:root {
  --bg: #0e0f12;
  --panel: #15171c;
  --panel-2: #0f1117;
  --border: #262a32;
  --text: #e6e8ee;
  --muted: #8b90a0;
  --accent: #95d600;
  --accent-dim: #6f9f02;
  --accent-2: #9147ff;
  --good: #aef13d;
  --warn: #ffb454;
  --bad: #ff6b6b;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font: 15px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  background: var(--bg);
}

/* ---------- global header (same as the other tools) ---------- */
.site { max-width: 1100px; margin: 0 auto; padding: 32px 20px 0; display: flex; flex-direction: column; align-items: center; gap: 10px; }
.brand { display: block; line-height: 0; }
.brandLogo { width: min(480px, 86vw); height: auto; display: block; }
.crumbs { font: 12px/1.4 ui-monospace, "SF Mono", Menlo, Consolas, monospace; color: var(--muted); letter-spacing: 0.02em; text-align: center; }
.crumbs a, .crumbs a:visited { color: var(--accent); text-decoration: none; }
.crumbs a:hover { color: var(--good); }
.crumbs .sep { color: #3a4150; margin: 0 4px; }

/* ---------- layout ---------- */
.wrap { max-width: 1100px; margin: 0 auto; padding: 36px 20px 48px; }
.head h1 { margin: 0 0 8px; font-size: 24px; font-weight: 650; }
.head h1::before { content: ">"; color: var(--accent); margin-right: 10px; }
.head .intro { margin: 0 0 24px; font-size: 13px; color: var(--muted); max-width: 720px; }

.grid { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 20px; align-items: start; }
.col-right { position: sticky; top: 16px; }
@media (max-width: 900px) {
  .grid { grid-template-columns: 1fr; }
  .col-right { position: static; order: -1; }
}

.panel { background: var(--panel); border: 1px solid var(--border); border-radius: 12px; padding: 20px; margin-bottom: 20px; }
.panel h2 { margin: 0 0 12px; font-size: 15px; font-weight: 650; }
.panel h2::before { content: ">"; color: var(--accent); margin-right: 8px; }

.lbl { display: block; font-size: 13px; font-weight: 600; margin-bottom: 6px; }
.muted { color: var(--muted); font-weight: 400; }
.small { font-size: 12px; }
.note { font-size: 12px; color: var(--muted); margin: 8px 2px 0; }
.hidden { display: none !important; }
.mt10 { margin-top: 10px; }
.mb10 { margin-bottom: 10px; }
.w-auto { width: auto; }

/* tabs */
.tabs { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 16px; }
.tab { background: transparent; border: 1px solid var(--border); color: var(--text); border-radius: 8px; padding: 7px 12px; font: inherit; font-size: 13px; cursor: pointer; }
.tab[aria-selected="true"] { border-color: var(--accent); color: var(--accent); background: rgba(149, 214, 0, 0.06); }
.tab:hover { border-color: var(--accent-dim); }

/* fields */
.field { margin-bottom: 12px; }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
@media (max-width: 520px) { .field-row { grid-template-columns: 1fr; } }
.in, .sel, textarea.in {
  width: 100%;
  background: var(--panel-2);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 9px 11px;
  font: 13px/1.5 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}
textarea.in { min-height: 84px; resize: vertical; }
.in:focus, .sel:focus, textarea.in:focus { outline: none; border-color: var(--accent-dim); }
.in.num { width: 110px; }
.check { display: flex; align-items: center; gap: 8px; font-size: 13px; cursor: pointer; }
.check input { accent-color: var(--accent); width: 16px; height: 16px; margin: 0; }
.err { color: var(--bad); font-size: 12px; margin-top: 4px; }
.warnText { color: var(--warn); font-size: 12px; margin-top: 4px; }

/* colour controls */
.colors { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 12px; }
.color { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.color input[type="color"] { width: 34px; height: 30px; padding: 0; border: 1px solid var(--border); border-radius: 6px; background: var(--panel-2); cursor: pointer; }
.color input[type="text"] { width: 90px; }
.row { display: flex; flex-wrap: wrap; align-items: center; gap: 12px; }
.range { width: 100%; accent-color: var(--accent); }
.subgroup { border-top: 1px solid var(--border); margin-top: 14px; padding-top: 14px; }
.subgroup h3 { margin: 0 0 10px; font-size: 13px; font-weight: 650; color: var(--text); }

/* buttons */
.btn { background: var(--accent); color: #10130a; border: 0; border-radius: 8px; padding: 10px 18px; font-family: inherit; font-size: 14px; font-weight: 700; cursor: pointer; }
.btn:hover { filter: brightness(1.1); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; filter: none; }
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--text); font-weight: 600; }
.btn.sm { padding: 6px 10px; font-size: 12px; }
.btn.fix { background: transparent; border: 1px solid var(--warn); color: var(--warn); font-size: 11px; padding: 4px 8px; font-weight: 700; }
.btn.fix:hover { background: rgba(255, 180, 84, 0.1); }
.controls { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-top: 12px; }
.statusline { color: var(--muted); font-size: 12px; }
.statusline.err { color: var(--warn); }

