/* style/blog.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần thêm padding-top cho main hoặc hero section. */

:root {
  --page-blog-primary-color: #11A84E;
  --page-blog-secondary-color: #22C768;
  --page-blog-bg-color: #08160F;
  --page-blog-card-bg: #11271B;
  --page-blog-text-main: #F2FFF6;
  --page-blog-text-secondary: #A7D9B8;
  --page-blog-border-color: #2E7A4E;
  --page-blog-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --page-blog-light-text: #333333; /* For light backgrounds */
}

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

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

/* --- Hero Section --- */
.page-blog__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 10px 0 60px 0; /* Small top padding, more bottom padding */
  background-color: var(--page-blog-bg-color);
  overflow: hidden;
}

.page-blog__hero-image-wrapper {
  width: 100%;
  max-height: 700px; /* Limit height for hero image */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-blog__hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.page-blog__hero-content {
  text-align: center;
  padding: 40px 20px;
  max-width: 900px;
  margin-top: 40px;
  z-index: 1;
}

.page-blog__main-title {
  font-size: clamp(2em, 4vw, 3em);
  font-weight: 700;
  color: var(--page-blog-text-main);
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-blog__subtitle {
  font-size: 1.1em;
  color: var(--page-blog-text-secondary);
  margin-bottom: 30px;
}

.page-blog__hero-cta {
  display: inline-block;
  padding: 15px 30px;
  font-size: 1.1em;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

/* --- General Section Styling --- */
.page-blog__introduction-section,
.page-blog__content-area,
.page-blog__promotions-section,
.page-blog__guide-section,
.page-blog__security-section,
.page-blog__experience-section,
.page-blog__related-posts-section,
.page-blog__faq-section,
.page-blog__conclusion-section {
  padding: 80px 0;
}

.page-blog__dark-section {
  background-color: var(--page-blog-bg-color);
  color: var(--page-blog-text-main);
}

.page-blog__light-bg {
  background-color: #F2FFF6; /* Light background for contrast */
  color: var(--page-blog-light-text);
}

.page-blog__section-title {
  font-size: 2.5em;
  font-weight: 700;
  color: var(--page-blog-text-main);
  text-align: center;
  margin-bottom: 40px;
  position: relative;
  padding-bottom: 15px;
}

.page-blog__light-bg .page-blog__section-title,
.page-blog__light-bg .page-blog__text-block {
  color: var(--page-blog-light-text);
}

.page-blog__section-title::after {
  content: '';
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background: var(--page-blog-primary-color);
  border-radius: 2px;
}

.page-blog__text-block {
  font-size: 1.1em;
  margin-bottom: 20px;
  color: var(--page-blog-text-secondary);
  text-align: center;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-blog__light-bg .page-blog__text-block {
  color: var(--page-blog-light-text);
}

/* --- Card Styling --- */
.page-blog__card {
  background-color: var(--page-blog-card-bg);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  border: 1px solid var(--page-blog-border-color);
}

.page-blog__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
}

.page-blog__card-title {
  font-size: 1.5em;
  font-weight: 600;
  color: var(--page-blog-text-main);
  margin-bottom: 15px;
  line-height: 1.3;
}

.page-blog__card-title a {
  color: inherit;
  text-decoration: none;
}

.page-blog__card-title a:hover {
  color: var(--page-blog-primary-color);
}

.page-blog__card-text {
  font-size: 1em;
  color: var(--page-blog-text-secondary);
  flex-grow: 1;
  margin-bottom: 20px;
}

/* --- Buttons --- */
.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  font-size: 1em;
  font-weight: 600;
  border-radius: 8px;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  box-sizing: border-box;
  white-space: normal; /* Allow text wrapping */
  word-wrap: break-word; /* Allow text wrapping */
}

.page-blog__btn-primary {
  background: var(--page-blog-button-gradient);
  color: var(--page-blog-text-main);
  border: none;
}

.page-blog__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(34, 199, 104, 0.4);
}

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

.page-blog__btn-secondary:hover {
  background-color: var(--page-blog-primary-color);
  color: var(--page-blog-text-main);
  transform: translateY(-3px);
}

/* --- Feature Grid (Products) --- */
.page-blog__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog__feature-card .page-blog__btn-secondary {
  margin-top: auto;
}

