/* ==========================================================================
   ClearTech Assessment — design system and layout
   Mobile-first. No external fonts, no frameworks.
   ========================================================================== */

/* ---------- 1. Tokens ---------- */
:root {
  --navy: #101d30;
  --navy-2: #182a42;
  --paper: #f5f4f0;
  --surface: #fcfbf8;
  --grey: #e8e9e6;
  --teal: #2d665f;
  --teal-dark: #224e49;
  --teal-on-navy: #8fc3b9;
  --ink: #253142;
  --muted: #596675;
  --on-navy: #f5f4f0;
  --on-navy-muted: #aeb7c3;
  --line: #d6d8d2;
  --line-on-navy: rgba(245, 244, 240, 0.16);
  --error: #a3242b;
  --success: #1f5a4f;

  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Charter, "Bitstream Charter", Georgia, serif;
  --font-sans: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --step--1: 0.875rem;
  --step-0: 1.0625rem;
  --step-1: 1.1875rem;
  --step-2: clamp(1.3125rem, 1.2rem + 0.5vw, 1.5rem);
  --step-3: clamp(1.625rem, 1.35rem + 1.2vw, 2.125rem);
  --step-4: clamp(1.875rem, 1.35rem + 2.3vw, 3.125rem);
  --step-5: clamp(2.375rem, 1.5rem + 4vw, 4.75rem);

  --gutter: clamp(1rem, 4.5vw, 3rem);
  --container: 76rem;
  --section-y: clamp(4.5rem, 3rem + 7vw, 9rem);
  --header-h: 4.25rem;
  --radius: 2px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ---------- 2. Base ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: var(--step-0);
  line-height: 1.65;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; }

h1, h2, h3, h4 {
  margin: 0;
  color: var(--navy);
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.012em;
  text-wrap: balance;
}

h1 { font-size: var(--step-5); line-height: 1.04; letter-spacing: -0.022em; }
h2 { font-size: var(--step-4); }
h3 { font-size: var(--step-2); line-height: 1.25; }

p, ul, ol, dl { margin: 0; }
p { text-wrap: pretty; }
p + p { margin-top: 1.1em; }

a { color: var(--teal); text-underline-offset: 0.2em; text-decoration-thickness: 1px; }
a:hover { color: var(--teal-dark); }

:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 1px;
}

::selection { background: var(--navy); color: var(--paper); }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: var(--gutter);
  top: -4rem;
  z-index: 100;
  padding: 0.75rem 1rem;
  background: var(--navy);
  color: var(--paper);
  text-decoration: none;
}
.skip-link:focus { top: 0.75rem; color: var(--paper); }

/* ---------- 3. Layout primitives ---------- */
.container {
  width: 100%;
  max-width: calc(var(--container) + var(--gutter) * 2);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--section-y); }
.section + .section:not(.section--navy):not(.section--grey):not(.section--surface) { border-top: 1px solid var(--line); }
.section--navy { background: var(--navy); color: var(--on-navy-muted); }
.section--grey { background: var(--grey); }
.section--surface { background: var(--surface); border-block: 1px solid var(--line); }

.section--navy h2,
.section--navy h3 { color: var(--on-navy); }
.section--navy a:not(.btn) { color: var(--on-navy); }
.section--navy :focus-visible { outline-color: var(--on-navy); }

.split {
  display: grid;
  gap: 2rem;
}

@media (min-width: 64em) {
  .split {
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: clamp(3rem, 6vw, 7rem);
    align-items: start;
  }
  .split--sticky > :first-child { position: sticky; top: calc(var(--header-h) + 2.5rem); }
}

.split h2 + p { margin-top: 1.25rem; }

.section-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 2rem + 2vw, 4rem); }
.section-head p:not(.eyebrow) { margin-top: 1.25rem; color: var(--muted); font-size: var(--step-1); }
.section--navy .section-head p:not(.eyebrow) { color: var(--on-navy-muted); }

/* ---------- 4. Type helpers ---------- */
.eyebrow {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.25rem;
  color: var(--teal);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  line-height: 1.4;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  flex: 0 0 1.75rem;
  height: 1px;
  background: currentColor;
}
.section--navy .eyebrow { color: var(--teal-on-navy); }

.lead {
  color: var(--ink);
  font-family: var(--font-serif);
  font-size: var(--step-2);
  line-height: 1.45;
}

