* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Segoe UI', sans-serif;
  line-height: 1.6;
  color: #222;
  background: #fff;
}

a {
  text-decoration: none;
  color: inherit;
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background-color: #000;
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar nav a {
  margin-left: 1.5rem;
  color: #fff;
  font-weight: 500;
}

.logo {
  font-size: 1.4rem;
  font-weight: bold;
}

.hero {
  height: 100vh;
  background: url('/assets/bd.png') no-repeat center center/cover;
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 2rem;
}

.hero-content h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.btn {
  display: inline-block;
  background: #ff6b00;
  color: white;
  padding: 0.75rem 1.5rem;
  margin-top: 1rem;
  border-radius: 30px;
  transition: 0.3s ease;
}

.btn:hover {
  background: #e35b00;
}

.section {
  padding: 4rem 2rem;
  text-align: center;
}

.bg-light {
  background-color: #f9f9f9;
}

.cards {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
}

.card {
  background: white;
  padding: 1.5rem;
  max-width: 300px;
  box-shadow: 0 0 10px rgba(0,0,0,0.05);
  border-radius: 12px;
  text-align: left;
}

.footer {
  background: #222;
  color: white;
  padding: 3rem 2rem;
  text-align: center;
}