/* =====================================================================
   Global site header + mobile drawer
   Shared by every page — keep this file as the single source of truth.
   ===================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  padding: 0 2.5rem;                 /* matches .padding-global */
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}
.site-header.is-scrolled,
.site-header--solid {
  background-color: #181818;
  border-bottom-color: rgba(255, 255, 255, 0.14);
}
.site-header.is-open {
  background-color: #181818;
}
/* pages with no dark hero opt into the solid header from the start */
.site-header--solid { transition: none; }
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  max-width: 80rem;                  /* matches .container-large */
  margin: 0 auto;
  padding: 1.05rem 0;
}
.site-header__logo {
  display: flex;
  align-items: center;
  flex: none;
  line-height: 0;
}
.site-header__logo img {
  width: 140px;
  height: auto;
}
.site-header__nav {
  display: flex;
  align-items: center;
  gap: 34px;
}
.site-header__link {
  position: relative;
  color: #fff;
  font-family: Inter, sans-serif;
  font-weight: 400;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  padding-bottom: 3px;
  white-space: nowrap;
}
.site-header__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s ease;
}
.site-header__link:hover::after,
.site-header__link:focus-visible::after {
  transform: scaleX(1);
}
.site-header__burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
}
.site-header__burger span {
  display: block;
  width: 22px;
  height: 1px;
  margin: 0 auto;
  background-color: #fff;
  transition: transform 0.3s ease, opacity 0.2s ease;
}
.site-header.is-open .site-header__burger span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}
.site-header.is-open .site-header__burger span:nth-child(2) {
  opacity: 0;
}
.site-header.is-open .site-header__burger span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Full-screen mobile drawer */
.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 999;
  background-color: #181818;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(-100%);
  visibility: hidden;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0.45s;
}
.mobile-drawer.is-open {
  transform: translateY(0);
  visibility: visible;
  transition: transform 0.45s cubic-bezier(0.4, 0, 0.2, 1), visibility 0s linear 0s;
}
.mobile-drawer__nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  opacity: 0;
  transition: opacity 0.3s ease 0.15s;
}
.mobile-drawer.is-open .mobile-drawer__nav {
  opacity: 1;
}
.mobile-drawer__link {
  font-family: Marlidedisplay, Arial, sans-serif;
  font-weight: 400;
  font-synthesis: none;
  font-size: 2.25rem;
  line-height: 1;
  color: #fff;
  text-decoration: none;
  transition: opacity 0.2s ease;
}
.mobile-drawer__link:hover {
  opacity: 0.65;
}
html.nav-open,
body.nav-open {
  overflow: hidden;
}

/* keep in-page anchor targets clear of the fixed header */
[id] {
  scroll-margin-top: 88px;
}

@media screen and (max-width: 767px) {
  .site-header {
    padding: 0 1.25rem;             /* matches .padding-global on mobile */
  }
  .site-header__inner {
    position: relative;
    justify-content: center;
    padding: 0.9rem 0;
  }
  .site-header__nav {
    display: none;
  }
  .site-header__burger {
    display: flex;
    position: absolute;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
  }
  .site-header__logo img {
    width: 150px;
  }
  .mobile-drawer__link {
    font-size: 2rem;
  }

  /* Pages whose hero already shows the Key Women logo (home, sponsorship):
     keep the header logo hidden until the user scrolls (or opens the
     drawer). Every other page shows the header logo straight away. */
  .site-header__logo {
    transition: opacity 0.3s ease;
  }
  .is-home .site-header:not(.is-scrolled):not(.is-open) .site-header__logo,
  .hero-has-logo .site-header:not(.is-scrolled):not(.is-open) .site-header__logo {
    opacity: 0;
    pointer-events: none;
  }
}