/* style/support.css */
:root {
  --primary-color: #2F6BFF;
  --secondary-color: #6FA3FF;
  --btn-gradient: linear-gradient(180deg, #4A8BFF 0%, #2F6BFF 100%);
  --card-bg: #FFFFFF;
  --page-bg: #F4F7FB;
  --text-main: #1F2D3D;
  --text-black: #000000;
  --border-color: #D6E2FF;
  --glow-color: #A5C4FF;
}

/* body đã padding-top: var(--header-offset) từ shared.css, không thêm vào đây để tránh trùng lặp */
.page-support {
  font-family: 'Arial', sans-serif;
  color: var(--text-main);
  background-color: var(--page-bg);
  line-height: 1.6;
}

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

.page-support__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 10px 0 60px 0; /* body đã có padding-top, đây chỉ là padding nội dung */
  overflow: hidden;
}

.page-support__hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
  margin-bottom: 40px;
}

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

.page-support__main-title {
  font-size: clamp(2.5rem, 4vw, 3.5rem);
  font-weight: 700;
  color: var(--primary-color);
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-support__description,
.page-support__section-description,
.page-support__card-text,
.page-support__video-caption {
  font-size: 1.1rem;
  margin-bottom: 20px;
  color: var(--text-main);
}

.page-support__keyword {
  font-weight: bold;
  color: var(--primary-color);
}

.page-support__btn-primary,
.page-support__btn-secondary {
  display: inline-block;
  padding: 14px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 600;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  text-align: center;
  white-space: normal; /* Cho phép xuống dòng */
  word-wrap: break-word; /* Ngắt từ nếu cần */
  max-width: 100%;
}

.page-support__btn-primary {
  background: var(--btn-gradient);
  color: #ffffff;
  border: 2px solid transparent;
  box-shadow: 0 4px 15px rgba(47, 107, 255, 0.3);
}

.page-support__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(47, 107, 255, 0.4);
}

.page-support__btn-secondary {
  background: var(--card-bg);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
}

.page-support__btn-secondary:hover {
  background: var(--primary-color);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(47, 107, 255, 0.2);
}

.page-support__section-title {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: 30px;
  line-height: 1.3;
}

.page-support__section-description {
  max-width: 800px;
  margin: 0 auto 40px auto;
  text-align: center;
}

.page-support__channels-section,
.page-support__guides-section,
.page-support__value-proposition-section,
.page-support__final-cta-section {
  padding: 80px 0;
  background-color: var(--page-bg);
}

.page-support__dark-bg {
  background-color: var(--primary-color);
  color: #ffffff;
}

.page-support__dark-bg .page-support__section-title,
.page-support__dark-bg .page-support__section-description,
.page-support__dark-bg .page-support__keyword {
  color: #ffffff;
}

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

.page-support__channel-card,
.page-support__guide-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-support__channel-card:hover,
.page-support__guide-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.12);
}

.page-support__channel-icon,
.page-support__guide-image {
  width: 100%;
  height: auto;
  max-width: 250px;
  margin: 0 auto 20px auto;
  display: block;
  border-radius: 8px;
  object-fit: cover;
}

.page-support__card-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-support__faq-section {
  padding: 80px 0;
}

.page-support__faq-list {
  max-width: 900px;
  margin: 40px auto 0 auto;
}

.page-support__faq-item {
  background-color: var(--card-bg);
  border-radius: 12px;
  margin-bottom: 20px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  border: 1px solid var(--border-color);
  overflow: hidden;
}

.page-support__faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 30px;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  list-style: none;
  outline: none;
}

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

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

.page-support__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  margin-left: 20px;
  color: var(--primary-color);
}

.page-support__faq-item[open] .page-support__faq-toggle {
  content: '−';
}

.page-support__faq-answer {
  padding: 0 30px 20px 30px;
  font-size: 1.05rem;
  color: var(--text-main);
}

.page-support__faq-answer p {
  margin-bottom: 10px;
}

.page-support__responsible-gambling-image {
  width: 100%;
  height: auto;
  max-width: 600px;
  margin: 40px auto 30px auto;
  display: block;
  border-radius: 12px;
  object-fit: cover;
}

.page-support__value-list {
  list-style: none;
  padding: 0;
  margin: 40px auto 0 auto;
  max-width: 900px;
}

.page-support__value-item {
  background-color: var(--card-bg);
  padding: 20px 25px;
  margin-bottom: 15px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.04);
  font-size: 1.1rem;
  color: var(--text-main);
  position: relative;
  padding-left: 45px;
  border: 1px solid var(--border-color);
}

.page-support__value-item::before {
  content: '✓';
  color: var(--primary-color);
  font-weight: bold;
  position: absolute;
  left: 20px;
  top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
}

.page-support__team-image {
  width: 100%;
  height: auto;
  max-width: 700px;
  margin: 50px auto 0 auto;
  display: block;
  border-radius: 12px;
  object-fit: cover;
}

.page-support__video-section {
  padding: 80px 0;
  text-align: center;
  background-color: var(--primary-color);
  color: #ffffff;
}

.page-support__video-section .page-support__section-title,
.page-support__video-section .page-support__section-description {
  color: #ffffff;
}

.page-support__video-wrapper {
  position: relative;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
  height: 0;
  overflow: hidden;
  max-width: 100%;
  width: 100%; /* Đảm bảo width: 100% cho desktop */
  margin: 40px auto;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
}

.page-support__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border: none;
  display: block;
}

.page-support__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
  flex-wrap: wrap; /* Cho phép các nút xuống dòng trên di động */
}

/* --- Responsive Design --- */

@media (max-width: 1024px) {
  .page-support__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }

  .page-support__section-title {
    font-size: clamp(1.8rem, 4vw, 2.5rem);
  }

  .page-support__channels-grid,
  .page-support__guides-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 25px;
  }

  .page-support__faq-item summary {
    font-size: 1.15rem;
    padding: 18px 25px;
  }

  .page-support__faq-answer {
    padding: 0 25px 18px 25px;
  }
}

@media (max-width: 768px) {
  .page-support__hero-section {
    padding: 10px 0 40px 0;
  }

  .page-support__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
    margin-bottom: 15px;
  }

  .page-support__description,
  .page-support__section-description,
  .page-support__card-text,
  .page-support__video-caption,
  .page-support p,
  .page-support li {
    font-size: 1rem;
    line-height: 1.5;
  }

  .page-support__section-title {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
    margin-bottom: 25px;
  }

  .page-support__channels-section,
  .page-support__guides-section,
  .page-support__value-proposition-section,
  .page-support__final-cta-section,
  .page-support__faq-section,
  .page-support__responsible-gambling-section,
  .page-support__video-section {
    padding: 50px 0;
  }

  .page-support__container {
    padding: 0 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }

  .page-support__channels-grid,
  .page-support__guides-grid {
    grid-template-columns: 1fr;
    gap: 20px;
    margin-top: 30px;
  }

  .page-support__channel-card,
  .page-support__guide-card {
    padding: 25px;
  }

  .page-support__faq-item summary {
    font-size: 1.05rem;
    padding: 15px 20px;
  }

  .page-support__faq-answer {
    padding: 0 20px 15px 20px;
  }

  .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__cta-buttons,
  .page-support__button-group,
  .page-support__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-direction: column !important; /* Stack buttons vertically */
    gap: 15px;
  }

  /* Responsive images */
  .page-support img {
    max-width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* Responsive videos */
  .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;
    overflow: hidden !important;
  }

  .page-support__video-section {
    padding-top: 10px !important; /* Giữ padding nhỏ, body đã xử lý header offset */
  }
}