/* Architectural materials edition. Shared behaviour lives in styles.css / app.js. */
:root {
  --ink: #272923; --ink-2: #454940; --paper: #f5f3ee; --surface: #fffefb;
  --surface-2: #eeebe4; --line: #d9d6ce; --muted: #64665e;
  --brand: #b65b32; --brand-dark: #914423; --acid: #e5d2b8;
  --blue: #d8ded6; --radius-lg: 4px; --radius-md: 4px; --radius-sm: 3px;
  --shadow: 0 12px 35px rgba(39,41,35,.06);
  --content: min(1320px, calc(100% - 72px));
  font-family: "Segoe UI", Arial, sans-serif;
}
body { line-height: 1.55; }
h1,h2,h3 { font-weight: 600; letter-spacing: -.045em; }
h2 { font-size: clamp(32px, 3.45vw, 48px); line-height: 1.12; }
.section { padding: 96px 0; }
.eyebrow { color: var(--brand-dark); font-size: 10px; font-weight: 650; letter-spacing: .13em; line-height: 1.6; }
.eyebrow::before { display: none; }
.section-heading { margin-bottom: 36px; align-items: end; }
.section-heading .eyebrow { color: var(--brand-dark); margin-bottom: 15px; }
.section-heading > p { font-size: 15px; line-height: 1.6; }
.button { border-radius: 2px; font-size: 14px; font-weight: 600; min-height: 50px; gap: 16px; padding: 14px 22px; letter-spacing: 0; box-shadow: none; }
.button:hover { transform: translateY(-2px); box-shadow: none; }
.button-primary { color: white; background: var(--brand); border-color: var(--brand); }
.button-primary:hover { background: var(--brand-dark); border-color: var(--brand-dark); }
.button-outline { color: var(--brand-dark); border: 1px solid var(--brand); background: transparent; }
.button-outline:hover { background: #efe3d6; }
.button-small { min-height: 42px; padding: 10px 15px; font-size: 13px; }
.button-acid { background: var(--acid); color: var(--ink); }
.button-soft { background: var(--surface-2); }
.quiet-link { display: inline-block; color: var(--muted); font-size: 13px; margin-top: 22px; text-decoration-thickness: 1px; }
.quiet-link:hover,.link-arrow:hover { color: var(--brand-dark); }
.link-arrow { font-size: 14px; font-weight: 550; text-decoration: underline; text-underline-offset: 5px; }
.link-arrow::after { content: ' ↗'; }
.service-bar { background: #ebe8e0; color: var(--muted); font-size: 11px; }
.service-bar .container { min-height: 30px; }
.service-links a:last-child { color: var(--ink); font-weight: 650; }
.service-links a:hover { color: var(--brand-dark); }
.site-header { background: var(--paper); }
.header-main { grid-template-columns: 270px minmax(190px,1fr) auto; gap: 38px; min-height: 91px; }
.brand { font-weight: 750; gap: 12px; flex-shrink: 0; }
.brand-copy { display: block; font-size: 20px; line-height: .98; letter-spacing: -.02em; text-transform: uppercase; }
.brand-copy small { display: block; font-size: 8px; font-weight: 500; letter-spacing: .12em; margin-top: 8px; color: var(--brand-dark); }
.strata-mark { width: 40px; height: 44px; flex: 0 0 40px; }
.header-search { width: 100%; max-width: 410px; justify-self: center; }
.search-control { border: 0; border-bottom: 1px solid var(--line); border-radius: 0; padding: 3px 0; background: transparent; }
.search-control:focus-within { box-shadow: none; }
.search-control input { font-size: 13px; }
.search-control button { background: transparent; color: var(--ink); padding-inline: 8px; font-size: 12px; border-radius: 0; }
.search-suggest { border-radius: 2px; }
.header-actions { gap: 16px; }
.request-chip { padding: 0; min-height: 44px; border-radius: 0; color: var(--ink); background: transparent; font-size: 12px; font-weight: 550; }
.request-count { background: var(--surface-2); border: 1px solid var(--line); min-width: 23px; height: 23px; border-radius: 2px; font-weight: 650; }
.nav-row { border-top-color: var(--line); }
.nav-row .container { min-height: 44px; justify-content: space-between; gap: 25px; }
.nav-row a { font-size: 12px; font-weight: 500; }
.catalog-nav { margin-right: 0; }
.nav-row a::after { height: 2px; bottom: -12px; }
.mobile-toggle { border-radius: 2px; background: transparent; }
.mobile-toggle::before,.mobile-toggle::after { display: none; }
.atelier-hero { display: grid; grid-template-columns: 48% 52%; max-width: 1800px; margin: auto; min-height: 595px; }
.atelier-copy { padding: 52px 30px 44px max(36px,calc((100vw - 1320px)/2)); align-self: center; }
.atelier-copy .eyebrow { margin-bottom: 26px; font-size: 10px; }
