/* Country Stone — styles based on the 2025 product brochure */
:root {
  --black: #1a1a1a;
  --black-2: #262626;
  --red: #dc212b;
  --red-dark: #b3161f;
  --concrete: #e7e6e3;
  --concrete-2: #d9d7d3;
  --line: #d4d1cc;
  --grey: #6b6b6b;
  --ink: #222;
  --white: #fff;
  --radius: 10px;
  --shadow: 0 8px 24px rgba(0,0,0,.08);
  --max: 1200px;
  --header-h: 92px;
  --head: "Montserrat", "Segoe UI", Arial, sans-serif;
  --body: "Open Sans", "Segoe UI", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-padding-top: calc(var(--header-h) + 12px); }
body { margin: 0; font-family: var(--body); font-size: 16.5px; line-height: 1.65; color: var(--ink); background: #f4f3f1; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: var(--red-dark); }
h1, h2, h3, h4 { font-family: var(--head); line-height: 1.15; margin: 0 0 .6em; color: var(--black); }
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); font-weight: 900; text-transform: uppercase; letter-spacing: -.01em; }
h2 { font-size: clamp(1.6rem, 3.2vw, 2.3rem); font-weight: 800; }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
.container { width: min(var(--max), 100% - 2.5rem); margin-inline: auto; }
.muted { color: var(--grey); }
.small { font-size: .88rem; }
.center { text-align: center; }
.mt { margin-top: 1.6rem; }

/* Buttons */
.btn { display: inline-block; padding: .85rem 1.6rem; border-radius: 6px; background: var(--red); color: #fff; border: 2px solid var(--red);
  font-family: var(--head); font-weight: 700; font-size: .95rem; text-transform: uppercase; letter-spacing: .03em; text-decoration: none; cursor: pointer;
  transition: background .2s, border-color .2s, transform .2s; }
.btn:hover { background: var(--red-dark); border-color: var(--red-dark); transform: translateY(-1px); }
.btn-ghost { background: transparent; border-color: rgba(255,255,255,.8); }
.btn-ghost:hover { background: rgba(255,255,255,.12); border-color: #fff; }
.btn-dark { background: var(--black); border-color: var(--black); }
.btn-dark:hover { background: var(--red); border-color: var(--red); }
.btn-small { padding: .55rem 1rem; font-size: .8rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .7; cursor: wait; }
.text-link { font-weight: 700; text-decoration: none; font-family: var(--head); }
.text-link:hover { text-decoration: underline; }

/* Top bar + header */
.topbar { background: #0f0f0f; color: #bdbdbd; font-size: .8rem; }
.topbar-wrap { display: flex; justify-content: space-between; gap: 1rem; padding: .45rem 0; }
.topbar-links { display: flex; gap: 1.25rem; }
.topbar a { color: #fff; text-decoration: none; font-weight: 600; }
.topbar a:hover { color: var(--red); }
.site-header { position: sticky; top: 0; z-index: 50; background: var(--black); height: var(--header-h); border-bottom: 4px solid var(--red); }
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 100%; }
.brand img { height: 66px; width: auto; border-radius: 8px; }
.site-nav { display: flex; align-items: center; gap: 1.6rem; }
.site-nav a { color: #fff; text-decoration: none; font-family: var(--head); font-weight: 700; font-size: .86rem; text-transform: uppercase; letter-spacing: .05em; }
.site-nav a:not(.btn):hover, .site-nav a.current { color: var(--red); }
.site-nav .btn { color: #fff; }
.nav-toggle { display: none; background: none; border: 0; width: 44px; height: 44px; cursor: pointer; padding: 10px; }
.nav-toggle span { display: block; height: 3px; background: #fff; margin: 5px 0; border-radius: 2px; transition: transform .3s, opacity .3s; }

