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

body {
  font-family: "Segoe UI", Arial, sans-serif;
  color: #1f2933;
  line-height: 1.7;
}

.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

/* HEADER */
.main-header {
  background: #0a1a2f;
  color: #fff;
  position: sticky;
  top: 0;
}

.main-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
}

.logo h1 {
  font-size: 26px;
}

.logo span {
  font-size: 12px;
  color: #ff9800;
}

.main-nav ul {
  list-style: none;
  display: flex;
}

.main-nav ul li {
  margin-left: 25px;
}

.main-nav ul li a {
  color: #fff;
}

.main-nav ul li a.active,
.main-nav ul li a:hover {
  color: #ff9800;
}

/* HERO */
.research-hero {
  background: linear-gradient(
      rgba(10, 26, 47, 0.85),
      rgba(10, 26, 47, 0.85)
    ),
    url("assets/images/research-hero.jpg");
  background-size: cover;
  background-position: center;
  padding: 110px 0;
  color: #fff;
  text-align: center;
}

.research-hero h1 {
  font-size: 46px;
}

/* INTRO */
.research-intro {
  padding: 80px 0;
  text-align: center;
}

.research-intro h2 {
  font-size: 34px;
  margin-bottom: 20px;
}

/* AREAS */
.research-areas {
  background: #f4f6f9;
  padding: 90px 0;
}

.area-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

.area-box {
  background: #fff;
  padding: 35px;
  border-radius: 6px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.08);
}

/* PROGRAMS */
.research-programs {
  padding: 80px 0;
}

.program-list {
  max-width: 700px;
  margin: auto;
}

.program-list li {
  margin-bottom: 12px;
  font-size: 16px;
}

/* CTA */
.research-cta {
  background: linear-gradient(to right, #102f5e, #0a1a2f);
  color: #fff;
  padding: 80px 0;
  text-align: center;
}

.btn-primary {
  display: inline-block;
  margin-top: 25px;
  padding: 14px 34px;
  background: #ff9800;
  color: #fff;
  border-radius: 4px;
}

/* FOOTER */
.main-footer {
  background: #0a1a2f;
  color: #ccc;
  padding-top: 50px;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 30px;
}

.footer-bottom {
  border-top: 1px solid #333;
  margin-top: 30px;
  padding: 20px 0;
  text-align: center;
}