:root {
  --primary-color: #11A84E;
  --secondary-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-bg: #11271B;
  --background-color: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;
}

.page-contact {
  font-family: 'Arial', sans-serif;
  color: var(--text-main); /* Assuming body background is dark based on --background-color */
  background-color: var(--background-color);
  line-height: 1.6;
}

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

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

.page-contact__hero-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  z-index: 1;
  max-height: 600px;
}

.page-contact__hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  padding: 80px 20px;
  background: rgba(0, 0, 0, 0.5); /* Semi-transparent overlay for text readability */
  border-radius: 10px;
  margin-top: 100px; /* Adjust to ensure text is below the image */
}

.page-contact__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem); /* Responsive font size */
  color: var(--gold-color);
  margin-bottom: 20px;
  font-weight: bold;
  line-height: 1.2;
}

.page-contact__hero-description {
  font-size: 1.1rem;
  color: var(--text-main);
  margin-bottom: 30px;
}

.page-contact__cta-button {
  display: inline-block;
  padding: 15px 30px;
  background: var(--button-gradient);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.page-contact__cta-button:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-contact__section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  color: var(--gold-color);
  text-align: center;
  margin-bottom: 20px;
  font-weight: bold;
}

.page-contact__section-description {
  font-size: 1rem;
  color: var(--text-secondary);
  text-align: center;
  max-width: 900px;
  margin: 0 auto 40px auto;
}

.page-contact__channels-section,
.page-contact__faq-section,
.page-contact__commitment-section,
.page-contact__social-media-section {
  padding: 60px 0;
}

.page-contact__dark-section {
  background-color: var(--card-bg);
}

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

.page-contact__channel-card {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 30px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-contact__channel-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.3);
}

.page-contact__card-image {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
}

.page-contact__card-title {
  font-size: 1.6rem;
  color: var(--text-main);
  margin-bottom: 15px;
}

.page-contact__card-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-contact__btn-primary {
  display: inline-block;
  padding: 12px 25px;
  background: var(--button-gradient);
  color: #ffffff;
  text-decoration: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: bold;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.page-contact__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.page-contact__email-address,
.page-contact__phone-number {
  font-size: 1rem;
  color: var(--text-main);
  margin-top: 15px;
}

.page-contact__link {
  color: var(--secondary-color);
  text-decoration: none;
}

.page-contact__link:hover {
  text-decoration: underline;
  color: var(--glow-color);
}

.page-contact__social-media-section {
  text-align: center;
  padding-bottom: 60px;
}

.page-contact__social-links {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
}

.page-contact__social-icon-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background-color: var(--primary-color);
  color: #ffffff;
  font-size: 0;
  text-decoration: none;
  transition: background-color 0.3s ease;
  position: relative;
}

.page-contact__social-icon-link::before {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 60%;
}

.page-contact__social-icon-facebook::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M12 2C6.477 2 2 6.477 2 12c0 4.991 3.657 9.128 8.438 9.879V14.25H9.062v-2.25h1.376V10.125c0-1.353.826-2.091 2.03-2.091.583 0 1.085.043 1.233.062v1.425h-.847c-.664 0-.796.315-.796.779v.964h1.767l-.23 1.815h-1.537v5.29c4.78-.751 8.437-4.888 8.437-9.879 0-5.523-4.477-10-10-10z"/></svg>');
}
.page-contact__social-icon-telegram::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M12 2C6.48 2 2 6.48 2 12s4.48 10 10 10 10-4.48 10-10S17.52 2 12 2zm4.33 7.03l-2.06 9.21c-.13.56-.47.69-.95.42l-3.32-2.45-1.6-1.55-2.22-1.07c-.48-.23-.48-.49.1-.73l8.4-3.23c.42-.16.8.06.66.57z"/></svg>');
}
.page-contact__social-icon-zalo::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M12 2C6.477 2 2 6.477 2 12c0 5.523 4.477 10 10 10s10-4.477 10-10c0-5.523-4.477-10-10-10zm2.25 14.5c-.32 0-.6-.11-.84-.33-.24-.22-.36-.48-.36-.78v-.81c0-.28.09-.5.27-.66.18-.16.42-.24.72-.24.3 0 .54.08.72.24.18.16.27.38.27.66v.81c0 .3-.12.56-.36.78-.24.22-.52.33-.84.33zm-4.5 0c-.32 0-.6-.11-.84-.33-.24-.22-.36-.48-.36-.78v-.81c0-.28.09-.5.27-.66.18-.16.42-.24.72-.24.3 0 .54.08.72.24.18.16.27.38.27.66v.81c0 .3-.12.56-.36.78-.24.22-.52.33-.84.33zM12 4.5c-4.142 0-7.5 3.358-7.5 7.5s3.358 7.5 7.5 7.5 7.5-3.358 7.5-7.5-3.358-7.5-7.5-7.5zm0 11.25c-.93 0-1.74-.32-2.43-.96-.69-.64-1.03-1.42-1.03-2.34 0-.92.34-1.7.99-2.34.65-.64 1.45-1.0 2.4-1.0.95 0 1.76.36 2.43 1.0.67.64 1.0 1.42 1.0 2.34 0 .92-.33 1.7-1.0 2.34-.67.64-1.48.96-2.43.96z"/></svg>');
}
.page-contact__social-icon-twitter::before {
  background-image: url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" fill="white"><path d="M22.46 6c-.77.34-1.6.57-2.46.68.88-.53 1.56-1.37 1.88-2.38-.83.49-1.75.85-2.73 1.04C18.32 4.63 17.22 4 16 4c-2.35 0-4.27 1.92-4.27 4.29 0 .34.04.67.11.98C8.28 9.09 5.48 7.56 3.68 5.1c-.36.62-.56 1.34-.56 2.13 0 1.49.75 2.81 1.88 3.59-.69-.02-1.34-.21-1.91-.53v.03c0 2.08 1.48 3.82 3.44 4.21-.36.1-.74.15-1.13.15-.28 0-.55-.03-.8-.08.55 1.71 2.14 2.95 4.03 2.99-1.48 1.16-3.35 1.85-5.38 1.85-.35 0-.7-.02-1.04-.06C2.9 20.29 5.08 21 7.37 21c8.84 0 13.68-7.31 13.68-13.68 0-.21-.01-.42-.01-.63.94-.68 1.75-1.53 2.4-2.5z"/></svg>');
}

