.page-register {
  color: #333333; /* Default text color for light background */
  padding-top: 0; /* Reset padding-top here to avoid double padding if main has it */
}

.page-register__hero-section {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
  padding-top: var(--header-offset, 120px); /* Ensure spacing from fixed header */
  background-color: var(--primary-color);
  color: #ffffff;
  overflow: hidden;
}

.page-register__hero-container {
  position: relative;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
}

.page-register__hero-image {
  width: 100%;
  margin-bottom: 30px;
  border-radius: 8px;
  overflow: hidden;
}

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

.page-register__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
}

.page-register__main-title {
  font-size: 3.2em;
  margin-bottom: 20px;
  line-height: 1.2;
  color: #FFFF00; /* Custom font color for register/login */
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.4);
}

.page-register__intro-text {
  font-size: 1.2em;
  margin-bottom: 40px;
  max-width: 800px;
  line-height: 1.6;
  color: #f0f0f0;
}

.page-register__cta-button {
  display: inline-block;
  padding: 15px 40px;
  text-decoration: none;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  margin-top: 20px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  max-width: 100%; /* Ensure button responsiveness */
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-register__btn-register {
  background: #C30808; /* Custom color for register */
  color: #FFFF00; /* Custom font color for register/login */
}

.page-register__btn-register:hover {
  background: #a30606;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-register__btn-download {
  background: var(--secondary-color);
  color: var(--primary-color);
  margin-left: 20px;
}

.page-register__btn-download:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-register__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 20px;
  width: 100%;
  box-sizing: border-box;
}

.page-register__section-title {
  font-size: 2.5em;
  text-align: center;
  margin-bottom: 20px;
  color: var(--primary-color);
}

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

.page-register__section-description {
  font-size: 1.1em;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 50px auto;
  line-height: 1.7;
  color: #555555;
}

.page-register__dark-bg .page-register__section-description {
  color: #e0e0e0;
}

.page-register__light-bg {
  background-color: #ffffff;
  color: #333333;
}

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

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

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

.page-register__benefit-item {
  text-align: center;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-register__benefit-item:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
}

.page-register__benefit-item img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
}

.page-register__benefit-title {
  font-size: 1.5em;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.page-register__benefit-item p {
  font-size: 1em;
  line-height: 1.6;
  color: #555555;
}

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

.page-register__guide-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  margin-top: 50px;
  position: relative;
}

.page-register__guide-steps::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  height: 100%;
  background-color: rgba(255, 255, 255, 0.2);
  z-index: 0;
}

.page-register__step-item {
  position: relative;
  background: rgba(255, 255, 255, 0.1);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  color: #ffffff;
}

.page-register__step-number {
  width: 60px;
  height: 60px;
  background: #C30808; /* Custom color for register */
  color: #FFFF00; /* Custom font color for register/login */
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  font-weight: bold;
  margin: -60px auto 20px auto;
  border: 4px solid var(--primary-color);
  box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.2);
}

.page-register__step-title {
  font-size: 1.6em;
  margin-bottom: 15px;
  color: #FFFF00;
}

.page-register__step-item p, .page-register__step-item ul {
  font-size: 1em;
  line-height: 1.6;
  color: #e0e0e0;
  text-align: left;
}

.page-register__step-item ul {
  list-style-type: disc;
  margin-left: 20px;
  padding-left: 0;
}

.page-register__guide-image {
  grid-column: 1 / -1; /* Span full width */
  text-align: center;
  margin-top: 50px;
}

.page-register__guide-image img {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

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

.page-register__security-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-register__feature-item {
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  background: #ffffff;
  color: #333333;
}

.page-register__feature-title {
  font-size: 1.4em;
  margin-bottom: 15px;
  color: var(--primary-color);
}

.page-register__feature-item p {
  font-size: 1em;
  line-height: 1.6;
  color: #555555;
}

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

.page-register__promotions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-register__promo-card {
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.1);
  background: rgba(255, 255, 255, 0.1);
  color: #ffffff;
  text-align: center;
}

.page-register__promo-card img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
}

.page-register__promo-title {
  font-size: 1.5em;
  margin-bottom: 15px;
  color: #FFFF00;
}

.page-register__promo-card p {
  font-size: 1em;
  line-height: 1.6;
  color: #e0e0e0;
}