.section--navy .lead { color: var(--on-navy); }
.section--navy .lead + p { margin-top: 1.5rem; }
.prose p { color: var(--ink); }
.prose .lead + p { margin-top: 1.5rem; }
.muted { color: var(--muted); }

.note {
  margin-top: 1.75rem;
  padding-left: 1rem;
  border-left: 2px solid var(--teal);
  color: var(--muted);
  font-size: var(--step--1);
}
.section--navy .note { color: var(--on-navy-muted); border-color: var(--teal-on-navy); }

.index-num {
  display: block;
  color: var(--teal);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  font-variant-numeric: tabular-nums;
}

/* ---------- 5. Buttons and links ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  min-height: 3rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--navy);
  border-radius: var(--radius);
  background: var(--navy);
  color: var(--paper);
  font: 600 0.9375rem/1.2 var(--font-sans);
  letter-spacing: 0.01em;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.btn:hover { background: var(--teal); border-color: var(--teal); color: var(--paper); }

.btn--ghost { background: transparent; color: var(--navy); }
.btn--ghost:hover { background: var(--navy); border-color: var(--navy); color: var(--paper); }

.btn--light { background: var(--paper); border-color: var(--paper); color: var(--navy); }
.btn--light:hover { background: var(--teal-on-navy); border-color: var(--teal-on-navy); color: var(--navy); }

.btn--sm { min-height: 2.75rem; padding: 0.5rem 1.125rem; font-size: 0.875rem; }

.btn-row { display: flex; flex-wrap: wrap; gap: 0.75rem; margin-top: 2.25rem; }

@media (max-width: 29.99em) {
  .btn-row .btn { flex: 1 1 100%; }
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 2.75rem;
  color: var(--navy);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
}
.arrow-link::after {
  content: "\2192";
  transition: transform 0.2s var(--ease);
}
.arrow-link:hover { color: var(--teal); }
.arrow-link:hover::after { transform: translateX(4px); }

/* ---------- 6. Header and navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--header-h);
}

.wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  min-height: 2.75rem;
  align-self: center;
  padding-block: 0.6rem;
  color: var(--navy);
  text-decoration: none;
  white-space: nowrap;
}
.wordmark:hover { color: var(--navy); }
.wordmark__primary {
  font-family: var(--font-serif);
  font-size: 1.375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1;
}
.wordmark__secondary {
  padding-left: 0.55rem;
  border-left: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--font-sans);
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  line-height: 1;
  text-transform: uppercase;
}

.nav-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  min-height: 2.75rem;
  min-width: 2.75rem;
  padding: 0 0.25rem 0 0.75rem;
  margin-right: -0.25rem;
  border: 0;
  background: none;
  color: var(--navy);
  font: 600 0.875rem/1 var(--font-sans);
  cursor: pointer;
}
.nav-toggle__icon {
  position: relative;
  width: 1.375rem;
  height: 0.75rem;
}
.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 100%;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.25s var(--ease), top 0.25s var(--ease);
}
.nav-toggle__icon::before { top: 0; }
.nav-toggle__icon::after { top: calc(100% - 1.5px); }
.nav-open .nav-toggle__icon::before { top: calc(50% - 0.75px); transform: rotate(45deg); }
.nav-open .nav-toggle__icon::after { top: calc(50% - 0.75px); transform: rotate(-45deg); }

.site-nav__list,
.site-nav__sub { list-style: none; padding: 0; }

/* Mobile navigation panel */
@media (max-width: 63.99em) {
  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 0 0;
    z-index: 49;
    display: none;
    overflow-y: auto;
    overscroll-behavior: contain;
    padding: 1.5rem var(--gutter) 2.5rem;
    background: var(--paper);
  }
  .nav-open .site-nav { display: block; }
  .nav-open body { overflow: hidden; }

  .site-nav__list > li { border-bottom: 1px solid var(--line); }
  .site-nav__link {
    display: flex;
    align-items: center;
    min-height: 3.5rem;
    color: var(--navy);
    font-family: var(--font-serif);
    font-size: 1.5rem;
    text-decoration: none;
  }
  .site-nav__sub { padding: 0 0 1rem; }
  .site-nav__sub a {
    display: flex;
    align-items: center;
    min-height: 2.75rem;
    padding-left: 1rem;
    border-left: 1px solid var(--line);
    color: var(--ink);
    text-decoration: none;
  }
  .site-nav__sub a:hover, .site-nav__link:hover { color: var(--teal); }
  .site-nav__subtoggle { display: none; }
  .site-nav__cta { margin-top: 2rem; }
  .site-nav__cta .btn { width: 100%; }

