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

:root {
  --bg-base: #11111b;
  --bg-surface: #1e1e2e;
  --bg-overlay: #313244;
  --bg-highlight: #45475a;
  --text-primary: #cdd6f4;
  --text-secondary: #a6adc8;
  --text-muted: #6c7086;
  --accent-blue: #89b4fa;
  --accent-green: #a6e3a1;
  --accent-red: #f38ba8;
  --accent-yellow: #f9e2af;
  --accent-purple: #cba6f7;
  --sidebar-width: 220px;
  --properties-width: 260px;
  --toolbar-height: 44px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg-base);
  color: var(--text-primary);
  height: 100vh;
  overflow: hidden;
}

#app {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr var(--properties-width);
  grid-template-rows: var(--toolbar-height) 1fr;
  height: 100vh;
}

/* Toolbar spans all columns */
.toolbar {
  grid-column: 1 / -1;
  grid-row: 1;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--bg-overlay);
  display: flex;
  align-items: center;
  padding: 0 12px;
  gap: 6px;
}

.sidebar {
  grid-column: 1;
  grid-row: 2;
  background: var(--bg-surface);
  border-right: 1px solid var(--bg-overlay);
  overflow-y: auto;
  padding: 12px;
}

.canvas-area {
  grid-column: 2;
  grid-row: 2;
  background: var(--bg-base);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.properties {
  grid-column: 3;
  grid-row: 2;
  background: var(--bg-surface);
  border-left: 1px solid var(--bg-overlay);
  overflow-y: auto;
  padding: 12px;
}

/* Toolbar buttons */
.toolbar-btn {
  padding: 6px 12px;
  background: var(--bg-overlay);
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--text-primary);
  font-size: 12px;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 4px;
  white-space: nowrap;
}

.toolbar-btn:hover { background: var(--bg-highlight); }
.toolbar-btn.active { background: var(--accent-blue); color: var(--bg-base); }
.toolbar-btn:disabled { opacity: 0.4; cursor: default; }

.toolbar-separator {
  width: 1px;
  height: 24px;
  background: var(--bg-highlight);
  margin: 0 4px;
}

.toolbar-btn.copy-btn {
  background: var(--accent-green);
  color: var(--bg-base);
  font-weight: 600;
}
.toolbar-btn.copy-btn:hover { opacity: 0.9; }

/* Sidebar sections */
.section-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin: 12px 0 6px;
}

.sidebar-item {
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
}

.sidebar-item:hover { background: var(--bg-overlay); }
.sidebar-item.selected { background: var(--bg-highlight); color: var(--text-primary); }

.sidebar-item .icon {
  font-size: 11px;
  width: 16px;
  text-align: center;
  flex-shrink: 0;
}

.project-title {
  font-weight: 700;
  color: var(--accent-blue);
  padding: 4px 8px;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  margin-bottom: 8px;
}

.project-title:hover { background: var(--bg-overlay); }
.project-title.selected { background: var(--bg-highlight); }

.add-btn {
  padding: 4px 8px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
}

.add-btn:hover { color: var(--text-primary); }

.sidebar-rename {
  width: 100%;
  padding: 4px 8px;
  background: var(--bg-base);
  border: 1px solid var(--accent-blue);
  border-radius: 4px;
  color: var(--text-primary);
  font-size: 13px;
  font-family: inherit;
  outline: none;
}

/* Properties panel */
.prop-group { margin-bottom: 16px; }

.prop-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.prop-input {
  width: 100%;
  background: var(--bg-overlay);
  border: 1px solid var(--bg-highlight);
  color: var(--text-primary);
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-family: inherit;
}

.prop-input:focus {
  outline: none;
  border-color: var(--accent-blue);
}

.prop-select {
  width: 100%;
  background: var(--bg-overlay);
  border: 1px solid var(--bg-highlight);
  color: var(--text-primary);
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-family: inherit;
}

.prop-textarea {
  width: 100%;
  background: var(--bg-overlay);
  border: 1px solid var(--bg-highlight);
  color: var(--text-primary);
  padding: 6px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-family: inherit;
  resize: vertical;
  min-height: 80px;
}

.prop-textarea:focus, .prop-select:focus {
  outline: none;
  border-color: var(--accent-blue);
}

.delete-btn {
  width: 100%;
  padding: 8px;
  background: var(--accent-red);
  color: var(--bg-base);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  font-size: 12px;
  margin-top: 12px;
}

