:root {
  --color-page-ground: var(--reader-ground, #e7e4dd);
  --color-page-ink: var(--reader-ink, #23211e);
  --color-page-soft: var(--reader-ink-soft, #6e6a63);
  --color-page-clay: var(--reader-clay, #a9673f);
  --color-page-line: color-mix(in srgb, var(--color-page-ink) 15%, transparent);
  --color-page-paper: color-mix(in srgb, var(--color-page-ground) 72%, #fff);
  --color-page-navy: var(--navy, #0c2340);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body.color-system-page {
  margin: 0;
  padding: 0;
  overflow-x: hidden;
  background: var(--color-page-ground);
  color: var(--color-page-ink);
  font-family: var(--font-body, "Avenir Next", Avenir, system-ui, sans-serif);
  font-size: clamp(1rem, .4vw + .94rem, 1.15rem);
  line-height: 1.62;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

.color-system-page a { color: inherit; }
.color-system-page img { display: block; max-width: 100%; }
.color-system-page p { margin: 0 0 1.15em; }
.color-system-page strong { font-weight: 650; }

.skip-link {
  position: fixed;
  z-index: 100;
  top: .75rem;
  left: .75rem;
  padding: .7rem 1rem;
  background: var(--color-page-navy);
  color: #fff;
  transform: translateY(-180%);
}
.skip-link:focus { transform: translateY(0); }

.color-topbar {
  position: relative;
  z-index: 5;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: min(1360px, calc(100% - 2 * clamp(20px, 4vw, 64px)));
  margin-inline: auto;
  padding-block: clamp(1.2rem, 2.5vw, 2rem);
  border-bottom: 1px solid var(--color-page-line);
}

.color-brand {
  font-size: .72rem;
  font-weight: 750;
  letter-spacing: .18em;
  text-decoration: none;
  text-transform: uppercase;
}

.color-topbar nav ul {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: .35rem 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.color-topbar nav a {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--color-page-soft);
  font-size: .78rem;
  font-weight: 650;
  text-decoration: none;
}

.color-topbar nav a:hover,
.color-topbar nav a:focus-visible { color: var(--color-page-ink); }

.color-hero {
  position: relative;
  isolation: isolate;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, .96fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 7rem);
  width: min(1360px, calc(100% - 2 * clamp(20px, 4vw, 64px)));
  min-height: min(820px, calc(100svh - 88px));
  margin-inline: auto;
  padding-block: clamp(4rem, 9vw, 8rem);
}

.color-hero::before {
  content: "";
  position: absolute;
  z-index: -1;
  inset: 7% -18vw 8% 56%;
  background:
    radial-gradient(circle at 45% 34%, rgba(231, 206, 146, .5), transparent 22%),
    radial-gradient(circle at 70% 68%, rgba(169, 103, 63, .24), transparent 26%);
  filter: blur(2px);
}

.color-eyebrow {
  margin: 0 0 .85rem;
  color: var(--color-page-clay);
  font-size: .7rem;
  font-weight: 750;
  letter-spacing: .22em;
  text-transform: uppercase;
}

.color-hero h1,
.color-section h2,
.companion-module h2,
.shop-module h2 {
  margin: 0;
  font-family: var(--font-grotesque, var(--font-body, "Avenir Next", sans-serif));
  font-weight: 800;
  letter-spacing: -.055em;
  line-height: .9;
  text-transform: lowercase;
  text-wrap: balance;
}

.color-hero h1 { font-size: clamp(3.8rem, 9.2vw, 9.4rem); }

.color-hero .hero-lead {
  max-width: 29ch;
  margin-top: clamp(1.5rem, 3vw, 2.6rem);
  font-family: var(--font-display, Didot, Georgia, serif);
  font-size: clamp(1.35rem, 2.4vw, 2.1rem);
  line-height: 1.28;
}

.possibility-copy {
  max-width: 62ch;
  padding-top: 1.3rem;
  border-top: 1px solid var(--color-page-line);
}

.possibility-copy b {
  display: block;
  margin-bottom: .35rem;
  color: var(--color-page-navy);
  font-size: clamp(1.05rem, 1.6vw, 1.35rem);
}

.possibility-copy small {
  display: block;
  color: var(--color-page-soft);
  font-size: .78rem;
  line-height: 1.55;
}

