/* Thermasheet — site styles. Colours from the logo, see plan doc "Design and brand". */
:root {
  --blue: #42B1DC;        /* logo blue: accents only, never body text on white */
  --blue-deep: #1A7DA8;   /* links, buttons, step numbers (4.6:1 on white) */
  --blue-darker: #135E7F;
  --charcoal: #2E373C;    /* logo grey: headings, body, header/footer */
  --charcoal-dark: #242B2F;
  --slate: #5F6B72;
  --text-soft: #3E484E;
  --ice: #EAF6FB;
  --grey: #F3F5F6;
  --line: #E3E8EB;
  --line-strong: #D5DDE1;
  --warn-bg: #FFF6E5;
  --warn-text: #4A3A12;
  --white: #FFFFFF;
  --radius: 12px;
  --font-head: 'Barlow', system-ui, sans-serif;
  --font-body: 'Source Sans 3', system-ui, sans-serif;
  --container: 1200px;
  --gutter: 24px;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font-body); font-size: 18px; line-height: 1.6; color: var(--charcoal); background: var(--white); }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-deep); text-decoration: none; }
a:hover { color: var(--blue-darker); text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-head); line-height: 1.1; margin: 0 0 .5em; font-weight: 700; }
h1 { font-size: clamp(34px, 4.5vw, 56px); }
h2 { font-size: clamp(26px, 3vw, 36px); }
h3 { font-size: 22px; }
p { margin: 0 0 1em; }
.visually-hidden { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip-link { position: absolute; left: -9999px; top: 8px; background: var(--white); padding: 8px 12px; z-index: 100; }
.skip-link:focus { left: 8px; }
:focus-visible { outline: 3px solid var(--blue); outline-offset: 2px; }

.container { width: 100%; max-width: calc(var(--container) + var(--gutter) * 2); margin: 0 auto; padding: 0 var(--gutter); }
.narrow { max-width: calc(820px + var(--gutter) * 2); }
.section { padding: 88px 0; }
.section--tight { padding: 48px 0; }
.section--ice { background: var(--ice); }
.section--grey { background: var(--grey); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 24px; margin-bottom: 36px; }
.section-head h2 { margin: 0; }
.eyebrow { font-family: var(--font-head); font-weight: 600; font-size: 14px; letter-spacing: .14em; text-transform: uppercase; color: var(--blue-deep); margin: 0 0 10px; }
.eyebrow--light { color: var(--blue); }
.lead { font-size: 19px; color: var(--text-soft); }
.link-arrow { font-weight: 700; }
.note { color: var(--slate); font-size: 16px; margin-top: 12px; }
.mono { font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 15px; }
.icon { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; flex-shrink: 0; }

/* Buttons */
.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 22px; border-radius: 8px; font-family: var(--font-body); font-weight: 700; font-size: 16px; border: 2px solid transparent; cursor: pointer; text-decoration: none !important; line-height: 1; }
.btn--sm { min-height: 44px; padding: 0 16px; font-size: 15px; }
.btn--primary { background: var(--blue-deep); color: var(--white); }
.btn--primary:hover { background: var(--blue-darker); color: var(--white); }
.btn--accent { background: var(--blue); color: #1C2327; }
.btn--accent:hover { background: #68C2E5; color: #1C2327; }
.btn--outline { border-color: var(--blue-deep); color: var(--blue-deep); background: transparent; }
.btn--outline-light { border-color: var(--white); color: var(--white); background: transparent; }
.btn--outline-light:hover { background: rgba(255,255,255,.1); color: var(--white); }
.btn--white { background: var(--white); color: var(--blue-darker); }
.btn--light { background: var(--white); color: var(--charcoal); border: 1px solid #9DB9C6; }
.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }
.icon-btn { width: 44px; height: 44px; border-radius: 8px; border: 1px solid var(--line-strong); background: var(--white); color: var(--charcoal); display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }
.icon-btn--dark { background: var(--charcoal); color: var(--white); border-color: var(--charcoal); }

