/* style/about.css */
:root {
  --color-primary: #11A84E;
  --color-secondary: #22C768;
  --color-bg-card: #11271B;
  --color-bg-main: #08160F;
  --color-text-main: #F2FFF6;
  --color-text-secondary: #A7D9B8;
  --color-border: #2E7A4E;
  --color-glow: #57E38D;
  --color-gold: #F2C14E;
  --color-divider: #1E3A2A;
  --color-deep-green: #0A4B2C;
  --btn-gradient: linear-gradient(180deg, #2AD16F 0%, #13994A 100%);
}

/* Base styles for the page-about scope */
.page-about {
  font-family: 'Arial', sans-serif;
  color: var(--color-text-main); /* Default text color for the page, assuming dark background */
  background-color: var(--color-bg-main); /* Ensure consistent background */
  line-height: 1.6;
}

.page-about__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  box-sizing: border-box;
}

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

.page-about__section--mission-vision,
.page-about__section--values,
.page-about__section--history,
.page-about__section--team,
.page-about__section--faq {
  background-color: var(--color-bg-main);
  color: var(--color-text-main);
}

.page-about__section--why-choose,
.page-about__section--cta {
  background-color: var(--color-bg-card);
  color: var(--color-text-main);
}

.page-about__main-title {
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  font-weight: bold;
  line-height: 1.2;
  color: var(--color-gold);
  margin-bottom: 20px;
}

.page-about__section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: bold;
  color: var(--color-primary);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.page-about__section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--btn-gradient);
  margin: 10px auto 0;
  border-radius: 2px;
}

.page-about__section-intro {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 800px;
  margin: 0 auto 40px;
}

.page-about__text-block {
  text-align: left;
  margin-bottom: 40px;
  color: var(--color-text-main);
}

.page-about__text-block p {
  margin-bottom: 15px;
  font-size: 1rem;
  line-height: 1.8;
}

/* Hero Section */
.page-about__hero-section {
  position: relative;
  width: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  padding-top: 10px; /* Small top padding, body handles header offset */
  overflow: hidden;
  min-height: 600px;
  background-color: var(--color-bg-main);
}

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

.page-about__hero-content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  text-align: center;
  color: var(--color-text-main);
}

.page-about__hero-description {
  font-size: 1.2rem;
  margin-bottom: 30px;
  color: var(--color-text-secondary);
}

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

/* Buttons */
.page-about__btn-primary,
.page-about__btn-secondary {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: bold;
  font-size: 1.1rem;
  transition: all 0.3s ease;
  box-sizing: border-box;
  max-width: 100%; /* Ensure responsiveness */
  white-space: normal; /* Allow text wrap */
  word-wrap: break-word;
}

.page-about__btn-primary {
  background: var(--btn-gradient);
  color: var(--color-text-main);
  border: none;
  box-shadow: 0 4px 15px rgba(34, 199, 104, 0.4);
}

.page-about__btn-primary:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
}

.page-about__btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.page-about__btn-secondary:hover {
  background: var(--color-primary);
  color: var(--color-text-main);
}

.page-about__btn-primary--large,
.page-about__btn-secondary--large {
  padding: 18px 35px;
  font-size: 1.2rem;
}

/* Values Grid */
.page-about__values-grid,
.page-about__features-grid,
.page-about__team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
  margin-top: 40px;
  text-align: left;
}

.page-about__value-card,
.page-about__feature-card {
  background-color: var(--color-bg-card);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.2);
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease;
}

.page-about__value-card:hover,
.page-about__feature-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

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

.page-about__value-description,
.page-about__feature-description {
  font-size: 1rem;
  color: var(--color-text-secondary);
}

/* Timeline */
.page-about__timeline {
  position: relative;
  max-width: 800px;
  margin: 60px auto;
  padding: 0 20px;
}

.page-about__timeline::before {
  content: '';
  position: absolute;
  width: 4px;
  background-color: var(--color-border);
  top: 0;
  bottom: 0;
  left: 50%;
  margin-left: -2px;
}

.page-about__timeline-item {
  padding: 20px 0;
  position: relative;
  width: 50%;
}

.page-about__timeline-item:nth-child(odd) {
  left: 0;
  padding-right: 40px;
  text-align: right;
}

.page-about__timeline-item:nth-child(even) {
  left: 50%;
  padding-left: 40px;
  text-align: left;
}

.page-about__timeline-item::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  background-color: var(--color-primary);
  border: 4px solid var(--color-bg-main);
  top: 28px;
  border-radius: 50%;
  z-index: 1;
}

.page-about__timeline-item:nth-child(odd)::after {
  right: -8px;
}

.page-about__timeline-item:nth-child(even)::after {
  left: -8px;
}

.page-about__timeline-date {
  font-size: 1.2rem;
  font-weight: bold;
  color: var(--color-gold);
  margin-bottom: 10px;
}

.page-about__timeline-title {
  font-size: 1.3rem;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.page-about__timeline-description {
  font-size: 1rem;
  color: var(--color-text-secondary);
}

/* Team Section */
.page-about__team-member {
  background-color: var(--color-bg-card);
  padding: 20px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
}

.page-about__team-photo {
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  margin-bottom: 15px;
  border: 3px solid var(--color-primary);
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-about__member-name {
  font-size: 1.3rem;
  color: var(--color-text-main);
  margin-bottom: 5px;
}