.hero-product-stage {
  position: relative;
  min-height: clamp(480px, 57vw, 700px);
}

.hero-product-stage::before {
  content: "";
  position: absolute;
  inset: 10% 7% 5%;
  border: 1px solid color-mix(in srgb, var(--color-page-ink) 10%, transparent);
  background: color-mix(in srgb, var(--color-page-paper) 76%, transparent);
  transform: rotate(.75deg);
}

.hero-tube {
  position: absolute;
  bottom: 4%;
  width: 45%;
  filter: drop-shadow(0 28px 23px rgba(12, 35, 64, .16));
}

.hero-tube--one { left: 3%; transform: rotate(-8deg); }
.hero-tube--two { left: 28%; z-index: 2; transform: translateY(-7%) rotate(1deg); }
.hero-tube--three { right: 1%; transform: rotate(8deg); }

.hero-caption {
  position: absolute;
  right: 4%;
  bottom: 0;
  z-index: 3;
  max-width: 24ch;
  padding: .55rem .75rem;
  background: color-mix(in srgb, var(--color-page-ground) 90%, transparent);
  color: var(--color-page-soft);
  font-size: .68rem;
  line-height: 1.45;
}

.section-rule {
  width: min(1360px, calc(100% - 2 * clamp(20px, 4vw, 64px)));
  height: 1px;
  margin: 0 auto;
  border: 0;
  background: var(--color-page-line);
}

.color-section {
  width: min(1180px, calc(100% - 2 * clamp(20px, 5vw, 72px)));
  margin-inline: auto;
  padding-block: clamp(5rem, 11vw, 10rem);
}

.color-section h2,
.companion-module h2,
.shop-module h2 { font-size: clamp(3rem, 7.6vw, 7rem); }

.section-intro {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(300px, 1.08fr);
  gap: clamp(2rem, 7vw, 7rem);
  align-items: start;
}

.section-copy {
  max-width: 62ch;
  padding-top: .4rem;
}

.section-copy .lead {
  color: var(--color-page-ink);
  font-size: clamp(1.2rem, 2vw, 1.55rem);
  line-height: 1.42;
}

.system-diagram {
  display: grid;
  grid-template-columns: repeat(3, minmax(210px, 1fr));
  gap: 1px;
  min-width: 740px;
  margin-top: clamp(2.8rem, 6vw, 5.5rem);
  overflow: hidden;
  border: 1px solid var(--color-page-line);
  background: var(--color-page-line);
}

.system-step {
  min-height: 290px;
  padding: clamp(1.5rem, 3vw, 2.4rem);
  background: var(--color-page-paper);
}

.system-step .step-no {
  display: block;
  margin-bottom: 3.5rem;
  color: var(--color-page-clay);
  font-family: var(--font-display, Didot, Georgia, serif);
  font-size: 2.8rem;
}

.system-step h3 {
  margin: 0 0 .7rem;
  font-size: 1.3rem;
  line-height: 1.15;
}

.system-step p { color: var(--color-page-soft); font-size: .93rem; }

.claim-band {
  margin-top: clamp(2.8rem, 6vw, 5.5rem);
  padding: clamp(2rem, 5vw, 4.5rem);
  background: var(--color-page-navy);
  color: #f7f1e7;
}

.claim-band .big {
  display: block;
  max-width: 12ch;
  margin-bottom: 1.2rem;
  font-family: var(--font-display, Didot, Georgia, serif);
  font-size: clamp(3.4rem, 8vw, 7.5rem);
  line-height: .86;
  letter-spacing: -.04em;
}

.claim-band p { max-width: 70ch; color: #e5dfd4; }
.claim-band a { color: var(--gold-light, #e7ce92); }

.wide-scroll {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
  scrollbar-color: var(--color-page-clay) transparent;
}

.layer-math {
  display: grid;
  grid-template-columns: repeat(7, auto);
  align-items: center;
  gap: 1.2rem;
  min-width: 900px;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding: 2rem;
  border-block: 1px solid var(--color-page-line);
}

.math-choice {
  width: 150px;
  padding: 1.25rem .75rem;
  border-top: 4px solid var(--color-page-line);
  color: var(--color-page-soft);
  font-size: .77rem;
  line-height: 1.45;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .1em;
}

