.expertise-hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 16%, rgba(20, 139, 130, 0.22), transparent 30%),
    radial-gradient(circle at 14% 100%, rgba(199, 138, 32, 0.12), transparent 34%),
    var(--navy-950);
  color: #fff;
  padding: clamp(4rem, 7vw, 6.8rem) 0;
}

.expertise-hero::after {
  position: absolute;
  right: -180px;
  bottom: -290px;
  width: 620px;
  height: 620px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 50%;
  content: "";
  pointer-events: none;
}

.expertise-hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.04fr) minmax(360px, 0.96fr);
  gap: clamp(2.2rem, 5vw, 5rem);
  align-items: center;
}

.expertise-hero-copy {
  min-width: 0;
}

.expertise-hero h1 {
  max-width: 820px;
  color: #fff;
  font-size: clamp(3rem, 5.6vw, 5.6rem);
  line-height: 0.98;
  text-wrap: balance;
}

.expertise-hero .lede {
  max-width: 760px;
  color: rgba(255, 255, 255, 0.76);
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
}

.hero-mandates {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  margin-top: 1.55rem;
}

.hero-mandates span {
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.07);
  color: rgba(255, 255, 255, 0.82);
  padding: 0.48rem 0.72rem;
  font-size: 0.72rem;
  font-weight: 750;
}

.expertise-hero-visual {
  position: relative;
  min-width: 0;
  padding: 0 0 2.2rem 2.2rem;
}

.expertise-hero-visual > img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 30px;
  box-shadow: 0 34px 90px rgba(0, 0, 0, 0.38);
}

.hero-proof-card {
  position: absolute;
  display: grid;
  width: min(220px, 44%);
  gap: 0.25rem;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  background: rgba(7, 20, 38, 0.9);
  color: #fff;
  padding: 1rem 1.05rem;
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.28);
  backdrop-filter: blur(14px);
}

.hero-proof-card strong {
  color: var(--gold-500);
  font-family: var(--font-serif);
  font-size: clamp(1.55rem, 2.4vw, 2.25rem);
  line-height: 1;
}

.hero-proof-card span {
  color: rgba(255, 255, 255, 0.73);
  font-size: 0.74rem;
  line-height: 1.42;
}

.proof-revenue {
  left: 0;
  bottom: 0;
}

.proof-team {
  right: -0.5rem;
  top: 1.5rem;
}

.expertise-positioning {
  border-bottom: 1px solid var(--line);
  background: #fff;
  padding: 2.2rem 0;
}

.positioning-grid {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(280px, 1.1fr);
  gap: 1.5rem 3rem;
  align-items: center;
}

.positioning-grid h2 {
  margin-bottom: 0;
  font-size: clamp(1.9rem, 3vw, 3rem);
}

.positioning-grid > p {
  margin: 0;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.positioning-outcomes {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.7rem;
}

.positioning-outcomes span {
  display: grid;
  min-height: 52px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: var(--canvas);
  color: var(--navy-800);
  padding: 0.65rem;
  text-align: center;
  font-size: 0.8rem;
  font-weight: 800;
}

.expertise-heading > p {
  max-width: 560px;
}

.signature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.25rem;
}

.signature-card {
  --capability-accent: var(--teal-600);
  --capability-soft: var(--teal-100);
  display: grid;
  grid-template-rows: auto 1fr;
  min-width: 0;
  overflow: hidden;
  border: 1px solid color-mix(in srgb, var(--capability-accent) 20%, var(--line));
  border-radius: 26px;
  background: #fff;
  box-shadow: 0 16px 46px rgba(16, 35, 63, 0.09);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.signature-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 24px 58px rgba(16, 35, 63, 0.14);
}

.signature-visual {
  position: relative;
  display: grid;
  min-height: 180px;
  margin: 0;
  place-items: center;
  overflow: hidden;
  background: var(--capability-soft);
  padding: 0.8rem;
}

.signature-visual img {
  display: block;
  width: 100%;
  height: 180px;
  object-fit: contain;
  border-radius: 16px;
}