/* Header */
.topbar { background: var(--charcoal); color: var(--white); font-size: 14px; }
.topbar a { color: var(--white); }
.topbar__inner { display: flex; justify-content: space-between; align-items: center; min-height: 40px; gap: 16px; }
.topbar__right { color: #BFD9E4; }
.site-header { border-bottom: 1px solid var(--line); background: var(--white); position: sticky; top: 0; z-index: 50; }
.site-header__inner { display: flex; align-items: center; justify-content: space-between; min-height: 92px; gap: 24px; }
.site-header__logo img { height: 60px; width: auto; }
.site-header__actions { display: flex; align-items: center; gap: 12px; }
.site-header__menu { display: none; }
.site-nav ul { list-style: none; display: flex; gap: 28px; margin: 0; padding: 0; }
.site-nav a { font-family: var(--font-head); font-weight: 600; font-size: 16px; color: var(--charcoal); padding: 6px 0; border-bottom: 3px solid transparent; }
.site-nav a:hover { color: var(--blue-deep); text-decoration: none; }
.site-nav a.is-active { color: var(--blue-deep); border-bottom-color: var(--blue); }

/* Hero */
.hero { display: grid; grid-template-columns: 1fr 1fr; background: var(--charcoal); min-height: 600px; }
.hero__text { padding: 88px 64px 64px max(var(--gutter), calc((100vw - var(--container)) / 2)); display: flex; flex-direction: column; justify-content: center; color: var(--white); }
.hero__title { font-size: clamp(44px, 6vw, 76px); line-height: .98; text-transform: uppercase; letter-spacing: -.01em; }
.hero__title span { color: var(--blue); }
.hero__lead { font-size: 20px; color: #D6DEE2; max-width: 520px; }
.hero__media img { width: 100%; height: 100%; object-fit: cover; }

/* Benefits */
.benefits { background: var(--grey); padding: 44px 0; }
.benefits__grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 24px; }
.benefit { display: flex; flex-direction: column; align-items: center; text-align: center; gap: 8px; }
.benefit strong { font-family: var(--font-head); font-size: 16px; }
.benefit span:last-child { font-size: 14px; color: var(--slate); line-height: 1.4; }
.benefit__icon { width: 64px; height: 64px; border-radius: 50%; background: var(--white); border: 2px solid var(--blue); display: flex; align-items: center; justify-content: center; color: var(--blue-deep); }
.benefit__icon .icon { width: 30px; height: 30px; stroke-width: 1.8; }

/* Cards */
.card-grid { display: grid; gap: 24px; }
.card-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.card-grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.card { display: flex; flex-direction: column; border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; color: var(--charcoal); background: var(--white); transition: box-shadow .15s, transform .15s; }
.card:hover { text-decoration: none; color: var(--charcoal); box-shadow: 0 10px 28px rgba(46,55,60,.10); transform: translateY(-2px); }
.card__media { display: block; aspect-ratio: 4 / 3; background: var(--grey); }
.card__media img { width: 100%; height: 100%; object-fit: cover; }
.card__body { display: flex; flex-direction: column; gap: 8px; padding: 22px; }
.card__title { font-family: var(--font-head); font-size: 22px; line-height: 1.15; }
.card__text { font-size: 16px; color: var(--slate); line-height: 1.5; }
.card__note { font-size: 14px; font-weight: 600; color: var(--blue-deep); }
.card--text .card__body { padding: 26px; }
.photo-card { position: relative; display: block; aspect-ratio: 3 / 4; max-height: 420px; border-radius: var(--radius); overflow: hidden; background: var(--charcoal); color: var(--white); }
.photo-card img { width: 100%; height: 100%; object-fit: cover; }
.photo-card__caption { position: absolute; inset: auto 0 0 0; padding: 60px 22px 22px; background: linear-gradient(to top, rgba(28,35,39,.92), rgba(28,35,39,0)); display: flex; flex-direction: column; gap: 4px; }
.photo-card__caption strong { font-family: var(--font-head); font-size: 22px; }
.photo-card__caption span { font-size: 15px; color: #D6DEE2; line-height: 1.4; }
.photo-card:hover { color: var(--white); text-decoration: none; }

