/* Shared site header — loaded on every public page so header renders identically
   regardless of which page-level stylesheet is active. Tokens are scoped to
   .site-header with fallback defaults so the header stays consistent on pages
   that don't define the app-level --color-* variables. Roboto is provided by
   the self-hosted fonts.css that every page loads alongside this stylesheet. */

.site-header {
  --header-bg: rgba(246, 249, 252, 0.8);
  --header-bg-scrolled: rgba(246, 249, 252, 0.95);
  --header-ink: #0f172a;
  --header-accent: #0f4c81;
  --header-accent-hover: #0b3a66;
  --header-border: rgba(212, 221, 232, 0.5);
  --header-border-scrolled: rgba(212, 221, 232, 0.8);
  --header-shadow-scrolled: 0 1px 3px rgba(15, 23, 42, 0.06);
  --header-shadow-mobile: 0 12px 28px -20px rgba(15, 23, 42, 0.35);
  --header-duration-fast: 150ms;
  --header-duration-normal: 250ms;
  --header-ease: cubic-bezier(0.19, 1, 0.22, 1);
  --header-container-padding: max(20px, 6vw);

  position: sticky;
  top: 0;
  z-index: 20;
  padding: 1rem 0;
  border-bottom: 1px solid var(--header-border);
  background: var(--header-bg);
  backdrop-filter: blur(16px) saturate(1.4);
  -webkit-backdrop-filter: blur(16px) saturate(1.4);
  color: var(--header-ink);
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  transition:
    background var(--header-duration-normal),
    border-color var(--header-duration-normal),
    box-shadow var(--header-duration-normal);
}

.site-header.is-scrolled {
  background: var(--header-bg-scrolled);
  border-bottom-color: var(--header-border-scrolled);
  box-shadow: var(--header-shadow-scrolled);
}

.site-header .header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--header-container-padding);
  position: relative;
}

.site-header .brand {
  display: inline-flex;
  align-items: center;
  color: var(--header-ink);
  font-family: inherit;
  font-size: 1.35rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  text-decoration: none;
  line-height: 1;
}

.site-header .brand:hover,
.site-header .brand:focus-visible {
  color: var(--header-ink);
  text-decoration: none;
}

.site-header .brand-strong {
  font-weight: 700;
}

.site-header .brand-icon {
  display: inline-flex;
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: var(--header-accent);
}

.site-header .brand-icon svg {
  width: 100%;
  height: 100%;
  display: block;
}

.site-header .nav {
  display: none;
  align-items: center;
  gap: 1.35rem;
  font-size: 1rem;
  font-weight: 500;
}

.site-header .nav a {
  position: relative;
  color: var(--header-ink);
  text-decoration: none;
  transition: color var(--header-duration-fast);
}

.site-header .nav a:hover {
  color: var(--header-accent);
}

.site-header .nav a[aria-current='page'] {
  color: var(--header-accent);
}

.site-header .nav a:not(.nav-cta)::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--header-accent);
  border-radius: 1px;
  transition: width var(--header-duration-normal) var(--header-ease);
}

.site-header .nav a:not(.nav-cta):hover::after {
  width: 100%;
}

.site-header .nav a[aria-current='page']:not(.nav-cta)::after {
  width: 100%;
}

.site-header .nav a.nav-cta {
  padding: 0.55rem 1rem;
  border-radius: 999px;
  color: #fff;
  background: var(--header-accent);
  font-size: 0.95rem;
  transition:
    background var(--header-duration-fast),
    transform var(--header-duration-fast) var(--header-ease);
}

/* --- Submenu (Lösungen dropdown) --- */
.site-header .nav-group {
  position: relative;
  display: inline-flex;
  align-items: center;
}

.site-header .nav-group-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0;
  margin: 0;
  border: 0;
  background: transparent;
  color: var(--header-ink);
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  position: relative;
  transition: color var(--header-duration-fast);
}

.site-header .nav-group-toggle:hover,
.site-header .nav-group-toggle:focus-visible {
  color: var(--header-accent);
  outline: none;
}

.site-header .nav-group.is-current .nav-group-toggle {
  color: var(--header-accent);
}

.site-header .nav-group-caret {
  display: inline-flex;
  width: 0.7em;
  height: 0.7em;
  transition: transform var(--header-duration-fast) var(--header-ease);
}

.site-header .nav-group-caret svg {
  width: 100%;
  height: 100%;
  display: block;
}

.site-header .nav-group-toggle[aria-expanded="true"] .nav-group-caret {
  transform: rotate(180deg);
}

.site-header .nav-submenu {
  display: flex;
  flex-direction: column;
}

.site-header .nav a.nav-cta:hover {
  color: #fff;
  background: var(--header-accent-hover);
  transform: translateY(-1px);
}

