/* VinFast Việt Hùng Landing Page Styles */

/* CSS Custom Properties */
:root {
  --primary-blue: #1d5b9f;
  --accent-pink: #e41886;
  --text-dark: #333333;
  --text-light: #666666;
  --bg-light: #f6f6f6;
  --white: #ffffff;
  --black: #000000;
  --gray-100: #f8f9fa;
  --gray-200: #e9ecef;
  --gray-300: #dee2e6;
  --gray-400: #ced4da;
  --gray-500: #adb5bd;
  --gray-600: #6c757d;
  --gray-700: #495057;
  --gray-800: #343a40;
  --gray-900: #212529;
  
  /* Typography */
  --font-family: 'Lexend Deca', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  --spacing-4xl: 6rem;
  
  /* Layout */
  --container-max-width: 1200px;
  --header-height: 60px;
  --border-radius: 8px;
  --border-radius-lg: 12px;
  --box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --box-shadow-lg: 0 4px 6px rgba(0, 0, 0, 0.1);
  --box-shadow-xl: 0 10px 25px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-dark);
  background-color: var(--white);
}

.container {
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--text-light);
}

a {
  color: var(--primary-blue);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--accent-pink);
}

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

/* Button Styles */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-sm);
  font-weight: 500;
  text-decoration: none;
  border: none;
  border-radius: var(--border-radius);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

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

.btn-primary:hover {
  background-color: var(--accent-pink);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--box-shadow-lg);
}

.btn-outline {
  background-color: transparent;
  color: var(--primary-blue);
  border: 1px solid var(--primary-blue);
}

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

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

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

.btn-large {
  padding: var(--spacing-md) var(--spacing-2xl);
  font-size: var(--font-size-base);
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Header Styles */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background-color: var(--white);
  box-shadow: var(--box-shadow);
  z-index: 1000;
  transition: all var(--transition-base);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.nav-logo {
  height: 40px;
  width: auto;
}

.brand-text h1 {
  font-size: var(--font-size-lg);
  margin: 0;
  color: var(--primary-blue);
}

.brand-text p {
  font-size: var(--font-size-xs);
  margin: 0;
  color: var(--text-light);
}

.nav-menu {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  margin: 0;
}

.nav-link {
  font-weight: 500;
  color: var(--text-dark);
  padding: var(--spacing-sm) var(--spacing-md);
  border-radius: var(--border-radius);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-blue);
  background-color: var(--gray-100);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.nav-toggle span {
  width: 24px;
  height: 2px;
  background-color: var(--text-dark);
  transition: var(--transition-base);
}

/* Hero Section */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  padding-top: var(--header-height);
  background: linear-gradient(135deg, var(--bg-light) 0%, var(--gray-100) 100%);
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-4xl);
  align-items: center;
}

.hero-content h1 {
  font-size: var(--font-size-5xl);
  color: var(--primary-blue);
  margin-bottom: var(--spacing-sm);
}

.hero-subtitle {
  font-size: var(--font-size-xl);
  color: var(--accent-pink);
  font-weight: 400;
  margin-bottom: var(--spacing-lg);
}

.hero-description {
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
  max-width: 500px;
}

.hero-cta {
  display: flex;
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

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

.hero-bike {
  max-height: 500px;
  object-fit: contain;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
}

/* Section Styles */
.section-header {
  text-align: center;
  margin-bottom: var(--spacing-4xl);
}

.section-title {
  color: var(--primary-blue);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-light);
  max-width: 600px;
  margin: 0 auto;
}

/* Products Section */
.products {
  padding: var(--spacing-4xl) 0;
  background-color: var(--white);
}

.price-range {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-md);
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--primary-blue);
}

.price-from {
  color: var(--accent-pink);
}

.price-separator {
  color: var(--text-light);
}

/* Category Tabs */
.category-tabs {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  margin: var(--spacing-xl) 0;
  flex-wrap: wrap;
}

.tab {
  padding: var(--spacing-sm) var(--spacing-lg);
  border-radius: var(--border-radius-lg);
  background-color: var(--gray-200);
  color: var(--text-light);
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition-base);
  border: 2px solid transparent;
}

.tab:hover {
  background-color: var(--primary-blue);
  color: var(--white);
  transform: translateY(-2px);
}

.tab.active {
  background-color: var(--primary-blue);
  color: var(--white);
  border-color: var(--accent-pink);
}

/* Additional Product Badge Styles */
.product-badge.entry {
  background: linear-gradient(45deg, #74b9ff, #0984e3);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: var(--spacing-2xl);
  margin-top: var(--spacing-3xl);
}

/* Product Cards with Filtering */
.product-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  overflow: hidden;
  box-shadow: var(--box-shadow-lg);
  transition: all 0.3s ease;
  position: relative;
  opacity: 1;
  transform: translateY(0);
}

/* Filtering Animations */
.product-card.filtering-out {
  opacity: 0;
  transform: translateY(-20px);
  pointer-events: none;
}

