:root {
  --ink: #18201c;
  --forest: #273b31;
  --sage: #65766a;
  --paper: #f3f1eb;
  --paper-strong: #faf9f5;
  --line: rgba(24, 32, 28, 0.16);
  --muted: #687068;
  --white: #ffffff;
  --shadow: 0 24px 70px rgba(24, 32, 28, 0.12);
  --radius: 26px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { display: block; width: 100%; }
a { color: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
button { font: inherit; }

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--ink);
  color: var(--white);
  transform: translateY(-150%);
}
.skip-link:focus { transform: translateY(0); }

.site-header {
  position: absolute;
  z-index: 10;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px clamp(20px, 4vw, 64px);
}

.brand {
  display: grid;
  place-items: center;
  width: 106px;
  height: 56px;
  overflow: hidden;
  border-radius: 4px;
}
.brand img { width: 104px; height: auto; }

nav { display: flex; align-items: center; gap: 28px; }
nav a { font-size: 0.83rem; font-weight: 700; text-decoration: none; letter-spacing: 0.02em; }
.nav-cta { padding: 11px 16px; border: 1px solid currentColor; border-radius: 100px; }

.hero {
  min-height: 760px;
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  background: #e5e5df;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 130px clamp(28px, 6vw, 96px) 74px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--sage);
  font-size: 0.72rem;
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { line-height: 1.04; letter-spacing: -0.045em; }
h1 { margin-bottom: 28px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(4rem, 9vw, 8.8rem); font-weight: 400; }
.hero h1 { max-width: 100%; overflow-wrap: anywhere; font-size: clamp(3.2rem, 7vw, 8.2rem); }
h2 { margin-bottom: 22px; font-size: clamp(2.35rem, 5vw, 4.7rem); font-weight: 520; }
h3 { font-size: clamp(1.6rem, 3vw, 2.35rem); font-weight: 560; }

.hero-lead { max-width: 600px; margin-bottom: 34px; color: #4c554e; font-size: clamp(1.03rem, 1.5vw, 1.25rem); }
.hero-actions { display: flex; align-items: center; gap: 24px; flex-wrap: wrap; }
.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 13px 19px;
  border: 0;
  border-radius: 999px;
  cursor: pointer;
  font-weight: 780;
  font-size: 0.9rem;
  text-decoration: none;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}
.button:hover { transform: translateY(-2px); }
.button:focus-visible, button:focus-visible, a:focus-visible { outline: 3px solid #d8a857; outline-offset: 3px; }
.button-primary { background: var(--forest); color: var(--white); }
.button-dark { width: 100%; margin-top: auto; background: var(--ink); color: var(--white); }
.button-light { background: var(--paper-strong); color: var(--ink); }
.text-link { font-size: 0.9rem; font-weight: 750; text-underline-offset: 5px; }

.hero-facts { display: grid; grid-template-columns: repeat(3, 1fr); max-width: 600px; margin: 70px 0 0; padding-top: 24px; border-top: 1px solid var(--line); }
.hero-facts div { min-width: 0; }
.hero-facts dt { margin-bottom: 4px; color: var(--muted); font-size: 0.7rem; font-weight: 750; letter-spacing: 0.1em; text-transform: uppercase; }
.hero-facts dd { margin: 0; font-size: 0.92rem; font-weight: 760; }

.hero-visual { position: relative; min-height: 700px; overflow: hidden; }
.hero-visual img { height: 100%; object-fit: cover; }
.hero-visual p { position: absolute; right: 24px; bottom: 20px; margin: 0; padding: 8px 12px; border-radius: 999px; background: rgba(247, 245, 239, 0.88); backdrop-filter: blur(8px); font-size: 0.7rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; }

.studio { padding: 104px clamp(20px, 5vw, 76px) 112px; background: var(--paper-strong); }
.section-heading { display: grid; grid-template-columns: 1fr minmax(280px, 470px); gap: 48px; align-items: end; max-width: 1460px; margin: 0 auto 54px; }
.section-heading h2 { margin-bottom: 0; }
.section-heading > p { margin: 0 0 8px; color: var(--muted); font-size: 1rem; }