/* Installers band */
.installers { display: grid; grid-template-columns: 4fr 8fr; gap: 40px; }
.installers__intro h2 { font-size: clamp(30px, 3.4vw, 44px); }
.manual-card { display: flex; gap: 16px; align-items: center; padding: 20px; background: var(--white); border-radius: var(--radius); color: var(--charcoal); margin-top: 16px; }
.manual-card:hover { text-decoration: none; color: var(--charcoal); box-shadow: 0 6px 18px rgba(46,55,60,.08); }
.manual-card--wide { border: 1px solid var(--line); margin: 0 0 32px; max-width: 640px; }
.manual-card__pdf { width: 52px; height: 64px; border-radius: 6px; background: var(--charcoal); color: var(--blue); font-family: var(--font-head); font-weight: 700; font-size: 13px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.manual-card__text { display: flex; flex-direction: column; flex-grow: 1; font-size: 14px; color: var(--slate); line-height: 1.4; }
.manual-card__text strong { font-size: 16px; color: var(--charcoal); }
.manual-card__action { font-weight: 700; color: var(--blue-deep); }
.guide-tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
.guide-tiles--page { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.guide-tile { display: flex; gap: 16px; align-items: flex-start; padding: 22px; background: var(--white); border-radius: var(--radius); color: var(--charcoal); border: 1px solid var(--white); }
.section:not(.section--ice) .guide-tile { border-color: var(--line); }
.guide-tile:hover { text-decoration: none; color: var(--charcoal); border-color: var(--blue); }
.guide-tile > span:last-child { display: flex; flex-direction: column; gap: 4px; }
.guide-tile strong { font-family: var(--font-head); font-size: 20px; line-height: 1.2; }
.guide-tile > span:last-child > span { font-size: 15px; color: var(--slate); line-height: 1.45; }
.guide-tile--all { grid-column: 1 / -1; justify-content: center; border: 2px solid var(--blue-deep); font-weight: 700; color: var(--blue-deep); background: transparent; }
.num-badge { width: 44px; height: 44px; flex-shrink: 0; border-radius: 8px; background: var(--blue-deep); color: var(--white); font-family: var(--font-head); font-weight: 700; font-size: 20px; display: inline-flex; align-items: center; justify-content: center; }
.num-badge--sm { width: 40px; height: 40px; font-size: 18px; }
.num-badge--lg { width: 84px; height: 84px; font-size: 40px; border-radius: 12px; }

/* Stats */
.stats { background: var(--charcoal); color: var(--white); padding: 64px 0; }
.stats__grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 32px; }
.stats strong { display: block; font-family: var(--font-head); font-size: clamp(34px, 4vw, 48px); color: var(--blue); line-height: 1.1; }
.stats span { font-size: 16px; color: #D6DEE2; }

/* Split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.split__image { width: 100%; border-radius: var(--radius); object-fit: cover; }
.chips { display: flex; flex-wrap: wrap; gap: 10px; margin: 8px 0 16px; }
.chip { padding: 6px 12px; border-radius: 20px; background: var(--ice); color: var(--blue-darker); font-size: 14px; font-weight: 600; }
.chip--white { background: var(--white); }

/* CTA band */
.cta-band { margin: 0 0 96px; padding: 48px 56px; border-radius: 16px; background: var(--blue-deep); color: var(--white); display: flex; justify-content: space-between; align-items: center; gap: 32px; }
.cta-band h2 { margin: 0 0 8px; font-size: clamp(26px, 3vw, 36px); }
.cta-band p { margin: 0; color: #E4F3FA; }
.page-blocks .cta-band { margin: 32px 0; }

/* Page header & breadcrumb */
.page-header { background: var(--ice); padding: 40px 0 44px; }
.page-header h1 { margin-bottom: 12px; }
.page-header .lead { max-width: 760px; margin: 0; }
.breadcrumb { font-size: 15px; color: var(--slate); margin-bottom: 16px; }
.page-banner { width: 100%; border-radius: var(--radius); margin-top: 32px; aspect-ratio: 35 / 12; object-fit: cover; }

