* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: 'Segoe UI', sans-serif;
}

body {
  background-color: #10293b;
  color: #f1f1f1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header {
  background-color: #1f1f1f;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

header h1 {
  color: #00ffd0;
  font-size: 1.8rem;
}

header select {
  padding: 0.5rem;
  border-radius: 5px;
  background-color: #292929;
  color: white;
  border: none;
}

main {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
  padding: 2rem;
}

.product-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
  flex: 3;
}

.product {
  background-color: #1e1e1e;
  padding: 1rem;
  border-radius: 12px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.product:hover {
  transform: translateY(-5px);
  box-shadow: 0 4px 20px rgba(0, 255, 208, 0.3);
}

.product img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 1rem;
}


.product-info h3 {
  color: #00ffd0;
  margin-bottom: 0.5rem;
}

.product-info p {
  margin-bottom: 0.5rem;
}

.product-info button {
  padding: 0.5rem 1rem;
  background-color: #00ffd0;
  border: none;
  color: #121212;
  border-radius: 5px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.product-info button:hover {
  background-color: #00cbb2;
}

.checkout {
  flex: 1;
  background-color: #1c1c1c;
  padding: 1rem;
  border-radius: 12px;
  max-width: 300px;
  height: fit-content;
}

.checkout h2 {
  margin-bottom: 1rem;
  color: #58e4d4;
}

.checkout p {
  margin-top: 0.5rem;
}

footer {
  background-color: #1f1f1f;
  text-align: center;
  padding: 1rem;
  margin-top: auto;
  color: #ccc;
}

@media screen and (max-width: 768px) {
  main {
    flex-direction: column;
  }

  .checkout {
    max-width: 100%;
  }
}
.buy-now {
  margin-top: 1rem;
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  background-color: #7542a4;
  color: #121212;
  border: none;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.3s ease;
}

.buy-now:hover {
  background-color: #58e4d4;

}