/* ==========================================================================
   Groundwork: styles
   Warm neutrals, one accent (deep green). Print-like grid, restrained motion.
   All text/background pairs checked for WCAG AA.
   ========================================================================== */

:root {
  /* Colour */
  --paper: #F6F3EE;        /* page background */
  --stone: #ECE7DF;        /* tinted sections */
  --line: #D6CFC3;         /* hairlines */
  --line-strong: #BFB7A9;
  --ink: #1F1E1C;          /* charcoal text, 15.6:1 on paper */
  --muted: #595650;        /* secondary text, 6.5:1 on paper, 5.9:1 on stone */
  --green: #1E4D3A;        /* accent, 9.6:1 on paper */
  --green-deep: #163B2C;
  --green-tint: #C8D7CE;   /* light text on green, 6.4:1 */
  --charcoal: #232220;
  --on-dark-muted: #BAB4A9;/* 7.6:1 on charcoal */
  --warn: #FFD7A1;         /* error text on green, 8:1 */

  /* Type */
  --font-head: "Schibsted Grotesk", "Helvetica Neue", Arial, sans-serif;
  --font-body: "Source Serif 4", Georgia, "Times New Roman", serif;

  --step--1: clamp(0.84rem, 0.82rem + 0.1vw, 0.9rem);
  --step-0: clamp(1.06rem, 1.02rem + 0.2vw, 1.19rem);
  --step-1: clamp(1.25rem, 1.18rem + 0.35vw, 1.45rem);
  --step-2: clamp(1.5rem, 1.35rem + 0.75vw, 2rem);
  --step-3: clamp(1.9rem, 1.6rem + 1.5vw, 2.9rem);
  --step-4: clamp(2.5rem, 1.9rem + 3vw, 4.6rem);
  --step-5: clamp(2.6rem, 1.6rem + 4.6vw, 5.9rem);

  /* Space */
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
  --section: clamp(4.5rem, 10vw, 8.5rem);
  --max: 76rem;
  --radius: 2px;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* Reset ------------------------------------------------------------------ */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 5rem;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--step-0);
  line-height: 1.6;
  font-optical-sizing: auto;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
ul, ol { padding: 0; list-style: none; }
input, button, select, textarea { font: inherit; color: inherit; }
button { cursor: pointer; }
address { font-style: normal; }
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.02em;
  text-wrap: balance;
}
p { text-wrap: pretty; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 0.18em; }
:focus-visible {
  outline: 3px solid var(--green);
  outline-offset: 3px;
  border-radius: var(--radius);
}
.section--dark :focus-visible,
.section--green :focus-visible { outline-color: var(--paper); }

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--font-head);
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus { top: 1rem; }

/* Layout ----------------------------------------------------------------- */
.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.section { padding-block: var(--section); }
.section--tint { background: var(--stone); }
.section--dark { background: var(--charcoal); color: var(--paper); }
.section--green { background: var(--green); color: var(--paper); }

.section__head {
  max-width: 46rem;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}
.section__head h2,
.split__aside h2 { font-size: var(--step-3); }

.split {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
}
@media (min-width: 60rem) {
  .split { grid-template-columns: 5fr 7fr; align-items: start; }
  .split__aside { position: sticky; top: 7rem; }
}

/* Shared bits ------------------------------------------------------------ */
.eyebrow,
.label {
  font-family: var(--font-head);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.3;
}
.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  color: var(--green);
}
.eyebrow::before {
  content: "";
  width: 2rem;
  height: 3px;
  background: currentColor;
  flex: none;
}
.eyebrow--light { color: var(--green-tint); }
.section--dark .eyebrow--light { color: var(--on-dark-muted); }
.label { color: var(--muted); }

.accent { color: var(--green); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 3.25rem;
  padding: 0.85rem 1.6rem;
  border: 2px solid var(--green);
  border-radius: var(--radius);
  background: var(--green);
  color: var(--paper);
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.2;
  text-decoration: none;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.btn:hover { background: var(--green-deep); border-color: var(--green-deep); }
.btn:active { transform: translateY(1px); }
.btn--small { min-height: 2.6rem; padding: 0.5rem 1rem; font-size: 0.95rem; white-space: nowrap; }
@media (max-width: 23rem) {
  .btn--small { padding-inline: 0.75rem; font-size: 0.88rem; }
  .logo { font-size: 1.15rem; }
}
.btn--light { background: var(--paper); border-color: var(--paper); color: var(--green); }
.btn--light:hover { background: #fff; border-color: #fff; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: 0.7; cursor: progress; }

