.page-register {
  font-family: 'Arial', sans-serif;
  color: var(--text-main-color); /* Sử dụng màu chữ chính */
  background-color: var(--bg-color); /* Sử dụng màu nền chính */
  line-height: 1.6;
}

.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: 10px; /* Nhỏ hơn để body padding-top xử lý phần header */
  background: var(--bg-color);
  color: var(--text-main-color);
  overflow: hidden;
}

.page-register__hero-container {
  position: relative;
  max-width: 1200px;
  width: 100%;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 1;
}

.page-register__hero-image {
  width: 100%;
  margin-bottom: 30px;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4);
}

.page-register__hero-image img {
  width: 100%;
  height: auto;
  max-width: 100%;
  display: block;
  object-fit: cover;
  border-radius: 8px;
}

.page-register__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  width: 100%;
  max-width: 900px;
}

.page-register__main-title {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: bold;
  color: var(--text-main-color);
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.5);
}

.page-register__hero-description {
  font-size: 1.15rem;
  color: var(--text-main-color);
  margin-bottom: 30px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.page-register__cta-buttons {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
}

.page-register__cta-button {
  display: inline-block;
  padding: 15px 40px;
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #ffffff;
  text-decoration: none;
  border-radius: 8px;
  font-size: 1.1rem;
  font-weight: bold;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
  border: none;
  cursor: pointer;
}

.page-register__cta-button:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(242, 193, 78, 0.6);
  opacity: 0.9;
}

.page-register__cta-button--secondary {
  background: var(--card-bg-color);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
  box-shadow: none;
}

.page-register__cta-button--secondary:hover {
  background: var(--primary-color);
  color: #ffffff;
  box-shadow: 0 4px 15px rgba(242, 193, 78, 0.4);
}

.page-register__section {
  padding: 80px 20px;
  text-align: center;
}

.page-register__dark-bg {
  background-color: var(--bg-color);
  color: var(--text-main-color);
}

.page-register__light-bg {
  background-color: #111111; /* Sử dụng màu nền Card BG */
  color: var(--text-main-color);
}

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

.page-register__section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 25px;
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.3);
}

.page-register__section-description {
  font-size: 1.1rem;
  color: var(--text-main-color);
  margin-bottom: 50px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

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

.page-register__card {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  color: var(--text-main-color);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.page-register__card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(255, 211, 107, 0.2);
}

.page-register__card img {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 20px;
  object-fit: cover;
  width: 100%; /* Đảm bảo hình ảnh chiếm hết chiều rộng của card */
  min-height: 200px;
}

.page-register__card-title {
  font-size: 1.4rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-register__card-text {
  font-size: 1rem;
  color: var(--text-main-color);
  flex-grow: 1;
}

.page-register__steps-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
}

.page-register__step-item {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 35px;
  flex: 1 1 calc(33% - 40px);
  max-width: 380px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  text-align: left;
  position: relative;
  padding-top: 70px;
}

.page-register__step-number {
  position: absolute;
  top: -20px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(180deg, #FFD86A 0%, #DDA11D 100%);
  color: #ffffff;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  font-weight: bold;
  border: 3px solid var(--bg-color);
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.4);
}

.page-register__step-title {
  font-size: 1.5rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.page-register__step-text {
  font-size: 1rem;
  color: var(--text-main-color);
}

.page-register__form-mockup {
  padding: 40px;
  text-align: left;
  max-width: 800px;
  margin: 50px auto;
}

.page-register__form-mockup img {
  width: 100%;
  height: auto;
  border-radius: 8px;
  margin-bottom: 30px;
}

.page-register__form-mockup ul {
  list-style: none;
  padding: 0;
  margin-bottom: 30px;
}

.page-register__form-mockup li {
  font-size: 1.1rem;
  color: var(--text-main-color);
  margin-bottom: 10px;
  position: relative;
  padding-left: 25px;
}

.page-register__form-mockup li::before {
  content: '✔';
  color: var(--primary-color);
  position: absolute;
  left: 0;
  font-weight: bold;
}

.page-register__form-mockup p {
  font-size: 1rem;
  color: var(--text-main-color);
  margin-bottom: 25px;
}

.page-register__btn-link {
  display: inline-block;
  margin-top: 20px;
  color: var(--primary-color);
  text-decoration: none;
  font-weight: bold;
  transition: color 0.3s ease;
}