/* Hero */
.hero { position: relative; min-height: min(78vh, 760px); display: flex; align-items: center; color: #fff; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; background-size: cover; background-position: center 55%; transform: scale(1.05); animation: slowzoom 16s ease-out forwards; }
@keyframes slowzoom { to { transform: scale(1); } }
.hero-overlay { position: absolute; inset: 0; background: linear-gradient(95deg, rgba(10,10,10,.9) 0%, rgba(10,10,10,.68) 50%, rgba(10,10,10,.25) 100%); }
.hero-content { position: relative; padding: 4.5rem 0; }
.hero-content > * { max-width: 700px; }
.hero h1 { color: #fff; }
.hero h1 span { color: var(--red); display: block; }
.hero-kicker { display: inline-block; font-family: var(--head); font-weight: 700; text-transform: uppercase; letter-spacing: .14em; font-size: .78rem; color: #fff; background: var(--red); padding: .35rem .75rem; border-radius: 4px; margin-bottom: 1.2rem; }
.lead { font-size: 1.15rem; opacity: .93; }
.hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.8rem; }

.call-strip { background: var(--red); color: #fff; }
.call-strip-wrap { display: flex; justify-content: space-between; align-items: center; gap: 1rem; flex-wrap: wrap; padding: 1rem 0; font-family: var(--head); }
.call-strip p { margin: 0; font-weight: 500; }
.call-strip-link { color: #fff; font-weight: 700; text-decoration: none; }
.call-strip-link:hover { text-decoration: underline; }

/* Sections */
.section { padding: clamp(3.5rem, 8vw, 6rem) 0; }
.section-concrete { background: var(--concrete) url('../assets/img/photos/concrete-texture.jpg') center/cover; position: relative; }
.section-concrete::before { content: ""; position: absolute; inset: 0; background: rgba(244,243,241,.78); }
.section-concrete > * { position: relative; }
.section-dark { background: var(--black); color: #d6d6d6; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-dark a { color: #ff6b72; }
.section-head { max-width: 720px; margin-bottom: 2.2rem; }
.bar-title { display: inline-block; background: var(--black); color: #fff; text-transform: uppercase; font-weight: 800; padding: .45rem 1.1rem .45rem 1rem; border-left: 6px solid var(--red); border-radius: 4px; }
.bar-title-light, .section-dark .bar-title-light { background: #fff; color: var(--black); }
.group-title { font-size: .95rem; text-transform: uppercase; letter-spacing: .1em; color: var(--grey); border-bottom: 2px solid var(--line); padding-bottom: .5rem; margin: 2rem 0 1.2rem; }

.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }

/* Range cards */
.range-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.4rem; }
.range-card { display: flex; flex-direction: column; background: #fff; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); text-decoration: none; color: inherit; border: 1px solid #ebe9e5; transition: transform .25s, box-shadow .25s, border-color .25s; }
.range-card:hover { transform: translateY(-4px); box-shadow: 0 16px 34px rgba(0,0,0,.13); border-color: var(--red); }
.range-img { background: radial-gradient(circle at 50% 60%, #ffffff 0%, #ecebe8 75%); aspect-ratio: 4/3; display: flex; align-items: center; justify-content: center; padding: 1.2rem; }
.range-img { position: relative; }
.range-img img { position: absolute; inset: 1.2rem; width: calc(100% - 2.4rem); height: calc(100% - 2.4rem); object-fit: contain; filter: drop-shadow(0 10px 12px rgba(0,0,0,.18)); transition: transform .35s; }
.range-card:hover .range-img img { transform: scale(1.05); }
.range-body { padding: 1rem 1.2rem 1.25rem; border-top: 3px solid var(--black); flex: 1; display: flex; flex-direction: column; }
.range-body h3 { text-transform: uppercase; font-size: 1.02rem; margin-bottom: .35em; }
.range-body p { font-size: .92rem; color: var(--grey); margin-bottom: .8rem; }
.range-meta { margin-top: auto; font-family: var(--head); font-weight: 700; font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; color: var(--red); }
.center .btn { margin-top: 2.2rem; }

