/* ═══════════════════════════════════════════════════════════════════════════
   ERP Perú · Premium UI v3 (2026-05-18)
   ───────────────────────────────────────────────────────────────────────────
   Capa de visuales premium. NO sobreescribe Tailwind: añade utilities con
   prefijo .px-* / .fx-* y respeta prefers-reduced-motion.

   Tabla de contenido:
   · 1. Tokens (variables CSS por hora del día)
   · 2. Grain texture (ruido sutil de fondo)
   · 3. Animated gradient borders (.px-glow-border)
   · 4. 3D tilt cards (.px-tilt)
   · 5. Neon focus ring (.px-focus-neon, override accesible)
   · 6. Stagger entrance (.px-stagger > *)
   · 7. Reveal on scroll (.px-reveal)
   · 8. Command palette overlay (.px-cmdk)
   · 9. Confetti container
   · 10. Toast premium
   · 11. Particles toggle (.px-particles)
   · 12. Mouse glow follower (off por defecto)
   · 13. Print/reduced-motion
   ═══════════════════════════════════════════════════════════════════════════ */

/* ─── 1. Tokens dependientes de la hora ────────────────────────────────── */
:root {
  --px-grain-opacity: 0.04;
  --px-bg-from: #f8fafc;
  --px-bg-to:   #eef2ff;
  --px-glow:    rgb(var(--t-primary-rgb, 99 102 241) / 0.45);
}
/* JS aplica data-px-hora a <html> según la hora local */
[data-px-hora="madrugada"] {
  --px-bg-from: #0f172a; --px-bg-to: #1e1b4b;
  --px-grain-opacity: 0.07;
}
[data-px-hora="manana"]  { --px-bg-from: #fef3c7; --px-bg-to: #fde68a; }
[data-px-hora="tarde"]   { --px-bg-from: #ecfeff; --px-bg-to: #cffafe; }
[data-px-hora="noche"]   { --px-bg-from: #1e293b; --px-bg-to: #312e81; --px-grain-opacity: 0.06; }

/* ─── 2. Grain (ruido sutil de fondo) ──────────────────────────────────── */
.px-grain {
  position: relative;
}
.px-grain::after {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: var(--px-grain-opacity);
  /* SVG inline: ruido fractal, fina, no afecta clicks */
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0  0 0 0 0 0  0 0 0 0 0  0 0 0 0.5 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 200px 200px;
  mix-blend-mode: multiply;
}

/* ─── 3. Animated gradient borders ─────────────────────────────────────── */
.px-glow-border {
  position: relative;
  isolation: isolate;
  border-radius: 1.25rem;
  background: white;
}
.px-glow-border::before {
  content: '';
  position: absolute; inset: -2px;
  z-index: -1;
  border-radius: inherit;
  background: conic-gradient(
    from 0deg,
    rgb(var(--t-primary-rgb, 99 102 241)) 0deg,
    rgb(var(--t-accent-rgb, 99 102 241)) 90deg,
    rgb(var(--t-primary-rgb, 99 102 241)) 180deg,
    rgb(var(--t-accent-rgb, 99 102 241)) 270deg,
    rgb(var(--t-primary-rgb, 99 102 241)) 360deg
  );
  opacity: 0.55;
  animation: px-spin 6s linear infinite;
}

@keyframes px-spin {
  to { transform: rotate(1turn); }
}

/* ─── 4. 3D tilt (lo activa premium.js si no es touch) ─────────────────── */
.px-tilt {
  transition: transform .15s ease-out, box-shadow .2s ease-out;
  transform-style: preserve-3d;
  will-change: transform;
}
.px-tilt:hover {
  box-shadow: 0 18px 38px -10px rgb(var(--t-primary-rgb, 99 102 241) / 0.25);
}

/* ─── 5. Neon focus ring (override accesible — solo en :focus-visible) ── */
*:focus-visible {
  outline: 2px solid transparent;
  outline-offset: 2px;
  box-shadow:
    0 0 0 2px white,
    0 0 0 4px rgb(var(--t-primary-rgb, 99 102 241)),
    0 0 22px 6px rgb(var(--t-primary-rgb, 99 102 241) / 0.45) !important;
  transition: box-shadow .15s ease;
}

/* ─── 6. Stagger entrance (cada hijo aparece con delay progresivo) ─────── */
.px-stagger > * {
  opacity: 0;
  transform: translateY(8px);
  animation: px-fade-in .4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
.px-stagger > *:nth-child(1)  { animation-delay: 30ms; }
.px-stagger > *:nth-child(2)  { animation-delay: 60ms; }
.px-stagger > *:nth-child(3)  { animation-delay: 90ms; }
.px-stagger > *:nth-child(4)  { animation-delay: 120ms; }
.px-stagger > *:nth-child(5)  { animation-delay: 150ms; }
.px-stagger > *:nth-child(6)  { animation-delay: 180ms; }
.px-stagger > *:nth-child(7)  { animation-delay: 210ms; }
.px-stagger > *:nth-child(8)  { animation-delay: 240ms; }
.px-stagger > *:nth-child(9)  { animation-delay: 270ms; }
.px-stagger > *:nth-child(n+10) { animation-delay: 300ms; }

