #fff; }
.support-section::before { content: ""; position: absolute; z-index: -2; inset: 0; background: url("../images/hero-altino.webp") right 44% / cover no-repeat; pointer-events: none; }
.support-section::after { content: ""; position: absolute; z-index: -1; inset: 0; background: linear-gradient(90deg, #0b1e2bf5 0%, #0b1e2be0 44%, #0b1e2b94 100%), linear-gradient(0deg, #0b1e2beb, #0b1e2b00); pointer-events: none; }
.support-section .eyebrow { color: var(--accent-bright); }
.support-section .section-top > p { color: #becdd5; }
.support-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 38px; margin-top: 52px; }
.support-card { border-top: 1px solid #415562; padding-top: 25px; }
.support-card > span { font: 500 13px/1 var(--latin); letter-spacing: .13em; color: var(--accent-bright); }
.support-card h3 { font-size: 23px; margin-top: 24px; line-height: 1.5; }
.support-card p { font-size: 15px; line-height: 1.9; color: #becdd5; margin-block: 16px 24px; }
.support-card .text-link { border-color: #526774; font-size: 14px; }
.support-card .text-link:hover { color: var(--accent-bright); }
.support-foot { margin-top: 42px; border-top: 1px solid #415562; padding-top: 22px; font-size: 13px; color: #becdd5; }
.resource-layout { display: grid; grid-template-columns: 310px 1fr; gap: 76px; align-items: start; }
.resource-list { min-width: 0; }
.resource-side .section-heading { font-size: 33px; }
.resource-side > p { font-size: 15px; color: var(--muted); margin-top: 21px; }
.catalog-links { display: grid; gap: 12px; margin-top: 28px; }
.catalog-link { display: flex; align-items: center; gap: 12px; padding: 15px 17px; border: 1px solid var(--line); border-radius: 5px; font-size: 13px; font-weight: 700; }
.catalog-link span:first-child { color: var(--accent); font: 700 10px/1 var(--latin); }
.catalog-link .arrow { margin-left: auto; }
.catalog-link:hover { background: var(--accent-soft); border-color: var(--accent); }
.resource-accordion { border-top: 1px solid var(--line); scroll-margin-top: 115px; }
.resource-accordion:last-child { border-bottom: 1px solid var(--line); }
.resource-accordion > summary { display: flex; align-items: center; gap: 18px; min-height: 105px; list-style: none; cursor: pointer; padding: 23px 5px; }
summary::-webkit-details-marker { display: none; }
.resource-accordion > summary:hover { color: var(--accent); }
.resource-number { color: var(--accent); font: 700 12px/1 var(--latin); width: 32px; flex-shrink: 0; }
.resource-heading { display: block; font-size: 19px; font-weight: 700; }
.resource-subheading { display: block; font-size: 12px; color: var(--muted); margin-top: 5px; font-weight: 500; }
.plus { width: 31px; height: 31px; position: relative; margin-left: auto; border: 1px solid var(--line); border-radius: 50%; flex-shrink: 0; }
.plus::before, .plus::after { content: ""; position: absolute; top: 14px; left: 9px; width: 11px; height: 1px; background: currentColor; }
.plus::after { transform: rotate(90deg); transition: transform .2s; }
details[open] > summary .plus::after { transform: rotate(0); }
.accordion-content { padding: 5px 0 32px 50px; }
.accessory-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.accessory-card { border: 1px solid var(--line); border-radius: 6px; padding: 18px; }
.accessory-card img { height: 142px; object-fit: contain; margin-bottom: 16px; }
.accessory-card h3 { font-size: 16px; }
.accessory-card p { font-size: 13px; color: var(--muted); margin-top: 7px; }
.accessory-card small { display: block; font-size: 11px; margin-top: 12px; color: var(--muted); }
.table-wrap { max-width: 100%; overflow-x: auto; margin-block: 19px; border: 1px solid var(--line); border-radius: 5px; }
.data-table { width: 100%; border-collapse: collapse; text-align: left; font-size: 13px; }
.data-table caption { text-align: left; padding: 14px 17px; background: var(--ink); color: white; font-size: 14px; font-weight: 700; }
.data-table th, .data-table td { padding: 13px 16px; vertical-align: middle; line-height: 1.7; border-bottom: 1px solid var(--line); }
.data-table thead th { color: var(--muted); background: var(--wash); font-size: 11px; font-weight: 700; }
.data-table tbody th { font-weight: 600; }