/* Product */
.product-hero { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.product-hero__main { border-radius: 16px; overflow: hidden; background: var(--grey); aspect-ratio: 9 / 7; }
.product-hero__main img { width: 100%; height: 100%; object-fit: cover; }
.product-hero__thumbs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin-top: 12px; }
.product-hero__thumbs img { border-radius: 8px; aspect-ratio: 4 / 3; object-fit: cover; width: 100%; }
.ticks { list-style: none; padding: 0; margin: 0 0 20px; display: flex; flex-direction: column; gap: 10px; }
.ticks li { display: flex; gap: 12px; align-items: flex-start; }
.ticks .icon { color: var(--blue-deep); margin-top: 4px; stroke-width: 2.4; }
.spec-tiles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-bottom: 24px; }
.spec-tile { padding: 16px; border-radius: 10px; background: var(--grey); display: flex; flex-direction: column; }
.spec-tile strong { font-family: var(--font-head); font-size: 26px; line-height: 1.2; }
.spec-tile span { font-size: 14px; color: var(--slate); }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; }
.stack { display: flex; flex-direction: column; gap: 12px; }
.list-link { display: flex; gap: 16px; align-items: center; padding: 16px 20px; border: 1px solid var(--line); border-radius: var(--radius); color: var(--charcoal); }
.list-link strong { flex-grow: 1; font-size: 18px; }
.list-link span:last-child { color: var(--blue-deep); font-size: 20px; }
.list-link:hover { text-decoration: none; border-color: var(--blue); color: var(--charcoal); }

/* Tables */
.table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; border: 1px solid var(--line-strong); border-radius: 10px; background: var(--white); }
.data-table { width: 100%; border-collapse: collapse; font-size: 16px; min-width: 480px; }
.data-table thead th { background: var(--charcoal); color: var(--white); font-family: var(--font-head); font-weight: 600; text-align: left; padding: 13px 18px; }
.data-table td, .data-table tbody th { padding: 12px 18px; text-align: left; vertical-align: top; }
.data-table tbody th { font-weight: 700; }
.data-table tbody tr:nth-child(even) { background: var(--grey); }

/* Downloads */
.download-list { display: flex; flex-direction: column; gap: 12px; }
.download { display: flex; gap: 16px; align-items: center; padding: 16px 20px; border: 1px solid var(--line); border-radius: var(--radius); color: var(--charcoal); background: var(--white); }
.download:hover { text-decoration: none; border-color: var(--blue); color: var(--charcoal); }
.download__type { width: 40px; height: 48px; border-radius: 4px; background: var(--charcoal); color: var(--blue); font-family: var(--font-head); font-weight: 700; font-size: 11px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.download__name { flex-grow: 1; font-weight: 600; }
.download .icon { color: var(--blue-deep); }

/* Guide page */
.guide-header { background: var(--ice); padding: 40px 0 44px; }
.guide-header__row { display: flex; justify-content: space-between; align-items: flex-end; gap: 32px; margin-bottom: 18px; }
.guide-header__title { display: flex; gap: 24px; align-items: center; }
.guide-header h1 { margin: 0 0 6px; font-size: clamp(32px, 4vw, 52px); }
.guide-header .lead { margin: 0; }
.guide-layout { display: grid; grid-template-columns: 280px minmax(0, 1fr); gap: 64px; align-items: start; padding-top: 56px; padding-bottom: 88px; }
.guide-nav { border: 1px solid var(--line); border-radius: var(--radius); padding: 20px; position: sticky; top: 112px; }
.guide-nav__label { font-family: var(--font-head); font-weight: 700; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; color: var(--slate); margin: 0 10px 10px; }
.guide-nav ul { list-style: none; margin: 0; padding: 0; }
.guide-nav li a { display: block; padding: 9px 10px; border-radius: 8px; color: var(--charcoal); font-size: 15px; line-height: 1.35; }
.guide-nav li a span { color: var(--slate); font-weight: 600; margin-right: 6px; }
.guide-nav li a:hover { background: var(--grey); text-decoration: none; }
.guide-nav li a.is-active { background: var(--ice); color: var(--blue-darker); font-weight: 700; }
.guide-nav li a.is-active span { color: inherit; }
.help-card { margin-top: 14px; padding: 16px; border-radius: 10px; background: var(--charcoal); color: #C9D3D8; display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
.help-card strong { font-family: var(--font-head); font-size: 17px; color: var(--white); }
.help-card a { color: var(--blue); font-weight: 700; font-size: 18px; }
.guide-body { display: flex; flex-direction: column; gap: 44px; min-width: 0; }
.guide-body h2 { font-size: 30px; }
.info-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.info-box { padding: 24px; border-radius: var(--radius); }
.info-box--ice { background: var(--ice); }
.info-box--grey { background: var(--grey); }
.info-box__title { display: flex; gap: 10px; align-items: center; font-family: var(--font-head); font-weight: 700; font-size: 18px; margin: 0 0 8px; }
.info-box--ice .info-box__title .icon { color: var(--blue-deep); }
.info-box ul { margin: 0; padding-left: 20px; font-size: 16px; line-height: 1.7; }
.steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; }
.step { display: grid; grid-template-columns: 56px minmax(0, 1fr) 320px; gap: 24px; align-items: start; padding: 28px 0; border-bottom: 1px solid var(--line); }
.step:first-child { padding-top: 8px; }
.step:last-child { border-bottom: 0; }
.step .num-badge { width: 56px; height: 56px; font-size: 28px; border-radius: 10px; }
.step h3 { letter-spacing: .02em; text-transform: uppercase; margin-bottom: 8px; }
.step p { margin: 0; font-size: 17px; color: var(--text-soft); }
.step__figure { margin: 0; }
.step__figure img { width: 100%; aspect-ratio: 32 / 22; object-fit: cover; border-radius: 8px; }
.step__figure figcaption { font-size: 13px; color: var(--slate); margin-top: 6px; }
.mini-cards { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
.mini-card { display: flex; gap: 14px; align-items: center; padding: 16px; border: 1px solid var(--line); border-radius: var(--radius); color: var(--charcoal); }
.mini-card img, .mini-card__ph { width: 64px; height: 64px; border-radius: 8px; object-fit: cover; background: var(--grey); flex-shrink: 0; }
.mini-card > span:last-child { display: flex; flex-direction: column; font-size: 14px; color: var(--slate); }
.mini-card strong { font-size: 16px; color: var(--charcoal); }
.mini-card:hover { text-decoration: none; border-color: var(--blue); }
.prev-next { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.prev-next a { padding: 20px 22px; border: 1px solid var(--line-strong); border-radius: var(--radius); display: flex; flex-direction: column; gap: 4px; color: var(--charcoal); }
.prev-next a span { font-size: 14px; color: var(--slate); }
.prev-next a strong { font-family: var(--font-head); font-size: 20px; }
.prev-next__next { align-items: flex-end; text-align: right; }
.prev-next a:hover { text-decoration: none; border-color: var(--blue); }
.mobile-bar { display: none; }