.signature-visual > span {
  position: absolute;
  right: 0.9rem;
  bottom: 0.85rem;
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 50%;
  background: rgba(7, 20, 38, 0.88);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 850;
  box-shadow: 0 12px 30px rgba(7, 20, 38, 0.22);
}

.signature-copy {
  display: grid;
  min-width: 0;
  gap: 0.8rem;
  align-content: start;
  padding: 1.35rem;
}

.signature-copy h3 {
  margin: 0;
  color: var(--navy-900);
  font-size: clamp(1.25rem, 1.8vw, 1.65rem);
  line-height: 1.2;
  overflow-wrap: anywhere;
}

.signature-copy > p,
.signature-copy li {
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.62;
}

.signature-copy > p {
  margin: 0;
}

.signature-copy ul {
  display: grid;
  gap: 0.48rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.signature-copy li {
  position: relative;
  padding-left: 1.1rem;
}

.signature-copy li::before {
  position: absolute;
  top: 0.64em;
  left: 0;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--capability-accent);
  content: "";
}

.signature-copy .proof-link {
  margin-top: auto;
  color: var(--capability-accent);
  overflow-wrap: anywhere;
}

.signature-card.is-teal { --capability-accent: #0f766e; --capability-soft: #e4f5f2; }
.signature-card.is-blue { --capability-accent: #176b87; --capability-soft: #e9f5f8; }
.signature-card.is-gold { --capability-accent: #9d6812; --capability-soft: #fff2d8; }
.signature-card.is-green { --capability-accent: #147a59; --capability-soft: #e5f4ec; }
.signature-card.is-copper { --capability-accent: #9a5a3a; --capability-soft: #fbf0e9; }
.signature-card.is-violet { --capability-accent: #5c4bd8; --capability-soft: #efedff; }

.operating-system-section {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(circle at 5% 20%, rgba(20, 139, 130, 0.18), transparent 28%),
    var(--navy-950);
  color: #fff;
  padding: clamp(4.5rem, 7vw, 7rem) 0;
}

.operating-system-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(300px, 0.8fr);
  gap: 2rem 4rem;
  align-items: end;
  margin-bottom: 2.2rem;
}

.operating-system-intro h2 {
  max-width: 720px;
  color: #fff;
  font-size: clamp(2.3rem, 4.2vw, 4.3rem);
}

.operating-system-intro > p {
  margin: 0;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.75;
}

.operating-system {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.045);
}

.operating-system article {
  position: relative;
  min-height: 230px;
  padding: 1.35rem;
}

.operating-system article + article {
  border-left: 1px solid rgba(255, 255, 255, 0.12);
}

.operating-system article:not(:last-child)::after {
  position: absolute;
  z-index: 2;
  top: 50%;
  right: -10px;
  width: 20px;
  height: 20px;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  border-right: 1px solid rgba(255, 255, 255, 0.2);
  background: #0b1d32;
  content: "";
  transform: translateY(-50%) rotate(45deg);
}

.operating-system span {
  color: var(--gold-500);
  font-size: 0.72rem;
  font-weight: 850;
}

.operating-system h3 {
  margin-top: 1.2rem;
  color: #fff;
  font-size: 1.35rem;
}

.operating-system p {
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.83rem;
  line-height: 1.62;
}

.expertise-evidence {
  background: linear-gradient(180deg, #eef3f5, #f8fafb);
}

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

.evidence-grid article {
  display: grid;
  min-width: 0;
  min-height: 188px;
  gap: 0.55rem;
  align-content: start;
  border: 1px solid rgba(16, 35, 63, 0.1);
  border-radius: 22px;
  background: #fff;
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
}

.evidence-grid strong {
  color: var(--teal-700);
  font-family: var(--font-serif);
  font-size: clamp(2rem, 3.2vw, 3.15rem);
  line-height: 1;
}

.evidence-grid span {
  color: var(--navy-900);
  font-weight: 800;
  line-height: 1.35;
}

.evidence-grid p {
  margin: 0;
  color: var(--muted);
  font-size: 0.8rem;
  line-height: 1.55;
}

