:root {
  --navy: #17213c;
  --blue: #4666e5;
  --blue-dark: #334fca;
  --lavender: #eef0ff;
  --pink: #ec6f95;
  --text: #27314d;
  --muted: #6f7891;
  --line: #e5e8f2;
  --surface: #ffffff;
  --background: #f7f8fc;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--background);
  color: var(--text);
  font-family: Inter, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.7;
}

a {
  color: var(--blue-dark);
  text-underline-offset: 3px;
}

a:hover {
  color: var(--pink);
}

.shell {
  width: min(1120px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(255, 255, 255, 0.94);
  border-bottom: 1px solid rgba(229, 232, 242, 0.9);
  backdrop-filter: blur(14px);
}

.nav {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  color: var(--navy);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  text-decoration: none;
  white-space: nowrap;
}

.brand-logo {
  height: 38px;
  display: block;
  object-fit: contain;
}

.footer-main.shell .brand-logo {
  height: 150px;
}

.nav-links {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 24px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  color: #5c657d;
  font-size: 0.88rem;
  font-weight: 650;
  text-decoration: none;
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--blue);
}

.hero {
  position: relative;
  overflow: hidden;
  min-height: 390px;
  display: grid;
  align-items: center;
  background: linear-gradient(120deg, #f0f1ff 0%, #f9f2fa 100%);
}

.hero::before {
  position: absolute;
  inset: auto auto -180px -130px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: rgba(236, 111, 149, 0.1);
  content: "";
}

.hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(300px, 0.85fr);
  align-items: center;
  gap: 60px;
  padding-block: 62px;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--pink);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.hero h1 {
  max-width: 650px;
  margin: 0;
  color: var(--navy);
  font-size: clamp(2.35rem, 5vw, 4.25rem);
  line-height: 1.06;
  letter-spacing: -0.045em;
}

.lead {
  max-width: 570px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 1.08rem;
}

.meta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 24px 0 0;
  padding: 8px 13px;
  color: #566078;
  font-size: 0.82rem;
  border: 1px solid rgba(70, 102, 229, 0.15);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.72);
}

.meta::before {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--blue);
  content: "";
}

.hero-image {
  width: 100%;
  max-width: 420px;
  justify-self: end;
  filter: drop-shadow(0 24px 30px rgba(46, 57, 104, 0.14));
}

main {
  padding-block: 64px 80px;
}

.content-layout {
  width: 100%;
}

.card {
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--surface);
  box-shadow: 0 18px 50px rgba(32, 43, 84, 0.06);
}

.card>h2 {
  margin: 0 0 32px;
  padding-bottom: 20px;
  color: var(--navy);
  font-size: 1.15rem;
  border-bottom: 1px solid var(--line);
}

section {
  margin-bottom: 34px;
}

section:last-of-type {
  margin-bottom: 0;
}

h3 {
  margin: 0 0 12px;
  color: var(--navy);
  font-size: 1.18rem;
  line-height: 1.35;
}

h4 {
  margin: 24px 0 8px;
  color: var(--navy);
  font-size: 1rem;
}

p {
  margin: 0 0 14px;
}

ul,
ol {
  margin: 10px 0 0;
  padding-left: 22px;
}

li {
  margin-bottom: 9px;
  padding-left: 4px;
}

li::marker {
  color: var(--blue);
}

.code {
  padding: 2px 7px;
  font-family: Consolas, monospace;
  border-radius: 6px;
  background: var(--lavender);
}

.updated {
  margin: 36px 0 0;
  padding-top: 20px;
  color: var(--muted);
  font-size: 0.82rem;
  border-top: 1px solid var(--line);
}

.site-footer {
  color: #c7cce0;
  background: var(--navy);
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 56px;
  padding-block: 54px;
}

.site-footer .brand {
  margin-bottom: 14px;
  color: white;
}

.footer-copy {
  max-width: 390px;
  margin: 0;
  color: #aeb5cc;
  font-size: 0.9rem;
}

.footer-column h2 {
  margin: 4px 0 16px;
  color: white;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

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

.footer-links li {
  margin: 0 0 9px;
  padding: 0;
}

.footer-links a {
  color: #b6bdd2;
  font-size: 0.88rem;
  text-decoration: none;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  padding-block: 20px;
  color: #929bb9;
  font-size: 0.78rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

@media (max-width: 860px) {
  .nav {
    min-height: auto;
    padding-block: 16px;
    align-items: flex-start;
    flex-direction: column;
    gap: 13px;
  }

  .nav-links {
    width: 100%;
    justify-content: flex-start;
    gap: 15px;
    overflow-x: auto;
    padding-bottom: 3px;
  }

  .nav-links a {
    white-space: nowrap;
  }

  .hero-inner {
    grid-template-columns: 1fr 280px;
    gap: 28px;
  }

}

@media (max-width: 650px) {
  .shell {
    width: min(100% - 28px, 1120px);
  }

  .hero-inner {
    grid-template-columns: 1fr;
    padding-block: 44px;
  }

  .hero-image {
    max-width: 280px;
    justify-self: center;
  }

  main {
    padding-block: 34px 48px;
  }

  .card {
    padding: 26px 20px;
    border-radius: 18px;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-block: 40px;
  }

  .footer-bottom {
    flex-direction: column;
  }
}