:root {
  --orange: #f46600;
  --orange-dark: #d95100;
  --ink: #0b0d0e;
  --ink-2: #151819;
  --paper: #ffffff;
  --muted: #6d7275;
  --line: #e1e3e4;
  --gold: #e8c57c;
  --container: 1450px;
  --header-h: 88px;
  --radius: 12px;
  --shadow: 0 18px 55px rgba(0, 0, 0, .14);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 14px); }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: "Jost", Arial, sans-serif; -webkit-font-smoothing: antialiased; }
body.drawer-open { overflow: hidden; }
.karbontech-alt-content { padding-top: var(--header-h); }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button, input, textarea, select { font: inherit; }
button { color: inherit; }
svg { display: block; }
.svg-sprite { position: absolute; width: 0; height: 0; overflow: hidden; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
.section-shell, .header-shell, .hero-shell { width: min(calc(100% - 64px), var(--container)); margin-inline: auto; }

/* Header */
.site-header { position: fixed; inset: 0 0 auto; z-index: 200; color: #fff; background: transparent; transition: color .28s ease, background .28s ease, box-shadow .28s ease; }
.site-header.is-scrolled { color: var(--ink); background: rgba(255, 255, 255, .97); box-shadow: 0 10px 36px rgba(0, 0, 0, .10); }
.header-shell { height: var(--header-h); display: flex; align-items: center; gap: 36px; }
.brand { min-width: 310px; display: inline-flex; align-items: center; }
.brand-logo-switch { position: relative; width: 260px; height: 58px; display: block; flex: 0 0 260px; }
.brand-logo { width: 260px; height: 58px; object-fit: contain; object-position: left center; }
.brand-logo-switch .brand-logo { position: absolute; inset: 0; transition: opacity .24s ease; }
.brand-logo--light { opacity: 1; }
.brand-logo--dark { opacity: 0; }
.site-header.is-scrolled .brand-logo--light { opacity: 0; }
.site-header.is-scrolled .brand-logo--dark { opacity: 1; }
.drawer-brand-logo { width: 220px; height: 52px; }
.footer-brand-logo { width: 260px; height: 58px; }

.desktop-nav { margin-left: auto; display: flex; align-items: center; gap: clamp(22px, 2.6vw, 46px); text-transform: uppercase; font-size: 13px; font-weight: 500; }
.desktop-nav > a, .desktop-dropdown > button { position: relative; min-height: var(--header-h); padding: 0; display: inline-flex; align-items: center; border: 0; color: inherit; background: transparent; text-transform: uppercase; white-space: nowrap; cursor: pointer; }
.desktop-nav > a:not(.nav-contact)::after, .desktop-dropdown > button::after { content: ""; position: absolute; left: 0; right: 100%; bottom: 21px; height: 2px; background: var(--orange); transition: right .22s ease; }
.desktop-nav > a:hover::after, .desktop-nav > a.is-active::after, .desktop-dropdown:hover > button::after, .desktop-dropdown.is-open > button::after { right: 0; }
.desktop-nav > a.is-active { color: var(--orange); }
.desktop-dropdown { position: relative; }
.desktop-dropdown > button { gap: 5px; }
.desktop-dropdown > button svg { width: 16px; height: 16px; fill: none; stroke: currentColor; stroke-width: 1.8; transition: transform .2s ease; }
.desktop-dropdown:hover > button svg, .desktop-dropdown.is-open > button svg { transform: rotate(180deg); }
.desktop-dropdown-menu { position: absolute; top: calc(100% - 12px); left: -22px; width: 270px; padding: 10px; border: 1px solid rgba(0, 0, 0, .08); border-radius: 12px; color: var(--ink); background: #fff; box-shadow: 0 22px 55px rgba(0, 0, 0, .17); opacity: 0; visibility: hidden; transform: translateY(10px); transition: .2s ease; }
.desktop-dropdown:hover .desktop-dropdown-menu, .desktop-dropdown:focus-within .desktop-dropdown-menu, .desktop-dropdown.is-open .desktop-dropdown-menu { opacity: 1; visibility: visible; transform: none; }
.desktop-dropdown-menu a { display: block; padding: 12px 13px; border-radius: 8px; text-transform: none; font-size: 13px; }
.desktop-dropdown-menu a:hover { color: var(--orange); background: #f5f6f6; }
.nav-contact { min-height: 42px !important; padding: 0 27px !important; border-radius: 999px; color: #fff !important; background: linear-gradient(90deg, var(--orange), #ff7a14) !important; box-shadow: 0 8px 22px rgba(244, 102, 0, .28); }
.nav-contact::after { display: none !important; }
.menu-toggle { display: none; margin-left: auto; width: 45px; height: 45px; place-items: center; border: 1px solid rgba(255, 255, 255, .28); border-radius: 50%; color: #fff; background: rgba(255, 255, 255, .05); cursor: pointer; transition: .2s ease; }
.site-header.is-scrolled .menu-toggle { color: var(--ink); border-color: rgba(0, 0, 0, .12); background: #f5f5f5; }
.menu-toggle svg { width: 25px; height: 25px; fill: none; stroke: currentColor; stroke-width: 2; }

