/* style/faq.css */

/* Biến CSS */
:root {
  --page-faq-primary-color: #0A2463;
  --page-faq-secondary-color: #E3B505;
  --page-faq-text-dark: #333;
  --page-faq-text-light: #f8f8f8;
  --page-faq-bg-light: #f4f7f6;
  --page-faq-bg-dark: #071b4a;
  --page-faq-border-color: #e0e0e0;
  --page-faq-shadow-light: rgba(0, 0, 0, 0.08);
  --page-faq-transition-speed: 0.3s;
}

/* Reset cơ bản cho phần nội dung trang FAQ */
.page-faq * {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

.page-faq a {
  text-decoration: none;
  color: var(--page-faq-secondary-color);
  transition: color var(--page-faq-transition-speed) ease;
}

.page-faq a:hover {
  color: #ffcc00; /* Màu vàng sáng hơn khi hover */
}

/* Container chung */
.page-faq__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

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

.page-faq__hero-section::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle at 10% 20%, rgba(227, 181, 5, 0.1) 0%, rgba(10, 36, 99, 0.1) 70%);
  opacity: 0.6;
  z-index: 0;
}

.page-faq__hero-section > .page-faq__container {
  position: relative;
  z-index: 1;
}

.page-faq__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  line-height: 1.2;
  color: var(--page-faq-secondary-color);
}

.page-faq__hero-description {
  font-size: 1.2em;
  max-width: 800px;
  margin: 0 auto 30px;
  line-height: 1.6;
}

.page-faq__link-inline {
  color: var(--page-faq-secondary-color);
  font-weight: bold;
}

.page-faq__link-inline:hover {
  text-decoration: underline;
}

/* Buttons */
.page-faq__btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 1.1em;
  font-weight: bold;
  text-align: center;
  cursor: pointer;
  transition: all var(--page-faq-transition-speed) ease;
  border: none;
  white-space: nowrap;
}

.page-faq__btn--primary {
  background-color: var(--page-faq-secondary-color);
  color: var(--page-faq-primary-color);
  margin-right: 15px;
}

.page-faq__btn--primary:hover {
  background-color: #ffcc00;
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(227, 181, 5, 0.4);
}

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

.page-faq__btn--secondary:hover {
  background-color: var(--page-faq-secondary-color);
  color: var(--page-faq-primary-color);
  transform: translateY(-2px);
  box-shadow: 0 6px 12px rgba(227, 181, 5, 0.2);
}

.page-faq__btn--large {
  padding: 15px 35px;
  font-size: 1.2em;
}

.page-faq__btn--text {
  background: none;
  border: none;
  color: var(--page-faq-secondary-color);
  padding: 8px 0;
  font-size: 1em;
  font-weight: bold;
  text-align: left;
}

.page-faq__btn--text:hover {
  text-decoration: underline;
  color: #ffcc00;
}

/* Content Section */
.page-faq__content-section {
  padding: 60px 0;
  background-color: var(--page-faq-bg-light);
  color: var(--page-faq-text-dark);
}

/* Accordion */
.page-faq__accordion {
  margin-top: 40px;
}

.page-faq__accordion-item {
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 15px var(--page-faq-shadow-light);
  margin-bottom: 20px;
  overflow: hidden;
}

.page-faq__accordion-header {
  font-size: 1.8em;
  padding: 25px 30px;
  background-color: var(--page-faq-primary-color);
  color: var(--page-faq-text-light);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background-color var(--page-faq-transition-speed) ease;
  border-bottom: 1px solid var(--page-faq-bg-dark);
}

.page-faq__accordion-header::after {
  content: '+';
  font-size: 1.5em;
  font-weight: bold;
  transition: transform var(--page-faq-transition-speed) ease;
}

.page-faq__accordion-item.active .page-faq__accordion-header {
  background-color: var(--page-faq-bg-dark);
}

.page-faq__accordion-item.active .page-faq__accordion-header::after {
  transform: rotate(45deg);
}

.page-faq__accordion-content {
  padding: 0 30px;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.7s ease-out, padding 0.7s ease-out;
}

.page-faq__accordion-item.active .page-faq__accordion-content {
  max-height: 1500px; /* Giá trị đủ lớn để chứa nội dung */
  padding: 30px;
}

.page-faq__question {
  font-size: 1.4em;
  color: var(--page-faq-primary-color);
  margin-bottom: 15px;
}

.page-faq__answer {
  font-size: 1.05em;
  line-height: 1.7;
  margin-bottom: 15px;
  color: var(--page-faq-text-dark);
}

