:root {
  color-scheme: light dark;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
  margin: 0;
  background: #111;
  color: #f4f4f4;
}

.page {
  display: grid;
  gap: 1.25rem;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  padding: 1.25rem;
}

section {
  background: #1b1b1b;
  border: 1px solid #2f2f2f;
  border-radius: 12px;
  padding: 1rem;
}

h1,
h2 {
  margin-top: 0;
}

.brand-header {
  display: grid;
  justify-items: start;
  gap: 0.4rem;
}

.brand-header h1 {
  margin: 0;
}

.brand-logo {
  width: min(280px, 100%);
  height: auto;
}

.upload-btn {
  display: inline-block;
  margin: 0.5rem 0;
  padding: 0.55rem 0.9rem;
  border-radius: 8px;
  background: #2962ff;
  color: white;
  cursor: pointer;
}

input[type="file"] {
  display: none;
}

.status-grid {
  display: grid;
  gap: 0.75rem;
}

.image-controls {
  display: grid;
  gap: 0.4rem;
  margin: 0.75rem 0;
}

.howto-block {
  border: 1px solid #3d3d3d;
  border-radius: 10px;
  background: #202020;
  padding: 0.75rem;
}

.info-block {
  margin-top: 0.7rem;
  border: 1px solid #3d3d3d;
  border-radius: 10px;
  background: #202020;
  padding: 0.75rem;
}

.howto-block h2 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.info-block h2 {
  margin: 0 0 0.4rem;
  font-size: 1rem;
}

.howto-block ol {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.35rem;
}

.info-block ol {
  margin: 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.35rem;
}

.info-block a {
  color: #8ab4ff;
}

.matrix-images {
  margin-top: 0.7rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.matrix-images img {
  width: 100%;
  height: 260px;
  object-fit: contain;
  border: 1px solid #3d3d3d;
  border-radius: 8px;
  background: #161616;
  cursor: zoom-in;
}

.image-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.84);
  display: grid;
  place-items: center;
  z-index: 50;
  padding: 1rem;
}

.image-lightbox[hidden] {
  display: none;
}

.image-lightbox img {
  max-width: min(100%, 980px);
  max-height: 88vh;
  width: auto;
  height: auto;
  border-radius: 10px;
  background: #101010;
  border: 1px solid #505050;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  border: 1px solid #6d6d6d;
  border-radius: 8px;
  padding: 0.35rem 0.6rem;
  background: rgba(24, 24, 24, 0.9);
  color: #f2f2f2;
  cursor: pointer;
}

.howto-important {
  display: inline-block;
  margin-top: 0.35rem;
  padding: 0.2rem 0.45rem;
  border: 1px solid #f59e0b;
  border-radius: 6px;
  background: rgba(245, 158, 11, 0.18);
  color: #fde68a;
  font-weight: 600;
}

.zoom-controls {
  display: flex;
  gap: 0.5rem;
}

.zoom-controls.under-editor {
  justify-content: center;
  margin-top: 0.65rem;
}

.workspace-layout {
  display: grid;
  grid-template-columns: minmax(295px, auto) minmax(280px, 360px);
  gap: 1rem;
  align-items: start;
}

.workspace-editor-col {
  display: grid;
  justify-items: center;
  align-content: start;
}

.workspace-controls-right {
  width: min(360px, 100%);
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.workspace-controls-right .age-rules {
  margin-top: 0;
}

.image-controls button {
  width: fit-content;
  padding: 0.45rem 0.7rem;
  border: 1px solid #555;
  border-radius: 8px;
  background: #2a2a2a;
  color: #efefef;
  cursor: pointer;
}



.age-rules {
  border: 1px solid #3d3d3d;
  border-radius: 8px;
  padding: 0.6rem;
  margin: 0.5rem 0 0.75rem;
  display: grid;
  gap: 0.35rem;
}

.age-rules label {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

#generateBtn {
  margin-top: 0.5rem;
  padding: 0.6rem 0.9rem;
  border: 1px solid #3768ff;
  border-radius: 8px;
  background: #2962ff;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

#generateBtn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.hint {
  margin: 0;
  color: #c9c9c9;
  font-size: 0.9rem;
}

.warning-note {
  border: 1px solid #b45309;
  background: rgba(245, 158, 11, 0.15);
  color: #fde68a;
  border-radius: 8px;
  padding: 0.45rem 0.6rem;
}

.face-check-hint.ok {
  color: #7ff97f;
}

.face-check-hint.warn {
  color: #ffb4b4;
}

.editor {
  position: relative;
  width: min(350px, 100%);
  aspect-ratio: 35 / 45;
  height: auto;
  border: 2px solid #737373;
  margin-inline: auto;
  overflow: hidden;
  background: #2e2e2e;
  touch-action: none;
}

.editor img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform-origin: top left;
  user-select: none;
  pointer-events: none;
}

