/* ============================================================
   Demo 3 — Buscador Inteligente & Base de Conocimiento Interna
   (RAG). Simulación 100% front-end (sin IA real, sin backend).
   Piezas específicas: search bar minimalista, trazas de RAG,
   tarjeta de respuesta y citas de fuente. Lo compartido con
   otras demos vive en demo-shared.css, enlazado antes de este
   archivo.
   ============================================================ */

/* LIVE DEMO SECTION */
.demo3-demo { padding-block: 24px 80px; }
.demo3-demo > .section-heading { margin-top: 8px; }
.demo3-demo > .section-sub { margin-bottom: 40px; }

.demo3-stage {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 720px;
  margin-inline: auto;
}

/* Minimalist search bar */
.demo3-search {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 26px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  box-shadow: 0 24px 60px -30px rgba(var(--accent-rgb), 0.35);
  transition: border-color 0.3s ease;
}
.demo3-search:focus-within,
.demo3-search.is-active { border-color: rgba(var(--accent-rgb), 0.4); }
.demo3-search__icon { color: var(--accent); flex-shrink: 0; display: flex; }
.demo3-search__text {
  flex: 1;
  font-size: 16px;
  color: var(--text-primary);
  min-height: 1.4em;
}
.demo3-search__text:empty::before { content: 'Preguntá lo que necesites…'; color: var(--text-muted); }
.demo3-search__meta { text-align: center; font-size: 12px; color: var(--text-muted); margin-top: -8px; }
.demo3-search__meta strong { color: var(--text-secondary); font-weight: 600; }

/* Trace chips (reuses .demo1-trace from demo-shared.css) */
.demo3-traces {
  display: flex;
  flex-direction: column;
  gap: 8px;
  align-items: flex-start;
  min-height: 4px;
}

/* Typewriter caret (reuses demo1-caret-blink keyframe from demo-shared.css) */
.demo3-typewriter.is-typing::after {
  content: '';
  display: inline-block;
  width: 2px; height: 15px;
  margin-left: 2px;
  background: var(--accent);
  vertical-align: -2px;
  animation: demo1-caret-blink 0.9s step-end infinite;
}

/* Answer card */
.demo3-answer {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 26px;
  opacity: 0;
  transform: translateY(14px) scale(0.99);
  transition: opacity 0.5s cubic-bezier(.2,.8,.2,1), transform 0.5s cubic-bezier(.2,.8,.2,1), border-color 0.3s ease;
}
.demo3-answer.is-visible { opacity: 1; transform: none; border-color: rgba(var(--accent-rgb), 0.3); }
.demo3-answer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 16px;
}
.demo3-answer__label {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 12px;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.demo3-guardrail {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
  background: rgba(62, 207, 142, 0.12);
  color: #3ecf8e;
  font-size: 11.5px;
  font-weight: 600;
}
.demo3-answer__text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-primary);
  min-height: 1.7em;
}

/* Citation chips */
.demo3-citations { display: flex; flex-wrap: wrap; gap: 10px; }
.demo3-citation {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  font-size: 12px;
  color: var(--text-secondary);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.2s ease, color 0.2s ease;
}
.demo3-citation.is-visible { opacity: 1; transform: none; }
.demo3-citation:hover { border-color: rgba(var(--accent-rgb), 0.4); color: var(--text-primary); }
.demo3-citation b { color: var(--accent); font-weight: 600; }

.demo3-continue-row {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding-block: 4px 8px;
}

.demo3-replay-row { display: flex; justify-content: center; margin-top: 4px; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .demo3-typewriter.is-typing::after { animation: none; }
  .demo3-answer,
  .demo3-citation,
  .demo3-search { transition: none; }
}

/* RESPONSIVE */
@media (max-width: 640px) {
  .demo3-search { padding: 16px 20px; border-radius: var(--radius-lg); }
  .demo3-answer { padding: 20px; }
}