/* =========================================================================
   STRATUM DYNAMICS — animations.css
   Movimiento sutil y con propósito. Se carga DESPUÉS de style.css.
   Solo anima transform/opacity (GPU, no afecta velocidad ni CLS).
   Todo se desactiva con prefers-reduced-motion.
   ========================================================================= */
:root {
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-slow: 700ms;
}

/* ---------- 1. Un solo momento orquestado: entrada del hero ---------- */
@keyframes rise { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
@keyframes draw { from { transform: scaleX(0); } to { transform: scaleX(1); } }

.hero-copy > * { animation: rise var(--dur-slow) var(--ease-out) both; }
.hero-copy > :nth-child(1) { animation-delay: 60ms; }
.hero-copy > :nth-child(2) { animation-delay: 140ms; }
.hero-copy > :nth-child(3) { animation-delay: 220ms; }
.hero-copy > :nth-child(4) { animation-delay: 300ms; }
.hero-copy > :nth-child(5) { animation-delay: 380ms; }
.hero-panel { animation: rise 900ms var(--ease-out) 200ms both; }
.hero-trust { position: relative; border-top-color: transparent; }
.hero-trust::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 1px;
  background: var(--border-inverse); transform-origin: left;
  animation: draw 1100ms var(--ease-out) 450ms both;
}

/* ---------- 2. Revelado al hacer scroll (solo cabeceras y bloques clave) ---------- */
.js .reveal { opacity: 0; transform: translateY(12px); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* ---------- 3. Microinteracciones que responden a la acción ---------- */
.main-nav ul a { position: relative; padding-block: 4px; }
.main-nav ul a::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px;
  background: currentColor; transform: scaleX(0); transform-origin: left;
  transition: transform 260ms var(--ease-out);
}
.main-nav ul a:hover::after { transform: scaleX(1); }
.btn { transition: background var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform 200ms var(--ease-out); }
.btn:active { transform: translateY(1px); }
.whatsapp-fab { transition: transform 200ms var(--ease-out), background var(--transition-fast); }
.consent-banner.is-visible { animation: rise 500ms var(--ease-out) both; }
.form-field input, .form-field select, .form-field textarea { transition: border-color 200ms ease, box-shadow 200ms ease; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus { box-shadow: 0 0 0 3px rgba(130, 125, 113, 0.25); }

/* ---------- 4. Servicios: menú de pastillas + escenario con imagen de fondo ---------- */
.svc { display: grid; grid-template-columns: minmax(280px, 0.78fr) 1.7fr; gap: var(--space-4); align-items: start; }

/* Menú: cada servicio es un botón de bordes curvos */
.svc-menu { display: none; flex-direction: column; gap: 12px; padding-block: 6px; }
.js .svc-menu { display: flex; }
.svc-tab {
  display: flex; align-items: center; gap: 14px; text-align: left;
  padding: 1rem 1.5rem; border-radius: 40px;
  background: var(--color-white); color: var(--text-primary);
  border: 1.5px solid var(--border-subtle);
  font-family: var(--font-display); font-size: 1rem; line-height: 1.2;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
  transition: transform 380ms var(--ease-out), box-shadow 380ms var(--ease-out),
              background 300ms ease, color 300ms ease, border-color 300ms ease;
}
.svc-tab .svc-num { font-size: var(--fs-small); color: var(--color-murky); transition: color 300ms ease; }
.svc-tab .svc-name { flex: 1; }
.svc-tab::after { /* punto indicador del servicio activo */
  content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--color-flour);
  transform: scale(0); transition: transform 400ms var(--ease-out);
}
.svc-tab:hover { transform: translateX(8px) scale(1.025); border-color: var(--color-murky); box-shadow: 0 12px 28px -12px rgba(0, 0, 0, 0.4); }
.svc-tab[aria-selected="true"] {
  background: var(--color-negro); color: var(--color-flour); border-color: var(--color-negro);
  transform: translateX(14px); box-shadow: 0 16px 34px -14px rgba(0, 0, 0, 0.6);
}
.svc-tab[aria-selected="true"] .svc-num { color: var(--color-murky-soft); }
.svc-tab[aria-selected="true"]::after { transform: scale(1); }
.svc-tab[aria-selected="true"]:hover { transform: translateX(14px) scale(1.02); }

/* Escenario: imagen de fondo + texto encima, con velo para garantizar legibilidad */
.svc-stage {
  display: flex; flex-direction: column; gap: var(--space-2);
  position: relative; border-radius: 24px; overflow: hidden; background: var(--color-negro);
  border: 1px solid var(--border-inverse); box-shadow: 0 30px 60px -34px rgba(0, 0, 0, 0.55);
}
.js .svc-stage { display: grid; min-height: 400px; }
.svc-slide { position: relative; display: grid; min-height: 400px; overflow: hidden; }
.svc-slide::before { /* velo oscuro: el texto siempre contrasta con la imagen */
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(90deg, rgba(0,0,0,.93) 0%, rgba(0,0,0,.84) 55%, rgba(0,0,0,.4) 80%, rgba(0,0,0,0) 100%);
}
.svc-copy { position: relative; z-index: 2; align-self: center; max-width: 540px; padding: var(--space-4) var(--space-4) var(--space-3); color: var(--color-flour); }
.svc-copy h3 { font-size: clamp(1.4rem, 2vw + 0.8rem, 2rem); color: var(--color-flour); margin-bottom: var(--space-1); }
.svc-copy .svc-problem { font-size: var(--fs-small); color: var(--color-murky-soft); }
.svc-copy .svc-problem strong { color: var(--color-flour); }
.svc-copy .svc-desc { color: var(--color-flour); opacity: 0.92; margin-bottom: var(--space-2); }
.btn-pill { border-radius: 999px; padding-inline: 1.8rem; }
.btn-pill:hover { transform: translateY(-2px); box-shadow: 0 10px 24px -10px rgba(0, 0, 0, 0.6); }

