/* 纹样台 —— 浅色工作台
   颜色取自 Radix gray / blue 色阶；边框 0.5px；字号三档 12 / 13 / 15；动效 ease-out 250ms */

:root {
  --gray-1: #fcfcfc;
  --gray-2: #f9f9f9;
  --gray-3: #f0f0f3;
  --gray-4: #e8e8ec;
  --gray-5: #e0e0e6;
  --gray-6: #d9d9e0;
  --gray-8: #b3b3bf;
  --gray-9: #8d8d99;
  --gray-11: #64646f;
  --gray-12: #1f1f24;
  --blue-9: #3e63dd;
  --blue-10: #3358d4;
  --blue-11: #3a5bc7;
  --line: 0.5px solid var(--gray-6);
  --line-soft: 0.5px solid var(--gray-5);
  --r-outer: 14px;
  --r-card: 12px;
  --r-ctl: 8px;
  --r-inner: 6px;
  --shadow: 0 1px 2px rgba(31, 31, 36, 0.04), 0 6px 20px rgba(31, 31, 36, 0.05);
  --f-12: 12px;
  --f-13: 13px;
  --f-15: 15px;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { height: 100%; margin: 0; }
body {
  background: var(--gray-3);
  color: var(--gray-12);
  font: var(--f-13)/1.5 "Inter", -apple-system, "SF Pro Text", "PingFang SC", system-ui, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

/* 三栏：左参数、中画布、右颜色与导出 */
.layout {
  height: 100%;
  display: grid;
  grid-template-columns: 268px minmax(0, 1fr) 268px;
  gap: 14px;
  padding: 14px;
}

.side {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 0;
  overflow: auto;
  scrollbar-width: none;
}
.side::-webkit-scrollbar { display: none; }

.bar {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 2px 4px 0;
}
.bar h1 { margin: 0; font-size: var(--f-15); font-weight: 650; letter-spacing: 0.01em; }
.ver { font-size: var(--f-12); color: var(--gray-9); }

.card {
  background: var(--gray-1);
  border: var(--line);
  border-radius: var(--r-card);
  box-shadow: var(--shadow);
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.card.grow { }
.side.right > .card:last-child { margin-top: auto; }
.card-head { display: flex; align-items: center; justify-content: space-between; }
.card-head h2 { margin: 0; font-size: var(--f-13); font-weight: 600; }
.tag { font-size: var(--f-12); color: var(--gray-11); background: var(--gray-3); border-radius: 999px; padding: 1px 8px; }
#tex-params.is-off { opacity: 0.4; pointer-events: none; }

.row { display: flex; gap: 8px; }
.row.two > * { flex: 1; }
.field { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 0; }
.field > span { font-size: var(--f-12); color: var(--gray-11); }

select {
  appearance: none;
  width: 100%;
  height: 28px;
  padding: 0 22px 0 8px;
  border: var(--line);
  border-radius: var(--r-ctl);
  background: var(--gray-2) url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'><path d='M1 1l4 4 4-4' fill='none' stroke='%2364646f' stroke-width='1.2' stroke-linecap='round'/></svg>") no-repeat right 8px center;
  color: var(--gray-12);
  font: inherit;
  font-size: var(--f-12);
  cursor: pointer;
}
select:hover { background-color: var(--gray-3); }

button { font: inherit; cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: 0.5; }
.ghost {
  height: 26px;
  padding: 0 10px;
  border: var(--line);
  border-radius: var(--r-ctl);
  background: var(--gray-1);
  color: var(--gray-11);
  font-size: var(--f-12);
}
.ghost:hover:not(:disabled) { background: var(--gray-3); color: var(--gray-12); }
.ghost:disabled { color: var(--gray-8); }
.primary {
  height: 32px;
  width: 100%;
  border: 0;
  border-radius: var(--r-ctl);
  background: var(--blue-9);
  color: #fff;
  font-size: var(--f-13);
  font-weight: 600;
  transition: background 250ms ease-out;
}
.primary:hover { background: var(--blue-10); }

