/* ==========================================
   StyleHub - Premium Fashion Store CSS
   ========================================== */

/* CSS Variables */
:root {
  --primary: #3B82F6;
  --primary-dark: #2563EB;
  --secondary: #10B981;
  --dark: #111827;
  --gray-900: #1F2937;
  --gray-800: #374151;
  --gray-700: #4B5563;
  --gray-600: #6B7280;
  --gray-500: #9CA3AF;
  --gray-400: #D1D5DB;
  --gray-300: #E5E7EB;
  --gray-200: #F3F4F6;
  --gray-100: #F9FAFB;
  --white: #FFFFFF;
  --danger: #EF4444;
  --warning: #F59E0B;
  --success: #10B981;

  --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --radius: 8px;
  --radius-lg: 12px;
  --transition: all 0.2s ease;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-700);
  background-color: var(--white);
}

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

ul {
  list-style: none;
}

img, svg {
  display: block;
  max-width: 100%;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

/* Container */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: 14px;
  font-weight: 500;
  border-radius: var(--radius);
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--primary);
  color: var(--white);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-outline {
  background-color: transparent;
  color: var(--dark);
  border: 2px solid var(--gray-300);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.btn-lg {
  padding: 16px 32px;
  font-size: 16px;
}

.btn-full {
  width: 100%;
}

.icon-btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  transition: var(--transition);
  position: relative;
}

.icon-btn:hover {
  background-color: var(--gray-100);
}

.icon-btn svg {
  width: 22px;
  height: 22px;
  color: var(--gray-700);
}

/* Header */
.header {
  position: sticky;
  top: 0;
  background-color: var(--white);
  border-bottom: 1px solid var(--gray-200);
  z-index: 1000;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  font-size: 24px;
  font-weight: 700;
  color: var(--dark);
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-600);
}

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

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.cart-badge {
  position: absolute;
  top: -2px;
  right: -2px;
  background-color: var(--primary);
  color: var(--white);
  font-size: 11px;
  font-weight: 600;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.mobile-menu-btn {
  display: none;
}

/* Hero Section */
.hero {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--gray-100) 0%, var(--white) 100%);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-tag {
  display: inline-block;
  background-color: var(--primary);
  color: var(--white);
  padding: 8px 16px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: 52px;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.2;
  margin-bottom: 24px;
}

.hero h1 span {
  color: var(--primary);
}

.hero p {
  font-size: 18px;
  color: var(--gray-600);
  margin-bottom: 32px;
  max-width: 500px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-image-placeholder {
  background-color: var(--gray-200);
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-image-placeholder svg {
  width: 100%;
  height: 100%;
}

/* Section Styles */
.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 16px;
  color: var(--gray-600);
}

.section-tag {
  display: inline-block;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 12px;
}

.section-footer {
  text-align: center;
  margin-top: 48px;
}

/* Categories Section */
.categories {
  padding: 80px 0;
}

.categories-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.category-card {
  text-align: center;
  padding: 32px 24px;
  background-color: var(--white);
  border-radius: var(--radius-lg);
  border: 1px solid var(--gray-200);
  transition: var(--transition);
  cursor: pointer;
}

.category-card:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.category-image {
  width: 100px;
  height: 100px;
  margin: 0 auto 16px;
  border-radius: 50%;
  overflow: hidden;
}

.category-image svg {
  width: 100%;
  height: 100%;
}

.category-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 4px;
}

.category-card p {
  font-size: 14px;
  color: var(--gray-500);
}

/* Products Section */
.products {
  padding: 80px 0;
  background-color: var(--gray-100);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.product-card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.product-image {
  position: relative;
  overflow: hidden;
}

.product-image svg {
  width: 100%;
  aspect-ratio: 4/5;
  transition: transform 0.3s ease;
}

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

.product-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: var(--dark);
  color: var(--white);
  padding: 6px 12px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.product-badge.sale {
  background-color: var(--danger);
}

