/* Base styles for the Khuyến Mãi page */
.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-main, #F2FFF6); /* Default text color for dark body background */
  background-color: var(--background-color, #08160F); /* Default background color */
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

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

.page-khuyen-mai__dark-bg {
  background-color: var(--background-color, #08160F);
  color: var(--text-main, #F2FFF6);
}

.page-khuyen-mai__light-bg {
  background-color: var(--card-bg, #11271B); /* Using Card BG as a lighter contrast for sections */
  color: var(--text-main, #F2FFF6);
}

.page-khuyen-mai__section-title {
  font-size: 36px;
  font-weight: 700;
  margin-bottom: 30px;
  color: var(--text-main, #F2FFF6);
}

.page-khuyen-mai__text-block {
  font-size: 18px;
  margin-bottom: 30px;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
  color: var(--text-secondary, #A7D9B8);
}

/* Hero Section */
.page-khuyen-mai__hero-section {
  position: relative;
  padding: 10px 0 80px; /* Small top padding, relying on body padding for header offset */
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 600px;
}

.page-khuyen-mai__hero-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.page-khuyen-mai__hero-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: brightness(0.5);
}

.page-khuyen-mai__hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 20px;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2.5rem, 5vw, 4.5rem); /* Responsive font size for H1 */
  font-weight: 800;
  color: var(--text-main, #F2FFF6);
  margin-bottom: 20px;
  line-height: 1.2;
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
}

.page-khuyen-mai__hero-description {
  font-size: 20px;
  color: var(--text-secondary, #A7D9B8);
  margin-bottom: 40px;
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__cta-buttons {
  display: flex;
  justify-content: center;
  gap: 20px;
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
}

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

.page-khuyen-mai__btn-primary {
  background: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
  color: #ffffff;
  border: none;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
}

.page-khuyen-mai__btn-primary:hover {
  opacity: 0.9;
  transform: translateY(-2px);
}

.page-khuyen-mai__btn-secondary {
  background: transparent;
  color: var(--text-main, #F2FFF6);
  border: 2px solid var(--border-color, #2E7A4E);
}

.page-khuyen-mai__btn-secondary:hover {
  background: rgba(46, 122, 78, 0.2); /* Slightly lighter border color for hover */
  transform: translateY(-2px);
}

/* Why Choose Section */
.page-khuyen-mai__feature-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  text-align: left;
}

.page-khuyen-mai__feature-item {
  background-color: var(--card-bg, #11271B);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color, #2E7A4E);
}

.page-khuyen-mai__feature-title {
  font-size: 24px;
  color: var(--text-main, #F2FFF6);
  margin-bottom: 15px;
  font-weight: 600;
}

.page-khuyen-mai__feature-item p {
  font-size: 16px;
  color: var(--text-secondary, #A7D9B8);
}

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

.page-khuyen-mai__promo-card {
  background-color: var(--card-bg, #11271B);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: left;
  border: 1px solid var(--border-color, #2E7A4E);
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-card img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__card-title {
  font-size: 22px;
  color: var(--text-main, #F2FFF6);
  padding: 20px 20px 10px;
  margin: 0;
  font-weight: 600;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__card-description {
  font-size: 16px;
  color: var(--text-secondary, #A7D9B8);
  padding: 0 20px 20px;
  flex-grow: 1;
}

.page-khuyen-mai__promo-card .page-khuyen-mai__card-btn {
  margin: 0 20px 20px;
  width: calc(100% - 40px);
}

/* How to Claim Section */
.page-khuyen-mai__steps-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  text-align: left;
}

.page-khuyen-mai__step-item {
  background-color: var(--card-bg, #11271B);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  border: 1px solid var(--border-color, #2E7A4E);
}

.page-khuyen-mai__step-title {
  font-size: 22px;
  color: var(--text-main, #F2FFF6);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-khuyen-mai__step-item p {
  font-size: 16px;
  color: var(--text-secondary, #A7D9B8);
}

.page-khuyen-mai__step-item a {
  color: var(--glow, #57E38D);
  text-decoration: none;
}

.page-khuyen-mai__step-item a:hover {
  text-decoration: underline;
}

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

/* Terms and Conditions Section */
.page-khuyen-mai__terms-list {
  list-style: none;
  padding: 0;
  margin-top: 40px;
  text-align: left;
  max-width: 900px;
  margin-left: auto;
  margin-right: auto;
}

.page-khuyen-mai__terms-item {
  background-color: var(--card-bg, #11271B);
  padding: 25px;
  border-radius: 8px;
  margin-bottom: 20px;
  border: 1px solid var(--border-color, #2E7A4E);
}

.page-khuyen-mai__terms-subtitle {
  font-size: 20px;
  color: var(--text-main, #F2FFF6);
  margin-bottom: 10px;
  font-weight: 600;
}

.page-khuyen-mai__terms-item p {
  font-size: 16px;
  color: var(--text-secondary, #A7D9B8);
}

.page-khuyen-mai__read-more-terms {
  margin-top: 40px;
  font-size: 18px;
}

.page-khuyen-mai__read-more-terms a {
  color: var(--glow, #57E38D);
  text-decoration: none;
  font-weight: 600;
}

.page-khuyen-mai__read-more-terms a:hover {
  text-decoration: underline;
}

/* Latest Promotions Section (Article Cards) */
.page-khuyen-mai__promo-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 40px;
}

.page-khuyen-mai__promo-card-item {
  background-color: var(--card-bg, #11271B);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  text-align: left;
  border: 1px solid var(--border-color, #2E7A4E);
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-card-item img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
}

.page-khuyen-mai__promo-card-item .page-khuyen-mai__card-content {
  padding: 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.page-khuyen-mai__promo-card-item .page-khuyen-mai__card-title-link {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 10px;
  line-height: 1.4;
}

.page-khuyen-mai__promo-card-item .page-khuyen-mai__card-title-link a {
  color: var(--text-main, #F2FFF6);
  text-decoration: none;
}