.atelier-copy h1 { font-size: clamp(40px,4.45vw,67px); line-height: 1.025; letter-spacing: -.047em; }
.atelier-copy h1 span { color: var(--brand-dark); }
.atelier-lead { color: var(--muted); font-size: 15px; line-height: 1.65; margin: 24px 0 28px; }
.hero-actions { gap: 12px; }
.atelier-photo { position: relative; margin: 0; min-width: 0; min-height: 100%; background: #99907c; overflow: hidden; }
.atelier-photo > img { width: 100%; height: 100%; position: absolute; object-fit: cover; object-position: 51% center; }
.atelier-photo figcaption { position: absolute; bottom: 0; left: 0; right: 0; display: flex; justify-content: space-between; gap: 18px; padding: 55px 28px 22px; color: #fff; font-size: 11px; background: linear-gradient(transparent,rgba(30,28,22,.58)); }
.atelier-photo figcaption span:last-child { opacity: .75; font-size: 10px; }
.project-facts { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.project-facts .container { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); }
.project-facts p { display: grid; grid-template-columns: 35px 1fr; column-gap: 14px; margin: 0; padding: 25px 30px; border-right: 1px solid var(--line); }
.project-facts p:first-child { padding-left: 0; }
.project-facts p:last-child { border-right: 0; }
.project-facts p > span { grid-row: span 2; color: var(--brand); font-size: 13px; padding-top: 2px; }
.project-facts strong { font-size: 13px; font-weight: 600; }
.project-facts small { font-size: 11px; color: var(--muted); margin-top: 4px; }
.chapter-grid { display: grid; grid-template-columns: minmax(230px,.7fr) minmax(0,2fr); gap: 56px; }
.chapter-intro h2 { font-size: clamp(31px,3.1vw,44px); margin: 10px 0 24px; }
.chapter-intro > p:not(.eyebrow) { font-size: 14px; color: var(--muted); max-width: 260px; margin-bottom: 28px; }
.chapter-footnote { display: block; font-size: 11px; color: var(--muted); border-top: 1px solid var(--line); padding-top: 20px; margin-top: 50px; max-width: 220px; }
.material-grid { display: grid; grid-template-columns: repeat(3,minmax(0,1fr)); gap: 35px 22px; }
.material-card { display: block; text-decoration: none; min-width: 0; }
.material-photo { position: relative; overflow: hidden; aspect-ratio: 1.25; background: var(--surface-2); }
.material-photo img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s cubic-bezier(.2,.65,.3,1); }
.material-card:hover img,.material-card:focus-visible img { transform: scale(1.055); }
.material-card h3 { margin: 16px 0 9px; font-size: 19px; line-height: 1.15; letter-spacing: -.025em; }
.material-card p { margin: 0; color: var(--muted); font-size: 12px; line-height: 1.65; }
.material-number { position: absolute; left: 12px; top: 10px; font-size: 10px; letter-spacing: .08em; background: var(--paper); padding: 3px 6px; }
.material-arrow { position: absolute; bottom: 10px; right: 10px; display: grid; place-items: center; width: 32px; height: 32px; color: var(--ink); background: var(--paper); transition: background .2s,color .2s; }
.material-card:hover .material-arrow { color: white; background: var(--brand); }
.task-section { background: var(--ink); color: var(--paper); }
.additional-materials { display: flex; justify-content: space-between; align-items: center; gap: 24px; border-top: 1px solid var(--line); padding-top: 30px; margin-top: 42px; }
.additional-materials .eyebrow { display: block; margin-bottom: 12px; }
.additional-materials h3 { font-size: 24px; letter-spacing: -.025em; margin-bottom: 8px; }
.additional-materials p { margin: 0; color: var(--muted); font-size: 13px; }
.additional-materials > div:last-child { display: flex; flex-wrap: wrap; gap: 12px 24px; }
.additional-materials a { color: var(--brand-dark); font-size: 13px; text-underline-offset: 4px; }
.finishing-aside img { display: block; width: 100%; height: auto; }
.article-toc { padding: 24px; margin: 0 0 32px; background: var(--paper); border: 1px solid var(--line); }
.article-toc ol { margin-bottom: 0; }
.prose section[id] { scroll-margin-top: 120px; }
.related-reading { margin-top: 32px; border-top: 1px solid var(--line); padding-top: 8px; }
.related-reading a,.article-toc a { text-underline-offset: 4px; }
@media (max-width:780px) { .additional-materials { align-items: flex-start; flex-direction: column; } }
.task-section .eyebrow { color: #dea987; }
.task-section .section-heading > p { color: #b5b8ae; }
