@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Bitter:wght@400;500;600;700;800&display=swap');

:root {
  --color-slate: #4A5568;
  --color-mint: #A7E6D7;
  --color-cream: #FDFBF7;
  --color-copper: #A67C52;
  --color-white: #FFFFFF;
  --color-black: #000000;
  --color-light-gray: #F5F5F5;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Bitter', serif;
  font-size: 1.18rem;
  line-height: 1.9;
  color: var(--color-slate);
  background-color: var(--color-white);
}

.font-sans {
  font-family: 'Inter', sans-serif;
}

.font-serif {
  font-family: 'Bitter', serif;
}

h1 {
  font-family: 'Inter', sans-serif;
  font-size: 4.375rem;
  font-weight: 800;
  letter-spacing: -1.2px;
  line-height: 1.2;
  margin-bottom: 1.5rem;
  color: var(--color-slate);
}

h2 {
  font-family: 'Inter', sans-serif;
  font-size: 2.75rem;
  font-weight: 600;
  margin: 3rem 0 1.5rem 0;
  color: var(--color-slate);
}

h3 {
  font-family: 'Inter', sans-serif;
  font-size: 1.875rem;
  font-weight: 500;
  margin: 2rem 0 1rem 0;
  color: var(--color-slate);
}

p {
  margin-bottom: 1.5rem;
  text-align: justify;
}

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

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

.key-term {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: var(--color-mint);
}

header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: var(--color-white);
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
  transition: all 0.3s ease;
}

header.scrolled {
  background-color: rgba(255, 251, 247, 0.95);
  backdrop-filter: blur(10px);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 6vw;
  max-width: 1540px;
  margin: 0 auto;
}

.logo {
  font-family: 'Inter', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-slate);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.logo img {
  width: 36px;
  height: 36px;
  object-fit: contain;
}

nav {
  display: flex;
  gap: 2rem;
  align-items: center;
}

nav a {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  color: var(--color-slate);
  position: relative;
  padding-bottom: 0.25rem;
}

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

nav a:hover:after {
  width: 100%;
}

main {
  max-width: 1540px;
  margin: 0 auto;
  padding: 0 8vw 0 6vw;
}

section {
  padding: 140px 0;
  border-bottom: 1px solid rgba(166, 124, 82, 0.2);
}

section:nth-child(even) {
  background: linear-gradient(135deg, var(--color-cream) 0%, rgba(167, 230, 215, 0.1) 100%);
}

.container {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 2rem;
  align-items: center;
}

.content-7col {
  grid-column: span 7;
}

.visual-5col {
  grid-column: span 5;
}

.content-full {
  grid-column: span 12;
}

.content-6col {
  grid-column: span 6;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

img.small {
  max-width: 70%;
}

.research-card {
  background: var(--color-white);
  border: 2px solid rgba(167, 230, 215, 0.3);
  border-radius: 12px;
  padding: 2rem;
  margin: 1.5rem 0;
  transition: all 0.3s ease;
  cursor: pointer;
}

.research-card:hover {
  border-color: var(--color-mint);
  transform: scale(1.025);
  box-shadow: 0 15px 40px rgba(167, 230, 215, 0.3);
}

.research-card h3 {
  color: var(--color-slate);
  margin-top: 0;
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  margin: 2rem 0;
  background: var(--color-white);
}

.comparison-table th {
  background-color: var(--color-slate);
  color: var(--color-white);
  padding: 1rem;
  text-align: left;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
}

.comparison-table td {
  padding: 1rem;
  border-bottom: 1px solid rgba(166, 124, 82, 0.1);
}

.comparison-table tr:hover {
  background-color: rgba(167, 230, 215, 0.1);
}

.faq-item {
  margin: 2rem 0;
  border-left: 4px solid var(--color-copper);
  padding-left: 1.5rem;
}

.faq-item h4 {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: var(--color-slate);
  margin-bottom: 0.75rem;
  cursor: pointer;
  user-select: none;
}

.faq-item p {
  display: none;
  margin-bottom: 0;
}

.faq-item.active p {
  display: block;
}

.cta-button {
  display: inline-block;
  background: linear-gradient(135deg, var(--color-cream) 0%, var(--color-mint) 100%);
  color: var(--color-slate);
  padding: 1rem 2.5rem;
  border-radius: 8px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  margin: 1rem 0;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 25px rgba(167, 230, 215, 0.4);
}

footer {
  background-color: var(--color-slate);
  color: var(--color-white);
  padding: 3rem 6vw;
  margin-top: 140px;
}