/* About */
.about-photos { display: grid; grid-template-columns: 1fr 1fr; gap: .8rem; }
.about-photos img { border-radius: var(--radius); width: 100%; aspect-ratio: 4/3; object-fit: cover; box-shadow: var(--shadow); }
.about-photos .about-main { grid-column: span 2; aspect-ratio: 16/9; }
.ticks { list-style: none; padding: 0; margin: 1.2rem 0 0; }
.ticks li { padding: .35rem 0 .35rem 1.8rem; position: relative; font-weight: 600; }
.ticks li::before { content: ""; position: absolute; left: 0; top: .72rem; width: 14px; height: 8px; border-left: 3px solid var(--red); border-bottom: 3px solid var(--red); transform: rotate(-45deg); }

/* Swatches */
.colour-blocks { display: grid; grid-template-columns: 1.4fr 1fr; gap: 3rem; }
.swatches { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(86px, 1fr)); gap: 1rem .8rem; }
.swatches li { text-align: center; font-size: .78rem; font-weight: 600; color: var(--ink); font-family: var(--head); line-height: 1.25; }
.swatches img { width: 76px; height: 76px; margin: 0 auto .45rem; border-radius: 50%; object-fit: cover; border: 3px solid #1a1a1a; box-shadow: 0 4px 10px rgba(0,0,0,.15); }

/* Gallery */
.filters { display: flex; flex-wrap: wrap; gap: .5rem; margin-bottom: 1.6rem; }
.filter { font-family: var(--head); font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .04em; padding: .55rem 1rem; border-radius: 5px; border: 1px solid #444; background: transparent; color: #ddd; cursor: pointer; transition: all .2s; }
.filter:hover { border-color: var(--red); color: #fff; }
.filter.active { background: var(--red); border-color: var(--red); color: #fff; }
.gallery { columns: 4 240px; column-gap: .9rem; }
.gallery a { display: block; margin-bottom: .9rem; border-radius: 8px; overflow: hidden; break-inside: avoid; }
.gallery a.hide { display: none; }
.gallery img, .photo-strip img { width: 100%; transition: transform .5s ease; }
.gallery a:hover img, .photo-strip a:hover img { transform: scale(1.04); }

.lightbox { position: fixed; inset: 0; z-index: 100; background: rgba(8,8,8,.95); display: flex; align-items: center; justify-content: center; padding: 3rem 4rem; }
.lightbox[hidden] { display: none; }
.lightbox figure { margin: 0; text-align: center; }
.lightbox img { max-width: 100%; max-height: 80vh; margin: 0 auto; border-radius: 6px; }
.lightbox figcaption { color: #ddd; margin-top: .9rem; font-size: .95rem; }
.lightbox button { position: absolute; background: rgba(255,255,255,.1); border: 0; color: #fff; font-size: 2rem; line-height: 1; width: 52px; height: 52px; border-radius: 50%; cursor: pointer; }
.lightbox button:hover { background: var(--red); }
.lb-close { top: 1rem; right: 1rem; }
.lb-prev { left: 1rem; top: 50%; transform: translateY(-50%); }
.lb-next { right: 1rem; top: 50%; transform: translateY(-50%); }

/* Projects / areas (shared with earlier design) */
.project-groups { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.75rem; }
.project-group { border-top: 4px solid var(--red); padding-top: 1.2rem; }
.project-group h3 { text-transform: uppercase; font-size: 1rem; }
.project-group ul { list-style: none; margin: 0; padding: 0; }
.project-group li { padding: .6rem 0; border-bottom: 1px solid var(--line); }
#projects .section-head h2, #contact h2 { font-weight: 800; }
#projects .eyebrow, #areas .eyebrow, #contact .eyebrow { font-family: var(--head); text-transform: uppercase; letter-spacing: .14em; font-size: .75rem; font-weight: 700; color: var(--red); margin-bottom: .6rem; }
#areas .eyebrow { color: #ff6b72; }
.areas { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chips span { background: #2b2b2b; border: 1px solid #3a3a3a; color: #e6e6e6; padding: .38rem .85rem; border-radius: 5px; font-size: .9rem; }

