/* RESET / BASE STYLES (optional) */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html, body {
  font-family: 'Montserrat', sans-serif;
  background-color: #121212;
  color: #fff;
}

/* REUSABLE CONTAINER */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

/* HEADER / NAV */
.header {
  background-color: #1e1e1e;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 0;
}

.brand {
  font-size: 1.25rem;
  font-weight: 600;
  color: #fff;
  text-decoration: none;
}

.nav-menu {
  list-style-type: none;
  display: flex;
  gap: 1.5rem;
}

.nav-menu a {
  color: #aaa;
  text-decoration: none;
  transition: color 0.3s;
}

.nav-menu a:hover {
  color: #fff;
}

/* Highlight the active link if desired */
.nav-menu .active {
  color: #fff;
  font-weight: 600;
}

/* RESEARCH SECTION */
.research-section {
  padding: 3rem 0;
  text-align: center;
}

.research-section h1 {
  font-size: 2rem;
  margin-bottom: 1rem;
  font-weight: 600;
}

.research-section p {
  color: #ccc;
  margin: 0 auto 2rem;
  max-width: 700px;
  line-height: 1.4;
}

.research-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 2rem;
}

.research-category {
  background-color: #1a1a1a;
  padding: 2rem;
  border-radius: 8px;
  text-align: left;
}

.research-category h2 {
  margin-bottom: 1rem;
  font-weight: 600;
}

.research-category p {
  color: #ccc;
  line-height: 1.4;
}

/* FOOTER */
.footer {
  background-color: #1e1e1e;
  padding: 2rem 0;
  text-align: center;
}

.footer-content p {
  color: #777;
  margin-bottom: 0.5rem;
}

.small-text {
  font-size: 0.9rem;
  color: #aaa;
}