.data-table tbody tr:last-child > * { border-bottom: 0; }
.price { white-space: nowrap; font-variant-numeric: tabular-nums; }
.download-table { min-width: 535px; }
.download-table th:first-child { width: 32%; }
.download-link { display: inline-block; text-decoration: underline; text-underline-offset: 4px; color: var(--accent); font-size: 12px; font-weight: 700; margin: 3px 9px 3px 0; }
.download-link:hover { color: var(--ink); }
.download-table small { display: block; color: var(--muted); font-size: 11px; }
.resource-note { background: var(--wash); padding: 16px 18px; border-radius: 5px; font-size: 13px; color: var(--muted); line-height: 1.9; }
.resource-note strong { color: var(--ink); }
.resource-note code { background: #e2ebed; padding: 2px 7px; border-radius: 3px; font-family: var(--latin); font-size: 13px; }
.faq { border-top: 1px solid var(--line); margin-top: 65px; padding-top: 48px; display: grid; grid-template-columns: 310px 1fr; gap: 76px; }
.faq-heading .section-heading { font-size: 27px; }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 18px 0; cursor: pointer; list-style: none; font-size: 15px; font-weight: 700; }
.faq-item p { padding: 0 0 22px; color: var(--muted); font-size: 14px; line-height: 1.9; }
.faq-item .plus { width: 25px; height: 25px; border: 0; }
.faq-item .plus::before, .faq-item .plus::after { top: 12px; left: 7px; }

/* 08 — Gallery invitation, contact and footer */
.gallery-invitation { padding-block: 62px; background: var(--wash); border-block: 1px solid var(--line); }
.gallery-invitation-inner { display: flex; align-items: center; justify-content: space-between; gap: 35px; }
.gallery-invitation .eyebrow { font-size: 10px; }
.gallery-invitation h2 { margin-top: 13px; font-size: 27px; }
.gallery-invitation p { color: var(--muted); font-size: 14px; margin-top: 12px; }
.gallery-categories { font: 700 11px/1.7 var(--latin); letter-spacing: .11em; margin-top: 18px; color: var(--accent); }
.contact-section { padding-block: 96px; background: var(--accent-soft); }
.contact-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 76px; align-items: center; }
.contact-section .section-heading { font-size: clamp(31px, 3.1vw, 43px); }
.contact-copy > p { margin-top: 24px; color: var(--muted); font-size: 16px; max-width: 490px; }
.contact-card { background: #fff; border-radius: 10px; padding: 35px; box-shadow: 0 12px 28px rgb(20 42 56 / 4%); }
.contact-card h3 { font-size: 19px; }
.contact-topics { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-block: 21px 23px; }
.contact-topic { display: flex; justify-content: space-between; align-items: center; gap: 10px; border: 1px solid var(--line); padding: 11px 13px; border-radius: 4px; font-size: 12px; font-weight: 700; }
.contact-topic:hover { background: var(--wash); border-color: var(--accent); color: var(--accent); }
.contact-card .button { width: 100%; }
.contact-email { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: 21px; font-family: var(--latin); font-size: 16px; font-weight: 700; }
.copy-email { background: white; padding: 5px 10px; border: 1px solid var(--line); border-radius: 4px; font: 500 11px/1.5 var(--font); }
.copy-email:hover { border-color: var(--accent); }
.copy-status { min-height: 20px; font-size: 11px; color: var(--accent); }
.contact-phone { border-top: 1px solid var(--line); padding-top: 16px; font-size: 13px; color: var(--muted); }
.contact-phone a { margin-right: 13px; font: 700 18px/1.5 var(--latin); color: var(--ink); }
.contact-mail-note { font-size: 11px; color: var(--muted); text-align: center; margin-top: 9px; }
.site-footer { padding-block: 50px 24px; background: var(--ink-deep); color: white; }
.footer-top { display: flex; justify-content: space-between; gap: 50px; padding-bottom: 34px; }
.footer-brand p { margin-top: 22px; font-size: 12px; color: #b8c8d0; }
.footer-links { display: flex; flex-wrap: wrap; align-content: flex-start; gap: 22px 27px; max-width: 525px; font-size: 12px; }
.footer-links a:hover { color: var(--accent-bright); }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding-top: 21px; border-top: 1px solid #314651; font-size: 10px; color: #aebfc8; }