/* Mobile drawer */
.drawer-layer { position: fixed; inset: 0; z-index: 500; pointer-events: none; visibility: hidden; }
.drawer-backdrop { position: absolute; inset: 0; border: 0; background: rgba(5, 7, 8, .54); backdrop-filter: blur(8px); opacity: 0; transition: opacity .3s ease; }
.mobile-drawer { position: absolute; inset: 0 auto 0 0; width: min(82vw, 430px); padding: 24px 24px 30px; display: flex; flex-direction: column; color: var(--ink); background: #fff; box-shadow: 22px 0 55px rgba(0, 0, 0, .25); overflow-y: auto; transform: translateX(-102%); transition: transform .34s cubic-bezier(.2, .8, .2, 1); }
.drawer-layer.is-open { pointer-events: auto; visibility: visible; }
.drawer-layer.is-open .drawer-backdrop { opacity: 1; }
.drawer-layer.is-open .mobile-drawer { transform: translateX(0); }
.drawer-head { display: flex; align-items: center; gap: 16px; padding-bottom: 20px; border-bottom: 1px solid var(--line); }
.drawer-brand { min-width: 0; flex: 1; }
.drawer-close { margin-left: auto; width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; background: #f6f7f7; cursor: pointer; }
.drawer-close svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; }
.drawer-nav { margin-top: 14px; }
.drawer-nav > a, .drawer-accordion-toggle { width: 100%; min-height: 54px; padding: 0 2px; display: flex; align-items: center; justify-content: space-between; border: 0; border-bottom: 1px solid #eceeee; background: transparent; font-size: 16px; font-weight: 600; text-align: left; cursor: pointer; }
.drawer-nav > a svg, .drawer-accordion-toggle svg { width: 19px; height: 19px; fill: none; stroke: var(--orange); stroke-width: 2; }
.drawer-accordion-toggle svg { transition: transform .24s ease; }
.drawer-accordion.is-open .drawer-accordion-toggle svg { transform: rotate(180deg); }
.drawer-submenu { max-height: 0; padding-left: 15px; overflow: hidden; background: #f7f8f8; transition: max-height .3s ease; }
.drawer-submenu a { display: block; padding: 12px 14px; border-bottom: 1px solid #e6e8e8; color: #52585a; font-size: 14px; }
.drawer-submenu a:hover { color: var(--orange); }
.drawer-quick { margin-top: 24px; }
.drawer-quick > p { margin: 0 0 10px; color: #8b9092; text-transform: uppercase; letter-spacing: 1.2px; font-size: 11px; font-weight: 700; }
.drawer-quick-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.drawer-quick-grid a { min-height: 84px; padding: 14px; display: flex; flex-direction: column; align-items: flex-start; justify-content: space-between; border: 1px solid #e4e6e7; border-radius: 11px; background: #fff; box-shadow: 0 8px 20px rgba(0, 0, 0, .04); font-size: 12px; font-weight: 600; }
.drawer-quick-grid svg { width: 27px; height: 27px; fill: none; stroke: var(--orange); stroke-width: 1.7; }
.drawer-contact { margin-top: 24px; padding-top: 18px; display: grid; gap: 10px; border-top: 1px solid var(--line); color: #686e70; font-size: 12px; }
.drawer-contact > span { display: flex; align-items: center; gap: 8px; }
.drawer-contact > span svg { width: 17px; height: 17px; fill: none; stroke: var(--orange); stroke-width: 1.7; }
.drawer-socials { display: flex; gap: 8px; margin-top: 6px; }
.drawer-socials a { width: 36px; height: 36px; display: grid; place-items: center; border-radius: 50%; color: #fff; background: var(--ink); }
.drawer-socials svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; }
.drawer-socials i, .footer-socials i { font-size: 18px; }

/* Hero slider */
.hero { position: relative; min-height: 760px; height: min(820px, 72vw); max-height: 880px; color: #fff; overflow: hidden; background: #050606; }
.hero-slides, .hero-slide, .hero-shade { position: absolute; inset: 0; }
.hero-slide { background-position: center; background-size: cover; opacity: 0; transform: scale(1.035); transition: opacity .8s ease, transform 6s ease; }
.hero-slide.is-active { opacity: 1; transform: scale(1); }
.hero-shade { background: linear-gradient(90deg, rgba(0, 0, 0, .96) 0%, rgba(0, 0, 0, .88) 26%, rgba(0, 0, 0, .57) 51%, rgba(0, 0, 0, .18) 76%, rgba(0, 0, 0, .30) 100%), linear-gradient(180deg, rgba(0, 0, 0, .35), transparent 34%, rgba(0, 0, 0, .25)); }
.hero-shell { position: relative; z-index: 2; min-height: inherit; height: 100%; padding-top: calc(var(--header-h) + 34px); padding-bottom: 70px; display: grid; grid-template-columns: minmax(0, 1fr) 330px; gap: 50px; align-items: center; }
.hero-content { align-self: center; max-width: 960px; }
.eyebrow { margin: 0 0 20px; color: var(--orange); text-transform: uppercase; letter-spacing: 1.8px; font-size: clamp(12px, 1.1vw, 16px); font-weight: 700; }
.hero h1 { margin: 0; max-width: 920px; color: #fff; text-transform: uppercase; font-size: clamp(40px, 4.05vw, 65px); line-height: 1.05; letter-spacing: -.8px; font-weight: 700; }
.hero-lead { max-width: 840px; margin: 20px 0 0; color: rgba(255, 255, 255, .9); font-size: clamp(15px, 1.05vw, 18px); line-height: 1.5; }
.hero-points { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 22px; max-width: 920px; margin-top: 24px; }
.hero-point { display: flex; align-items: center; gap: 14px; min-width: 0; color: rgba(255, 255, 255, .92); font-size: 14px; line-height: 1.55; }
.hero-point svg { flex: 0 0 40px; width: 40px; height: 40px; fill: none; stroke: var(--orange); stroke-width: 1.6; }
.hero-actions { display: flex; gap: 24px; flex-wrap: wrap; margin-top: 25px; }
.button { min-height: 50px; display: inline-flex; align-items: center; justify-content: center; gap: 28px; padding: 0 32px; border-radius: 999px; text-transform: uppercase; font-size: 13px; font-weight: 700; transition: transform .2s ease, box-shadow .2s ease, background .2s ease; }
.button:hover { transform: translateY(-2px); }
.button svg, .outline-link svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; }
.button-primary { color: #fff; background: linear-gradient(90deg, var(--orange), #ff7b10); box-shadow: 0 14px 28px rgba(244, 102, 0, .22); }
.button-primary:hover { box-shadow: 0 17px 34px rgba(244, 102, 0, .35); }
.button-ghost { border: 1px solid rgba(255, 255, 255, .68); color: #fff; background: rgba(255, 255, 255, .015); }
.button-ghost:hover { background: rgba(255, 255, 255, .08); }
.button-dark { color: #fff; background: var(--ink); }

