:root {
    --orange: #e86e0a;
    --orange-dark: #b94e00;
    --orange-soft: #fff2e8;
    --ink: #263036;
    --ink-deep: #172026;
    --muted: #68747b;
    --paper: #f5f4f1;
    --white: #fff;
    --line: #dfe2e1;
    --footer: #4b5053;
    --max: 1120px;
    --shadow: 0 18px 45px rgba(31, 40, 45, .14);
    --serif: Georgia, "Times New Roman", serif;
    --sans: "Avenir Next", Avenir, "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    margin: 0;
    color: var(--ink);
    background: var(--white);
    font-family: var(--sans);
    font-size: 1rem;
    line-height: 1.7;
    text-rendering: optimizeLegibility;
}

body,
button,
input,
textarea {
    font-family: var(--sans);
}

img,
video {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
}

button,
input,
textarea {
    font: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

:focus-visible {
    outline: 3px solid #1459b8;
    outline-offset: 3px;
}

.shell {
    width: min(calc(100% - 3rem), var(--max));
    margin-inline: auto;
}

.skip-link {
    position: fixed;
    z-index: 1000;
    top: .75rem;
    left: .75rem;
    padding: .65rem 1rem;
    color: var(--white);
    background: var(--ink-deep);
    transform: translateY(-160%);
}

.skip-link:focus {
    transform: translateY(0);
}

.review-bar {
    color: #fff4e8;
    background: var(--ink-deep);
    font-size: .78rem;
    font-weight: 700;
    letter-spacing: .025em;
    line-height: 1.45;
    text-align: center;
}

.review-bar .shell {
    padding-block: .55rem;
}

.site-header {
    position: relative;
    z-index: 50;
    background: var(--orange);
}

.brand-band {
    color: var(--white);
    background: var(--orange);
}

.brand-row {
    display: grid;
    grid-template-columns: 1fr auto;
    min-height: 112px;
    align-items: center;
    gap: 2rem;
    padding-bottom: 24px;
}

.brand {
    width: max-content;
}

.brand img,
.footer-brand img {
    width: 235px;
    height: auto;
}

.header-contact {
    display: grid;
    gap: .05rem;
    padding-left: 2rem;
    border-left: 1px solid rgba(255, 255, 255, .44);
    line-height: 1.35;
    text-align: right;
}

.header-contact span {
    color: rgba(255, 255, 255, .78);
    font-size: .7rem;
    font-weight: 700;
    letter-spacing: .12em;
    text-transform: uppercase;
}

.header-contact a {
    font-size: 1.12rem;
    font-weight: 800;
    text-decoration: none;
}

.nav-wrap {
    position: absolute;
    right: 0;
    bottom: -31px;
    left: 0;
    min-height: 62px;
    padding-inline: 1.1rem;
    background: var(--white);
    box-shadow: var(--shadow);
}

.site-nav,
.nav-list {
    min-height: inherit;
}

.nav-list,
.submenu {
    margin: 0;
    padding: 0;
    list-style: none;
}

.nav-list {
    display: flex;
    align-items: stretch;
    justify-content: center;
}

.nav-item {
    position: relative;
    display: flex;
    align-items: stretch;
}

.nav-label {
    display: flex;
    align-items: stretch;
}

.nav-label > a {
    position: relative;
    display: flex;
    align-items: center;
    padding: 0 clamp(.58rem, 1.25vw, 1.05rem);
    color: #3f484d;
    font-size: .74rem;
    font-weight: 800;
    letter-spacing: .075em;
    text-decoration: none;
    text-transform: uppercase;
}

.nav-label > a::after {
    position: absolute;
    right: .8rem;
    bottom: 0;
    left: .8rem;
    height: 3px;
    background: var(--orange);
    content: "";
    transform: scaleX(0);
    transition: transform .18s ease;
}

.nav-label > a:hover,
.nav-label > a[aria-current="page"],
.nav-label > a:focus-visible {
    color: var(--orange-dark);
}

.nav-label > a:hover::after,
.nav-label > a[aria-current="page"]::after,
.nav-label > a:focus-visible::after {
    transform: scaleX(1);
}

.submenu-toggle {
    display: none;
}

.submenu {
    position: absolute;
    top: calc(100% - 1px);
    left: 0;
    min-width: 265px;
    padding-block: .55rem;
    border-top: 3px solid var(--orange);
    background: var(--white);
    box-shadow: 0 18px 35px rgba(31, 40, 45, .2);
    opacity: 0;
    pointer-events: none;
    transform: translateY(8px);
    transition: opacity .16s ease, transform .16s ease;
}

.has-children:hover .submenu,
.has-children:focus-within .submenu {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.submenu a {
    display: block;
    padding: .65rem 1rem;
    color: #3f484d;
    font-size: .88rem;
    font-weight: 650;
    line-height: 1.4;
    text-decoration: none;
}

.submenu a:hover,
.submenu a:focus-visible,
.submenu a[aria-current="page"] {
    color: var(--orange-dark);
    background: var(--orange-soft);
}

.nav-toggle {
    display: none;
}

.home-hero {
    position: relative;
    min-height: 555px;
    overflow: hidden;
    color: var(--white);
    background: #4d5558;
    isolation: isolate;
}

.hero-slides,
.hero-overlay,
.hero-slide {
    position: absolute;
    inset: 0;
}

.hero-slides {
    z-index: -2;
}

.hero-slide {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    opacity: 0;
    transform: scale(1.025);
    transition: opacity 1.1s ease, transform 7.5s linear;
}

