:root {
  --primary-bg: #e8f4fd;
  --primary-text: #1565c0;
  --primary-dark: #0d47a1;
  --white: #ffffff;
  --light-blue: #e3f2fd;
  --text-dark: #1a1a1a;
  --text-light: #4a4a4a;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background-color: var(--white);
  color: var(--text-dark);
  line-height: 1.8;
  font-size: 18px;
}

h1 {
  font-size: 74px;
  font-weight: 600;
  letter-spacing: -0.9px;
  line-height: 1.1;
  color: var(--text-dark);
  margin-bottom: 32px;
  text-align: left;
}

h2 {
  font-size: 48px;
  font-weight: 600;
  letter-spacing: -0.5px;
  line-height: 1.2;
  color: var(--text-dark);
  margin-bottom: 24px;
  margin-top: 32px;
}

h3 {
  font-size: 28px;
  font-weight: 600;
  letter-spacing: -0.3px;
  color: var(--text-dark);
  margin-bottom: 16px;
  margin-top: 24px;
}

p {
  max-width: 740px;
  margin-bottom: 18px;
  color: var(--text-light);
  line-height: 1.8;
}

a {
  color: var(--primary-text);
  text-decoration: none;
  transition: all 0.3s ease;
}

a:hover {
  color: var(--primary-dark);
  text-decoration: underline;
}

button {
  background-color: var(--primary-text);
  color: var(--white);
  border: none;
  padding: 14px 28px;
  font-size: 17px;
  font-weight: 600;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: inset 0 -2px 4px rgba(0, 0, 0, 0.1);
}

button:hover {
  background: linear-gradient(135deg, var(--primary-text) 0%, var(--primary-dark) 100%);
  transform: translateY(-2px);
  box-shadow: inset 0 -2px 4px rgba(0, 0, 0, 0.15);
}

button:active {
  transform: translateY(0);
}

header {
  position: sticky;
  top: 0;
  background-color: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.06);
  z-index: 1000;
  transition: all 0.3s ease;
}

header.scrolled {
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

nav {
  max-width: 1500px;
  margin: 0 auto;
  padding: 16px 80px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--primary-text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.logo img {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-dark);
  text-decoration: none;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--primary-text);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.container {
  max-width: 1500px;
  margin: 0 auto;
  padding: 0 80px;
}

section {
  padding: 110px 0;
  width: 100%;
  overflow: hidden;
}

section:nth-child(odd) {
  background-color: var(--primary-bg);
}

.hero {
  background-image: url('images/hero.jpg');
  background-size: cover;
  background-position: center;
  position: relative;
  height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  color: var(--white);
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(21, 101, 192, 0.3);
}

.hero .content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.hero h1 {
  font-size: 56px;
  color: var(--white);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.intro, .biochemie-section, .lebensstil-section, .vergleich-section, .faq-section, .hinweis-section, .abschluss-section, .uebersicht-section, .kontakt-section {
  padding: 110px 0;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.two-col.reverse {
  direction: rtl;
}

.two-col.reverse > * {
  direction: ltr;
}

.img-container {
  position: relative;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.img-container img {
  width: 100%;
  height: auto;
  display: block;
  transform: scale(1);
  transition: transform 0.4s ease;
}

.img-container:hover img {
  transform: scale(1.04);
}

table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  margin: 32px 0;
}

thead {
  background-color: var(--primary-text);
  color: var(--white);
}

th {
  padding: 16px;
  text-align: left;
  font-weight: 600;
  font-size: 16px;
}

td {
  padding: 14px 16px;
  border-bottom: 1px solid #e0e0e0;
  font-size: 16px;
}

tbody tr:hover {
  background-color: var(--light-blue);
}

.food-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 40px;
  margin: 48px 0;
}

.food-item {
  background-color: var(--white);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.food-item:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

.food-item img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.food-item-text {
  padding: 24px;
}

.food-item h3 {
  margin: 0 0 12px 0;
  color: var(--primary-text);
}

.food-item p {
  margin: 0;
  font-size: 15px;
  color: var(--text-light);
  line-height: 1.6;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  margin: 48px 0;
}

