/* ===================================================
   ADC.CSS - Adaptcourse full-site stylesheet
   brand_prefix: adc
   Palette:
     bg-page:          #FAFAF8
     bg-white:         #FFFFFF
     bg-dark:          #1C2B35
     bg-dark-alt:      #152029
     bg-teal-subtle:   #EDF6F6
     bg-teal-medium:   #D4EEEE
     surface-card:     #FFFFFF
     border-default:   #E2E8E8
     border-teal:      #A8D4D4
     text-primary-on-light: #1C2B35
     text-muted-on-light:   #5A7A80
     text-faint-on-light:   #8AACB0
     text-primary-on-dark:  #F0F7F7
     text-muted-on-dark:    #9BBFC4
     brand-teal:       #0D7377
     brand-teal-hover: #0B6065
     brand-teal-light: #14A0A5
     accent-amber:     #F59E0B
     accent-amber-hover: #D97706
     accent-amber-light: #FEF3C7
=================================================== */

/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Nunito Sans', system-ui, -apple-system, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  color: #1C2B35;
  background-color: #FAFAF8;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }

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

ul, ol { list-style: none; }

button { cursor: pointer; font-family: inherit; }

/* === TYPOGRAPHY === */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Sora', system-ui, -apple-system, sans-serif;
  line-height: 1.2;
  color: #1C2B35;
}

h1 { font-size: clamp(2.2rem, 5vw, 4.5rem); font-weight: 800; }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.5rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2.5vw, 1.75rem); font-weight: 700; }
h4 { font-size: clamp(1rem, 2vw, 1.375rem); font-weight: 700; }
h5 { font-size: 1.1rem; font-weight: 700; }
h6 { font-size: 1rem; font-weight: 600; }

p { margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

code, pre {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.875rem;
}

.adc-mono {
  font-family: 'IBM Plex Mono', monospace;
}

/* === CSS VARIABLES === */
:root {
  --bg-page: #FAFAF8;
  --bg-white: #FFFFFF;
  --bg-dark: #1C2B35;
  --bg-dark-alt: #152029;
  --bg-teal-subtle: #EDF6F6;
  --bg-teal-medium: #D4EEEE;
  --surface-card: #FFFFFF;
  --border-default: #E2E8E8;
  --border-teal: #A8D4D4;
  --text-primary-on-light: #1C2B35;
  --text-muted-on-light: #5A7A80;
  --text-faint-on-light: #8AACB0;
  --text-primary-on-dark: #F0F7F7;
  --text-muted-on-dark: #9BBFC4;
  --brand-teal: #0D7377;
  --brand-teal-hover: #0B6065;
  --brand-teal-light: #14A0A5;
  --accent-amber: #F59E0B;
  --accent-amber-hover: #D97706;
  --accent-amber-light: #FEF3C7;
  --shadow-soft: 0 2px 8px rgba(13,115,119,0.08);
  --shadow-hover: 0 6px 20px rgba(13,115,119,0.14);
  --radius-card: 8px;
  --radius-btn: 6px;
  --radius-tag: 4px;
  --section-py: 96px;
  --container-max: 1160px;
  --container-px: clamp(1.25rem, 4vw, 2.5rem);
}

/* === CONTAINER === */
.adc-container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

/* === SECTION BACKGROUNDS === */
.adc-section {
  padding-block: var(--section-py);
}

.adc-section--dark {
  background-color: var(--bg-dark);
}

.adc-section--dark-alt {
  background-color: var(--bg-dark-alt);
}

.adc-section--light {
  background-color: var(--bg-page);
}

.adc-section--light-alt {
  background-color: var(--bg-teal-subtle);
}

.adc-section--white {
  background-color: var(--bg-white);
}

/* === BUTTONS === */
.adc-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-btn);
  font-family: 'Nunito Sans', system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  line-height: 1;
  transition: background-color 200ms ease-out, color 200ms ease-out, border-color 200ms ease-out, box-shadow 200ms ease-out;
  white-space: nowrap;
  border: 2px solid transparent;
  text-decoration: none;
}

.adc-btn--primary {
  background-color: var(--brand-teal);
  color: #FFFFFF;
  border-color: var(--brand-teal);
}

.adc-btn--primary:hover {
  background-color: var(--brand-teal-hover);
  border-color: var(--brand-teal-hover);
  color: #FFFFFF;
  box-shadow: var(--shadow-hover);
}

.adc-btn--outline-dark {
  background-color: transparent;
  color: var(--brand-teal);
  border-color: var(--brand-teal);
}

.adc-btn--outline-dark:hover {
  background-color: var(--brand-teal);
  color: #FFFFFF;
}

.adc-btn--outline-light {
  background-color: transparent;
  color: var(--text-primary-on-dark);
  border-color: rgba(240,247,247,0.5);
}

.adc-btn--outline-light:hover {
  border-color: var(--text-primary-on-dark);
  color: var(--text-primary-on-dark);
}

.adc-btn--ghost-on-dark {
  background-color: transparent;
  color: var(--text-primary-on-dark);
  border-color: rgba(240,247,247,0.4);
}

.adc-btn--ghost-on-dark:hover {
  background-color: rgba(240,247,247,0.08);
  border-color: rgba(240,247,247,0.7);
  color: var(--text-primary-on-dark);
}

.adc-btn--ghost-on-light {
  background-color: transparent;
  color: var(--text-primary-on-light);
  border-color: var(--border-default);
}

.adc-btn--ghost-on-light:hover {
  border-color: var(--brand-teal);
  color: var(--brand-teal);
}

.adc-btn--amber {
  background-color: var(--accent-amber);
  color: var(--bg-dark);
  border-color: var(--accent-amber);
}

.adc-btn--amber:hover {
  background-color: var(--accent-amber-hover);
  border-color: var(--accent-amber-hover);
  color: var(--bg-dark);
}

.adc-btn--sm {
  padding: 0.5rem 1rem;
  font-size: 0.875rem;
}

.adc-btn--lg {
  padding: 0.9375rem 2rem;
  font-size: 1rem;
}

/* === NAVIGATION === */
.adc-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  transition: background-color 250ms ease-out, backdrop-filter 250ms ease-out, box-shadow 250ms ease-out;
}

.adc-nav__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  height: 68px;
  display: flex;
  align-items: center;
  gap: 2rem;
}

.adc-nav__logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  text-decoration: none;
}

.adc-nav__logo img {
  height: 32px;
  width: auto;
}

.adc-nav__logo--dark { display: none; }
.adc-nav__logo--light { display: block; }

.adc-nav__links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex: 1;
  margin-left: 1.5rem;
}

.adc-nav__link {
  padding: 0.5rem 0.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: 4px;
  transition: color 200ms ease-out, background-color 200ms ease-out;
  white-space: nowrap;
  font-family: 'Nunito Sans', system-ui, sans-serif;
}

.adc-nav__cta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
  margin-left: auto;
}

.adc-nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  padding: 0.5rem;
  margin-left: auto;
  cursor: pointer;
}

.adc-nav__hamburger-bar {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  transition: transform 200ms ease-out, opacity 200ms ease-out, background-color 200ms ease-out;
}

.adc-nav__hamburger--open .adc-nav__hamburger-bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.adc-nav__hamburger--open .adc-nav__hamburger-bar:nth-child(2) { opacity: 0; }
.adc-nav__hamburger--open .adc-nav__hamburger-bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* dark-top pages: nav overlaps dark hero, transparent + light links */
.adc-page--dark-top .adc-nav {
  background-color: transparent;
}

