/* ============================================
   레몬파이와 B컷 - 리스트 형식 네비게이션
   ============================================ */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #8b5e3c;
  --color-light: #d4a373;
  --color-bg: #faf7f2;
  --color-white: #fff;
  --color-text: #3a2e28;
  --color-border: #e8ddd3;
  --color-tag-bg: #fdf5ec;
}

body {
  background: var(--color-bg);
  font-family: 'Noto Sans KR', sans-serif;
  color: var(--color-text);
  min-height: 100vh;
  overflow-y: scroll;
  scrollbar-width: none;
}

::-webkit-scrollbar {
  display: none !important;
}

/* ============================================
   헤더
   ============================================ */

.site-header {
  background: var(--color-white);
  border-bottom: 2px solid var(--color-border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  height: 70px;
}

.site-logo {
  font-size: 24px;
  font-weight: 900;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.site-logo span {
  color: var(--color-light);
}

/* ============================================
   메인 레이아웃
   ============================================ */

.main-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

/* ============================================
   네비게이션 (폴더 리스트)
   ============================================ */

.navigation {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 16px 12px;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s;
  font-weight: 600;
  font-size: 13px;
  min-height: 100px;
  position: relative;
}

.nav-item:hover {
  border-color: var(--color-primary);
  background: var(--color-tag-bg);
  transform: translateX(4px);
}

.nav-item.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

.nav-item-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.nav-emoji {
  font-size: 32px;
}

.nav-name {
  flex: 1;
  text-align: center;
  font-size: 12px;
}

.nav-count {
  font-size: 12px;
  opacity: 0.7;
  font-weight: 500;
}

.nav-toggle {
  width: 20px;
  text-align: center;
  font-size: 12px;
  transition: transform 0.2s;
  position: absolute;
  top: 4px;
  right: 4px;
}

.nav-toggle.open {
  transform: rotate(90deg);
}

/* 서브항목 */
.nav-subitems {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 10px;
  grid-column: 1 / -1;
  padding: 12px 0;
}

.nav-subitems.open {
  display: flex;
}

.nav-subitem {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 12px 10px;
  background: rgba(139, 94, 60, 0.05);
  border: 1px solid rgba(139, 94, 60, 0.15);
  border-radius: 6px;
  cursor: pointer;
  font-size: 12px;
  font-weight: 600;
  transition: all 0.2s;
  min-height: 80px;
}

.nav-subitem:hover {
  background: rgba(139, 94, 60, 0.12);
  border-color: var(--color-primary);
}

.nav-subitem.active {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
}

/* ============================================
   갤러리
   ============================================ */

.gallery-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.gallery-header {
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-border);
}

.gallery-header-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-primary);
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 16px;
  min-height: 200px;
}

/* 카드 */
.card {
  background: var(--color-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
  cursor: pointer;
  border: 1px solid #f0ebe3;
  transition: all 0.3s;
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 24px rgba(0, 0, 0, 0.15);
}

.card-thumb {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  display: block;
}

.card-body {
  padding: 12px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.card-tags {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  margin-bottom: 8px;
}

.card-tag {
  display: inline-block;
  background: var(--color-tag-bg);
  color: var(--color-primary);
  font-size: 10px;
  font-weight: 700;
  padding: 3px 6px;
  border-radius: 4px;
  border: 1px solid #e8d9c8;
}

.card-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  word-break: break-word;
}

/* 빈 상태 */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: #b0998a;
  font-size: 16px;
  grid-column: 1 / -1;
}

/* ============================================
   라이트박스
   ============================================ */

.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.9);
  z-index: 9999;
  align-items: center;
  justify-content: center;
  padding: 24px;
  backdrop-filter: blur(4px);
}

.lightbox.open {
  display: flex;
}

.lightbox-inner {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: 12px;
  object-fit: contain;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.lightbox-title {
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  text-align: center;
}

.lightbox-close {
  position: fixed;
  top: 20px;
  right: 24px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  color: #fff;
  font-size: 32px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s;
  font-family: inherit;
}

