:root {
  --bg: #f6f5f2; --panel: #ffffff; --ink: #1a1b22; --muted: #5d6170; --line: #e2e0da;
  --accent: #2f5bd3; --accent-ink: #ffffff; --accent-soft: #e9eefc;
  --ok: #157f3b; --ok-soft: #e7f6ec; --warn: #8a5300; --warn-soft: #fff4e0;
  --chip: #f1f0ec; --chip-hover: #e6e9f6;
  --shadow: 0 1px 2px rgba(16, 24, 40, .05), 0 1px 3px rgba(16, 24, 40, .07);
  --radius: 12px;
  color-scheme: light;
}
:root[data-theme="dark"] {
  --bg: #0f1117; --panel: #181b24; --ink: #e8eaf1; --muted: #9ba3b6; --line: #2a2f3d;
  --accent: #8fa8ff; --accent-ink: #0f1430; --accent-soft: #212a4a;
  --ok: #4ade80; --ok-soft: #12301d; --warn: #fbbf24; --warn-soft: #33270b;
  --chip: #20242f; --chip-hover: #283154;
  --shadow: none;
  color-scheme: dark;
}
* { box-sizing: border-box; }
html, body { margin: 0; }
body {
  background: var(--bg); color: var(--ink);
  font: 15px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans", "Helvetica Neue", Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--accent); }
.hidden { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
h1 { font-size: 30px; line-height: 1.2; margin: 0 0 6px; letter-spacing: -0.01em; }
h2 { font-size: 16px; margin: 0 0 10px; }
code { font: 13px/1.4 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; }

.topbar {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 10px 20px; border-bottom: 1px solid var(--line); background: var(--panel);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 8px; min-width: 0; white-space: nowrap; }
.backlink { text-decoration: none; color: var(--muted); }
.backlink:hover { color: var(--ink); }
.sep { color: var(--line); }
.topactions { display: flex; align-items: center; gap: 10px; }
.freebadge { font-size: 12px; color: var(--ok); background: var(--ok-soft); padding: 3px 10px; border-radius: 99px; white-space: nowrap; }

button, select, input { font: inherit; color: inherit; }
button {
  border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 7px 14px;
  cursor: pointer; min-height: 38px;
}
button:hover { border-color: var(--accent); }
button:focus-visible, select:focus-visible, input:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button.primary:hover { filter: brightness(1.08); }
button.ghost { background: transparent; }
.iconbtn { min-width: 38px; padding: 7px 10px; }
select, input[type="text"], input[type="search"] {
  border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 7px 10px; min-height: 38px;
}

.wrap { max-width: 1040px; margin: 0 auto; padding: 24px 20px 40px; }
.hero { margin-bottom: 16px; }
.lede { color: var(--muted); margin: 0 0 14px; font-size: 16px; }

.modes { display: inline-flex; gap: 4px; padding: 3px; background: var(--chip); border-radius: 10px; margin-bottom: 12px; }
.mode { border: 0; background: transparent; min-height: 34px; padding: 5px 14px; border-radius: 8px; color: var(--muted); }
.mode.on { background: var(--panel); color: var(--ink); font-weight: 600; box-shadow: var(--shadow); }

.searchform { display: flex; gap: 8px; max-width: 620px; }
.searchform input { flex: 1; min-width: 0; font-size: 20px; padding: 10px 14px; min-height: 50px; }
.searchform button { min-height: 50px; padding: 0 22px; font-size: 16px; }

.coupletform { display: grid; gap: 6px; max-width: 720px; }
.coupletform label { font-size: 13px; color: var(--muted); margin-top: 4px; }
.coupletform input { width: 100%; font-size: 17px; padding: 9px 12px; }
.formrow { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; margin-top: 6px; }
.hint { color: var(--muted); font-size: 13px; }

.examples { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; margin-top: 12px; }
.exlabel { color: var(--muted); font-size: 13px; margin-right: 2px; }
.chip { min-height: 32px; padding: 4px 12px; border-radius: 99px; background: var(--chip); border-color: transparent; font-size: 14px; }
.chip:hover { background: var(--chip-hover); border-color: transparent; }

.notice { color: var(--muted); margin: 10px 0; }
.notice.warn { color: var(--warn); background: var(--warn-soft); padding: 8px 12px; border-radius: 8px; }

