/* ============================================================
   KERITH WEBSITE — styles.css
   Strategic Minimalism with Executive Weight
   ============================================================ */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=Barlow:wght@300;400;500;600&display=swap');

/* ── CSS Variables ── */
:root {
  --indigo-primary: #1B2A6B;
  --charcoal:       #1C1C1E;
  --white:          #FFFFFF;
  --warm-grey:      #F4F3F0;
  --slate-accent:   #6B7A99;

  --font-display: 'Playfair Display', Georgia, serif;
  --font-body:    'Barlow', 'Helvetica Neue', Arial, sans-serif;

  --nav-height: 130px;
  --max-width: 1200px;
  --content-width: 680px;

  --transition-fast: 0.25s ease;
  --transition-med:  0.4s ease;
}

/* ── Splash Screen ── */
#splash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 1s ease;
}

#splash.dissolve {
  opacity: 0;
  pointer-events: none;
}

#splash-logo {
  width: min(720px, 90vw);
  height: auto;
}

/* ── Reset ── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  color: var(--charcoal);
  background: var(--white);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ── Typography Scale ── */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.15;
  color: var(--charcoal);
}

h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); font-weight: 600; }
h3 { font-size: clamp(1.2rem, 2vw, 1.6rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

p {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--charcoal);
}

/* ── Section Label ── */
.section-label {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--slate-accent);
  margin-bottom: 1.25rem;
}

/* ── Layout Containers ── */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.section {
  padding: 7rem 0;
}

.section--grey {
  background: var(--warm-grey);
  position: relative;
  overflow: hidden;
}

/* ── Brook animation ── */
.brook {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

/* Keep section content above brook */
.section--grey > .container,
.hero > .hero__inner {
  position: relative;
  z-index: 1;
}

@keyframes brookStream {
  from { background-position-x: 0; }
  to   { background-position-x: -480px; }
}

.section--indigo {
  background: var(--indigo-primary);
  color: var(--white);
}

.section--indigo h2,
.section--indigo h3,
.section--indigo p,
.section--indigo .section-label {
  color: var(--white);
}

.section--indigo .section-label {
  color: rgba(255,255,255,0.6);
}

/* ── Horizontal Rule Dividers ── */
hr {
  border: none;
  border-top: 1px solid rgba(107, 122, 153, 0.2);
  margin: 0;
}

/* ── Buttons ── */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.875rem 2rem;
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
  border: none;
}

.btn-primary {
  background: var(--indigo-primary);
  color: var(--white);
}

.btn-primary:hover {
  background: #152059;
}

.btn-outline {
  background: transparent;
  color: var(--indigo-primary);
  border: 1.5px solid var(--indigo-primary);
}

.btn-outline:hover {
  background: var(--indigo-primary);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--indigo-primary);
}

.btn-white:hover {
  background: var(--warm-grey);
}

/* ── Arrow Link ── */
.arrow-link {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--indigo-primary);
  letter-spacing: 0.03em;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap var(--transition-fast);
}

.arrow-link:hover {
  gap: 0.7rem;
}

/* ============================================================
   NAVIGATION
   ============================================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height);
  background: var(--white);
  transition: border-bottom var(--transition-fast);
}

.nav.scrolled {
  border-bottom: 1px solid rgba(107, 122, 153, 0.2);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem;
}

.nav__logo img {
  width: 440px;
  height: auto;
  margin-top: 1cm;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav__links a {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--charcoal);
  position: relative;
  padding-bottom: 2px;
  white-space: nowrap;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--indigo-primary);
  transition: width var(--transition-fast);
}

.nav__links a:hover::after,
.nav__links a.active::after {
  width: 100%;
}

.nav__links a.active {
  color: var(--indigo-primary);
}

.nav__cta {
  margin-left: 1rem;
  white-space: nowrap;
}

/* Hamburger */
.nav__hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  width: 32px;
  height: 32px;
}