/* preview */
.preview { display: flex; align-items: center; justify-content: center; background: #ffffff; border-radius: 10px; padding: 12px; min-height: 240px; }
.preview svg { width: 100%; height: auto; max-height: 360px; display: block; }
.preview.checker { background-color: #d8d8d8; background-image: linear-gradient(45deg, #b8b8b8 25%, transparent 25%, transparent 75%, #b8b8b8 75%), linear-gradient(45deg, #b8b8b8 25%, transparent 25%, transparent 75%, #b8b8b8 75%); background-size: 16px 16px; background-position: 0 0, 8px 8px; }
.static-badge { margin-top: 12px; padding: 10px 12px; border: 1px solid #2a3522; border-radius: 8px; background: rgba(149, 214, 0, 0.05); font-size: 12px; }
.static-badge strong { color: var(--accent); letter-spacing: 0.04em; }
.static-badge p { margin: 4px 0 0; color: var(--muted); }
.payload-view { margin-top: 12px; }
.payload-view pre { margin: 6px 0 0; padding: 10px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; font-size: 12px; white-space: pre-wrap; word-break: break-all; color: var(--good); max-height: 160px; overflow: auto; }
.encinfo { font-size: 12px; color: var(--muted); margin-top: 8px; font-variant-numeric: tabular-nums; }

/* checks */
.checks { list-style: none; margin: 0; padding: 0; }
.checks li { display: grid; grid-template-columns: 74px 1fr; gap: 10px; padding: 8px 0; border-top: 1px solid var(--border); font-size: 12px; }
.checks li:first-child { border-top: 0; }
.checks .sev { font-weight: 700; letter-spacing: 0.04em; }
.checks .sev.pass { color: var(--good); }
.checks .sev.warning { color: var(--warn); }
.checks .sev.error { color: var(--bad); }
.checks .title { font-weight: 650; }
.checks .msg { color: var(--muted); margin: 2px 0 0; }
.checks .fixes { margin-top: 6px; display: flex; gap: 6px; flex-wrap: wrap; }

/* size */
.size-presets { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.size-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.size-grid label { font-size: 12px; color: var(--muted); display: block; margin-bottom: 4px; }
.size-readout { font-size: 12px; color: var(--muted); margin-top: 10px; font-variant-numeric: tabular-nums; }
.size-readout b { color: var(--text); }

/* advanced */
details.adv { border-top: 1px solid var(--border); margin-top: 14px; padding-top: 10px; }
details.adv summary { cursor: pointer; font-size: 13px; font-weight: 600; color: var(--muted); }
details.adv summary:hover { color: var(--text); }
details.adv .field { margin-top: 12px; }

/* how / footer */
.how p { margin: 0 0 8px; font-size: 13px; color: var(--muted); }
.how ul { margin: 0; padding-left: 18px; font-size: 13px; color: var(--muted); }
.legal { text-align: center; font-size: 11px; color: #5a6070; padding: 0 20px 8px; }
.contact { text-align: center; font-size: 13px; color: var(--accent-2); padding: 0 20px 28px; }
.contact a { color: var(--accent-2); text-decoration: none; }
.contact a:hover { text-decoration: underline; }

@media (max-width: 520px) {
  .site { padding-top: 24px; }
  .wrap { padding-top: 28px; }
  .panel { padding: 16px; }
}

/* ---------- floating mini preview ---------- */
.minibar {
  position: fixed; left: 50%; bottom: 14px; transform: translateX(-50%);
  display: flex; align-items: center; gap: 14px;
  background: var(--panel); border: 1px solid var(--border); border-radius: 12px;
  padding: 10px 14px; box-shadow: 0 8px 30px rgba(0, 0, 0, 0.5); z-index: 50;
  max-width: calc(100vw - 24px);
}
.minibar-qr { width: 76px; height: 76px; background: #fff; border-radius: 8px; padding: 4px; flex: none; display: flex; align-items: center; justify-content: center; }
.minibar-qr svg { width: 100%; height: 100%; display: block; }
.minibar-info { min-width: 0; }
.minibar-title { font-size: 12px; font-weight: 650; }
.minibar-status { font-size: 12px; color: var(--muted); }
.minibar-status.warn { color: var(--warn); }
.minibar-status.bad { color: var(--bad); }
@media (max-width: 520px) { .minibar { gap: 10px; padding: 8px 10px; } .minibar-title { display: none; } }

/* ---------- v4: pickers, example, download grid, larger minibar ---------- */
.hex { display: none; }
body.show-hex .hex { display: inline-block; }
.check.small { font-size: 12px; color: var(--muted); }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.filebtn { display: inline-block; cursor: pointer; }
.filebtn:hover { border-color: var(--accent-dim); }
.eyeLabel { width: 90px; }

