/* ==========================================================================
   Naomi Style - Curated Floral Lavender Aesthetic Gallery Style
   ========================================================================== */

:root {
  /* Color Palette - Lavender & Romantic Pastels */
  --lavender-deep: #4A3E56;
  --lavender-main: #7B6894;
  --lavender-accent: #9C82B3;
  --lavender-soft: #CBBBDC;
  --lavender-light: #F4EFF9;
  
  --text-dark: #2B2533;
  --text-muted: #6B6275;
  --text-light: #8E8599;

  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-shadow: 0 12px 36px rgba(74, 62, 86, 0.12);
  
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  
  --transition-smooth: cubic-bezier(0.25, 1, 0.5, 1);
}

/* Reset & Base Setup */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Montserrat', 'Noto Sans JP', sans-serif;
  color: var(--text-dark);
  background-color: #F8F5FB;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   Ambient Floral Background Layers
   -------------------------------------------------------------------------- */
.bg-layer {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background-image: url('bg_lavender_flowers.jpg');
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  z-index: -2;
  opacity: 0.95;
  transform: scale(1.02);
  transition: transform 10s ease-out;
}

.bg-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(circle at 50% 30%, rgba(248, 245, 251, 0.25) 0%, rgba(244, 239, 249, 0.65) 100%);
  backdrop-filter: blur(1.5px);
  z-index: -1;
}

/* --------------------------------------------------------------------------
   App Layout Container
   -------------------------------------------------------------------------- */
.app-container {
  max-width: 1440px;
  margin: 0 auto;
  padding: 40px 24px 80px;
  display: flex;
  flex-direction: column;
  gap: 36px;
}

/* --------------------------------------------------------------------------
   Site Header
   -------------------------------------------------------------------------- */
.site-header {
  text-align: center;
  padding: 40px 20px 20px;
}

.header-inner {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 36px 60px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  position: relative;
  overflow: hidden;
}

.header-inner::before {
  content: '';
  position: absolute;
  top: 0;
  left: -50%;
  width: 200%;
  height: 3px;
  background: linear-gradient(90deg, transparent, #B39DDB, #F4B6C2, #8DB596, transparent);
}

.header-tagline {
  font-family: 'Montserrat', sans-serif;
  font-size: 0.75rem;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--lavender-main);
  font-weight: 600;
}

.site-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: clamp(3rem, 7vw, 4.8rem);
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--lavender-deep);
  line-height: 1.05;
  background: linear-gradient(135deg, #3A2E44 0%, #7B6894 60%, #9C82B3 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 4px 20px rgba(123, 104, 148, 0.15);
}

.site-subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 300;
  max-width: 500px;
  letter-spacing: 0.5px;
}

.header-stats {
  display: flex;
  gap: 12px;
  margin-top: 10px;
}

.stat-badge {
  font-size: 0.8rem;
  font-weight: 500;
  padding: 6px 14px;
  background: rgba(255, 255, 255, 0.85);
  color: var(--lavender-main);
  border-radius: 20px;
  border: 1px solid rgba(123, 104, 148, 0.2);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* --------------------------------------------------------------------------
   Controls & Filter Section
   -------------------------------------------------------------------------- */
.controls-section {
  display: flex;
  flex-direction: column;
  gap: 20px;
  align-items: center;
}

.filter-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  padding: 12px 18px;
  border-radius: 40px;
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  max-width: 100%;
}

.filter-tab {
  background: transparent;
  border: 1px solid transparent;
  padding: 8px 16px;
  border-radius: 30px;
  font-family: inherit;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.3s var(--transition-smooth);
}

.filter-tab:hover {
  background: rgba(255, 255, 255, 0.7);
  color: var(--lavender-deep);
  transform: translateY(-1px);
}

.filter-tab.active {
  background: #FFFFFF;
  color: var(--lavender-deep);
  font-weight: 600;
  border-color: rgba(156, 130, 179, 0.4);
  box-shadow: 0 4px 14px rgba(123, 104, 148, 0.15);
}

.tab-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
  box-shadow: 0 0 4px rgba(0,0,0,0.1);
  flex-shrink: 0;
}

.dot-all {
  background: linear-gradient(135deg, #B39DDB, #F4B6C2, #8DB596);
}

.tab-count {
  font-size: 0.75rem;
  background: rgba(123, 104, 148, 0.1);
  color: var(--lavender-main);
  padding: 2px 7px;
  border-radius: 10px;
  font-weight: 600;
}

