/* Copper Bay Labs — shared design system. Products fork this and add product-specific rules
   BELOW the marked line. Keep tokens in sync so the suite looks like one family.
   RULE: never reference an undefined var(--token) — it renders invisible but still builds green. */
:root {
  --copper: #b87333;          /* brand accent */
  --copper-dark: #8c5527;
  --copper-tint: #f6ede3;
  --ink: #1a1a1a;             /* primary text */
  --muted: #5b5b5b;           /* secondary text */
  --line: #e3e0db;            /* borders */
  --bg: #ffffff;
  --surface: #faf8f5;         /* cards / raised */
  --surface-2: #f2efe9;
  --ok: #2e7d4f; --warn: #b8860b; --bad: #b3331f;
  --radius: 12px;
  --maxw: 880px;
  --shadow: 0 1px 2px rgba(0,0,0,.05), 0 6px 20px rgba(0,0,0,.04);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
@media (prefers-color-scheme: dark) {
  :root {
    --ink: #f2efe9; --muted: #b3aea6; --line: #34302b; --bg: #161412;
    --surface: #1f1c19; --surface-2: #262220; --copper-tint: #2a211a;
  }
}
* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--font); color: var(--ink); background: var(--bg);
  line-height: 1.55; font-size: 17px; }
.wrap { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
a { color: var(--copper-dark); }
a:hover { color: var(--copper); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 8px; top: 8px; background: var(--ink); color: var(--bg); padding: 8px 12px;
  border-radius: 8px; z-index: 10; }

/* Header */
header.site { border-bottom: 1px solid var(--line); background: var(--surface); }
header.site .wrap { display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; padding-bottom: 14px; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--ink);
  text-decoration: none; font-size: 1.15rem; }
.brand img { width: 28px; height: 28px; }
nav.site a { margin-left: 18px; color: var(--muted); text-decoration: none; font-size: .95rem; }
nav.site a:hover { color: var(--copper); }

/* Hero */
.hero { padding: 44px 0 28px; }
.hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); line-height: 1.15; margin: 0 0 12px; }
.hero p.lede { font-size: 1.15rem; color: var(--muted); margin: 0 0 8px; max-width: 60ch; }
.badge { display: inline-flex; align-items: center; gap: 6px; background: var(--copper-tint);
  color: var(--copper-dark); border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 12px; font-size: .85rem; font-weight: 600; }

/* Cards / tool surface */
.card { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow); margin: 18px 0; }
label { display: block; font-weight: 600; margin: 14px 0 6px; font-size: .95rem; }
input, select, textarea { width: 100%; padding: 10px 12px; border: 1px solid var(--line);
  border-radius: 8px; background: var(--bg); color: var(--ink); font: inherit; }
input:focus, select:focus, textarea:focus { outline: 2px solid var(--copper); outline-offset: 1px; }
button, .btn { font: inherit; font-weight: 600; cursor: pointer; border-radius: 8px;
  padding: 11px 18px; border: 1px solid var(--copper-dark); background: var(--copper);
  color: #fff; }
button:hover, .btn:hover { background: var(--copper-dark); }
button.secondary { background: transparent; color: var(--copper-dark); }

/* Footer + cross-promo */
footer.site { border-top: 1px solid var(--line); background: var(--surface); margin-top: 48px;
  padding: 28px 0; color: var(--muted); font-size: .92rem; }
footer.site .promo { display: flex; flex-wrap: wrap; gap: 14px; margin: 8px 0 16px; }
footer.site .promo a { color: var(--copper-dark); text-decoration: none; font-weight: 600; }
footer.site .label { font-weight: 700; color: var(--ink); }

/* ===== product-specific rules below this line ===== */

/* Tabs */
.tabs { display: flex; gap: 4px; border-bottom: 1px solid var(--line); margin: 22px 0 0; }
.tab { background: transparent; color: var(--muted); border: 1px solid transparent;
  border-bottom: none; border-radius: 8px 8px 0 0; padding: 9px 16px; font-weight: 600;
  margin-bottom: -1px; }
.tab:hover { background: var(--surface-2); color: var(--ink); }
.tab[aria-selected="true"] { background: var(--surface); color: var(--ink);
  border-color: var(--line); border-bottom-color: var(--surface); }
.panel { border-top-left-radius: 0; border-top-right-radius: 0; margin-top: 0; }

