body {
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #f5faff;
}

/* Navbar */
.navbar {
  display: flex;
  justify-content: center;
  align-items: center;
  background: #fff;
  padding: 13px 0;
  position: relative;
}

.logo {
  height: 55px;
  margin-right: 45px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 35px;
}

.nav-links a {
  color: #14452F;
  text-decoration: none;
  font-size: 16px;
  font-weight: 500;
}

/* Dropdown */
.dropdown {
  position: relative;
}

.dropdown-content {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: white;
  min-width: 165px;
  display: none;
  flex-direction: column;
  border-radius: 6px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0,0,0,0.18);
  z-index: 9999;
}

.dropdown-content a {
  padding: 12px;
  text-align: center;
  color: #333;
}

.dropdown-content a:hover {
  background: #e9e9e9;
}

.dropdown:hover .dropdown-content {
  display: flex;
}

/* About Grid */
.about-section {
  padding: 60px 6%;
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 35px;
}

.about-box img {
  width: 100%;
  border-radius: 10px;
}

.about-text ul {
  padding-left: 20px;
}

/* Team */
.team-section {
  padding: 60px 0;
  text-align: center;
}

.team-container {
  display: flex;
  justify-content: center;
  gap: 40px;
  flex-wrap: wrap;
}

.team-card img {
  width: 180px;
  height: 180px;
  border-radius: 100%;
  object-fit: cover;
}

.nickname {
  font-style: italic;
  color: #777;
}

/* ===== FOOTER ===== */
.footer {
  background: #fff; /* Xanh đậm sang hơn */
  padding: 60px 0 25px;
  margin-top: 80px;
  color: #14452F;
  font-family: 'Segoe UI', sans-serif;
}

.footer-container {
  max-width: 1250px;
  margin: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 45px;
  justify-content: space-between;
}

.footer-col {
  flex: 1 1 250px;
  min-width: 230px;
}

.footer-logo {
  height: 60px;
  margin-bottom: 18px;
 
}

/* Tiêu đề cột */
.footer h4 {
  margin-bottom: 15px;
  font-size: 18px;
  font-weight: 700;
  color: #14452F;
  border-left: 4px solid #28a745;
  padding-left: 10px;
}

/* Danh sách link */
.footer-col ul {
  color: #14452F;
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin: 8px 0;
}

.footer-col ul li a {
  text-decoration: none;
  color: #14452F;
  transition: 0.2s;
  font-size: 15px;
}

.footer-col ul li a:hover {
  color: #14452F;
  text-decoration: underline;
}

/* Social */
.social-links a {
  margin-right: 12px;
  font-size: 22px;
  color: #14452F;
  transition: 0.2s;
}

.social-links a:hover {
  color: #14452F;
  transform: translateY(-2px);
}

/* Bottom line */
.footer-bottom {
  text-align: center;
  margin-top: 40px;
  padding-top: 15px;
  border-top: 1px solid #2e6d4d;
  font-size: 14px;
  color: #14452F;
}