/* Blocks */
.page-blocks { padding-bottom: 64px; display: flex; flex-direction: column; gap: 40px; }
.umb-block-list { display: flex; flex-direction: column; gap: 32px; }
.block--image-text { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.block--image-left .block__image { order: -1; }
.block__image { width: 100%; border-radius: var(--radius); }
.callout { display: flex; gap: 14px; align-items: flex-start; padding: 20px 22px; border-radius: var(--radius); }
.callout .icon { width: 24px; height: 24px; margin-top: 2px; }
.callout p:last-child, .callout .rte > :last-child { margin-bottom: 0; }
.callout__title { display: block; font-family: var(--font-head); font-size: 18px; margin-bottom: 4px; }
.callout--info { background: var(--ice); }
.callout--info .icon { color: var(--blue-deep); }
.callout--warning { background: var(--warn-bg); color: var(--warn-text); }
.callout--warning .icon { color: #8A5A00; }
.block--table .callout { margin-top: 16px; }
.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 16px; }
.gallery img { width: 100%; aspect-ratio: 4 / 3; object-fit: cover; border-radius: 8px; }
.faq { border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); }
.faq + .faq { margin-top: -20px; }
.faq summary { cursor: pointer; padding: 20px 24px; font-family: var(--font-head); font-weight: 700; font-size: 20px; list-style: none; display: flex; justify-content: space-between; gap: 16px; }
.faq summary::after { content: '+'; color: var(--blue-deep); font-size: 26px; line-height: 1; }
.faq[open] summary::after { content: '−'; }
.faq[open] { background: var(--ice); }
.faq .rte { padding: 0 24px 20px; color: var(--text-soft); }
.rte > :last-child { margin-bottom: 0; }
.rte ul, .rte ol { padding-left: 22px; }

/* Forms */
.form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px 24px; margin-bottom: 24px; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field--wide { grid-column: 1 / -1; }
.field label { font-weight: 600; font-size: 16px; }
.field input, .field select, .field textarea { font: inherit; font-size: 17px; padding: 12px 14px; border: 1px solid #B9C6CC; border-radius: 8px; background: var(--white); color: var(--charcoal); }
.field input:focus, .field select:focus, .field textarea:focus { border-color: var(--blue-deep); outline: 3px solid rgba(66,177,220,.35); }
.field--hp { position: absolute; left: -9999px; }
.form__error { color: #B42318; font-size: 15px; }

