/* ==========================================================================
   Tralemix — styles.css
   Single stylesheet for the entire site.
   Sections: Tokens → Reset → Layout → Typography → Buttons → Header →
             Hero → Footer → Components → Pages → Utilities → Media queries
   ========================================================================== */

/* --------------------------------------------------------------------------
   Design tokens
   -------------------------------------------------------------------------- */

:root {
  /* Colors */
  --color-ink:          #303030;
  --color-ink-soft:     #4a4a4a;
  --color-slate:        #5c6773;
  --color-line:         #dde0e4;
  --color-surface:      #fafafa;
  --color-surface-alt:  #f4f4f4;
  --color-accent:       #3d4e9a;
  --color-accent-dark:  #2e3b7a;
  --color-accent-soft:  #edf0f9;
  --color-on-accent:    #ffffff;
  --color-accent-warm:  #e1a45a;
  --color-accent-confirm: #4daf4e;
  --color-accent-error: #cd554a;

  /* Typography */
  --font-display: 'Open Sans', 'Segoe UI', system-ui, sans-serif;
  --font-body:    'Lato', 'Segoe UI', system-ui, sans-serif;
  --font-utility: 'Roboto', 'Segoe UI', system-ui, sans-serif;

  /* Layout */
  --container-width:   1180px;
  --container-padding: 1.5rem;
  --radius-sm: 4px;
  --radius-md: 8px;

  /* Spacing */
  --space-2xs: 0.375rem;
  --space-xs:  0.625rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;
}

/* --------------------------------------------------------------------------
   Reset & base
   -------------------------------------------------------------------------- */

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

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-slate);
  background-color: var(--color-surface);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: var(--color-accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--color-ink);
  line-height: 1.2;
  margin: 0;
}

p  { margin: 0; }
ul { margin: 0; padding: 0; }
button { font-family: inherit; }

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

/* --------------------------------------------------------------------------
   Skip link
   -------------------------------------------------------------------------- */

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--color-accent);
  color: var(--color-on-accent);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: top 0.1s;
}
.skip-link:focus { top: 1rem; }

/* --------------------------------------------------------------------------
   Focus states
   -------------------------------------------------------------------------- */

a:focus-visible,
button:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Layout helpers
   -------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container-width);
  margin-inline: auto;
  padding-inline: var(--container-padding);
}

.section        { padding-block: var(--space-2xl); }
.section--alt   { background-color: var(--color-surface-alt); }

/* --------------------------------------------------------------------------
   Type scale
   -------------------------------------------------------------------------- */

.h1 { font-size: clamp(2.125rem, 4.2vw, 2.5rem); font-weight: 700; letter-spacing: -0.02em; line-height: 1.12; }
.h2 { font-size: clamp(1.375rem, 2.5vw, 1.5rem); font-weight: 700; letter-spacing: -0.01em; }
.h3 { font-size: 1.125rem; font-weight: 600; }
.h4 { font-size: 1rem;     font-weight: 600; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-utility);
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-xs);
}

.lede { font-size: 1.125rem; line-height: 1.7; }

/* --------------------------------------------------------------------------
   Buttons
   -------------------------------------------------------------------------- */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 6px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  white-space: nowrap;
  min-height: 44px;
}

.button--primary {
  background-color: var(--color-accent);
  color: var(--color-on-accent);
  box-shadow: 0 1px 2px rgba(61,78,154,0.15), 0 8px 20px rgba(61,78,154,0.16);
}
.button--primary:hover {
  background-color: var(--color-accent-dark);
  box-shadow: 0 1px 2px rgba(46,59,122,0.18), 0 10px 24px rgba(46,59,122,0.2);
  text-decoration: none;
}

.button--secondary {
  background-color: transparent;
  color: var(--color-ink);
  border-color: var(--color-line);
}
.button--secondary:hover {
  border-color: var(--color-ink);
  text-decoration: none;
}

.button--on-dark {
  background-color: var(--color-on-accent);
  color: var(--color-accent-dark);
  box-shadow: 0 8px 20px rgba(0,0,0,0.16);
}
.button--on-dark:hover {
  background-color: #e8eaf0;
  text-decoration: none;
}

