/* ──────────────────────────────────────────────────────────────
   ANIMACIONES PREMIUM
   Microinteracciones y efectos profesionales para la web pública.
   Todo CSS nativo, sin librerías. Respeta prefers-reduced-motion.
   ────────────────────────────────────────────────────────────── */

:root {
  --anim-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --anim-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --anim-fast: 0.35s;
  --anim-med: 0.55s;
  --anim-slow: 0.85s;
}

/* Smooth scroll global */
html {
  scroll-behavior: smooth;
}

/* ──────────────────────────────────────────────────────────────
   1. SCROLL REVEAL universal extendido
   Añade transición al opacity/transform sin requerir clase JS previa.
   ────────────────────────────────────────────────────────────── */
.ap-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity var(--anim-med) var(--anim-ease),
    transform var(--anim-med) var(--anim-ease);
  will-change: opacity, transform;
}
.ap-reveal.is-visible {
  opacity: 1;
  transform: none;
}
.ap-reveal--delay-1 { transition-delay: 0.08s; }
.ap-reveal--delay-2 { transition-delay: 0.16s; }
.ap-reveal--delay-3 { transition-delay: 0.24s; }
.ap-reveal--delay-4 { transition-delay: 0.32s; }

/* ──────────────────────────────────────────────────────────────
   2. TARJETAS: hover premium (solo en dispositivos con puntero real)
   Evita estados pegados en pantallas táctiles.
   ────────────────────────────────────────────────────────────── */
.home-apartment-card,
.apt-showcase {
  transition:
    transform var(--anim-fast) var(--anim-ease-out),
    box-shadow var(--anim-fast) var(--anim-ease-out);
  will-change: transform;
}
.home-apartment-card img,
.apt-showcase__media img {
  transition: transform 1s var(--anim-ease-out);
  will-change: transform;
}

.booking-review,
.city-page__item {
  transition:
    transform var(--anim-fast) var(--anim-ease-out),
    box-shadow var(--anim-fast) var(--anim-ease-out);
}

@media (hover: hover) and (pointer: fine) {
  .home-apartment-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 22px 48px -16px rgba(0, 0, 0, 0.35);
  }
  .home-apartment-card:hover img {
    transform: scale(1.06);
  }

  .apt-showcase:hover {
    transform: translateY(-4px);
    box-shadow: 0 18px 38px -14px rgba(0, 0, 0, 0.18);
  }
  .apt-showcase:hover .apt-showcase__media img {
    transform: scale(1.04);
  }

  .booking-review:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 32px -12px rgba(0, 0, 0, 0.18);
  }

  .city-page__item:hover {
    transform: translateY(-4px);
    box-shadow: 0 16px 36px -14px rgba(0, 0, 0, 0.2);
  }
}

/* ──────────────────────────────────────────────────────────────
   3. BOTONES: shine + loading state
   ────────────────────────────────────────────────────────────── */
.btn--primary {
  position: relative;
  overflow: hidden;
  transition:
    transform 0.2s var(--anim-ease-out),
    box-shadow 0.3s var(--anim-ease-out),
    background-color 0.25s ease;
}
.btn--primary::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    120deg,
    transparent 30%,
    rgba(255, 255, 255, 0.28) 50%,
    transparent 70%
  );
  transform: translateX(-120%);
  transition: transform 0.7s var(--anim-ease-out);
  pointer-events: none;
}
.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 24px -10px rgba(0, 0, 0, 0.35);
}
.btn--primary:hover::after {
  transform: translateX(120%);
}
.btn--primary:active {
  transform: translateY(0);
  transition-duration: 0.08s;
}

/* Estado loading en botones */
.btn.is-loading {
  pointer-events: none;
  color: transparent !important;
  position: relative;
}
.btn.is-loading::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 18px;
  height: 18px;
  margin: -9px 0 0 -9px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  color: #fff;
  animation: ap-spin 0.7s linear infinite;
}
@keyframes ap-spin {
  to { transform: rotate(360deg); }
}

