:root {
  --primary-color: #2980B9;
  --secondary-color: #1A5A88;
  --accent-color: #3498DB;
  --light-color: #EBF5FB;
  --dark-color: #0F2C42;
  --gradient-primary: linear-gradient(135deg, #3498DB 0%, #2980B9 100%);
  --hover-color: #21618C;
  --background-color: #F8FBFD;
  --text-color: #34495D;
  --border-color: rgba(52, 152, 219, 0.2);
  --divider-color: rgba(26, 90, 136, 0.1);
  --shadow-color: rgba(26, 90, 136, 0.1);
  --highlight-color: #F39C12;
  --main-font: 'Roboto Condensed', sans-serif;
  --alt-font: 'Open Sans', sans-serif;
}

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

body {
  font-family: var(--alt-font);
  color: var(--text-color);
  background-color: var(--background-color);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--main-font);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.background-pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  opacity: 0.4;
}

header {
  background: linear-gradient(to right, var(--dark-color), var(--secondary-color));
  padding: 1.5rem 2rem;
  position: relative;
  overflow: hidden;
}

.header-decoration {
  position: absolute;
  top: 50%;
  right: 5%;
  transform: translateY(-50%);
  opacity: 0.15;
  pointer-events: none;
}

.logo-container {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  max-width: 1200px;
  margin: 0 auto;
}

.logo-icon {
  width: 48px;
  height: 48px;
}

.logo-text {
  font-family: var(--main-font);
  font-size: 1.75rem;
  font-weight: 700;
  color: white;
  letter-spacing: 0.5px;
}

main {
  flex: 1;
  display: flex;
  align-items: center;
  padding: 2rem 1rem;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
}

.product-section {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 2rem;
  align-items: start;
}

.left-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.product-image-wrapper {
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 12px var(--shadow-color);
}

.product-image {
  width: 100%;
  height: auto;
  display: block;
}

.guarantee-box {
  background: linear-gradient(135deg, var(--light-color), white);
  border: 2px solid var(--accent-color);
  border-radius: 12px;
  padding: 1.5rem;
  box-shadow: 0 4px 12px var(--shadow-color);
  position: relative;
  overflow: hidden;
}

.guarantee-box::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50%;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle, var(--accent-color) 0%, transparent 70%);
  opacity: 0.1;
}

.guarantee-box h3 {
  color: var(--primary-color);
  font-size: 1.3rem;
  margin-bottom: 0.75rem;
  position: relative;
}

.guarantee-box p {
  color: var(--text-color);
  line-height: 1.6;
  position: relative;
}

.cta-button {
  background: var(--gradient-primary);
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  font-weight: 600;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(41, 128, 185, 0.3);
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.cta-button:hover {
  background: linear-gradient(135deg, var(--hover-color) 0%, var(--secondary-color) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(41, 128, 185, 0.4);
}

.right-column {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.content-box {
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 4px 12px var(--shadow-color);
}

.content-box h2 {
  color: var(--primary-color);
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.content-box p {
  color: var(--text-color);
  line-height: 1.7;
  margin-bottom: 0.75rem;
}

.price-tag {
  background: var(--highlight-color);
  color: white;
  padding: 0.75rem 1.5rem;
  border-radius: 8px;
  font-size: 1.5rem;
  font-weight: 700;
  display: inline-block;
  margin: 1rem 0;
  box-shadow: 0 4px 8px rgba(243, 156, 18, 0.3);
}

.cta-highlight {
  background: linear-gradient(135deg, var(--highlight-color), #E67E22);
  color: white;
  padding: 1.5rem;
  border-radius: 12px;
  text-align: center;
  font-size: 1.2rem;
  font-weight: 600;
  box-shadow: 0 6px 16px rgba(243, 156, 18, 0.3);
  border: 3px solid var(--highlight-color);
}

.benefits-list {
  list-style: none;
  padding: 0;
}

.benefit-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem;
  margin-bottom: 1rem;
  background: var(--light-color);
  border-radius: 8px;
  border-left: 4px solid var(--accent-color);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
}

.benefit-text {
  color: var(--text-color);
  line-height: 1.6;
  font-size: 0.95rem;
}

.features-section {
  background: linear-gradient(to bottom, var(--light-color), white);
  padding: 3rem 1rem;
  margin-top: 2rem;
  border-top: 3px solid var(--accent-color);
}

.features-container {
  max-width: 100%;
  margin: 0 auto;
}

.features-title {
  text-align: center;
  font-size: 2rem;
  color: var(--primary-color);
  margin-bottom: 2.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.feature-card {
  background: white;
  border: 2px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 4px 12px var(--shadow-color);
  transition: transform 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
}

.feature-icon-wrapper {
  width: 80px;
  height: 80px;
  margin: 0 auto 1.5rem;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-icon {
  width: 48px;
  height: 48px;
}

.feature-title {
  font-size: 1.3rem;
  color: var(--primary-color);
  margin-bottom: 0.75rem;
}

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

.testimonials-section {
  background: linear-gradient(135deg, var(--secondary-color), var(--dark-color));
  padding: 3rem 1rem;
}

.testimonials-container {
  max-width: 100%;
  margin: 0 auto;
}

.testimonials-title {
  text-align: center;
  font-size: 2rem;
  color: white;
  margin-bottom: 2.5rem;
}

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

.testimonial-card {
  background: rgba(255, 255, 255, 0.95);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.2);
}

.testimonial-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1rem;
}

.testimonial-avatar {
  width: 56px;
  height: 56px;
  background: var(--gradient-primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1.5rem;
  font-weight: 700;
}

.testimonial-info h4 {
  color: var(--primary-color);
  margin-bottom: 0.25rem;
  font-size: 1.1rem;
}

.testimonial-rating {
  color: var(--highlight-color);
  font-size: 0.9rem;
}

.testimonial-text {
  color: var(--text-color);
  line-height: 1.7;
  font-style: italic;
}

footer {
  background: linear-gradient(to right, var(--dark-color), var(--secondary-color));
  color: white;
  padding: 2rem;
}

.footer-content {
  max-width: 100%;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

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

.footer-logo-text {
  font-family: var(--main-font);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.footer-nav ul {
  list-style: none;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
}

.footer-nav a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color 0.3s ease;
  font-size: 0.95rem;
}

.footer-nav a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
  margin-top: 2rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.2);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.9rem;
}

.footer-bottom a {
  color: var(--accent-color);
  text-decoration: none;
}

.footer-bottom a:hover {
  text-decoration: underline;
}

@media (max-width: 768px) {
  .header-decoration {
    display: none;
  }

  .product-section {
    grid-template-columns: 1fr;
  }

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

  .footer-content {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .footer-nav ul {
    flex-direction: column;
    gap: 1rem;
    align-items: center;
  }

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

  .logo-text {
    font-size: 1.4rem;
  }
}