.page-register {
  font-family: 'Arial', sans-serif;
  color: #333333; /* Default text color for light body background */
  background-color: #FFFFFF; /* Assuming body background is white from shared.css */
}

.page-register__hero-section {
  padding-top: 10px; /* Small top padding, relying on body for header offset */
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 40px;
}

.page-register__hero-image-wrapper {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
}

.page-register__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: center;
}

.page-register__hero-content {
  max-width: 900px;
  padding: 20px;
  margin-top: 20px;
}

.page-register__main-title {
  font-size: clamp(2.5em, 5vw, 3.5em);
  font-weight: 700;
  line-height: 1.2;
  color: #017439;
  margin-bottom: 20px;
}

.page-register__description {
  font-size: 1.1em;
  line-height: 1.6;
  margin-bottom: 30px;
  color: #555555;
}

.page-register__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1.1em;
  transition: background-color 0.3s ease, transform 0.2s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-register__btn-primary {
  background-color: #C30808; /* Đăng ký color */
  color: #FFFF00; /* Đăng ký font color */
  border: 2px solid #C30808;
}

.page-register__btn-primary:hover {
  background-color: #a00606;
  transform: translateY(-2px);
}

.page-register__form-section {
  padding: 60px 20px;
  background-color: #f9f9f9;
}

.page-register__container {
  max-width: 900px;
  margin: 0 auto;
  width: 100%; /* Ensure container takes full width on smaller screens */
  box-sizing: border-box;
}

.page-register__section-title {
  font-size: 2.2em;
  font-weight: 700;
  color: #017439;
  text-align: center;
  margin-bottom: 40px;
}

.page-register__section-title--light {
  color: #ffffff;
}

.page-register__form-wrapper {
  background-color: #ffffff;
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.page-register__form-group {
  margin-bottom: 25px;
}

.page-register__form-label {
  display: block;
  font-size: 1em;
  font-weight: 600;
  color: #333333;
  margin-bottom: 8px;
}

.page-register__form-input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid #e0e0e0;
  border-radius: 5px;
  font-size: 1em;
  color: #333333;
  box-sizing: border-box;
  transition: border-color 0.3s ease;
}

.page-register__form-input::placeholder {
  color: #aaaaaa;
}

.page-register__form-input:focus {
  border-color: #017439;
  outline: none;
}

.page-register__captcha-group {
  display: flex;
  align-items: center;
  gap: 15px;
}

.page-register__captcha-input {
  flex-grow: 1;
}

.page-register__captcha-image {
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  height: 48px; /* Match input height */
  width: auto;
  display: block;
  max-width: 100%;
  object-fit: contain;
}

.page-register__terms-checkbox {
  display: flex;
  align-items: center;
  margin-bottom: 25px;
  font-size: 0.95em;
}

.page-register__checkbox-input {
  margin-right: 10px;
  min-width: 16px;
  min-height: 16px;
}

.page-register__terms-link {
  color: #017439;
  text-decoration: none;
}

.page-register__terms-link:hover {
  text-decoration: underline;
}

.page-register__submit-btn {
  width: 100%;
  padding: 15px;
  font-size: 1.2em;
  border: none;
  border-radius: 8px;
  background-color: #C30808; /* Đăng ký color */
  color: #FFFF00; /* Đăng ký font color */
  cursor: pointer;
  transition: background-color 0.3s ease, transform 0.2s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-register__submit-btn:hover {
  background-color: #a00606;
  transform: translateY(-2px);
}

.page-register__steps-section {
  padding: 60px 20px;
  background-color: #ffffff;
}

.page-register__steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-bottom: 40px;
}

.page-register__step-card {
  background-color: #f9f9f9;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
  text-align: center;
}

.page-register__step-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  border-radius: 8px;
  margin-bottom: 20px;
  display: block;
  max-width: 100%;
}

.page-register__step-title {
  font-size: 1.4em;
  font-weight: 700;
  color: #017439;
  margin-bottom: 15px;
}

.page-register__step-description {
  font-size: 0.95em;
  line-height: 1.6;
  color: #555555;
}

.page-register__cta-bottom {
  text-align: center;
  padding-top: 20px;
}

.page-register__cta-text {
  font-size: 1.1em;
  color: #333333;
  margin-bottom: 20px;
}

.page-register__btn-secondary {
  background-color: #FFFFFF;
  color: #C30808; /* Đăng nhập color */
  border: 2px solid #C30808;
}

.page-register__btn-secondary:hover {
  background-color: #f0f0f0;
  transform: translateY(-2px);
}

.page-register__faq-section {
  padding: 60px 20px;
  background-color: #017439;
}

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

details.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  border: 1px solid #e0e0e0;
  overflow: hidden;
  background: #fff;
}

details.page-register__faq-item summary.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
}

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

details.page-register__faq-item summary.page-register__faq-question:hover {
  background: #f5f5f5;
}

.page-register__faq-qtext {
  flex: 1;
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: #333333;
}

.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: #666;
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
}

details.page-register__faq-item .page-register__faq-answer {
  padding: 0 20px 20px;
  background: #f9f9f9;
  border-radius: 0 0 5px 5px;
  color: #555555;
}

/* --- Mobile Responsive Styles (max-width: 768px) --- */
@media (max-width: 768px) {
  .page-register__hero-section {
    padding-top: 10px !important; /* Small top padding for mobile */
    padding-bottom: 20px;
  }

  .page-register__hero-content {
    padding: 15px;
    margin-top: 10px;
  }

  .page-register__main-title {
    font-size: clamp(1.8em, 8vw, 2.5em);
    margin-bottom: 15px;
  }

  .page-register__description {
    font-size: 1em;
    margin-bottom: 20px;
  }

  .page-register__btn {
    padding: 12px 20px;
    font-size: 1em;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-register__form-section,
  .page-register__steps-section,
  .page-register__faq-section {
    padding: 40px 15px;
  }

  .page-register__container {
    padding-left: 0;
    padding-right: 0;
  }

  .page-register__section-title {
    font-size: 1.8em;
    margin-bottom: 30px;
  }

  .page-register__form-wrapper {
    padding: 25px;
  }

  .page-register__form-label {
    font-size: 0.95em;
  }

  .page-register__form-input {
    padding: 10px 12px;
    font-size: 0.95em;
  }

  .page-register__captcha-group {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .page-register__captcha-image {
    width: 100%;
    height: auto;
  }

  .page-register__terms-checkbox {
    font-size: 0.9em;
    align-items: flex-start;
  }
  
  .page-register__checkbox-input {
    margin-top: 4px;
  }

  .page-register__submit-btn {
    font-size: 1.1em;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px;
    padding-right: 15px;
  }

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

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

  .page-register__step-image {
    height: 180px;
  }

  .page-register__step-title {
    font-size: 1.2em;
  }

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

  .page-register__cta-text {
    font-size: 1em;
  }

  details.page-register__faq-item summary.page-register__faq-question {
    padding: 15px;
  }

  .page-register__faq-qtext {
    font-size: 15px;
  }
  
  .page-register__faq-toggle {
    font-size: 20px;
    margin-left: 10px;
  }

  details.page-register__faq-item .page-register__faq-answer {
    padding: 0 15px 15px;
  }

  /* General image and container rules for mobile */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block;
  }

  .page-register__container,
  .page-register__form-section,
  .page-register__steps-section,
  .page-register__faq-section {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    /* padding-left and padding-right handled by section padding */
  }

  /* Button containers mobile adaptation */
  .page-register__cta-bottom {
    display: flex;
    flex-direction: column;
    gap: 15px;
    padding-left: 15px;
    padding-right: 15px;
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }
}