* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: 'Montserrat', sans-serif;
  background-color: #f9fafb;
  color: #333;
  line-height: 1.6;
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 40px 20px;
}


header {
  background-color: #2c7a7b;
  color: white;
}

nav.container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 25px;
}

nav a {
  color: white;
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s;
}

nav a:hover {
  color: #68d391;
}


#hero {
  text-align: center;
  padding: 80px 20px;
  background: #68d391;
  color: white;
  border-radius: 10px;
  margin-bottom: 50px;
}

#hero h2 {
  font-size: 2.5rem;
  margin-bottom: 15px;
}

#hero p {
  font-size: 1.1rem;
  max-width: 600px;
  margin: 0 auto 25px;
}

.btn {
  background-color: #2c7a7b;
  color: white;
  padding: 12px 28px;
  border-radius: 30px;
  font-weight: 700;
  text-decoration: none;
  transition: background-color 0.3s;
  display: inline-block;
}

.btn:hover {
  background-color: #285e61;
}

.section {
  margin-bottom: 60px;
}

.section h2 {
  color: #2c7a7b;
  margin-bottom: 20px;
  border-bottom: 2px solid #68d391;
  padding-bottom: 6px;
  max-width: max-content;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
  padding: 20px 0;
}

.project-card {
  background: white;
  padding: 25px 30px;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.07);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
  text-align: center;
}

.project-card:hover {
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
  transform: translateY(-8px);
}

.project-card h3 {
  font-size: 1.9rem;
  color: #2c7a7b;
  margin-bottom: 20px;
  font-weight: 700;
}

.project-card p {
  font-size: 1.15rem;
  color: #555;
  margin-bottom: 30px;
  line-height: 1.5;
}

.project-card a.btn {
  background-color: #68d391;
  color: white;
  font-weight: 700;
  padding: 14px 38px;
  border-radius: 30px;
  text-align: center;
  text-decoration: none;
  transition: background-color 0.3s ease;
}

#contact {
  background-color: #68d391;
  color: white;
  padding: 40px 30px;
  border-radius: 20px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
  margin-top: 60px;
  text-align: center;
}

#contact h2 {
  color: white;
  border-bottom: 2px solid white;
  display: inline-block;
  padding-bottom: 6px;
  margin-bottom: 20px;
}

#contact p {
  font-size: 1.1rem;
  margin-bottom: 15px;
}

#contact a {
  color: white;
  font-weight: 600;
  text-decoration: none;
}

#contact a:hover {
  text-decoration: underline;
}

.project-card a.btn,
.project-card a.pdf-btn {
  margin: 6px 8px 0 8px; 
}

.project-card a.pdf-btn {
  background-color: #2c7a7b; 
  border: 2px solid #2c7a7b;
}

.project-card a.pdf-btn:hover {
  background-color: white;
  color: #2c7a7b;
  border-color: #2c7a7b;
}

.project-card .btn + .btn {
  margin-top: 10px;
}

@media (max-width: 600px) {
  .projects-grid {
    grid-template-columns: 1fr;
  }

  .project-card a.btn,
  .project-card a.pdf-btn {
    display: block;
    width: 100%;
    margin: 8px auto;
  }
}
.pdf-btn {
  margin-top: 25px;
  display: inline-block;
}