.adc-page--dark-top .adc-nav .adc-nav__logo--dark { display: none; }
.adc-page--dark-top .adc-nav .adc-nav__logo--light { display: block; }

.adc-page--dark-top .adc-nav .adc-nav__link {
  color: var(--text-primary-on-dark);
}

.adc-page--dark-top .adc-nav .adc-nav__link:hover {
  color: #FFFFFF;
  background-color: rgba(255,255,255,0.08);
}

.adc-page--dark-top .adc-nav .adc-nav__hamburger-bar {
  background-color: var(--text-primary-on-dark);
}

.adc-page--dark-top .adc-nav .adc-btn--ghost-on-light {
  color: var(--text-primary-on-dark);
  border-color: rgba(240,247,247,0.35);
}

.adc-page--dark-top .adc-nav .adc-btn--ghost-on-light:hover {
  border-color: var(--text-primary-on-dark);
  color: var(--text-primary-on-dark);
  background-color: rgba(255,255,255,0.08);
}

/* dark-top scrolled: add dark bg */
.adc-page--dark-top .adc-nav--scrolled {
  background-color: rgba(28,43,53,0.97);
  backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.adc-page--dark-top .adc-nav--scrolled .adc-nav__logo--dark { display: none !important; }
.adc-page--dark-top .adc-nav--scrolled .adc-nav__logo--light { display: block !important; }

/* light-top pages: nav sticky, white bg, dark links */
.adc-page--light-top .adc-nav {
  position: sticky;
  background-color: var(--bg-white);
  box-shadow: 0 1px 0 var(--border-default);
}

.adc-page--light-top .adc-nav .adc-nav__logo--dark { display: block; }
.adc-page--light-top .adc-nav .adc-nav__logo--light { display: none; }

.adc-page--light-top .adc-nav .adc-nav__link {
  color: var(--text-primary-on-light);
}

.adc-page--light-top .adc-nav .adc-nav__link:hover {
  color: var(--brand-teal);
  background-color: var(--bg-teal-subtle);
}

.adc-page--light-top .adc-nav .adc-nav__hamburger-bar {
  background-color: var(--text-primary-on-light);
}

.adc-page--light-top .adc-nav .adc-btn--ghost-on-light {
  color: var(--text-primary-on-light);
  border-color: var(--border-default);
}

.adc-page--light-top .adc-nav .adc-btn--ghost-on-light:hover {
  border-color: var(--brand-teal);
  color: var(--brand-teal);
}

/* light-top scrolled: subtle shadow increase */
.adc-page--light-top .adc-nav--scrolled {
  box-shadow: 0 2px 12px rgba(13,115,119,0.1);
}

/* === SECTION LABELS === */
.adc-section-label {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-teal);
  margin-bottom: 1rem;
}

.adc-section--dark .adc-section-label,
.adc-section--dark-alt .adc-section-label {
  color: var(--brand-teal-light);
}

/* === SECTION HEADLINES === */
.adc-section-headline {
  color: var(--text-primary-on-light);
  margin-bottom: 1.25rem;
}

.adc-section--dark .adc-section-headline,
.adc-section--dark-alt .adc-section-headline {
  color: var(--text-primary-on-dark);
}

.adc-section-subhead {
  color: var(--text-muted-on-light);
  font-size: 1.0625rem;
  max-width: 640px;
}

.adc-section--dark .adc-section-subhead,
.adc-section--dark-alt .adc-section-subhead {
  color: var(--text-muted-on-dark);
}

/* centered header block */
.adc-section-header {
  text-align: center;
  max-width: 720px;
  margin-inline: auto;
  margin-bottom: 4rem;
}

.adc-section-header .adc-section-subhead {
  margin-inline: auto;
}

/* left-aligned header block */
.adc-section-header--left {
  text-align: left;
  max-width: none;
  margin-inline: 0;
}

.adc-section-header--left .adc-section-subhead {
  margin-inline: 0;
}

/* === HERO === */
.adc-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-block: 120px 80px;
  overflow: hidden;
  background-color: var(--bg-dark);
}

.adc-hero__bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  opacity: 0.35;
  z-index: 0;
}

.adc-hero__inner {
  position: relative;
  z-index: 1;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.adc-hero__content {
  max-width: 580px;
}

.adc-hero__label {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--brand-teal-light);
  margin-bottom: 1.25rem;
}

.adc-hero__h1 {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.12;
  color: var(--text-primary-on-dark);
  margin-bottom: 1.5rem;
}

.adc-hero__sub {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  line-height: 1.75;
  color: var(--text-muted-on-dark);
  margin-bottom: 2.5rem;
  max-width: 520px;
}

.adc-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.adc-hero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* hero learning path SVG container */
.adc-hero__path-svg {
  width: 100%;
  max-width: 480px;
}

/* === PROOF STRIP === */
.adc-proof-strip {
  padding-block: 64px;
  background-color: var(--bg-page);
}

.adc-proof-strip__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.adc-proof-stat {
  text-align: center;
  padding: 2rem 1.5rem;
  border-radius: var(--radius-card);
  border: 1px solid var(--border-default);
  background-color: var(--bg-white);
}

.adc-proof-stat__number {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(2rem, 3.5vw, 2.875rem);
  font-weight: 800;
  color: var(--accent-amber);
  line-height: 1;
  margin-bottom: 0.5rem;
}

.adc-proof-stat__label {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text-primary-on-light);
  margin-bottom: 0.5rem;
}

.adc-proof-stat__source {
  font-size: 0.75rem;
  color: var(--text-faint-on-light);
  font-family: 'IBM Plex Mono', monospace;
}

/* === PROBLEM SECTION === */
.adc-problem__layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.adc-problem__copy p {
  color: var(--text-muted-on-light);
  font-size: 1.0625rem;
}

.adc-problem__visual {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
}

/* student state bars in problem visual */
.adc-student-states {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.adc-student-state {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.adc-student-state__label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text-muted-on-light);
  font-family: 'IBM Plex Mono', monospace;
  display: flex;
  justify-content: space-between;
}

.adc-student-state__track {
  height: 10px;
  background-color: var(--bg-teal-subtle);
  border-radius: 99px;
  overflow: hidden;
}

.adc-student-state__fill {
  height: 100%;
  border-radius: 99px;
  background-color: var(--brand-teal);
}

.adc-student-state__fill--amber {
  background-color: var(--accent-amber);
}

.adc-student-state__fill--light {
  background-color: var(--border-teal);
}

/* === HOW IT WORKS PREVIEW === */
.adc-hiw-timeline {
  position: relative;
  display: flex;
  gap: 0;
  justify-content: space-between;
}

.adc-hiw-timeline::before {
  content: '';
  position: absolute;
  top: 28px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(to right, var(--brand-teal), var(--brand-teal-light), var(--accent-amber));
  z-index: 0;
}

.adc-hiw-step {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 1rem;
}

.adc-hiw-step__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--bg-white);
  border: 2px solid var(--border-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  box-shadow: var(--shadow-soft);
  flex-shrink: 0;
}

.adc-hiw-step__icon svg {
  width: 24px;
  height: 24px;
}

.adc-hiw-step__num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  color: var(--brand-teal);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 0.375rem;
}

.adc-hiw-step__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.375rem;
}

.adc-hiw-step__body {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.55;
}

.adc-hiw-cta {
  text-align: center;
  margin-top: 3rem;
}

/* === FEATURES ASYMMETRIC === */
.adc-features-asym {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: auto auto;
  gap: 1.5rem;
}

.adc-feat-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  transition: box-shadow 200ms ease-out, transform 200ms ease-out;
}

