/* Kahfmart Premium Design System */

:root {
  --primary-color: #0f172a;
  --secondary-color: #3b82f6;
  --accent-color: #10b981;
  --bg-color: #f8fafc;
  --surface-color: #ffffff;
  --text-primary: #1e293b;
  --text-secondary: #64748b;
  --border-color: #e2e8f0;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-hover: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  
  --radius-md: 0.5rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Outfit', 'Inter', sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Navbar */
header {
  background-color: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  border-bottom: 1px solid var(--border-color);
  transition: var(--transition);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary-color);
  letter-spacing: -0.025em;
}

.logo span {
  color: var(--secondary-color);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
  position: relative;
}

.nav-links a:hover {
  color: var(--primary-color);
}

.nav-links a::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--secondary-color);
  transition: var(--transition);
}

.nav-links a:hover::after {
  width: 100%;
}

.nav-icons {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.icon-btn {
  background: none;
  border: none;
  font-size: 1.25rem;
  color: var(--text-primary);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.icon-btn:hover {
  color: var(--secondary-color);
  transform: translateY(-2px);
}

.cart-count {
  position: absolute;
  top: -8px;
  right: -8px;
  background-color: var(--secondary-color);
  color: white;
  font-size: 0.75rem;
  font-weight: 700;
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  font-size: 1.5rem;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-primary);
}

/* Hero Section */
.hero {
  margin-top: 5rem;
  position: relative;
  height: calc(100vh - 5rem);
  min-height: 600px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.7);
}

.hero-content {
  color: white;
  max-width: 600px;
  animation: slideUp 1s ease-out;
}

.hero-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(4px);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-content h1 {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.025em;
}

.hero-content p {
  font-size: 1.25rem;
  color: #e2e8f0;
  margin-bottom: 2rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1rem 2rem;
  font-size: 1rem;
  font-weight: 600;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  border: none;
}

.btn-primary {
  background-color: var(--secondary-color);
  color: white;
  box-shadow: 0 4px 14px 0 rgba(59, 130, 246, 0.39);
}

.btn-primary:hover {
  background-color: #2563eb;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

/* Featured Products */
.section {
  padding: 5rem 0;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.section-header h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 1.125rem;
}

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

.product-card {
  background-color: var(--surface-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  position: relative;
  group: product;
}

.product-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-hover);
}

.product-image {
  position: relative;
  padding-top: 100%; /* 1:1 Aspect Ratio */
  overflow: hidden;
  background-color: #f1f5f9;
}

.product-image img {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.05);
}

.product-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  background-color: var(--accent-color);
  color: white;
  padding: 0.25rem 0.75rem;
  border-radius: 1rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  z-index: 10;
}

.product-actions {
  position: absolute;
  bottom: -3rem;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  padding: 1rem;
  transition: var(--transition);
  opacity: 0;
  z-index: 10;
}

.product-card:hover .product-actions {
  bottom: 0;
  opacity: 1;
}

.action-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background-color: white;
  color: var(--primary-color);
  display: flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  box-shadow: var(--shadow-md);
  transition: var(--transition);
}

.action-btn:hover {
  background-color: var(--secondary-color);
  color: white;
  transform: scale(1.1);
}

.action-btn.add-cart {
  width: auto;
  border-radius: 20px;
  padding: 0 1.5rem;
  font-weight: 600;
  background-color: var(--primary-color);
  color: white;
}

.action-btn.add-cart:hover {
  background-color: var(--secondary-color);
}

.product-info {
  padding: 1.5rem;
}

.product-category {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

.product-title {
  font-size: 1.125rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  color: var(--text-primary);
}

.product-price {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.current-price {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--secondary-color);
}

.old-price {
  font-size: 0.875rem;
  color: var(--text-secondary);
  text-decoration: line-through;
}

/* Footer */
footer {
  background-color: var(--primary-color);
  color: white;
  padding: 4rem 0 2rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h3 {
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.footer-links li {
  margin-bottom: 0.75rem;
}

.footer-links a {
  color: #94a3b8;
  transition: var(--transition);
}

.footer-links a:hover {
  color: white;
  padding-left: 5px;
}

.newsletter-form {
  display: flex;
  margin-top: 1rem;
}

.newsletter-form input {
  flex: 1;
  padding: 0.75rem 1rem;
  border: none;
  border-radius: var(--radius-md) 0 0 var(--radius-md);
  outline: none;
}

.newsletter-form button {
  padding: 0.75rem 1.5rem;
  background-color: var(--secondary-color);
  color: white;
  border: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  cursor: pointer;
  font-weight: 600;
  transition: var(--transition);
}

.newsletter-form button:hover {
  background-color: #2563eb;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  color: #94a3b8;
  font-size: 0.875rem;
}

/* Animations */
@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Responsive */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 5rem;
    left: -100%;
    width: 100%;
    height: calc(100vh - 5rem);
    background-color: white;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
  }

  .nav-links.active {
    left: 0;
  }

  .menu-toggle {
    display: block;
  }

  .hero-content h1 {
    font-size: 2.5rem;
  }
  
  .products-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}