:root {
  --paper: #ffffff;
  --paper-soft: #f7f7f5;
  --paper-deep: #eff0ed;
  --ink: #171a1e;
  --ink-soft: #4d535a;
  --ink-muted: #666c72;
  --line: #dedfdb;
  --line-strong: #b9bdbd;
  --graphite: #25292e;
  --graphite-2: #31363c;
  --white: #ffffff;
  --font: "Segoe UI", Inter, system-ui, -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
  --wrap: 1180px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
}

*, *::before, *::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body, button { font-family: var(--font); }

a { color: inherit; text-decoration: none; }

img, svg { display: block; }

::selection { background: #dfe1dc; }

:focus-visible {
  outline: 3px solid #59636c;
  outline-offset: 4px;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 100;
  padding: 0.65rem 0.85rem;
  color: var(--white);
  background: var(--graphite);
  transform: translateY(-180%);
}

.skip-link:focus { transform: translateY(0); }

.wrap {
  width: min(100%, var(--wrap));
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1.35;
  text-transform: uppercase;
}

.eyebrow::before {
  width: 1.75rem;
  height: 1px;
  background: currentColor;
  content: "";
}

h1, h2, h3, p { margin-top: 0; }

h1, h2, h3 {
  color: var(--ink);
  font-weight: 620;
  letter-spacing: -0.025em;
}

h1 {
  max-width: 14ch;
  margin-bottom: 0;
  font-size: clamp(2.35rem, 5vw, 4.25rem);
  line-height: 0.99;
}

h2 {
  margin-bottom: 1rem;
  font-size: clamp(1.75rem, 3.2vw, 2.65rem);
  line-height: 1.08;
}

h3 {
  margin-bottom: 0.6rem;
  font-size: 1.08rem;
  line-height: 1.35;
}

p { color: var(--ink-soft); }

.lead {
  max-width: 62ch;
  color: var(--ink-soft);
  font-size: clamp(1.08rem, 1.7vw, 1.27rem);
  line-height: 1.55;
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  border-bottom: 1px solid var(--line-strong);
  color: var(--ink);
  font-size: 0.93rem;
  font-weight: 650;
  line-height: 1.7;
}

.text-link::after { content: "\2192"; transition: transform 160ms ease; }
.text-link.external::after { content: "\2197"; }
.text-link:hover { border-color: var(--ink); }
.text-link:hover::after { transform: translateX(0.18rem); }

.button {
  display: inline-flex;
  min-height: 2.8rem;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.05rem;
  border: 1px solid var(--graphite);
  background: var(--graphite);
  color: var(--white);
  font-size: 0.88rem;
  font-weight: 650;
  line-height: 1.2;
}

.button:hover { background: #111417; border-color: #111417; }

.button-secondary {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink);
}

.button-secondary:hover { background: var(--paper-soft); border-color: var(--ink); }

.actions { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2rem; }

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.header-inner {
  position: relative;
  display: flex;
  min-height: 74px;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.brand { display: inline-flex; align-items: center; gap: 0.75rem; }
.brand svg { width: 29px; height: 29px; flex: none; }
.brand-text { display: grid; line-height: 1.12; }
.brand-name { font-size: 1rem; font-weight: 700; letter-spacing: -0.015em; }
.brand-sub { color: var(--ink-muted); font-size: 0.61rem; font-weight: 650; letter-spacing: 0.11em; text-transform: uppercase; }

.primary-nav { display: flex; align-items: stretch; align-self: stretch; gap: clamp(1.1rem, 2.6vw, 2.2rem); }
.primary-nav a {
  display: flex;
  align-items: center;
  border-bottom: 2px solid transparent;
  color: var(--ink-soft);
  font-size: 0.86rem;
  font-weight: 560;
}
.primary-nav a:hover, .primary-nav a[aria-current="page"] { border-bottom-color: var(--ink); color: var(--ink); }