}

/* Desktop navigation */
@media (min-width: 64em) {
  :root { --header-h: 5rem; }
  .nav-toggle { display: none; }

  .site-nav { display: flex; align-items: center; gap: 2rem; }
  .site-nav__list { display: flex; align-items: center; gap: 0.25rem; }
  .site-nav__item { position: relative; display: flex; align-items: center; }

  .site-nav__link {
    display: inline-flex;
    align-items: center;
    min-height: 2.75rem;
    padding: 0 0.75rem;
    color: var(--ink);
    font-size: 0.9375rem;
    font-weight: 500;
    text-decoration: none;
  }
  .site-nav__link:hover,
  .site-nav__link[aria-current="page"] { color: var(--teal); }
  .site-nav__item--has-sub .site-nav__link { padding-right: 0.125rem; }

  .site-nav__subtoggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2.75rem;
    padding: 0;
    border: 0;
    background: none;
    color: var(--ink);
    cursor: pointer;
  }
  .site-nav__subtoggle::before {
    content: "";
    width: 0.4rem;
    height: 0.4rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: translateY(-2px) rotate(45deg);
    transition: transform 0.2s var(--ease);
  }
  .site-nav__subtoggle[aria-expanded="true"]::before { transform: translateY(1px) rotate(-135deg); }

  .site-nav__sub {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 21rem;
    padding: 0.5rem;
    border: 1px solid var(--line);
    background: var(--surface);
    box-shadow: 0 18px 40px -24px rgba(16, 29, 48, 0.35);
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity 0.18s var(--ease), transform 0.18s var(--ease), visibility 0s linear 0.18s;
  }
  .site-nav__item--has-sub:hover .site-nav__sub,
  .site-nav__item--has-sub.is-open .site-nav__sub {
    opacity: 1;
    visibility: visible;
    transform: none;
    transition-delay: 0s;
  }
  .site-nav__item--has-sub.is-closed .site-nav__sub { opacity: 0; visibility: hidden; }

  .site-nav__sub a {
    display: block;
    padding: 0.8rem 1rem;
    color: var(--navy);
    text-decoration: none;
  }
  .site-nav__sub a:hover { background: var(--paper); color: var(--teal); }
  .site-nav__sub-title { display: block; font-family: var(--font-serif); font-size: 1.0625rem; line-height: 1.3; }
  .site-nav__sub-desc { display: block; margin-top: 0.2rem; color: var(--muted); font-size: 0.8125rem; line-height: 1.4; }
}

@media (max-width: 63.99em) {
  .site-nav__sub-desc { display: none; }
}

/* ---------- 7. Hero ---------- */
.hero { padding-block: clamp(3.5rem, 2rem + 7vw, 8.5rem) clamp(3rem, 2rem + 4vw, 5.5rem); }

.hero__title { max-width: 14em; }

.hero__body {
  display: grid;
  gap: 2.5rem;
  margin-top: clamp(1.75rem, 1rem + 3vw, 3.5rem);
}

.hero__lead {
  max-width: 38rem;
  color: var(--ink);
  font-size: var(--step-1);
  line-height: 1.6;
}

.hero__principles {
  list-style: none;
  padding: 0 0 0 1.25rem;
  border-left: 1px solid var(--navy);
  color: var(--navy);
  font-family: var(--font-serif);
  font-size: var(--step-1);
  line-height: 1.5;
}

@media (min-width: 64em) {
  .hero__body { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 5rem; align-items: end; }
  .hero__principles { justify-self: end; padding-bottom: 0.4rem; }
}

.hero-index {
  display: grid;
  list-style: none;
  padding: 0;
  margin-top: clamp(3rem, 2rem + 4vw, 5rem);
  border-top: 1px solid var(--navy);
}
.hero-index li { border-bottom: 1px solid var(--line); }
.hero-index a {
  display: grid;
  grid-template-columns: 2.5rem 1fr auto;
  align-items: baseline;
  gap: 0.25rem 0.75rem;
  padding: 1.25rem 0;
  color: var(--navy);
  text-decoration: none;
}
.hero-index__title { font-family: var(--font-serif); font-size: var(--step-1); line-height: 1.3; }
.hero-index__when {
  grid-column: 2;
  color: var(--muted);
  font-size: var(--step--1);
}
.hero-index a::after {
  content: "\2192";
  grid-column: 3;
  grid-row: 1;
  color: var(--teal);
  transition: transform 0.2s var(--ease);
}
.hero-index a:hover .hero-index__title { color: var(--teal); }
.hero-index a:hover::after { transform: translateX(4px); }

