:root {
  --bg: #f6f1e7;
  --card: #fffdf8;
  --ink: #2d2a26;
  --ink-soft: #7a7268;
  --line: #e8dfd0;
  --accent: #e2573f;
  --accent-soft: #fdeee9;
  --ok: #3e8e5a;
  --radius: 14px;
  --shadow: 0 2px 10px rgba(90, 70, 40, .08);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
body {
  background: var(--bg);
  background-image: radial-gradient(circle at 1px 1px, #e3d9c6 1px, transparent 0);
  background-size: 26px 26px;
  color: var(--ink);
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  min-height: 100vh;
}
.hidden { display: none !important; }

.topbar {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 28px; border-bottom: 2px solid var(--line);
  background: rgba(255, 253, 248, .9); backdrop-filter: blur(6px);
  position: sticky; top: 0; z-index: 20;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: conic-gradient(from 45deg, #e2573f, #f2b23c, #4c9e63, #3a76c4, #9c56b4, #e2573f);
  box-shadow: inset 0 0 0 4px #fffdf8;
}
.brand h1 { font-size: 19px; letter-spacing: .5px; }
.brand p { font-size: 12px; color: var(--ink-soft); margin-top: 2px; }
.topbar-note { font-size: 12px; color: var(--ink-soft); }

.quota-chip {
  display: flex; align-items: center; gap: 10px;
  background: #fbf7ee; border: 1.5px solid var(--line); border-radius: 12px; padding: 6px 12px;
  font-size: 12.5px; font-weight: 600; white-space: nowrap;
}
.quota-chip.has-credits { border-color: #3e8e5a66; background: #ecf5ef; color: #2e6b47; }
.quota-chip.no-credits { color: #b3402e; background: var(--accent-soft); border-color: #e2573f44; }

.modal-backdrop {
  position: fixed; inset: 0; background: rgba(45,42,38,.45); backdrop-filter: blur(3px);
  display: flex; align-items: center; justify-content: center; z-index: 100; padding: 20px;
}
.modal { max-width: 430px; width: 100%; }
.modal-sub { font-size: 12.5px; color: var(--ink-soft); line-height: 1.7; margin-bottom: 12px; }
.modal input[type=text] {
  width: 100%; padding: 11px 12px; border-radius: 10px; border: 1.5px solid var(--line);
  font-family: "DejaVu Sans Mono", ui-monospace, monospace; font-size: 15px; letter-spacing: 1px;
}
.modal-msg { font-size: 12.5px; margin-top: 8px; min-height: 16px; }
.modal-msg.err { color: #b3402e; }
.modal-msg.ok { color: #2e6b47; }

.layout {
  display: grid; grid-template-columns: 400px minmax(0, 1fr);
  gap: 18px; padding: 20px 24px; max-width: 1500px; margin: 0 auto;
  align-items: start;
}
.col-left, .col-right { display: flex; flex-direction: column; gap: 18px; min-width: 0; }

.card {
  background: var(--card); border: 1.5px solid var(--line);
  border-radius: var(--radius); box-shadow: var(--shadow); padding: 18px;
}
.card-title { font-size: 15px; font-weight: 700; display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.step {
  width: 24px; height: 24px; border-radius: 50%; flex: none;
  background: var(--accent); color: #fff; font-size: 13px;
  display: inline-flex; align-items: center; justify-content: center;
}

.dropzone {
  border: 2px dashed #d8c9ae; border-radius: 12px; padding: 26px 12px;
  text-align: center; cursor: pointer; transition: .15s;
  background: #fbf7ee; color: var(--ink-soft); font-size: 13px;
}
.dropzone:hover, .dropzone.over { border-color: var(--accent); background: var(--accent-soft); }
.dz-icon { font-size: 26px; margin-bottom: 6px; }
.dz-sub { font-size: 11px; margin-top: 4px; opacity: .8; }

.crop-panel { margin-top: 12px; }
.crop-tools { display: flex; align-items: center; gap: 10px; margin-bottom: 6px; }
.crop-tools input[type=range] { flex: 1; accent-color: var(--accent); }
.crop-hint { font-size: 11px; color: var(--ink-soft); margin-bottom: 6px; }
#cropCanvas {
  width: 100%; border-radius: 10px; border: 1.5px solid var(--line);
  background: repeating-conic-gradient(#efe8da 0 25%, #f9f5ec 0 50%) 0 0 / 18px 18px;
  cursor: grab; touch-action: none;
}
.row-btns { display: flex; gap: 8px; margin-top: 12px; align-items: center; flex-wrap: wrap; }

