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

html, body {
  background: #EDEAE6;
  color: #000;
}

body {
  font-family: 'Space Mono', ui-monospace, 'SF Mono', Menlo, Consolas, monospace;
  font-size: 11px;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
  padding: 20px 24px;
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

header, .tab-bar { flex-shrink: 0; }

header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 1px solid #000;
  gap: 16px;
  flex-wrap: wrap;
}

h1 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.controls {
  display: flex;
  gap: 14px;
  row-gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.control-group {
  display: flex;
  align-items: center;
  gap: 4px;
  padding-right: 14px;
  border-right: 1px solid rgba(0, 0, 0, 0.18);
}

.control-group:last-child {
  border-right: none;
  padding-right: 0;
}

.group-label {
  font-size: 8px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  opacity: 0.4;
  padding-right: 4px;
  font-weight: 700;
}

button.primary {
  color: #000;
  text-decoration-color: #000;
}

button.primary:disabled {
  color: #000;
  text-decoration-color: #C5BBAE;
}

.btn, button {
  background: transparent;
  border: none;
  color: #000;
  font: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0 8px;
  height: 26px;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
  text-decoration: underline;
  text-decoration-color: #C5BBAE;
  text-decoration-thickness: 1px;
  text-underline-offset: 4px;
}

.btn:hover:not(:disabled),
button:hover:not(:disabled) {
  text-decoration-color: #000;
}

button:disabled {
  color: #000;
  cursor: not-allowed;
  text-decoration-color: #C5BBAE;
  text-decoration-style: dotted;
}

.mini, button.mini {
  padding: 0 6px;
  font-size: 9px;
  height: 22px;
}

.seed-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: none;
  box-sizing: border-box;
  font: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.seed-control input {
  width: 58px;
  border: none;
  border-bottom: 1px dotted #C5BBAE;
  background: transparent;
  font: inherit;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-align: center;
}

.seed-control input:focus {
  outline: none;
  border-bottom: 1px solid #000;
}

.cuts-control {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  border: none;
  padding: 0 4px;
  height: 26px;
  box-sizing: border-box;
  font: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.cuts-control input {
  width: 32px;
  border: none;
  background: transparent;
  font: inherit;
  letter-spacing: 0.04em;
  text-align: center;
  -moz-appearance: textfield;
}

.cuts-control input::-webkit-outer-spin-button,
.cuts-control input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.cuts-control .step {
  border: none;
  padding: 0 4px;
  height: auto;
  font: inherit;
  letter-spacing: 0;
  line-height: 1;
  background: transparent;
}

.cuts-control .step:hover:not(:disabled) {
  background: #000;
  color: #EDEAE6;
}

.slider-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  padding: 0 4px;
  height: 26px;
  box-sizing: border-box;
  font: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.slider-control input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 70px;
  height: 2px;
  background: #000;
  outline: none;
}

.slider-control input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 10px;
  height: 10px;
  background: #000;
  border: none;
  cursor: pointer;
}

.slider-control input[type="range"]::-moz-range-thumb {
  width: 10px;
  height: 10px;
  background: #000;
  border: none;
  cursor: pointer;
}

.slider-control span {
  min-width: 28px;
  text-align: right;
  font-size: 10px;
}

.select-control {
  display: inline-flex;
  align-items: center;
  border: none;
  padding: 0 4px;
  height: 26px;
  box-sizing: border-box;
  font: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  position: relative;
}

.select-control::after {
  content: '▾';
  font-size: 9px;
  margin-left: 6px;
  opacity: 0.6;
}

.select-control select {
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  border: none;
  background: transparent;
  font: inherit;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: inherit;
  cursor: pointer;
  padding: 0;
  outline: none;
}

.color-control {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: none;
  padding: 0 4px;
  height: 26px;
  box-sizing: border-box;
  font: inherit;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  user-select: none;
}

.color-control input[type="color"] {
  width: 20px;
  height: 16px;
  padding: 0;
  border: 1px solid #000;
  background: transparent;
  cursor: pointer;
  box-sizing: border-box;
}

.color-control input[type="color"]::-webkit-color-swatch {
  border: none;
}
.color-control input[type="color"]::-moz-color-swatch {
  border: none;
}

