:root {
  --orange: #ff5a00;
  --orange-dark: #d74700;
  --ink: #111315;
  --carbon: #1b1e20;
  --steel: #282c2f;
  --paper: #f5f4ef;
  --white: #ffffff;
  --muted: #6a6f72;
  --line: #d6d6d0;
  --pad: clamp(22px, 6.6vw, 112px);
  --display: "Barlow Condensed", "Arial Narrow", sans-serif;
  --body: Inter, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 16px/1.6 var(--body);
}
body.nav-locked { overflow: hidden; }
a { color: inherit; }
button, input, select, textarea { font: inherit; }
button { color: inherit; }

.scroll-progress {
  --scroll-progress: 0;
  position: fixed;
  z-index: 100;
  inset: 0 0 auto;
  height: 3px;
  background: var(--orange);
  transform: scaleX(var(--scroll-progress));
  transform-origin: left center;
  will-change: transform;
}

::selection { background: var(--orange); color: var(--white); }
.skip-link {
  position: fixed;
  z-index: 100;
  top: 10px;
  left: 10px;
  padding: 10px 14px;
  background: var(--white);
  color: var(--ink);
  transform: translateY(-160%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: absolute;
  z-index: 20;
  inset: 0 0 auto;
  height: 88px;
  padding: 0 var(--pad);
  display: flex;
  align-items: center;
  gap: clamp(22px, 4vw, 72px);
  color: var(--white);
  border-bottom: 1px solid rgba(255,255,255,.16);
  transition: background .25s ease, height .25s ease;
}
.site-header.is-scrolled {
  position: fixed;
  height: 72px;
  background: rgba(17,19,21,.96);
  backdrop-filter: blur(12px);
}
.brand {
  display: inline-flex;
  flex-direction: column;
  flex: none;
  text-decoration: none;
  line-height: 1;
}
.brand strong {
  font: 800 27px/.84 var(--display);
  letter-spacing: .08em;
}
.brand span {
  margin-top: 7px;
  font: 600 7px/1 var(--body);
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--orange);
}
.site-header nav {
  display: flex;
  align-items: center;
  gap: clamp(16px, 2.2vw, 34px);
  margin-left: auto;
}
.site-header nav a {
  position: relative;
  text-decoration: none;
  font-size: 12px;
  font-weight: 600;
}
.site-header nav a::after {
  content: "";
  position: absolute;
  inset: auto 0 -8px;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .2s ease;
}
.site-header nav a:hover::after,
.site-header nav a:focus-visible::after { transform: scaleX(1); }
.site-header nav a.is-current { color: var(--orange); }
.site-header nav a.is-current::after { transform: scaleX(1); }
.header-cta {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 0 17px;
  text-decoration: none;
  background: var(--orange);
  color: var(--white);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
  transition: background .25s ease, transform .25s ease, box-shadow .25s ease;
}
.header-cta span { margin-left: 18px; font-size: 17px; }
.header-cta:hover, .header-cta:focus-visible { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(255,90,0,.22); }
.menu-toggle { display: none; }

