:root {
  --main-color: #11A84E; /* Chủ đạo */
  --secondary-color: #22C768; /* Phụ trợ */
  --button-gradient-start: #2AD16F;
  --button-gradient-end: #13994A;
  --card-bg: #11271B;
  --background: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border: #2E7A4E;
  --glow: #57E38D;
  --gold: #F2C14E;
  --divider: #1E3A2A;
  --deep-green: #0A4B2C;

  /* RGB values for rgba usage */
  --main-color-rgb: 17, 168, 78;
  --secondary-color-rgb: 34, 199, 104;
  --glow-rgb: 87, 227, 141;
}

/* style/register.css */
/* body đã padding-top: var(--header-offset) từ shared.css; trang này không cần lặp lại */
.page-register {
  /* Thiết lập màu chữ mặc định cho trang, dựa trên màu nền của body (giả định shared.css có nền tối) */
  color: var(--text-main); /* Sử dụng màu chữ chính đã định nghĩa */
  background-color: var(--background); /* Sử dụng màu nền chính đã định nghĩa */
}

.page-register__hero-section {
  position: relative;
  display: flex;
  flex-direction: column; /* Đảm bảo hình ảnh trên, nội dung dưới */
  align-items: center;
  justify-content: center;
  padding: 10px 20px 60px; /* Chỉ 10px padding-top */
  background-color: var(--deep-green); /* Nền xanh đậm */
  overflow: hidden; /* Đảm bảo không tràn */
}

.page-register__hero-image-wrapper {
  width: 100%;
  max-width: 100%;
  overflow: hidden;
  margin-bottom: 20px; /* Khoảng cách giữa ảnh và nội dung */
}

.page-register__hero-image {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  border-radius: 12px;
}

.page-register__hero-content {
  text-align: center;
  max-width: 900px;
  width: 100%;
  padding: 0 15px;
  box-sizing: border-box;
  z-index: 1; /* Đảm bảo nội dung không bị ảnh đè */
}

.page-register__main-title {
  font-size: clamp(2.2rem, 4vw, 3.5rem); /* H1 font size, dùng clamp */
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 15px;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-register__hero-description {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 30px;
  line-height: 1.6;
}

.page-register__cta-buttons {
  display: flex;
  flex-wrap: wrap; /* Cho phép nút xuống dòng trên di động */
  gap: 20px;
  justify-content: center;
  margin-top: 20px;
}

.page-register__btn-primary,
.page-register__btn-secondary {
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%; /* Đảm bảo nút không tràn trên di động */
  box-sizing: border-box;
  white-space: normal; /* Cho phép chữ xuống dòng */
  word-wrap: break-word; /* Cho phép ngắt từ */
  text-align: center;
}

.page-register__btn-primary {
  background: linear-gradient(180deg, var(--button-gradient-start) 0%, var(--button-gradient-end) 100%);
  color: var(--text-main); /* Màu chữ trắng */
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-register__btn-primary:hover {
  background: linear-gradient(180deg, var(--button-gradient-end) 0%, var(--button-gradient-start) 100%);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

.page-register__btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 2px solid var(--glow);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
}

.page-register__btn-secondary:hover {
  background-color: rgba(var(--glow-rgb), 0.1);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* Common Section Styles */
.page-register__form-section,
.page-register__benefits-section,
.page-register__how-to-register-section,
.page-register__faq-section,
.page-register__promotion-cta {
  padding: 80px 20px;
  text-align: center;
}

.page-register__dark-section {
  background-color: var(--background); /* Màu nền tối */
  color: var(--text-main);
}

.page-register__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  color: var(--text-main);
  margin-bottom: 20px;
  font-weight: 700;
  line-height: 1.3;
}

.page-register__section-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 800px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

.page-register__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
  box-sizing: border-box;
}

/* Registration Form */
.page-register__registration-form {
  background-color: var(--card-bg); /* Màu nền thẻ */
  padding: 40px;
  border-radius: 12px;
  max-width: 600px;
  margin: 0 auto;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
  text-align: left;
}

