body {
  font-family: 'Inter', sans-serif;
  background: #f8fafc;
  color: #1e293b;
  margin: 0;
  padding: 0;
}

nav {
    background: #1e293b;
    color: white;
    padding: 1rem 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
}

.nav-links a {
    color: white;
    text-decoration: none;
    margin-left: 20px;
    font-weight: 500;
}

.nav-links button {
    margin-left: 20px;
    background: #ef4444;
}

.container {
  max-width: 1200px;
  margin: 40px auto;
  padding: 0 20px;
  text-align: center;
}

h1, h2 { color: #1e293b; }

.form-container {
  background: white;
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
  width: 100%;
  max-width: 350px;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

input {
  padding: 12px;
  border: 1px solid #e2e8f0;
  border-radius: 8px;
  background: #f8fafc;
}

button {
  background: #3b82f6;
  border: none;
  padding: 12px;
  border-radius: 8px;
  cursor: pointer;
  font-weight: 600;
  color: white;
  transition: background 0.2s;
}

button:hover {
  background: #2563eb;
}

.grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 30px;
}

.card {
  background: white;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 15px -3px rgba(0,0,0,0.1);
}

.price {
    font-size: 1.5rem;
    font-weight: 700;
    color: #10b981;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: white;
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

.cart-summary {
    margin-top: 30px;
    text-align: right;
    padding: 20px;
    background: #e2e8f0;
    border-radius: 12px;
}