.button--ghost-light {
  background-color: transparent;
  border: 1.5px solid rgba(255,255,255,0.35);
  color: rgba(255,255,255,0.85);
  min-height: 44px;
}
.button--ghost-light:hover {
  background-color: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.55);
  color: #ffffff;
  text-decoration: none;
}
.button--ghost-light:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */

.header {
  background-color: #303030;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 1.125rem;
  position: relative;
}

.logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}
.logo:hover { opacity: 0.85; }

.logo__img {
  height: 32px;
  width: auto;
  display: block;
}

@media (max-width: 640px) {
  .logo__img { height: 26px; }
}

/* Mobile nav — CSS-only checkbox toggle */
.nav-checkbox {
  position: absolute;
  top: var(--space-sm);
  right: var(--container-padding);
  width: 2.75rem;
  height: 2.75rem;
  margin: 0;
  opacity: 0;
  cursor: pointer;
  z-index: 2;
}

.nav-toggle__button {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.75rem;
  height: 2.75rem;
  color: #ffffff;
  cursor: pointer;
}

.nav-toggle__icon {
  position: relative;
  width: 20px;
  height: 2px;
  background-color: currentColor;
}
.nav-toggle__icon::before,
.nav-toggle__icon::after {
  content: '';
  position: absolute;
  left: 0;
  width: 20px;
  height: 2px;
  background-color: currentColor;
}
.nav-toggle__icon::before { top: -6px; }
.nav-toggle__icon::after  { top:  6px; }

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

.nav {
  display: none;
  position: absolute;
  top: 100%;
  right: var(--container-padding);
  margin-top: 0.5rem;
  width: min(280px, 90vw);
  background-color: #303030;
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius-md);
  padding: var(--space-md);
  flex-direction: column;
  gap: var(--space-md);
  box-shadow: 0 12px 32px rgba(0,0,0,0.28);
}
.nav-checkbox:checked ~ .nav { display: flex; }
.nav-checkbox:focus-visible ~ .nav-toggle__button {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

.nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  list-style: none;
}
.nav__list a {
  color: rgba(255,255,255,0.75);
  font-weight: 500;
  display: block;
  padding-block: 0.625rem;
  text-decoration: none;
}
.nav__list a:hover { color: #ffffff; }

.nav__cta { width: 100%; text-align: center; }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */

.hero__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  padding-block: var(--space-xl) var(--space-lg);
  align-items: flex-start;
}

.hero__content  { max-width: 38rem; }

.hero__subheadline {
  margin-top: var(--space-sm);
  color: var(--color-slate);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.hero__visual {
  width: 100%;
  max-width: 27rem;
}

/* Dark hero variant */
.hero--dark {
  background-color: #303030;
}
.hero--dark .eyebrow        { color: var(--color-accent-warm); }
.hero--dark .h1             { color: #ffffff; }
.hero--dark .hero__subheadline { color: rgba(255,255,255,0.65); }

/* SVG color vars — set on .hero, overridden on .hero--dark */
.hero {
  --hero-line:       var(--color-line);
  --hero-label:      #bbb;
  --hero-grid:       rgba(48,48,48,0.08);
  --hero-structured: var(--color-accent);
}
.hero--dark {
  --hero-line:       rgba(255,255,255,0.15);
  --hero-label:      rgba(255,255,255,0.3);
  --hero-grid:       rgba(255,255,255,0.08);
  --hero-structured: #4daf4e;
}

/* --------------------------------------------------------------------------
   Section header
   -------------------------------------------------------------------------- */

.section-header {
  max-width: 56rem;
  margin-bottom: var(--space-lg);
}
.section-header--center {
  margin-inline: auto;
  text-align: center;
}
.section-header__description {
  margin-top: var(--space-sm);
  color: var(--color-slate);
}

/* --------------------------------------------------------------------------
   CTA section
   -------------------------------------------------------------------------- */