.hero-slide.is-active {
    opacity: 1;
    transform: scale(1);
}

.hero-overlay {
    z-index: -1;
    background:
        linear-gradient(90deg, rgba(21, 29, 33, .9), rgba(21, 29, 33, .48) 58%, rgba(21, 29, 33, .14)),
        linear-gradient(0deg, rgba(21, 29, 33, .45), transparent 50%);
}

.hero-content {
    padding-top: 128px;
    padding-bottom: 90px;
}

.eyebrow {
    margin: 0 0 .9rem;
    color: var(--orange);
    font-size: .75rem;
    font-weight: 850;
    letter-spacing: .15em;
    line-height: 1.4;
    text-transform: uppercase;
}

.home-hero .eyebrow {
    color: #ffb67a;
}

.home-hero h1,
.page-masthead h1,
.section-heading h2,
.project-grid h2,
.trust-section h2,
.contact-layout h2,
.not-found h1 {
    margin: 0;
    font-family: var(--serif);
    font-weight: 400;
    letter-spacing: -.035em;
    line-height: 1.04;
}

.home-hero h1 {
    max-width: 830px;
    font-size: clamp(3.55rem, 7vw, 6.5rem);
    text-transform: none;
}

.home-hero h1 span {
    color: #ffc392;
    font-style: italic;
}

.home-hero .hero-content > p:not(.eyebrow) {
    max-width: 600px;
    margin: 1.45rem 0 2rem;
    color: rgba(255, 255, 255, .9);
    font-size: clamp(1.05rem, 2vw, 1.24rem);
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
}

.button {
    display: inline-flex;
    min-height: 50px;
    align-items: center;
    justify-content: center;
    padding: .75rem 1.35rem;
    border: 1px solid transparent;
    border-radius: 1px;
    font-size: .78rem;
    font-weight: 850;
    letter-spacing: .07em;
    line-height: 1.3;
    text-align: center;
    text-decoration: none;
    text-transform: uppercase;
    transition: background .18s ease, border-color .18s ease, color .18s ease, transform .18s ease;
}

.button:hover,
.button:focus-visible {
    transform: translateY(-2px);
}

.button-primary {
    color: var(--white);
    background: var(--orange);
}

.button-primary:hover,
.button-primary:focus-visible {
    background: var(--orange-dark);
}

.button-light {
    color: var(--white);
    border-color: rgba(255, 255, 255, .66);
    background: rgba(255, 255, 255, .06);
}

.button-light:hover,
.button-light:focus-visible {
    color: var(--ink-deep);
    background: var(--white);
}

.button-outline {
    color: var(--orange-dark);
    border-color: var(--orange);
    background: transparent;
}

.button-outline:hover,
.button-outline:focus-visible {
    color: var(--white);
    background: var(--orange);
}

.text-link {
    display: inline-flex;
    align-items: center;
    gap: .65rem;
    color: var(--orange-dark);
    font-size: .78rem;
    font-weight: 850;
    letter-spacing: .065em;
    text-decoration: none;
    text-transform: uppercase;
}

.text-link span {
    font-size: 1.3rem;
    transition: transform .18s ease;
}

.text-link:hover span,
.text-link:focus-visible span {
    transform: translateX(4px);
}

.section {
    padding-block: clamp(4.5rem, 8vw, 7rem);
}

.home-intro {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .75fr);
    gap: clamp(3rem, 9vw, 7.5rem);
    align-items: start;
}

.section-heading h2,
.project-grid h2,
.trust-section h2,
.contact-layout h2 {
    font-size: clamp(2.35rem, 4.5vw, 4.2rem);
}

.section-heading-row {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 2.5rem;
}

.intro-copy p {
    margin-top: 0;
}

.lead {
    color: var(--ink-deep);
    font-size: 1.2rem;
    line-height: 1.6;
}

.feature-band {
    color: var(--white);
    background: var(--ink-deep);
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
}

.feature-grid article {
    min-height: 310px;
    padding: 3rem 2.25rem;
    border-left: 1px solid rgba(255, 255, 255, .15);
}

.feature-grid article:last-child {
    border-right: 1px solid rgba(255, 255, 255, .15);
}

.feature-number {
    display: block;
    margin-bottom: 1.5rem;
    color: #ffad6a;
    font-family: var(--serif);
    font-size: 3.2rem;
    line-height: 1;
}

.feature-number small {
    font-size: 1.2rem;
}

.feature-grid h2 {
    margin: 0 0 .75rem;
    font-family: var(--serif);
    font-size: 1.5rem;
    font-weight: 400;
}

.feature-grid p {
    margin: 0;
    color: rgba(255, 255, 255, .68);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.5rem;
}

.product-grid-featured {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.product-card {
    display: grid;
    min-width: 0;
    overflow: hidden;
    color: var(--ink);
    border: 1px solid var(--line);
    background: var(--white);
    text-decoration: none;
    transition: box-shadow .2s ease, transform .2s ease;
}

.product-card:hover,
.product-card:focus-visible {
    box-shadow: var(--shadow);
    transform: translateY(-5px);
}

.product-card-wide {
    grid-column: span 2;
}

.card-image {
    display: block;
    overflow: hidden;
    background: #e8e8e5;
    aspect-ratio: 16 / 9;
}

.product-card-wide .card-image {
    aspect-ratio: 2.35 / 1;
}

.card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

.product-card:hover .card-image img,
.product-card:focus-visible .card-image img {
    transform: scale(1.035);
}

.card-body {
    display: flex;
    min-height: 235px;
    flex-direction: column;
    align-items: flex-start;
    padding: 1.55rem;
}