@keyframes px-fade-in {
  to { opacity: 1; transform: translateY(0); }
}

/* ─── 7. Reveal on scroll (Intersection Observer en premium.js) ────────── */
.px-reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s cubic-bezier(0.16, 1, 0.3, 1);
}
.px-reveal.is-revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ─── 8. Command palette overlay ───────────────────────────────────────── */
.px-cmdk-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.5);
  backdrop-filter: blur(8px) saturate(120%);
  -webkit-backdrop-filter: blur(8px) saturate(120%);
  z-index: 9990;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: 12vh;
}
.px-cmdk-panel {
  width: min(640px, 92vw);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(203, 213, 225, 0.7);
  border-radius: 1.25rem;
  box-shadow: 0 30px 80px -10px rgba(15, 23, 42, 0.45);
  overflow: hidden;
  animation: px-cmdk-in .18s ease-out;
}
.px-cmdk-input {
  width: 100%;
  font-size: 1rem;
  padding: 1rem 1.25rem;
  border: 0;
  background: transparent;
  outline: none;
  border-bottom: 1px solid #e2e8f0;
}
.px-cmdk-list {
  max-height: 50vh;
  overflow-y: auto;
}
.px-cmdk-item {
  display: flex;
  align-items: center;
  gap: .75rem;
  padding: .65rem 1.25rem;
  font-size: .85rem;
  cursor: pointer;
  border-bottom: 1px solid #f1f5f9;
}
.px-cmdk-item.is-active,
.px-cmdk-item:hover {
  background: rgb(var(--t-primary-rgb, 99 102 241) / 0.08);
}
.px-cmdk-icon {
  font-size: 1.1rem;
  width: 24px;
  text-align: center;
}
.px-cmdk-kbd {
  margin-left: auto;
  font-family: ui-monospace, monospace;
  font-size: .7rem;
  padding: .15rem .4rem;
  background: #f1f5f9;
  border: 1px solid #cbd5e1;
  border-bottom-width: 2px;
  border-radius: .35rem;
  color: #475569;
}
@keyframes px-cmdk-in {
  from { opacity: 0; transform: scale(.96) translateY(-6px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}

/* ─── 9. Confetti (canvas absoluto sobre la pantalla) ──────────────────── */
#px-confetti-canvas {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 9995;
}

/* ─── 10. Toast premium ────────────────────────────────────────────────── */
.px-toast {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  padding: .7rem 1rem;
  border-radius: .8rem;
  background: rgba(15, 23, 42, 0.92);
  backdrop-filter: blur(12px);
  color: white;
  font-size: .8rem;
  font-weight: 600;
  box-shadow: 0 12px 30px rgba(15, 23, 42, 0.4);
  z-index: 9999;
  display: flex; align-items: center; gap: .55rem;
  transform: translateY(150%); opacity: 0;
  transition: transform .28s cubic-bezier(0.16, 1, 0.3, 1), opacity .28s ease;
  pointer-events: none;
}
.px-toast.show { transform: translateY(0); opacity: 1; }

/* ─── 11. Particles canvas ─────────────────────────────────────────────── */
#px-particles-canvas {
  position: fixed; inset: 0;
  pointer-events: none;
  z-index: 0;
  opacity: 0.7;
}

/* ─── 12. Mouse glow follower (opt-in vía data-px-glow en <body>) ─────── */
.px-mouse-glow {
  position: fixed;
  pointer-events: none;
  width: 320px; height: 320px;
  margin-left: -160px; margin-top: -160px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--px-glow) 0%, transparent 70%);
  z-index: 5;
  mix-blend-mode: screen;
  opacity: 0;
  transition: opacity .25s ease;
  will-change: transform;
}
body[data-px-glow="1"] .px-mouse-glow { opacity: 1; }

/* ─── 13. Reducir animaciones si el usuario lo prefiere ────────────────── */
@media (prefers-reduced-motion: reduce) {
  .px-stagger > *,
  .px-reveal,
  .px-glow-border::before,
  .px-cmdk-panel,
  .px-toast {
    animation: none !important;
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }
}

/* High contrast mode automático */
@media (prefers-contrast: more) {
  *:focus-visible {
    box-shadow:
      0 0 0 3px white,
      0 0 0 6px black !important;
  }
}

/* Mobile: desactivar tilt + glow follower + grain pesado en pantallas chicas */
@media (max-width: 768px) {
  .px-tilt { transform: none !important; }
  .px-mouse-glow { display: none !important; }
  .px-grain::after { opacity: calc(var(--px-grain-opacity) * .5); }
}

/* Imprimible */
@media print {
  .px-grain::after, #px-particles-canvas, .px-mouse-glow,
  .px-toast, #px-confetti-canvas, .px-cmdk-overlay { display: none !important; }
}