/* style/blog-bsport-introduction.css */
/* body đã padding-top: var(--header-offset) từ shared.css, không lặp lại ở đây */

:root {
  --bsport-primary: #11A84E;
  --bsport-secondary: #22C768;
  --bsport-bg-dark: #08160F;
  --bsport-card-bg: #11271B;
  --bsport-text-main: #F2FFF6;
  --bsport-text-secondary: #A7D9B8;
  --bsport-border: #2E7A4E;
  --bsport-glow: #57E38D;
  --bsport-gold: #F2C14E;
  --bsport-divider: #1E3A2A;
  --bsport-deep-green: #0A4B2C;
  --bsport-btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

.page-blog-bsport-introduction {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--bsport-text-main); /* Default text color for dark body background */
  background-color: var(--bsport-bg-dark); /* Ensure consistency if body bg is not fully dark */
}

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

.page-blog-bsport-introduction__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 0;
  padding-top: 10px; /* Small top padding, body handles header offset */
  background-color: var(--bsport-bg-dark);
  overflow: hidden;
}

.page-blog-bsport-introduction__hero-image-wrapper {
  width: 100%;
  max-height: 675px;
  overflow: hidden;
  position: relative;
}

.page-blog-bsport-introduction__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: none; /* No image filters */
}

.page-blog-bsport-introduction__hero-content {
  text-align: center;
  padding: 40px 20px;
  max-width: 900px;
  margin-top: 20px; /* Separates content from image */
  color: var(--bsport-text-main);
  background-color: var(--bsport-card-bg);
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-blog-bsport-introduction__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  font-weight: 700;
  line-height: 1.2;
  color: var(--bsport-gold);
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.page-blog-bsport-introduction__main-description {
  font-size: 1.1rem;
  color: var(--bsport-text-secondary);
  margin-bottom: 30px;
}

.page-blog-bsport-introduction__cta-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 15px;
  justify-content: center;
  margin-top: 20px;
  width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-blog-bsport-introduction__btn-primary,
.page-blog-bsport-introduction__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
  max-width: 100%; /* Ensure buttons don't overflow */
}

.page-blog-bsport-introduction__btn-primary {
  background: var(--bsport-btn-gradient);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-blog-bsport-introduction__btn-primary:hover {
  box-shadow: 0 0 15px var(--bsport-glow);
  transform: translateY(-2px);
}

.page-blog-bsport-introduction__btn-secondary {
  background-color: transparent;
  color: var(--bsport-primary);
  border: 2px solid var(--bsport-primary);
}

.page-blog-bsport-introduction__btn-secondary:hover {
  background-color: var(--bsport-primary);
  color: #ffffff;
  transform: translateY(-2px);
}

.page-blog-bsport-introduction__section-title {
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  font-weight: 700;
  color: var(--bsport-gold);
  text-align: center;
  margin-bottom: 30px;
  margin-top: 40px;
}

.page-blog-bsport-introduction__sub-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 600;
  color: var(--bsport-primary);
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-blog-bsport-introduction__paragraph {
  font-size: 1rem;
  color: var(--bsport-text-secondary);
  margin-bottom: 15px;
  line-height: 1.7;
}

.page-blog-bsport-introduction__content-image {
  width: 100%;
  height: auto;
  display: block;
  margin: 30px auto;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  filter: none; /* No image filters */
  min-width: 200px; /* Minimum size */
  min-height: 200px; /* Minimum size */
}

.page-blog-bsport-introduction__list {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 20px;
  color: var(--bsport-text-secondary);
}

.page-blog-bsport-introduction__list-item {
  margin-bottom: 10px;
  font-size: 1rem;
}

.page-blog-bsport-introduction__video-section {
  padding: 60px 0;
  background-color: var(--bsport-card-bg);
  text-align: center;
  color: var(--bsport-text-main);
}

.page-blog-bsport-introduction__video-wrapper {
  position: relative;
  width: 100%;
  max-width: 1000px; /* Max width for video */
  margin: 30px auto;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  border-radius: 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-blog-bsport-introduction__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  filter: none; /* No video filters */
}

.page-blog-bsport-introduction__introduction-section,
.page-blog-bsport-introduction__user-experience-section,
.page-blog-bsport-introduction__support-security-section,
.page-blog-bsport-introduction__faq-section {
  background-color: var(--bsport-bg-dark);
  color: var(--bsport-text-main);
  padding: 60px 0;
}

.page-blog-bsport-introduction__products-section,
.page-blog-bsport-introduction__promotions-section,
.page-blog-bsport-introduction__registration-section,
.page-blog-bsport-introduction__conclusion-section {
  background-color: var(--bsport-card-bg);
  color: var(--bsport-text-main);
  padding: 60px 0;
}

.page-blog-bsport-introduction__product-grid,
.page-blog-bsport-introduction__promotion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
  margin-bottom: 40px;
}

.page-blog-bsport-introduction__product-card,
.page-blog-bsport-introduction__promotion-card {
  background-color: var(--bsport-bg-dark);
  border: 1px solid var(--bsport-border);
  border-radius: 8px;
  padding: 25px;
  text-align: center;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease;
  color: var(--bsport-text-main);
}

