:root {
  --color-primary: #0a436e;
  --color-accent: #69b42d;
  --color-text: #404F5E;
  --color-bg: #EBF0F5;
  --color-card-bg: #FFFFFF;
  --color-shadow: rgba(200, 208, 216, 0.3);
  --color-icon-bg: #F8FAF5;
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 3rem;
  --spacing-xl: 4rem;
  --border-radius: 0.5rem;
  --border-radius-lg: 1rem;
  --border-radius-circle: 50%;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-md);
  line-height: 1.6;
  position: relative;
}

/* Sprachumschalter */
.language-switcher {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  display: flex;
  gap: var(--spacing-xs);
  background: var(--color-card-bg);
  padding: var(--spacing-xs);
  border-radius: var(--border-radius);
  box-shadow: 0 2px 4px var(--color-shadow);
  z-index: 10;
}

.lang-btn {
  background: transparent;
  border: none;
  padding: var(--spacing-xs) var(--spacing-sm);
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  border-radius: calc(var(--border-radius) - 2px);
  transition: var(--transition);
  font-family: inherit;
}

.lang-btn:hover {
  background: var(--color-bg);
}

.lang-btn.active {
  background: var(--color-primary);
  color: #FFFFFF;
}

.lang-btn:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

main {
  width: 100%;
  max-width: 600px;
  margin: auto;
}

.card {
  background: var(--color-card-bg);
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: 0 4px 6px var(--color-shadow), 0 1px 3px var(--color-shadow);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-md);
  text-align: center;
  animation: fadeInUp 0.6s ease-out;
  transition: var(--transition);
}

.card:hover {
  box-shadow: 0 8px 12px var(--color-shadow), 0 2px 6px var(--color-shadow);
  transform: translateY(-2px);
}

.logo-container {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  animation: fadeIn 0.6s ease-out 0.3s both;
}

.logo {
  max-width: 250px;
  width: 100%;
  height: auto;
  object-fit: contain;
  animation: scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.2s both;
}

.icon-container {
  width: 150px;
  height: 150px;
  border-radius: var(--border-radius-circle);
  background: var(--color-icon-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  margin-bottom: var(--spacing-sm);
  animation: scaleIn 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) 0.4s both;
}

.placeholder-icon {
  width: 70px;
  height: 70px;
  color: var(--color-accent);
  animation: iconFloat 3s ease-in-out infinite;
}

h1 {
  color: var(--color-primary);
  font-weight: 900;
  font-size: clamp(2rem, 5vw, 3.125rem);
  margin: 0;
  animation: fadeIn 0.6s ease-out 0.5s both;
}

.subtitle {
  color: var(--color-text);
  font-size: clamp(1.125rem, 2.5vw, 1.375rem);
  margin: 0;
  font-weight: 500;
  animation: fadeIn 0.6s ease-out 0.6s both;
}

.description {
  color: var(--color-text);
  font-size: clamp(0.875rem, 2vw, 1rem);
  margin: 0;
  opacity: 0.8;
  animation: fadeIn 0.6s ease-out 0.7s both;
}

footer {
  margin-top: var(--spacing-lg);
  text-align: center;
}

.footer-text {
  opacity: 0.5;
  color: var(--color-text);
  font-size: 0.875rem;
  font-style: italic;
  font-family: Georgia, "Times New Roman", serif;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.5);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes iconFloat {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

@media (max-width: 640px) {
  .card {
    padding: var(--spacing-lg);
  }

  .logo {
    max-width: 180px;
  }

  .icon-container {
    width: 120px;
    height: 120px;
  }

  .placeholder-icon {
    width: 56px;
    height: 56px;
  }

  body {
    padding: var(--spacing-sm);
  }

  .language-switcher {
    top: var(--spacing-sm);
    right: var(--spacing-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}