.filter-tab.active .tab-count {
  background: var(--lavender-main);
  color: #FFFFFF;
}

/* Toolbar: Search & Sort */
.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 16px;
  width: 100%;
  max-width: 800px;
}

.search-box {
  position: relative;
  flex: 1;
  min-width: 260px;
  max-width: 440px;
}

.search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--lavender-accent);
  font-size: 0.9rem;
}

.search-box input {
  width: 100%;
  padding: 10px 40px 10px 42px;
  border-radius: 30px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  font-family: inherit;
  font-size: 0.88rem;
  color: var(--text-dark);
  outline: none;
  box-shadow: 0 4px 16px rgba(74, 62, 86, 0.05);
  transition: all 0.3s ease;
}

.search-box input:focus {
  background: #FFFFFF;
  border-color: var(--lavender-accent);
  box-shadow: 0 4px 20px rgba(156, 130, 179, 0.25);
}

.clear-btn {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 4px;
}

.clear-btn:hover {
  color: var(--lavender-deep);
}

.sort-box {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

.sort-box select {
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid var(--glass-border);
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  font-family: inherit;
  font-size: 0.85rem;
  color: var(--lavender-deep);
  font-weight: 600;
  outline: none;
  cursor: pointer;
  box-shadow: 0 4px 12px rgba(74, 62, 86, 0.05);
}

.sort-box select:focus {
  background: #FFFFFF;
  border-color: var(--lavender-accent);
}

/* --------------------------------------------------------------------------
   Gallery Grid & Cards
   -------------------------------------------------------------------------- */
.gallery-main {
  min-height: 400px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
  width: 100%;
}

.gallery-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  cursor: pointer;
  transition: transform 0.4s var(--transition-smooth), box-shadow 0.4s var(--transition-smooth), border-color 0.3s ease;
  display: flex;
  flex-direction: column;
}

.gallery-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: 0 20px 40px rgba(74, 62, 86, 0.2);
  border-color: rgba(156, 130, 179, 0.6);
  background: var(--glass-bg-hover);
}

.card-image-wrapper {
  position: relative;
  width: 100%;
  padding-top: 110%; /* Harmonious Aspect Ratio */
  overflow: hidden;
  background: #EAE3F2;
}

.card-image {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s var(--transition-smooth);
}

.gallery-card:hover .card-image {
  transform: scale(1.08);
}

/* Hover Overlay Elements */
.card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(43, 37, 51, 0.75) 0%, rgba(43, 37, 51, 0.2) 50%, transparent 100%);
  opacity: 0;
  transition: opacity 0.35s ease;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 16px;
}

.gallery-card:hover .card-overlay {
  opacity: 1;
}

.zoom-badge {
  align-self: flex-end;
  width: 36px;
  height: 36px;
  background: rgba(255, 255, 255, 0.9);
  color: var(--lavender-deep);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.15);
  transform: translateY(-10px) scale(0.8);
  transition: transform 0.35s var(--transition-smooth);
}

.gallery-card:hover .zoom-badge {
  transform: translateY(0) scale(1);
}

.card-meta-bottom {
  transform: translateY(10px);
  transition: transform 0.35s var(--transition-smooth);
}

.gallery-card:hover .card-meta-bottom {
  transform: translateY(0);
}

.card-group-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
  padding: 3px 8px;
  border-radius: 12px;
  color: #FFFFFF;
  margin-bottom: 6px;
}

.card-title {
  color: #FFFFFF;
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  text-shadow: 0 2px 4px rgba(0,0,0,0.4);
}

.card-color-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.5);
}

.card-color-indicator {
  display: flex;
  align-items: center;
  gap: 8px;
}

.color-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.color-hex-label {
  font-size: 0.75rem;
  font-family: monospace;
  color: var(--text-muted);
  font-weight: 600;
}

.group-name-mini {
  font-size: 0.72rem;
  color: var(--text-light);
  font-weight: 500;
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  background: var(--glass-bg);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  max-width: 500px;
  margin: 40px auto;
}

.empty-icon {
  font-size: 3rem;
  color: var(--lavender-soft);
  margin-bottom: 16px;
}

.empty-state h3 {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.8rem;
  color: var(--lavender-deep);
  margin-bottom: 8px;
}

.empty-state p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.reset-filter-btn {
  background: var(--lavender-main);
  color: #FFFFFF;
  border: none;
  padding: 10px 24px;
  border-radius: 30px;
  font-family: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}

