/* style/index-platform-introduction.css */

/* Biến CSS */
:root {
  --page-primary-color: #1A2B3C;
  --page-secondary-color: #FFD700;
  --page-text-light: #FFFFFF;
  --page-text-dark: #1A2B3C;
  --page-background-dark: #1A2B3C;
  --page-background-light: #F0F2F5;
  --page-accent-color: #FFD700;
  --page-hover-color: #E0B700;
  --page-border-color: #3A4B5C;
}

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

.page-index-platform-introduction__container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.page-index-platform-introduction__section {
  padding: 60px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.page-index-platform-introduction__hero-section {
  background: linear-gradient(135deg, var(--page-primary-color) 0%, #000000 100%);
  padding: 100px 0;
  color: var(--page-text-light);
  position: relative;
  overflow: hidden;
}

.page-index-platform-introduction__hero-title {
  font-size: 3.5em;
  font-weight: bold;
  margin-bottom: 20px;
  color: var(--page-accent-color);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.5);
  line-height: 1.2;
}

.page-index-platform-introduction__hero-subtitle {
  font-size: 1.4em;
  margin-bottom: 40px;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  color: rgba(255, 255, 255, 0.9);
}

.page-index-platform-introduction__hero-cta-group {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 40px;
}

.page-index-platform-introduction__button {
  display: inline-block;
  padding: 15px 30px;
  border-radius: 8px;
  font-size: 1.1em;
  font-weight: bold;
  text-decoration: none;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
  text-align: center;
}

.page-index-platform-introduction__button--primary {
  background-color: var(--page-accent-color);
  color: var(--page-text-dark);
}

.page-index-platform-introduction__button--primary:hover {
  background-color: var(--page-hover-color);
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(255, 215, 0, 0.3);
}

.page-index-platform-introduction__button--secondary {
  background-color: transparent;
  color: var(--page-accent-color);
  border: 2px solid var(--page-accent-color);
}

.page-index-platform-introduction__button--secondary:hover {
  background-color: var(--page-accent-color);
  color: var(--page-text-dark);
  transform: translateY(-3px);
  box-shadow: 0 8px 15px rgba(255, 215, 0, 0.3);
}

.page-index-platform-introduction__hero-image {
  max-width: 90%;
  height: auto;
  margin-top: 30px;
  border-radius: 15px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.page-index-platform-introduction__section-title {
  font-size: 2.8em;
  font-weight: bold;
  margin-bottom: 40px;
  color: var(--page-accent-color);
  text-shadow: 1px 1px 3px rgba(0, 0, 0, 0.3);
}

.page-index-platform-introduction__text-block {
  font-size: 1.1em;
  max-width: 900px;
  margin: 0 auto 20px auto;
  color: rgba(255, 255, 255, 0.85);
  text-align: justify;
}

.page-index-platform-introduction__text-block--small {
  font-size: 0.95em;
  color: rgba(255, 255, 255, 0.7);
}

.page-index-platform-introduction__image {
  max-width: 100%;
  height: auto;
  border-radius: 10px;
  margin-top: 30px;
  box-shadow: 0 5px 20px rgba(0, 0, 0, 0.3);
}

.page-index-platform-introduction__image--left {
  float: left;
  margin-right: 30px;
  margin-bottom: 20px;
  max-width: 45%;
}

.page-index-platform-introduction__image--right {
  float: right;
  margin-left: 30px;
  margin-bottom: 20px;
  max-width: 45%;
}

.page-index-platform-introduction__image--center {
  display: block;
  margin-left: auto;
  margin-right: auto;
}

.page-index-platform-introduction__about-us, .page-index-platform-introduction__security {
  background-color: #12202E;
  padding: 80px 0;
}

.page-index-platform-introduction__about-us .page-index-platform-introduction__container::after,
.page-index-platform-introduction__security .page-index-platform-introduction__container::after {
  content: "";
  display: table;
  clear: both;
}

.page-index-platform-introduction__list {
  list-style: none;
  padding: 0;
  max-width: 800px;
  margin: 30px auto;
  text-align: left;
}

.page-index-platform-introduction__list li {
  background-color: rgba(255, 215, 0, 0.1);
  margin-bottom: 15px;
  padding: 15px 20px;
  border-left: 5px solid var(--page-accent-color);
  border-radius: 5px;
  font-size: 1.1em;
  color: rgba(255, 255, 255, 0.9);
}

.page-index-platform-introduction__list li strong {
  color: var(--page-accent-color);
}

.page-index-platform-introduction__advantages {
  background-color: var(--page-background-dark);
  padding: 80px 0;
}

