/* style/khuyen-mai.css */

:root {
  --primary-color: #26A9E0;
  --secondary-color: #FFFFFF;
  --dark-text-color: #333333;
  --light-text-color: #FFFFFF;
  --background-color: #FFFFFF;
  --login-button-color: #EA7C07;
  --spacing-unit: 20px;
}

.page-khuyen-mai {
  font-family: 'Arial', sans-serif;
  color: var(--dark-text-color);
  background-color: var(--background-color);
  line-height: 1.6;
}

.page-khuyen-mai__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-unit);
}

/* Hero Section */
.page-khuyen-mai__hero-section {
  position: relative;
  padding-top: 10px; /* Small top padding, relies on body padding for header offset */
  width: 100%;
  overflow: hidden;
  box-sizing: border-box;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.page-khuyen-mai__hero-image-wrapper {
  width: 100%;
  max-height: 500px;
  overflow: hidden;
}

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

.page-khuyen-mai__hero-content {
  padding: calc(var(--spacing-unit) * 2);
  max-width: 900px;
  margin: 0 auto;
  background-color: var(--secondary-color);
  position: relative;
  z-index: 1;
}

.page-khuyen-mai__main-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  color: var(--primary-color);
  margin-bottom: var(--spacing-unit);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.page-khuyen-mai__hero-description {
  font-size: 1.1rem;
  margin-bottom: calc(var(--spacing-unit) * 1.5);
  color: var(--dark-text-color);
}

.page-khuyen-mai__cta-button {
  display: inline-block;
  background-color: var(--login-button-color);
  color: var(--light-text-color);
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: background-color 0.3s ease;
  border: none;
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__cta-button:hover {
  background-color: #cc6600;
}

.page-khuyen-mai__cta-button--light {
  background-color: var(--secondary-color);
  color: var(--primary-color);
  border: 2px solid var(--primary-color);
}

.page-khuyen-mai__cta-button--light:hover {
  background-color: var(--primary-color);
  color: var(--light-text-color);
}

.page-khuyen-mai__cta-button--centered {
  display: block;
  margin: calc(var(--spacing-unit) * 2) auto;
  width: fit-content;
}

/* Intro Section */
.page-khuyen-mai__intro-section {
  background-color: var(--primary-color);
  padding: calc(var(--spacing-unit) * 3) 0;
  color: var(--light-text-color);
}

.page-khuyen-mai__dark-bg {
  background-color: var(--primary-color);
  color: var(--light-text-color);
}

.page-khuyen-mai__section-title {
  font-size: 2.2rem;
  color: var(--primary-color);
  text-align: center;
  margin-bottom: calc(var(--spacing-unit) * 1.5);
  font-weight: 700;
}

.page-khuyen-mai__section-title--light {
  color: var(--light-text-color);
}

.page-khuyen-mai__text-block {
  font-size: 1.05rem;
  margin-bottom: var(--spacing-unit);
  line-height: 1.7;
  text-align: justify;
}

.page-khuyen-mai__text-block--light {
  color: var(--light-text-color);
}

/* Promotion Types Section */
.page-khuyen-mai__promotion-types-section {
  padding: calc(var(--spacing-unit) * 3) 0;
  background-color: var(--background-color);
}

.page-khuyen-mai__section-description {
  text-align: center;
  font-size: 1.1rem;
  margin-bottom: calc(var(--spacing-unit) * 2);
  color: var(--dark-text-color);
}

.page-khuyen-mai__promotion-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: calc(var(--spacing-unit) * 1.5);
}

.page-khuyen-mai__promotion-card {
  background-color: var(--secondary-color);
  border-radius: 12px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.08);
  overflow: hidden;
  text-align: center;
  padding-bottom: var(--spacing-unit);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.page-khuyen-mai__card-image {
  width: 100%;
  height: 200px;
  object-fit: cover;
  margin-bottom: var(--spacing-unit);
  display: block;
}