.comparison-col {
  background-color: var(--white);
  padding: 32px;
  border-radius: 8px;
  border-left: 4px solid var(--primary-text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}

.comparison-col h3 {
  color: var(--primary-text);
  margin-top: 0;
}

.comparison-col ul {
  list-style: none;
  padding: 0;
}

.comparison-col li {
  padding: 10px 0;
  border-bottom: 1px solid #e0e0e0;
  color: var(--text-light);
}

.comparison-col li:last-child {
  border-bottom: none;
}

.faq-item {
  background-color: var(--white);
  border-radius: 8px;
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  overflow: hidden;
}

.faq-header {
  padding: 20px 24px;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background-color: var(--light-blue);
  transition: all 0.3s ease;
  user-select: none;
}

.faq-header:hover {
  background-color: #c9e2f0;
}

.faq-header h3 {
  margin: 0;
  font-size: 18px;
  color: var(--primary-text);
}

.faq-toggle {
  width: 24px;
  height: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--primary-text);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-toggle {
  transform: rotate(180deg);
}

.faq-content {
  display: none;
  padding: 24px;
  background-color: var(--white);
  border-top: 1px solid #e0e0e0;
  color: var(--text-light);
}

.faq-item.active .faq-content {
  display: block;
  animation: slideDown 0.3s ease;
}

@keyframes slideDown {
  from {
    opacity: 0;
    transform: translateY(-10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.disclaimer {
  background-color: var(--light-blue);
  border-left: 4px solid var(--primary-text);
  padding: 24px;
  border-radius: 4px;
  margin: 32px 0;
}

.disclaimer h2 {
  margin-top: 0;
  color: var(--primary-text);
}

.disclaimer p {
  margin: 0;
  color: var(--text-light);
  font-size: 16px;
  line-height: 1.8;
}

.reading-links {
  background-color: var(--white);
  padding: 24px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  margin: 32px 0;
}

.reading-links h3 {
  margin-top: 0;
  color: var(--primary-text);
}

.reading-links ul {
  list-style: none;
  padding: 0;
}

.reading-links li {
  margin-bottom: 12px;
}

.reading-links a {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.reading-links a::after {
  content: '→';
}

form {
  background-color: var(--white);
  padding: 32px;
  border-radius: 8px;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
  max-width: 600px;
  margin: 32px 0;
}

form-group {
  margin-bottom: 24px;
}

form-label {
  display: block;
  margin-bottom: 8px;
  font-weight: 600;
  color: var(--text-dark);
  font-size: 16px;
}

form input[type="text"],
form input[type="email"] {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid #d0d0d0;
  border-radius: 4px;
  font-size: 16px;
  font-family: inherit;
  transition: border-color 0.3s ease;
  background-color: var(--white);
  color: var(--text-dark);
}

form input[type="text"]:focus,
form input[type="email"]:focus {
  outline: none;
  border-color: var(--primary-text);
  box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.1);
}

.form-disclaimer {
  background-color: var(--light-blue);
  border-left: 4px solid var(--primary-text);
  padding: 16px;
  border-radius: 4px;
  margin: 24px 0;
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
}

footer {
  background-color: var(--text-dark);
  color: var(--white);
  padding: 60px 80px;
  margin-top: 110px;
}

footer .container {
  max-width: 1500px;
  margin: 0 auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 60px;
  margin-bottom: 60px;
}

.footer-section h4 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--white);
}

.footer-section p {
  margin-bottom: 10px;
  color: #d0d0d0;
  font-size: 15px;
}

.footer-section a {
  color: #b0b0b0;
  text-decoration: none;
  font-size: 15px;
  display: block;
  margin-bottom: 10px;
  transition: color 0.3s ease;
  cursor: pointer;
}

.footer-section a:hover {
  color: var(--white);
  text-decoration: underline;
}

.footer-bottom {
  border-top: 1px solid #404040;
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-bottom p {
  margin: 0;
  font-size: 14px;
  color: #b0b0b0;
}

.info-banner {
  background-color: var(--light-blue);
  border-radius: 8px;
  padding: 24px;
  text-align: center;
  margin: 32px 0;
  border: 1px solid #a0d4f7;
}

.info-banner p {
  margin: 0;
  font-weight: 600;
  color: var(--primary-text);
  font-size: 16px;
}