.studio-toolbar { display: grid; grid-template-columns: 1.4fr 0.8fr 0.8fr; gap: 18px; max-width: 1460px; margin: 0 auto 22px; }
.control-group { min-width: 0; margin: 0; padding: 0; border: 0; }
.control-group legend { margin-bottom: 8px; color: var(--muted); font-size: 0.67rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.segmented { display: grid; grid-template-columns: repeat(2, 1fr); gap: 5px; padding: 5px; border: 1px solid var(--line); border-radius: 999px; background: #eeece6; }
.colour-buttons { grid-template-columns: repeat(auto-fit, minmax(88px, 1fr)); }
#thickness-controls { grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); }
#thickness-controls button { white-space: normal; }
.segmented button { min-width: 0; padding: 10px 12px; border: 0; border-radius: 999px; background: transparent; color: #535d55; cursor: pointer; white-space: nowrap; font-size: 0.79rem; font-weight: 760; transition: background 180ms ease, box-shadow 180ms ease, color 180ms ease; }
.segmented button[aria-pressed="true"] { background: var(--white); color: var(--ink); box-shadow: 0 4px 14px rgba(24, 32, 28, 0.08); }

.material-stage { display: grid; grid-template-columns: minmax(0, 1.58fr) minmax(340px, 0.72fr); min-height: 670px; max-width: 1460px; margin: 0 auto; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: #ecebe7; box-shadow: var(--shadow); }
.material-image-wrap { position: relative; min-height: 620px; overflow: hidden; background: #e8e8e5; }
.material-image-wrap img { height: 100%; object-fit: cover; transition: opacity 160ms ease; }
.image-badge { position: absolute; left: 20px; bottom: 20px; display: flex; gap: 7px; }
.image-badge span { padding: 8px 11px; border-radius: 999px; background: rgba(250, 249, 245, 0.9); backdrop-filter: blur(8px); font-size: 0.7rem; font-weight: 800; letter-spacing: 0.06em; text-transform: uppercase; }

.material-detail { display: flex; flex-direction: column; padding: clamp(28px, 4vw, 54px); background: var(--white); }
.selection-index { margin-bottom: 68px; color: var(--sage); font-family: Georgia, "Times New Roman", serif; font-size: 1.05rem; }
.material-detail h3 { margin-bottom: 16px; }
.tone { color: var(--muted); font-size: 1rem; }
.application-block { margin: 30px 0; padding: 22px 0; border-block: 1px solid var(--line); }
.application-block > p { margin-bottom: 12px; color: var(--muted); font-size: 0.68rem; font-weight: 800; letter-spacing: 0.12em; text-transform: uppercase; }
.application-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 0; padding: 0; list-style: none; }
.application-list li { padding: 7px 10px; border-radius: 999px; background: var(--paper); font-size: 0.76rem; font-weight: 720; }
.spec-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 28px; }
.spec-item span { display: block; margin-bottom: 4px; color: var(--muted); font-size: 0.66rem; font-weight: 800; letter-spacing: 0.08em; text-transform: uppercase; }
.spec-item strong { font-size: 0.84rem; }

.palette-block { max-width: 1460px; margin: 88px auto 0; }
.palette-heading { display: flex; align-items: end; justify-content: space-between; gap: 40px; margin-bottom: 24px; }
.palette-heading h3 { margin-bottom: 0; }
.palette-heading > p { max-width: 480px; margin: 0 0 4px; color: var(--muted); font-size: 0.9rem; }
.palette-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 14px; }
.palette-card { position: relative; padding: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 18px; background: #eee; cursor: pointer; text-align: left; }
.palette-card img { aspect-ratio: 1 / 0.92; object-fit: cover; transition: transform 360ms ease; }
.palette-card:hover img { transform: scale(1.025); }
.palette-meta { position: absolute; right: 0; bottom: 0; left: 0; display: flex; align-items: center; justify-content: space-between; padding: 24px 16px 13px; background: linear-gradient(transparent, rgba(12, 15, 13, 0.72)); color: var(--white); }
.palette-meta strong { font-size: 0.96rem; }
.palette-meta > span { font-size: 0.7rem; opacity: 0.8; }
.palette-card[aria-pressed="true"] { box-shadow: 0 0 0 3px var(--forest); }

