:root {
  --bg: #f7f9fb;
  --surface: #ffffff;
  --ink: #14202b;
  --muted: #607080;
  --line: #dce4ec;
  --blue: #1769e0;
  --green: #18a46f;
  --amber: #f2a531;
  --navy: #0d1a2a;
  --shadow: 0 24px 80px rgba(20, 32, 43, 0.12);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px clamp(20px, 5vw, 72px);
  background: rgba(247, 249, 251, 0.88);
  border-bottom: 1px solid rgba(220, 228, 236, 0.8);
  backdrop-filter: blur(18px);
}

.brand,
nav {
  display: flex;
  align-items: center;
}

.brand {
  gap: 12px;
  font-weight: 750;
}

.brand-mark {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 8px;
  background: var(--navy);
  color: white;
  font-size: 13px;
  letter-spacing: 0;
}

nav {
  gap: clamp(14px, 3vw, 34px);
  color: var(--muted);
  font-size: 14px;
  font-weight: 650;
}

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

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(320px, 1.05fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
  min-height: calc(100vh - 76px);
  padding: clamp(44px, 7vw, 96px) clamp(20px, 5vw, 72px) 56px;
}

.hero h1 {
  max-width: 780px;
  margin: 0;
  font-size: clamp(44px, 6.5vw, 82px);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero p {
  max-width: 650px;
  margin: 28px 0 0;
  color: var(--muted);
  font-size: 19px;
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  padding: 0 20px;
  font-size: 14px;
  font-weight: 750;
}

.button.primary {
  background: var(--blue);
  color: white;
  box-shadow: 0 14px 26px rgba(23, 105, 224, 0.24);
}

.button.secondary {
  background: white;
  color: var(--ink);
  border: 1px solid var(--line);
}

.hero-visual {
  margin: 0;
}

.hero-visual img {
  display: block;
  width: 100%;
  min-height: 360px;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.proof {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin: 0 clamp(20px, 5vw, 72px);
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.proof div {
  min-height: 128px;
  padding: 26px;
  background: var(--surface);
}

.proof strong,
.proof span {
  display: block;
}

.proof strong {
  font-size: 17px;
}

.proof span {
  margin-top: 10px;
  color: var(--muted);
  line-height: 1.55;
}

.section {
  padding: clamp(76px, 10vw, 132px) clamp(20px, 5vw, 72px);
}

.split {
  display: grid;
  grid-template-columns: minmax(260px, 0.8fr) minmax(320px, 1.2fr);
  gap: clamp(34px, 6vw, 84px);
}

h2 {
  margin: 0;
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.04;
  letter-spacing: 0;
}

.section p,
.section-heading p,
.contact p {
  color: var(--muted);
  font-size: 17px;
  line-height: 1.7;
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.service-list article,
.standards-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
}

.service-list article {
  padding: 26px;
}

h3 {
  margin: 0;
  font-size: 20px;
}

.service-list p,
.standards-grid p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.62;
}

.standards {
  background: var(--navy);
  color: white;
}

.standards .section-heading {
  display: grid;
  grid-template-columns: minmax(260px, 0.9fr) minmax(320px, 1.1fr);
  gap: clamp(28px, 6vw, 80px);
  align-items: end;
  margin-bottom: 38px;
}

.standards .section-heading p {
  color: #b7c4d0;
  margin: 0;
}

.standards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
}

.standards-grid article {
  padding: 24px;
  background: #132437;
  border-color: #29415a;
}

.number {
  display: block;
  margin-bottom: 44px;
  color: var(--green);
  font-weight: 800;
}

.standards-grid p {
  color: #b7c4d0;
}

.process {
  background: white;
}

.process ol {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  margin: 42px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.process li {
  min-height: 210px;
  padding: 28px 24px;
  border-right: 1px solid var(--line);
}

.process li:last-child {
  border-right: 0;
}

.process strong,
.process span {
  display: block;
}

.process strong {
  color: var(--blue);
  font-size: 18px;
}

.process span {
  margin-top: 44px;
  color: var(--muted);
  line-height: 1.65;
}

.contact {
  display: grid;
  grid-template-columns: minmax(260px, 1fr) minmax(280px, 0.9fr);
  gap: clamp(30px, 6vw, 90px);
  align-items: center;
  padding: clamp(70px, 9vw, 116px) clamp(20px, 5vw, 72px);
  background: #eaf2f0;
}

address {
  display: grid;
  gap: 16px;
  font-style: normal;
}

address a,
address span {
  display: block;
  padding: 18px 20px;
  border: 1px solid rgba(20, 32, 43, 0.14);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.7);
  font-weight: 700;
}

footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  padding: 26px clamp(20px, 5vw, 72px);
  background: var(--navy);
  color: #b7c4d0;
  font-size: 13px;
}

@media (max-width: 960px) {
  .hero,
  .split,
  .standards .section-heading,
  .contact {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
  }

  .proof,
  .standards-grid,
  .process ol {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .site-header,
  footer {
    align-items: flex-start;
    flex-direction: column;
  }

  nav {
    width: 100%;
    justify-content: space-between;
    gap: 10px;
    font-size: 13px;
  }

  .hero {
    padding-top: 34px;
  }

  .hero h1 {
    font-size: 42px;
  }

  .hero p {
    font-size: 17px;
  }

  .button {
    width: 100%;
  }

  .proof,
  .service-list,
  .standards-grid,
  .process ol {
    grid-template-columns: 1fr;
  }

  .process li {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .process li:last-child {
    border-bottom: 0;
  }
}