body {
  font-family: Arial, sans-serif;
  margin: 0;
  background: #f4f7fb;
}

/* HEADER */
header {
  background: linear-gradient(135deg,#1e88e5,#42a5f5);
  color: white;
  text-align: center;
  padding: 25px;
}

/* NAV */
nav {
  background: #1565c0;
  text-align: center;
  padding: 10px;
}

nav a {
  color: white;
  margin: 0 10px;
  text-decoration: none;
  font-weight: bold;
}

/* CONTAINER */
.container {
  max-width: 1100px;
  margin: auto;
  padding: 20px;
}

/* GRID */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

/* CARD */
.card {
  background: white;
  padding: 15px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.08);
  transition: 0.3s;
}

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

.card img {
  width: 90px;
  height: 90px;
  border-radius: 18px;
}

.card h3 {
  margin: 10px 0;
}

.card p {
  font-size: 14px;
  color: #555;
}

/* BUTTONS */
.btn {
  display: block;
  margin: 6px auto;
  padding: 10px;
  border-radius: 6px;
  text-decoration: none;
  color: white;
  width: 80%;
}

.play {
  background: #34a853;
}

.app {
  background: #000;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 15px;
  background: #1e88e5;
  color: white;
  margin-top: 20px;
}