.delete-btn:hover { opacity: 0.9; }

.prop-header {
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.prop-readonly {
  background: var(--bg-overlay);
  padding: 8px;
  border-radius: 4px;
  font-family: monospace;
  font-size: 10px;
  color: var(--text-muted);
  word-break: break-all;
}

.warning {
  color: var(--accent-yellow);
  font-size: 11px;
  margin-top: 4px;
}

/* Canvas */
.canvas-wrapper {
  position: relative;
  max-width: 100%;
  max-height: 100%;
}

.canvas-wrapper img {
  display: block;
  max-width: 100%;
  max-height: calc(100vh - var(--toolbar-height));
  object-fit: contain;
}

.canvas-wrapper svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Toast */
.toast {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-highlight);
  color: var(--text-primary);
  padding: 8px 20px;
  border-radius: 6px;
  font-size: 13px;
  z-index: 1000;
  animation: toast-fade 2s ease forwards;
}

@keyframes toast-fade {
  0% { opacity: 0; transform: translateX(-50%) translateY(10px); }
  15% { opacity: 1; transform: translateX(-50%) translateY(0); }
  70% { opacity: 1; }
  100% { opacity: 0; }
}

/* Dirty indicator */
.dirty-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--accent-yellow);
  border-radius: 50%;
  margin-left: 6px;
}

/* Star icon for start scene */
.star { color: var(--accent-yellow); font-size: 10px; margin-left: auto; }

/* Save button */
.save-btn {
  background: var(--accent-green);
  color: var(--bg-base);
  font-weight: 600;
}
.save-btn:hover { opacity: 0.9; }
.save-btn.dirty {
  background: var(--accent-yellow);
  color: var(--bg-base);
}

/* Image preview in properties */
.prop-preview {
  margin-top: 6px;
  border-radius: 4px;
  border: 1px solid var(--bg-highlight);
  max-height: 120px;
  object-fit: contain;
}

/* Welcome screen */
.welcome-screen {
  grid-column: 1 / -1;
  grid-row: 1 / -1;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-base);
}

.welcome-content {
  text-align: center;
  max-width: 400px;
}

.welcome-title {
  font-size: 36px;
  font-weight: 700;
  color: var(--accent-blue);
  margin-bottom: 8px;
}

.welcome-subtitle {
  color: var(--text-muted);
  font-size: 14px;
  margin-bottom: 32px;
}

.welcome-btn {
  padding: 12px 32px;
  background: var(--accent-blue);
  color: var(--bg-base);
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}

.welcome-btn:hover { opacity: 0.9; }

.welcome-hint {
  color: var(--text-muted);
  font-size: 12px;
  margin-top: 16px;
  line-height: 1.5;
}

.welcome-unsupported {
  background: var(--bg-overlay);
  border: 1px solid var(--bg-highlight);
  border-radius: 8px;
  padding: 20px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
}

.welcome-unsupported p { margin-bottom: 8px; }
.welcome-unsupported p:last-child { margin-bottom: 0; }

/* Play button */
.play-btn {
  background: var(--accent-purple);
  color: var(--bg-base);
  font-weight: 600;
}
.play-btn:hover { opacity: 0.9; }

/* Player overlay */
.player-overlay {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.player-close {
  position: absolute;
  top: 16px;
  right: 16px;
  z-index: 2010;
  background: rgba(0,0,0,0.6);
  color: #fff;
  border: none;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  font-size: 18px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.5;
  transition: opacity 0.2s;
}

.player-close:hover { opacity: 1; }

.player-scene {
  position: relative;
  max-width: 100vw;
  max-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.player-bg {
  display: block;
  max-width: 100vw;
  max-height: 100vh;
  object-fit: contain;
}

.player-highlight {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  pointer-events: none;
}

.player-svg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.player-svg polygon {
  pointer-events: auto;
}

/* Object overlay in player */
.player-object-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2005;
  cursor: pointer;
}

.player-object-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 700px;
  max-height: 90vh;
  cursor: default;
}

.player-object-img {
  max-width: 100%;
  max-height: 50vh;
  object-fit: contain;
  margin-bottom: 16px;
}

.player-object-desc {
  color: #fff;
  font-size: 1.1rem;
  line-height: 1.6;
  text-align: center;
  padding: 0 20px;
  max-height: 35vh;
  overflow-y: auto;
}