:root {
  --primary-color: #2980B9;
  --secondary-color: #1F5F8B;
  --accent-color: #5DADE2;
  --light-color: #EBF5FB;
  --dark-color: #154360;
  --gradient-primary: linear-gradient(135deg, #5DADE2 0%, #2980B9 100%);
  --hover-color: #21618C;
  --background-color: #FDFDFE;
  --text-color: #34495D;
  --border-color: rgba(93, 173, 226, 0.25);
  --divider-color: rgba(31, 95, 139, 0.12);
  --shadow-color: rgba(41, 128, 185, 0.15);
  --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;
  overflow-x: hidden;
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.bg-pattern {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.4;
  pointer-events: none;
}

header {
  position: relative;
  z-index: 20;
  background: linear-gradient(135deg, #154360 0%, #1F5F8B 100%);
  padding: 1.5rem 2rem;
  box-shadow: 0 2px 8px var(--shadow-color);
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-icon {
  width: 42px;
  height: 42px;
}

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

.header-decoration {
  display: none;
}

main {
  flex: 1;
  position: relative;
  z-index: 10;
  padding: 3rem 1.5rem;
}

.product-container {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 2.5rem;
  align-items: start;
}

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

.product-image-wrapper {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 4px 12px var(--shadow-color);
  text-align: center;
}

.product-image-wrapper picture {
  display: block;
}

.product-image {
  width: 100%;
  max-width: 350px;
  height: auto;
  margin: 0 auto;
  display: block;
}

.guarantee-block {
  background: linear-gradient(135deg, #EBF5FB 0%, #D6EAF8 100%);
  border: 2px solid var(--accent-color);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 3px 10px var(--shadow-color);
  text-align: center;
}

.guarantee-block h3 {
  font-family: var(--main-font);
  font-size: 1.35rem;
  color: var(--secondary-color);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.guarantee-block p {
  font-size: 1rem;
  color: var(--text-color);
  line-height: 1.5;
}

.cta-button-wrapper {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.75rem;
  box-shadow: 0 3px 10px var(--shadow-color);
  text-align: center;
}

.price-tag {
  font-size: 2.25rem;
  font-weight: 700;
  font-family: var(--main-font);
  margin-bottom: 1.25rem;
  display: block;
}

.cta-button {
  display: inline-block;
  background: var(--gradient-primary);
  color: #FFFFFF;
  padding: 1rem 3rem;
  font-size: 1.15rem;
  font-weight: 700;
  border-radius: 50px;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(41, 128, 185, 0.3);
  border: none;
  cursor: pointer;
  font-family: var(--main-font);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(41, 128, 185, 0.4);
  background: linear-gradient(135deg, #2980B9 0%, #21618C 100%);
}

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

.description-block,
.highlight-block,
.features-list-block {
  background: #FFFFFF;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 3px 10px var(--shadow-color);
}

.description-block h2,
.features-list-block h3 {
  font-family: var(--main-font);
  font-size: 1.85rem;
  color: var(--primary-color);
  margin-bottom: 1rem;
  font-weight: 700;
}

.description-block p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--text-color);
  margin-bottom: 0.75rem;
}

.highlight-block {
  background: linear-gradient(135deg, #F8F9FA 0%, #FEF9E7 100%);
  border: 3px solid var(--highlight-color);
  text-align: center;
  padding: 2.25rem;
}

.highlight-block p {
  font-size: 1.35rem;
  font-weight: 700;
  font-family: var(--main-font);
  color: var(--dark-color);
  line-height: 1.6;
}

.highlight-price {
  font-size: 2rem;
  display: block;
  margin-top: 0.75rem;
}

.features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.feature-icon {
  width: 32px;
  height: 32px;
  flex-shrink: 0;
  color: var(--primary-color);
}

.feature-text {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--text-color);
}

.features-section {
  position: relative;
  z-index: 10;
  background: linear-gradient(135deg, #EBF5FB 0%, #D6EAF8 100%);
  padding: 4rem 1.5rem;
  margin-top: 3rem;
}

.features-container {
  max-width: 1400px;
  margin: 0 auto;
}

.features-title {
  font-family: var(--main-font);
  font-size: 2.25rem;
  color: var(--dark-color);
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 700;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2.5rem;
}

.feature-card {
  background: #FFFFFF;
  border-radius: 16px;
  padding: 2.25rem;
  text-align: center;
  box-shadow: 0 4px 12px var(--shadow-color);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px var(--shadow-color);
}

.feature-icon-circle {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.25rem;
}

.feature-icon-circle svg {
  width: 40px;
  height: 40px;
  color: #FFFFFF;
}

.feature-card h4 {
  font-family: var(--main-font);
  font-size: 1.35rem;
  color: var(--secondary-color);
  margin-bottom: 0.75rem;
  font-weight: 700;
}

.feature-card p {
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-color);
}

.testimonials-section {
  position: relative;
  z-index: 10;
  background: linear-gradient(135deg, #154360 0%, #1F5F8B 100%);
  padding: 4rem 1.5rem;
  color: #FFFFFF;
}

.testimonials-container {
  max-width: 1400px;
  margin: 0 auto;
}

.testimonials-title {
  font-family: var(--main-font);
  font-size: 2.25rem;
  text-align: center;
  margin-bottom: 3rem;
  font-weight: 700;
  color: #FFFFFF;
}

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

.testimonial-card {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

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

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: var(--gradient-primary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.testimonial-avatar svg {
  width: 28px;
  height: 28px;
  color: #FFFFFF;
}

.testimonial-info h4 {
  font-family: var(--main-font);
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.25rem;
}

.testimonial-rating {
  color: #F39C12;
  font-size: 0.95rem;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.95);
}

footer {
  position: relative;
  z-index: 20;
  background: linear-gradient(135deg, #0B2F47 0%, #154360 100%);
  color: rgba(255, 255, 255, 0.85);
  padding: 2.5rem 2rem 1.5rem;
}

.footer-container {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 2rem;
}

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

.footer-logo-icon {
  width: 38px;
  height: 38px;
}

.footer-logo-text {
  font-family: var(--main-font);
  font-size: 1.5rem;
  font-weight: 700;
  color: #FFFFFF;
}

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

.footer-nav a {
  color: rgba(255, 255, 255, 0.85);
  text-decoration: none;
  font-size: 0.95rem;
  transition: color 0.3s ease;
}

.footer-nav a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  max-width: 1400px;
  margin: 2rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  text-align: center;
  font-size: 0.9rem;
}

.footer-bottom a {
  color: var(--highlight-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

.footer-bottom a:hover {
  color: #FFFFFF;
}

@media (max-width: 968px) {
  .product-container {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

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

  .header-decoration {
    display: none !important;
  }

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

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

@media (min-width: 969px) {
  .header-decoration {
    display: flex;
    gap: 1rem;
    align-items: center;
  }

  .header-decoration-shape {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    animation: pulse 2s infinite;
  }

  .header-decoration-shape:nth-child(2) {
    width: 12px;
    height: 12px;
    animation-delay: 0.3s;
  }

  .header-decoration-shape:nth-child(3) {
    width: 10px;
    height: 10px;
    animation-delay: 0.6s;
  }
}

@keyframes pulse {
  0%, 100% {
    opacity: 0.4;
    transform: scale(1);
  }
  50% {
    opacity: 0.8;
    transform: scale(1.2);
  }
}