/**
 * 서울비디치과 - Image Placeholders CSS
 * 실제 이미지가 없을 때 사용하는 placeholder 스타일
 * Version: 1.0.0
 */

/* ============================
   공통 Placeholder 스타일
   ============================ */
.img-placeholder,
[data-placeholder] {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, #1a1a1a 0%, #2d2520 50%, #1a1a1a 100%);
  overflow: hidden;
}

.img-placeholder::before,
[data-placeholder]::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 30% 20%, rgba(201, 169, 98, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(139, 90, 43, 0.1) 0%, transparent 40%);
  pointer-events: none;
}

.img-placeholder::after {
  content: attr(data-text);
  font-family: 'Pretendard', sans-serif;
  font-size: 0.9rem;
  color: rgba(201, 169, 98, 0.6);
  text-align: center;
  padding: 1rem;
  z-index: 1;
}

/* ============================
   의료진 프로필 Placeholder
   ============================ */
.doctor-photo-placeholder,
.profile-photo-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  width: 100%;
  height: 100%;
  min-height: 200px;
  background: linear-gradient(180deg, #1e1a16 0%, #141210 100%);
  border-radius: inherit;
}

.doctor-photo-placeholder i,
.profile-photo-placeholder i {
  font-size: 4rem;
  background: linear-gradient(135deg, var(--brand-gold, #C9A962), var(--brand-primary, #8B5A2B));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.7;
}

.doctor-photo-placeholder span,
.profile-photo-placeholder span {
  font-size: 0.85rem;
  color: rgba(201, 169, 98, 0.5);
  text-align: center;
}

/* ============================
   시설 이미지 Placeholder
   ============================ */
.facility-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #1a1512 0%, #0f0e0d 100%);
  border-radius: 16px;
}

.facility-placeholder i {
  font-size: 3rem;
  color: var(--brand-gold, #C9A962);
  opacity: 0.5;
}

.facility-placeholder span {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.4);
}

/* ============================
   Hero 배경 Placeholder
   ============================ */
.hero-bg-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    linear-gradient(135deg, #0a0908 0%, #1a1512 30%, #0f0e0d 60%, #0a0908 100%);
  z-index: -1;
}

.hero-bg-placeholder::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 30%, rgba(201, 169, 98, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 70%, rgba(139, 90, 43, 0.08) 0%, transparent 40%),
    radial-gradient(ellipse at 50% 50%, rgba(201, 169, 98, 0.05) 0%, transparent 60%);
  animation: heroGradientShift 10s ease-in-out infinite;
}

@keyframes heroGradientShift {
  0%, 100% { opacity: 0.6; }
  50% { opacity: 1; }
}

/* ============================
   치료 페이지 Hero Placeholder
   ============================ */
.treatment-hero-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, #121110 0%, #1f1a16 50%, #121110 100%);
  z-index: -1;
}

.treatment-hero-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 30% 20%, rgba(201, 169, 98, 0.12) 0%, transparent 45%),
    radial-gradient(ellipse at 70% 80%, rgba(139, 90, 43, 0.08) 0%, transparent 40%);
}

/* ============================
   갤러리 아이템 Placeholder
   ============================ */
.gallery-item-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  height: 100%;
  min-height: 150px;
  background: linear-gradient(135deg, #1a1614 0%, #0f0e0c 100%);
  border-radius: 12px;
}

.gallery-item-placeholder i {
  font-size: 2.5rem;
  color: var(--brand-gold, #C9A962);
  opacity: 0.4;
}

.gallery-item-placeholder span {
  font-size: 0.8rem;
  color: rgba(255, 255, 255, 0.35);
}

/* ============================
   OG Image / Logo Placeholder (CSS만 - 실제 표시용이 아님)
   ============================ */

/* ============================
   비디오 포스터 Placeholder
   ============================ */
.video-poster-placeholder {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #0a0908 0%, #1a1512 50%, #0a0908 100%);
  border-radius: 16px;
  overflow: hidden;
}

.video-poster-placeholder::before {
  content: '';
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at center, rgba(201, 169, 98, 0.1) 0%, transparent 70%);
}

.video-poster-placeholder i {
  font-size: 4rem;
  color: var(--brand-gold, #C9A962);
  opacity: 0.6;
  z-index: 1;
}

/* ============================
   이미지 로딩 실패 처리
   ============================ */
img[data-src-failed="true"],
img.img-load-failed {
  display: none !important;
}

img[data-src-failed="true"] + .img-placeholder-fallback,
img.img-load-failed + .img-placeholder-fallback {
  display: flex !important;
}