.math-choice--a { border-color: #a85439; }
.math-choice--b { border-color: #a66f78; }
.math-choice--c { border-color: #b9395d; }
.math-choice--result { border-color: var(--color-page-ink); }

.math-choice strong {
  display: block;
  color: var(--color-page-ink);
  font-family: var(--font-display, Didot, Georgia, serif);
  font-size: 3.2rem;
  font-weight: 600;
  letter-spacing: -.04em;
  line-height: 1;
}

.math-symbol { color: var(--color-page-clay); font-size: 2rem; }

.catalogue-note,
.source-note {
  margin-top: 2rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-page-line);
  color: var(--color-page-soft);
  font-size: .76rem;
  line-height: 1.6;
}

.wardrobe-contrast {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 1px;
  margin-top: clamp(3rem, 7vw, 6rem);
  background: var(--color-page-line);
  border: 1px solid var(--color-page-line);
}

.wardrobe-contrast article { min-height: 260px; padding: clamp(2rem, 4vw, 3.5rem); background: var(--color-page-paper); }
.wardrobe-contrast article:last-child { background: var(--color-page-navy); color: #f7f1e7; }
.wardrobe-contrast h3 { margin: 0 0 1rem; font-size: clamp(1.4rem, 2.6vw, 2.2rem); line-height: 1.1; }
.wardrobe-contrast p { color: inherit; }
.wardrobe-contrast .owner-estimate { color: var(--gold-light, #e7ce92); font-size: .84rem; }

.shade-control {
  position: relative;
  margin-top: clamp(3rem, 7vw, 6rem);
  padding: clamp(2.3rem, 6vw, 6rem);
  overflow: hidden;
  background:
    linear-gradient(115deg, rgba(12, 35, 64, .93), rgba(12, 35, 64, .72)),
    linear-gradient(90deg, #5f2742, #b36c62, #d8a18b, #9c5361);
  color: #f7f1e7;
}

.shade-control::after {
  content: "";
  position: absolute;
  right: -5%;
  bottom: -45%;
  width: 58%;
  aspect-ratio: 1;
  border: 1px solid rgba(255, 255, 255, .3);
  border-radius: 50%;
}

.shade-control blockquote {
  position: relative;
  z-index: 1;
  max-width: 22ch;
  margin: 0;
  font-family: var(--font-display, Didot, Georgia, serif);
  font-size: clamp(2rem, 4.6vw, 4.2rem);
  line-height: 1.13;
}

.shade-control p { position: relative; z-index: 1; max-width: 62ch; margin-top: 1.5rem; color: #e5dfd4; }

.recipe-rail {
  display: flex;
  gap: 1rem;
  min-width: max-content;
  padding: clamp(3rem, 6vw, 5rem) max(0px, calc((100vw - 1180px) / 2)) 1.25rem;
}

.recipe-card {
  display: grid;
  grid-template-rows: 150px auto;
  width: min(78vw, 350px);
  min-height: 460px;
  border: 1px solid var(--color-page-line);
  background: var(--color-page-paper);
}

.recipe-swatch { display: grid; grid-template-columns: repeat(3, 1fr); }
.recipe-swatch span { position: relative; }
.recipe-swatch span::after {
  content: attr(data-layer);
  position: absolute;
  left: .65rem;
  bottom: .55rem;
  color: rgba(255, 255, 255, .9);
  font-size: .62rem;
  font-weight: 750;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.recipe-card--rose .recipe-swatch span:nth-child(1) { background: #d2a0a8; }
.recipe-card--rose .recipe-swatch span:nth-child(2) { background: #a96875; }
.recipe-card--rose .recipe-swatch span:nth-child(3) { background: #70414e; }
.recipe-card--warm .recipe-swatch span:nth-child(1) { background: #d5a07f; }
.recipe-card--warm .recipe-swatch span:nth-child(2) { background: #ae694a; }
.recipe-card--warm .recipe-swatch span:nth-child(3) { background: #754331; }
.recipe-card--cool .recipe-swatch span:nth-child(1) { background: #cc93ad; }
.recipe-card--cool .recipe-swatch span:nth-child(2) { background: #9a5578; }
.recipe-card--cool .recipe-swatch span:nth-child(3) { background: #653348; }

