:root {
  --main-color: #11A84E;
  --secondary-color: #22C768;
  --button-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  --card-bg: #11271B;
  --page-bg: #08160F;
  --text-main: #F2FFF6;
  --text-secondary: #A7D9B8;
  --border-color: #2E7A4E;
  --glow-color: #57E38D;
  --gold-color: #F2C14E;
  --divider-color: #1E3A2A;
  --deep-green: #0A4B2C;
}

/* body đã có padding-top: var(--header-offset) từ shared.css */
/* Không thêm padding-top vào .page-register hoặc các section đầu tiên */

.page-register {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  color: var(--text-main);
  background-color: var(--page-bg);
  overflow-x: hidden;
}

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

.page-register__section-title {
  font-size: clamp(2em, 4vw, 3em);
  font-weight: 700;
  text-align: center;
  margin-bottom: 30px;
  color: var(--text-main);
  text-shadow: 0 0 10px rgba(87, 227, 141, 0.5);
}

.page-register__description {
  text-align: center;
  margin-bottom: 40px;
  color: var(--text-secondary);
  font-size: 1.1em;
}

.page-register__cta-button {
  display: block;
  width: fit-content;
  margin: 0 auto;
  padding: 15px 30px;
  background: var(--button-gradient);
  color: var(--text-main);
  text-decoration: none;
  border-radius: 8px;
  font-weight: 700;
  font-size: 1.1em;
  transition: background 0.3s ease, transform 0.3s ease;
  box-shadow: 0 4px 15px rgba(42, 209, 111, 0.4);
  border: none;
  cursor: pointer;
  box-sizing: border-box;
}

.page-register__cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(42, 209, 111, 0.6);
}

.page-register__cta-button--secondary {
  background: var(--deep-green);
  border: 1px solid var(--main-color);
  box-shadow: none;
}

.page-register__cta-button--secondary:hover {
  background: var(--main-color);
  transform: translateY(-2px);
  box-shadow: 0 2px 8px rgba(17, 168, 78, 0.4);
}

.page-register__cta-button--center {
  margin-top: 30px;
  margin-bottom: 30px;
}

/* Hero Section */
.page-register__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 0;
  overflow: hidden;
  min-height: 500px;
  background-color: var(--deep-green);
}

.page-register__hero-image-wrapper {
  width: 100%;
  max-height: 700px;
  overflow: hidden;
}

.page-register__hero-image-wrapper img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  filter: brightness(0.7);
}

.page-register__hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 40px 20px;
  max-width: 900px;
  box-sizing: border-box;
}

.page-register__main-title {
  font-size: clamp(2.5em, 5vw, 4em);
  font-weight: 800;
  color: var(--text-main);
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 0 15px rgba(87, 227, 141, 0.7);
}

.page-register__hero-description {
  font-size: 1.2em;
  color: var(--text-secondary);
  margin-bottom: 30px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

/* Benefits Section */
.page-register__dark-section {
  background-color: var(--page-bg);
  color: var(--text-main);
  padding: 60px 0;
}

.page-register__benefits-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-register__benefit-card {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
}

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

.page-register__benefit-text {
  color: var(--text-secondary);
}

.page-register__benefit-image {
  display: block;
  margin: 50px auto 0 auto;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.4);
}

/* Steps Section */
.page-register__light-bg {
  background-color: #ffffff;
  color: #333333;
  padding: 60px 0;
}

.page-register__light-bg .page-register__section-title {
  color: var(--deep-green);
  text-shadow: none;
}

.page-register__light-bg .page-register__description {
  color: #555555;
}

.page-register__steps-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 30px;
  position: relative;
}

.page-register__steps-list::before {
  content: '';
  position: absolute;
  left: 35px;
  top: 0;
  bottom: 0;
  width: 2px;
  background-color: var(--main-color);
  z-index: 0;
}

.page-register__step-item {
  display: flex;
  align-items: flex-start;
  position: relative;
  padding-left: 80px;
}

.page-register__step-number {
  position: absolute;
  left: 0;
  top: 0;
  width: 70px;
  height: 70px;
  background: var(--button-gradient);
  color: var(--text-main);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2em;
  font-weight: 700;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
  z-index: 1;
}

.page-register__step-content {
  background-color: #f9f9f9;
  padding: 25px;
  border-radius: 10px;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
  border-left: 5px solid var(--main-color);
  flex-grow: 1;
}

.page-register__step-title {
  font-size: 1.4em;
  color: var(--deep-green);
  margin-bottom: 10px;
}

.page-register__step-text {
  color: #555555;
}

.page-register__steps-image {
  display: block;
  margin: 50px auto 0 auto;
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
}

/* Form Section */
.page-register__form-section {
  padding: 60px 0;
  background-color: var(--page-bg);
  color: var(--text-main);
}

.page-register__registration-form {
  max-width: 600px;
  margin: 40px auto 0 auto;
  background-color: var(--card-bg);
  padding: 40px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
}

.page-register__form-group {
  margin-bottom: 20px;
}

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

.page-register__form-input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: 5px;
  background-color: var(--deep-green);
  color: var(--text-main);
  font-size: 1em;
  box-sizing: border-box;
}

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

.page-register__form-checkbox {
  display: flex;
  align-items: center;
  margin-top: 25px;
}

