/* build: pindou-20260323-2385 */
:root {
  font-family: "Segoe UI", "Microsoft YaHei", "PingFang SC", sans-serif;
  line-height: 1.5;
  color: #3f3a52;
  background-color: #fff4fb;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(1200px 800px at -10% -20%, rgba(255, 154, 211, 0.28), transparent 60%),
    radial-gradient(900px 700px at 110% 0%, rgba(173, 216, 255, 0.22), transparent 58%),
    linear-gradient(180deg, #fff9fd 0%, #fef3ff 100%);
}

.app {
  min-height: 100dvh;
  display: grid;
  grid-template-columns: minmax(320px, 380px) minmax(0, 1fr);
  gap: 20px;
  align-items: start;
  padding: 20px;
  max-width: 1600px;
  margin: 0 auto;
}

.panel {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(255, 214, 241, 0.9);
  border-radius: 24px;
  padding: 18px;
  position: sticky;
  top: 18px;
  backdrop-filter: blur(8px);
  box-shadow:
    0 14px 32px rgba(232, 121, 249, 0.14),
    0 4px 12px rgba(99, 102, 241, 0.08);
}

h1 {
  margin: 0 0 8px;
  font-size: 26px;
  letter-spacing: 0.5px;
  color: #6b3fa0;
}

.cuteTag {
  display: inline-flex;
  align-items: center;
  font-size: 12px;
  font-weight: 700;
  color: #a04aa5;
  background: linear-gradient(135deg, #ffe4f4, #e9ddff);
  border: 1px solid #f7c6e8;
  border-radius: 999px;
  padding: 4px 10px;
  margin-bottom: 8px;
}

p {
  margin: 0 0 12px;
  color: #6b6a7d;
  font-size: 15px;
  line-height: 1.6;
}

.sectionTitle {
  margin-top: 14px;
  font-size: 14px;
  font-weight: 700;
  color: #1e293b;
}

.upload {
  margin-top: 10px;
  display: grid;
  gap: 12px;
}

.uploadMain {
  border: 1px solid #f4cdea;
  background: rgba(255, 250, 254, 0.95);
  border-radius: 16px;
  padding: 10px;
  display: grid;
  gap: 10px;
}

.paletteMode {
  padding: 10px 12px 12px;
  display: grid;
  gap: 8px;
}

.paletteImportRow {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.paletteImportRow input[type="file"] {
  grid-column: 1 / -1;
  width: 100%;
}

.paletteExportRow {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  align-items: center;
}

.uploadRow {
  display: grid;
  grid-template-columns: 84px 1fr;
  gap: 10px;
  align-items: center;
}

.uploadRow input[type="file"] {
  width: 100%;
}

.uploadActions {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 10px;
  align-items: center;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: #374151;
  user-select: none;
}

.toggle input {
  width: 16px;
  height: 16px;
}

.toolbar {
  display: grid;
  gap: 10px;
}

.zoomBar {
  border: 1px solid #f2c9e8;
  border-radius: 14px;
  background: #fff9fd;
  padding: 10px 12px;
  display: grid;
  gap: 8px;
}

.zoomLabel {
  font-size: 14px;
  font-weight: 600;
  color: #805a9d;
}

.zoomControls {
  display: grid;
  grid-template-columns: 36px 1fr 36px auto;
  gap: 8px;
  align-items: center;
}

#zoomText {
  text-align: center;
  font-size: 13px;
  color: #6b6a7d;
}

.toolbox {
  border: 1px solid #f2c9e8;
  border-radius: 14px;
  background: #fff9fd;
  overflow: hidden;
}

.toolbox summary {
  list-style: none;
  cursor: pointer;
  padding: 10px 12px;
  font-size: 14px;
  font-weight: 600;
  color: #805a9d;
  user-select: none;
  position: relative;
}

.toolbox summary::-webkit-details-marker {
  display: none;
}

.toolbox summary::after {
  content: "▾";
  position: absolute;
  right: 12px;
  top: 9px;
  font-size: 14px;
  color: #64748b;
  transition: transform 160ms ease;
}

.toolbox[open] summary::after {
  transform: rotate(180deg);
}

.toolbox .tools {
  padding: 0 10px 10px;
}

.manualSwitch {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: #475569;
  padding: 2px 12px 10px;
}

.manualSwitch input {
  width: 16px;
  height: 16px;
}

.field {
  display: grid;
  gap: 6px;
  font-size: 15px;
  color: #374151;
}

select,
.actions button,
.tools button,
#generateBtn,
#importPaletteBtn,
#exportPaletteBtn,
#resetPaletteBtn,
#copyPaletteBtn {
  border: 1px solid #ebc3e4;
  border-radius: 14px;
  padding: 9px 11px;
  background: #fffdfd;
  cursor: pointer;
  font-size: 14px;
  transition: all 180ms ease;
}

select:focus,
.actions button:focus,
.tools button:focus,
#generateBtn:focus {
  outline: 2px solid #93c5fd;
  outline-offset: 2px;
}

