/* style/faq.css */

/* Biến CSS */
:root {
  --page-faq-primary-color: #007BFF;
  --page-faq-secondary-color: #FFC107;
  --page-faq-text-color: #333;
  --page-faq-light-text-color: #f8f9fa;
  --page-faq-bg-light: #f4f7f6;
  --page-faq-bg-dark: #2c3e50;
  --page-faq-border-color: #e0e0e0;
  --page-faq-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

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

.page-faq__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Hero Section */
.page-faq__hero {
  background: linear-gradient(135deg, var(--page-faq-primary-color), #0056b3);
  color: var(--page-faq-light-text-color);
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-faq__hero-title {
  font-size: 2.8em;
  margin-bottom: 15px;
  font-weight: bold;
  color: var(--page-faq-light-text-color);
}

.page-faq__hero-description {
  font-size: 1.2em;
  max-width: 800px;
  margin: 0 auto 30px auto;
  opacity: 0.9;
}

.page-faq__hero-cta {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.page-faq__btn {
  display: inline-block;
  padding: 12px 25px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  font-size: 1em;
}

.page-faq__btn--primary {
  background-color: var(--page-faq-secondary-color);
  color: var(--page-faq-bg-dark);
  box-shadow: var(--page-faq-shadow);
}

.page-faq__btn--primary:hover {
  background-color: #e6a700;
  transform: translateY(-2px);
}

.page-faq__btn--secondary {
  background-color: transparent;
  color: var(--page-faq-light-text-color);
  border: 2px solid var(--page-faq-light-text-color);
}

.page-faq__btn--secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

.page-faq__btn--link {
  background-color: transparent;
  color: var(--page-faq-primary-color);
  padding: 8px 15px;
  border: 1px solid var(--page-faq-primary-color);
  font-size: 0.9em;
}

.page-faq__btn--link:hover {
  background-color: var(--page-faq-primary-color);
  color: var(--page-faq-light-text-color);
}

/* Accordion Section */
.page-faq__accordion-section {
  padding: 60px 0;
  background-color: #fff;
}

.page-faq__section-title {
  font-size: 2.2em;
  color: var(--page-faq-primary-color);
  text-align: center;
  margin-bottom: 20px;
}

.page-faq__section-intro {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 40px auto;
  font-size: 1.1em;
  color: #555;
}

.page-faq__accordion {
  max-width: 900px;
  margin: 0 auto;
}

.page-faq__accordion-item {
  background-color: #fff;
  border: 1px solid var(--page-faq-border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: var(--page-faq-shadow);
}

.page-faq__accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 20px;
  background-color: #f9f9f9;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: 1.1em;
  color: var(--page-faq-text-color);
  transition: background-color 0.3s ease;
}

.page-faq__accordion-header:hover {
  background-color: #f0f0f0;
}

.page-faq__accordion-header.active {
  background-color: var(--page-faq-primary-color);
  color: var(--page-faq-light-text-color);
}

.page-faq__accordion-header.active .page-faq__accordion-title {
  color: var(--page-faq-light-text-color);
}

.page-faq__accordion-title {
  margin: 0;
  font-size: 1.1em;
  color: var(--page-faq-text-color);
}

.page-faq__accordion-icon {
  width: 24px;
  height: 24px;
  position: relative;
}

.page-faq__accordion-icon::before, .page-faq__accordion-icon::after {
  content: '';
  position: absolute;
  background-color: var(--page-faq-primary-color);
  transition: transform 0.3s ease;
}

.page-faq__accordion-header.active .page-faq__accordion-icon::before,
.page-faq__accordion-header.active .page-faq__accordion-icon::after {
  background-color: var(--page-faq-light-text-color);
}

.page-faq__accordion-icon::before {
  width: 2px;
  height: 16px;
  top: 4px;
  left: 11px;
}

.page-faq__accordion-icon::after {
  width: 16px;
  height: 2px;
  top: 11px;
  left: 4px;
}

