.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(16px) saturate(1.2);
  border-bottom: 1px solid transparent;
  transition:
    background var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
}

.site-header.is-scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: 0 8px 30px rgba(10, 22, 40, 0.05);
  background: rgba(255, 255, 255, 0.92);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  width: var(--container);
  margin-inline: auto;
  gap: var(--space-4);
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--color-navy);
  text-decoration: none;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.logo:hover {
  color: var(--color-navy);
}

.logo img {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  border-radius: 10px;
  display: block;
}

.nav-toggle {
  display: none;
  width: 2.75rem;
  height: 2.75rem;
  border: 1px solid var(--color-border);
  border-radius: 12px;
  background: var(--color-white);
  cursor: pointer;
  padding: 0;
}

.nav-toggle__bar {
  display: block;
  width: 1.15rem;
  height: 2px;
  margin: 5px auto;
  background: var(--color-navy);
  border-radius: 99px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 0.15rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav__list a {
  color: var(--color-slate);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 0.55rem 0.75rem;
  border-radius: 999px;
  transition:
    background var(--transition),
    color var(--transition);
}

.site-nav__list a:hover,
.site-nav__list a[aria-current="page"] {
  color: var(--color-sky);
  background: var(--color-sky-soft);
}

.site-nav__cta {
  flex-shrink: 0;
}

@media (max-width: 960px) {
  .nav-toggle {
    display: inline-block;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-4);
    padding: var(--space-5);
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-soft);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
  }

  .site-nav__cta {
    width: 100%;
    text-align: center;
  }
}

.site-footer {
  position: relative;
  background:
    linear-gradient(160deg, #0a1628 0%, #12263f 55%, #0f2744 100%);
  color: rgba(255, 255, 255, 0.78);
  padding-block: var(--space-8) var(--space-5);
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: auto -20% -40% 40%;
  height: 320px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.25), transparent 65%);
  pointer-events: none;
}

.site-footer a {
  color: #fff;
  text-decoration: none;
}

.site-footer a:hover {
  color: #93c5fd;
}

.site-footer__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: var(--space-7);
  margin-bottom: var(--space-7);
}

.site-footer__brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: var(--space-3);
}

.site-footer h3 {
  color: #fff;
  font-size: 0.8rem;
  font-family: var(--font-body);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-4);
}

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

.site-footer li + li {
  margin-top: 0.65rem;
}

.site-footer__bottom {
  position: relative;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-4);
  font-size: var(--fs-small);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__bottom-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  justify-content: space-between;
}

.site-footer__credit {
  margin: 0;
  text-align: center;
  opacity: 0.78;
}

.site-footer__credit a {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 0.15em;
}

.site-footer__credit a:hover {
  color: #93c5fd;
}

@media (max-width: 700px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

body.is-landing .site-nav__list {
  display: none;
}

@media (max-width: 960px) {
  body.is-landing .site-nav.is-open .site-nav__list {
    display: flex;
  }
}

.sticky-cta {
  position: fixed;
  inset: auto 0 0 0;
  z-index: 90;
  display: none;
  height: var(--sticky-cta-h);
  background: rgba(10, 22, 40, 0.94);
  backdrop-filter: blur(12px);
  padding: var(--space-2) var(--space-4);
  gap: var(--space-3);
  align-items: center;
  justify-content: center;
  transform: translateY(110%);
  transition: transform var(--transition);
}

.sticky-cta.is-visible {
  display: flex;
  transform: translateY(0);
}

.sticky-cta a {
  flex: 1;
  max-width: 220px;
  text-align: center;
}

@media (min-width: 961px) {
  .sticky-cta {
    display: none !important;
  }
}

body.has-sticky-cta {
  padding-bottom: var(--sticky-cta-h);
}