.footer-bottom a { text-decoration: underline; text-underline-offset: 4px; }
.back-top { position: fixed; right: 24px; bottom: 24px; z-index: 25; width: 45px; height: 45px; border-radius: 50%; background: #fff; border: 1px solid var(--line); display: grid; place-items: center; color: var(--ink); box-shadow: 0 4px 15px rgb(0 0 0 / 7%); transition: opacity .2s; }
.back-top:hover { background: var(--accent-soft); }

/* 09 — Dedicated activity gallery */
.breadcrumb { list-style: none; display: flex; flex-wrap: wrap; gap: 12px; font-size: 11px; color: var(--muted); padding-top: 27px; }
.breadcrumb li + li::before { content: "/"; margin-right: 12px; color: #9aadb6; }
.breadcrumb a:hover { color: var(--accent); }
.gallery-hero { background: var(--wash); overflow: hidden; }
.gallery-hero-inner { display: grid; grid-template-columns: .93fr 1.07fr; align-items: center; gap: 70px; padding-block: 61px 74px; }
.gallery-hero h1 { margin-block: 23px; font-size: clamp(34px, 3.65vw, 50px); line-height: 1.55; letter-spacing: -.045em; }
.gallery-hero .hero-description { font-size: 16px; color: var(--muted); }
.gallery-hero figure { position: relative; }
.gallery-hero figure img { aspect-ratio: 1.5; object-fit: cover; border-radius: 7px; }
.gallery-hero figcaption { position: absolute; bottom: 0; left: 0; padding: 14px 21px; color: #fff; background: rgb(16 36 48 / 90%); font-size: 11px; border-top-right-radius: 6px; }
.gallery-main { padding-block: 65px 96px; }
.gallery-toolbar { display: flex; justify-content: space-between; gap: 20px; align-items: center; padding-bottom: 36px; border-bottom: 1px solid var(--line); margin-bottom: 58px; }
.gallery-filters { display: flex; flex-wrap: wrap; gap: 10px; }
.filter-button { min-height: 43px; padding: 10px 21px; border: 1px solid var(--line); background: #fff; font-size: 13px; font-weight: 700; border-radius: 4px; }
.filter-button[aria-pressed="true"] { background: var(--ink); color: white; border-color: var(--ink); }
.filter-button:hover:not([aria-pressed="true"]) { background: var(--accent-soft); border-color: var(--accent); }
.gallery-count { font-size: 12px; color: var(--muted); white-space: nowrap; }
.event-entry { margin-top: 64px; padding-top: 60px; border-top: 1px solid var(--line); scroll-margin-top: 118px; }
.event-entry:first-child { margin-top: 0; padding-top: 0; border-top: 0; }
.event-header { display: grid; grid-template-columns: 1fr 1fr; gap: 50px; margin-bottom: 27px; }
.event-meta { display: flex; align-items: center; flex-wrap: wrap; gap: 13px; font-size: 11px; color: var(--muted); }
.event-category { display: inline-flex; align-items: center; min-height: 25px; color: var(--accent); background: var(--accent-soft); border-radius: 3px; padding: 3px 9px; font-weight: 700; }
.event-header h2 { font-size: 25px; line-height: 1.55; margin-top: 15px; }
.event-description { font-size: 14px; color: var(--muted); line-height: 1.9; }
.event-description .text-link { display: inline-flex; font-size: 12px; margin-top: 11px; }
.event-photos { display: grid; grid-template-columns: 1.6fr 1fr 1fr; grid-template-rows: 200px 200px; gap: 14px; }
.event-photo { padding: 0; border: 0; background: var(--wash); display: block; position: relative; overflow: hidden; border-radius: 5px; }
.event-photo:first-child { grid-column: 1 / 2; grid-row: 1 / 3; }
.event-photo:nth-child(2) { grid-column: 2 / 4; grid-row: 1; }
.event-photo img { height: 100%; object-fit: cover; transition: transform .45s; }
.event-photo:hover img { transform: scale(1.035); }
.photo-expand { position: absolute; bottom: 12px; right: 12px; width: 30px; height: 30px; background: rgb(255 255 255 / 94%); color: var(--ink); border-radius: 50%; display: grid; place-items: center; font: 400 20px/1 var(--latin); }
.gallery-archive-note { padding: 20px 25px; background: var(--wash); border-radius: 5px; margin-top: 50px; color: var(--muted); font-size: 12px; }
.lightbox { position: fixed; padding: 0; border: 0; background: var(--ink-deep); color: white; border-radius: 10px; width: min(1120px, calc(100% - 28px)); max-height: calc(100dvh - 32px); overflow: auto; }
.lightbox .dialog-close { background: white; color: var(--ink); }