.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow); padding: 16px 18px; }
.target { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; align-items: center; margin-bottom: 14px; }
.tword { font-size: 26px; font-weight: 700; letter-spacing: -0.01em; overflow-wrap: anywhere; }
.tpron { color: var(--muted); margin-top: 2px; }
.tmethod { font-size: 13px; color: var(--muted); margin-top: 4px; }
.tmethod.guess { color: var(--warn); }
.stress { letter-spacing: 1px; color: var(--accent); font-size: 13px; }
.variants { display: flex; flex-wrap: wrap; gap: 6px; align-items: center; }
.variants .vlabel { font-size: 13px; color: var(--muted); }
.variants button { min-height: 32px; padding: 3px 10px; font-size: 13px; }
.variants button.on { border-color: var(--accent); background: var(--accent-soft); }

.toolbar { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 16px; align-items: center; }
.cats { display: flex; flex-wrap: wrap; gap: 6px; }
.cat { min-height: 34px; padding: 4px 12px; border-radius: 99px; font-size: 14px; }
.cat .n { color: var(--muted); font-size: 12px; margin-left: 4px; }
.cat.on { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
.cat.on .n { color: inherit; opacity: .8; }
.cat.empty { opacity: .55; }
.tools { display: flex; flex-wrap: wrap; gap: 8px 14px; align-items: center; font-size: 13px; color: var(--muted); }
.sel { display: inline-flex; gap: 6px; align-items: center; }
.sel select { min-height: 32px; padding: 3px 8px; font-size: 13px; color: var(--ink); }
.chk { display: inline-flex; gap: 5px; align-items: center; cursor: pointer; }
.catnote { color: var(--muted); font-size: 13px; margin: 10px 0 6px; }

.groups { display: grid; gap: 12px; }
.group { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 12px 14px; }
.group h3 { margin: 0 0 8px; font-size: 13px; font-weight: 600; color: var(--muted); text-transform: uppercase; letter-spacing: .04em; }
.words { display: flex; flex-wrap: wrap; gap: 6px; }
.w {
  min-height: 32px; padding: 3px 10px; border-radius: 8px; background: var(--chip); border-color: transparent;
  font-size: 15px; display: inline-flex; gap: 6px; align-items: baseline;
}
.w:hover { background: var(--chip-hover); border-color: transparent; }
.w .st { font-size: 10px; color: var(--accent); letter-spacing: 1px; }
.w.top { font-weight: 600; }
.w.rare { color: var(--muted); }
.more { min-height: 32px; padding: 3px 12px; font-size: 13px; border-style: dashed; }
.none { color: var(--muted); margin: 6px 2px; }

.exports { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 16px; }
.toast { color: var(--ok); font-size: 13px; }

.fitsum { margin-bottom: 12px; }
.fitsum .big { font-size: 18px; font-weight: 600; }
.fitsum .sub { color: var(--muted); font-size: 14px; margin-top: 4px; }
.fitrows { display: grid; gap: 6px; }
.fitrow {
  display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center;
  background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 8px 12px;
}
.fitrow .line { font-size: 16px; overflow-wrap: anywhere; }
.fitrow .line b { color: var(--accent); }
.fitrow .meta { font-size: 12px; color: var(--muted); white-space: nowrap; }
.fitrow .meta .ok { color: var(--ok); }
.fitrow .meta .off { color: var(--warn); }

.howto { margin-top: 28px; }
.kinds { display: grid; grid-template-columns: max-content 1fr; gap: 6px 14px; margin: 0 0 10px; }
.kinds dt { font-weight: 600; }
.kinds dd { margin: 0; color: var(--muted); }
.small { font-size: 13px; color: var(--muted); margin: 0; }

.foot {
  max-width: 1040px; margin: 0 auto; padding: 18px 20px 30px; display: flex; flex-wrap: wrap; gap: 8px 16px;
  justify-content: space-between; color: var(--muted); font-size: 13px; border-top: 1px solid var(--line);
}

@media (max-width: 560px) {
  .wrap { padding: 16px 16px 32px; }
  .topbar { padding: 8px 16px; }
  .freebadge { display: none; }
  h1 { font-size: 25px; }
  .searchform input { font-size: 18px; }
  .searchform button { padding: 0 16px; }
  .kinds { grid-template-columns: 1fr; gap: 2px; }
  .kinds dd { margin-bottom: 6px; }
  .fitrow { grid-template-columns: 1fr; gap: 2px; }
  .foot { padding: 16px; }
}

