:root {
  --primary-color: #6d4c41;
  --accent-color: #a1887f;
  --bg-color: #fdfbf9;
  --card-bg: #ffffff;
  --text-main: #3e2723;
  --text-sub: #8d6e63;
  --point-color: #d7ccc8;
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, Roboto, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-main);
  margin: 0;
  padding: 0;
  line-height: 1.6;
}

header {
  background-color: var(--card-bg);
  padding: 80px 20px 60px;
  text-align: center;
  border-bottom: 1px solid #f3ece7;
}

.logo-area {
  display: inline-block;
  position: relative;
  margin-bottom: 10px;
}

.brand-logo {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: 0.15em;
  color: var(--primary-color);
  margin: 0;
  text-transform: uppercase;
}

.logo-underline {
  height: 4px;
  width: 40px;
  background-color: var(--accent-color);
  margin: 5px auto 0;
  border-radius: 2px;
}

.brand-slogan {
  font-size: 1.1rem;
  color: var(--text-sub);
  margin-top: 10px;
  letter-spacing: 0.05em;
}

.contact-info {
  margin-top: 25px;
}

.phone-link {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--primary-color);
  text-decoration: none;
  background: #f8f1ee;
  padding: 12px 28px;
  border-radius: 50px;
  display: inline-block;
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.phone-link:hover {
  background: var(--primary-color);
  color: white;
  transform: translateY(-2px);
}

.social-links {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.social-btn {
  text-decoration: none;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.3s;
  border: 1px solid #eee;
  background: white;
  color: var(--text-sub);
}

.social-btn:hover {
  border-color: var(--accent-color);
  color: var(--primary-color);
  transform: translateY(-2px);
}

.social-btn.instagram:hover { color: #E1306C; }
.social-btn.blog:hover { color: #03C75A; }
.social-btn.naver:hover { color: #2DB400; }

main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 60px 20px;
}

.card {
  background: var(--card-bg);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 10px 40px rgba(109, 76, 65, 0.05);
  margin-bottom: 60px;
  border: 1px solid #f3ece7;
}

.input-group {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 15px;
  margin-bottom: 25px;
}

input[type="text"] {
  padding: 15px;
  border: 1px solid #e0d5d0;
  border-radius: 12px;
  font-size: 1rem;
  background-color: #faf8f7;
  transition: border-color 0.3s;
}

.file-inputs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 30px;
}

.file-box label { font-weight: 700; margin-bottom: 10px; color: var(--primary-color); font-size: 0.95rem; }
input[type="file"] { border: 1px dashed #d7ccc8; padding: 15px; border-radius: 12px; cursor: pointer; background: #fff; }

#uploadBtn {
  width: 100%;
  background-color: var(--primary-color);
  color: white;
  border: none;
  padding: 18px;
  font-size: 1.1rem;
  font-weight: 700;
  border-radius: 15px;
  cursor: pointer;
  transition: all 0.3s;
}

#uploadBtn:hover {
  background-color: #3e2723;
}

.section-header {
  text-align: center;
  margin-bottom: 50px;
}

.section-header h2 {
  font-size: 2.5rem;
  color: var(--primary-color);
  margin-bottom: 15px;
}

.filter-controls {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 15px;
}

.filter-controls select {
  padding: 10px 20px;
  border-radius: 30px;
  border: 1px solid #e0d5d0;
  background-color: white;
  color: var(--primary-color);
  font-weight: 600;
  cursor: pointer;
  outline: none;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(380px, 1fr));
  gap: 40px;
}

.photo-card {
  background: var(--card-bg);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 8px 25px rgba(109, 76, 65, 0.06);
  border: 1px solid #f3ece7;
  transition: transform 0.4s;
  position: relative;
}

.photo-card:hover {
  transform: translateY(-10px);
}

/* 이미지 겹치기 핵심 스타일 */
.image-container {
  position: relative;
  width: 100%;
  height: 400px;
  cursor: pointer;
  overflow: hidden;
  background-color: #eee;
}

.image-container img {
  position: absolute; /* 절대 위치로 두 사진을 겹침 */
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.4s ease-in-out;
}

.img-after {
  opacity: 0; /* 평소에는 After 숨김 */
}

.image-container:hover .img-after,
.image-container.is-active .img-after {
  opacity: 1; /* 호버 시 After 보임 */
}

.image-container:hover .img-before,
.image-container.is-active .img-before {
  opacity: 0; /* 호버 시 Before 숨김 */
}

.image-label {
  position: absolute;
  bottom: 20px;
  right: 20px;
  background: rgba(62, 39, 35, 0.8);
  color: white;
  padding: 6px 16px;
  border-radius: 30px;
  font-size: 0.85rem;
  font-weight: 600;
  backdrop-filter: blur(4px);
  z-index: 5;
  transition: opacity 0.4s;
  pointer-events: none;
}

.label-after {
  opacity: 0;
  background: rgba(109, 76, 65, 0.9);
}

.image-container:hover .label-after,
.image-container.is-active .label-after {
  opacity: 1;
}

.image-container:hover .label-before,
.image-container.is-active .label-before {
  opacity: 0;
}

.admin-controls {
  position: absolute;
  top: 10px;
  left: 10px;
  display: flex;
  gap: 5px;
  z-index: 10;
}

.admin-btn-sm {
  padding: 5px 10px;
  border-radius: 5px;
  border: none;
  font-size: 0.75rem;
  font-weight: bold;
  cursor: pointer;
  color: white;
  opacity: 0.8;
}

.btn-edit { background-color: var(--accent-color); }
.btn-delete { background-color: #e57373; }

.photo-info { padding: 25px; }
.photo-info h3 { margin: 0; font-size: 1.4rem; color: var(--primary-color); font-weight: 700; }
.badge { display: inline-block; background: #f8f1ee; color: var(--accent-color); padding: 4px 12px; border-radius: 6px; font-size: 0.85rem; font-weight: 600; margin-right: 8px; margin-top: 12px; }

/* 모달 (상세보기 창) 스타일 */
.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.9);
  backdrop-filter: blur(10px);
  overflow-y: auto;
}

.modal-content {
  position: relative;
  background-color: #fff;
  margin: 50px auto;
  padding: 40px;
  width: 90%;
  max-width: 1100px;
  border-radius: 30px;
  animation: modal-anim 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes modal-anim {
  from { transform: scale(0.8); opacity: 0; }
  to { transform: scale(1); opacity: 1; }
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 30px;
  color: #333;
  font-size: 40px;
  font-weight: bold;
  cursor: pointer;
  z-index: 1001;
}

.modal-header {
  text-align: center;
  margin-bottom: 30px;
}

.modal-header h2 {
  font-size: 2.2rem;
  color: var(--primary-color);
  margin-bottom: 10px;
}

.modal-body {
  display: flex;
  gap: 30px;
  justify-content: center;
}

.modal-image-box {
  flex: 1;
  text-align: center;
}

.modal-image-box p {
  font-weight: 700;
  color: var(--text-sub);
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.modal-image-box img {
  width: 100%;
  height: auto;
  max-height: 600px;
  object-fit: cover;
  border-radius: 20px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* 모바일 모달 레이아웃 */
@media (max-width: 768px) {
  .modal-body {
    flex-direction: column;
  }
  .modal-content {
    margin: 20px auto;
    padding: 20px;
  }
}

footer {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-sub);
  font-size: 0.95rem;
}

.admin-btn {
  background: none;
  border: 1px solid #e0d5d0;
  color: #c7b7b1;
  padding: 6px 14px;
  border-radius: 6px;
  cursor: pointer;
  margin-top: 25px;
  font-size: 0.75rem;
}