/* Header */
/* No backdrop-filter here: it would turn the header into the containing
   block for the fixed mobile nav, trapping the menu inside the header bar */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-bg-warm);
}

.header-inner {
  max-width: 1140px;
  margin: 0 auto;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.header-logo img { width: 100px; height: auto; }

.site-nav { display: none; }
.site-nav ul { list-style: none; margin: 0; padding: 0; }

.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-left: auto;
}

.hdr-bellen__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  color: var(--color-primary);
  background: var(--color-bg-warm);
  transition: background var(--transition);
}
.hdr-bellen__btn:hover { background: var(--color-bg-alt); }
.hdr-bellen__btn svg { width: 20px; height: 20px; }

.hdr-booking__long { display: none; }

/* Hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.is-open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.is-open span:nth-child(2) { opacity: 0; }
.hamburger.is-open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav panel */
@media (max-width: 1023px) {
  .site-nav {
    display: block;
    position: fixed;
    inset: 0;
    top: 65px;
    background: var(--color-bg);
    padding: var(--space-lg) 20px;
    transform: translateX(100%);
    /* visibility keeps the closed panel out of reach so mobile browsers
       cannot pan the page sideways towards it */
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0s linear 0.3s;
    overflow-y: auto;
  }
  .site-nav.is-open {
    transform: translateX(0);
    visibility: visible;
    transition: transform 0.3s ease;
  }
  .site-nav ul { display: flex; flex-direction: column; gap: var(--space-md); }
  .site-nav a {
    display: block;
    font-family: var(--font-heading);
    font-size: 1.4rem;
    font-weight: 400;
    text-decoration: none;
    padding: var(--space-sm) 0;
    border-bottom: 1px solid var(--color-bg-warm);
  }
  .site-nav a.is-active { color: var(--color-primary); font-weight: 600; }
}

@media (min-width: 1024px) {
  .header-inner { padding: 12px 20px; }
  .header-logo img { width: 130px; }
  .hamburger { display: none; }
  .site-nav { display: block; margin-left: var(--space-lg); }
  .site-nav ul { display: flex; gap: var(--space-lg); }
  .site-nav a {
    text-decoration: none;
    font-size: 16px;
    font-weight: 400;
    color: var(--color-text);
    padding: 6px 0;
    border-bottom: 2px solid transparent;
    transition: border-color var(--transition), color var(--transition);
  }
  .site-nav a:hover { color: var(--color-primary); }
  .site-nav a.is-active { color: var(--color-primary); border-bottom-color: var(--color-primary-light); }
  .hdr-booking__long { display: inline; }
}