styles.css

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

body {
  font-family: "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  color: #2d2d2d;
  background-color: #f6fff2; /* Very light green for a fresh feel */
}

/* -------------------------------------
   NAVBAR
------------------------------------- */
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: #ffffff;
  padding: 1rem 2rem;
  box-shadow: 0 2px 6px rgba(0,0,0,0.08);
  position: sticky;
  top: 0;
  z-index: 999;
}

.logo-container {
  display: flex;
  align-items: center;
}

.logo {
  height: 40px;
  width: auto;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1rem;
}

.nav-links li a {
  color: #333;
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.nav-links li a:hover {
  color: #2a9d54; /* accent green */
}

/* -------------------------------------
   HERO SECTION
------------------------------------- */
.hero {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  padding: 2rem;
  background: linear-gradient(120deg, #daf5d1 0%, #f6fff2 100%);
}

.hero-content {
  flex: 1 1 400px;
  padding: 1rem;
}

.hero-content h1 {
  font-size: 3rem;
  color: #2a9d54; /* Bold, earthy green */
  margin-bottom: 1rem;
}

.tagline {
  font-size: 1.5rem;
  margin-bottom: 2rem;
}

.cta-button {
  background-color: #2a9d54;
  color: #fff;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  transition: background 0.3s ease;
}

.cta-button:hover {
  background-color: #227944;
}

.hero-illustration {
  flex: 1 1 300px;
  text-align: center;
  margin-top: 2rem;
}

.hero-illustration img {
  max-width: 500px;
  height: auto;
}

/* -------------------------------------
   FEATURES SECTION
------------------------------------- */
.features {
  background: #ffffff;
  padding: 3rem 2rem;
  text-align: center;
}

.features h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #2a9d54;
}

.feature-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: #fafafa;
  padding: 2rem;
  border-radius: 6px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.feature-card h3 {
  margin-bottom: 1rem;
  color: #333;
}

.feature-card p {
  color: #666;
  line-height: 1.4;
}

/* -------------------------------------
   HOW IT WORKS SECTION
------------------------------------- */
.how-it-works {
  padding: 3rem 2rem;
  background: #edfce7;
  text-align: center;
}

.how-it-works h2 {
  font-size: 2rem;
  margin-bottom: 2rem;
  color: #2a9d54;
}

.how-list {
  max-width: 700px;
  margin: 0 auto;
  text-align: left;
  list-style: decimal inside;
  line-height: 1.8;
  color: #555;
  margin-bottom: 2rem;
}

.how-list li {
  margin-bottom: 1rem;
}

.how-list strong {
  color: #333;
}

.paper-link p {
  margin-top: 1rem;
  font-size: 0.95rem;
  line-height: 1.4;
}

/* -------------------------------------
   OPEN SOURCE SECTION
------------------------------------- */
.open-source {
  padding: 3rem 2rem;
  background: #ffffff;
  text-align: center;
}

.open-source h2 {
  font-size: 2rem;
  color: #2a9d54;
  margin-bottom: 1rem;
}

.open-source p {
  color: #555;
  max-width: 600px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.github-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background-color: #2a9d54;
  color: #fff;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  transition: background 0.3s ease;
}

.github-link:hover {
  background-color: #227944;
}

.github-icon {
  width: 20px;
  height: 20px;
  fill: #fff;
}

/* -------------------------------------
   CONTACT SECTION
------------------------------------- */
.contact {
  background: #ffffff;
  padding: 3rem 2rem;
  text-align: center;
}

.contact h2 {
  font-size: 2rem;
  color: #2a9d54;
  margin-bottom: 1.5rem;
}

.contact-text {
  color: #555;
  max-width: 600px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.contact-button {
  background-color: #2a9d54;
  color: #fff;
  padding: 0.75rem 1.5rem;
  text-decoration: none;
  font-weight: 600;
  border-radius: 4px;
  transition: background 0.3s ease;
}

.contact-button:hover {
  background-color: #227944;
}

/* -------------------------------------
   FOOTER
------------------------------------- */
.footer {
  background: #f6fff2;
  text-align: center;
  padding: 1rem;
  color: #555;
}

/* -------------------------------------
   MEDIA QUERIES
------------------------------------- */
@media (max-width: 768px) {
  .hero {
    flex-direction: column;
  }

  .hero-illustration {
    margin-top: 1rem;
  }
}