:root {
  --cool-slate: #3d4a5c;
  --fresh-mint: #7ddc9e;
  --goldenrod-yellow: #e8d66f;
  --subtle-plum: #c4a8d8;
  --white: #ffffff;
  --light-gray: #f5f5f5;
  --dark-gray: #333333;
}

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

html, body {
  height: 100%;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: var(--dark-gray);
  background-color: var(--white);
}

body {
  display: flex;
  flex-direction: column;
}

main {
  flex: 1;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  margin-bottom: 1rem;
  color: var(--cool-slate);
}

h1 {
  font-size: 2.5rem;
  font-style: italic;
  font-weight: 700;
  letter-spacing: -1px;
}

h2 {
  font-size: 2rem;
  font-style: italic;
  font-weight: 700;
  margin-top: 2rem;
  margin-bottom: 1.5rem;
}

h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-top: 1.5rem;
}

p {
  line-height: 1.6;
  margin-bottom: 1rem;
  font-size: 1rem;
}

header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: var(--cool-slate);
  color: var(--white);
  z-index: 1000;
  padding: 0.75rem 2rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

header .navbar {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

header .brand {
  font-size: 1.5rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--fresh-mint);
}

header .brand img {
  height: 30px;
  width: 30px;
}

header nav a {
  color: var(--white);
  text-decoration: none;
  margin-left: 2rem;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

header nav a:hover {
  color: var(--fresh-mint);
}

footer {
  background-color: var(--cool-slate);
  color: var(--white);
  padding: 3rem 2rem 1rem;
  margin-top: 3rem;
  font-size: 0.9rem;
}

footer .footer-content {
  max-width: 1000px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

footer h4 {
  color: var(--fresh-mint);
  font-size: 1rem;
  margin-bottom: 1rem;
}

footer a {
  color: var(--light-gray);
  text-decoration: none;
  display: block;
  margin-bottom: 0.5rem;
  transition: color 0.3s ease;
}

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

footer .footer-bottom {
  max-width: 1000px;
  margin: 0 auto;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  padding-top: 1rem;
  text-align: center;
}

footer .disclaimer {
  background-color: var(--fresh-mint);
  color: var(--cool-slate);
  padding: 1rem;
  margin-bottom: 1rem;
  border-radius: 4px;
  font-weight: 600;
  text-align: center;
}

main {
  padding-top: 70px;
}

.section {
  padding: 4rem 2rem;
  max-width: 1000px;
  margin: 0 auto;
}

.section-full {
  width: 100%;
  padding: 4rem 2rem;
}

.hero-section {
  background: linear-gradient(135deg, var(--cool-slate) 0%, rgba(61, 74, 92, 0.9) 100%);
  color: var(--white);
  padding: 8rem 2rem 4rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero-section h1 {
  color: var(--fresh-mint);
  margin-bottom: 1rem;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-section .abstract {
  font-size: 1.1rem;
  line-height: 1.8;
  opacity: 0.95;
}

.hero-image {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 2rem 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.section-image {
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  margin: 1.5rem 0;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
  margin: 2rem 0;
}

.content-grid.reverse {
  direction: rtl;
}

.content-grid.reverse > * {
  direction: ltr;
}

@media (max-width: 768px) {
  .content-grid {
    grid-template-columns: 1fr;
  }

  .content-grid.reverse {
    direction: ltr;
  }

  h1 {
    font-size: 1.75rem;
  }

  h2 {
    font-size: 1.5rem;
  }

  header nav a {
    margin-left: 1rem;
    font-size: 0.85rem;
  }
}

.list-items {
  list-style: none;
  margin: 1.5rem 0;
}

.list-items li {
  padding: 0.75rem 0 0.75rem 1.5rem;
  position: relative;
  margin-bottom: 0.5rem;
}

.list-items li:before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--fresh-mint);
  font-weight: bold;
  font-size: 1.2rem;
}

