body {
  margin: 0;
  font-family: 'Segoe UI', Arial, sans-serif;
  background: #f7faff;
  color: #333;
}

.hero {
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #9ed2ff 0%, #f7faff 100%);
  text-align: center;
  padding: 20px;
}

.hero .logo {
  width: 220px;
  margin-bottom: 25px;
  animation: fadeIn 1.5s ease-in-out;
}

.hero h1 {
  font-size: 3.2rem;
  color: #0b2948;
  margin: 10px 0;
  text-shadow: 2px 2px 5px rgba(0,0,0,0.2);
}

.hero p {
  font-size: 1.5rem;
  color: #1f3b5c;
  margin-bottom: 30px;
}

.hero button {
  padding: 15px 35px;
  font-size: 1.1rem;
  background: #0b2948;
  color: #fff;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  box-shadow: 0 4px 8px rgba(0,0,0,0.2);
  transition: transform 0.3s, background 0.3s;
}
.hero button:hover {
  background: #163e6e;
  transform: scale(1.05);
}

@keyframes fadeIn {
  from {opacity: 0; transform: translateY(-20px);}
  to {opacity: 1; transform: translateY(0);}
}

section {
  padding: 40px 20px;
  text-align: center;
}

h2 {
  color: #1f3b5c;
  margin-bottom: 20px;
}

.buttons {
  margin-bottom: 20px;
}

.filter-btn {
  padding: 10px 18px;
  margin: 5px;
  border: none;
  background: #1f3b5c;
  color: white;
  border-radius: 5px;
  cursor: pointer;
  transition: background 0.3s;
}
.filter-btn:hover {
  background: #335c8c;
}

.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
}

.gallery img {
  width: 100%;
  border-radius: 10px;
  box-shadow: 0 2px 6px rgba(0,0,0,0.2);
}

footer {
  background: #1f3b5c;
  color: white;
  text-align: center;
  padding: 15px;
}