.certificate-card { justify-self: end; width: 310px; padding: 25px 24px 0; text-align: center; border: 2px solid var(--gold); border-radius: 17px; background: linear-gradient(145deg, rgba(8, 9, 10, .92), rgba(24, 24, 22, .89)); box-shadow: 0 26px 55px rgba(0, 0, 0, .45), inset 0 0 40px rgba(232, 197, 124, .04); overflow: hidden; }
.tse-logo { object-fit: contain; }
.tse-logo-gold { width: 150px; height: 88px; margin: 0 auto 10px; border-radius: 8px; }
.certificate-card h2 { margin: 0; text-transform: uppercase; font-size: 25px; line-height: 1.08; }
.certificate-code { margin: 17px 0 12px; padding: 8px 12px; border-radius: 4px; color: #17130b; background: linear-gradient(180deg, #f2d58e, #d8aa50); font-size: 21px; font-weight: 800; }
.certificate-card > p { margin: 0 0 20px; line-height: 1.55; font-size: 13px; }
.certificate-note { margin-inline: -24px; padding: 15px; display: flex; align-items: center; gap: 12px; text-align: left; border-top: 1px solid rgba(232, 197, 124, .45); background: rgba(0, 0, 0, .22); font-size: 11px; line-height: 1.45; }
.certificate-note svg { flex: 0 0 25px; width: 25px; height: 25px; fill: none; stroke: #fff; stroke-width: 1.5; }
.hero-controls { position: absolute; z-index: 3; left: 50%; bottom: 24px; display: flex; align-items: center; justify-content: space-between; transform: translateX(-50%); }
.hero-dots { display: flex; align-items: center; gap: 8px; }
.hero-dots button { width: 28px; height: 3px; padding: 0; border: 0; background: rgba(255, 255, 255, .35); cursor: pointer; transition: .2s ease; }
.hero-dots button.is-active { width: 48px; background: var(--orange); }
.hero-arrows { display: flex; gap: 8px; }
.hero-arrows button { width: 42px; height: 42px; display: grid; place-items: center; border: 1px solid rgba(255, 255, 255, .4); border-radius: 50%; color: #fff; background: rgba(0, 0, 0, .18); cursor: pointer; }
.hero-arrows button:hover { background: var(--orange); border-color: var(--orange); }
.hero-arrows svg { width: 18px; height: 18px; fill: none; stroke: currentColor; stroke-width: 2; }
.hero-arrows .slider-prev svg { transform: rotate(180deg); }
.hero-slide--video {
    position: absolute;
    inset: 0;
    overflow: hidden;
    background: #000;
}

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

/* Product section */
.products-section { padding: 34px 0 28px; background: linear-gradient(180deg, #fff, #fbfbfb); }
.products-shell { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 260px; gap: 30px; }
.product-group { min-width: 0; padding-right: 24px; border-right: 1px solid var(--line); }
.section-heading h3 { margin: 0; text-transform: uppercase; font-size: 20px; line-height: 1.15; }
.section-heading span { display: block; width: 28px; height: 2px; margin-top: 8px; background: var(--orange); }
.product-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; margin-top: 12px; }
.product-card { min-width: 0; }
.product-card img { width: 100%; aspect-ratio: 1.15; object-fit: cover; border-radius: 8px; background: #eee; transition: transform .3s ease, box-shadow .3s ease; }
.product-card a:hover img { transform: translateY(-4px); box-shadow: 0 12px 25px rgba(0, 0, 0, .13); }
.product-card h4 { margin: 9px 0 0; font-size: 12px; line-height: 1.35; }
.outline-link { width: fit-content; min-height: 35px; margin-top: 17px; padding: 0 16px; display: inline-flex; align-items: center; gap: 17px; border: 1px solid var(--orange); color: var(--orange); text-transform: uppercase; font-size: 10px; font-weight: 700; transition: background .2s ease, color .2s ease; }
.outline-link:hover { color: #fff; background: var(--orange); }
.outline-link svg { width: 14px; height: 14px; }
.mini-certificate { position: relative; min-height: 270px; padding: 18px 18px 14px; border-radius: 12px; background: linear-gradient(135deg, #f2f3f3, #fff); overflow: hidden; }
.tse-logo-red { width: 80px; height: 52px; margin: 0 auto 8px; border-radius: 5px; }
.mini-certificate h3 { margin: 0; text-align: center; text-transform: uppercase; font-size: 18px; }
.mini-certificate p { margin: 12px 0 0; font-size: 10px; line-height: 1.55; }
.mini-certificate .outline-link { position: relative; z-index: 2; margin-top: 17px; font-size: 9px; padding-inline: 12px; }
.document-preview { position: absolute; right: 8px; bottom: 5px; width: 47px; height: 72px; object-fit: cover; border: 1px solid #d3d3d3; background: #fff; box-shadow: 0 8px 17px rgba(0, 0, 0, .16); transform: rotate(2deg); }