.page-faq__accordion-header.active .page-faq__accordion-icon::before {
  transform: rotate(90deg);
}

.page-faq__accordion-content {
  padding: 0 20px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.page-faq__accordion-content p {
  padding-bottom: 20px;
  margin: 0;
  color: #555;
}

.page-faq__accordion-content a {
  color: var(--page-faq-primary-color);
  text-decoration: underline;
  margin-bottom: 20px;
  display: inline-block;
}

.page-faq__accordion-content a:hover {
  color: #0056b3;
}

/* Related FAQs Section */
.page-faq__related-faqs {
  padding: 60px 0;
  background-color: var(--page-faq-bg-light);
}

.page-faq__faq-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-faq__faq-card {
  background-color: #fff;
  border-radius: 8px;
  box-shadow: var(--page-faq-shadow);
  padding: 25px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-faq__faq-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.15);
}

.page-faq__card-title {
  font-size: 1.3em;
  color: var(--page-faq-primary-color);
  margin-bottom: 15px;
}

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

.page-faq__card-title a:hover {
  text-decoration: underline;
}

.page-faq__card-description {
  color: #666;
  margin-bottom: 20px;
  flex-grow: 1;
}

/* Floating Ad */
.page-faq__floating-ad {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background-color: var(--page-faq-secondary-color);
  color: var(--page-faq-bg-dark);
  padding: 15px 25px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  align-items: center;
  gap: 15px;
  z-index: 1000;
  opacity: 0;
  transform: translateY(100%);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}

.page-faq__floating-ad.show {
  opacity: 1;
  transform: translateY(0);
}

.page-faq__ad-content {
  flex-grow: 1;
}

.page-faq__ad-title {
  font-size: 1.2em;
  font-weight: bold;
  margin-bottom: 5px;
  color: var(--page-faq-bg-dark);
}

.page-faq__ad-text {
  font-size: 0.9em;
  margin-bottom: 10px;
  color: #333;
}

.page-faq__btn--ad {
  background-color: var(--page-faq-primary-color);
  color: var(--page-faq-light-text-color);
  padding: 10px 20px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  white-space: nowrap;
}

.page-faq__btn--ad:hover {
  background-color: #0056b3;
}

.page-faq__ad-close-btn {
  background: none;
  border: none;
  color: var(--page-faq-bg-dark);
  font-size: 1.8em;
  cursor: pointer;
  padding: 0 5px;
  line-height: 1;
}

.page-faq__ad-close-btn:hover {
  color: #666;
}

/* Responsive Design */
@media (max-width: 768px) {
  .page-faq__hero {
    padding: 60px 0;
  }

  .page-faq__hero-title {
    font-size: 2.2em;
  }

  .page-faq__hero-description {
    font-size: 1em;
  }

  .page-faq__hero-cta {
    flex-direction: column;
    gap: 15px;
  }

  .page-faq__btn {
    width: 80%;
    margin: 0 auto;
  }

  .page-faq__section-title {
    font-size: 1.8em;
  }

  .page-faq__section-intro {
    font-size: 1em;
  }

  .page-faq__accordion-header {
    font-size: 1em;
    padding: 15px;
  }

  .page-faq__accordion-title {
    font-size: 1em;
  }

  .page-faq__faq-list {
    grid-template-columns: 1fr;
  }

  .page-faq__floating-ad {
    flex-direction: column;
    align-items: flex-start;
    bottom: 10px;
    right: 10px;
    left: 10px;
    padding: 15px;
  }

  .page-faq__ad-close-btn {
    position: absolute;
    top: 5px;
    right: 5px;
  }

  .page-faq__btn--ad {
    width: 100%;
    text-align: center;
    margin-top: 10px;
  }
}

@media (max-width: 480px) {
  .page-faq__hero-title {
    font-size: 1.8em;
  }

  .page-faq__btn {
    padding: 10px 20px;
    font-size: 0.9em;
  }

  .page-faq__accordion-content p {
    font-size: 0.9em;
  }
}