:root {
  --vinvip-primary: #11A84E;
  --vinvip-secondary: #22C768;
  --vinvip-button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --vinvip-card-bg: #11271B;
  --vinvip-background: #08160F;
  --vinvip-text-main: #F2FFF6;
  --vinvip-text-secondary: #A7D9B8;
  --vinvip-border: #2E7A4E;
  --vinvip-glow: #57E38D;
  --vinvip-gold: #F2C14E;
  --vinvip-divider: #1E3A2A;
  --vinvip-deep-green: #0A4B2C;
}

.page-blog-huong-dan-dang-ky-vinvip {
  background-color: var(--vinvip-background); /* #08160F - Dark background */
  color: var(--vinvip-text-main); /* #F2FFF6 - Light text for dark background */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-blog-huong-dan-dang-ky-vinvip__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

/* Hero Section */
.page-blog-huong-dan-dang-ky-vinvip__hero-section {
  position: relative;
  display: flex;
  flex-direction: column; /* Forced image-above-text */
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: 10px; /* Small top padding, assuming body handles header offset */
  padding-bottom: 40px;
  overflow: hidden;
  background-color: var(--vinvip-deep-green); /* Dark green background */
}

.page-blog-huong-dan-dang-ky-vinvip__hero-image-wrapper {
  width: 100%;
  max-height: 500px; /* Limit height for hero image */
  overflow: hidden;
  margin-bottom: 30px; /* Space between image and content */
}

.page-blog-huong-dan-dang-ky-vinvip__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.page-blog-huong-dan-dang-ky-vinvip__hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 0 15px;
}

.page-blog-huong-dan-dang-ky-vinvip__main-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem); /* Using clamp for H1 font size */
  color: var(--vinvip-gold); /* Gold color for main title */
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.2;
}

.page-blog-huong-dan-dang-ky-vinvip__intro-description {
  font-size: 1.2rem;
  color: var(--vinvip-text-secondary);
  margin-bottom: 30px;
}

/* General Section Styling */
.page-blog-huong-dan-dang-ky-vinvip__section {
  padding: 60px 0;
  border-bottom: 1px solid var(--vinvip-divider);
}

.page-blog-huong-dan-dang-ky-vinvip__section:last-of-type {
  border-bottom: none;
}

.page-blog-huong-dan-dang-ky-vinvip__section-title {
  font-size: clamp(2rem, 3vw, 2.8rem);
  color: var(--vinvip-gold);
  text-align: center;
  margin-bottom: 20px;
  font-weight: 700;
}

.page-blog-huong-dan-dang-ky-vinvip__section-intro {
  font-size: 1.1rem;
  color: var(--vinvip-text-secondary);
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px;
}

/* Buttons */
.page-blog-huong-dan-dang-ky-vinvip__primary-button,
.page-blog-huong-dan-dang-ky-vinvip__secondary-button {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  box-sizing: border-box; /* Ensure padding is included in width */
  white-space: normal; /* Allow text to wrap */
  word-wrap: break-word; /* Break long words */
}

.page-blog-huong-dan-dang-ky-vinvip__primary-button {
  background: var(--vinvip-button-gradient);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-blog-huong-dan-dang-ky-vinvip__primary-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
  opacity: 0.9;
}

.page-blog-huong-dan-dang-ky-vinvip__secondary-button {
  background: transparent;
  color: var(--vinvip-gold);
  border: 2px solid var(--vinvip-gold);
  margin-top: 20px;
}

.page-blog-huong-dan-dang-ky-vinvip__secondary-button:hover {
  background: var(--vinvip-gold);
  color: var(--vinvip-background);
}

/* Why Vinvip Section */
.page-blog-huong-dan-dang-ky-vinvip__why-vinvip {
  background-color: var(--vinvip-card-bg); /* #11271B */
  color: var(--vinvip-text-main);
}

.page-blog-huong-dan-dang-ky-vinvip__feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog-huong-dan-dang-ky-vinvip__feature-item {
  background-color: rgba(0, 0, 0, 0.2); /* Slightly darker background for cards */
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--vinvip-border);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
}

.page-blog-huong-dan-dang-ky-vinvip__feature-image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 20px;
  border-radius: 8px;
  object-fit: cover;
}

.page-blog-huong-dan-dang-ky-vinvip__feature-title {
  font-size: 1.5rem;
  color: var(--vinvip-gold);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-blog-huong-dan-dang-ky-vinvip__feature-description {
  font-size: 1rem;
  color: var(--vinvip-text-secondary);
}

/* Registration Guide Section */
.page-blog-huong-dan-dang-ky-vinvip__registration-guide {
  background-color: var(--vinvip-background);
  color: var(--vinvip-text-main);
}

.page-blog-huong-dan-dang-ky-vinvip__step-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-top: 40px;
}