.page-about__member-role {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

/* FAQ Section */
.page-about__faq-list {
  max-width: 900px;
  margin: 40px auto 0;
  text-align: left;
}

.page-about__faq-item {
  background-color: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 8px;
  margin-bottom: 15px;
  overflow: hidden;
}

.page-about__faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: bold;
  font-size: 1.1rem;
  color: var(--color-primary);
  transition: background-color 0.3s ease;
}

.page-about__faq-item summary::-webkit-details-marker {
  display: none;
}

.page-about__faq-item summary:hover {
  background-color: var(--color-deep-green);
}

.page-about__faq-item[open] summary {
  background-color: var(--color-deep-green);
  color: var(--color-text-main);
}

.page-about__faq-toggle {
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-gold);
}

.page-about__faq-item[open] .page-about__faq-toggle {
  color: var(--color-text-main);
}

.page-about__faq-answer {
  padding: 0 20px 20px;
  font-size: 1rem;
  color: var(--color-text-secondary);
}

/* Call to Action Section */
.page-about__section--cta {
  padding: 80px 0;
}

.page-about__container--flex {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 30px;
}

.page-about__cta-content {
  flex: 1;
  text-align: left;
  min-width: 300px;
}

.page-about__cta-content .page-about__section-title {
  text-align: left;
  color: var(--color-gold);
}

.page-about__cta-content .page-about__section-title::after {
  margin-left: 0;
}

.page-about__cta-content .page-about__section-intro {
  text-align: left;
  margin-left: 0;
}

.page-about__cta-buttons-wrapper {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

/* General Image Styles */
.page-about__image {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 40px auto 0;
  border-radius: 10px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
  border: 1px solid var(--color-border);
}

/* Responsive Styles */
@media (max-width: 1024px) {
  .page-about__hero-content {
    max-width: 700px;
  }
  .page-about__main-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }
  .page-about__hero-description {
    font-size: 1.1rem;
  }
  .page-about__section-title {
    font-size: clamp(1.6rem, 3.5vw, 2.5rem);
  }
  .page-about__timeline::before {
    left: 20px;
  }
  .page-about__timeline-item {
    width: 100%;
    padding-left: 60px;
    padding-right: 20px;
    text-align: left;
  }
  .page-about__timeline-item:nth-child(odd) {
    padding-right: 20px;
    text-align: left;
  }
  .page-about__timeline-item:nth-child(odd)::after,
  .page-about__timeline-item:nth-child(even)::after {
    left: 12px;
  }
}

@media (max-width: 768px) {
  .page-about {
    font-size: 16px;
    line-height: 1.6;
  }
  .page-about__hero-section {
    padding: 40px 15px;
    min-height: 450px;
  }
  .page-about__main-title {
    font-size: clamp(1.8rem, 8vw, 2.5rem);
  }
  .page-about__hero-description {
    font-size: 1rem;
  }
  .page-about__section {
    padding: 40px 0;
  }
  .page-about__section-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }
  .page-about__section-intro {
    margin-bottom: 30px;
  }
  .page-about__cta-group {
    flex-direction: column;
    gap: 15px;
  }
  .page-about__btn-primary,
  .page-about__btn-secondary,
  .page-about a[class*="button"],
  .page-about 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;
    padding-right: 15px;
  }
  .page-about__cta-buttons-wrapper {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
    flex-direction: column;
    gap: 15px;
  }
  .page-about__values-grid,
  .page-about__features-grid,
  .page-about__team-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
  .page-about__team-photo {
    width: 120px;
    height: 120px;
  }
  .page-about__faq-item summary {
    font-size: 1rem;
    padding: 15px;
  }
  .page-about__faq-answer {
    padding: 0 15px 15px;
  }
  .page-about__container--flex {
    flex-direction: column;
    text-align: center;
  }
  .page-about__cta-content {
    text-align: center;
  }
  .page-about__cta-content .page-about__section-title,
  .page-about__cta-content .page-about__section-intro {
    text-align: center;
  }
  .page-about__cta-content .page-about__section-title::after {
    margin-left: auto;
    margin-right: auto;
  }
  .page-about img {
    max-width: 100% !important;
    width: 100% !important;
    height: auto !important;
  }
  .page-about__section,
  .page-about__card,
  .page-about__container {
    max-width: 100% !important;
    width: 100% !important;
    box-sizing: border-box !important;
    padding-left: 15px;
    padding-right: 15px;
  }
  .page-about__hero-section {
    padding-top: 10px !important; /* body đã xử lý --header-offset */
  }
}

@media (max-width: 480px) {
  .page-about__main-title {
    font-size: clamp(1.5rem, 9vw, 2rem);
  }
  .page-about__hero-description {
    font-size: 0.95rem;
  }
  .page-about__section-title {
    font-size: clamp(1.3rem, 7vw, 1.8rem);
  }
  .page-about__btn-primary,
  .page-about__btn-secondary {
    padding: 12px 20px;
    font-size: 1rem;
  }
  .page-about__btn-primary--large,
  .page-about__btn-secondary--large {
    padding: 15px 25px;
    font-size: 1.1rem;
  }
  .page-about__timeline::before {
    left: 20px;
  }
  .page-about__timeline-item {
    padding-left: 50px;
  }
  .page-about__timeline-item:nth-child(odd)::after,
  .page-about__timeline-item:nth-child(even)::after {
    left: 12px;
  }
}