.pickers { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 12px; }
.picker { display: flex; gap: 6px; }
.pick { flex: 1; display: flex; flex-direction: column; align-items: center; gap: 4px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 8px 4px 6px; color: var(--text); cursor: pointer; font: inherit; font-size: 11px; }
.pick svg { width: 34px; height: 34px; display: block; }
.pick span { color: var(--muted); }
.pick:hover { border-color: var(--accent-dim); }
.pick[aria-checked="true"] { border-color: var(--accent); color: var(--accent); background: rgba(149, 214, 0, 0.06); }
.pick[aria-checked="true"] span { color: var(--accent); }

.example-note { font-size: 12px; color: var(--muted); margin-top: 8px; }
.subhead { margin: 16px 0 6px; font-size: 13px; font-weight: 650; }
.payload-view summary { cursor: pointer; font-size: 12px; color: var(--muted); }
.payload-view summary:hover { color: var(--text); }
.how summary { cursor: pointer; list-style: none; }
.how summary::-webkit-details-marker { display: none; }
.how summary h2 { display: inline; margin: 0; }
.how summary::after { content: "  (show)"; color: var(--muted); font-size: 12px; }
.how[open] summary::after { content: "  (hide)"; }
.how[open] summary { margin-bottom: 12px; }

.dl-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 4px; }
.dl-col { display: flex; flex-direction: column; gap: 8px; }
.dl-col .btn { width: 100%; }
.dl-col .note { margin: 0; }
@media (max-width: 520px) { .dl-grid { grid-template-columns: 1fr; } }

.minibar {
  left: 12px; right: 12px; bottom: 12px; transform: none; max-width: none;
  min-height: 26vh; padding: 14px 18px; gap: 18px; align-items: stretch;
}
.minibar-qr { width: auto; height: auto; aspect-ratio: 1 / 1; max-height: 24vh; min-height: 140px; flex: none; padding: 8px; }
.minibar-checks { flex: 1; min-width: 0; overflow: auto; }
.minibar-title { font-size: 13px; margin-bottom: 4px; }
.minibar-status { margin-left: 6px; font-weight: 400; }
.minibar-actions { display: flex; flex-direction: column; gap: 8px; justify-content: center; flex: none; }
.checks.compact li { grid-template-columns: 64px 1fr; padding: 5px 0; }
.checks.compact .title { font-weight: 600; }
@media (max-width: 720px) {
  .minibar { min-height: 0; flex-wrap: wrap; padding: 10px; gap: 10px; }
  .minibar-qr { max-height: 110px; min-height: 96px; }
  .minibar-checks { max-height: 110px; }
  .minibar-actions { flex-direction: row; width: 100%; }
  .minibar-actions .btn { flex: 1; }
}

/* v5: fade the floating bar and preview updates */
.minibar { transition: opacity 0.35s ease, transform 0.35s ease; opacity: 1; }
.minibar.hidden { display: flex !important; opacity: 0; transform: translateY(16px); pointer-events: none; }
.preview svg { transition: opacity 0.25s ease; }

/* v7: print card */
.printcard { display: none; }
.how a { color: var(--accent); }
@media print {
  body > *:not(#printCard) { display: none !important; }
  body { background: #fff; color: #000; }
  .printcard { display: block; }
  .printcard-inner { width: 100%; max-width: 420px; margin: 40px auto; text-align: center; font-family: Helvetica, Arial, sans-serif; color: #000; }
  .printcard h1 { font-size: 40px; margin: 0 0 16px; }
  .printcard .hidden { display: none !important; }
  .printcard-inner { max-width: none; }
  .printcard-qr svg { height: auto; max-width: 100%; }
  .printcard-scan { font-size: 16px; margin: 12px 0 24px; }
  .printcard dl { font-size: 18px; text-align: left; display: grid; grid-template-columns: auto 1fr; gap: 6px 18px; margin: 0 auto; width: max-content; max-width: 100%; }
  .printcard dt { font-weight: 700; }
  .printcard dd { margin: 0; font-family: ui-monospace, Menlo, Consolas, monospace; word-break: break-all; }
}

/* v8: size presets with pictures, three-column download */
.size-presets { display: grid; grid-template-columns: repeat(auto-fit, minmax(96px, 1fr)); gap: 8px; }
.preset { display: flex; flex-direction: column; align-items: center; gap: 6px; background: var(--panel-2); border: 1px solid var(--border); border-radius: 8px; padding: 10px 6px 8px; color: var(--text); cursor: pointer; font: inherit; font-size: 11px; text-align: center; line-height: 1.25; }
.preset svg { width: 40px; height: 40px; display: block; color: var(--muted); }
.preset:hover { border-color: var(--accent-dim); }
.preset[aria-pressed="true"] { border-color: var(--accent); color: var(--accent); background: rgba(149, 214, 0, 0.06); }
.preset[aria-pressed="true"] svg { color: var(--accent); }
.size-readout { margin-top: 10px; font-size: 13px; color: var(--text); }
.size-readout .muted { display: block; font-size: 12px; }
.dl-grid { grid-template-columns: 1fr 1fr 1fr; }
@media (max-width: 900px) { .dl-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .dl-grid { grid-template-columns: 1fr; } }

/* v9 */
.export-panel .dl-grid { max-width: 900px; }