/* 배경 전체 */
.bg {
  position: absolute;
  width: 100%;
  top: 0;
  left: 0;
  bottom: 0;
  right: 0;
  background: linear-gradient(135deg, #70a9ff, #155717);
  overflow: hidden;
}

/* 공통 원 스타일 */
.circle {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.7);
  animation: floatUpDown 6s ease-in-out infinite;
}

/* 원 크기 & 위치 */
.c1 {
  width: 30px; height: 30px;
  top: 10%; left: 20%;
  animation-delay: 0s;
}
.c2 {
  width: 40px; height: 40px;
  top: 40%; left: 70%;
  animation-delay: 1s;
}
.c3 {
  width: 20px; height: 20px;
  top: 70%; left: 30%;
  animation-delay: 2s;
}
.c4 {
  width: 50px; height: 50px;
  top: 20%; left: 80%;
  animation-delay: 3s;
}

/* 슬릭 기본 글자/아이콘 제거 */
.video-slider .slick-prev:before,
.video-slider .slick-next:before { content: none !important; }

/* 슬라이더 래퍼 기준으로 위치 고정 */
.video-slider { position: relative; }

/* 공통 버튼 */
.video-slider .slick-prev,
.video-slider .slick-next{
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(8, 24, 36, .55);          /* 어두운 반투명 */
  backdrop-filter: blur(3px);
  border: 1px solid rgba(255,255,255,.25);
  box-shadow: 0 8px 24px rgba(0,0,0,.25);
  display: flex !important;
  align-items: center; justify-content: center;
  z-index: 5;
  transition: background .25s, transform .15s, box-shadow .25s;
}

/* 위치: 양 옆 바깥으로 살짝 */
.video-slider .slick-prev{ left: -60px; }
.video-slider .slick-next{ right: -60px; }

/* 호버/포커스 */
.video-slider .slick-prev:hover,
.video-slider .slick-next:hover,
.video-slider .slick-prev:focus,
.video-slider .slick-next:focus{
  background: rgba(8, 24, 36, .85);
  transform: translateY(-50%) scale(1.06);
  box-shadow: 0 10px 26px rgba(0,0,0,.35);
  outline: none;
}

/* 비활성 상태(끝 슬라이드일 때) */
.video-slider .slick-disabled{
  opacity: .4; pointer-events: none; filter: grayscale(30%);
}

/* 아이콘: 화이트 체브론 (SVG data URI) */
.video-slider .slick-prev::after,
.video-slider .slick-next::after{
  content: "";
  display: block;
  width: 12px; height: 12px;
  background-repeat: no-repeat;
  background-position: center;
  background-size: 18px 18px;
}
.slick-prev,
.slick-next {
  font-size: 0 !important;   /* 글자 숨김 */
  line-height: 0 !important;
  color: transparent !important;
  text-indent: -9999px;      /* 화면 밖으로 밀기 */

  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 48px; height: 48px;
  border-radius: 50%;
  background: rgba(42, 77, 127, 0.8);
  display: flex !important;
  align-items: center;
  justify-content: center;
  z-index: 5;
  transition: background 0.3s, transform 0.2s;
  cursor: pointer;

  
}
/* 위치 */
.slick-prev { left: -60px; }
.slick-next { right: -60px; }

/* 화살표 아이콘 (border로 만들기) */
.slick-prev::after,
.slick-next::after {
  content: "";
  display: block;
  width: 10px; height: 10px;
  border-top: 3px solid #fff;
  border-right: 3px solid #fff;
}

/* ← 방향 (좌) */
.slick-prev::after {
  transform: rotate(-135deg);
}

/* → 방향 (우) */
.slick-next::after {
  transform: rotate(45deg);
}

/* 중앙 확대 / 양옆 축소+반투명 (이미 적용했다면 유지) */
.video-slider .video-item{
  transition: transform .35s ease, opacity .35s ease;
  transform: scale(.86);
  opacity: .55;
  width: 100%;
  aspect-ratio: 16 / 9;  
  padding: 10px; 

}
.video-slider .slick-center{
  transform: scale(1.08);
  width: 100%;
  opacity: 1;
  z-index: 2;  aspect-ratio: 16 / 9;
}


/* iframe을 박스에 꽉 채우기 */
.video-slider .video-item iframe{
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

/* 중앙 슬라이드 확대 효과 */
.video-slider .slick-center{
  transform: scale(1.08);
  opacity: 1;
  z-index: 2;
}

/* hover: 그라데이션 효과 */
.service-item:hover {
    cursor: pointer;
  background: linear-gradient(135deg, #0087a5, #349900);
  border-color: transparent;  /* 전환 효과 */
  transition: background 0.6s ease, border-color 0.6s ease, color 0.6s ease;
}

.service-item:hover h5 {
  color: #fff;
}


/* 반응형: 화면 좁아지면 버튼이 안쪽으로 */
@media (max-width: 1200px){
  .video-slider .slick-prev{ left: -30px; }
  .video-slider .slick-next{ right: -30px; }
}
@media (max-width: 992px){
  .video-slider .slick-prev{ left: 8px; }
  .video-slider .slick-next{ right: 8px; }
}
@media (max-width: 560px){
  .video-slider .slick-prev, .video-slider .slick-next{
    width: 42px; height: 42px;
  }
}


/* 위아래 둥실둥실 애니메이션 */
@keyframes floatUpDown {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-40px);
  }
}