@media (min-width: 48em) {
  .hero-index { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .hero-index li { border-bottom: 0; }
  .hero-index li + li { border-left: 1px solid var(--line); }
  .hero-index a { padding: 1.5rem 1.5rem 0.5rem; grid-template-columns: 1fr auto; }
  .hero-index li:first-child a { padding-left: 0; }
  .hero-index .index-num { grid-column: 1 / -1; margin-bottom: 0.75rem; }
  .hero-index__when { grid-column: 1; }
  .hero-index a::after { grid-column: 2; grid-row: 2; }
}

/* Page hero (service pages) */
.page-hero { padding-block: clamp(2rem, 1.5rem + 3vw, 4rem) clamp(3.5rem, 2.5rem + 5vw, 7rem); }
.page-hero h1 { max-width: 20ch; font-size: clamp(2.25rem, 1.5rem + 3.4vw, 4.25rem); }
.page-hero__grid { display: grid; gap: 3rem; margin-top: clamp(2.5rem, 2rem + 3vw, 5rem); }
.page-hero__lead { max-width: 40rem; margin-top: 1.5rem; font-size: var(--step-1); }

.toc {
  padding-top: 1.25rem;
  border-top: 1px solid var(--navy);
}
.toc__title {
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.toc ol { list-style: none; padding: 0; }
.toc a {
  display: flex;
  align-items: center;
  min-height: 2.75rem;
  border-bottom: 1px solid var(--line);
  color: var(--navy);
  font-size: 0.9375rem;
  text-decoration: none;
}
.toc a:hover { color: var(--teal); }

@media (min-width: 64em) {
  .page-hero__grid { grid-template-columns: minmax(0, 7fr) minmax(0, 4fr); gap: 5rem; align-items: start; }
}

.breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  list-style: none;
  padding: 0;
  color: var(--muted);
  font-size: var(--step--1);
}
.breadcrumb li + li::before { content: "/"; margin: 0 0.6rem; color: var(--line); }
.breadcrumb a { color: var(--muted); text-decoration: none; display: inline-flex; min-height: 2rem; align-items: center; }
.breadcrumb a:hover { color: var(--teal); text-decoration: underline; }
.breadcrumb [aria-current] { display: inline-flex; min-height: 2rem; align-items: center; color: var(--ink); }
@media (max-width: 47.99em) {
  /* The eyebrow directly below repeats the page name. */
  .breadcrumb li:last-child { display: none; }
}

/* ---------- 8. Service cards ---------- */
.service-cards { display: grid; gap: 1.25rem; list-style: none; padding: 0; }

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  padding: clamp(1.75rem, 1.4rem + 1.5vw, 2.5rem);
  border: 1px solid var(--line);
  border-top: 2px solid var(--navy);
  border-radius: var(--radius);
  background: var(--surface);
}
.service-card h3 { margin-top: 1.5rem; font-size: var(--step-3); }
.service-card h3 a { color: inherit; text-decoration: none; }
.service-card h3 a:hover { color: var(--teal); }
.service-card__desc { margin-top: 1rem; color: var(--ink); }

.service-card__topics-title {
  margin-top: 2rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.topic-list { list-style: none; padding: 0; margin-top: 0.75rem; }
.topic-list li {
  padding: 0.6rem 0 0.6rem 1.25rem;
  border-bottom: 1px solid var(--line);
  position: relative;
  font-size: 0.9375rem;
  line-height: 1.45;
}
.topic-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 1.2rem;
  width: 0.5rem;
  height: 1px;
  background: var(--teal);
}
.service-card__cta { margin-top: auto; padding-top: 1.75rem; }

@media (min-width: 48em) and (max-width: 63.99em) {
  .service-card__body { display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem; }
  .service-card__topics-title { margin-top: 0.25rem; }
}