/* Footer */
.site-footer { background: var(--charcoal-dark); color: #C9D3D8; font-size: 15px; padding: 64px 0 32px; }
.site-footer a { color: #C9D3D8; }
.site-footer a:hover { color: var(--white); }
.site-footer__grid { display: grid; grid-template-columns: 2fr repeat(4, 1fr); gap: 32px; }
.site-footer__col { display: flex; flex-direction: column; gap: 8px; }
.site-footer__heading { font-family: var(--font-head); font-weight: 700; font-size: 16px; color: var(--white) !important; margin-bottom: 4px; }
.wordmark { font-family: var(--font-head); font-weight: 700; font-size: 28px; letter-spacing: .02em; margin-bottom: 8px; }
.wordmark__a { color: var(--blue); }
.wordmark__b { color: var(--white); }
.site-footer__legal { border-top: 1px solid #3A454B; margin-top: 48px; padding-top: 24px; font-size: 14px; color: #9AA7AE; }

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .site-nav ul { gap: 18px; }
  .benefits__grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .card-grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .installers { grid-template-columns: 1fr; }
  .guide-tiles--page { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step { grid-template-columns: 56px minmax(0, 1fr); }
  .step__figure { grid-column: 2; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  body { font-size: 17px; }
  .site-header__inner { min-height: 68px; }
  .site-header__logo img { height: 42px; }
  .site-header__menu { display: inline-flex; }
  .site-header__actions .btn { display: none; }
  .site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 12px 24px rgba(46,55,60,.1); }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; padding: 8px var(--gutter) 16px; }
  .site-nav a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav a.is-active { border-bottom-color: var(--line); }
  .topbar__right { display: none; }
  .hero { grid-template-columns: 1fr; min-height: 0; }
  .hero__text { padding: 48px var(--gutter); }
  .hero__media { max-height: 360px; overflow: hidden; }
  .section { padding: 56px 0; }
  .section-head { flex-direction: column; align-items: flex-start; }
  .card-grid--3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats__grid { grid-template-columns: 1fr 1fr; }
  .split, .product-hero, .two-col, .block--image-text { grid-template-columns: 1fr; gap: 32px; }
  .cta-band { flex-direction: column; align-items: flex-start; padding: 32px 24px; margin-bottom: 56px; }
  .guide-layout { grid-template-columns: 1fr; gap: 32px; padding-top: 24px; padding-bottom: 110px; }
  .guide-nav { display: none; }
  .guide-header__row { flex-direction: column; align-items: flex-start; }
  .guide-header__row .btn-row { display: none; }
  .guide-header__title { gap: 14px; }
  .num-badge--lg { width: 52px; height: 52px; font-size: 24px; border-radius: 10px; }
  .info-pair, .mini-cards, .prev-next { grid-template-columns: 1fr; }
  .step { grid-template-columns: 1fr; gap: 12px; }
  .step .num-badge { width: 40px; height: 40px; font-size: 20px; }
  .step__figure { grid-column: auto; }
  .mobile-bar { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; position: fixed; left: 0; right: 0; bottom: 0; padding: 12px 16px; background: var(--white); border-top: 1px solid var(--line-strong); box-shadow: 0 -4px 16px rgba(46,55,60,.08); z-index: 40; }
  .form__grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  :root { --gutter: 16px; }
  .benefits__grid { grid-template-columns: 1fr 1fr; }
  .card-grid--3, .card-grid--4, .guide-tiles, .guide-tiles--page { grid-template-columns: 1fr; }
  .spec-tiles { grid-template-columns: 1fr 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
}

/* ---------- Print (installation guides) ---------- */
@media print {
  .topbar, .site-header, .site-footer, .no-print, .mobile-bar { display: none !important; }
  body { font-size: 11pt; color: #000; }
  .guide-header { background: none; padding: 0 0 12pt; border-bottom: 2pt solid var(--blue); }
  .guide-layout { display: block; padding: 12pt 0 0; }
  .guide-body { gap: 16pt; }
  .step { grid-template-columns: 30pt 1fr 150pt; padding: 8pt 0; break-inside: avoid; }
  .num-badge { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .data-table thead th { -webkit-print-color-adjust: exact; print-color-adjust: exact; }
  .table-wrap { overflow: visible; border: 1pt solid #999; }
  a { color: #000; }
}