.page-khuyen-mai__card-title {
  font-size: 1.4rem;
  color: var(--primary-color);
  margin: 0 var(--spacing-unit) var(--spacing-unit);
  font-weight: 600;
}

.page-khuyen-mai__card-text {
  font-size: 1rem;
  color: var(--dark-text-color);
  margin: 0 var(--spacing-unit) calc(var(--spacing-unit) * 1.5);
  flex-grow: 1;
  text-align: justify;
}

.page-khuyen-mai__card-button {
  display: inline-block;
  background-color: var(--primary-color);
  color: var(--light-text-color);
  padding: 10px 20px;
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: background-color 0.3s ease;
  margin: 0 var(--spacing-unit);
  max-width: calc(100% - var(--spacing-unit) * 2);
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__card-button:hover {
  background-color: darken(var(--primary-color), 10%);
}

/* Terms Section */
.page-khuyen-mai__terms-section {
  padding: calc(var(--spacing-unit) * 3) 0;
}

.page-khuyen-mai__link-button {
  color: var(--light-text-color);
  text-decoration: underline;
  font-weight: 600;
  transition: color 0.3s ease;
}

.page-khuyen-mai__link-button:hover {
  color: var(--secondary-color);
}

.page-khuyen-mai__link-button--light {
  color: var(--light-text-color);
}

.page-khuyen-mai__link-button--light:hover {
  color: #add8e6; /* Lighter shade for hover */
}

/* How To Claim Section */
.page-khuyen-mai__how-to-claim-section {
  padding: calc(var(--spacing-unit) * 3) 0;
  background-color: var(--background-color);
}

.page-khuyen-mai__steps-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: calc(var(--spacing-unit) * 2);
}

.page-khuyen-mai__step-item {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-unit);
}

.page-khuyen-mai__step-number {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 50px;
  height: 50px;
  min-width: 50px;
  min-height: 50px;
  background-color: var(--primary-color);
  color: var(--light-text-color);
  border-radius: 50%;
  font-size: 1.8rem;
  font-weight: 700;
}

.page-khuyen-mai__step-content {
  text-align: left;
}

.page-khuyen-mai__step-title {
  font-size: 1.5rem;
  color: var(--primary-color);
  margin-top: 0;
  margin-bottom: 5px;
}

.page-khuyen-mai__step-text {
  font-size: 1rem;
  color: var(--dark-text-color);
  margin: 0;
}

.page-khuyen-mai__cta-wrapper {
  text-align: center;
}

/* FAQ Section */
.page-khuyen-mai__faq-section {
  padding: calc(var(--spacing-unit) * 3) 0;
  background-color: #f8f8f8;
}

.page-khuyen-mai__faq-list {
  margin-top: calc(var(--spacing-unit) * 2);
}

.page-khuyen-mai__faq-item {
  background-color: var(--secondary-color);
  border: 1px solid #e0e0e0;
  border-radius: 8px;
  margin-bottom: 10px;
  overflow: hidden;
}

.page-khuyen-mai__faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 15px 20px;
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  cursor: pointer;
  list-style: none;
  user-select: none;
}

.page-khuyen-mai__faq-question::-webkit-details-marker {
  display: none;
}

.page-khuyen-mai__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--primary-color);
}

.page-khuyen-mai__faq-item[open] .page-khuyen-mai__faq-toggle {
  content: '−';
}

.page-khuyen-mai__faq-answer {
  padding: 0 20px 15px;
  font-size: 1rem;
  color: var(--dark-text-color);
  line-height: 1.6;
}

.page-khuyen-mai__faq-answer p {
  margin: 0;
}

.page-khuyen-mai__secondary-button {
  display: inline-block;
  background-color: var(--secondary-color);
  color: var(--primary-color);
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  transition: all 0.3s ease;
  border: 2px solid var(--primary-color);
  cursor: pointer;
  max-width: 100%;
  box-sizing: border-box;
  white-space: normal;
  word-wrap: break-word;
}

.page-khuyen-mai__secondary-button:hover {
  background-color: var(--primary-color);
  color: var(--light-text-color);
}

