/* Reset and Base Styles */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  /* Cute Pastel Storybook Palette (R6) */
  --bg-gradient: linear-gradient(135deg, #FFFDF9 0%, #FFF3EA 40%, #E8F4F8 100%);
  --text-primary: #2D3142;
  --text-secondary: #5C677D;
  --glass-bg: rgba(255, 255, 255, 0.78);
  --glass-border: rgba(255, 255, 255, 0.85);
  --glass-highlight: rgba(255, 255, 255, 0.95);
  
  /* Pastel Accent Tokens */
  --accent-blue: #A2D2FF;
  --accent-blue-dark: #3A86C8;
  --accent-green: #B7E4C7;
  --accent-green-dark: #2D6A4F;
  --accent-purple: #CDB4DB;
  --accent-coral: #FF7096;
  --accent-coral-soft: #FF8FA3;
  --accent-yellow: #FFE066;
  --accent-cream: #FFFDF9;
  
  --shadow-main: 0 12px 36px 0 rgba(140, 150, 170, 0.22);
  --shadow-subtle: 0 4px 16px 0 rgba(140, 150, 170, 0.12);
  --shadow-glow: 0 0 20px rgba(162, 210, 255, 0.4);
}

body {
  font-family: 'Quicksand', 'Noto Sans TC', sans-serif;
  background: var(--bg-gradient);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
  user-select: none;
  -webkit-font-smoothing: antialiased;
}

/* Immersive 3D Canvas Background */
#canvas-container {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
}

/* Header UI */
#main-header {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  z-index: 10;
  pointer-events: none; /* Let clicks pass through to Three.js unless over button */
}

.logo-area {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--glass-bg);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px);
  padding: 8px 20px;
  border-radius: 50px;
  border: 1.5px solid var(--glass-border);
  box-shadow: var(--shadow-subtle);
  pointer-events: auto;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.logo-area:hover {
  transform: scale(1.03);
}

.logo-icon {
  font-size: 2rem;
  animation: float-logo 3s ease-in-out infinite;
}

.logo-text-group {
  display: flex;
  flex-direction: column;
}

#site-title {
  font-size: 1.5rem;
  font-weight: 800;
  background: linear-gradient(90deg, #FF7096, #A2D2FF);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: 0.5px;
  line-height: 1.1;
}

.site-subtitle {
  font-size: 0.72rem;
  color: var(--text-secondary);
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Header Status Group: Live Clock & Weather (R7, R8) */
.header-status-group {
  display: flex;
  align-items: center;
  gap: 12px;
  pointer-events: auto;
}

.header-status-badge {
  background: var(--glass-bg);
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px);
  border: 1.5px solid var(--glass-border);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-primary);
  box-shadow: var(--shadow-subtle);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.header-clock {
  font-feature-settings: "tnum";
  font-variant-numeric: tabular-nums;
  border-color: rgba(162, 210, 255, 0.6);
}

.header-weather {
  cursor: pointer;
  border-color: rgba(255, 224, 102, 0.6);
}

.header-weather:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 6px 20px rgba(255, 224, 102, 0.4);
  background: var(--glass-highlight);
}

.nav-controls {
  display: flex;
  gap: 12px;
  pointer-events: auto;
}

/* Buttons with Pastel Storybook Jelly Spring Micro-interactions */
.btn-glass {
  background: var(--glass-bg);
  border: 1.5px solid var(--glass-border);
  color: var(--text-primary);
  padding: 10px 18px;
  border-radius: 50px;
  font-size: 0.92rem;
  font-weight: 700;
  cursor: pointer;
  backdrop-filter: blur(12px) saturate(180%);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  gap: 8px;
  transition: all 0.28s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: var(--shadow-subtle);
}

.btn-glass:hover {
  background: var(--glass-highlight);
  border-color: var(--accent-blue);
  transform: translateY(-3px) scale(1.04);
  box-shadow: 0 8px 24px rgba(162, 210, 255, 0.35);
  color: var(--accent-blue-dark);
}

.btn-glass:active {
  transform: translateY(1px) scale(0.97);
}

.btn-highlight {
  background: linear-gradient(135deg, rgba(255, 143, 163, 0.25) 0%, rgba(162, 210, 255, 0.35) 100%);
  border-color: var(--accent-coral-soft);
  color: #D90429;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-coral-soft) 0%, #FF5A79 100%);
  color: #fff;
  border: none;
  padding: 12px 24px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
  box-shadow: 0 6px 18px rgba(255, 112, 150, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px) scale(1.05);
  box-shadow: 0 8px 25px rgba(255, 112, 150, 0.55);
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-secondary {
  background: rgba(162, 210, 255, 0.2);
  border: 1.5px solid var(--accent-blue);
  color: var(--text-primary);
  padding: 8px 18px;
  border-radius: 20px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.btn-secondary:hover {
  background: var(--accent-blue);
  color: #fff;
  transform: translateY(-2px);
}