.card-body > strong {
    margin-bottom: .65rem;
    font-family: var(--serif);
    font-size: 1.55rem;
    font-weight: 400;
    line-height: 1.2;
}

.trust-section {
    display: block;
}

.trust-section > div {
    max-width: 760px;
}

.image-gallery {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card-body > span:not(.card-index) {
    color: var(--muted);
    line-height: 1.55;
}

.card-body i,
.download-card i {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-top: auto;
    padding-top: 1.4rem;
    color: var(--orange-dark);
    font-size: .75rem;
    font-style: normal;
    font-weight: 850;
    letter-spacing: .07em;
    text-transform: uppercase;
}

.card-body i b,
.download-card i b {
    font-size: 1.2rem;
}

.card-index {
    margin-bottom: .8rem;
    color: var(--orange);
    font-size: .72rem;
    font-weight: 850;
    letter-spacing: .1em;
}

.project-band {
    padding-block: clamp(4rem, 8vw, 7rem);
    background: var(--paper);
}

.project-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .85fr);
    gap: clamp(3rem, 8vw, 7rem);
    align-items: center;
}

.project-grid img {
    width: 100%;
    box-shadow: 18px 18px 0 var(--orange);
}

.project-grid p:not(.eyebrow) {
    margin: 1.3rem 0 1.8rem;
    color: var(--muted);
}

.trust-section {
    display: grid;
    grid-template-columns: .8fr 1.2fr;
    gap: clamp(3rem, 7vw, 6rem);
    align-items: center;
    padding-block: clamp(4rem, 8vw, 6.5rem);
}

.trust-section h2 {
    font-size: clamp(2.2rem, 4vw, 3.6rem);
}

.trust-section p:not(.eyebrow) {
    color: var(--muted);
}

.trust-section img {
    width: 100%;
    height: auto;
}

.page-masthead {
    padding: 96px 0 64px;
    color: var(--white);
    background:
        linear-gradient(90deg, rgba(27, 35, 39, .98), rgba(56, 64, 68, .9)),
        url("/assets/images/hero/underfloor-system.jpg") center / cover;
}

.masthead-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(280px, .72fr);
    gap: clamp(3rem, 8vw, 7rem);
    align-items: end;
}

.page-masthead .eyebrow {
    color: #ffb67a;
}

.page-masthead h1 {
    font-size: clamp(3rem, 6vw, 5.4rem);
}

.page-masthead p:last-child {
    margin: 0;
    color: rgba(255, 255, 255, .78);
    font-size: 1.08rem;
}

.page-hero {
    margin-top: 3.5rem;
    overflow: hidden;
    background: var(--paper);
    box-shadow: var(--shadow);
}

.page-hero img {
    width: 100%;
    height: clamp(280px, 42vw, 510px);
    object-fit: cover;
}

.page-article .page-hero img[src$="insulation.jpg"] {
    object-fit: contain;
    padding: 2rem;
}

.article-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 315px;
    gap: clamp(3rem, 8vw, 7rem);
    align-items: start;
}

.content-section + .content-section {
    margin-top: 3.5rem;
    padding-top: 3.5rem;
    border-top: 1px solid var(--line);
}

.content-section h2,
.faq-group-heading h2,
.document-group h2,
.video-card h2,
.policy-copy h2,
.aside-card h2 {
    margin: 0 0 .9rem;
    color: var(--ink-deep);
    font-family: var(--serif);
    font-size: clamp(1.7rem, 3vw, 2.5rem);
    font-weight: 400;
    line-height: 1.18;
}

.content-section > p {
    margin: 0;
    color: var(--muted);
    font-size: 1.05rem;
}

.tick-list {
    display: grid;
    gap: .6rem;
    margin: 1.4rem 0 0;
    padding: 0;
    list-style: none;
}

.tick-list li {
    position: relative;
    padding-left: 1.8rem;
}

.tick-list li::before {
    position: absolute;
    top: .1rem;
    left: 0;
    color: var(--orange);
    content: "✓";
    font-weight: 900;
}

.aside-card {
    position: sticky;
    top: 2rem;
    padding: 2rem;
    border-top: 4px solid var(--orange);
    background: var(--paper);
}

.aside-card h2 {
    font-size: 1.85rem;
}

.aside-card p:not(.eyebrow) {
    color: var(--muted);
}

.gallery-section {
    padding-bottom: clamp(4rem, 8vw, 7rem);
}

.gallery-section .section-heading {
    margin-bottom: 2rem;
}

.image-gallery {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.25rem;
}

.image-gallery figure {
    margin: 0;
    border: 1px solid var(--line);
    background: var(--white);
}

.image-gallery img {
    width: 100%;
    height: 260px;
    object-fit: contain;
    background: var(--paper);
}

.image-gallery figcaption {
    padding: .85rem 1rem;
    color: var(--muted);
    font-size: .85rem;
}

.page-notice-wrap {
    padding-bottom: clamp(4rem, 8vw, 7rem);
}

.notice {
    display: grid;
    grid-template-columns: minmax(180px, .28fr) 1fr;
    gap: 1.25rem;
    margin-bottom: 2.2rem;
    padding: 1.1rem 1.25rem;
    border-left: 4px solid var(--orange);
    color: #5c4635;
    background: var(--orange-soft);
    line-height: 1.55;
}

.notice strong {
    color: var(--ink-deep);
}

.notice-technical {
    border-color: #52656f;
    color: #44545c;
    background: #eef2f3;
}

.faq-tools {
    display: grid;
    gap: 1.25rem;
    margin-bottom: 4rem;
    padding: 1.6rem;
    border: 1px solid var(--line);
    background: var(--paper);
}