/* Header: keep labels on one line and switch to the menu button before the nav gets cramped */
.site-nav a, .btn { white-space: nowrap; }
@media (max-width: 1240px) {
  .site-header__inner { min-height: 72px; }
  .site-header__menu { display: inline-flex; }
  .site-nav { display: none; position: absolute; top: 100%; left: 0; right: 0; background: var(--white); border-bottom: 1px solid var(--line); box-shadow: 0 12px 24px rgba(46,55,60,.1); }
  .site-nav.is-open { display: block; }
  .site-nav ul { flex-direction: column; gap: 0; padding: 8px var(--gutter) 16px; }
  .site-nav a { display: block; padding: 12px 0; border-bottom: 1px solid var(--line); }
  .site-nav a.is-active { border-bottom-color: var(--line); }
}

/* Search */
.search-form { display: flex; gap: 12px; max-width: 720px; margin-top: 8px; }
.search-form input { flex: 1; font: inherit; font-size: 18px; padding: 12px 16px; border: 1px solid #B9C6CC; border-radius: 8px; min-width: 0; }
.search-form input:focus { border-color: var(--blue-deep); outline: 3px solid rgba(66,177,220,.35); }
.search-results { list-style: none; margin: 16px 0 0; padding: 0; display: flex; flex-direction: column; }
.search-results li { padding: 20px 0; border-bottom: 1px solid var(--line); }
.search-results a { font-family: var(--font-head); font-weight: 700; font-size: 22px; }
.search-results p { margin: 6px 0 0; color: var(--text-soft); font-size: 16px; }
.search-results__type { display: block; font-size: 13px; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; color: var(--slate); margin-bottom: 2px; }
.pager { display: flex; gap: 8px; margin-top: 24px; }
.pager a, .pager span { min-width: 44px; height: 44px; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--line-strong); border-radius: 8px; }
.pager span { background: var(--blue-deep); color: var(--white); border-color: var(--blue-deep); }
a.icon-btn:hover { text-decoration: none; border-color: var(--blue); }

/* Where to Buy */
.retailer-filters { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 16px; margin-bottom: 28px; }
.retailer-filters__types { display: flex; gap: 8px; flex-wrap: wrap; }
.chip-btn { min-height: 44px; padding: 0 18px; border-radius: 22px; border: 1px solid var(--line-strong); background: var(--white); font: inherit; font-weight: 600; font-size: 15px; color: var(--charcoal); cursor: pointer; }
.chip-btn.is-active { background: var(--blue-deep); border-color: var(--blue-deep); color: var(--white); }
.retailer-filters__state { display: flex; align-items: center; gap: 10px; font-weight: 600; font-size: 15px; }
.retailer-filters__state select { font: inherit; font-size: 16px; padding: 10px 12px; border: 1px solid #B9C6CC; border-radius: 8px; min-height: 44px; }
.retailer-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(340px, 1fr)); gap: 20px; }
.retailer { border: 1px solid var(--line); border-radius: var(--radius); padding: 22px; display: flex; flex-direction: column; gap: 12px; background: var(--white); }
.retailer[hidden] { display: none; }
.retailer__head { display: flex; gap: 14px; align-items: flex-start; }
.retailer__logo { width: 80px; height: 40px; object-fit: contain; flex-shrink: 0; }
.retailer__name { font-size: 22px; margin: 0 0 6px; }
.retailer__tags { display: flex; flex-wrap: wrap; gap: 6px; }
.tag { font-size: 13px; font-weight: 600; padding: 3px 10px; border-radius: 12px; background: var(--grey); color: var(--text-soft); }
.tag--instore, .tag--both { background: var(--ice); color: var(--blue-darker); }
.tag--online { background: #EEF0FF; color: #3B3F8F; }
.tag--open { background: #E6F4EA; color: #1E6B34; }
.tag--closed { background: #FDECEA; color: #9B2C1F; }
.retailer__address, .retailer__notes { margin: 0; font-size: 16px; color: var(--text-soft); line-height: 1.5; }
.retailer__hours summary { cursor: pointer; font-weight: 600; font-size: 16px; color: var(--blue-deep); }
.retailer__hours ul { list-style: none; margin: 8px 0 0; padding: 0; font-size: 15px; line-height: 1.7; }
.google-attribution { margin: 8px 0 0; font-size: 12px; color: #5E5E5E; }
.google-attribution__brand { font-family: Roboto, Arial, sans-serif; font-weight: 400; font-size: 12px; color: #5E5E5E; white-space: nowrap; }
.retailer__actions { display: flex; flex-wrap: wrap; gap: 8px; margin-top: auto; padding-top: 4px; }
@media (max-width: 600px) { .retailer-grid { grid-template-columns: 1fr; } }

