:root {
  --ink: #15191d;
  --muted: #59616a;
  --paper: #f6f7f4;
  --white: #ffffff;
  --teal: #0d6b63;
  --teal-dark: #084b46;
  --amber: #d88a24;
  --line: #d8ddd8;
  --soft: #e9eeea;
  --max: 1180px;
  --radius: 8px;
  --sans: Inter, "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Georgia, serif;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 78px;
  background: var(--paper);
}

body {
  min-width: 320px;
  margin: 0;
  overflow-x: hidden;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0;
}

body.menu-open { overflow: hidden; }

img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; }
h1, h2, h3, p { margin-top: 0; }
h1, h2, h3 { letter-spacing: 0; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}

.section-shell {
  width: min(var(--max), calc(100% - 48px));
  margin-inline: auto;
}

.site-header {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  display: grid;
  min-height: 68px;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  padding: 0 max(24px, calc((100vw - var(--max)) / 2));
  border-bottom: 1px solid rgba(21, 25, 29, 0.12);
  background: rgba(246, 247, 244, 0.95);
  backdrop-filter: blur(16px);
}

.brand { font-weight: 800; }
.desktop-nav { display: flex; gap: 30px; color: var(--muted); font-size: 14px; }
.desktop-nav a:hover { color: var(--ink); }
.header-action { justify-self: end; color: var(--teal); font-size: 14px; font-weight: 800; }
.menu-toggle { display: none; }
.mobile-nav { display: none; }

.hero {
  position: relative;
  display: flex;
  min-height: min(760px, 86vh);
  align-items: flex-end;
  overflow: hidden;
  padding: 140px 24px 72px;
  background: #13201d;
  color: var(--white);
}

.hero-field {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.68;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: rgba(5, 16, 14, 0.57);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: min(var(--max), 100%);
  margin-inline: auto;
}

.eyebrow {
  margin-bottom: 18px;
  color: var(--teal);
  font-size: 12px;
  font-weight: 800;
  text-transform: uppercase;
}

.hero .eyebrow { color: #9ee2d8; }

.hero h1 {
  max-width: 900px;
  margin-bottom: 20px;
  font-family: var(--serif);
  font-size: clamp(4.3rem, 10vw, 8.5rem);
  font-weight: 500;
  line-height: 0.9;
}

.hero-lede {
  max-width: 720px;
  margin-bottom: 28px;
  color: rgba(255, 255, 255, 0.84);
  font-size: clamp(1.25rem, 2vw, 1.75rem);
  line-height: 1.35;
}

.hero-actions,
.contact-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 12px 18px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 800;
  transition: transform 180ms ease, background-color 180ms ease, color 180ms ease;
}

.button:hover { transform: translateY(-2px); }
.button-primary { background: var(--amber); color: #1d1508; }
.button-primary:hover { background: #eda542; }
.button-secondary { border-color: currentColor; background: transparent; color: inherit; }
.button-dark { background: var(--ink); color: var(--white); }

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 24px;
  margin: 36px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.72);
  font-size: 13px;
  list-style: none;
}

.role-lenses,
.approach { padding-block: 96px; }

.section-intro { max-width: 820px; margin-bottom: 48px; }

.section-intro h2,
.contact h2 {
  margin-bottom: 18px;
  font-family: var(--serif);
  font-size: clamp(2.65rem, 5.5vw, 5.1rem);
  font-weight: 500;
  line-height: 0.98;
}

.lens-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-block: 1px solid var(--line);
}

.lens { padding: 36px 32px 40px 0; }
.lens + .lens { padding-left: 32px; border-left: 1px solid var(--line); }
.lens-number, .case-index { color: var(--teal); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.lens h3, .case-study h3, .network-proof h3 { margin-bottom: 14px; font-size: 1.6rem; line-height: 1.15; }
.lens p:not(.lens-number) { max-width: 520px; color: var(--muted); }
.text-link { display: inline-block; margin-top: 10px; border-bottom: 2px solid var(--amber); font-weight: 800; }

.work { padding-block: 96px; background: var(--white); }

.case-study {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(360px, 0.9fr);
  gap: 48px;
  align-items: center;
  padding-block: 56px;
  border-top: 1px solid var(--line);
}