/* ---------- Next line (AI) lane ---------- */
.aitag { font-size: 10px; font-weight: 700; letter-spacing: .04em; color: var(--accent); background: var(--accent-soft); border-radius: 4px; padding: 1px 4px; margin-left: 2px; vertical-align: 1px; }
.credits { font-size: 13px; color: var(--muted); white-space: nowrap; }
.topup { font-size: 13px; white-space: nowrap; }
.nextform { display: grid; gap: 8px; max-width: 760px; }
.nextform > label { font-size: 13px; color: var(--muted); }
.nextform textarea {
  font: inherit; color: inherit; border: 1px solid var(--line); background: var(--panel); border-radius: 8px;
  padding: 8px 10px; resize: vertical; min-height: 72px; width: 100%;
}
.nextform textarea:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.nlopts { display: flex; flex-wrap: wrap; gap: 10px; align-items: end; }
.nlopts .sel { display: grid; gap: 3px; font-size: 13px; color: var(--muted); }
.nlopts .sel.grow { flex: 1 1 200px; }
.nlopts .sel input, .nlopts .sel select { color: var(--ink); }
.nlopts input[type="number"] { width: 90px; border: 1px solid var(--line); background: var(--panel); border-radius: 8px; padding: 7px 10px; min-height: 38px; }
.nlopts .grow input { width: 100%; }
.nlplan { margin: 0; }
.nlwarn { color: var(--warn); }
.gate { margin: 0; padding: 8px 12px; border-radius: 8px; background: var(--warn-soft); color: var(--ink); font-size: 14px; }
.nlhistory { margin-top: 2px; }
.nlprogress { margin: 12px 0; }
.nlptitle { font-weight: 600; margin-bottom: 6px; }
.steps { list-style: none; margin: 0 0 6px; padding: 0; display: grid; gap: 3px; font-size: 14px; }
.step { color: var(--muted); }
.step.active { color: var(--ink); font-weight: 600; }
.step.done { color: var(--ok); }
.step-ic { display: inline-block; width: 1em; text-align: center; }
.nlrows { display: grid; gap: 14px; margin-top: 12px; }
.nlgroup h3 { font-size: 15px; margin: 0 0 2px; }
.nlgroup .small { margin: 0 0 8px; }
.nlgroup.failed h3 { color: var(--warn); }
.nlrow { background: var(--panel); border: 1px solid var(--line); border-radius: 10px; padding: 10px 14px; margin-bottom: 6px; }
.nlrow.verified { border-left: 3px solid var(--ok); }
.nlrow.unsure { border-left: 3px solid var(--warn); }
.nlrow.failed { border-left: 3px solid var(--line); opacity: .85; }
.nlrow .line { font-size: 17px; overflow-wrap: anywhere; }
.nlrow .line b { color: var(--accent); }
.nlrow .line u { text-decoration-style: wavy; text-decoration-color: var(--warn); }
.nlrow .meta { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 5px; }
.badge { font-size: 12px; border-radius: 99px; padding: 1px 9px; background: var(--chip); color: var(--muted); }
.badge.ok { background: var(--ok-soft); color: var(--ok); }
.badge.mid { background: var(--chip); color: var(--ink); }
.badge.off { background: var(--warn-soft); color: var(--warn); }
.nlrow .why { font-size: 13px; color: var(--muted); margin-top: 4px; }
.nlrow .issues { margin: 4px 0 0; padding-left: 18px; font-size: 12px; color: var(--muted); }
.nlnotes { margin: 10px 0 0; padding-left: 18px; font-size: 13px; color: var(--muted); }
.nlnotes:empty { display: none; }
.cost { font-size: 13px; }
.rawtext { white-space: pre-wrap; overflow-wrap: anywhere; font: 13px/1.45 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; max-height: 360px; overflow: auto; }
@media (max-width: 560px) {
  .freebadge { display: none; }
  .topactions { gap: 6px; }
  .nlopts .sel { flex: 1 1 40%; }
  .nlopts input[type="number"] { width: 100%; }
}