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 1.5px;
  background: var(--charcoal);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav__hamburger.open span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav__hamburger.open span:nth-child(2) {
  opacity: 0;
}

.nav__hamburger.open span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Mobile Overlay */
.nav__overlay {
  position: fixed;
  inset: 0;
  background: var(--indigo-primary);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.5rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-med);
}

.nav__overlay.open {
  opacity: 1;
  pointer-events: all;
}

.nav__overlay a {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--white);
  font-weight: 400;
}

.nav__overlay a:hover {
  color: rgba(255,255,255,0.7);
}

.nav__overlay .btn {
  margin-top: 1rem;
}

/* ============================================================
   HERO — HOME
   ============================================================ */

.hero {
  min-height: 100vh;
  background: var(--warm-grey);
  display: flex;
  align-items: center;
  padding-top: var(--nav-height);
  position: relative;
  overflow: hidden;
}

/* Geometric diagonal rule element — removed */
.hero::after {
  display: none;
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 6rem 2rem;
  max-width: 860px;
}

.hero__label {
  opacity: 0;
  animation: fadeUp 0.5s ease-out 0.1s forwards;
}

.hero__headline {
  margin: 1.25rem 0 1.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease-out 0.3s forwards;
}

.hero__sub {
  max-width: 580px;
  font-size: 1.125rem;
  line-height: 1.7;
  color: #3a3a3c;
  margin-bottom: 2.5rem;
  opacity: 0;
  animation: fadeUp 0.6s ease-out 0.5s forwards;
}

.hero__cta {
  opacity: 0;
  animation: fadeUp 0.6s ease-out 0.7s forwards;
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============================================================
   PAGE HERO (non-home pages)
   ============================================================ */

.page-hero {
  background: var(--warm-grey);
  padding: calc(var(--nav-height) + 5rem) 0 5rem;
  border-bottom: 1px solid rgba(107, 122, 153, 0.2);
}

.page-hero__label {
  margin-bottom: 1.25rem;
}

.page-hero__headline {
  max-width: 720px;
}

.page-hero__intro {
  max-width: var(--content-width);
  margin-top: 1.5rem;
  font-size: 1.05rem;
  color: #3a3a3c;
}

/* ============================================================
   PROBLEM SECTION
   ============================================================ */

.problem__grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 6rem;
  align-items: center;
}

.problem__copy {
  max-width: var(--content-width);
}

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

.problem__stat {
  text-align: right;
}

.problem__stat-text {
  font-family: var(--font-display);
  font-size: clamp(1rem, 2vw, 1.25rem);
  font-style: italic;
  color: var(--slate-accent);
  line-height: 1.6;
}

/* ============================================================
   PROCESS STEPS (Home)
   ============================================================ */

.steps__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.step {
  padding: 3rem;
  border-left: 1px solid rgba(107, 122, 153, 0.2);
}

.step:first-child {
  border-left: none;
  padding-left: 0;
}

.step__number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(107, 122, 153, 0.25);
  line-height: 1;
  margin-bottom: 1.25rem;
}

.step__name {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 1rem;
}

/* ============================================================
   WHO WE WORK WITH
   ============================================================ */

.clients__intro {
  max-width: var(--content-width);
  margin-bottom: 3.5rem;
}

.clients__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(107, 122, 153, 0.2);
}

.client-card {
  background: var(--white);
  padding: 2rem 2rem;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.client-card::before {
  content: '—';
  display: block;
  color: var(--indigo-primary);
  font-weight: 600;
  margin-bottom: 0.75rem;
}

/* ============================================================
   SERVICES TEASER (Home)
   ============================================================ */

.services-teaser__header {
  max-width: var(--content-width);
  margin-bottom: 3rem;
}

.services-teaser__header p {
  margin-top: 1.25rem;
}

.services-teaser__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(107, 122, 153, 0.2);
  margin-bottom: 2.5rem;
}

.service-tile {
  background: var(--white);
  padding: 2rem;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: background var(--transition-fast), color var(--transition-fast);
}

