/* Header: logo left, links centred, quote CTA right */

.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: var(--header-h);
  padding: 0 var(--edge);
}

.brand {
  justify-self: start;
  display: block;
}

.brand__logo {
  width: 152px;
  height: auto;
}

.nav__list {
  display: flex;
  gap: clamp(20px, 2.4vw, 36px);
}

.nav__list a {
  position: relative;
  display: block;
  padding: 6px 0;
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--on-dark-muted);
  transition: color 0.3s ease;
}

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

.nav__list a::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.45s var(--ease-out);
}

.nav__list a:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.header__actions {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 12px;
}

.menu-toggle {
  display: none;
  height: 42px;
  padding: 0 20px;
  border: 1px solid var(--on-dark-line);
  border-radius: 999px;
  background: rgba(36, 37, 40, 0.45);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
}

.menu-toggle__close,
.menu-open .menu-toggle__open {
  display: none;
}

.menu-open .menu-toggle__close {
  display: inline;
}

/* Entrance: header items settle in after the logo lands */
.js .nav__list li,
.js .header__actions {
  transition:
    opacity 1.1s var(--ease-out),
    transform 1.1s var(--ease-out);
  transition-delay: calc(var(--i, 5) * 80ms + 300ms);
}

.js:not(.is-ready) .nav__list li,
.js:not(.is-ready) .header__actions {
  opacity: 0;
  transform: translateY(-10px);
}

/* Full-screen menu for narrow screens */
.menu {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: calc(var(--header-h) + 24px) var(--gutter) 32px;
  background: var(--surface);
}

.menu[hidden] {
  display: none;
}

.menu__list a {
  display: block;
  padding: 6px 0;
  font-size: clamp(36px, 10vw, 56px);
  font-weight: 500;
  letter-spacing: -0.04em;
  line-height: 1.1;
  text-decoration: none;
  color: var(--on-dark-muted);
}

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

.menu__foot {
  font-size: 14px;
  color: var(--grey);
}

.menu-open {
  overflow: hidden;
}

.menu-open .site-header {
  position: fixed;
}

@media (max-width: 960px) {
  :root {
    --header-h: 80px;
  }

  .site-header {
    grid-template-columns: 1fr auto;
  }

  .nav {
    display: none;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
  }

  .brand__logo {
    width: 128px;
  }
}

@media (max-width: 480px) {
  .header__actions .btn {
    display: none;
  }
}