.modal {
  display: none;
  position: fixed;
  z-index: 2000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.4);
  animation: fadeIn 0.3s ease;
}

.modal.active {
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-content {
  background-color: var(--white);
  padding: 40px;
  border-radius: 8px;
  max-width: 700px;
  max-height: 80vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
  animation: slideUp 0.3s ease;
}

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

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

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: 28px;
  font-weight: bold;
  color: var(--text-light);
  cursor: pointer;
  transition: color 0.3s ease;
  background: none;
  border: none;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--text-dark);
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--text-dark);
  color: var(--white);
  padding: 24px 80px;
  z-index: 1999;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 40px;
  animation: slideUp 0.4s ease;
  box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.2);
}

.cookie-banner.hidden {
  display: none;
}

.cookie-text {
  flex: 1;
}

.cookie-text p {
  margin: 0;
  font-size: 15px;
  color: var(--white);
  line-height: 1.6;
}

.cookie-actions {
  display: flex;
  gap: 16px;
  flex-shrink: 0;
}

.cookie-actions button {
  padding: 10px 20px;
  font-size: 15px;
  border-radius: 4px;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-weight: 600;
}

.cookie-accept {
  background-color: var(--primary-text);
  color: var(--white);
}

.cookie-accept:hover {
  background-color: var(--primary-dark);
}

.cookie-reject {
  background-color: transparent;
  color: var(--white);
  border: 1px solid var(--white);
}

.cookie-reject:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.cookie-learn {
  background-color: transparent;
  color: var(--white);
  border: 1px solid var(--white);
  cursor: pointer;
}

.cookie-learn:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.success-message {
  display: none;
  background-color: #c8e6c9;
  border-left: 4px solid #4caf50;
  padding: 24px;
  border-radius: 4px;
  margin: 32px 0;
  text-align: center;
  color: #2e7d32;
  font-weight: 600;
  animation: slideDown 0.3s ease;
}

.success-message.active {
  display: block;
}

@media (max-width: 1024px) {
  nav {
    padding: 16px 40px;
  }

  .container {
    padding: 0 40px;
  }

  footer {
    padding: 40px;
  }

  .two-col {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .food-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 16px;
  }

  .cookie-banner {
    padding: 24px 40px;
    flex-direction: column;
    gap: 24px;
    align-items: stretch;
  }

  .cookie-actions {
    flex-direction: column;
  }

  .nav-links {
    gap: 16px;
  }
}

@media (max-width: 768px) {
  h1 {
    font-size: 48px;
  }

  h2 {
    font-size: 36px;
  }

  h3 {
    font-size: 24px;
  }

  nav {
    padding: 12px 28px;
  }

  .container {
    padding: 0 28px;
  }

  section {
    padding: 80px 0;
  }

  .hero {
    height: 400px;
  }

  .hero h1 {
    font-size: 40px;
  }

  .nav-links {
    gap: 12px;
    font-size: 14px;
  }

  footer {
    padding: 32px 28px;
  }

  .cookie-banner {
    padding: 16px 28px;
  }

  .modal-content {
    margin: 20px;
    padding: 24px;
  }

  table {
    font-size: 14px;
  }

  th, td {
    padding: 10px 12px;
  }
}

@media (max-width: 480px) {
  body {
    font-size: 16px;
  }

  h1 {
    font-size: 32px;
  }

  h2 {
    font-size: 28px;
  }

  h3 {
    font-size: 20px;
  }

  nav {
    flex-direction: column;
    gap: 12px;
    padding: 12px 16px;
  }

  .container {
    padding: 0 16px;
  }

  section {
    padding: 60px 0;
  }

  .hero {
    height: 300px;
  }

  .nav-links {
    width: 100%;
    flex-wrap: wrap;
    gap: 8px;
  }

  footer {
    padding: 24px 16px;
  }

  footer .footer-content {
    gap: 24px;
  }

  .cookie-banner {
    padding: 12px 16px;
    bottom: auto;
    top: 0;
  }

  .modal-content {
    padding: 20px;
    margin: 16px;
  }

  form {
    padding: 20px;
  }

  .food-item img {
    height: 200px;
  }
}