.btn-danger {
  background: linear-gradient(135deg, #FF7096 0%, #D90429 100%);
  color: #fff;
  border: none;
  padding: 10px 20px;
  border-radius: 20px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 4px 12px rgba(217, 4, 41, 0.3);
}

.btn-danger:hover {
  transform: translateY(-2px) scale(1.03);
  box-shadow: 0 6px 16px rgba(217, 4, 41, 0.45);
}

/* Translucent Upload Date Tag (R7) */
.card-date-tag {
  display: inline-block;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(162, 210, 255, 0.5);
  border-radius: 12px;
  padding: 3px 10px;
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--text-secondary);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

/* Modals */
.modal-backdrop {
  position: absolute;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: rgba(45, 49, 66, 0.4);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 100;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: opacity 0.35s ease;
}

.modal-card {
  background: var(--glass-bg);
  border: 2px solid var(--glass-border);
  border-radius: 24px;
  padding: 35px;
  width: 420px;
  max-width: 90%;
  box-shadow: var(--shadow-main);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px);
  position: relative;
  text-align: center;
  transform: scale(1);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-close {
  position: absolute;
  top: 15px;
  right: 20px;
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 36px;
  height: 36px;
  color: var(--text-secondary);
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-close:hover {
  background: var(--accent-coral);
  color: #fff;
  transform: scale(1.1) rotate(90deg);
}

.modal-card h3 {
  font-size: 1.4rem;
  margin-bottom: 10px;
  color: var(--text-primary);
}

.modal-card p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  margin-bottom: 25px;
}

/* Dedicated Kids Gallery Modal (R2, R7) */
.gallery-modal-card {
  background: rgba(255, 253, 249, 0.92);
  border: 3px solid var(--accent-blue);
  border-radius: 28px;
  padding: 32px;
  width: 960px;
  height: 640px;
  max-width: 94%;
  max-height: 90%;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.15);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  display: flex;
  flex-direction: column;
  transform: scale(1);
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.gallery-modal-header {
  margin-bottom: 16px;
  text-align: left;
}

.gallery-modal-header h2 {
  font-size: 1.6rem;
  color: var(--text-primary);
  font-weight: 800;
  margin-bottom: 4px;
}

.gallery-modal-header p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.gallery-filters {
  display: flex;
  gap: 10px;
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.filter-tag {
  background: rgba(255, 255, 255, 0.8);
  border: 1.5px solid var(--glass-border);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.filter-tag.active,
.filter-tag:hover {
  background: var(--accent-blue);
  color: #fff;
  border-color: var(--accent-blue);
  transform: translateY(-2px);
}

.kids-gallery-grid-container {
  flex: 1;
  overflow-y: auto;
  padding-right: 8px;
}

.kids-gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}

.gallery-loading {
  text-align: center;
  color: var(--text-secondary);
  font-size: 1rem;
  grid-column: 1 / -1;
  padding: 40px;
}

.gallery-card {
  background: #FFFDF9;
  border: 2px solid rgba(162, 210, 255, 0.4);
  border-radius: 20px;
  padding: 16px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
  position: relative;
}

.gallery-card:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: 0 14px 30px rgba(162, 210, 255, 0.35);
  border-color: var(--accent-coral-soft);
}

.gallery-card-img-wrapper {
  width: 100%;
  height: 140px;
  border-radius: 14px;
  background: #F4F6F9;
  background-image: linear-gradient(45deg, #E9ECEF 25%, transparent 25%),
                    linear-gradient(-45deg, #E9ECEF 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, #E9ECEF 75%),
                    linear-gradient(-45deg, transparent 75%, #E9ECEF 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.gallery-card-img-wrapper img {
  max-width: 90%;
  max-height: 90%;
  object-fit: contain;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.12));
  transition: transform 0.3s ease;
}

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

.gallery-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.gallery-card-name {
  font-size: 1.05rem;
  font-weight: 800;
  color: var(--text-primary);
}

.gallery-card-style-badge {
  font-size: 0.72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 10px;
  background: rgba(183, 228, 199, 0.4);
  color: var(--accent-green-dark);
}

.gallery-card-story {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.gallery-card-actions {
  display: flex;
  gap: 8px;
  margin-top: auto;
}

.gallery-card-actions button {
  flex: 1;
  padding: 8px 10px;
  font-size: 0.85rem;
  font-weight: 700;
  border-radius: 12px;
}

