:root {
  --editor-bg: #0f0e0c;
  --editor-panel: #1a1816;
  --editor-border: #2e2a26;
  --editor-text: #e8e4de;
  --editor-muted: #6b6560;
  --editor-accent: #f5c400;
  --editor-accent-hover: #e8890c;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  height: 100%;
  background: var(--editor-bg);
  color: var(--editor-text);
  font-family: 'Noto Sans JP', -apple-system, sans-serif;
}

#app {
  display: flex;
  flex-direction: column;
  height: 100vh;
  overflow: hidden;
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: var(--editor-panel);
  border-bottom: 1px solid var(--editor-border);
  flex-shrink: 0;
  flex-wrap: wrap;
}

.toolbar-title {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  margin-right: auto;
  color: var(--editor-accent);
}

.toolbar-group {
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn {
  appearance: none;
  border: 1px solid var(--editor-border);
  background: #242019;
  color: var(--editor-text);
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
  font-family: inherit;
  white-space: nowrap;
}

.btn:hover { border-color: var(--editor-accent); color: var(--editor-accent); }

.btn-primary {
  background: linear-gradient(90deg, #f5c400, #e8890c);
  color: #1c1917;
  border: none;
  font-weight: 600;
}

.btn-primary:hover { opacity: 0.9; color: #1c1917; }

.btn-danger:hover { border-color: #c44; color: #f88; }

.btn-sm { padding: 4px 8px; font-size: 11px; }

.workspace {
  display: grid;
  grid-template-columns: minmax(300px, 360px) 1fr;
  flex: 1;
  overflow: hidden;
}

.editor-panel {
  background: var(--editor-panel);
  border-right: 1px solid var(--editor-border);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.editor-panel-header {
  padding: 12px 14px;
  border-bottom: 1px solid var(--editor-border);
  font-size: 12px;
  font-weight: 600;
  color: var(--editor-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-family: 'Inter', sans-serif;
}

.editor-panel-header span {
  color: var(--editor-accent);
  font-family: 'Inter', sans-serif;
}

.slide-form {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}

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

.form-group label {
  display: block;
  font-size: 11px;
  font-weight: 500;
  color: var(--editor-muted);
  margin-bottom: 4px;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.04em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 8px 10px;
  background: #0f0e0c;
  border: 1px solid var(--editor-border);
  border-radius: 6px;
  color: var(--editor-text);
  font-size: 13px;
  font-family: inherit;
  line-height: 1.5;
}

.form-group textarea { min-height: 72px; resize: vertical; }

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--editor-accent);
}

.form-hint {
  font-size: 10px;
  color: var(--editor-muted);
  margin-top: 4px;
  line-height: 1.4;
}

.form-section {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--editor-border);
}

.form-section-title {
  font-size: 11px;
  font-weight: 600;
  color: var(--editor-accent);
  margin-bottom: 10px;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.card-fields {
  background: #0f0e0c;
  border: 1px solid var(--editor-border);
  border-radius: 8px;
  padding: 10px;
  margin-bottom: 10px;
}

.form-group--notes {
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px dashed var(--editor-border);
}

.form-group--notes label {
  color: #4a4540;
}

.form-theme-toggle {
  margin-bottom: 14px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--editor-border);
}

.preview-panel {
  overflow-y: auto;
  background: #141210;
}

.preview-panel .deck--editor {
  background: transparent;
  padding: 24px 32px 48px;
  min-height: 100%;
  gap: 0;
}

.preview-slide-block {
  width: 100%;
  max-width: 960px;
  margin: 0 auto 28px;
}

.preview-slide-block.is-moving {
  transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: grabbing;
}

.preview-slide-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 4px 8px;
  margin-bottom: 4px;
}

.preview-slide-toolbar.is-active .preview-slide-label {
  color: var(--editor-text);
}

.preview-slide-label {
  font-size: 12px;
  color: var(--editor-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  flex: 1;
  min-width: 0;
}

.preview-slide-num {
  font-family: 'Inter', sans-serif;
  font-weight: 700;
  color: var(--editor-accent);
  margin-right: 6px;
}

.preview-slide-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.preview-btn {
  appearance: none;
  border: 1px solid var(--editor-border);
  background: #242019;
  color: var(--editor-muted);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-size: 13px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.preview-btn:hover:not(:disabled) {
  border-color: var(--editor-accent);
  color: var(--editor-accent);
  background: #2a2520;
}

.preview-btn:disabled {
  opacity: 0.25;
  cursor: default;
}

.preview-btn--danger:hover:not(:disabled) {
  border-color: #c44;
  color: #f88;
}

.preview-slide-canvas {
  border: 2px solid transparent;
  border-radius: 4px;
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  outline: none;
}

.preview-slide-canvas:hover {
  border-color: #3a3630;
}

.preview-slide-canvas.is-active {
  border-color: var(--editor-accent);
  box-shadow: 0 0 0 1px rgba(245, 196, 0, 0.25);
}

.preview-slide-canvas .slide-wrapper {
  max-width: none;
  margin-bottom: 0;
}

.preview-panel .deck--editor .deck-spacer {
  display: none;
}

.preview-panel .deck--preview {
  min-height: 100%;
}

.status-bar {
  padding: 4px 16px;
  background: #0f0e0c;
  border-top: 1px solid var(--editor-border);
  font-size: 11px;
  color: var(--editor-muted);
  flex-shrink: 0;
}

.hidden-input { display: none; }

@media (max-width: 900px) {
  .workspace { grid-template-columns: 1fr; grid-template-rows: 1fr 1fr; }
  .editor-panel { border-right: none; border-bottom: 1px solid var(--editor-border); }
}

@media print {
  .toolbar,
  .editor-panel,
  .status-bar,
  .preview-slide-toolbar,
  .no-print { display: none !important; }

  html, body { height: auto; overflow: visible; background: #fff; }

  #app { height: auto; overflow: visible; }

  .workspace {
    display: block;
    overflow: visible;
  }

  .preview-panel {
    overflow: visible;
    background: #fff;
  }
}