:root {
  --blue: #104890;
  --blue-deep: #073a79;
  --ink: #17202a;
  --muted: #5f6873;
  --line: #d9dee5;
  --soft: #f5f7fa;
  --white: #ffffff;
  --max: 1180px;
}

* { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--white);
  font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; }

.container {
  width: min(calc(100% - 40px), var(--max));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255,255,255,.94);
  border-bottom: 1px solid rgba(217,222,229,.8);
  backdrop-filter: blur(10px);
}

.nav {
  height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand img {
  display: block;
  width: 210px;
  height: auto;
}

nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

nav a {
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  color: #38414b;
}

nav a:hover { color: var(--blue); }

.nav-contact {
  padding: 10px 16px;
  border: 1px solid var(--blue);
  color: var(--blue);
}

.hero {
  padding: 110px 0 105px;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  gap: 76px;
  align-items: center;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--blue);
  font-size: 12px;
  line-height: 1;
  font-weight: 800;
  letter-spacing: .16em;
  text-transform: uppercase;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(46px, 5.4vw, 76px);
  line-height: 1.02;
  letter-spacing: -.045em;
  font-weight: 650;
}

.lead {
  max-width: 670px;
  margin-bottom: 34px;
  color: var(--muted);
  font-size: 20px;
  line-height: 1.55;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 22px;
  color: var(--white);
  background: var(--blue);
  border: 1px solid var(--blue);
  text-decoration: none;
  font-size: 14px;
  font-weight: 700;
  transition: transform .18s ease, background .18s ease;
}

.button:hover {
  transform: translateY(-1px);
  background: var(--blue-deep);
}

.concept-card {
  padding: 40px 36px 34px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(16,72,144,.04), rgba(255,255,255,0) 45%),
    var(--white);
}

.concept-labels {
  display: grid;
  grid-template-columns: 1fr .8fr 1fr;
  gap: 12px;
  margin-bottom: 26px;
  color: #52606e;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  text-align: center;
}

.flow {
  height: 130px;
  display: grid;
  grid-template-columns: 1fr 56px 1fr;
  gap: 18px;
  align-items: center;
}

.incoming,
.outgoing {
  position: relative;
  height: 100px;
}

.incoming i,
.outgoing i {
  position: absolute;
  top: 50%;
  width: 94%;
  height: 8px;
  background: linear-gradient(90deg, #0b3e7f, #1456a5);
  border-radius: 99px;
}

.incoming i:first-child {
  right: 0;
  transform: translateY(-50%) rotate(25deg);
  transform-origin: right center;
}

.incoming i:last-child {
  right: 0;
  transform: translateY(-50%) rotate(-25deg);
  transform-origin: right center;
}

.outgoing i:first-child {
  left: 0;
  transform: translateY(-50%) rotate(-25deg);
  transform-origin: left center;
}

.outgoing i:last-child {
  left: 0;
  transform: translateY(-50%) rotate(25deg);
  transform-origin: left center;
}

.dot {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(145deg, #1558a8, #0b3e7f);
  box-shadow: 0 12px 30px rgba(16,72,144,.16);
}

.concept-card p {
  margin: 18px 0 0;
  color: var(--muted);
  line-height: 1.65;
  text-align: center;
}

.section {
  padding: 98px 0;
  border-top: 1px solid var(--line);
}

.section h2,
.contact h2 {
  max-width: 780px;
  margin-bottom: 54px;
  font-size: clamp(34px, 4vw, 52px);
  line-height: 1.08;
  letter-spacing: -.035em;
  font-weight: 620;
}

.services {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--line);
}

.services article {
  min-height: 280px;
  padding: 32px 30px 20px 0;
}

.services article + article {
  padding-left: 30px;
  border-left: 1px solid var(--line);
}

.number {
  display: block;
  margin-bottom: 44px;
  color: var(--blue);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .12em;
}

.services h3,
.principles h3 {
  margin-bottom: 14px;
  font-size: 21px;
}

.services p,
.principles p {
  margin-bottom: 0;
  color: var(--muted);
  line-height: 1.68;
}

.approach {
  background: var(--soft);
}

.approach-grid {
  display: grid;
  grid-template-columns: .95fr 1.05fr;
  gap: 90px;
}

.approach h2 { margin-bottom: 0; }

.principles {
  display: grid;
  gap: 0;
}

.principles > div {
  padding: 25px 0;
  border-top: 1px solid #cfd6df;
}

.principles > div:last-child {
  border-bottom: 1px solid #cfd6df;
}

.contact {
  padding: 92px 0;
  color: white;
  background:
    radial-gradient(circle at 80% 20%, rgba(255,255,255,.10), transparent 27%),
    linear-gradient(135deg, #073a79, #104890 65%, #1359aa);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1.08fr .92fr;
  gap: 90px;
  align-items: end;
}

.contact h2 {
  margin-bottom: 0;
}

.contact p {
  max-width: 520px;
  margin-bottom: 28px;
  color: rgba(255,255,255,.82);
  font-size: 18px;
  line-height: 1.6;
}

.eyebrow.light { color: rgba(255,255,255,.72); }

.button-light {
  background: white;
  border-color: white;
  color: var(--blue);
}

.button-light:hover {
  background: #f3f6fa;
  color: var(--blue-deep);
}

footer {
  padding: 28px 0;
  background: #fff;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
}

.footer-inner img {
  width: 150px;
  height: auto;
}

.footer-inner p {
  margin: 0;
  color: #74808d;
  font-size: 12px;
}

@media (max-width: 880px) {
  .hero { padding: 72px 0 78px; }

  .hero-grid,
  .approach-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 54px;
  }

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

  .services article {
    min-height: auto;
    padding: 30px 0;
    border-bottom: 1px solid var(--line);
  }

  .services article + article {
    padding-left: 0;
    border-left: 0;
  }

  .number { margin-bottom: 20px; }

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

@media (max-width: 640px) {
  .container { width: min(calc(100% - 28px), var(--max)); }

  .nav { height: 70px; }

  .brand img { width: 168px; }

  nav a:not(.nav-contact) { display: none; }

  h1 { font-size: 44px; }
  .lead { font-size: 18px; }

  .concept-card { padding: 28px 18px; }

  .concept-labels {
    grid-template-columns: 1fr .9fr 1fr;
    font-size: 9px;
  }

  .flow {
    grid-template-columns: 1fr 42px 1fr;
    gap: 10px;
    height: 95px;
  }

  .dot {
    width: 42px;
    height: 42px;
  }

  .incoming i,
  .outgoing i { height: 6px; }

  .section { padding: 72px 0; }

  .section h2,
  .contact h2 {
    margin-bottom: 38px;
  }

  .contact { padding: 72px 0; }

  .footer-inner {
    align-items: flex-start;
    flex-direction: column;
  }
}

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