.hero {
  position: relative;
  min-height: 800px;
  height: 100svh;
  padding: 140px var(--pad) 54px;
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(350px, .88fr);
  align-items: center;
  gap: clamp(42px, 7vw, 130px);
  overflow: hidden;
  background:
    radial-gradient(circle at 77% 44%, rgba(255,90,0,.2), transparent 28%),
    linear-gradient(120deg, #101214 0 57%, #1c2023 57% 100%);
  color: var(--white);
}
.hero::before {
  content: "SILVATY";
  position: absolute;
  left: -1.5vw;
  bottom: -8.5vw;
  font: 900 min(20vw, 290px)/1 var(--display);
  letter-spacing: -.035em;
  color: rgba(255,255,255,.022);
  pointer-events: none;
}
.hero-grid,
.corporate-grid {
  position: absolute;
  inset: 0;
  opacity: .16;
  background-image:
    linear-gradient(rgba(255,255,255,.12) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.12) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(90deg, transparent 20%, black 100%);
}
.hero-grid { animation: grid-drift 18s linear infinite alternate; }
.hero-copy, .product-stage { position: relative; z-index: 1; }
.eyebrow,
.section-label,
.section-index {
  margin: 0;
  font: 600 11px/1.2 var(--body);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.eyebrow { color: #d9d9d4; display: flex; align-items: center; gap: 14px; }
.eyebrow span { color: var(--orange); }
.eyebrow::after { content: ""; width: 44px; height: 1px; background: var(--orange); }
h1, h2, h3, p { margin-top: 0; }
h1 {
  max-width: 790px;
  margin: 23px 0 26px;
  font: 800 clamp(64px, 7.4vw, 126px)/.84 var(--display);
  letter-spacing: -.04em;
  text-transform: uppercase;
}
h1 em, h2 em {
  color: var(--orange);
  font-style: italic;
  font-weight: 700;
}
.hero-lead { max-width: 660px; color: #c4c7c8; font-size: clamp(15px, 1.3vw, 18px); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }
.button {
  border: 0;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  min-width: 205px;
  min-height: 54px;
  padding: 0 19px;
  text-decoration: none;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .28s cubic-bezier(.2,.75,.25,1), background .25s ease, border-color .25s ease, box-shadow .28s ease;
}
.button span { font-size: 18px; margin-left: 22px; }
.button-primary { background: var(--orange); color: var(--white); }
.button-primary:hover, .button-primary:focus-visible { background: #ff7024; transform: translateY(-3px); box-shadow: 0 14px 34px rgba(255,90,0,.2); }
.button-outline { border: 1px solid rgba(255,255,255,.38); color: var(--white); }
.button-outline:hover, .button-outline:focus-visible { border-color: var(--orange); transform: translateY(-3px); }
.hero-proof {
  margin: 50px 0 0;
  padding: 0;
  display: flex;
  width: min(100%, 520px);
  border-top: 1px solid rgba(255,255,255,.18);
}
.hero-proof div { flex: 1; padding: 18px 0 0; }
.hero-proof dt { color: var(--orange); font: 700 9px var(--body); }
.hero-proof dd { margin: 5px 0 0; color: #dedfdb; font: 600 11px var(--body); text-transform: uppercase; letter-spacing: .05em; }
.product-stage {
  position: relative;
  margin: 0;
  min-height: 490px;
  overflow: hidden;
  border: 1px solid rgba(255,255,255,.24);
  background: #090a0b;
}
.product-stage::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, transparent 55%, rgba(8,9,9,.78));
}
.product-stage img { width: 100%; height: 100%; min-height: 490px; display: block; object-fit: cover; transform: translate3d(0, var(--hero-shift, 0), 0) scale(1.035); transition: transform 1.1s cubic-bezier(.2,.75,.25,1), filter .6s ease; will-change: transform; }
.product-stage:hover img { transform: translate3d(0, var(--hero-shift, 0), 0) scale(1.065); filter: saturate(1.06); }
.product-stage figcaption { position: absolute; z-index: 2; inset: auto 20px 17px; display: flex; align-items: center; justify-content: space-between; gap: 20px; color: #c4c7c8; font: 600 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.product-stage figcaption b { display: flex; align-items: center; gap: 9px; font: inherit; color: var(--white); }
.product-stage figcaption i { width: 7px; height: 7px; border-radius: 50%; background: var(--orange); box-shadow: 0 0 0 4px rgba(255,90,0,.16); }
.hero-scroll { position: absolute; right: var(--pad); bottom: 26px; z-index: 2; display: flex; gap: 12px; align-items: center; color: #aeb1b3; font: 600 9px var(--body); text-transform: uppercase; text-decoration: none; letter-spacing: .12em; }
.hero-scroll span { color: var(--orange); font-size: 17px; }

.context {
  display: grid;
  grid-template-columns: .55fr 1.5fr .75fr;
  gap: clamp(30px, 6vw, 100px);
  padding: clamp(90px, 11vw, 170px) var(--pad);
  background: var(--white);
}
.section-index, .section-label { color: var(--orange); }
.context .overline, .about .overline { margin-bottom: 14px; font: 600 12px var(--body); text-transform: uppercase; letter-spacing: .08em; }
.context h2,
.product h2,
.kit h2,
.sos h2,
.use h2,
.corporate h2,
.about h2,
.guide h2,
.faq h2,
.contact h2 {
  margin: 0;
  font: 700 clamp(47px, 6.3vw, 94px)/.9 var(--display);
  letter-spacing: -.035em;
  text-transform: uppercase;
}
.context-copy > p:last-child { max-width: 720px; margin: 34px 0 0; color: #505659; font-size: 17px; }
.context-note { align-self: end; padding: 23px 0 0 22px; border-left: 3px solid var(--orange); }
.context-note span { font: 700 9px var(--body); text-transform: uppercase; letter-spacing: .12em; color: var(--orange); }
.context-note p { margin: 9px 0 0; font: 600 16px/1.5 var(--body); }

