/* ============================================
   NAV
   ============================================ */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  backdrop-filter: blur(0px);
  -webkit-backdrop-filter: blur(0px);
  border-bottom: 1px solid transparent;
  transition: background .4s var(--ease-out), border-color .4s, box-shadow .4s, padding .3s, backdrop-filter .4s;
}

.nav.is-scrolled {
  padding-top: 14px;
  padding-bottom: 14px;
  background: rgba(250, 251, 252, 0.86);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--grey-200);
  box-shadow: 0 12px 30px -20px rgba(11, 27, 58, 0.25);
}

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

.nav__brand img {
  height: 34px;
  width: auto;
}

.nav__brand span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: -0.02em;
  color: var(--navy-900);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__links a {
  position: relative;
  font-size: 14.5px;
  font-weight: 500;
  color: var(--navy-700);
  padding: 4px 0;
}

.nav__links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  border-radius: 2px;
  background: var(--violet-500);
  transition: width .3s var(--ease-out);
}

.nav__links a:hover::after { width: 100%; }

.nav__actions {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}

.nav__toggle span {
  width: 22px;
  height: 2px;
  background: var(--navy-900);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

@media (max-width: 860px) {
  .nav__links { display: none; }
  .nav__toggle { display: flex; }
  .nav__actions .btn-ghost { display: none; }

  .nav__links.is-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 24px var(--gutter) 32px;
    gap: 20px;
    border-bottom: 1px solid var(--grey-200);
  }
}