.uploaded-image {
  position: absolute;
  inset: 0;
  opacity: 1;
  z-index: 0;
}

.uploaded-image {
  z-index: 1;
}

.resize-handle {
  position: absolute;
  width: 18px;
  height: 18px;
  border: 2px solid #ffffff;
  border-radius: 4px;
  background: rgba(41, 98, 255, 0.65);
  box-shadow: 0 0 0 1px #0f0f0f;
  cursor: nwse-resize;
  z-index: 3;
}

.resize-handle[hidden] {
  display: none;
}

.uploaded-image[hidden] {
  display: none;
}

.guide {
  position: absolute;
  color: #111;
  font-size: 0.72rem;
  font-weight: 600;
  z-index: 2;
}

.guide-horizontal {
  left: 0;
  right: 0;
  border-top: 2px dashed;
  padding-left: 0.35rem;
}

.guide-horizontal {
  border-color: #ff6f61;
  color: #ff6f61;
  cursor: ns-resize;
}

.guide-vertical {
  top: 0;
  bottom: 0;
  border-left: 2px dashed;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  padding-top: 0.35rem;
}

.guide-vertical {
  border-color: #80cbc4;
  color: #80cbc4;
  cursor: ew-resize;
}

.nose-guide {
  position: absolute;
  top: 0;
  bottom: 0;
  border-left-style: solid;
  border-left-color: #4fc3f7;
  border-left-width: 2px;
  color: #4fc3f7;
  z-index: 2;
  pointer-events: none;
}

.boundary {
  position: absolute;
  z-index: 1;
  opacity: 0.65;
  border-color: #cfd8dc;
}

.boundary-horizontal {
  left: 0;
  right: 0;
  border-top: 2px dotted;
}

.boundary-vertical {
  top: 0;
  bottom: 0;
  border-left: 2px dotted;
}

#headInnerBoundary,
#faceInnerBoundary {
  border-color: #b0bec5;
}

#headOuterBoundary,
#faceOuterBoundary {
  border-color: #90a4ae;
}

.eye-boundary {
  border-color: #ffd166;
}

.lip-boundary {
  border-color: #c084fc;
}

.eye-zone-band {
  position: absolute;
  left: 0;
  right: 0;
  background: rgba(255, 209, 102, 0.16);
  z-index: 1;
  pointer-events: none;
}

#chinLine,
#earLeftLine {
  border-color: #1e3a8a;
  color: #1e3a8a;
}

#earRightGuide {
  border-color: #80cbc4;
  color: #80cbc4;
}

#crownGuide {
  border-color: #ff6f61;
  color: #ff6f61;
}

#eyeLine {
  border-color: #ffd166;
  color: #ffd166;
}

#lipLine {
  border-color: #c084fc;
  color: #c084fc;
}


.boundary {
  pointer-events: none;
}

.sheet-preview-wrap canvas {
  width: 100%;
  max-width: 350px;
  aspect-ratio: 10 / 15;
  background: #fff;
  border: 1px solid #b5b5b5;
}

.sheet-preview-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
  align-items: start;
}

.sheet-preview-main {
  display: grid;
  justify-items: center;
}

.sheet-preview-wrap.in-editor {
  margin-top: 0.65rem;
  width: min(350px, 100%);
  padding: 0;
  border: 0;
  background: transparent;
}

.sheet-preview-wrap.in-editor h2 {
  margin: 0 0 0.5rem;
  font-size: 1rem;
  text-align: center;
}

.result-actions {
  margin-top: 0.65rem;
  display: grid;
  gap: 0.5rem;
}

@media (max-width: 880px) {
  .matrix-images {
    grid-template-columns: 1fr;
  }

  .workspace-layout {
    grid-template-columns: 1fr;
  }

  .sheet-preview-layout {
    grid-template-columns: 1fr;
  }
}

.status-panel {
  display: grid;
  gap: 0.75rem;
}

.status-panel > div {
  border: 1px solid #2f2f2f;
  border-radius: 8px;
  padding: 0.55rem 0.65rem;
  background: #202020;
}

.status-panel p {
  margin: 0.35rem 0 0;
}

.metric-label {
  display: block;
}

#downloadBtn {
  padding: 0.55rem 0.85rem;
  border: 1px solid #3768ff;
  border-radius: 8px;
  background: #2962ff;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

#restartBtn {
  padding: 0.55rem 0.85rem;
  border: 1px solid #6b7280;
  border-radius: 8px;
  background: #2a2a2a;
  color: #fff;
  font-weight: 600;
  cursor: pointer;
}

.editor[hidden],
.zoom-controls[hidden] {
  display: none;
}

.sheet-preview-wrap[hidden] {
  display: none;
}

.ok {
  color: #7ff97f;
}

.warn {
  color: #ffb4b4;
}

.build-version {
  margin: 0 1.25rem 1.25rem;
  color: #9ca3af;
  font-size: 0.8rem;
  text-align: right;
}