.lightbox-image-wrap { min-height: 160px; padding: 20px 60px 0; display: flex; align-items: center; justify-content: center; }
.lightbox-image-wrap img { max-height: 73dvh; width: auto; max-width: 100%; object-fit: contain; }
.lightbox-caption { padding: 17px 70px 25px; text-align: center; font-size: 13px; }
.lightbox-caption p { color: #c0d0d8; font-size: 11px; margin-top: 5px; }
.lightbox-prev, .lightbox-next { position: absolute; top: 45%; border: 1px solid #657781; border-radius: 50%; width: 38px; height: 38px; background: rgb(16 36 48 / 90%); color: white; display: grid; place-items: center; font: 400 27px/1 var(--latin); }
.lightbox-prev { left: 12px; }
.lightbox-next { right: 12px; }

/* 10 — Responsive layout and accessibility preferences */
@media (min-width: 1550px) {
    .hero-inner { min-height: 752px; }
}

@media (max-width: 1190px) {
    .container { width: calc(100% - 64px); }
    .site-nav { gap: 12px; }
    .site-nav > a:not(.nav-contact) { font-size: 12px; }
    .header-inner { gap: 25px; }
    .hero h1 { font-size: 46px; }
    .hero-inner { min-height: 696px; }
    .hero-description { font-size: 15px; }
    .hero .button { padding-inline: 20px; font-size: 13px; }
    .hero .button-row { gap: 15px; }
    .story-grid { gap: 44px; }
    .product-grid { gap: 14px; }
    .product-card { padding-inline: 17px; }
    .product-photo { height: 152px; }
    .product-card h3 { font-size: 19px; }
    .resource-layout, .faq { grid-template-columns: 270px 1fr; gap: 44px; }
    .learning-panel { gap: 40px; }
    .video-layout { gap: 38px; }
    .video-description { display: block; }
    .video-file-link { display: inline-flex; margin-top: 12px; }
    .contact-layout { gap: 44px; }
    .contact-card { padding: 28px; }
}

@media (max-width: 990px) {
    .site-header { height: 76px; }
    .menu-toggle { display: block; }
    .site-nav { display: none; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch; gap: 0; background: white; padding: 18px 32px 26px; border-bottom: 1px solid var(--line); box-shadow: 0 18px 25px rgb(20 42 56 / 7%); max-height: calc(100dvh - 76px); overflow: auto; }
    .site-nav.is-open { display: flex; }
    .site-nav > a:not(.nav-contact) { font-size: 15px; border-bottom: 1px solid var(--line); padding-block: 13px; }
    .site-nav > a::after { display: none; }
    .site-nav .nav-contact { margin-top: 18px; justify-content: center; min-height: 49px; }
    .hero h1 { font-size: 39px; }
    .hero-backdrop { left: 30%; }
    .hero::before { background: linear-gradient(90deg, #061724 0%, #061724e8 34%, #061724bd 48%, #06172433 82%), linear-gradient(0deg, #061724, transparent 50%, #06172466); }
    .hero-description br { display: none; }
    .hero-inner { min-height: 656px; gap: 10px; grid-template-columns: 1.3fr 1fr; padding-block: 55px; }
    .hero-watermark { font-size: 92px; top: 0; }
    .hero-reticle { inset: 90px 0 106px; }
    .hero-sensor-label { top: 115px; }
    .hero-photo-label strong { font-size: 23px; }
    .hero-photo-label p { font-size: 11px; }
    .hero-caption { flex-wrap: wrap; padding-block: 18px; }
    .hero-caption > div { display: none; }
    .hero-meta { font-size: 12px; }
    .section { padding-block: 80px; }
    .news-inner { grid-template-columns: 155px 1fr; gap: 25px; }
    .news-item { grid-template-columns: 108px 1fr 16px; gap: 14px; }
    .news-tag { display: none; }
    .story-grid { gap: 32px; }
    .story-copy .section-heading { font-size: 29px; }
    .story-copy .section-intro { font-size: 15px; }
    .story-points { gap: 9px; }
    .story-point h3 { font-size: 14px; }
    .story-point p { font-size: 12px; }
    .feature-strip { gap: 20px; }
    .feature-strip article { gap: 12px; }
    .feature-icon { width: 32px; height: 32px; }
    .feature-strip h3 { font-size: 15px; }
    .feature-strip p { font-size: 13px; }
    .video-layout { grid-template-columns: .85fr 1.15fr; gap: 30px; }
    .video-copy .section-heading { font-size: 29px; }
    .video-intro { font-size: 15px; }
    .motion-points { gap: 9px 13px; }
    .motion-points li { font-size: 12px; }
    .product-grid { grid-template-columns: 1fr 1fr; gap: 22px; }
    .product-card { padding: 26px; }
    .product-photo { height: 215px; margin-bottom: 17px; }
