/* ============================================================
   GEOTEAM Ingenieure Gruppe – Stylesheet
   Reines CSS, keine externen Abhängigkeiten
   ============================================================ */

/* --- Variablen -------------------------------------------- */
:root {
  --color-primary:       #1a3a5c;   /* Dunkelblau */
  --color-primary-light: #2563a8;   /* Mittelblau */
  --color-accent:        #e07b15;   /* Orange */
  --color-accent-dark:   #c06a0c;
  --color-bg:            #f4f6f9;
  --color-surface:       #ffffff;
  --color-text:          #1e2a36;
  --color-text-muted:    #5a6a7a;
  --color-border:        #dde3ec;
  --color-top-bar-bg:    #23272e;
  --color-top-bar-text:  rgba(255,255,255,0.80);

  --font-sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-size-base: 1rem;           /* 16px */
  --line-height: 1.65;

  --radius:     8px;
  --radius-lg:  12px;
  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.05);
  --shadow-md:  0 4px 12px rgba(0,0,0,.10), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg:  0 8px 24px rgba(0,0,0,.12);
  --transition: 0.22s ease;

  --container-max: 1140px;
  --container-pad: 1.25rem;
  --header-h:     70px;
}

/* --- Reset ------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main { flex: 1; }

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

a {
  color: var(--color-primary-light);
  text-decoration: none;
}

a:hover { text-decoration: underline; }

ul { list-style: none; }

/* --- Hilfklassen ------------------------------------------ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

/* ============================================================
   TOP-BAR
   ============================================================ */
.top-bar {
  background: #363c46;
  color: var(--color-top-bar-text);
  font-size: 0.8125rem;           /* 13px */
  padding-block: 0.45rem;
}

.top-bar__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
}

.top-bar__item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--color-top-bar-text);
  text-decoration: none;
  transition: color var(--transition);
}

.top-bar__item:hover { color: #fff; text-decoration: none; }
.top-bar__hours     { margin-inline-start: auto; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.site-header__inner {
  display: flex;
  align-items: center;
  height: var(--header-h);
  gap: 1rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  flex-shrink: 0;
}

.logo__img {
  height: 46px;
  width: auto;
  display: block;
}

.logo__subtitle {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--color-text-muted);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding-inline-start: 0.4rem;
  border-inline-start: 2px solid var(--color-border);
}

/* Navigation */
.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-inline-start: auto;
}

.main-nav__link {
  padding: 0.45rem 0.85rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
}

.main-nav__link:hover {
  background: var(--color-bg);
  color: var(--color-primary);
  text-decoration: none;
}

.main-nav__link--active {
  color: var(--color-primary);
  font-weight: 600;
}

/* Hamburger-Button */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  margin-inline-start: auto;
  background: none;
  border: none;
  cursor: pointer;
  border-radius: var(--radius);
  transition: background var(--transition);
}

.menu-toggle:hover { background: var(--color-bg); }

.menu-toggle__bar {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
  transform-origin: center;
}

/* Hamburger → X */
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(2) {
  opacity: 0;
}
.menu-toggle[aria-expanded="true"] .menu-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: #fff;
  padding-block: 4rem 3.5rem;
  text-align: center;
}

.hero__title {
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.hero__text {
  font-size: clamp(1rem, 2vw, 1.15rem);
  max-width: 640px;
  margin-inline: auto;
  opacity: 0.9;
}

/* ============================================================
   CARDS-SEKTION
   ============================================================ */
.cards-section {
  padding-block: 3.5rem;
}

.cards-section__heading {
  text-align: center;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 2.5rem;
  position: relative;
}

.cards-section__heading::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  margin: 0.75rem auto 0;
}

/* Grid */
.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

/* Einzelne Karte */
.card {
  --card-color: #e07b15;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
  border-top: 4px solid var(--card-color);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card__image-wrap {
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: #fff;
}

.card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.card:hover .card__image {
  transform: scale(1.04);
}

.card__body {
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  flex: 1;
}

.card__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.3;
}

.card__tags {
  font-size: 0.78rem;
  color: var(--card-color);
  font-weight: 600;
  letter-spacing: 0.01em;
  min-height: 2.8rem;
}

.card__text {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.card__list {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.card__list li {
  padding-inline-start: 1.25rem;
  position: relative;
}

.card__list li::before {
  content: "•";
  color: var(--card-color);
  font-weight: bold;
  position: absolute;
  left: 0.25rem;
}

.card .btn {
  margin-top: auto;
  align-self: flex-start;
  background: var(--card-color);
}

.card .btn:hover {
  background: var(--card-color);
  filter: brightness(0.88);
}

/* ============================================================
   BUTTON
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.25rem;
  background: var(--color-accent);
  color: #fff;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius);
  text-decoration: none;
  border: 2px solid transparent;
  transition: background var(--transition), border-color var(--transition), transform var(--transition);
  cursor: pointer;
}

.btn:hover {
  background: var(--color-accent-dark);
  text-decoration: none;
  transform: translateY(-1px);
}

.btn:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--outline {
  background: transparent;
  border-color: #fff;
  color: #fff;
}

.btn--outline:hover {
  background: rgba(255,255,255,.12);
}

/* ============================================================
   KONTAKT-LEISTE
   ============================================================ */
.contact-bar {
  background: var(--color-primary);
  color: #fff;
  padding-block: 2.25rem;
}

.contact-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.contact-bar__text {
  font-size: 1.05rem;
  font-weight: 500;
}

/* ============================================================
   INFO-SEKTION (Kontakt & Anfahrt)
   ============================================================ */
.info-section {
  background: #363c46;
  padding-block: 3.5rem;
}

