/* General styles for the doi-tac-va-lien-ket page */
.page-doi-tac-va-lien-ket {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main-color, #1F2D3D); /* Default to Text Main if body background is light */
  background-color: var(--background-color, #F4F7FB); /* Using custom background color */
}

/* Adjust text color based on background luminance - assuming body is light, default text is dark */
/* If a section has a dark background, its text should be white */
.page-doi-tac-va-lien-ket__dark-bg {
  background-color: var(--primary-color, #2F6BFF); /* Using main brand color as dark background */
  color: #ffffff; /* White text for dark background */
}

.page-doi-tac-va-lien-ket__light-bg {
  background-color: var(--bg-card-color, #FFFFFF); /* Using card background color as light background */
  color: var(--text-main-color, #1F2D3D); /* Dark text for light background */
}

.page-doi-tac-va-lien-ket__heading {
  font-size: 2.5em;
  font-weight: bold;
  color: var(--text-main-color, #1F2D3D);
  text-align: center;
  margin-bottom: 40px;
  margin-top: 60px;
}

.page-doi-tac-va-lien-ket__heading--white {
  color: #ffffff;
}

.page-doi-tac-va-lien-ket__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-doi-tac-va-lien-ket__section {
  padding: 60px 0;
}

/* Hero Section */
.page-doi-tac-va-lien-ket__hero-section {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column; /* Ensure image is above text */
  padding-top: 10px; /* Small top padding, assuming shared.css handles body padding-top */
  padding-bottom: 60px;
  background-color: var(--primary-color, #2F6BFF);
}

.page-doi-tac-va-lien-ket__hero-image {
  width: 100%;
  height: auto;
  max-height: 600px; /* Limit hero image height */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
}

.page-doi-tac-va-lien-ket__hero-image img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  min-width: 200px; /* Minimum image size */
  min-height: 200px; /* Minimum image size */
}

.page-doi-tac-va-lien-ket__hero-content {
  text-align: center;
  padding: 40px 20px 0;
  max-width: 900px;
  margin: 0 auto;
  color: #ffffff;
}

.page-doi-tac-va-lien-ket__main-title {
  font-size: clamp(2.2em, 4vw, 3.2em); /* Use clamp for H1 */
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: #ffffff;
  max-width: 90%;
  margin-left: auto;
  margin-right: auto;
}

.page-doi-tac-va-lien-ket__hero-description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: rgba(255, 255, 255, 0.9);
}

.page-doi-tac-va-lien-ket__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  box-sizing: border-box;
  padding: 0 15px;
}

.page-doi-tac-va-lien-ket__btn-primary,
.page-doi-tac-va-lien-ket__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  min-width: 200px; /* Minimum button width */
  text-align: center;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-doi-tac-va-lien-ket__btn-primary {
  background: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  color: #ffffff;
  border: 2px solid transparent;
}

.page-doi-tac-va-lien-ket__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-doi-tac-va-lien-ket__btn-secondary {
  background: #ffffff;
  color: var(--primary-color, #2F6BFF);
  border: 2px solid var(--primary-color, #2F6BFF);
}

.page-doi-tac-va-lien-ket__btn-secondary:hover {
  background: var(--primary-color, #2F6BFF);
  color: #ffffff;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

.page-doi-tac-va-lien-ket__text-block {
  font-size: 1.1em;
  margin-bottom: 20px;
  text-align: justify;
}

.page-doi-tac-va-lien-ket__text-block--white {
  color: rgba(255, 255, 255, 0.9);
}

.page-doi-tac-va-lien-ket__highlight-text {
  color: var(--primary-color, #2F6BFF);
  font-weight: bold;
}

.page-doi-tac-va-lien-ket__text-block--white .page-doi-tac-va-lien-ket__highlight-text {
  color: #A5C4FF; /* Lighter highlight for dark background */
}

/* Grid for partner cards */
.page-doi-tac-va-lien-ket__grid-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-doi-tac-va-lien-ket__card {
  background: var(--bg-card-color, #FFFFFF);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  padding: 30px;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  color: var(--text-main-color, #1F2D3D);
}

.page-doi-tac-va-lien-ket__card--inverted {
  background: rgba(255, 255, 255, 0.15); /* Slightly transparent white for dark section */
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-doi-tac-va-lien-ket__card-image {
  margin-bottom: 20px;
  height: 200px; /* Fixed height for consistency */
  overflow: hidden;
  border-radius: 8px;
}

.page-doi-tac-va-lien-ket__card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  min-width: 200px; /* Minimum image size */
  min-height: 200px; /* Minimum image size */
}

.page-doi-tac-va-lien-ket__card-title {
  font-size: 1.5em;
  font-weight: 600;
  margin-bottom: 15px;
  color: inherit;
}

.page-doi-va-lien-ket__card--inverted .page-doi-tac-va-lien-ket__card-title {
  color: #ffffff;
}

.page-doi-tac-va-lien-ket__card-text {
  font-size: 1em;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-doi-tac-va-lien-ket__btn-link {
  color: var(--primary-color, #2F6BFF);
  text-decoration: none;
  font-weight: bold;
  margin-top: auto;
  display: inline-block;
  padding: 10px 0;
  transition: color 0.3s ease;
}