.product-badge.hot {
  background-color: var(--warning);
}

.product-actions {
  position: absolute;
  top: 12px;
  right: 12px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  opacity: 0;
  transform: translateX(10px);
  transition: var(--transition);
}

.product-card:hover .product-actions {
  opacity: 1;
  transform: translateX(0);
}

.product-btn {
  width: 40px;
  height: 40px;
  background-color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.product-btn:hover {
  background-color: var(--primary);
}

.product-btn:hover svg {
  stroke: var(--white);
}

.product-btn svg {
  width: 18px;
  height: 18px;
  stroke: var(--gray-600);
}

.product-info {
  padding: 20px;
}

.product-category {
  font-size: 12px;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.product-info h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  margin: 8px 0 12px;
}

.product-price {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 16px;
}

.product-price .price {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
}

.product-price .original-price {
  font-size: 14px;
  color: var(--gray-500);
  text-decoration: line-through;
}

/* Features Section */
.features {
  padding: 80px 0;
  border-top: 1px solid var(--gray-200);
  border-bottom: 1px solid var(--gray-200);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-card {
  text-align: center;
  padding: 24px;
}

.feature-icon {
  width: 60px;
  height: 60px;
  margin: 0 auto 16px;
  background-color: var(--gray-100);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon svg {
  width: 28px;
  height: 28px;
  stroke: var(--primary);
}

.feature-card h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: 14px;
  color: var(--gray-600);
}

/* About Section */
.about {
  padding: 100px 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 36px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
}

.about-text p {
  color: var(--gray-600);
  margin-bottom: 16px;
}

.about-text .btn {
  margin-top: 16px;
}

.about-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.about-image svg {
  width: 100%;
  aspect-ratio: 4/3;
}

/* Newsletter Section */
.newsletter {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

.newsletter-content {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
}

.newsletter h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 12px;
}

.newsletter p {
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 32px;
}

.newsletter-form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto;
}

.newsletter-form input {
  flex: 1;
  padding: 16px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 15px;
  outline: none;
}

.newsletter-form .btn {
  flex-shrink: 0;
  background-color: var(--dark);
}

.newsletter-form .btn:hover {
  background-color: var(--gray-900);
}

/* Footer */
.footer {
  background-color: var(--gray-900);
  color: var(--gray-400);
  padding: 60px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--gray-800);
}

.footer-brand .logo {
  color: var(--white);
  margin-bottom: 16px;
  display: inline-block;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 24px;
}

.social-links {
  display: flex;
  gap: 12px;
}

.social-links a {
  width: 40px;
  height: 40px;
  background-color: var(--gray-800);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

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

.social-links svg {
  width: 18px;
  height: 18px;
  color: var(--gray-400);
}

.social-links a:hover svg {
  color: var(--white);
}

.footer-links h4 {
  color: var(--white);
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 20px;
}

.footer-links ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: var(--gray-400);
}

.footer-links a:hover {
  color: var(--white);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
}

.footer-bottom p {
  font-size: 14px;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  font-size: 14px;
  color: var(--gray-400);
}

.footer-bottom-links a:hover {
  color: var(--white);
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-content {
    text-align: center;
  }

  .hero p {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-image-placeholder {
    max-width: 500px;
    margin: 0 auto;
  }

  .categories-grid,
  .products-grid,
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about-content {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-links,
  .nav-actions .btn {
    display: none;
  }

  .mobile-menu-btn {
    display: flex;
  }

  .hero h1 {
    font-size: 36px;
  }

  .hero p {
    font-size: 16px;
  }

  .section-header h2 {
    font-size: 28px;
  }

  .newsletter-form {
    flex-direction: column;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .categories-grid,
  .products-grid,
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero h1 {
    font-size: 28px;
  }

  .btn-lg {
    padding: 14px 24px;
    font-size: 14px;
  }
}