/* style/support.css */
:root {
  --primary-color: #26A9E0;
  --secondary-color: #EA7C07; /* Màu cho nút Đăng nhập */
  --background-light: #FFFFFF;
  --text-dark: #333333;
  --text-light: #FFFFFF;
  --border-color: #e0e0e0;
}

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

.page-support__dark-bg {
  background-color: var(--primary-color);
  color: var(--text-light);
}

.page-support__light-bg {
  background-color: var(--background-light);
  color: var(--text-dark);
}

.page-support__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  padding-top: 10px; /* Nhỏ hơn so với header-offset */
  overflow: hidden;
}

.page-support__hero-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.page-support__hero-image {
  width: 100%;
  margin-bottom: 30px;
  max-width: 100%;
  box-sizing: border-box;
}

.page-support__hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  border-radius: 8px;
  object-fit: cover;
  min-width: 200px;
  min-height: 200px;
}

.page-support__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  max-width: 800px;
}

.page-support__main-title {
  font-size: clamp(2em, 5vw, 3.5em);
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 20px;
  color: var(--text-light);
  letter-spacing: -0.02em;
}

.page-support__description {
  font-size: 1.1em;
  margin-bottom: 30px;
  color: var(--text-light);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-support__cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: var(--secondary-color);
  color: var(--text-light);
  text-decoration: none;
  border-radius: 5px;
  font-size: 18px;
  font-weight: bold;
  margin-top: 10px;
  transition: all 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__cta-button:hover {
  background: #c76706;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.page-support__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
}

.page-support__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: inherit;
  line-height: 1.3;
}

.page-support__introduction-section .page-support__section-title,
.page-support__how-to-contact-section .page-support__section-title,
.page-support__faq-section .page-support__section-title,
.page-support__cta-section .page-support__section-title {
  color: var(--primary-color);
}

.page-support__paragraph {
  font-size: 1.05em;
  line-height: 1.7;
  margin-bottom: 20px;
  text-align: justify;
}

.page-support__contact-channels-section {
  padding: 60px 20px;
}

.page-support__contact-channels-section .page-support__section-title,
.page-support__commitment-section .page-support__section-title {
  color: var(--text-light);
}

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

.page-support__channel-card,
.page-support__commitment-item {
  background: var(--background-light);
  color: var(--text-dark);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.page-support__channel-card img,
.page-support__commitment-item img {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto 20px;
  border-radius: 5px;
  min-width: 200px;
  min-height: 200px;
  object-fit: cover;
}

.page-support__card-title,
.page-support__item-title {
  font-size: 1.8em;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.page-support__card-description,
.page-support__item-description {
  font-size: 1em;
  line-height: 1.6;
  margin-bottom: 20px;
}

.page-support__btn-primary {
  display: inline-block;
  padding: 12px 25px;
  background: var(--primary-color);
  color: var(--text-light);
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: background-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-support__btn-primary:hover {
  background: #1e87b7;
}

.page-support__btn-secondary {
  display: inline-block;
  padding: 12px 25px;
  background: var(--background-light);
  color: var(--primary-color);
  text-decoration: none;
  border: 2px solid var(--primary-color);
  border-radius: 5px;
  font-weight: bold;
  transition: all 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

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

.page-support__guide-list {
  list-style: disc;
  margin-left: 25px;
  margin-bottom: 30px;
}

.page-support__guide-list li {
  font-size: 1.05em;
  margin-bottom: 10px;
  line-height: 1.6;
}

.page-support__faq-section {
  padding: 60px 20px;
}

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

details.page-support__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--background-light);
}

details.page-support__faq-item summary.page-support__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

details.page-support__faq-item summary.page-support__faq-question::-webkit-details-marker {
  display: none;
}

details.page-support__faq-item summary.page-support__faq-question:hover {
  background: #f5f5f5;
}

.page-support__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--text-dark);
}

.page-support__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}

details.page-support__faq-item .page-support__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: var(--text-dark);
}

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

.page-support__faq-answer .page-support__btn-secondary {
  margin-top: 10px;
}

.page-support__commitment-section {
  padding: 60px 20px;
}

.page-support__cta-section {
  padding: 60px 20px;
  text-align: center;
}

.page-support__cta-section .page-support__paragraph {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .page-support__main-title {
    font-size: clamp(1.8em, 4.5vw, 3em);
  }
  .page-support__section-title {
    font-size: 2em;
  }
  .page-support__channel-card img,
  .page-support__commitment-item img {
    min-
    min-
  }
}

@media (max-width: 768px) {
  .page-support__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-support__hero-image img {
    border-radius: 4px;
  }

  .page-support__cta-button,
  .page-support__btn-primary,
  .page-support__btn-secondary,
  .page-support a[class*="button"],
  .page-support a[class*="btn"] {
    padding: 12px 30px;
    font-size: 16px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    margin-left: 0;
    margin-right: 0;
  }
  
  .page-support__channels-grid,
  .page-support__commitment-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-support__container {
    padding: 30px 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .page-support__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-support__paragraph {
    font-size: 1em;
  }

  details.page-support__faq-item summary.page-support__faq-question {
    padding: 15px;
  }
  .page-support__faq-qtext {
    font-size: 15px;
  }
  details.page-support__faq-item .page-support__faq-answer {
    padding: 0 15px 15px;
  }

  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    min-width: 200px;
    min-height: 200px;
  }
  
  .page-support__channel-card,
  .page-support__commitment-item {
    padding: 20px;
  }

  .page-support__channel-card img,
  .page-support__commitment-item img {
    margin-bottom: 15px;
  }

  .page-support__card-title,
  .page-support__item-title {
    font-size: 1.5em;
  }
}

@media (max-width: 480px) {
  .page-support__main-title {
    font-size: clamp(1.5em, 6vw, 2.5em);
  }
  .page-support__section-title {
    font-size: 1.5em;
  }
  .page-support__cta-button {
    font-size: 15px;
    padding: 10px 25px;
  }
}