@keyframes bounce {
  70% {
    transform: translateY(0%);
  }
  90% {
    transform: translateY(-10%);
  }
}
@keyframes opacity {
  80% {
    opacity: 0;
    transform: translateY(-10%);
  }
  90% {
    opacity: 0.5;
    transform: translateY(-5%);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}
* {
  -webkit-font-smoothing: antialiased;
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  word-break: keep-all;
  font-family: "Pretendard", sans-serif;
  letter-spacing: -0.05rem;
  line-height: 125%;
}

html {
  scroll-behavior: smooth;
}

a {
  text-decoration: none;
}

.header-hero {
  width: 100%;
  background: linear-gradient(0deg, #ffffff00 0%, #d3e6ff88 100%);
  padding: 8rem 0 4rem 0;
  text-align: center;
}

.header-main {
  display: flex;
  justify-content: flex-start;
  flex: 0 0 auto;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.header-title {
  color: #222;
  font-size: 3rem;
  font-weight: 700;
}

.header-des {
  color: #334B9F;
  font-size: 1.5rem;
  font-weight: 500;
}

.header-img {
  max-width: 45rem;
  width: 100%;
  margin-bottom: 2.5rem;
}

.header-link {
  display: inline-block;
  padding: 1rem 5rem;
  background: #004cbd;
  align-items: center;
  border-radius: 5.5rem;
  border: 0;
  color: #fff;
  font-size: 1.2rem;
  font-weight: 600;
  transition: all 300ms ease;
}
.header-link:hover {
  background: #1298A0;
}

.section-des {
  font-size: 1.5rem;
  font-weight: 500;
  color: #334B9F;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  color: #222;
}

.section-p {
  font-size: 1.25rem;
  font-weight: 500;
  line-height: 140%;
  color: #727272;
}

.img-contain {
  width: 90%;
  max-height: 25rem;
  object-fit: contain;
  opacity: 0;
  animation: opacity 50ms both;
  animation-timeline: view(100% auto);
}

.yt {
  padding: 7rem 0 8rem;
}

.yt-main {
  display: flex;
  justify-content: center;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
}

.yt-video {
  padding-top: 3.75rem;
  display: flex;
  justify-content: center;
}

.yt-video--play {
  width: 90%;
  max-width: 1000px;
  height: 500px;
}

.groupware {
  padding: 8rem 0;
  background: #f2f6fb;
}

.items {
  display: flex;
  flex-direction: row;
  align-items: center;
  justify-content: center;
}

.groupware-items-main {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  justify-content: center;
  margin: 0 5rem 0 5rem;
}
.groupware-items-main .section-title {
  margin-top: 0.75rem;
}
.groupware-items-main .section-p {
  margin-top: 1.75rem;
  max-width: 26.5rem;
}

.log {
  padding: 8rem 0;
  background: #fff;
}

.log-items-main {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  justify-content: center;
  margin: 0 0 0 2rem;
}
.log-items-main .section-title {
  margin-top: 0.75rem;
}
.log-items-main .section-p {
  margin-top: 1.75rem;
  max-width: 27rem;
}

.app {
  padding: 6rem 0 3rem 0;
  background: #f2f6fb;
}

.app-items {
  display: flex;
  flex-direction: column;
  flex: 0 0 auto;
  justify-content: center;
  margin-right: 5rem;
}
.app-items .section-title {
  margin-top: 0.75rem;
}
.app-items .section-p {
  margin-top: 1.75rem;
  max-width: 28rem;
}

.app-link {
  margin-top: 1.5rem;
}
.app-link .app-logo {
  margin: 0.25rem;
  transition: all 250ms ease;
}
.app-link .app-logo:hover {
  filter: drop-shadow(0 0 4px #1298A0);
}

.app-img {
  flex: 0 0 auto;
}

.app-img-contain {
  width: 25.625rem;
  height: 34rem;
  object-fit: cover;
  opacity: 0;
  animation: opacity 50ms both;
  animation-timeline: view(100% auto);
}

.event {
  padding: 6.5rem 2rem;
  background: #fff;
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  justify-content: flex-start;
  align-items: center;
}

.event-header {
  text-align: center;
}
.event-header .header-des {
  margin-top: 1.5rem;
}
.event-header .header-des strong {
  font-weight: 700;
}

.event-container {
  margin-top: 3rem;
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-auto-rows: min-content;
  gap: 1.25rem;
}

.event-item {
  padding: 3.75rem;
  max-width: 27rem;
  box-shadow: 0 0 8px 0 #bfd6f2;
  border-radius: 1.25rem;
  transition: all 200ms ease;
  background: #fff;
}
.event-item:hover .icon {
  animation: bounce 0.5s infinite;
}
.event-item:hover {
  filter: drop-shadow(0 0 4px #1298a045);
}

.item-count {
  color: #b0b0b0;
  font-size: 1.875rem;
  text-align: right;
  font-weight: 300;
}

.icon {
  color: #004cbd;
  font-size: 4rem;
  margin-bottom: 1rem;
}

.item-box {
  text-align: left;
}

.item-title {
  font-size: 1.875rem;
  font-weight: 700;
  color: #222;
}

.item-des {
  font-size: 1.25rem;
  font-weight: 500;
  margin-top: 1.25rem;
  color: #b0b0b0;
}

.point {
  padding: 8rem 0;
  background: #f2f6fb;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.point-header-title {
  font-size: 3rem;
  color: #004cbd;
  font-weight: 700;
  text-align: center;
}

.point-container1 {
  display: flex;
  flex: 0 0 auto;
  flex-direction: row;
  justify-content: center;
  margin-top: 3.75rem;
}

.point-container2 {
  display: flex;
  flex: 0 0 auto;
  flex-direction: row;
  justify-content: center;
  margin-top: 1.25rem;
  margin-bottom: 2.5rem;
}

.point-img {
  display: block;
  min-width: 50%;
  width: 500px;
  object-fit: cover;
  opacity: 0;
  animation: opacity 50ms both;
  animation-timeline: view(100% auto);
}

.point-item {
  display: flex;
  flex: 0 0 auto;
  flex-direction: column;
  justify-content: center;
  padding: 3.125rem 4rem;
  background: #fff;
  width: 500px;
}

.point-title {
  color: #222;
  font-size: 1.75rem;
  font-weight: 700;
}

.point-list {
  color: #727272;
  margin-top: 0.75rem;
  font-size: 1.125rem;
  font-weight: 500;
  list-style-position: inside;
}
.point-list li {
  line-height: 150%;
}

.point-img-container2 {
  position: relative;
}
.point-img-container2 .img-tooltip {
  visibility: hidden;
  background: rgba(0, 0, 0, 0.7);
  padding: 0.5rem 0.75rem;
  top: 0.75rem;
  left: 0.75rem;
  position: absolute;
  text-align: center;
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  border-radius: 0.5rem;
}
.point-img-container2:hover .img-tooltip {
  visibility: visible;
}