.product { padding: clamp(85px, 10vw, 150px) var(--pad); background: var(--paper); }
.product-heading { display: grid; grid-template-columns: 1.4fr .6fr; gap: 8vw; align-items: end; }
.product-heading h2 { max-width: 780px; margin-top: 16px; }
.product-heading h2 span { color: var(--orange); }
.product-heading > p { margin: 0 0 4px; color: #565c5f; }
.benefit-grid { margin-top: clamp(54px, 7vw, 100px); display: grid; grid-template-columns: repeat(4, 1fr); }
.benefit-grid article { position: relative; min-height: 370px; padding: 28px; display: flex; flex-direction: column; border: 1px solid var(--line); border-right: 0; background: #eeede7; transition: transform .38s cubic-bezier(.2,.75,.25,1), box-shadow .38s ease, background .3s ease; }
.benefit-grid article::after { content: ""; position: absolute; inset: auto 28px 0; height: 3px; background: var(--orange); transform: scaleX(0); transform-origin: left; transition: transform .35s ease; }
.benefit-grid article:hover { z-index: 2; transform: translateY(-10px); box-shadow: 0 22px 45px rgba(17,19,21,.12); }
.benefit-grid article:hover::after { transform: scaleX(1); }
.benefit-grid article:nth-child(2) { background: var(--white); }
.benefit-grid article:nth-child(3) { background: #e5e4de; }
.benefit-grid article:last-child { border-right: 1px solid var(--line); }
.benefit-grid article > b { font: 700 10px var(--body); color: var(--orange); }
.benefit-mark { margin: auto 0 30px; color: var(--orange); font: 700 42px/1 var(--display); }
.benefit-grid h3 { margin-bottom: 16px; font: 700 31px/1 var(--display); text-transform: uppercase; }
.benefit-grid p { margin-bottom: 0; color: #616669; font-size: 13px; }
.benefit-grid .benefit-featured { background: var(--orange); color: var(--white); border-color: var(--orange); }
.benefit-featured > b, .benefit-featured .benefit-mark, .benefit-featured p { color: var(--white); }
.product-meta { display: flex; justify-content: space-between; gap: 30px; align-items: center; padding-top: 26px; }
.product-meta p { margin: 0; font-size: 12px; color: #666b6e; }
.product-meta p strong { margin-right: 15px; color: var(--ink); }
.product-meta a { flex: none; color: var(--orange-dark); font-size: 11px; font-weight: 700; text-transform: uppercase; text-decoration: none; letter-spacing: .05em; }
.product-meta a span { margin-left: 12px; font-size: 16px; }

.kit { padding: clamp(88px, 10vw, 150px) var(--pad); background: var(--ink); color: var(--white); }
.kit-intro { display: grid; grid-template-columns: 1.2fr .8fr; gap: 8vw; align-items: end; }
.kit-intro .section-label { grid-column: 1 / -1; }
.section-label.light { color: var(--orange); }
.kit-intro > p:last-child { margin: 0; max-width: 520px; color: #aeb1b3; }
.kit-photo { position: relative; margin: 70px 0 0; overflow: hidden; background: #0b0c0d; }
.kit-photo img { width: 100%; max-height: 680px; display: block; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.75,.25,1); }
.kit-photo:hover img { transform: scale(1.025); }
.kit-photo::after { content: ""; position: absolute; inset: 0; pointer-events: none; box-shadow: inset 0 0 0 1px rgba(255,255,255,.12); }
.kit-photo figcaption { position: absolute; inset: auto 0 0; padding: 16px 20px; display: flex; justify-content: space-between; gap: 20px; background: rgba(8,9,9,.82); color: #aeb2b3; font: 600 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.kit-photo figcaption b { color: var(--orange); }
.kit-list { margin-top: 80px; border-top: 1px solid #42474a; }
.kit-item { border-bottom: 1px solid #42474a; transition: background .3s ease, padding .3s ease; }
.kit-item:hover { background: #191c1f; }
.kit-item > button { width: 100%; border: 0; padding: 26px 0; display: grid; grid-template-columns: 90px 1fr 50px; align-items: center; text-align: left; background: transparent; cursor: pointer; }
.kit-no { color: var(--orange); font: 700 10px var(--body); }
.kit-name { font: 700 clamp(28px, 3vw, 45px)/1 var(--display); text-transform: uppercase; }
.kit-name small { display: block; margin-bottom: 9px; color: #8f9496; font: 600 9px var(--body); letter-spacing: .11em; }
.kit-toggle { justify-self: end; width: 34px; height: 34px; display: grid; place-items: center; border: 1px solid #575c5f; color: var(--orange); font-size: 20px; transition: transform .3s ease, border-color .3s ease, background .3s ease; }
.kit-item:hover .kit-toggle { transform: rotate(90deg); border-color: var(--orange); }
.kit-item.is-open .kit-toggle { transform: rotate(0); background: var(--orange); color: var(--white); border-color: var(--orange); }
.kit-panel { padding: 0 50px 28px 90px; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; color: #bfc2c3; }
.kit-panel[hidden] { display: none; }
.kit-panel p, .kit-panel span { margin: 0; font-size: 13px; }
.kit-panel span { color: #858b8d; }
.kit-item.is-open { background: #191c1f; }
.sos { padding: clamp(90px, 11vw, 170px) var(--pad); background: var(--white); }
.sos-heading { display: grid; grid-template-columns: 1.2fr .8fr; gap: 3vw 8vw; align-items: end; }
.sos-heading .section-label { grid-column: 1 / -1; }
.sos-heading > p:last-child { margin: 0; color: #5c6265; }
.whistle-photo { position: relative; margin: 75px 0 0; overflow: hidden; background: var(--ink); }
.whistle-photo img { width: 100%; max-height: 650px; display: block; object-fit: cover; transition: transform 1.2s cubic-bezier(.2,.75,.25,1), filter .6s ease; }
.whistle-photo:hover img { transform: scale(1.025); filter: saturate(1.08); }
.whistle-photo figcaption { position: absolute; left: 22px; bottom: 18px; padding: 9px 12px; background: rgba(10,11,12,.85); color: var(--white); font: 600 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.sos-code { position: relative; margin-top: 90px; padding: 60px 0 75px; display: grid; grid-template-columns: repeat(3, 1fr); gap: 50px; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.sos-group { position: relative; display: flex; align-items: center; justify-content: center; gap: clamp(9px, 1.4vw, 22px); min-height: 70px; }
.sos-group span { display: block; height: 18px; background: var(--orange); }
.sos-group .short { width: 18px; border-radius: 50%; }
.sos-group .long { flex: 1; max-width: 74px; }
.sos-group small { position: absolute; left: 0; right: 0; bottom: -22px; text-align: center; color: #7b8082; font: 600 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.sos-code > b { position: absolute; left: 50%; bottom: -20px; transform: translateX(-50%); padding: 7px 24px; background: var(--ink); color: var(--white); font: 700 13px var(--body); letter-spacing: .2em; }
.safety-note { margin: 65px auto 0; max-width: 850px; display: grid; grid-template-columns: 190px 1fr; gap: 30px; padding: 26px 30px; border-left: 4px solid var(--orange); background: var(--paper); }
.safety-note strong { color: var(--orange-dark); font: 700 10px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.safety-note p { margin: 0; font-size: 13px; }

