.page-ng-k-tri-nghim {
  font-family: 'Arial', sans-serif;
  color: #333;
  line-height: 1.6;
  background-color: #f8f9fa;
}

.page-ng-k-tri-nghim__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 15px;
}

.page-ng-k-tri-nghim__hero {
  position: relative;
  background-color: #007BFF;
  color: #fff;
  padding: 100px 0;
  text-align: center;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.page-ng-k-tri-nghim__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.3;
  z-index: 1;
}

.page-ng-k-tri-nghim__hero .page-ng-k-tri-nghim__container {
  position: relative;
  z-index: 2;
}

.page-ng-k-tri-nghim__title {
  font-size: 3.5em;
  margin-bottom: 20px;
  font-weight: bold;
  color: #fff;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-ng-k-tri-nghim__subtitle {
  font-size: 1.5em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: #e0e0e0;
}

.page-ng-k-tri-nghim__btn {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 50px;
  text-decoration: none;
  font-weight: bold;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.page-ng-k-tri-nghim__btn--primary {
  background-color: #FFC107;
  color: #000;
  box-shadow: 0 4px 15px rgba(255, 193, 7, 0.4);
}

.page-ng-k-tri-nghim__btn--primary:hover {
  background-color: #e0a800;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(255, 193, 7, 0.6);
}

.page-ng-k-tri-nghim__btn--secondary {
  background-color: #007BFF;
  color: #fff;
  box-shadow: 0 4px 15px rgba(0, 123, 255, 0.4);
}

.page-ng-k-tri-nghim__btn--secondary:hover {
  background-color: #0056b3;
  transform: translateY(-3px);
  box-shadow: 0 6px 20px rgba(0, 123, 255, 0.6);
}

.page-ng-k-tri-nghim__btn--outline {
  background-color: transparent;
  color: #FFC107;
  border: 2px solid #FFC107;
  margin-left: 20px;
}

.page-ng-k-tri-nghim__btn--outline:hover {
  background-color: #FFC107;
  color: #000;
}

.page-ng-k-tri-nghim__section {
  padding: 80px 0;
}

.page-ng-k-tri-nghim__section:nth-of-type(even) {
  background-color: #e9ecef;
}

.page-ng-k-tri-nghim__section-title {
  font-size: 2.5em;
  color: #007BFF;
  text-align: center;
  margin-bottom: 40px;
  position: relative;
}

.page-ng-k-tri-nghim__section-title::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  width: 80px;
  height: 4px;
  background-color: #FFC107;
  border-radius: 2px;
}

.page-ng-k-tri-nghim__text {
  font-size: 1.1em;
  text-align: center;
  max-width: 900px;
  margin: 0 auto 50px auto;
  color: #555;
}

.page-ng-k-tri-nghim__inline-link {
  color: #007BFF;
  text-decoration: none;
  font-weight: bold;
}

.page-ng-k-tri-nghim__inline-link:hover {
  text-decoration: underline;
}

.page-ng-k-tri-nghim__why-choose .page-ng-k-tri-nghim__features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-ng-k-tri-nghim__feature-item {
  background-color: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}

.page-ng-k-tri-nghim__feature-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.15);
}

.page-ng-k-tri-nghim__feature-icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  object-fit: contain;
}

.page-ng-k-tri-nghim__feature-title {
  font-size: 1.5em;
  color: #007BFF;
  margin-bottom: 15px;
}

.page-ng-k-tri-nghim__feature-text {
  color: #666;
  font-size: 1em;
}

.page-ng-k-tri-nghim__registration-guide .page-ng-k-tri-nghim__steps {
  list-style: none;
  padding: 0;
  margin-top: 50px;
}

.page-ng-k-tri-nghim__step-item {
  background-color: #fff;
  padding: 40px;
  margin-bottom: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-ng-k-tri-nghim__step-title {
  font-size: 2em;
  color: #007BFF;
  margin-bottom: 20px;
}

.page-ng-k-tri-nghim__step-description {
  font-size: 1.1em;
  color: #555;
  max-width: 800px;
  margin-bottom: 30px;
}

.page-ng-k-tri-nghim__info-list {
  list-style: none;
  padding: 0;
  margin: 20px 0;
  text-align: left;
  width: 100%;
  max-width: 600px;
}

.page-ng-k-tri-nghim__info-list li {
  background-color: #f0f8ff;
  border-left: 4px solid #007BFF;
  padding: 10px 15px;
  margin-bottom: 10px;
  border-radius: 4px;
  color: #333;
}

.page-ng-k-tri-nghim__info-list li strong {
  color: #0056b3;
}

.page-ng-k-tri-nghim__btn--step {
  background-color: #FFC107;
  color: #000;
  padding: 12px 25px;
  font-size: 1.1em;
  border-radius: 30px;
  margin-top: 20px;
}

.page-ng-k-tri-nghim__btn--step:hover {
  background-color: #e0a800;
}

.page-ng-k-tri-nghim__step-image {
  max-width: 100%;
  height: auto;
  border-radius: 8px;
  margin-top: 30px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-ng-k-tri-nghim__notes-list {
  list-style: none;
  padding: 0;
  max-width: 900px;
  margin: 50px auto 0 auto;
}

.page-ng-k-tri-nghim__notes-list li {
  background-color: #fff;
  padding: 20px 30px;
  margin-bottom: 15px;
  border-radius: 8px;
  box-shadow: 0 3px 10px rgba(0, 0, 0, 0.05);
  border-left: 5px solid #FFC107;
  font-size: 1.1em;
  color: #444;
}

