.page-index-core-advantages {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main-color); /* Sử dụng màu Text Main #F3F8FF */
  background-color: var(--deep-navy); /* Body background from shared.css */
}

.page-index-core-advantages__section {
  padding: 60px 20px;
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-index-core-advantages__dark-bg {
  background-color: var(--deep-navy);
  color: var(--text-main-color);
}

.page-index-core-advantages__light-bg {
  background-color: #ffffff;
  color: var(--deep-navy);
}

.page-index-core-advantages__section-title {
  font-size: 36px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: var(--gold-color);
  line-height: 1.2;
  letter-spacing: -0.5px;
}

.page-index-core-advantages__paragraph {
  font-size: 18px;
  text-align: center;
  margin-bottom: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-secondary-color);
}

.page-index-core-advantages__intro-text {
  font-size: 20px;
  font-weight: 400;
  margin-top: 15px;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-secondary-color);
}

/* Hero Section */
.page-index-core-advantages__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, header offset from body */
  overflow: hidden;
  background-color: var(--deep-navy);
}

.page-index-core-advantages__hero-container {
  position: relative;
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.page-index-core-advantages__hero-image {
  width: 100%;
  margin-bottom: 30px;
  position: relative;
  z-index: 1;
}

.page-index-core-advantages__hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: 12px;
  object-fit: cover;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-index-core-advantages__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  padding: 20px;
  border-radius: 10px;
}

.page-index-core-advantages__hero-content h1 {
  font-size: clamp(28px, 4vw, 48px);
  font-weight: 800;
  color: var(--gold-color);
  margin-bottom: 15px;
  line-height: 1.2;
  letter-spacing: -1px;
}

.page-index-core-advantages__cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 18px;
  font-weight: bold;
  margin-top: 30px;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  border: none;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-index-core-advantages__cta-button:hover {
  background: linear-gradient(180deg, #1144A6 0%, #2B73F6 100%);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* Feature Grid */
.page-index-core-advantages__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-index-core-advantages__card {
  background-color: var(--card-bg-color); /* #10233F */
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color); /* #244D84 */
  color: var(--text-main-color);
}

.page-index-core-advantages__card:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.page-index-core-advantages__card-image {
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
  min-height: 200px; /* Minimum size requirement */
}

.page-index-core-advantages__card-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--gold-color);
}

.page-index-core-advantages__card-text {
  font-size: 16px;
  color: var(--text-secondary-color);
  margin-bottom: 20px;
}

.page-index-core-advantages__card-list {
  list-style: none;
  padding: 0;
  margin: 0 0 20px 0;
  text-align: left;
}

.page-index-core-advantages__card-list li {
  margin-bottom: 10px;
  font-size: 15px;
  color: var(--text-secondary-color);
  position: relative;
  padding-left: 25px;
}

.page-index-core-advantages__card-list li::before {
  content: '✓';
  color: var(--glow-color); /* #4FA8FF */
  position: absolute;
  left: 0;
  top: 0;
  font-weight: bold;
}

.page-index-core-advantages__cta-link {
  display: inline-block;
  margin-top: 15px;
  color: var(--glow-color);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.3s ease;
}

.page-index-core-advantages__cta-link:hover {
  color: var(--gold-color);
  text-decoration: underline;
}

/* FAQ Section */
.page-index-core-advantages__faq-section {
  background-color: #f9f9f9;
  color: #333333;
}

.page-index-core-advantages__faq-title {
  color: var(--deep-navy);
}

details.page-index-core-advantages__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.05);
}
details.page-index-core-advantages__faq-item summary.page-index-core-advantages__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}
details.page-index-core-advantages__faq-item summary.page-index-core-advantages__faq-question::-webkit-details-marker {
  display: none;
}
details.page-index-core-advantages__faq-item summary.page-index-core-advantages__faq-question:hover {
  background: #f5f5f5;
}
.page-index-core-advantages__faq-qtext {
  flex: 1;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}
.page-index-core-advantages__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-index-core-advantages__faq-item .page-index-core-advantages__faq-answer {
  padding: 0 20px 20px;
  background: #fcfcfc;
  border-top: 1px solid #eee;
  border-radius: 0 0 8px 8px;
  color: #555555;
}

.page-index-core-advantages__faq-answer p {
  margin-bottom: 10px;
  font-size: 15px;
  line-height: 1.6;
  color: #555555;
}

/* Bottom CTA Section */
.page-index-core-advantages__cta-bottom {
  text-align: center;
  padding-top: 80px;
  padding-bottom: 80px;
  background-color: var(--deep-navy);
  color: var(--text-main-color);
}

.page-index-core-advantages__cta-bottom .page-index-core-advantages__section-title {
  color: var(--gold-color);
}

.page-index-core-advantages__cta-bottom .page-index-core-advantages__paragraph {
  color: var(--text-secondary-color);
}

/* Custom Colors */
:root {
  --primary-color: #113B7A;
  --secondary-color: #1D5FD1;
  --button-gradient: linear-gradient(180deg, #2B73F6 0%, #1144A6 100%);
  --card-bg-color: #10233F;
  --text-main-color: #F3F8FF;
  --text-secondary-color: #AFC4E8;
  --border-color: #244D84;
  --glow-color: #4FA8FF;
  --gold-color: #F2C14E;
  --divider-color: #1B3357;
  --deep-navy: #08162B;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-index-core-advantages__section-title {
    font-size: 30px;
  }
  .page-index-core-advantages__paragraph {
    font-size: 16px;
  }
  .page-index-core-advantages__hero-content h1 {
    font-size: clamp(24px, 5vw, 40px);
  }
}

@media (max-width: 768px) {
  .page-index-core-advantages__hero-section {
    padding-top: 10px !important; /* Small top padding for mobile */
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-index-core-advantages__hero-image img {
    border-radius: 8px;
  }
  .page-index-core-advantages__hero-content h1 {
    font-size: clamp(22px, 6vw, 36px);
    margin-bottom: 10px;
  }
  .page-index-core-advantages__intro-text {
    font-size: 16px;
    margin-bottom: 30px;
  }
  .page-index-core-advantages__cta-button {
    padding: 12px 30px;
    font-size: 16px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-index-core-advantages__section {
    padding: 40px 15px;
  }
  .page-index-core-advantages__section-title {
    font-size: 26px;
    margin-bottom: 30px;
  }
  .page-index-core-advantages__card {
    padding: 25px;
  }
  .page-index-core-advantages__card-title {
    font-size: 20px;
  }
  .page-index-core-advantages__card-text, .page-index-core-advantages__card-list li {
    font-size: 14px;
  }
  .page-index-core-advantages__faq-section {
    padding: 40px 15px;
  }
  details.page-index-core-advantages__faq-item summary.page-index-core-advantages__faq-question {
    padding: 15px;
  }
  .page-index-core-advantages__faq-qtext {
    font-size: 15px;
  }
  .page-index-core-advantages__faq-toggle {
    font-size: 20px;
    width: 24px;
  }
  details.page-index-core-advantages__faq-item .page-index-core-advantages__faq-answer {
    padding: 0 15px 15px;
  }
  .page-index-core-advantages__faq-answer p {
    font-size: 14px;
  }

  /* Mobile image adaptation */
  .page-index-core-advantages img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-index-core-advantages__section,
  .page-index-core-advantages__card,
  .page-index-core-advantages__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  /* Mobile button container adaptation */
  .page-index-core-advantages__cta-buttons,
  .page-index-core-advantages__button-group,
  .page-index-core-advantages__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;
  }
}