.page-blog-bsport-introduction__product-card:hover,
.page-blog-bsport-introduction__promotion-card:hover {
  transform: translateY(-5px);
}

.page-blog-bsport-introduction__product-image,
.page-blog-bsport-introduction__promotion-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 6px;
  margin-bottom: 20px;
  filter: none; /* No image filters */
  min-width: 200px; /* Minimum size */
  min-height: 200px; /* Minimum size */
}

.page-blog-bsport-introduction__product-title,
.page-blog-bsport-introduction__promotion-title {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--bsport-primary);
  margin-bottom: 10px;
}

.page-blog-bsport-introduction__product-description,
.page-blog-bsport-introduction__promotion-description {
  font-size: 0.95rem;
  color: var(--bsport-text-secondary);
  margin-bottom: 20px;
  line-height: 1.6;
}

.page-blog-bsport-introduction__cta-full-width {
  text-align: center;
  margin-top: 30px;
}

.page-blog-bsport-introduction__step-list {
  list-style: none;
  counter-reset: step-counter;
  padding: 0;
  margin-top: 30px;
}

.page-blog-bsport-introduction__step-item {
  counter-increment: step-counter;
  margin-bottom: 20px;
  padding-left: 40px;
  position: relative;
  font-size: 1.1rem;
  color: var(--bsport-text-main);
}

.page-blog-bsport-introduction__step-item::before {
  content: counter(step-counter);
  position: absolute;
  left: 0;
  top: 0;
  background-color: var(--bsport-primary);
  color: #ffffff;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: bold;
  font-size: 1rem;
}

.page-blog-bsport-introduction__faq-list {
  margin-top: 40px;
}

.page-blog-bsport-introduction__faq-item {
  background-color: var(--bsport-card-bg);
  border: 1px solid var(--bsport-border);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--bsport-text-main);
}

.page-blog-bsport-introduction__faq-item summary {
  list-style: none; /* Remove default marker */
  cursor: pointer;
  padding: 20px 25px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--bsport-primary);
  transition: background-color 0.3s ease;
}

.page-blog-bsport-introduction__faq-item summary::-webkit-details-marker {
  display: none; /* Hide default marker for webkit browsers */
}

.page-blog-bsport-introduction__faq-item summary:hover {
  background-color: var(--bsport-deep-green);
}

.page-blog-bsport-introduction__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--bsport-gold);
}

.page-blog-bsport-introduction__faq-item[open] .page-blog-bsport-introduction__faq-toggle {
  content: "−"; /* Change to minus when open */
}

.page-blog-bsport-introduction__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  color: var(--bsport-text-secondary);
  line-height: 1.7;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-blog-bsport-introduction__hero-content {
    padding: 30px 20px;
    margin-top: 10px;
  }
  .page-blog-bsport-introduction__section-title {
    margin-top: 30px;
    margin-bottom: 25px;
  }
  .page-blog-bsport-introduction__product-grid,
  .page-blog-bsport-introduction__promotion-grid {
    gap: 20px;
  }
}

@media (max-width: 768px) {
  .page-blog-bsport-introduction__container {
    padding: 0 15px;
  }

  .page-blog-bsport-introduction__hero-section {
    padding: 40px 0;
    padding-top: 10px !important;
  }

  .page-blog-bsport-introduction__hero-content {
    padding: 25px 15px;
    margin-top: 0;
  }

  .page-blog-bsport-introduction__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }

  .page-blog-bsport-introduction__main-description {
    font-size: 1rem;
  }

  .page-blog-bsport-introduction__cta-buttons {
    flex-direction: column;
    gap: 10px;
    padding: 0 15px;
  }

  .page-blog-bsport-introduction__btn-primary,
  .page-blog-bsport-introduction__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-blog-bsport-introduction__section-title {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    margin-top: 25px;
    margin-bottom: 20px;
  }

  .page-blog-bsport-introduction__sub-title {
    font-size: clamp(1.2rem, 4vw, 1.8rem);
    margin-top: 25px;
    margin-bottom: 10px;
  }

  .page-blog-bsport-introduction__paragraph,
  .page-blog-bsport-introduction__list-item,
  .page-blog-bsport-introduction__step-item,
  .page-blog-bsport-introduction__faq-answer {
    font-size: 0.95rem;
  }

  .page-blog-bsport-introduction img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    min-width: 200px !important; /* Enforce min size even on mobile */
    min-height: 200px !important; /* Enforce min size even on mobile */
  }

  .page-blog-bsport-introduction__section,
  .page-blog-bsport-introduction__card,
  .page-blog-bsport-introduction__container,
  .page-blog-bsport-introduction__product-card,
  .page-blog-bsport-introduction__promotion-card {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-blog-bsport-introduction__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset */
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-blog-bsport-introduction__video-container,
  .page-blog-bsport-introduction__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
    margin-left: 0;
    margin-right: 0;
  }

  .page-blog-bsport-introduction__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-blog-bsport-introduction__faq-item summary {
    padding: 15px 20px;
    font-size: 1rem;
  }

  .page-blog-bsport-introduction__faq-answer {
    padding: 0 20px 15px;
  }
}