@media (min-width: 64em) {
  .service-cards { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- 9. Feature grid (assessment areas etc.) ---------- */
.feature-grid {
  display: grid;
  list-style: none;
  padding: 0;
  gap: 0 clamp(2rem, 4vw, 3.5rem);
}
.feature {
  padding: 1.75rem 0 2.25rem;
  border-top: 1px solid var(--line);
}
.feature h3 { margin-top: 1rem; }
.feature p { margin-top: 0.75rem; color: var(--muted); }

.section--navy .feature { border-color: var(--line-on-navy); }
.section--navy .feature p { color: var(--on-navy-muted); }
.section--navy .index-num { color: var(--teal-on-navy); }

@media (min-width: 40em) {
  .feature-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 64em) {
  .feature-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- 10. Steps ---------- */
.steps {
  display: grid;
  list-style: none;
  padding: 0;
  gap: 0;
  counter-reset: step;
}
.step {
  position: relative;
  padding: 2rem 0 2.25rem;
  border-top: 1px solid var(--line-on-navy);
}
.step__num {
  display: block;
  color: var(--teal-on-navy);
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 2rem + 2vw, 3.5rem);
  line-height: 1;
  font-variant-numeric: lining-nums;
}
.step h3 { margin-top: 1.25rem; }
.step p { margin-top: 0.75rem; }

.section:not(.section--navy) .step { border-color: var(--line); }
.section:not(.section--navy) .step__num { color: var(--teal); }
.section:not(.section--navy) .step p { color: var(--muted); }

@media (min-width: 40em) {
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); column-gap: 2.5rem; }
}
@media (min-width: 64em) {
  .steps { grid-template-columns: repeat(4, minmax(0, 1fr)); column-gap: 2.5rem; }
  .step { padding-right: 0.5rem; }
}

/* ---------- 11. Indexed list (deliverables, situations) ---------- */
.index-list {
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--navy);
  counter-reset: item;
}
.index-list li {
  display: grid;
  grid-template-columns: 2.75rem 1fr;
  align-items: baseline;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--line);
  color: var(--navy);
  font-family: var(--font-serif);
  font-size: var(--step-1);
  line-height: 1.4;
  counter-increment: item;
}
.index-list li::before {
  content: counter(item, decimal-leading-zero);
  color: var(--teal);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  font-variant-numeric: tabular-nums;
}
.section--navy .index-list { border-color: var(--on-navy); }
.section--navy .index-list li { border-color: var(--line-on-navy); color: var(--on-navy); }
.section--navy .index-list li::before { color: var(--teal-on-navy); }

.check-list {
  display: grid;
  list-style: none;
  padding: 0;
  gap: 0 2.5rem;
  border-top: 1px solid var(--navy);
}
.check-list li {
  position: relative;
  padding: 1.1rem 0 1.1rem 2rem;
  border-bottom: 1px solid var(--line);
  color: var(--navy);
  font-family: var(--font-serif);
  font-size: var(--step-1);
  line-height: 1.4;
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 1.45rem;
  width: 0.7rem;
  height: 0.35rem;
  border-left: 1.5px solid var(--teal);
  border-bottom: 1.5px solid var(--teal);
  transform: rotate(-45deg);
}
@media (min-width: 48em) {
  .check-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 12. Audience blocks ---------- */
.audience-grid {
  display: grid;
  list-style: none;
  padding: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
}
.audience {
  padding: clamp(1.75rem, 1.4rem + 1.5vw, 2.75rem);
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--surface);
}
.audience h3 { font-size: var(--step-2); }
.audience p { margin-top: 0.85rem; color: var(--muted); }

@media (min-width: 48em) {
  .audience-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .audience-grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}
@media (min-width: 48em) and (max-width: 63.99em) {
  .audience-grid--3 { grid-template-columns: 1fr; }
}

/* ---------- 13. Comparison (assessment / audit / due diligence) ---------- */
.compare {
  display: grid;
  list-style: none;
  padding: 0;
  gap: 1.25rem;
}
.compare__item {
  padding: 1.75rem;
  border: 1px solid var(--line);
  border-top: 2px solid var(--navy);
  background: var(--surface);
}
.compare__item--current { border-top-color: var(--teal); }
.compare__label {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--teal);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.compare__item p { margin-top: 0.75rem; color: var(--muted); }
@media (min-width: 64em) {
  .compare { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