.service-tile::before {
  content: '→';
  color: var(--indigo-primary);
  font-size: 1rem;
  transition: color var(--transition-fast);
}

.service-tile:hover {
  background: var(--indigo-primary);
  color: var(--white);
}

.service-tile:hover::before {
  color: var(--white);
}

/* ============================================================
   CLOSING STATEMENT
   ============================================================ */

.closing__inner {
  max-width: 720px;
}

.closing__inner h2 {
  color: var(--white);
  margin: 1.25rem 0 1.5rem;
}

.closing__inner p {
  color: rgba(255,255,255,0.8);
  margin-bottom: 2.5rem;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */

.philosophy__content {
  max-width: var(--content-width);
}

.philosophy__content h2 {
  margin: 1.25rem 0 1.5rem;
}

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

.distinction__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: start;
}

.distinction__copy h2 {
  margin: 1.25rem 0 1.5rem;
}

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

/* Founder section */
.founder__grid {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: 5rem;
  align-items: start;
}

.founder__image img {
  width: 100%;
  object-fit: cover;
  aspect-ratio: 1/1;
  display: block;
  border-radius: 50%;
}

.founder__copy h2 {
  margin: 1.25rem 0 1.5rem;
}

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

/* ============================================================
   SERVICES PAGE
   ============================================================ */

.services__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: rgba(107, 122, 153, 0.15);
}

.service-card {
  background: var(--white);
  padding: 2.5rem;
  border-top: 3px solid var(--indigo-primary);
  transition: background var(--transition-fast), color var(--transition-fast);
  cursor: default;
}

.service-card__number {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--slate-accent);
  margin-bottom: 1rem;
  transition: color var(--transition-fast);
}

.service-card h3 {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
  transition: color var(--transition-fast);
}

.service-card__purpose {
  font-size: 0.875rem;
  font-style: italic;
  color: var(--slate-accent);
  margin-bottom: 1rem;
  transition: color var(--transition-fast);
}

.service-card__desc {
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
  transition: color var(--transition-fast);
}

.service-card__deliverables {
  list-style: none;
  margin-bottom: 1.5rem;
}

.service-card__deliverables li {
  font-size: 0.8125rem;
  color: var(--slate-accent);
  padding: 0.3rem 0;
  border-bottom: 1px solid rgba(107, 122, 153, 0.15);
  display: flex;
  gap: 0.5rem;
  transition: color var(--transition-fast), border-color var(--transition-fast);
}

.service-card__deliverables li::before {
  content: '→';
  flex-shrink: 0;
  color: var(--indigo-primary);
  transition: color var(--transition-fast);
}

.service-card__outcome {
  font-size: 0.8125rem;
  font-weight: 600;
  font-family: var(--font-body);
  color: var(--indigo-primary);
  letter-spacing: 0.03em;
  transition: color var(--transition-fast);
}

/* Hover state — full card flips */
.service-card:hover {
  background: var(--indigo-primary);
}

.service-card:hover .service-card__number,
.service-card:hover h3,
.service-card:hover .service-card__desc,
.service-card:hover .service-card__outcome {
  color: var(--white);
}

.service-card:hover .service-card__purpose {
  color: rgba(255,255,255,0.7);
}

.service-card:hover .service-card__deliverables li {
  color: rgba(255,255,255,0.75);
  border-color: rgba(255,255,255,0.15);
}

.service-card:hover .service-card__deliverables li::before {
  color: rgba(255,255,255,0.9);
}

/* ============================================================
   HOW WE WORK PAGE
   ============================================================ */

.engagements__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0;
}

.engagement {
  padding: 3rem 3rem 3rem 0;
  border-right: 1.5px solid var(--indigo-primary);
  padding-right: 3rem;
}

.engagement:last-child {
  border-right: none;
  padding-right: 0;
  padding-left: 3rem;
}