    .product-card h3 { font-size: 25px; }
    .product-card p { font-size: 15px; }
    .product-tags li { font-size: 12px; }
    .product-category { font-size: 11px; }
    .learning-panel { gap: 30px; }
    .learning-photo { padding: 15px; }
    .learning-photo img { height: 280px; }
    .learning-photo--scene { padding: 0; }
    .learning-photo--scene img { height: 330px; }
    .learning-copy h3 { font-size: 24px; }
    .learning-copy > p { font-size: 14px; }
    .learning-tab { padding: 17px 14px; }
    .learning-tab strong { font-size: 16px; }
    .materials-band { padding: 25px; gap: 25px; }
    .materials-band h3 { font-size: 19px; }
    .support-grid { gap: 25px; }
    .support-card h3 { font-size: 21px; }
    .resource-layout, .faq { grid-template-columns: 1fr; gap: 32px; }
    .resource-side { display: grid; grid-template-columns: 1fr 1fr; gap: 0 40px; }
    .resource-side > p { grid-column: 1; }
    .resource-side .catalog-links { grid-column: 2; grid-row: 1 / 4; align-self: center; margin-top: 0; }
    .resource-side .eyebrow { grid-column: 1; }
    .resource-side .section-heading { grid-column: 1; }
    .resource-side .section-heading br { display: none; }
    .faq-heading .section-heading { margin-top: 12px; }
    .contact-layout { gap: 30px; }
    .contact-copy > p { font-size: 15px; }
    .contact-topics { grid-template-columns: 1fr; }
    .gallery-hero-inner { gap: 35px; }
    .gallery-hero h1 { font-size: 34px; }
    .event-photos { grid-template-rows: 150px 150px; }
    .event-header h2 { font-size: 22px; }
}

@media (max-width: 700px) {
    html { scroll-padding-top: 92px; }
    body { font-size: 16px; }
    .container { width: calc(100% - 40px); }
    .section { padding-block: 68px; }
    .brand-word { font-size: 28px; }
    .brand-mark { width: 29px; height: 31px; }
    .section-heading { font-size: 29px; margin-top: 16px; }
    .section-top { display: block; margin-bottom: 28px; }
    .section-top > p { margin-top: 21px; font-size: 15px; max-width: none; }
    .section-intro { font-size: 15px; margin-top: 19px; }
    .eyebrow { font-size: 11px; }
    .hero-inner { grid-template-columns: 1fr; padding-block: 43px 23px; gap: 0; min-height: auto; }
    .hero-backdrop { inset: clamp(196px, calc(102px + 28vw), 296px) 0 auto; width: 100%; height: 350px; mask-image: linear-gradient(180deg, transparent, #000 17%, #000 78%, transparent); }
    .hero-backdrop img { object-position: center; }
    .hero::before { background: none; }
    .hero-grid { background-size: 48px 48px; mask-image: linear-gradient(180deg, #000, transparent 76%); }
    .hero-overline { order: 1; font-size: 10px; margin-bottom: 22px; letter-spacing: .24em; }
    .hero-copy { display: contents; }
    .hero-kicker { order: 2; font-size: 11px; }
    .hero h1 { order: 3; font-size: clamp(33px, 8.8vw, 51px); margin-top: 22px; line-height: 1.45; letter-spacing: -.045em; }
    .hero-description { order: 5; margin-top: 0; font-size: 15px; max-width: 500px; }
    .hero-description br { display: initial; }
    .hero .button-row { order: 6; margin-top: 25px; gap: 10px; }
    .hero .button { font-size: 13px; min-height: 51px; padding: 13px 18px; }
    .hero .text-link { font-size: 13px; gap: 11px; }
    .hero-consult { order: 7; justify-self: start; margin-top: 13px; }
    .hero-meta { order: 8; margin-top: 19px; font-size: 11px; line-height: 1.9; }
    .hero-scene { order: 4; height: 264px; margin-block: 18px 21px; }
    .hero-watermark { right: 0; top: 8px; font-size: clamp(77px, 21vw, 123px); -webkit-text-stroke-color: #cae9ed35; }
    .hero-reticle { inset: 54px 0 51px; }
    .hero-reticle span { width: 20px; height: 20px; }
    .hero-sensor-label { top: 72px; font-size: 8px; padding: 6px 8px; }
    .hero-photo-label { bottom: 0; right: 0; padding: 5px 11px; background: #061724c9; }
    .hero-photo-label > span { font-size: 8px; }
    .hero-photo-label strong { font-size: 22px; }
    .hero-photo-label p { font-size: 10px; }
    .hero-caption { gap: 10px; padding-block: 18px; }
    .hero-caption p { font-size: 11px; }
    .language-list { font-size: 12px; gap: 17px; }
    .trust-strip-inner { grid-template-columns: 1fr; padding-block: 6px; }