.btn {
  border: none; border-radius: 10px; padding: 9px 18px; font-size: 13.5px;
  cursor: pointer; font-family: inherit; font-weight: 600; transition: .15s;
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { filter: brightness(1.07); }
.btn-primary:disabled { background: #d8cabb; cursor: not-allowed; }
.btn-ghost { background: #f1e9da; color: var(--ink); }
.btn-ghost:hover { background: #e9dfcb; }
.btn-sm { padding: 6px 12px; font-size: 12px; border-radius: 8px; }
.mini-label { font-size: 12px; color: var(--ink-soft); font-weight: 600; white-space: nowrap; }

.composition-block { margin-bottom: 14px; }
.mode-required { font-weight: 400; opacity: .8; margin-left: 5px; }
.mode-chips { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin-top: 7px; }
.mode-chip {
  border: 1.5px solid var(--line); background: #fbf7ee; border-radius: 10px;
  padding: 9px 10px; cursor: pointer; text-align: left; font-family: inherit; transition: .12s;
}
.mode-chip b { display: block; font-size: 13px; }
.mode-chip span { display: block; margin-top: 2px; font-size: 10.5px; color: var(--ink-soft); }
.mode-chip.on { border-color: var(--accent); background: var(--accent-soft); }
.mode-chip:disabled { cursor: not-allowed; opacity: .5; }
.mode-hint { margin-top: 6px; color: var(--ink-soft); font-size: 11px; line-height: 1.55; }

.style-chips { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; margin-bottom: 12px; }
.style-chip {
  border: 1.5px solid var(--line); background: #fbf7ee; border-radius: 10px;
  padding: 9px 10px; cursor: pointer; text-align: left; font-family: inherit; transition: .12s;
}
.style-chip b { display: block; font-size: 13px; }
.style-chip span { font-size: 11px; color: var(--ink-soft); }
.style-chip.on { border-color: var(--accent); background: var(--accent-soft); }
.style-chip.locked { opacity: .55; filter: grayscale(.65); }
.style-chip.locked b::after { content: " · 需卡密"; font-size: 10px; color: #b3402e; font-weight: 700; }
.gen-lock { font-size: 12px; color: #b3402e; margin-top: 8px; }
.gen-lock a { color: var(--accent); font-weight: 700; text-decoration: underline; }
.gen-status { font-size: 12px; color: var(--ink-soft); }

.variant-gallery { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; margin-top: 12px; }
.variant {
  border: 2px solid var(--line); border-radius: 10px; overflow: hidden;
  background: #fff; position: relative; cursor: pointer; transition: .12s;
}
.variant img { width: 100%; aspect-ratio: 1; object-fit: cover; display: block; }
.variant .v-label {
  position: absolute; left: 0; right: 0; bottom: 0; padding: 4px 8px;
  font-size: 11px; background: rgba(255,255,255,.88); backdrop-filter: blur(2px);
  display: flex; justify-content: space-between; align-items: center;
}
.variant.busy .v-body { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; flex-direction: column; gap: 8px; color: var(--ink-soft); font-size: 12px; }
.variant.active { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-soft); }
.variant .v-regen { cursor: pointer; color: var(--accent); font-weight: 700; }
.v-error { color: #b3402e; font-size: 11px; padding: 8px; }
.spinner {
  width: 26px; height: 26px; border-radius: 50%;
  border: 3px solid #eadfcb; border-top-color: var(--accent); animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.tip { font-size: 11px; color: var(--ink-soft); margin-top: 10px; }