.principles-heading {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.75fr);
  gap: 2rem 4rem;
  align-items: end;
  margin-bottom: clamp(2rem, 4vw, 3.4rem);
}

.principles-heading h2 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2.4rem, 4vw, 4.35rem);
}

.principles-heading > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.principles-list {
  display: grid;
  gap: 1.35rem;
}

.principle-row {
  --principle-accent: var(--teal-700);
  display: grid;
  grid-template-columns: minmax(280px, 0.78fr) minmax(0, 1.22fr);
  min-width: 0;
  overflow: hidden;
  border: 1px solid rgba(16, 35, 63, 0.1);
  border-radius: 28px;
  background: #fff;
  box-shadow: 0 16px 46px rgba(16, 35, 63, 0.09);
}

.principle-row.is-reversed {
  grid-template-columns: minmax(0, 1.22fr) minmax(280px, 0.78fr);
}

.principle-row.is-reversed .principle-visual {
  grid-column: 2;
  grid-row: 1;
}

.principle-row.is-reversed .principle-copy {
  grid-column: 1;
  grid-row: 1;
}

.principle-visual {
  position: relative;
  display: grid;
  min-height: 430px;
  margin: 0;
  place-items: center;
  overflow: hidden;
  background: linear-gradient(145deg, var(--teal-100), #edf3f5);
  padding: 1.25rem;
}

.principle-visual img {
  display: block;
  width: 100%;
  max-height: 390px;
  object-fit: contain;
  border-radius: 20px;
  box-shadow: 0 18px 42px rgba(16, 35, 63, 0.16);
}

.principle-visual > span {
  position: absolute;
  top: 1.3rem;
  left: 1.3rem;
  display: grid;
  width: 48px;
  height: 48px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  background: rgba(7, 20, 38, 0.9);
  color: #fff;
  font-size: 0.76rem;
  font-weight: 850;
  box-shadow: 0 12px 30px rgba(7, 20, 38, 0.22);
}

.principle-copy {
  display: grid;
  min-width: 0;
  gap: 0.8rem;
  align-content: center;
  padding: clamp(1.7rem, 4vw, 3.3rem);
}

.principle-label {
  margin: 0;
  color: var(--teal-700);
  font-size: 0.72rem;
  font-weight: 850;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.principle-copy h3 {
  margin: 0;
  color: var(--navy-900);
  font-size: clamp(2rem, 3.5vw, 3.4rem);
  line-height: 1.05;
  overflow-wrap: anywhere;
}

.principle-copy > p {
  margin: 0;
  color: var(--muted);
  line-height: 1.72;
}

.principle-copy .principle-statement {
  color: var(--navy-800);
  font-family: var(--font-serif);
  font-size: clamp(1.15rem, 1.9vw, 1.45rem);
  line-height: 1.45;
}

.principle-copy ul {
  display: grid;
  gap: 0.52rem;
  margin: 0.25rem 0 0;
  padding: 0;
  list-style: none;
}

.principle-copy li {
  position: relative;
  min-width: 0;
  padding-left: 1.15rem;
  color: var(--navy-700);
  font-size: 0.88rem;
  line-height: 1.55;
  overflow-wrap: anywhere;
}

.principle-copy li::before {
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--teal-600);
  content: "";
}

.principle-outcome {
  display: grid;
  gap: 0.25rem;
  margin-top: 0.15rem;
  border-left: 4px solid var(--gold-500);
  border-radius: 0 14px 14px 0;
  background: var(--gold-100);
  padding: 0.85rem 1rem;
}

.principle-outcome strong {
  color: var(--gold-600);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.principle-outcome span {
  color: var(--navy-800);
  font-size: 0.86rem;
  font-weight: 750;
  line-height: 1.48;
}

.principle-copy .text-link {
  margin-top: 0.2rem;
  color: var(--teal-700);
  overflow-wrap: anywhere;
}

.mandate-pathways-section {
  background: var(--canvas);
}

.mandate-pathways {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
}

.mandate-pathways article {
  display: grid;
  min-width: 0;
  gap: 0.65rem;
  align-content: start;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: #fff;
  padding: 1.35rem;
  box-shadow: var(--shadow-sm);
}