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

.page-register__faq-list {
  margin-top: 50px;
}

/* FAQ容器样式 */
.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.08);
}

/* FAQ默认状态 - 答案隐藏 */
.page-register__faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), padding 0.4s ease, opacity 0.4s ease;
  padding: 0 20px;
  opacity: 0;
}

/* FAQ展开状态 - 🚨 使用!important và đủ lớn max-height để đảm bảo có thể mở rộng */
.page-register__faq-item.active .page-register__faq-answer {
  max-height: 2000px !important; /* 🚨 Sử dụng!important để đảm bảo ưu tiên, giá trị đủ lớn để chứa mọi nội dung */
  padding: 20px !important;
  opacity: 1;
  background: #f9f9f9;
  border-radius: 0 0 10px 10px;
}

/* Câu hỏi phong cách */
.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: #fff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  cursor: pointer;
  user-select: none;
  transition: background-color 0.3s ease, border-color 0.3s ease;
  position: relative;
}

.page-register__faq-question:hover {
  background: #f5f5f5;
  border-color: #d0d0d0;
}

.page-register__faq-question:active {
  background: #eeeeee;
}

/* Tiêu đề câu hỏi phong cách */
.page-register__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 1.1em;
  font-weight: 600;
  line-height: 1.5;
  color: var(--primary-color);
  pointer-events: none; /* Ngăn thẻ h3 chặn sự kiện nhấp */
}

/* Biểu tượng chuyển đổi */
.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  line-height: 1;
  color: var(--primary-color);
  transition: transform 0.3s ease, color 0.3s ease;
  flex-shrink: 0;
  margin-left: 15px;
  pointer-events: none; /* Ngăn biểu tượng chặn sự kiện nhấp */
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.page-register__faq-item.active .page-register__faq-toggle {
  transform: rotate(45deg); /* Hoặc sử dụng textContent = '−' */
  color: #C30808; /* Custom color for register */
}

.page-register__faq-answer p {
  color: #555555;
  line-height: 1.6;
}

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

.page-register__final-cta-section .page-register__cta-button {
  margin: 0 10px 20px 10px;
}

.page-register__cta-bottom {
  text-align: center;
  margin-top: 50px;
}

/* General card styling */
.page-register__card {
  background: #ffffff;
  color: #333333;
  border: 1px solid #e0e0e0;
}

/* --- Responsive Design --- */
@media (max-width: 1024px) {
  .page-register__main-title {
    font-size: 2.8em;
  }

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

@media (max-width: 768px) {
  .page-register__hero-section {
    padding-top: var(--header-offset, 120px) !important;
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
  }

  .page-register__main-title {
    font-size: 2.2em;
  }

  .page-register__intro-text {
    font-size: 1em;
    margin-bottom: 30px;
  }

  .page-register__cta-button {
    padding: 12px 30px;
    font-size: 1em;
    margin: 10px 0;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
  }

  .page-register__btn-download {
    margin-left: 0;
  }

  .page-register__final-cta-section .page-register__cta-button {
    margin: 10px 0;
  }

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

  .page-register__section-description {
    font-size: 0.95em;
    margin-bottom: 30px;
  }

  .page-register__benefits-section, 
  .page-register__guide-section, 
  .page-register__security-privacy-section, 
  .page-register__promotions-section, 
  .page-register__faq-section, 
  .page-register__final-cta-section {
    padding: 40px 0;
  }

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

  .page-register__guide-steps::before {
    left: 20px;
  }

  .page-register__step-item {
    text-align: left;
    padding: 25px;
  }

  .page-register__step-number {
    margin: -50px 0 20px 0;
    left: -10px;
    width: 50px;
    height: 50px;
    font-size: 1.8em;
    border: 3px solid var(--primary-color);
  }

  .page-register__step-title {
    font-size: 1.4em;
  }

  .page-register__faq-question {
    padding: 15px;
    flex-wrap: wrap;
  }
  
  .page-register__faq-question h3 {
    font-size: 1em;
    margin-bottom: 0;
    width: calc(100% - 40px);
  }
  
  .page-register__faq-toggle {
    margin-left: 10px;
    width: 24px;
    height: 24px;
    font-size: 20px;
  }
  
  .page-register__faq-answer {
    padding: 0 15px;
  }
  
  .page-register__faq-item.active .page-register__faq-answer {
    padding: 15px !important;
  }

  /* Image responsiveness */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-register__hero-image img,
  .page-register__benefit-item img,
  .page-register__guide-image img,
  .page-register__promo-card img {
    border-radius: 4px;
  }
}