.adc-feat-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.adc-feat-card--hero {
  grid-column: 1;
  grid-row: 1 / 3;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.adc-feat-card--sm {
  grid-column: 2;
}

.adc-feat-card__icon {
  width: 48px;
  height: 48px;
  background-color: var(--bg-teal-subtle);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
}

.adc-feat-card__icon svg {
  width: 24px;
  height: 24px;
}

.adc-feat-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.75rem;
}

.adc-feat-card--hero .adc-feat-card__title {
  font-size: 1.375rem;
}

.adc-feat-card__body {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.65;
}

/* === WHO ITS FOR === */
.adc-buyer-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.adc-buyer-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2.5rem 2rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.adc-buyer-card__icon {
  width: 52px;
  height: 52px;
  background-color: var(--bg-teal-subtle);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.adc-buyer-card__icon svg {
  width: 26px;
  height: 26px;
}

.adc-buyer-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
}

.adc-buyer-card__persona {
  font-size: 0.8125rem;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--brand-teal);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.adc-buyer-card__pains {
  padding-left: 0;
}

.adc-buyer-card__pains li {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  padding-left: 1.25rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.adc-buyer-card__pains li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.6em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--brand-teal);
}

.adc-buyer-card__value {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  border-top: 1px solid var(--border-default);
  padding-top: 1rem;
  margin-top: auto;
}

/* === TESTIMONIALS === */
.adc-testimonials {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
}

.adc-testimonial {
  position: relative;
  padding: 2.5rem;
  border-radius: var(--radius-card);
  background-color: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.09);
}

.adc-testimonial__quote-mark {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 5rem;
  line-height: 1;
  color: var(--brand-teal-light);
  margin-bottom: -1.5rem;
  display: block;
  opacity: 0.5;
}

.adc-testimonial__text {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--text-primary-on-dark);
  margin-bottom: 1.5rem;
  font-style: italic;
}

.adc-testimonial__author {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.adc-testimonial__name {
  font-weight: 700;
  font-size: 0.9375rem;
  color: var(--text-primary-on-dark);
}

.adc-testimonial__role {
  font-size: 0.8125rem;
  color: var(--text-muted-on-dark);
}

/* === INTEGRATION STRIP === */
.adc-integration {
  text-align: center;
}

.adc-integration__intro {
  font-size: 1rem;
  color: var(--text-muted-on-light);
  margin-bottom: 2.5rem;
}

.adc-integration__items {
  display: flex;
  justify-content: center;
  gap: 3rem;
  flex-wrap: wrap;
  align-items: center;
}

.adc-integration__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.adc-integration__item-icon {
  width: 64px;
  height: 64px;
  background-color: var(--bg-white);
  border-radius: 12px;
  border: 1px solid var(--border-default);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
}

.adc-integration__item-icon svg {
  width: 32px;
  height: 32px;
}

.adc-integration__item-label {
  font-size: 0.8125rem;
  font-family: 'IBM Plex Mono', monospace;
  color: var(--text-muted-on-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* === CTA BOTTOM === */
.adc-cta-bottom {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}

.adc-cta-bottom .adc-section-headline {
  color: var(--text-primary-on-dark);
  margin-bottom: 1rem;
}

.adc-cta-bottom .adc-section-subhead {
  color: var(--text-muted-on-dark);
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

.adc-cta-bottom__actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* === FOOTER === */
.adc-footer {
  background-color: var(--bg-dark);
  padding-block: 64px 32px;
  color: var(--text-primary-on-dark);
}

.adc-footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.adc-footer__brand p {
  font-size: 0.9375rem;
  color: var(--text-muted-on-dark);
  margin-top: 1rem;
  max-width: 280px;
}

.adc-footer__col-title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary-on-dark);
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.adc-footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.adc-footer__links a {
  font-size: 0.9375rem;
  color: var(--text-muted-on-dark);
  transition: color 200ms ease-out;
  text-decoration: none;
}

.adc-footer__links a:hover {
  color: var(--text-primary-on-dark);
}

.adc-footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.adc-footer__copyright {
  font-size: 0.875rem;
  color: var(--text-muted-on-dark);
}

.adc-footer__tagline {
  font-size: 0.875rem;
  color: var(--text-muted-on-dark);
  font-style: italic;
}

.adc-footer__email a {
  font-size: 0.875rem;
  color: var(--brand-teal-light);
  text-decoration: none;
  transition: color 200ms ease-out;
}

.adc-footer__email a:hover {
  color: var(--text-primary-on-dark);
}

/* === FADE-UP ANIMATION === */
.adc-fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 400ms ease-out, transform 400ms ease-out;
}

.adc-fade-up--visible {
  opacity: 1;
  transform: translateY(0);
}

/* === TAGS / BADGES === */
.adc-tag {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-tag);
  font-size: 0.75rem;
  font-weight: 600;
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.adc-tag--teal {
  background-color: var(--bg-teal-subtle);
  color: var(--brand-teal);
  border: 1px solid var(--border-teal);
}

.adc-tag--amber {
  background-color: var(--accent-amber-light);
  color: var(--accent-amber-hover);
}

.adc-tag--dark {
  background-color: rgba(255,255,255,0.1);
  color: var(--text-primary-on-dark);
}

/* === SUB-PAGE HERO === */
.adc-subhero {
  padding-block: 72px 56px;
  background-color: var(--bg-page);
  position: relative;
  overflow: hidden;
}

.adc-subhero::after {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 240px;
  height: 240px;
  background: radial-gradient(circle, rgba(13,115,119,0.08) 0%, transparent 70%);
  z-index: 0;
}

.adc-subhero__inner {
  position: relative;
  z-index: 1;
}

.adc-subhero--dark {
  background-color: var(--bg-dark);
  padding-block: 88px 72px;
}

.adc-subhero--dark::after {
  background: radial-gradient(circle, rgba(20,160,165,0.12) 0%, transparent 70%);
}

.adc-subhero__layout {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3rem;
  align-items: center;
}

.adc-subhero__label {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-teal);
  margin-bottom: 1rem;
}

.adc-subhero--dark .adc-subhero__label {
  color: var(--brand-teal-light);
}

.adc-subhero__h1 {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(1.875rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary-on-light);
  margin-bottom: 1rem;
}

.adc-subhero--dark .adc-subhero__h1 {
  color: var(--text-primary-on-dark);
}

.adc-subhero__sub {
  font-size: 1.0625rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
}

.adc-subhero--dark .adc-subhero__sub {
  color: var(--text-muted-on-dark);
}

.adc-subhero__visual {
  display: flex;
  align-items: center;
  justify-content: center;
}

/* === HOW IT WORKS PAGE === */
.adc-hw-walkthrough {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.adc-hw-step {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding-block: 3rem;
  border-bottom: 1px solid var(--border-default);
}

.adc-hw-step:last-child {
  border-bottom: none;
}

.adc-hw-step--reverse .adc-hw-step__content { order: 2; }
.adc-hw-step--reverse .adc-hw-step__visual { order: 1; }

.adc-hw-step__num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-teal);
  margin-bottom: 0.5rem;
}

.adc-hw-step__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.75rem;
}

.adc-hw-step__body {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
}

.adc-hw-step__icon-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--bg-teal-subtle);
  border-radius: 12px;
  padding: 2.5rem;
}

/* response type cards 2x2 */
.adc-response-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.adc-response-card {
  padding: 1.75rem;
  border-radius: var(--radius-card);
  border: 1px solid var(--border-default);
  background-color: var(--bg-white);
  box-shadow: var(--shadow-soft);
}

