*{
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Poppins', sans-serif;
}

body{
  background: #0a3d62;
  color: white;
}

header{
  padding: 20px 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header.sticky {
  position: fixed;
  top: 0;
  width: 100%;
  background: #0a3d62;
  z-index: 1000;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo img {
  height: 45px;
  width: auto;
}

.logo span {
  font-size: 22px;
  font-weight: 600;
}

nav a{
  color: white;
  margin-left: 20px;
  text-decoration: none;
  font-weight: 500;
}

nav a:hover {
  color: #38ada9;
}

.hero{
  height: 80vh;
  background: linear-gradient(rgba(0,0,0,0.5), rgba(0,0,0,0.5)), url('https://images.unsplash.com/photo-1450101499163-c8848c66ca85');
  background-size: cover;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  color: white;
  text-align: center;
}

.hero h2{
  font-size: 40px;
  margin-bottom: 10px;
}

.hero p{
  font-size: 18px;
  margin-bottom: 20px;
}

.btn{
  padding: 10px 20px;
  background: #38ada9;
  color: white;
  border: none;
  border-radius: 25px;
  cursor: pointer;
  font-size: 16px;
}

.services{
  padding: 50px;
  text-align: center;
}

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr); 
  gap: 25px;
  max-width: 1100px;
  margin: auto;
  justify-items: center;
}

.cards .card:last-child {
  grid-column: 3 / 4;
}

.card {
  background: white;
  padding: 25px;
  border-radius: 14px;
  text-align: center;
  transition: 0.3s ease;
  width: 100%;
  max-width: 320px;
}

.card h3 {
  color: #0a3d62;
}

.card p {
  color: #555;
}

.card small {
  color: #777;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 8px 25px rgba(0,0,0,0.15);
}

.companies {
  background: white;
  padding: 60px 20px;
  text-align: center;
}

.companies h2 {
  color: #0a3d62;
  margin-bottom: 40px;
  font-size: 32px;
}

.company-logos {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  max-width: 1200px;
  margin: auto;
  justify-items: center;
}

.company-logos img {
  width: 140px;
  height: 80px;
  object-fit: contain;
  transition: 0.3s;
}

.company-logos img:hover{
  transform: scale(1.08);
  filter: grayscale(0%);
}

.logo-card {
  width: 220px;
  height: 170px;
  background: white;
  border-radius: 14px;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: 0.3s ease;
}

.logo-card:hover {
  transform: translateY(-5px);
}

.logo-card img {
  max-width: 100%;
  max-height: 110px;
  object-fit: contain;
}

.about{
  padding: 50px;
  background: #dff9fb;
  text-align: center;
  color: #333;
}

.contact{
  color: black;
  padding: 50px;
  background: #dff9fb;
  text-align: center;
}

input, textarea{
  width: 100%;
  padding: 10px;
  margin: 10px 0;
  border: 1px solid #ccc;
  border-radius: 5px;
}

footer{
  background: #0a3d62;
  color: white;
  text-align: center;
  padding: 20px;
}

.social-links{
  margin-top: 15px;
}

.social-links a {
  color: white;
  margin: 0 12px;
  font-size: 22px;
  transition: 0.3s;
}

.social-links a:hover{
  color: #38ada9;
}