/* INNOVAQ-AI v3 · Componentes base (Etapa 3)
   Design-system reutilizable: indicador de fuente de datos, skeletons,
   empty/error states, accesibilidad. Depende de las variables de tokens.css. */

/* ── Accesibilidad: foco visible consistente ──────────────────────── */
:where(a, button, [tabindex], input, select, textarea, .sb-link, .demo-tab):focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
  border-radius: var(--r-sm);
}

/* ── Indicador de fuente de datos (topbar) ────────────────────────── */
.topbar .data-source {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-size: 11px; font-weight: 500;
  background: var(--bg-3); color: var(--ink-2);
  white-space: nowrap;
  transition: background-color 300ms ease, color 300ms ease;
}
.topbar .data-source .ds-dot {
  width: 7px; height: 7px; border-radius: var(--r-full);
  background: var(--ink-4); flex: none;
}
.topbar .data-source[data-state="live"]  { background: var(--success-soft); color: var(--success); }
.topbar .data-source[data-state="live"]  .ds-dot { background: var(--success); box-shadow: 0 0 0 3px var(--success-soft); animation: ds-pulse 2.4s ease-in-out infinite; }
.topbar .data-source[data-state="stale"] { background: var(--warning-soft); color: var(--warning); }
.topbar .data-source[data-state="stale"] .ds-dot { background: var(--warning); }
.topbar .data-source[data-state="demo"]  { background: var(--info-soft); color: var(--info); }
.topbar .data-source[data-state="demo"]  .ds-dot { background: var(--info); }
.topbar .data-source[data-state="loading"] { color: var(--ink-3); }
.topbar .data-source[data-state="loading"] .ds-dot { background: var(--ink-4); animation: ds-blink 1s steps(2, start) infinite; }

@keyframes ds-pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.45; } }
@keyframes ds-blink { 50% { opacity: 0.25; } }

/* ── Skeletons (estado de carga) ──────────────────────────────────── */
.skeleton {
  position: relative; overflow: hidden;
  background: var(--bg-2); border-radius: var(--r-sm);
}
.skeleton::after {
  content: ""; position: absolute; inset: 0;
  transform: translateX(-100%);
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent);
  animation: skel-shimmer 1.3s infinite;
}
@keyframes skel-shimmer { 100% { transform: translateX(100%); } }
.skel-line { height: 12px; margin: 8px 0; }
.skel-line.sm { width: 40%; } .skel-line.md { width: 65%; } .skel-line.lg { width: 90%; }
.skel-block { height: 80px; }
.skel-stack { padding: 16px; }

/* ── Empty / Error states ─────────────────────────────────────────── */
.empty-state, .error-state {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  gap: 6px; padding: 40px 24px; color: var(--ink-3);
}
.empty-state .es-ico, .error-state .es-ico {
  width: 44px; height: 44px; border-radius: var(--r-full);
  display: grid; place-items: center; margin-bottom: 6px;
  background: var(--bg-3); color: var(--ink-3); font-size: 20px;
}
.error-state .es-ico { background: var(--danger-soft); color: var(--danger); }
.empty-state .es-title, .error-state .es-title { color: var(--ink); font-size: 14px; font-weight: 600; }
.empty-state .es-sub, .error-state .es-sub { font-size: 12.5px; max-width: 380px; line-height: 1.5; }
.empty-state .es-action, .error-state .es-action { margin-top: 10px; }

/* ── Reduced motion ───────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .skeleton::after,
  .topbar .data-source .ds-dot { animation: none !important; }
}

/* ── Topbar compacta en pantallas estrechas ───────────────────────── */
@media (max-width: 760px) {
  .topbar .data-source .ds-label { display: none; }     /* deja solo el punto */
  .topbar .data-source { padding: 4px 8px; }
}