.recipe-body { padding: 1.6rem; }
.recipe-body h3 { margin: 0 0 .4rem; font-family: var(--font-display, Didot, Georgia, serif); font-size: 1.8rem; line-height: 1.1; }
.recipe-body ol { margin: 1.3rem 0 0; padding: 0; list-style: none; counter-reset: layers; }
.recipe-body li { counter-increment: layers; padding: .62rem 0; border-top: 1px solid var(--color-page-line); font-size: .9rem; }
.recipe-body li::before { content: "Layer " counter(layers) " · "; color: var(--color-page-clay); font-weight: 750; }

.recipe-caveat {
  width: min(1180px, calc(100% - 2 * clamp(20px, 5vw, 72px)));
  margin: 1.5rem auto 0;
  color: var(--color-page-soft);
  font-size: .78rem;
  line-height: 1.6;
}

.companion-module,
.shop-module {
  width: min(1180px, calc(100% - 2 * clamp(20px, 5vw, 72px)));
  margin-inline: auto;
  padding-block: clamp(5rem, 11vw, 10rem);
}

.companion-grid,
.shop-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  margin-top: clamp(3rem, 6vw, 5rem);
  border: 1px solid var(--color-page-line);
  background: var(--color-page-line);
}

.companion-card,
.shop-card { min-height: 260px; padding: clamp(1.7rem, 3vw, 2.6rem); background: var(--color-page-paper); }
.companion-card .role,
.shop-card .role { display: block; margin-bottom: 3rem; color: var(--color-page-clay); font-size: .68rem; font-weight: 750; letter-spacing: .16em; text-transform: uppercase; }
.companion-card h3,
.shop-card h3 { margin: 0 0 .85rem; font-size: 1.25rem; line-height: 1.15; }
.companion-card p,
.shop-card p { color: var(--color-page-soft); font-size: .9rem; }

.shop-module { width: auto; max-width: none; padding-inline: max(clamp(20px, 5vw, 72px), calc((100vw - 1180px) / 2)); background: var(--color-page-navy); color: #f7f1e7; }
.shop-grid { border-color: rgba(255, 255, 255, .2); background: rgba(255, 255, 255, .2); }
.shop-card { background: rgba(255, 255, 255, .06); }
.shop-card p { color: #d7d6d3; }
.shop-card .role { color: var(--gold-light, #e7ce92); }
.shop-card a {
  display: inline-flex;
  align-items: center;
  min-height: 48px;
  margin-top: 1.5rem;
  padding: .75rem 1rem;
  border: 1px solid rgba(231, 206, 146, .65);
  color: #fff;
  font-size: .83rem;
  font-weight: 700;
  text-decoration: none;
}
.shop-card a:hover,
.shop-card a:focus-visible { background: rgba(255, 255, 255, .1); border-color: #e7ce92; }

.color-footer {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, .8fr);
  gap: 2rem;
  width: min(1180px, calc(100% - 2 * clamp(20px, 5vw, 72px)));
  margin-inline: auto;
  padding-block: clamp(3rem, 6vw, 5rem);
  color: var(--color-page-soft);
  font-size: .75rem;
}

.color-footer nav ul { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: .5rem 1.1rem; margin: 0; padding: 0; list-style: none; }
.color-footer a { min-height: 44px; display: inline-flex; align-items: center; }

:focus-visible { outline: 2px solid var(--color-page-clay); outline-offset: 4px; }

@media (max-width: 900px) {
  .color-hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-product-stage { width: min(620px, 100%); margin-inline: auto; }
  .section-intro { grid-template-columns: 1fr; }
  .companion-grid,
  .shop-grid { grid-template-columns: 1fr; }
  .companion-card,
  .shop-card { min-height: auto; }
}

@media (max-width: 680px) {
  .color-topbar { align-items: flex-start; }
  .color-topbar nav ul { display: none; }
  .color-hero h1 { font-size: clamp(3.5rem, 18vw, 5.2rem); }
  .hero-product-stage { min-height: 430px; }
  .wardrobe-contrast { grid-template-columns: 1fr; }
  .color-footer { grid-template-columns: 1fr; }
  .color-footer nav ul { justify-content: flex-start; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

@media print {
  .color-topbar,
  .shop-module { display: none; }
  .color-section,
  .companion-module { break-inside: avoid; }
}