/* Palette validated against the dark chart surface with the data-viz
   validator. Human/AI is the one categorical pair carrying meaning and it
   clears every colour-vision gate; model identity is carried by labels. */
:root {
  color-scheme: dark;
  --plane:     #0d0d0d;
  --surface:   #1a1a19;
  --surface-2: #232322;
  --ink:       #ffffff;
  --ink-2:     #c3c2b7;
  --ink-muted: #898781;
  --grid:      #2c2c2a;
  --baseline:  #383835;
  --border:    rgba(255, 255, 255, 0.10);

  --human:    #199e70;
  --ai:       #9085e9;
  --critical: #d03b3b;
  --good:     #0ca30c;
  --warning:  #fab219;

  --radius: 12px;
  --sans: system-ui, -apple-system, "Segoe UI", sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  font-family: var(--sans);
  background: var(--plane);
  color: var(--ink-2);
  min-height: 100vh;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

.container { max-width: 860px; margin: 0 auto; padding: 48px 24px 80px; }

.masthead { margin-bottom: 36px; }
.masthead h1 {
  font-size: clamp(1.6rem, 4vw, 2.1rem);
  font-weight: 700; letter-spacing: -0.02em;
  color: var(--ink); margin-bottom: 6px;
}
.masthead .tagline { color: var(--ink-muted); font-size: 0.95rem; }
.masthead a { color: inherit; text-decoration: none; }

nav.crumbs {
  display: flex; gap: 4px; flex-wrap: wrap;
  margin-bottom: 28px; border-bottom: 1px solid var(--border);
}
nav.crumbs a {
  padding: 9px 14px; font-size: 0.88rem; color: var(--ink-muted);
  text-decoration: none; border-bottom: 2px solid transparent;
  margin-bottom: -1px; transition: color .15s, border-color .15s;
}
nav.crumbs a:hover { color: var(--ink-2); }
nav.crumbs a.active { color: var(--ink); border-bottom-color: var(--ai); }

.panel {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 20px;
}
.section-title {
  font-size: 0.78rem; font-weight: 600; text-transform: uppercase;
  letter-spacing: 0.09em; color: var(--ink-muted); margin: 36px 0 14px;
}

textarea {
  width: 100%; min-height: 190px; padding: 15px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 10px; color: var(--ink); font-size: 0.98rem;
  font-family: inherit; line-height: 1.6; resize: vertical;
  transition: border-color .15s;
}
textarea:focus { outline: none; border-color: var(--ai); }
textarea::placeholder { color: #5c5b57; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 24px; background: var(--ai); color: #12111c;
  border: none; border-radius: 9px; font-size: 0.95rem; font-weight: 650;
  font-family: inherit; cursor: pointer; transition: filter .15s;
}
.btn:hover { filter: brightness(1.1); }
.btn:disabled { opacity: .55; cursor: progress; }
.btn-quiet {
  background: var(--surface-2); color: var(--ink-2);
  border: 1px solid var(--border); text-decoration: none;
}
.btn-quiet:hover { background: #2c2c2a; color: var(--ink); }

/* Identity is never colour-alone: the swatch sits beside its label. */
.tok { display: inline-flex; align-items: center; gap: 6px; font-weight: 650; }
.tok::before {
  content: ""; width: 9px; height: 9px; border-radius: 2px;
  background: currentColor; flex-shrink: 0;
}
.tok-human { color: var(--human); }
.tok-ai    { color: var(--ai); }

table.data { width: 100%; border-collapse: collapse; font-size: 0.88rem; }
table.data th {
  text-align: left; padding: 8px 12px; font-size: 0.72rem; font-weight: 600;
  text-transform: uppercase; letter-spacing: .07em; color: var(--ink-muted);
  border-bottom: 1px solid var(--baseline);
}
table.data td {
  padding: 10px 12px; border-bottom: 1px solid var(--grid);
  font-variant-numeric: tabular-nums;
}
table.data td:first-child { color: var(--ink); font-variant-numeric: normal; }
table.data tr:last-child td { border-bottom: none; }

.muted { color: var(--ink-muted); font-size: 0.85rem; }
.footnote {
  margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--border);
  color: var(--ink-muted); font-size: 0.8rem;
}
.footnote a { color: var(--ink-2); }

.notice {
  border-radius: 9px; padding: 12px 15px; margin-bottom: 18px;
  font-size: 0.9rem; border: 1px solid;
}
.notice-error { background: rgba(208,59,59,.10); border-color: rgba(208,59,59,.4); color: #f0a3a3; }
.notice-info  { background: rgba(144,133,233,.08); border-color: rgba(144,133,233,.3); color: var(--ink-2); }

@media (max-width: 620px) { .container { padding: 28px 16px 60px; } }