.page-khuyen-mai__secondary-button--centered {
  display: block;
  margin: calc(var(--spacing-unit) * 2) auto;
  width: fit-content;
}

/* Conclusion Section */
.page-khuyen-mai__conclusion-section {
  padding: calc(var(--spacing-unit) * 3) 0;
  text-align: center;
}

/* Copyright Section */
.page-khuyen-mai__copyright-section {
  padding: var(--spacing-unit) 0;
  background-color: #f0f0f0;
  text-align: center;
  font-size: 0.9rem;
  color: #666;
}

.page-khuyen-mai__copyright-text {
  margin: 0;
}

/* General Image styles */
.page-khuyen-mai img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-khuyen-mai__container {
    padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5);
  }

  .page-khuyen-mai__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }

  .page-khuyen-mai__promotion-grid {
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  }
}

@media (max-width: 768px) {
  .page-khuyen-mai__hero-section {
    padding-top: 10px !important; /* Small top padding for mobile */
  }

  .page-khuyen-mai__hero-content {
    padding: var(--spacing-unit);
  }

  .page-khuyen-mai__main-title {
    font-size: clamp(1.8rem, 7vw, 2.5rem);
    margin-bottom: var(--spacing-unit);
  }

  .page-khuyen-mai__hero-description {
    font-size: 1rem;
    margin-bottom: var(--spacing-unit);
  }

  .page-khuyen-mai__cta-button,
  .page-khuyen-mai__card-button,
  .page-khuyen-mai__secondary-button,
  .page-khuyen-mai a[class*="button"],
  .page-khuyen-mai a[class*="btn"] {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    white-space: normal !important;
    word-wrap: break-word !important;
    padding-left: 15px !important;
    padding-right: 15px !important;
    font-size: 0.95rem !important;
  }

  .page-khuyen-mai__cta-button--centered,
  .page-khuyen-mai__secondary-button--centered {
    width: 100% !important;
    margin-left: 0 !important;
    margin-right: 0 !important;
  }

  .page-khuyen-mai__cta-wrapper {
    padding: 0 15px;
    box-sizing: border-box;
  }

  .page-khuyen-mai__container {
    padding: 15px;
    width: 100% !important;
    max-width: 100% !important;
    box-sizing: border-box !important;
    overflow-x: hidden !important;
  }

  .page-khuyen-mai img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }

  .page-khuyen-mai__intro-section,
  .page-khuyen-mai__promotion-types-section,
  .page-khuyen-mai__terms-section,
  .page-khuyen-mai__how-to-claim-section,
  .page-khuyen-mai__faq-section,
  .page-khuyen-mai__conclusion-section {
    padding: calc(var(--spacing-unit) * 1.5) 0;
  }

  .page-khuyen-mai__section-title {
    font-size: 1.8rem;
    margin-bottom: var(--spacing-unit);
  }

  .page-khuyen-mai__section-description,
  .page-khuyen-mai__text-block {
    font-size: 0.95rem;
  }

  .page-khuyen-mai__promotion-grid {
    grid-template-columns: 1fr;
    gap: var(--spacing-unit);
  }

  .page-khuyen-mai__card-title {
    font-size: 1.2rem;
  }

  .page-khuyen-mai__step-item {
    flex-direction: column;
    align-items: center;
    text-align: center;
  }

  .page-khuyen-mai__step-number {
    margin-bottom: 10px;
  }

  .page-khuyen-mai__step-title {
    font-size: 1.3rem;
  }

  .page-khuyen-mai__faq-question {
    font-size: 1rem;
    padding: 12px 15px;
  }

  .page-khuyen-mai__faq-answer {
    padding: 0 15px 12px;
  }
}

@media (max-width: 549px) {
  .page-khuyen-mai__main-title {
    font-size: clamp(1.6rem, 8vw, 2.2rem);
  }

  .page-khuyen-mai__section-title {
    font-size: 1.6rem;
  }
}