/* ──────────────────────────────────────────────────────────────
   4. SKELETON LOADERS
   ────────────────────────────────────────────────────────────── */
.ap-skeleton {
  display: block;
  background: linear-gradient(
    90deg,
    rgba(0, 0, 0, 0.06) 0%,
    rgba(0, 0, 0, 0.12) 50%,
    rgba(0, 0, 0, 0.06) 100%
  );
  background-size: 200% 100%;
  animation: ap-shimmer 1.4s infinite linear;
  border-radius: 8px;
  min-height: 16px;
}
.ap-skeleton--card {
  height: 280px;
  border-radius: 12px;
}
.ap-skeleton--line {
  height: 14px;
  margin: 8px 0;
}
.ap-skeleton--line.is-short { width: 40%; }
.ap-skeleton--line.is-medium { width: 70%; }
@keyframes ap-shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ──────────────────────────────────────────────────────────────
   5. BLUR-UP de imágenes (lazy + fade-in suave)
   ────────────────────────────────────────────────────────────── */
.ap-blur-up {
  filter: blur(14px);
  opacity: 0;
  transition:
    filter var(--anim-med) ease,
    opacity var(--anim-med) ease;
  /* Fallback: si el JS no marca is-loaded, la imagen aparece igualmente */
  animation: ap-blur-up-fallback 0s ease 2s forwards;
}
.ap-blur-up.is-loaded {
  filter: blur(0);
  opacity: 1;
  animation: none;
}
@keyframes ap-blur-up-fallback {
  to { filter: blur(0); opacity: 1; }
}

/* ──────────────────────────────────────────────────────────────
   6. NAVBAR: enlaces con underline animado
   ────────────────────────────────────────────────────────────── */
.navbar__links a span {
  position: relative;
  display: inline-block;
}
.navbar__links a span::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -4px;
  height: 2px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right center;
  transition: transform 0.35s var(--anim-ease-out);
}
.navbar__links a:hover span::after,
.navbar__links a.is-active span::after {
  transform: scaleX(1);
  transform-origin: left center;
}

/* ──────────────────────────────────────────────────────────────
   7. STEPPER del booking (3 pasos)
   ────────────────────────────────────────────────────────────── */
.booking-shell,
.booking-step,
[data-booking-step] {
  animation: ap-step-in 0.45s var(--anim-ease) both;
}
.booking-steps .step__number {
  transition: transform 0.35s var(--anim-ease-out), background-color 0.3s ease;
}
.booking-steps .step.active .step__number {
  transform: scale(1.1);
}
@keyframes ap-step-in {
  from { opacity: 0; transform: translateX(20px); }
  to   { opacity: 1; transform: translateX(0); }
}

/* ──────────────────────────────────────────────────────────────
   8. DRAWER de reserva: entrada suavizada
   ────────────────────────────────────────────────────────────── */
.bdr2,
.drawer-reserva {
  animation: ap-drawer-in 0.5s var(--anim-ease) both;
}
@keyframes ap-drawer-in {
  from { opacity: 0; transform: translateY(8px) scale(0.99); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/* ──────────────────────────────────────────────────────────────
   9. HERO: parallax suave (controlado por JS, fallback estático)
   ────────────────────────────────────────────────────────────── */
.hero-carousel .carousel-item img {
  will-change: transform;
  transition: transform 0.05s linear;
}

/* ──────────────────────────────────────────────────────────────
   10. FORM FIELDS: focus refinado
   ────────────────────────────────────────────────────────────── */
.form-group input,
.form-group textarea,
.form-group select {
  transition:
    border-color 0.25s ease,
    box-shadow 0.25s ease,
    transform 0.2s var(--anim-ease-out);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px -6px rgba(0, 0, 0, 0.18);
}

/* ──────────────────────────────────────────────────────────────
   ACCESIBILIDAD: respeto a prefers-reduced-motion
   ────────────────────────────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  .ap-reveal,
  .ap-reveal.is-visible,
  .home-apartment-card,
  .home-apartment-card img,
  .apt-showcase,
  .apt-showcase__media img,
  .booking-review,
  .city-page__item,
  .btn--primary,
  .btn--primary::after,
  .form-group input,
  .form-group textarea,
  .form-group select,
  .hero-carousel .carousel-item img {
    transition: none !important;
    animation: none !important;
    transform: none !important;
  }

  .ap-reveal { opacity: 1; }
  .ap-blur-up { filter: none; opacity: 1; }
  .ap-skeleton { animation: none; }
}