.engagement:not(:first-child):not(:last-child) {
  padding-left: 3rem;
}

.engagement__number {
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  color: rgba(107, 122, 153, 0.2);
  line-height: 1;
  margin-bottom: 1.25rem;
}

.engagement__name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.engagement__duration {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--slate-accent);
  letter-spacing: 0.05em;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
}

.engagement__desc {
  font-size: 0.9375rem;
  margin-bottom: 1.5rem;
}

.engagement__receive-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-accent);
  margin-bottom: 0.5rem;
}

.engagement__receive {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--indigo-primary);
  margin-bottom: 1.25rem;
}

.engagement__best-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--slate-accent);
  margin-bottom: 0.5rem;
}

.engagement__best {
  font-size: 0.875rem;
  color: #3a3a3c;
}

/* Investment section */
.investment__inner {
  max-width: 680px;
}

.investment__inner h2 {
  margin: 1.25rem 0 1.5rem;
}

.investment__inner p {
  margin-bottom: 1.5rem;
}

.investment__tiers {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: rgba(255,255,255,0.2);
  margin: 2rem 0;
}

.investment__tier {
  background: rgba(255,255,255,0.08);
  padding: 1.5rem;
}

.investment__tier-name {
  font-family: var(--font-body);
  font-size: 0.8125rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.6);
  margin-bottom: 0.25rem;
}

/* ============================================================
   INSIGHTS PAGE
   ============================================================ */

.insights__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2px;
  background: rgba(107, 122, 153, 0.15);
}

.article-card {
  background: var(--white);
  padding: 2.5rem;
  display: flex;
  flex-direction: column;
}

.article-card__tag {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--indigo-primary);
  margin-bottom: 1rem;
}

.article-card h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  line-height: 1.3;
}

.article-card__excerpt {
  font-size: 0.9375rem;
  color: #3a3a3c;
  flex: 1;
  margin-bottom: 1.5rem;
}

.article-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid rgba(107, 122, 153, 0.2);
  padding-top: 1.25rem;
  margin-top: auto;
}

.article-card__date {
  font-size: 0.8125rem;
  color: var(--slate-accent);
}

.article-card__meta {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.article-card__author {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--indigo-primary);
}

/* Full article body — hidden by default */
.article-card__full {
  display: none;
  margin-top: 1.75rem;
  padding-top: 1.75rem;
  border-top: 1px solid rgba(107, 122, 153, 0.18);
}

.article-card--expanded .article-card__full {
  display: block;
  animation: fadeInUp 0.35s ease both;
}

.article-card__full p {
  font-size: 0.9375rem;
  color: #3a3a3c;
  line-height: 1.75;
  margin-bottom: 1.1rem;
}

.article-card__full h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--indigo-primary);
  margin: 1.75rem 0 0.6rem;
}

.article-card__full strong {
  color: var(--indigo-primary);
  font-weight: 600;
}

/* Toggle button acts like a button, looks like arrow-link */
button.arrow-link {
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font-family: inherit;
}

/* ============================================================
   CONTACT PAGE
   ============================================================ */

.contact__grid {
  display: grid;
  grid-template-columns: 3fr 2fr;
  gap: 6rem;
  align-items: start;
}

.contact__form-heading {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 2.5rem;
  max-width: 420px;
}

.form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form__label {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--slate-accent);
}

.form__input,
.form__textarea {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--charcoal);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid rgba(107, 122, 153, 0.35);
  padding: 0.75rem 0;
  outline: none;
  transition: border-color var(--transition-fast);
  width: 100%;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--indigo-primary);
}

.form__textarea {
  resize: vertical;
  min-height: 120px;
}

.form__submit {
  align-self: flex-start;
  margin-top: 0.5rem;
}

.form__success {
  font-size: 1.1rem;
  color: #1B2A6B;
  font-weight: 600;
  padding: 1.5rem 0;
}