.page-blog-huong-dan-dang-ky-vinvip__step-item {
  background-color: var(--vinvip-card-bg);
  padding: 30px;
  border-radius: 10px;
  border: 1px solid var(--vinvip-border);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.3);
  position: relative;
  padding-left: 80px; /* Space for step number */
}

.page-blog-huong-dan-dang-ky-vinvip__step-number {
  position: absolute;
  left: 20px;
  top: 20px;
  background: var(--vinvip-button-gradient);
  color: #ffffff;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: bold;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
}

.page-blog-huong-dan-dang-ky-vinvip__step-title {
  font-size: 1.6rem;
  color: var(--vinvip-gold);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-blog-huong-dan-dang-ky-vinvip__step-description {
  font-size: 1rem;
  color: var(--vinvip-text-secondary);
  margin-bottom: 15px;
}

.page-blog-huong-dan-dang-ky-vinvip__info-list {
  list-style: none;
  padding-left: 0;
  margin-bottom: 15px;
}

.page-blog-huong-dan-dang-ky-vinvip__info-list li {
  color: var(--vinvip-text-secondary);
  margin-bottom: 8px;
  position: relative;
  padding-left: 25px;
}

.page-blog-huong-dan-dang-ky-vinvip__info-list li::before {
  content: '✓';
  color: var(--vinvip-secondary);
  position: absolute;
  left: 0;
  font-weight: bold;
}

/* Important Notes Section */
.page-blog-huong-dan-dang-ky-vinvip__important-notes {
  background-color: var(--vinvip-card-bg);
  color: var(--vinvip-text-main);
}

.page-blog-huong-dan-dang-ky-vinvip__note-list {
  list-style: none;
  padding-left: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-blog-huong-dan-dang-ky-vinvip__note-item {
  background-color: rgba(0, 0, 0, 0.2);
  padding: 25px;
  border-radius: 10px;
  border: 1px solid var(--vinvip-border);
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}

.page-blog-huong-dan-dang-ky-vinvip__note-title {
  font-size: 1.3rem;
  color: var(--vinvip-gold);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-blog-huong-dan-dang-ky-vinvip__note-description {
  font-size: 0.95rem;
  color: var(--vinvip-text-secondary);
}

/* FAQ Section */
.page-blog-huong-dan-dang-ky-vinvip__faq-section {
  background-color: var(--vinvip-background);
  color: var(--vinvip-text-main);
}

.page-blog-huong-dan-dang-ky-vinvip__faq-list {
  margin-top: 40px;
}

details.page-blog-huong-dan-dang-ky-vinvip__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  border: 1px solid var(--vinvip-border);
  overflow: hidden;
  background: var(--vinvip-card-bg); /* Darker background for FAQ items */
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
}
details.page-blog-huong-dan-dang-ky-vinvip__faq-item summary.page-blog-huong-dan-dang-ky-vinvip__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}
details.page-blog-huong-dan-dang-ky-vinvip__faq-item summary.page-blog-huong-dan-dang-ky-vinvip__faq-question::-webkit-details-marker {
  display: none;
}
details.page-blog-huong-dan-dang-ky-vinvip__faq-item summary.page-blog-huong-dan-dang-ky-vinvip__faq-question:hover {
  background: rgba(var(--vinvip-primary), 0.1); /* Slightly lighter hover */
}
.page-blog-huong-dan-dang-ky-vinvip__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--vinvip-gold);
}
.page-blog-huong-dan-dang-ky-vinvip__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--vinvip-gold);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}
details.page-blog-huong-dan-dang-ky-vinvip__faq-item .page-blog-huong-dan-dang-ky-vinvip__faq-answer {
  padding: 0 25px 25px;
  background: rgba(0, 0, 0, 0.1); /* Slightly different background for answer */
  border-radius: 0 0 10px 10px;
  color: var(--vinvip-text-secondary);
}
.page-blog-huong-dan-dang-ky-vinvip__faq-answer p {
  margin-top: 0;
  margin-bottom: 0;
}

/* Conclusion Section */
.page-blog-huong-dan-dang-ky-vinvip__conclusion {
  background-color: var(--vinvip-deep-green); /* Deep green background for conclusion */
  text-align: center;
  padding: 80px 0;
}

.page-blog-huong-dan-dang-ky-vinvip__bottom-cta {
  margin-top: 40px;
  font-size: 1.2rem;
  padding: 18px 35px;
}

/* --- Responsive Design --- */

/* All images responsive */
.page-blog-huong-dan-dang-ky-vinvip img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* All buttons responsive */
.page-blog-huong-dan-dang-ky-vinvip__primary-button,
.page-blog-huong-dan-dang-ky-vinvip__secondary-button,
.page-blog-huong-dan-dang-ky-vinvip a[class*="button"],
.page-blog-huong-dan-dang-ky-vinvip a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