.specifications { padding: 108px clamp(20px, 6vw, 96px) 48px; background: #dfe1dc; }
.spec-copy { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 80px; max-width: 1340px; margin: 0 auto 54px; }
.spec-copy h2 { margin-bottom: 0; }
.spec-copy > p:last-child { align-self: end; margin-bottom: 8px; color: #4f5951; font-size: 1.06rem; }
.compare-table-wrap { max-width: 1340px; margin: 0 auto; overflow-x: auto; border-radius: 18px; box-shadow: 0 14px 48px rgba(24, 32, 28, 0.08); }
table { width: 100%; min-width: 760px; border-collapse: collapse; background: var(--paper-strong); }
th, td { padding: 20px 22px; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
thead th { background: var(--ink); color: var(--white); font-size: 0.73rem; letter-spacing: 0.07em; text-transform: uppercase; }
tbody th { width: 22%; font-size: 0.76rem; letter-spacing: 0.05em; text-transform: uppercase; }
tbody td { width: 39%; color: #4f5951; font-size: 0.91rem; }
tbody td { width: auto; }

.contact-panel { display: grid; grid-template-columns: 1.3fr 0.7fr; gap: 70px; max-width: 1340px; margin: 42px auto 0; padding: clamp(30px, 5vw, 68px); border-radius: var(--radius); background: var(--forest); color: var(--white); }
.contact-panel .eyebrow { color: #b9c9bd; }
.contact-panel h3 { max-width: 700px; margin-bottom: 18px; font-size: clamp(2rem, 4vw, 3.8rem); }
.contact-panel p:last-child { max-width: 700px; margin-bottom: 0; color: #ced8d1; }
.contact-actions { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; gap: 18px; }
.contact-actions > a:not(.button) { font-size: 0.9rem; font-weight: 700; text-decoration-color: rgba(255,255,255,.4); text-underline-offset: 4px; }
.disclaimer { max-width: 1340px; margin: 24px auto 0; color: #5a625c; font-size: 0.72rem; }

body > footer { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 26px clamp(20px, 6vw, 96px); background: var(--ink); color: #bfc7c1; font-size: 0.75rem; }
body > footer p { margin: 0; }

@media (max-width: 980px) {
  nav > a:not(.nav-cta) { display: none; }
  .hero { min-height: auto; grid-template-columns: 1fr; }
  .hero-copy { min-height: 650px; }
  .hero-visual { min-height: 560px; }
  .section-heading, .spec-copy { grid-template-columns: 1fr; gap: 20px; }
  .studio-toolbar { grid-template-columns: 1fr 1fr; }
  .colour-control { grid-column: 1 / -1; }
  .material-stage { grid-template-columns: 1fr; }
  .material-image-wrap { min-height: 590px; }
  .selection-index { margin-bottom: 26px; }
  .material-detail { min-height: 510px; }
  .palette-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .site-header { padding: 14px 16px; }
  .brand { width: 86px; height: 48px; }
  .brand img { width: 86px; }
  .nav-cta { padding: 9px 12px; font-size: 0.75rem; }
  .hero-copy { min-height: 650px; padding: 118px 20px 56px; }
  h1 { font-size: clamp(4rem, 23vw, 6.2rem); }
  .hero-lead { font-size: 1rem; }
  .hero-facts { gap: 10px; margin-top: 52px; }
  .hero-facts dd { font-size: 0.8rem; }
  .hero-visual { min-height: 420px; }
  .studio { padding-top: 76px; padding-bottom: 80px; }
  .section-heading { margin-bottom: 34px; }
  .studio-toolbar { grid-template-columns: 1fr; }
  .colour-control { grid-column: auto; }
  .colour-buttons { grid-template-columns: 1fr 1fr; border-radius: 20px; }
  #thickness-controls { grid-template-columns: 1fr; border-radius: 20px; }
  .segmented button { font-size: 0.75rem; }
  .material-stage { border-radius: 18px; }
  .material-image-wrap { min-height: 350px; }
  .material-detail { min-height: auto; padding: 28px 22px; }
  .selection-index { margin-bottom: 26px; }
  .button-dark { margin-top: 12px; }
  .palette-block { margin-top: 64px; }
  .palette-heading { align-items: flex-start; flex-direction: column; gap: 6px; }
  .palette-grid { gap: 9px; }
  .palette-card { border-radius: 13px; }
  .palette-meta { padding: 22px 10px 10px; }
  .palette-meta > span { display: none; }
  .specifications { padding-top: 76px; }
  .contact-panel { grid-template-columns: 1fr; gap: 34px; }
  body > footer { align-items: flex-start; flex-direction: column; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.001ms !important; }
}

