/* ═══════════════════════════════════════════════════════════════
   STS — Layout: Header, Footer, Hero, Sections, Grids
   ═══════════════════════════════════════════════════════════════ */

/* ─────────────────────────────────────────────
   Header (Sticky, transparent über Hero)
   ───────────────────────────────────────────── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  height: var(--header-height);
  background: transparent;
  transition: background var(--transition),
              backdrop-filter var(--transition),
              box-shadow var(--transition),
              border-color var(--transition);
  border-bottom: 1px solid transparent;
}

.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-lg);
}

/* Solid-Variante beim Scrollen oder auf dunklen Sub-Pages */
.header.is-scrolled,
.header--solid {
  background: rgba(10, 22, 40, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom-color: var(--color-border-on-dark);
}

/* Logo */
.header__logo {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  text-decoration: none;
}

.header__logo-img {
  height: 48px;
  width: auto;
  display: block;
  transition: opacity var(--transition);
}

.header__logo:hover .header__logo-img {
  opacity: 0.85;
}

/* Navigation (Desktop) */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 0.6rem 1rem;
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--color-text-on-dark);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  white-space: nowrap;
  line-height: 1;
}

.nav__link:hover {
  color: var(--color-accent-hover);
  background: rgba(255, 255, 255, 0.06);
}

.nav__link.is-active {
  color: var(--color-accent-hover);
}

.nav__link.is-active::after {
  content: '';
  position: absolute;
  left: 1rem;
  right: 1rem;
  bottom: 0.2rem;
  height: 2px;
  background: var(--color-accent-hover);
  border-radius: var(--radius-full);
}

/* Dropdown (Leistungen) */
.nav__item--dropdown {
  position: relative;
}

.nav__dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(-8px);
  min-width: 280px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-xl);
  padding: var(--space-xs);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
}

.nav__item--dropdown:hover .nav__dropdown,
.nav__item--dropdown:focus-within .nav__dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.nav__dropdown-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding: 0.75rem 0.85rem;
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--fs-small);
  transition: background var(--transition-fast), color var(--transition-fast);
}

.nav__dropdown-link:hover {
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.nav__dropdown-link .icon {
  width: 18px;
  height: 18px;
  color: var(--color-accent);
}

.nav__caret {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
  transition: transform var(--transition-fast);
}

.nav__item--dropdown:hover .nav__caret {
  transform: rotate(180deg);
}

/* Header-CTA */
.header__cta {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
}

/* Mobile-Menü Toggle */
.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-on-dark);
  transition: background var(--transition-fast);
}

.menu-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
}

.menu-toggle__bars {
  width: 22px;
  height: 16px;
  position: relative;
}

.menu-toggle__bars span {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: currentColor;
  border-radius: var(--radius-full);
  transition: transform var(--transition), opacity var(--transition-fast), top var(--transition);
}

.menu-toggle__bars span:nth-child(1) { top: 0; }
.menu-toggle__bars span:nth-child(2) { top: 7px; }
.menu-toggle__bars span:nth-child(3) { top: 14px; }

.menu-toggle.is-open .menu-toggle__bars span:nth-child(1) {
  top: 7px;
  transform: rotate(45deg);
}
.menu-toggle.is-open .menu-toggle__bars span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.is-open .menu-toggle__bars span:nth-child(3) {
  top: 7px;
  transform: rotate(-45deg);
}

/* Mobile Drawer */
.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(360px, 90vw);
  background: var(--color-dark);
  border-left: 1px solid var(--color-border-on-dark);
  z-index: var(--z-modal);
  transform: translateX(100%);
  transition: transform var(--transition);
  display: flex;
  flex-direction: column;
  padding: calc(var(--header-height) + var(--space-md)) var(--space-lg) var(--space-lg);
  overflow-y: auto;
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu__list {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  margin-bottom: var(--space-lg);
}

.mobile-menu__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--fs-h4);
  color: var(--color-text-on-dark);
  border-bottom: 1px solid var(--color-border-on-dark);
}

.mobile-menu__link:hover {
  color: var(--color-accent-hover);
}

.mobile-menu__sublist {
  padding-left: var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-menu__sublink {
  display: block;
  padding: 0.625rem 0;
  font-size: var(--fs-body);
  color: var(--color-text-on-dark-dim);
  font-weight: 500;
}

.mobile-menu__sublink:hover {
  color: var(--color-accent-hover);
}

.mobile-menu__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: auto;
}

.mobile-menu__contact {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-sm) 0;
  color: var(--color-text-on-dark-dim);
  font-size: var(--fs-small);
}

.mobile-menu__contact .icon {
  color: var(--color-accent-hover);
}

.mobile-menu__overlay {
  position: fixed;
  inset: 0;
  background: rgba(10, 22, 40, 0.6);
  backdrop-filter: blur(4px);
  z-index: var(--z-overlay);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.mobile-menu__overlay.is-open {
  opacity: 1;
  visibility: visible;
}

