/* ==========================================================================
   GKC Formatmesstische – modernisiertes Stylesheet
   Farbwerte, Charakter und Struktur an das bestehende Design angelehnt:
   Navyblau (#000080), Grau (#D2D2D2), Rot-Akzent (#FF421E / #C20041)
   ========================================================================== */

:root {
  --color-navy: #00205b;
  --color-navy-soft: #1c3a73;
  --color-gray-bar: #eceef1;
  --color-gray-border: #d7dbe1;
  --color-accent: #e4270b;
  --color-accent-dark: #b81f09;
  --color-text: #2a2f38;
  --color-bg: #ffffff;
  --font-base: Arial, "Helvetica Neue", Helvetica, Verdana, sans-serif;
  --header-height: 76px;
  --max-width: 900px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg);
}

a { color: var(--color-navy); text-decoration: none; }
a:hover, a:focus { color: var(--color-accent); }

img { max-width: 100%; display: block; }

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--color-bg);
  border-bottom: 3px solid var(--color-navy);
}

.site-header__bar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  min-height: var(--header-height);
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.site-logo img {
  height: 56px;
  width: auto;
  image-rendering: -webkit-optimize-contrast;
}

.site-logo__text {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-navy);
  line-height: 1.25;
}

.site-logo__text span {
  display: block;
  font-size: 0.72rem;
  font-weight: 400;
  color: #555b66;
}

.page-headline {
  margin-left: auto;
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-navy);
  display: none;
}

/* Hamburger */
.nav-toggle {
  margin-left: auto;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border: 1px solid var(--color-gray-border);
  border-radius: 6px;
  background: var(--color-bg);
  cursor: pointer;
  padding: 0;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  margin: 0 auto;
  background: var(--color-navy);
  transition: transform .2s ease, opacity .2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Primäre Navigation */
.primary-nav {
  max-height: 0;
  overflow: hidden;
  background: var(--color-gray-bar);
  transition: max-height .25s ease;
}

.primary-nav.is-open { max-height: 400px; }

.primary-nav ul {
  list-style: none;
  margin: 0;
  padding: 8px 20px 14px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.primary-nav li + li { margin-top: 2px; }

.primary-nav a {
  display: block;
  padding: 10px 6px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--color-navy);
  border-bottom: 1px solid var(--color-gray-border);
}

.primary-nav a[aria-current="page"],
.primary-nav a[aria-current="true"] {
  color: var(--color-accent);
}

/* -------------------- Sekundäre Navigation (Produktvarianten) -------------------- */

.sub-nav {
  border-bottom: 1px solid var(--color-gray-border);
  background: #fbfbfc;
}

.sub-nav__scroll {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 6px;
  padding: 10px 16px;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.sub-nav a {
  flex-shrink: 0;
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-navy-soft);
  border: 1px solid var(--color-gray-border);
  white-space: nowrap;
}

.sub-nav a:hover { border-color: var(--color-accent); color: var(--color-accent); }

.sub-nav a[aria-current="page"] {
  background: var(--color-navy);
  border-color: var(--color-navy);
  color: #fff;
}

/* -------------------- Inhalt -------------------- */

main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 56px;
}

.breadcrumb {
  font-size: 0.8rem;
  color: #6b7280;
  margin: 0 0 6px;
}

.breadcrumb a { color: #6b7280; text-decoration: underline; }

h1 {
  font-size: 1.6rem;
  color: var(--color-navy);
  margin: 0 0 22px;
}

.spec-card {
  background: #fff;
  border: 1px solid var(--color-gray-border);
  border-radius: 12px;
  overflow: hidden;
  max-width: 620px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
}

.spec-table {
  width: 100%;
  border-collapse: collapse;
}

.spec-table tr:not(:last-child) td {
  border-bottom: 1px solid var(--color-gray-border);
}

.spec-table td {
  padding: 12px 18px;
  font-size: 0.95rem;
  vertical-align: top;
}

.spec-table td:first-child {
  color: #555b66;
  width: 55%;
}

.spec-table td:last-child {
  font-weight: 600;
  color: var(--color-text);
}

.spec-table tr.spec-note td {
  color: #555b66;
  font-weight: 400;
  font-style: italic;
  padding-top: 6px;
}

/* -------------------- Startseite: Kachel-Grid -------------------- */

.intro-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  max-width: 700px;
}

.intro-card {
  display: block;
  border: 1px solid var(--color-gray-border);
  border-radius: 12px;
  overflow: hidden;
  color: inherit;
  background: #fff;
  transition: box-shadow .15s ease, transform .15s ease, border-color .15s ease;
}