/* Collection library */
.library-page { background: var(--paper-strong); }
.library-header { position: absolute; color: var(--ink); }
.library-hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(480px, 1.08fr);
  min-height: 760px;
  background: #e5e5df;
}
.library-hero-copy { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; padding: 134px clamp(28px, 6vw, 96px) 74px; }
.library-page h1 { max-width: 760px; margin-bottom: 28px; font-size: clamp(3.5rem, 7vw, 7.4rem); }
.library-hero-copy > p:not(.eyebrow) { max-width: 610px; margin-bottom: 34px; color: #4c554e; font-size: clamp(1.03rem, 1.5vw, 1.25rem); }
.library-hero-visual { position: relative; min-height: 700px; margin: 0; overflow: hidden; }
.library-hero-visual img { height: 100%; object-fit: cover; }
.library-hero-visual figcaption { position: absolute; right: 24px; bottom: 20px; padding: 8px 12px; border-radius: 999px; background: rgba(247,245,239,.88); font-size: .7rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.catalogue { padding: 110px clamp(20px, 6vw, 96px); }
.catalogue-heading { display: grid; grid-template-columns: 1fr minmax(280px, 460px); gap: 44px; align-items: end; max-width: 1340px; margin: 0 auto 42px; }
.catalogue-heading h2 { margin-bottom: 0; }
.catalogue-heading > p { margin: 0 0 7px; color: var(--muted); }
.catalogue-tools { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; max-width: 1340px; margin: 0 auto; padding: 18px; border: 1px solid var(--line); border-radius: 20px; background: var(--paper); }
.search-field { flex: 1 1 380px; }
.search-field span { display: block; margin-bottom: 7px; color: var(--muted); font-size: .68rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; }
.search-field input { width: 100%; min-height: 48px; padding: 11px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--white); color: var(--ink); font: inherit; }
.filter-buttons { display: flex; flex-wrap: wrap; gap: 7px; }
.filter-buttons button { min-height: 42px; padding: 9px 14px; border: 1px solid var(--line); border-radius: 999px; background: transparent; color: var(--ink); cursor: pointer; font-size: .78rem; font-weight: 760; }
.filter-buttons button[aria-pressed="true"] { background: var(--forest); color: var(--white); }
.result-count { max-width: 1340px; margin: 18px auto 12px; color: var(--muted); font-size: .76rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.collection-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; max-width: 1340px; margin: 0 auto; }
.collection-card { display: grid; grid-template-columns: minmax(250px, 1fr) minmax(300px, .9fr); min-height: 520px; overflow: hidden; border: 1px solid var(--line); border-radius: var(--radius); background: var(--white); box-shadow: var(--shadow); }
.collection-grid > .collection-card:only-child { grid-column: 1 / -1; }
.collection-image { position: relative; min-height: 420px; overflow: hidden; }
.collection-image > img { height: 100%; object-fit: cover; transition: transform 420ms ease; }
.collection-image:hover > img { transform: scale(1.02); }
.collection-image > span { position: absolute; left: 18px; bottom: 18px; padding: 8px 11px; border-radius: 999px; background: rgba(250,249,245,.9); font-size: .7rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.collection-content { display: flex; flex-direction: column; padding: clamp(26px, 4vw, 50px); }
.collection-content h3 { margin-bottom: 14px; }
.collection-content h3 a { text-decoration: none; }
.collection-content > p:not(.eyebrow) { color: var(--muted); }
.collection-swatches { display: grid; grid-template-columns: repeat(4, 1fr); gap: 7px; margin: 26px 0 32px; }
.collection-swatches span { min-width: 0; }
.collection-swatches img { aspect-ratio: 1; object-fit: cover; border-radius: 10px; }
.collection-swatches small { display: block; margin-top: 5px; overflow: hidden; color: var(--muted); font-size: .65rem; text-overflow: ellipsis; white-space: nowrap; }
.collection-content .text-link { margin-top: auto; }
.empty-state { max-width: 1340px; margin: 20px auto 0; padding: 50px; border: 1px dashed var(--line); border-radius: var(--radius); text-align: center; }
.specify-flow { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; padding: 110px clamp(20px, 6vw, 96px); background: #dfe1dc; }
.specify-flow > div { max-width: 560px; }
.specify-flow ol { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin: 0; padding: 0; list-style: none; }
.specify-flow li { min-height: 190px; padding: 24px; border: 1px solid var(--line); border-radius: 18px; background: var(--paper-strong); }
.specify-flow li span { display: block; margin-bottom: 36px; color: var(--sage); font-family: Georgia, "Times New Roman", serif; }
.specify-flow li strong { display: block; margin-bottom: 8px; font-size: 1.05rem; }
.specify-flow li p { margin: 0; color: var(--muted); font-size: .88rem; }
.library-contact { display: grid; grid-template-columns: 1fr .8fr; gap: 80px; padding: 100px clamp(20px, 6vw, 96px); background: var(--forest); color: var(--white); }
.library-contact .eyebrow { color: #b9c9bd; }
.library-contact h2 { margin-bottom: 0; }
.library-contact > div:last-child { display: flex; flex-direction: column; align-items: flex-start; justify-content: center; }
.library-contact p { color: #ced8d1; }
.missing-collection { min-height: 100vh; display: grid; place-content: center; padding: 40px; text-align: center; }