.use { padding: clamp(90px, 11vw, 170px) var(--pad); background: #e9e8e2; display: grid; grid-template-columns: minmax(0, 1.12fr) minmax(320px, .88fr); grid-template-areas: "heading heading" "photo steps"; gap: clamp(44px, 6vw, 88px) clamp(42px, 7vw, 110px); }
.use-heading { grid-area: heading; display: grid; grid-template-columns: .36fr 1.64fr; gap: 6vw; align-items: start; }
.use-heading .section-label { margin-top: 9px; }
.use-heading h2 { max-width: 900px; margin: 0; }
.use-heading h2 span { color: var(--orange); }
.use-photo { grid-area: photo; margin: 0; overflow: hidden; align-self: center; background: #d6d5cf; }
.use-photo img { width: 100%; height: auto; aspect-ratio: 16 / 9; display: block; object-fit: cover; object-position: 55% center; transition: transform 1s cubic-bezier(.2,.75,.25,1); }
.use-photo:hover img { transform: scale(1.035); }
.use ol { grid-area: steps; margin: 0; padding: 0; list-style: none; align-self: center; border-top: 1px solid #c7c7c1; }
.use li { padding: 26px 0; display: grid; grid-template-columns: 58px 1fr; gap: 18px; border-bottom: 1px solid #c7c7c1; transition: padding .3s ease, background .3s ease; }
.use li:hover { padding-left: 15px; background: rgba(255,255,255,.38); }
.use li > span { color: var(--orange); font: 700 10px var(--body); }
.use h3 { margin-bottom: 7px; font: 700 28px/1 var(--display); text-transform: uppercase; }
.use li p { margin: 0; max-width: 580px; color: #64696b; font-size: 13px; }