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

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

.page-register__form-input {
  width: 100%;
  padding: 14px 18px;
  border: 1px solid var(--border); /* Màu viền */
  border-radius: 8px;
  background-color: var(--deep-green); /* Nền input hơi đậm hơn */
  color: var(--text-main);
  font-size: 1rem;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
  box-sizing: border-box;
}

.page-register__form-input::placeholder {
  color: var(--text-secondary);
  opacity: 0.7;
}

.page-register__form-input:focus {
  border-color: var(--glow);
  box-shadow: 0 0 0 3px rgba(var(--glow-rgb), 0.3);
  outline: none;
}

.page-register__form-agreement {
  display: flex;
  align-items: flex-start;
  margin-bottom: 30px;
}

.page-register__checkbox {
  margin-right: 12px;
  min-width: 18px; /* Kích thước tối thiểu cho checkbox */
  min-height: 18px;
  accent-color: var(--main-color); /* Màu checkbox */
  cursor: pointer;
}

.page-register__checkbox-label {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

.page-register__link {
  color: var(--glow); /* Màu link nổi bật */
  text-decoration: none;
  font-weight: 500;
  transition: color 0.3s ease;
}

.page-register__link:hover {
  color: var(--gold);
  text-decoration: underline;
}

.page-register__submit-button {
  width: 100%;
  padding: 16px;
  font-size: 1.2rem;
  font-weight: 700;
  border: none;
  border-radius: 8px;
  background: linear-gradient(180deg, var(--button-gradient-start) 0%, var(--button-gradient-end) 100%);
  color: var(--text-main);
  cursor: pointer;
  transition: background 0.3s ease, transform 0.3s ease;
  box-sizing: border-box;
}

.page-register__submit-button:hover {
  background: linear-gradient(180deg, var(--button-gradient-end) 0%, var(--button-gradient-start) 100%);
  transform: translateY(-2px);
}

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

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

.page-register__benefit-card {
  background-color: var(--card-bg);
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-register__benefit-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.page-register__benefit-icon {
  width: 100%; /* Đảm bảo hình ảnh không tràn */
  max-width: 250px; /* Kích thước tối đa cho icon */
  height: auto;
  margin-bottom: 20px;
  display: block;
  margin-left: auto;
  margin-right: auto;
  border-radius: 8px; /* Làm tròn góc ảnh */
  object-fit: cover;
  min-width: 200px; /* Tối thiểu 200px */
  min-height: 200px; /* Tối thiểu 200px */
}

.page-register__card-title {
  font-size: 1.4rem;
  color: var(--text-main);
  margin-bottom: 15px;
  font-weight: 600;
  line-height: 1.4;
}

.page-register__card-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* How to Register Section */
.page-register__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-register__step-card {
  background-color: var(--card-bg);
  padding: 30px;
  border: 1px solid var(--border);
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.2);
}

.page-register__step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: linear-gradient(180deg, var(--button-gradient-start) 0%, var(--button-gradient-end) 100%);
  color: var(--text-main);
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 20px;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.3);
}

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

/* FAQ Section */
.page-register__faq-list {
  max-width: 900px;
  margin: 50px auto 0;
  text-align: left;
}

.page-register__faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  background-color: var(--deep-green); /* Nền câu hỏi hơi đậm */
  transition: background-color 0.3s ease;
  list-style: none; /* Ẩn marker mặc định của summary */
}

.page-register__faq-question::-webkit-details-marker {
  display: none; /* Ẩn marker mặc định trên Webkit */
}

.page-register__faq-question:hover {
  background-color: rgba(var(--main-color-rgb), 0.2);
}

.page-register__faq-toggle {
  font-size: 1.8rem;
  line-height: 1;
  color: var(--glow);
  transition: transform 0.3s ease;
}

.page-register__faq-item[open] .page-register__faq-toggle {
  transform: rotate(45deg); /* Xoay dấu cộng thành dấu x */
}

.page-register__faq-answer {
  padding: 0 25px 20px;
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.6;
  max-height: 0; /* Mặc định ẩn */
  overflow: hidden;
  transition: max-height 0.5s ease-out, padding 0.5s ease-out;
}

