:root {
  --color-primary: #6366f1;
  --color-primary-light: #818cf8;
  --color-primary-dark: #4f46e5;
  --color-secondary: #3b82f6;
  --color-secondary-light: #60a5fa;
  --color-secondary-dark: #2563eb;
  --color-accent: #c084fc;
  --color-accent-light: #d8b4fe;
  --color-accent-dark: #9333ea;
  
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;
  
  --color-gray-50: #f9fafb;
  --color-gray-100: #f3f4f6;
  --color-gray-200: #e5e7eb;
  --color-gray-300: #d1d5db;
  --color-gray-400: #9ca3af;
  --color-gray-500: #6b7280;
  --color-gray-600: #4b5563;
  --color-gray-700: #374151;
  --color-gray-800: #1f2937;
  --color-gray-900: #111827;
  
  --spacing-xs: 4px;
  --spacing-sm: 8px;
  --spacing-md: 16px;
  --spacing-lg: 24px;
  --spacing-xl: 32px;
  --spacing-2xl: 48px;
  --spacing-3xl: 64px;
  
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;
  
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-md: 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;
  
  --line-height-tight: 1.2;
  --line-height-normal: 1.5;
  --line-height-relaxed: 1.75;
  
  --container-max-width: 1200px;
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  line-height: var(--line-height-normal);
  color: var(--color-gray-800);
  background-color: var(--color-gray-50);
}

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

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

a:hover {
  color: var(--color-primary-dark);
}

h1, h2, h3, h4, h5, h6 {
  margin-top: 0;
  line-height: var(--line-height-tight);
  font-weight: 700;
  color: var(--color-gray-900);
}

p {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

ul {
  padding-left: var(--spacing-xl);
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

/* Layout */
.container {
  width: 100%;
  max-width: var(--container-max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

section {
  padding: var(--spacing-3xl) 0;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  font-weight: 500;
  text-align: center;
  border-radius: var(--border-radius-md);
  transition: all 0.2s ease;
  cursor: pointer;
}

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

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

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

.btn-secondary:hover {
  background-color: var(--color-primary-light);
  color: white;
  border-color: var(--color-primary-light);
}

/* Titles */
.section-title {
  font-size: var(--font-size-3xl);
  text-align: center;
  margin-bottom: var(--spacing-2xl);
}

/* Image placeholders */
.image-placeholder {
  background-color: var(--color-gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-gray-500);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  width: 100%;
  height: 100%;
  min-height: 200px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #7c3aed 0%, #2563eb 100%);
  color: white;
  text-align: center;
  padding: var(--spacing-3xl) 0;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 600px;
}

.hero__branding {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-2xl);
}

.hero__logo {
  width: 64px;
  height: 64px;
  margin-right: var(--spacing-md);
}

.hero__brand {
  font-size: var(--font-size-4xl);
  margin: 0;
  color: white;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.hero__tagline {
  font-size: var(--font-size-2xl);
  max-width: 800px;
  margin: 0 auto var(--spacing-lg);
  color: var(--color-gray-100);
}

.hero__description {
  font-size: var(--font-size-xl);
  max-width: 700px;
  margin: 0 auto var(--spacing-2xl);
  color: var(--color-gray-200);
}

.hero__cta {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

/* Features Section */
.features {
  background-color: white;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.feature-card {
  text-align: center;
  padding: var(--spacing-xl);
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.feature-card__icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-md);
}

.feature-card__title {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.feature-card__description {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

/* How It Works */
.how-it-works {
  background-color: var(--color-gray-50);
}

.steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  max-width: 900px;
  margin: 0 auto;
}

.step {
  text-align: center;
  width: 100%;
  max-width: 200px;
  margin-bottom: var(--spacing-xl);
}

.step__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0 auto var(--spacing-md);
  background-color: var(--color-primary);
  color: white;
  font-weight: 700;
  font-size: var(--font-size-xl);
  border-radius: 50%;
}

.step__title {
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

.step__description {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

/* Benefits Section */
.benefits {
  background-color: white;
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

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

.benefit__icon {
  width: 64px;
  height: 64px;
  margin-bottom: var(--spacing-md);
}

.benefit__title {
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-xl);
}

.benefit__description {
  color: var(--color-gray-600);
  margin-bottom: 0;
}

/* Products Section */
.products {
  background-color: var(--color-gray-50);
}

.products__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1100px;
  margin: 0 auto;
}

.product-card {
  background-color: white;
  border-radius: var(--border-radius-lg);
  box-shadow: var(--shadow-md);
  padding: var(--spacing-xl);
  text-align: center;
  position: relative;
  display: flex;
  flex-direction: column;
}

.product-card--featured {
  border: 2px solid var(--color-primary);
  transform: translateY(-10px);
}

.product-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-primary);
  color: white;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-md);
  font-size: var(--font-size-sm);
  font-weight: 500;
}

.product-card__title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--spacing-md);
}