/* 母题槽 */
.slots { display: flex; flex-direction: column; gap: 6px; }
.slot {
  display: grid;
  grid-template-columns: 16px 24px minmax(0, 1fr) 48px 44px;
  align-items: center;
  gap: 5px;
  padding: 2px;
  border: var(--line-soft);
  border-radius: var(--r-inner);
  background: var(--gray-2);
}
.slot.dragging { border-color: var(--blue-9); }
.slot.on { background: var(--gray-1); box-shadow: 0 0 0 1px var(--blue-9) inset; }
.slot { cursor: pointer; }
.slot-no { font-size: var(--f-12); color: var(--gray-9); text-align: center; }
.slot-thumb {
  width: 24px; height: 24px;
  border-radius: 5px;
  border: var(--line-soft);
  background: var(--gray-1) center/contain no-repeat;
}
.slot-name {
  font-size: var(--f-12);
  color: var(--gray-11);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.slot-name.empty { color: var(--gray-8); font-style: normal; }
.slot-ang {
  height: 24px;
  padding: 0 16px 0 4px;
  font-size: var(--f-12);
  border-radius: 6px;
  background-position: right 4px center;
}
.slot-pick {
  height: 24px;
  border: var(--line);
  border-radius: 6px;
  background: var(--gray-1);
  color: var(--gray-11);
  font-size: var(--f-12);
}
.slot-pick:hover { background: var(--gray-3); color: var(--gray-12); }

/* 滑杆 */
.slider { display: flex; flex-direction: column; gap: 0; }
.slider-head { display: flex; align-items: baseline; justify-content: space-between; }
.slider-head span { font-size: var(--f-12); color: var(--gray-11); }
.slider-head b { font-size: var(--f-12); color: var(--gray-12); font-weight: 600; font-variant-numeric: tabular-nums; }
input[type="range"] {
  appearance: none;
  width: 100%;
  height: 16px;
  background: transparent;
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 2px;
  border-radius: 2px;
  background: var(--gray-5);
}
input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 12px; height: 12px;
  margin-top: -5px;
  border-radius: 50%;
  background: var(--gray-1);
  border: 1px solid var(--gray-8);
  box-shadow: 0 1px 2px rgba(31, 31, 36, 0.12);
  transition: border-color 250ms ease-out;
}
input[type="range"]:hover::-webkit-slider-thumb { border-color: var(--blue-9); }
input[type="range"]:focus-visible { outline: 2px solid var(--blue-9); outline-offset: 2px; }

.foot {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 4px 2px;
  font-size: var(--f-12);
  color: var(--gray-9);
}
.foot .dot { width: 5px; height: 5px; border-radius: 50%; background: var(--gray-8); }

/* 画布 */
.stage {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 0;
  min-height: 0;
}
.stage-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 4px;
  font-size: var(--f-12);
  color: var(--gray-11);
  font-variant-numeric: tabular-nums;
}
.stage-head .sep { width: 0.5px; height: 10px; background: var(--gray-6); }
.canvas-wrap {
  flex: 1;
  min-height: 0;
  display: grid;
  place-items: center;
  background: var(--gray-2);
  border: var(--line);
  border-radius: var(--r-outer);
  box-shadow: var(--shadow);
  overflow: hidden;
  padding: 16px;
}
#preview {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  border-radius: 2px;
  box-shadow: 0 1px 3px rgba(31, 31, 36, 0.1);
}

/* 配色 */
.pals { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 6px; }
.pal {
  width: 100%;
  height: 30px;
  border: var(--line);
  border-radius: var(--r-ctl);
  overflow: hidden;
  padding: 0;
  display: flex;
  background: var(--gray-1);
  transition: box-shadow 250ms ease-out;
}
.pal:hover { box-shadow: 0 0 0 1px var(--blue-9) inset; }
.pal.on { box-shadow: 0 0 0 1.5px var(--blue-9) inset; }
.pal i { flex: 1; }

.pal-wrap { position: relative; min-width: 0; }
.pal-del {
  position: absolute;
  top: -5px; right: -5px;
  width: 16px; height: 16px;
  border-radius: 50%;
  border: var(--line);
  background: var(--gray-1);
  color: var(--gray-11);
  font-size: 11px;
  line-height: 1;
  display: grid;
  place-items: center;
  opacity: 0;
  transition: opacity 250ms ease-out;
  padding: 0;
}
.pal-wrap:hover .pal-del, .pal-del:focus-visible { opacity: 1; }
.pal-add {
  height: 30px;
  border: 0.5px dashed var(--gray-8);
  border-radius: var(--r-ctl);
  background: transparent;
  color: var(--gray-9);
  font-size: var(--f-13);
}
.pal-add:hover { color: var(--gray-12); border-color: var(--gray-9); }

