/* Modern Professional Design System */
:root {
  --primary: #c41e3a;
  --primary-dark: #a01729;
  --secondary: #165b33;
  --dark: #0f172a;
  --gray-900: #111827;
  --gray-800: #1f2937;
  --gray-700: #374151;
  --gray-600: #4b5563;
  --gray-500: #6b7280;
  --gray-400: #9ca3af;
  --gray-300: #d1d5db;
  --gray-200: #e5e7eb;
  --gray-100: #f3f4f6;
  --gray-50: #f9fafb;
  --white: #ffffff;
  
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1);
  --shadow-xl: 0 25px 50px -12px rgb(0 0 0 / 0.25);
  
  --radius-sm: 0.375rem;
  --radius: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-900);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
}

h1 { font-size: 3rem; }
h2 { font-size: 2.25rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

/* Navigation */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  transition: all 0.3s ease;
  border-bottom: 1px solid transparent;
}

.navbar-scrolled {
  background: rgba(255, 255, 255, 0.98);
  border-bottom-color: var(--gray-200);
  box-shadow: var(--shadow-sm);
}

.nav-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-brand {
  display: flex;
  flex-direction: column;
}

.brand-text {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  letter-spacing: -0.025em;
}

.brand-tag {
  font-size: 0.75rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: -0.125rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.nav-links a {
  font-weight: 500;
  color: var(--gray-700);
  transition: color 0.2s;
}

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

.nav-cta {
  background: var(--primary);
  color: var(--white) !important;
  padding: 0.625rem 1.5rem;
  border-radius: 9999px;
  font-weight: 600;
  transition: all 0.2s;
}

.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

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

.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--gray-700);
  transition: all 0.3s;
}

/* Hero Section */
.hero {
  padding-top: 100px;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, var(--gray-50) 0%, var(--white) 100%);
}

.hero-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.hero-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.hero-badge {
  display: inline-block;
  background: var(--primary);
  color: var(--white);
  padding: 0.375rem 1rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.5rem;
  letter-spacing: -0.025em;
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-bottom: 3rem;
}

.hero-stats {
  display: flex;
  gap: 3rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 1.875rem;
  font-weight: 700;
  color: var(--primary);
}

.stat-label {
  font-size: 0.875rem;
  color: var(--gray-500);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-image {
  position: relative;
}

.hero-image img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: all 0.2s;
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
}

.btn-large {
  padding: 1rem 2rem;
  font-size: 1.125rem;
}

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

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

.btn-outline {
  background: transparent;
  color: var(--gray-700);
  border-color: var(--gray-300);
}

.btn-outline:hover {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

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

.btn-white:hover {
  background: var(--gray-50);
  transform: translateY(-2px);
}

.btn-outline-white {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.3);
}

.btn-outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
}

.btn-arrow {
  transition: transform 0.2s;
}

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

/* Section Headers */
.section-label {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.75rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  margin-bottom: 1.25rem;
  letter-spacing: -0.025em;
}

.section-subtitle {
  font-size: 1.25rem;
  color: var(--gray-600);
  max-width: 800px;
  margin: 0 auto;
}

/* Product Demo Section */
.product-demo {
  padding: 5rem 0;
  background: var(--gray-50);
}

.demo-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.demo-header {
  text-align: center;
  margin-bottom: 4rem;
}

.demo-content {
  display: flex;
  flex-direction: column;
  width: 100%;
}

.demo-image {
  width: 100%;
  margin-bottom: 3rem;
}

.product-images {
  display: flex;
  gap: 3rem;
  align-items: flex-start;
  justify-content: center;
  width: 100%;
  margin-bottom: 2rem;
  max-width: 1600px;
  margin-left: auto;
  margin-right: auto;
  padding: 0 2rem;
}

.product-image-container {
  width: 48%;
  text-align: center;
  display: flex;
  flex-direction: column;
}

.product-images img {
  width: 100%;
  height: 500px;
  border-radius: var(--radius-lg);
  object-fit: contain;
  transition: transform 0.3s ease;
}

.product-images img:hover {
  transform: scale(1.02);
}

.product-caption {
  font-size: 1.05rem;
  color: var(--gray-700);
  line-height: 1.6;
  margin-top: 1.5rem;
  padding: 1rem 1.5rem;
  background: var(--gray-50);
  border-radius: var(--radius);
  font-weight: 500;
}

.demo-features {
  display: flex;
  gap: 3rem;
  justify-content: center;
  flex-wrap: nowrap;
  width: 100%;
  margin-bottom: 3rem;
  padding: 2rem;
  background: linear-gradient(to right, rgba(196, 30, 58, 0.03), rgba(22, 91, 51, 0.03));
  border-radius: var(--radius-lg);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.demo-feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--white);
  padding: 0.75rem 1.25rem;
  border-radius: 9999px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--gray-200);
  transition: all 0.2s;
}

.demo-feature:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.demo-feature svg {
  color: var(--secondary);
}

.demo-feature span {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--gray-700);
}

.demo-details {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  width: 100%;
}

.detail-card {
  background: var(--white);
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  transition: all 0.3s;
}

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

.detail-icon {
  color: var(--primary);
  margin-bottom: 1rem;
}

.detail-card h3 {
  font-size: 1.125rem;
  margin-bottom: 0.75rem;
}

.detail-card p {
  font-size: 0.875rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* Features Section */
.features {
  padding: 5rem 0;
  background: var(--white);
}

.features-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.features-header {
  text-align: center;
  margin-bottom: 4rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.feature {
  text-align: center;
  padding: 2rem;
  border-radius: var(--radius-lg);
  background: var(--gray-50);
  transition: all 0.3s;
}