/* Contact */
.split-contact { align-items: start; }
.contact-list { list-style: none; padding: 0; margin: 1.5rem 0; }
.contact-list li { display: grid; grid-template-columns: 130px 1fr; gap: .5rem; padding: .75rem 0; border-bottom: 1px solid var(--line); }
.contact-list span { font-family: var(--head); font-size: .74rem; text-transform: uppercase; letter-spacing: .08em; color: var(--grey); font-weight: 700; padding-top: .2rem; }
.contact-list a { text-decoration: none; font-weight: 700; color: var(--red-dark); }
.map { position: relative; display: block; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); margin-bottom: 1rem; border: 1px solid var(--line); text-decoration: none; transition: box-shadow .25s, transform .25s; }
.map:hover { transform: translateY(-2px); box-shadow: 0 16px 36px rgba(0,0,0,.15); }
.map svg { display: block; width: 100%; height: auto; font-family: var(--body); }
.map-cta { display: block; background: var(--black); color: #fff; font-family: var(--head); text-transform: uppercase; letter-spacing: .05em; font-size: .82rem; font-weight: 700; padding: .8rem 1rem; text-align: center; transition: background .2s; }
.map:hover .map-cta { background: var(--red); }
.directions { font-size: .95rem; color: var(--grey); }
.quote-form { background: #fff; padding: clamp(1.5rem, 4vw, 2.4rem); border-radius: var(--radius); box-shadow: var(--shadow); border-top: 5px solid var(--red); }
.quote-form h3 { text-transform: uppercase; }
.quote-form label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 1rem; }
.quote-form input, .quote-form textarea, .quote-form select, .calc-form input, .calc-form select {
  display: block; width: 100%; margin-top: .4rem; padding: .8rem .95rem; border: 1px solid var(--line); border-radius: 6px; font: inherit; background: #f7f6f4; color: var(--ink); transition: border-color .2s, box-shadow .2s; }
.quote-form input:focus, .quote-form textarea:focus, .quote-form select:focus, .calc-form input:focus, .calc-form select:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px rgba(220,33,43,.15); background: #fff; }
.quote-form .invalid { border-color: var(--red); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.hp { position: absolute !important; left: -9999px; }
.form-status { margin: 1rem 0 0; font-weight: 600; min-height: 1.5em; }
.form-status.ok { color: #2e7d32; }
.form-status.err { color: var(--red); }

/* Products page */
.page-hero { background: linear-gradient(95deg, rgba(10,10,10,.92), rgba(10,10,10,.7)), url('../assets/img/photos/lintels-yard.jpg') center/cover; color: #fff; padding: clamp(3rem, 7vw, 5rem) 0; }
.page-hero h1 { color: #fff; }
.cat-nav { position: sticky; top: var(--header-h); z-index: 40; background: #fff; border-bottom: 1px solid var(--line); box-shadow: 0 4px 12px rgba(0,0,0,.05); }
.cat-nav-scroll { display: flex; gap: .4rem; overflow-x: auto; padding: .7rem 0; scrollbar-width: thin; }
.cat-nav a { flex: 0 0 auto; font-family: var(--head); font-weight: 700; font-size: .76rem; text-transform: uppercase; letter-spacing: .04em; text-decoration: none; color: var(--black); padding: .5rem .85rem; border-radius: 5px; background: #f1f0ee; transition: background .2s, color .2s; }
.cat-nav a:hover, .cat-nav a.active { background: var(--red); color: #fff; }
html.products { scroll-padding-top: calc(var(--header-h) + 70px); }

.calc-section { background: var(--concrete) url('../assets/img/photos/concrete-texture.jpg') center/cover; padding: 2.5rem 0; position: relative; }
.calc-section::before { content: ""; position: absolute; inset: 0; background: rgba(244,243,241,.8); }
.calc { position: relative; display: grid; grid-template-columns: 1fr 1.3fr; gap: 2.5rem; align-items: center; }
.calc h2 { text-transform: uppercase; font-size: 1.6rem; }
.calc-form { background: #fff; border-radius: var(--radius); padding: 1.5rem; box-shadow: var(--shadow); display: grid; grid-template-columns: 1.5fr 1fr; gap: 0 1rem; border-top: 5px solid var(--red); }
.calc-form label { font-weight: 600; font-size: .9rem; margin-bottom: 1rem; }
.calc-result { grid-column: span 2; display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; background: var(--black); color: #fff; border-radius: 8px; padding: 1rem 1.2rem; }
.calc-result strong { display: block; font-family: var(--head); font-size: 1.9rem; font-weight: 900; color: #fff; }
.calc-result span { font-size: .8rem; text-transform: uppercase; letter-spacing: .08em; color: #bbb; }
.calc-form p { grid-column: span 2; margin: .9rem 0 0; }

