/* =============================================================================
   xilox.de – UI-Relaunch 2026 · layout-public.css (Phase 0)
   -----------------------------------------------------------------------------
   Public-Shell: Topnav (sticky, transparent → dunkel via .scrolled), Hero-Basis,
   Feature-Strip, Network-Cards, Public-Footer.
   ============================================================================= */

/* --- 1. Public-Topnav ---------------------------------------------------------- */
.public-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1030;
  background-color: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color var(--transition-base), border-color var(--transition-base);
}

/* Scroll-State (wird von js/layout.js gesetzt) */
.public-navbar.scrolled,
body:not(.has-hero) .public-navbar {
  background-color: rgba(14, 20, 32, .92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom-color: var(--border);
}

.public-navbar-inner {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  max-width: var(--content-maxwidth);
  margin: 0 auto;
  padding: var(--space-3) var(--space-5);
  min-height: 76px;
}

.public-navbar .navbar-brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
}
.public-navbar .navbar-brand img {
  height: 48px;
  width: auto;
}

.public-nav-links {
  display: none; /* erst ab md */
  align-items: center;
  gap: var(--space-6);
  margin-left: var(--space-5);
}
.public-nav-links a {
  color: var(--text-primary);
  text-decoration: none; /* Bootstrap a:hover-Understrich unterdrücken */
  font-size: .9375rem;
  font-weight: 400;
  transition: color var(--transition-fast);
}
.public-nav-links a:hover {
  color: var(--accent-text);
  text-decoration: none; /* Bootstrap a:hover-Understrich unterdrücken */
}

@media (min-width: 992px) {
  .public-nav-links {
    display: flex;
  }
}

.public-navbar-actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Mobile-Burger */
.public-navbar-toggler {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-input);
  background-color: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
}
.public-navbar-toggler:hover {
  color: var(--accent-text);
  border-color: var(--accent-text);
}

/* Mobile-Menü (Slide-In von rechts; Overlay = .v2-slide-overlay aus layout-app.css,
   da das lokale Bootstrap 4.6.2-Bundle keinen Offcanvas-Plugin enthält) */
@media (max-width: 991.98px) {
  .public-mobile-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    z-index: 1045;
    width: min(80vw, 320px);
    background-color: var(--bg-sidebar);
    border-left: 1px solid var(--border);
    transform: translateX(100%);
    transition: transform .25s ease;
    overflow-y: auto;
    padding: var(--space-4) var(--space-5);
  }
  .public-mobile-menu.show {
    transform: translateX(0);
    box-shadow: var(--shadow-hover);
  }
}
@media (min-width: 992px) {
  .public-mobile-menu {
    display: none !important;
  }
}

.public-mobile-menu .mobile-menu-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border);
  padding-bottom: var(--space-4);
  margin-bottom: var(--space-4);
}
.public-mobile-menu .mobile-close-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: var(--radius-input);
  background-color: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
}
.public-mobile-menu .mobile-close-btn:hover {
  color: var(--text-primary);
  border-color: var(--accent-text);
}

.public-offcanvas .public-nav-links-mobile {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  margin-bottom: var(--space-4);
}
.public-offcanvas .public-nav-links-mobile a {
  display: block;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-input);
  color: var(--text-primary);
  font-size: 1rem;
}
.public-offcanvas .public-nav-links-mobile a:hover,
.public-offcanvas .public-nav-links-mobile a:focus {
  background-color: var(--bg-elevated);
  color: var(--accent-text);
  text-decoration: none; /* Bootstrap a:hover-Understrich unterdrücken */
}
.public-mobile-menu .btn {
  width: 100%;
  margin-bottom: var(--space-2);
}

/* --- 2. Hero (Basis – Seite-spezifisches in css/v2/pages/index.css) -------------- */
.hero {
  position: relative;
  min-height: calc(100vh - 76px);
  display: flex;
  align-items: center;
  background-color: var(--bg-base);
  overflow: hidden;
}