.text-link {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--green);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.3em;
  transition: text-underline-offset 0.2s var(--ease);
}
.text-link::after { content: " ↓"; }
.text-link:hover { text-underline-offset: 0.45em; }
.pricing__note .text-link::after { content: " →"; }
.text-link--back::after { content: none; }
.text-link--back::before { content: "← "; }

/* Header ----------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(246, 243, 238, 0.94);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s var(--ease);
}
@supports (backdrop-filter: blur(8px)) {
  .site-header { backdrop-filter: blur(8px); background: rgba(246, 243, 238, 0.86); }
}
.site-header.is-scrolled { border-bottom-color: var(--line); }
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: 4.25rem;
}
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  text-decoration: none;
}
.logo__mark { width: 1.35rem; height: 1.35rem; fill: var(--green); }
.site-nav { display: none; margin-left: auto; }
.site-nav ul { display: flex; gap: 2rem; }
.site-nav a {
  font-family: var(--font-head);
  font-size: 0.98rem;
  font-weight: 500;
  text-decoration: none;
  padding-block: 0.4rem;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 2px no-repeat;
  transition: background-size 0.25s var(--ease);
}
.site-nav a:hover { background-size: 100% 2px; }
@media (min-width: 64rem) {
  .site-nav { display: block; }
  .site-header__inner > .btn { margin-left: 0.5rem; }
}

/* 1. Hero ---------------------------------------------------------------- */
.hero {
  padding-top: clamp(3.5rem, 9vw, 7.5rem);
  padding-bottom: clamp(3rem, 7vw, 5.5rem);
}
.hero__title {
  max-width: 17ch;
  font-size: var(--step-5);
  font-weight: 800;
  line-height: 1.0;
  letter-spacing: -0.035em;
}
.hero__title .accent { display: inline; }
.hero__foot {
  display: grid;
  gap: 2rem;
  margin-top: clamp(2rem, 4vw, 3.25rem);
  padding-top: clamp(2rem, 4vw, 3rem);
  border-top: 2px solid var(--ink);
}
@media (min-width: 52rem) {
  .hero__foot { grid-template-columns: 7fr 5fr; align-items: center; gap: 4rem; }
}
.hero__sub {
  max-width: 36rem;
  font-size: var(--step-1);
  line-height: 1.5;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.75rem;
}
@media (min-width: 52rem) {
  .hero__actions { justify-content: flex-end; }
}
.hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 2rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  font-family: var(--font-head);
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--muted);
}
.hero__facts li { display: flex; align-items: center; gap: 0.6rem; }
.hero__facts li::before {
  content: "";
  width: 0.45rem;
  height: 0.45rem;
  background: var(--green);
  flex: none;
}

/* 2. Proof bar ----------------------------------------------------------- */
.proof {
  padding-block: clamp(2.5rem, 5vw, 3.5rem) clamp(3.5rem, 7vw, 5rem);
}
.proof__head {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--line);
}
.proof__note {
  font-family: var(--font-head);
  font-size: var(--step--1);
  color: var(--muted);
}
.proof__grid { display: grid; }
@media (min-width: 48rem) {
  .proof__grid { grid-template-columns: repeat(3, 1fr); }
}
.stat {
  padding-block: 1.75rem;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 48rem) {
  .stat { padding: 2rem 2rem 0.5rem; border-bottom: 0; border-left: 1px solid var(--line); }
  .stat:first-child { padding-left: 0; border-left: 0; }
}
.stat__num {
  font-family: var(--font-head);
  font-size: var(--step-4);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--green);
}
.stat__num span { font-size: 0.45em; letter-spacing: -0.02em; margin-left: 0.1em; }
.stat__label { margin-top: 0.75rem; max-width: 22rem; }
.stat__source {
  margin-top: 0.75rem;
  font-family: var(--font-head);
  font-size: var(--step--1);
  color: var(--muted);
}

