:root {
  --bg: #f6f7f9;
  --card: #ffffff;
  --text: #1d2330;
  --muted: #667085;
  --line: #e3e6ec;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --ok: #1f8a4c;
  --warn: #b26a00;
  --bad: #c4322b;
  --stale: #6b5bd2;
  --chip-bg: #eef1f6;
  --radius: 10px;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161b;
    --card: #1d2027;
    --text: #e7e9ee;
    --muted: #9aa3b2;
    --line: #2e333d;
    --accent: #5b8cff;
    --chip-bg: #272b34;
    --ok: #4cc27f;
    --warn: #f0a83a;
    --bad: #ff6b62;
    --stale: #a596ff;
  }
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 15px/1.6 system-ui, -apple-system, "Hiragino Sans", "Noto Sans JP", sans-serif;
}
button, input, textarea, select { font: inherit; color: inherit; }

.top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  padding: 20px 24px 8px;
  max-width: 1100px;
  margin: 0 auto;
}
h1 { margin: 0; font-size: 22px; }
.sub { margin: 4px 0 0; color: var(--muted); font-size: 14px; }
main { max-width: 1100px; margin: 0 auto; padding: 8px 16px 64px; }

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin: 14px 0;
}
.card h2 { margin: 0 0 12px; font-size: 18px; display: flex; align-items: center; gap: 10px; }
.num {
  display: inline-grid; place-items: center;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--accent); color: var(--accent-text); font-size: 14px;
}
.hint { color: var(--muted); font-size: 13px; margin: 4px 0 10px; }
.field { display: flex; flex-direction: column; gap: 4px; margin-bottom: 12px; }
.field > span { font-size: 13px; color: var(--muted); }
.inline { display: inline-flex; align-items: center; gap: 6px; font-size: 13px; color: var(--muted); }
textarea, input[type="text"], input:not([type]), input[type="password"], input[type="number"], select {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px 10px;
  background: var(--bg);
}
textarea { resize: vertical; }
input.model { width: 230px; }
input[type="range"] { width: 100%; }

button {
  border: 1px solid var(--line);
  background: var(--card);
  border-radius: 8px;
  padding: 7px 14px;
  cursor: pointer;
}
button:disabled { opacity: 0.45; cursor: not-allowed; }
button.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-text); font-weight: 600; }
button.ghost:hover:not(:disabled) { border-color: var(--accent); }
button.small { padding: 4px 10px; font-size: 13px; }
button.danger { color: var(--bad); }
button.link { border: 0; background: none; padding: 0 0 0 8px; color: var(--accent); font-size: 13px; text-decoration: underline; }
.badge { margin-left: 6px; font-size: 12px; padding: 1px 8px; border-radius: 99px; background: var(--chip-bg); color: var(--warn); }
.badge.ok { color: var(--ok); }

.row-actions { display: flex; align-items: center; gap: 10px; flex-wrap: wrap; }
.row-actions.end { justify-content: flex-end; }
.row-actions .spacer { flex: 1; }
.status-text { font-size: 13px; color: var(--muted); white-space: pre-wrap; }
.status-text.bad { color: var(--bad); }
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* 話し手 */
.characters { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 10px; margin-bottom: 10px; }
.character { border: 1px solid var(--line); border-radius: 8px; padding: 10px 12px; display: flex; flex-direction: column; gap: 6px; }
.character .head { display: flex; gap: 6px; align-items: center; }
.character .id { font-size: 12px; color: var(--muted); background: var(--chip-bg); border-radius: 6px; padding: 0 6px; }
.character .voice-row { display: flex; gap: 6px; }
.character .sample { white-space: nowrap; }
.character .reason { font-size: 12px; color: var(--muted); }
.empty { color: var(--muted); font-size: 14px; padding: 8px 0; }

