:root {
  --ink: #172033;
  --muted: #5d687c;
  --line: #dbe2ee;
  --paper: #ffffff;
  --wash: #f5f8fc;
  --brand: #3157d5;
  --brand-dark: #243fa4;
  --accent: #e9efff;
  --success: #0d775b;
  --shadow: 0 18px 45px rgba(27, 45, 83, 0.1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--wash);
  color: var(--ink);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.65;
}

a {
  color: var(--brand-dark);
}

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

a:focus-visible {
  outline: 3px solid #f0b429;
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  left: 1rem;
  top: -4rem;
  z-index: 10;
  padding: 0.65rem 0.9rem;
  border-radius: 0.55rem;
  background: var(--ink);
  color: #fff;
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
}

.nav-wrap,
.content-wrap,
.hero-wrap,
.site-footer {
  width: min(100% - 2rem, 1100px);
  margin: 0 auto;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 4.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--ink);
  font-size: 1.12rem;
  font-weight: 750;
  letter-spacing: -0.02em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2rem;
  height: 2rem;
  place-items: center;
  border-radius: 0.65rem;
  background: var(--brand);
  color: #fff;
  font-size: 0.88rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.1rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 650;
  text-decoration: none;
}

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

.hero {
  padding: 5.5rem 0 4.5rem;
  background:
    radial-gradient(circle at 80% 20%, rgba(88, 126, 238, 0.23), transparent 31rem),
    linear-gradient(135deg, #eff4ff 0%, #f8fbff 58%, #eef8f6 100%);
}

.hero-wrap {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(260px, 0.8fr);
  align-items: center;
  gap: 4rem;
}

.eyebrow {
  margin: 0 0 0.85rem;
  color: var(--brand-dark);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  margin: 0;
  color: var(--ink);
  line-height: 1.2;
  letter-spacing: -0.035em;
}

h1 {
  max-width: 680px;
  font-size: clamp(2.45rem, 6vw, 4.65rem);
}

h2 {
  font-size: clamp(1.65rem, 3vw, 2.3rem);
}

h3 {
  font-size: 1.15rem;
}

.hero-copy {
  max-width: 650px;
  margin: 1.35rem 0 0;
  color: var(--muted);
  font-size: 1.15rem;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 2rem;
}

.button {
  display: inline-block;
  padding: 0.75rem 1.15rem;
  border: 1px solid var(--brand);
  border-radius: 0.65rem;
  background: var(--brand);
  color: #fff;
  font-weight: 750;
  text-decoration: none;
}

.button:hover {
  border-color: var(--brand-dark);
  background: var(--brand-dark);
  color: #fff;
}

.button.secondary {
  border-color: var(--line);
  background: #fff;
  color: var(--brand-dark);
}

.hero-card {
  padding: 1.6rem;
  border: 1px solid rgba(49, 87, 213, 0.14);
  border-radius: 1.2rem;
  background: rgba(255, 255, 255, 0.82);
  box-shadow: var(--shadow);
}

.hero-card h2 {
  font-size: 1.25rem;
}

.hero-card ul {
  margin: 1rem 0 0;
  padding-left: 1.25rem;
  color: var(--muted);
}

.section {
  padding: 4.5rem 0;
}

.section-heading {
  max-width: 680px;
  margin-bottom: 2rem;
}

.section-heading p {
  margin: 0.9rem 0 0;
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

.feature-card,
.article,
.contact-card {
  border: 1px solid var(--line);
  border-radius: 1rem;
  background: var(--paper);
}

.feature-card {
  padding: 1.45rem;
}

.feature-card p {
  margin: 0.7rem 0 0;
  color: var(--muted);
}

.article {
  max-width: 820px;
  margin: 2.5rem auto 4.5rem;
  padding: clamp(1.3rem, 4vw, 3rem);
  box-shadow: 0 8px 28px rgba(27, 45, 83, 0.04);
}

.article-header {
  padding-bottom: 1.4rem;
  border-bottom: 1px solid var(--line);
}

.article-header p {
  margin: 0.8rem 0 0;
  color: var(--muted);
}

.article section {
  margin-top: 2.2rem;
}

.article p,
.article li {
  color: #3f4b60;
}

.article ul,
.article ol {
  padding-left: 1.35rem;
}

.article li + li {
  margin-top: 0.55rem;
}

.notice {
  margin: 1.4rem 0;
  padding: 1rem 1.1rem;
  border-left: 4px solid var(--brand);
  border-radius: 0.35rem;
  background: var(--accent);
  color: #293a70;
}

.notice p {
  margin: 0;
  color: inherit;
}

.support-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-top: 2rem;
}

.contact-card {
  padding: 1.35rem;
}

.contact-card h2 {
  font-size: 1.3rem;
}

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

.contact-card a {
  font-weight: 750;
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1rem;
  padding: 2rem 0 2.8rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer p {
  margin: 0;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

@media (max-width: 760px) {
  .nav-wrap {
    align-items: flex-start;
    flex-direction: column;
    padding: 1rem 0;
  }

  .hero {
    padding: 4rem 0 3.5rem;
  }

  .hero-wrap,
  .feature-grid,
  .support-grid {
    grid-template-columns: 1fr;
  }

  .hero-wrap {
    gap: 2.5rem;
  }

  .section {
    padding: 3.5rem 0;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}