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line-strong);
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
}
.menu-toggle span, .menu-toggle::before, .menu-toggle::after {
  display: block;
  width: 17px;
  height: 1px;
  margin: 4px auto;
  background: currentColor;
  content: "";
}

/* Page headers */
.hero {
  padding-top: clamp(4.5rem, 10vw, 8rem);
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(18rem, 0.85fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: end;
}

.hero .eyebrow { margin-bottom: 1.6rem; }
.hero-side { padding-bottom: 0.25rem; }
.hero-side .lead { margin-bottom: 0; }

.facts {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin: clamp(3.75rem, 8vw, 6.5rem) 0 0;
  padding: 0;
  border-top: 1px solid var(--line-strong);
}

.fact {
  min-width: 0;
  padding: 1.3rem 1.35rem 1.65rem;
  border-right: 1px solid var(--line);
}
.fact:first-child { padding-left: 0; }
.fact:last-child { border-right: 0; padding-right: 0; }
.fact dt { margin-bottom: 0.35rem; color: var(--ink-muted); font-size: 0.66rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; }
.fact dd { margin: 0; color: var(--ink); font-size: 0.88rem; line-height: 1.45; }

.page-hero h1 { max-width: 15ch; }
.page-hero .facts { margin-top: clamp(3.5rem, 7vw, 5.5rem); }

/* Sections */
.section { padding-block: clamp(4.5rem, 9vw, 7.5rem); border-bottom: 1px solid var(--line); }
.section-soft { background: var(--paper-soft); }
.section-dark { background: var(--graphite); color: var(--white); }
.section-dark h2, .section-dark h3, .section-dark p, .section-dark .eyebrow, .section-dark .text-link { color: var(--white); }
.section-dark p { color: #c9cdd0; }
.section-dark .eyebrow { color: #aeb5ba; }
.section-dark .text-link { border-color: #747d84; }
.section-dark .button-secondary { border-color: #747d84; color: var(--white); }
.section-dark .button-secondary:hover { border-color: var(--white); background: var(--white); color: var(--ink); }

.section-intro {
  display: grid;
  grid-template-columns: minmax(12rem, 0.42fr) minmax(0, 1fr);
  gap: clamp(2rem, 7vw, 7rem);
  margin-bottom: clamp(2.75rem, 6vw, 4.5rem);
}
.section-intro-copy { max-width: 700px; }
.section-intro-copy p:last-child { margin-bottom: 0; }

.rule-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  border-top: 1px solid var(--line-strong);
}

.rule-card {
  min-width: 0;
  padding: 1.65rem 1.75rem 1.8rem 0;
  border-right: 1px solid var(--line);
}
.rule-card:not(:first-child) { padding-left: 1.75rem; }
.rule-card:last-child { border-right: 0; padding-right: 0; }
.rule-card .index { display: block; margin-bottom: 2.75rem; color: var(--ink-muted); font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em; }
.rule-card p { margin-bottom: 0; font-size: 0.92rem; }

.platform-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border: solid var(--line-strong);
  border-width: 1px 0;
}
.platform {
  min-height: 14rem;
  padding: 1.5rem;
  border-right: 1px solid var(--line);
}
.platform:first-child { padding-left: 0; }
.platform:last-child { border-right: 0; padding-right: 0; }
.platform-code { display: block; margin-bottom: 4.5rem; color: var(--ink-muted); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.7rem; letter-spacing: 0.08em; }
.platform p { margin-bottom: 0; font-size: 0.9rem; }

/* Lifecycle */
.process {
  position: relative;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  margin-top: 3rem;
}
.process::before { position: absolute; top: 0.4rem; right: 0; left: 0; height: 1px; background: var(--line-strong); content: ""; }
.process-step { position: relative; padding: 1.5rem 1rem 0 0; }
.process-step::before { position: absolute; top: 0; left: 0; width: 0.8rem; height: 0.8rem; border: 2px solid var(--paper); background: var(--graphite); box-shadow: 0 0 0 1px var(--graphite); content: ""; }
.process-step span { display: block; margin-bottom: 0.35rem; color: var(--ink-muted); font-size: 0.68rem; font-weight: 700; letter-spacing: 0.1em; }
.process-step strong { font-size: 0.87rem; font-weight: 650; }

