:root {
    --primary-color: #017439;
    --secondary-color: #C30808; /* For Register/Login buttons */
    --text-color-light: #FFFFFF; /* For dark backgrounds */
    --text-color-dark: #333333; /* For light backgrounds */
    --background-light: #FFFFFF;
    --background-dark: #017439;
    --font-color-register-login: #FFFF00; /* Custom color for register/login button font */
}

/* Base styles for the register page */
.page-register {
    font-family: 'Arial', sans-serif;
    line-height: 1.6;
    color: var(--text-color-dark); /* Default text color for light body background */
    background-color: var(--background-light); /* Explicitly set for content area */
}

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

.page-register__section-title {
    font-size: 36px;
    color: var(--primary-color);
    text-align: center;
    margin-bottom: 20px;
    font-weight: bold;
}

.page-register__section-description {
    font-size: 18px;
    color: var(--text-color-dark);
    text-align: center;
    margin-bottom: 40px;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

/* Hero Section */
.page-register__hero-section {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding-top: var(--header-offset, 120px); /* Fixed header offset */
    padding-bottom: 60px;
    overflow: hidden; /* Ensure content doesn't spill */
    min-height: 500px;
}

.page-register__hero-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.page-register__hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5); /* Dark overlay for text readability */
    z-index: 1;
}

.page-register__hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: 20px;
    box-sizing: border-box;
}

.page-register__main-title {
    font-size: 48px;
    color: var(--text-color-light);
    margin-bottom: 20px;
    line-height: 1.2;
    font-weight: bold;
}

.page-register__hero-description {
    font-size: 20px;
    color: var(--text-color-light);
    margin-bottom: 40px;
}

.page-register__cta-button {
    display: inline-block;
    padding: 15px 40px;
    background: var(--secondary-color); /* Custom color for Register/Login */
    color: var(--font-color-register-login); /* Custom font color */
    text-decoration: none;
    border-radius: 8px;
    font-size: 20px;
    font-weight: bold;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
}

.page-register__cta-button:hover {
    background: #B00707; /* Darker red for hover */
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

/* Form Section */
.page-register__form-section {
    padding: 60px 0;
}

.page-register__form {
    max-width: 600px;
    margin: 0 auto;
    background: var(--background-light);
    padding: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
    border: 1px solid #e0e0e0;
}

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

.page-register__form-label {
    display: block;
    margin-bottom: 10px;
    font-size: 16px;
    font-weight: bold;
    color: var(--text-color-dark);
}

.page-register__form-input {
    width: 100%;
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 5px;
    font-size: 16px;
    box-sizing: border-box;
    transition: border-color 0.3s ease;
}

.page-register__form-input:focus {
    border-color: var(--primary-color);
    outline: none;
    box-shadow: 0 0 0 3px rgba(1, 116, 57, 0.2);
}

.page-register__checkbox-group {
    display: flex;
    align-items: center;
    margin-bottom: 25px;
}

.page-register__form-checkbox {
    margin-right: 10px;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.page-register__form-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: bold;
}

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

.page-register__form-link--login {
    color: var(--secondary-color);
}

.page-register__submit-button {
    width: 100%;
    padding: 18px;
    background: var(--secondary-color); /* Custom color for Register/Login */
    color: var(--font-color-register-login); /* Custom font color */
    border: none;
    border-radius: 8px;
    font-size: 20px;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.3s ease, box-shadow 0.3s ease;
}

.page-register__submit-button:hover {
    background: #B00707; /* Darker red for hover */
    transform: translateY(-2px);
    box-shadow: 0 6px 15px rgba(0, 0, 0, 0.3);
}

.page-register__login-prompt {
    text-align: center;
    margin-top: 30px;
    font-size: 16px;
    color: var(--text-color-dark);
}

/* Benefits Section */
.page-register__benefits-section {
    background: var(--background-dark); /* Dark background */
    color: var(--text-color-light); /* Light text */
    padding: 60px 0;
}

.page-register__benefits-section .page-register__section-title {
    color: var(--text-color-light);
}

.page-register__benefits-section .page-register__section-description {
    color: var(--text-color-light);
}

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

.page-register__benefit-card {
    background: rgba(255, 255, 255, 0.1); /* Slightly transparent white for dark background */
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
}

.page-register__benefit-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--text-color-light);
    font-weight: bold;
}

.page-register__benefit-text {
    font-size: 16px;
    color: var(--text-color-light);
    margin-bottom: 15px;
}

.page-register__benefit-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-top: 20px;
    object-fit: cover;
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
}

/* How to Register Section */
.page-register__how-to-register-section {
    padding: 60px 0;
}

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

.page-register__step-item {
    background: var(--background-light);
    padding: 30px;
    border-radius: 10px;
    text-align: center;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    border: 1px solid #e0e0e0;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.page-register__step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--text-color-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    font-weight: bold;
    margin-bottom: 20px;
}

.page-register__step-title {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--primary-color);
    font-weight: bold;
}

.page-register__step-text {
    font-size: 16px;
    color: var(--text-color-dark);
    margin-bottom: 15px;
}

.page-register__step-image {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    margin-top: 20px;
    object-fit: cover;
    min-width: 200px; /* Enforce min image size */
    min-height: 200px; /* Enforce min image size */
}

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

.page-register__cta-button--large {
    padding: 20px 50px;
    font-size: 22px;
}

/* FAQ Section */
.page-register__faq-section {
    padding: 60px 0;
    background: #f9f9f9; /* Slightly off-white background for contrast */
}

