/* =========================================
   sliders.css — 슬라이더 공통 + 종류별 스타일
   index.php 에만 자동 로드 (index.css 대체)

   사용법: data-slider="종류" 로 전환
   종류: fade | slide | kenburns | vertical | carousel
   ========================================= */


/* ── 공통 래퍼 ───────────────────────────── */
.slider {
  position: relative;
  width: 100%;
  height: 100vh;
  min-height: 500px;
  overflow: hidden;
  margin-top: 0;
  background-color: #000;
}

/* ── 공통 슬라이드 아이템 ────────────────── */
.slide {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  z-index: 1;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.slide.active {
  opacity: 1;
  z-index: 2;
}

/* ── 공통 이미지 ─────────────────────────── */
.slide picture {
  display: block;
  width: 100%;
  flex: 1 1 auto;
  min-height: 0;
  position: relative;
  z-index: 2;
  overflow: hidden;
}

.slide-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

/* ── 공통 캡션 ───────────────────────────── */
.slide-caption {
  position: static;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 100%;
  min-height: 112px;
  text-align: center;
  color: #fff;
  white-space: normal;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.68) 0%, rgba(0, 0, 0, 0.86) 100%);
  border-radius: 0;
  padding: 16px 24px 18px;
  z-index: 1;
}

.slide-caption h2 {
  font-size: clamp(1.3rem, 2.8vw, 2.1rem);
  font-weight: 700;
  letter-spacing: -1px;
  margin: 0;
  text-shadow: 0 2px 10px rgba(0,0,0,0.6);
}

.slide-caption p {
  font-size: clamp(0.85rem, 1.5vw, 1.05rem);
  line-height: 1.6;
  margin: 0;
  opacity: 0.9;
  text-shadow: 0 1px 6px rgba(0,0,0,0.5);
}

@media (max-width: 600px) {
  .slide-caption {
    min-height: 96px;
    padding: 12px 14px 14px;
  }

  .slide-caption h2 {
    font-size: clamp(1.05rem, 4.8vw, 1.45rem);
  }

  .slide-caption p {
    font-size: clamp(0.8rem, 3.3vw, 0.95rem);
  }
}

/* ── 공통 점 컨트롤 ──────────────────────── */
.slider-controls { display: none; }

.slider-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.32);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  cursor: pointer;
  transition: background 0.3s, transform 0.3s, box-shadow 0.3s;
}

.slider-dot.active {
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 10px rgba(255, 255, 255, 0.5),
              0 0 20px rgba(255, 255, 255, 0.2);
  transform: scale(1.3);
}

/* ── 종료 메시지 ─────────────────────────── */
.slider-ended-msg {
  display: none;
  position: absolute;
  bottom: 30px;
  right: 30px;
  color: rgba(255,255,255,0.7);
  font-size: 0.8rem;
  letter-spacing: 1px;
  z-index: 10;
}


/* =========================================
   1. FADE — 서서히 사라지고 나타남 (기본)
   ========================================= */
[data-slider="fade"] .slide {
  transition: opacity 0.9s ease;
}

[data-slider="fade"] .slide.active {
  opacity: 1;
}


/* =========================================
   2. SLIDE — 좌우 슬라이딩
   ========================================= */
[data-slider="slide"] {
  overflow: hidden;
}

[data-slider="slide"] .slide {
  opacity: 1;
  transform: translateX(100%);
  transition: transform 0.7s cubic-bezier(0.77, 0, 0.175, 1);
}

[data-slider="slide"] .slide.active {
  transform: translateX(0);
}

[data-slider="slide"] .slide.prev {
  transform: translateX(-100%);
}


/* =========================================
   3. KEN BURNS — 원근감 줌 + 이동 (현재 방식)
   ========================================= */
[data-slider="kenburns"] .slide {
  transition: opacity 0.9s ease;
}

[data-slider="kenburns"] .slide.active {
  opacity: 1;
}

/* 각 슬라이드마다 다른 방향으로 줌 이동 */
[data-slider="kenburns"] .slide .slide-img {
  animation: none;
}
[data-slider="kenburns"] .slide.active:nth-child(1) .slide-img {
  animation: kb-zoom-in    6s ease forwards;
}
[data-slider="kenburns"] .slide.active:nth-child(2) .slide-img {
  animation: kb-pan-right  6s ease forwards;
}
[data-slider="kenburns"] .slide.active:nth-child(3) .slide-img {
  animation: kb-pan-left   6s ease forwards;
}
[data-slider="kenburns"] .slide.active:nth-child(4) .slide-img {
  animation: kb-zoom-in    6s ease forwards;
}
[data-slider="kenburns"] .slide.active:nth-child(5) .slide-img {
  animation: kb-pan-right  6s ease forwards;
}

@keyframes kb-zoom-in {
  from { transform: scale(1.08); }
  to   { transform: scale(1); }
}
@keyframes kb-pan-right {
  from { transform: scale(1.08) translateX(-2%); }
  to   { transform: scale(1)    translateX(0); }
}
@keyframes kb-pan-left {
  from { transform: scale(1.08) translateX(2%); }
  to   { transform: scale(1)    translateX(0); }
}


/* =========================================
   4. VERTICAL — 위아래 슬라이딩
   ========================================= */
[data-slider="vertical"] .slide {
  opacity: 1;
  transform: translateY(100%);
  transition: transform 0.7s cubic-bezier(0.77, 0, 0.175, 1);
}

[data-slider="vertical"] .slide.active {
  transform: translateY(0);
}

[data-slider="vertical"] .slide.prev {
  transform: translateY(-100%);
}


/* =========================================
   5. CAROUSEL — 여러 장 나란히 보기
   ========================================= */
[data-slider="carousel"] {
  height: 500px;
}

[data-slider="carousel"] .slider-track {
  display: flex;
  height: 100%;
  transition: transform 0.6s cubic-bezier(0.77, 0, 0.175, 1);
}

[data-slider="carousel"] .slide {
  position: relative;
  opacity: 1;
  flex: 0 0 calc(100% / 3); /* 3개씩 표시 */
  transform: none;
  transition: none;
  padding: 0 8px;
}

[data-slider="carousel"] .slide-img {
  border-radius: 6px;
}

/* 캐러셀 화살표 버튼 */
.carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  background: rgba(255,255,255,0.9);
  border: none;
  width: 44px; height: 44px;
  border-radius: 50%;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 2px 10px rgba(0,0,0,0.15);
  transition: background 0.2s;
}
.carousel-btn:hover { background: #fff; }
.carousel-btn.prev { left: 10px; }
.carousel-btn.next { right: 10px; }

@media (max-width: 768px) {
  [data-slider="carousel"] .slide { flex: 0 0 50%; } /* 모바일 2개 */
}
@media (max-width: 480px) {
  [data-slider="carousel"] .slide { flex: 0 0 100%; } /* 모바일 소형 1개 */
}