.search-field {
    display: grid;
    gap: .45rem;
    max-width: 620px;
    font-size: .8rem;
    font-weight: 800;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.search-field input,
.contact-form input,
.contact-form textarea {
    width: 100%;
    border: 1px solid #bcc3c5;
    border-radius: 0;
    color: var(--ink-deep);
    background: var(--white);
}

.search-field input {
    min-height: 52px;
    padding: .7rem .9rem;
    font-size: 1rem;
    font-weight: 500;
    letter-spacing: 0;
    text-transform: none;
}

.faq-filters {
    display: flex;
    flex-wrap: wrap;
    gap: .55rem;
}

.faq-filters button {
    padding: .55rem .8rem;
    border: 1px solid #b9c0c2;
    color: #475259;
    background: var(--white);
    font-size: .76rem;
    font-weight: 750;
    cursor: pointer;
}

.faq-filters button:hover,
.faq-filters button.is-active {
    color: var(--white);
    border-color: var(--orange-dark);
    background: var(--orange-dark);
}

.faq-count {
    margin: 0;
    color: var(--muted);
    font-size: .88rem;
}

.faq-group + .faq-group {
    margin-top: 5rem;
}

.faq-group[hidden],
.faq-item[hidden] {
    display: none;
}

.faq-group-heading {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: end;
    margin-bottom: 1.5rem;
}

.faq-group-heading .eyebrow {
    grid-column: 1 / -1;
}

.faq-group-heading h2 {
    margin: 0;
}

.faq-group-heading > span {
    color: var(--muted);
    font-size: .84rem;
}

.faq-item {
    border-top: 1px solid var(--line);
}

.faq-item:last-child {
    border-bottom: 1px solid var(--line);
}

.faq-item summary {
    display: grid;
    grid-template-columns: 1fr 30px;
    gap: 1rem;
    align-items: center;
    padding: 1.3rem .25rem;
    color: var(--ink-deep);
    font-size: 1.02rem;
    font-weight: 750;
    cursor: pointer;
    list-style: none;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary i {
    position: relative;
    width: 24px;
    height: 24px;
}

.faq-item summary i::before,
.faq-item summary i::after {
    position: absolute;
    top: 11px;
    left: 4px;
    width: 16px;
    height: 2px;
    background: var(--orange);
    content: "";
}

.faq-item summary i::after {
    transform: rotate(90deg);
    transition: transform .15s ease;
}

.faq-item[open] summary i::after {
    transform: rotate(0);
}

.faq-answer {
    max-width: 850px;
    padding: 0 3.2rem 1.5rem .25rem;
    color: var(--muted);
}

.recovered-content p:first-child {
    margin-top: 0;
}

.recovered-content p:last-child {
    margin-bottom: 0;
}

.recovered-content a {
    color: var(--orange-dark);
}

.download-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.4rem;
}

.download-card {
    display: grid;
    grid-template-columns: 42% 1fr;
    min-height: 220px;
    overflow: hidden;
    border: 1px solid var(--line);
    color: var(--ink);
    text-decoration: none;
    transition: box-shadow .2s ease, transform .2s ease;
}

.download-card:first-child {
    grid-column: 1 / -1;
}

.download-card:hover,
.download-card:focus-visible {
    box-shadow: var(--shadow);
    transform: translateY(-4px);
}

.download-card img {
    width: 100%;
    height: 100%;
    min-height: 220px;
    object-fit: cover;
    background: var(--paper);
}

.download-card > span {
    display: flex;
    flex-direction: column;
    padding: 1.6rem;
}

.download-card strong {
    font-family: var(--serif);
    font-size: 1.6rem;
    font-weight: 400;
    line-height: 1.2;
}

.download-card small {
    margin-top: .65rem;
    color: var(--muted);
    font-size: .9rem;
    line-height: 1.55;
}

.document-groups {
    display: grid;
    gap: 4rem;
}

.document-group {
    display: grid;
    grid-template-columns: minmax(220px, .36fr) 1fr;
    gap: 3rem;
}

.document-group h2 {
    margin: 0;
    font-size: 2rem;
}

.document-link {
    display: grid;
    grid-template-columns: 48px 1fr auto;
    gap: 1rem;
    align-items: center;
    padding: 1rem .2rem;
    border-top: 1px solid var(--line);
    color: var(--ink);
    text-decoration: none;
}

.document-link:last-child {
    border-bottom: 1px solid var(--line);
}

.document-link:hover strong,
.document-link:focus-visible strong {
    color: var(--orange-dark);
}

.document-icon {
    display: grid;
    width: 45px;
    height: 52px;
    place-items: center;
    color: var(--white);
    background: var(--orange);
    font-size: .65rem;
    font-weight: 850;
}

.document-link > span:nth-child(2) {
    display: grid;
}

.document-link strong {
    line-height: 1.35;
}

.document-link small {
    color: var(--muted);
}

.document-link > i {
    color: var(--orange-dark);
    font-size: 1.4rem;
    font-style: normal;
}

.video-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1.6rem;
}

.video-card {
    overflow: hidden;
    border: 1px solid var(--line);
    background: var(--white);
}

.video-card video {
    width: 100%;
    aspect-ratio: 16 / 9;
    background: var(--ink-deep);
}

.video-card > div {
    display: grid;
    grid-template-columns: 42px 1fr;
    gap: 1rem;
    align-items: start;
    padding: 1.25rem;
}

.video-card > div > span {
    color: var(--orange);
    font-size: .75rem;
    font-weight: 850;
    letter-spacing: .1em;
}

