:root {
  --bg: #f5f6f8;
  --card: #ffffff;
  --text: #1b1f24;
  --muted: #6a7380;
  --border: #e3e6ea;
  --accent: #2f6fed;
  --accent-text: #ffffff;
  --ok: #1f9d55;
  --info: #8a94a3;
  --warn: #d98a00;
  --fail: #d6363f;
  --error: #8a6ad6;
  --ok-bg: #e6f6ec;
  --warn-bg: #fff4dd;
  --fail-bg: #fde8e9;
  --hover: #f0f3f7;
  --radius: 10px;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root {
    --bg: #111418;
    --card: #1a1e24;
    --text: #e6e9ee;
    --muted: #8d96a3;
    --border: #2b313a;
    --accent: #5b8cff;
    --ok: #3cc47a;
    --info: #7c8696;
    --warn: #f0a92e;
    --fail: #ff5c64;
    --error: #a68cf0;
    --ok-bg: #16301f;
    --warn-bg: #33290f;
    --fail-bg: #3a1a1d;
    --hover: #222831;
    color-scheme: dark;
  }
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font: 14px/1.45 system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
}
button, input, textarea { font: inherit; color: inherit; }

header {
  display: flex; align-items: center; gap: 24px;
  padding: 12px 24px; background: var(--card); border-bottom: 1px solid var(--border);
  position: sticky; top: 0; z-index: 5;
}
.brand { display: flex; align-items: center; gap: 8px; font-weight: 650; font-size: 16px; }
.brand svg { color: var(--accent); }
.tabs { display: flex; gap: 4px; flex: 1; }
.tab { border: 0; background: none; padding: 8px 14px; border-radius: 8px; cursor: pointer; color: var(--muted); font-weight: 550; }
.tab:hover { background: var(--hover); }
.tab.active { background: var(--hover); color: var(--text); }

main > * { min-width: 0; }
main { max-width: 1500px; margin: 0 auto; padding: 20px 24px 60px; display: grid; gap: 18px; }

.input-card, .results-card { background: var(--card); border: 1px solid var(--border); border-radius: var(--radius); padding: 16px; }
.input-head, .input-foot, .toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.input-head label:first-child { font-weight: 550; }
textarea {
  width: 100%; min-height: 140px; margin: 10px 0; padding: 10px 12px; resize: vertical;
  border: 1px solid var(--border); border-radius: 8px; background: var(--bg);
  font-family: ui-monospace, Consolas, monospace; font-size: 13px;
}
textarea:focus, input:focus { outline: 2px solid var(--accent); outline-offset: -1px; }
.actions, .tools { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.muted { color: var(--muted); }
.check { display: inline-flex; align-items: center; gap: 6px; cursor: pointer; color: var(--muted); }

button.primary, button.ghost, .file-btn {
  border-radius: 8px; padding: 7px 14px; cursor: pointer; font-weight: 550; white-space: nowrap;
}
button.primary { background: var(--accent); color: var(--accent-text); border: 1px solid var(--accent); }
button.primary:disabled { opacity: .5; cursor: default; }
button.ghost, .file-btn { background: var(--card); border: 1px solid var(--border); }
button.ghost:hover, .file-btn:hover { background: var(--hover); }

.progress { margin-top: 12px; height: 22px; background: var(--bg); border-radius: 6px; position: relative; overflow: hidden; border: 1px solid var(--border); }
.progress .bar { height: 100%; width: 0; background: var(--accent); opacity: .25; transition: width .3s; }
.progress .ptext { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 550; }

.stats { display: flex; gap: 8px; flex-wrap: wrap; }
.stat { border: 1px solid var(--border); border-radius: 999px; padding: 4px 12px; cursor: pointer; background: var(--card); font-weight: 550; }
.stat.active { outline: 2px solid var(--accent); }
.stat b { margin-left: 4px; }
#search { padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); min-width: 200px; }

.table-wrap { overflow-x: auto; margin-top: 12px; }
table { width: 100%; border-collapse: collapse; }
th, td { padding: 8px 10px; text-align: left; border-bottom: 1px solid var(--border); white-space: nowrap; }
th { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .02em; cursor: pointer; user-select: none; }
th.c, td.c { text-align: center; }
tbody tr.row { cursor: pointer; }
tbody tr.row:hover { background: var(--hover); }
td.name { font-weight: 600; font-family: ui-monospace, Consolas, monospace; font-size: 13px; }

