:root {
  --navy: #10233f;
  --blue: #315d9a;
  --sky: #dbeafe;
  --paper: #f7f9fc;
  --text: #182235;
  --muted: #68758a;
  --white: #ffffff;
  --amber: #d49b3f;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
}

a {
  color: inherit;
}

.header {
  position: sticky;
  top: 0;
  z-index: 10;
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  background: rgba(247, 249, 252, 0.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(16, 35, 63, 0.12);
}

.mark {
  text-decoration: none;
  font-size: 24px;
  font-weight: 900;
  color: var(--navy);
}

.menu {
  display: flex;
  gap: 28px;
}

.menu a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 800;
}

.mobile {
  display: none;
}

.hero {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  min-height: 690px;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
  align-items: stretch;
  padding: 52px 0;
}

.hero-copy {
  padding: clamp(34px, 6vw, 74px);
  background: var(--white);
  border-radius: 0 0 80px 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  box-shadow: 0 24px 70px rgba(16, 35, 63, 0.08);
}

.hero-aside {
  background: var(--navy);
  color: var(--white);
  border-radius: 80px 0 0 0;
  padding: 44px;
  display: flex;
  align-items: end;
}

.label {
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 12px;
  font-weight: 900;
}

h1 {
  font-size: clamp(44px, 6vw, 86px);
  line-height: 0.98;
  letter-spacing: -0.07em;
  margin: 18px 0 24px;
  color: var(--navy);
}

h2 {
  font-size: clamp(32px, 4vw, 58px);
  line-height: 1;
  letter-spacing: -0.055em;
  margin: 12px 0 22px;
  color: var(--navy);
}

h3 {
  font-size: 24px;
  margin: 0 0 12px;
}

p {
  color: var(--muted);
  font-size: 18px;
  line-height: 1.75;
}

.hero p {
  max-width: 760px;
  font-size: 21px;
}

.hero-aside p {
  color: var(--sky);
}

.competencies,
.portfolio,
.governance-board,
.cadence,
.decision-room,
.standards,
.essay,
.contact {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 78px 0;
}

.competencies {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 34px;
}

.accordion {
  display: grid;
  gap: 14px;
}

.item {
  background: var(--white);
  border-radius: 24px;
  border: 1px solid rgba(16, 35, 63, 0.1);
  overflow: hidden;
}

.item button {
  width: 100%;
  border: 0;
  background: transparent;
  padding: 24px;
  text-align: left;
  color: var(--navy);
  font-size: 23px;
  font-weight: 900;
  cursor: pointer;
}

.content {
  display: none;
  padding: 0 24px 24px;
}

.item.open .content {
  display: block;
}

.portfolio {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 30px;
}

.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.portfolio-grid div {
  background: var(--navy);
  color: var(--white);
  padding: 28px;
  border-radius: 30px;
  min-height: 210px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.portfolio-grid strong {
  color: var(--amber);
  font-size: 38px;
}

.portfolio-grid span {
  font-size: 19px;
  line-height: 1.5;
}

.governance-board {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 26px;
}

.board-title {
  padding: 34px;
  background: var(--white);
  border-radius: 34px;
}

.board-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.board-grid div {
  min-height: 220px;
  padding: 26px;
  border-radius: 28px;
  background: var(--navy);
  color: var(--white);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.board-grid span {
  color: var(--sky);
  font-weight: 800;
}

.board-grid strong {
  color: var(--amber);
  font-size: 34px;
}

.board-grid p {
  color: var(--sky);
  margin: 0;
}

.cadence {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 28px;
  align-items: stretch;
}

.cadence-copy {
  padding: 30px;
  border-left: 8px solid var(--amber);
  background: var(--white);
}

.cadence-lanes {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cadence-lanes article {
  min-height: 360px;
  padding: 28px;
  background: linear-gradient(180deg, var(--sky), var(--white));
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.cadence-lanes span {
  color: var(--blue);
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 12px;
}

.decision-room {
  padding: 48px;
  border-radius: 34px;
  background: var(--navy);
  color: var(--white);
}

.decision-room h2 {
  color: var(--white);
}

.decision-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 28px 0;
}

.decision {
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  border-radius: 999px;
  padding: 14px 20px;
  font-weight: 900;
  cursor: pointer;
}

.decision.active {
  background: var(--amber);
  color: var(--navy);
}

.decision-output {
  color: var(--sky);
  max-width: 860px;
  font-size: 22px;
  margin: 0;
}

.standards {
  background: var(--sky);
  width: 100%;
  padding-left: max(24px, calc((100vw - 1180px) / 2));
  padding-right: max(24px, calc((100vw - 1180px) / 2));
}

.standard-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.standard-list article {
  background: var(--white);
  padding: 30px;
  border-top: 6px solid var(--blue);
}

.essay {
  padding: 62px;
  background: var(--white);
  border-radius: 44px;
  box-shadow: 0 20px 60px rgba(16, 35, 63, 0.07);
}

.contact {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 24px;
}

.contact > div,
form {
  background: var(--white);
  border-radius: 34px;
  padding: 34px;
}

form {
  display: grid;
  gap: 16px;
}

label {
  display: grid;
  gap: 8px;
  font-weight: 900;
  color: var(--navy);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid rgba(16, 35, 63, 0.16);
  border-radius: 14px;
  padding: 14px 16px;
  font: inherit;
  background: #fbfdff;
}

textarea {
  min-height: 130px;
  resize: vertical;
}

form button,
.mobile {
  border: 0;
  background: var(--blue);
  color: var(--white);
  padding: 14px 20px;
  border-radius: 12px;
  font-weight: 900;
  cursor: pointer;
}

.reply {
  margin: 0;
  color: var(--blue);
  font-weight: 900;
}

footer {
  text-align: center;
  padding: 34px;
}

@media (max-width: 900px) {
  .mobile {
    display: inline-flex;
  }

  .menu {
    display: none;
    position: absolute;
    top: 82px;
    left: 16px;
    right: 16px;
    padding: 22px;
    background: var(--white);
    border-radius: 24px;
    flex-direction: column;
  }

  .menu.open {
    display: flex;
  }

  .hero,
  .competencies,
  .portfolio,
  .governance-board,
  .cadence,
  .contact {
    grid-template-columns: 1fr;
  }

  .standard-list,
  .portfolio-grid,
  .board-grid,
  .cadence-lanes {
    grid-template-columns: 1fr;
  }

  .hero-copy,
  .hero-aside {
    border-radius: 30px;
  }
}