.task-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.task-photo { margin: 0; position: sticky; top: 24px; background: #eeeee8; }
.task-photo img { width: 100%; aspect-ratio: 1.18; object-fit: cover; }
.task-photo figcaption { color: #bfc0b7; background: var(--ink); font-size: 10px; padding-top: 12px; }
.task-choices details { border-top: 1px solid #51534a; }
.task-choices details:last-of-type { border-bottom: 1px solid #51534a; }
.task-choices summary { display: flex; align-items: center; gap: 22px; padding: 23px 0; font-size: clamp(23px,2.1vw,30px); font-weight: 500; cursor: pointer; list-style: none; letter-spacing: -.025em; }
.task-choices summary::-webkit-details-marker { display: none; }
.choice-number { font-size: 11px; color: #b5b8ae; letter-spacing: .05em; }
.choice-sign { margin-left: auto; position: relative; width: 18px; height: 18px; }
.choice-sign::before,.choice-sign::after { content: ''; position: absolute; width: 16px; height: 1px; left: 1px; top: 9px; background: currentColor; transition: transform .25s; }
.choice-sign::after { transform: rotate(90deg); }
.task-choices [open] .choice-sign::after { transform: rotate(0); }
.task-choices [open] summary { color: #e0ad8d; }
.choice-body { padding: 0 0 25px 39px; animation: choice-in .25s ease-out; }
.choice-body h3 { font-size: 17px; letter-spacing: -.01em; margin-bottom: 12px; }
.choice-body p { color: #b5b8ae; font-size: 14px; line-height: 1.7; }
.choice-links { display: flex; flex-wrap: wrap; gap: 14px 24px; padding-top: 8px; }
.choice-links a { font-size: 12px; color: #f0d2bc; text-underline-offset: 5px; }
.task-other { display: inline-block; font-size: 12px; color: #b5b8ae; margin-top: 25px; }
@keyframes choice-in { from { opacity: .5; transform: translateY(-5px); } to { opacity: 1; transform: translateY(0); } }
.process-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 90px; align-items: stretch; }
.process-copy h2 { margin: 10px 0 24px; }
.process-lead { color: var(--muted); max-width: 450px; font-size: 14px; }
.process-list { padding: 0; margin: 30px 0; list-style: none; }
.process-list li { display: flex; gap: 25px; padding: 18px 0; border-top: 1px solid var(--line); }
.process-list li > span { color: var(--brand); font-size: 11px; }
.process-list h3 { font-size: 18px; margin: 0 0 8px; letter-spacing: -.02em; }
.process-list p { font-size: 13px; color: var(--muted); margin: 0; max-width: 355px; }
.process-photo { position: relative; margin: 0; overflow: hidden; min-height: 560px; background: #b9ad9a; }
.process-photo img { width: 100%; height: 100%; position: absolute; object-fit: cover; object-position: 43% center; }
.process-photo figcaption { position: absolute; bottom: 0; left: 0; right: 0; padding: 75px 30px 30px; background: linear-gradient(transparent,rgba(28,27,23,.85)); color: white; }
.process-photo strong { display: block; font-size: 30px; font-weight: 500; line-height: 1.15; letter-spacing: -.03em; }
.process-photo figcaption span { display: block; margin-top: 20px; font-size: 10px; letter-spacing: .04em; color: #e2ddd4; }
.home-faq { border-top: 1px solid var(--line); padding-top: 70px; }
.faq { gap: 0; }
.faq details { border: 0; border-top: 1px solid var(--line); border-radius: 0; background: transparent; }
.faq details:last-child { border-bottom: 1px solid var(--line); }
.faq summary { padding: 23px 0; font-size: 16px; font-weight: 550; }
.faq details div { padding: 0 0 25px; font-size: 14px; }
.contact-section { padding: 0 0 40px; }
.contact-band { display: grid; grid-template-columns: 1fr 1fr; gap: 70px; padding: 55px 60px; background: #e8e1d5; }
.contact-band h2 { font-size: clamp(34px,3.8vw,52px); }
.contact-band p:not(.eyebrow) { margin: 20px 0; color: var(--muted); font-size: 14px; }
.contact-phone { font-size: 21px; font-weight: 500; text-decoration: none; }
.contact-routes { display: grid; align-content: center; }
.contact-routes > a:not(.callback-link) { text-decoration: none; display: block; padding: 21px 0; border-top: 1px solid #c5beaf; }
.contact-routes .route-num { font-size: 9px; letter-spacing: .12em; color: var(--brand-dark); }
.contact-routes strong { display: flex; justify-content: space-between; gap: 15px; font-size: 21px; font-weight: 550; margin: 8px 0; }
.contact-routes strong span { transition: transform .2s; }