.fills { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 5px; }
.fill {
  height: 24px;
  border: var(--line);
  border-radius: 6px;
  padding: 0;
  position: relative;
  overflow: hidden;
}
.fill input { position: absolute; inset: -6px; width: 200%; height: 200%; border: 0; padding: 0; cursor: pointer; background: none; }

.export { display: flex; flex-direction: column; gap: 6px; }
.hint { margin: 0; font-size: var(--f-12); color: var(--gray-9); min-height: 1.5em; }

/* 窄屏：画布顶到上面，两栏收到画布下面 */
@media (max-width: 1080px) {
  .layout { grid-template-columns: 1fr; grid-template-rows: minmax(0, 1fr) auto auto; }
  .side { flex-direction: row; flex-wrap: wrap; overflow: visible; }
  .card { flex: 1 1 240px; }
}

/* 两列排布的控件，用来压高度 */
.grid3 { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 2px 8px; align-items: end; }
.grid2 { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 2px 10px; }
.grid2 .field, .grid2 .slider { min-width: 0; }
.tex-stroke { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1fr); gap: 2px 10px; align-items: end; }

/* 条带列 */
.bands { display: flex; flex-direction: column; gap: 4px; }
.band { display: grid; grid-template-columns: 12px 74px minmax(0, 1fr) minmax(0, 1fr); gap: 5px; align-items: end; }
.band-no { font-size: var(--f-12); color: var(--gray-9); text-align: center; padding-bottom: 4px; }
.band select { height: 22px; font-size: var(--f-12); }
.band .slider-head span { font-size: var(--f-12); }
#band-count { height: 22px; width: 72px; font-size: var(--f-12); }
input[type="color"] {
  width: 100%;
  height: 26px;
  padding: 0;
  border: var(--line);
  border-radius: var(--r-ctl);
  background: var(--gray-1);
  cursor: pointer;
}

/* 头部预设 */
.preset { width: 84px; height: 24px; font-size: var(--f-12); }
.mini { width: 76px; height: 22px; font-size: var(--f-12); }
.bar .ghost { height: 24px; padding: 0 8px; }

.param-hint { font-size: var(--f-12); color: var(--gray-11); align-self: end; padding-bottom: 5px; }

.grid2 > .span2 { grid-column: 1 / -1; }

/* 图层条 */
.layers { display: flex; gap: 6px; padding: 0 4px; flex-wrap: wrap; }
.lay {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 26px;
  padding: 0 10px;
  border: var(--line);
  border-radius: 999px;
  background: var(--gray-1);
  color: var(--gray-11);
  font-size: var(--f-12);
  cursor: pointer;
  transition: box-shadow 250ms ease-out;
}
.lay:hover { color: var(--gray-12); }
.lay.on { color: var(--gray-12); box-shadow: 0 0 0 1.5px var(--blue-9) inset; }
.lay.hidden-layer { opacity: 0.5; }
.lay .tag-mini { font-style: normal; font-size: var(--f-12); color: var(--blue-11); background: var(--gray-3); border-radius: 999px; padding: 0 6px; }
.lay .eye, .lay .kill {
  border: 0;
  background: none;
  color: var(--gray-9);
  font-size: var(--f-12);
  line-height: 1;
  padding: 0 2px;
  cursor: pointer;
}
.lay .eye:hover, .lay .kill:hover { color: var(--gray-12); }
.lay.add { border-style: dashed; color: var(--gray-9); }
.card-head.sub { margin-top: 2px; }
.card-head.sub h2 { font-size: var(--f-12); color: var(--gray-11); font-weight: 600; }
.field.check { flex-direction: row; align-items: center; justify-content: space-between; }
.field.check input { width: 16px; height: 16px; accent-color: var(--blue-9); }

.lay .slotdot {
  border: 0.5px solid var(--gray-6);
  border-radius: 50%;
  width: 16px; height: 16px;
  display: grid; place-items: center;
  background: var(--gray-1);
  color: var(--gray-11);
  font-size: 11px;
  line-height: 1;
  padding: 0;
  cursor: pointer;
}
.lay .slotdot:hover { color: var(--gray-12); border-color: var(--gray-8); }