.input-group {
  margin-bottom: 20px;
  text-align: left;
}

.input-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.input-group input[type="password"],
.input-group input[type="text"],
.input-group textarea,
select {
  width: 100%;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.9);
  border: 1.5px solid var(--glass-border);
  border-radius: 16px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  outline: none;
  transition: all 0.3s;
}

.input-group input:focus,
.input-group textarea:focus,
select:focus {
  border-color: var(--accent-coral);
  background: #FFF;
  box-shadow: 0 0 0 3px rgba(255, 112, 150, 0.2);
}

.hint-text {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 5px;
}

/* Modal animation state */
.modal-hidden {
  opacity: 0;
  pointer-events: none;
}

.modal-hidden .modal-card,
.modal-hidden .gallery-modal-card,
.modal-hidden .storybook-card {
  transform: scale(0.9);
}

/* Storybook Styles */
.storybook-card {
  background: radial-gradient(circle at center, #FFFDF9 0%, #FFF3EA 100%);
  border: 4px solid var(--accent-purple);
  border-radius: 30px;
  width: 900px;
  height: 600px;
  max-width: 95%;
  max-height: 90%;
  box-shadow: 0 24px 60px rgba(0,0,0,0.18);
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.book-container {
  width: 100%;
  height: 100%;
  display: flex;
  position: relative;
}

.book-cover {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, #FFE066 0%, #FF8FA3 100%);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  color: #fff;
  z-index: 2;
  transition: opacity 0.5s ease;
  padding: 40px;
}

.book-cover h2 {
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 12px;
  text-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.book-cover p {
  font-size: 1.2rem;
  margin-bottom: 30px;
  opacity: 0.95;
}

.book-page {
  width: 100%;
  height: 100%;
  display: flex;
  padding: 30px;
}

.page-layout {
  display: flex;
  width: 100%;
  height: 100%;
  gap: 30px;
}

.page-visual {
  flex: 1.2;
  background: rgba(255, 255, 255, 0.8);
  border: 2px dashed var(--accent-purple);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-subtle);
}

#storybook-3d-renderer {
  width: 100%;
  height: 100%;
}

.page-text {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px 0;
}

#storybook-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 15px;
}

#storybook-desc {
  font-size: 1.15rem;
  line-height: 1.7;
  color: var(--text-secondary);
  flex-grow: 1;
}

.page-navigation {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.page-hidden {
  display: none !important;
}

/* Character Inspector Panel (R3, R7) */
#inspector-panel {
  position: absolute;
  bottom: 30px;
  right: 30px;
  z-index: 20;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  transform: translateY(0);
}

.inspector-hidden {
  transform: translateY(120%) scale(0.9) !important;
  opacity: 0;
  pointer-events: none;
}

.inspector-card {
  background: var(--glass-bg);
  border: 2.5px solid var(--glass-border);
  border-radius: 24px;
  padding: 20px;
  width: 350px;
  box-shadow: var(--shadow-main);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.inspector-close {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255,255,255,0.7);
  border: 1px solid var(--glass-border);
  border-radius: 50%;
  width: 28px;
  height: 28px;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: all 0.2s;
}

.inspector-close:hover {
  background: var(--accent-coral);
  color: #fff;
  transform: scale(1.1);
}

.inspector-top-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-right: 32px;
}

#inspect-name {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.inspector-viewer-container {
  width: 100%;
  height: 170px;
  background: #FFFDF9;
  border: 1.5px solid rgba(162, 210, 255, 0.4);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: inset 0 2px 8px rgba(0,0,0,0.04);
  cursor: grab;
}

.inspector-viewer-container:active {
  cursor: grabbing;
}

.viewer-drag-hint {
  font-size: 0.74rem;
  color: var(--text-secondary);
  text-align: center;
}

.story-scroll {
  max-height: 70px;
  overflow-y: auto;
  font-size: 0.86rem;
  line-height: 1.45;
  color: var(--text-secondary);
  padding-right: 4px;
}

.inspect-actions {
  display: flex;
  gap: 8px;
  margin-top: 4px;
}

.inspect-actions button {
  flex: 1;
  padding: 9px 12px;
  font-size: 0.88rem;
  font-weight: 700;
  border-radius: 14px;
}

/* Workshop Panel (Left Sidebar) */
#workshop-panel {
  position: absolute;
  top: 0;
  left: 0;
  width: 380px;
  height: 100vh;
  background: rgba(255, 253, 249, 0.95);
  border-right: 2px solid var(--glass-border);
  box-shadow: 8px 0 32px rgba(0,0,0,0.08);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: 30;
  display: flex;
  flex-direction: column;
  transition: transform 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.workshop-collapsed {
  transform: translateX(-100%);
}

.workshop-header {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1.5px solid rgba(162, 210, 255, 0.3);
}

.workshop-header h2 {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text-primary);
}

