body {
  font-family: "Poppins", sans-serif;
  margin: 0;
  background: #0d0d0d;
  color: #fff;
}

/* /* Navbar */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 40px;
  background: #111;
}

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

.logo img {
  width: 50px;
}

nav a {
  margin: 0 15px;
  color: #ddd;
  text-decoration: none;
}
.btn {
  background: linear-gradient(135deg, #00eaff, #4a90e2);
  color: #000;
  padding: 10px 20px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: 0.3s;
}

.btn:hover {
  transform: scale(1.05);
  background: linear-gradient(135deg, #00cfff, #357abd);
}

.categories-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 3rem;
}

.category-card {
  background: linear-gradient(135deg, #1f1f1f, #2b2b2b);
  border-radius: 15px;
  padding: 1.5rem;
  box-shadow: 0 6px 20px rgba(0,0,0,0.5);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
  position: relative;
  overflow: hidden;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 30px rgba(0, 234, 255, 0.5);
}

.category-title {
  font-size: 1.4rem;
  font-weight: bold;
  color: #00eaff;
  margin-bottom: 1rem;
}

.subcategories {
  list-style: none;
  padding: 0;
  margin: 0;
  display: none;
  animation: fadeIn 0.5s ease-in-out;
}

.subcategories li {
  background: rgba(255,255,255,0.05);
  padding: 10px;
  margin: 5px 0;
  border-radius: 8px;
  transition: background 0.3s;
}

.subcategories li:hover {
  background: rgba(0, 234, 255, 0.2);
}

.category-card.active .subcategories {
  display: block;
}

.arrow {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  font-size: 1.2rem;
  transition: transform 0.3s;
}

.category-card.active .arrow {
  transform: rotate(90deg);
  color: #00eaff;
}

@keyframes fadeIn {
  from {opacity: 0; transform: translateY(-5px);}
  to {opacity: 1; transform: translateY(0);}
}
/* Button group layout */
.category-group {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

/* Pill-style buttons */
.tile-button {
	background-color: #2d2d2d;
	color: white;
	font-size: 18px;
	padding: 12px 16px;
	border-radius: 10px;
	margin-top: 10px;
	transition: background-color 0.3s ease;
	cursor: pointer;
}

.tile-button:hover {
	background-color: #3d3d3d;
}