.site-header .nav-cta:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(15, 76, 129, 0.35);
}

.site-header .nav-cta:active {
  transform: translateY(0) scale(0.97);
}

.site-header .nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid rgba(15, 76, 129, 0.12);
  border-radius: 10px;
  background: transparent;
  cursor: pointer;
  color: var(--header-ink);
  transition:
    background var(--header-duration-fast),
    border-color var(--header-duration-fast);
}

.site-header .nav-toggle:hover {
  background: rgba(15, 76, 129, 0.04);
  border-color: rgba(15, 76, 129, 0.2);
}

.site-header .nav-toggle svg {
  width: 20px;
  height: 20px;
}

@media (min-width: 920px) {
  .site-header .nav {
    display: flex;
  }

  .site-header .nav-toggle {
    display: none;
  }

  .site-header .nav-submenu {
    position: absolute;
    top: calc(100% + 0.75rem);
    left: 50%;
    transform: translate(-50%, -4px);
    min-width: 12rem;
    padding: 0.4rem;
    background: #fff;
    border: 1px solid var(--header-border-scrolled);
    border-radius: 12px;
    box-shadow: 0 18px 36px -18px rgba(15, 23, 42, 0.35);
    opacity: 0;
    pointer-events: none;
    transition:
      opacity var(--header-duration-fast) var(--header-ease),
      transform var(--header-duration-fast) var(--header-ease);
    z-index: 1;
  }

  .site-header .nav-submenu::before {
    content: '';
    position: absolute;
    inset: -0.75rem 0 auto 0;
    height: 0.75rem;
  }

  .site-header .nav-group:hover .nav-submenu,
  .site-header .nav-group:focus-within .nav-submenu,
  .site-header .nav-group-toggle[aria-expanded="true"] + .nav-submenu {
    opacity: 1;
    pointer-events: auto;
    transform: translate(-50%, 0);
  }

  .site-header .nav-submenu a {
    padding: 0.55rem 0.85rem;
    border-radius: 8px;
    color: var(--header-ink);
    font-size: 0.95rem;
    white-space: nowrap;
  }

  .site-header .nav-submenu a:hover,
  .site-header .nav-submenu a:focus-visible {
    background: rgba(15, 76, 129, 0.08);
    color: var(--header-accent);
    outline: none;
  }

  .site-header .nav-submenu a[aria-current="page"] {
    background: rgba(15, 76, 129, 0.1);
    color: var(--header-accent);
    font-weight: 600;
  }

  .site-header .nav-submenu a::after {
    display: none;
  }
}

@media (max-width: 919px) {
  .site-header .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 0;
    background: rgba(246, 249, 252, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--header-border-scrolled);
    box-shadow: var(--header-shadow-mobile);
    transform: translateY(-8px);
    opacity: 0;
    pointer-events: none;
    transition:
      transform var(--header-duration-normal) var(--header-ease),
      opacity var(--header-duration-normal) var(--header-ease);
  }

  .site-header .nav.is-open {
    display: flex;
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-header .nav a {
    padding: 0.85rem var(--header-container-padding);
  }

  .site-header .nav a:not(.nav-cta)::after {
    display: none;
  }

  .site-header .nav .nav-cta {
    margin: 0.5rem var(--header-container-padding);
    text-align: center;
  }

  .site-header .nav-group {
    display: block;
    width: 100%;
  }

  .site-header .nav-group-toggle {
    width: 100%;
    padding: 0.85rem var(--header-container-padding);
    justify-content: space-between;
    text-align: left;
  }

  .site-header .nav-submenu {
    display: none;
    padding: 0 0 0.4rem 0;
  }

  .site-header .nav-group-toggle[aria-expanded="true"] + .nav-submenu {
    display: flex;
  }

  .site-header .nav-submenu a {
    padding: 0.6rem calc(var(--header-container-padding) + 1rem);
    font-size: 0.95rem;
    color: var(--header-ink);
  }

  .site-header .nav-submenu a[aria-current="page"] {
    color: var(--header-accent);
    font-weight: 600;
  }
}

/* Go-live countdown banner — slim full-width bar in normal flow ABOVE the
   sticky header (not sticky itself, so it scrolls away). Reuses the shared
   accent token; falls back to the header accent hex if the token is absent. */
.golive-banner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 0.25rem;
  min-height: 36px;
  padding: 0.35rem var(--header-container-padding, max(20px, 6vw));
  background: var(--color-accent, #0f4c81);
  color: #fff;
  font-family: 'Roboto', system-ui, -apple-system, sans-serif;
  font-size: 0.85rem;
  line-height: 1.3;
  text-align: center;
}

.golive-banner__countdown {
  margin-left: 0.5rem;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}