:where([class^="ri-"])::before {
  content: "\f3c2";
}
body {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-size: 16px;
  font-family: "Inter", sans-serif;
  overflow-x: hidden;
}
.sticky-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 1);
  backdrop-filter: blur(8px);
  z-index: 1000;
  transition: all 0.3s ease;
}
.sticky-nav .nav-link {
  color: #1f2937;
}
.sticky-nav .logo {
  color: #1f2937;
}
.hero-section {
  background-size: cover;
  background-position: center;
  transition: background-image 0.5s ease;
}
.hero-background {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  animation: zoomBackground 6s linear infinite;
}
@keyframes zoomBackground {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.05);
  }
}
.hero-overlay {
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.7) 0%,
    rgba(0, 0, 0, 0.5) 50%,
    rgba(0, 0, 0, 0.2) 100%
  );
}
.nav-link {
  position: relative;
}
.nav-link::after {
  content: "";
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: #ff4500;
  transition: width 0.3s;
}
.nav-link:hover::after {
  width: 100%;
}
.carousel-item {
  transition: opacity 0.5s ease;
  opacity: 0;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}
.carousel-item.active {
  opacity: 1;
  position: relative;
}
input:focus {
  outline: none;
}
.highlighted-text {
  background: linear-gradient(to right, #00f, #00edff);
  background: linear-gradient(to right, #b22222, #ffe4b5);
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-fill-color: transparent;
  background-size: 100% 100%;
  display: inline-block;
}
/* #area-mission {
  background: linear-gradient(to right, #b22222, #ffe4b5);
} */
.advantage-section {
  background-image: url("../images/choose_bg.jpg");
  background-size: cover;
  background-position: center;
}
.mission-section {
  background-image: url("../images/mission_bg.jpg");
  background-size: cover;
  background-position: center;
}
.explore-section {
  background-image: url("../images/explore_bg.jpg");
  background-size: cover;
  background-position: center;
}
.contact-section {
  background-image: url("../images/contact_bg.jpg");
  background-size: cover;
  background-position: center;
}
.footer-section {
  background-image: url("../images/footer_bg.jpg");
  background-size: cover;
  background-position: center;
}
.content-container {
  background-image: url("");
  background-attachment: fixed;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  width: 100vw;
  min-height: calc(100vh - 320px - 493px);
}
@media (max-width: 768px) {
  .content-container {
    background-attachment: scroll;
  }
}
.logo {
  max-height: 48px;
}
nav button.sticky-lang {
  color: #1f2937;
}