/* Reset & base setup */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: #f4f9ff;
  color: #333;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Navbar uniform styling */
.navbar {
  font-weight: 600;
  letter-spacing: 0.4px;
}

.navbar-brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 1px;
  padding: 12px 0;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  /* Consistent spacing */
  margin-left: auto;
}

.navbar-nav .nav-item {
  margin: 0;
}

.navbar-nav .nav-link {
  color: #fff !important;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.5rem 0.75rem;
  transition: all 0.2s ease-in-out;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: #e6f0ff !important;
  text-shadow: 0 0 6px rgba(255, 255, 255, 0.4);
}

/* Main section */
main {
  flex: 1;
  padding: 60px 0;
}

main h2 {
  font-size: 2.2rem;
  margin-bottom: 2rem;
  font-weight: bold;
}

/* Speaker Cards */
.card {
  border-radius: 15px;
  background: white;
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.08);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.card h5 {
  font-size: 1.25rem;
  margin-top: 0.75rem;
}

.card p {
  font-size: 0.95rem;
  color: #555;
}

.speaker-img {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center;
  /* ✅ FIXED from 'top center' to 'center' */
  background-color: white;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
  display: block;
  margin: auto;
}



/* Footer */
footer.footer {
  background-color: #0a192f;
  color: white;
  text-align: center;
  padding: 12px 0;
  font-size: 0.9rem;
  margin-top: auto;
  border-top: 1px solid #0a192f;
  box-shadow: none;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
  .card {
    margin-bottom: 20px;
  }

  main h2 {
    font-size: 1.75rem;
  }

  .navbar-nav {
    flex-direction: column;
    align-items: center;
    padding-left: 0px;
  }

  .navbar .nav-link {
    width: 100%;
    text-align: center;
  }
}