/* 3. Ladder -------------------------------------------------------------- */
.ladder {
  display: grid;
  counter-reset: step;
  border-top: 2px solid var(--ink);
}
@media (min-width: 64rem) {
  .ladder { grid-template-columns: repeat(4, 1fr); }
}
@media (min-width: 40rem) and (max-width: 63.99rem) {
  .ladder { grid-template-columns: repeat(2, 1fr); }
  .ladder__step:nth-child(odd) { padding-right: 2rem; }
  .ladder__step:nth-child(even) { padding-left: 2rem; border-left: 1px solid var(--line); }
}
.ladder__step {
  position: relative;
  padding-block: 1.75rem 2.25rem;
  border-bottom: 1px solid var(--line);
}
@media (min-width: 64rem) {
  .ladder__step { padding: 1.75rem 1.75rem 0.5rem; border-bottom: 0; border-left: 1px solid var(--line); }
  .ladder__step:first-child { padding-left: 0; border-left: 0; }
  /* A short green marker draws in above each step */
  .ladder__step::before {
    content: "";
    position: absolute;
    top: -4px;
    left: 1.75rem;
    height: 6px;
    width: 2.5rem;
    background: var(--green);
  }
  .ladder__step:first-child::before { left: 0; }
}
@media (min-width: 64rem) and (prefers-reduced-motion: no-preference) {
  .js .ladder__step::before { width: 0; transition: width 0.9s var(--ease) 0.2s; }
  .js .ladder__step.is-visible::before { width: 2.5rem; }
}
.ladder__num {
  font-family: var(--font-head);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--muted);
}
.ladder__step h3 {
  margin-top: 1rem;
  font-size: var(--step-2);
}
.ladder__meta {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
  margin-block: 1rem 1.1rem;
  padding-block: 0.8rem;
  border-block: 1px solid var(--line);
  font-family: var(--font-head);
  line-height: 1.3;
}
.ladder__meta strong { font-size: 1.15rem; font-weight: 800; color: var(--green); }
.ladder__meta span { font-size: var(--step--1); color: var(--muted); }
.ladder__step > p:last-child { color: var(--ink); }

/* 4. What we fix --------------------------------------------------------- */
.fixes {
  display: grid;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}
@media (min-width: 44rem) { .fixes { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 68rem) { .fixes { grid-template-columns: repeat(3, 1fr); } }
.fix {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  background: var(--paper);
}
.fix h3 {
  font-size: var(--step-1);
  line-height: 1.2;
  margin-bottom: 1.5rem;
  min-height: 2.4em;
}
.fix dl { display: grid; gap: 1.1rem; margin-top: auto; }
.fix dt {
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}
.fix dl > div:last-child dt { color: var(--green); }
.fix dd { margin-top: 0.3rem; font-size: 1.02rem; line-height: 1.55; }
.fix dl > div:last-child {
  padding-top: 1.1rem;
  border-top: 1px solid var(--line);
}

/* 5. Why it sticks ------------------------------------------------------- */
.points { display: grid; counter-reset: point; }
.point {
  counter-increment: point;
  display: grid;
  grid-template-columns: 3rem 1fr;
  gap: 0 1rem;
  padding-block: 2rem;
  border-top: 1px solid var(--line);
}
.point:first-child { padding-top: 0.25rem; border-top: 0; }
@media (min-width: 60rem) { .point:first-child { padding-top: 0.5rem; } }
.point::before {
  content: counter(point, decimal-leading-zero);
  grid-row: span 2;
  font-family: var(--font-head);
  font-size: var(--step-1);
  font-weight: 800;
  color: var(--green);
  line-height: 1.2;
}
.point h3 { font-size: var(--step-2); margin-bottom: 0.6rem; }
.point p { max-width: 34rem; }

