:root {
  --color-bg: #ffffff;
  --color-text: #0a0a0a;
  --color-muted: #6b6b6b;
  --color-line: rgba(10, 10, 10, 0.12);
  --color-line-strong: rgba(10, 10, 10, 0.2);
  --color-accent: #e50914;
  --font-sans: Inter, "Helvetica Neue", Helvetica, Arial, sans-serif;
  --max-width: 1200px;
  --narrow-width: 840px;
  --space-section: clamp(4.5rem, 9vw, 6.25rem);
  --space-gutter: clamp(1.25rem, 2.5vw, 2rem);
  --shadow-focus: 0 0 0 3px rgba(229, 9, 20, 0.12);
  --header-height: 84px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: clamp(1rem, 0.96rem + 0.25vw, 1.125rem);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

a {
  color: inherit;
}

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -3rem;
  z-index: 200;
  padding: 0.75rem 1rem;
  background: var(--color-text);
  color: var(--color-bg);
  text-decoration: none;
}

.skip-link:focus {
  top: 1rem;
}

.container {
  width: min(calc(100% - (var(--space-gutter) * 2)), var(--max-width));
  margin: 0 auto;
}

.container.narrow {
  width: min(calc(100% - (var(--space-gutter) * 2)), var(--narrow-width));
}

.section {
  padding: var(--space-section) 0;
}

.section-border {
  border-top: 1px solid var(--color-line);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(10, 10, 10, 0.09);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  min-height: var(--header-height);
}

.brand {
  display: inline-flex;
  align-items: center;
  min-height: 64px;
  padding: 16px 0;
}

.brand-mark {
  width: clamp(176px, 25vw, 260px);
  height: auto;
}

.menu-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 44px;
  padding: 0.65rem 0.9rem;
  border: 1px solid var(--color-line);
  background: transparent;
  color: var(--color-text);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
  font-weight: 600;
}

.menu-toggle-line {
  width: 1rem;
  height: 1px;
  background: currentColor;
  transition: transform 180ms ease;
}

.site-nav {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% - 1px);
  display: grid;
  gap: 0.75rem;
  padding: 1.25rem var(--space-gutter) 1.5rem;
  background: rgba(255, 255, 255, 0.98);
  border-bottom: 1px solid rgba(10, 10, 10, 0.08);
  opacity: 0;
  pointer-events: none;
  transform: translateY(-0.5rem);
  transition: opacity 180ms ease, transform 180ms ease;
}

.site-header.is-open .site-nav {
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.nav-link {
  position: relative;
  width: fit-content;
  padding-bottom: 0.15rem;
  text-decoration: none;
  color: var(--color-muted);
  transition: color 180ms ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible,
.nav-link[aria-current="page"] {
  color: var(--color-text);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
}

.nav-link[aria-current="page"]::before {
  content: "";
  display: inline-block;
  width: 0.45rem;
  height: 0.45rem;
  margin-right: 0.55rem;
  border-radius: 999px;
  background: var(--color-accent);
  vertical-align: middle;
}

.hero {
  padding-top: clamp(4rem, 8vw, 6.5rem);
}

.hero-grid,
.page-hero-grid,
.split-grid,
.case-columns,
.footer-inner,
.contact-grid {
  display: grid;
  gap: 2rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin: 0 0 1rem;
  color: var(--color-muted);
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 1.75rem;
  height: 1px;
  background: rgba(10, 10, 10, 0.38);
}

.eyebrow-accent::before {
  width: 0.5rem;
  height: 0.5rem;
  border-radius: 999px;
  background: var(--color-accent);
}

.section-dot {
  display: inline-block;
  width: 0.5rem;
  height: 0.5rem;
  margin-right: 0.65rem;
  border-radius: 999px;
  background: rgba(10, 10, 10, 0.45);
  vertical-align: middle;
}

.hero h1,
.page-hero h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 0.98;
  text-wrap: balance;
}