.page-register__btn-link:hover {
  color: var(--glow-color);
  text-decoration: underline;
}

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

.page-register__security-item {
  background-color: var(--card-bg-color);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 30px;
  text-align: left;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  color: var(--text-main-color);
}

.page-register__item-title {
  font-size: 1.3rem;
  font-weight: bold;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.page-register__item-text {
  font-size: 1rem;
  color: var(--text-main-color);
}

.page-register__faq-list {
  margin-top: 40px;
  text-align: left;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

details.page-register__faq-item {
  margin-bottom: 15px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  overflow: hidden;
  background: var(--card-bg-color);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
}

details.page-register__faq-item summary.page-register__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 25px;
  cursor: pointer;
  user-select: none;
  list-style: none;
  transition: background-color 0.3s ease;
  color: var(--text-main-color);
}

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: rgba(242, 193, 78, 0.1);
}

.page-register__faq-qtext {
  flex: 1;
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.5;
  text-align: left;
  color: var(--primary-color);
}

.page-register__faq-toggle {
  font-size: 24px;
  font-weight: bold;
  color: var(--glow-color);
  flex-shrink: 0;
  margin-left: 15px;
  width: 28px;
  text-align: center;
  transition: transform 0.3s ease;
}

details[open] .page-register__faq-toggle {
  transform: rotate(45deg);
}

details.page-register__faq-item .page-register__faq-answer {
  padding: 0 25px 25px;
  background: rgba(17, 17, 17, 0.8); /* Slightly transparent card bg */
  border-top: 1px solid var(--border-color);
  border-radius: 0 0 8px 8px;
  color: var(--text-main-color);
  font-size: 1rem;
}

.page-register__faq-answer p {
  margin: 0;
  padding-top: 15px;
}

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

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-register__hero-image {
    margin-bottom: 20px;
  }
  .page-register__main-title {
    font-size: clamp(2rem, 5vw, 2.8rem);
  }
  .page-register__hero-description {
    font-size: 1rem;
  }
  .page-register__cta-button {
    padding: 12px 30px;
    font-size: 1rem;
  }
  .page-register__step-item {
    flex: 1 1 calc(50% - 30px);
    max-width: unset;
  }
}

@media (max-width: 768px) {
  .page-register__hero-section {
    padding-top: 10px !important;
    padding-bottom: 40px;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-register__hero-image img {
    border-radius: 4px;
  }
  .page-register__main-title {
    font-size: clamp(1.8rem, 6vw, 2.5rem);
  }
  .page-register__hero-description {
    font-size: 0.95rem;
  }
  .page-register__cta-buttons {
    flex-direction: column;
    gap: 15px;
    padding: 0 15px;
  }
  .page-register__cta-button {
    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;
  }
  .page-register__section {
    padding: 50px 15px;
  }
  .page-register__section-title {
    font-size: clamp(1.6rem, 5vw, 2.2rem);
  }
  .page-register__section-description {
    font-size: 0.95rem;
  }
  .page-register__features-grid, .page-register__offers-grid, .page-register__security-points {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-register__card, .page-register__security-item, .page-register__step-item {
    padding: 25px;
    border-radius: 8px;
  }
  .page-register__card img {
    min-
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-register__step-item {
    flex: 1 1 100%;
    max-width: unset;
    padding-top: 60px;
  }
  .page-register__step-number {
    width: 50px;
    height: 50px;
    font-size: 1.8rem;
    top: -15px;
  }
  .page-register__form-mockup {
    padding: 25px;
    margin: 30px auto;
  }
  .page-register__form-mockup li {
    font-size: 1rem;
  }
  details.page-register__faq-item summary.page-register__faq-question {
    padding: 15px;
  }
  .page-register__faq-qtext {
    font-size: 1rem;
  }
  details.page-register__faq-item .page-register__faq-answer {
    padding: 0 15px 15px;
  }
  .page-register__faq-toggle {
    font-size: 20px;
  }
  .page-register__cta-container {
    padding: 0 15px;
  }
  .page-register__cta-container .page-register__cta-button {
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
  }
}

@media (max-width: 480px) {
  .page-register__main-title {
    font-size: clamp(1.6rem, 7vw, 2rem);
  }
  .page-register__section-title {
    font-size: clamp(1.4rem, 6vw, 1.8rem);
  }
}