/* Variablen und Basis-Reset */
:root {
  --font-base: 'Inter', sans-serif;
  --color-bg: #f9f9f9;
  --color-text: #333;
  --color-primary: #004578;
  --color-accent: #ff8c00;
  --spacing: 1rem;
}

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

html, body {
  width: 100%;
  height: 100%;
}

body {
  font-family: var(--font-base);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Header & Navigation */
header {
  background-color: #fff;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: var(--spacing) 0;
}

nav#navigation {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
}

#logo img {
  height: 60px;
}

.flex-navigation-list {
  list-style: none;
  display: flex;
  gap: calc(var(--spacing) * 2);
}

.flex-navigation-list li a {
  font-size: 1rem;
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 600;
}

.flex-navigation-list li a:hover {
  color: var(--color-accent);
}

/* Main Container */
main.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing) 2rem;
}

/* Hero Section */
#hero figure {
  margin-bottom: var(--spacing);
}

#hero img {
  width: 100%;
  height: auto;
  max-height: 300px;
  object-fit: cover;
}

/* Intro Text */
.intro.col-2 {
  max-width: 800px;
  margin: 2rem auto;
  text-align: center;
}

.intro h1 {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.intro p {
  font-size: 1.25rem;
  color: #555;
}

/* Features */
.features {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  justify-content: center;
  margin: 3rem 0;
}

.features article {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  padding: 1.5rem;
  flex: 1 1 300px;
  display: flex;
  flex-direction: column;
}

.features h2 {
  font-size: 1.5rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.features p {
  flex-grow: 1;
  color: #555;
  margin-bottom: 1rem;
}

.features a.link {
  align-self: flex-start;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.features a.link:hover {
  text-decoration: underline;
}

/* Decorative Wave */
.wave figure {
  margin: 3rem 0;
}

.wave img {
  width: 100%;
  height: auto;
  max-height: 200px;
  object-fit: cover;
}

/* Einladung Section */
.invitation {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 800px;
  margin: 2rem auto;
}

.invitation h2 {
  font-size: 2rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.invitation p {
  margin-bottom: 1rem;
  color: #444;
}

.invitation footer em {
  display: block;
  margin-top: 2rem;
  font-style: italic;
}

.invitation a.link {
  display: inline-block;
  margin-top: 1.5rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.invitation a.link:hover {
  text-decoration: underline;
}

/* Contact Section */
.contact {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 600px;
  margin: 2rem auto;
  text-align: center;
}

.contact h2 {
  font-size: 1.75rem;
  margin-bottom: 1rem;
  color: var(--color-primary);
}

.contact p {
  margin-bottom: var(--spacing);
  color: #555;
}

.contact address {
  font-style: normal;
  color: #333;
  line-height: 1.5;
}

/* Footer */
footer.footer {
  background-color: var(--color-primary);
  color: #fff;
  padding: 2rem 0;
}

footer.footer .flex-row {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

footer.footer .flex-item {
  flex: 1 1 300px;
}

/* Footer Links */
footer.footer a {
  color: inherit;
  text-decoration: none;
}

footer.footer a:hover {
  text-decoration: underline;
}

/* Address-Link-Spacing */
footer.footer .flex-item address a {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
}



/* Legal Section */
.legal {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  margin: 2rem auto;
  max-width: 900px;
}

.legal-header h1 {
  font-size: 2.5rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.legal-article h2 {
  font-size: 2rem;
  margin: 2rem 0 1rem;
  color: var(--color-primary);
}

.legal-article h3 {
  font-size: 1.5rem;
  margin-top: 1.5rem;
  color: var(--color-text);
}

.legal-article h4 {
  font-size: 1.2rem;
  margin-top: 1rem;
  color: #555;
}

.legal-article p, .legal-article ul {
  margin-bottom: 1rem;
  color: #444;
  line-height: 1.6;
}

.legal-article ul {
  padding-left: 1.5rem;
  list-style: disc;
}

.legal-article a {
  color: var(--color-accent);
  text-decoration: none;
}

.legal-article a:hover {
  text-decoration: underline;
}


/* donation  */
.donation-section {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 900px;
  margin: 2rem auto;
}

.donation-section h2 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.donation-text {
  margin-bottom: 2rem;
}

.donation-text h3 {
  font-size: 1.5rem;
  margin-bottom: 0.75rem;
  color: var(--color-primary);
}

.donation-text p {
  color: #444;
  line-height: 1.6;
}

.donation-text strong {
  font-weight: 600;
}




.foundation-section {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 1000px;
  margin: 2rem auto;
}

.foundation-section h2 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.foundation-text p {
  color: #444;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.founder-profile {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  align-items: center;
  margin-top: 2rem;
}

.founder-img {
  max-width: 200px;
  border-radius: 8px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

.founder-info h3 {
  font-size: 1.75rem;
  color: var(--color-primary);
  margin-bottom: 0.5rem;
}

.founder-info p {
  margin-bottom: 0.5rem;
  color: #444;
}

.founder-info a {
  color: var(--color-accent);
  text-decoration: none;
  font-weight: 600;
}

.founder-info a:hover {
  text-decoration: underline;
}

.imprint-section {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 800px;
  margin: 2rem auto;
}

.imprint-section h2 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.imprint-entry {
  margin-bottom: 2rem;
}

.imprint-entry h3 {
  font-size: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-primary);
}

.imprint-entry p {
  color: #444;
  line-height: 1.6;
}

.imprint-entry a.link {
  display: inline-block;
  margin-top: 1rem;
  font-weight: 600;
  color: var(--color-accent);
  text-decoration: none;
}

.imprint-entry a.link:hover {
  text-decoration: underline;
}




.mission-section {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 900px;
  margin: 2rem auto;
}

.mission-section h2 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.mission-text p {
  color: #444;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}


.colitis-section {
  background-color: #fff;
  padding: 2rem;
  border-radius: 8px;
  max-width: 900px;
  margin: 2rem auto;
}

.colitis-section h2 {
  font-size: 2.25rem;
  color: var(--color-primary);
  margin-bottom: 1.5rem;
  text-align: center;
}

.colitis-text p {
  color: #444;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}



/* Responsive Anpassungen für mobile Geräte */
@media (max-width: 768px) {
  nav#navigation {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 var(--spacing);
  }

  .flex-navigation-list {
    flex-direction: column;
    gap: var(--spacing);
    width: 100%;
    margin-top: var(--spacing);
  }

  main.container,
  .invitation,
  .contact,
  .legal,
  .donation-section,
  .foundation-section,
  .imprint-section,
  .mission-section,
  .colitis-section {
    padding: 1rem;
  }

  .intro.col-2,
  .invitation,
  .contact,
  .foundation-section,
  .legal,
  .mission-section,
  .colitis-section,
  .imprint-section {
    margin: 1rem auto;
    max-width: 100%;
  }

  .intro h1 {
    font-size: 2rem;
  }

  .intro p,
  .features p,
  .invitation p,
  .contact p,
  .foundation-text p,
  .mission-text p,
  .colitis-text p,
  .legal-article p {
    font-size: 1rem;
  }

  .features {
    flex-direction: column;
    align-items: stretch;
  }

  .founder-profile {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .founder-img {
    max-width: 150px;
  }

  footer.footer .flex-row {
    flex-direction: column;
    align-items: flex-start;
    padding: 0 var(--spacing);
  }

  footer.footer .flex-item {
    flex: 1 1 100%;
  }
  
}