/* ============================================================================
   VALIDACIONES UX
   Microinteracciones y refinamientos de UX. Todo opt-in mediante clases.
   Respeta prefers-reduced-motion.
   ========================================================================== */

:root {
  --vx-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --vx-primary: #337A1A;
  --vx-primary-deep: #2A6315;
  --vx-gold: #B08D3F;
  --vx-danger: #E74C3C;
  --vx-success: #2D8B5C;
  --vx-info: #2C6FA8;
  --vx-warning: #C68A3F;
  --vx-ink: #1A1A1A;
  --vx-paper: #FFFFFF;
  --vx-line: #E5E5E5;
}

/* ──────────────────────────────────────────────────────────────
   1. SISTEMA DE TOASTS
   ────────────────────────────────────────────────────────────── */
.vx-toast-stack {
  position: fixed;
  top: 92px;
  right: 24px;
  z-index: 4000;
  display: flex;
  flex-direction: column;
  gap: 10px;
  pointer-events: none;
  max-width: min(360px, calc(100vw - 32px));
}

.vx-toast {
  pointer-events: auto;
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px 14px 14px;
  background: var(--vx-paper);
  border-radius: 10px;
  border-left: 4px solid var(--vx-info);
  box-shadow: 0 14px 36px -16px rgba(0, 0, 0, 0.32),
              0 4px 12px -8px rgba(0, 0, 0, 0.18);
  font-family: "Montserrat", -apple-system, "Segoe UI", Roboto, sans-serif;
  font-size: 14px;
  color: var(--vx-ink);
  line-height: 1.4;
  opacity: 0;
  transform: translateX(24px);
  transition: opacity 320ms var(--vx-ease), transform 320ms var(--vx-ease);
  position: relative;
  overflow: hidden;
}

.vx-toast.is-visible {
  opacity: 1;
  transform: translateX(0);
}

.vx-toast.is-leaving {
  opacity: 0;
  transform: translateX(24px);
}

.vx-toast--success { border-left-color: var(--vx-success); }
.vx-toast--error   { border-left-color: var(--vx-danger); }
.vx-toast--warning { border-left-color: var(--vx-warning); }
.vx-toast--info    { border-left-color: var(--vx-info); }

.vx-toast__icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-size: 18px;
  line-height: 1;
  margin-top: 1px;
}

.vx-toast--success .vx-toast__icon { color: var(--vx-success); }
.vx-toast--error   .vx-toast__icon { color: var(--vx-danger); }
.vx-toast--warning .vx-toast__icon { color: var(--vx-warning); }
.vx-toast--info    .vx-toast__icon { color: var(--vx-info); }

.vx-toast__body {
  flex: 1;
  min-width: 0;
  word-wrap: break-word;
}

.vx-toast__close {
  flex-shrink: 0;
  background: transparent;
  border: none;
  color: rgba(0, 0, 0, 0.45);
  cursor: pointer;
  font-size: 18px;
  line-height: 1;
  padding: 2px 4px;
  border-radius: 4px;
  transition: color 180ms ease, background-color 180ms ease;
}

.vx-toast__close:hover {
  color: var(--vx-ink);
  background: rgba(0, 0, 0, 0.06);
}

@media (max-width: 560px) {
  .vx-toast-stack {
    top: 78px;
    right: 12px;
    left: 12px;
    max-width: none;
  }
}

/* ──────────────────────────────────────────────────────────────
   2. TRANSICIONES SPA
   Solo opacity (sin transform → no fuerza re-layout) y duración corta.
   Si la clase no llega a aplicarse, la página queda visible (opacity:1).
   ────────────────────────────────────────────────────────────── */
.vx-page {
  /* visible por defecto: si algo falla con la animación la página sigue viéndose */
}

.vx-page.is-entering {
  animation: vx-page-enter 220ms var(--vx-ease) both;
}

@keyframes vx-page-enter {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ──────────────────────────────────────────────────────────────
   3. VALIDACIÓN VISUAL DE FORMULARIOS
   Marcas: data-vx-validate en el form, .vx-field en el wrapper.
   ────────────────────────────────────────────────────────────── */
.vx-field,
.form-group.vx-field {
  position: relative;
}

/* Slot del icono de check/cross al final del input */
.vx-field input,
.vx-field textarea {
  padding-right: 40px;
  transition: border-color 220ms var(--vx-ease), box-shadow 220ms var(--vx-ease);
}

