* {
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  margin: 0;
  padding: 0;
  background-color: #f9f9f9;
  color: #333;
  line-height: 1.6;
}

/* --- NAVBAR & MENU HAMBURGUESA --- */
nav {
  background-color: #00694e;
  padding: 1rem 2rem;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: nowrap;
  min-height: 70px;
}

.nav-logo {
  font-size: 1.5rem;
  font-weight: bold;
  color: white;
  text-decoration: none;
  letter-spacing: 1px;
  white-space: nowrap;
}

/* Estilos del botón hamburguesa (Oculto por defecto en PC) */
.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 2rem;
  color: white;
  cursor: pointer;
  padding: 0;
}

/* Lista de enlaces */
.nav-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 20px;
  height: 100%;
  align-items: center;
}

.nav-links li a {
  text-decoration: none;
  color: white;
  font-weight: 500;
  font-size: 1.1rem;
  transition: color 0.3s;
  white-space: nowrap;
}

.nav-links li a:hover,
.nav-logo:hover {
  color: #d6d2c4;
}

/* --- VISTA MÓVIL (Celulares y Tablets pequeñas) --- */
@media (max-width: 768px) {
  nav {
    padding: 1rem;
    height: auto;
    flex-wrap: wrap;
  }

  /* 1. Mostrar el botón hamburguesa */
  .menu-toggle {
    display: block;
  }

  /* 2. Ocultar la lista de enlaces por defecto */
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    text-align: center;
    margin-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 15px;
  }

  .nav-links.active {
    display: flex;
  }

  .nav-links li {
    margin: 10px 0;
  }
}

/* --- CONTENEDOR PRINCIPAL --- */
.container {
  max-width: 1000px;
  margin: 40px auto;
  padding: 20px;
  background: white;
  min-height: 80vh;
  box-shadow: 0 0 15px rgba(0, 0, 0, 0.05);
}

/* --- PERFIL (HOME) --- */
.profile-header {
  display: flex;
  gap: 40px;
  align-items: flex-start;
  padding-bottom: 20px;
  margin-bottom: 25px;
  border-bottom: 1px solid #eee;
}

.profile-img {
  width: 300px;
  height: 400px;
  object-fit: cover;
  border-radius: 5px;
  border: 3px solid #00694e;
  flex-shrink: 0;
}

.profile-info h3 {
  margin-top: 0;
  color: #00694e;
}

.cv-link a {
  text-decoration: none;
  color: #333;
  font-weight: bold;
}

/* --- RESPONSIVIDAD DEL PERFIL --- */
@media (max-width: 768px) {
  .profile-header {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .profile-img {
    width: 250px;
    height: 250px;
    margin-bottom: 20px;
  }

  .profile-info {
    width: 100%;
  }

  .container {
    padding: 20px;
    margin: 20px auto;
  }
}

/* --- TIPOGRAFÍA Y TEXTOS --- */
h1 {
  color: #00694e;
  margin-top: 0;
  font-size: 2rem;
}

@media (max-width: 600px) {
  h1 {
    font-size: 1.7rem;
    text-align: center;
  }
}

h2 {
  color: #333;
  border-bottom: 1px solid #ddd;
  padding-bottom: 10px;
  margin-top: 30px;
}

p {
  font-size: 16px;
  margin-bottom: 1rem;
}

/* --- PUBLICACIONES --- */
.pub-item {
  margin-bottom: 20px;
  padding-bottom: 15px;
  border-bottom: 1px solid #eee;
}
.pub-title {
  font-weight: bold;
  font-size: 1.1rem;
  color: #00694e;
}
.pub-authors {
  font-style: italic;
  color: #555;
}
.pub-venue {
  color: #666;
}

.pub-link {
  color: #00694e;
  text-decoration: none;
}

#publications-list {
  margin-top: 30px;
}

/* --- MEMBERS / TEAM --- */
.team-list {
  display: flex;
  flex-direction: column;
  gap: 30px;
  margin-top: 30px;
}

.member-card {
  display: flex;
  gap: 30px;
  padding-bottom: 30px;
  border-bottom: 1px solid #eee;
  align-items: flex-start;
}

.member-card:last-child {
  border-bottom: none;
}

.member-photo {
  width: 150px;
  height: 150px;
  object-fit: cover;
  border-radius: 5px;
  border: 2px solid #00694e;
  flex-shrink: 0;
}

.member-info h3 {
  margin-top: 0;
  color: #00694e;
  margin-bottom: 5px;
}

.member-role {
  font-weight: bold;
  color: #555;
  margin: 0 0 5px 0;
}

.member-email a {
  color: #00694e;
  text-decoration: none;
}

/* Responsividad de Miembros */
@media (max-width: 600px) {
  .member-card {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }
}

/* --- RESEARCH PAGE --- */
.research-text {
  font-size: 1.1rem;
  text-align: justify;
  margin-bottom: 20px;
}

/* En celular, quitar justificado para evitar ríos de blanco */
@media (max-width: 600px) {
  .research-text {
    text-align: left;
  }
}

.diagram-container {
  text-align: center;
  margin: 40px 0;
}

.research-diagram {
  width: 100%;
  max-width: 800px;
  height: auto; /* IMPORTANTE: Mantiene la proporción al reducirse */
  border: none;
  margin-bottom: 10px;
}

.caption {
  font-size: 0.9rem;
  color: #666;
  font-style: italic;
  margin-top: 5px;
}

/* --- FOOTER --- */
footer {
  text-align: center;
  padding: 20px;
  background-color: #333;
  color: white;
  font-size: 0.9rem;
  margin-top: 40px;
}