:root {
  --bg: #f5f6f8;
  --surface: #ffffff;
  --text: #1b1f24;
  --muted: #697281;
  --border: #e1e4e9;
  --track: #e8ebf0;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --ok: #1a8f4e;
  --err: #c93636;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --surface: #1a1e24;
    --text: #e7eaee;
    --muted: #8f98a4;
    --border: #2b313a;
    --track: #2b313a;
    --accent: #5b8cff;
    --accent-text: #0b1020;
    --ok: #3cc47c;
    --err: #ff6b6b;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
}

.wrap { max-width: 640px; margin: 0 auto; padding: 40px 16px 64px; }
.wrap.wide { max-width: 1040px; }
header { margin-bottom: 24px; }
header.top { display: flex; justify-content: space-between; align-items: flex-start; gap: 16px; }
header.top p { margin: 4px 0 0; }
@media (max-width: 520px) {
  header.top { flex-direction: column-reverse; gap: 12px; }
  header.top select.lang { align-self: flex-end; }
}
h1 { font-size: 24px; margin: 0 0 4px; }
h2 { font-size: 17px; margin: 0; }
.muted { color: var(--muted); }
.small { font-size: 13px; }

.field { display: flex; flex-direction: column; gap: 6px; margin: 0 0 16px; font-size: 14px; }
input, textarea, select {
  font: inherit;
  color: inherit;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 11px;
  width: 100%;
}
textarea { resize: vertical; }
select.lang { width: auto; flex-shrink: 0; padding: 6px 10px; font-size: 14px; }
input:focus, textarea:focus { outline: 2px solid var(--accent); outline-offset: -1px; border-color: transparent; }

button {
  font: inherit;
  border: 0;
  border-radius: 8px;
  padding: 9px 16px;
  background: var(--accent);
  color: var(--accent-text);
  cursor: pointer;
  white-space: nowrap;
}
button.ghost { background: transparent; color: var(--accent); border: 1px solid var(--border); }
button.danger { color: var(--err); }
button.sm { padding: 4px 10px; font-size: 13px; }
button:disabled { opacity: 0.6; cursor: default; }

.drop {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 44px 16px;
  border: 2px dashed var(--border);
  border-radius: 14px;
  background: var(--surface);
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s;
}
.drop:hover, .drop.over { border-color: var(--accent); }
.drop strong { font-size: 16px; }

.files { list-style: none; padding: 0; margin: 20px 0; display: flex; flex-direction: column; gap: 10px; }
.file { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 12px 14px; }
.file-head { display: flex; gap: 10px; align-items: center; }
.file-name { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.file-size { color: var(--muted); font-size: 13px; white-space: nowrap; }
.bar { height: 6px; background: var(--track); border-radius: 3px; overflow: hidden; margin: 10px 0 6px; }
.bar > i { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.2s; }
.file.done .bar > i { background: var(--ok); width: 100%; }
.status { font-size: 13px; color: var(--muted); font-variant-numeric: tabular-nums; }
.file.done .status { color: var(--ok); }
.file.failed .status { color: var(--err); }

.notice { padding: 14px 16px; border-radius: 10px; background: var(--surface); border: 1px solid var(--border); }
.notice.error { color: var(--err); }
.notice.info { margin: 0 0 20px; border-color: var(--accent); border-left-width: 4px; font-size: 14px; }
.error-text { color: var(--err); font-size: 14px; margin: 10px 0 0; }

.card { background: var(--surface); border: 1px solid var(--border); border-radius: 12px; padding: 18px; margin-bottom: 16px; }
.card > h2, .card > .row { margin-bottom: 14px; }
.row { display: flex; gap: 12px; align-items: flex-end; flex-wrap: wrap; }
.row .field { margin: 0; }
.row .grow { flex: 1 1 240px; }
.row .narrow { width: 120px; }
.row.between { justify-content: space-between; align-items: center; }
.linkout { display: flex; gap: 8px; margin-top: 14px; }
.linkout + .small { margin: 6px 0 0; }

.table-wrap { overflow-x: auto; }
table { width: 100%; min-width: 760px; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); vertical-align: top; }
th { color: var(--muted); font-weight: 500; font-size: 13px; white-space: nowrap; }
td.name { min-width: 180px; max-width: 320px; word-break: break-all; font-weight: 600; }
td.note { max-width: 240px; color: var(--muted); }
td.num { white-space: nowrap; font-variant-numeric: tabular-nums; }
.actions { display: flex; gap: 6px; }