/* --- Promotions Section --- */
.page-blog__promotion-list {
  list-style: none;
  padding: 0;
  margin: 50px auto 0 auto;
  max-width: 900px;
}

.page-blog__promotion-item {
  background-color: #F2FFF6; /* Light background for contrast */
  padding: 30px;
  border-radius: 12px;
  margin-bottom: 20px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  text-align: left;
  border: 1px solid #e0e0e0;
}

.page-blog__promotion-item:last-child {
  margin-bottom: 0;
}

.page-blog__promotion-heading {
  font-size: 1.8em;
  font-weight: 600;
  color: var(--page-blog-light-text);
  margin-bottom: 15px;
}

.page-blog__promotion-description {
  font-size: 1.1em;
  color: var(--page-blog-light-text);
}

.page-blog__promotions-cta {
  margin-top: 40px;
}

/* --- Guide Section --- */
.page-blog__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog__guide-step-card {
  padding: 40px 30px;
}

.page-blog__step-heading {
  font-size: 1.6em;
  font-weight: 600;
  color: var(--page-blog-text-main);
  margin-bottom: 15px;
}

.page-blog__step-text {
  font-size: 1em;
  color: var(--page-blog-text-secondary);
  margin-bottom: 25px;
  flex-grow: 1;
}

/* --- Security Section --- */
.page-blog__security-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog__security-item {
  background-color: #F2FFF6; /* Light background for contrast */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
  text-align: center;
  border: 1px solid #e0e0e0;
}

.page-blog__security-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
}

.page-blog__feature-heading {
  font-size: 1.6em;
  font-weight: 600;
  color: var(--page-blog-light-text);
  margin-bottom: 10px;
}

.page-blog__feature-description {
  font-size: 1em;
  color: var(--page-blog-light-text);
}

.page-blog__security-cta {
  margin-top: 40px;
}

/* --- Experience Section --- */
.page-blog__experience-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog__experience-item {
  background-color: var(--page-blog-card-bg);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid var(--page-blog-border-color);
}

.page-blog__experience-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
}

/* --- Related Posts Section --- */
.page-blog__blog-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-blog__blog-card {
  background-color: #F2FFF6; /* Light background for contrast */
  border: 1px solid #e0e0e0;
  text-align: left;
  padding: 0;
  overflow: hidden;
}

.page-blog__blog-card .page-blog__card-image {
  border-radius: 12px 12px 0 0;
  height: 220px;
}

.page-blog__blog-card .page-blog__card-content {
  padding: 25px;
  display: flex;
  flex-direction: column;
  height: calc(100% - 220px); /* Adjust height based on image */
}

.page-blog__blog-card .page-blog__card-title {
  font-size: 1.4em;
  color: var(--page-blog-light-text);
  margin-bottom: 10px;
  flex-grow: 0;
}

.page-blog__blog-card .page-blog__card-title a {
  color: var(--page-blog-light-text);
}

.page-blog__blog-card .page-blog__card-title a:hover {
  color: var(--page-blog-primary-color);
}

.page-blog__blog-card .page-blog__card-meta {
  font-size: 0.9em;
  color: #777;
  margin-bottom: 15px;
}

.page-blog__blog-card .page-blog__card-text {
  font-size: 1em;
  color: var(--page-blog-light-text);
  text-align: left;
  flex-grow: 1;
  margin-bottom: 20px;
}

.page-blog__blog-card .page-blog__btn-secondary {
  margin-top: auto;
  align-self: flex-start;
}

.page-blog__view-all-cta {
  margin-top: 50px;
}

/* --- FAQ Section --- */
.page-blog__faq-list {
  max-width: 900px;
  margin: 50px auto 0 auto;
}

.page-blog__faq-item {
  background-color: var(--page-blog-card-bg);
  border: 1px solid var(--page-blog-border-color);
  border-radius: 12px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-blog__faq-item:last-child {
  margin-bottom: 0;
}

.page-blog__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: 600;
  color: var(--page-blog-text-main);
  cursor: pointer;
  background-color: var(--page-blog-card-bg);
  border-bottom: 1px solid var(--page-blog-border-color);
}

.page-blog__faq-item[open] .page-blog__faq-question {
  border-bottom: 1px solid var(--page-blog-border-color);
}

.page-blog__faq-item:not([open]) .page-blog__faq-question {
  border-bottom: none;
}