/* Credibility */
.credibility { padding: 0 0 16px; background: #fff; }
.credibility-shell { min-height: 118px; padding: 22px 36px; display: grid; grid-template-columns: 1.45fr 1.45fr 1.45fr .9fr .9fr .9fr; gap: 0; align-items: center; color: #fff; border-radius: 10px; background: linear-gradient(100deg, #111415, #08090a); box-shadow: none; margin-top: 50px; }
.credibility-item, .stat { min-height: 72px; display: flex; align-items: center; gap: 18px; padding: 0 28px; border-right: 1px solid rgba(255, 255, 255, .25); }
.credibility-item:first-child { padding-left: 0; }
.credibility-item svg { flex: 0 0 54px; width: 54px; height: 54px; fill: none; stroke: var(--orange); stroke-width: 1.7; }
.credibility-item h3 { margin: 0 0 7px; color: #fff; text-transform: uppercase; font-size: 13px; }
.credibility-item p { margin: 0; color: rgba(255, 255, 255, .8); font-size: 11px; line-height: 1.55; }
.stat { flex-direction: column; justify-content: center; gap: 8px; padding-inline: 18px; text-align: center; color: var(--orange); }
.stat:last-child { border-right: 0; }
.stat-value { display: inline-flex; align-items: flex-start; justify-content: center; gap: 1px; line-height: 1; }
.stat strong { font-size: 38px; line-height: 1; }
.stat-value span { margin-top: 1px; font-size: 28px; line-height: 1; font-weight: 700; }
.stat small { display: block; margin: 0; color: rgba(255, 255, 255, .86); font-size: 11px; line-height: 1.2; font-weight: 400; white-space: nowrap; }

/* Partners */
.partners { padding: 32px 0 62px; background: #fff; }
.section-kicker { margin-bottom: 5px; text-align: center; color: var(--orange); text-transform: uppercase; letter-spacing: 1.4px; font-size: 11px; font-weight: 700; }
.partners h2 { margin: 0 0 24px; text-align: center; text-transform: uppercase; font-size: clamp(22px, 2vw, 30px); }
.partner-row { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 25px; align-items: center; }
.partner-row a { min-height: 104px; padding: 12px; display: grid; place-items: center; border: 1px solid #eceeee; border-radius: 12px; background: #fafafa; transition: .22s ease; }
.partner-row a:hover { border-color: #d5d8d9; background: #fff; box-shadow: 0 12px 28px rgba(0, 0, 0, .08); transform: translateY(-3px); }
.partner-row img { width: 130px; height: 80px; object-fit: contain; filter: grayscale(1); opacity: .72; transition: .22s ease; }
.partner-row a:hover img { filter: grayscale(0); opacity: 1; }

/* About */
.about-section { padding: 92px 0; background: #f3f4f4; }
.about-grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(45px, 7vw, 105px); align-items: center; }
.about-media { position: relative; }
.about-media::after { content: ""; position: absolute; width: 45%; height: 48%; right: -18px; bottom: -18px; border: 2px solid var(--orange); border-radius: 14px; z-index: 0; }
.about-media img { position: relative; z-index: 1; width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 14px; box-shadow: var(--shadow); }
.about-copy h2 { margin: 0; max-width: 650px; text-transform: uppercase; font-size: clamp(34px, 3.6vw, 58px); line-height: 1.03; }
.about-copy > p:not(.eyebrow) { margin: 24px 0 0; color: #555c5e; font-size: 17px; line-height: 1.75; }
.about-list { margin: 24px 0 30px; display: grid; gap: 11px; }
.about-list span { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 600; }
.about-list svg { width: 21px; height: 21px; fill: none; stroke: var(--orange); stroke-width: 1.8; }


/* Solutions showcase */
.solutions-showcase { padding: 76px 0 84px; background: #fff; }
.solutions-showcase__shell { display: grid; gap: 28px; }
.solutions-showcase__intro { max-width: 940px; margin: 0 auto 4px; text-align: center; }
.solutions-showcase__kicker { margin: 0 0 7px; color: var(--orange); text-transform: uppercase; letter-spacing: .5px; font-size: 14px; font-weight: 700; }
.solutions-showcase__intro h2 { margin: 0; font-size: clamp(34px, 3vw, 48px); line-height: 1.06; letter-spacing: -1.2px; }
.solutions-showcase__intro > p:last-child,
.solutions-showcase__description { max-width: 760px; margin: 13px auto 0; color: #42484a; font-size: 16px; line-height: 1.48; }
.solutions-showcase__description p { margin: 0; }
.solution-family { display: grid; grid-template-columns: minmax(330px, 415px) minmax(0, 1fr); gap: clamp(28px, 4vw, 58px); align-items: center; padding: 26px 24px; border-radius: 10px; }
.solution-family--carbon { padding-top: 12px; padding-bottom: 12px; }
.solution-family--basalt { background: linear-gradient(100deg, #f8f5f2 0%, #f5f3f1 52%, #f8f7f6 100%); }
.solution-family__content { min-width: 0; }
.solution-family__content h3 { position: relative; margin: 0; padding-left: 18px; text-transform: uppercase; font-size: clamp(27px, 2.05vw, 34px); line-height: 1.03; letter-spacing: -.6px; }
.solution-family__content h3::before { content: ""; position: absolute; inset: 1px auto 1px 0; width: 3px; background: var(--orange); }
.solution-family__description { max-width: 390px; margin: 15px 0 0 18px; color: #252a2c; font-size: 13px; line-height: 1.55; }
.solution-family__features { margin-top: 28px; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.solution-family__feature { min-width: 0; display: grid; justify-items: center; align-content: start; gap: 9px; text-align: center; }
.solution-family__feature img { width: 44px; height: 44px; object-fit: contain; }
.solution-family__feature span { min-height: 25px; font-size: 10.5px; line-height: 1.18; white-space: normal; }
.solution-family__features--orange .solution-family__feature span { color: var(--orange-dark); }
.solution-family__button { width: fit-content; min-height: 40px; margin-top: 25px; padding: 0 21px; display: inline-flex; align-items: center; justify-content: center; gap: 26px; border: 1px solid var(--orange); border-radius: 4px; color: var(--orange-dark); text-transform: uppercase; font-size: 12px; font-weight: 700; transition: color .22s ease, background .22s ease, transform .22s ease; }
.solution-family__button:hover { color: #fff; background: var(--orange); transform: translateY(-2px); }
.solution-family__button svg { width: 17px; height: 17px; fill: none; stroke: currentColor; stroke-width: 2; }
.solution-family__products { min-width: 0; display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 10px; }
.solution-product { min-width: 0; }
.solution-product a { display: block; }
.solution-product__media { border-radius: 8px; background: #f0f0ef; overflow: hidden; }
.solution-product__media img { width: 100%; aspect-ratio: 1.2 / 1; object-fit: cover; transition: transform .36s ease, filter .36s ease; }
.solution-product h4 { margin: 9px 0 0 13px; font-size: 16px; line-height: 1.12; letter-spacing: -.2px; }
.solution-product a:hover .solution-product__media img { transform: scale(1.035); filter: contrast(1.03); }
.solution-product a:hover h4 { color: var(--orange-dark); }

