.page-contact {
  background-color: var(--bg-color); /* Sử dụng biến màu nền từ shared.css */
  color: var(--text-main); /* Sử dụng màu chữ chính */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

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

/* Hero Section */
.page-contact__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-contact__hero-image-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  overflow: hidden;
}

.page-contact__hero-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5); /* Giảm độ sáng để chữ dễ đọc */
}

.page-contact__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  color: var(--text-main);
}

.page-contact__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-contact__description {
  font-size: 1.1rem;
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-main);
}

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

/* General Section Styling */
.page-contact__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: var(--text-main);
}

.page-contact__section-text {
  font-size: 1rem;
  text-align: center;
  max-width: 800px;
  margin: 0 auto 40px auto;
  color: var(--text-secondary);
}

/* Channels Section */
.page-contact__channels-section {
  padding: 80px 0;
  background-color: var(--bg-color);
}

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

.page-contact__channel-card {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  border: 1px solid var(--border-color);
}

.page-contact__channel-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

.page-contact__card-title {
  font-size: 1.8rem;
  font-weight: 600;
  margin-bottom: 15px;
  color: var(--text-main);
}

.page-contact__card-text {
  font-size: 1rem;
  margin-bottom: 25px;
  color: var(--text-secondary);
}

.page-contact__info-image {
  display: block;
  margin: 40px auto 0 auto;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.25);
}

/* Form Section */
.page-contact__form-section {
  padding: 80px 0;
  background-color: var(--deep-green);
}

.page-contact__form-wrapper {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  border-radius: 12px;
  padding: 50px;
  max-width: 800px;
  margin: 0 auto;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
  position: relative;
  overflow: hidden;
}

.page-contact__form-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  z-index: 0;
  border-radius: 12px;
}

.page-contact__contact-form {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.page-contact__form-group {
  display: flex;
  flex-direction: column;
}

.page-contact__form-label {
  font-size: 1rem;
  margin-bottom: 8px;
  color: var(--text-main);
  font-weight: 600;
}

.page-contact__form-input,
.page-contact__form-textarea {
  padding: 15px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background-color: rgba(17, 39, 27, 0.7);
  color: var(--text-main);
  font-size: 1rem;
  transition: border-color 0.3s ease;
}

.page-contact__form-input::placeholder,
.page-contact__form-textarea::placeholder {
  color: var(--text-secondary);
}

.page-contact__form-input:focus,
.page-contact__form-textarea:focus {
  border-color: var(--glow);
  outline: none;
}

/* Why Contact Us Section */
.page-contact__why-contact-section {
  padding: 80px 0;
  background-color: var(--bg-color);
}

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

.page-contact__why-item {
  background-color: var(--card-bg);
  border-radius: 12px;
  padding: 25px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.15);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

.page-contact__why-item:hover {
  transform: translateY(-5px);
}

.page-contact__why-item-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--text-main);
}

.page-contact__why-item-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.page-contact__support-image {
  display: block;
  margin: 40px auto 0 auto;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.25);
}

/* FAQ Section */
.page-contact__faq-section {
  padding: 80px 0;
  background-color: var(--deep-green);
}

.page-contact__faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.page-contact__faq-item {
  background-color: var(--card-bg);
  border-radius: 10px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-contact__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  transition: background-color 0.3s ease;
  list-style: none; /* Remove default marker for details summary */
}

.page-contact__faq-question::-webkit-details-marker {
  display: none; /* Hide default marker for Webkit browsers */
}

.page-contact__faq-question:hover {
  background-color: rgba(var(--main-color-rgb), 0.1);
}

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

.page-contact__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  margin-left: 15px;
  transition: transform 0.3s ease;
}

.page-contact__faq-item[open] .page-contact__faq-toggle {
  transform: rotate(45deg); /* Rotate to form an 'x' or '-' */
}

.page-contact__faq-answer {
  padding: 0 25px 20px 25px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

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

.page-contact__faq-image {
  display: block;
  margin: 40px auto 0 auto;
  max-width: 100%;
  height: auto;
  border-radius: 12px;
  box-shadow: 0 6px 25px rgba(0, 0, 0, 0.25);
}

/* Final CTA Section */
.page-contact__final-cta-section {
  padding: 80px 0;
  background-color: var(--bg-color);
  text-align: center;
}

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

/* Buttons */
.page-contact__btn-primary,
.page-contact__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 700;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  text-align: center;
  box-sizing: border-box;
}

.page-contact__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-contact__btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
}

.page-contact__btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--border-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.page-contact__btn-secondary:hover {
  background-color: rgba(var(--main-color-rgb), 0.1);
  transform: translateY(-3px);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

/* Global Image/Video/Button Responsive Styles */
.page-contact img {
  max-width: 100%;
  height: auto;
  display: block;
}

.page-contact video,
.page-contact__video {
  max-width: 100%;
  width: 100%;
  height: auto;
  display: block;
}

.page-contact__video-section,
.page-contact__video-container,
.page-contact__video-wrapper {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-contact__cta-button,
.page-contact__btn-primary,
.page-contact__btn-secondary,
.page-contact a[class*="button"],
.page-contact a[class*="btn"] {
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-contact__cta-buttons,
.page-contact__button-group,
.page-contact__btn-container {
  width: 100%;
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

/* Media Queries for Mobile */
@media (max-width: 768px) {
  .page-contact__container {
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-contact__hero-section {
    padding: 40px 15px;
    padding-top: 10px !important; /* body đã xử lý header-offset */
  }

  .page-contact__main-title {
    font-size: 2rem; /* Adjusted for smaller screens */
  }

  .page-contact__description {
    font-size: 0.95rem;
  }

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

  .page-contact__btn-primary,
  .page-contact__btn-secondary {
    width: 100% !important;
    padding: 12px 20px;
    font-size: 1rem;
  }

  .page-contact__channels-section,
  .page-contact__form-section,
  .page-contact__why-contact-section,
  .page-contact__faq-section,
  .page-contact__final-cta-section {
    padding: 50px 0;
  }

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

  .page-contact__form-wrapper {
    padding: 30px;
  }

  .page-contact__section-title {
    font-size: 1.8rem;
  }

  .page-contact__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }

  .page-contact__faq-answer {
    font-size: 0.9rem;
    padding: 0 20px 15px 20px;
  }

  /* Force responsive for all images, videos, buttons */
  .page-contact img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-contact video,
  .page-contact__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-contact__video-section,
  .page-contact__video-container,
  .page-contact__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  .page-contact__cta-button,
  .page-contact__btn-primary,
  .page-contact__btn-secondary,
  .page-contact a[class*="button"],
  .page-contact a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }
  .page-contact__cta-buttons,
  .page-contact__button-group,
  .page-contact__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-wrap: wrap !important;
    gap: 10px;
    overflow: hidden !important;
  }
  .page-contact__why-item,
  .page-contact__channel-card {
    padding: 20px;
  }
}

/* Custom Colors */
:root {
  --main-color: #11A84E;
  --secondary-color: #22C768;
  --bg-color: #08160F;
  --card-bg: #11271B;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;
  --main-color-rgb: 17, 168, 78; /* RGB for #11A84E */
}

.page-contact__dark-bg {
  background-color: var(--deep-green);
  color: var(--text-main);
}

.page-contact__light-bg {
  background-color: var(--bg-color);
  color: var(--text-main);
}