/* style/support.css */
:root {
  --primary-color: #FFD700; /* Vàng kim */
  --secondary-color: #E53E3E; /* Đỏ nhấn */
  --dark-bg-color: #1A202C; /* Xám đậm chủ đạo */
  --text-light: #ffffff;
  --text-dark: #333333;
  --card-bg-dark: rgba(255, 255, 255, 0.1);
  --card-bg-light: #ffffff;
  --border-color: #e0e0e0;
  --shadow-light: rgba(0, 0, 0, 0.1);
  --shadow-medium: rgba(0, 0, 0, 0.15);
}

.page-support {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-light); /* Mặc định chữ trắng trên nền body tối */
  padding-top: 120px; /* Đảm bảo nội dung không bị header cố định che khuất trên desktop */
  background-color: #0d0d0d; /* Nền body tối từ shared.css */
}

@media (max-width: 768px) {
  .page-support {
    padding-top: 100px; /* Điều chỉnh padding-top cho thiết bị di động */
  }
}

/* Phần tiêu đề chính và CTA */
.page-support__title-section {
  text-align: center;
  padding: 80px 20px;
  background: linear-gradient(135deg, var(--dark-bg-color) 0%, #0d0d0d 100%);
  color: var(--text-light);
  position: relative;
  overflow: hidden;
}

.page-support__title-container {
  max-width: 900px;
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.page-support__main-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  color: var(--primary-color);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
  font-weight: 700;
}

.page-support__title-description {
  font-size: 1.2em;
  margin-bottom: 40px;
  line-height: 1.8;
  color: #e0e0e0;
}

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

.page-support__cta-button {
  display: inline-block;
  padding: 15px 35px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px var(--shadow-medium);
  white-space: normal;
  word-wrap: break-word;
}

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

.page-support__btn-primary:hover {
  background: darken(var(--primary-color), 10%);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--shadow-light);
}

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

.page-support__btn-secondary:hover {
  background: var(--primary-color);
  color: var(--dark-bg-color);
  transform: translateY(-3px);
  box-shadow: 0 6px 20px var(--shadow-light);
}

/* Phần FAQ */
.page-support__faq-section {
  padding: 80px 20px;
  background-color: var(--card-bg-light);
  color: var(--text-dark);
}

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

.page-support__faq-title {
  text-align: center;
  font-size: 2.5em;
  margin-bottom: 50px;
  color: var(--dark-bg-color);
  font-weight: 700;
}

.page-support__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.08);
}

.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-support__faq-question:hover {
  background: #f5f5f5;
  border-color: #d0d0d0;
}

.page-support__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 1.1em;
  font-weight: 600;
  line-height: 1.5;
  pointer-events: none; /* Ngăn chặn h3 chặn sự kiện click */
  color: var(--dark-bg-color);
}

.page-support__faq-toggle {
  font-size: 28px;
  font-weight: bold;
  line-height: 1;
  color: var(--dark-bg-color);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none; /* Ngăn chặn icon chặn sự kiện click */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
}

.page-support__faq-item.active .page-support__faq-question {
  background: #f0f0f0;
  border-bottom-left-radius: 0;
  border-bottom-right-radius: 0;
  border-color: #d0d0d0;
}

.page-support__faq-item.active .page-support__faq-toggle {
  transform: rotate(180deg);
  color: var(--primary-color);
}

.page-support__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
  padding: 0 25px;
  opacity: 0;
  background: #f9f9f9;
  border-left: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  border-bottom-left-radius: 8px;
  border-bottom-right-radius: 8px;
}

.page-support__faq-item.active .page-support__faq-answer {
  max-height: 2000px !important; /* Đủ lớn để chứa mọi nội dung */
  padding: 20px 25px !important;
  opacity: 1;
}

.page-support__faq-answer p {
  margin: 0;
  font-size: 1em;
  line-height: 1.7;
  color: #555555;
}

/* Phần giới thiệu thương hiệu */
.page-support__brand-section {
  padding: 80px 20px;
  background-color: var(--dark-bg-color);
  color: var(--text-light);
}

.page-support__brand-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-support__brand-title {
  text-align: center;
  font-size: 2.5em;
  margin-bottom: 50px;
  color: var(--primary-color);
  font-weight: 700;
}

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

.page-support__brand-item {
  background: var(--card-bg-dark);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 15px var(--shadow-medium);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-support__brand-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.page-support__brand-item h3 {
  font-size: 1.5em;
  color: var(--primary-color);
  margin-top: 20px;
  margin-bottom: 15px;
  font-weight: 600;
}

.page-support__brand-item p, .page-support__brand-item ul {
  font-size: 1em;
  line-height: 1.7;
  color: #e0e0e0;
  text-align: left;
}

.page-support__brand-item ul {
  list-style: disc inside;
  padding-left: 20px;
}