/* News */
.news-section { padding: 50px 0 104px; background: #fff; }
.news-head { display: flex; align-items: end; justify-content: space-between; gap: 30px; margin-bottom: 34px; }
.news-head h2 { margin: 0; text-transform: uppercase; font-size: clamp(34px, 3.7vw, 58px); line-height: 1; }
.news-head .outline-link { margin: 0 0 7px; }
.news-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.news-card { border: 1px solid #e5e7e8; border-radius: 13px; background: #fff; overflow: hidden; transition: .25s ease; }
.news-card:hover { transform: translateY(-5px); box-shadow: 0 20px 45px rgba(0, 0, 0, .10); }
.news-card img { width: 100%; aspect-ratio: 3 / 2; object-fit: cover; }
.news-card div { padding: 24px; }
.news-card span { color: var(--orange); text-transform: uppercase; letter-spacing: 1px; font-size: 11px; font-weight: 700; }
.news-card h3 { margin: 8px 0 10px; font-size: 22px; line-height: 1.22; }
.news-card p { margin: 0; color: #676d6f; font-size: 14px; line-height: 1.65; }


/* FAQ accordion */
.faq-section { padding: 0 0 96px; background: #fff; }
.faq-shell { display: grid; grid-template-columns: minmax(270px, .72fr) minmax(0, 1.28fr); gap: clamp(48px, 7vw, 110px); align-items: start; }
.faq-intro { position: sticky; top: calc(var(--header-h) + 34px); }
.faq-intro .eyebrow { margin-bottom: 13px; }
.faq-intro h2 { margin: 0; text-transform: uppercase; font-size: clamp(34px, 3.55vw, 56px); line-height: 1.02; }
.faq-intro > p:last-child { max-width: 470px; margin: 22px 0 0; color: #646a6c; font-size: 15px; line-height: 1.7; }
.faq-list { border-top: 1px solid #dfe2e3; }
.faq-item { border-bottom: 1px solid #dfe2e3; }
.faq-item h3 { margin: 0; }
.faq-toggle { width: 100%; min-height: 82px; padding: 22px 4px 22px 0; display: flex; align-items: center; justify-content: space-between; gap: 28px; border: 0; color: var(--ink); background: transparent; text-align: left; font-size: clamp(17px, 1.45vw, 21px); line-height: 1.3; font-weight: 600; cursor: pointer; transition: color .22s ease; }
.faq-toggle:hover, .faq-toggle:focus-visible, .faq-item.is-open .faq-toggle { color: var(--orange); }
.faq-toggle:focus-visible { outline: 2px solid rgba(244, 102, 0, .35); outline-offset: 5px; border-radius: 4px; }
.faq-toggle__icon { position: relative; width: 34px; height: 34px; flex: 0 0 34px; border: 1px solid #d9dcdd; border-radius: 50%; transition: border-color .22s ease, background .22s ease, transform .28s ease; }
.faq-toggle__icon::before, .faq-toggle__icon::after { content: ""; position: absolute; left: 50%; top: 50%; width: 13px; height: 1.5px; background: currentColor; transform: translate(-50%, -50%); }
.faq-toggle__icon::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .25s ease; }
.faq-item.is-open .faq-toggle__icon { color: #fff; border-color: var(--orange); background: var(--orange); transform: rotate(180deg); }
.faq-item.is-open .faq-toggle__icon::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-panel { max-height: 0; overflow: hidden; transition: max-height .34s cubic-bezier(.2, .8, .2, 1); }
.faq-panel__inner { padding: 0 66px 25px 0; }
.faq-panel p, .faq-panel li { max-width: 760px; color: #62686a; font-size: 14px; line-height: 1.72; }
.faq-panel p { margin: 0; }
.faq-panel p + p { margin-top: 14px; }
.faq-panel h4 { max-width: 760px; margin: 20px 0 8px; color: #242728; font-size: 15px; line-height: 1.45; }
.faq-panel ul { max-width: 760px; margin: 12px 0 0; padding-left: 21px; }
.faq-panel li + li { margin-top: 5px; }
.faq-definition-list { list-style: none; padding-left: 0 !important; }
.faq-definition-list li { padding-left: 0; }

/* Contact */
.contact-section { position: relative; padding: 82px 0; color: #fff; background: var(--ink); overflow: hidden; }
.contact-section::after { content: ""; position: absolute; width: 420px; height: 420px; right: -120px; top: -210px; border: 80px solid rgba(244, 102, 0, .10); border-radius: 50%; }
.contact-shell { position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between; gap: 55px; }
.contact-shell h2 { margin: 0; font-size: clamp(34px, 4vw, 60px); line-height: 1; }
.contact-shell > div:first-child > p:last-child { max-width: 760px; margin: 20px 0 0; color: rgba(255, 255, 255, .7); font-size: 16px; }
.contact-actions { display: grid; gap: 12px; min-width: 245px; }

