:root {
  --dark: #1f4661;
  --text: #1f425c;
  --muted: #6f8090;
  --light: #f3f5f7;
  --primary: #18c7ec;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Inter", Arial, sans-serif;
  color: var(--text);
  background: #fff;
}

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

.container {
  width: min(1140px, calc(100% - 56px));
  margin: 0 auto;
}

.topbar {
  background: #fff;
  border-bottom: 1px solid #e8edf2;
  position: sticky;
  top: 0;
  z-index: 20;
}

.nav-wrap {
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  color: #19bacf;
  font-weight: 700;
  font-size: 14px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
  color: #6d7d8c;
  font-size: 18px;
}

.main-nav a {
  padding: 23px 0 19px;
  border-bottom: 2px solid transparent;
}

.main-nav a.active {
  border-bottom-color: var(--primary);
  color: #203d55;
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-actions .nav-login {
  min-width: auto;
  padding: 0 18px;
  border: 1px solid #dce4ea;
  color: var(--text);
}

.btn {
  height: 44px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0 28px;
  font-weight: 600;
  font-size: 15px;
}

.btn-primary {
  background: var(--primary);
  color: #174b64;
}

.btn-small {
  height: 40px;
  font-size: 14px;
}

.btn-ghost {
  min-width: 170px;
  background: #fff;
}

.section-dark {
  background: var(--dark);
  color: #fff;
}

.section-soft {
  background: var(--light);
}

.section-white {
  background: #fff;
}

.hero-vision {
  padding: 84px 0 92px;
}

.hero-home {
  background-image: linear-gradient(rgba(23, 58, 82, 0.78), rgba(23, 58, 82, 0.78)),
    url("https://images.unsplash.com/photo-1534723328310-e82dad3ee43f?auto=format&fit=crop&w=1920&q=80");
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: 92px 0 86px;
}

.hero-home-content {
  max-width: 760px;
}

.hero-home-content p {
  margin: 0 0 26px;
  font-size: 37px;
  color: rgba(255, 255, 255, 0.94);
}

.hero-home-actions {
  display: flex;
  gap: 14px;
}

.hero-center {
  text-align: center;
}

h1 {
  margin: 0 0 16px;
  font-size: 68px;
  line-height: 1.1;
  letter-spacing: -0.8px;
}

.hero-center p {
  margin: 0 0 28px;
  font-size: 39px;
  line-height: 1.4;
  color: rgba(255, 255, 255, 0.92);
}

.intro {
  padding: 74px 0 80px;
}

.intro-home {
  max-width: 900px;
}

.intro-home blockquote {
  margin: 30px auto 22px;
  color: var(--muted);
  font-size: 38px;
  font-style: italic;
  line-height: 1.45;
  max-width: 760px;
  position: relative;
}

.intro-home blockquote::before {
  content: "";
  position: absolute;
  left: -38px;
  top: 2px;
  width: 4px;
  height: 70px;
  background: var(--primary);
}

.section-heading {
  text-align: center;
}

h2 {
  margin: 0 0 16px;
  font-size: 57px;
  line-height: 1.15;
  letter-spacing: -0.8px;
}

.section-heading p {
  margin: 0 auto;
  max-width: 900px;
  color: var(--muted);
  font-size: 38px;
  line-height: 1.45;
}

.top-grid {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 24px;
}

.mini-card {
  background: #fff;
  border: 1px solid #e4e9ee;
  border-radius: 14px;
  box-shadow: 0 3px 10px rgba(26, 46, 64, 0.06);
  padding: 24px 24px 20px;
}

h3 {
  margin: 0 0 10px;
  font-size: 44px;
  line-height: 1.2;
  color: #203f57;
}

.mini-card p {
  margin: 0;
  font-size: 34px;
  line-height: 1.45;
  color: var(--muted);
}

.mini-card a {
  display: inline-block;
  margin-top: 12px;
  color: var(--primary);
  font-size: 28px;
  font-weight: 600;
}

.resources,
.cases {
  padding: 82px 0;
}

.dual-cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 36px;
}

.dual-cols ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.dual-cols li {
  font-size: 32px;
  line-height: 1.45;
  color: var(--muted);
  margin-bottom: 14px;
  position: relative;
  padding-left: 34px;
}