.adc-response-card__type {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-teal);
  margin-bottom: 0.5rem;
}

.adc-response-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.5rem;
}

.adc-response-card__body {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.6;
}

/* === PRICING PAGE === */
.adc-pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
}

.adc-pricing-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.adc-pricing-card--featured {
  background-color: var(--bg-teal-subtle);
  border-color: var(--brand-teal);
  border-width: 2px;
  position: relative;
}

.adc-pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--brand-teal);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.25rem 0.875rem;
  border-radius: 99px;
  white-space: nowrap;
  font-family: 'Nunito Sans', system-ui, sans-serif;
}

.adc-pricing-card__tier {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
}

.adc-pricing-card--featured .adc-pricing-card__tier {
  color: var(--text-primary-on-light);
}

.adc-pricing-card__tagline {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  margin-top: -0.75rem;
}

.adc-pricing-card__price {
  display: flex;
  align-items: baseline;
  gap: 0.375rem;
}

.adc-pricing-card__amount {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--brand-teal);
  line-height: 1;
}

.adc-pricing-card__custom {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: var(--brand-teal);
  line-height: 1;
}

.adc-pricing-card__unit {
  font-size: 0.8125rem;
  color: var(--text-muted-on-light);
}

.adc-pricing-card__cap {
  font-size: 0.8125rem;
  color: var(--text-muted-on-light);
  font-family: 'IBM Plex Mono', monospace;
}

.adc-pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
  flex: 1;
}

.adc-pricing-card__features li {
  font-size: 0.9rem;
  color: var(--text-muted-on-light);
  padding-left: 1.5rem;
  position: relative;
}

.adc-pricing-card__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.45em;
  width: 14px;
  height: 14px;
  background-color: var(--brand-teal);
  border-radius: 50%;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 12'%3E%3Cpath d='M2 6l3 3 5-5' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E");
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
}

.adc-pricing-card__cta {
  margin-top: auto;
}

.adc-pricing-note {
  text-align: center;
  margin-top: 2rem;
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
}

/* === FAQ ACCORDION === */
.adc-faq {
  max-width: 720px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.adc-faq__item {
  border-bottom: 1px solid var(--border-default);
}

.adc-faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.25rem;
  background: none;
  border: none;
  text-align: left;
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  cursor: pointer;
  transition: color 200ms ease-out;
}

.adc-faq__question:hover {
  color: var(--brand-teal);
}

.adc-faq__caret {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--brand-teal);
  transition: transform 200ms ease-out;
}

.adc-faq__item--open .adc-faq__caret {
  transform: rotate(180deg);
}

.adc-faq__answer {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height 300ms ease-out, padding 300ms ease-out;
  padding-bottom: 0;
}

.adc-faq__item--open .adc-faq__answer {
  max-height: 400px;
  padding-bottom: 1.25rem;
}

/* === FOR DISTRICTS / FOR PLATFORMS === */
.adc-pain-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.adc-pain-card {
  padding: 1.75rem;
  border-radius: var(--radius-card);
  background-color: var(--bg-white);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
}

.adc-pain-card__icon {
  width: 44px;
  height: 44px;
  background-color: var(--accent-amber-light);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.adc-pain-card__icon svg {
  width: 22px;
  height: 22px;
  color: var(--accent-amber-hover);
}

.adc-pain-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.5rem;
}

.adc-pain-card__body {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.6;
}

.adc-feature-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.adc-feature-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.adc-feature-item__icon {
  width: 40px;
  height: 40px;
  background-color: var(--bg-teal-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.adc-feature-item__icon svg {
  width: 20px;
  height: 20px;
  color: var(--brand-teal);
}

.adc-feature-item__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.25rem;
}

.adc-feature-item__body {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.6;
}

/* case snapshot */
.adc-case-snapshot {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2.5rem;
  align-items: start;
}

.adc-case-snapshot__meta {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.adc-case-snapshot__org {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
}

.adc-case-snapshot__detail {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  font-family: 'IBM Plex Mono', monospace;
}

.adc-case-snapshot__body p {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
}

/* === FOR PLATFORMS: API MOCK === */
.adc-api-mock {
  background-color: var(--bg-dark);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
}

.adc-api-mock__bar {
  background-color: rgba(255,255,255,0.05);
  padding: 0.75rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.adc-api-mock__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: rgba(255,255,255,0.2);
}

.adc-api-mock__label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted-on-dark);
  margin-left: 0.5rem;
}

.adc-api-mock__code {
  padding: 1.5rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--text-primary-on-dark);
  overflow-x: auto;
}

.adc-code-kw { color: #14A0A5; }
.adc-code-str { color: #F59E0B; }
.adc-code-key { color: #9BBFC4; }
.adc-code-num { color: #F0F7F7; }
.adc-code-cmt { color: #5A7A80; }

/* integration path cards */
.adc-integration-paths {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.adc-integration-path {
  padding: 1.75rem;
  border-radius: var(--radius-card);
  background-color: var(--bg-white);
  border: 1px solid var(--border-default);
  text-align: center;
}

.adc-integration-path__icon {
  width: 52px;
  height: 52px;
  background-color: var(--bg-teal-subtle);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.adc-integration-path__icon svg {
  width: 26px;
  height: 26px;
  color: var(--brand-teal);
}

.adc-integration-path__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.5rem;
}

.adc-integration-path__body {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.6;
}

/* === CASE STUDIES PAGE === */
.adc-case-cards {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.adc-case-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
}

.adc-case-card__header {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
  margin-bottom: 1.5rem;
}

.adc-case-card__dot {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background-color: var(--bg-teal-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.adc-case-card__dot svg {
  width: 24px;
  height: 24px;
  color: var(--brand-teal);
}

.adc-case-card__org {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.25rem;
}

.adc-case-card__context {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  font-family: 'IBM Plex Mono', monospace;
}

.adc-case-card__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.adc-case-card__section-title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-teal);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.adc-case-card__text {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
}

/* === ABOUT PAGE === */
.adc-founder-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: start;
  margin-bottom: 3rem;
}

.adc-founder-portrait {
  border-radius: var(--radius-card);
  overflow: hidden;
  aspect-ratio: 3/4;
  background-color: var(--bg-teal-subtle);
}

.adc-founder-portrait img {
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: top;
  aspect-ratio: 3/4;
}

.adc-founder-name {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.25rem;
}

.adc-founder-title {
  font-size: 0.875rem;
  color: var(--brand-teal);
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}

.adc-founder-bio {
  font-size: 1rem;
  color: var(--text-muted-on-light);
  line-height: 1.75;
}

.adc-team-secondary {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-top: 2.5rem;
}

.adc-team-member {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1.5rem;
  background-color: var(--bg-page);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-default);
}

.adc-team-avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--brand-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 800;
  color: #FFFFFF;
  flex-shrink: 0;
}

.adc-team-member__name {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.125rem;
}

.adc-team-member__title {
  font-size: 0.8125rem;
  color: var(--brand-teal);
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.adc-team-member__bio {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.6;
}

.adc-mission-block {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
}

.adc-mission-block__quote {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary-on-light);
  font-style: italic;
}

.adc-contact-block {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.adc-contact-item {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.adc-contact-item__label {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted-on-dark);
}

.adc-contact-item__value {
  font-size: 1rem;
  color: var(--text-primary-on-dark);
  font-weight: 600;
}

.adc-contact-item__value a {
  color: var(--brand-teal-light);
  text-decoration: none;
  transition: color 200ms ease-out;
}