/* Footer */
.site-footer { padding: 68px 0 56px; color: rgba(255, 255, 255, .72); background: #070809; }
.footer-main { display: grid; grid-template-columns: 1.35fr .7fr 1fr 1.1fr; gap: clamp(35px, 5vw, 80px); }
.footer-brand { min-width: 0; color: #fff; }
.footer-brand-column > p { max-width: 360px; margin: 24px 0 0; color: rgba(255, 255, 255, .6); font-size: 14px; line-height: 1.7; }
.footer-socials { display: flex; gap: 10px; margin-top: 24px; }
.footer-socials a { width: 41px; height: 41px; display: grid; place-items: center; border: 1px solid rgba(255, 255, 255, .16); border-radius: 50%; color: #fff; transition: .2s ease; }
.footer-socials a:hover { border-color: var(--orange); background: var(--orange); }
.footer-socials svg { width: 19px; height: 19px; fill: none; stroke: currentColor; stroke-width: 1.7; }
.footer-column { display: flex; flex-direction: column; gap: 10px; }
.footer-column h3 { margin: 4px 0 12px; color: #fff; text-transform: uppercase; font-size: 15px; }
.footer-column > a {
    width: fit-content;
    font-size: 15px;
    line-height: 1.5;
    transition: color .2s ease;
}
.footer-column > a:hover { color: var(--orange); }
.footer-contact > a { width: auto; display: flex; align-items: flex-start; gap: 10px; }
.footer-contact svg { flex: 0 0 18px; width: 18px; height: 18px; margin-top: 2px; fill: none; stroke: var(--orange); stroke-width: 1.7; }
.legal-bar { padding: 15px 0; color: #5f6668; background: #e4e6e7; font-size: 11px; }
.legal-shell { display: grid; grid-template-columns: 1fr auto auto; gap: 30px; align-items: center; }
.legal-links { display: flex; gap: 22px; }
.legal-links a:hover { color: var(--orange); }
.agency-link { display: flex; align-items: center; gap: 9px; }
.agency-link span { text-transform: uppercase; font-size: 9px; letter-spacing: .6px; }
.agency-link img {
  width: 150px;
  height: 40px;
  object-fit: contain;
}

/* Mobile quick bar */

/* Fixed support and back-to-top controls */
.floating-whatsapp { position: fixed; z-index: 420; right: 0; top: 50%; width: 48px; min-width: 48px; height: 56px; padding: 0; display: grid; place-items: center; color: #fff; background: #20b85a; border-radius: 15px 0 0 15px; box-shadow: 0 14px 34px rgba(0, 0, 0, .22); transform: translateY(-50%); transition: background .22s ease, transform .22s ease, box-shadow .22s ease; }
.floating-whatsapp::before { content: ""; position: absolute; inset: -4px; z-index: -1; border: 1px solid rgba(32, 184, 90, .38); border-radius: 18px 0 0 18px; animation: whatsappPulse 2.4s ease-out infinite; }
.floating-whatsapp:hover { background: #159c49; transform: translateY(-50%) translateX(-3px); box-shadow: 0 18px 42px rgba(0, 0, 0, .28); }
.floating-whatsapp svg { width: 28px; height: 28px; fill: currentColor; stroke: none; }
.drawer-quick a[href*="wa.me"] svg { fill: currentColor; stroke: none; }
.floating-whatsapp span { position: absolute; top: 50%; right: 58px; min-width: 112px; padding: 9px 12px; display: grid; color: #fff; background: #159c49; border-radius: 10px; box-shadow: 0 12px 28px rgba(0, 0, 0, .18); line-height: 1.1; opacity: 0; visibility: hidden; transform: translate(8px, -50%); transition: opacity .2s ease, visibility .2s ease, transform .2s ease; pointer-events: none; }
.floating-whatsapp:hover span, .floating-whatsapp:focus-visible span { opacity: 1; visibility: visible; transform: translate(0, -50%); }
.floating-whatsapp strong { font-size: 13px; }
.floating-whatsapp small { margin-top: 4px; color: rgba(255, 255, 255, .82); font-size: 10px; letter-spacing: .3px; }
.back-to-top { position: fixed; z-index: 430; right: 22px; bottom: 24px; width: 48px; height: 48px; display: grid; place-items: center; border: 0; border-radius: 50%; color: #fff; background: var(--orange); box-shadow: 0 12px 28px rgba(0, 0, 0, .22); opacity: 0; visibility: hidden; pointer-events: none; transform: translateY(14px); transition: opacity .25s ease, visibility .25s ease, transform .25s ease, background .2s ease; cursor: pointer; }
.back-to-top.is-visible { opacity: 1; visibility: visible; pointer-events: auto; transform: none; }
.back-to-top:hover { background: var(--orange-dark); }
.back-to-top svg { width: 22px; height: 22px; fill: none; stroke: currentColor; stroke-width: 2; }
@keyframes whatsappPulse { 0% { opacity: .65; transform: scale(1); } 75%, 100% { opacity: 0; transform: scale(1.10, 1.18); } }

.mobile-quickbar { display: none; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .65s ease, transform .65s ease; }
.reveal.is-visible { opacity: 1; transform: none; }