.list-x li::before,
.list-check li::before {
  position: absolute;
  left: 0;
  top: 0;
}

.list-x li::before {
  content: "x";
  color: #ea7d7d;
}

.list-check li::before {
  content: "✓";
  color: #32d4c2;
}

.resource-grid {
  margin-top: 52px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px 34px;
}

.feature-card {
  padding: 8px 0;
}

.feature-card.featured {
  background: #fff;
  border: 1px solid #e3e8ed;
  border-radius: 14px;
  box-shadow: 0 3px 12px rgba(30, 53, 74, 0.06);
  padding: 24px;
}

.icon-box {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: #dff4f8;
  color: #37c8df;
  margin-bottom: 18px;
  font-size: 24px;
}

.feature-card p {
  margin: 0;
  color: var(--muted);
  font-size: 32px;
  line-height: 1.45;
}

.use-grid {
  margin-top: 46px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px 22px;
}

.use-grid div {
  background: #f2f4f7;
  border-radius: 8px;
  min-height: 52px;
  display: flex;
  align-items: center;
  padding: 0 16px;
  color: #2c485f;
  font-size: 34px;
  font-weight: 500;
}

.dif-list {
  margin-top: 48px;
  max-width: 980px;
}

.dif-list article {
  display: grid;
  grid-template-columns: 88px 1fr;
  align-items: start;
  gap: 14px;
  margin-bottom: 34px;
}

.dif-list span {
  color: #c5f0f6;
  font-size: 64px;
  font-weight: 700;
  line-height: 1;
}

.dif-list p {
  margin: 0;
  color: var(--muted);
  font-size: 32px;
  line-height: 1.45;
}

.logo-grid {
  margin-top: 44px;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
}

.logo-card {
  background: #fff;
  border: 1px solid #e3e8ed;
  border-radius: 12px;
  min-height: 86px;
  display: grid;
  place-items: center;
  color: #304b62;
  font-size: 28px;
  font-weight: 600;
  text-align: center;
  padding: 12px;
}

.cta {
  padding: 66px 0 70px;
}

.cta-content {
  text-align: center;
}

.cta-content h2 {
  color: #fff;
}

.cta-content p {
  margin: 0 auto 28px;
  color: rgba(255, 255, 255, 0.92);
  font-size: 40px;
  line-height: 1.45;
}

.footer {
  padding-top: 56px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1.15fr 1fr;
  gap: 24px;
  padding-bottom: 42px;
}

.footer-logo {
  width: 46px;
  height: 26px;
  border-radius: 2px;
  background: #fff;
  margin-bottom: 14px;
}

.footer h4 {
  margin: 0 0 14px;
  color: #fff;
  font-size: 30px;
}

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

.footer p,
.footer li,
.footer a {
  color: rgba(255, 255, 255, 0.84);
  font-size: 34px;
  line-height: 1.5;
}

.socials {
  display: flex;
  gap: 18px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 0 30px;
}

.footer-bottom a + a {
  margin-left: 20px;
}

@media (max-width: 1100px) {
  .main-nav {
    gap: 16px;
  }

  h1 {
    font-size: clamp(36px, 5vw, 60px);
  }

  h2 {
    font-size: clamp(30px, 4vw, 52px);
  }

  h3 {
    font-size: clamp(22px, 3vw, 34px);
  }

  .hero-center p,
  .section-heading p,
  .mini-card p,
  .feature-card p,
  .use-grid div,
  .cta-content p,
  .footer p,
  .footer li,
  .footer a {
    font-size: clamp(16px, 2vw, 24px);
  }
}

@media (max-width: 860px) {
  .nav-wrap {
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px 18px;
    padding: 10px 0;
  }

  .top-grid,
  .resource-grid,
  .use-grid,
  .footer-grid,
  .dual-cols,
  .logo-grid {
    grid-template-columns: 1fr;
  }

  .hero-vision,
  .hero-home,
  .intro,
  .resources,
  .cases,
  .cta {
    padding: 56px 0;
  }

  .hero-home-actions {
    flex-direction: column;
    align-items: flex-start;
  }
}