.hero h1 {
  max-width: 9.5ch;
  font-size: clamp(3.5rem, 11vw, 6rem);
}

.page-hero h1 {
  max-width: 10ch;
  font-size: clamp(3rem, 7vw, 4.8rem);
}

h2 {
  max-width: 14ch;
  font-size: clamp(2.35rem, 5vw, 3rem);
}

h3 {
  font-size: clamp(1.55rem, 2.6vw, 1.75rem);
}

.lead,
.intro-copy,
.case-copy,
.contact-copy {
  max-width: 38rem;
  color: var(--color-muted);
  font-size: clamp(1.08rem, 0.98rem + 0.42vw, 1.24rem);
}

.section-header {
  display: grid;
  gap: 0.9rem;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.section-header p,
.section-header h2,
.lead,
.intro-copy,
.case-copy,
.contact-copy,
.statement,
.statement-support,
.card p,
.work-card p,
.case-detail p,
.footer-copy,
.field-note p,
.note-card p {
  margin: 0;
}

.statement {
  font-size: clamp(2.5rem, 6vw, 4rem);
  line-height: 1.02;
  letter-spacing: -0.05em;
}

.statement-support {
  margin: 1rem 0;
  color: var(--color-muted);
  font-size: clamp(1.25rem, 2.5vw, 1.7rem);
  line-height: 1.35;
}

.cards-grid,
.work-grid,
.audience-grid,
.observation-grid,
.pillar-grid,
.principles-grid {
  display: grid;
  gap: 1.5rem;
}

.card,
.work-card,
.audience-card,
.case-study,
.observation-card,
.note-card,
.field-note {
  position: relative;
}

.card,
.audience-card,
.note-card,
.field-note {
  padding-top: 1.4rem;
  border-top: 1px solid var(--color-line-strong);
}

.card p,
.audience-card p,
.work-card p,
.case-detail p,
.note-card p,
.field-note p {
  color: var(--color-muted);
}

.process-label {
  display: inline-block;
  margin-bottom: 1rem;
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.process-label .accent-dot {
  color: var(--color-accent);
}

.work-card {
  display: grid;
  gap: 1rem;
  padding: 1.6rem;
  border: 1px solid var(--color-line);
  transition: border-color 180ms ease;
}

.work-card:hover,
.observation-card:hover {
  border-color: rgba(229, 9, 20, 0.35);
}

.card-meta {
  color: var(--color-muted);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.text-link {
  position: relative;
  width: fit-content;
  padding-bottom: 0.2rem;
  color: var(--color-text);
  font-weight: 600;
  text-decoration: none;
}

.text-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(1);
  transform-origin: left;
  transition: transform 180ms ease;
}

.text-link:hover::after,
.text-link:focus-visible::after {
  transform: scaleX(0.45);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  min-height: 52px;
  padding: 0.85rem 1.25rem;
  border: 1px solid var(--color-text);
  text-decoration: none;
  transition: background-color 180ms ease, color 180ms ease, border-color 180ms ease;
}

.button-primary {
  background: var(--color-text);
  color: var(--color-bg);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--color-bg);
  color: var(--color-text);
}

.button-secondary {
  background: transparent;
  color: var(--color-text);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  background: var(--color-text);
  color: var(--color-bg);
}

.cta-panel {
  display: grid;
  gap: 1rem;
  padding: clamp(2rem, 4vw, 3rem);
  border: 1px solid var(--color-line-strong);
}

.page-hero {
  padding-top: clamp(4.5rem, 8vw, 6rem);
}

.split-grid p + p,
.intro-copy p + p,
.case-copy p + p {
  margin-top: 1.25rem;
}

.plain-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.plain-list li {
  display: flex;
  gap: 0.9rem;
  align-items: flex-start;
  padding: 1rem 0;
  border-top: 1px solid var(--color-line);
}

.plain-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.plain-list li::before {
  content: "";
  flex: 0 0 0.5rem;
  width: 0.5rem;
  height: 0.5rem;
  margin-top: 0.55rem;
  border-radius: 999px;
  background: var(--color-accent);
}

.case-study {
  padding: 2.2rem 0;
  border-top: 1px solid var(--color-line-strong);
}

.case-study:first-of-type {
  padding-top: 0;
  border-top: 0;
}

.case-header {
  display: grid;
  gap: 1rem;
  max-width: 44rem;
  margin-bottom: 1.6rem;
}