.cta {
  background-color: var(--color-ink);
  color: var(--color-surface-alt);
}
.cta__inner {
  padding-block: var(--space-2xl);
  max-width: 42rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
}
.cta__heading { color: var(--color-surface); }
.cta__body    { color: var(--color-line); }
.cta__button  { margin-top: var(--space-sm); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */

.footer { background-color: #303030; }

.footer__inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-block: var(--space-lg);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-2xs);
}
.footer__tagline {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.68);
  margin-bottom: var(--space-2xs);
}
.footer__location {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.68);
  display: flex;
  align-items: center;
  gap: 0.375rem;
}
.footer__contact-dot {
  color: #4daf4e;
  font-size: 0.625rem;
  line-height: 1;
}

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-md);
  list-style: none;
}
.footer__nav a {
  font-size: 0.9375rem;
  color: rgba(255,255,255,0.68);
  text-decoration: none;
}
.footer__nav a:hover { color: #ffffff; }

.footer__bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding-block: var(--space-sm);
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
}
.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs) var(--space-sm);
  list-style: none;
}
.footer__legal a {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
  text-decoration: none;
}
.footer__legal a:hover { color: rgba(255,255,255,0.8); }

/* --------------------------------------------------------------------------
   Service cards (homepage pillars)
   -------------------------------------------------------------------------- */

.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

.service-card {
  display: flex;
  flex-direction: column;
  height: 100%;
  border-radius: 10px;
  overflow: hidden;
  background-color: var(--color-surface);
  box-shadow: 0 1px 2px rgba(20,24,40,0.04), 0 10px 28px rgba(20,24,40,0.05);
}

.service-card__inner {
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: var(--space-lg);
}

.service-card__icon {
  width: 40px;
  height: 40px;
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-bottom: var(--space-sm);
}
.service-card__icon--discovery   { background-color: var(--color-accent-soft); }
.service-card__icon--improvement { background-color: #fbf0df; }
.service-card__icon--systems     { background-color: #e8f4e8; }

.service-card__eyebrow {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0;
}

.service-card__title   { margin-bottom: var(--space-sm); }
.service-card__description { margin-bottom: var(--space-md); }

.service-card__list {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-line);
  list-style: none;
}

.service-card__list li {
  font-size: 0.9375rem;
  color: var(--color-ink-soft);
  padding-left: var(--space-md);
  position: relative;
}
.service-card__list li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

/* --------------------------------------------------------------------------
   Problem cards (homepage)
   -------------------------------------------------------------------------- */

.problem-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
  list-style: none;
}

.problem-card {
  padding: var(--space-md);
  background-color: var(--color-surface);
  border-radius: 10px;
  box-shadow: 0 1px 2px rgba(20,24,40,0.04), 0 10px 28px rgba(20,24,40,0.05);
}
.problem-card__title       { margin-bottom: var(--space-2xs); }

/* --------------------------------------------------------------------------
   How we work steps (homepage)
   -------------------------------------------------------------------------- */

.steps {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
  list-style: none;
  padding: 0;
}

.step__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1.5px solid var(--color-accent);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}
.step__title { margin-bottom: var(--space-2xs); }

/* --------------------------------------------------------------------------
   Affiliations section (homepage)
   -------------------------------------------------------------------------- */

.affiliations-section { padding-block: var(--space-lg); }

.affiliations-heading {
  font-family: var(--font-display);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-slate);
  text-align: center;
  margin-bottom: var(--space-xs);
}

.affiliations-sub {
  font-size: 0.9375rem;
  color: var(--color-slate);
  text-align: center;
  max-width: 44rem;
  margin-inline: auto;
  margin-bottom: var(--space-lg);
  line-height: 1.6;
}

.affiliations-grid {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg) var(--space-xl);
  list-style: none;
}

.affiliation-logo {
  height: 48px;
  width: auto;
  max-width: 160px;
  object-fit: contain;
  opacity: 0.82;
  pointer-events: none;
  user-select: none;
}
.affiliation-logo--square {
  height: 56px;
  max-width: 56px;
}