.corporate { position: relative; overflow: hidden; padding: clamp(92px, 11vw, 170px) var(--pad); background: var(--carbon); color: var(--white); display: grid; grid-template-columns: 1.25fr .75fr; gap: 10vw; align-items: end; }
.corporate::before { content: "07"; position: absolute; top: -9vw; right: -2vw; color: rgba(255,255,255,.025); font: 900 36vw/1 var(--display); }
.corporate::after { content: ""; position: absolute; z-index: 0; inset: 0; background: linear-gradient(90deg, rgba(17,19,21,.98) 0%, rgba(17,19,21,.82) 45%, rgba(17,19,21,.4) 100%), linear-gradient(0deg, rgba(17,19,21,.72), transparent 65%); }
.corporate-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center; opacity: .82; transform: scale(1.025); transition: transform 1.4s cubic-bezier(.2,.75,.25,1), opacity .8s ease; }
.corporate:hover .corporate-photo { transform: scale(1.055); opacity: .9; }
.corporate-copy, .corporate ul { position: relative; z-index: 1; }
.corporate h2 { max-width: 840px; margin-top: 18px; }
.corporate-copy > p:not(.section-label) { max-width: 640px; margin: 30px 0; color: #b6babb; }
.corporate ul { margin: 0; padding: 0; list-style: none; border-top: 1px solid #505456; }
.corporate li { padding: 20px 0; display: flex; align-items: center; gap: 25px; border-bottom: 1px solid #505456; font: 600 13px var(--body); transition: padding .3s ease, color .3s ease, border-color .3s ease; }
.corporate li:hover { padding-left: 10px; color: var(--orange); border-color: var(--orange); }
.corporate li span { color: var(--orange); font-size: 9px; }

.about { padding: clamp(90px, 11vw, 170px) var(--pad); display: grid; grid-template-columns: .35fr 1.65fr; gap: 6vw; background: var(--white); }
.about h2 { max-width: 1050px; }
.about-copy { margin-top: 50px; display: grid; grid-template-columns: repeat(2, 1fr); gap: 5vw; max-width: 930px; }
.about-copy p { color: #5c6265; }

.guide { padding: clamp(90px, 10vw, 150px) var(--pad); background: var(--paper); }
.guide-heading { display: grid; grid-template-columns: .5fr 1.5fr; gap: 6vw; align-items: start; }
.guide-cards { margin-top: 70px; display: grid; grid-template-columns: repeat(3, 1fr); }
.guide-cards article { min-height: 370px; padding: 30px; display: flex; flex-direction: column; background: var(--white); border: 1px solid var(--line); border-right: 0; transition: transform .38s cubic-bezier(.2,.75,.25,1), box-shadow .38s ease; }
.guide-cards article:hover { z-index: 2; transform: translateY(-9px); box-shadow: 0 22px 48px rgba(17,19,21,.12); }
.guide-cards article:nth-child(2) { background: var(--ink); color: var(--white); }
.guide-cards article:last-child { border-right: 1px solid var(--line); }
.guide-cards article > span { color: var(--orange); font: 700 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.guide-cards h3 { margin: auto 0 17px; max-width: 300px; font: 700 31px/1 var(--display); text-transform: uppercase; }
.guide-cards p { color: #6a6f72; font-size: 13px; }
.guide-cards article:nth-child(2) p { color: #aeb2b3; }
.guide-cards a { margin-top: 20px; font: 700 10px var(--body); text-transform: uppercase; text-decoration: none; letter-spacing: .04em; }
.guide-cards a b { color: var(--orange); margin-left: 8px; }

.faq { padding: clamp(90px, 11vw, 170px) var(--pad); display: grid; grid-template-columns: .7fr 1.3fr; gap: 9vw; background: var(--white); }
.faq h2 { margin-top: 17px; font-size: clamp(44px, 5vw, 76px); }
.faq-list { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary { position: relative; padding: 28px 50px 28px 0; list-style: none; cursor: pointer; font: 600 17px/1.4 var(--body); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary span { position: absolute; right: 3px; top: 25px; color: var(--orange); font: 400 26px/1 var(--body); transition: transform .2s ease; }
.faq details[open] summary span { transform: rotate(45deg); }
.faq details p { max-width: 720px; margin: -4px 45px 28px 0; color: #656a6d; font-size: 14px; }
.faq details[open] p { animation: detail-in .32s cubic-bezier(.2,.75,.25,1) both; }