/* ---------- 14. About ---------- */
.principles {
  display: grid;
  list-style: none;
  padding: 0;
  margin-top: 2.5rem;
  border-top: 1px solid var(--navy);
}
.principles li {
  padding: 1rem 0;
  border-bottom: 1px solid rgba(16, 29, 48, 0.14);
  color: var(--navy);
  font-family: var(--font-serif);
  font-size: var(--step-1);
}
@media (min-width: 48em) {
  .principles { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 0 2rem; }
}

/* ---------- 15. FAQ ---------- */
.faq { border-top: 1px solid var(--navy); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  position: relative;
  display: block;
  min-height: 2.75rem;
  padding: 1.35rem 2.75rem 1.35rem 0;
  color: var(--navy);
  font-family: var(--font-serif);
  font-size: var(--step-1);
  line-height: 1.4;
  list-style: none;
  cursor: pointer;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::before,
.faq summary::after {
  content: "";
  position: absolute;
  right: 0.35rem;
  top: 50%;
  width: 0.875rem;
  height: 1.5px;
  background: var(--teal);
  transition: transform 0.2s var(--ease);
}
.faq summary::after { transform: rotate(90deg); }
.faq details[open] summary::after { transform: rotate(0deg); }
.faq summary:hover { color: var(--teal); }
.faq__answer { padding: 0 2.75rem 1.6rem 0; color: var(--muted); max-width: 44rem; }

/* ---------- 16. CTA band ---------- */
.cta-band { padding-block: clamp(4rem, 3rem + 5vw, 7rem); background: var(--navy); color: var(--on-navy-muted); }
.cta-band__inner { display: grid; gap: 2rem; }
.cta-band h2 { color: var(--on-navy); max-width: 20ch; }
.cta-band p { margin-top: 1.25rem; max-width: 36rem; font-size: var(--step-1); }
.cta-band .btn-row { margin-top: 0; }
.cta-band :focus-visible { outline-color: var(--on-navy); }
@media (min-width: 64em) {
  .cta-band__inner { grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 4rem; }
}

/* ---------- 17. Related services ---------- */
.related { display: grid; list-style: none; padding: 0; gap: 1.25rem; }
.related a {
  display: block;
  height: 100%;
  padding: 1.75rem;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--navy);
  text-decoration: none;
  transition: border-color 0.2s var(--ease);
}
.related a:hover { border-color: var(--navy); }
.related__title { display: block; margin-top: 0.75rem; font-family: var(--font-serif); font-size: var(--step-2); line-height: 1.25; }
.related__desc { display: block; margin-top: 0.6rem; color: var(--muted); font-size: 0.9375rem; }
.related__more { display: inline-block; margin-top: 1.25rem; color: var(--teal); font-weight: 600; font-size: 0.9375rem; }
.related__more::after { content: " \2192"; }
@media (min-width: 48em) {
  .related { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

/* ---------- 18. Contact form ---------- */
.contact-panel {
  padding: clamp(1.5rem, 1rem + 2.5vw, 3rem);
  border: 1px solid var(--line);
  border-top: 2px solid var(--navy);
  background: var(--surface);
}

.form-grid { display: grid; gap: 1.5rem; }
@media (min-width: 48em) {
  .form-grid { grid-template-columns: 1fr 1fr; }
  .form-field--full { grid-column: 1 / -1; }
}

.form-field label,
.form-field .label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--navy);
  font-size: 0.9375rem;
  font-weight: 600;
}
.form-field .optional { color: var(--muted); font-weight: 400; }

.input {
  display: block;
  width: 100%;
  min-height: 3rem;
  padding: 0.75rem 0.875rem;
  border: 1px solid #a9afb5;
  border-radius: var(--radius);
  background: #fff;
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  line-height: 1.5;
  transition: border-color 0.15s var(--ease), box-shadow 0.15s var(--ease);
}
.input:hover { border-color: var(--muted); }
.input:focus { outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(45, 102, 95, 0.22); }
.input[aria-invalid="true"] { border-color: var(--error); }
.input[aria-invalid="true"]:focus { box-shadow: 0 0 0 3px rgba(163, 36, 43, 0.18); }
textarea.input { min-height: 10rem; resize: vertical; }
select.input {
  appearance: none;
  padding-right: 2.75rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1.5l5 5 5-5' fill='none' stroke='%23253142' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
}

.field-error {
  display: block;
  margin-top: 0.45rem;
  color: var(--error);
  font-size: 0.875rem;
  font-weight: 500;
}
.field-error:empty { display: none; }

