:root {
  --bg: #f6f3ee; --panel: #ffffff; --ink: #1f2420; --muted: #66706a; --line: #e2ddd4;
  --accent: #2f5d50; --accent-ink: #ffffff; --danger: #a33a2c;
  --mark-invisible: #f6c7c0; --mark-spaces: #cfe3f7; --mark-quotes: #f7e3b5;
  --mark-dashes: #dcd0f2; --mark-homoglyphs: #f2c7e4; --mark-lines: #c9ecd9;
  --radius: 10px; --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #161917; --panel: #1f2321; --ink: #e8ebe8; --muted: #9aa49e; --line: #333a36;
    --accent: #7fb8a5; --accent-ink: #10201a; --danger: #ef8a7c;
    --mark-invisible: #6b2c25; --mark-spaces: #23415e; --mark-quotes: #5c4a1c;
    --mark-dashes: #43355f; --mark-homoglyphs: #5a2d4c; --mark-lines: #22513a;
  }
}
* { box-sizing: border-box; }
body { margin: 0; background: var(--bg); color: var(--ink);
  font: 16px/1.5 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif; }
header { display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 14px 20px; border-bottom: 1px solid var(--line); background: var(--panel); }
header h1 { font-size: 18px; margin: 0; display: flex; align-items: center; gap: 10px; }
header h1 img { width: 26px; height: 26px; }
header nav { display: flex; gap: 12px; align-items: center; color: var(--muted); font-size: 14px; }
main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 60px; }
a { color: var(--accent); }
.panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); padding: 16px; }
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 820px) { .grid { grid-template-columns: 1fr; } }
h2 { font-size: 15px; margin: 0 0 10px; text-transform: uppercase; letter-spacing: .04em; color: var(--muted); }
textarea, .output { width: 100%; min-height: 320px; padding: 12px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--bg); color: var(--ink); font: 15px/1.55 system-ui, sans-serif;
  resize: vertical; white-space: pre-wrap; word-wrap: break-word; overflow: auto; }
.output { max-height: 600px; }
.toolbar { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; margin-top: 10px; }
button, select, input[type=text], input[type=password], input[type=url] {
  font: inherit; border-radius: 8px; border: 1px solid var(--line); padding: 8px 12px;
  background: var(--panel); color: var(--ink); }
input[type=text], input[type=password], input[type=url] { width: 100%; }
button { cursor: pointer; }
button.primary { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); font-weight: 600; }
button.danger { color: var(--danger); }
button:disabled { opacity: .55; cursor: default; }
.options { display: flex; flex-wrap: wrap; gap: 6px 16px; margin: 12px 0 0; font-size: 14px; }
.options label { display: flex; gap: 6px; align-items: center; cursor: pointer; }
.swatch { display: inline-block; width: 12px; height: 12px; border-radius: 3px; }
.stats { font-size: 14px; color: var(--muted); margin-top: 10px; min-height: 1.5em; }
.stats strong { color: var(--ink); }
mark { border-radius: 3px; padding: 0 1px; color: inherit; }
mark.invisible { background: var(--mark-invisible); }
mark.spaces { background: var(--mark-spaces); }
mark.quotes { background: var(--mark-quotes); }
mark.dashes { background: var(--mark-dashes); }
mark.homoglyphs { background: var(--mark-homoglyphs); }
mark.lines { background: var(--mark-lines); }
mark.invisible::after { content: "◌"; font-size: 11px; opacity: .7; }
.tabs { display: flex; gap: 4px; margin-bottom: 10px; }
.tabs button { border-radius: 8px 8px 0 0; }
.tabs button[aria-selected=true] { background: var(--accent); color: var(--accent-ink); border-color: var(--accent); }
.rewrite { margin-top: 16px; }
.rewrite .row { display: flex; flex-wrap: wrap; gap: 8px; align-items: center; }
.note { font-size: 13px; color: var(--muted); margin: 8px 0 0; }
.error { color: var(--danger); font-size: 14px; min-height: 1.4em; }
.ok { color: var(--accent); font-size: 14px; }
.login { max-width: 380px; margin: 10vh auto; }
.login form { display: grid; gap: 12px; }
.field { display: grid; gap: 4px; font-size: 14px; }
.admin-section { margin-bottom: 16px; }
.models-table, .users-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.models-table td, .users-table td { padding: 6px 4px; border-bottom: 1px solid var(--line); }
.spinner { display: inline-block; width: 14px; height: 14px; border: 2px solid currentColor;
  border-right-color: transparent; border-radius: 50%; animation: spin .8s linear infinite; vertical-align: -2px; }
@keyframes spin { to { transform: rotate(360deg); } }
.hidden { display: none !important; }
#apiForm { max-width: none; margin: 0; }
#userForm input, #pwForm input { max-width: 260px; }
@media (max-width: 520px) {
  header { padding: 12px 16px; }
  header h1 { font-size: 16px; white-space: nowrap; }
  header nav { gap: 8px; }
  #who { display: none; }
}
.filter { max-width: 340px; }
label.inline { display: flex; gap: 6px; align-items: center; font-size: 14px; cursor: pointer; }
.model-list { margin-top: 10px; max-height: 460px; overflow: auto; border: 1px solid var(--line); border-radius: 8px; }
.model-row { display: grid; grid-template-columns: 24px minmax(0, 1fr) minmax(0, 220px); gap: 10px; align-items: center;
  padding: 8px 10px; border-bottom: 1px solid var(--line); font-size: 14px; }
.model-row:last-child { border-bottom: 0; }
.model-row.selected { background: var(--bg); }
.model-row .mid { font-family: var(--mono); font-size: 13px; overflow-wrap: anywhere; }
.model-row .meta { display: block; color: var(--muted); font-family: system-ui, sans-serif; font-size: 12px; }
.model-row .missing { color: var(--danger); }
.model-row input[type=text] { padding: 5px 8px; font-size: 14px; }
@media (max-width: 520px) {
  .model-row { grid-template-columns: 24px minmax(0, 1fr); }
  .model-row input[type=text] { grid-column: 2; }
}