/* style/support.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần thêm padding-top cho body hoặc các section đầu tiên. */

:root {
  --page-support-primary-color: #26A9E0;
  --page-support-secondary-color: #FFFFFF;
  --page-support-text-dark: #333333;
  --page-support-text-light: #FFFFFF;
  --page-support-bg-light: #f5f5f5; /* Từ body background color */
  --page-support-bg-dark: #000000; /* Để đảm bảo contrast */
  --page-support-login-color: #EA7C07;
}

.page-support {
  color: var(--page-support-text-dark); /* Mặc định chữ đen trên nền sáng */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

.page-support__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 60px 20px;
  padding-top: 10px; /* Nhỏ hơn để tránh trùng lặp với body padding */
  background-color: var(--page-support-bg-light);
  color: var(--page-support-text-dark);
}

.page-support__hero-image-wrapper {
  width: 100%;
  max-width: 1200px;
  margin-bottom: 30px;
}

.page-support__hero-image {
  width: 100%;
  height: auto;
  display: block;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-support__hero-content {
  max-width: 900px;
  width: 100%;
}

.page-support__main-title {
  font-size: clamp(2em, 3.5vw, 3.2em);
  color: var(--page-support-primary-color);
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

.page-support__lead-text {
  font-size: 1.2em;
  margin-bottom: 30px;
  color: var(--page-support-text-dark);
}

.page-support__btn-primary {
  display: inline-block;
  background-color: var(--page-support-primary-color);
  color: var(--page-support-secondary-color);
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  transition: background-color 0.3s ease, transform 0.3s ease;
  border: 2px solid transparent;
  box-sizing: border-box;
}

.page-support__btn-primary:hover {
  background-color: #1a8cc4;
  transform: translateY(-2px);
}

.page-support__btn-secondary {
  display: inline-block;
  background-color: var(--page-support-secondary-color);
  color: var(--page-support-primary-color);
  padding: 10px 20px;
  border-radius: 25px;
  text-decoration: none;
  font-weight: bold;
  border: 2px solid var(--page-support-primary-color);
  transition: background-color 0.3s ease, color 0.3s ease;
  box-sizing: border-box;
}

.page-support__btn-secondary:hover {
  background-color: var(--page-support-primary-color);
  color: var(--page-support-secondary-color);
}

.page-support__video-section {
  padding: 60px 20px;
  padding-top: 10px; /* Nhỏ hơn để tránh trùng lặp với body padding */
  background-color: var(--page-support-primary-color); /* Sử dụng màu thương hiệu làm nền tối */
  color: var(--page-support-text-light);
  text-align: center;
}

.page-support__section-title--white {
  color: var(--page-support-text-light);
}

.page-support__video-container {
  width: 100%; /* Đảm bảo chiều rộng 100% trên desktop */
  max-width: 1200px;
  margin: 0 auto;
  box-sizing: border-box;
}

.page-support__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  margin-top: 30px;
  margin-bottom: 20px;
  border-radius: 8px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-support__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: 0;
  display: block; /* Quan trọng cho responsive */
  cursor: pointer;
}

.page-support__video-description {
  font-size: 1.1em;
  color: var(--page-support-text-light);
}

.page-support__content-area {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  background-color: var(--page-support-bg-light);
  color: var(--page-support-text-dark);
}

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

.page-support__section-heading {
  font-size: 2.2em;
  color: var(--page-support-primary-color);
  margin-top: 40px;
  margin-bottom: 25px;
  text-align: center;
}

.page-support__sub-heading {
  font-size: 1.6em;
  color: var(--page-support-text-dark);
  margin-top: 30px;
  margin-bottom: 15px;
}

.page-support__paragraph {
  margin-bottom: 15px;
  font-size: 1em;
}

.page-support__unordered-list,
.page-support__ordered-list {
  margin-bottom: 15px;
  padding-left: 25px;
}

.page-support__unordered-list li,
.page-support__ordered-list li {
  margin-bottom: 8px;
}

.page-support__content-image {
  width: 100%;
  height: auto;
  display: block;
  margin: 30px 0;
  border-radius: 8px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.page-support__card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
  margin-top: 30px;
  margin-bottom: 40px;
}

.page-support__card {
  background-color: var(--page-support-secondary-color);
  color: var(--page-support-text-dark);
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  padding: 25px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-support__card-image {
  width: 100%; /* Đảm bảo hình ảnh chiếm hết chiều rộng của card */
  height: auto;
  max-width: 400px; /* Giới hạn kích thước để không quá lớn */
  margin-bottom: 15px;
  border-radius: 4px;
  display: block;
}

.page-support__card-title {
  font-size: 1.4em;
  color: var(--page-support-primary-color);
  margin-bottom: 10px;
}

.page-support__card-text {
  font-size: 0.95em;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-support__strong-text {
  font-weight: bold;
  color: var(--page-support-primary-color);
}

.page-support__faq-list {
  margin-top: 30px;
  margin-bottom: 40px;
}

.page-support__faq-item {
  background-color: var(--page-support-secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  font-size: 1.15em;
  font-weight: bold;
  color: var(--page-support-text-dark);
  cursor: pointer;
  background-color: #f9f9f9;
  border-bottom: 1px solid #e0e0e0;
}

.page-support__faq-item[open] > .page-support__faq-question {
  background-color: #f0f0f0;
  border-bottom: 1px solid var(--page-support-primary-color);
}

.page-support__faq-qtext {
  flex-grow: 1;
  color: var(--page-support-primary-color);
}

.page-support__faq-toggle {
  font-size: 1.5em;
  line-height: 1;
  margin-left: 15px;
  color: var(--page-support-primary-color);
}

.page-support__faq-answer {
  padding: 20px;
  font-size: 1em;
  color: var(--page-support-text-dark);
}

.page-support__faq-answer p {
  margin-bottom: 0;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-support__hero-section,
  .page-support__video-section,
  .page-support__content-area {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-support__main-title {
    font-size: clamp(1.8em, 4vw, 2.8em);
  }
}

@media (max-width: 768px) {
  .page-support__hero-section,
  .page-support__video-section,
  .page-support__content-area,
  .page-support__container {
    padding-left: 15px !important;
    padding-right: 15px !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-support__hero-section {
    padding-top: 10px !important;
  }

  .page-support__video-section {
    padding-top: 10px !important;
  }

  .page-support__main-title {
    font-size: clamp(1.6em, 6vw, 2.5em);
  }

  .page-support__lead-text {
    font-size: 1em;
  }

  .page-support__btn-primary,
  .page-support__btn-secondary,
  .page-support a[class*="button"],
  .page-support 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 !important;
    margin-bottom: 10px;
  }
  
  .page-support__card-grid {
    grid-template-columns: 1fr;
  }

  .page-support img,
  .page-support__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-support__video-wrapper {
    padding-bottom: 56.25% !important; /* Đảm bảo tỷ lệ khung hình */
    height: 0 !important;
    overflow: hidden !important;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-support__section-heading {
    font-size: 1.8em;
  }

  .page-support__sub-heading {
    font-size: 1.3em;
  }

  .page-support__faq-question {
    font-size: 1em;
    padding: 12px 15px;
  }
}

@media (max-width: 480px) {
  .page-support__hero-section,
  .page-support__video-section,
  .page-support__content-area {
    padding: 20px 10px;
    padding-top: 10px !important;
  }

  .page-support__main-title {
    font-size: clamp(1.4em, 7vw, 2em);
  }

  .page-support__lead-text {
    font-size: 0.9em;
  }

  .page-support__card {
    padding: 15px;
  }
}