.checkbox {
  display: grid;
  grid-template-columns: 1.375rem 1fr;
  gap: 0.75rem;
  align-items: start;
  color: var(--ink);
  font-size: 0.9375rem;
  line-height: 1.5;
  cursor: pointer;
}
.checkbox input {
  width: 1.375rem;
  height: 1.375rem;
  margin: 0.05rem 0 0;
  accent-color: var(--navy);
  cursor: pointer;
}
.form-field .checkbox { display: grid; font-weight: 400; margin-bottom: 0; }

.hp-field { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }

.form-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; margin-top: 2rem; }
.form-actions .btn { min-width: 12rem; }
@media (max-width: 29.99em) {
  .form-actions .btn { width: 100%; }
}
.btn[aria-disabled="true"] { opacity: 0.7; cursor: progress; }

.form-status {
  margin-top: 1.5rem;
  padding: 1rem 1.125rem;
  border-left: 3px solid;
  font-size: 0.9375rem;
}
.form-status:empty { display: none; }
.form-status--success { border-color: var(--success); background: #e3eeeb; color: var(--success); }
.form-status--error { border-color: var(--error); background: #f6e6e6; color: var(--error); }
.form-status--pending { border-color: var(--muted); background: var(--grey); color: var(--ink); }

.form-privacy { margin-top: 1.5rem; color: var(--muted); font-size: 0.875rem; }

.contact-aside p:not(.eyebrow) { color: var(--ink); }
.contact-aside .lead { margin-top: 1.5rem; }
.contact-email { margin-top: 1.75rem; }
.contact-email a { font-weight: 600; }
.form-status a { color: inherit; font-weight: 600; }

/* ---------- 19. Footer ---------- */
.site-footer {
  padding-block: clamp(3.5rem, 2.5rem + 4vw, 5.5rem) 2rem;
  background: var(--navy);
  color: var(--on-navy-muted);
  font-size: 0.9375rem;
}
.site-footer :focus-visible { outline-color: var(--on-navy); }
.site-footer__grid { display: grid; gap: 2.5rem; }
.site-footer .wordmark { color: var(--on-navy); }
.site-footer .wordmark__secondary { color: var(--on-navy-muted); border-color: var(--line-on-navy); }
.site-footer__tagline { margin-top: 0.75rem; max-width: 22rem; }
.site-footer__email {
  margin-top: 0rem;
}
.site-footer__email a { display: inline-flex; align-items: center; min-height: 2.75rem; margin-top: 0.5rem; color: var(--on-navy); text-underline-offset: 0.2em; }
.site-footer__email a:hover { color: var(--teal-on-navy); }
.site-footer__heading {
  margin-bottom: 0.75rem;
  color: var(--on-navy);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.site-footer ul { list-style: none; padding: 0; }
.site-footer li a {
  display: inline-flex;
  align-items: center;
  min-height: 2.5rem;
  color: var(--on-navy-muted);
  text-decoration: none;
}
.site-footer li a:hover { color: var(--on-navy); text-decoration: underline; }
.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  margin-top: clamp(3rem, 2rem + 3vw, 4.5rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--line-on-navy);
  font-size: 0.8125rem;
}
.site-footer__bottom p {
  margin-top: 0;
}
@media (min-width: 48em) {
  .site-footer__grid { grid-template-columns: 2fr 1fr 1fr; }
}

/* ---------- 20. Legal / simple pages ---------- */
.legal { max-width: 46rem; }
.legal h2 { margin-top: 3rem; font-size: var(--step-3); }
.legal p, .legal ul { margin-top: 1rem; }
.legal ul { padding-left: 1.25rem; }
.legal li + li { margin-top: 0.4rem; }
.draft-notice {
  margin-top: 2rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--error);
  border-left-width: 4px;
  background: #fbf1f1;
  color: var(--ink);
}
.draft-notice strong { color: var(--error); }
.placeholder { padding: 0 0.25rem; background: #fff3c4; color: var(--ink); font-weight: 600; }

/* ---------- 21. Motion ---------- */
/* Motion is limited to hover/focus transitions and the menu; nothing delays content rendering. */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* ---------- 22. Print ---------- */
@media print {
  .site-header, .site-footer, .cta-band, .btn-row, #contact { display: none; }
  body { background: #fff; }
  .section { padding-block: 1.5rem; }
}