/* ================================================================
   KS Hausbau — modern header & navigation
   Framework-independent (no Bootstrap classes), mobile-first.
   Coexists with the legacy Bootstrap 3 theme used elsewhere on the site.
   ================================================================ */

.ks-site-header {
  position: relative;
  z-index: 1000;
}

/* ---------- Top utility bar ---------- */
.ks-topbar {
  background-color: #646567;
  color: #fff;
  font-size: 0.85em;
}
.ks-topbar-inner {
  max-width: 1170px;
  margin: 0 auto;
  padding: 8px 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
}
.ks-topbar-phone {
  color: #fff;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.ks-topbar-phone:hover,
.ks-topbar-phone:focus {
  color: #f39207;
}
.ks-topbar-links {
  list-style: none;
  display: flex;
  gap: 14px;
  margin: 0;
  padding: 0;
}
.ks-topbar-links a {
  color: #fff;
  text-decoration: none;
  display: inline-flex;
}
.ks-topbar-links a:hover,
.ks-topbar-links a:focus {
  color: #f39207;
}

/* ---------- Main nav bar ---------- */
.ks-nav {
  background-color: #f7f7f7;
  position: relative;
}
.ks-nav-inner {
  max-width: 1170px;
  margin: 0 auto;
  padding: 10px 15px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}
.ks-nav-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #fff;
  padding: 14px 18px;
  flex-shrink: 0;
  align-self: stretch;
}
.ks-nav-logo img {
  display: block;
  height: 42px;
  width: auto;
}

/* Hamburger toggle (mobile) */
.ks-nav-toggle {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-end;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  flex-shrink: 0;
}
.ks-nav-toggle-bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: #333;
  transition: transform 0.2s ease, opacity 0.2s ease, width 0.2s ease;
}
.ks-nav-toggle-bar:nth-child(2) {
  width: 70%;
}
.ks-nav-toggle[aria-expanded="true"] .ks-nav-toggle-bar {
  width: 100%;
}
.ks-nav-toggle[aria-expanded="true"] .ks-nav-toggle-bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.ks-nav-toggle[aria-expanded="true"] .ks-nav-toggle-bar:nth-child(2) {
  opacity: 0;
}
.ks-nav-toggle[aria-expanded="true"] .ks-nav-toggle-bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.ks-nav-toggle:hover .ks-nav-toggle-bar,
.ks-nav-toggle:focus .ks-nav-toggle-bar {
  background-color: #0063af;
}

/* Mobile dropdown panel */
.ks-nav-menu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: #fff;
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.16);
  max-height: calc(100vh - 70px);
  overflow-y: auto;
}
.ks-nav-menu.is-open {
  display: block;
}

.ks-nav-list {
  list-style: none;
  margin: 0;
  padding: 8px 0;
}
.ks-nav-item {
  border-top: 1px solid #eee;
}
.ks-nav-item:first-child {
  border-top: none;
}
.ks-nav-link-row {
  display: flex;
  align-items: stretch;
}
.ks-nav-link {
  flex: 1;
  padding: 14px 20px;
  color: #333;
  text-decoration: none;
  font-weight: 400;
  font-size: 1em;
}
.ks-nav-link:hover,
.ks-nav-link:focus {
  color: #0063af;
}
.ks-nav-item.is-current > .ks-nav-link-row > .ks-nav-link {
  color: #0063af;
}
.ks-nav-caret {
  width: 48px;
  border: none;
  background: none;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #646567;
  cursor: pointer;
}
.ks-nav-caret .fa {
  font-size: 0.9em;
  transition: transform 0.2s ease;
}
.ks-nav-item.is-open > .ks-nav-link-row .ks-nav-caret .fa {
  transform: rotate(180deg);
}

.ks-nav-submenu {
  list-style: none;
  margin: 0;
  padding: 0;
  max-height: 0;
  overflow: hidden;
  background: #fafafa;
  transition: max-height 0.25s ease;
}
.ks-nav-item.is-open > .ks-nav-submenu {
  max-height: 2000px;
}
.ks-nav-sublink {
  display: block;
  padding: 12px 20px 12px 34px;
  color: #555;
  text-decoration: none;
  font-size: 0.95em;
}
.ks-nav-sublink:hover,
.ks-nav-sublink:focus {
  color: #0063af;
}
.ks-nav-subitem.is-current > .ks-nav-sublink {
  color: #0063af;
  font-weight: 600;
}
.ks-nav-subsubmenu {
  list-style: none;
  margin: 0;
  padding: 0;
}
.ks-nav-subsubmenu .ks-nav-sublink {
  padding-left: 50px;
  font-size: 0.9em;
  color: #777;
}

body.ks-nav-open {
  overflow: hidden;
}

/* ---------- Desktop ---------- */
@media (min-width: 992px) {
  .ks-nav-toggle {
    display: none;
  }
  .ks-nav-inner {
    padding: 0 15px;
    min-height: 84px;
  }
  .ks-nav-logo {
    padding: 14px 32px;
  }
  .ks-nav-logo img {
    height: 54px;
  }
  .ks-nav-menu {
    display: block;
    position: static;
    box-shadow: none;
    background: transparent;
    max-height: none;
    overflow: visible;
    flex: 1 1 auto;
  }
  .ks-nav-list {
    display: flex;
    align-items: stretch;
    justify-content: space-between;
    padding: 0;
  }
  .ks-nav-item {
    border-top: none;
    position: relative;
  }
  .ks-nav-link-row {
    align-items: center;
    height: 100%;
  }
  .ks-nav-link {
    padding: 30px clamp(14px, 1.6vw, 22px);
    font-size: clamp(15px, 1.3vw, 17px);
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
  }
  .ks-nav-link:hover,
  .ks-nav-link:focus {
    background-color: #fff;
    color: #646567;
  }
  .ks-nav-item.is-current > .ks-nav-link-row > .ks-nav-link {
    background-color: #fff;
    color: #0063af;
  }
  .ks-nav-item.has-children > .ks-nav-link-row > .ks-nav-link::after {
    content: "";
    display: inline-block;
    margin-left: 7px;
    width: 0;
    height: 0;
    border-left: 4px solid transparent;
    border-right: 4px solid transparent;
    border-top: 5px solid currentColor;
    opacity: 0.55;
    transition: transform 0.18s ease;
  }
  .ks-nav-item.has-children:hover > .ks-nav-link-row > .ks-nav-link::after,
  .ks-nav-item.has-children.is-open > .ks-nav-link-row > .ks-nav-link::after,
  .ks-nav-item.has-children:focus-within > .ks-nav-link-row > .ks-nav-link::after {
    transform: rotate(180deg);
  }
  .ks-nav-caret {
    display: none;
  }
  .ks-nav-submenu {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 240px;
    max-height: none;
    overflow: visible;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: opacity 0.18s ease, transform 0.18s ease, visibility 0.18s;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.16);
    z-index: 20;
  }
  .ks-nav-item:hover > .ks-nav-submenu,
  .ks-nav-item.is-open > .ks-nav-submenu,
  .ks-nav-item:focus-within > .ks-nav-submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .ks-nav-sublink {
    padding: 13px 22px;
    font-size: 0.95em;
  }
  .ks-nav-subsubmenu .ks-nav-sublink {
    padding-left: 34px;
  }
}