.site-header {
  position: absolute;
  inset: 0 0 auto;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.16);
}

.nav-wrap {
  min-height: 88px;
  display: flex;
  align-items: center;
  gap: 34px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-right: auto;
}

.brand-mark {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 13px 13px 13px 4px;
  background: linear-gradient(145deg, var(--cyan), var(--water));
  color: var(--navy);
  font: 800 1.45rem/1 "Manrope", sans-serif;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  line-height: 1;
  color: var(--white);
}

.brand-copy strong {
  font-family: "Manrope", sans-serif;
  font-size: 0.96rem;
  letter-spacing: 0.07em;
}

.brand-copy small {
  margin-top: 6px;
  font-size: 0.67rem;
  letter-spacing: 0.28em;
  opacity: 0.78;
}

.main-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.main-nav a {
  position: relative;
  color: rgba(255,255,255,0.82);
  font-size: 0.9rem;
  font-weight: 600;
}

.main-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -10px;
  width: 0;
  height: 2px;
  background: var(--cyan);
  transition: width 0.25s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--white);
}

.main-nav a:hover::after,
.main-nav a.active::after {
  width: 100%;
}

.nav-cta {
  min-height: 42px;
  padding: 0 18px;
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  background: var(--white);
  color: var(--navy);
  font-size: 0.84rem;
  font-weight: 800;
}

.nav-toggle,
.nav-toggle-label {
  display: none;
}

@media (max-width: 980px) {
  .nav-cta {
    display: none;
  }

  .nav-toggle-label {
    width: 44px;
    height: 44px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    cursor: pointer;
  }

  .nav-toggle-label span {
    width: 26px;
    height: 2px;
    background: var(--white);
    transition: 0.25s ease;
  }

  .main-nav {
    position: absolute;
    top: 88px;
    left: 0;
    width: 100%;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 12px 20px 22px;
    background: rgba(6,45,70,0.97);
    border-top: 1px solid rgba(255,255,255,0.12);
  }

  .main-nav a {
    padding: 14px 4px;
  }

  .main-nav a::after {
    display: none;
  }

  .nav-toggle:checked ~ .main-nav {
    display: flex;
  }

  .nav-toggle:checked + .nav-toggle-label span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .nav-toggle:checked + .nav-toggle-label span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle:checked + .nav-toggle-label span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }
}