.video-card h2 {
    margin: 0;
    font-size: 1.35rem;
}

.contact-layout {
    display: grid;
    grid-template-columns: minmax(0, .8fr) minmax(390px, 1fr);
    gap: clamp(3rem, 8vw, 7rem);
    align-items: start;
}

.contact-details > p:not(.eyebrow) {
    color: var(--muted);
}

.contact-details dl {
    margin: 2.2rem 0;
}

.contact-details dl > div {
    display: grid;
    grid-template-columns: 105px 1fr;
    gap: 1rem;
    padding: .9rem 0;
    border-top: 1px solid var(--line);
}

.contact-details dl > div:last-child {
    border-bottom: 1px solid var(--line);
}

.contact-details dt {
    color: var(--muted);
    font-size: .75rem;
    font-weight: 850;
    letter-spacing: .07em;
    text-transform: uppercase;
}

.contact-details dd {
    margin: 0;
}

.contact-details dd a {
    color: var(--orange-dark);
    font-weight: 700;
}

.contact-form-card {
    padding: clamp(1.5rem, 4vw, 3rem);
    border-top: 5px solid var(--orange);
    background: var(--paper);
    box-shadow: var(--shadow);
}

.contact-form-card h2 {
    margin-bottom: 1.8rem;
    font-size: 2.6rem;
}

.contact-form {
    display: grid;
    gap: 1.1rem;
}

.contact-form > label:not(.checkbox-field):not(.honeypot) {
    display: grid;
    gap: .4rem;
}

.contact-form label > span {
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .04em;
    text-transform: uppercase;
}

.contact-form input,
.contact-form textarea {
    padding: .7rem .8rem;
}

.contact-form input {
    min-height: 48px;
}

.contact-form textarea {
    resize: vertical;
}

.contact-form input[aria-invalid="true"],
.contact-form textarea[aria-invalid="true"] {
    border-color: #b32f1e;
}

.checkbox-field {
    display: grid;
    grid-template-columns: 20px 1fr;
    gap: .75rem;
    align-items: start;
}

.checkbox-field input {
    width: 18px;
    min-height: 18px;
    margin-top: .25rem;
}

.checkbox-field span {
    font-size: .88rem !important;
    font-weight: 500 !important;
    letter-spacing: 0 !important;
    text-transform: none !important;
}

.field-error {
    color: #a42517;
    font-size: .8rem;
    font-weight: 700;
}

.form-status {
    margin-bottom: 1.4rem;
    padding: .8rem 1rem;
    border-left: 4px solid #a42517;
    background: #fff0ed;
}

.form-status-success {
    border-color: #287345;
    background: #ecf7f0;
}

.form-help {
    margin: 0;
    color: var(--muted);
    font-size: .8rem;
}

.honeypot {
    position: absolute !important;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(1px, 1px, 1px, 1px);
    white-space: nowrap;
}

.policy-layout {
    max-width: 900px;
}

.policy-copy {
    display: grid;
    gap: 2.6rem;
}

.policy-copy section + section {
    padding-top: 2.6rem;
    border-top: 1px solid var(--line);
}

.policy-copy h2 {
    font-size: 2rem;
}

.policy-copy p {
    color: var(--muted);
}

.not-found {
    min-height: 560px;
    padding-block: 130px 90px;
}

.not-found h1 {
    max-width: 700px;
    font-size: clamp(3.3rem, 7vw, 6rem);
}

.not-found > p:not(.eyebrow) {
    margin-bottom: 2rem;
    color: var(--muted);
    font-size: 1.15rem;
}

.site-footer {
    color: rgba(255, 255, 255, .74);
    background: var(--footer);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.6fr repeat(3, .7fr);
    gap: 3rem;
    padding-block: 4rem;
}

.footer-brand img {
    margin-bottom: 1.1rem;
}

.footer-brand p {
    max-width: 340px;
}

.footer-grid > div:not(.footer-brand) {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: .45rem;
}

.footer-grid h2 {
    margin: 0 0 .7rem;
    color: var(--white);
    font-size: .75rem;
    letter-spacing: .1em;
    text-transform: uppercase;
}

.footer-grid a {
    font-size: .88rem;
    text-decoration: none;
}

.footer-grid a:hover,
.footer-grid a:focus-visible {
    color: var(--white);
    text-decoration: underline;
}

.footer-base {
    display: flex;
    justify-content: space-between;
    gap: 2rem;
    padding-block: 1.2rem;
    border-top: 1px solid rgba(255, 255, 255, .15);
    font-size: .73rem;
}

@media (max-width: 980px) {
    .brand-row {
        min-height: 88px;
        padding-bottom: 0;
    }

    .nav-toggle {
        display: grid;
        grid-template-columns: auto 25px;
        gap: .65rem;
        align-items: center;
        padding: .55rem .65rem;
        border: 1px solid rgba(255, 255, 255, .7);
        color: var(--white);
        background: transparent;
        font-size: .74rem;
        font-weight: 800;
        letter-spacing: .08em;
        text-transform: uppercase;
        cursor: pointer;
    }

    .nav-toggle i,
    .nav-toggle i::before,
    .nav-toggle i::after {
        display: block;
        width: 23px;
        height: 2px;
        background: currentColor;
        content: "";
    }

    .nav-toggle i {
        position: relative;
    }

    .nav-toggle i::before,
    .nav-toggle i::after {
        position: absolute;
        left: 0;
    }