.contact-routes a:hover strong span { transform: translate(3px,-3px); }
.contact-routes small { font-size: 12px; color: var(--muted); }
.callback-link { font-size: 12px; padding-top: 16px; }
.site-footer { margin-top: 40px; color: #f4f1e8; }
.site-footer .brand-copy small { color: #c9a589; }
.footer-grid { gap: 40px; }
.footer-col h2 { font-size: 10px; font-weight: 550; letter-spacing: .12em; }
.footer-col a { font-size: 12px; color: #c0c2b9; }
.footer-brand p { color: #a8aca0; font-size: 12px; }
.footer-bottom { color: #a8aca0; font-size: 10px; }
.footer-credit { font-size: 10px; color: #d3c4b2; }
.breadcrumb { font-size: 11px; padding-top: 20px; }
.page-hero { border-bottom: 1px solid var(--line); margin-bottom: 30px; padding-bottom: 40px; }
.page-hero h1 { max-width: 1020px; font-size: clamp(35px,4.25vw,61px); line-height: 1.06; }
.page-hero .lead { font-size: 18px; max-width: 790px; color: var(--muted); }
.answer-box { font-size: 13px; border-radius: 0; background: #ebe7df; max-width: 850px; padding: 16px 20px; }
.answer-box p { margin: 0; }
.category-card { border-radius: 3px; }
.category-count,.pill,.visual-label,.solution-card .tag { border-radius: 2px; backdrop-filter: none; box-shadow: none; }
.product-card { border-radius: 3px; border-color: var(--line); }
.product-visual::before { display: none; }
.product-visual { background: var(--surface-2); }
.product-body { padding: 20px; }
.product-title { font-size: 21px; font-weight: 600; margin-block: 13px; }
.product-meta { font-size: 9px; letter-spacing: .05em; flex-wrap: wrap; }
.product-copy { font-size: 13px; }
.price { font-weight: 600; }
.price-line { align-items: start; flex-direction: column; gap: 4px; }
.pack { text-align: left; }
.stock { font-size: 11px; }
.product-grid { gap: 20px; }
.product-info h1 { font-size: clamp(34px,4vw,56px); }
.product-buy { box-shadow: none; border: 1px solid var(--line); border-radius: 3px; }
.product-page .product-visual,.gallery-thumb { border-radius: 3px; }
.product-kicker .pill { font-size: 10px; }
.visual-label { font-size: 8px; font-weight: 500; top: 9px; left: 9px; }
.field,.select,textarea,.qty,.icon-button { border-radius: 2px; border-color: #bdbeb5; }
.field,.select,textarea { font-size: 14px; }
.check input { flex: 0 0 20px; }
.check { line-height: 1.6; }
.notice { background: #f0e8da; border-color: #d6c6ae; border-radius: 3px; font-size: 13px; }
.step,.info-card,.aside-card,.empty-state { border-radius: 3px; }
.workflow { background: var(--surface-2); }
.step b { border-radius: 2px; font-weight: 500; }
.solution-card,.solution-card:nth-child(n) { border-radius: 3px; background: var(--ink); color: white; }
.solution-card:nth-child(2n) { background: #e7e0d2; color: var(--ink); }
.solution-card h3 { font-size: 33px; }
.cta-band { border-radius: 3px; }
.cta-band::after { display: none; }
.request-hero { padding-bottom: 40px; }
.request-layout { grid-template-columns: minmax(0,.95fr) minmax(0,1.05fr); gap: 65px; }
.request-list { padding: 0; border: 0; background: transparent; }
.request-list h2 { font-size: 25px; }
.request-list .catalog-toolbar { align-items: start; }
.request-list [data-request-summary] { font-size: 12px; margin-top: 12px; }
.request-list .empty-state { padding: 35px 25px; border: 1px dashed #b4b5ab; text-align: left; }
.empty-state h3 { font-size: 23px; margin-bottom: 15px; }
.empty-state p { font-size: 14px; }
.request-help { border-top: 1px solid var(--line); margin-top: 35px; padding-top: 30px; }
.request-help h2 { font-size: 27px; }
.request-help ol { padding-left: 20px; font-size: 14px; color: var(--muted); margin: 25px 0; }
.request-help li { margin-bottom: 14px; padding-left: 6px; }
.request-help > p { font-size: 14px; margin-top: 22px; }
.request-help > p.fineprint { font-size: 11px; max-width: 380px; }
.request-help a { font-size: 23px; text-decoration: none; color: var(--ink); }
.lead-form { padding: 32px; border: 1px solid var(--line); border-radius: 3px; background: var(--surface); scroll-margin-top: 25px; }
.lead-form h2 { font-size: 30px; margin-bottom: 25px; }
.mode-field { margin-bottom: 23px; }
.mode-field select { background: #f2eee6; border-color: #b4aa99; font-weight: 550; }
.mode-note { margin: 3px 0 0; min-height: 2em; }
.form-grid { gap: 18px 14px; }