.contact { padding: clamp(95px, 11vw, 170px) var(--pad); display: grid; grid-template-columns: .85fr 1.15fr; gap: 9vw; background: var(--ink); color: var(--white); }
.contact h2 { margin-top: 18px; }
.contact-copy > p:not(.section-label) { max-width: 550px; margin: 28px 0; color: #aeb2b3; }
.contact-points { max-width: 540px; margin-top: 40px; display: flex; flex-wrap: wrap; gap: 8px; }
.contact-points span { padding: 9px 12px; border: 1px solid #404548; color: #aeb2b3; font: 600 9px var(--body); text-transform: uppercase; letter-spacing: .08em; transition: border-color .25s ease, color .25s ease, transform .25s ease; }
.contact-points span:hover { border-color: var(--orange); color: var(--white); transform: translateY(-2px); }
.contact-whatsapp { max-width: 540px; margin-top: 38px; padding: 17px 0; display: flex; align-items: center; justify-content: space-between; gap: 20px; border-top: 1px solid #404548; border-bottom: 1px solid #404548; color: var(--white); text-decoration: none; }
.contact-whatsapp span { color: var(--orange); font: 700 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.contact-whatsapp strong { font: 700 15px var(--body); }
.contact-whatsapp b { margin-left: 10px; color: var(--orange); font-size: 18px; }
.contact-whatsapp:hover strong { color: var(--orange); }
.contact-form { align-self: end; }
.contact-form label { display: block; margin-bottom: 22px; color: #aeb2b3; font: 600 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.form-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.contact-form input, .contact-form select, .contact-form textarea { width: 100%; border: 0; border-bottom: 1px solid #505558; border-radius: 0; padding: 12px 0; background: transparent; color: var(--white); outline: 0; font: 400 15px var(--body); text-transform: none; letter-spacing: 0; }
.contact-form select { color-scheme: dark; }
.contact-form textarea { resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus { border-color: var(--orange); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: #73787a; }
.form-note { margin: 15px 0 0; color: #858a8c; font-size: 11px; }
.form-status { min-height: 22px; margin: 18px 0 0; color: #ffad80; font-size: 12px; }

footer { padding: 70px var(--pad) 24px; display: grid; grid-template-columns: 1.5fr .7fr .7fr; gap: 6vw; background: #080909; color: var(--white); }
.footer-brand p { margin: 26px 0 0; color: #7e8385; font: 600 10px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.footer-nav { display: flex; flex-direction: column; gap: 10px; }
.footer-nav span { margin-bottom: 8px; color: var(--orange); font: 700 9px var(--body); text-transform: uppercase; letter-spacing: .1em; }
.footer-nav a { color: #a9adaf; text-decoration: none; font-size: 12px; }
.footer-nav a:hover { color: var(--white); }
.footer-bottom { grid-column: 1 / -1; margin-top: 50px; padding-top: 20px; display: flex; justify-content: space-between; border-top: 1px solid #292c2e; color: #676c6e; font-size: 9px; text-transform: uppercase; letter-spacing: .08em; }
.floating-contact { position: fixed; z-index: 12; right: 18px; bottom: 18px; width: 58px; height: 58px; display: none; place-items: center; background: var(--orange); color: var(--white); text-decoration: none; box-shadow: 0 12px 32px rgba(0,0,0,.25); }
.floating-contact span { font-size: 21px; }
.floating-contact b { display: none; }

.js .reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .75s cubic-bezier(.2,.75,.25,1) var(--reveal-delay, 0ms), transform .75s cubic-bezier(.2,.75,.25,1) var(--reveal-delay, 0ms), background-color .3s ease, border-color .3s ease, box-shadow .38s ease, color .3s ease, padding .3s ease;
}
.js .reveal.is-visible { opacity: 1; transform: translateY(0); }
.js .benefit-grid article.reveal.is-visible:hover { transform: translateY(-10px); }
.js .guide-cards article.reveal.is-visible:hover { transform: translateY(-9px); }
.js .button.reveal.is-visible:hover { transform: translateY(-3px); }
.js .reveal-image {
  overflow: hidden;
}
.js .reveal-image img { opacity: .82; transform: scale(1.045); transition: opacity .7s ease, transform 1.2s cubic-bezier(.2,.75,.25,1); }
.js .reveal-image.is-visible img { opacity: 1; transform: scale(1); }
.js .kit-photo.reveal-image.is-visible:hover img,
.js .whistle-photo.reveal-image.is-visible:hover img { transform: scale(1.025); }
.js .use-photo.reveal-image.is-visible:hover img { transform: scale(1.035); }

@keyframes hero-enter {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes hero-stage-enter {
  from { opacity: 0; transform: translateX(28px) scale(.98); }
  to { opacity: 1; transform: translateX(0) scale(1); }
}
@keyframes grid-drift {
  from { background-position: 0 0, 0 0; }
  to { background-position: 36px 18px, 18px 36px; }
}
@keyframes detail-in {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes signal-pop {
  from { opacity: .2; transform: scaleX(.1); }
  to { opacity: 1; transform: scaleX(1); }
}