.form__error {
  font-size: 0.9rem;
  color: #c0392b;
  margin-bottom: 1rem;
}

/* What happens next */
.next-steps {
  padding-top: 3rem;
  border-top: 1px solid rgba(107, 122, 153, 0.2);
}

.next-steps h2 {
  margin: 1.25rem 0 2.5rem;
}

.next-step {
  display: grid;
  grid-template-columns: 2rem 1fr;
  gap: 1.25rem;
  margin-bottom: 2rem;
  align-items: start;
}

.next-step__num {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--slate-accent);
  padding-top: 2px;
}

.next-step__title {
  font-family: var(--font-body);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--indigo-primary);
  margin-bottom: 0.4rem;
}

.next-step__desc {
  font-size: 0.9375rem;
}

/* ============================================================
   FOOTER
   ============================================================ */

.footer {
  background: var(--indigo-primary);
  color: var(--white);
  padding: 5rem 0 3rem;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  margin-bottom: 3rem;
}

.footer__brand img {
  width: 220px;
  margin-bottom: 1.25rem;
}

.footer__tagline {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.03em;
}

.footer__nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  justify-content: flex-start;
}

.footer__nav a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition-fast);
}

.footer__nav a:hover {
  color: var(--white);
}

.footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.12);
}

.footer__copyright {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.45);
}

/* ============================================================
   SCROLL ANIMATION BASE
   ============================================================ */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal--delay-1 { transition-delay: 0.1s; }
.reveal--delay-2 { transition-delay: 0.2s; }
.reveal--delay-3 { transition-delay: 0.3s; }
.reveal--delay-4 { transition-delay: 0.4s; }

/* ============================================================
   UTILITIES
   ============================================================ */

.text-slate { color: var(--slate-accent); }
.text-indigo { color: var(--indigo-primary); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }

/* ============================================================
   RESPONSIVE — Tablet (768px)
   ============================================================ */

@media (max-width: 768px) {

  :root {
    --nav-height: 80px;
  }

  .section {
    padding: 4.5rem 0;
  }

  /* Nav */
  .nav__links,
  .nav__cta {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  /* Hero */
  .hero__inner {
    padding: 5rem 1.5rem;
  }

  /* Problem */
  .problem__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .problem__stat {
    text-align: left;
  }

  /* Process steps */
  .steps__grid {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .step {
    border-left: none;
    border-top: 1px solid rgba(107, 122, 153, 0.2);
    padding: 2rem 0;
  }

  .step:first-child {
    border-top: none;
    padding-top: 0;
  }

  /* Clients grid */
  .clients__grid {
    grid-template-columns: 1fr;
  }

  /* Services teaser */
  .services-teaser__grid {
    grid-template-columns: 1fr;
  }

  /* Services grid */
  .services__grid {
    grid-template-columns: 1fr;
  }

  /* Engagements */
  .engagements__grid {
    grid-template-columns: 1fr;
  }

  .engagement {
    border-right: none;
    border-bottom: 1px solid rgba(107, 122, 153, 0.2);
    padding: 2.5rem 0;
  }

  .engagement:first-child {
    padding-top: 0;
  }

  .engagement:not(:first-child):not(:last-child) {
    padding-left: 0;
  }

  .engagement:last-child {
    padding-left: 0;
    border-bottom: none;
  }

  /* Distinction */
  .distinction__grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }

  /* Founder */
  .founder__grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .founder__image img {
    aspect-ratio: 1/1;
    max-width: 280px;
    margin: 0 auto;
  }

  /* Insights */
  .insights__grid {
    grid-template-columns: 1fr;
  }

  /* Contact */
  .contact__grid {
    grid-template-columns: 1fr;
    gap: 4rem;
  }

  /* Investment tiers */
  .investment__tiers {
    grid-template-columns: 1fr;
  }

  /* Footer */
  .footer__inner {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}

/* ============================================================
   RESPONSIVE — Large (1200px+)
   ============================================================ */

@media (min-width: 1200px) {
  .hero__inner {
    max-width: var(--max-width);
  }
}