.adc-contact-item__value a:hover {
  color: var(--text-primary-on-dark);
}

/* === BLOG INDEX PAGE === */
.adc-blog-featured {
  margin-bottom: 2.5rem;
}

.adc-blog-featured-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 200ms ease-out;
}

.adc-blog-featured-card:hover {
  box-shadow: var(--shadow-hover);
}

.adc-blog-featured-card__img {
  aspect-ratio: 16/9;
  object-fit: cover;
  width: 100%;
  height: auto;
  display: block;
}

.adc-blog-featured-card__content {
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.75rem;
}

.adc-blog-featured-card__meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-faint-on-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.adc-blog-featured-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  line-height: 1.3;
}

.adc-blog-featured-card__excerpt {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.65;
}

.adc-blog-featured-card__link {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-teal);
  margin-top: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.375rem;
  transition: gap 200ms ease-out;
}

.adc-blog-featured-card:hover .adc-blog-featured-card__link {
  gap: 0.625rem;
}

.adc-blog-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.adc-blog-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  display: block;
  transition: box-shadow 200ms ease-out, transform 200ms ease-out;
}

.adc-blog-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.adc-blog-card__cover {
  aspect-ratio: 3/2;
  object-fit: cover;
  width: 100%;
  height: auto;
  display: block;
  background-color: var(--bg-teal-subtle);
}

.adc-blog-card__body {
  padding: 1.375rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.adc-blog-card__date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-faint-on-light);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.adc-blog-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  line-height: 1.35;
}

.adc-blog-card__excerpt {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.6;
}

.adc-blog-card__read {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--brand-teal);
  margin-top: 0.25rem;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
}

/* === ARTICLE TEMPLATE PAGE === */
.adc-article-page {
  background-color: var(--bg-white);
}

.adc-article-hero {
  padding-block: 56px 40px;
  background-color: var(--bg-page);
}

.adc-article-hero__inner {
  max-width: 840px;
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.adc-article-hero__meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-faint-on-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.adc-article-hero__h1 {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary-on-light);
  margin-bottom: 1rem;
}

.adc-article-hero__sub {
  font-size: 1.0625rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
}

.adc-article-cover {
  max-width: 900px;
  margin-inline: auto;
  padding-inline: var(--container-px);
  margin-block: 2.5rem;
}

.adc-article-cover img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-card);
  aspect-ratio: 3/2;
}

.adc-article-body {
  max-width: 720px;
  margin-inline: auto;
  padding-inline: var(--container-px);
  padding-block: 0 4rem;
  background-color: var(--bg-white);
}

.adc-article-body h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-top: 2.5rem;
  margin-bottom: 0.875rem;
}

.adc-article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.adc-article-body p {
  font-size: 1rem;
  color: var(--text-primary-on-light);
  line-height: 1.8;
  margin-bottom: 1.25rem;
}

.adc-article-body ul,
.adc-article-body ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.adc-article-body ul { list-style: disc; }
.adc-article-body ol { list-style: decimal; }

.adc-article-body li {
  font-size: 1rem;
  color: var(--text-primary-on-light);
  line-height: 1.75;
  margin-bottom: 0.4rem;
}

.adc-article-body blockquote {
  border-left: 3px solid var(--brand-teal);
  padding-left: 1.25rem;
  margin-block: 1.5rem;
  font-style: italic;
  color: var(--text-muted-on-light);
}

.adc-article-body pre {
  background-color: var(--bg-dark);
  color: var(--text-primary-on-dark);
  padding: 1.25rem;
  border-radius: var(--radius-card);
  overflow-x: auto;
  margin-bottom: 1.25rem;
  font-size: 0.875rem;
}

.adc-article-body code {
  background-color: var(--bg-teal-subtle);
  color: var(--brand-teal);
  padding: 0.125rem 0.375rem;
  border-radius: 3px;
  font-size: 0.875em;
}

.adc-article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
  border-radius: 0;
}

.adc-article-body img {
  max-width: 100%;
  border-radius: var(--radius-card);
  margin-block: 1.5rem;
}

/* article back nav */
.adc-article-back {
  padding-block: 1.25rem;
  background-color: var(--bg-page);
  border-bottom: 1px solid var(--border-default);
}

.adc-article-back__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.adc-article-back a {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-teal);
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  text-decoration: none;
  transition: gap 200ms ease-out;
}

.adc-article-back a:hover {
  gap: 0.625rem;
}

/* === CONTACT PAGE === */
.adc-contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.adc-contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.adc-form-group {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.adc-form-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-primary-on-light);
}

.adc-form-input,
.adc-form-select,
.adc-form-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border-default);
  border-radius: 6px;
  font-family: 'Nunito Sans', system-ui, sans-serif;
  font-size: 0.9375rem;
  color: var(--text-primary-on-light);
  background-color: var(--bg-white);
  transition: border-color 200ms ease-out, box-shadow 200ms ease-out;
  outline: none;
}

.adc-form-input:focus,
.adc-form-select:focus,
.adc-form-textarea:focus {
  border-color: var(--brand-teal);
  box-shadow: 0 0 0 3px rgba(13,115,119,0.12);
}

.adc-form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.adc-contact-info {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.adc-contact-info__item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
}

.adc-contact-info__icon {
  width: 40px;
  height: 40px;
  background-color: var(--bg-teal-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.adc-contact-info__icon svg {
  width: 20px;
  height: 20px;
  color: var(--brand-teal);
}

.adc-contact-info__label {
  font-size: 0.75rem;
  font-family: 'IBM Plex Mono', monospace;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-faint-on-light);
  margin-bottom: 0.25rem;
}

.adc-contact-info__value {
  font-size: 0.9375rem;
  color: var(--text-primary-on-light);
  font-weight: 600;
}

.adc-contact-info__value a {
  color: var(--brand-teal);
  text-decoration: none;
  transition: color 200ms ease-out;
}

.adc-contact-info__value a:hover {
  color: var(--brand-teal-hover);
}

/* map placeholder */
.adc-map-pin {
  background-color: var(--bg-teal-subtle);
  border-radius: var(--radius-card);
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-teal);
  margin-top: 1.5rem;
}

/* === AUTH PAGES === */
.adc-auth-page {
  min-height: 100vh;
  background-color: var(--bg-teal-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem var(--container-px);
}

.adc-auth-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  width: 100%;
  max-width: 440px;
  box-shadow: 0 4px 24px rgba(13,115,119,0.12);
  border: 1px solid var(--border-default);
}

.adc-auth-card__logo {
  display: flex;
  justify-content: center;
  margin-bottom: 1.75rem;
}

.adc-auth-card__logo img {
  height: 30px;
  width: auto;
}

.adc-auth-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  text-align: center;
  margin-bottom: 0.375rem;
}

.adc-auth-card__sub {
  font-size: 0.9rem;
  color: var(--text-muted-on-light);
  text-align: center;
  margin-bottom: 1.75rem;
}

.adc-auth-form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.adc-auth-divider {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-faint-on-light);
  margin-block: 0.5rem;
  position: relative;
}

.adc-auth-divider::before,
.adc-auth-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 42%;
  height: 1px;
  background-color: var(--border-default);
}

.adc-auth-divider::before { left: 0; }
.adc-auth-divider::after { right: 0; }

.adc-auth-link-row {
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
}

.adc-auth-link-row a {
  color: var(--brand-teal);
  font-weight: 600;
  text-decoration: none;
  transition: color 200ms ease-out;
}