.img-placeholder-fallback {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: linear-gradient(135deg, #1a1614 0%, #0f0e0c 100%);
  border-radius: inherit;
}

/* ============================
   반응형 조정
   ============================ */
@media (max-width: 768px) {
  .doctor-photo-placeholder i,
  .profile-photo-placeholder i {
    font-size: 3rem;
  }
  
  .facility-placeholder {
    height: 150px;
  }
  
  .facility-placeholder i {
    font-size: 2.5rem;
  }
  
  .gallery-item-placeholder {
    min-height: 120px;
  }
  
  .gallery-item-placeholder i {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .doctor-photo-placeholder i,
  .profile-photo-placeholder i {
    font-size: 2.5rem;
  }
  
  .doctor-photo-placeholder span,
  .profile-photo-placeholder span,
  .facility-placeholder span,
  .gallery-item-placeholder span {
    font-size: 0.75rem;
  }
}

/* ============================
   향상된 시설 갤러리 Placeholder
   ============================ */
.facility-card-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 12px;
  background: linear-gradient(135deg, #1a1512 0%, #0f0e0c 100%);
}

.facility-card-placeholder i {
  font-size: 48px;
  color: rgba(201, 169, 98, 0.4);
}

.facility-card-placeholder span {
  color: #666;
  font-size: 14px;
}

/* 시설 카드 스타일 */
.facility-card {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  aspect-ratio: 4/3;
  background: #1a1410;
  border: 1px solid rgba(139, 90, 43, 0.2);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.facility-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(201, 169, 98, 0.15);
}

.facility-card-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 20px;
  background: linear-gradient(transparent, rgba(0,0,0,0.8));
}

.facility-card-info h3 {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 4px;
}

.facility-card-info p {
  color: #b8a99a;
  font-size: 13px;
  margin: 0;
}

/* 시설 그리드 */
.facility-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (max-width: 992px) {
  .facility-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 576px) {
  .facility-grid {
    grid-template-columns: 1fr;
  }
  
  .facility-card-placeholder i {
    font-size: 36px;
  }
}

/* ============================
   비디오 섹션 Placeholder
   ============================ */
.video-intro-section {
  background: linear-gradient(180deg, #0a0a0a 0%, #0d0906 100%);
  padding: 80px 5%;
}

.video-wrapper {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.5);
  border: 1px solid rgba(139, 90, 43, 0.3);
}

.video-placeholder {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  background: linear-gradient(135deg, #1a1410 0%, #0d0906 100%);
}

.video-placeholder-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
}

.video-placeholder-content i {
  font-size: 64px;
  color: var(--brand-gold, #C9A962);
  opacity: 0.5;
}

.video-placeholder-content span {
  color: #888;
  font-size: 15px;
}

/* ============================
   섹션 공통 스타일
   ============================ */
.section-badge {
  display: inline-block;
  background: rgba(139, 90, 43, 0.3);
  color: #C9A962;
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(24px, 4vw, 36px);
  font-weight: 800;
  color: #ffffff;
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 16px;
  color: #b8a99a;
  margin: 0;
}

/* 섹션 공통 컨테이너 */
.container-lg {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 5%;
}

.text-center {
  text-align: center;
}

/* 시설 갤러리 섹션 배경 */
.facility-gallery-section {
  background: #0d0906;
  padding: 80px 5%;
}

/* 비디오 섹션 인라인 스타일 대체 */
.video-highlights {
  display: flex;
  justify-content: center;
  gap: 40px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.video-highlight-item {
  text-align: center;
}

.video-highlight-num {
  font-size: 28px;
  font-weight: 800;
  color: #C9A962;
}

.video-highlight-label {
  font-size: 14px;
  color: #9a8b7a;
}

/* 반응형 */
@media (max-width: 768px) {
  .facility-gallery-section {
    padding: 60px 4%;
  }
  
  .section-badge {
    padding: 6px 16px;
    font-size: 0.8rem;
  }
  
  .section-title {
    font-size: clamp(20px, 5vw, 28px);
  }
  
  .section-subtitle {
    font-size: 14px;
  }
  
  .video-highlights {
    gap: 24px;
  }
  
  .video-highlight-num {
    font-size: 24px;
  }
  
  .video-highlight-label {
    font-size: 12px;
  }
}