.form-field label { font-size: 12px; font-weight: 600; }
.form-grid > p.fineprint { margin: -4px 0 0; font-size: 11px; }
.file-box { position: relative; border-radius: 3px; border-color: #b5ad9e; background: #f7f5ef; padding: 22px 18px; text-align: center; }
.file-box strong { display: block; font-size: 13px; font-weight: 500; margin-bottom: 14px; }
.file-box .upload-symbol { font-size: 27px; line-height: 1; color: var(--brand); display: block; margin-bottom: 10px; }
.file-box .fineprint { font-size: 10px; margin: 10px 0 0; overflow-wrap: anywhere; }
.file-box input { font-size: 11px; }
.file-box input::file-selector-button { background: #e6dfd1; color: var(--ink); border: 0; padding: 9px 12px; cursor: pointer; margin-right: 10px; font: inherit; }
.file-box.ready { border-style: solid; border-color: #748971; background: #edf1e9; }
.file-box.dragover { outline: 2px solid var(--brand); background: #ede2d5; }
.quiet-button { border: 0; background: transparent; color: var(--brand-dark); text-decoration: underline; font-size: 11px; padding: 10px; cursor: pointer; }
.form-status { border-radius: 3px; font-size: 14px; }
.lead-form .button[type=submit] { width: 100%; justify-content: space-between; }
.lead-form .form-field > .fineprint { font-size: 11px; }
.delivery-options { min-width: 0; margin: 6px 0 0; padding: 18px; border: 1px solid var(--line); background: #f5f3ee; }
.delivery-options legend { padding: 0 8px; font-size: 15px; font-weight: 600; letter-spacing: -.01em; }
.delivery-options > .fineprint { margin: 0 0 16px; font-size: 11px; }
.delivery-details { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1fr); gap: 18px 14px; min-width: 0; }
.delivery-options [hidden],.lead-form [data-contact-email-field][hidden],.lead-form [data-contact-handle-field][hidden],.lead-form [data-contact-method-field][hidden] { display: none; }
.contact-method-note { line-height: 1.6; }
.lead-form .form-field:has(#lead-phone:required) > label::after { content: ' *'; }
@media (max-width:600px) { .delivery-details { grid-template-columns: minmax(0,1fr); } .delivery-options { padding: 14px; } }
.premium-request:has([data-request-list-section][hidden]) .request-context { align-self: start; }
.premium-request:has([data-request-list-section][hidden]) .request-help { margin-top: 0; }
@media (min-width:1800px) { .atelier-copy { padding-left: 90px; } }
@media (max-width:1150px) {
  :root { --content: calc(100% - 48px); }
  .header-main { grid-template-columns: 240px minmax(150px,1fr) auto; gap: 20px; }
  .header-search { grid-column: auto; grid-row: auto; margin: 0; }
  .header-actions .button { padding-inline: 14px; }
  .atelier-copy { padding-left: 24px; padding-right: 20px; }
  .atelier-copy h1 { font-size: 4.8vw; }
  .hero-actions .button { font-size: 12px; padding: 13px 15px; }
  .chapter-grid { grid-template-columns: 230px minmax(0,1fr); gap: 30px; }
  .material-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
  .task-layout,.process-grid { gap: 40px; }
  .contact-band { padding: 40px; gap: 40px; }
  .request-layout { gap: 32px; }
  .lead-form { padding: 25px; }
  .product-grid { grid-template-columns: repeat(2,minmax(0,1fr)); }
}
@media (max-width:900px) and (min-width:781px) {
  .header-main { grid-template-columns: 230px 1fr; }
  .header-search { display: none; }
  .header-actions { justify-self: end; }
  .atelier-hero { min-height: 570px; }
  .atelier-copy h1 { font-size: 4.95vw; }
  .hero-actions { flex-direction: column; align-items: start; }
  .atelier-lead { font-size: 14px; }
  .desktop-break { display: none; }
  .process-photo { min-height: 650px; }
}
@media (max-width:780px) {
  :root { --content: calc(100% - 36px); }
  .section { padding: 58px 0; }
  .service-bar { display: block; }
  .service-bar .container { justify-content: center; min-height: 26px; font-size: 9px; }
  .service-links { display: none; }
  .header-main { min-height: 77px; grid-template-columns: 40px minmax(0,1fr) auto; gap: 12px; }
  .brand { justify-self: start; gap: 8px; }
  .brand-copy { font-size: 15px; white-space: normal; }
  .brand-copy small { font-size: 6px; letter-spacing: .07em; margin-top: 6px; }
  .strata-mark { width: 30px; height: 35px; flex-basis: 30px; }
  .request-chip { font-size: 0; gap: 5px; padding-inline: 0; }
  .request-chip::before { font-size: 11px; }