.hero-copy > * { animation: hero-enter .72s cubic-bezier(.2,.75,.25,1) both; }
.hero-copy > :nth-child(1) { animation-delay: 80ms; }
.hero-copy > :nth-child(2) { animation-delay: 160ms; }
.hero-copy > :nth-child(3) { animation-delay: 240ms; }
.hero-copy > :nth-child(4) { animation-delay: 320ms; }
.hero-copy > :nth-child(5) { animation-delay: 400ms; }
.product-stage { animation: hero-stage-enter .9s cubic-bezier(.2,.75,.25,1) .2s both; }
.sos-group.is-visible span { animation: signal-pop .58s cubic-bezier(.2,.75,.25,1) both; transform-origin: left; }
.sos-group:nth-child(1).is-visible span { animation-delay: .18s; }
.sos-group:nth-child(2).is-visible span { animation-delay: .34s; }
.sos-group:nth-child(3).is-visible span { animation-delay: .5s; }

.legal-page { background: var(--paper); }
.legal-header { height: 88px; padding: 0 var(--pad); display: flex; align-items: center; justify-content: space-between; background: var(--ink); color: var(--white); }
.legal-header > a:last-child { color: #b7babc; font-size: 11px; text-transform: uppercase; text-decoration: none; letter-spacing: .08em; }
.legal-hero { padding: 100px var(--pad) 80px; background: var(--ink); color: var(--white); }
.legal-hero h1 { max-width: 900px; font-size: clamp(64px, 8vw, 118px); }
.legal-hero > p:last-child { max-width: 700px; color: #aeb2b3; }
.legal-content { padding: 50px var(--pad) 120px; }
.legal-content section { padding: 34px 0; display: grid; grid-template-columns: 90px 1fr; gap: 20px; border-bottom: 1px solid var(--line); }
.legal-content section > span { color: var(--orange); font: 700 10px var(--body); }
.legal-content h2 { margin: 0 0 10px; font: 700 32px/1 var(--display); text-transform: uppercase; }
.legal-content p { max-width: 850px; margin: 0; color: #5f6467; }
.legal-footer { padding: 25px var(--pad); display: flex; justify-content: space-between; background: #080909; color: #777c7e; font: 600 9px var(--body); text-transform: uppercase; letter-spacing: .09em; }

@media (max-width: 1080px) {
  .header-cta { display: none; }
  .hero { grid-template-columns: 1fr .7fr; gap: 45px; }
  .product-stage, .product-stage img { min-height: 420px; }
  .benefit-grid { grid-template-columns: repeat(2, 1fr); }
  .benefit-grid article:nth-child(2) { border-right: 1px solid var(--line); }
  .benefit-grid article:nth-child(n+3) { border-top: 0; }
  .guide-cards h3 { font-size: 27px; }
}

@media (max-width: 800px) {
  .site-header { height: 74px; }
  .menu-toggle { margin-left: auto; display: inline-flex; align-items: center; gap: 11px; padding: 10px 0; border: 0; background: transparent; color: var(--white); font: 700 10px var(--body); text-transform: uppercase; letter-spacing: .08em; }
  .menu-toggle i, .menu-toggle i::before { display: block; width: 22px; height: 1px; background: currentColor; transition: transform .2s ease; }
  .menu-toggle i { position: relative; }
  .menu-toggle i::before { content: ""; position: absolute; top: 6px; }
  .menu-open .menu-toggle i { transform: rotate(45deg); }
  .menu-open .menu-toggle i::before { top: 0; transform: rotate(90deg); }
  .site-header.menu-open { position: fixed; inset: 0 0 auto; height: 74px; background: var(--paper); color: var(--ink); border-bottom-color: var(--line); backdrop-filter: none; }
  .site-header.menu-open .menu-toggle { color: var(--ink); }
  .site-header.menu-open .brand strong { color: var(--ink); }
  .site-header.menu-open .brand span { color: var(--orange-dark); }
  .site-header nav { position: fixed; inset: 74px 0 0; padding: 34px var(--pad); display: none; flex-direction: column; align-items: flex-start; gap: 0; overflow-y: auto; overscroll-behavior: contain; background: var(--paper); color: var(--ink); border-top: 1px solid var(--line); }
  .site-header.menu-open nav { display: flex; }
  .site-header nav a { width: 100%; padding: 20px 6px; border-bottom: 1px solid var(--line); color: var(--ink); font: 700 34px/1 var(--display); text-transform: uppercase; transition: color .2s ease, padding .25s ease; }
  .site-header nav a::after { inset: 18px auto 18px 0; width: 3px; height: auto; transform: scaleY(0); transform-origin: center; }
  .site-header nav a:hover,
  .site-header nav a:focus-visible,
  .site-header nav a.is-current { padding-left: 19px; color: var(--ink); }
  .site-header nav a:hover::after,
  .site-header nav a:focus-visible::after,
  .site-header nav a.is-current::after { transform: scaleY(1); }
  .hero { min-height: 860px; height: auto; grid-template-columns: 1fr; padding-top: 128px; padding-bottom: 80px; }
  .hero h1 { font-size: clamp(60px, 16vw, 90px); }
  .product-stage { display: block; min-height: 460px; order: 2; }
  .product-stage img { min-height: 460px; }
  .hero-scroll { display: none; }
  .context { grid-template-columns: 1fr; gap: 30px; }
  .context-note { max-width: 520px; }
  .product-heading, .kit-intro, .sos-heading, .use, .corporate, .about, .guide-heading, .faq, .contact { grid-template-columns: 1fr; }
  .product-heading > p, .kit-intro > p:last-child, .sos-heading > p:last-child { margin-top: 26px; }
  .kit-intro .section-label, .sos-heading .section-label { grid-column: auto; }
  .use { grid-template-areas: "heading" "photo" "steps"; gap: 42px; }
  .use-heading { display: block; }
  .use-heading h2 { margin-top: 18px; }
  .use-photo img { aspect-ratio: 16 / 9; object-position: 55% center; }
  .corporate ul { margin-top: 15px; }
  .about-copy { grid-template-columns: 1fr; gap: 0; }
  .guide-heading { gap: 22px; }
  .guide-cards { grid-template-columns: 1fr; }
  .guide-cards article { min-height: 290px; border-right: 1px solid var(--line); border-bottom: 0; }
  .guide-cards article:last-child { border-bottom: 1px solid var(--line); }
  footer { grid-template-columns: 1.4fr .6fr; }
  .footer-nav:nth-of-type(3) { grid-column: 2; }
  .floating-contact { display: grid; }
}