.vx-field__indicator {
  position: absolute;
  top: 38px;
  right: 12px;
  width: 22px;
  height: 22px;
  display: grid;
  place-items: center;
  font-size: 14px;
  border-radius: 50%;
  opacity: 0;
  transform: scale(0.6);
  pointer-events: none;
  transition: opacity 220ms var(--vx-ease) 60ms,
              transform 220ms var(--vx-ease) 60ms,
              background-color 220ms var(--vx-ease),
              color 220ms var(--vx-ease);
}

.vx-field--valid .vx-field__indicator {
  opacity: 1;
  transform: scale(1);
  background: rgba(45, 139, 92, 0.12);
  color: var(--vx-success);
  transition-delay: 300ms;
}

.vx-field--invalid .vx-field__indicator {
  opacity: 1;
  transform: scale(1);
  background: rgba(231, 76, 60, 0.12);
  color: var(--vx-danger);
}

.vx-field--valid input,
.vx-field--valid textarea {
  border-color: var(--vx-success);
}

.vx-field--invalid input,
.vx-field--invalid textarea {
  border-color: var(--vx-danger);
}

/* Variante específica del booking step 1: borde verde estilizado al validar */
.booking-field--valid input,
.booking-field--valid select,
.booking-field--valid textarea {
  border-color: var(--vx-primary);
  box-shadow: 0 0 0 1px rgba(51, 122, 26, 0.4);
  transition: border-color 200ms var(--vx-ease), box-shadow 200ms var(--vx-ease);
}

.booking-field--invalid input,
.booking-field--invalid select,
.booking-field--invalid textarea {
  border-color: var(--vx-danger);
  box-shadow: 0 0 0 1px rgba(231, 76, 60, 0.4);
  transition: border-color 200ms var(--vx-ease), box-shadow 200ms var(--vx-ease);
}

/* Focus refinado: ring verde 3px */
.vx-field input:focus,
.vx-field textarea:focus,
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--vx-primary);
  box-shadow: 0 0 0 3px rgba(51, 122, 26, 0.25);
}

.vx-field--invalid input:focus,
.vx-field--invalid textarea:focus {
  box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.22);
  border-color: var(--vx-danger);
}

.vx-field__error {
  display: none;
  margin-top: 6px;
  font-size: 12px;
  color: var(--vx-danger);
  font-weight: 500;
  line-height: 1.4;
}

.vx-field--invalid .vx-field__error {
  display: block;
  animation: vx-error-in 240ms var(--vx-ease);
}

@keyframes vx-error-in {
  from { opacity: 0; transform: translateY(-2px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Autofill: evitar el fondo amarillo del navegador */
.vx-field input:-webkit-autofill,
.vx-field textarea:-webkit-autofill,
.form-group input:-webkit-autofill,
.form-group textarea:-webkit-autofill {
  -webkit-text-fill-color: var(--vx-ink);
  -webkit-box-shadow: 0 0 0 1000px var(--vx-paper) inset;
  transition: background-color 100000s ease-in-out 0s;
  caret-color: var(--vx-ink);
}

/* ──────────────────────────────────────────────────────────────
   4. DRAWER STAGGER de los resultados
   ────────────────────────────────────────────────────────────── */
.booking-drawer--v2 .bds__item.vx-stagger {
  opacity: 0;
  transform: translateY(8px);
  animation: vx-stagger-in 0.45s var(--vx-ease) both;
}

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

.booking-drawer--v2 .bds__item.vx-stagger:nth-child(1)  { animation-delay: 0ms; }
.booking-drawer--v2 .bds__item.vx-stagger:nth-child(2)  { animation-delay: 60ms; }
.booking-drawer--v2 .bds__item.vx-stagger:nth-child(3)  { animation-delay: 120ms; }
.booking-drawer--v2 .bds__item.vx-stagger:nth-child(4)  { animation-delay: 180ms; }
.booking-drawer--v2 .bds__item.vx-stagger:nth-child(5)  { animation-delay: 240ms; }
.booking-drawer--v2 .bds__item.vx-stagger:nth-child(6)  { animation-delay: 300ms; }
.booking-drawer--v2 .bds__item.vx-stagger:nth-child(n+7){ animation-delay: 360ms; }

/* Skeleton cards de resultados con shimmer */
.bds__skeletons {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.bds__skeleton-card {
  height: 240px;
  border-radius: 18px;
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.05) 0%,
    rgba(0, 0, 0, 0.10) 50%,
    rgba(0, 0, 0, 0.05) 100%
  );
  background-size: 200% 100%;
  animation: vx-shimmer 1.4s linear infinite;
}