@media (max-width: 1320px) {

  .solution-family { grid-template-columns: minmax(300px, 360px) minmax(0, 1fr); gap: 26px; }
  .solution-family__content h3 { font-size: 28px; }
  .solution-family__feature span { font-size: 10px; white-space: normal; }
  .solution-product h4 { margin-left: 8px; font-size: 14px; }
  :root { --header-h: 78px; }
  .section-shell, .header-shell, .hero-shell { width: min(calc(100% - 42px), var(--container)); }
  .brand { min-width: 260px; }
  .desktop-nav { gap: 21px; font-size: 11px; }
  .hero { height: auto; min-height: 720px; }
  .hero-shell { grid-template-columns: minmax(0, 1fr) 285px; gap: 30px; }
  .certificate-card { width: 285px; }
  .products-shell { grid-template-columns: 1fr 1fr; }
  .mini-certificate { grid-column: 1 / -1; min-height: 0; padding: 18px 24px; display: grid; grid-template-columns: 100px 1fr 78px; gap: 24px; align-items: center; }
  .mini-certificate h3 { text-align: left; }
  .mini-certificate p { max-width: 750px; margin-top: 6px; font-size: 12px; }
  .mini-certificate .outline-link { margin-top: 10px; }
  .tse-logo-red { width: 92px; height: 60px; margin: 0; }
  .document-preview { position: static; width: 58px; height: 82px; transform: none; justify-self: end; }
  .credibility-shell { grid-template-columns: repeat(3, 1fr); row-gap: 18px; }
  .credibility-item:nth-child(3) { border-right: 0; }
  .stat { border-top: 1px solid rgba(255, 255, 255, .16); }
}

@media (max-width: 1040px) {
  .floating-whatsapp { width: 44px; min-width: 44px; height: 52px; border-radius: 14px 0 0 14px; }
  .floating-whatsapp span { display: none; }
  .floating-whatsapp svg { width: 25px; height: 25px; }
  .back-to-top { bottom: 84px; right: 14px; }

  .solutions-showcase { padding: 82px 0 90px; }
  .solution-family { grid-template-columns: 1fr; gap: 30px; padding: 30px; }
  .solution-family--carbon { padding-top: 10px; }
  .solution-family__description { max-width: 700px; }
  .solution-family__features { max-width: 660px; }
  .solution-family__products { gap: 16px; }
  .desktop-nav { display: none; }
  .menu-toggle { display: grid; }
  .brand { min-width: 0; }
  body { padding-bottom: 68px; }
  .hero { min-height: 850px; }
  .hero-shell { grid-template-columns: minmax(0, 1fr) 250px; gap: 24px; }
  .hero h1 { font-size: clamp(38px, 6.7vw, 60px); }
  .hero-points { grid-template-columns: repeat(2, 1fr); max-width: 640px; }
  .certificate-card { width: 250px; padding-inline: 18px; }
  .certificate-note { margin-inline: -18px; }
  .products-shell { grid-template-columns: 1fr; }
  .product-group { padding-right: 0; padding-bottom: 30px; border-right: 0; border-bottom: 1px solid var(--line); }
  .mini-certificate { grid-column: auto; }
  .credibility-shell { grid-template-columns: 1fr 1fr; }
  .credibility-item:nth-child(2), .stat:nth-child(5) { border-right: 0; }
  .credibility-item:nth-child(3) { border-right: 1px solid rgba(255, 255, 255, .25); }
  .partner-row { grid-template-columns: repeat(3, 1fr); }
  .about-grid { grid-template-columns: 1fr; }
  .about-media { max-width: 760px; }
  .news-grid { grid-template-columns: 1fr 1fr; }
  .news-card:last-child { grid-column: 1 / -1; }
  .news-card:last-child a { display: grid; grid-template-columns: 1fr 1fr; }
  .news-card:last-child img { height: 100%; aspect-ratio: auto; }
  .faq-shell { grid-template-columns: 1fr; gap: 38px; }
  .faq-intro { position: static; max-width: 720px; }
  .contact-shell { display: grid; }
  .contact-actions { display: flex; flex-wrap: wrap; }
  .footer-main { grid-template-columns: 1.3fr .7fr 1fr; }
  .footer-contact { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, 1fr); align-items: start; }
  .footer-contact h3 { grid-column: 1 / -1; }
  .legal-shell { grid-template-columns: 1fr auto; }
  .legal-links { grid-column: 1 / -1; grid-row: 2; justify-content: center; }
  .mobile-quickbar { position: fixed; z-index: 450; inset: auto 0 0; min-height: 68px; display: grid; grid-template-columns: repeat(4, 1fr); color: #fff; background: rgba(10, 12, 13, .97); box-shadow: 0 -10px 32px rgba(0, 0, 0, .22); backdrop-filter: blur(14px); }
  .mobile-quickbar a { padding: 9px 4px 8px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px; border-right: 1px solid rgba(255, 255, 255, .11); font-size: 10px; }
  .mobile-quickbar a:nth-child(2) { color: #fff; background: #1ebc59; }
  .mobile-quickbar a:last-child { border-right: 0; color: #fff; background: var(--orange); }
  .mobile-quickbar svg { width: 23px; height: 23px; fill: none; stroke: currentColor; stroke-width: 1.8; }
  .mobile-quickbar a[href*="wa.me"] svg { fill: currentColor; stroke: none; }
}

@media (max-width: 760px) {
  .faq-section { padding: 0 0 72px; }
  .faq-intro { margin-bottom: 0; }
  .faq-toggle { min-height: 72px; padding-block: 18px; }
  .faq-panel__inner { padding-right: 40px; }

  .solutions-showcase { padding: 70px 0 76px; }
  .solutions-showcase__shell { gap: 25px; }
  .solutions-showcase__intro { margin-bottom: 4px; }
  .solutions-showcase__intro > p:last-child { font-size: 14px; }
  .solution-family { gap: 25px; padding: 24px 18px; }
  .solution-family--carbon { padding-inline: 0; }
  .solution-family__content h3 { font-size: 27px; }
  .solution-family__description { margin-left: 18px; font-size: 13px; }
  .solution-family__features { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 12px; }
  .solution-family__feature img { width: 42px; height: 42px; }
  .solution-family__feature span { font-size: 11px; }
  .solution-family__button { width: 100%; margin-top: 24px; padding-inline: 15px; gap: 18px; }
  .solution-family__products { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px 10px; }
  .solution-product h4 { margin-left: 4px; font-size: 14px; }
  :root { --header-h: 72px; }
  .section-shell, .header-shell, .hero-shell { width: min(calc(100% - 30px), var(--container)); }
  .brand-logo-switch { width: 210px; height: 48px; flex-basis: 210px; }
  .brand-logo { width: 210px; height: 48px; }
  .drawer-brand-logo { width: 205px; height: 48px; }
  .footer-brand-logo { width: 240px; height: 56px; }
  .mobile-drawer { width: 84vw; padding: 20px 18px 26px; }