/* --------------------------------------------------------------------------
   Service pillars (services page)
   -------------------------------------------------------------------------- */

.pillar {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}
.pillar__intro    { max-width: 42rem; }
.pillar__title    { margin-bottom: var(--space-sm); }
.pillar__description { margin-bottom: var(--space-md); }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2xs);
  list-style: none;
}
.tag {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-accent-dark);
  background-color: var(--color-accent-soft);
  border-radius: 999px;
  padding: var(--space-2xs) var(--space-sm);
}

.pillar__scenarios-label {
  font-family: var(--font-display);
  font-size: 0.9375rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-sm);
}

.scenario-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
}

.scenario-item {
  border-radius: 10px;
  background-color: var(--color-surface);
  box-shadow: 0 1px 2px rgba(20,24,40,0.04), 0 10px 28px rgba(20,24,40,0.05);
  padding: var(--space-sm) var(--space-md);
}
.scenario-item summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
  padding-block: var(--space-2xs);
  padding-right: var(--space-lg);
  position: relative;
}
.scenario-item summary::-webkit-details-marker { display: none; }
.scenario-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: var(--space-2xs);
  font-size: 1.25rem;
  color: var(--color-accent);
  line-height: 1.3;
}
.scenario-item[open] summary::after { content: '\2212'; }

.scenario-item__body { padding-top: var(--space-xs); }
.scenario-item__body p { margin-bottom: var(--space-sm); }
.scenario-item__body p:last-child { margin-bottom: 0; }
.scenario-item__response { color: var(--color-ink-soft); }

/* Jump nav */
.jump-nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm) var(--space-lg);
}
.jump-nav a {
  font-weight: 600;
  color: var(--color-ink);
  font-size: 0.9375rem;
  padding-block: 0.5rem;
  display: inline-block;
  text-decoration: none;
}
.jump-nav a:hover { color: var(--color-accent); }

/* FAQ accordion */
.faq-list {
  max-width: 42rem;
  display: flex;
  flex-direction: column;
}
.faq-item { border-bottom: 1px solid var(--color-line); }
.faq-item summary {
  cursor: pointer;
  list-style: none;
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--color-ink);
  padding: var(--space-sm) 0;
  position: relative;
  padding-right: var(--space-lg);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '+';
  position: absolute;
  right: 0;
  top: var(--space-sm);
  font-size: 1.25rem;
  color: var(--color-accent);
  line-height: 1;
}
.faq-item[open] summary::after { content: '\2212'; }
.faq-item p { margin: 0 0 var(--space-md); color: var(--color-slate); }

/* --------------------------------------------------------------------------
   Case study cards
   -------------------------------------------------------------------------- */

.case-study-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.case-study {
  border-radius: 10px;
  background-color: var(--color-surface);
  box-shadow: 0 1px 2px rgba(20,24,40,0.04), 0 10px 28px rgba(20,24,40,0.05);
  padding: var(--space-lg);
}

.case-study__header {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-bottom: var(--space-md);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-line);
}
.case-study__client   { margin-bottom: var(--space-2xs); }
.case-study__industry { color: var(--color-slate); font-size: 0.9375rem; }

.case-study__meta {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--space-sm);
  flex-shrink: 0;
}

.case-study__logo {
  object-fit: contain;
  width: auto;
}

.case-study__body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-lg);
}

.case-study__block + .case-study__block { margin-top: var(--space-md); }

.case-study__label {
  font-family: var(--font-display);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-xs);
}

.case-study__worksection + .case-study__worksection { margin-top: var(--space-sm); }
.case-study__worksection-title {
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-2xs);
}

.case-study__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2xs);
  list-style: none;
}
.case-study__list li {
  font-size: 0.9375rem;
  color: var(--color-ink-soft);
  padding-left: var(--space-md);
  position: relative;
}
.case-study__list li::before {
  content: '';
  position: absolute;
  left: 2px;
  top: 0.55em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background-color: var(--color-accent);
}
.case-study__block--outcome .case-study__list li::before {
  background-color: var(--color-accent-confirm);
}