.page-index-platform-introduction__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-index-platform-introduction__grid-item {
  background-color: #12202E;
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-platform-introduction__grid-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.page-index-platform-introduction__icon {
  width: 80px;
  height: 80px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 5px var(--page-accent-color));
}

.page-index-platform-introduction__grid-title {
  font-size: 1.8em;
  color: var(--page-accent-color);
  margin-bottom: 15px;
}

.page-index-platform-introduction__grid-text {
  font-size: 1em;
  color: rgba(255, 255, 255, 0.75);
  text-align: justify;
}

.page-index-platform-introduction__cta-center {
  margin-top: 50px;
}

.page-index-platform-introduction__games {
  background-color: #12202E;
  padding: 80px 0;
}

.page-index-platform-introduction__game-categories {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
  margin-top: 50px;
}

.page-index-platform-introduction__game-item {
  background-color: var(--page-primary-color);
  padding: 30px;
  border-radius: 10px;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.page-index-platform-introduction__game-item:hover {
  transform: translateY(-10px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.page-index-platform-introduction__game-icon {
  width: 90px;
  height: 90px;
  margin-bottom: 20px;
  filter: drop-shadow(0 0 7px var(--page-accent-color));
}

.page-index-platform-introduction__game-title {
  font-size: 1.6em;
  color: var(--page-accent-color);
  margin-bottom: 10px;
}

.page-index-platform-introduction__game-description {
  font-size: 0.95em;
  color: rgba(255, 255, 255, 0.7);
}

.page-index-platform-introduction__app-download {
  background-color: var(--page-background-dark);
  padding: 80px 0;
}

.page-index-platform-introduction__app-buttons {
  display: flex;
  justify-content: center;
  gap: 25px;
  margin-top: 40px;
  margin-bottom: 50px;
}

.page-index-platform-introduction__button--app {
  background-color: var(--page-accent-color);
  color: var(--page-text-dark);
  padding: 18px 35px;
  font-size: 1.2em;
  border-radius: 50px;
  box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.page-index-platform-introduction__button--app:hover {
  background-color: var(--page-hover-color);
  transform: scale(1.05);
  box-shadow: 0 10px 30px rgba(255, 215, 0, 0.6);
}

.page-index-platform-introduction__cta-final {
  background: linear-gradient(45deg, var(--page-primary-color) 0%, #000000 100%);
  padding: 100px 0;
}

.page-index-platform-introduction__cta-content {
  max-width: 900px;
  margin: 0 auto;
}

.page-index-platform-introduction__button--large {
  padding: 20px 45px;
  font-size: 1.4em;
  border-radius: 10px;
  margin-top: 40px;
}

/* Responsive Design */
@media (max-width: 1024px) {
  .page-index-platform-introduction__hero-title {
    font-size: 3em;
  }
  .page-index-platform-introduction__section-title {
    font-size: 2.2em;
  }
  .page-index-platform-introduction__image--left,
  .page-index-platform-introduction__image--right {
    float: none;
    margin: 30px auto;
    max-width: 80%;
  }
  .page-index-platform-introduction__text-block {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .page-index-platform-introduction__hero-title {
    font-size: 2.5em;
  }
  .page-index-platform-introduction__hero-subtitle {
    font-size: 1.2em;
  }
  .page-index-platform-introduction__hero-cta-group {
    flex-direction: column;
    gap: 15px;
  }
  .page-index-platform-introduction__button {
    width: 80%;
    margin: 0 auto;
  }
  .page-index-platform-introduction__section-title {
    font-size: 1.8em;
  }
  .page-index-platform-introduction__grid,
  .page-index-platform-introduction__game-categories {
    grid-template-columns: 1fr;
  }
  .page-index-platform-introduction__app-buttons {
    flex-direction: column;
    gap: 15px;
  }
  .page-index-platform-introduction__button--app {
    width: 80%;
    margin: 0 auto;
  }
  .page-index-platform-introduction__list li {
    font-size: 1em;
  }
}

@media (max-width: 480px) {
  .page-index-platform-introduction__hero-title {
    font-size: 2em;
  }
  .page-index-platform-introduction__hero-subtitle {
    font-size: 1em;
  }
  .page-index-platform-introduction__button {
    padding: 12px 20px;
    font-size: 1em;
  }
  .page-index-platform-introduction__section-title {
    font-size: 1.5em;
  }
  .page-index-platform-introduction__grid-title,
  .page-index-platform-introduction__game-title {
    font-size: 1.4em;
  }
  .page-index-platform-introduction__button--large {
    font-size: 1.2em;
    padding: 15px 30px;
  }
  .page-index-platform-introduction__container {
    padding: 0 15px;
  }
}