.page-about {
  color: #ffffff; /* Body background is dark, so text should be light */
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  background-color: #000000; /* Ensure main content area matches body background */
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-about__hero-section {
  position: relative;
  padding: 120px 0 60px; /* Adjusted padding-top to account for header-offset */
  background: linear-gradient(135deg, #26A9E0, #1a7bb0);
  text-align: center;
  overflow: hidden;
}

.page-about__hero-title {
  font-size: 3.5em;
  color: #FFFFFF;
  margin-bottom: 20px;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.page-about__hero-description {
  font-size: 1.3em;
  color: #f0f0f0;
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-about__hero-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.page-about__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  margin-top: 30px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.page-about__section-title {
  font-size: 2.5em;
  margin-bottom: 30px;
  text-align: center;
}

.page-about__introduction-section, .page-about__values-section, .page-about__responsibility-section, .page-about__cta-section {
  padding: 80px 0;
  background-color: #FFFFFF;
  color: #333333;
}

.page-about__history-section, .page-about__team-tech-section, .page-about__why-choose-us-section {
  padding: 80px 0;
  background-color: #000000;
  color: #FFFFFF;
}

.page-about__text-block {
  font-size: 1.1em;
  margin-bottom: 20px;
}

.page-about__highlight {
  color: #26A9E0;
  font-weight: bold;
}

.page-about__inline-link {
  color: #26A9E0;
  text-decoration: underline;
}

.page-about__content-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.page-about__text-content {
  font-size: 1.1em;
}

.page-about__image-sidebar {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-about__main-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 10px;
  margin-top: 40px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-about__value-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__card {
  background-color: #f8f8f8;
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: #333333;
}

.page-about__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

.page-about__card-title {
  font-size: 1.5em;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-about__card-text {
  font-size: 1em;
}

.page-about__feature-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
}

.page-about__feature-item {
  background-color: rgba(255, 255, 255, 0.1);
  margin-bottom: 15px;
  padding: 15px 20px;
  border-left: 5px solid #26A9E0;
  border-radius: 5px;
  font-size: 1.1em;
}

.page-about__advantages-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-about__advantage-card {
  background-color: rgba(255, 255, 255, 0.08);
  border-radius: 10px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  color: #FFFFFF;
}

.page-about__advantage-title {
  font-size: 1.6em;
  color: #26A9E0;
  margin-bottom: 15px;
}

.page-about__advantage-text {
  font-size: 1em;
}

.page-about__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.page-about__btn-primary, .page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

.page-about__btn-primary {
  background-color: #26A9E0;
  color: #FFFFFF;
  border: 2px solid #26A9E0;
}

.page-about__btn-primary:hover {
  background-color: #1a7bb0;
  border-color: #1a7bb0;
}

.page-about__btn-secondary {
  background-color: #FFFFFF;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-about__btn-secondary:hover {
  background-color: #f0f8ff;
  color: #1a7bb0;
  border-color: #1a7bb0;
}

.page-about__btn-large {
  font-size: 1.2em;
  padding: 18px 35px;
}

.page-about__cta-image {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 50px;
  border-radius: 10px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.1);
}

/* Fixed header offset for main content */
.page-about__hero-section {
  padding-top: var(--header-offset, 120px);
}

/* Mobile responsiveness */
@media (max-width: 992px) {
  .page-about__hero-title {
    font-size: 2.8em;
  }
  .page-about__section-title {
    font-size: 2em;
  }
  .page-about__content-grid {
    grid-template-columns: 1fr;
  }
  .page-about__image-sidebar {
    order: -1; /* Move image above text on mobile */
    margin-bottom: 30px;
  }
  .page-about__value-cards, .page-about__advantages-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .page-about__hero-section {
    padding-top: var(--header-offset, 120px) !important;
    padding-bottom: 40px;
  }
  .page-about__hero-title {
    font-size: 2em !important;
  }
  .page-about__hero-description {
    font-size: 1em !important;
    margin-bottom: 20px;
  }
  .page-about__hero-buttons {
    flex-direction: column;
    gap: 15px;
    margin-bottom: 20px;
  }
  .page-about__btn-primary, .page-about__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px !important;
    font-size: 1em !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-about__section-title {
    font-size: 1.8em !important;
  }
  .page-about__introduction-section, .page-about__history-section, .page-about__values-section, .page-about__team-tech-section, .page-about__responsibility-section, .page-about__why-choose-us-section, .page-about__cta-section {
    padding: 40px 0 !important;
  }
  .page-about__container {
    padding: 0 15px !important;
  }
  .page-about__text-block, .page-about__card-text, .page-about__feature-item, .page-about__advantage-text {
    font-size: 1em !important;
  }
  /* Images and video responsiveness */
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-about__hero-image, .page-about__image-sidebar, .page-about__main-image, .page-about__cta-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    box-sizing: border-box !important;
    margin-left: auto;
    margin-right: auto;
  }
  .page-about__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-about__card, .page-about__advantage-card {
    padding: 20px;
  }
}

/* Color contrast safety for dark background body */
.page-about__dark-bg {
  color: #ffffff;
}
.page-about__light-bg {
  color: #333333;
}

/* Ensure images do not use filter */
.page-about img {
  filter: none;
}