:root {
  --primary-color: #113B7A;
  --secondary-color: #1D5FD1;
  --card-bg: #10233F;
  --text-main: #F3F8FF;
  --text-secondary: #AFC4E8;
  --border-color: #244D84;
  --glow-color: #4FA8FF;
  --gold: #F2C14E;
  --divider: #1B3357;
  --deep-navy: #08162B;
}

/* body đã padding-top: var(--header-offset); trang này không được thêm lại biến đó */
.page-blog {
  color: var(--text-main); /* #F3F8FF */
  background-color: var(--deep-navy); /* #08162B */
  font-family: 'Arial', sans-serif; /* Example font */
  line-height: 1.6;
}

.page-blog__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  padding-top: 10px; /* Nhỏ gọn, không sử dụng var(--header-offset) */
  text-align: center;
  overflow: hidden;
}

.page-blog__hero-image {
  max-width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 8px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.page-blog__hero-content {
  margin-top: 40px;
  max-width: 800px;
  z-index: 1;
}

.page-blog__main-title {
  font-size: clamp(2rem, 4vw, 3.5rem); /* Responsive H1 font size */
  font-weight: 700;
  color: var(--text-main); /* #F3F8FF */
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-blog__description {
  font-size: 1.125rem;
  color: var(--text-secondary); /* #AFC4E8 */
  margin-bottom: 30px;
}

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

.page-blog__section-title {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 700;
  color: var(--text-main); /* #F3F8FF */
  text-align: center;
  margin-bottom: 50px;
  margin-top: 80px;
}

.page-blog__posts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-bottom: 50px;
}

.page-blog__post-card {
  background: var(--card-bg); /* #10233F */
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.page-blog__post-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.page-blog__post-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.page-blog__post-thumbnail {
  width: 100%;
  height: 225px; /* Fixed height for consistency */
  object-fit: cover;
  display: block;
}

.page-blog__post-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-blog__post-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-main); /* #F3F8FF */
  margin-bottom: 10px;
  line-height: 1.3;
}

.page-blog__post-excerpt {
  font-size: 0.95rem;
  color: var(--text-secondary); /* #AFC4E8 */
  margin-bottom: 15px;
  flex-grow: 1;
}

.page-blog__post-meta {
  font-size: 0.85rem;
  color: var(--text-secondary); /* #AFC4E8 */
  opacity: 0.8;
}

.page-blog__view-all {
  background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%); /* #113B7A to #1D5FD1 */
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.page-blog__link-all {
  color: var(--text-main); /* #F3F8FF */
  text-decoration: none;
  padding: 20px;
  display: block;
}

.page-blog__link-all .page-blog__post-title {
  font-size: 1.5rem;
  margin-bottom: 15px;
}

.page-blog__icon-arrow {
  font-size: 2rem;
  margin-top: 15px;
  display: block;
  transition: transform 0.3s ease;
}

.page-blog__view-all:hover .page-blog__icon-arrow {
  transform: translateX(10px);
}

.page-blog__cta-section {
  background: linear-gradient(90deg, var(--primary-color) 0%, var(--deep-navy) 100%); /* #113B7A to #08162B */
  padding: 80px 20px;
  text-align: center;
  margin-top: 60px;
  overflow: hidden;
}

.page-blog__cta-section .page-blog__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 40px;
}

.page-blog__cta-content {
  max-width: 700px;
  text-align: center;
}

.page-blog__cta-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  color: var(--gold); /* #F2C14E */
  margin-bottom: 20px;
  font-weight: 700;
}

.page-blog__cta-description {
  font-size: 1.1rem;
  color: var(--text-secondary); /* #AFC4E8 */
  margin-bottom: 30px;
}

.page-blog__btn-primary,
.page-blog__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: 2px solid transparent;
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-blog__btn-primary {
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  margin-right: 15px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-blog__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-blog__btn-secondary {
  background: #ffffff;
  color: var(--primary-color); /* #113B7A */
  border-color: var(--primary-color); /* #113B7A */
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.page-blog__btn-secondary:hover {
  background: var(--primary-color); /* #113B7A */
  color: #ffffff;
  transform: translateY(-3px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.2);
}

.page-blog__cta-image {
  max-width: 100%;
  height: auto;
  display: block;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

/* Responsive styles */
@media (min-width: 769px) {
  .page-blog__hero-section {
    padding: 80px 20px;
    padding-top: 10px; /* Keep small top padding */
  }

  .page-blog__hero-content {
    margin-top: 60px;
  }

  .page-blog__posts-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .page-blog__cta-section .page-blog__container {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
    text-align: left;
  }

  .page-blog__cta-content {
    text-align: left;
    margin-right: 40px;
  }
}

@media (max-width: 768px) {
  .page-blog__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important; /* body đã xử lý padding-top */
  }

  .page-blog__hero-content {
    margin-top: 30px;
  }

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

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

  .page-blog__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-blog__section-title {
    font-size: 1.8rem;
    margin-top: 60px;
    margin-bottom: 40px;
  }

  .page-blog__posts-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-blog__post-thumbnail {
    height: 180px; /* Adjust for mobile */
  }

  .page-blog__post-title {
    font-size: 1.2rem;
  }

  .page-blog__post-excerpt {
    font-size: 0.9rem;
  }

  .page-blog__cta-section {
    padding: 50px 15px;
  }

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

  .page-blog__cta-description {
    font-size: 1rem;
  }

  .page-blog__btn-primary,
  .page-blog__btn-secondary {
    width: 100% !important;
    margin-right: 0 !important;
    margin-bottom: 15px; /* Stack buttons vertically */
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-blog__cta-section .page-blog__container {
    flex-direction: column;
    gap: 30px;
  }

  .page-blog__cta-image {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
  }
  
  /* Mobile image responsiveness */
  .page-blog img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  
  .page-blog__hero-section,
  .page-blog__posts-section,
  .page-blog__cta-section,
  .page-blog__post-card,
  .page-blog__cta-content {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  
  .page-blog__cta-content div {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
  }
}