:root {
  --ink: #08111f;
  --blue: #1957ff;
  --blue-dark: #0b2c88;
  --paper: #f6f8fc;
  --muted: #65718a;
  --line: #dfe5f0;
  --white: #ffffff;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(circle at top right, #dfe8ff 0, transparent 35%), var(--paper);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 6vw;
  background: rgba(246, 248, 252, 0.86);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(18px);
}

.brand {
  font-weight: 900;
  letter-spacing: -0.04em;
  font-size: 1.4rem;
}

.brand span {
  color: var(--blue);
}

.nav {
  display: flex;
  gap: 26px;
  color: var(--muted);
  font-weight: 700;
}

.menu-toggle {
  display: none;
}

.hero {
  min-height: 720px;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) 420px;
  gap: 54px;
  align-items: center;
  padding: 70px 6vw 90px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--blue);
  font-weight: 900;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.76rem;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 900px;
  font-size: clamp(3rem, 7vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
  margin-bottom: 28px;
}

h2 {
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

.lead {
  max-width: 720px;
  color: var(--muted);
  font-size: 1.2rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 34px;
}

.button,
button {
  border: 0;
  border-radius: 999px;
  padding: 15px 22px;
  font-weight: 900;
  cursor: pointer;
}

.primary,
.contact-form button {
  background: var(--blue);
  color: var(--white);
  box-shadow: 0 20px 45px rgba(25, 87, 255, 0.25);
}

.ghost {
  background: var(--white);
  border: 1px solid var(--line);
}

.signal-card {
  background: linear-gradient(160deg, var(--ink), #13294b);
  color: var(--white);
  border-radius: 36px;
  padding: 30px;
  box-shadow: 0 35px 80px rgba(8, 17, 31, 0.28);
}

.card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
}

.card-top strong {
  font-size: 3rem;
}

.bar {
  height: 12px;
  background: rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 26px;
}

.bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, #70e1ff, var(--blue));
}

.signal-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 14px;
}

.signal-card li {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
}

.signal-card span {
  color: #b8c7ef;
}

.logos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  margin: 0 6vw;
  border: 1px solid var(--line);
  background: var(--line);
}

.logos span {
  padding: 28px;
  background: var(--white);
  font-weight: 900;
  color: var(--blue-dark);
  text-align: center;
}

.section {
  padding: 110px 6vw;
}

.split {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.service-grid article,
.insight-grid article,
.method-panel {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: 28px;
}

.service-grid span {
  display: inline-grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: #eaf0ff;
  color: var(--blue);
  font-weight: 900;
  margin-bottom: 30px;
}

.service-grid p,
.feature p,
.method-panel p,
.footer p {
  color: var(--muted);
  line-height: 1.7;
}

.method {
  background: var(--white);
}

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

.step {
  background: #eef2fa;
  color: var(--muted);
}

.step.active {
  background: var(--ink);
  color: var(--white);
}

.method-panel {
  max-width: 780px;
}

.insight-grid {
  display: grid;
  grid-template-columns: 1.3fr repeat(3, 1fr);
  gap: 18px;
}

.insight-grid strong {
  display: block;
  color: var(--blue);
  font-size: 2.4rem;
  letter-spacing: -0.06em;
  margin-bottom: 14px;
}

.boardroom {
  display: grid;
  grid-template-columns: 0.8fr 1.2fr;
  gap: 38px;
  background: linear-gradient(180deg, #eef3ff, var(--paper));
}

.boardroom-copy p,
.deliverables p,
.sector-list span,
.engagement-steps p {
  color: var(--muted);
  line-height: 1.7;
}

.deliverables {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.deliverables article {
  padding: 28px;
  border-radius: 28px;
  background: var(--white);
  border: 1px solid var(--line);
  box-shadow: 0 18px 45px rgba(8, 17, 31, 0.06);
}

.sectors {
  background: var(--white);
}

.sector-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 28px;
}

.sector-list div {
  padding: 24px;
  border-radius: 24px;
  background: #f5f7fc;
  border: 1px solid var(--line);
}

.sector-list b,
.sector-list span {
  display: block;
}

.sector-list b {
  margin-bottom: 12px;
  color: var(--blue-dark);
}

.engagement {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
}

.engagement-steps {
  display: grid;
  gap: 14px;
}

.engagement-steps p {
  margin: 0;
  padding: 22px;
  border-left: 5px solid var(--blue);
  border-radius: 0 20px 20px 0;
  background: rgba(255, 255, 255, 0.78);
}

.footer {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 46px;
  padding: 90px 6vw;
  background: var(--ink);
  color: var(--white);
}

.footer a {
  color: #8fb2ff;
  font-weight: 900;
}

.contact-form {
  display: grid;
  gap: 14px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--white);
  padding: 15px;
  font: inherit;
}

.contact-form textarea {
  min-height: 120px;
}

.form-note {
  min-height: 24px;
}

@media (max-width: 880px) {
  .menu-toggle {
    display: inline-flex;
    background: var(--ink);
    color: var(--white);
  }

  .nav {
    position: absolute;
    inset: 72px 6vw auto;
    display: none;
    flex-direction: column;
    padding: 22px;
    border-radius: 22px;
    background: var(--white);
    box-shadow: 0 18px 45px rgba(8, 17, 31, 0.16);
  }

  .nav.open {
    display: flex;
  }

  .hero,
  .split,
  .footer,
  .insight-grid,
  .boardroom,
  .engagement {
    grid-template-columns: 1fr;
  }

  .logos,
  .service-grid,
  .deliverables,
  .sector-list {
    grid-template-columns: 1fr;
  }
}