.page-register__checkbox-input {
  margin-right: 10px;
  width: 18px;
  height: 18px;
  accent-color: var(--main-color);
}

.page-register__checkbox-label {
  font-size: 0.95em;
  color: var(--text-secondary);
}

.page-register__terms-link {
  color: var(--glow-color);
  text-decoration: none;
}

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

.page-register__form-submit-button {
  width: 100%;
  margin-top: 30px;
}

.page-register__form-note {
  text-align: center;
  margin-top: 30px;
  color: var(--text-secondary);
  font-size: 0.9em;
}

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

.page-register__bonus-card {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-register__bonus-title {
  font-size: 1.6em;
  color: var(--glow-color);
  margin-bottom: 15px;
}

.page-register__bonus-text {
  color: var(--text-secondary);
  margin-bottom: 25px;
  flex-grow: 1;
}

.page-register__bonus-callout {
  text-align: center;
  margin-top: 40px;
  font-size: 1.1em;
  font-weight: 600;
  color: var(--main-color);
}

/* Games Section */
.page-register__game-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-register__game-card {
  background-color: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--border-color);
  text-align: center;
  display: flex;
  flex-direction: column;
}

.page-register__game-card img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
  filter: brightness(0.8);
}

.page-register__game-title {
  font-size: 1.4em;
  color: var(--text-main);
  margin: 15px 10px 5px 10px;
}

.page-register__game-title a {
  color: inherit;
  text-decoration: none;
}

.page-register__game-title a:hover {
  color: var(--glow-color);
  text-decoration: underline;
}

.page-register__game-text {
  color: var(--text-secondary);
  padding: 0 15px 20px 15px;
  flex-grow: 1;
}

/* FAQ Section */
.page-register__faq-list {
  margin-top: 40px;
}

.page-register__faq-item {
  background-color: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  margin-bottom: 15px;
  overflow: hidden;
  color: var(--text-main);
}

.page-register__faq-item.active .page-register__faq-answer {
  max-height: 2000px; /* Large enough to show all content */
  transition: max-height 0.5s ease-out;
}

.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 25px;
  font-size: 1.2em;
  font-weight: 600;
  color: var(--text-main);
  cursor: pointer;
  background-color: var(--deep-green);
  border-bottom: 1px solid var(--divider-color);
  list-style: none; /* For details/summary */
}

.page-register__faq-question::-webkit-details-marker {
  display: none; /* For details/summary */
}

.page-register__faq-qtext {
  flex-grow: 1;
}

.page-register__faq-toggle {
  font-size: 1.5em;
  font-weight: 700;
  margin-left: 15px;
  color: var(--glow-color);
}

.page-register__faq-answer {
  padding: 0 25px 20px 25px;
  color: var(--text-secondary);
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.5s ease-in;
}

.page-register__faq-answer p {
  margin: 15px 0 0 0;
  color: var(--text-secondary);
}

.page-register__faq-item[open] .page-register__faq-question {
  border-bottom: 1px solid var(--divider-color);
}

.page-register__faq-item[open] .page-register__faq-answer {
  max-height: 2000px; /* Ensure content is visible */
  transition: max-height 0.5s ease-out;
}

/* Final CTA Section */
.page-register__final-cta {
  padding: 80px 0;
  text-align: center;
}

/* Responsive adjustments */
@media (max-width: 1024px) {
  .page-register__hero-content {
    padding: 30px 15px;
  }

  .page-register__main-title {
    font-size: clamp(2em, 4.5vw, 3.5em);
  }

  .page-register__hero-description {
    font-size: 1.1em;
  }

  .page-register__benefits-grid, .page-register__bonus-grid, .page-register__game-cards-grid {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-register__container {
    padding: 0 15px !important;
  }

  .page-register__section-title {
    font-size: clamp(1.8em, 6vw, 2.5em);
    margin-bottom: 25px;
  }

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

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

  .page-register__hero-section {
    min-height: 400px;
    padding-top: 10px !important; /* body đã có padding-top */
  }

  .page-register__hero-image-wrapper img {
    max-height: 500px;
  }

  .page-register__steps-list::before {
    left: 25px;
  }

  .page-register__step-item {
    padding-left: 60px;
  }

  .page-register__step-number {
    width: 50px;
    height: 50px;
    font-size: 1.5em;
  }

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

  .page-register__form-section, .page-register__bonus-section, .page-register__games-section, .page-register__faq-section, .page-register__final-cta {
    padding: 40px 0;
  }

  .page-register__registration-form {
    padding: 30px;
  }

  .page-register__form-input {
    padding: 10px 12px;
  }

  /* Responsive for images */
  .page-register img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
    display: block !important;
    box-sizing: border-box !important;
  }
  
  .page-register__benefit-image, .page-register__steps-image {
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  /* Containers for images/buttons */
  .page-register__section,
  .page-register__card,
  .page-register__container,
  .page-register__hero-image-wrapper,
  .page-register__benefits-grid,
  .page-register__bonus-grid,
  .page-register__game-cards-grid {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    overflow: hidden !important;
  }
  
  .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-wrap: wrap !important;
    gap: 10px;
  }

  .page-register__cta-buttons {
    display: flex;
    flex-direction: column;
  }

  .page-register__faq-question {
    padding: 15px 20px;
    font-size: 1.1em;
  }

  .page-register__faq-answer {
    padding: 0 20px 15px 20px;
  }
}