/* 6. What we won't do ---------------------------------------------------- */
.section--dark { padding-block: clamp(4rem, 8vw, 6.5rem); }
.wont > p:first-child { color: var(--on-dark-muted); }
.wont__list { margin-block: 1.5rem; }
.wont__list li {
  position: relative;
  padding: 1.25rem 0 1.25rem 2.25rem;
  border-top: 1px solid #3A3835;
}
.wont__list li:last-child { border-bottom: 1px solid #3A3835; }
.wont__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.85rem;
  width: 1rem;
  height: 2px;
  background: var(--paper);
}
.wont__list strong {
  display: block;
  font-family: var(--font-head);
  font-size: var(--step-1);
  line-height: 1.25;
  margin-bottom: 0.3rem;
}
.wont__list li { color: var(--on-dark-muted); }
.wont__list strong { color: var(--paper); }
.wont__close {
  font-size: var(--step-1);
  line-height: 1.45;
  font-style: italic;
}

/* 7. Pricing ------------------------------------------------------------- */
.oneoff {
  margin-bottom: clamp(3rem, 6vw, 4.5rem);
}
.oneoff .label { padding-bottom: 0.9rem; border-bottom: 2px solid var(--ink); }
.oneoff__row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 0.25rem 1.5rem;
  align-items: baseline;
  padding-block: 1.25rem;
  border-bottom: 1px solid var(--line);
}
.oneoff__row dt {
  font-family: var(--font-head);
  font-size: var(--step-1);
  font-weight: 700;
}
.oneoff__price {
  font-family: var(--font-head);
  font-size: var(--step-1);
  font-weight: 800;
  color: var(--green);
  text-align: right;
  white-space: nowrap;
}
.oneoff__desc { grid-column: 1 / -1; color: var(--muted); }
.oneoff__row--total { border-top: 2px solid var(--ink); border-bottom: 0; margin-top: -1px; }
.oneoff__row--total dt { font-weight: 800; }
@media (min-width: 48rem) {
  .oneoff__row { grid-template-columns: 14rem 1fr auto; }
  .oneoff__desc { grid-column: 2; grid-row: 1; }
  .oneoff__price { grid-column: 3; grid-row: 1; }
}

.tiers__label { margin-bottom: 1.25rem; }
.tiers {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 62rem) {
  .tiers { grid-template-columns: repeat(3, 1fr); gap: 0; }
  .tier + .tier { border-left: 0; }
}
.tier {
  display: flex;
  flex-direction: column;
  padding: clamp(1.5rem, 3vw, 2.25rem);
  border: 1px solid var(--line-strong);
  background: var(--paper);
}
.tier--feature {
  border-top: 6px solid var(--green);
}
@media (min-width: 62rem) {
  .tier { border-top: 6px solid var(--ink); }
  .tier--feature { border-top-color: var(--green); }
}
.tier__name { font-size: var(--step-1); }
.tier__price {
  display: flex;
  align-items: baseline;
  gap: 0.25rem;
  margin-block: 0.4rem 0.75rem;
  font-family: var(--font-head);
}
.tier__amount {
  font-size: var(--step-4);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}
.tier--feature .tier__amount { color: var(--green); }
.tier__per { color: var(--muted); font-weight: 500; }
.tier__for {
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--line);
  color: var(--muted);
  font-size: 1rem;
}
.tier__plus {
  font-family: var(--font-head);
  font-size: var(--step--1);
  font-weight: 700;
  margin-bottom: 0.6rem;
}
.tier__list { display: grid; gap: 0.7rem; }
.tier__list li {
  position: relative;
  padding-left: 1.6rem;
  font-size: 1.02rem;
  line-height: 1.5;
}
.tier__list li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.45em;
  width: 0.7rem;
  height: 0.4rem;
  border-left: 2px solid var(--green);
  border-bottom: 2px solid var(--green);
  transform: rotate(-45deg);
}
.pricing__note {
  margin-top: clamp(2rem, 4vw, 3rem);
  font-family: var(--font-head);
  font-size: var(--step-1);
  font-weight: 500;
}
.pricing__small {
  margin-top: 0.5rem;
  font-family: var(--font-head);
  font-size: var(--step--1);
  color: var(--muted);
}