/* FAQ容器样式 */
.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 5px;
  overflow: hidden;
  box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

/* 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 15px;
  opacity: 0;
  color: var(--text-color-dark);
}

/* FAQ展开状态 - 🚨 Sử dụng!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 đảm bảo ưu tiên, giá trị đủ lớn để chứa mọi nội dung */
  padding: 20px 15px !important;
  opacity: 1;
  background: var(--background-light); /* Ensure light background for dark text */
  border-radius: 0 0 5px 5px;
}

/* Vấn đề kiểu dáng */
.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  background: var(--background-light);
  border: 1px solid #e0e0e0;
  border-radius: 5px;
  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;
}

/* Vấn đề tiêu đề kiểu dáng */
.page-register__faq-question h3 {
  margin: 0;
  padding: 0;
  flex: 1;
  font-size: 18px; /* Adjusted for better readability */
  font-weight: 600;
  line-height: 1.5;
  pointer-events: none; /* Ngăn chặn thẻ h3 chặn sự kiện click */
  color: var(--primary-color); /* Use primary color for questions */
}

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

.page-register__faq-item.active .page-register__faq-toggle {
  color: var(--secondary-color); /* Change color when active */
  transform: rotate(45deg); /* Example: rotate to become an 'x' or just change to '-' in JS */
}

/* CTA Games Section */
.page-register__cta-games-section {
    background: var(--background-dark);
    color: var(--text-color-light);
    padding: 60px 0;
    text-align: center;
}

.page-register__cta-games-section .page-register__section-title {
    color: var(--text-color-light);
}

.page-register__cta-games-section .page-register__section-description {
    color: var(--text-color-light);
}

.page-register__cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 40px;
    flex-wrap: wrap; /* Allow wrapping on smaller screens */
}

.page-register__cta-button--play {
    background: var(--secondary-color);
    color: var(--font-color-register-login);
    padding: 15px 30px;
    font-size: 18px;
}

.page-register__cta-button--download {
    background: var(--primary-color);
    color: var(--text-color-light);
    padding: 15px 30px;
    font-size: 18px;
}

.page-register__cta-button--play:hover {
    background: #B00707;
}

.page-register__cta-button--download:hover {
    background: #016632;
}

/* General image styling */
.page-register img {
    max-width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .page-register__main-title {
        font-size: 40px;
    }
    .page-register__hero-description {
        font-size: 18px;
    }
    .page-register__section-title {
        font-size: 30px;
    }
    .page-register__section-description {
        font-size: 16px;
    }
    .page-register__form {
        padding: 30px;
    }
    .page-register__benefits-grid,
    .page-register__steps-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .page-register {
        font-size: 16px;
        line-height: 1.6;
    }

    .page-register__hero-section {
        padding-top: var(--header-offset, 120px) !important; /* Mobile fixed header offset */
        padding-bottom: 40px;
        min-height: 400px;
    }

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

    .page-register__main-title {
        font-size: 32px;
        margin-bottom: 15px;
    }
    .page-register__hero-description {
        font-size: 16px;
        margin-bottom: 30px;
    }
    .page-register__cta-button {
        padding: 12px 25px;
        font-size: 18px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-register__cta-button--large {
        padding: 15px 30px;
        font-size: 20px;
    }

    .page-register__container {
        padding: 20px 15px;
    }

    .page-register__section-title {
        font-size: 26px;
        margin-bottom: 15px;
    }
    .page-register__section-description {
        font-size: 15px;
        margin-bottom: 30px;
    }

    .page-register__form {
        padding: 25px;
    }
    .page-register__form-group {
        margin-bottom: 20px;
    }
    .page-register__form-label {
        font-size: 15px;
    }
    .page-register__form-input {
        padding: 12px;
        font-size: 15px;
    }
    .page-register__submit-button {
        padding: 15px;
        font-size: 18px;
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }
    .page-register__login-prompt {
        font-size: 15px;
    }

    .page-register__benefits-grid,
    .page-register__steps-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    .page-register__benefit-card,
    .page-register__step-item {
        padding: 25px;
    }
    .page-register__benefit-title,
    .page-register__step-title {
        font-size: 20px;
    }
    .page-register__benefit-text,
    .page-register__step-text {
        font-size: 15px;
    }

    /* FAQ Mobile */
    .page-register__faq-question {
      padding: 15px;
      flex-wrap: wrap;
    }
    
    .page-register__faq-question h3 {
      font-size: 16px;
      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;
    }

    .page-register__cta-buttons {
        flex-direction: column;
        gap: 15px;
    }
    .page-register__cta-button--play,
    .page-register__cta-button--download {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        white-space: normal !important;
        word-wrap: break-word !important;
    }

    /* Enforce all images responsive */
    .page-register img {
        max-width: 100% !important;
        width: 100% !important;
        height: auto !important;
    }
    .page-register__section,
    .page-register__card,
    .page-register__container,
    .page-register__form,
    .page-register__benefits-grid,
    .page-register__steps-grid,
    .page-register__cta-buttons {
        max-width: 100% !important;
        width: 100% !important;
        box-sizing: border-box !important;
        padding-left: 15px;
        padding-right: 15px;
    }
    /* Specific override for .page-register__hero-section padding to ensure it's not double */
    .page-register__hero-section {
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
}

/* Ensure images within cards/steps respect min dimensions and are not small icons */
.page-register__benefit-image,
.page-register__step-image {
    min-width: 200px;
    min-height: 200px;
}