/* ─────────────────────────────────────────────
   Hero (vollflächig, dunkel, Bild-Hintergrund)
   ───────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-dark);
  color: var(--color-text-on-dark);
  overflow: hidden;
  padding-top: var(--header-height);
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(10, 22, 40, 0.45) 0%, rgba(10, 22, 40, 0.85) 80%, var(--color-dark) 100%),
    radial-gradient(circle at 20% 30%, rgba(29, 127, 212, 0.20), transparent 50%);
}

.hero__container {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  align-items: center;
  padding-block: var(--space-2xl) var(--space-xl);
}

.hero__content {
  max-width: 760px;
}

.hero__title {
  font-size: var(--fs-hero);
  line-height: var(--lh-tight);
  letter-spacing: var(--tracking-tight);
  margin-bottom: var(--space-md);
  color: var(--color-text-on-dark);
}

.hero__claim {
  display: inline-block;
  margin-top: var(--space-sm);
  color: var(--color-accent-hover);
  font-family: var(--font-heading);
  font-style: italic;
  font-weight: 500;
}

.hero__subtitle {
  font-size: var(--fs-body-lg);
  line-height: var(--lh-relaxed);
  color: var(--color-text-on-dark-dim);
  max-width: 580px;
  margin-bottom: var(--space-lg);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.hero__trust {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  font-size: var(--fs-small);
  color: var(--color-text-on-dark-dim);
}

.hero__trust-item {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
}

.hero__trust-item .icon {
  color: var(--color-accent-hover);
  width: 18px;
  height: 18px;
}

.hero__scroll {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2xs);
  color: var(--color-text-on-dark-faint);
  font-size: var(--fs-tiny);
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  z-index: 1;
}

.hero__scroll .icon {
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

/* ─────────────────────────────────────────────
   USP-Bar (auf dem Hero unten anschließend, dunkel)
   ───────────────────────────────────────────── */
.usp-bar {
  background: var(--color-dark-alt);
  border-top: 1px solid var(--color-border-on-dark);
  border-bottom: 1px solid var(--color-border-on-dark);
  position: relative;
  z-index: 1;
}

.usp-bar__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

/* ─────────────────────────────────────────────
   Sub-Page Hero (kleiner als Startseiten-Hero)
   ───────────────────────────────────────────── */
.page-hero {
  background: var(--color-dark);
  color: var(--color-text-on-dark);
  padding-top: calc(var(--header-height) + var(--space-xl));
  padding-bottom: var(--space-xl);
  position: relative;
  overflow: hidden;
}

.page-hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.35;
}

.page-hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(10, 22, 40, 0.7) 0%, var(--color-dark) 100%);
}

.page-hero__content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}

.page-hero__breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
  font-size: var(--fs-small);
  color: var(--color-text-on-dark-dim);
  margin-bottom: var(--space-sm);
}

.page-hero__breadcrumb a {
  color: var(--color-text-on-dark-dim);
  transition: color var(--transition-fast);
}

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

.page-hero__breadcrumb .icon {
  width: 14px;
  height: 14px;
}

.page-hero__title {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-sm);
  color: var(--color-text-on-dark);
}

.page-hero__subtitle {
  font-size: var(--fs-body-lg);
  color: var(--color-text-on-dark-dim);
  line-height: var(--lh-relaxed);
}

/* ─────────────────────────────────────────────
   Grids
   ───────────────────────────────────────────── */
.grid {
  display: grid;
  gap: var(--space-lg);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.grid--services {
  grid-template-columns: repeat(4, 1fr);
}

.grid--stats {
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

/* "Warum STS" 3-Spalten Grid */
.grid--features {
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-lg);
}

/* ─────────────────────────────────────────────
   Split-Layout (Text links, Bild rechts oder umgekehrt)
   ───────────────────────────────────────────── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.split--reverse .split__media {
  order: -1;
}

.split__media img {
  width: 100%;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.split__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

/* ─────────────────────────────────────────────
   Kontakt-Sektion: Formular + Info nebeneinander
   ───────────────────────────────────────────── */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-xl);
  align-items: start;
}

.contact-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  box-shadow: var(--shadow-md);
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-lg);
  background: var(--color-dark);
  color: var(--color-text-on-dark);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.contact-info::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--color-accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.contact-info__row {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  position: relative;
  z-index: 1;
}

.contact-info__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(29, 127, 212, 0.16);
  color: var(--color-accent-hover);
  flex-shrink: 0;
}

.contact-info__label {
  display: block;
  font-size: var(--fs-tiny);
  font-weight: 700;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-text-on-dark-faint);
  margin-bottom: 2px;
}

.contact-info__value {
  color: var(--color-text-on-dark);
  font-weight: 500;
  font-size: var(--fs-body);
  line-height: var(--lh-snug);
}