    .trust-item, .trust-item:first-child, .trust-item:last-child { grid-template-columns: 42px minmax(0, 1fr) 18px; gap: 18px; padding: 19px 0; border-left: 0; }
    .trust-item:last-child { border-top: 1px solid var(--line); }
    .trust-item img { width: 42px; }
    .trust-copy > strong { font-size: 16px; }
    .trust-copy > span { font-size: 13px; }
    .about-path { grid-template-columns: 1fr; gap: 19px; margin-top: 30px; padding: 25px 22px; }
    .about-path > div { grid-row: auto; }
    .about-path h3 { font-size: 21px; }
    .about-path h3 br { display: none; }
    .about-path > p { font-size: 15px; }
    .about-path .text-link { grid-column: 1; }
    .assurance-grid { grid-template-columns: 1fr; gap: 20px; }
    .assurance-card { padding: 26px; }
    .assurance-mark-row { gap: 20px; margin-block: 25px 23px; }
    .assurance-mark { width: 70px; }
    .assurance-number strong { font-size: 25px; }
    .assurance-card h3 { font-size: 24px; }
    .assurance-card > p { font-size: 15px; }
    .assurance-card > .assurance-note { font-size: 14px; padding-top: 21px; }
    .assurance-footer { align-items: flex-start; flex-direction: column; margin-top: 23px; }
    .assurance-footer p { font-size: 14px; }
    .assurance-footer .text-link { font-size: 14px; }
    .lesson-ideas { margin-top: 38px; padding-top: 30px; }
    .lesson-ideas-heading h3 { font-size: 22px; }
    .lesson-ideas-grid { grid-template-columns: 1fr; gap: 25px; }
    .lesson-ideas-grid p { font-size: 15px; }
    .news { padding-block: 30px; }
    .news-inner { grid-template-columns: 1fr; gap: 16px; }
    .news-heading { display: flex; align-items: center; gap: 21px; }
    .news-title { margin: 0; font-size: 20px; }
    .news-heading .eyebrow { font-size: 10px; }
    .news-item { grid-template-columns: 86px 1fr 15px; gap: 10px; min-height: 68px; }
    .news-date { font-size: 11px; }
    .news-date small { font-size: 10px; }
    .news-text { font-size: 14px; line-height: 1.8; }
    .story-grid { grid-template-columns: 1fr; gap: 34px; }
    .story-image { order: 2; }
    .story-image img { aspect-ratio: 1.3; }
    .story-copy .section-heading { font-size: 29px; }
    .story-points { margin-top: 27px; padding-top: 23px; gap: 16px; }
    .story-point strong { font-size: 25px; }
    .story-point h3 { font-size: 15px; }
    .feature-strip { grid-template-columns: 1fr; gap: 23px; margin-top: 29px; }
    .feature-strip article { gap: 20px; }
    .feature-strip h3 { font-size: 16px; }
    .feature-strip p { font-size: 14px; margin-top: 5px; }
    .feature-icon { width: 37px; height: 37px; }
    .video-layout { grid-template-columns: 1fr; gap: 34px; }
    .video-copy .section-heading { font-size: 29px; }
    .video-intro { margin-top: 20px; }
    .motion-points { padding-block: 19px; margin-top: 20px; gap: 20px; }
    .motion-points li { font-size: 13px; }
    .video-chrome { padding: 11px 13px; }
    .video-chrome > span:first-child { font-size: 9px; }
    .video-play-circle { width: 58px; height: 58px; }
    .video-play { gap: 7px; }
    .video-play > span:last-child { font-size: 11px; }
    .video-description { padding-top: 17px; }
    .video-description h3 { font-size: 15px; }
    .video-more { gap: 12px 18px; padding-top: 17px; margin-top: 20px; }
    .video-more > span { flex-basis: 100%; }
    .product-grid { gap: 13px; }
    .product-card { padding: 18px 14px; border-radius: 6px; }
    .product-card:first-child { padding-top: 16px; }
    .product-category { font-size: 8px; letter-spacing: .1em; }
    .product-photo { height: clamp(108px, 29vw, 175px); margin: 13px -3px 17px; }
    .product-card h3 { font-size: clamp(16px, 4.2vw, 22px); }
    .product-card h3 small { font-size: 10px; line-height: 1.8; margin-top: 6px; }
    .product-card p { font-size: 12px; line-height: 1.95; margin-top: 15px; }
    .product-tags { gap: 4px; margin-block: 15px 20px; }
    .product-tags li { padding: 2px 5px; font-size: 9px; }
    .product-detail-button { font-size: 12px; padding-top: 12px; }
    .product-bottom { display: block; margin-top: 22px; }
    .product-bottom .small-note { font-size: 12px; }
    .product-bottom .text-link { margin-top: 15px; font-size: 13px; }