.footer-content {
  max-width: 1540px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 3rem;
  margin-bottom: 2rem;
}

.footer-section h3 {
  color: var(--color-mint);
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: 1.25rem;
}

.footer-section a {
  display: block;
  margin-bottom: 0.75rem;
  color: var(--color-cream);
}

.footer-section a:hover {
  color: var(--color-mint);
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 2rem;
  text-align: center;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
}

.disclaimer {
  background-color: rgba(167, 230, 215, 0.15);
  border-left: 4px solid var(--color-mint);
  padding: 1.5rem;
  margin: 2rem 0;
  border-radius: 6px;
}

.disclaimer p {
  margin-bottom: 0.5rem;
}

.disclaimer strong {
  color: var(--color-slate);
}

.contact-form {
  max-width: 600px;
  margin: 2rem 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  color: var(--color-slate);
  margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid rgba(74, 85, 104, 0.2);
  border-radius: 6px;
  font-family: 'Bitter', serif;
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-mint);
  box-shadow: 0 0 0 3px rgba(167, 230, 215, 0.1);
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  margin: 2rem 0;
}

.blog-card {
  background: var(--color-white);
  border: 2px solid rgba(167, 230, 215, 0.3);
  border-radius: 12px;
  overflow: hidden;
  transition: all 0.3s ease;
}

.blog-card:hover {
  border-color: var(--color-mint);
  transform: translateY(-5px);
  box-shadow: 0 15px 40px rgba(167, 230, 215, 0.25);
}

.blog-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin: 0;
  border-radius: 0;
  box-shadow: none;
}

.blog-card-content {
  padding: 1.5rem;
}

.blog-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: 1.25rem;
}

.blog-card p {
  font-size: 0.95rem;
  margin-bottom: 1rem;
}

.blog-card a {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  right: 0;
  left: 0;
  background-color: var(--color-slate);
  color: var(--color-white);
  padding: 1.5rem 2rem;
  z-index: 2000;
  display: none;
  box-shadow: 0 -5px 20px rgba(0,0,0,0.2);
}

.cookie-banner.show {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 2rem;
}

.cookie-message {
  flex: 1;
}

.cookie-message p {
  margin-bottom: 0;
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
}

.cookie-message a {
  color: var(--color-mint);
}

.cookie-buttons {
  display: flex;
  gap: 1rem;
  white-space: nowrap;
}

.cookie-btn {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 6px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.cookie-btn.accept {
  background-color: var(--color-mint);
  color: var(--color-slate);
}

.cookie-btn.accept:hover {
  background-color: #8ed9c4;
}

.cookie-btn.reject {
  background-color: transparent;
  color: var(--color-mint);
  border: 2px solid var(--color-mint);
}

.cookie-btn.reject:hover {
  background-color: rgba(167, 230, 215, 0.1);
}

@media (max-width: 1024px) {
  .container {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .content-7col {
    grid-column: span 2;
  }
  
  .visual-5col {
    grid-column: span 2;
  }
  
  .footer-content {
    grid-template-columns: repeat(2, 1fr);
  }
  
  h1 {
    font-size: 3rem;
  }
  
  h2 {
    font-size: 2rem;
  }
  
  nav {
    gap: 1.5rem;
  }
}

@media (max-width: 768px) {
  .container {
    grid-template-columns: 1fr;
  }
  
  .content-7col,
  .visual-5col,
  .content-6col {
    grid-column: span 1;
  }
  
  .header-content {
    padding: 1rem 4vw;
  }
  
  main {
    padding: 0 4vw;
  }
  
  section {
    padding: 80px 0;
  }
  
  h1 {
    font-size: 2rem;
  }
  
  h2 {
    font-size: 1.5rem;
  }
  
  h3 {
    font-size: 1.25rem;
  }
  
  body {
    font-size: 1rem;
    line-height: 1.6;
  }
  
  nav {
    gap: 1rem;
    font-size: 0.9rem;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
  }
  
  .cookie-banner.show {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  
  .cookie-buttons {
    width: 100%;
  }
  
  .cookie-btn {
    flex: 1;
  }
  
  img.small {
    max-width: 100%;
  }
}