.contact-info__value a {
  color: var(--color-text-on-dark);
}

.contact-info__value a:hover {
  color: var(--color-accent-hover);
}

/* ─────────────────────────────────────────────
   CTA-Banner
   ───────────────────────────────────────────── */
.cta-banner {
  position: relative;
  padding-block: var(--space-2xl);
  background: var(--color-dark);
  color: var(--color-text-on-dark);
  text-align: center;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at 30% 30%, var(--color-accent-glow), transparent 60%),
    radial-gradient(ellipse at 70% 70%, var(--color-accent-glow), transparent 60%);
  pointer-events: none;
}

.cta-banner__content {
  position: relative;
  max-width: 720px;
  margin-inline: auto;
}

.cta-banner__title {
  font-size: var(--fs-h1);
  margin-bottom: var(--space-md);
  color: var(--color-text-on-dark);
}

.cta-banner__subtitle {
  color: var(--color-text-on-dark-dim);
  font-size: var(--fs-body-lg);
  margin-bottom: var(--space-lg);
}

.cta-banner__buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
}

/* ─────────────────────────────────────────────
   Karriere-Teaser (kompakte Sektion)
   ───────────────────────────────────────────── */
.karriere-teaser {
  background: var(--color-bg-alt);
  border-radius: var(--radius-xl);
  padding: var(--space-xl);
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-xl);
  align-items: center;
}

.karriere-teaser__media img {
  width: 100%;
  border-radius: var(--radius-lg);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* ─────────────────────────────────────────────
   Footer
   ───────────────────────────────────────────── */
.footer {
  background: var(--color-dark);
  color: var(--color-text-on-dark);
  padding-block: var(--space-xl) var(--space-md);
  border-top: 1px solid var(--color-border-on-dark);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer__logo {
  height: 48px;
  width: auto;
  display: block;
  align-self: flex-start;       /* verhindert Stretch im Flex-Column */
  max-width: 160px;
  margin-bottom: var(--space-xs);
}

.footer__tagline {
  color: var(--color-text-on-dark-dim);
  font-size: var(--fs-small);
  max-width: 320px;
  line-height: var(--lh-relaxed);
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: 700;
  letter-spacing: var(--tracking-widest);
  text-transform: uppercase;
  color: var(--color-accent-hover);
  margin-bottom: var(--space-md);
}

.footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}

.footer__link {
  color: var(--color-text-on-dark-dim);
  font-size: var(--fs-small);
  transition: color var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2xs);
}

.footer__link:hover {
  color: var(--color-accent-hover);
}

.footer__link .icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border-on-dark);
  color: var(--color-text-on-dark-faint);
  font-size: var(--fs-tiny);
}

.footer__legal-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer__legal-links a {
  color: var(--color-text-on-dark-faint);
}

.footer__legal-links a:hover {
  color: var(--color-accent-hover);
}

.footer__social {
  display: flex;
  gap: var(--space-xs);
}

.footer__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border-on-dark);
  color: var(--color-text-on-dark-dim);
  transition: all var(--transition-fast);
}

.footer__social-link:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}

/* ─────────────────────────────────────────────
   Karriere — Job-Liste
   ───────────────────────────────────────────── */
.job-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.job-card {
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--space-md);
  align-items: center;
  padding: var(--space-md) var(--space-lg);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.job-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.job-card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--color-accent-light);
  color: var(--color-accent);
}

.job-card__title {
  font-size: var(--fs-h4);
  font-weight: 700;
  margin-bottom: 2px;
}

.job-card__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  font-size: var(--fs-small);
  color: var(--color-text-dim);
}

.job-card__meta span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.job-card__meta .icon {
  width: 14px;
  height: 14px;
}

/* ─────────────────────────────────────────────
   Inhalts-Seiten (Impressum, Datenschutz — sehr textlastig)
   ───────────────────────────────────────────── */
.legal-content {
  max-width: 760px;
  margin-inline: auto;
}

.legal-content h2 {
  font-size: var(--fs-h3);
  margin-top: var(--space-xl);
  margin-bottom: var(--space-sm);
}

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

.legal-content h3 {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-xs);
  font-size: var(--fs-h4);
}

.legal-content p {
  margin-bottom: var(--space-sm);
}

.legal-content ul {
  list-style: disc;
  padding-left: var(--space-md);
  margin-bottom: var(--space-sm);
  color: var(--color-text-dim);
}

.legal-content ul li {
  margin-bottom: var(--space-2xs);
}

.legal-content strong {
  color: var(--color-text);
}

/* ─────────────────────────────────────────────
   Leistungs-Detail-Seite: Feature-Liste mit Häkchen
   ───────────────────────────────────────────── */
.feature-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.feature-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  color: var(--color-text);
  line-height: var(--lh-relaxed);
}

.feature-list__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: var(--radius-full);
  background: var(--color-accent-light);
  color: var(--color-accent);
  flex-shrink: 0;
  margin-top: 2px;
}

.feature-list__icon .icon {
  width: 16px;
  height: 16px;
  stroke-width: 2.5;
}