.category { padding: clamp(3rem, 6vw, 4.5rem) 0; background: #fff; }
.category-alt { background: #f4f3f1; }
.cat-title { display: flex; align-items: center; background: var(--black); color: #fff; text-transform: uppercase; font-weight: 900; font-size: clamp(1.4rem, 3vw, 2.1rem); padding: .7rem 1.2rem; border-radius: 6px; border-left: 8px solid var(--red); letter-spacing: .01em; }
.cat-intro { display: grid; grid-template-columns: 1fr auto; gap: 2rem; align-items: start; margin: 1.4rem 0 2rem; }
.cat-desc { max-width: 820px; }
.note { display: inline-block; background: var(--black); color: #fff; font-family: var(--head); font-weight: 600; font-size: .9rem; padding: .5rem .9rem; border-radius: 5px; }
.variants { display: grid; grid-template-columns: repeat(auto-fill, minmax(250px, 1fr)); gap: 1.2rem; }
.variants-wide { grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); }
.variant { background: #fff; border: 1px solid #e6e4e0; border-radius: var(--radius); padding: 1.1rem 1.1rem 1.2rem; box-shadow: 0 3px 12px rgba(0,0,0,.04); display: flex; flex-direction: column; }
.category-alt .variant { background: #fff; }
.variant-img { aspect-ratio: 16/10; display: flex; align-items: center; justify-content: center; margin-bottom: .9rem; background: radial-gradient(circle at 50% 60%, #fff, #f0efec 80%); border-radius: 8px; padding: .8rem; }
.variant-img { position: relative; }
.variant-img img { position: absolute; inset: .8rem; width: calc(100% - 1.6rem); height: calc(100% - 1.6rem); object-fit: contain; filter: drop-shadow(0 8px 10px rgba(0,0,0,.16)); }
.tag { align-self: flex-start; background: var(--black); color: #fff; font-size: .78rem; text-transform: uppercase; letter-spacing: .04em; padding: .35rem .7rem; border-radius: 4px; margin-bottom: .8rem; }
.specs { margin: 0; display: grid; gap: 0; font-size: .9rem; }
.specs div { display: grid; grid-template-columns: 76px 1fr; gap: .5rem; padding: .38rem 0; border-bottom: 1px dashed #e2dfda; }
.specs div:last-child { border-bottom: 0; }
.specs dt { font-weight: 700; font-family: var(--head); font-size: .76rem; text-transform: uppercase; letter-spacing: .03em; color: var(--grey); padding-top: .15rem; }
.specs dd { margin: 0; font-weight: 600; }
.variant-about { font-size: .86rem; color: var(--grey); margin: .8rem 0 0; }
.cobble-strip { display: grid; grid-template-columns: repeat(8, 1fr); gap: .6rem; margin-bottom: 1.6rem; }
.cobble-strip img { filter: drop-shadow(0 6px 8px rgba(0,0,0,.18)); }
.diagrams { margin-top: 2rem; background: #fff; border: 1px solid #e6e4e0; border-radius: var(--radius); padding: 1.4rem; }
.diagrams h3, .cat-colours h3 { text-transform: uppercase; font-size: .95rem; letter-spacing: .06em; }
.diagrams figure { margin: 0 0 1.2rem; }
.diagrams figure:last-child { margin-bottom: 0; }
.cat-colours { margin-top: 2rem; }
.photo-strip { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .7rem; margin-top: 2rem; }
.photo-strip a { border-radius: 8px; overflow: hidden; aspect-ratio: 4/3; }
.photo-strip img { height: 100%; object-fit: cover; }
.cta-band h2 { color: #fff; text-transform: uppercase; }
.cta-band p { font-size: 1.1rem; }