.lifecycle { border-top: 1px solid var(--line-strong); }
.lifecycle-stage {
  display: grid;
  grid-template-columns: 5rem minmax(12rem, 0.48fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  padding-block: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--line);
}
.lifecycle-stage:last-child { border-bottom: 0; padding-bottom: 0; }
.stage-number { color: var(--ink-muted); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.76rem; letter-spacing: 0.08em; }
.lifecycle-stage h2 { font-size: clamp(1.55rem, 2.4vw, 2.15rem); }
.stage-copy > p { max-width: 66ch; }
.checklist { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 1.75rem 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.checklist li { padding: 0.65rem 1rem 0.65rem 0; border-bottom: 1px solid var(--line); color: var(--ink-soft); font-size: 0.85rem; }
.checklist li:nth-child(even) { padding-left: 1rem; border-left: 1px solid var(--line); }

.matrix { width: 100%; border-collapse: collapse; border-top: 1px solid var(--line-strong); }
.matrix th, .matrix td { padding: 1.15rem 1rem; border-bottom: 1px solid var(--line); text-align: left; vertical-align: top; }
.matrix th { width: 22%; padding-left: 0; color: var(--ink); font-size: 0.85rem; font-weight: 650; }
.matrix td { padding-right: 0; color: var(--ink-soft); font-size: 0.9rem; }

/* Product */
.product-card {
  display: grid;
  grid-template-columns: minmax(16rem, 0.75fr) minmax(0, 1.25fr);
  border: 1px solid var(--line-strong);
  background: var(--paper);
}
.product-identity { display: flex; min-height: 21rem; flex-direction: column; justify-content: space-between; padding: clamp(1.75rem, 4vw, 3rem); border-right: 1px solid var(--line); background: var(--graphite); }
.product-identity .eyebrow { color: #aeb5ba; }
.product-identity h3 { max-width: 8ch; margin: 0; color: var(--white); font-size: clamp(2rem, 4vw, 3.25rem); }
.product-mark { display: grid; width: 3.25rem; height: 3.25rem; place-items: center; border: 1px solid #676f75; color: var(--white); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.78rem; }
.product-body { padding: clamp(1.75rem, 4vw, 3rem); }
.product-body .lead { color: var(--ink); }
.product-meta { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); margin: 2rem 0; padding: 0; border-top: 1px solid var(--line); }
.product-meta div { padding: 0.9rem 0; border-bottom: 1px solid var(--line); }
.product-meta div:nth-child(even) { padding-left: 1rem; border-left: 1px solid var(--line); }
.product-meta dt { color: var(--ink-muted); font-size: 0.65rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; }
.product-meta dd { margin: 0.15rem 0 0; color: var(--ink); font-size: 0.87rem; }

/* Principles */
.principles-list { border-top: 1px solid var(--line-strong); }
.principle-row {
  display: grid;
  grid-template-columns: 4.5rem minmax(13rem, 0.55fr) minmax(0, 1fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  padding-block: clamp(2.25rem, 5vw, 3.75rem);
  border-bottom: 1px solid var(--line);
}
.principle-row:last-child { border-bottom: 0; }
.principle-number { color: var(--ink-muted); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.75rem; }
.principle-row h2 { margin: 0; font-size: clamp(1.45rem, 2.3vw, 2rem); }
.practice { margin: 1.25rem 0 0; padding: 0; list-style: none; }
.practice li { position: relative; padding: 0.55rem 0 0.55rem 1.15rem; border-top: 1px solid var(--line); color: var(--ink-soft); font-size: 0.87rem; }
.practice li::before { position: absolute; top: 1.18rem; left: 0; width: 0.38rem; height: 1px; background: var(--ink); content: ""; }

