/* style/support.css */

/* Biến CSS cho màu sắc */
:root {
  --page-support-primary-color: #FFD700; /* Vàng kim */
  --page-support-secondary-color: #8B0000; /* Đỏ đậm */
  --page-support-text-light: #ffffff;
  --page-support-text-dark: #333333;
  --page-support-bg-dark: #121212; /* Từ shared.css body background */
  --page-support-card-bg-dark-mode: rgba(255, 255, 255, 0.1);
  --page-support-border-color: #e0e0e0;
}

.page-support {
  font-family: 'Arial', sans-serif;
  color: var(--page-support-text-light); /* Mặc định chữ sáng trên nền tối */
  background-color: var(--page-support-bg-dark);
  line-height: 1.6;
  overflow-x: hidden; /* Ngăn chặn tràn ngang */
}

.page-support__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

/* Hero Section */
.page-support__hero-section {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 500px;
  padding: 80px 20px;
  color: var(--page-support-text-light);
  background: linear-gradient(135deg, var(--page-support-secondary-color) 0%, var(--page-support-primary-color) 100%);
  text-align: center;
  padding-top: var(--header-offset, 120px); /* Đảm bảo không bị header che */
  overflow: hidden;
}

.page-support__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
  opacity: 0.3;
}

.page-support__hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
}

.page-support__hero-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  color: var(--page-support-primary-color);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

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

.page-support__btn-primary,
.page-support__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 5px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-support__btn-primary {
  background-color: var(--page-support-primary-color);
  color: var(--page-support-text-dark);
  border: 2px solid var(--page-support-primary-color);
}

.page-support__btn-primary:hover {
  background-color: #e6c200;
  border-color: #e6c200;
  color: var(--page-support-text-dark);
}

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

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

.page-support__btn-text {
  color: var(--page-support-primary-color);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
  display: inline-flex;
  align-items: center;
}

.page-support__btn-text:hover {
  color: #e6c200;
}

.page-support__arrow {
  margin-left: 5px;
  transition: transform 0.3s ease;
}

.page-support__btn-text:hover .page-support__arrow {
  transform: translateX(5px);
}

/* General Section Styling */
.page-support__section-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 20px;
  color: var(--page-support-primary-color);
}

.page-support__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  color: var(--page-support-text-light);
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-support__dark-bg {
  background-color: var(--page-support-bg-dark);
  color: var(--page-support-text-light);
  padding: 60px 0;
}

.page-support__light-bg {
  background-color: var(--page-support-text-light);
  color: var(--page-support-text-dark);
  padding: 60px 0;
}

/* FAQ Section */
.page-support__faq-section {
  padding: 60px 0;
}

.page-support__faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.page-support__faq-item {
  background-color: var(--page-support-card-bg-dark-mode);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.05);
  transition: background-color 0.3s ease;
}

.page-support__faq-question:hover {
  background-color: rgba(255, 255, 255, 0.1);
}

.page-support__faq-title {
  font-size: 1.3em;
  margin: 0;
  color: var(--page-support-primary-color);
}

.page-support__faq-toggle {
  font-size: 1.8em;
  font-weight: bold;
  color: var(--page-support-primary-color);
  transition: transform 0.3s ease;
}

.page-support__faq-item.active .page-support__faq-toggle {
  transform: rotate(45deg);
}

.page-support__faq-answer {
  max-height: 0;
  overflow: hidden;
  padding: 0 20px;
  transition: max-height 0.3s ease, padding 0.3s ease;
  color: var(--page-support-text-light);
}

.page-support__faq-item.active .page-support__faq-answer {
  max-height: 1000px !important; /* Đủ lớn để chứa nội dung */
  padding: 15px 20px;
}

.page-support__faq-answer p {
  margin-bottom: 10px;
  color: var(--page-support-text-light);
}

/* Contact Us Section */
.page-support__contact-us-section {
  padding: 60px 0;
  background-color: var(--page-support-text-light);
  color: var(--page-support-text-dark);
}

.page-support__contact-us-section .page-support__section-title,
.page-support__contact-us-section .page-support__section-description {
  color: var(--page-support-text-dark);
}

.page-support__contact-methods {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-support__contact-card {
  background-color: #f8f8f8;
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--page-support-text-dark);
}

.page-support__contact-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

.page-support__contact-icon {
  width: 100px;
  height: 100px;
  object-fit: contain;
  margin-bottom: 20px;
  max-width: 100%; /* Ensure responsiveness */
  height: auto; /* Ensure responsiveness */
}

.page-support__contact-card-title {
  font-size: 1.5em;
  margin-bottom: 15px;
  color: var(--page-support-secondary-color);
}

.page-support__contact-card p {
  margin-bottom: 20px;
  color: var(--page-support-text-dark);
}