@media (max-width: 560px) {
  :root { --pad: 20px; }
  body { font-size: 15px; }
  .site-header.is-scrolled { height: 66px; }
  .site-header.is-scrolled nav { top: 66px; }
  .brand strong { font-size: 24px; }
  .hero { min-height: 760px; padding-top: 112px; background: radial-gradient(circle at 85% 20%, rgba(255,90,0,.22), transparent 31%), var(--ink); }
  .product-stage { min-height: 380px; }
  .product-stage img { min-height: 380px; }
  .product-stage figcaption { inset: auto 14px 13px; }
  .product-stage figcaption b { display: none; }
  .hero h1 { margin-top: 18px; font-size: clamp(58px, 19vw, 80px); }
  .hero-lead { font-size: 14px; }
  .hero-actions { flex-direction: column; }
  .button { width: 100%; }
  .hero-proof { margin-top: 42px; }
  .hero-proof dd { font-size: 9px; }
  .context h2, .product h2, .kit h2, .sos h2, .use h2, .corporate h2, .about h2, .guide h2, .contact h2 { font-size: clamp(43px, 14vw, 64px); }
  .context-copy > p:last-child { font-size: 15px; }
  .benefit-grid { grid-template-columns: 1fr; }
  .benefit-grid article { min-height: 300px; border-right: 1px solid var(--line); border-bottom: 0; }
  .benefit-grid article:last-child { border-bottom: 1px solid var(--line); }
  .product-meta { align-items: flex-start; flex-direction: column; }
  .kit-list { margin-top: 48px; }
  .kit-photo { margin-top: 44px; }
  .kit-photo img { min-height: 350px; object-position: 40% center; }
  .kit-item > button { grid-template-columns: 42px 1fr 34px; gap: 8px; padding: 21px 0; }
  .kit-name { font-size: 27px; }
  .kit-panel { padding: 0 0 24px 50px; grid-template-columns: 1fr; gap: 10px; }
  .sos-code { gap: 14px; padding: 42px 0 67px; }
  .whistle-photo { margin-top: 44px; }
  .whistle-photo img { min-height: 330px; object-position: 62% center; }
  .sos-group { gap: 7px; }
  .sos-group span { height: 11px; }
  .sos-group .short { width: 11px; }
  .sos-group .long { max-width: 35px; }
  .safety-note { grid-template-columns: 1fr; gap: 10px; padding: 22px; }
  .use li { grid-template-columns: 45px 1fr; }
  .about { gap: 35px; }
  .guide-cards { margin-top: 44px; }
  .faq { gap: 40px; }
  .faq h2 { font-size: 49px; }
  .faq summary { font-size: 15px; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
  footer { grid-template-columns: 1fr 1fr; }
  .footer-brand { grid-column: 1 / -1; margin-bottom: 20px; }
  .footer-bottom { flex-direction: column; gap: 7px; }
  .legal-header { height: 74px; }
  .legal-header > a:last-child { font-size: 9px; }
  .legal-hero { padding-top: 72px; }
  .legal-content section { grid-template-columns: 42px 1fr; }
  .legal-footer { gap: 20px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition: none !important; animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
}