.adc-auth-link-row a:hover {
  color: var(--brand-teal-hover);
}

.adc-auth-legal {
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-faint-on-light);
  margin-top: 1.25rem;
  line-height: 1.6;
}

.adc-auth-legal a {
  color: var(--text-muted-on-light);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 200ms ease-out;
}

.adc-auth-legal a:hover {
  color: var(--brand-teal);
}

/* === LEGAL PAGES === */
.adc-legal-page main {
  background-color: var(--bg-white);
}

.adc-legal-content {
  max-width: 800px;
  margin-inline: auto;
  padding-inline: var(--container-px);
  padding-block: 4rem;
  color: var(--text-primary-on-light);
  background-color: var(--bg-white);
}

.adc-legal-content h1 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--text-primary-on-light);
  margin-bottom: 0.5rem;
}

.adc-legal-content .adc-legal-date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8125rem;
  color: var(--text-faint-on-light);
  margin-bottom: 2.5rem;
}

.adc-legal-content h2 {
  font-size: 1.25rem;
  color: var(--text-primary-on-light);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.adc-legal-content h3 {
  font-size: 1.0625rem;
  color: var(--text-primary-on-light);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

.adc-legal-content p {
  font-size: 0.9375rem;
  color: var(--text-primary-on-light);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.adc-legal-content ul,
.adc-legal-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.adc-legal-content ul { list-style: disc; }
.adc-legal-content ol { list-style: decimal; }

.adc-legal-content li {
  font-size: 0.9375rem;
  color: var(--text-primary-on-light);
  line-height: 1.75;
  margin-bottom: 0.375rem;
}

.adc-legal-content a {
  color: var(--brand-teal);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.adc-legal-content a:hover {
  color: var(--brand-teal-hover);
}

/* === COOKIE BANNER === */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 9999;
  background-color: var(--bg-dark);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-block: 1rem;
}

.cookie-banner__inner {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.cookie-banner__text {
  font-size: 0.9rem;
  color: var(--text-muted-on-dark);
  line-height: 1.5;
  flex: 1;
  min-width: 200px;
}

.cookie-banner__text a {
  color: var(--brand-teal-light);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.cookie-banner__actions {
  flex-shrink: 0;
}

.cookie-banner__btn {
  display: inline-block;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-btn);
  font-family: 'Nunito Sans', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: #FFFFFF;
  background-color: transparent;
  border: 1.5px solid rgba(240,247,247,0.45);
  cursor: pointer;
  transition: border-color 200ms ease-out, background-color 200ms ease-out, color 200ms ease-out;
  text-decoration: none;
  white-space: nowrap;
}

.cookie-banner__btn:hover {
  border-color: var(--text-primary-on-dark);
  background-color: rgba(240,247,247,0.08);
  color: var(--text-primary-on-dark);
}

/* === DOCS CONTENT SHARED CONTAINER === */
.adc-docs-content {
  max-width: 800px;
  margin-inline: auto;
  padding-inline: var(--container-px);
  padding-block: 3rem 4rem;
}

.adc-page--light-top .adc-docs-content {
  color: var(--text-primary-on-light);
  background-color: var(--bg-white);
}

.adc-page--dark-top .adc-docs-content {
  color: var(--text-primary-on-dark);
  background-color: var(--bg-dark);
}

/* === GENERAL UTILITY CLASSES === */
.adc-text-center { text-align: center; }
.adc-text-muted-light { color: var(--text-muted-on-light); }
.adc-text-muted-dark { color: var(--text-muted-on-dark); }
.adc-text-teal { color: var(--brand-teal); }
.adc-text-amber { color: var(--accent-amber); }

.adc-mb-sm { margin-bottom: 1rem; }
.adc-mb-md { margin-bottom: 2rem; }
.adc-mb-lg { margin-bottom: 3rem; }

/* === RESPONSIVE === */
@media (max-width: 1024px) {
  :root {
    --section-py: 72px;
  }

  .adc-hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .adc-hero__visual { display: none; }

  .adc-hero__actions { justify-content: center; }

  .adc-hero__sub { margin-inline: auto; }

  .adc-problem__layout {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .adc-features-asym {
    grid-template-columns: 1fr;
  }

  .adc-feat-card--hero { grid-row: auto; }
  .adc-feat-card--sm { grid-column: 1; }

  .adc-buyer-cards { grid-template-columns: 1fr; }

  .adc-testimonials { grid-template-columns: 1fr; }

  .adc-contact-layout { grid-template-columns: 1fr; }

  .adc-case-snapshot { grid-template-columns: 1fr; }
  .adc-case-card__body { grid-template-columns: 1fr; }

  .adc-founder-layout { grid-template-columns: 1fr; }
  .adc-founder-portrait { max-width: 240px; }

  .adc-team-secondary { grid-template-columns: 1fr; }

  .adc-subhero__layout { grid-template-columns: 1fr; }
  .adc-subhero__visual { display: none; }

  .adc-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }

  .adc-footer__brand { grid-column: 1 / -1; }

  .adc-contact-block { grid-template-columns: 1fr; }

  .adc-response-grid { grid-template-columns: 1fr; }

  .adc-integration-paths { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  :root {
    --section-py: 56px;
  }

  .adc-nav__links {
    position: fixed;
    top: 68px;
    left: 0;
    right: 0;
    background-color: var(--bg-white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 1rem 0 1.5rem;
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
    border-top: 1px solid var(--border-default);
    max-height: 0;
    overflow: hidden;
    transition: max-height 300ms ease-out;
    z-index: 850;
  }

  .adc-nav__links--open {
    max-height: 500px;
  }

  .adc-nav__link {
    color: var(--text-primary-on-light) !important;
    background-color: transparent !important;
    border-radius: 0;
    padding: 0.875rem 1.5rem;
    border-bottom: 1px solid var(--border-default);
  }

  .adc-nav__link:hover {
    background-color: var(--bg-teal-subtle) !important;
    color: var(--brand-teal) !important;
  }

  .adc-nav__cta {
    display: none;
  }

  .adc-nav__hamburger {
    display: flex;
  }

  .adc-proof-strip__grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .adc-hiw-timeline {
    flex-direction: column;
    gap: 2rem;
  }

  .adc-hiw-timeline::before { display: none; }

  .adc-hiw-step { align-items: flex-start; text-align: left; }

  .adc-pain-cards { grid-template-columns: 1fr; }

  .adc-feature-list { grid-template-columns: 1fr; }

  .adc-pricing-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin-inline: auto;
  }

  .adc-blog-featured-card {
    grid-template-columns: 1fr;
  }

  .adc-blog-grid {
    grid-template-columns: 1fr;
  }

  .adc-hw-step { grid-template-columns: 1fr; gap: 1.5rem; }
  .adc-hw-step--reverse .adc-hw-step__content { order: 0; }
  .adc-hw-step--reverse .adc-hw-step__visual { order: 0; }

  .adc-footer__grid { grid-template-columns: 1fr; }
  .adc-footer__bottom { flex-direction: column; text-align: center; }

  .adc-page--dark-top .adc-nav--scrolled .adc-nav__link { color: var(--text-primary-on-light) !important; }
}

@media (max-width: 480px) {
  .adc-auth-card { padding: 1.75rem 1.25rem; }
  .adc-hero__actions { flex-direction: column; align-items: center; }
  .adc-cta-bottom__actions { flex-direction: column; align-items: center; }
}

/* === APPENDED: BLOCKED CLASS DEFINITIONS (phase 2b) === */

/* --- Full-width button --- */
.adc-btn--full {
  width: 100%;
  justify-content: center;
}

