/* Site header / nav — fixed bar over the hero, compacts and gains a
   blurred background once site.js adds .is-scrolled past 40px. */

.site-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 90;
  width: 0;
  height: 2px;
  background: var(--theme-color-primary);
  transition: width 0.1s linear;
}

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 80;
  padding: 26px 0;
  transition: 0.4s ease;
}

.site-header.is-scrolled {
  padding: 15px 0;
  background: color-mix(in srgb, var(--theme-color-background) 90%, transparent);
  box-shadow: 0 1px 0 var(--theme-color-border-soft);
  backdrop-filter: blur(12px);
}

.site-header__wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: var(--theme-layout-maxw);
  margin: 0 auto;
  padding-inline: var(--theme-layout-gutter);
}

.site-header__logo {
  display: inline-flex;
  align-items: center;
}

.site-header__logo img {
  display: block;
  height: 38px;
  width: auto;
  transition: height 0.4s ease;
}

.site-header.is-scrolled .site-header__logo img {
  height: 32px;
}

.site-header__nav {
  display: flex;
}

.site-header__menu {
  display: flex;
  gap: 30px;
  list-style: none;
}

.site-header__menu a {
  position: relative;
  font-family: var(--theme-font-body);
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--theme-color-text-muted);
  text-decoration: none;
  transition: color 0.2s;
}

.site-header__menu a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 1px;
  background: var(--theme-color-primary);
  transition: width 0.3s;
}

.site-header__menu a:hover {
  color: var(--theme-color-text);
}

.site-header__menu a:hover::after {
  width: 100%;
}

.site-header__cta {
  font-family: var(--theme-font-body);
  font-weight: 700;
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--theme-color-text);
  text-decoration: none;
  border: 1.5px solid var(--theme-color-border);
  border-radius: var(--theme-radius-xs);
  padding: 10px 18px;
  transition: 0.25s;
}

.site-header__cta:hover {
  border-color: var(--theme-color-primary);
  color: var(--theme-color-primary);
}

@media (max-width: 860px) {
  .site-header__nav {
    display: none;
  }
}