.product-card__price {
  font-size: var(--font-size-4xl);
  font-weight: 700;
  margin-bottom: var(--spacing-xl);
  color: var(--color-primary);
}

.product-card__price span {
  font-size: var(--font-size-md);
  font-weight: 400;
  color: var(--color-gray-500);
}

.product-card__features {
  list-style-type: none;
  padding-left: 0;
  margin-bottom: var(--spacing-xl);
  flex-grow: 1;
}

.product-card__features li {
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-gray-200);
}

.product-card__features li:last-child {
  border-bottom: none;
}

.product-card__cta {
  width: 100%;
}

/* Testimonials */
.testimonials {
  background-color: white;
}

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

.testimonial {
  background-color: var(--color-gray-50);
  border-radius: var(--border-radius-lg);
  padding: var(--spacing-xl);
}

.testimonial__content {
  margin-bottom: var(--spacing-lg);
  font-style: italic;
  color: var(--color-gray-700);
  position: relative;
}

.testimonial__content::before {
  content: '"';
  font-size: var(--font-size-5xl);
  position: absolute;
  top: -20px;
  left: -10px;
  color: var(--color-primary-light);
  opacity: 0.2;
}

.testimonial__author {
  display: flex;
  align-items: center;
}

.testimonial__author-image {
  width: 60px;
  height: 60px;
  border-radius: 50%;
  overflow: hidden;
  margin-right: var(--spacing-md);
}

.testimonial__author-image .image-placeholder {
  border-radius: 50%;
  min-height: 60px;
}

.testimonial__author-name {
  margin: 0 0 var(--spacing-xs);
  font-size: var(--font-size-md);
}

.testimonial__author-role {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

/* FAQ Section */
.faq {
  background-color: var(--color-gray-50);
}

.faq__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(500px, 1fr));
  gap: var(--spacing-xl);
  max-width: 1100px;
  margin: 0 auto;
}

.faq-item {
  background-color: white;
  border-radius: var(--border-radius-md);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-sm);
}

.faq-item__question {
  margin-top: 0;
  margin-bottom: var(--spacing-md);
  font-size: var(--font-size-lg);
  color: var(--color-primary-dark);
}

.faq-item__answer {
  margin-bottom: 0;
  color: var(--color-gray-600);
}

/* Contact Section */
.contact {
  background-color: white;
}

.contact__content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-xl);
}

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

.contact__item {
  text-align: center;
}

.contact__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--spacing-md);
}

.contact__title {
  margin-bottom: var(--spacing-sm);
  font-size: var(--font-size-lg);
}

.contact__detail {
  margin-bottom: 0;
}

.contact__map {
  border-radius: var(--border-radius-md);
  overflow: hidden;
  height: 300px;
}

.contact__map-placeholder {
  min-height: 300px;
}

/* Footer */
.footer {
  background-color: var(--color-gray-900);
  color: var(--color-gray-300);
  padding: var(--spacing-2xl) 0;
}

.footer__content {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  margin-bottom: var(--spacing-2xl);
}

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

.footer__logo {
  width: 40px;
  height: 40px;
  margin-bottom: var(--spacing-sm);
}

.footer__brand {
  color: white;
  margin: 0 0 var(--spacing-xs);
  font-size: var(--font-size-xl);
}

.footer__tagline {
  margin: 0;
  font-size: var(--font-size-sm);
  color: var(--color-gray-500);
}

.footer__links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-2xl);
}

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

.footer__list {
  list-style-type: none;
  padding-left: 0;
  margin-bottom: 0;
}

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

.footer__list a {
  color: var(--color-gray-400);
}

.footer__list a:hover {
  color: white;
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  padding-top: var(--spacing-xl);
  border-top: 1px solid var(--color-gray-800);
  font-size: var(--font-size-sm);
}

.footer__copyright, .footer__legal {
  margin-bottom: 0;
}

.footer__legal a {
  color: var(--color-gray-400);
}

.footer__legal a:hover {
  color: white;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .faq__grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: var(--font-size-2xl);
  }
  
  .hero__tagline {
    font-size: var(--font-size-xl);
  }
  
  .hero__description {
    font-size: var(--font-size-lg);
  }
  
  .steps {
    flex-direction: column;
    align-items: center;
  }
  
  .step {
    max-width: 100%;
    margin-bottom: var(--spacing-2xl);
  }
  
  .contact__content {
    grid-template-columns: 1fr;
  }
  
  .footer__content {
    flex-direction: column;
  }
  
  .footer__links {
    margin-top: var(--spacing-xl);
  }
  
  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .footer__copyright {
    margin-bottom: var(--spacing-md);
  }
}

@media (max-width: 576px) {
  section {
    padding: var(--spacing-2xl) 0;
  }
  
  .hero__brand {
    font-size: var(--font-size-3xl);
  }
  
  .products__grid {
    grid-template-columns: 1fr;
  }
  
  .product-card--featured {
    transform: none;
  }
}