/* CSS Variables (Design System) */
:root {
  /* Colors - Amazon Orange Theme */
  --color-primary: hsl(36, 100%, 50%);
  --color-primary-hover: hsl(36, 100%, 45%);
  --color-secondary: hsl(210, 29%, 17%);
  --color-accent: hsl(45, 100%, 51%);
  --color-purple: hsl(270, 60%, 60%);
  
  --color-background: hsl(210, 40%, 98%);
  --color-foreground: hsl(222, 47%, 11%);
  --color-muted: hsl(210, 40%, 96%);
  --color-muted-foreground: hsl(215, 16%, 47%);
  --color-border: hsl(214, 32%, 91%);
  
  /* Gradients */
  --gradient-primary: linear-gradient(135deg, hsl(36, 100%, 50%) 0%, hsl(45, 100%, 55%) 100%);
  --gradient-accent: linear-gradient(135deg, hsl(45, 100%, 51%) 0%, hsl(35, 100%, 55%) 100%);
  --gradient-purple: linear-gradient(135deg, hsl(36, 100%, 50%) 0%, hsl(270, 60%, 60%) 100%);
  
  /* Shadows */
  --shadow-sm: 0 2px 8px -2px hsl(36, 100%, 50%, 0.1);
  --shadow-md: 0 8px 24px -4px hsl(36, 100%, 50%, 0.15);
  --shadow-lg: 0 16px 48px -8px hsl(36, 100%, 50%, 0.2);
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 0.75rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.75rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;
  
  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, 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;
  --font-size-6xl: 3.75rem;
  --font-size-7xl: 4.5rem;
  
  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: 900px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-xs);
  padding: 0.5rem 1rem;
  font-size: var(--font-size-sm);
  font-weight: 500;
  border-radius: var(--radius-md);
  border: none;
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

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

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

.btn-outline:hover {
  background: var(--color-accent);
  color: var(--color-secondary);
  border-color: var(--color-accent);
}

.btn-sm {
  padding: 0.375rem 0.75rem;
  font-size: var(--font-size-sm);
}

.btn-lg {
  padding: 0.75rem 2rem;
  font-size: var(--font-size-lg);
}

.btn-full {
  width: 100%;
}

.btn-icon {
  gap: var(--spacing-sm);
}

.btn-icon .icon-arrow {
  transition: transform var(--transition-base);
}

.btn-primary:hover .icon-arrow {
  transform: translateX(4px);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(252, 252, 253, 0.8);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4rem;
}

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

.logo-icon {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.logo-box {
  border-radius: var(--radius-md);
}

.logo-box-1 {
  width: 2rem;
  height: 2rem;
  background: var(--gradient-purple);
}

.logo-box-2 {
  width: 1.5rem;
  height: 1.5rem;
  background: var(--gradient-accent);
}

.logo-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-foreground);
}

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

.nav-link {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-muted-foreground);
  transition: color var(--transition-base);
}

.nav-link:hover {
  color: var(--color-foreground);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-foreground);
}

/* Hero Section */
.hero {
  padding: 8rem var(--spacing-md) 5rem;
  background: linear-gradient(180deg, var(--color-background) 0%, var(--color-muted) 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-3xl);
  align-items: center;
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.badge {
  display: inline-block;
  width: fit-content;
  padding: var(--spacing-sm) var(--spacing-md);
  background: rgba(255, 165, 0, 0.1);
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.hero-title {
  font-size: var(--font-size-5xl);
  font-weight: 700;
  line-height: 1.1;
  color: var(--color-foreground);
}

.gradient-text {
  background: var(--gradient-purple);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-description {
  font-size: var(--font-size-xl);
  line-height: 1.6;
  color: var(--color-muted-foreground);
  max-width: 40rem;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.hero-image {
  position: relative;
}

.hero-image-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255, 165, 0, 0.2) 0%, rgba(147, 51, 234, 0.2) 100%);
  border-radius: var(--radius-xl);
  filter: blur(48px);
}

.hero-image img {
  position: relative;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

/* Sections */
.section {
  padding: 6rem var(--spacing-md);
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-foreground);
  margin-bottom: var(--spacing-md);
}

.section-description {
  font-size: var(--font-size-xl);
  color: var(--color-muted-foreground);
  max-width: 42rem;
  margin: 0 auto;
}

/* Card */
.card {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
}

/* Features */
.features {
  background: var(--color-background);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  padding: var(--spacing-xl);
}

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

.feature-icon {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(255, 165, 0, 0.2) 0%, rgba(147, 51, 234, 0.2) 100%);
  border-radius: var(--radius-xl);
  margin-bottom: var(--spacing-lg);
}

.feature-icon .icon {
  color: var(--color-primary);
}

.feature-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: var(--spacing-sm);
}

.feature-description {
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

/* Pricing */
.pricing {
  background: var(--color-muted);
}

.benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-3xl);
}

.benefit-card {
  padding: var(--spacing-xl);
  text-align: center;
}

.benefit-icon {
  width: 3.5rem;
  height: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(255, 165, 0, 0.2) 0%, rgba(147, 51, 234, 0.2) 100%);
  border-radius: var(--radius-xl);
  margin: 0 auto var(--spacing-md);
}