.svc-art { position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; }
.svc-art .p { transition: opacity 600ms var(--ease-out), transform 800ms var(--ease-out); }

/* Cambio de servicio (solo con JS) */
.js .svc-slide {
  grid-area: 1 / 1; visibility: hidden; opacity: 0; clip-path: inset(0 0 0 9%); z-index: 0;
  transition: opacity 600ms var(--ease-out), clip-path 900ms var(--ease-out), visibility 0s linear 650ms;
}
.js .svc-slide.is-active { visibility: visible; opacity: 1; clip-path: inset(0); z-index: 1; transition-delay: 0s; }
.js .svc-art { transform: scale(1.09); transition: transform 1800ms var(--ease-out); }
.js .svc-slide.is-active .svc-art { transform: none; }
.js .svc-art .p { opacity: 0; transform: translateY(18px); }
.js .svc-slide.is-active .svc-art .p { opacity: 1; transform: none; transition-delay: calc(var(--i) * 80ms + 250ms); }
.js .svc-copy > * { opacity: 0; transform: translateY(14px); transition: opacity 500ms var(--ease-out), transform 700ms var(--ease-out); }
.js .svc-slide.is-active .svc-copy > * { opacity: 1; transform: none; }
.js .svc-slide.is-active .svc-copy > :nth-child(1) { transition-delay: 280ms; }
.js .svc-slide.is-active .svc-copy > :nth-child(2) { transition-delay: 380ms; }
.js .svc-slide.is-active .svc-copy > :nth-child(3) { transition-delay: 480ms; }
.js .svc-slide.is-active .svc-copy > :nth-child(4) { transition-delay: 580ms; }

/* Al llegar al formulario desde un servicio, se resalta el campo ya preseleccionado */
.form-field.is-prefilled select { border-color: var(--color-negro); box-shadow: 0 0 0 4px rgba(130, 125, 113, 0.4); }

@media (max-width: 900px) {
  .svc { grid-template-columns: 1fr; gap: var(--space-3); }
  .js .svc-menu { flex-direction: row; overflow-x: auto; scroll-snap-type: x proximity; gap: 10px; padding: 6px 2px 10px; scrollbar-width: none; }
  .svc-menu::-webkit-scrollbar { display: none; }
  .svc-tab { flex: 0 0 auto; white-space: nowrap; scroll-snap-align: center; padding: 0.8rem 1.2rem; border-radius: 999px; }
  .svc-tab:hover, .svc-tab[aria-selected="true"], .svc-tab[aria-selected="true"]:hover { transform: none; }
  .svc-tab::after { display: none; }
  .js .svc-stage { min-height: 0; }
  .svc-slide::before { background: linear-gradient(0deg, rgba(0,0,0,.94) 0%, rgba(0,0,0,.82) 55%, rgba(0,0,0,.35) 100%); }
  .svc-copy { padding: var(--space-4) var(--space-3) var(--space-3); max-width: none; }
}

/* ---------- 4a. Servicios: título sobre el menú, información al lado (ahorra altura) ---------- */
#servicios.section { padding-block: var(--space-5); }
.svc { align-items: stretch; }
.svc-side { display: flex; flex-direction: column; justify-content: center; }
.svc-side .section-head { margin-bottom: var(--space-2); max-width: none; }
@media (min-width: 901px) {
  .svc-menu { gap: 10px; padding-block: 4px; }
  .svc-tab { padding: 0.85rem 1.4rem; }
  .js .svc-stage { min-height: 420px; }
}

/* ---------- 4b. Sobre nosotros: relleno que sube al pasar el cursor ---------- */
.about-pillars { gap: 0; border-bottom: 1px solid var(--border-subtle); }
.pillar {
  position: relative; overflow: hidden;
  /* el margen negativo + padding permite que el relleno sobresalga sin mover el texto ni re-acomodar líneas */
  margin-inline: -1.4rem; padding: 1.6rem 1.4rem;
  transition: color 400ms var(--ease-out);
}
.pillar::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background: var(--color-negro);
  transform: scaleY(0); transform-origin: bottom;
  transition: transform 500ms var(--ease-out);
}
.pillar > * { position: relative; z-index: 1; transition: transform 500ms var(--ease-out), color 400ms var(--ease-out); }
.pillar h3 { margin-bottom: 0.5rem; }
@media (hover: hover) {
  .pillar:hover { color: var(--color-flour); }
  .pillar:hover::before { transform: scaleY(1); }
  .pillar:hover > * { transform: translateX(0.6rem); }
  .pillar:hover p { color: rgba(234, 231, 220, 0.8); }
}

/* ---------- 5. Movimiento reducido: todo estático ---------- */
@media (prefers-reduced-motion: reduce) {
  .hero-copy > *, .hero-panel, .hero-trust::before, .consent-banner.is-visible { animation: none !important; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  .pillar, .pillar::before, .pillar > * { transition: none !important; }
  .svc-tab, .svc-slide, .svc-art, .svc-art .p, .svc-copy > * { transition: none !important; }
  .js .svc-slide { clip-path: none; }
  .js .svc-art { transform: none; }
}