.dot { display: inline-block; width: 12px; height: 12px; border-radius: 50%; background: var(--border); vertical-align: middle; }
.dot.ok { background: var(--ok); }
.dot.info { background: var(--ok); opacity: .55; }
.dot.warn { background: var(--warn); }
.dot.fail { background: var(--fail); }
.dot.error { background: var(--error); }

.badge { display: inline-block; padding: 2px 10px; border-radius: 999px; font-size: 12px; font-weight: 650; }
.badge.ok { background: var(--ok-bg); color: var(--ok); }
.badge.attention { background: var(--warn-bg); color: var(--warn); }
.badge.critique { background: var(--fail-bg); color: var(--fail); }
.badge.pending { background: var(--hover); color: var(--muted); }
.score { font-variant-numeric: tabular-nums; font-weight: 650; }

tr.detail td { background: var(--bg); white-space: normal; padding: 14px 18px; }
.groups { display: grid; grid-template-columns: repeat(auto-fill, minmax(420px, 1fr)); gap: 14px; }
.group h4 { margin: 0 0 6px; font-size: 12px; text-transform: uppercase; color: var(--muted); letter-spacing: .03em; }
.item { display: grid; grid-template-columns: 14px 1fr; gap: 8px; padding: 5px 0; align-items: start; }
.item .dot { margin-top: 4px; }
.item .lbl { font-weight: 600; }
.item .det { margin-top: 3px; font-family: ui-monospace, Consolas, monospace; font-size: 12px; color: var(--muted); word-break: break-all; }
.rerun { border: 0; background: none; cursor: pointer; color: var(--muted); font-size: 15px; padding: 2px 6px; border-radius: 6px; }
.rerun:hover { background: var(--hover); color: var(--text); }
.spinner { display: inline-block; width: 12px; height: 12px; border: 2px solid var(--border); border-top-color: var(--accent); border-radius: 50%; animation: spin .8s linear infinite; vertical-align: middle; }
@keyframes spin { to { transform: rotate(360deg); } }

dialog { border: 1px solid var(--border); border-radius: 14px; background: var(--card); color: var(--text); padding: 0; width: min(640px, 94vw); }
dialog::backdrop { background: rgba(0,0,0,.4); }
dialog form { padding: 20px 22px; max-height: 88vh; overflow: auto; }
dialog h2 { margin: 0 0 12px; font-size: 18px; }
fieldset { border: 1px solid var(--border); border-radius: 10px; margin: 0 0 14px; padding: 10px 14px; display: grid; gap: 10px; }
legend { font-weight: 650; padding: 0 6px; }
fieldset label { display: grid; gap: 4px; font-weight: 550; }
fieldset label.check { display: flex; color: var(--text); }
fieldset input:not([type=checkbox]) { padding: 7px 10px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
small { color: var(--muted); font-weight: 400; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; }
#diag table td { padding: 4px 8px; white-space: normal; }

@media (max-width: 700px) {
  header { flex-wrap: wrap; gap: 10px; padding: 10px 16px; }
  main { padding: 14px 16px 40px; }
  .groups { grid-template-columns: 1fr; }
}

.lock-screen { position: fixed; inset: 0; z-index: 50; background: var(--bg); display: flex; align-items: center; justify-content: center; padding: 16px; }
.lock-screen[hidden] { display: none; }
.lock-card { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 28px; width: min(400px, 100%); display: grid; gap: 12px; text-align: center; }
.lock-card svg { color: var(--accent); justify-self: center; }
.lock-card h2 { margin: 0; font-size: 19px; }
.lock-card p { margin: 0; }
.lock-card input { padding: 9px 12px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg); }
.lock-error { color: var(--fail); min-height: 1.2em; font-weight: 550; }
.stat[data-color=fail] { color: var(--fail); }
.stat[data-color=warn] { color: var(--warn); }
.stat[data-color=ok] { color: var(--ok); }

.vt-btn { border: 1px solid var(--border); background: var(--card); cursor: pointer; color: var(--muted); font-size: 11px; font-weight: 650; padding: 2px 7px; border-radius: 6px; margin-right: 2px; }
.vt-btn:hover { background: var(--hover); color: var(--text); }
.vt-btn:disabled { cursor: default; opacity: .7; }
.vt-btn.done { color: var(--ok); border-color: var(--ok); }
.vt-btn.bad { color: var(--fail); border-color: var(--fail); }