:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1c2230;
  --muted: #667085;
  --line: #e4e7ec;
  --accent: #2563eb;
  --accent-soft: #e8efff;
  --ok: #16a34a;
  --err: #dc2626;
  --checker: #eef0f3;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --card: #1a1f26;
    --text: #e6e9ef;
    --muted: #98a2b3;
    --line: #2b323c;
    --accent: #6d9bff;
    --accent-soft: #1e2a44;
    --checker: #232a33;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 -apple-system, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
}
header, main { max-width: 1120px; margin: 0 auto; padding: 0 16px; }
header { padding-top: 32px; position: relative; }
h1 { margin: 0; font-size: 26px; }
h1 span { color: var(--accent); }
.sub { margin: 4px 0 20px; color: var(--muted); }
.badge { position: absolute; right: 16px; top: 36px; font-size: 13px; padding: 2px 10px; border-radius: 99px; border: 0; cursor: pointer; font-family: inherit; }
.badge::after { content: " ⚙"; }
.badge.ok { background: color-mix(in srgb, var(--ok) 15%, transparent); color: var(--ok); }
.badge.bad { background: color-mix(in srgb, var(--err) 15%, transparent); color: var(--err); }

.card { background: var(--card); border: 1px solid var(--line); border-radius: 14px; padding: 20px; margin-bottom: 20px; }
h2 { margin: 0 0 8px; font-size: 18px; }
h3 { margin: 16px 0 8px; font-size: 14px; color: var(--muted); font-weight: 600; }

.drop {
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  min-height: 200px; border: 2px dashed var(--line); border-radius: 12px; cursor: pointer; text-align: center;
  transition: border-color .15s, background .15s;
}
.drop:hover, .drop.over, .drop:focus-visible { border-color: var(--accent); background: var(--accent-soft); outline: none; }
.drop small, .hint { color: var(--muted); }
.options { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; margin-top: 14px; }
select { margin-left: 6px; padding: 4px 8px; border-radius: 8px; border: 1px solid var(--line); background: var(--card); color: var(--text); font: inherit; }

.progress-head { display: flex; gap: 20px; align-items: flex-start; }
.progress-head img { width: 140px; border-radius: 8px; border: 1px solid var(--line); }
ol#stages { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: repeat(auto-fill, minmax(140px, 1fr)); gap: 6px 16px; }
ol#stages li { color: var(--muted); padding-left: 22px; position: relative; }
ol#stages li::before { content: "○"; position: absolute; left: 0; }
ol#stages li.active { color: var(--accent); font-weight: 600; }
ol#stages li.active::before { content: ""; top: 4px; width: 12px; height: 12px; box-sizing: border-box; border: 2px solid color-mix(in srgb, var(--accent) 25%, transparent); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; }
ol#stages li.done { color: var(--text); }
ol#stages li.done::before { content: "✓"; color: var(--ok); }
ol#stages li.failed::before { content: "✕"; color: var(--err); }
@keyframes spin { to { transform: rotate(360deg); } }
details { margin-top: 16px; }
summary { cursor: pointer; color: var(--muted); }
pre#log { max-height: 220px; overflow: auto; background: var(--bg); padding: 10px 12px; border-radius: 8px; font-size: 12.5px; white-space: pre-wrap; margin: 8px 0 0; }
.error { color: var(--err); }

.result-head { display: flex; justify-content: space-between; align-items: center; gap: 12px; flex-wrap: wrap; }
.actions { display: flex; gap: 10px; }
button, .primary {
  font: inherit; padding: 8px 16px; border-radius: 10px; cursor: pointer; text-decoration: none; border: 1px solid var(--line);
  background: var(--card); color: var(--text);
}
.primary { background: var(--accent); border-color: var(--accent); color: #fff; font-weight: 600; }
.result-body { display: grid; grid-template-columns: minmax(0, 3fr) minmax(260px, 2fr); gap: 20px; margin-top: 12px; }
.preview { margin: 0; }
.tabs { display: flex; gap: 6px; margin-bottom: 10px; flex-wrap: wrap; }
.tabs button { padding: 4px 12px; font-size: 13px; }
.tabs button.active { background: var(--accent-soft); border-color: var(--accent); color: var(--accent); }
.preview img { width: 100%; max-height: 80vh; object-fit: contain; background: var(--bg); border-radius: 8px; border: 1px solid var(--line); display: block; }
aside { max-height: 80vh; overflow: auto; }
.layers { list-style: none; margin: 0; padding: 0; }
.layers li { display: flex; gap: 10px; align-items: center; padding: 6px 4px; border-bottom: 1px solid var(--line); font-size: 13.5px; }
.layers li .meta { color: var(--muted); font-size: 12px; }
.layers .swatch { width: 12px; height: 12px; border-radius: 3px; flex: none; border: 1px solid var(--line); }
.thumbs img {
  width: 48px; height: 48px; object-fit: contain; border-radius: 6px; flex: none;
  background: repeating-conic-gradient(var(--checker) 0 25%, transparent 0 50%) 0 0 / 12px 12px;
}
.tag { font-size: 11px; padding: 0 6px; border-radius: 99px; background: var(--accent-soft); color: var(--accent); }

dialog {
  width: min(520px, calc(100vw - 32px)); padding: 24px; border: 1px solid var(--line); border-radius: 14px;
  background: var(--card); color: var(--text);
}
dialog::backdrop { background: rgba(0, 0, 0, .45); }
dialog label { display: block; margin-bottom: 6px; font-size: 14px; }
dialog input {
  display: block; width: 100%; margin-top: 4px; padding: 8px 10px; font: inherit;
  border: 1px solid var(--line); border-radius: 8px; background: var(--bg); color: var(--text);
}
dialog .hint { font-size: 12.5px; margin: 6px 0 14px; }
dialog code { background: var(--bg); padding: 1px 5px; border-radius: 4px; font-size: 12px; }
dialog menu { display: flex; align-items: center; gap: 8px; padding: 0; margin: 16px 0 0; }
dialog .spacer { flex: 1; }
.msg { font-size: 13px; min-height: 20px; margin: 4px 0 0; }
.msg.ok { color: var(--ok); }
.msg.bad { color: var(--err); }

@media (max-width: 760px) {
  .result-body { grid-template-columns: 1fr; }
  .progress-head { flex-direction: column; }
  .badge { position: static; display: inline-block; margin-bottom: 12px; }
}