/* ── Gemeinsamer Header für alle Seiten (Muster: .site-header aus index.html) ──
   Eigenständig: definiert alle benötigten Werte selbst, hängt nicht an style.css.
   Strawford wird von jeder Seite selbst per @font-face geladen. */

html { scroll-padding-top: 84px; }

.site-header {
  --nav-fg: #14161c;
  --nav-fg-secondary: #4a5160;
  --nav-accent: #353cff;
  --nav-accent-hover: #2a30d6;
  --nav-accent-soft: #f0f1ff;
  --nav-border: rgba(0, 0, 0, 0.08);
  --nav-border-strong: rgba(0, 0, 0, 0.14);
  --nav-font: 'Strawford', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --nav-dur: 200ms;
  position: sticky; top: 0;
  z-index: 90;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(20px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  color: var(--nav-fg);
  font-family: var(--nav-font);
}
.site-header a { text-decoration: none; color: inherit; }
.site-header a:focus-visible,
.site-header button:focus-visible {
  outline: 2px solid var(--nav-accent);
  outline-offset: 2px;
  border-radius: 4px;
}

/* Marke: Wortmarke, auf Unterseiten daneben der Produktname */
.brand { display: flex; align-items: center; gap: 14px; }
.brand-wordmark { height: 34px; display: block; }
.brand-sep { width: 1px; height: 24px; background: var(--nav-border); }
.brand-product { font: 500 17px/1 var(--nav-font); letter-spacing: -0.01em; color: var(--nav-fg); }

/* Navigation */
.header-nav { display: flex; align-items: center; gap: 28px; font-size: 13px; }
.header-nav-links { display: flex; gap: 24px; align-items: center; }
.header-nav-links > a,
.nav-products-toggle {
  font: 400 13px/1 var(--nav-font);
  color: var(--nav-fg-secondary);
  letter-spacing: 0.02em;
  transition: color var(--nav-dur);
}
.header-nav-links > a:hover,
.nav-products-toggle:hover { color: var(--nav-accent); }

/* Produkte-Aufklappmenü (Disclosure; ohne JS bleibt der Link ein Sprung auf /#products) */
.nav-item-products { position: relative; }
.nav-products-toggle { display: inline-flex; align-items: center; gap: 6px; }
.nav-caret { font-size: 9px; line-height: 1; transition: transform 150ms; }
.nav-item-products.open .nav-caret { transform: rotate(180deg); }
.nav-products-menu {
  display: none;
  position: absolute; top: calc(100% + 12px); left: -14px;
  min-width: 300px;
  margin: 0; padding: 8px;
  list-style: none;
  background: #fff;
  border: 1px solid var(--nav-border);
  border-radius: 14px;
  box-shadow: 0 12px 32px rgba(20, 22, 28, 0.10);
}
.nav-item-products.open .nav-products-menu { display: block; }
.nav-products-menu a {
  display: flex; flex-direction: column; gap: 2px;
  padding: 10px 12px;
  border-radius: 10px;
  transition: background var(--nav-dur);
}
.nav-products-menu a:hover { background: var(--nav-accent-soft); }
.nav-products-menu a[aria-current="page"] .nav-p-name { color: var(--nav-accent); }
.nav-p-name { font: 500 14px/1.3 var(--nav-font); color: var(--nav-fg); }
.nav-p-sub { font: 400 12px/1.4 var(--nav-font); color: var(--nav-fg-secondary); }

/* Kontakt-Pille */
.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 14px/1 var(--nav-font);
  letter-spacing: 0.01em;
  padding: 0.7rem 1.3rem;
  color: var(--nav-fg);
  background: transparent;
  border: 1px solid var(--nav-border-strong);
  border-radius: 100px;
  transition: border-color var(--nav-dur), background var(--nav-dur), color var(--nav-dur);
}
.header-cta:hover {
  border-color: var(--nav-fg);
  background: rgba(0, 0, 0, 0.04);
}

/* Burger (nur mobil sichtbar) */
.nav-burger {
  display: none;
  appearance: none; background: none; border: 0; cursor: pointer;
  flex-direction: column; gap: 5px;
  padding: 10px; margin: -10px;
}
.nav-burger span {
  display: block; width: 20px; height: 2px;
  background: var(--nav-fg); border-radius: 1px;
  transition: transform 150ms, opacity 150ms;
}
.site-header.nav-open .nav-burger span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.site-header.nav-open .nav-burger span:nth-child(2) { opacity: 0; }
.site-header.nav-open .nav-burger span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobil: gestapelte Liste hinter dem Burger ── */
@media (max-width: 640px) {
  .site-header { padding: 12px 20px; }
  .brand-wordmark { height: 28px; }
  .brand-product { font-size: 15px; }
  .nav-burger { display: flex; }
  .header-nav { display: none; }
  .site-header.nav-open .header-nav {
    display: flex; flex-direction: column; align-items: stretch; gap: 0;
    position: absolute; top: 100%; left: 0; right: 0;
    padding: 6px 20px 20px;
    background: #fff;
    border-bottom: 1px solid var(--nav-border);
    box-shadow: 0 12px 24px rgba(20, 22, 28, 0.08);
  }
  .header-nav-links { flex-direction: column; align-items: stretch; gap: 0; }
  .header-nav-links > a,
  .nav-products-toggle {
    font-size: 15px; line-height: 1.4;
    padding: 12px 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
  }
  .nav-item-products { border-bottom: 1px solid rgba(0, 0, 0, 0.04); }
  .nav-products-toggle { display: flex; justify-content: space-between; width: 100%; border-bottom: 0; }
  .nav-products-menu {
    position: static;
    min-width: 0;
    border: 0; border-radius: 0; box-shadow: none;
    padding: 0 0 8px 12px;
  }
  .header-cta { align-self: flex-start; margin-top: 14px; }
}