.mandate-pathways article > span {
  color: var(--gold-600);
  font-size: 0.72rem;
  font-weight: 850;
}

.mandate-pathways h3 {
  margin: 0;
  font-size: 1.35rem;
}

.mandate-pathways p {
  margin: 0 0 0.35rem;
  color: var(--muted);
  font-size: 0.84rem;
  line-height: 1.55;
}

.mandate-pathways a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  border-top: 1px solid var(--line);
  color: var(--teal-700);
  padding-top: 0.65rem;
  text-decoration: none;
  font-size: 0.82rem;
  font-weight: 750;
}

.mandate-pathways a::after {
  content: "→";
}

.expertise-final-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  margin-top: 2rem;
  border: 1px solid rgba(16, 35, 63, 0.1);
  border-radius: 24px;
  background: #fff;
  padding: clamp(1.4rem, 3vw, 2.2rem);
  box-shadow: var(--shadow-sm);
}

.expertise-final-cta h2 {
  margin-bottom: 0;
  font-size: clamp(1.7rem, 3vw, 2.7rem);
}

@media (max-width: 1100px) {
  .expertise-hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(320px, 0.86fr);
  }

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

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

  .operating-system article:nth-child(4),
  .operating-system article:nth-child(5) {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
  }

  .operating-system article:nth-child(4) {
    border-left: 0;
  }

  .operating-system article::after {
    display: none;
  }

  .principle-row,
  .principle-row.is-reversed {
    grid-template-columns: minmax(250px, 0.7fr) minmax(0, 1.3fr);
  }

  .principle-row.is-reversed .principle-visual {
    grid-column: 1;
  }

  .principle-row.is-reversed .principle-copy {
    grid-column: 2;
  }
}

@media (max-width: 900px) {
  .expertise-hero-grid,
  .positioning-grid,
  .operating-system-intro,
  .principles-heading {
    grid-template-columns: 1fr;
  }

  .expertise-hero-visual {
    max-width: 760px;
    padding-left: 1.6rem;
  }

  .positioning-outcomes {
    grid-column: auto;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

  .principle-row,
  .principle-row.is-reversed {
    grid-template-columns: 1fr;
  }

  .principle-row.is-reversed .principle-visual,
  .principle-row.is-reversed .principle-copy {
    grid-column: 1;
    grid-row: auto;
  }

  .principle-visual {
    min-height: 330px;
  }

  .principle-visual img {
    max-height: 300px;
  }

  .expertise-final-cta {
    align-items: flex-start;
    flex-direction: column;
  }
}

@media (max-width: 680px) {
  .expertise-hero {
    padding-top: 3.6rem;
  }

  .expertise-hero h1 {
    font-size: clamp(2.65rem, 12vw, 4rem);
  }

  .expertise-hero-visual {
    padding: 0 0 3.5rem;
  }

  .hero-proof-card {
    width: calc(50% - 0.35rem);
    min-height: 104px;
    padding: 0.8rem;
  }

  .proof-revenue {
    left: 0;
    bottom: 0;
  }

  .proof-team {
    top: auto;
    right: 0;
    bottom: 0;
  }

  .positioning-outcomes,
  .signature-grid,
  .operating-system,
  .evidence-grid,
  .mandate-pathways {
    grid-template-columns: 1fr;
  }

  .operating-system article + article,
  .operating-system article:nth-child(4),
  .operating-system article:nth-child(5) {
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    border-left: 0;
  }

  .operating-system article {
    min-height: auto;
  }

  .signature-visual {
    min-height: 160px;
  }

  .signature-visual img {
    height: 160px;
  }

  .principle-visual {
    min-height: 250px;
    padding: 0.9rem;
  }

  .principle-visual img {
    max-height: 230px;
    border-radius: 16px;
  }

  .principle-copy {
    padding: 1.35rem;
  }

  .principle-copy h3 {
    font-size: clamp(1.85rem, 9vw, 2.65rem);
  }
}