/* Company and contact */
.split-copy { display: grid; grid-template-columns: minmax(0, 0.7fr) minmax(0, 1.3fr); gap: clamp(2.5rem, 8vw, 8rem); }
.split-copy .lead { color: var(--ink); }
.prose { max-width: 66ch; }
.prose p:last-child { margin-bottom: 0; }

.capability-list { margin: 0; padding: 0; border-top: 1px solid var(--line-strong); list-style: none; }
.capability-list li { display: grid; grid-template-columns: 2.5rem minmax(0, 1fr); gap: 1rem; padding: 1rem 0; border-bottom: 1px solid var(--line); }
.capability-list .index { color: var(--ink-muted); font-family: ui-monospace, SFMono-Regular, Consolas, monospace; font-size: 0.72rem; }
.capability-list strong { display: block; margin-bottom: 0.15rem; font-size: 0.92rem; }
.capability-list p { margin: 0; font-size: 0.86rem; }

.contact-layout { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(20rem, 1.2fr); gap: clamp(3rem, 8vw, 8rem); align-items: start; }
.contact-panel { padding: clamp(1.5rem, 4vw, 2.5rem); border: 1px solid var(--line-strong); background: var(--paper); }
.email-link { display: inline-block; margin: 1rem 0 1.5rem; border-bottom: 2px solid var(--line-strong); color: var(--ink); font-size: clamp(1.2rem, 3vw, 1.75rem); font-weight: 650; letter-spacing: -0.025em; overflow-wrap: anywhere; }
.copy-button { padding: 0.55rem 0.8rem; border: 1px solid var(--line-strong); background: var(--paper); color: var(--ink-soft); font-size: 0.78rem; font-weight: 650; cursor: pointer; }
.copy-button:hover, .copy-button.is-copied { border-color: var(--ink); color: var(--ink); }
.enquiry-list { margin: 2rem 0 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.enquiry-list li { display: grid; grid-template-columns: 1fr auto; gap: 1rem; padding: 0.8rem 0; border-bottom: 1px solid var(--line); color: var(--ink-muted); font-size: 0.82rem; }
.enquiry-list strong { color: var(--ink); font-size: 0.88rem; }

.cta {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: end;
}
.cta h2 { max-width: 19ch; margin-bottom: 0; }

/* Footer */
.site-footer { padding-block: 3.5rem 2.25rem; background: var(--paper-deep); }
.footer-top { display: grid; grid-template-columns: minmax(13rem, 1fr) auto; gap: 3rem; padding-bottom: 2.75rem; }
.footer-brand p { max-width: 30ch; margin: 0.85rem 0 0; color: var(--ink-soft); font-size: 0.88rem; }
.footer-nav { display: grid; grid-template-columns: repeat(2, minmax(8rem, auto)); gap: 0.6rem 2.5rem; }
.footer-nav a { color: var(--ink-soft); font-size: 0.85rem; }
.footer-nav a:hover { color: var(--ink); text-decoration: underline; text-underline-offset: 0.25rem; }
.footer-bottom { display: flex; justify-content: space-between; gap: 2rem; padding-top: 1.2rem; border-top: 1px solid var(--line-strong); color: var(--ink-muted); font-size: 0.75rem; }

@media (max-width: 860px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: calc(100% + 1px);
    right: var(--gutter);
    left: var(--gutter);
    display: grid;
    gap: 0;
    align-self: auto;
    padding: 0.5rem 1rem;
    border: 1px solid var(--line-strong);
    background: var(--paper);
    box-shadow: 0 12px 22px rgba(23, 26, 30, 0.08);
  }
  .primary-nav[hidden] { display: none; }
  .primary-nav a { min-height: 3rem; border-bottom: 1px solid var(--line); }
  .primary-nav a:last-child { border-bottom: 0; }
  .primary-nav a:hover, .primary-nav a[aria-current="page"] { border-bottom-color: var(--line); }

