.page-khuyen-mai {
  font-family: Arial, sans-serif;
  color: #333333; /* Default text color for light body background */
  background-color: #ffffff; /* Explicitly set for clarity, though shared.css might handle body */
  line-height: 1.6;
}

.page-khuyen-mai__section {
  padding: 60px 0;
  text-align: center;
}

.page-khuyen-mai__section-title {
  font-size: 36px;
  font-weight: 700;
  color: #26A9E0; /* Brand color for titles */
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-khuyen-mai__section-description {
  font-size: 18px;
  color: #555555;
  max-width: 800px;
  margin: 0 auto 40px;
}

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

/* HERO Section */
.page-khuyen-mai__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, relying on body padding-top from shared.css */
  padding-bottom: 40px;
  background-color: #f0f8ff; /* Light background for hero */
}

.page-khuyen-mai__hero-image-wrapper {
  position: relative;
  width: 100%;
  height: 0;
  padding-bottom: 56.25%; /* 16:9 Aspect Ratio (1080/1920 = 0.5625) */
  overflow: hidden;
}

.page-khuyen-mai__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover; /* Cover the area, cropping if necessary */
}

.page-khuyen-mai__hero-content {
  max-width: 900px;
  margin: 40px auto 0;
  padding: 0 15px;
  text-align: center;
}

.page-khuyen-mai__main-title {
  font-size: clamp(32px, 4vw, 48px); /* Responsive font size for H1 */
  font-weight: 800;
  color: #26A9E0;
  margin-bottom: 20px;
  line-height: 1.2;
}

.page-khuyen-mai__intro-description {
  font-size: 20px;
  color: #555555;
  margin-bottom: 30px;
  line-height: 1.6;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-top: 30px;
  width: 100%; /* Ensure container takes full width */
  max-width: 100%;
  box-sizing: border-box;
  overflow: hidden;
}

.page-khuyen-mai__btn-primary,
.page-khuyen-mai__btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 15px 30px;
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  border-radius: 8px;
  transition: all 0.3s ease;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-khuyen-mai__btn-primary {
  background-color: #26A9E0;
  color: #FFFFFF;
  border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-primary:hover {
  background-color: #1a7bb7;
  border-color: #1a7bb7;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(38, 169, 224, 0.3);
}

.page-khuyen-mai__btn-secondary {
  background-color: #FFFFFF;
  color: #26A9E0;
  border: 2px solid #26A9E0;
}

.page-khuyen-mai__btn-secondary:hover {
  background-color: #e0f2ff;
  color: #1a7bb7;
  border-color: #1a7bb7;
  transform: translateY(-2px);
  box-shadow: 0 4px 10px rgba(38, 169, 224, 0.1);
}

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

.page-khuyen-mai__promotion-card {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  text-align: left;
}

.page-khuyen-mai__promotion-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__card-image-wrapper {
  width: 100%;
  height: 200px; /* Fixed height for consistency */
  overflow: hidden;
}

.page-khuyen-mai__card-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__card-content {
  padding: 25px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__card-title {
  font-size: 22px;
  font-weight: 700;
  margin-top: 0;
  margin-bottom: 15px;
  line-height: 1.3;
}

.page-khuyen-mai__card-title a {
  color: #26A9E0;
  text-decoration: none;
  transition: color 0.3s ease;
}

.page-khuyen-mai__card-title a:hover {
  color: #1a7bb7;
  text-decoration: underline;
}

.page-khuyen-mai__card-text {
  font-size: 16px;
  color: #666666;
  margin-bottom: 20px;
  flex-grow: 1;
}

.page-khuyen-mai__card-button {
  display: inline-block;
  padding: 10px 20px;
  background-color: #EA7C07; /* Login color for action */
  color: #FFFFFF;
  text-decoration: none;
  border-radius: 5px;
  font-weight: 600;
  font-size: 16px;
  transition: background-color 0.3s ease;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
  text-align: center;
}

.page-khuyen-mai__card-button:hover {
  background-color: #d16e00;
}

/* How-to-claim section */
.page-khuyen-mai__how-to-claim {
  background-color: #26A9E0; /* Brand color dark background */
  color: #ffffff; /* White text for contrast */
}

.page-khuyen-mai__how-to-claim .page-khuyen-mai__section-title,
.page-khuyen-mai__how-to-claim .page-khuyen-mai__section-description {
  color: #ffffff;
}

.page-khuyen-mai__steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-khuyen-mai__step-item {
  background: rgba(255, 255, 255, 0.1);
  border-radius: 10px;
  padding: 30px 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.page-khuyen-mai__step-icon-wrapper {
  width: 100px;
  height: 100px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: rgba(255, 255, 255, 0.2);
  border-radius: 50%;
}

.page-khuyen-mai__step-icon {
  width: 60px;
  height: 60px;
  object-fit: contain;
  /* Removed filter to comply with strict filter restriction */
}

.page-khuyen-mai__step-title {
  font-size: 20px;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 10px;
}

.page-khuyen-mai__step-text {
  font-size: 16px;
  color: #e0f2ff;
}

.page-khuyen-mai__cta-buttons--center {
  margin-top: 50px;
}