@media (max-width: 1120px) {
  .collection-grid { grid-template-columns: 1fr; }
  .collection-grid > .collection-card:only-child { grid-column: auto; }
}

@media (max-width: 980px) {
  .library-hero { grid-template-columns: 1fr; }
  .library-hero-copy { min-height: 680px; }
  .library-hero-visual { min-height: 560px; }
  .catalogue-heading, .specify-flow, .library-contact { grid-template-columns: 1fr; gap: 30px; }
  .catalogue-tools { align-items: stretch; flex-direction: column; }
  .search-field { flex-basis: auto; width: 100%; }
}

@media (max-width: 700px) {
  .library-page h1 { font-size: clamp(3.2rem, 17vw, 5.2rem); }
  .library-hero-copy { min-height: 660px; padding: 118px 20px 56px; }
  .library-hero-visual { min-height: 420px; }
  .catalogue { padding-top: 76px; padding-bottom: 76px; }
  .collection-card { grid-template-columns: 1fr; }
  .collection-image { min-height: 360px; }
  .collection-content { min-height: 390px; }
  .filter-buttons { display: grid; grid-template-columns: repeat(3, 1fr); width: 100%; }
  .filter-buttons button { padding-inline: 9px; }
  .specify-flow { padding-top: 76px; padding-bottom: 76px; }
  .specify-flow ol { grid-template-columns: 1fr; }
  .specify-flow li { min-height: 165px; }
  .library-contact { padding-top: 76px; padding-bottom: 76px; }
}