    .nav-toggle i::before {
        top: -7px;
    }

    .nav-toggle i::after {
        top: 7px;
    }

    .nav-wrap {
        position: static;
        width: 100%;
        min-height: 0;
        padding-inline: 0;
        background: var(--white);
        box-shadow: 0 12px 30px rgba(31, 40, 45, .14);
    }

    .site-nav {
        display: none;
    }

    .site-nav.is-open {
        display: block;
    }

    .nav-list {
        display: block;
        max-height: calc(100vh - 125px);
        overflow-y: auto;
    }

    .nav-item,
    .nav-label {
        display: block;
    }

    .nav-label {
        position: relative;
        border-top: 1px solid var(--line);
    }

    .nav-label > a {
        min-height: 52px;
        padding: .7rem 4rem .7rem 1.5rem;
    }

    .nav-label > a::after {
        right: auto;
        left: 0;
        width: 4px;
        height: 100%;
    }

    .submenu-toggle {
        position: absolute;
        top: 0;
        right: 0;
        display: grid;
        width: 52px;
        height: 52px;
        place-items: center;
        border: 0;
        border-left: 1px solid var(--line);
        color: var(--orange-dark);
        background: transparent;
        cursor: pointer;
    }

    .submenu-toggle span {
        width: 9px;
        height: 9px;
        border-right: 2px solid currentColor;
        border-bottom: 2px solid currentColor;
        transform: translateY(-2px) rotate(45deg);
        transition: transform .15s ease;
    }

    .submenu-toggle[aria-expanded="true"] span {
        transform: translateY(2px) rotate(225deg);
    }

    .submenu {
        position: static;
        display: none;
        min-width: 0;
        padding: .25rem 0 .65rem 1rem;
        border-top: 0;
        background: var(--paper);
        box-shadow: none;
        opacity: 1;
        pointer-events: auto;
        transform: none;
    }

    .submenu.is-open {
        display: block;
    }

    .submenu a {
        padding: .55rem 1.5rem;
    }

    .hero-content {
        padding-top: 80px;
    }

    .home-intro,
    .project-grid,
    .trust-section,
    .masthead-grid,
    .contact-layout {
        grid-template-columns: 1fr;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .feature-grid article {
        min-height: 0;
        border-right: 1px solid rgba(255, 255, 255, .15);
        border-bottom: 1px solid rgba(255, 255, 255, .15);
    }

    .product-grid-featured {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .product-grid-featured .product-card:last-child {
        grid-column: 1 / -1;
    }

    .article-layout {
        grid-template-columns: 1fr;
    }

    .aside-card {
        position: static;
    }

    .footer-grid {
        grid-template-columns: 1.5fr repeat(3, 1fr);
        gap: 2rem;
    }
}

@media (max-width: 720px) {
    .shell {
        width: min(calc(100% - 2rem), var(--max));
    }

    .review-bar {
        text-align: left;
    }

    .brand img {
        width: 190px;
    }

    .header-contact {
        display: none;
    }

    .brand-row {
        grid-template-columns: 1fr auto;
        gap: 1rem;
    }

    .home-hero {
        min-height: 520px;
    }

    .home-hero h1 {
        font-size: clamp(3rem, 14vw, 4.6rem);
    }

    .section-heading-row {
        display: block;
    }

    .section-heading-row .text-link {
        margin-top: 1.5rem;
    }

    .product-grid,
    .product-grid-featured,
    .image-gallery,
    .download-grid,
    .video-grid {
        grid-template-columns: 1fr;
    }

    .product-card-wide,
    .product-grid-featured .product-card:last-child,
    .download-card:first-child {
        grid-column: auto;
    }

    .product-card-wide .card-image {
        aspect-ratio: 16 / 9;
    }

    .download-card {
        grid-template-columns: 1fr;
    }

    .download-card img {
        min-height: 0;
        aspect-ratio: 16 / 8;
    }

    .notice,
    .document-group {
        grid-template-columns: 1fr;
        gap: .6rem;
    }

    .page-masthead {
        padding: 72px 0 48px;
    }

    .masthead-grid {
        gap: 1.4rem;
    }

    .page-masthead h1 {
        font-size: clamp(2.7rem, 13vw, 4.2rem);
    }

    .faq-group-heading {
        display: block;
    }

    .faq-group-heading > span {
        display: block;
        margin-top: .3rem;
    }

    .document-link {
        grid-template-columns: 42px 1fr auto;
    }

    .contact-layout {
        min-width: 0;
    }

    .contact-form-card {
        min-width: 0;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .footer-base {
        flex-direction: column;
        gap: .4rem;
    }
}

@media (max-width: 460px) {
    .brand img {
        width: 165px;
    }

    .nav-toggle {
        grid-template-columns: 22px;
        padding: .65rem;
    }

    .nav-toggle span {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(1px, 1px, 1px, 1px);
    }

    .home-hero h1 {
        font-size: 2.9rem;
    }

    .button-row .button {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-brand {
        grid-column: auto;
    }
}

@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;
    }
}

/* Recovered J51 Kindle visual treatment */
:root {
    --max: 1100px;
    --serif: "Open Sans", Arial, Helvetica, sans-serif;
    --sans: "Open Sans", Arial, Helvetica, sans-serif;
    --muted: #5d686e;
    --footer: #eee;
}

body {
    color: #616161;
    background: #fff;
    font-family: var(--sans);
}

:focus-visible {
    outline: 3px solid #172026;
    outline-offset: 3px;
}

.site-header a:focus-visible,
.site-header button:focus-visible {
    outline-color: #fff;
    box-shadow: 0 0 0 2px #172026;
}