#btn-workshop-toggle {
  background: var(--accent-coral-soft);
  border: none;
  color: #fff;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(255, 143, 163, 0.4);
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

#btn-workshop-toggle:hover {
  transform: scale(1.1);
}

.workshop-content {
  flex: 1;
  overflow-y: auto;
  padding: 20px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.panel-section {
  background: #FFF;
  border: 1.5px solid rgba(162, 210, 255, 0.3);
  border-radius: 18px;
  padding: 16px;
  box-shadow: var(--shadow-subtle);
}

.panel-section h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.upload-dropzone {
  border: 2.5px dashed var(--accent-coral-soft);
  border-radius: 16px;
  padding: 24px 16px;
  text-align: center;
  background: rgba(255, 143, 163, 0.05);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
  background: rgba(255, 143, 163, 0.12);
  border-color: #FF5A79;
  transform: scale(1.02);
}

.dropzone-prompt .icon-upload {
  font-size: 2.4rem;
  display: block;
  margin-bottom: 6px;
}

.dropzone-prompt p {
  font-weight: 700;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.dropzone-sub {
  font-size: 0.78rem;
  color: var(--text-secondary);
  display: block;
  margin-top: 4px;
}

.file-hidden {
  display: none;
}

.canvas-wrapper {
  width: 100%;
  height: 180px;
  border-radius: 14px;
  overflow: hidden;
  border: 1.5px solid rgba(162, 210, 255, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
}

.checkerboard-bg {
  background-color: #FAFAFA;
  background-image: linear-gradient(45deg, #ECEFF1 25%, transparent 25%),
                    linear-gradient(-45deg, #ECEFF1 25%, transparent 25%),
                    linear-gradient(45deg, transparent 75%, #ECEFF1 75%),
                    linear-gradient(-45deg, transparent 75%, #ECEFF1 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0px;
}

#crop-canvas {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.control-group {
  margin-bottom: 14px;
}

.control-group label {
  display: flex;
  justify-content: space-between;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.control-group input[type="range"] {
  width: 100%;
  accent-color: var(--accent-coral);
}

.value-display {
  color: var(--accent-coral);
  font-weight: 800;
}

.live-preview-container {
  width: 100%;
  height: 140px;
  border-radius: 14px;
  background: #FFF;
  border: 1.5px solid rgba(162, 210, 255, 0.4);
  overflow: hidden;
  margin-top: 10px;
}

#live-3d-preview {
  width: 100%;
  height: 100%;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(75px, 1fr));
  gap: 10px;
  max-height: 160px;
  overflow-y: auto;
}

.gallery-item {
  position: relative;
  background: #FFF;
  border: 1.5px solid rgba(162, 210, 255, 0.4);
  border-radius: 12px;
  padding: 6px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.gallery-item:hover {
  transform: translateY(-2px) scale(1.05);
  border-color: var(--accent-coral);
}

.gallery-item img {
  width: 100%;
  height: 50px;
  object-fit: contain;
}

.gallery-item-name {
  font-size: 0.72rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-top: 4px;
}

.gallery-item-delete {
  position: absolute;
  top: -4px;
  right: -4px;
  background: #D90429;
  color: #fff;
  border: none;
  border-radius: 50%;
  width: 18px;
  height: 18px;
  font-size: 0.65rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Toast */
#toast {
  position: absolute;
  top: 90px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(45, 49, 66, 0.88);
  color: #fff;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 700;
  z-index: 120;
  box-shadow: 0 8px 24px rgba(0,0,0,0.18);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: all 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.toast-hidden {
  opacity: 0;
  transform: translateX(-50%) translateY(-20px) !important;
  pointer-events: none;
}

#instruction-hint {
  position: absolute;
  bottom: 24px;
  left: 28px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-secondary);
  box-shadow: var(--shadow-subtle);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  z-index: 10;
  pointer-events: none;
}

.hidden {
  display: none !important;
}

/* Floating Logo Animation */
@keyframes float-logo {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-4px) rotate(6deg); }
}

/* Zen Mode override */
body.zen-mode #main-header,
body.zen-mode #workshop-panel,
body.zen-mode #inspector-panel,
body.zen-mode #instruction-hint,
body.zen-mode .modal-backdrop {
  display: none !important;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
  #main-header {
    padding: 12px 16px;
    flex-wrap: wrap;
    gap: 10px;
  }
  
  .header-status-group {
    order: 3;
    width: 100%;
    justify-content: center;
  }
  
  #workshop-panel {
    width: 100vw;
  }
  
  #inspector-panel {
    bottom: 12px;
    right: 12px;
    left: 12px;
    width: auto;
  }
  
  .inspector-card {
    width: 100%;
  }
}