.page-ng-k-tri-nghim__notes-list li strong {
  color: #007BFF;
}

.page-ng-k-tri-nghim__post-reg-list {
  list-style: none;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-ng-k-tri-nghim__post-reg-list li {
  background-color: #fff;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.08);
  text-align: center;
}

.page-ng-k-tri-nghim__post-reg-title {
  font-size: 1.6em;
  color: #007BFF;
  margin-bottom: 15px;
}

.page-ng-k-tri-nghim__post-reg-description {
  color: #666;
  font-size: 1em;
  margin-bottom: 25px;
}

.page-ng-k-tri-nghim__btn--small {
  padding: 10px 20px;
  font-size: 0.9em;
  background-color: #FFC107;
  color: #000;
  border-radius: 25px;
}

.page-ng-k-tri-nghim__btn--small:hover {
  background-color: #e0a800;
}

.page-ng-k-tri-nghim__faq .page-ng-k-tri-nghim__accordion {
  max-width: 900px;
  margin: 50px auto 0 auto;
}

.page-ng-k-tri-nghim__accordion-item {
  background-color: #fff;
  border: 1px solid #ddd;
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-ng-k-tri-nghim__accordion-header {
  width: 100%;
  background-color: #007BFF;
  color: #fff;
  padding: 20px 25px;
  text-align: left;
  font-size: 1.2em;
  font-weight: bold;
  border: none;
  cursor: pointer;
  transition: background-color 0.3s ease;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-ng-k-tri-nghim__accordion-header:hover {
  background-color: #0056b3;
}

.page-ng-k-tri-nghim__accordion-header::after {
  content: '+';
  font-size: 1.5em;
  transition: transform 0.3s ease;
}

.page-ng-k-tri-nghim__accordion-header.active::after {
  content: '-';
  transform: rotate(180deg);
}

.page-ng-k-tri-nghim__accordion-content {
  padding: 0 25px;
  background-color: #fefefe;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease-out, padding 0.4s ease-out;
}

.page-ng-k-tri-nghim__accordion-content p {
  margin: 15px 0;
  color: #555;
}

.page-ng-k-tri-nghim__accordion-content.active {
  max-height: 200px; /* Adjust as needed */
  padding: 20px 25px;
}

.page-ng-k-tri-nghim__cta {
  position: relative;
  background-color: #333;
  color: #fff;
  padding: 80px 0;
  text-align: center;
  overflow: hidden;
}

.page-ng-k-tri-nghim__cta-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  z-index: 1;
}

.page-ng-k-tri-nghim__cta .page-ng-k-tri-nghim__container {
  position: relative;
  z-index: 2;
}

.page-ng-k-tri-nghim__cta-title {
  font-size: 3em;
  margin-bottom: 20px;
  color: #FFC107;
}

.page-ng-k-tri-nghim__cta-text {
  font-size: 1.3em;
  margin-bottom: 40px;
  color: #e0e0e0;
}

.page-ng-k-tri-nghim__copyright {
  text-align: center;
  padding: 30px 0;
  font-size: 0.9em;
  color: #777;
  background-color: #f1f1f1;
}

/* Responsive Design */
@media (max-width: 992px) {
  .page-ng-k-tri-nghim__title {
    font-size: 2.8em;
  }
  .page-ng-k-tri-nghim__subtitle {
    font-size: 1.3em;
  }
  .page-ng-k-tri-nghim__section-title {
    font-size: 2em;
  }
  .page-ng-k-tri-nghim__feature-item {
    padding: 25px;
  }
  .page-ng-k-tri-nghim__step-item {
    padding: 30px;
  }
  .page-ng-k-tri-nghim__cta-title {
    font-size: 2.5em;
  }
}

@media (max-width: 768px) {
  .page-ng-k-tri-nghim__hero {
    padding: 80px 0;
  }
  .page-ng-k-tri-nghim__title {
    font-size: 2.2em;
  }
  .page-ng-k-tri-nghim__subtitle {
    font-size: 1.1em;
  }
  .page-ng-k-tri-nghim__btn {
    padding: 12px 25px;
    font-size: 0.9em;
  }
  .page-ng-k-tri-nghim__btn--outline {
    margin-left: 10px;
    margin-top: 15px;
  }
  .page-ng-k-tri-nghim__features-grid, .page-ng-k-tri-nghim__post-reg-list {
    grid-template-columns: 1fr;
  }
  .page-ng-k-tri-nghim__step-title {
    font-size: 1.8em;
  }
  .page-ng-k-tri-nghim__accordion-header {
    font-size: 1.1em;
    padding: 15px 20px;
  }
  .page-ng-k-tri-nghim__cta-title {
    font-size: 2em;
  }
  .page-ng-k-tri-nghim__cta-text {
    font-size: 1.1em;
  }
}

@media (max-width: 576px) {
  .page-ng-k-tri-nghim__hero {
    padding: 60px 0;
  }
  .page-ng-k-tri-nghim__title {
    font-size: 1.8em;
  }
  .page-ng-k-tri-nghim__subtitle {
    font-size: 1em;
  }
  .page-ng-k-tri-nghim__section {
    padding: 50px 0;
  }
  .page-ng-k-tri-nghim__section-title {
    font-size: 1.8em;
  }
  .page-ng-k-tri-nghim__text {
    font-size: 0.95em;
  }
  .page-ng-k-tri-nghim__btn {
    display: block;
    margin-left: auto;
    margin-right: auto;
    width: fit-content;
  }
  .page-ng-k-tri-nghim__btn--outline {
    margin-left: auto;
    margin-right: auto;
    margin-top: 15px;
  }
}