.benefit-icon .icon {
  color: var(--color-primary);
}

.benefit-title {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: var(--spacing-xs);
}

.benefit-description {
  color: var(--color-muted-foreground);
}

.pricing-card {
  border-color: rgba(255, 165, 0, 0.2);
  background: linear-gradient(135deg, rgba(255, 165, 0, 0.05) 0%, rgba(147, 51, 234, 0.05) 100%);
  padding: var(--spacing-3xl);
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.pricing-amount {
  margin-bottom: var(--spacing-md);
}

.price {
  font-size: var(--font-size-6xl);
  font-weight: 700;
  color: var(--color-foreground);
}

.price-period {
  font-size: var(--font-size-2xl);
  color: var(--color-muted-foreground);
  margin-left: var(--spacing-sm);
}

.pricing-subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-muted-foreground);
}

.features-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
  list-style: none;
  margin-bottom: var(--spacing-xl);
}

.feature-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-foreground);
}

.check-icon {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* FAQ */
.faq {
  background: var(--color-background);
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
}

.accordion-item {
  background: white;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--spacing-lg) var(--spacing-xl);
  background: transparent;
  border: none;
  text-align: left;
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--color-foreground);
  transition: color var(--transition-base);
}

.accordion-trigger:hover {
  color: var(--color-primary);
}

.accordion-icon {
  flex-shrink: 0;
  transition: transform var(--transition-base);
}

.accordion-trigger[aria-expanded="true"] .accordion-icon {
  transform: rotate(180deg);
}

.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.accordion-content p {
  padding: 0 var(--spacing-xl) var(--spacing-lg);
  color: var(--color-muted-foreground);
  line-height: 1.6;
}

/* Contact */
.contact {
  background: linear-gradient(180deg, var(--color-muted) 0%, var(--color-background) 100%);
}

.contact-card {
  background: linear-gradient(135deg, rgba(255, 165, 0, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
  border-color: rgba(255, 165, 0, 0.2);
  padding: var(--spacing-3xl);
  text-align: center;
}

.contact-title {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  color: var(--color-foreground);
  margin-bottom: var(--spacing-md);
}

.contact-description {
  font-size: var(--font-size-xl);
  color: var(--color-muted-foreground);
  max-width: 42rem;
  margin: 0 auto var(--spacing-xl);
}

.contact-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
  margin-bottom: var(--spacing-3xl);
}

.contact-footer {
  padding-top: var(--spacing-xl);
  border-top: 1px solid rgba(214, 219, 228, 0.5);
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
}

.contact-link {
  color: var(--color-primary);
  text-decoration: underline;
}

.contact-link:hover {
  color: var(--color-primary-hover);
}

/* Footer */
.footer {
  padding: var(--spacing-3xl) var(--spacing-md);
  background: var(--color-muted);
  border-top: 1px solid var(--color-border);
}

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

.footer-brand {
  grid-column: span 1;
}

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

.footer-description {
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
}

.footer-heading {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-foreground);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
  transition: color var(--transition-base);
}

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

.footer-bottom {
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: var(--font-size-sm);
  color: var(--color-muted-foreground);
}

/* Responsive Design */
@media (min-width: 768px) {
  .container {
    padding: 0 var(--spacing-xl);
  }
}

@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
  }
  
  .hero-title {
    font-size: var(--font-size-7xl);
  }
  
  .section-title {
    font-size: var(--font-size-5xl);
  }
}

@media (max-width: 767px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: white;
    border-top: 1px solid var(--color-border);
    padding: var(--spacing-lg);
    gap: var(--spacing-md);
  }
  
  .nav-links.active {
    display: flex;
  }
  
  .nav-toggle {
    display: block;
  }
  
  .hero {
    padding-top: 6rem;
  }
  
  .hero-title {
    font-size: var(--font-size-3xl);
  }
  
  .section-title {
    font-size: var(--font-size-3xl);
  }
  
  .contact-title {
    font-size: var(--font-size-3xl);
  }
  
  .hero-buttons,
  .contact-buttons {
    flex-direction: column;
  }
  
  .btn-lg {
    width: 100%;
  }
}

/* Animations */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Accessibility */
.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Policy Pages */
.policy-content {
  line-height: 1.7;
}

.policy-content h2 {
  font-size: var(--font-size-2xl);
  font-weight: 600;
  color: var(--color-foreground);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-sm);
  border-bottom: 1px solid var(--color-border);
}

.policy-content h2:first-child {
  margin-top: 0;
}

.policy-content h3 {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-foreground);
  margin-top: var(--spacing-xl);
  margin-bottom: var(--spacing-sm);
}

.policy-content p {
  margin-bottom: var(--spacing-md);
  color: var(--color-muted-foreground);
}

.policy-content ul {
  margin-bottom: var(--spacing-md);
  padding-left: var(--spacing-lg);
}

.policy-content li {
  margin-bottom: var(--spacing-xs);
  color: var(--color-muted-foreground);
}

.policy-content a {
  color: var(--color-primary);
  text-decoration: underline;
}

.policy-content a:hover {
  color: var(--color-primary-hover);
}

/* Focus Styles */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}