/* Footer */
.site-footer { background: var(--black); color: #bdbdbd; font-size: .92rem; }
.footer-call { background: var(--red); color: #fff; font-family: var(--head); font-weight: 900; font-size: clamp(1.2rem, 3vw, 1.8rem); padding: 1rem 0; letter-spacing: .02em; }
.footer-call a { color: #fff; text-decoration: none; }
.footer-grid { display: grid; grid-template-columns: 1.3fr 1fr 1fr 1fr; gap: 2rem; padding: 3rem 0 2rem; }
.footer-logo { width: 220px; border-radius: 6px; margin-bottom: 1rem; }
.site-footer h4 { color: #fff; text-transform: uppercase; font-size: .85rem; letter-spacing: .1em; border-bottom: 2px solid var(--red); display: inline-block; padding-bottom: .3rem; }
.site-footer a:not(.btn) { color: #fff; text-decoration: none; }
.site-footer a:not(.btn):hover { color: var(--red); }
.footer-links { list-style: none; margin: 0; padding: 0; columns: 2; column-gap: 1.2rem; font-size: .88rem; }
.footer-links li { padding: .15rem 0; }
.footer-bottom { border-top: 1px solid #333; padding: 1.2rem 0; font-size: .82rem; color: #8a8a8a; }

/* Reveal */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero-bg { animation: none; transform: none; }
  html { scroll-behavior: auto; }
}

/* Responsive */
@media (max-width: 1080px) {
  .site-nav { gap: 1.1rem; }
  .site-nav a { font-size: .8rem; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 980px) {
  :root { --header-h: 76px; }
  .brand img { height: 54px; }
  .topbar-wrap > span:first-child { display: none; }
  .topbar-links { width: 100%; justify-content: space-between; }
  .nav-toggle { display: block; position: relative; z-index: 60; }
  .site-nav { position: fixed; inset: 0; height: 100vh; background: var(--black); flex-direction: column; justify-content: center; gap: 1.6rem; transform: translateX(100%); transition: transform .35s ease; }
  .site-nav a:not(.btn) { font-size: 1.2rem; }
  .nav-open .site-nav { transform: none; }
  .nav-open .nav-toggle span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
  .nav-open .nav-toggle span:nth-child(2) { opacity: 0; }
  .nav-open .nav-toggle span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }
  .split, .areas, .colour-blocks, .calc { grid-template-columns: 1fr; }
  .project-groups, .range-grid { grid-template-columns: 1fr 1fr; }
  .cat-intro { grid-template-columns: 1fr; gap: 1rem; }
  .cat-intro .btn { justify-self: start; }
  .cobble-strip { grid-template-columns: repeat(4, 1fr); }
}
@media (max-width: 600px) {
  body { font-size: 16px; }
  .topbar-links a:last-child { display: none; }
  .project-groups, .field-row, .footer-grid { grid-template-columns: 1fr; }
  .range-grid { grid-template-columns: 1fr 1fr; gap: .8rem; }
  .range-body { padding: .8rem .85rem 1rem; }
  .range-body p { display: none; }
  .range-body h3 { font-size: .86rem; }
  .calc-form { grid-template-columns: 1fr; }
  .calc-result, .calc-form p { grid-column: auto; }
  .contact-list li { grid-template-columns: 110px 1fr; }
  .lightbox { padding: 3.5rem .5rem; }
  .lb-prev, .lb-next { top: auto; bottom: 1rem; transform: none; }
  .hero { min-height: 70vh; }
  .variants, .variants-wide { grid-template-columns: 1fr 1fr; gap: .7rem; }
  .variant { padding: .7rem; }
  .tag { font-size: .66rem; padding: .3rem .5rem; }
  .specs { font-size: .82rem; }
  .specs div { grid-template-columns: 1fr; gap: 0; padding: .3rem 0; }
  .specs dt { font-size: .64rem; padding: 0; }
  .variant-about { font-size: .78rem; }
  .photo-strip { grid-template-columns: repeat(3, 1fr); gap: .4rem; }
  .swatches img { width: 60px; height: 60px; }
  .swatches { grid-template-columns: repeat(4, 1fr); }
}