/* css/header.css — Einheitlicher Praxis-Header mit Dropdown-Navigation.
 * AS37 (20.05.2026) · P-09: löst das Header-CSS-Duplikat aus AS32 auf —
 * EINE Quelle für den Header-Stil, auf allen 10 Seiten eingebunden.
 * Setzt css/brand-tokens.css voraus (Custom Properties).
 * !important an Header-Text-Größen schlägt die universelle 18px-Regel
 * in css/style.css (greift nur auf index.html, schadet sonst nicht).
 */

/* ===== Header-Grundgerüst ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--white);
  box-shadow: var(--shadow-header);
  border-bottom: 1px solid var(--border-light);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 80px;
}
.header-brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: inherit;
  flex-shrink: 0;
}
.header-brand .logo-image { height: 40px; width: auto; }
.header-text { display: flex; flex-direction: column; line-height: 1.2; }
.header-brand .eyebrow {
  display: inline-block;
  font-size: 11px !important;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold-primary);
  font-weight: var(--fw-medium);
}
.header-brand .praxis-name {
  font-size: 1rem !important;
  font-weight: var(--fw-semibold);
  color: var(--anthracite);
  letter-spacing: var(--ls-headline);
}

/* ===== Haupt-Navigation ===== */
.main-nav > ul {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 1.5rem;
  align-items: center;
}
.main-nav a {
  text-decoration: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: var(--fw-medium);
  letter-spacing: 0.3px;
  transition: color 0.2s ease;
}
.main-nav a:hover,
.main-nav a:focus-visible { color: var(--gold-primary); }

/* ===== CTA im Header ===== */
.main-nav .nav-cta { padding: 0.5rem 1.25rem; }
.main-nav .nav-cta span { font-size: 0.9rem !important; }
.main-nav .nav-cta:hover,
.main-nav .nav-cta:focus-visible { color: var(--white); }

/* ===== Dropdown ===== */
.has-dropdown { position: relative; }
.dropdown-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  background: transparent;
  border: 0;
  padding: 0;
  margin: 0;
  cursor: pointer;
  font-family: inherit;
  font-size: 0.95rem !important;
  font-weight: var(--fw-medium);
  letter-spacing: 0.3px;
  color: var(--text-primary);
  transition: color 0.2s ease;
}
.dropdown-toggle:hover,
.dropdown-toggle:focus-visible,
.has-dropdown:hover .dropdown-toggle { color: var(--gold-primary); }
.dropdown-caret {
  width: 9px;
  height: 9px;
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.has-dropdown.is-open .dropdown-caret { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 230px;
  margin: 0;
  padding: 0.5rem 0;
  list-style: none;
  background: var(--white);
  border: 1px solid var(--border-light);
  border-radius: 0 0 10px 10px;
  box-shadow: var(--shadow-card);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s linear 0.18s;
  z-index: 90;
}
.has-dropdown.is-open > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
  transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s;
}
.dropdown-menu li { margin: 0; }
.dropdown-menu a {
  display: block;
  padding: 0.5rem 1.25rem;
  font-size: 0.9rem;
  white-space: nowrap;
}
.dropdown-menu a:hover,
.dropdown-menu a:focus-visible {
  color: var(--gold-primary);
  background: var(--cream-accent);
}

/* Desktop: Hover öffnet zusätzlich (nur Geräte mit echtem Zeiger) */
@media (hover: hover) and (pointer: fine) {
  .has-dropdown:hover > .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0s;
  }
  .has-dropdown:hover .dropdown-caret { transform: rotate(180deg); }
}

/* ===== Burger-Toggle ===== */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 32px;
  height: 24px;
  background: transparent;
  border: 0;
  padding: 0;
  cursor: pointer;
  flex-shrink: 0;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--anthracite);
  border-radius: 1px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle.is-open span:nth-child(1) { transform: translateY(11px) rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { transform: translateY(-11px) rotate(-45deg); }

/* ===== Mobile (Burger-Menü mit Akkordeon-Dropdowns) ===== */
@media (max-width: 768px) {
  .header-brand .praxis-name { font-size: 0.85rem !important; }
  .nav-toggle { display: flex; }
  .main-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    box-shadow: var(--shadow-card);
    border-top: 1px solid var(--border-light);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .main-nav.is-open { max-height: calc(100vh - 80px); overflow-y: auto; }
  .main-nav > ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem var(--container-padding) 1rem;
  }
  .main-nav > ul > li { border-bottom: 1px solid var(--border-light); }
  .main-nav > ul > li:last-child { border-bottom: 0; }
  .main-nav a,
  .dropdown-toggle {
    display: flex;
    width: 100%;
    padding: 0.85rem 0;
  }
  .dropdown-toggle { justify-content: space-between; }
  /* Dropdown auf Mobile = aufklappbares Inline-Akkordeon */
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    border: 0;
    border-radius: 0;
    box-shadow: none;
    background: var(--cream-bg);
    padding: 0;
    min-width: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }
  .has-dropdown.is-open > .dropdown-menu { max-height: 600px; }
  .dropdown-menu a { padding: 0.7rem 1rem; white-space: normal; }
  .main-nav a.nav-cta {
    justify-content: center;
    margin-top: 0.75rem;
  }
}

/* ===== Reduced Motion ===== */
@media (prefers-reduced-motion: reduce) {
  .dropdown-menu,
  .dropdown-caret,
  .nav-toggle span,
  .main-nav,
  .has-dropdown.is-open > .dropdown-menu {
    transition: none;
  }
}