/* style/faq.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */

:root {
  --page-faq-primary-color: #26A9E0;
  --page-faq-secondary-color: #FFFFFF;
  --page-faq-text-color-dark: #333333;
  --page-faq-text-color-light: #ffffff;
  --page-faq-login-color: #EA7C07;
  --page-faq-dark-bg-color: #0a0a0a; /* Từ body background */
}

.page-faq {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--page-faq-text-color-light); /* Body background #0a0a0a là dark, dùng text light */
  background-color: var(--page-faq-dark-bg-color);
}

.page-faq__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  padding: 10px 20px 60px; /* Padding-top nhỏ, không dùng var(--header-offset) */
  text-align: center;
  overflow: hidden;
  box-sizing: border-box;
}

.page-faq__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.page-faq__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.4); /* Làm tối ảnh nền để chữ dễ đọc */
  display: block;
}

.page-faq__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  margin: 0 auto;
  color: var(--page-faq-text-color-light);
  padding: 20px;
  background: rgba(0, 0, 0, 0.4); /* Nền mờ để chữ nổi bật hơn */
  border-radius: 8px;
}

.page-faq__main-title {
  font-size: clamp(2.2rem, 4vw, 3rem); /* H1 không dùng font-size cố định quá lớn */
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--page-faq-secondary-color);
  line-height: 1.2;
}

.page-faq__description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
  color: var(--page-faq-secondary-color);
}

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

.page-faq__btn-primary,
.page-faq__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  box-sizing: border-box;
  max-width: 100%;
  white-space: normal;
  word-wrap: break-word;
}

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

.page-faq__btn-primary:hover {
  background-color: darken(var(--page-faq-primary-color), 10%);
  border-color: darken(var(--page-faq-primary-color), 10%);
}

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

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

.page-faq__btn-large {
  padding: 16px 35px;
  font-size: 1.1rem;
}

.page-faq__content-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
  background-color: var(--page-faq-secondary-color); /* Nền trắng cho khu vực nội dung chính */
  color: var(--page-faq-text-color-dark); /* Chữ đen trên nền trắng */
  border-radius: 8px;
  margin-top: -40px; /* Kéo lên một chút để liên kết với hero section */
  position: relative;
  z-index: 2;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.page-faq__section-title {
  font-size: 2.5rem;
  color: var(--page-faq-primary-color);
  text-align: center;
  margin-bottom: 40px;
  font-weight: 700;
}

.page-faq__intro-text {
  font-size: 1.1rem;
  text-align: center;
  margin-bottom: 50px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-faq__intro-text a {
  color: var(--page-faq-primary-color);
  text-decoration: underline;
}

.page-faq__faq-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.page-faq__faq-item {
  background-color: #f9f9f9;
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.page-faq__faq-item:hover {
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-faq__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2rem;
  font-weight: 600;
  cursor: pointer;
  background-color: var(--page-faq-secondary-color);
  color: var(--page-faq-text-color-dark);
  list-style: none; /* Dùng cho details/summary */
}

.page-faq__faq-question::-webkit-details-marker {
  display: none; /* Ẩn marker mặc định cho details/summary */
}

.page-faq__faq-qtext {
  flex-grow: 1;
}

.page-faq__faq-toggle {
  font-size: 1.5rem;
  font-weight: bold;
  margin-left: 15px;
  color: var(--page-faq-primary-color);
}

.page-faq__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  line-height: 1.7;
  color: #555;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-faq__faq-item[open] .page-faq__faq-answer {
  max-height: 2000px; /* Đủ lớn để chứa nội dung */
  padding-top: 15px;
}

.page-faq__faq-answer p {
  margin-bottom: 15px;
}

.page-faq__faq-answer p:last-child {
  margin-bottom: 0;
}

.page-faq__faq-answer a {
  color: var(--page-faq-primary-color);
  text-decoration: underline;
}

.page-faq__image-inline {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 20px auto;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  min-width: 200px;
  min-height: 200px;
}

.page-faq__additional-info {
  margin-top: 60px;
  padding: 40px;
  background-color: #eaf6fd; /* Nền xanh nhạt */
  border-radius: 8px;
  text-align: center;
  color: var(--page-faq-text-color-dark);
}

.page-faq__sub-title {
  font-size: 2rem;
  color: var(--page-faq-primary-color);
  margin-bottom: 20px;
}

.page-faq__additional-info p {
  font-size: 1.1rem;
  margin-bottom: 25px;
  line-height: 1.7;
}

.page-faq__additional-info a {
  color: var(--page-faq-primary-color);
  text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-faq__main-title {
    font-size: clamp(2rem, 5vw, 2.8rem);
  }
  .page-faq__section-title {
    font-size: 2rem;
  }
  .page-faq__faq-question {
    font-size: 1.1rem;
  }
}

@media (max-width: 768px) {
  .page-faq__hero-section {
    padding: 10px 15px 40px;
    min-height: 400px;
  }
  .page-faq__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }
  .page-faq__description {
    font-size: 1rem;
  }
  .page-faq__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-faq__btn-primary,
  .page-faq__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    padding: 12px 20px;
    font-size: 0.95rem;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-faq__content-area {
    padding: 30px 15px;
    margin-top: -30px;
  }
  .page-faq__section-title {
    font-size: 1.8rem;
    margin-bottom: 30px;
  }
  .page-faq__intro-text {
    font-size: 1rem;
    margin-bottom: 30px;
  }
  .page-faq__faq-question {
    padding: 15px 20px;
    font-size: 1rem;
  }
  .page-faq__faq-toggle {
    font-size: 1.2rem;
  }
  .page-faq__faq-answer {
    padding: 0 20px 15px;
    font-size: 0.95rem;
  }
  .page-faq__additional-info {
    padding: 30px 15px;
  }
  .page-faq__sub-title {
    font-size: 1.5rem;
  }
  .page-faq__additional-info p {
    font-size: 1rem;
  }

  /* Responsive images */
  .page-faq img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
    min-width: 200px !important;
    min-height: 200px !important;
  }
  .page-faq__hero-image-wrapper,
  .page-faq__content-area,
  .page-faq__additional-info,
  .page-faq__faq-list,
  .page-faq__faq-item {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-faq__hero-content {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-faq__image-inline {
    padding-left: 0;
    padding-right: 0;
  }
}

@media (max-width: 480px) {
  .page-faq__hero-section {
    min-height: 350px;
  }
  .page-faq__main-title {
    font-size: clamp(1.6rem, 7vw, 2.2rem);
  }
  .page-faq__section-title {
    font-size: 1.6rem;
  }
  .page-faq__faq-question {
    font-size: 0.95rem;
  }
  .page-faq__faq-answer {
    font-size: 0.9rem;
  }
}