.review-bar {
    min-height: 35px;
}

.site-header {
    position: fixed;
    top: 40px;
    right: 0;
    left: 0;
    z-index: 50;
    background: transparent;
}

.has-review-bar .site-header {
    top: 75px;
}

.brand-band {
    background: transparent;
}

.brand-row {
    position: relative;
    display: block;
    min-height: 100px;
    padding: 5px 16px;
    border-radius: 5px;
    background: var(--orange);
}

.brand {
    display: block;
    width: 340px;
    height: 90px;
}

.brand img {
    width: 340px;
    height: 90px;
}

.nav-wrap {
    position: absolute;
    top: -15px;
    right: max(15px, calc((100vw - var(--max)) / 2 + 15px));
    bottom: auto;
    left: auto;
    width: auto;
    min-height: 130px;
    padding: 15px;
    border-bottom: 1px solid #e1e1e1;
    border-radius: 5px;
    background: #fff;
    box-shadow: 0 0 20px rgba(0, 0, 0, .2);
}

.nav-wrap::after {
    position: absolute;
    right: 4%;
    bottom: -13px;
    left: 4%;
    height: 13px;
    border-radius: 50%;
    background: rgba(0, 0, 0, .1);
    filter: blur(7px);
    content: "";
    z-index: -1;
}

.site-nav,
.nav-list {
    min-height: 100px;
}

.nav-label > a {
    min-height: 100px;
    padding: 0 clamp(.5rem, .8vw, .82rem);
    border-radius: 4px;
    color: var(--orange-dark);
    font-family: Verdana, Geneva, sans-serif;
    font-size: .7rem;
    letter-spacing: .065em;
}

.nav-label > a::after {
    display: none;
}

.nav-label > a:hover,
.nav-label > a[aria-current="page"],
.nav-item.is-ancestor > .nav-label > a,
.nav-label > a:focus-visible {
    color: #444;
    background: #ededed;
}

.submenu {
    top: 100%;
    border-top: 0;
    border-radius: 0 0 5px 5px;
    background: #fafafa;
}

.home-hero {
    min-height: 400px;
    border-bottom: 1px solid #fff;
    background: #e5e5e5;
}

.hero-slide {
    object-position: center;
    transform: none;
    transition: opacity .9s ease;
}

.hero-slide.is-active {
    transform: none;
}

.slideshow-toggle {
    position: absolute;
    right: max(1rem, calc((100vw - var(--max)) / 2));
    bottom: 1rem;
    z-index: 2;
    padding: .45rem .7rem;
    border: 1px solid #fff;
    border-radius: 3px;
    color: #fff;
    background: rgba(23, 32, 38, .86);
    font-size: .73rem;
    font-weight: 700;
    cursor: pointer;
}

.home-statement {
    padding: 2.6rem 1rem 3rem;
    text-align: center;
    background: rgba(250, 250, 250, .96);
}

.home-statement .eyebrow {
    margin-bottom: .65rem;
}

.home-statement h1 {
    margin: 0;
    color: #444;
    font-family: var(--sans);
    font-size: clamp(1.9rem, 3.7vw, 3rem);
    font-weight: 300;
    letter-spacing: .17em;
    line-height: 1.25;
    text-transform: uppercase;
}

.home-statement h1 span {
    display: block;
    margin-bottom: .25rem;
    color: #697378;
    font-size: .55em;
    letter-spacing: .55em;
}

.home-statement > .shell > p:not(.eyebrow) {
    margin: 1rem auto 1.25rem;
    max-width: 660px;
    color: var(--muted);
}

.home-statement .button-row {
    justify-content: center;
}

.legacy-home-main {
    position: relative;
    z-index: 1;
    padding-block: 1.6rem 2.5rem;
    background: #fff;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, .18);
}

.legacy-home-panel {
    padding: 1.65rem;
    color: #737373;
    background: #fff;
    font-family: Helvetica, Arial, sans-serif;
    font-size: .83rem;
    line-height: 1.6;
}

.legacy-home-title {
    display: grid;
    gap: .1em;
    margin: .8rem 0 1.7rem;
    color: #f06b00;
    font-family: Verdana, Geneva, sans-serif;
    font-size: clamp(2rem, 4.25vw, 3rem);
    font-weight: 400;
    letter-spacing: .21em;
    line-height: 1.35;
    text-align: center;
}

.legacy-home-title span:first-child {
    letter-spacing: .32em;
}

.legacy-home-panel > p,
.legacy-home-panel > ul {
    max-width: 1000px;
    margin-right: auto;
    margin-left: auto;
}

.legacy-specifier-image {
    width: min(700px, 100%);
    height: auto;
    margin: 1.35rem auto 1.8rem;
}

.legacy-feature-list {
    padding-left: 2rem;
    font-style: italic;
}

.legacy-feature-list li + li {
    margin-top: .25rem;
}

.legacy-home-gallery {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 1.15rem;
    width: min(850px, 100%);
    margin: 2rem auto;
    align-items: center;
}

.legacy-home-gallery img {
    width: 100%;
    height: 230px;
    border: 1px solid #888;
    object-fit: contain;
    background: #fff;
}

.legacy-home-panel h2 {
    max-width: 1000px;
    margin: 2rem auto .55rem;
    color: #777;
    font-family: Helvetica, Arial, sans-serif;
    font-size: .85rem;
    font-weight: 700;
    text-decoration: underline;
    text-transform: uppercase;
}