.info-section__grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1.6fr;
  gap: 3rem;
  align-items: start;
}

.info-section__intro h2 {
  font-size: clamp(1.6rem, 3vw, 2rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.info-section__intro p {
  color: rgba(255,255,255,0.75);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 1.5rem;
}

.info-section__contact-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid rgba(255,255,255,0.15);
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.contact-list__item {
  display: flex;
  align-items: flex-start;
  gap: 0.65rem;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.75);
}

.contact-list__icon {
  flex-shrink: 0;
  margin-top: 0.1rem;
  color: rgba(255,255,255,0.5);
}

.contact-list__item a {
  color: rgba(255,255,255,0.90);
  text-decoration: none;
  transition: color var(--transition);
}

.contact-list__item a:hover {
  color: #fff;
  text-decoration: underline;
}

.info-section__map {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.info-section__map iframe {
  width: 100%;
  height: 320px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  display: block;
}

.info-section__map-link {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.5);
  text-align: right;
  text-decoration: none;
  transition: color var(--transition);
}

.info-section__map-link:hover {
  color: rgba(255,255,255,0.85);
  text-decoration: underline;
}

/* Map-Consent Placeholder */
.map-consent {
  width: 100%;
  height: 320px;
  background:
    linear-gradient(rgba(0,0,0,0.55), rgba(0,0,0,0.55)),
    url('../images/map-preview.jpg') center / cover no-repeat;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 1.5rem;
  text-align: center;
  box-sizing: border-box;
}

.map-consent__icon {
  color: rgba(255,255,255,0.40);
  margin-bottom: 0.25rem;
}

.map-consent__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #fff;
}

.map-consent__text {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.65);
  line-height: 1.55;
  max-width: 280px;
}

.map-consent__text strong {
  color: rgba(255,255,255,0.90);
}

.map-consent__btn {
  margin-top: 0.25rem;
}

.map-consent__link {
  font-size: 0.73rem;
  color: rgba(255,255,255,0.40);
  text-decoration: none;
  transition: color var(--transition);
}

.map-consent__link:hover {
  color: rgba(255,255,255,0.70);
  text-decoration: underline;
}

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--color-top-bar-bg);
  color: var(--color-top-bar-text);
  padding-block: 1.25rem;
  font-size: 0.85rem;
}

.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.site-footer__nav {
  display: flex;
  gap: 1.25rem;
}

.site-footer__nav a {
  color: var(--color-top-bar-text);
  text-decoration: none;
  transition: color var(--transition);
}

.site-footer__nav a:hover {
  color: #fff;
  text-decoration: none;
}

/* ============================================================
   SONSTIGE SEITEN (Impressum, Datenschutz)
   ============================================================ */
.page-content {
  padding-block: 3rem;
}

.page-content h1 {
  font-size: 2rem;
  font-weight: 800;
  color: #333333;
  margin-bottom: 0.5rem;
}

.page-content .page-divider {
  width: 48px;
  height: 3px;
  background: #333333;
  border-radius: 2px;
  margin-bottom: 2rem;
}

.page-content__body {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 2rem 2.5rem;
  max-width: 800px;
}

.page-content__body h2 {
  font-size: 1.15rem;
  font-weight: 700;
  color: #333333;
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

.page-content__body h2:first-child { margin-top: 0; }

.page-content__body p,
.page-content__body li {
  font-size: 0.93rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.page-content__body ul {
  list-style: disc;
  padding-inline-start: 1.5rem;
  margin-block: 0.5rem;
}

.page-content__body a {
  color: var(--color-primary-light);
}

.page-content__body a:hover {
  color: var(--color-accent);
}

/* ============================================================
   RESPONSIVE – Tablet  (max 900px)
   ============================================================ */
@media (max-width: 900px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
  }

  .top-bar__hours {
    display: none;
  }

  .info-section__grid {
    grid-template-columns: 1fr 1fr;
  }

  .info-section__map {
    grid-column: 1 / -1;
  }
}

/* ============================================================
   RESPONSIVE – Mobil  (max 640px)
   ============================================================ */
@media (max-width: 640px) {

  :root {
    --container-pad: 1rem;
  }

  /* Top Bar */
  .top-bar__inner {
    justify-content: center;
    gap: 0.5rem 1.25rem;
  }

  /* Header */
  .menu-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: calc(var(--header-h) + 1px);
    left: 0;
    right: 0;
    background: var(--color-surface);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem;
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-md);
  }

  .main-nav--open {
    display: flex;
  }

  .main-nav__link {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    font-size: 1rem;
  }

  .main-nav__link:hover {
    background: var(--color-bg);
  }

  /* Hero */
  .hero {
    padding-block: 2.5rem 2rem;
  }

  /* Cards: 1 Spalte */
  .cards {
    grid-template-columns: 1fr;
  }

  /* Info-Sektion */
  .info-section__grid {
    grid-template-columns: 1fr;
  }

  .info-section__map {
    grid-column: auto;
  }

  /* Footer */
  .site-footer__inner {
    flex-direction: column;
    text-align: center;
  }

  /* Sonstige Seiten */
  .page-content__body {
    padding: 1.25rem 1rem;
  }
}

/* ============================================================
   BARRIEREFREIHEIT – Focus-Styles
   ============================================================ */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* Skip-Link (unsichtbar, erscheint beim Tab) */
.skip-link {
  position: absolute;
  top: -100%;
  left: 0.5rem;
  background: var(--color-primary);
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 0 0 var(--radius) var(--radius);
  font-weight: 600;
  z-index: 9999;
  text-decoration: none;
}
.skip-link:focus { top: 0; }