body {
  font-family: 'Open Sans', sans-serif;
  background: #f8f9fa;
  color: #222;
}
.hero {
  background: linear-gradient(120deg, #3a7bd5 0%, #00d2ff 100%);
  color: #fff;
  padding: 4rem 0;
  text-align: center;
  position: relative;
  overflow: visible;
  min-height: 66.67vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(30, 60, 120, 0.18);
  z-index: 0;
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}
.hero .display-4 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 1.2rem;
}
.hero .lead {
  font-size: 1.2rem;
  margin-bottom: 2.5rem;
}
.hero-searchbar {
  margin: 0 auto 2.5rem auto;
  max-width: 500px;
  display: flex;
  align-items: center;
  background: #fff;
  border-radius: 50px;
  box-shadow: 0 4px 24px rgba(58,123,213,0.10);
  padding: 0.5rem 1.5rem;
  position: relative;
}
.hero-searchbar input[type="text"] {
  border: none;
  outline: none;
  flex: 1;
  font-size: 1.2rem;
  padding: 0.75rem 1rem;
  border-radius: 50px;
  background: transparent;
  color: #222;
}
.hero-searchbar button {
  background: linear-gradient(120deg, #3a7bd5 0%, #00d2ff 100%);
  color: #fff;
  border: none;
  border-radius: 50px;
  padding: 0.6rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(58,123,213,0.10);
  transition: background 0.2s;
}
.hero-searchbar button:hover {
  background: linear-gradient(120deg, #00d2ff 0%, #3a7bd5 100%);
}
.section-title {
  font-weight: 700;
  margin-bottom: 1rem;
  color: #3a7bd5;
}
.core10-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
  margin-top: 2rem;
}
.core10-item {
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 2px 8px rgba(0,0,0,0.06);
  padding: 1.5rem;
  text-align: center;
  transition: box-shadow 0.2s;
}
.core10-item:hover {
  box-shadow: 0 4px 16px rgba(58,123,213,0.12);
}
.svg-animated {
  width: 80px;
  height: 80px;
  margin-bottom: 1rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
}
.invite-section {
  background: #e3f2fd;
  border-radius: 16px;
  padding: 2rem;
  margin-top: 2rem;
  text-align: center;
}
.placeholder-img {
  width: 100%;
  height: 180px;
  background: #d1eaff;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #3a7bd5;
  font-size: 1.5rem;
  margin-bottom: 1rem;
}

.hero-footer {
  font-style: italic;
  font-size: 1rem;
  color: #ffffff;
  margin-top: 4rem;
}

.btn,
.btn-group .btn {
  border-radius: 0 !important;
}

/* Search results styling */
#searchResults {
  max-width: 700px;
  margin: 0 auto;
}

#searchResults .alert {
  margin-bottom: 1rem;
  border-radius: 12px;
  border: none;
  box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

#searchResults .alert-danger {
  background: rgba(220, 53, 69, 0.8);
  color: #fff;
  border-left: 4px solid #dc3545;
}

#searchResults .alert-success {
  background: rgba(25, 135, 84, 0.8);
  color: #fff;
  border-left: 4px solid #198754;
}

#searchResults .alert-info {
  background: rgba(13, 202, 240, 0.8);
  color: #fff;
  border-left: 4px solid #0dcaf0;
}

/* Responsive adjustments */
@media (max-width: 768px) {
  .hero {
    padding: 2rem 0;
    min-height: 50vh;
  }
  
  .hero .display-4 {
    font-size: 2.5rem;
  }
  
  .hero .lead {
    font-size: 1.1rem;
  }
}