/* Root Variables & Modern Design System */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
  --primary: #6366F1;
  --secondary: #94A3B8;
  --bg-dark: #0F172A;
  --bg-card: rgba(30, 41, 59, 0.7);
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --glass: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
  --success: #22C55E;
  --error: #EF4444;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Outfit', sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

/* Glassmorphism Classes */
.glass {
  background: var(--glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
}

/* Navigation */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.5rem 5%;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--glass-border);
}

nav .logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.5px;
}

nav .cart-icon {
  position: relative;
  cursor: pointer;
  padding: 0.5rem;
  border-radius: 50%;
  transition: var(--transition);
}

nav .cart-icon:hover {
  background: var(--glass);
}

nav .cart-count {
  position: absolute;
  top: -2px;
  right: -2px;
  background: var(--primary);
  color: white;
  font-size: 0.75rem;
  font-weight: 600;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Product Section */
.hero {
  text-align: center;
  padding: 4rem 1rem 2rem;
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(to right, #818CF8, #C084FC);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  padding: 2rem 5% 5rem;
}

.product-card {
  border-radius: 1.5rem;
  overflow: hidden;
  transition: var(--transition);
  position: relative;
}

.product-card:hover {
  transform: translateY(-10px);
  border-color: var(--primary);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.product-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  transition: var(--transition);
}

.product-info {
  padding: 1.5rem;
}

.product-name {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
}

.product-price {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
}

.add-btn {
  width: 100%;
  padding: 1rem;
  margin-top: 1.5rem;
  border: none;
  border-radius: 0.75rem;
  background: var(--primary);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

.add-btn:hover {
  filter: brightness(1.1);
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

/* Sidebar / Cart View */
.cart-sidebar {
  position: fixed;
  right: -400px;
  top: 0;
  width: 400px;
  height: 100vh;
  z-index: 1000;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.cart-sidebar.active {
  right: 0;
}

.cart-header {
  padding: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--glass-border);
}

.cart-items {
  flex: 1;
  overflow-y: auto;
  padding: 2rem;
}

.cart-item {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--glass-border);
}

.cart-item-img {
  width: 80px;
  height: 80px;
  border-radius: 0.5rem;
  object-fit: cover;
}

.cart-item-info h4 {
  font-weight: 600;
}

.cart-item-price {
  color: var(--primary);
  font-weight: 600;
}

.cart-footer {
  padding: 2rem;
  background: rgba(30, 41, 59, 1);
  border-top: 1px solid var(--glass-border);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.summary-row.total {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--glass-border);
}

.checkout-btn {
  width: 100%;
  padding: 1rem;
  margin-top: 1.5rem;
  border: none;
  border-radius: 0.75rem;
  background: var(--primary);
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}

/* Responsive */
@media (max-width: 480px) {
  .cart-sidebar {
    width: 100%;
    right: -100%;
  }
}