  .mobile-toggle { width: 36px; height: 40px; border: 0; }
  .nav-row { inset: 103px 0 64px; }
  .nav-row .container { justify-content: normal; gap: 0; }
  .nav-row a { font-size: 19px; }
  .atelier-hero { display: flex; flex-direction: column; min-height: 0; }
  .atelier-copy { padding: 39px 18px 35px; width: 100%; }
  .atelier-copy .eyebrow { font-size: 9px; margin-bottom: 20px; }
  .atelier-copy h1 { font-size: clamp(41px,8.8vw,64px); line-height: 1.03; }
  .atelier-copy .atelier-lead { font-size: 14px; margin: 23px 0; }
  .desktop-break { display: none; }
  .hero-actions { gap: 10px; flex-wrap: wrap; }
  .hero-actions .button { font-size: 12px; padding: 13px 17px; }
  .quiet-link { margin-top: 20px; font-size: 12px; }
  .atelier-photo { width: 100%; min-height: 0; aspect-ratio: 1.48; }
  .atelier-photo > img { object-fit: cover; }
  .atelier-photo figcaption { padding: 40px 18px 15px; font-size: 9px; }
  .atelier-photo figcaption span:last-child { font-size: 8px; }
  .project-facts .container { grid-template-columns: 1fr; }
  .project-facts p,.project-facts p:first-child { padding: 16px 0; border: 0; border-bottom: 1px solid var(--line); grid-template-columns: 26px 1fr; }
  .project-facts p:last-child { border-bottom: 0; }
  .project-facts strong { font-size: 12px; }
  .project-facts small { font-size: 10px; }
  .chapter-grid { grid-template-columns: minmax(0,1fr); gap: 30px; }
  .chapter-intro h2 { font-size: 36px; margin-block: 12px 18px; }
  .chapter-intro h2 br { display: none; }
  .chapter-intro h2 { max-width: 350px; }
  .chapter-intro > p:not(.eyebrow) { max-width: 330px; margin-bottom: 20px; }
  .chapter-footnote { display: none; }
  .material-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 26px 14px; }
  .material-card h3 { font-size: 17px; margin: 12px 0 7px; }
  .material-card p { font-size: 11px; line-height: 1.55; }
  .material-number { left: 7px; top: 7px; font-size: 8px; }
  .material-arrow { width: 25px; height: 25px; right: 7px; bottom: 7px; font-size: 14px; }
  .section-heading { margin-bottom: 30px; }
  .section-heading > p { margin-top: 16px; font-size: 13px; }
  .task-layout { grid-template-columns: minmax(0,1fr); gap: 27px; }
  .task-photo { position: relative; top: auto; }
  .task-photo img { aspect-ratio: 1.6; }
  .task-photo figcaption { font-size: 9px; }
  .task-choices summary { padding: 20px 0; font-size: 25px; }
  .choice-body { padding-left: 34px; }
  .choice-body p { font-size: 13px; }
  .process-grid { grid-template-columns: minmax(0,1fr); gap: 35px; }
  .process-photo { min-height: 0; aspect-ratio: 1; }
  .process-photo strong { font-size: 27px; }
  .process-photo figcaption { padding: 65px 22px 24px; }
  .process-photo figcaption span { font-size: 9px; }
  .home-faq h2 br { display: none; }
  .faq summary { font-size: 15px; padding-block: 20px; }
  .contact-section { padding: 0 0 25px; }
  .contact-band { grid-template-columns: minmax(0,1fr); padding: 30px 22px; gap: 30px; }
  .contact-routes strong { font-size: 20px; }
  .contact-band h2 { font-size: 37px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 35px 20px; padding-block: 45px; }
  .footer-brand { grid-column: 1/-1; }
  .footer-brand .brand-copy { font-size: 19px; }
  .footer-brand p { max-width: 300px; }
  .mobile-bar { box-shadow: none; background: var(--surface); }
  .mobile-bar a:last-child { color: var(--brand-dark); background: #f0e5d9; }
  .page-hero .lead { font-size: 16px; }
  .page-hero { margin-bottom: 15px; padding-block: 24px 30px; }
  .answer-box { margin-top: 20px; padding: 15px; font-size: 12px; }
  .request-layout { grid-template-columns: minmax(0,1fr); gap: 30px; }
  .lead-form { order: -1; padding: 25px 18px; }
  .lead-form h2 { font-size: 27px; }
  .request-context { display: flex; flex-direction: column; }
  .premium-request .request-hero h1 { font-size: 35px; }
  .premium-request .request-hero h1 br { display: none; }
  .request-layout:has([data-request-legacy-mode="true"]) .lead-form { order: 0; }
  .product-grid { grid-template-columns: repeat(2,minmax(0,1fr)); gap: 14px; }
  .product-title { font-size: 18px; }
  .product-body { padding: 15px; }
  .product-visual { min-height: 0; }
  .product-copy { font-size: 12px; }
  .product-meta { font-size: 8px; gap: 5px; }
  .card-action { grid-template-columns: 55px 1fr; }
