.page-blog {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--background);
}

.page-blog__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 10px 0 60px 0; /* body đã có padding-top, đây là phần đệm thêm cho nội dung */
  overflow: hidden;
}

.page-blog__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.page-blog__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5); /* Giảm độ sáng để chữ dễ đọc */
}

.page-blog__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding: 20px;
  color: #ffffff;
}

.page-blog__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.2;
  color: var(--text-main);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.7);
}

.page-blog__subtitle {
  font-size: clamp(1rem, 2vw, 1.3rem);
  margin-bottom: 30px;
  color: var(--text-secondary);
  text-shadow: 1px 1px 2px rgba(0, 0, 0, 0.5);
}

.page-blog__cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 50px;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-blog__cta-button:hover {
  background: linear-gradient(180deg, #13994A 0%, #2AD16F 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__cta-button--gold {
  background: linear-gradient(180deg, #F2C14E 0%, #D4A73E 100%);
  color: #11271B;
}

.page-blog__cta-button--gold:hover {
  background: linear-gradient(180deg, #D4A73E 0%, #F2C14E 100%);
}

.page-blog__section {
  padding: 60px 20px;
  text-align: center;
}

.page-blog__section:nth-of-type(even) {
  background-color: var(--background-darker, #0A4B2C);
}

.page-blog__container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-blog__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  color: var(--text-main);
  margin-bottom: 40px;
  font-weight: 600;
}

.page-blog__section-title--light {
  color: #ffffff;
}

.page-blog__text-light {
  color: var(--text-secondary);
}

.page-blog__about-code .page-blog__content-wrapper {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 40px;
  text-align: left;
}

.page-blog__about-code .page-blog__text-block,
.page-blog__about-code .page-blog__image-block {
  flex: 1;
  min-width: 300px;
}

.page-blog__image {
  width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__inline-link {
  color: var(--glow);
  text-decoration: none;
  font-weight: bold;
}

.page-blog__inline-link:hover {
  text-decoration: underline;
}

.page-blog__highlight {
  color: var(--gold);
  font-weight: bold;
}

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

.page-blog__benefit-card,
.page-blog__tip-card {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  border: 1px solid var(--border);
  transition: transform 0.3s ease;
}

.page-blog__benefit-card:hover,
.page-blog__tip-card:hover {
  transform: translateY(-5px);
}

.page-blog__benefit-icon,
.page-blog__tip-image {
  width: 100%;
  height: auto;
  max-height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-blog__card-title {
  font-size: 1.5rem;
  color: var(--text-main);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-blog__card-text {
  color: var(--text-secondary);
}

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

.page-blog__step-item {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: left;
  border: 1px solid var(--border);
}

.page-blog__step-number {
  font-size: 2.5rem;
  font-weight: bold;
  color: var(--gold);
  margin-bottom: 15px;
  line-height: 1;
}

.page-blog__step-title {
  font-size: 1.6rem;
  color: var(--text-main);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-blog__step-description {
  color: var(--text-secondary);
}

.page-blog__cta-wrapper {
  margin-top: 50px;
}

.page-blog__cta-button--wide {
  min-width: 300px;
  padding: 18px 40px;
  font-size: 1.1rem;
}

.page-blog__faq-list {
  margin-top: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog__faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  text-align: left;
}

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  background-color: var(--card-bg);
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

.page-blog__faq-question::-webkit-details-marker {
  display: none;
}

.page-blog__faq-question:hover {
  background-color: var(--deep-green);
}

.page-blog__faq-toggle {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--glow);
  margin-left: 15px;
}

.page-blog__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-blog__faq-item[open] .page-blog__faq-answer {
  max-height: 500px; /* Adjust as needed for content length */
  padding-top: 15px;
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
  content: '−';
}

.page-blog__cta-bottom {
  background-color: var(--deep-green);
  color: #ffffff;
  padding: 80px 20px;
}

.page-blog__cta-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

/* Mobile responsiveness */
@media (max-width: 768px) {
  .page-blog {
    font-size: 16px;
    line-height: 1.6;
  }

  .page-blog__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
  }

  .page-blog__main-title {
    font-size: 2rem;
  }

  .page-blog__subtitle {
    font-size: 1rem;
  }

  .page-blog__cta-button {
    padding: 12px 25px;
    font-size: 0.9rem;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-blog__cta-button--wide {
    min-width: unset;
    padding: 15px 25px;
    font-size: 1rem;
  }

  .page-blog__section {
    padding: 40px 15px;
  }

  .page-blog__section-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
  }

  .page-blog__about-code .page-blog__content-wrapper {
    flex-direction: column;
  }

  .page-blog__about-code .page-blog__text-block,
  .page-blog__about-code .page-blog__image-block {
    min-width: unset;
    width: 100%;
  }

  .page-blog__image,
  .page-blog__benefit-icon,
  .page-blog__tip-image {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-blog__container,
  .page-blog__benefit-card,
  .page-blog__tip-card,
  .page-blog__step-item,
  .page-blog__faq-item,
  .page-blog__cta-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-blog__benefits-grid,
  .page-blog__tips-grid,
  .page-blog__guide-steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-blog__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-blog__faq-answer {
    padding: 0 20px 15px 20px;
  }

  .page-blog__cta-bottom {
    padding: 60px 15px;
  }

  /* Buttons within flex containers */
  .page-blog__cta-buttons {
    display: flex;
    flex-direction: column; /* Stack buttons vertically on mobile */
    gap: 10px;
  }

  /* Ensure all images and video containers are responsive */
  .page-blog img,
  .page-blog video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-blog__video-section,
  .page-blog__video-container,
  .page-blog__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  .page-blog__cta-button,
  .page-blog__btn-primary,
  .page-blog__btn-secondary,
  .page-blog a[class*="button"],
  .page-blog a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-blog__cta-buttons,
  .page-blog__button-group,
  .page-blog__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
  }
  .page-blog__cta-buttons {
    display: flex;
    flex-direction: column;
  }
}