/* ---------------------------------------------------------------------------
   Layout: Container, Raster, Kopf, Fuss
   Das Raster bildet die Bootstrap-3-Spalten des Originals mit CSS-Grid nach
   (12 Spalten, Rinne 30px, Breakpoints 768/992/1200px).
   --------------------------------------------------------------------------- */

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 15px;
}

.content {
  padding: 40px 15px 0;
}

/* --- Raster ------------------------------------------------------------- */

.row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gutter);
}

@media (min-width: 768px) {
  .row-sm-2 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 992px) {
  .row-md-2 { grid-template-columns: repeat(2, 1fr); }
  .row-md-3 { grid-template-columns: repeat(3, 1fr); }
  .row-md-4 { grid-template-columns: repeat(4, 1fr); }
  /* Verhaeltnisse der Bootstrap-Spalten des Originals (8/4, 7/5, 9/3) */
  .row-md-8-4 { grid-template-columns: 8fr 4fr; }
  .row-md-7-5 { grid-template-columns: 7fr 5fr; }
  .row-md-5-7 { grid-template-columns: 5fr 7fr; }
  .row-md-9-3 { grid-template-columns: 9fr 3fr; }
}

.margin-bottom-20 { margin-bottom: 20px; }
.margin-bottom-30 { margin-bottom: 30px; }
.margin-bottom-40 { margin-bottom: 40px; }

/* --- Kopfbereich -------------------------------------------------------- */

.site-header {
  position: relative;
  z-index: 99;
  border-bottom: solid 2px var(--color-border);
  background: #fff;
}

.topbar {
  padding: 8px 0;
  min-height: 34px;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-bottom: 10px;
}

.navbar-brand img {
  height: 50px;
  width: auto;
  display: block;
}

.main-nav {
  display: flex;
  gap: 5px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.main-nav a {
  display: block;
  padding: 10px 15px;
  color: var(--color-muted);
  font-size: 15px;
  font-weight: 400;
  text-transform: uppercase;
  text-decoration: none;
}

.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a[aria-current='page'] {
  color: var(--color-primary);
  text-decoration: none;
}

/* Mobiles Menue ohne JavaScript: <details> uebernimmt das Auf- und Zuklappen */
.nav-toggle {
  display: none;
}

.nav-toggle > summary {
  list-style: none;
  cursor: pointer;
  padding: 8px 12px;
  border: 1px solid #ddd;
  border-radius: 4px;
  color: var(--color-muted);
}

.nav-toggle > summary::-webkit-details-marker {
  display: none;
}

@media (max-width: 767px) {
  .header-inner {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
  }

  .nav-toggle[open] + .site-nav,
  .nav-toggle[open] ~ .site-nav {
    display: block;
    width: 100%;
  }

  .main-nav {
    flex-direction: column;
    gap: 0;
    border-top: 1px solid var(--color-border);
    padding-top: 5px;
  }
}

/* --- Hero --------------------------------------------------------------- */

.hero img {
  display: block;
  width: 100%;
  height: auto;
}

/* --- Fussbereich -------------------------------------------------------- */

.footer {
  color: var(--color-footer-text);
  background: var(--color-footer-bg);
  padding: 20px 0 30px;
  margin-top: 40px;
}

.footer p,
.footer a,
.footer address,
.footer li {
  font-size: 14px;
}

.footer a {
  color: #fff;
}

.footer .headline {
  border-bottom-color: rgba(255, 255, 255, 0.2);
}

.footer .headline h2 {
  color: #fff;
}

.copyright {
  font-size: 12px;
  padding: 11px 0 7px;
  background: var(--color-copyright-bg);
  border-top: solid 1px #777;
  color: var(--color-footer-text);
}

.copyright-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.copyright p {
  color: var(--color-footer-text);
  margin: 12px 0 0;
}

.copyright a {
  color: #fff;
  margin-left: 10px;
}

.copyright img {
  height: 50px;
  width: auto;
  margin-right: 35px;
}