/* 8. Case studies -------------------------------------------------------- */
.cases {
  display: grid;
  gap: 1.25rem;
}
@media (min-width: 52rem) {
  .cases { grid-template-columns: repeat(2, 1fr); }
  .case--featured { grid-column: 1 / -1; }
}
.case {
  display: grid;
  background: var(--paper);
  border: 1px solid var(--line-strong);
}
.case__figure {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: clamp(1.5rem, 3vw, 2.5rem);
  background: var(--green);
  color: var(--paper);
}
.case__num {
  font-family: var(--font-head);
  font-size: clamp(4.5rem, 3rem + 7vw, 9rem);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.05em;
}
.case__num span { font-size: 0.35em; letter-spacing: -0.02em; }
.case__unit {
  margin-top: 0.75rem;
  font-family: var(--font-head);
  font-size: var(--step-1);
  font-weight: 700;
  color: var(--green-tint);
}
.case__body { padding: clamp(1.5rem, 3vw, 2.5rem); }
.case__sector {
  font-family: var(--font-head);
  font-size: var(--step--1);
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--muted);
}
.case__body h3 { margin-block: 0.75rem 1.5rem; font-size: var(--step-2); }
.case__lines > div {
  display: grid;
  gap: 0.2rem 1.5rem;
  padding-block: 1rem;
  border-top: 1px solid var(--line);
}
.case__lines dt {
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--green);
}
@media (min-width: 40rem) {
  .case__lines > div { grid-template-columns: 6rem 1fr; }
}
@media (min-width: 52rem) {
  .case--featured { grid-template-columns: 5fr 7fr; }
  .case--featured .case__figure { min-height: 100%; }
}

/* 9. About --------------------------------------------------------------- */
.about {
  display: grid;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
@media (min-width: 52rem) {
  .about { grid-template-columns: 4fr 7fr; }
}
.about__photo {
  display: grid;
  place-items: center;
  width: 100%;
  max-width: 24rem;
  aspect-ratio: 4 / 5;
  background:
    repeating-linear-gradient(135deg, transparent 0 14px, rgba(31, 30, 28, 0.045) 14px 15px),
    var(--stone);
  border: 1px solid var(--line-strong);
  font-family: var(--font-head);
  font-size: var(--step--1);
  font-weight: 500;
  color: var(--muted);
}
.about__text h2 { font-size: var(--step-3); margin-bottom: 1.5rem; }
.about__text p:not(.eyebrow) {
  max-width: 38rem;
  font-size: var(--step-1);
  line-height: 1.55;
}
.about__text p + p { margin-top: 1.1rem; }

/* 10. Final CTA + form --------------------------------------------------- */
.split--cta { align-items: start; }
.cta__lede {
  margin-top: 1.5rem;
  max-width: 30rem;
  font-size: var(--step-1);
  line-height: 1.5;
}
.cta__small {
  margin-top: 1rem;
  font-family: var(--font-head);
  font-size: var(--step--1);
  color: var(--green-tint);
}
.form {
  display: grid;
  gap: 1.25rem;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid rgba(246, 243, 238, 0.28);
}
.field { display: grid; gap: 0.45rem; }
.field label {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1rem;
}
.field input,
.field select {
  width: 100%;
  min-height: 3.25rem;
  padding: 0.75rem 0.9rem;
  border: 2px solid var(--paper);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-head);
  font-size: 1.05rem;
  appearance: none;
}
.field input:focus-visible,
.field select:focus-visible {
  outline: 3px solid var(--paper);
  outline-offset: 3px;
}
.field [aria-invalid="true"] { border-color: var(--warn); box-shadow: inset 0 0 0 1px var(--warn); }
.select { position: relative; }
.select::after {
  content: "";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  width: 0.55rem;
  height: 0.55rem;
  border-right: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
  transform: translateY(-70%) rotate(45deg);
  pointer-events: none;
}
.field select { padding-right: 2.75rem; cursor: pointer; }
.field__error {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--warn);
}
.field__error::before { content: "! "; font-weight: 800; }
.hp {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.form .btn { margin-top: 0.5rem; }
.form__privacy {
  font-family: var(--font-head);
  font-size: var(--step--1);
  color: var(--green-tint);
}
.form__privacy a { color: var(--paper); }
.form__status:empty { display: none; }
.form__status {
  padding: 1rem 1.1rem;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-head);
  font-weight: 500;
}
.form__status.is-error { background: var(--warn); }
.form__status strong { display: block; font-size: 1.15rem; margin-bottom: 0.2rem; color: var(--green); }
.form.is-sent .field,
.form.is-sent .btn,
.form.is-sent .form__privacy { display: none; }