/* --- Sub-page hero (replaces adc-subhero for pages using adc-subpage-hero) --- */
.adc-subpage-hero {
  padding-block: 72px 56px;
  background-color: var(--bg-page);
  position: relative;
  overflow: hidden;
}

.adc-subpage-hero::after {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(13,115,119,0.07) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.adc-subpage-hero--centered {
  text-align: center;
}

.adc-subpage-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 3rem;
  align-items: center;
}

.adc-subpage-hero--centered .adc-subpage-hero__inner {
  display: block;
}

.adc-subpage-hero__copy {
  position: relative;
  z-index: 1;
}

.adc-subpage-hero__copy--center {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.adc-subpage-hero__h1 {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(1.875rem, 3.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--text-primary-on-light);
  margin-bottom: 1rem;
}

.adc-subpage-hero__sub {
  font-size: 1.0625rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
  max-width: 600px;
}

.adc-subpage-hero__copy--center .adc-subpage-hero__sub {
  margin-inline: auto;
}

.adc-subpage-hero__visual {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (max-width: 1024px) {
  .adc-subpage-hero__inner {
    grid-template-columns: 1fr;
  }
  .adc-subpage-hero__visual {
    display: none;
  }
}

/* --- Legal article classes (inside adc-docs-content) --- */
.legal-article {
  color: var(--text-primary-on-light);
}

.legal-header {
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border-default);
}

.legal-meta {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8125rem;
  color: var(--text-faint-on-light);
  margin-top: 0.375rem;
}

.legal-table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
}

.legal-table th,
.legal-table td {
  padding: 0.625rem 0.875rem;
  border: 1px solid var(--border-default);
  text-align: left;
  vertical-align: top;
  color: var(--text-primary-on-light);
}

.legal-table th {
  background-color: var(--bg-teal-subtle);
  font-weight: 700;
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.875rem;
}

/* --- Walkthrough (how-it-works step-by-step) --- */
.adc-walkthrough {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.adc-walkthrough__step {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 2rem;
  align-items: flex-start;
  padding-block: 2.5rem;
  border-bottom: 1px solid var(--border-default);
}

.adc-walkthrough__step:last-child {
  border-bottom: none;
}

.adc-walkthrough__step--alt {
  background-color: var(--bg-page);
  margin-inline: -2rem;
  padding-inline: 2rem;
  border-radius: var(--radius-card);
}

.adc-walkthrough__icon {
  width: 64px;
  height: 64px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.adc-walkthrough__icon svg {
  width: 56px;
  height: 56px;
}

.adc-walkthrough__body {
  padding-top: 0.25rem;
}

.adc-walkthrough__num {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-teal);
  margin-bottom: 0.375rem;
}

.adc-walkthrough__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.625rem;
}

@media (max-width: 768px) {
  .adc-walkthrough__step {
    grid-template-columns: 56px 1fr;
    gap: 1.25rem;
  }
  .adc-walkthrough__step--alt {
    margin-inline: -1rem;
    padding-inline: 1rem;
  }
}

/* --- Pricing row (alternative to adc-pricing-grid) --- */
.adc-pricing-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  align-items: start;
  position: relative;
}

/* --- Pricing card header, name, cap sub-elements --- */
.adc-pricing-card__header {
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.adc-pricing-card__name {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
}

/* adc-pricing-card__cap already defined, alias covered */

/* --- Feature list (for-districts, for-platforms) --- */
.adc-feat-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
}

.adc-feat-item {
  display: flex;
  flex-direction: row;
  gap: 1rem;
  align-items: flex-start;
}

.adc-feat-item__icon {
  width: 40px;
  height: 40px;
  background-color: var(--bg-teal-subtle);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.adc-feat-item__icon svg {
  width: 20px;
  height: 20px;
  color: var(--brand-teal);
}

.adc-feat-item__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.375rem;
}

.adc-feat-item__body {
  font-size: 0.9rem;
  color: var(--text-muted-on-light);
  line-height: 1.65;
}

@media (max-width: 768px) {
  .adc-feat-list {
    grid-template-columns: 1fr;
  }
  .adc-pricing-row {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin-inline: auto;
  }
}

/* --- Case study cards (case-studies page) --- */
.adc-cs-list {
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.adc-cs-card {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
}

.adc-cs-card__header {
  margin-bottom: 1.5rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border-default);
}

.adc-cs-card__type {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--brand-teal);
  margin-bottom: 0.5rem;
}

.adc-cs-card__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.5rem;
}

.adc-cs-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  font-family: 'IBM Plex Mono', monospace;
}

.adc-cs-card__meta span {
  white-space: nowrap;
}

.adc-cs-card__body {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem 2rem;
}

.adc-cs-card__section h3 {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-teal);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.adc-cs-card__section p {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
}

.adc-cs-card__disclaimer {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border-default);
  font-size: 0.8125rem;
  color: var(--text-faint-on-light);
  font-family: 'IBM Plex Mono', monospace;
}

@media (max-width: 768px) {
  .adc-cs-card__body {
    grid-template-columns: 1fr;
  }
}

/* --- About page: team and mission --- */
.adc-team {
  display: flex;
  flex-direction: column;
  gap: 3rem;
}

.adc-team-member__portrait {
  width: 220px;
  flex-shrink: 0;
  border-radius: var(--radius-card);
  overflow: hidden;
  background-color: var(--bg-teal-subtle);
  aspect-ratio: 3/4;
  display: flex;
  align-items: center;
  justify-content: center;
}

.adc-team-member__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  display: block;
}

.adc-team-member__avatar {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-color: var(--brand-teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 2rem;
  font-weight: 800;
  color: #FFFFFF;
  flex-shrink: 0;
}

.adc-team-member__contact {
  margin-top: 1rem;
}

.adc-team-member__email {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--brand-teal);
  text-decoration: none;
  transition: color 200ms ease-out;
}

.adc-team-member__email:hover {
  color: var(--brand-teal-hover);
}

.adc-mission {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
  padding: 2.5rem;
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-default);
}

.adc-mission__quote-mark {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 5rem;
  line-height: 0.7;
  color: var(--brand-teal-light);
  opacity: 0.4;
  display: block;
  margin-bottom: 0.5rem;
}

.adc-mission__statement {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(1.375rem, 3vw, 1.875rem);
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary-on-light);
  font-style: italic;
  margin-bottom: 1.25rem;
}

.adc-mission__context {
  font-size: 0.9375rem;
  color: var(--text-muted-on-light);
  line-height: 1.75;
}

/* About contact section */
.adc-about-contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.adc-about-contact__copy .adc-section-headline {
  margin-bottom: 1rem;
}

.adc-about-contact__details {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  font-style: normal;
}

.adc-contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  font-size: 0.9375rem;
  color: var(--text-primary-on-dark);
}

.adc-contact-detail i {
  color: var(--brand-teal-light);
  font-size: 1rem;
  margin-top: 0.2em;
  flex-shrink: 0;
  width: 20px;
  text-align: center;
}

.adc-contact-detail a {
  color: var(--brand-teal-light);
  text-decoration: none;
  transition: color 200ms ease-out;
}

.adc-contact-detail a:hover {
  color: var(--text-primary-on-dark);
}

@media (max-width: 1024px) {
  .adc-about-contact {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .adc-team-member__portrait {
    width: 180px;
  }
}

/* --- Contact page specific classes --- */
.adc-contact-form-wrap {
  display: flex;
  flex-direction: column;
}

.adc-contact-form-wrap__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 1.5rem;
}

.adc-contact-sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.adc-contact-info__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 1.25rem;
}