.page-register__faq-item[open] .page-register__faq-answer {
  max-height: 500px; /* Đặt giá trị đủ lớn để hiển thị nội dung */
  padding-top: 15px;
}

.page-register__faq-answer p {
  margin: 0;
}

/* Promotion CTA */
.page-register__promotion-cta {
  background-image: linear-gradient(rgba(17, 168, 78, 0.8), rgba(34, 199, 104, 0.8)), url("[GALLERY:bg:1920x400:sm66 apk promotions,bonus background,green gold,abstract]");
  background-size: cover;
  background-position: center;
  color: var(--text-main);
  padding: 100px 20px;
  border-radius: 12px;
  margin: 60px auto;
  max-width: 1200px;
}

/* Ensure contrast for all text elements */
.page-register h1,
.page-register h2,
.page-register h3,
.page-register h4,
.page-register h5,
.page-register h6 {
  color: var(--text-main);
}

.page-register p,
.page-register li,
.page-register label {
  color: var(--text-secondary);
}

/* Override for specific elements where contrast needs to be absolute */
.page-register__btn-primary {
  color: var(--text-main); /* Ensure white text on dark green button */
}
.page-register__btn-secondary {
  color: var(--text-main); /* Ensure white text on transparent/green border button */
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-register__hero-section {
    padding: 10px 15px 50px;
  }
  .page-register__main-title {
    font-size: clamp(2rem, 5vw, 3rem);
  }
  .page-register__hero-description {
    font-size: 1rem;
  }
  .page-register__section-title {
    font-size: clamp(1.6rem, 4.5vw, 2.5rem);
  }
  .page-register__form-section,
  .page-register__benefits-section,
  .page-register__how-to-register-section,
  .page-register__faq-section,
  .page-register__promotion-cta {
    padding: 60px 15px;
  }
}

@media (max-width: 768px) {
  /* Global responsive styles for content area */
  .page-register__section,
  .page-register__card,
  .page-register__container,
  .page-register__registration-form,
  .page-register__promotion-cta {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    margin-left: auto;
    margin-right: auto;
  }

  /* Images responsive styles */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }

  /* Videos responsive styles (if any) */
  .page-register video,
  .page-register__video {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
  }
  .page-register__video-section,
  .page-register__video-container,
  .page-register__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    overflow: hidden !important;
  }
  .page-register__video-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset */
  }
  .page-register__video-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  /* Buttons responsive styles */
  .page-register__cta-button,
  .page-register__btn-primary,
  .page-register__btn-secondary,
  .page-register a[class*="button"],
  .page-register 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;
    margin-left: auto;
    margin-right: auto;
  }
  .page-register__cta-buttons,
  .page-register__button-group,
  .page-register__btn-container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-direction: column !important; /* Đảm bảo nút xếp chồng trên di động */
    gap: 15px !important;
  }

  .page-register__main-title {
    font-size: 2rem;
  }
  .page-register__hero-description {
    font-size: 0.95rem;
  }
  .page-register__section-title {
    font-size: 1.8rem;
  }
  .page-register__section-description {
    font-size: 0.9rem;
  }
  .page-register__registration-form {
    padding: 30px 20px;
  }
  .page-register__form-label,
  .page-register__checkbox-label {
    font-size: 0.9rem;
  }
  .page-register__form-input {
    padding: 12px 15px;
    font-size: 0.95rem;
  }
  .page-register__submit-button {
    font-size: 1.1rem;
    padding: 14px;
  }
  .page-register__benefits-grid,
  .page-register__steps-grid {
    grid-template-columns: 1fr;
  }
  .page-register__benefit-card,
  .page-register__step-card {
    padding: 25px;
  }
  .page-register__card-title {
    font-size: 1.2rem;
  }
  .page-register__card-text {
    font-size: 0.85rem;
  }
  .page-register__faq-question {
    font-size: 1rem;
    padding: 15px 20px;
  }
  .page-register__faq-answer {
    font-size: 0.9rem;
    padding: 0 20px 15px;
  }
  .page-register__promotion-cta {
    padding: 80px 15px;
  }
}