/* Footer ----------------------------------------------------------------- */
.site-footer {
  padding-block: clamp(3rem, 6vw, 4.5rem) 2rem;
  background: var(--paper);
  font-family: var(--font-head);
}
.site-footer__top {
  display: grid;
  gap: 1.5rem 3rem;
  padding-bottom: 2rem;
  border-bottom: 2px solid var(--ink);
}
@media (min-width: 52rem) {
  .site-footer__top { grid-template-columns: 1fr 1fr; align-items: end; }
}
.site-footer__tag { margin-top: 0.5rem; color: var(--muted); }
.site-footer__data {
  font-size: var(--step-1);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
  max-width: 28rem;
}
@media (min-width: 52rem) { .site-footer__data { justify-self: end; text-align: right; } }
.site-footer__bottom {
  display: grid;
  gap: 1.5rem;
  padding-block: 1.75rem;
  font-size: 0.92rem;
  color: var(--muted);
}
@media (min-width: 52rem) {
  .site-footer__bottom { grid-template-columns: 1fr auto; }
}
.site-footer__legal { line-height: 1.7; }
.site-footer__links { display: flex; flex-wrap: wrap; gap: 0.5rem 1.75rem; }
.site-footer__links a { color: var(--ink); font-weight: 500; }
.site-footer__copy { font-size: 0.85rem; color: var(--muted); }

/* Industries (homepage) -------------------------------------------------- */
.industries {
  display: grid;
  gap: 1px;
  background: var(--line-strong);
  border: 1px solid var(--line-strong);
}
@media (min-width: 44rem) { .industries { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 68rem) { .industries { grid-template-columns: repeat(4, 1fr); } }
.industry { background: var(--paper); }
.industry a {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(1.5rem, 3vw, 2rem);
  text-decoration: none;
  transition: background-color 0.2s var(--ease);
}
.industry a:hover { background: var(--stone); }
.industry h3 { font-size: var(--step-2); margin-bottom: 0.75rem; }
.industry p { font-size: 1.02rem; margin-bottom: 1.5rem; }
.industry__more {
  margin-top: auto;
  font-family: var(--font-head);
  font-weight: 700;
  color: var(--green);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 0.3em;
}
.industry__more::after { content: " →"; }
.industry--other { background: var(--stone); }
.industry--other a:hover { background: #E3DDD3; }

/* Sector pages ----------------------------------------------------------- */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}
.hero--sector { padding-top: clamp(2rem, 5vw, 3.5rem); }
.hero--sector .hero__title { max-width: 19ch; font-size: clamp(2.4rem, 1.5rem + 4vw, 5.2rem); }
.crumbs { margin-bottom: clamp(2rem, 5vw, 3.5rem); font-family: var(--font-head); font-size: var(--step--1); color: var(--muted); }
.crumbs ol { display: flex; flex-wrap: wrap; gap: 0.25rem 0; }
.crumbs li + li::before { content: "/"; margin-inline: 0.6rem; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--ink); }
.section__intro { margin-top: 1.25rem; font-size: var(--step-1); line-height: 1.5; max-width: 40rem; }

.tag {
  align-self: flex-start;
  margin-bottom: 1rem;
  padding: 0.2rem 0.55rem;
  border: 1.5px solid currentColor;
  font-family: var(--font-head);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  line-height: 1.4;
}
.tag--training { color: var(--green); }
.tag--tool { color: var(--paper); background: var(--ink); border-color: var(--ink); }