.case-columns {
  gap: 1.25rem;
}

.case-detail {
  padding-top: 1rem;
  border-top: 1px solid var(--color-line);
}

.case-detail h3 {
  margin-bottom: 0.6rem;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
}

.observation-grid {
  grid-template-columns: 1fr;
}

.observation-card {
  display: flex;
  align-items: flex-start;
  min-height: 220px;
  padding: 1.8rem;
  border: 1px solid var(--color-line);
  transition: border-color 180ms ease;
}

.observation-card::before {
  content: "";
  position: absolute;
  top: 1.4rem;
  left: 1.4rem;
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  background: var(--color-accent);
}

.observation-card p {
  margin: 0;
  padding-top: 1.3rem;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  line-height: 1.15;
  letter-spacing: -0.045em;
}

.contact-grid {
  align-items: start;
}

.contact-form {
  display: grid;
  gap: 1rem;
}

.field {
  display: grid;
  gap: 0.55rem;
}

.field label {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.field input,
.field textarea {
  width: 100%;
  padding: 1rem 1rem 0.95rem;
  border: 1px solid var(--color-line-strong);
  background: transparent;
  color: var(--color-text);
}

.field textarea {
  min-height: 180px;
  resize: vertical;
}

.field-note {
  max-width: 28rem;
}

.success-banner {
  display: none;
  margin-bottom: 1.5rem;
  padding: 1rem 1.2rem;
  border: 1px solid rgba(229, 9, 20, 0.25);
  color: var(--color-text);
}

.success-banner.is-visible {
  display: block;
}

.top-gap {
  margin-top: 1.5rem;
}

.top-gap-sm {
  margin-top: 1rem;
}

.hero-side {
  display: grid;
  gap: 1.25rem;
  align-content: start;
}

.hero-note {
  max-width: 22rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-line-strong);
  color: var(--color-muted);
  font-size: 0.92rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.observation-rail {
  display: grid;
  gap: 1rem;
  margin-top: clamp(3rem, 6vw, 4rem);
  padding-top: 1.5rem;
  border-top: 1px solid var(--color-line);
}

.observation-rail p {
  margin: 0;
  font-size: clamp(1rem, 0.92rem + 0.35vw, 1.15rem);
  line-height: 1.45;
}

.observation-rail strong {
  font-weight: 700;
}

.section-layout {
  display: grid;
  gap: clamp(2rem, 4vw, 4rem);
}

.section-lead {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.service-list,
.method-grid,
.case-list,
.audience-list,
.manifesto-grid,
.service-stack,
.contact-notes {
  display: grid;
  gap: 1.2rem;
}

.service-item,
.method-step,
.case-row,
.audience-entry,
.manifesto-note,
.contact-note {
  padding-top: 1.15rem;
  border-top: 1px solid var(--color-line-strong);
}

.service-item {
  display: grid;
  gap: 0.5rem;
}

.service-index,
.case-index,
.method-index {
  color: var(--color-muted);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.service-item p,
.method-step p,
.case-row p,
.audience-entry p,
.manifesto-note p,
.contact-note p {
  margin: 0;
  color: var(--color-muted);
}

.method-step {
  display: grid;
  gap: 0.8rem;
}

.method-index {
  color: var(--color-text);
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.04em;
  line-height: 0.9;
}

.method-step h3 {
  font-size: clamp(1.4rem, 2.2vw, 1.8rem);
}

.editorial-panel {
  display: grid;
  gap: 1rem;
  padding: clamp(2rem, 4vw, 3rem);
  border-top: 1px solid var(--color-text);
  border-bottom: 1px solid var(--color-line-strong);
}

.editorial-panel p {
  margin: 0;
}

.editorial-panel .statement {
  max-width: 18ch;
}

.editorial-panel .lead {
  max-width: 32rem;
}

.manifesto-grid {
  align-items: start;
}

.manifesto-note h3,
.service-item h3,
.audience-entry h3,
.contact-note h3 {
  margin-bottom: 0.5rem;
}