.card {
  background-color: var(--light-gray);
  padding: 1.5rem;
  border-radius: 4px;
  border-left: 4px solid var(--fresh-mint);
  margin: 1rem 0;
}

.card h3 {
  margin-top: 0;
}

.button {
  display: inline-block;
  background-color: var(--cool-slate);
  color: var(--white);
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.button:hover {
  background-color: var(--fresh-mint);
  color: var(--cool-slate);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.button.secondary {
  background-color: var(--fresh-mint);
  color: var(--cool-slate);
}

.button.secondary:hover {
  background-color: var(--cool-slate);
  color: var(--fresh-mint);
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  color: var(--cool-slate);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid #ddd;
  border-radius: 4px;
  font-size: 1rem;
  font-family: inherit;
  transition: border-color 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--fresh-mint);
  box-shadow: 0 0 0 3px rgba(125, 220, 158, 0.1);
}

.form-disclaimer {
  background-color: var(--fresh-mint);
  color: var(--cool-slate);
  padding: 1rem;
  border-radius: 4px;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background-color: var(--cool-slate);
  color: var(--white);
  padding: 1.5rem 2rem;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
  z-index: 999;
  display: none;
}

.cookie-banner.show {
  display: block;
  animation: slideUp 0.3s ease;
}

@keyframes slideUp {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}

.cookie-banner-content {
  max-width: 1000px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.cookie-banner-text {
  flex: 1;
  font-size: 0.95rem;
}

.cookie-banner-buttons {
  display: flex;
  gap: 0.75rem;
  flex-shrink: 0;
}

.cookie-banner button {
  padding: 0.5rem 1rem;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.3s ease;
}

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

.cookie-banner .btn-accept:hover {
  opacity: 0.9;
}

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

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

.cookie-banner .btn-policy {
  background-color: transparent;
  color: var(--fresh-mint);
  border: none;
  text-decoration: underline;
  padding: 0;
}

.cookie-banner .btn-policy:hover {
  opacity: 0.8;
}

@media (max-width: 768px) {
  .cookie-banner-content {
    flex-direction: column;
    align-items: flex-start;
  }

  .cookie-banner-buttons {
    width: 100%;
    flex-direction: column;
  }

  .cookie-banner button {
    width: 100%;
  }
}

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

.catalog-item {
  background-color: var(--light-gray);
  border-radius: 4px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
}

.catalog-item:hover {
  transform: translateY(-4px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15);
}

.catalog-item img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.catalog-item-content {
  padding: 1.5rem;
}

.catalog-item h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.catalog-item-description {
  font-size: 0.95rem;
  margin-bottom: 1rem;
  line-height: 1.5;
}

.catalog-item-traits {
  list-style: none;
  margin: 1rem 0;
}

.catalog-item-traits li {
  padding: 0.4rem 0 0.4rem 1.2rem;
  position: relative;
  font-size: 0.9rem;
}

.catalog-item-traits li:before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--fresh-mint);
  font-weight: bold;
}

.catalog-item-button {
  display: inline-block;
  background-color: var(--cool-slate);
  color: var(--white);
  padding: 0.6rem 1.2rem;
  text-decoration: none;
  border-radius: 4px;
  font-weight: 600;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
}

.catalog-item-button:hover {
  background-color: var(--fresh-mint);
  color: var(--cool-slate);
}

.thank-you-message {
  text-align: center;
  padding: 4rem 2rem;
}

.thank-you-message h1 {
  color: var(--fresh-mint);
  margin-bottom: 1.5rem;
}

.thank-you-message p {
  font-size: 1.1rem;
  margin-bottom: 2rem;
}

.policy-section {
  margin: 2rem 0;
  padding: 1.5rem;
  background-color: var(--light-gray);
  border-radius: 4px;
}

.policy-section h3 {
  margin-top: 0;
  color: var(--cool-slate);
}

.policy-section ul {
  margin-left: 1.5rem;
}

.policy-section li {
  margin-bottom: 0.5rem;
}