/* Critical CSS nutzt zentrale Variablen aus variables.css */
/* Zusätzliche kritische Variablen falls nötig */
:root {
  --initial-background-image: url('/img/background.webp');
}
/* SCHRITT4B: mobil kleineres Hintergrundbild (800px, ~36 KB statt 196 KB) */
@media (max-width: 768px) {
  html:root { /* html:root schlaegt :root in styles.css */
    --initial-background-image: url('/img/background-mobile.webp');
  }
}
/* SCHRITT4B: <picture> um das Hero-Bild (Schritt 4) brach height:100% -> Bild fuellt die Hero-Box wieder (wie vor WebP) */
.hero-section > picture {
  display: block;
  width: 100%;
  height: 100%;
}

html {
  overflow-x: hidden;
}

body {
  font-family: var(--font-primary);
  background-image: var(--initial-background-image);
  background-size: cover;
  background-attachment: fixed;
  background-position: center;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
}

/* iOS unterstützt background-attachment:fixed nicht → auf scroll zurückfallen */
@supports (-webkit-touch-callout: none) {
  body {
    background-attachment: scroll;
  }
}

/* SCHRITT4: fixed bg is costly on mobile */
@media (max-width: 1024px), (hover: none) {
  body {
    background-attachment: scroll;
  }
}


.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--container-padding);
  padding-right: var(--container-padding);
}

@media (min-width: 1536px) {
  .container {
    max-width: 1440px;
  }
}

.content-card {
  /* Fallback für Browser ohne backdrop-filter */
  background-color: rgba(255, 255, 255, 0.98);
  background-color: var(--bg-card);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  margin-bottom: var(--spacing-lg);
  box-shadow: var(--card-shadow);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.section-heading {
  font-size: clamp(1.125rem, 4vw, var(--text-2xl));
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  color: var(--black); /* Fix: Immer dunkel da Hintergrund weiß ist */
  padding: var(--spacing-sm);
  background-color: var(--white);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary-color);
  box-shadow: var(--shadow-sm);
}

h1, h2, h3 {
  font-weight: 700;
  line-height: var(--leading-tight);
  margin-bottom: var(--spacing-sm);
  color: var(--text-primary);
}

h1 {
  font-size: clamp(1.5rem, 5vw, var(--text-4xl));
}

h2 {
  font-size: clamp(1.25rem, 4vw, var(--text-3xl));
}

h3 {
  font-size: clamp(1.125rem, 3vw, var(--text-2xl));
}

p {
  font-size: clamp(0.875rem, 3vw, var(--text-base));
  line-height: var(--leading-normal);
  margin-bottom: var(--spacing-md);
  color: var(--text-secondary);
}

/* Navigation Styles */
nav {
  background-color: rgba(255, 255, 255, 0.98);
  background-color: rgba(255, 255, 255, 0.95);
}

/* Logo Styles */
.logo-img {
  height: 32px !important;
  width: auto !important;
  max-height: 32px !important;
  max-width: 150px !important;
  object-fit: contain !important;
}

@media (max-width: 640px) {
  .logo-img {
    height: 28px !important;
    max-height: 28px !important;
    max-width: 120px !important;
  }
}

.text-primary {
  color: var(--primary-color);
}

/* Verbesserte Touch-Ziele für mobile Geräte */
.nav-link, button, .touch-target {
  min-height: var(--touch-target-size);
  min-width: var(--touch-target-size);
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Responsive Grundlagen */
@media (max-width: 640px) {
  .container {
    padding-left: 0.75rem;
    padding-right: 0.75rem;
  }
  
  .content-card {
    padding: 1rem;
    border-radius: 0.5rem;
  }
}

/* Optimierung für kleine Smartphones (iPhone 14, gängige Android) */
@media (max-width: 390px) {
  .container {
    padding-left: 0.625rem;
    padding-right: 0.625rem;
  }

  .content-card {
    padding: 0.875rem;
  }

  .section-heading {
    font-size: 1rem;
  }
}

/* Optimierung für sehr kleine Bildschirme */
@media (max-width: 320px) {
  .container {
    padding-left: 0.5rem;
    padding-right: 0.5rem;
  }
  
  .content-card {
    padding: 0.75rem;
    margin-bottom: 1rem;
  }
  
  .hidden-xs {
    display: none;
  }
}

/* Verbesserte Barrierefreiheit */
:focus {
  outline: 2px solid var(--primary-color);
  outline-offset: 2px;
}

/* Reduzierte Bewegung für Benutzer, die dies bevorzugen */
@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}