.manifesto-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
}

.manifesto-list li {
  padding: 1rem 0;
  border-top: 1px solid var(--color-line);
}

.manifesto-list li:first-child {
  padding-top: 0;
  border-top: 0;
}

.manifesto-list strong {
  display: inline-block;
  margin-right: 0.45rem;
  color: var(--color-text);
}

.case-study {
  padding: 2.6rem 0;
}

.case-shell {
  display: grid;
  gap: 2rem;
}

.case-overview {
  display: grid;
  gap: 1rem;
  align-content: start;
}

.case-overview p,
.case-overview h2 {
  margin: 0;
}

.case-shift-line {
  max-width: 34rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-line-strong);
  color: var(--color-text);
  font-weight: 600;
}

.case-columns {
  gap: 1rem;
}

.case-detail {
  display: grid;
  gap: 0.5rem;
}

.case-detail h3 {
  margin: 0;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.case-detail p {
  margin: 0;
}

.audience-entry {
  display: grid;
  gap: 0.55rem;
}

.eyebrow-block {
  display: grid;
  gap: 0.75rem;
}

.observation-grid {
  grid-template-columns: 1fr;
  gap: 1rem;
}

.observation-card {
  min-height: 180px;
  padding: 1.3rem 0 0;
  border: 0;
  border-top: 1px solid var(--color-line-strong);
}

.observation-card::before {
  position: static;
  display: inline-block;
  margin-bottom: 1rem;
  background: rgba(10, 10, 10, 0.34);
}

.observation-card.is-accent::before {
  background: var(--color-accent);
}

.observation-card p {
  padding-top: 0;
  font-size: clamp(1.8rem, 4vw, 2.9rem);
  line-height: 1.06;
}

.observation-card.observation-card-wide {
  min-height: auto;
}

.observation-card.observation-card-wide p {
  max-width: 14ch;
}

.form-intro {
  display: grid;
  gap: 1rem;
}

.contact-form {
  gap: 1.4rem;
}

.field label {
  font-size: 0.75rem;
  letter-spacing: 0.16em;
}

.field input,
.field textarea {
  padding: 0.9rem 0 0.8rem;
  border: 0;
  border-bottom: 1px solid var(--color-line-strong);
}

.field input:focus-visible,
.field textarea:focus-visible {
  box-shadow: none;
  border-bottom-color: var(--color-text);
}

.contact-note {
  max-width: 28rem;
}

.fine-print {
  color: var(--color-muted);
  font-size: 0.9rem;
}

.site-footer {
  padding: 1.8rem 0 3rem;
  border-top: 1px solid var(--color-line);
}

.footer-inner {
  align-items: start;
}

.footer-copy {
  max-width: 34rem;
  color: var(--color-muted);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem 1.25rem;
}

.footer-links a {
  text-decoration: none;
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--color-text);
}

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

.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 600ms ease, transform 600ms ease;
}

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

@media (min-width: 720px) {
  .cards-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .work-grid,
  .audience-grid,
  .pillar-grid,
  .principles-grid,
  .contact-grid,
  .footer-inner {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .observation-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .observation-rail {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .manifesto-grid,
  .section-layout {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .observation-card.observation-card-wide {
    grid-column: span 2;
  }
}

@media (min-width: 900px) {
  .menu-toggle {
    display: none;
  }

  .site-nav {
    position: static;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 0;
    border: 0;
    background: transparent;
    opacity: 1;
    pointer-events: auto;
    transform: none;
  }

  .hero-grid,
  .page-hero-grid,
  .split-grid {
    grid-template-columns: minmax(0, 1.3fr) minmax(320px, 0.85fr);
    align-items: start;
  }

  .hero-grid {
    gap: clamp(2rem, 5vw, 4rem);
  }

  .cards-grid.cards-grid-four {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .cards-grid.cards-grid-three,
  .work-grid,
  .audience-grid,
  .principles-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .method-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-shell {
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  }

  .case-columns {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .case-row {
    grid-template-columns: 96px minmax(0, 1fr);
    gap: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition: none !important;
    animation: none !important;
  }

  .js .reveal {
    opacity: 1;
    transform: none;
  }
}