.product-card.filtering-in {
  animation: filterIn 0.4s ease forwards;
}

@keyframes filterIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--box-shadow-xl);
}

.product-image {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4/3;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

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

.product-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(29, 91, 159, 0.8);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.product-card:hover .product-overlay {
  opacity: 1;
}

.product-info {
  padding: var(--spacing-xl);
}

.product-name {
  color: var(--primary-blue);
  margin-bottom: var(--spacing-sm);
}

.product-specs {
  font-size: var(--font-size-sm);
  color: var(--text-light);
  margin-bottom: var(--spacing-md);
}

.product-price {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--accent-pink);
}

/* Product Badges */
.product-badge {
  position: absolute;
  top: var(--spacing-md);
  right: var(--spacing-md);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  z-index: 2;
  color: var(--white);
}

.product-badge.featured-entry {
  background: linear-gradient(45deg, #ff6b6b, #feca57);
}

.product-badge.budget {
  background: linear-gradient(45deg, #48cae4, #0096c7);
}

.product-badge.popular {
  background: linear-gradient(45deg, #ff8500, #ff6347);
}

.product-badge.premium {
  background: linear-gradient(45deg, #6c5ce7, #a29bfe);
}

.product-badge.performance {
  background: linear-gradient(45deg, #00b894, #00cec9);
}

.product-badge.smart {
  background: linear-gradient(45deg, #0984e3, #6c5ce7);
}

/* Product Features */
.product-features {
  margin-top: var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.feature {
  font-size: var(--font-size-sm);
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.feature::before {
  content: '✓';
  color: var(--primary-blue);
  font-weight: bold;
}

/* Store Locations Section */
.stores {
  padding: var(--spacing-4xl) 0;
  background-color: var(--bg-light);
}

.stores-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
}

.store-card {
  background-color: var(--white);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--box-shadow);
  transition: all var(--transition-base);
}

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

.store-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--spacing-lg);
}

.store-name {
  color: var(--primary-blue);
  margin: 0;
}

.store-status {
  background-color: #22c55e;
  color: var(--white);
  font-size: var(--font-size-xs);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--border-radius);
  font-weight: 500;
}

.store-info {
  margin-bottom: var(--spacing-xl);
}

.store-address,
.store-contact {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}

.store-address p {
  margin: 0;
  color: var(--text-dark);
}

.store-phone {
  font-weight: 500;
  color: var(--primary-blue);
  text-decoration: none;
}

.store-phone:hover {
  color: var(--accent-pink);
}

.store-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.store-actions .btn {
  flex: 1;
  justify-content: center;
}

/* Contact Section */
.contact {
  padding: var(--spacing-4xl) 0;
  background-color: var(--primary-blue);
  color: var(--white);
}

.contact-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-4xl);
}

.contact-title {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.contact-description {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-2xl);
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.contact-method {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.contact-method h3 {
  color: var(--white);
  margin: 0;
  font-size: var(--font-size-base);
}

.contact-method a {
  color: var(--accent-pink);
  font-size: var(--font-size-lg);
  font-weight: 600;
}

.contact-method a:hover {
  color: var(--white);
}

/* Footer */
.footer {
  background-color: var(--gray-900);
  color: var(--gray-300);
  padding: var(--spacing-4xl) 0 var(--spacing-xl);
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 3fr;
  gap: var(--spacing-4xl);
  margin-bottom: var(--spacing-2xl);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.footer-logo img {
  height: 40px;
  width: auto;
}

.footer-logo h3 {
  color: var(--white);
  margin: 0;
}

.footer-description {
  color: var(--gray-400);
  max-width: 400px;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-xl);
}

.footer-column h4 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: var(--spacing-sm);
}

.footer-column a {
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

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

.footer-bottom {
  border-top: 1px solid var(--gray-700);
  padding-top: var(--spacing-xl);
  text-align: center;
}

.footer-bottom p {
  margin: 0;
  color: var(--gray-500);
}

/* Icons */
.icon-location::before,
.icon-phone::before,
.icon-phone-large::before,
.icon-email::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-right: var(--spacing-xs);
}

.icon-location::before { content: '📍'; }
.icon-phone::before { content: '📞'; }
.icon-phone-large::before { 
  content: '📞'; 
  font-size: var(--font-size-xl);
}
.icon-email::before { content: '✉️'; }

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-grid { display: grid; }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

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

.fade-in-up {
  animation: fadeInUp 0.6s ease forwards;
}

/* Smooth scrolling for older browsers */
@media (prefers-reduced-motion: no-preference) {
  html {
    scroll-behavior: smooth;
  }
}

/* Print styles */
@media print {
  .header,
  .nav-toggle,
  .btn,
  .footer {
    display: none !important;
  }
  
  body {
    font-size: 12pt;
  }
  
  .hero {
    padding-top: 0;
  }
}