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

.page-support__brand-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 15px;
  object-fit: cover;
  min-width: 200px; /* Đảm bảo kích thước tối thiểu */
  min-height: 200px;
}

/* Phần blog */
.page-support__blog-section {
  padding: 80px 20px;
  background-color: var(--card-bg-light);
  color: var(--text-dark);
}

.page-support__blog-container {
  max-width: 1200px;
  margin: 0 auto;
}

.page-support__blog-title {
  text-align: center;
  font-size: 2.5em;
  margin-bottom: 50px;
  color: var(--dark-bg-color);
  font-weight: 700;
}

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

.page-support__blog-item {
  background: var(--card-bg-light);
  border-radius: 10px;
  box-shadow: 0 4px 15px var(--shadow-light);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-support__blog-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px var(--shadow-medium);
}

.page-support__blog-link {
  text-decoration: none;
  display: block;
  color: inherit;
}

.page-support__blog-item-image {
  width: 100%;
  height: 220px; /* Chiều cao cố định cho ảnh thumbnail */
  object-fit: cover;
  display: block;
  min-width: 200px; /* Đảm bảo kích thước tối thiểu */
  min-height: 200px;
}

.page-support__blog-item-content {
  padding: 20px;
}

.page-support__blog-item-title {
  font-size: 1.3em;
  color: var(--dark-bg-color);
  margin-bottom: 10px;
  line-height: 1.4;
  font-weight: 600;
}

.page-support__blog-item-excerpt {
  font-size: 0.95em;
  color: #666666;
  margin-bottom: 15px;
  min-height: 60px; /* Đảm bảo chiều cao tối thiểu cho đoạn trích */
  overflow: hidden;
  text-overflow: ellipsis;
  display: -webkit-box;
  -webkit-line-clamp: 3; /* Giới hạn 3 dòng */
  -webkit-box-orient: vertical;
}

.page-support__blog-item-date {
  font-size: 0.85em;
  color: #999999;
  display: block;
}

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

  .page-support__faq-title,
  .page-support__brand-title,
  .page-support__blog-title {
    font-size: 2.2em;
  }
}

@media (max-width: 768px) {
  .page-support {
    padding-left: 15px;
    padding-right: 15px;
    box-sizing: border-box;
  }

  .page-support__title-section,
  .page-support__faq-section,
  .page-support__brand-section,
  .page-support__blog-section {
    padding: 60px 15px;
    max-width: 100%;
    width: 100%;
    box-sizing: border-box;
  }

  .page-support__title-container,
  .page-support__faq-container,
  .page-support__brand-container,
  .page-support__blog-container {
    padding-left: 0;
    padding-right: 0;
  }

  .page-support__main-title {
    font-size: 2em;
    line-height: 1.3;
  }

  .page-support__title-description {
    font-size: 1em;
    margin-bottom: 30px;
  }

  .page-support__cta-buttons {
    flex-direction: column;
    gap: 15px;
  }

  .page-support__cta-button {
    width: 100%;
    max-width: 100% !important;
    box-sizing: border-box !important;
    padding: 12px 25px;
    font-size: 1em;
  }

  .page-support__faq-title,
  .page-support__brand-title,
  .page-support__blog-title {
    font-size: 2em;
    margin-bottom: 40px;
  }

  .page-support__faq-question {
    padding: 15px 20px;
  }

  .page-support__faq-question h3 {
    font-size: 1em;
  }

  .page-support__faq-toggle {
    font-size: 24px;
    width: 28px;
    height: 28px;
  }

  .page-support__faq-answer {
    padding: 0 20px;
  }

  .page-support__faq-item.active .page-support__faq-answer {
    padding: 15px 20px !important;
  }

  .page-support__brand-item {
    padding: 25px;
  }

  .page-support__brand-item h3 {
    font-size: 1.3em;
  }

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

  .page-support__blog-item-image {
    height: 180px;
  }

  /* Tất cả hình ảnh trong trang */
  .page-support img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }

  /* Tất cả các container chứa hình ảnh/video */
  .page-support__brand-item,
  .page-support__blog-item,
  .page-support__blog-item-content,
  .page-support__title-section,
  .page-support__faq-section,
  .page-support__brand-section,
  .page-support__blog-section,
  .page-support__faq-container,
  .page-support__brand-container,
  .page-support__blog-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 0;
    padding-right: 0;
    overflow: hidden;
  }
}

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

  .page-support__faq-title,
  .page-support__brand-title,
  .page-support__blog-title {
    font-size: 1.8em;
  }

  .page-support__cta-button {
    padding: 10px 20px;
    font-size: 0.95em;
  }

  .page-support__faq-question h3 {
    font-size: 0.95em;
  }

  .page-support__faq-answer p {
    font-size: 0.9em;
  }

  .page-support__brand-item h3 {
    font-size: 1.2em;
  }

  .page-support__blog-item-title {
    font-size: 1.1em;
  }
}