.page-doi-tac-va-lien-ket__card--inverted .page-doi-tac-va-lien-ket__btn-link {
  color: #A5C4FF; /* Lighter blue for dark background */
}

.page-doi-tac-va-lien-ket__btn-link:hover {
  text-decoration: underline;
  color: var(--glow-color, #A5C4FF);
}

/* Features grid for Affiliate Program */
.page-doi-tac-va-lien-ket__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-doi-tac-va-lien-ket__feature-card {
  background: var(--bg-card-color, #FFFFFF);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  padding: 30px;
  display: flex;
  flex-direction: column;
  color: var(--text-main-color, #1F2D3D);
}

.page-doi-tac-va-lien-ket__feature-title {
  font-size: 1.4em;
  font-weight: 600;
  margin-bottom: 20px;
  color: var(--primary-color, #2F6BFF);
}

.page-doi-tac-va-lien-ket__feature-list {
  list-style: none;
  padding: 0;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-doi-tac-va-lien-ket__feature-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  font-size: 1.05em;
}

.page-doi-tac-va-lien-ket__feature-list li::before {
  content: '✓';
  color: var(--primary-color, #2F6BFF);
  font-weight: bold;
  position: absolute;
  left: 0;
}

.page-doi-tac-va-lien-ket__feature-list ol li::before {
  content: counter(item) ".";
  counter-increment: item;
  color: var(--primary-color, #2F6BFF);
  font-weight: bold;
  position: absolute;
  left: 0;
}

/* Criteria List */
.page-doi-tac-va-lien-ket__criteria-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
  margin-bottom: 40px;
  color: rgba(255, 255, 255, 0.9);
}

.page-doi-tac-va-lien-ket__criteria-list li {
  margin-bottom: 15px;
  padding-left: 30px;
  position: relative;
  font-size: 1.1em;
}

.page-doi-tac-va-lien-ket__criteria-list li::before {
  content: '★';
  color: #A5C4FF; /* Lighter star for dark background */
  font-weight: bold;
  position: absolute;
  left: 0;
  font-size: 1.2em;
}

.page-doi-tac-va-lien-ket__image-content-block {
  display: flex;
  align-items: center;
  gap: 30px;
  margin-top: 50px;
  flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.page-doi-tac-va-lien-ket__content-image {
  flex: 1;
  min-width: 300px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  min-height: 200px; /* Minimum image size */
  object-fit: cover;
}

.page-doi-tac-va-lien-ket__image-content-block .page-doi-tac-va-lien-ket__text-block {
  flex: 1;
  min-width: 300px;
}

/* FAQ Section */
.page-doi-tac-va-lien-ket__faq-list {
  margin-top: 40px;
}

.page-doi-tac-va-lien-ket__faq-item {
  background: rgba(255, 255, 255, 0.15); /* Slightly transparent white for dark section */
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  color: #ffffff;
}

.page-doi-tac-va-lien-ket__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-weight: bold;
  font-size: 1.1em;
  list-style: none; /* Hide default marker for details summary */
  color: #ffffff;
}

.page-doi-tac-va-lien-ket__faq-question::-webkit-details-marker {
  display: none;
}

.page-doi-tac-va-lien-ket__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  transition: transform 0.3s ease;
}

.page-doi-tac-va-lien-ket__faq-item[open] .page-doi-tac-va-lien-ket__faq-toggle {
  transform: rotate(45deg);
}

.page-doi-tac-va-lien-ket__faq-answer {
  padding: 0 25px 20px;
  font-size: 1em;
  color: rgba(255, 255, 255, 0.8);
}

/* CTA Banner Section */
.page-doi-tac-va-lien-ket__cta-banner {
  display: flex;
  align-items: center;
  padding: 80px 0;
  gap: 40px;
  flex-wrap: wrap;
  background-color: var(--primary-color, #2F6BFF);
  color: #ffffff;
  position: relative;
  overflow: hidden;
}

.page-doi-tac-va-lien-ket__cta-content {
  flex: 1;
  min-width: 300px;
  text-align: left;
  z-index: 1;
  padding-right: 20px; /* Ensure content doesn't touch image on desktop */
}

.page-doi-va-lien-ket__cta-content .page-doi-tac-va-lien-ket__heading {
  text-align: left;
  margin-top: 0;
  color: #ffffff;
}

.page-doi-tac-va-lien-ket__cta-content .page-doi-tac-va-lien-ket__text-block {
  text-align: left;
  color: rgba(255, 255, 255, 0.9);
}

.page-doi-tac-va-lien-ket__btn-primary--large {
  font-size: 1.2em;
  padding: 18px 40px;
  margin-top: 20px;
}

.page-doi-tac-va-lien-ket__cta-image {
  flex: 1;
  min-width: 400px;
  position: relative;
  height: 400px; /* Fixed height for CTA image container */
  overflow: hidden;
  border-radius: 12px;
  z-index: 0;
}