.page-blog__faq-item details > summary {
  list-style: none;
}

.page-blog__faq-item details > summary::-webkit-details-marker {
  display: none;
}

.page-blog__faq-qtext {
  flex-grow: 1;
  padding-right: 15px;
}

.page-blog__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-blog__faq-item[open] .page-blog__faq-toggle {
  transform: rotate(45deg);
}

.page-blog__faq-answer {
  padding: 15px 25px 25px 25px;
  font-size: 1.1em;
  color: var(--page-blog-text-secondary);
  text-align: left;
}

/* --- Conclusion Section --- */
.page-blog__conclusion-cta {
  margin-top: 40px;
}

/* --- Floating CTA --- */
.page-blog__floating-cta {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 1000;
}

.page-blog__floating-btn {
  background: var(--page-blog-button-gradient);
  color: var(--page-blog-text-main);
  padding: 15px 25px;
  border-radius: 30px;
  box-shadow: 0 4px 15px rgba(34, 199, 104, 0.6);
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1em;
  transition: all 0.3s ease;
  display: block;
  text-align: center;
}

.page-blog__floating-btn:hover {
  transform: translateY(-5px) scale(1.05);
  box-shadow: 0 8px 20px rgba(34, 199, 104, 0.8);
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .page-blog__main-title {
    font-size: clamp(1.8em, 5vw, 2.5em);
  }

  .page-blog__section-title {
    font-size: 2em;
  }

  .page-blog__hero-content {
    padding: 30px 20px;
  }
}

@media (max-width: 768px) {
  .page-blog__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-blog__main-title {
    font-size: clamp(1.5em, 6vw, 2.2em);
  }

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

  .page-blog__hero-cta {
    padding: 12px 25px;
    font-size: 1em;
  }

  .page-blog__introduction-section,
  .page-blog__content-area,
  .page-blog__promotions-section,
  .page-blog__guide-section,
  .page-blog__security-section,
  .page-blog__experience-section,
  .page-blog__related-posts-section,
  .page-blog__faq-section,
  .page-blog__conclusion-section {
    padding: 60px 0;
  }

  .page-blog__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-blog__text-block {
    font-size: 1em;
  }

  /* Image Responsive Adaptation */
  .page-blog img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-blog__hero-image {
    max-height: 400px;
  }

  .page-blog__card-image {
    height: 180px;
  }

  .page-blog__security-icon,
  .page-blog__experience-icon {
    width: 80px;
    height: 80px;
  }

  .page-blog__section,
  .page-blog__card,
  .page-blog__container,
  .page-blog__hero-section,
  .page-blog__hero-image-wrapper,
  .page-blog__hero-content,
  .page-blog__feature-grid,
  .page-blog__promotion-list,
  .page-blog__promotion-item,
  .page-blog__guide-steps,
  .page-blog__guide-step-card,
  .page-blog__security-features,
  .page-blog__security-item,
  .page-blog__experience-features,
  .page-blog__experience-item,
  .page-blog__blog-grid,
  .page-blog__blog-card,
  .page-blog__faq-list,
  .page-blog__faq-item,
  .page-blog__faq-question,
  .page-blog__faq-answer {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .page-blog__hero-section,
  .page-blog__introduction-section,
  .page-blog__content-area,
  .page-blog__promotions-section,
  .page-blog__guide-section,
  .page-blog__security-section,
  .page-blog__experience-section,
  .page-blog__related-posts-section,
  .page-blog__faq-section,
  .page-blog__conclusion-section {
    padding-left: 0 !important;
    padding-right: 0 !important;
  }

  .page-blog__hero-section {
    padding-top: 10px !important; /* body already handles --header-offset */
  }

  /* Button Responsive Adaptation */
  .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;
    display: flex;
    flex-direction: column; /* Stack buttons vertically */
  }

  .page-blog__floating-cta {
    bottom: 15px;
    right: 15px;
  }

  .page-blog__floating-btn {
    padding: 12px 20px;
    font-size: 1em;
  }
}

@media (max-width: 480px) {
  .page-blog__main-title {
    font-size: clamp(1.3em, 7vw, 1.8em);
  }

  .page-blog__section-title {
    font-size: 1.5em;
  }

  .page-blog__promotion-heading {
    font-size: 1.4em;
  }

  .page-blog__step-heading,
  .page-blog__feature-heading {
    font-size: 1.3em;
  }
}