/* --------------------------------------------------------------------------
   Contact page
   -------------------------------------------------------------------------- */

.contact-card {
  max-width: 28rem;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-radius: 10px;
  background-color: var(--color-surface-alt);
  box-shadow: 0 1px 2px rgba(20,24,40,0.04), 0 10px 28px rgba(20,24,40,0.05);
}
.contact-card__label {
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 var(--space-2xs);
}
.contact-card__email {
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.contact-card__email:hover { color: var(--color-accent-dark); }
.contact-card__value { color: var(--color-ink-soft); }
.contact-card__note { font-size: 0.875rem; color: var(--color-slate); }
.contact-card__note a {
  color: var(--color-accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}
.contact-card__note a:hover { color: var(--color-ink); }

/* --------------------------------------------------------------------------
   Prose (legal pages)
   -------------------------------------------------------------------------- */

.prose { max-width: 42rem; }
.prose h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
}
.prose p, .prose ul { margin-bottom: var(--space-sm); }
.prose ul { padding-left: 1.25rem; }
.prose li { margin-bottom: var(--space-2xs); }
.prose a  { text-decoration: underline; }

/* --------------------------------------------------------------------------
   Utility classes
   -------------------------------------------------------------------------- */

.services-link, .case-studies-link, .faq-cta, .case-studies-pointer {
  margin-top: var(--space-lg);
  color: var(--color-slate);
}
.services-link   { font-weight: 600; }
.case-studies-link { font-weight: 600; }

/* --------------------------------------------------------------------------
   Media queries
   -------------------------------------------------------------------------- */

@media (min-width: 700px) {
  .problem-grid,
  .service-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
  .footer__inner {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    padding-block: var(--space-lg);
  }
  .footer__nav {
    flex-direction: column;
    gap: var(--space-xs);
    text-align: right;
  }
  .footer__bottom {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }
}

@media (min-width: 900px) {
  .pillar {
    grid-template-columns: minmax(0,1fr) minmax(0,1.3fr);
    gap: var(--space-xl);
    align-items: start;
  }
  .pillar__intro {
    position: sticky;
    top: calc(var(--space-lg) + 64px);
  }
  .case-study__body {
    grid-template-columns: minmax(0,1fr) minmax(0,1.3fr);
    gap: var(--space-xl);
  }
}

@media (min-width: 960px) {
  .service-grid { grid-template-columns: repeat(3, 1fr); }

  .header .nav-checkbox,
  .header .nav-toggle__button { display: none; }

  .header .nav {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
    width: auto;
    margin-top: 0;
    border: none;
    box-shadow: none;
    padding: 0;
    background-color: transparent;
  }
  .nav__list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
  }
  .nav__list a {
    color: rgba(255,255,255,0.72);
    padding-bottom: 2px;
    border-bottom: 1.5px solid transparent;
    padding-block: 0;
  }
  .nav__list a:hover {
    color: #ffffff;
    border-bottom-color: rgba(255,255,255,0.4);
  }
  .nav__list a.active {
    color: #ffffff;
    border-bottom-color: var(--color-accent);
  }
  .nav__cta { width: auto; }

  .hero__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    padding-block: var(--space-2xl);
    gap: 2rem;
  }
  .hero__content {
    flex: 1 1 26rem;
    max-width: 30rem;
  }
  .hero__visual {
    flex: 0 1 32rem;
    max-width: 32rem;
  }
}

@media (max-width: 640px) {
  .section { padding-block: var(--space-xl); }
  .cta__inner { padding-block: var(--space-xl); }
  .affiliations-grid { gap: var(--space-md); }
  .affiliation-logo { height: 40px; max-width: 130px; }
  .affiliation-logo--square { height: 48px; max-width: 48px; }
  .case-study { padding: var(--space-md); }
  .case-study__logo { max-width: 180px; }

  /* Buttons: allow text to wrap on narrow screens, tighten horizontal padding */
  .button {
    white-space: normal;
    text-align: center;
    padding-inline: 1rem;
    font-size: 0.875rem;
  }
}