.result-tools {
  display: flex;
  gap: 4px;
  align-items: center;
}

button.active, .btn.active {
  text-decoration-color: #000;
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: #000;
  color: #EDEAE6;
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 8px 14px;
  z-index: 200;
  pointer-events: none;
  transition: opacity 0.2s;
}

.toast.hidden { opacity: 0; }

.tab-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  min-height: 26px;
}

.tab {
  height: 26px;
}

.tab-tools {
  display: none;
  gap: 4px;
  align-items: center;
}

.tab-tools.active {
  display: flex;
  margin-left: auto;
}

main {
  display: flex;
  flex: 1;
  min-height: 0;
}

.panel {
  display: none;
  flex-direction: column;
  gap: 8px;
  min-width: 0;
}

.panel.active {
  display: flex;
  flex: 1;
  min-height: 0;
  width: 100%;
}

.panel-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  min-height: 22px;
}

.label {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  opacity: 0.55;
}

.canvas-wrap {
  position: relative;
  background: #EDEAE6;
  display: flex;
  align-items: center;
  justify-content: center;
  flex: 1;
  min-height: 0;
}

.canvas-wrap.empty {
  border: 1px dashed #000;
  opacity: 0.4;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

.frame {
  position: relative;
  max-width: 100%;
  max-height: var(--canvas-max-h, calc(100vh - 240px));
  line-height: 0;
}

.frame canvas {
  display: block;
  width: auto;
  height: auto;
  max-width: 100%;
  max-height: var(--canvas-max-h, calc(100vh - 240px));
}

#result-wrap .frame {
  outline: 1px solid #000;
  outline-offset: -1px;
}

.canvas-wrap:not(.empty) {
  cursor: zoom-in;
}

.preview-stage {
  position: relative;
  max-width: calc(100vw - 64px);
  max-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
}

#preview-img {
  max-width: 100%;
  max-height: calc(100vh - 80px);
  display: block;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

.overlay {
  position: absolute;
  inset: 0;
  pointer-events: none;
  line-height: 1;
}

.cell {
  position: absolute;
  border: 1px solid #000;
}

.cell-label {
  position: absolute;
  top: 2px;
  left: 3px;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #000;
  text-shadow:
    0 0 2px #EDEAE6,
    0 0 2px #EDEAE6,
    0 0 2px #EDEAE6;
}

body.mode-preview .cell-label { display: none; }
body.no-stroke .result-overlay .cell { border: none; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal.hidden { display: none; }

.modal-bg {
  position: absolute;
  inset: 0;
  background: rgba(20, 20, 18, 0.55);
}

.modal-inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  max-height: calc(100vh - 32px);
  max-width: calc(100vw - 32px);
}

.modal-bar {
  display: none;
}

.modal-tools {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 110;
  display: flex;
  gap: 6px;
}

.modal-tools .mini {
  background: #EDEAE6;
  border: none;
  color: #000;
  padding: 0 10px;
}

.modal-tools .mini:hover { text-decoration: underline; text-underline-offset: 3px; }

.sheet-info {
  position: fixed;
  top: 22px;
  left: 24px;
  z-index: 110;
  color: #EDEAE6;
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  opacity: 0.85;
}

.sheet {
  background: #fff;
  aspect-ratio: 1 / 1.4142;
  height: calc(100vh - 96px);
  max-width: calc(100vw - 32px);
  padding: 24px;
  display: grid;
  gap: 8px;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
}

.sheet-cell {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-start;
  min-width: 0;
  min-height: 0;
  gap: 4px;
}

.sheet-img {
  flex: 0 1 auto;
  display: flex;
  align-items: flex-start;
  justify-content: flex-start;
  width: 100%;
  min-height: 0;
  overflow: hidden;
}

.sheet-img canvas {
  max-width: 100%;
  max-height: 100%;
  display: block;
}

.sheet-caption {
  font-size: 7px;
  letter-spacing: 0.06em;
  text-align: left;
  white-space: nowrap;
  font-weight: 400;
  text-transform: uppercase;
  align-self: stretch;
}

.sheet-caption .res {
  font-weight: 400;
  opacity: 0.7;
  margin-left: 4px;
}