.params-grid { display: grid; gap: 14px; margin-bottom: 14px; }
.chip {
  border: 1.5px solid var(--line); background: #fbf7ee; border-radius: 9px;
  padding: 7px 10px; cursor: pointer; font-family: inherit; font-size: 12.5px; font-weight: 600;
}
.chip.on { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.board-slider-row { display: flex; align-items: center; gap: 12px; margin: 4px 0 8px; }
.board-slider-row input[type=range] { flex: 1; accent-color: var(--accent); height: 6px; }
.board-val {
  font-size: 13px; font-weight: 700; color: var(--accent); white-space: nowrap;
  background: var(--accent-soft); border-radius: 8px; padding: 4px 10px; min-width: 74px; text-align: center;
}
.board-ticks { display: flex; gap: 8px; }
.tick {
  border: 1.5px solid var(--line); background: #fbf7ee; border-radius: 9px;
  padding: 5px 12px; cursor: pointer; font-family: inherit; font-size: 12.5px; font-weight: 600;
}
.tick small { display: block; font-weight: 400; color: var(--ink-soft); font-size: 10.5px; }
.tick.on { border-color: var(--accent); background: var(--accent-soft); color: var(--accent); }
.tick.on small { color: var(--accent); opacity: .75; }

.set-chips { display: flex; gap: 8px; flex-wrap: wrap; }
.set-note { font-size: 11.5px; color: var(--ink-soft); margin-top: 8px; }

.avail-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 4px; }
.avail-actions { display: flex; gap: 6px; }
.avail-hint { font-size: 11px; color: var(--ink-soft); margin-bottom: 8px; }
.palette-grid { display: flex; flex-direction: column; gap: 10px; max-height: 300px; overflow-y: auto; padding-right: 4px; }
.pgroup { }
.pgroup-title { font-size: 11px; color: var(--ink-soft); margin-bottom: 4px; }
.pgroup-swatches { display: flex; flex-wrap: wrap; gap: 5px; }
.swatch {
  min-width: 46px; height: 28px; padding: 0 4px; border-radius: 7px; border: 1.5px solid rgba(0,0,0,.18);
  cursor: pointer; position: relative; transition: .1s;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 10.5px; font-weight: 700; letter-spacing: .3px; font-family: "DejaVu Sans Mono", ui-monospace, monospace;
}
.swatch.off { filter: grayscale(1) brightness(1.15); opacity: .4; }
.swatch.off::after {
  content: ""; position: absolute; left: -2px; top: 13px; width: calc(100% + 4px); height: 2px;
  background: #b3402e; transform: rotate(-18deg); border-radius: 2px;
}
.swatch:hover { transform: scale(1.12); z-index: 2; }

#outputCard { min-height: 300px; }
.warn-strip {
  display: flex; align-items: center; gap: 10px; flex-wrap: wrap;
  background: var(--accent-soft); border: 1.5px solid #e2573f55; color: #b3402e;
  border-radius: 10px; padding: 10px 14px; font-size: 13px; margin-bottom: 12px;
}
.output-empty { color: var(--ink-soft); font-size: 13px; line-height: 2; text-align: center; padding: 40px 10px; }
.chart-toolbar { display: flex; gap: 12px; align-items: center; justify-content: space-between; margin-bottom: 10px; flex-wrap: wrap; }
.chart-meta { font-size: 12.5px; color: var(--ink-soft); }
.chart-meta b { color: var(--ink); }
#viewMode { padding: 6px 8px; border-radius: 8px; border: 1.5px solid var(--line); font-family: inherit; font-size: 12px; }
.chart-wrap {
  border: 1.5px solid var(--line); border-radius: 10px; overflow: auto;
  max-height: 620px; background: #fff; display: flex; justify-content: center;
}
#chartCanvas { max-width: 100%; height: auto; }

.counts-wrap { margin-top: 14px; }
.counts-head { display: flex; justify-content: space-between; align-items: center; margin-bottom: 8px; }
.counts-head h3 { font-size: 14px; }
.counts-list { display: flex; flex-wrap: wrap; gap: 8px; }
.count-item {
  display: flex; align-items: center; gap: 8px; border: 1.5px solid var(--line);
  border-radius: 9px; padding: 6px 10px; background: #fbf7ee; font-size: 12px;
}
.count-item .dot { width: 16px; height: 16px; border-radius: 5px; border: 1px solid rgba(0,0,0,.2); flex: none; }
.count-item .cnt { font-weight: 700; color: var(--accent); }

.foot { text-align: center; font-size: 11.5px; color: var(--ink-soft); padding: 16px; }

@media (max-width: 980px) {
  .layout { grid-template-columns: 1fr; }
}