  .card-action .button { padding-inline: 7px; font-size: 11px; }
  .card-action .qty { padding-inline: 3px; }
  .product-page .product-visual { min-height: 0; }
  .product-page { gap: 28px; }
  .buy-row { grid-template-columns: 80px minmax(0,1fr); }
  .product-info h1 { font-size: 37px; }
  .product-kicker { gap: 6px; }
}
@media (max-width:430px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .button { width: 100%; justify-content: space-between; min-height: 48px; font-size: 13px; }
  .atelier-copy h1 { font-size: clamp(37px,10.8vw,46px); }
  .atelier-copy .eyebrow { max-width: 270px; }
  .product-grid { grid-template-columns: minmax(0,1fr); }
  .product-title { font-size: 23px; }
  .product-copy { font-size: 13px; }
  .product-body { padding: 20px; }
  .card-action { grid-template-columns: 76px 1fr; }
  .card-action .button { font-size: 13px; }
  .request-item { grid-template-columns: minmax(0,1fr) 80px; }
  .header-main { gap: 7px; }
  .brand-copy { font-size: 13px; }
  .brand-copy small { font-size: 5.5px; }
  .strata-mark { width: 26px; flex-basis: 26px; }
  .request-chip::before { display: block; content: '≡'; font-size: 23px; line-height: 1; }
  .request-chip { justify-content: center; }
  .request-count { min-width: 27px; height: 27px; }
  .material-card h3 { font-size: 16px; }
  .material-card p { font-size: 10.5px; }
  .material-photo { aspect-ratio: 1.08; }
  .spec-table th,.spec-table td { font-size: 12px; padding: 12px 5px; }
}
@media (max-width:360px) {
  :root { --content: calc(100% - 28px); }
  .header-main { grid-template-columns: 34px minmax(0,1fr) 50px; gap: 5px; }
  .brand-copy { font-size: 12px; white-space: normal; }
  .brand-copy small { display: block; font-size: 5px; }
  .atelier-copy { padding-inline: 14px; }
  .atelier-copy h1 { font-size: 35px; }
  .atelier-lead { font-size: 13px; }
  .material-grid { column-gap: 12px; }
  .material-card h3 { font-size: 15px; }
  .contact-band { padding-inline: 18px; }
  .contact-routes strong { font-size: 18px; }
  .footer-grid { column-gap: 14px; }
}
/* Motion follows the material-layer motif. All content stays visible without JS. */
:root { --motion-ease: cubic-bezier(.22,1,.36,1); --motion-fast: 260ms; --motion-reveal: 760ms; }
.atelier-photo > img { transform: translateY(var(--hero-shift,0px)) scale(1.065); }
.material-explore-hint { position: absolute; z-index: 1; top: 22px; left: 24px; margin: 0; display: flex; align-items: center; gap: 12px; color: #fff; background: #272923c9; padding: 9px 13px; font-size: 10px; letter-spacing: .06em; pointer-events: none; }
.material-explore-hint > span { font-size: 20px; font-weight: 300; line-height: 1; }
.material-hotspot { position: static; }
.material-hotspot summary { position: absolute; z-index: 2; width: 44px; height: 44px; display: grid; place-items: center; list-style: none; cursor: pointer; transform: translate(-50%,-50%); }
.material-hotspot summary::-webkit-details-marker { display: none; }
.material-hotspot-1 summary { left: 94%; top: 38%; }
.material-hotspot-2 summary { left: 60%; top: 75%; }
.material-hotspot-3 summary { left: 35%; top: 40%; }
.hotspot-dot { position: relative; display: grid; place-items: center; width: 36px; height: 36px; border: 1px solid #fff; border-radius: 50%; background: #f5f3eef2; color: #272923; font-size: 11px; font-weight: 650; box-shadow: 0 2px 14px #181a1933; transition: transform var(--motion-fast) var(--motion-ease), background var(--motion-fast), color var(--motion-fast); }
.hotspot-dot::before { content: ''; position: absolute; inset: -6px; border: 1px solid #fff9; border-radius: inherit; transition: transform .6s var(--motion-ease), opacity .6s; }
.hotspot-label { position: absolute; bottom: calc(100% + 8px); left: 50%; transform: translate(-50%,5px); opacity: 0; pointer-events: none; padding: 7px 10px; white-space: nowrap; color: #fff; background: #272923; font-size: 11px; transition: opacity var(--motion-fast), transform var(--motion-fast) var(--motion-ease); }
.material-hotspot summary:hover .hotspot-label,.material-hotspot summary:focus-visible .hotspot-label { transform: translate(-50%,0); opacity: 1; }
.material-hotspot summary:hover .hotspot-dot,.material-hotspot[open] .hotspot-dot { transform: scale(1.09); background: var(--brand-dark); color: #fff; }
