:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a2f3a;
  --text: #e6e8eb;
  --muted: #9aa1ab;
  --accent: #4f8cff;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: -apple-system, Segoe UI, Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
}

header {
  padding: 24px 32px 8px;
}

header h1 { margin: 0 0 4px; font-size: 22px; }
.subtitle { color: var(--muted); margin: 0; font-size: 14px; }

main {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  padding: 16px 32px 48px;
  max-width: 1200px;
}

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 16px 20px;
}

.panel h2 { margin-top: 0; font-size: 16px; color: var(--accent); }

.preview-panel, .export-panel { grid-column: span 2; }

.field {
  display: block;
  margin-bottom: 14px;
  font-size: 13px;
}

.field span { display: block; margin-bottom: 4px; color: var(--muted); }

.checkbox-field {
  display: flex;
  align-items: center;
  gap: 8px;
}

.checkbox-field span { margin-bottom: 0; }

input[type=range] { width: 100%; }
input[type=file] { color: var(--text); }

button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 8px 14px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 13px;
}

button:disabled { opacity: 0.5; cursor: not-allowed; }

.hidden { display: none !important; }

.status { font-size: 12px; color: var(--muted); margin-top: 8px; min-height: 16px; }

.preview-images {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.preview-box { flex: 1; min-width: 260px; position: relative; }
.preview-box h3 { font-size: 13px; color: var(--muted); margin: 0 0 6px; }
.preview-box img {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 6px;
  background:
    linear-gradient(45deg, #222 25%, transparent 25%),
    linear-gradient(-45deg, #222 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #222 75%),
    linear-gradient(-45deg, transparent 75%, #222 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.svg-editor-layout {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(220px, 1fr);
  gap: 16px;
  margin-top: 8px;
}

@media (max-width: 900px) {
  .svg-editor-layout { grid-template-columns: 1fr; }
}

.svg-editor-canvas { min-width: 0; }

.svg-preview-controls {
  display: flex;
  align-items: flex-end;
  flex-wrap: wrap;
  gap: 10px;
}

.svg-preview-controls .field {
  margin-bottom: 0;
  flex: 1;
  max-width: 280px;
}

.zoom-controls {
  display: flex;
  align-items: center;
  gap: 6px;
}

.zoom-controls button {
  background: #2a2f3a;
  padding: 4px 10px;
  font-size: 14px;
  line-height: 1;
}

.zoom-controls output {
  font-size: 12px;
  color: var(--muted);
  min-width: 42px;
  text-align: center;
}

#svgLayerSelect,
#ringMode,
#ringPositionMode,
#outputSizePreset,
#keychainOutputSizePreset {
  width: 100%;
  background: #11141a;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 6px 8px;
  border-radius: 4px;
}

.svg-preview-viewport {
  margin-top: 10px;
  min-height: 60px;
  max-height: 70vh;
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 6px;
  background:
    linear-gradient(45deg, #222 25%, transparent 25%),
    linear-gradient(-45deg, #222 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, #222 75%),
    linear-gradient(-45deg, transparent 75%, #222 75%);
  background-size: 16px 16px;
  background-position: 0 0, 0 8px, 8px -8px, -8px 0;
}

.svg-preview-container {
  display: inline-block;
  transform-origin: 0 0;
}

.svg-preview-container svg {
  display: block;
}

.svg-preview-container.edit-cursor svg {
  cursor: crosshair;
}

.svg-editor-sidebar { min-width: 0; }

.edit-action-mode {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin: 8px 0;
}

.radio-field {
  display: flex;
  align-items: center;
  gap: 8px;
}

.radio-field span { margin-bottom: 0; }

#processingIndicator {
  position: absolute;
  top: 8px; right: 8px;
  background: rgba(0,0,0,0.6);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
}

.swatches {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.swatch {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #1e222b;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 10px;
  font-size: 12px;
}

.swatch.selectable {
  cursor: pointer;
}

.swatch.selectable:hover {
  border-color: var(--accent);
}

.swatch.selected {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent);
}

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

.edit-actions button {
  background: #2a2f3a;
}

#quantizedImg.ring-pick-cursor {
  cursor: crosshair;
}

.swatch .chip {
  width: 16px; height: 16px;
  border-radius: 3px;
  border: 1px solid rgba(255,255,255,0.2);
}

.palette-list {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 10px;
}

.palette-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.palette-row input[type=color] {
  width: 36px; height: 28px;
  border: none;
  background: none;
  padding: 0;
}

.palette-row input[type=text] {
  width: 90px;
  background: #11141a;
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 6px;
  border-radius: 4px;
  font-family: monospace;
}

.palette-row button {
  background: #3a2020;
  padding: 4px 8px;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
}

/* AdSense: never show/keep ads (incl. sticky anchor/vignette formats, which
   use very high z-index and would otherwise float above the overlay) while
   a config dialog is open - those are "screen being edited" states and
   ads there violate the Google-served-ads-without-content policy. */
body.modal-open .adsbygoogle,
body.modal-open ins.adsbygoogle,
body.modal-open [id^="aswift_"],
body.modal-open [id^="google_ads_iframe"] {
  display: none !important;
}

.content-section {
  max-width: 900px;
  margin: 8px 32px 32px;
  padding: 20px 24px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  line-height: 1.6;
  color: var(--text);
}

.content-section h2 { margin-top: 0; color: var(--accent); font-size: 18px; }
.content-section h3 { color: var(--text); font-size: 15px; margin-bottom: 4px; }
.content-section p { color: var(--muted); margin: 0 0 12px; }
.content-section ol, .content-section ul { color: var(--muted); margin: 0 0 12px; padding-left: 20px; }
.content-section li { margin-bottom: 4px; }

.modal {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 20px 24px;
  width: 90%;
  max-width: 420px;
}

.modal h3 { margin-top: 0; color: var(--accent); }

.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 16px;
}

.modal-actions button.secondary {
  background: #2a2f3a;
}

.ring-map {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  max-width: 160px;
  margin: 8px 0;
}

.ring-map-btn {
  background: #1e222b;
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 16px;
  padding: 10px 0;
  border-radius: 6px;
}

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

.ring-map-btn.selected {
  background: var(--accent);
  border-color: var(--accent);
}