.reset-filter-btn:hover {
  background: var(--lavender-deep);
  transform: translateY(-2px);
}

/* --------------------------------------------------------------------------
   Lightbox Modal
   -------------------------------------------------------------------------- */
.lightbox-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s var(--transition-smooth);
}

.lightbox-modal.active {
  opacity: 1;
  pointer-events: auto;
}

.lightbox-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(30, 24, 38, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.lightbox-content {
  position: relative;
  z-index: 1001;
  width: auto;
  max-width: min(94vw, 1100px);
  max-height: 94vh;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(255, 255, 255, 0.9);
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.4);
  display: flex;
  flex-direction: column;
  overflow: hidden;
  margin: auto;
  transform: scale(0.92);
  transition: transform 0.35s var(--transition-smooth);
}

.lightbox-modal.active .lightbox-content {
  transform: scale(1);
}

/* Modal Close & Nav Buttons */
.lightbox-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 1010;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(123, 104, 148, 0.2);
  color: var(--lavender-deep);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.lightbox-close:hover {
  background: #FFFFFF;
  color: #D9534F;
  transform: rotate(90deg);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 1005;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.85);
  border: 1px solid rgba(123, 104, 148, 0.2);
  color: var(--lavender-deep);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  box-shadow: 0 6px 16px rgba(0,0,0,0.15);
}

.lightbox-nav:hover {
  background: #FFFFFF;
  color: var(--lavender-accent);
  transform: translateY(-50%) scale(1.1);
}

.nav-prev { left: 20px; }
.nav-next { right: 20px; }

.lightbox-media-wrapper {
  flex: 1 1 auto;
  min-height: 0;
  max-height: calc(94vh - 85px);
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(234, 227, 242, 0.4);
  padding: 20px 50px;
  position: relative;
  overflow: hidden;
}

.lightbox-image {
  max-width: 100%;
  max-height: calc(94vh - 120px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
  box-shadow: 0 10px 30px rgba(0,0,0,0.18);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.lightbox-meta {
  flex-shrink: 0;
  padding: 14px 24px;
  background: #FFFFFF;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  border-top: 1px solid rgba(123, 104, 148, 0.12);
}

/* Portrait specific optimizations */
.lightbox-content.is-portrait {
  width: fit-content;
  max-width: 90vw;
}

.lightbox-content.is-portrait .lightbox-media-wrapper {
  padding: 16px 60px;
}

.lightbox-content.is-portrait .lightbox-image {
  max-height: calc(94vh - 110px);
}

.lightbox-header {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.lightbox-group-badge {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--lavender-main);
}

.lightbox-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--lavender-deep);
  line-height: 1.2;
}

.lightbox-color-info {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--lavender-light);
  padding: 8px 16px;
  border-radius: 30px;
  border: 1px solid rgba(156, 130, 179, 0.2);
}

.color-chip {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid #FFFFFF;
  box-shadow: 0 2px 6px rgba(0,0,0,0.15);
}

.color-details {
  display: flex;
  flex-direction: column;
}

.color-hex {
  font-family: monospace;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--lavender-deep);
}

.color-hsl {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.lightbox-counter {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  letter-spacing: 1px;
}

/* --------------------------------------------------------------------------
   Site Footer
   -------------------------------------------------------------------------- */
.site-footer {
  text-align: center;
  padding: 30px 20px;
  margin-top: 20px;
}

.footer-content {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  padding: 20px 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--glass-border);
}

.footer-title {
  font-family: 'Cormorant Garamond', serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--lavender-deep);
}

.footer-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.copyright {
  font-size: 0.72rem;
  color: var(--text-light);
  margin-top: 6px;
}

/* --------------------------------------------------------------------------
   Responsive Design Adjustments
   -------------------------------------------------------------------------- */
@media (max-width: 768px) {
  .app-container {
    padding: 20px 14px 40px;
    gap: 24px;
  }
  
  .header-inner {
    padding: 24px 20px;
  }
  
  .site-title {
    font-size: 3rem;
  }
  
  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 14px;
  }
  
  .card-color-bar {
    padding: 8px 10px;
  }

  .nav-prev { left: 10px; }
  .nav-next { right: 10px; }

  .lightbox-content {
    width: 96%;
    max-height: 95vh;
  }

  .lightbox-meta {
    padding: 14px 16px;
    flex-direction: column;
    align-items: flex-start;
  }
}