.page-support__contact-card .page-support__btn-secondary {
  background-color: var(--page-support-primary-color);
  color: var(--page-support-text-dark);
  border: 2px solid var(--page-support-primary-color);
}

.page-support__contact-card .page-support__btn-secondary:hover {
  background-color: #e6c200;
  border-color: #e6c200;
}

/* User Guides Section */
.page-support__user-guides-section {
  padding: 60px 0;
}

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

.page-support__guide-card {
  background-color: var(--page-support-card-bg-dark-mode);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  color: var(--page-support-text-light);
}

.page-support__guide-card:hover {
  transform: translateY(-5px);
}

.page-support__guide-image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  max-width: 100%; /* Ensure responsiveness */
  height: auto; /* Ensure responsiveness */
}

.page-support__guide-card h3 {
  padding: 15px 20px 0;
  font-size: 1.4em;
  color: var(--page-support-primary-color);
}

.page-support__guide-card h3 a {
  color: var(--page-support-primary-color);
  text-decoration: none;
}

.page-support__guide-card h3 a:hover {
  color: #e6c200;
}

.page-support__guide-card p {
  padding: 0 20px 15px;
  color: var(--page-support-text-light);
}

.page-support__guide-card .page-support__btn-text {
  display: block;
  text-align: right;
  padding: 0 20px 20px;
}

/* Security Section */
.page-support__security-section {
  padding: 60px 0;
  background-color: var(--page-support-text-light);
  color: var(--page-support-text-dark);
}

.page-support__security-section .page-support__section-title,
.page-support__security-section .page-support__section-description {
  color: var(--page-support-text-dark);
}

.page-support__security-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-support__feature-item {
  background-color: #f8f8f8;
  border-radius: 8px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  color: var(--page-support-text-dark);
}

.page-support__feature-icon {
  width: 80px;
  height: 80px;
  object-fit: contain;
  margin-bottom: 15px;
  max-width: 100%; /* Ensure responsiveness */
  height: auto; /* Ensure responsiveness */
}

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

.page-support__feature-item p {
  color: var(--page-support-text-dark);
}

.page-support__security-section .page-support__btn-primary {
  margin-top: 40px;
  text-align: center;
  width: fit-content;
  margin-left: auto;
  margin-right: auto;
  display: block;
  color: var(--page-support-text-dark);
  background-color: var(--page-support-primary-color);
  border-color: var(--page-support-primary-color);
}

/* Promo Video Section */
.page-support__promo-video-section {
  padding: 60px 0;
  text-align: center;
}

.page-support__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  max-width: 900px;
  margin: 40px auto;
  border-radius: 8px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  width: 100%; /* Ensure responsiveness */
  box-sizing: border-box;
}

.page-support__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 8px;
  display: block; /* Ensure responsiveness */
  max-width: 100%; /* Ensure responsiveness */
}

.page-support__promo-video-section .page-support__btn-primary {
  margin-top: 40px;
  color: var(--page-support-text-dark);
  background-color: var(--page-support-primary-color);
  border-color: var(--page-support-primary-color);
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-support__hero-title {
    font-size: 2.8em;
  }
  .page-support__section-title {
    font-size: 2em;
  }
}

@media (max-width: 768px) {
  .page-support {
    font-size: 16px;
    line-height: 1.6;
  }
  .page-support__hero-section {
    padding: 60px 15px;
    padding-top: var(--header-offset, 120px) !important; /* Ensure mobile header offset */
  }
  .page-support__hero-title {
    font-size: 2.2em;
  }
  .page-support__hero-description {
    font-size: 1em;
  }
  .page-support__btn-primary,
  .page-support__btn-secondary {
    width: 100% !important;
    max-width: 100% !important;
    margin-bottom: 15px;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-support__contact-methods,
  .page-support__guides-grid,
  .page-support__security-features {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-support__container {
    padding: 0 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
  .page-support__faq-question,
  .page-support__faq-answer {
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-support__faq-answer p {
    padding-right: 0;
  }

  /* Image responsiveness for content area */
  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* Video responsiveness */
  .page-support video,
  .page-support__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-support__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    margin-left: 0;
    margin-right: 0;
  }
  .page-support__promo-video-section .page-support__container {
    padding-left: 0;
    padding-right: 0;
  }

  /* Buttons in groups */
  .page-support__cta-buttons,
  .page-support__button-group,
  .page-support__btn-container {
    flex-wrap: wrap !important;
    gap: 10px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-support__promo-video-section .page-support__btn-primary {
    margin-top: 20px;
  }
}

@media (max-width: 480px) {
  .page-support__hero-title {
    font-size: 1.8em;
  }
  .page-support__section-title {
    font-size: 1.8em;
  }
  .page-support__faq-title {
    font-size: 1.1em;
  }
  .page-support__contact-card-title {
    font-size: 1.3em;
  }
}