/*
 * Shared styling for the "Try it" interactive demos.
 * Loaded via <link rel="stylesheet" href="../lib/demo.css">. Uses the same
 * palette as every explainer; falls back to literal colours if the page does
 * not define the CSS variables.
 */
.demo {
  --d-accent: var(--accent, #C4622D);
  --d-bg: var(--bg, #F9F7F3);
  --d-text: var(--text, rgb(21, 20, 20));
  --d-muted: var(--muted, rgba(21, 20, 20, 0.48));
  --d-hair: rgba(21, 20, 20, 0.12);
  margin: 2rem 0;
  background: rgba(196, 98, 45, 0.05);
  border: 1px solid rgba(196, 98, 45, 0.28);
  border-radius: 6px;
  padding: 1.5rem 1.5rem 1.6rem;
}

.demo-title {
  font-size: 0.72rem;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: var(--d-accent);
  font-weight: 700;
  margin-bottom: 1rem;
}

.demo-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem 1.25rem;
  margin-bottom: 1.1rem;
}

.demo-field { display: flex; flex-direction: column; gap: 0.3rem; }
.demo-field.grow { flex: 1 1 14rem; }
.demo-field label {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--d-muted);
  font-weight: 700;
}
.demo-field .val { color: var(--d-accent); font-family: 'Courier New', monospace; }

.demo input[type="text"] {
  font: inherit;
  font-size: 0.9rem;
  padding: 0.45rem 0.6rem;
  border: 1px solid rgba(196, 98, 45, 0.4);
  border-radius: 5px;
  background: var(--d-bg);
  color: var(--d-text);
  width: 100%;
}
.demo input[type="text"]:focus { outline: 2px solid rgba(196, 98, 45, 0.35); outline-offset: 1px; }

.demo input[type="range"] { accent-color: var(--d-accent); width: 11rem; max-width: 100%; }
.demo select {
  font: inherit; font-size: 0.85rem; padding: 0.35rem 0.5rem;
  border: 1px solid rgba(196, 98, 45, 0.4); border-radius: 5px;
  background: var(--d-bg); color: var(--d-text);
}

.demo button {
  font: inherit;
  font-size: 0.82rem;
  font-weight: 650;
  cursor: pointer;
  padding: 0.5rem 0.95rem;
  border: 1px solid var(--d-accent);
  border-radius: 5px;
  background: var(--d-accent);
  color: #fff;
}
.demo button.secondary { background: var(--d-bg); color: var(--d-accent); }
.demo button:hover { filter: brightness(1.05); }
.demo button:active { transform: translateY(1px); }

.demo-output {
  background: var(--d-bg);
  border: 1px solid var(--d-hair);
  border-radius: 5px;
  padding: 0.85rem 1rem;
  font-family: 'Courier New', monospace;
  font-size: 0.82rem;
  line-height: 1.6;
  white-space: pre-wrap;
  word-break: break-word;
  min-height: 2rem;
}
.demo-output .hl { color: var(--d-accent); font-weight: bold; }
.demo-output .dim { color: var(--d-muted); }

.demo-sublabel {
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--d-muted);
  font-weight: 700;
  margin: 1rem 0 0.4rem;
}

/* "Your own text" panel (injected by NLP.demo.customCorpus) */
.demo-custom { margin: -0.2rem 0 1.1rem; }
.demo-custom textarea {
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  line-height: 1.5;
  width: 100%;
  padding: 0.6rem 0.7rem;
  border: 1px solid rgba(196, 98, 45, 0.4);
  border-radius: 5px;
  background: var(--d-bg);
  color: var(--d-text);
  resize: vertical;
}
.demo-custom textarea:focus { outline: 2px solid rgba(196, 98, 45, 0.35); outline-offset: 1px; }
.demo-custom-row { display: flex; flex-wrap: wrap; align-items: center; gap: 0.6rem 1rem; margin-top: 0.5rem; }
.demo-custom-file {
  font-size: 0.78rem;
  color: var(--d-accent);
  font-weight: 650;
  cursor: pointer;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.demo-custom-file input[type="file"] { display: none; }
.demo-custom-note { font-size: 0.76rem; color: var(--d-muted); line-height: 1.55; margin: 0.45rem 0 0; }
.demo-custom-note.warn { color: var(--d-accent); }

.demo-hint { font-size: 0.85rem; color: var(--d-text); line-height: 1.6; }
.demo-hint code {
  background: rgba(21, 20, 20, 0.06);
  padding: 0.05rem 0.3rem;
  border-radius: 3px;
  font-size: 0.85em;
}
.demo-err { color: var(--d-muted); font-size: 0.78rem; }

/* accessibility: visible keyboard focus + respect reduced-motion */
.demo button:focus-visible,
.demo select:focus-visible,
.demo input:focus-visible { outline: 2px solid var(--d-accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  .demo *, .demo *::before, .demo *::after { transition: none !important; }
}