:root {
  --bg: #0f1115;
  --panel: #171a21;
  --border: #2a2f3a;
  --text: #d7dae0;
  --muted: #8b93a3;
  --accent: #6ea8fe;
  --mask: #f2b880;
  --commit: #7ee29a;
  --bad: #f28b82;
  font-size: 16px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;
  line-height: 1.5;
}

header, main, footer {
  max-width: 60rem;
  margin: 0 auto;
  padding: 1rem 1.25rem;
}

.header-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
}

h1 { margin: 0.25rem 0; font-size: 1.4rem; }
.subtitle { color: var(--muted); font-weight: normal; font-size: 1rem; }
.model-info { color: var(--muted); font-size: 0.85rem; margin: 0.25rem 0 0; }

.github-link {
  flex: 0 0 auto;
  color: var(--muted);
  font-size: 0.85rem;
  text-decoration: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.3rem 0.6rem;
  white-space: nowrap;
}
.github-link:hover { color: var(--text); border-color: var(--accent); }

h2 { font-size: 1rem; color: var(--accent); margin: 0 0 0.75rem; }

.panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 1rem 1.25rem;
  margin-bottom: 1rem;
}

.hint { color: var(--muted); font-size: 0.85rem; margin: 0.25rem 0 0.75rem; }
.topic { color: var(--muted); font-size: 0.9rem; margin: 0.75rem 0 0.25rem; }

.picker-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.picker-controls .or { color: var(--muted); padding: 0 0.25rem; }
label { color: var(--muted); font-size: 0.85rem; }

select, input, button {
  background: #1e232d;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.35rem 0.6rem;
  font: inherit;
  font-size: 0.85rem;
}
input[type="number"] { width: 7rem; }
button { cursor: pointer; }
button:hover:not(:disabled) { border-color: var(--accent); }
button:disabled { opacity: 0.5; cursor: default; }
button.primary { background: #23406e; border-color: var(--accent); }

.source {
  background: #10131a;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  overflow-x: auto;
  margin: 0.5rem 0 0;
}

.token-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
  padding: 0.5rem 0 0.75rem;
}
.chip {
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  font-size: 0.9rem;
}
.chip.masked { color: var(--mask); border-color: var(--mask); }
.chip.special { opacity: 0.45; cursor: default; }
.chip.committed { color: var(--commit); border-color: var(--commit); }

.mask-controls {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

.trajectory { display: flex; flex-direction: column; gap: 0.6rem; }
.step-row { border-left: 2px solid var(--border); padding-left: 0.75rem; }
.step-label { color: var(--muted); font-size: 0.8rem; margin-bottom: 0.15rem; }
.seq-line { display: flex; flex-wrap: wrap; gap: 0.35rem; }
.tok { color: var(--text); }
.tok.masked { color: var(--mask); }
.tok.committed { color: var(--commit); font-weight: bold; }

.verdict { margin-top: 0.75rem; display: flex; flex-direction: column; gap: 0.25rem; }
.verdict-item.ok { color: var(--commit); }
.verdict-item.bad { color: var(--bad); }

.honesty {
  color: var(--muted);
  font-size: 0.8rem;
  border-top: 1px dashed var(--border);
  margin-top: 0.9rem;
  padding-top: 0.6rem;
}

footer p { color: var(--muted); font-size: 0.8rem; }
code { color: var(--accent); overflow-wrap: break-word; }

@media (max-width: 640px) {
  :root { font-size: 15px; }

  header, main, footer { padding: 0.75rem 1rem; }

  h1 { font-size: 1.2rem; }
  .subtitle { display: block; font-size: 0.85rem; }

  .panel { padding: 0.85rem 1rem; }

  .picker-controls,
  .mask-controls {
    align-items: stretch;
  }
  .picker-controls select,
  .picker-controls input,
  .picker-controls button,
  .mask-controls select,
  .mask-controls input,
  .mask-controls button {
    flex: 1 1 auto;
    min-width: 0;
  }
  input[type="number"] { width: auto; }

  .token-strip { gap: 0.25rem; }
  .chip { font-size: 0.85rem; padding: 0.2rem 0.4rem; }

  .seq-line { gap: 0.25rem; }
}