    .product-dialog-inner { grid-template-columns: 1fr; padding: 58px 25px 30px; gap: 20px; }
    .product-dialog-inner figure img { height: 190px; object-fit: contain; }
    .product-dialog-inner h2 { font-size: 28px; }
    .learning-tabs { grid-template-columns: 1fr 1fr; gap: 8px; border-bottom: 0; margin-bottom: 25px; }
    .learning-tab { padding: 14px; border: 1px solid var(--line); border-bottom-width: 3px; border-radius: 4px; }
    .learning-tab[aria-selected="true"] { border-bottom-color: var(--accent); }
    .learning-tab > span { font-size: 9px; margin-bottom: 5px; }
    .learning-tab strong { font-size: 15px; }
    .learning-tab small { font-size: 10px; margin-top: 5px; }
    .learning-panel { grid-template-columns: 1fr; gap: 27px; }
    .learning-photo { padding: 17px; }
    .learning-photo img { height: 255px; }
    .learning-photo--scene { padding: 0; }
    .learning-photo--scene img { height: 270px; }
    .learning-copy h3 { font-size: 25px; margin-block: 10px 15px; }
    .learning-copy > p { font-size: 15px; }
    .lesson-example { margin-top: 20px; padding: 16px 20px; }
    .materials-band { display: block; padding: 23px; margin-top: 31px; }
    .materials-band h3 { font-size: 19px; }
    .materials-band p { font-size: 13px; }
    .materials-band .text-link { font-size: 13px; margin-top: 15px; }
    .support-grid { grid-template-columns: 1fr; gap: 34px; margin-top: 30px; }
    .support-card { padding-top: 18px; }
    .support-card h3 { margin-top: 17px; font-size: 22px; }
    .support-card p { margin-block: 13px 12px; }
    .support-foot { font-size: 12px; margin-top: 29px; }
    .resource-side { display: block; }
    .resource-side .section-heading { font-size: 29px; }
    .resource-side .catalog-links { margin-top: 25px; }
    .catalog-links { grid-template-columns: 1fr 1fr; gap: 10px; }
    .catalog-link { flex-wrap: wrap; padding: 13px 12px; font-size: 11px; gap: 8px; }
    .catalog-link span:first-child { font-size: 9px; }
    .catalog-link .arrow { font-size: 17px; }
    .resource-layout { gap: 25px; }
    .resource-accordion > summary { min-height: 94px; gap: 9px; }
    .resource-number { width: 25px; font-size: 10px; }
    .resource-heading { font-size: 17px; }
    .resource-subheading { font-size: 11px; }
    .plus { width: 28px; height: 28px; }
    .plus::before, .plus::after { top: 13px; left: 8px; }
    .accordion-content { padding-left: 0; padding-bottom: 24px; }
    .accessory-grid { gap: 12px; }
    .accessory-card { padding: 13px; }
    .accessory-card img { height: 105px; margin-bottom: 13px; }
    .accessory-card h3 { font-size: 14px; }
    .accessory-card p { font-size: 14px; }
    .accessory-card small { font-size: 12px; }
    .data-table th, .data-table td { padding: 11px 12px; }
    .data-table { font-size: 12px; }
    .faq { gap: 21px; margin-top: 43px; padding-top: 34px; }
    .faq-item summary { font-size: 14px; gap: 12px; }
    .faq-item p { font-size: 13px; }
    .gallery-invitation { padding-block: 44px; }
    .gallery-invitation-inner { display: block; }
    .gallery-invitation h2 { font-size: 23px; }
    .gallery-invitation .button { margin-top: 24px; width: 100%; font-size: 14px; }
    .gallery-categories { font-size: 9px; }
    .contact-section { padding-block: 62px; }
    .contact-layout { grid-template-columns: 1fr; gap: 31px; }
    .contact-section .section-heading { font-size: 32px; }
    .contact-copy > p { margin-top: 18px; }
    .contact-card { padding: 25px; }
    .contact-topics { grid-template-columns: 1fr 1fr; gap: 8px; }
    .contact-topic { padding: 10px; font-size: 11px; }
    .contact-email { font-size: 16px; }
    .contact-phone { font-size: 11px; }
    .contact-phone a { font-size: 18px; }
    .footer-top { display: block; padding-bottom: 29px; }
    .footer-brand p { margin-top: 17px; }
    .footer-links { margin-top: 29px; gap: 16px 23px; font-size: 11px; }
    .footer-bottom { flex-direction: column; align-items: flex-start; gap: 12px; font-size: 9px; }
    .back-top { width: 39px; height: 39px; right: 15px; bottom: 15px; }
    .breadcrumb { font-size: 10px; padding-top: 21px; }
