body {
  font-family: 'Segoe UI', sans-serif;
  background: linear-gradient(135deg, #5f4b8b, #b197fc);
  color: #fff;
  margin: 0;
  padding: 0;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
}

h1 {
  font-size: 2.3rem;
  margin-top: 2rem;
}

p {
  max-width: 600px;
  margin: 1rem auto;
}

button {
  background-color: #6d5aa0;
  color: white;
  border: none;
  padding: 0.9rem 1.8rem;
  margin: 0.5rem;
  border-radius: 12px;
  font-size: 1rem;
  cursor: pointer;
  transition: all 0.25s ease;
  box-shadow: 0 3px 8px rgba(0,0,0,0.2);
}

button:hover {
  background-color: #57478a;
  transform: scale(1.08);
  box-shadow: 0 6px 15px rgba(0,0,0,0.3);
}

video {
  margin-top: 20px;
  border-radius: 10px;
  box-shadow: 0 0 10px rgba(0, 0, 0, 0.2);
  width: 320px;
  height: 240px;
  display: none;
}

.info {
  background-color: rgba(255, 255, 255, 0.08);
  margin-top: 3rem;
  padding: 2rem;
  border-radius: 16px;
  max-width: 900px;
}

.info h2 {
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

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

.card {
  background: rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 1.3rem;
  width: 220px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 10px rgba(0,0,0,0.15);
}

.card:hover {
  transform: translateY(-8px) scale(1.03);
  background: rgba(255, 255, 255, 0.18);
}

.card img {
  width: 50px;
  height: 50px;
  margin-bottom: 0.8rem;
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.2));
}