.actions button:hover,
.tools button:hover,
#generateBtn:hover,
#importPaletteBtn:hover,
#exportPaletteBtn:hover,
#resetPaletteBtn:hover,
#copyPaletteBtn:hover,
select:hover {
  border-color: #e8a9dc;
  box-shadow: 0 6px 14px rgba(236, 72, 153, 0.14);
}

.tools {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.tools .active {
  border-color: #2563eb !important;
  color: #1d4ed8;
  background: linear-gradient(180deg, #f0f7ff, #e6f0ff);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.16);
}

.tools button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none !important;
}

#generateBtn {
  background: linear-gradient(135deg, #ff7eb6, #b69cff);
  color: #ffffff;
  border: 0;
  font-weight: 700;
}

#generateBtn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(236, 72, 153, 0.3);
}

#generateBtn:disabled {
  opacity: 0.72;
  cursor: wait;
  transform: none;
  box-shadow: none;
}

#importPaletteBtn {
  background: #fff3fb;
  font-weight: 600;
}

#exportPaletteBtn {
  background: #fff3fb;
}

#resetPaletteBtn {
  background: #fff3fb;
}

#copyPaletteBtn {
  background: #fff3fb;
}

#zoomOutBtn,
#zoomInBtn,
#zoomResetBtn {
  border: 1px solid #ebc3e4;
  border-radius: 12px;
  background: #fffdfd;
  font-size: 14px;
  cursor: pointer;
  height: 34px;
}

#zoomOutBtn:hover,
#zoomInBtn:hover,
#zoomResetBtn:hover {
  border-color: #e8a9dc;
  box-shadow: 0 6px 14px rgba(236, 72, 153, 0.14);
}

.palette {
  margin-top: 10px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 8px;
}

.swatch {
  width: 100%;
  height: 54px;
  border: 1px solid rgba(203, 213, 225, 1);
  border-radius: 12px;
  cursor: pointer;
  padding: 8px 10px;
  display: grid;
  align-content: center;
  justify-items: start;
  gap: 2px;
  transition: transform 160ms ease, box-shadow 180ms ease;
}

.swatch:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.12);
}

.swatch.selected {
  outline: 3px solid #f39bd3;
  outline-offset: 1px;
}

.legendEmpty {
  grid-column: 1 / -1;
  border: 1px dashed rgba(244, 167, 214, 0.9);
  border-radius: 14px;
  padding: 12px 12px;
  background: linear-gradient(135deg, rgba(255, 239, 249, 0.95), rgba(240, 233, 255, 0.92));
}

.legendEmptyTitle {
  font-size: 14px;
  font-weight: 700;
  color: #3730a3;
  margin-bottom: 4px;
}

.legendEmptyDesc {
  font-size: 12px;
  line-height: 1.55;
  color: #475569;
}

.swatch .labelRow {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.swatch .num {
  font-weight: 800;
  font-size: 16px;
}

.swatch .count {
  font-size: 12px;
  opacity: 0.9;
}

.actions {
  margin-top: 12px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

small {
  display: block;
  margin-top: 10px;
  color: #64748b;
  word-break: keep-all;
  line-break: auto;
}

.canvasWrap {
  display: grid;
  place-content: center;
}

.canvasCard {
  padding: 14px;
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(245, 207, 234, 0.95);
  backdrop-filter: blur(10px);
  overflow: auto;
  box-shadow:
    0 14px 34px rgba(236, 72, 153, 0.12),
    0 2px 10px rgba(99, 102, 241, 0.1);
}

#gridCanvas {
  --zoom: 1;
  width: min(92vw, 84vh);
  height: min(92vw, 84vh);
  width: calc(min(92vw, 84vh) * var(--zoom));
  height: calc(min(92vw, 84vh) * var(--zoom));
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  background: #ffffff;
  box-shadow: inset 0 1px 0 rgba(15, 23, 42, 0.04);
}

@media (max-width: 980px) {
  .app {
    grid-template-columns: 1fr;
    padding: 14px;
    gap: 14px;
  }

  .panel {
    position: static;
    border-radius: 16px;
  }

  .canvasWrap {
    justify-self: center;
  }

  .canvasCard {
    padding: 10px;
    border-radius: 14px;
  }

  #gridCanvas {
    width: calc(min(92vw, 72vh) * var(--zoom));
    height: calc(min(92vw, 72vh) * var(--zoom));
  }

  .paletteImportRow,
  .paletteExportRow {
    grid-template-columns: 1fr;
  }
}