    .gallery-hero-inner { grid-template-columns: 1fr; gap: 32px; padding-block: 40px 43px; }
    .gallery-hero h1 { font-size: 35px; margin-block: 20px; }
    .gallery-hero .hero-description { font-size: 15px; }
    .gallery-hero figure img { aspect-ratio: 1.35; }
    .gallery-hero figcaption { font-size: 10px; padding: 11px 15px; }
    .gallery-main { padding-block: 34px 60px; }
    .gallery-toolbar { align-items: flex-start; flex-direction: column; gap: 15px; padding-bottom: 25px; margin-bottom: 36px; }
    .gallery-filters { gap: 7px; }
    .filter-button { padding: 10px 13px; font-size: 12px; min-height: 43px; }
    .gallery-count { font-size: 11px; }
    .event-entry { margin-top: 41px; padding-top: 38px; }
    .event-header { grid-template-columns: 1fr; gap: 17px; margin-bottom: 21px; }
    .event-header h2 { font-size: 22px; }
    .event-meta { font-size: 10px; gap: 10px; }
    .event-description { font-size: 13px; }
    .event-photos { grid-template-columns: 1fr 1fr; grid-template-rows: 235px 136px 136px; gap: 10px; }
    .event-photo:first-child { grid-column: 1 / 3; grid-row: 1; }
    .event-photo:nth-child(2) { grid-column: 1 / 3; grid-row: 2; }
    .event-photo:nth-child(3) { grid-column: 1; grid-row: 3; }
    .event-photo:nth-child(4) { grid-column: 2; grid-row: 3; }
    .photo-expand { width: 26px; height: 26px; bottom: 9px; right: 9px; font-size: 18px; }
    .lightbox-image-wrap { padding: 55px 12px 0; }
    .lightbox-image-wrap img { max-height: 65dvh; }
    .lightbox-caption { padding: 19px 45px 22px; font-size: 12px; }
    .lightbox-prev, .lightbox-next { width: 32px; height: 32px; font-size: 22px; top: auto; bottom: 21px; }
    .lightbox-prev { left: 9px; }
    .lightbox-next { right: 9px; }
}

@media (max-width: 520px) {
    .product-grid { grid-template-columns: 1fr; gap: 20px; }
    .product-card, .product-card:first-child { padding: 25px; }
    .product-photo { height: 220px; margin-block: 12px 19px; }
    .product-category { font-size: 10px; }
    .product-card h3 { font-size: 26px; }
    .product-card h3 small { font-size: 12px; }
    .product-card p { font-size: 15px; }
    .product-tags li { font-size: 12px; padding: 3px 8px; }
    .product-detail-button { font-size: 14px; }
    .resource-subheading { font-size: 12px; }
    .accessory-card p { font-size: 14px; }
}

@media (max-width: 360px) {
    .container { width: calc(100% - 30px); }
    .hero h1 { font-size: 30px; }
    .hero .button-row { gap: 10px; }
    .hero .button { font-size: 13px; padding-inline: 17px; gap: 11px; }
    .hero .text-link { font-size: 12px; }
    .trust-item, .trust-item:first-child, .trust-item:last-child { gap: 13px; }
    .trust-copy > strong { font-size: 15px; }
    .assurance-card { padding: 22px 20px; }
    .assurance-mark { width: 61px; }
    .assurance-mark-row { gap: 16px; }
    .assurance-number strong { font-size: 22px; gap: 7px; }
    .assurance-card h3 { font-size: 22px; }
    .assurance-mark-caption strong { font-size: 19px; }
    .product-grid { grid-template-columns: 1fr; }
    .product-card h3 { font-size: 24px; }
    .product-card p { font-size: 15px; }
    .product-photo { height: 205px; }
    .product-tags li { font-size: 11px; }
    .contact-card { padding: 21px; }
    .contact-topics { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}

@media print {
    .site-header { position: static; }
    .menu-toggle, .back-top, .copy-email, .gallery-filters, dialog { display: none !important; }
    .section { padding-block: 35px; }
    .container { width: 100%; }
    .hero-inner { min-height: auto; }
    .hero { background: white; color: var(--ink); }
    .hero-backdrop, .hero::before, .hero-grid, .hero-scene { display: none; }
    .hero h1 .highlight, .hero-description, .hero-kicker, .hero-overline, .hero-meta, .hero-caption p, .language-list, .hero .text-link { color: var(--ink); }
    .video-section { background: white; color: var(--ink); }
    .video-section::before, .video-chrome, .video-play { display: none; }
    .video-intro, .video-description p, .video-more > span, .video-more a, .video-file-link { color: var(--ink); }
    .product-card, .event-entry { break-inside: avoid; }
    .site-footer { margin-top: 30px; }
}