  .hero-grid { grid-template-columns: 1fr; align-items: start; gap: 2rem; }
  .hero-side { max-width: 680px; }
  .facts { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .fact:nth-child(2) { border-right: 0; padding-right: 0; }
  .fact:nth-child(3) { padding-left: 0; border-top: 1px solid var(--line); }
  .fact:nth-child(4) { border-top: 1px solid var(--line); }
  .section-intro { grid-template-columns: 1fr; gap: 1.5rem; }
  .rule-grid { grid-template-columns: 1fr; }
  .rule-card, .rule-card:not(:first-child) { padding: 1.5rem 0; border-right: 0; border-bottom: 1px solid var(--line); }
  .rule-card:last-child { border-bottom: 0; }
  .rule-card .index { margin-bottom: 1rem; }
  .platform-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .platform { min-height: 12rem; }
  .platform:nth-child(2) { border-right: 0; padding-right: 0; }
  .platform:nth-child(3) { padding-left: 0; border-top: 1px solid var(--line); }
  .platform:nth-child(4) { border-top: 1px solid var(--line); }
  .lifecycle-stage, .principle-row { grid-template-columns: 3.5rem minmax(10rem, 0.55fr) minmax(0, 1fr); gap: 1.5rem; }
  .product-card { grid-template-columns: 1fr; }
  .product-identity { min-height: 15rem; border-right: 0; border-bottom: 1px solid var(--line); }
  .split-copy { grid-template-columns: 1fr; gap: 2rem; }
  .contact-layout { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  h1 { font-size: clamp(2.2rem, 11vw, 3rem); }
  .brand-sub { display: none; }
  .hero { padding-top: 3.75rem; }
  .facts { grid-template-columns: 1fr; }
  .fact, .fact:first-child, .fact:nth-child(2), .fact:nth-child(3), .fact:nth-child(4) { padding: 0.95rem 0; border-right: 0; border-top: 1px solid var(--line); }
  .fact:first-child { border-top: 0; }
  .process { grid-template-columns: 1fr; gap: 0; }
  .process::before { top: 0; bottom: 0; left: 0.4rem; width: 1px; height: auto; }
  .process-step { padding: 0 0 1.4rem 2rem; }
  .process-step::before { top: 0.32rem; }
  .platform-grid { grid-template-columns: 1fr; }
  .platform, .platform:first-child, .platform:nth-child(2), .platform:nth-child(3), .platform:nth-child(4) { min-height: 0; padding: 1.25rem 0; border-right: 0; border-top: 1px solid var(--line); }
  .platform:first-child { border-top: 0; }
  .platform-code { margin-bottom: 1.5rem; }
  .lifecycle-stage, .principle-row { grid-template-columns: 2.5rem minmax(0, 1fr); }
  .stage-copy, .principle-copy { grid-column: 2; }
  .checklist { grid-template-columns: 1fr; }
  .checklist li:nth-child(even) { padding-left: 0; border-left: 0; }
  .matrix, .matrix tbody, .matrix tr, .matrix th, .matrix td { display: block; }
  .matrix tr { padding: 1rem 0; border-bottom: 1px solid var(--line); }
  .matrix th, .matrix td { width: 100%; padding: 0; border: 0; }
  .matrix td { margin-top: 0.35rem; }
  .product-meta { grid-template-columns: 1fr; }
  .product-meta div:nth-child(even) { padding-left: 0; border-left: 0; }
  .cta { grid-template-columns: 1fr; align-items: start; }
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
  .footer-nav { grid-template-columns: repeat(2, 1fr); }
  .footer-bottom { flex-direction: column; gap: 0.35rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { scroll-behavior: auto !important; transition-duration: 0.01ms !important; }
}