.page-contact__social-icon-link:hover {
  background-color: var(--secondary-color);
}

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

.page-contact__faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-contact__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px;
  cursor: pointer;
  color: var(--text-main);
  font-weight: bold;
  font-size: 1.1rem;
  transition: background-color 0.3s ease;
  list-style: none; /* For details/summary */
}

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

.page-contact__faq-question:hover {
  background-color: var(--deep-green);
}

.page-contact__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  margin-left: 15px;
  color: var(--secondary-color);
}

.page-contact__faq-answer {
  padding: 0 20px 20px 20px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out;
}

.page-contact__faq-item[open] .page-contact__faq-answer {
  max-height: 500px; /* Sufficient height for content */
  padding: 0 20px 20px 20px;
}

.page-contact__faq-item.active .page-contact__faq-answer {
  max-height: 2000px !important; /* For JS fallback */
}

.page-contact__faq-item.active .page-contact__faq-toggle {
  content: '−';
}

.page-contact__commitment-section {
  text-align: center;
}

.page-contact__commitment-image {
  width: 100%;
  max-width: 800px;
  height: auto;
  object-fit: cover;
  border-radius: 10px;
  margin: 30px auto;
}

.page-contact__commitment-list {
  list-style: none;
  padding: 0;
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-contact__commitment-item {
  background-color: var(--deep-green);
  border-left: 5px solid var(--secondary-color);
  padding: 15px 20px;
  margin-bottom: 10px;
  border-radius: 5px;
  color: var(--text-main);
  font-size: 1rem;
  text-align: left;
  width: 100%;
  max-width: 600px;
}

.page-contact__cta-section {
  text-align: center;
  padding: 80px 0;
}

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

.page-contact__cta-image {
  width: 100%;
  max-width: 1000px;
  height: auto;
  object-fit: cover;
  border-radius: 10px;
  margin-bottom: 40px;
}

.page-contact__cta-title {
  font-size: clamp(2rem, 4.5vw, 3rem);
  color: var(--gold-color);
  margin-bottom: 20px;
}

.page-contact__cta-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 40px auto;
}

/* Responsive styles */
@media (max-width: 1024px) {
  .page-contact__hero-content {
    margin-top: 50px;
    padding: 60px 20px;
  }
}

@media (max-width: 768px) {
  .page-contact__hero-image {
    max-height: 400px;
  }

  .page-contact__hero-content {
    margin-top: 20px;
    padding: 40px 15px;
  }

  .page-contact__main-title {
    font-size: clamp(2rem, 6vw, 2.8rem);
  }

  .page-contact__hero-description {
    font-size: 1rem;
  }

  .page-contact__section-title {
    font-size: clamp(1.8rem, 5vw, 2.5rem);
  }

  .page-contact__section-description {
    font-size: 0.9rem;
    margin-bottom: 30px;
  }

  .page-contact__channels-section,
  .page-contact__faq-section,
  .page-contact__commitment-section,
  .page-contact__social-media-section,
  .page-contact__cta-section {
    padding: 40px 0;
  }

  .page-contact__channels-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .page-contact__channel-card {
    padding: 20px;
  }

  .page-contact__card-image {
    height: 200px;
  }

  .page-contact__card-title {
    font-size: 1.4rem;
  }

  .page-contact__card-text {
    font-size: 0.9rem;
  }

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

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

  .page-contact__faq-item[open] .page-contact__faq-answer {
    padding: 0 15px 15px 15px;
  }

  .page-contact__social-links {
    flex-wrap: wrap;
    gap: 15px;
  }

  .page-contact__social-icon-link {
    width: 45px;
    height: 45px;
  }

  .page-contact__commitment-item {
    font-size: 0.9rem;
    padding: 12px 15px;
  }

  .page-contact__cta-title {
    font-size: clamp(1.8rem, 5.5vw, 2.5rem);
  }

  .page-contact__cta-description {
    font-size: 1rem;
  }

  /* Mobile image responsiveness */
  .page-contact img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-contact__section,
  .page-contact__card,
  .page-contact__container,
  .page-contact__hero-section,
  .page-contact__channels-section,
  .page-contact__faq-section,
  .page-contact__commitment-section,
  .page-contact__social-media-section,
  .page-contact__cta-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }

  .page-contact__hero-section {
    padding-top: 10px !important;
  }

  /* Mobile button responsiveness */
  .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;
    padding-left: 15px;
    padding-right: 15px;
  }

  .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;
  }

  .page-contact__cta-buttons {
    display: flex;
    flex-direction: column;
  }
}