.page-register {
  background-color: #08160F; /* Nền chính tối */
  color: #F2FFF6; /* Chữ chính sáng */
  font-family: Arial, sans-serif;
  line-height: 1.6;
}

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

.page-register__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 10px 0 60px 0;
  overflow: hidden;
  text-align: center;
}

.page-register__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  position: absolute;
  top: 0;
  left: 0;
  filter: brightness(0.6); /* Làm tối ảnh nền để chữ nổi bật */
  z-index: 1;
}

.page-register__hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  padding: 40px 20px;
  background: rgba(17, 39, 27, 0.7); /* Card B G với độ trong suốt */
  border-radius: 12px;
  margin-top: 100px; /* Đảm bảo nội dung không bị che bởi ảnh */
}

.page-register__main-title {
  font-size: clamp(2em, 4vw, 3.5em);
  font-weight: 700;
  color: #F2C14E; /* Gold */
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-register__hero-description {
  font-size: 1.1em;
  color: #F2FFF6; /* Text Main */
  margin-bottom: 30px;
}

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

.page-register__btn-primary,
.page-register__btn-secondary {
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1em;
  transition: all 0.3s ease;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  max-width: 100%;
}

.page-register__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: none;
}

.page-register__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.page-register__btn-secondary {
  background: transparent;
  color: #F2FFF6; /* Text Main */
  border: 2px solid #2E7A4E; /* Border */
}

.page-register__btn-secondary:hover {
  background: rgba(46, 122, 78, 0.2); /* Border color with opacity */
  transform: translateY(-2px);
}

.page-register__btn-large {
  min-width: 200px;
}

.page-register__section-title {
  font-size: clamp(1.8em, 3.5vw, 2.8em);
  color: #F2C14E; /* Gold */
  text-align: center;
  margin-bottom: 40px;
  padding-top: 40px;
}

.page-register__section-description {
  font-size: 1.1em;
  color: #A7D9B8; /* Text Secondary */
  text-align: center;
  max-width: 800px;
  margin: 0 auto 30px auto;
}

.page-register__advantages-section {
  padding: 60px 0;
  background-color: #0A4B2C; /* Deep Green */
}

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

.page-register__card {
  background-color: #11271B; /* Card B G */
  padding: 30px;
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  border: 1px solid #2E7A4E; /* Border */
}

.page-register__card-title {
  font-size: 1.5em;
  color: #57E38D; /* Glow */
  margin-bottom: 15px;
}

.page-register__card-text {
  color: #A7D9B8; /* Text Secondary */
  font-size: 1em;
}

.page-register__guide-section {
  padding: 60px 0;
}

.page-register__guide-steps {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 30px;
  margin-top: 40px;
}

.page-register__step-item {
  flex: 1 1 300px;
  background-color: #11271B; /* Card B G */
  padding: 30px;
  border-radius: 12px;
  text-align: center;
  border: 1px solid #2E7A4E; /* Border */
  position: relative;
  padding-top: 80px;
}

.page-register__step-icon {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  width: 50px;
  height: 50px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8em;
  font-weight: 700;
  position: absolute;
  top: -25px;
  left: 50%;
  transform: translateX(-50%);
  border: 3px solid #08160F;
}

.page-register__step-title {
  font-size: 1.4em;
  color: #F2C14E; /* Gold */
  margin-bottom: 15px;
}

.page-register__step-description {
  color: #A7D9B8; /* Text Secondary */
}

.page-register__cta-container {
  text-align: center;
  margin-top: 60px;
}

.page-register__faq-section {
  padding: 60px 0;
  background-color: #0A4B2C; /* Deep Green */
}

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

.page-register__faq-item {
  background-color: #11271B; /* Card B G */
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid #2E7A4E; /* Border */
  overflow: hidden;
}

.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  cursor: pointer;
  color: #F2FFF6; /* Text Main */
  font-size: 1.2em;
  font-weight: 600;
  background-color: #11271B;
  list-style: none;
}

.page-register__faq-question::-webkit-details-marker {
  display: none;
}

.page-register__faq-toggle {
  font-size: 1.5em;
  font-weight: 700;
  color: #57E38D; /* Glow */
  margin-left: 15px;
}

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

.page-register__faq-answer {
  padding: 0 25px 20px 25px;
  color: #A7D9B8; /* Text Secondary */
  font-size: 1em;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease-out;
}

.page-register__faq-item[open] .page-register__faq-answer {
  max-height: 500px; /* Adjust as needed */
  transition: max-height 0.5s ease-in;
}

.page-register__security-section {
  padding: 60px 0;
}

.page-register__security-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  list-style: none;
  padding: 0;
  margin-top: 40px;
}

.page-register__security-item {
  background-color: #11271B; /* Card B G */
  padding: 30px;
  border-radius: 12px;
  border: 1px solid #2E7A4E; /* Border */
}

.page-register__security-item-title {
  font-size: 1.4em;
  color: #F2C14E; /* Gold */
  margin-bottom: 10px;
}

.page-register__security-item-text {
  color: #A7D9B8; /* Text Secondary */
}

.page-register__call-to-action-section {
  padding: 60px 0;
  background-color: #0A4B2C; /* Deep Green */
  text-align: center;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-register__hero-content {
    margin-top: 60px;
  }
}

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

  .page-register__hero-content {
    margin-top: 40px;
    padding: 30px 15px;
  }

  .page-register__main-title {
    font-size: 2em;
  }

  .page-register__hero-description {
    font-size: 1em;
  }

  .page-register__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }

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

  .page-register__section-title {
    font-size: 2em;
    padding-top: 30px;
  }

  .page-register__section-description {
    font-size: 0.95em;
  }

  .page-register__grid-layout,
  .page-register__guide-steps,
  .page-register__security-list {
    grid-template-columns: 1fr;
    gap: 20px;
  }

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

  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  .page-register__section,
  .page-register__card,
  .page-register__container,
  .page-register__hero-content,
  .page-register__guide-steps,
  .page-register__security-list {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  
  .page-register__faq-question {
    padding: 15px 20px;
    font-size: 1.1em;
  }
  .page-register__faq-answer {
    padding: 0 20px 15px 20px;
  }
}

@media (max-width: 480px) {
  .page-register__main-title {
    font-size: 1.8em;
  }

  .page-register__section-title {
    font-size: 1.8em;
  }

  .page-register__hero-description {
    font-size: 0.9em;
  }
}