/* 台本の 行 */
.toolbar { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.engine-note { font-size: 13px; color: var(--muted); }
.progress { display: flex; align-items: center; gap: 10px; margin-top: 10px; font-size: 13px; }
.progress .bar { flex: 1; height: 8px; background: var(--chip-bg); border-radius: 99px; overflow: hidden; }
.progress .bar > div { height: 100%; width: 0; background: var(--accent); transition: width 0.3s; }
.summary { font-size: 13px; color: var(--muted); margin: 10px 0 4px; }
.rows-head { display: flex; justify-content: space-between; align-items: center; gap: 8px; margin: 6px 0; flex-wrap: wrap; }
.rows { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; }
.line {
  display: grid;
  grid-template-columns: 22px 34px 120px 1fr 74px 96px auto;
  gap: 8px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 8px;
}
.line.busy { border-color: var(--accent); }
.line .no { color: var(--muted); font-size: 12px; padding-top: 8px; text-align: right; }
.line textarea { min-height: 38px; padding: 6px 8px; }
.line .orig, .line .heard { font-size: 12px; color: var(--muted); margin-top: 2px; word-break: break-all; }
.line .heard.bad { color: var(--warn); }
.line .gap input { padding: 6px; font-size: 13px; }
.line .gap input:not(:placeholder-shown) { border-color: var(--accent); font-weight: 600; }
.ai-pause { border-top: 1px dashed var(--line); padding-top: 12px; margin: 4px 0 14px; }
.line .gap { font-size: 11px; color: var(--muted); }
.line .buttons { display: flex; gap: 4px; flex-wrap: wrap; }
.line .buttons button { padding: 4px 8px; font-size: 13px; }
.chip { display: inline-block; font-size: 12px; padding: 2px 8px; border-radius: 99px; background: var(--chip-bg); white-space: nowrap; margin-top: 6px; }
.chip.ok { color: var(--ok); }
.chip.check { color: var(--warn); font-weight: 600; }
.chip.error { color: var(--bad); font-weight: 600; }
.chip.stale { color: var(--stale); font-weight: 600; }
.chip.busy { color: var(--accent); }
.chip.none { color: var(--muted); }

/* 設定 */
dialog { border: 1px solid var(--line); border-radius: 12px; padding: 0; width: min(720px, calc(100vw - 32px)); background: var(--card); color: var(--text); }
dialog::backdrop { background: rgba(0, 0, 0, 0.4); }
.settings-form { padding: 18px 20px; }
.settings-form h2 { margin: 0 0 10px; }
fieldset { border: 1px solid var(--line); border-radius: 8px; margin: 0 0 12px; padding: 10px 14px; }
legend { font-weight: 600; padding: 0 4px; }
.radio { display: flex; gap: 8px; align-items: flex-start; margin: 4px 0; font-size: 14px; }
.key-row { display: flex; gap: 6px; margin-bottom: 8px; }
table.quota { border-collapse: collapse; font-size: 13px; margin: 8px 0; }
table.quota th, table.quota td { border: 1px solid var(--line); padding: 3px 10px; text-align: left; }

.toast {
  position: fixed; left: 50%; bottom: 24px; transform: translateX(-50%);
  background: var(--text); color: var(--bg); padding: 10px 16px; border-radius: 8px;
  font-size: 14px; max-width: calc(100vw - 32px); white-space: pre-wrap; z-index: 10;
}
audio { width: 100%; margin-top: 12px; }

@media (max-width: 760px) {
  .top { padding: 16px 16px 4px; flex-direction: column; }
  main { padding: 4px 16px 48px; }
  .card { padding: 14px; }
  .grid2 { grid-template-columns: 1fr; }
  input.model { width: 100%; }
  .line { grid-template-columns: 22px 1fr 1fr; }
  .line .no { grid-column: 2 / 3; text-align: left; padding-top: 0; }
  .line .sel { grid-column: 3 / 4; }
  .line > input[type="checkbox"] { grid-row: 1; }
  .line .text, .line .gap, .line .state, .line .buttons { grid-column: 1 / -1; }
}