@keyframes vx-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ──────────────────────────────────────────────────────────────
   5. HOVER PREMIUM CARDS
   Solo transform + box-shadow (compositor). Sin pseudo-elementos
   con mask (rompía z-index y era costoso en bajo coste).
   ────────────────────────────────────────────────────────────── */
@media (hover: hover) and (pointer: fine) {
  .home-apartment-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 28px 56px -20px rgba(0, 0, 0, 0.4),
                0 0 0 1px rgba(176, 141, 63, 0.45);
  }

  .apt-showcase:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 22px 44px -18px rgba(0, 0, 0, 0.22),
                0 0 0 1px rgba(51, 122, 26, 0.3);
  }
}

/* ──────────────────────────────────────────────────────────────
   6. REVIEWS STAGGER (100ms entre cards)
   ────────────────────────────────────────────────────────────── */
.booking-review.hm-reveal {
  transition: opacity 0.7s var(--vx-ease),
              transform 0.7s var(--vx-ease);
}
.booking-review.hm-reveal:nth-child(1)  { transition-delay: 0ms; }
.booking-review.hm-reveal:nth-child(2)  { transition-delay: 100ms; }
.booking-review.hm-reveal:nth-child(3)  { transition-delay: 200ms; }
.booking-review.hm-reveal:nth-child(4)  { transition-delay: 300ms; }
.booking-review.hm-reveal:nth-child(5)  { transition-delay: 400ms; }
.booking-review.hm-reveal:nth-child(6)  { transition-delay: 500ms; }
.booking-review.hm-reveal:nth-child(n+7){ transition-delay: 600ms; }

/* ──────────────────────────────────────────────────────────────
   7. NAVBAR REFINADO (logo más pequeño al scrollear + scroll progress)
   No tocamos la transición de background del .navbar — la gestiona
   el CSS base — para no duplicar/colisionar reglas.
   ────────────────────────────────────────────────────────────── */
.navbar__logo img {
  height: 48px;
  transition: height 400ms var(--vx-ease);
  display: block;
}

.navbar.scrolled .navbar__logo img {
  height: 40px;
}

/* Indicador de progreso de scroll en el borde inferior.
   Sin transition: el rAF del JS ya entrega un valor por frame; añadir
   transition sobre transform crea trembling en cada frame. */
.navbar::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--vx-primary) 0%, var(--vx-gold) 100%);
  transform: scaleX(var(--vx-scroll-progress, 0));
  transform-origin: left center;
  z-index: 5;
  pointer-events: none;
}

/* ──────────────────────────────────────────────────────────────
   8. BOTÓN COPIAR CÓDIGO DE RESERVA
   ────────────────────────────────────────────────────────────── */
.vx-copy-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  margin-left: 10px;
  background: rgba(51, 122, 26, 0.08);
  border: 1px solid rgba(51, 122, 26, 0.25);
  border-radius: 50%;
  color: var(--vx-primary);
  cursor: pointer;
  font-size: 16px;
  line-height: 1;
  transition: background-color 200ms var(--vx-ease),
              border-color 200ms var(--vx-ease),
              color 200ms var(--vx-ease),
              transform 200ms var(--vx-ease);
  vertical-align: middle;
}

.vx-copy-btn:hover {
  background: var(--vx-primary);
  border-color: var(--vx-primary);
  color: #fff;
}

.vx-copy-btn:active {
  transform: scale(0.94);
}

.vx-copy-btn.is-copied {
  background: var(--vx-success);
  border-color: var(--vx-success);
  color: #fff;
  pointer-events: none;
}

/* Layout del código + botón */
.hg-code__inline {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ──────────────────────────────────────────────────────────────
   9. ACCESIBILIDAD: prefers-reduced-motion
   ────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .vx-toast,
  .vx-page.is-entering,
  .vx-field__indicator,
  .vx-field input,
  .vx-field textarea,
  .booking-drawer--v2 .bds__item.vx-stagger,
  .booking-review.hm-reveal,
  .navbar__logo img,
  .vx-copy-btn,
  .home-apartment-card,
  .apt-showcase {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }
  .vx-toast { opacity: 1; }
  .vx-field__indicator { opacity: 1; }
  .booking-drawer--v2 .bds__item.vx-stagger { opacity: 1; transform: none; }
  .bds__skeleton-card { animation: none; }
}