:root {
  --ink: #10233f;
  --muted: #5e6f84;
  --blue: #276fb6;
  --cyan: #43b5c9;
  --gold: #f1ae3d;
  --paper: #ffffff;
  --soft: #f4f8fb;
  --line: #dce7ef;
  --shadow: 0 18px 50px rgba(16, 35, 63, 0.12);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background: var(--paper);
}

img {
  display: block;
  max-width: 100%;
}

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;
  min-height: 78px;
  padding: 14px clamp(18px, 5vw, 72px);
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(12px);
}

.brand img {
  width: clamp(95px, 12vw, 165px);
  height: auto;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 30px);
  color: #294663;
  font-size: 0.95rem;
  font-weight: 700;
}

.main-nav a {
  border-bottom: 2px solid transparent;
  padding: 8px 0;
}

.main-nav a:hover,
.main-nav a:focus-visible {
  border-color: var(--gold);
  color: var(--blue);
}

.hero {
  position: relative;
  min-height: clamp(540px, 78vh, 760px);
  display: grid;
  align-items: center;
  overflow: hidden;
  background: #17345a url("../images/banner_bg.avif") center / cover no-repeat;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(9, 28, 55, 0.86), rgba(12, 68, 104, 0.68) 50%, rgba(19, 91, 120, 0.3));
}

.hero__content {
  position: relative;
  width: min(780px, calc(100% - 36px));
  margin-left: clamp(18px, 7vw, 96px);
  padding: 72px 0 86px;
  color: #ffffff;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--gold);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

.hero h1,
.section h2 {
  margin: 0;
  line-height: 1.08;
}

.hero-title {
  max-width: 760px;
  font-size: clamp(2.45rem, 5.6vw, 4.7rem);
  font-weight: 800;
}

.hero-title span {
  display: block;
}

.hero-title__accent {
  margin-top: 12px;
  color: var(--gold);
  font-size: clamp(1.35rem, 2.7vw, 2.25rem);
  line-height: 1.18;
}

.hero__lead {
  max-width: 680px;
  margin: 24px 0 0;
  color: rgba(255, 255, 255, 0.88);
  font-size: clamp(1.12rem, 2vw, 1.45rem);
}

.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: 1px solid transparent;
  border-radius: 6px;
  padding: 12px 20px;
  font-weight: 800;
}

.button--primary {
  background: var(--gold);
  color: #17243a;
}

.button--secondary {
  border-color: rgba(255, 255, 255, 0.6);
  color: #ffffff;
}

.button:hover,
.button:focus-visible {
  transform: translateY(-1px);
}

.section {
  padding: clamp(64px, 8vw, 110px) clamp(18px, 5vw, 72px);
}

.section__inner {
  width: min(1180px, 100%);
  margin: 0 auto;
}

.section--intro {
  padding-top: 46px;
  padding-bottom: 46px;
  background: var(--soft);
  border-bottom: 1px solid var(--line);
}

.intro-grid,
.split-section,
.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(28px, 6vw, 74px);
  align-items: start;
}

.section h2 {
  font-size: clamp(2rem, 4vw, 3.35rem);
}

.section p {
  margin: 0;
  color: var(--muted);
  font-size: 1.04rem;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto 38px;
  text-align: center;
}

.section-heading--left {
  margin: 0;
  text-align: left;
}

.section-heading p:not(.eyebrow) {
  margin-top: 18px;
}

.service-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 22px;
}

.service-card {
  min-height: 280px;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #ffffff;
  box-shadow: 0 10px 26px rgba(16, 35, 63, 0.06);
}

.service-card__icon {
  display: inline-grid;
  width: 52px;
  height: 52px;
  place-items: center;
  margin-bottom: 22px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--blue), var(--cyan));
  color: #ffffff;
  font-weight: 800;
}

.service-card h3,
.skill-columns h3,
.model-list h3 {
  margin: 0 0 10px;
  color: #153457;
  font-size: 1.2rem;
  line-height: 1.25;
}

.service-card p,
.model-list p {
  font-size: 0.98rem;
}

.section--band {
  background: linear-gradient(135deg, #eff7fa 0%, #f9fbfd 48%, #fff7e8 100%);
}

.expertise-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.35fr);
  gap: clamp(30px, 6vw, 76px);
  align-items: start;
}

.skill-columns {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.skill-columns div,
.model-list article {
  border-left: 4px solid var(--gold);
  background: rgba(255, 255, 255, 0.76);
  padding: 22px;
  box-shadow: var(--shadow);
}

.skill-columns ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.skill-columns li {
  color: var(--muted);
  padding: 7px 0;
  border-bottom: 1px solid rgba(220, 231, 239, 0.78);
}

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

.model-list {
  display: grid;
  gap: 18px;
}

.section--industries {
  background: #0f2947;
  color: #ffffff;
}

.section--industries .section-heading h2,
.section--industries .industry-grid span {
  color: #ffffff;
}

.industry-grid {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 14px;
}

.industry-grid span {
  display: grid;
  min-height: 88px;
  place-items: center;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 8px;
  padding: 14px;
  background: rgba(255, 255, 255, 0.08);
  text-align: center;
  font-weight: 800;
}

.about-section {
  background: #ffffff;
}

.about-copy {
  display: grid;
  gap: 18px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  margin-top: 12px;
}

.about-stats div {
  min-height: 120px;
  padding: 22px;
  border-radius: 8px;
  background: var(--soft);
  border: 1px solid var(--line);
}

.about-stats strong {
  display: block;
  color: var(--blue);
  font-size: 1.28rem;
}

.about-stats span {
  display: block;
  margin-top: 6px;
  color: var(--muted);
}

.about-contact {
  font-weight: 800;
}

.about-contact a {
  color: var(--blue);
  border-bottom: 2px solid var(--gold);
}

.site-footer {
  padding: 30px clamp(18px, 5vw, 72px);
  background: #081b30;
  color: rgba(255, 255, 255, 0.72);
}

.site-footer__inner {
  width: min(1180px, 100%);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
}

.site-footer img {
  width: 110px;
  padding: 8px;
  border-radius: 6px;
  background: #ffffff;
}

.site-footer p {
  margin: 0;
}

@media (max-width: 980px) {
  .service-grid,
  .skill-columns,
  .industry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .intro-grid,
  .split-section,
  .about-layout,
  .expertise-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .main-nav {
    width: 100%;
    justify-content: space-between;
    gap: 8px;
    font-size: 0.88rem;
  }

  .hero {
    min-height: 590px;
  }

  .hero__content {
    margin-left: 18px;
  }

  .service-grid,
  .skill-columns,
  .industry-grid,
  .about-stats {
    grid-template-columns: 1fr;
  }

  .site-footer__inner {
    align-items: flex-start;
    flex-direction: column;
  }
}