/**
 * viewer.css
 * Liminality Editorial Viewer — Canvas stage, comparison viewer, and pill actions.
 */
.viewer-panel {
  display: flex;
  flex-direction: column;
  background: var(--paper);
  position: relative;
  height: 100%;
}
.viewer-toolbar {
  height: 52px;
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.segmented-control {
  display: inline-flex;
  background: var(--badge);
  border: 1px solid var(--rule);
  border-radius: var(--radius-pill);
  padding: 3px;
  gap: 2px;
}
.seg-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  font-size: 0.72rem;
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: all 0.2s ease;
}
.seg-btn.active {
  background: var(--ink);
  color: var(--paper);
  font-weight: 500;
}
.view-bg-options {
  display: flex;
  align-items: center;
  gap: 8px;
}
.bg-toggle {
  width: 18px;
  height: 18px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--rule);
  cursor: pointer;
  transition: transform 0.15s ease;
}
.bg-toggle:hover { transform: scale(1.12); }
.bg-toggle[data-bg="nobg"] {
  background: conic-gradient(#dcdbd5 90deg, #ffffff 90deg 180deg, #dcdbd5 180deg 270deg, #ffffff 270deg);
  background-size: 8px 8px;
}
.bg-toggle[data-bg="paper"] { background: #f5f4ef; }
.bg-toggle[data-bg="ink"] { background: #0e0d0a; }
html[data-theme="dark"] .bg-toggle[data-bg="nobg"] {
  background: conic-gradient(#2a2924 90deg, #12110e 90deg 180deg, #2a2924 180deg 270deg, #12110e 270deg);
  background-size: 8px 8px;
}
.bg-toggle.active {
  border-color: var(--ink);
  box-shadow: 0 0 0 1.5px var(--ink);
}

.canvas-viewport {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: auto;
  padding: 28px;
  position: relative;
}
.bg-nobg {
  background-color: #ffffff !important;
  background-image: conic-gradient(#dcdbd5 90deg, #ffffff 90deg 180deg, #dcdbd5 180deg 270deg, #ffffff 270deg) !important;
  background-size: 20px 20px !important;
}
html[data-theme="dark"] .bg-nobg {
  background-color: #12110e !important;
  background-image: conic-gradient(#201f1a 90deg, #12110e 90deg 180deg, #201f1a 180deg 270deg, #12110e 270deg) !important;
  background-size: 20px 20px !important;
}
.bg-paper { background: #f5f4ef !important; background-image: none !important; }
.bg-ink { background: #0e0d0a !important; background-image: none !important; }

/* Dynamic text colors matching canvas background */
.canvas-viewport.bg-paper .canvas-empty h3 { color: #0e0d0a; }
.canvas-viewport.bg-paper .canvas-empty p { color: #595850; }
.canvas-viewport.bg-paper .empty-icon { color: #66655e; }
.canvas-viewport.bg-ink .canvas-empty h3 { color: #f5f4ef; }
.canvas-viewport.bg-ink .canvas-empty p { color: #a3a195; }
.canvas-viewport.bg-ink .empty-icon { color: #87857b; }

.canvas-empty {
  text-align: center;
  max-width: 360px;
}
.empty-icon {
  width: 44px;
  height: 44px;
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--tertiary);
}
.empty-icon svg { width: 40px; height: 40px; display: block; }
.canvas-empty h3 {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.025em;
  margin-bottom: 8px;
  color: var(--ink);
}
.canvas-empty h3 em {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
}
.canvas-empty p {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.6;
}
.canvas-stage {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  max-width: 100%;
  max-height: 100%;
}
.canvas-stage.split-mode {
  display: grid;
  grid-template-columns: 1fr 1fr;
  width: 100%;
  height: 100%;
}
.preview-item {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  border: 1px solid var(--rule);
  background: transparent;
  padding: 16px;
  overflow: hidden;
  max-width: 100%;
  max-height: 68vh;
}
.preview-tag {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--ink);
  color: var(--paper);
  padding: 3px 8px;
  font-size: 0.65rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  z-index: 10;
}
.preview-orig img {
  max-width: 100%;
  max-height: 60vh;
  object-fit: contain;
}
#svg-render-box {
  display: flex;
  align-items: center;
  justify-content: center;
  max-width: 100%;
  max-height: 60vh;
}
#svg-render-box svg {
  max-width: 100%;
  max-height: 60vh;
  height: auto;
  display: block;
}
.viewer-footer {
  height: 64px;
  border-top: 1px solid var(--rule);
  background: var(--card);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
}
.stats-group {
  display: flex;
  align-items: center;
  gap: 8px;
}
.stat-pill {
  padding: 4px 11px;
  font-size: 0.7rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  background: var(--badge);
  border-radius: var(--radius-pill);
  color: var(--muted);
}
.stat-pill.accent {
  color: var(--ink);
  font-weight: 700;
}
.action-group {
  display: flex;
  align-items: center;
  gap: 10px;
}
.button-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  background: var(--badge);
  color: var(--ink);
  border: 1px solid var(--rule);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: var(--font-grotesk);
}
.button-light:hover {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  transform: translateY(-1px);
}
.button-dark {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  font-size: 0.78rem;
  font-weight: 500;
  border-radius: var(--radius-pill);
  background: var(--ink);
  color: var(--paper);
  border: 1px solid var(--ink);
  cursor: pointer;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: var(--font-grotesk);
}
.button-dark:hover {
  background: #2a2922;
  transform: translateY(-1px);
}
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--ink);
  color: var(--paper);
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  box-shadow: 0 10px 30px rgba(14, 13, 10, 0.2);
  opacity: 0;
  transform: translateY(8px);
  pointer-events: none;
  transition: all 0.22s ease;
  z-index: 100;
}
.toast.visible {
  opacity: 1;
  transform: translateY(0);
}