/* Vollbild-BG + Dark-Overlay (Platzhalter designdir/bg.jpg bis echtes Asset) */
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(14, 20, 32, .92) 0%, rgba(19, 26, 38, .78) 45%, rgba(19, 26, 38, .45) 100%);
}

.hero-inner {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--content-maxwidth);
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
}

.hero h1 {
  margin-top: var(--space-4);
  margin-bottom: var(--space-5);
}
.hero .subline {
  max-width: 560px;
  font-size: 1.0625rem;
}

.hero-cta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.video-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-primary);
  font-weight: 500;
}
.video-link .video-play-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(241, 245, 249, .1);
  border: 1px solid var(--border-strong);
  color: var(--text-primary);
  transition: all var(--transition-fast);
}
.video-link:hover .video-play-btn {
  background-color: var(--accent-tint);
  border-color: var(--accent-text);
  color: var(--accent-text);
}

/* --- 3. Feature-Strip (4× Icon + Titel + Sublabel) -------------------------------- */
.feature-strip {
  background-color: rgba(14, 20, 32, .65);
  border-top: 1px solid var(--border);
  backdrop-filter: blur(8px);
}
.feature-strip-inner {
  max-width: var(--content-maxwidth);
  margin: 0 auto;
  padding: var(--space-5) var(--space-5);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}
@media (max-width: 991.98px) {
  .feature-strip-inner {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 575.98px) {
  .feature-strip-inner {
    grid-template-columns: 1fr;
  }
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.feature-item .lucide {
  color: var(--accent-text);
}
.feature-item h3,
.feature-item strong {
  font-size: .9375rem;
  font-weight: 600;
  margin-bottom: 2px;
}
.feature-item span,
.feature-item small {
  display: block;
  color: var(--text-secondary);
  font-size: .8125rem;
  line-height: 1.4;
}

/* --- 4. Network-Cards (Icon-Tile, Titel, Sublabel, Arrow) -------------------------- */
.network-cards {
  max-width: var(--content-maxwidth);
  margin: 0 auto;
  padding: var(--space-8) var(--space-5);
}

.network-card-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
}
@media (max-width: 991.98px) {
  .network-card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (max-width: 575.98px) {
  .network-card-grid {
    grid-template-columns: 1fr;
  }
}

.network-card {
  display: block;
  background-color: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: var(--space-5) var(--space-4);
  text-align: center;
  color: var(--text-primary);
  text-decoration: none; /* Bootstrap a:hover-Understrich unterdrücken */
  transition: background-color var(--transition-fast), transform var(--transition-fast), border-color var(--transition-fast);
}
.network-card:hover {
  background-color: var(--bg-elevated);
  border-color: var(--border-strong);
  transform: translateY(-2px);
  color: var(--text-primary);
  text-decoration: none; /* Bootstrap a:hover-Understrich unterdrücken */
}

.network-card .icon-tile {
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-3);
  border-radius: var(--radius-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--accent-tint);
  color: var(--accent-text);
}

.network-card h3 {
  font-size: .9375rem;
  font-weight: 600;
  margin-bottom: var(--space-1);
}
.network-card p {
  color: var(--text-secondary);
  font-size: .8125rem;
  line-height: 1.45;
  margin-bottom: var(--space-3);
}
.network-card .card-arrow {
  color: var(--accent-text);
  display: inline-flex;
}

/* --- 5. Public-Footer ---------------------------------------------------------------- */
.public-footer {
  background-color: var(--bg-sidebar);
  border-top: 1px solid var(--border);
  margin-top: var(--space-8);
}
.public-footer-inner {
  max-width: var(--content-maxwidth);
  margin: 0 auto;
  padding: var(--space-6) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  flex-wrap: wrap;
}
.public-footer .footer-brand img {
  height: 40px;
  width: auto;
}
.public-footer .footer-tagline {
  color: var(--text-secondary);
  font-size: .875rem;
  margin-top: var(--space-2);
}
.public-footer-links {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
}
.public-footer-links a {
  color: var(--text-secondary);
  font-size: .875rem;
}
.public-footer-links a:hover {
  color: var(--accent-text);
}