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

.feature-icon {
  color: var(--primary);
  margin-bottom: 1.5rem;
  display: inline-block;
}

.feature h3 {
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.feature p {
  color: var(--gray-600);
  line-height: 1.6;
}

/* Testimonials */
.testimonials {
  padding: 5rem 0;
  background: var(--gray-50);
}

.testimonials-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.testimonials-header {
  text-align: center;
  margin-bottom: 4rem;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.testimonial {
  background: var(--white);
  padding: 2rem;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
}

.testimonial-stars {
  color: var(--primary);
  font-size: 1.25rem;
  margin-bottom: 1rem;
}

.testimonial-text {
  color: var(--gray-700);
  line-height: 1.6;
  margin-bottom: 1.5rem;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.testimonial-author strong {
  color: var(--gray-900);
}

.testimonial-author span {
  font-size: 0.875rem;
  color: var(--gray-500);
}

/* Pricing Section */
.pricing {
  padding: 5rem 0;
  background: var(--white);
}

.pricing-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.pricing-header {
  text-align: center;
  margin-bottom: 4rem;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.price-card {
  background: var(--white);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 2rem;
  text-align: center;
  transition: all 0.3s;
  cursor: pointer;
  position: relative;
}

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

.price-card.popular {
  border-color: var(--primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.05);
}

.price-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary);
  color: var(--white);
  padding: 0.25rem 1rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.price-quantity {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 1rem;
}

.price-amount {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 0.25rem;
  margin-bottom: 0.5rem;
}

.price-currency {
  font-size: 1.25rem;
  color: var(--gray-500);
}

.price-value {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--primary);
}

.price-unit {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.price-total {
  font-size: 1rem;
  color: var(--gray-700);
  margin-bottom: 1rem;
}

.price-ideal {
  font-size: 0.875rem;
  color: var(--gray-500);
}

.pricing-footer {
  text-align: center;
}

.pricing-note {
  font-size: 0.875rem;
  color: var(--gray-600);
  margin-bottom: 2rem;
}

.pricing-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* FAQ Section */
.faq {
  padding: 5rem 0;
  background: var(--gray-50);
}

.faq-container {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 2rem;
}

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

.faq-grid {
  display: grid;
  gap: 1rem;
}

.faq-item {
  background: var(--white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.faq-item summary {
  padding: 1.5rem;
  font-weight: 600;
  color: var(--gray-900);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s;
}

.faq-item summary:hover {
  background: var(--gray-50);
}

.faq-item summary::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--gray-400);
  transition: transform 0.3s;
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item p {
  padding: 0 1.5rem 1.5rem;
  color: var(--gray-600);
  line-height: 1.6;
}

/* CTA Section */
.cta-section {
  padding: 5rem 0;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--white);
}

.cta-container {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 2rem;
  text-align: center;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1rem;
}

.cta-subtitle {
  font-size: 1.25rem;
  opacity: 0.9;
  margin-bottom: 2rem;
}

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
}

/* Footer */
.footer {
  background: var(--gray-900);
  color: var(--white);
  padding: 4rem 0 2rem;
}

.footer-container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand h3 {
  color: var(--white);
  margin-bottom: 1rem;
}

.footer-brand p {
  color: var(--gray-400);
  line-height: 1.6;
}

.footer-links h4,
.footer-contact h4,
.footer-guarantee h4 {
  color: var(--white);
  font-size: 0.875rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 1rem;
}

.footer-links a,
.footer-contact a {
  display: block;
  color: var(--gray-400);
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

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

.footer-contact p,
.footer-guarantee p {
  color: var(--gray-400);
  line-height: 1.6;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 2rem;
  border-top: 1px solid var(--gray-800);
}

.footer-bottom p {
  color: var(--gray-500);
  font-size: 0.875rem;
}

.footer-legal {
  display: flex;
  gap: 2rem;
}

.footer-legal a {
  color: var(--gray-500);
  font-size: 0.875rem;
  transition: color 0.2s;
}

.footer-legal a:hover {
  color: var(--gray-400);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
  
  .nav-toggle {
    display: flex;
  }
  
  .nav-open .nav-links {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 2rem;
    box-shadow: var(--shadow-lg);
  }
  
  .hero-content {
    grid-template-columns: 1fr;
  }
  
  .hero-image {
    margin-top: 2rem;
  }
  
  .demo-content {
    grid-template-columns: 1fr;
  }
  
  .product-images {
    flex-direction: column;
    align-items: center;
    gap: 2rem;
    padding: 0 1rem;
  }
  
  .product-image-container {
    width: 100%;
    max-width: 500px;
  }
  
  .product-images img {
    width: 100%;
    height: auto;
    max-height: 400px;
  }
  
  .demo-features {
    flex-direction: column;
    gap: 1rem;
    padding: 1.5rem;
  }
  
  .demo-feature {
    padding: 0.75rem 1rem;
    justify-content: center;
  }
  
  .demo-feature span {
    font-size: 0.9rem;
  }
  
  .demo-details {
    grid-template-columns: 1fr 1fr;
  }
  
  .features-grid,
  .testimonials-grid,
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-content {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: 1rem;
    text-align: center;
  }
  
  .hero-actions {
    flex-direction: column;
  }
  
  .btn {
    width: 100%;
  }
  
  .hero-stats {
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 1.5rem;
  }
  
  .stat {
    min-width: 80px;
    text-align: center;
  }
  
  .stat-number {
    font-size: 1.5rem;
  }
  
  .stat-label {
    font-size: 0.75rem;
  }
  
  .cta-actions {
    flex-direction: column;
  }
}