.adc-contact-info__details {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  font-style: normal;
}

.adc-contact-map-placeholder {
  background-color: var(--bg-teal-subtle);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-teal);
  overflow: hidden;
  margin-top: 1.5rem;
}

/* --- Blog card enhancements --- */
.adc-blog-card--featured {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: box-shadow 200ms ease-out;
}

.adc-blog-card--featured:hover {
  box-shadow: var(--shadow-hover);
}

.adc-blog-card__cover-wrap {
  overflow: hidden;
  line-height: 0;
}

.adc-blog-card--featured .adc-blog-card__cover-wrap {
  aspect-ratio: unset;
  min-height: 100%;
}

.adc-blog-card--featured .adc-blog-card__cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  aspect-ratio: 4/3;
}

.adc-blog-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1rem;
  margin-bottom: 0.375rem;
}

.adc-blog-card__category {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-teal);
  font-weight: 400;
}

.adc-blog-card__reading {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.6875rem;
  color: var(--text-faint-on-light);
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.adc-blog-card__read-more {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-teal);
  margin-top: 0.75rem;
  transition: gap 200ms ease-out;
}

.adc-blog-card--featured:hover .adc-blog-card__read-more {
  gap: 0.625rem;
}

@media (max-width: 768px) {
  .adc-blog-card--featured {
    grid-template-columns: 1fr;
  }
}

/* --- Article template classes --- */
.adc-container--narrow {
  max-width: 840px;
  margin-inline: auto;
  padding-inline: var(--container-px);
}

.adc-article-hero__back {
  margin-bottom: 1.25rem;
}

.adc-article-hero__back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--brand-teal);
  text-decoration: none;
  transition: gap 200ms ease-out;
}

.adc-article-hero__back-link:hover {
  gap: 0.625rem;
}

.adc-article-hero__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary-on-light);
  margin-bottom: 1rem;
}

.adc-article-hero__author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-top: 0.75rem;
}

.adc-article-hero__author-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted-on-light);
}

.adc-article-content {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--text-primary-on-light);
}

.adc-article-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-top: 2.5rem;
  margin-bottom: 0.875rem;
}

.adc-article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.adc-article-content p {
  margin-bottom: 1.25rem;
}

.adc-article-content ul,
.adc-article-content ol {
  padding-left: 1.5rem;
  margin-bottom: 1.25rem;
}

.adc-article-content ul { list-style: disc; }
.adc-article-content ol { list-style: decimal; }

.adc-article-content li {
  margin-bottom: 0.4rem;
  line-height: 1.75;
}

.adc-article-content blockquote {
  border-left: 3px solid var(--brand-teal);
  padding-left: 1.25rem;
  margin-block: 1.5rem;
  font-style: italic;
  color: var(--text-muted-on-light);
}

.adc-article-cover__img {
  width: 100%;
  height: auto;
  object-fit: cover;
  border-radius: var(--radius-card);
  aspect-ratio: 3/2;
  display: block;
}

.adc-article-nav {
  display: flex;
  align-items: center;
  gap: 1rem;
}

/* --- Auth page missing sub-classes --- */
.adc-auth-main {
  min-height: 100vh;
  background-color: var(--bg-teal-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem var(--container-px);
}

.adc-auth-card__links {
  text-align: center;
  margin-top: 0.875rem;
  font-size: 0.875rem;
}

.adc-auth-card__link {
  color: var(--brand-teal);
  font-weight: 600;
  text-decoration: none;
  transition: color 200ms ease-out;
  font-size: 0.875rem;
}

.adc-auth-card__link:hover {
  color: var(--brand-teal-hover);
}

.adc-auth-card__divider {
  height: 1px;
  background-color: var(--border-default);
  margin-block: 1.25rem;
}

.adc-auth-card__alt {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  text-align: center;
  margin-bottom: 0;
}

.adc-auth-card__legal {
  font-size: 0.75rem;
  color: var(--text-faint-on-light);
  text-align: center;
  margin-top: 1.25rem;
  line-height: 1.6;
}

.adc-auth-card__legal a {
  color: var(--text-muted-on-light);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color 200ms ease-out;
}

.adc-auth-card__legal a:hover {
  color: var(--brand-teal);
}

/* --- For-platforms specific classes --- */
.adc-hero__platform-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: rgba(20,160,165,0.15);
  border: 1px solid rgba(20,160,165,0.3);
  border-radius: 99px;
  padding: 0.375rem 0.875rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--brand-teal-light);
  margin-bottom: 1.25rem;
}

.adc-code-block {
  background-color: var(--bg-dark);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid rgba(255,255,255,0.08);
  margin-block: 1.25rem;
  padding: 1.25rem 1.5rem;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8125rem;
  line-height: 1.8;
  color: var(--text-primary-on-dark);
  overflow-x: auto;
}

.adc-code--method { color: #14A0A5; }
.adc-code--key { color: #9BBFC4; }
.adc-code--str { color: #F59E0B; }
.adc-code--num { color: #F0F7F7; }
.adc-code--comment { color: #5A7A80; }

.adc-integration-path__header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.875rem;
}

.adc-integration-path__header .adc-integration-path__icon {
  margin: 0;
}

.adc-integration-path__header .adc-integration-path__title {
  margin-bottom: 0;
  text-align: left;
}

/* --- For-districts case snapshot revised classes --- */
.adc-case-snapshot__label {
  display: inline-block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--brand-teal);
  margin-bottom: 0.5rem;
}

.adc-case-snapshot__title {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.875rem;
  grid-column: 1 / -1;
}

.adc-case-snapshot__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 1.25rem;
  margin-bottom: 1.25rem;
  grid-column: 1 / -1;
}

.adc-case-snapshot__meta span {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.8125rem;
  color: var(--text-muted-on-light);
}

.adc-case-snapshot__body {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.adc-case-snapshot__item h3 {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--brand-teal);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.adc-case-snapshot__item p {
  font-size: 0.9rem;
  color: var(--text-muted-on-light);
  line-height: 1.7;
}

.adc-case-snapshot__note {
  grid-column: 1 / -1;
  margin-top: 1rem;
  padding-top: 0.875rem;
  border-top: 1px solid var(--border-default);
  font-size: 0.8125rem;
  color: var(--text-faint-on-light);
  font-family: 'IBM Plex Mono', monospace;
}

.adc-case-snapshot {
  background-color: var(--bg-white);
  border-radius: var(--radius-card);
  padding: 2.5rem;
  border: 1px solid var(--border-default);
  box-shadow: var(--shadow-soft);
  display: block;
}

@media (max-width: 768px) {
  .adc-case-snapshot__body {
    grid-template-columns: 1fr;
  }
}

/* --- Diagram section --- */
.adc-diagram-wrap {
  text-align: center;
  margin-top: 2rem;
}

.adc-diagram-img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-default);
}

/* --- Response card icon variants --- */
.adc-response-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.adc-response-card__icon svg {
  width: 40px;
  height: 40px;
}

.adc-response-card__icon--correct { color: var(--brand-teal); }
.adc-response-card__icon--partial { color: var(--accent-amber); }
.adc-response-card__icon--incorrect { color: var(--text-muted-on-light); }
.adc-response-card__icon--skipped { color: var(--text-faint-on-light); }

.adc-response-card__label {
  font-family: 'Sora', system-ui, sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary-on-light);
  margin-bottom: 0.5rem;
}

.adc-response-card__desc {
  font-size: 0.875rem;
  color: var(--text-muted-on-light);
  line-height: 1.65;
}