/* ---------- Brand lockup (v2): icon + live-text wordmark ---------- */
.site-header__logo { display: none; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; color: var(--charcoal); text-decoration: none !important; }
.brand__mark { width: 64px; height: auto; flex-shrink: 0; }
.brand__text { display: flex; flex-direction: column; line-height: 1; }
.brand__name { font-family: var(--font-head); font-weight: 700; font-size: 30px; letter-spacing: .02em; }
.brand__name-a { color: var(--blue); }
.brand__name-b { color: var(--charcoal); }
.brand__tagline { font-family: var(--font-head); font-weight: 600; font-size: 11.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--charcoal); margin-top: 6px; white-space: nowrap; }
.site-nav ul { gap: 24px; }
.site-header__inner { min-height: 96px; }

.topbar__right { display: flex; align-items: center; gap: 20px; }
.topbar__supplier { color: #BFD9E4; }
.topbar__manual { display: inline-flex; align-items: center; gap: 6px; font-weight: 600; color: var(--white); }
.topbar__manual .icon { width: 16px; height: 16px; }
.topbar__manual:hover { color: var(--blue); }

@media (max-width: 1240px) {
  .site-header__inner { min-height: 80px; }
}
@media (max-width: 900px) {
  .topbar__right { display: flex; }
  .topbar__supplier { display: none; }
  .topbar__manual span { display: none; }
  .topbar__manual::after { content: 'Manual'; }
}
@media (max-width: 600px) {
  .brand__mark { width: 48px; }
  .brand__name { font-size: 24px; }
  .brand__tagline { font-size: 9.5px; letter-spacing: .04em; }
}

/* Small phones: drop the tagline so the menu button always fits */
@media (max-width: 480px) {
  .brand { gap: 10px; }
  .brand__mark { width: 44px; }
  .brand__name { font-size: 22px; }
  .brand__tagline { display: none; }
  .site-header__actions { gap: 8px; }
}

/* Lightbox */
a[data-lightbox] { cursor: zoom-in; display: block; }
.split__image-link { display: block; }
html.lightbox-open { overflow: hidden; }
.lightbox { width: 100vw; height: 100vh; max-width: none; max-height: none; margin: 0; padding: 0; border: 0; background: transparent; color: var(--white); }
.lightbox::backdrop { background: rgba(20, 25, 28, .92); }
.lightbox__figure { margin: 0; width: 100%; height: 100%; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; padding: 64px 72px; box-sizing: border-box; }
.lightbox__img { max-width: 100%; max-height: calc(100vh - 170px); object-fit: contain; border-radius: 6px; box-shadow: 0 10px 40px rgba(0,0,0,.4); background: #1C2327; }
.lightbox__caption { font-size: 16px; color: #D6DEE2; text-align: center; max-width: 900px; }
.lightbox__btn { position: fixed; width: 48px; height: 48px; border-radius: 50%; border: 0; background: rgba(255,255,255,.12); color: var(--white); font-size: 32px; line-height: 1; display: flex; align-items: center; justify-content: center; cursor: pointer; }
.lightbox__btn:hover { background: rgba(255,255,255,.25); }
.lightbox__btn[hidden] { display: none; }
.lightbox__close { top: 16px; right: 16px; }
.lightbox__prev { left: 16px; top: 50%; transform: translateY(-50%); }
.lightbox__next { right: 16px; top: 50%; transform: translateY(-50%); }
.lightbox__count { position: fixed; top: 26px; left: 50%; transform: translateX(-50%); font-size: 14px; color: #BFC9CE; }
@media (max-width: 600px) {
  .lightbox__figure { padding: 64px 12px 72px; }
  .lightbox__prev, .lightbox__next { top: auto; bottom: 16px; transform: none; }
}