.legacy-home-contact {
    padding-top: 1.5rem;
    text-align: center;
}

.legacy-home-contact a {
    color: #573a2b;
    font-weight: 700;
}

.home-hero h1,
.page-masthead h1,
.section-heading h2,
.project-grid h2,
.trust-section h2,
.contact-layout h2,
.not-found h1,
.content-section h2,
.faq-group-heading h2,
.document-group h2,
.video-card h2,
.policy-copy h2,
.aside-card h2,
.card-body > strong,
.download-card strong {
    font-family: var(--sans);
    letter-spacing: normal;
}

.section-heading h2,
.project-grid h2,
.trust-section h2,
.contact-layout h2 {
    color: #444;
    font-size: clamp(2rem, 3.6vw, 3rem);
    font-weight: 300;
    line-height: 1.2;
}

.eyebrow,
.text-link,
.card-body i,
.download-card i {
    color: var(--orange-dark);
}

.button-primary {
    color: #fff;
    background: #617175;
}

.button-primary:hover,
.button-primary:focus-visible {
    background: #46575c;
}

.feature-band {
    color: #555;
    background: #f7f7f7;
}

.feature-grid article {
    border-color: #ddd;
}

.feature-grid article:last-child {
    border-color: #ddd;
}

.feature-number {
    color: var(--orange-dark);
    font-family: var(--sans);
    font-weight: 300;
}

.feature-grid h2 {
    color: #444;
    font-family: var(--sans);
    font-weight: 400;
}

.feature-grid p {
    color: var(--muted);
}

.page-masthead {
    padding: 195px 0 0;
    color: #616161;
    background: #fafafa;
}

.masthead-grid {
    padding: clamp(1.7rem, 4vw, 2.8rem);
    border-radius: 5px;
    color: #616161;
    background: #fff;
    box-shadow: 0 0 1px rgba(0, 0, 0, .18);
}

.page-masthead .eyebrow {
    color: var(--orange-dark);
}

.page-masthead h1 {
    color: #444;
    font-size: clamp(2rem, 4.2vw, 3.25rem);
    font-weight: 300;
    line-height: 1.2;
}

.page-masthead p:last-child {
    color: var(--muted);
}

.page-hero {
    margin-top: 30px;
    border-radius: 5px;
    box-shadow: 0 0 1px rgba(0, 0, 0, .18);
}

.product-card,
.download-card,
.video-card,
.contact-form-card {
    border-radius: 4px;
}

.site-footer {
    color: #555;
    background: #eee;
}

.footer-base {
    display: flex;
    min-height: 48px;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    padding-block: .55rem;
    border: 0;
    font-size: .72rem;
}

.footer-base nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
}

.footer-base a {
    padding: 0 .65rem;
    border-left: 1px solid #ccc;
    color: #555;
    text-decoration: none;
}

.footer-base a:hover,
.footer-base a:focus-visible {
    color: #222;
    text-decoration: underline;
}

@media (max-width: 980px) {
    .site-header,
    .has-review-bar .site-header {
        position: relative;
        top: auto;
        background: var(--orange);
    }

    .brand-row {
        display: grid;
        grid-template-columns: 1fr auto;
        min-height: 88px;
        padding: 0;
        border-radius: 0;
    }

    .brand,
    .brand img {
        width: min(285px, 68vw);
        height: auto;
    }

    .nav-toggle {
        border-color: #46575c;
        background: #46575c;
    }

    .nav-wrap {
        position: static;
        width: 100%;
        min-height: 0;
        padding: 0;
        border: 0;
        border-radius: 0;
        box-shadow: 0 12px 30px rgba(31, 40, 45, .14);
    }

    .nav-wrap::after {
        display: none;
    }

    .site-nav,
    .nav-list {
        min-height: 0;
    }

    .nav-label > a {
        min-height: 52px;
        padding: .7rem 4rem .7rem 1.5rem;
        border-radius: 0;
        font-size: .75rem;
    }

    .home-hero {
        min-height: min(400px, 58vw);
    }

    .page-masthead {
        padding-top: 3.5rem;
    }

    .footer-base {
        align-items: flex-start;
    }
}

@media (max-width: 720px) {
    .home-hero {
        min-height: 270px;
    }

    .home-statement {
        padding-block: 2.25rem;
    }

    .home-statement h1 {
        font-size: 1.75rem;
        letter-spacing: .1em;
    }

    .home-statement h1 span {
        letter-spacing: .35em;
    }

    .legacy-home-main {
        padding-top: 0;
    }

    .legacy-home-panel {
        padding: 1.5rem 0;
        font-size: .9rem;
    }

    .legacy-home-title {
        gap: .25rem;
        font-size: clamp(1.5rem, 7vw, 2.2rem);
        letter-spacing: .09em;
    }

    .legacy-home-title span:first-child {
        letter-spacing: .2em;
    }

    .legacy-home-gallery {
        grid-template-columns: 1fr;
        width: min(330px, 100%);
    }

    .legacy-home-gallery img {
        height: auto;
        max-height: 285px;
    }

    .feature-grid article {
        border-color: #ddd;
    }

    .footer-base,
    .footer-base nav {
        flex-direction: column;
        align-items: flex-start;
        gap: .55rem;
    }

    .footer-base nav {
        display: grid;
        grid-template-columns: repeat(2, auto);
    }

    .footer-base a {
        padding: 0 .8rem 0 0;
        border: 0;
    }
}

@media print {
    .review-bar,
    .site-header,
    .site-footer,
    .button,
    .faq-tools {
        display: none !important;
    }

    body {
        color: #000;
    }

    .page-masthead {
        padding: 1rem 0;
        color: #000;
        background: none;
    }

    .faq-item {
        break-inside: avoid;
    }

    .faq-item .faq-answer {
        display: block;
    }
}