.page-faq__list {
  list-style-type: disc;
  margin-left: 25px;
  margin-bottom: 20px;
  font-size: 1.05em;
  line-height: 1.7;
  color: var(--page-faq-text-dark);
}

.page-faq__list li {
  margin-bottom: 8px;
}

.page-faq__list ol {
  list-style-type: decimal;
}

.page-faq__image {
  width: 100%;
  max-width: 700px;
  height: auto;
  border-radius: 8px;
  margin: 25px auto;
  display: block;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

/* CTA Banner */
.page-faq__cta-banner {
  background-color: var(--page-faq-primary-color);
  border-radius: 10px;
  padding: 40px;
  margin-top: 60px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  color: var(--page-faq-text-light);
  position: relative;
  overflow: hidden;
}

.page-faq__cta-image {
  width: 100%;
  max-height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 30px;
}

.page-faq__cta-content {
  position: relative;
  z-index: 1;
}

.page-faq__cta-title {
  font-size: 2.5em;
  color: var(--page-faq-secondary-color);
  margin-bottom: 20px;
}

.page-faq__cta-text {
  font-size: 1.2em;
  margin-bottom: 30px;
  max-width: 700px;
  line-height: 1.6;
}

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

.page-faq__section-title {
  font-size: 2.5em;
  color: var(--page-faq-primary-color);
  text-align: center;
  margin-bottom: 40px;
}

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

.page-faq__article-card {
  background-color: #fff;
  border-radius: 10px;
  box-shadow: 0 4px 15px var(--page-faq-shadow-light);
  overflow: hidden;
  transition: transform var(--page-faq-transition-speed) ease, box-shadow var(--page-faq-transition-speed) ease;
}

.page-faq__article-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-faq__article-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.page-faq__article-title {
  font-size: 1.3em;
  padding: 20px 20px 10px;
  color: var(--page-faq-primary-color);
  line-height: 1.4;
}

.page-faq__article-title a {
  color: var(--page-faq-primary-color);
  font-weight: bold;
}

.page-faq__article-title a:hover {
  color: var(--page-faq-secondary-color);
}

.page-faq__article-excerpt {
  font-size: 0.95em;
  color: #666;
  padding: 0 20px 15px;
  line-height: 1.6;
}

.page-faq__article-card .page-faq__btn--text {
  display: block;
  margin: 0 20px 20px;
  text-align: right;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-faq__hero-title {
    font-size: 2.5em;
  }
  .page-faq__hero-description {
    font-size: 1.1em;
  }
  .page-faq__accordion-header {
    font-size: 1.6em;
    padding: 20px 25px;
  }
  .page-faq__question {
    font-size: 1.3em;
  }
  .page-faq__cta-title {
    font-size: 2em;
  }
  .page-faq__cta-text {
    font-size: 1.1em;
  }
  .page-faq__section-title {
    font-size: 2em;
  }
}

@media (max-width: 768px) {
  .page-faq__hero-title {
    font-size: 2em;
  }
  .page-faq__hero-description {
    font-size: 1em;
  }
  .page-faq__btn {
    font-size: 1em;
    padding: 10px 20px;
    margin: 5px;
  }
  .page-faq__btn--large {
    font-size: 1.1em;
    padding: 12px 25px;
  }
  .page-faq__accordion-header {
    font-size: 1.4em;
    padding: 18px 20px;
  }
  .page-faq__accordion-content {
    padding: 20px;
  }
  .page-faq__question {
    font-size: 1.2em;
  }
  .page-faq__answer, .page-faq__list {
    font-size: 0.95em;
  }
  .page-faq__cta-title {
    font-size: 1.8em;
  }
  .page-faq__cta-text {
    font-size: 1em;
  }
  .page-faq__article-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .page-faq__hero-title {
    font-size: 1.8em;
  }
  .page-faq__hero-description {
    font-size: 0.9em;
  }
  .page-faq__btn--primary {
    margin-right: 0;
    margin-bottom: 10px;
  }
  .page-faq__accordion-header {
    font-size: 1.2em;
    padding: 15px;
  }
  .page-faq__accordion-content {
    padding: 15px;
  }
  .page-faq__question {
    font-size: 1.1em;
  }
  .page-faq__cta-title {
    font-size: 1.5em;
  }
  .page-faq__cta-text {
    font-size: 0.9em;
  }
  .page-faq__section-title {
    font-size: 1.8em;
  }
}