.material-hotspot summary:hover .hotspot-dot::before { transform: scale(1.18); opacity: .4; }
.material-hotspot summary:focus-visible { outline: 2px solid #fff; outline-offset: 8px; border-radius: 50%; }
.material-hotspot[open] summary { z-index: 4; }
.hotspot-panel { position: absolute; z-index: 3; left: 24px; bottom: 63px; width: min(310px,calc(100% - 48px)); padding: 22px 24px; color: var(--ink); background: var(--paper); box-shadow: 0 12px 30px #181a1920; border-top: 2px solid var(--brand); }
.material-hotspot[open] .hotspot-panel { animation: hotspot-in 420ms var(--motion-ease) both; }
.hotspot-kicker { display: block; font-size: 9px; color: var(--brand-dark); letter-spacing: .08em; margin-bottom: 12px; text-transform: uppercase; }
.hotspot-panel h2 { font-size: 23px; letter-spacing: -.025em; line-height: 1.1; margin: 0 0 12px; }
.hotspot-panel p { font-size: 12px; line-height: 1.55; color: var(--muted); margin: 0 0 10px; }
.hotspot-panel a { display: flex; align-items: center; justify-content: space-between; min-height: 36px; font-size: 12px; color: var(--brand-dark); text-underline-offset: 4px; }
.hotspot-panel a span { font-size: 20px; }
@keyframes hotspot-in { from { opacity: .3; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.material-card .material-photo { overflow: hidden; }
.material-card img { transition: transform 900ms var(--motion-ease); }
.material-arrow { transition: transform 450ms var(--motion-ease), background 300ms, color 300ms; }
.material-card:hover .material-arrow,.material-card:focus-visible .material-arrow { transform: rotate(45deg); }
.material-card h3 { transition: color 300ms; }
.material-card:hover h3,.material-card:focus-visible h3 { color: var(--brand-dark); }
.brand .strata-mark path,.brand-link .strata-mark path,.site-header .strata-mark path { transition: transform 500ms var(--motion-ease); }
.site-header a:hover .strata-mark path:nth-child(n+3),.site-header a:focus-visible .strata-mark path:nth-child(n+3) { transform: translateY(-3px); }
.site-header a:hover .strata-mark path:first-child,.site-header a:focus-visible .strata-mark path:first-child { transform: translateY(3px); }
.choice-body { animation-duration: 480ms; animation-timing-function: var(--motion-ease); }
.task-photo { overflow: hidden; }
.task-choices summary .choice-number { transition: color 300ms; }
.task-choices summary:hover .choice-number { color: #e0ad8d; }
.button > span[aria-hidden],.link-arrow::after { display: inline-block; transition: transform 450ms var(--motion-ease); }
.button:hover > span[aria-hidden],.button:focus-visible > span[aria-hidden] { transform: translate(3px,-3px); }
.process-list li { position: relative; }
.process-list li::before { content: ''; position: absolute; top: -1px; left: 0; height: 1px; width: 100%; background: var(--brand); transform: scaleX(0); transform-origin: left; transition: transform 750ms var(--motion-ease); }
.process-list li:hover::before { transform: scaleX(1); }
@media (max-width:780px) {
  .atelier-photo { aspect-ratio: 1.25; }
  .material-explore-hint { top: 16px; left: 18px; font-size: 9px; }
  .material-hotspot summary { top: auto; bottom: 44px; transform: translateX(-50%); }
  .material-hotspot-1 summary { left: 20%; }
  .material-hotspot-2 summary { left: 50%; }
  .material-hotspot-3 summary { left: 80%; }
  .hotspot-panel { top: auto; bottom: 100px; left: 18px; width: calc(100% - 36px); padding: 15px 17px; }
  .hotspot-panel h2 { font-size: 21px; margin-bottom: 8px; }
  .hotspot-panel p { font-size: 11px; margin-bottom: 4px; }
  .hotspot-kicker { margin-bottom: 8px; font-size: 8px; }
  .hotspot-panel a { font-size: 11px; min-height: 32px; }
}
@media (max-width:360px) {
  .atelier-photo { aspect-ratio: 1.05; }
  .hotspot-panel h2 { font-size: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  *,*::before,*::after { animation: none !important; transition: none !important; scroll-behavior: auto !important; }
  .button:hover,.material-card:hover img,.material-card:focus-visible img { transform: none; }
  .atelier-photo > img { transform: none; }
  .material-hotspot summary:hover .hotspot-dot,.material-hotspot[open] .hotspot-dot,.material-card:hover .material-arrow,.material-card:focus-visible .material-arrow,.site-header a:hover .strata-mark path,.site-header a:focus-visible .strata-mark path { transform: none; }
}