/* ==========================================================================
   Site header – zweeft (position: absolute) over de hero / titelbalk.
   Opbouw: topbalk (e-mail + telefoon) en daaronder de hoofdrij (logo + menu).
   De titelbalk reserveert bovenin ruimte via --site-header-h.
   ========================================================================== */

:root {
  --site-topbar-h: 40px;
  --site-nav-h: 80px;
  --site-header-h: calc(var(--site-topbar-h) + var(--site-nav-h));
  --site-header-border: rgba(223, 229, 255, .14);
  --site-header-max: 1280px;
  --site-header-pad: clamp(20px, 5vw, 64px);
}

.site-header {
  position: absolute;
  inset: 0 0 auto 0;
  z-index: 10;
  color: var(--hero-text);
  font-family: var(--hero-font);
}

.site-header__row {
  max-width: var(--site-header-max);
  margin: 0 auto;
  padding: 0 var(--site-header-pad);
  display: flex;
  align-items: center;
}

/* --- Topbalk ------------------------------------------------------------ */
/* Onderrand als pseudo-element, zodat de intro hem van links naar rechts kan "tekenen"
   via --topbar-line (0 → 1). Zonder JS staat hij gewoon volledig. */
.site-topbar {
  position: relative;
}
.site-topbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 1px;
  background: var(--site-header-border);
  transform: scaleX(var(--topbar-line, 1));
  transform-origin: left center;
}
.site-topbar .site-header__row {
  height: var(--site-topbar-h);
  gap: 1.75rem;
  font-size: .8125rem;
}
.site-topbar a {
  display: inline-flex;
  align-items: center;
  gap: .5em;
  color: var(--hero-muted);
  text-decoration: none;
  transition: color .2s;
}
.site-topbar a:hover,
.site-topbar a:focus-visible { color: var(--hero-text); }
.site-topbar svg { width: 14px; height: 14px; flex: none; }

/* --- Hoofdrij ----------------------------------------------------------- */
.site-nav .site-header__row {
  height: var(--site-nav-h);
  justify-content: space-between;
  gap: 2rem;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  color: var(--hero-text);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.0625rem;
  letter-spacing: -.01em;
}
.site-logo img { width: 44px; height: 44px; display: block; }

.site-menu {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.4vw, 2.25rem);
  margin: 0;
  padding: 0;
  list-style: none;
}
.site-menu a {
  color: var(--hero-text);
  text-decoration: none;
  font-size: .9375rem;
  opacity: .85;
  transition: opacity .2s;
}
.site-menu a:hover,
.site-menu a:focus-visible,
.site-menu a[aria-current="page"] { opacity: 1; }

/* Vierkante CTA-knop, geen afgeronde hoeken */
.site-menu .site-cta {
  display: inline-block;
  padding: .85em 1.35em;
  border-radius: 0;
  background: var(--hero-accent);
  color: #fff;
  font-weight: 700;
  opacity: 1;
  transition: background-color .2s;
}
.site-menu .site-cta:hover,
.site-menu .site-cta:focus-visible { background: #3552f0; }

/* Hamburger – alleen zichtbaar op kleine schermen */
.site-menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--site-header-border);
  border-radius: 0;
  background: transparent;
  color: var(--hero-text);
  cursor: pointer;
}
.site-menu-toggle span,
.site-menu-toggle span::before,
.site-menu-toggle span::after {
  display: block;
  width: 18px;
  height: 1.5px;
  margin: 0 auto;
  background: currentColor;
  position: relative;
  transition: transform .2s, background-color .2s;
}
.site-menu-toggle span::before,
.site-menu-toggle span::after { content: ""; position: absolute; left: 0; }
.site-menu-toggle span::before { top: -6px; }
.site-menu-toggle span::after { top: 6px; }
.site-menu-toggle[aria-expanded="true"] span { background: transparent; }
.site-menu-toggle[aria-expanded="true"] span::before { transform: translateY(6px) rotate(45deg); }
.site-menu-toggle[aria-expanded="true"] span::after { transform: translateY(-6px) rotate(-45deg); }

@media (max-width: 900px) {
  :root { --site-nav-h: 68px; }
  .site-logo span { display: none; }            /* alleen het beeldmerk */
  .site-menu-toggle { display: block; }

  .site-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: .5rem var(--site-header-pad) 1.5rem;
    background: rgba(0, 0, 0, .94);
    border-bottom: 1px solid var(--site-header-border);
  }
  .site-menu.is-open { display: flex; }
  .site-menu a { display: block; padding: .85rem 0; }
  .site-menu .site-cta { margin-top: .75rem; text-align: center; }
  .site-nav { position: relative; }
}

@media (max-width: 480px) {
  .site-topbar .site-header__row { gap: 1rem; font-size: .75rem; }
}

/* Tot de intro start verborgen (class wordt in <head> gezet, zie hero-intro.js) */
.hero-intro-pending .site-topbar { --topbar-line: 0; }
.hero-intro-pending .site-topbar a,
.hero-intro-pending .site-logo,
.hero-intro-pending .site-menu > li,
.hero-intro-pending .site-menu-toggle { opacity: 0; }

/* Homepage-hero met header erboven: tekst nooit onder de zwevende header.
   De titelbalk regelt dit zelf via --header-space (hero-globe.css). */
.site-header + .home-hero-wrap:not(.home-hero-wrap--titlebar) .home-hero__inner {
  padding-top: var(--site-header-h);
}
@media (max-width: 900px) {
  .site-header + .home-hero-wrap:not(.home-hero-wrap--titlebar) .home-hero__inner {
    padding-top: max(22dvh, calc(var(--site-header-h) + 2rem));
  }
}