.case-study-alt .case-copy { order: 2; }
.case-study-alt .case-visual { order: 1; }
.case-study h3 { font-family: var(--serif); font-size: clamp(2.6rem, 5vw, 4.8rem); font-weight: 500; }
.case-summary { max-width: 620px; color: var(--muted); font-size: 1.12rem; }
.case-details { margin: 26px 0; }
.case-details div { display: grid; grid-template-columns: 92px 1fr; gap: 20px; padding: 13px 0; border-top: 1px solid var(--line); }
.case-details dt { color: var(--teal); font-size: 12px; font-weight: 800; text-transform: uppercase; }
.case-details dd { margin: 0; }
.case-visual { margin: 0; padding: 22px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--soft); }
.case-visual img { width: 100%; aspect-ratio: 4 / 3; object-fit: contain; }

.network-proof {
  display: grid;
  grid-template-columns: 0.8fr 1.1fr 1fr;
  gap: 34px;
  align-items: center;
  padding: 48px 0 0;
  border-top: 1px solid var(--line);
}

.network-proof p { color: var(--muted); }
.network-proof img { width: 100%; max-height: 220px; object-fit: contain; }

.approach-list { margin: 0; padding: 0; border-top: 1px solid var(--line); list-style: none; }
.approach-list li { display: grid; grid-template-columns: 72px 1fr; gap: 24px; padding: 28px 0; border-bottom: 1px solid var(--line); }
.approach-list > li > span { color: var(--amber); font-weight: 800; }
.approach-list h3 { margin-bottom: 5px; font-size: 1.25rem; }
.approach-list p { margin-bottom: 0; color: var(--muted); }

.contact { padding-block: 100px; background: var(--teal-dark); color: var(--white); }
.contact-inner { max-width: 900px; margin-left: max(24px, calc((100vw - var(--max)) / 2)); }
.contact .eyebrow { color: #9ee2d8; }
.contact p:not(.eyebrow) { max-width: 740px; margin-bottom: 28px; color: rgba(255, 255, 255, 0.76); font-size: 1.12rem; }

.site-footer { display: flex; justify-content: space-between; gap: 24px; padding-block: 26px; color: var(--muted); font-size: 13px; }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .button { transition: none; }
}

@media (max-width: 820px) {
  .site-header { grid-template-columns: 1fr auto; padding-inline: 20px; }
  .desktop-nav, .header-action { display: none; }
  .menu-toggle { position: relative; display: block; width: 44px; height: 44px; border: 0; background: transparent; }
  .menu-toggle span { position: absolute; left: 10px; width: 24px; height: 2px; background: var(--ink); transition: transform 180ms ease; }
  .menu-toggle span:first-child { top: 17px; }
  .menu-toggle span:last-child { top: 25px; }
  body.menu-open .menu-toggle span:first-child { top: 21px; transform: rotate(45deg); }
  body.menu-open .menu-toggle span:last-child { top: 21px; transform: rotate(-45deg); }
  .mobile-nav { position: fixed; inset: 68px 0 0; z-index: 45; display: none; align-content: start; gap: 0; padding: 28px 24px; background: var(--paper); }
  body.menu-open .mobile-nav { display: grid; }
  .mobile-nav a { padding: 20px 0; border-bottom: 1px solid var(--line); font-family: var(--serif); font-size: 2rem; }
  .hero { min-height: 720px; padding: 130px 24px 50px; }
  .lens-grid { grid-template-columns: 1fr; }
  .lens { padding: 28px 0; }
  .lens + .lens { padding-left: 0; border-top: 1px solid var(--line); border-left: 0; }
  .case-study { grid-template-columns: 1fr; gap: 26px; }
  .case-study-alt .case-copy, .case-study-alt .case-visual { order: initial; }
  .case-visual { max-width: 620px; }
  .network-proof { grid-template-columns: 1fr; }
  .network-proof img { max-width: 520px; }
  .contact-inner { margin-inline: auto; }
}

@media (max-width: 520px) {
  .section-shell { width: min(var(--max), calc(100% - 32px)); }
  .hero h1 { font-size: 4rem; }
  .hero-facts { display: grid; }
  .role-lenses, .approach, .work { padding-block: 72px; }
  .case-study { padding-block: 42px; }
  .case-details div { grid-template-columns: 1fr; gap: 4px; }
  .approach-list li { grid-template-columns: 46px 1fr; gap: 12px; }
  .site-footer { display: grid; }
}