  .hero { min-height: 980px; height: auto; max-height: none; }
  .hero-shade { background: linear-gradient(90deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .66)), linear-gradient(0deg, rgba(0, 0, 0, .65), transparent); }
  .hero-shell { min-height: 980px; padding-top: calc(var(--header-h) + 45px); padding-bottom: 92px; grid-template-columns: 1fr; align-content: center; }
  .hero h1 br { display: none; }
  .hero-lead { font-size: 15px; }
  .hero-points { gap: 15px 10px; }
  .hero-point { align-items: flex-start; gap: 10px; font-size: 12px; }
  .hero-point svg { width: 31px; height: 31px; flex-basis: 31px; }
  .hero-actions { display: grid; gap: 12px; }
  .hero-actions .button { width: 100%; }
  .certificate-card { justify-self: stretch; width: 100%; max-width: 430px; display: grid; grid-template-columns: 90px 1fr; column-gap: 18px; align-items: center; padding: 18px 18px 0; text-align: left; }
  .tse-logo-gold { grid-row: 1 / 4; width: 90px; height: 70px; margin: 0; }
  .certificate-card h2 { font-size: 20px; }
  .certificate-code { margin: 8px 0; font-size: 17px; text-align: center; }
  .certificate-card > p { margin-bottom: 12px; font-size: 11px; }
  .certificate-note { grid-column: 1 / -1; margin: 0 -18px; }
  .hero-controls { bottom: 17px; }
  .hero-arrows button { width: 38px; height: 38px; }
  .product-grid { grid-template-columns: repeat(2, 1fr); gap: 18px 10px; }
  .product-card h4 { font-size: 12px; }
  .mini-certificate { display: grid; grid-template-columns: 78px 1fr; gap: 18px; padding: 20px; }
  .tse-logo-red { width: 76px; height: 54px; }
  .document-preview { display: none; }
  .credibility-shell { padding: 24px 20px; grid-template-columns: 1fr; }
  .credibility-item, .stat, .credibility-item:nth-child(3) { border-right: 0; border-bottom: 1px solid rgba(255, 255, 255, .17); padding: 18px 0; }
  .stat { border-top: 0; }
  .stat:last-child { border-bottom: 0; }
  .partner-row { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .partner-row a:last-child { grid-column: 1 / -1; }
  .about-section { padding: 72px 0; }
  .about-copy > p:not(.eyebrow) { font-size: 15px; }
  .news-head { align-items: flex-start; flex-direction: column; }
  .news-grid { grid-template-columns: 1fr; }
  .news-card:last-child { grid-column: auto; }
  .news-card:last-child a { display: block; }
  .news-card:last-child img { height: auto; aspect-ratio: 3 / 2; }
  .faq-section { padding: 0 0 72px; }
  .faq-toggle { min-height: 72px; padding-block: 18px; }
  .faq-panel__inner { padding: 0 40px 25px 0; }
  .contact-section { padding: 68px 0; }
  .contact-actions { display: grid; }
  .contact-actions .button { width: 100%; }
  .footer-main { grid-template-columns: 1fr 1fr; }
  .footer-brand-column { grid-column: 1 / -1; }
  .footer-contact { grid-column: 1 / -1; grid-template-columns: 1fr; }
  .legal-shell { grid-template-columns: 1fr; text-align: center; }
  .legal-links { grid-column: auto; grid-row: auto; flex-wrap: wrap; justify-content: center; gap: 9px 18px; }
  .agency-link { justify-content: center; }
}

@media (max-width: 440px) {
  .floating-whatsapp { top: 44%; width: 42px; min-width: 42px; height: 50px; }
  .back-to-top { width: 44px; height: 44px; }

  .solutions-showcase__intro h2 { font-size: 32px; }
  .solution-family { padding-inline: 14px; }
  .solution-family--carbon { padding-inline: 0; }
  .solution-product h4 { margin-left: 4px; font-size: 14px; }
  .header-shell { gap: 10px; }
  .brand-logo-switch { width: 188px; height: 44px; flex-basis: 188px; }
  .brand-logo { width: 188px; height: 44px; }
  .drawer-brand-logo { width: 190px; height: 46px; }
  .menu-toggle { width: 41px; height: 41px; }
  .mobile-drawer { width: 88vw; }

  .hero { min-height: 1010px; }
  .hero-shell { min-height: 1010px; }
  .hero h1 { font-size: clamp(34px, 10vw, 44px); }
  .hero-points { grid-template-columns: 1fr 1fr; }
  .certificate-card { grid-template-columns: 76px 1fr; }
  .tse-logo-gold { width: 76px; height: 62px; }
  .mini-certificate { grid-template-columns: 1fr; text-align: center; }
  .tse-logo-red { margin-inline: auto; }
  .mini-certificate h3 { text-align: center; }
  .faq-intro h2 { font-size: 32px; }
  .faq-toggle { gap: 18px; font-size: 16px; }
  .faq-toggle__icon { width: 31px; height: 31px; flex-basis: 31px; }
  .faq-panel__inner { padding: 0 4px 22px 0; }
  .footer-main { grid-template-columns: 1fr; }
  .footer-brand-column { grid-column: auto; }
  .footer-column { padding-top: 18px; border-top: 1px solid rgba(255, 255, 255, .10); }
}

@media (max-width: 340px) {
  .solution-family__products { grid-template-columns: 1fr; }
  .solution-product__media img { aspect-ratio: 1.35 / 1; }
  .solution-product h4 { margin-left: 8px; font-size: 16px; }
}

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