.intro-card:hover {
  box-shadow: 0 6px 18px rgba(0,0,0,0.08);
  transform: translateY(-2px);
  border-color: var(--color-accent);
}

.intro-card img { width: 100%; height: auto; }

.intro-card__label {
  padding: 14px 16px;
  font-weight: 700;
  color: var(--color-navy);
  font-size: 1.02rem;
}

@media (min-width: 560px) {
  .intro-grid { grid-template-columns: 1fr 1fr; }
}

/* -------------------- Zweispaltiger Inhalt (Text + Bild) -------------------- */

.content-flex {
  display: flex;
  flex-wrap: wrap;
  gap: 32px;
  align-items: flex-start;
}

.content-flex .content-text { flex: 1 1 340px; }
.content-flex .content-figure { flex: 0 1 320px; }

.content-figure img {
  border-radius: 10px;
  border: 1px solid var(--color-gray-border);
}

.content-figure figcaption {
  font-size: 0.78rem;
  color: #6b7280;
  margin-top: 6px;
}

.content-text h2 {
  font-size: 1.15rem;
  color: var(--color-navy);
  margin: 26px 0 10px;
}

.content-text h2:first-child { margin-top: 0; }

.content-text p { margin: 0 0 14px; }

.content-text ul.plain {
  list-style: none;
  margin: 0 0 14px;
  padding: 0;
}

.content-text ul.plain li {
  padding-left: 18px;
  position: relative;
}

.content-text ul.plain li::before {
  content: "\2022";
  color: var(--color-accent);
  font-weight: 700;
  position: absolute;
  left: 0;
}

/* -------------------- Impressum -------------------- */

.legal-columns {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  max-width: 760px;
}

.contact-block address {
  font-style: normal;
  line-height: 1.7;
}

.contact-block p { margin: 0 0 4px; }

.legal-block h2 {
  font-size: 1rem;
  color: var(--color-navy);
  margin: 22px 0 8px;
}

.legal-block h2:first-of-type { margin-top: 0; }

.legal-block p, .legal-block li {
  font-size: 0.92rem;
  line-height: 1.6;
  margin: 0 0 10px;
}

.legal-lang-tag {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #fff;
  background: var(--color-navy);
  padding: 3px 9px;
  border-radius: 4px;
  margin: 4px 0 14px;
}

/* -------------------- Fuß -------------------- */

.site-footer {
  border-top: 1px solid var(--color-gray-border);
  background: var(--color-gray-bar);
}

.site-footer__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 18px 20px;
}

.lang-switch {
  display: flex;
  gap: 8px;
  align-items: center;
}

.lang-switch a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--color-gray-border);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-navy);
  background: var(--color-bg);
}

.lang-switch a:hover { border-color: var(--color-accent); color: var(--color-accent); }

.lang-switch img { width: 18px; height: auto; }

/* Desktop-Kopie sitzt im Header oben rechts, mobile Kopie im aufklappbaren Menü */
.lang-switch--desktop { display: none; }

.lang-switch--mobile {
  max-width: var(--max-width);
  margin: 4px auto 0;
  padding: 12px 20px 16px;
  border-top: 1px solid var(--color-gray-border);
}

.site-address {
  font-size: 0.78rem;
  color: #555b66;
  line-height: 1.7;
}

.site-address a { color: #555b66; }

.addr-item { display: block; }

/* -------------------- Desktop-Layout ab 768px -------------------- */

@media (min-width: 768px) {
  .nav-toggle { display: none; }

  .page-headline { display: block; }

  .lang-switch--desktop { display: flex; }

  .lang-switch--mobile { display: none; }

  .primary-nav {
    max-height: none;
    overflow: visible;
    background: transparent;
    border-top: 1px solid var(--color-gray-border);
  }

  .primary-nav ul {
    display: flex;
    gap: 6px;
    padding: 8px 20px;
  }

  .primary-nav li + li { margin-top: 0; }

  .primary-nav a {
    border-bottom: none;
    padding: 8px 12px;
    border-radius: 6px;
  }

  .primary-nav a:hover { background: #fff; }

  .primary-nav a[aria-current="page"],
  .primary-nav a[aria-current="true"] {
    background: var(--color-navy);
    color: #fff;
  }

  main { padding-top: 40px; }

  .site-address {
    display: flex;
    flex-wrap: wrap;
    column-gap: 10px;
    row-gap: 2px;
  }

  .addr-item + .addr-item::before {
    content: "\2022";
    margin-right: 10px;
  }
}