body {
  margin: 0;
  font-family: 'Source Sans 3', sans-serif;
  color: #667b68;
  background-color: #fff;
}

h1, h2, h3 {
  color: #667b68;
  margin-bottom: 1rem;
}

h1 { font-size: 3rem; }
h2 { font-size: 2.8rem; font-weight: 700; }
p { font-size: 1.5rem; line-height: 1.6; }

/* Navbar */
header { background: #fff; border-bottom: 1px solid #e9ebe8; }
.navbar { display: flex; justify-content: space-between; align-items: center; padding: 1rem 2rem; }
.logo { height: 200px; }
.nav-links { list-style: none; display: flex; gap: 1.5rem; }
.nav-links li a { text-decoration: none; color: #667b68; font-weight: 600; }
.menu-toggle { display: none; cursor: pointer; font-size: 1.8rem; }

/* Hero */
.hero-container {
  position: relative;
  width: 100%;
  height: 50vh;
  overflow: hidden;
}
.hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero-overlay {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: #fff;
  width: 90%;
}
.hero-overlay h1 {
  font-size: 3rem;
  font-weight: 700;
  color: #fff;
}
.hero-text { padding: 2rem; text-align: center; max-width: 900px; margin: 0 auto; }

/* Sections */
section { padding: 3rem 1rem; text-align: center; }
section p { max-width: 900px; margin: 0 auto; }

/* Our Science */
.science-section { background: #e9ebe8; padding: 3rem 1rem; }
.science-content { display: flex; align-items: center; justify-content: space-between; max-width: 1200px; margin: 0 auto; gap: 2rem; }
.science-text { flex: 3; text-align: left; }
.science-image { flex: 1; }
.science-image img { width: 100%; border-radius: 8px; object-fit: cover; }

/* Team */
.team-tabs { margin-bottom: 2rem; }
.tab-button { background: #c4a656; color: #fff; border: none; padding: 0.7rem 1.2rem; margin: 0 0.5rem; border-radius: 8px; cursor: pointer; font-weight: 600; }
.tab-button.active { background: #667b68; }
.team-panel { display: none; flex-wrap: wrap; justify-content: center; gap: 2rem; }
.team-panel.active { display: flex; }
.member-card { background: #e9ebe8; padding: 1.5rem; border-radius: 12px; width: 220px; text-align: center; }
.member-card img { width: 120px; height: 120px; border-radius: 50%; object-fit: cover; margin-bottom: 1rem; }
.member-name { margin: 0.5rem 0; font-size: 1.2rem; font-weight: 700; color: #000; }
.member-card span { font-size: 1rem; color: #333; }

/* LinkedIn Icon */
.linkedin-icon {
  display: block;          /* fuerza que quede en una nueva línea */
  margin-top: 0.5rem;      /* separa un poco del texto de rol */
}

.linkedin-icon img {
  width: 20px;
  height: 20px;
  transition: transform 0.2s;
}

.linkedin-icon img:hover {
  transform: scale(1.2);
}

/* Partners */
#partners { padding: 3rem 1rem; text-align: center; }
.partners-logos img { max-height: 65px; margin: 1rem; }

/* Contact */
#contact { background: #e9ebe8; padding: 3rem 1rem; }
.contact-form { max-width: 600px; margin: 0 auto; display: flex; flex-direction: column; gap: 1rem; }
.contact-form input, .contact-form select, .contact-form textarea {
  padding: 0.8rem; border: 1px solid #ccc; border-radius: 8px; font-family: inherit; font-size: 1rem;
}
.contact-form button { background: #c4a656; color: #fff; border: none; padding: 0.9rem; border-radius: 8px; font-weight: 600; cursor: pointer; }
.contact-form button:hover { background: #a68b40; }

/* Responsive */
@media (max-width: 768px) {
  h1 { font-size: 2rem; }
  h2 { font-size: 2rem; }
  p { font-size: 1.1rem; }

  /* Mobile Navbar */
  .nav-links { 
    display: none; 
    flex-direction: column; 
    gap: 1rem; 
    background: #fff; 
    position: fixed; 
    top: 70px; 
    right: 0; 
    left: 0; 
    padding: 1.5rem; 
    border-top: 1px solid #ccc; 
    z-index: 999;
  }
  .nav-links.show { display: flex; }
  .menu-toggle { display: block; }
  .hero-overlay h1 { font-size: 1.8rem; }

  .science-content { flex-direction: column; text-align: center; }
  .science-text { text-align: center; }
  .science-image { width: 100%; }
}