/* Button containers responsive */
.page-blog-huong-dan-dang-ky-vinvip__cta-buttons,
.page-blog-huong-dan-dang-ky-vinvip__button-group,
.page-blog-huong-dan-dang-ky-vinvip__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

@media (max-width: 1024px) {
  .page-blog-huong-dan-dang-ky-vinvip__main-title {
    font-size: clamp(2.2rem, 5vw, 3rem);
  }
  .page-blog-huong-dan-dang-ky-vinvip__section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
  }
  .page-blog-huong-dan-dang-ky-vinvip__feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}


@media (max-width: 768px) {
  /* 1. Top text / Hero Section */
  .page-blog-huong-dan-dang-ky-vinvip__hero-section {
    padding-top: 10px; /* Small top padding, assuming body handles header offset */
    padding-bottom: 30px;
  }

  .page-blog-huong-dan-dang-ky-vinvip__hero-content {
    padding: 0 10px;
  }

  .page-blog-huong-dan-dang-ky-vinvip__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem); /* Adjust H1 for smaller screens */
    margin-bottom: 15px;
  }

  .page-blog-huong-dan-dang-ky-vinvip__intro-description {
    font-size: 1rem;
    margin-bottom: 25px;
  }

  /* 2. Landing page two-column modules (general stacking for content) */
  .page-blog-huong-dan-dang-ky-vinvip__feature-grid,
  .page-blog-huong-dan-dang-ky-vinvip__note-list {
    grid-template-columns: 1fr; /* Stack to single column */
    gap: 20px;
  }

  .page-blog-huong-dan-dang-ky-vinvip__section {
    padding: 40px 0;
  }

  .page-blog-huong-dan-dang-ky-vinvip__section-title {
    font-size: clamp(1.5rem, 5vw, 2.2rem);
    margin-bottom: 15px;
  }

  .page-blog-huong-dan-dang-ky-vinvip__section-intro {
    font-size: 1rem;
    margin-bottom: 30px;
  }

  .page-blog-huong-dan-dang-ky-vinvip__step-item {
    padding-left: 60px; /* Adjust padding for step number */
  }

  .page-blog-huong-dan-dang-ky-vinvip__step-number {
    left: 15px;
    top: 15px;
    width: 35px;
    height: 35px;
    font-size: 1.2rem;
  }

  .page-blog-huong-dan-dang-ky-vinvip__step-title {
    font-size: 1.3rem;
  }

  /* 3. Universal images and containers */
  .page-blog-huong-dan-dang-ky-vinvip img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  
  .page-blog-huong-dan-dang-ky-vinvip__section,
  .page-blog-huong-dan-dang-ky-vinvip__card,
  .page-blog-huong-dan-dang-ky-vinvip__container,
  .page-blog-huong-dan-dang-ky-vinvip__feature-item,
  .page-blog-huong-dan-dang-ky-vinvip__step-item,
  .page-blog-huong-dan-dang-ky-vinvip__note-item,
  .page-blog-huong-dan-dang-ky-vinvip__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  /* Remove specific padding for containers that are already full width */
  .page-blog-huong-dan-dang-ky-vinvip__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  /* 4. Buttons */
  .page-blog-huong-dan-dang-ky-vinvip__primary-button,
  .page-blog-huong-dan-dang-ky-vinvip__secondary-button,
  .page-blog-huong-dan-dang-ky-vinvip a[class*="button"],
  .page-blog-huong-dan-dang-ky-vinvip 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: 12px 20px; /* Adjust button padding for mobile */
    font-size: 1rem;
  }
  
  .page-blog-huong-dan-dang-ky-vinvip__cta-buttons,
  .page-blog-huong-dan-dang-ky-vinvip__button-group,
  .page-blog-huong-dan-dang-ky-vinvip__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important; /* Allow multiple buttons to wrap */
    gap: 10px;
    display: flex;
    flex-direction: column; /* Stack buttons vertically on mobile */
  }

  /* FAQ specific adjustments */
  details.page-blog-huong-dan-dang-ky-vinvip__faq-item summary.page-blog-huong-dan-dang-ky-vinvip__faq-question {
    padding: 15px;
  }
  .page-blog-huong-dan-dang-ky-vinvip__faq-qtext {
    font-size: 1rem;
  }
  .page-blog-huong-dan-dang-ky-vinvip__faq-answer {
    padding: 0 15px 15px;
  }
  .page-blog-huong-dan-dang-ky-vinvip__conclusion {
    padding: 50px 0;
  }
  .page-blog-huong-dan-dang-ky-vinvip__bottom-cta {
    font-size: 1.1rem;
    padding: 15px 25px;
  }
}