/* Toolbar */
.toolbar { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; margin-bottom: 14px; }
.toolbar .spacer { flex: 1; }
.inline { display: inline-flex; align-items: center; gap: 8px; margin: 0; font-weight: 600;
  font-size: .92rem; }
.inline span { white-space: nowrap; }
.inline select { width: auto; padding: 7px 10px; }
.inline.check { gap: 6px; }
.inline.check input { width: auto; }

/* Inputs */
textarea { font-family: var(--mono); font-size: .9rem; line-height: 1.5; resize: vertical;
  min-height: 120px; }

/* Status */
.status { margin: 12px 0 0; font-weight: 600; min-height: 1.2em; font-size: .95rem; }
.status.ok { color: var(--ok); }
.status.bad { color: var(--bad); }

/* Stats chips */
.stats { display: flex; flex-wrap: wrap; gap: 8px; margin: 12px 0 0; }
.chip { background: var(--surface-2); border: 1px solid var(--line); border-radius: 999px;
  padding: 4px 12px; font-size: .85rem; }
.chip strong { color: var(--muted); font-weight: 600; }

/* Output surfaces */
.output { margin-top: 14px; background: var(--bg); border: 1px solid var(--line);
  border-radius: 10px; padding: 16px; overflow: auto; max-height: 60vh; }
.output.code pre.json, .output pre.json { margin: 0; font-family: var(--mono); font-size: .88rem;
  line-height: 1.5; white-space: pre; }

/* JSON token colors */
.t-key { color: var(--copper-dark); }
.t-str { color: #2e7d4f; }
.t-num { color: #1f6fb3; }
.t-bool { color: #9333ea; }
.t-null { color: var(--muted); }
.t-punc { color: var(--muted); }
@media (prefers-color-scheme: dark) {
  .t-key { color: #e0a978; } .t-str { color: #7fce9e; } .t-num { color: #7fc0f0; }
  .t-bool { color: #c9a6f5; }
}

/* Tree */
.output.tree { font-family: var(--mono); font-size: .88rem; line-height: 1.7; }
.tnode { }
.trow { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.tkids { padding-left: 20px; border-left: 1px solid var(--line); margin-left: 7px; }
.ttoggle { background: transparent; border: none; color: var(--muted); cursor: pointer;
  padding: 0 4px 0 0; font-size: .8rem; width: 18px; line-height: 1; }
.ttoggle:hover { background: transparent; color: var(--copper); }
.tspacer { display: inline-block; width: 18px; }
.tmeta { color: var(--muted); font-size: .78rem; margin-left: 8px; opacity: .8; }
.tclose { margin-left: 7px; }

/* Diff */
.diff-inputs { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 620px) { .diff-inputs { grid-template-columns: 1fr; } }
.diff-inputs label { margin-top: 0; }
#panel-diff .toolbar { margin-top: 14px; }
.drow { display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap; padding: 6px 10px;
  border-radius: 8px; font-family: var(--mono); font-size: .86rem; margin-bottom: 4px; }
.dsign { font-weight: 700; width: 1ch; flex: none; }
.dpath { font-weight: 600; }
.dval { color: var(--ink); word-break: break-word; }
.dval.old { color: var(--bad); text-decoration: line-through; }
.dval.new { color: var(--ok); }
.darrow { color: var(--muted); }
.d-added { background: rgba(46,125,79,.10); } .d-added .dsign, .d-added .dpath { color: var(--ok); }
.d-removed { background: rgba(179,51,31,.10); } .d-removed .dsign, .d-removed .dpath { color: var(--bad); }
.d-changed { background: rgba(184,134,11,.10); } .d-changed .dsign, .d-changed .dpath { color: var(--warn); }

/* Explainer */
.note { margin: 34px 0 0; padding: 22px; background: var(--copper-tint); border: 1px solid var(--line);
  border-radius: var(--radius); }
.note h2 { margin: 0 0 8px; font-size: 1.15rem; }
.note p { margin: 0; color: var(--ink); font-size: .98rem; }