.maths {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  gap: 1.25rem 1.5rem;
  padding-block: clamp(1.75rem, 4vw, 2.75rem);
  border-block: 2px solid var(--ink);
}
.maths__term { display: flex; flex-direction: column; max-width: 11rem; }
.maths__num {
  font-family: var(--font-head);
  font-size: var(--step-4);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.04em;
}
.maths__label { margin-top: 0.5rem; font-family: var(--font-head); font-size: var(--step--1); color: var(--muted); line-height: 1.35; }
.maths__op {
  font-family: var(--font-head);
  font-size: var(--step-3);
  font-weight: 500;
  line-height: 1.2;
  color: var(--muted);
}
.maths__term--result { max-width: 13rem; }
/* Small screens: one line per number, operator in a left-hand column */
@media (max-width: 43.99rem) {
  .maths { display: grid; grid-template-columns: 2.25rem 1fr; gap: 1rem 0.5rem; align-items: baseline; }
  .maths__term:first-child { grid-column: 2; }
  .maths__term, .maths__term--result { max-width: none; }
  .maths__op { font-size: var(--step-2); }
}
.maths__term--result .maths__num { color: var(--green); }
.maths__term--result .maths__label { color: var(--green); font-weight: 700; }
.maths__note { margin-top: 1.5rem; font-family: var(--font-head); font-size: var(--step-1); font-weight: 700; line-height: 1.35; max-width: 40rem; }
.maths__small { margin-top: 0.5rem; font-family: var(--font-head); font-size: var(--step--1); color: var(--muted); }

/* Illustrations ---------------------------------------------------------- */
.art { display: block; }
.art img {
  display: block;
  width: 100%;
  height: auto;
  mix-blend-mode: multiply; /* lets the printed paper sit on our own paper colour */
}
.split__art { margin-top: clamp(1.5rem, 4vw, 2.5rem); max-width: 32rem; }
.hero__split { display: grid; gap: clamp(1.5rem, 4vw, 3rem); align-items: end; }
.hero__art { max-width: 34rem; }
@media (min-width: 60rem) {
  .hero__split { grid-template-columns: 7fr 5fr; }
  .hero__art { justify-self: end; width: 100%; margin-bottom: -0.5rem; }
  .hero--sector .hero__title { font-size: clamp(2.4rem, 1.2rem + 3.4vw, 4.6rem); }
}
.industry__art {
  margin: calc(-1 * clamp(1.5rem, 3vw, 2rem)) calc(-1 * clamp(1.5rem, 3vw, 2rem)) 1.25rem;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.industry__art img { transition: transform 0.5s var(--ease); }
/* Phones: a compact two-column grid of pictures and names */
@media (max-width: 43.99rem) {
  .industries { grid-template-columns: repeat(2, 1fr); }
  .industry a { padding: 0 0.85rem 1rem; }
  .industry__art { margin: 0 -0.85rem 0.75rem; }
  .industry h3 { font-size: 1.05rem; line-height: 1.2; margin-bottom: 0.5rem; }
  .industry p { display: none; }
  .industry__more { font-size: 0.88rem; }
  .industry--other a { padding-top: 1rem; }
  .industry--other p { display: block; font-size: 0.9rem; margin-bottom: 0.75rem; }
}
@media (prefers-reduced-motion: no-preference) {
  .industry a:hover .industry__art img { transform: scale(1.03); }
}

.section--tight { padding-block: clamp(2.5rem, 5vw, 3.5rem); }
.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; margin-top: 1rem; }
.chips a {
  display: inline-block;
  padding: 0.5rem 0.9rem;
  border: 1px solid var(--line-strong);
  font-family: var(--font-head);
  font-weight: 500;
  font-size: 0.98rem;
  text-decoration: none;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease);
}
.chips a:hover { background: var(--stone); border-color: var(--ink); }

/* Motion: a gentle rise, only with JS and without reduced motion --------- */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    opacity: 0;
    transform: translateY(14px);
    transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
    transition-delay: var(--delay, 0ms);
  }
  .js .reveal.is-visible { opacity: 1; transform: none; }
}

/* Print ------------------------------------------------------------------ */
@media print {
  .site-header, .skip-link, .form { display: none; }
  .section--dark, .section--green, .case__figure { background: none; color: #000; }
  .js .reveal { opacity: 1; transform: none; }
}