/* style/support.css */
/* body đã có padding-top: var(--header-offset) từ shared.css, không cần lặp lại ở đây */

:root {
  --color-primary: #017439;
  --color-secondary: #FFFFFF;
  --color-dark-bg: #121212; /* body background */
  --color-light-text: #ffffff;
  --color-dark-text: #333333;
  --color-card-bg-dark-mode: rgba(255, 255, 255, 0.1);
  --color-button-register: #C30808;
  --color-button-login: #C30808;
  --color-button-text-yellow: #FFFF00;
}

.page-support {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--color-light-text); /* To match dark body background */
  background-color: var(--color-dark-bg); /* Ensure consistency, though body handles it */
}

.page-support__section {
  padding: 60px 0;
  margin: 0 auto;
  max-width: 100%;
  box-sizing: border-box;
}

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

.page-support__section-title {
  font-size: 2.5em;
  font-weight: 700;
  text-align: center;
  margin-bottom: 20px;
  color: var(--color-light-text);
  line-height: 1.2;
}

.page-support__section-description {
  font-size: 1.1em;
  text-align: center;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-light-text);
}

/* Hero Section */
.page-support__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0; /* Small top padding, body handles header offset */
  text-align: center;
  overflow: hidden;
}

.page-support__hero-image-wrapper {
  width: 100%;
  max-height: 600px; /* Limit height to prevent excessive size */
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  margin-bottom: 30px;
}

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

.page-support__hero-content {
  max-width: 900px;
  padding: 0 20px;
  box-sizing: border-box;
}

.page-support__main-title {
  font-size: clamp(2.2em, 4vw, 3.5em); /* Responsive font size for H1 */
  font-weight: 800;
  margin-bottom: 20px;
  color: var(--color-light-text);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-support__hero-description {
  font-size: 1.15em;
  margin-bottom: 30px;
  color: var(--color-light-text);
}

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

.page-support__btn-primary,
.page-support__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.05em;
  transition: background-color 0.3s ease, color 0.3s ease, border-color 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-support__btn-primary {
  background-color: var(--color-button-register);
  color: var(--color-button-text-yellow);
  border: 2px solid var(--color-button-register);
}

.page-support__btn-primary:hover {
  background-color: #a00606;
  border-color: #a00606;
}

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

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

/* Channels Section */
.page-support__channels {
  background-color: var(--color-dark-bg);
}

.page-support__channels-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  justify-content: center;
}

.page-support__channel-card {
  background-color: var(--color-card-bg-dark-mode);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: transform 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

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

.page-support__channel-icon {
  width: 100%;
  max-width: 150px;
  height: auto;
  margin-bottom: 20px;
  border-radius: 8px;
}

.page-support__card-title {
  font-size: 1.5em;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--color-light-text);
}

.page-support__card-text {
  font-size: 1em;
  color: var(--color-light-text);
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-support__btn-small {
  padding: 10px 20px;
  font-size: 0.9em;
}

/* Guide Section */
.page-support__guide {
  background-color: var(--color-dark-bg);
}

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

.page-support__guide-item {
  background-color: var(--color-card-bg-dark-mode);
  padding: 25px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.page-support__guide-title {
  font-size: 1.3em;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-primary);
}

.page-support__guide-item p {
  color: var(--color-light-text);
}

.page-support__guide-image {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 40px;
  border-radius: 12px;
  object-fit: cover;
}

/* Common Issues Section */
.page-support__common-issues {
  background-color: var(--color-dark-bg);
}

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

.page-support__issue-card {
  background-color: var(--color-card-bg-dark-mode);
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.page-support__issue-card .page-support__card-title {
  color: var(--color-primary);
  text-align: left;
}

.page-support__issue-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.page-support__issue-list li {
  margin-bottom: 10px;
  padding-left: 25px;
  position: relative;
  color: var(--color-light-text);
}

.page-support__issue-list li::before {
  content: '•';
  color: var(--color-primary);
  font-weight: bold;
  position: absolute;
  left: 0;
  top: 0;
}

/* Commitment Section */
.page-support__commitment {
  background-color: var(--color-primary);
}

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

.page-support__commitment-item {
  background-color: rgba(255, 255, 255, 0.15);
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.page-support__commitment-title {
  font-size: 1.4em;
  font-weight: 700;
  margin-bottom: 15px;
  color: var(--color-secondary);
}

.page-support__commitment-item p {
  color: var(--color-secondary);
}

.page-support__commitment-image {
  width: 100%;
  height: auto;
  display: block;
  margin-top: 40px;
  border-radius: 12px;
  object-fit: cover;
}

/* FAQ Section */
.page-support__faq {
  background-color: var(--color-dark-bg);
}

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

.page-support__faq-item {
  background-color: var(--color-card-bg-dark-mode);
  margin-bottom: 15px;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.05);
}

.page-support__faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15em;
  font-weight: 600;
  color: var(--color-light-text);
  cursor: pointer;
  outline: none;
  transition: background-color 0.3s ease;
}

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

.page-support__faq-item summary:hover {
  background-color: rgba(255, 255, 255, 0.05);
}

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

.page-support__faq-toggle {
  font-size: 1.5em;
  font-weight: bold;
  margin-left: 20px;
  color: var(--color-primary);
}

.page-support__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1em;
  color: var(--color-light-text);
}

.page-support__faq-answer p {
  margin: 0;
  color: var(--color-light-text);
}

/* Final CTA Section */
.page-support__final-cta {
  background-color: var(--color-primary);
  padding: 80px 0;
}

.page-support__final-cta .page-support__section-title,
.page-support__final-cta .page-support__section-description {
  color: var(--color-secondary);
}

.page-support__final-cta .page-support__btn-primary {
  background-color: var(--color-button-register);
  border-color: var(--color-button-register);
  color: var(--color-button-text-yellow);
}

.page-support__final-cta .page-support__btn-primary:hover {
  background-color: #a00606;
  border-color: #a00606;
}

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

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

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-support__main-title {
    font-size: clamp(2em, 5vw, 3em);
  }
  .page-support__section-title {
    font-size: 2em;
  }
}

@media (max-width: 768px) {
  .page-support__section {
    padding: 40px 0;
  }
  .page-support__container {
    padding: 0 15px;
  }
  .page-support__main-title {
    font-size: clamp(1.8em, 6vw, 2.8em);
  }
  .page-support__hero-description,
  .page-support__section-description,
  .page-support__card-text,
  .page-support__guide-item p,
  .page-support__issue-list li,
  .page-support__commitment-item p,
  .page-support__faq-answer p {
    font-size: 16px;
    line-height: 1.6;
  }

  /* Images responsive */
  .page-support img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-support__hero-image-wrapper,
  .page-support__channels-grid,
  .page-support__guide-grid,
  .page-support__issues-grid,
  .page-support__commitment-grid,
  .page-support__faq-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  
  /* Buttons responsive */
  .page-support__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }
  .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-left: 15px;
    padding-right: 15px;
  }

  .page-support__faq-item summary {
    padding: 15px 20px;
    font-size: 1.05em;
  }
  .page-support__faq-answer {
    padding: 0 20px 15px 20px;
  }
  .page-support__channel-card,
  .page-support__guide-item,
  .page-support__issue-card,
  .page-support__commitment-item {
    padding: 20px;
  }
}

@media (max-width: 480px) {
  .page-support__section-title {
    font-size: 1.8em;
  }
  .page-support__hero-description,
  .page-support__section-description {
    font-size: 1em;
  }
}