/* ==============================================================
   GRUPO FEMAX - ANIMACIONES DE ALTO RENDIMIENTO (60 FPS)
   Aceleración por GPU (transform, translate3d, will-change, opacity)
   1. LOADER CINEMÁTICO
   2. SCROLL-DRIVEN REVEALS
   3. EFECTOS HOVER MAGNÉTICOS & 3D TILT
   4. TRANSICIONES DE MENÚ FLUIDAS
   ============================================================== */

/* ==============================================================
   1. PRELOADER CINEMÁTICO
   ============================================================== */
#preloader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 99999;
  display: flex;
  align-items: center;
  justify-content: center;
  pointer-events: all;
  background-color: transparent;
  overflow: hidden;
}

.loader-curtain-top,
.loader-curtain-bottom {
  position: absolute;
  left: 0;
  width: 100%;
  height: 50.5%;
  background: #FFFFFF;
  z-index: 1;
  transition: transform 0.8s cubic-bezier(0.77, 0, 0.175, 1);
  will-change: transform;
}

.loader-curtain-top {
  top: 0;
  transform-origin: top center;
  border-bottom: 1px solid rgba(0, 82, 204, 0.1);
}

.loader-curtain-bottom {
  bottom: 0;
  transform-origin: bottom center;
  border-top: 1px solid rgba(0, 82, 204, 0.1);
}

.loader-content {
  position: relative;
  z-index: 2;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  transition: opacity 0.4s ease, transform 0.4s ease;
  will-change: opacity, transform;
}

.loader-logo-wrap {
  width: 110px;
  height: 110px;
  margin-bottom: 24px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.loader-spinner-ring {
  position: absolute;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  border: 3px solid rgba(0, 82, 204, 0.1);
  border-top-color: #0052CC;
  border-right-color: #00D2B4;
  animation: spinRing 1.2s cubic-bezier(0.5, 0, 0.5, 1) infinite;
  will-change: transform;
}

.loader-logo-inner {
  width: 60px;
  height: 60px;
  animation: pulseLogo 2s ease-in-out infinite;
}

.loader-brand-title {
  font-size: 1.6rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: #0F172A;
  margin-bottom: 6px;
}

.loader-brand-sub {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 3px;
  color: #0052CC;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.loader-progress-container {
  width: 220px;
  height: 4px;
  background: #E2E8F0;
  border-radius: 9999px;
  overflow: hidden;
  position: relative;
}

.loader-progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #0052CC, #00D2B4);
  border-radius: 9999px;
  transition: width 0.15s ease-out;
  will-change: width;
}

.loader-percent {
  font-size: 0.85rem;
  font-weight: 800;
  color: #64748B;
  margin-top: 10px;
  font-variant-numeric: tabular-nums;
}

/* Estado al finalizar carga */
#preloader.loaded .loader-content {
  opacity: 0;
  transform: scale(0.95) translate3d(0, -10px, 0);
}

#preloader.loaded .loader-curtain-top {
  transform: translate3d(0, -100%, 0);
}

#preloader.loaded .loader-curtain-bottom {
  transform: translate3d(0, 100%, 0);
}

@keyframes spinRing {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

@keyframes pulseLogo {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 0 rgba(0,82,204,0)); }
  50% { transform: scale(1.06); filter: drop-shadow(0 0 12px rgba(0,82,204,0.3)); }
}

/* ==============================================================
   2. SCROLL-DRIVEN ANIMATIONS (HARDWARE ACCELERATED)
   ============================================================== */
.scroll-reveal {
  opacity: 0;
  transform: translate3d(0, 36px, 0);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  will-change: opacity, transform;
}

.scroll-reveal.reveal-scale {
  transform: scale(0.94) translate3d(0, 24px, 0);
}

.scroll-reveal.reveal-left {
  transform: translate3d(-40px, 0, 0);
}

.scroll-reveal.reveal-right {
  transform: translate3d(40px, 0, 0);
}

/* Activación por IntersectionObserver */
.scroll-reveal.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0) scale(1);
}

/* Retrasos escalonados (Stagger delays) */
.delay-100 { transition-delay: 100ms; }
.delay-200 { transition-delay: 200ms; }
.delay-300 { transition-delay: 300ms; }
.delay-400 { transition-delay: 400ms; }
.delay-500 { transition-delay: 500ms; }

/* ==============================================================
   3. EFECTOS HOVER AVANZADOS (3D TILT & MAGNÉTICO)
   ============================================================== */
/* Contenedor con perspectiva para Tilt 3D */
.tilt-card {
  transform-style: preserve-3d;
  transform: perspective(1000px) rotateX(0deg) rotateY(0deg) translate3d(0, 0, 0);
  transition: transform 0.15s ease-out, box-shadow 0.25s ease;
  will-change: transform;
}

.tilt-card-inner {
  transform: translateZ(25px);
  transform-style: preserve-3d;
}

/* Spotlight dinámico sobre la tarjeta */
.tilt-spotlight {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(0, 82, 204, 0.12) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s ease;
  border-radius: inherit;
  z-index: 5;
}

.tilt-card:hover .tilt-spotlight {
  opacity: 1;
}

/* Botón Magnético */
.magnetic-btn {
  display: inline-block;
  will-change: transform;
  transition: transform 0.2s cubic-bezier(0.25, 1, 0.5, 1);
}

/* ==============================================================
   4. INTERACTIVIDAD GENERAL Y KEYFRAMES
   ============================================================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translate3d(0, 12px, 0);
  }
  to {
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.3); opacity: 0.6; }
}

@keyframes floatSlow {
  0%, 100% { transform: translate3d(0, 0, 0); }
  50% { transform: translate3d(0, -10px, 0); }
}

.float-anim {
  animation: floatSlow 4s ease-in-out infinite;
}