:root {
  --bg: #ffffff;
  --surface: #f5f7fa;
  --surface-2: #e9eef4;
  --text: #242830;
  --muted: #687385;
  --line: #dce3eb;
  --brand: #15808f;
  --brand-dark: #0f5864;
  --accent: #d8544d;
  --ink: #182028;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.55;
}

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

.topbar {
  background: var(--ink);
  color: #d9e2ea;
  font-size: 14px;
}

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.topbar .container,
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.topbar ul,
.nav,
.service-list,
.footer-list {
  padding: 0;
  margin: 0;
  list-style: none;
}

.topbar ul {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  padding: 9px 0;
}

.navbar {
  position: sticky;
  top: 0;
  z-index: 2;
  background: rgba(255, 255, 255, 0.96);
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 18px 0;
  font-size: 25px;
  font-weight: 800;
  letter-spacing: 0;
}

.brand-mark {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  border-radius: 6px;
  background: var(--brand);
  color: #fff;
  font-weight: 800;
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  font-size: 15px;
  font-weight: 700;
}

.nav a {
  display: block;
  padding: 22px 13px;
  color: #374151;
}

.nav a:hover,
.nav a:focus {
  color: var(--brand-dark);
  outline: none;
}

.hero {
  color: #fff;
  background:
    linear-gradient(90deg, rgba(20, 34, 45, 0.88), rgba(20, 34, 45, 0.36)),
    linear-gradient(135deg, #174d59 0%, #298b8d 42%, #d76557 100%);
}

.hero-inner {
  min-height: 430px;
  display: grid;
  align-items: center;
  padding: 64px 0;
}

.hero h1 {
  max-width: 700px;
  margin: 0 0 16px;
  font-size: clamp(34px, 6vw, 62px);
  line-height: 1.05;
  letter-spacing: 0;
}

.hero p {
  max-width: 570px;
  margin: 0;
  color: #e8f0f3;
  font-size: 19px;
}

section {
  padding: 64px 0;
}

.section-head {
  max-width: 760px;
  margin-bottom: 34px;
}

.section-head h2 {
  margin: 0 0 10px;
  color: var(--text);
  font-size: clamp(28px, 4vw, 38px);
  line-height: 1.15;
  letter-spacing: 0;
}

.section-head p {
  margin: 0;
  color: var(--muted);
  font-size: 17px;
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 36px;
  align-items: center;
}

.visual {
  min-height: 310px;
  border-radius: 8px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(21, 128, 143, 0.18), rgba(216, 84, 77, 0.24)),
    linear-gradient(45deg, #eaf0f5 25%, transparent 25%),
    linear-gradient(-45deg, #eaf0f5 25%, transparent 25%),
    #f8fafc;
  background-size: auto, 34px 34px, 34px 34px, auto;
}

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

.card {
  min-height: 190px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
}

.card h3 {
  margin: 0 0 8px;
  color: var(--brand-dark);
  font-size: 21px;
  letter-spacing: 0;
}

.card p {
  margin: 0;
  color: var(--muted);
}

.service-band {
  background: var(--surface);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.service-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 20px;
}

.service-list li {
  padding: 10px 0 10px 22px;
  border-bottom: 1px solid var(--line);
  color: #344054;
}

.service-list li::before {
  content: "";
  display: inline-block;
  width: 8px;
  height: 8px;
  margin: 0 10px 1px -22px;
  border-radius: 50%;
  background: var(--accent);
}

.quote {
  padding: 28px;
  border-left: 4px solid var(--brand);
  background: var(--surface);
  color: #384250;
  font-size: 18px;
}

.quote strong {
  display: block;
  margin-top: 14px;
  color: var(--text);
  font-size: 15px;
}

footer {
  background: var(--ink);
  color: #d8e0e8;
}

footer .container {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 26px;
  padding: 44px 0;
}

footer h3 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 18px;
  letter-spacing: 0;
}

footer p,
footer li {
  margin: 0 0 8px;
  color: #aebccc;
  font-size: 14px;
}

.copyright {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 16px 0;
  color: #99a8b7;
  font-size: 13px;
  text-align: center;
}

@media (max-width: 820px) {
  .topbar .container,
  .navbar .container,
  .split {
    display: block;
  }

  .nav {
    padding-bottom: 14px;
  }

  .nav a {
    padding: 8px 10px 8px 0;
  }

  .columns,
  .service-list,
  footer .container {
    grid-template-columns: 1fr;
  }

  .visual {
    margin-bottom: 26px;
  }
}