.lightbox-close:hover {
  background: rgba(255, 255, 255, 0.3);
  transform: scale(1.1);
}

/* ============================================
   커스텀 스크롤바
   ============================================ */

.scrollbar-track,
.scrollbar-thumb {
  display: none;
}

@media (min-width: 1024px) {
  .scrollbar-track {
    display: block;
    position: fixed;
    right: 0;
    top: 0;
    width: 70px;
    height: 100vh;
    background: transparent;
    z-index: 1000;
    pointer-events: none;
  }

  .scrollbar-thumb {
    display: flex;
    position: fixed;
    right: 5px;
    width: 60px;
    height: 60px;
    font-size: 50px;
    align-items: center;
    justify-content: center;
    cursor: grab;
    z-index: 1001;
    user-select: none;
    transition: transform 0.1s;
    pointer-events: auto;
    line-height: 1;
  }

  .scrollbar-thumb:hover {
    transform: scale(1.1);
  }

  .scrollbar-thumb:active {
    cursor: grabbing;
  }
}

/* ============================================
   반응형
   ============================================ */

@media (max-width: 768px) {
  .main-wrap {
    padding: 16px;
  }

  .navigation {
    grid-template-columns: repeat(4, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
  }

  .nav-item {
    min-height: 80px;
    padding: 10px 6px;
    font-size: 11px;
  }

  .nav-emoji {
    font-size: 24px;
  }

  .nav-name {
    font-size: 11px;
  }

  .nav-count {
    font-size: 10px;
  }

  .card-title {
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .header-inner {
    height: 60px;
  }

  .site-logo {
    font-size: 20px;
  }

  .main-wrap {
    padding: 12px;
    gap: 16px;
  }

  .navigation {
    grid-template-columns: repeat(3, 1fr);
  }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
  }

  .nav-item {
    min-height: 70px;
    padding: 8px 4px;
    font-size: 10px;
  }

  .nav-emoji {
    font-size: 22px;
  }

  .nav-name {
    font-size: 10px;
  }

  .nav-count {
    font-size: 9px;
  }

  .card {
    border-radius: 8px;
  }

  .card-body {
    padding: 10px;
  }
}

/* ============================================
   폴더 카드 그리드 (홈 화면)
   ============================================ */

.navigation {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 12px;
}

.folder-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 20px;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: 12px;
  cursor: pointer;
  transition: all 0.2s;
  min-height: 120px;
  text-align: center;
}

.folder-card:hover {
  border-color: var(--color-primary);
  background: var(--color-tag-bg);
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
}

.folder-card-emoji {
  font-size: 32px;
  margin-bottom: 8px;
}

.folder-card-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.3;
  word-break: break-word;
}

/* 서브폴더 리스트 (리스트 뷰로 돌아감) */
.navigation.sublist {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.back-btn {
  background: rgba(139, 94, 60, 0.1) !important;
  border-color: rgba(139, 94, 60, 0.2) !important;
}

.back-btn:hover {
  background: rgba(139, 94, 60, 0.15) !important;
  border-color: var(--color-primary) !important;
}

/* ============================================
   반응형 - 폴더 그리드
   ============================================ */

@media (max-width: 1024px) {
  .navigation {
    grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
    gap: 10px;
  }

  .folder-card {
    padding: 16px;
    min-height: 110px;
  }

  .folder-card-emoji {
    font-size: 28px;
  }

  .folder-card-name {
    font-size: 12px;
  }
}

@media (max-width: 768px) {
  .navigation {
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
  }

  .folder-card {
    padding: 12px;
    min-height: 100px;
  }

  .folder-card-emoji {
    font-size: 24px;
    margin-bottom: 6px;
  }

  .folder-card-name {
    font-size: 11px;
  }
}

@media (max-width: 480px) {
  .navigation {
    grid-template-columns: repeat(5, 1fr);
    gap: 6px;
  }

  .folder-card {
    padding: 10px;
    min-height: 90px;
    border-radius: 8px;
  }

  .folder-card-emoji {
    font-size: 20px;
    margin-bottom: 4px;
  }

  .folder-card-name {
    font-size: 10px;
  }
}