/* Animations CSS - Keyframes y animaciones */

/* ============================================
   KEYFRAME ANIMATIONS
   ============================================ */

/* Fade In Up - Para hero y elementos */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Fade In - Simple fade */
@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* Slide In From Left */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Slide In From Right */
@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* Bounce - Para scroll indicator */
@keyframes bounce {
  0%, 20%, 50%, 80%, 100% {
    transform: translateX(-50%) translateY(0);
  }
  40% {
    transform: translateX(-50%) translateY(-10px);
  }
  60% {
    transform: translateX(-50%) translateY(-5px);
  }
}

/* Scroll Down - Para el indicador dentro del mouse */
@keyframes scrollDown {
  0% {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
  }
  100% {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
  }
}

/* Spin - Para loading spinners */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* Pulse - Para llamar atención */
@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

/* Shake - Para errores en formularios */
@keyframes shake {
  0%, 100% {
    transform: translateX(0);
  }
  10%, 30%, 50%, 70%, 90% {
    transform: translateX(-5px);
  }
  20%, 40%, 60%, 80% {
    transform: translateX(5px);
  }
}

/* Scale In - Para cards */
@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.8);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

/* Float - Para elementos flotantes */
@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-10px);
  }
}

/* Glow - Para efectos de brillo */
@keyframes glow {
  0%, 100% {
    box-shadow: 0 0 5px rgba(76, 195, 193, 0.5);
  }
  50% {
    box-shadow: 0 0 20px rgba(76, 195, 193, 0.8);
  }
}

/* Rotate - Para iconos animados */
@keyframes rotate {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ============================================
   ANIMACIONES DE ENTRADA (SCROLL)
   ============================================ */

/* Fade In Up con delay */
.fade-in-up {
  animation: fadeInUp 0.8s var(--ease-out);
}

.fade-in-up-delay-1 {
  animation: fadeInUp 0.8s var(--ease-out) 0.1s backwards;
}

.fade-in-up-delay-2 {
  animation: fadeInUp 0.8s var(--ease-out) 0.2s backwards;
}

.fade-in-up-delay-3 {
  animation: fadeInUp 0.8s var(--ease-out) 0.3s backwards;
}

.fade-in-up-delay-4 {
  animation: fadeInUp 0.8s var(--ease-out) 0.4s backwards;
}

/* ============================================
   HOVER ANIMATIONS
   ============================================ */

/* Elevación suave al hover */
.hover-lift {
  transition: transform var(--transition-base) var(--ease-out);
}

.hover-lift:hover {
  transform: translateY(-5px);
}

/* Escalado al hover */
.hover-scale {
  transition: transform var(--transition-base) var(--ease-out);
}

.hover-scale:hover {
  transform: scale(1.05);
}

/* Rotación al hover */
.hover-rotate {
  transition: transform var(--transition-base) var(--ease-out);
}

.hover-rotate:hover {
  transform: rotate(5deg);
}

/* Brillo al hover */
.hover-glow {
  transition: box-shadow var(--transition-base) var(--ease-out);
}

.hover-glow:hover {
  box-shadow: 0 0 20px rgba(76, 195, 193, 0.5);
}

/* ============================================
   LOADING ANIMATIONS
   ============================================ */

/* Spinner circular */
.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--gris-claro);
  border-top-color: var(--azul-secundario);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

/* Skeleton loader */
@keyframes skeleton-loading {
  0% {
    background-position: -200px 0;
  }
  100% {
    background-position: calc(200px + 100%) 0;
  }
}

.skeleton {
  background: linear-gradient(90deg, #f0f0f0 0px, #e0e0e0 40px, #f0f0f0 80px);
  background-size: 200px 100%;
  animation: skeleton-loading 1.2s ease-in-out infinite;
}

/* Dots loading */
@keyframes dots-loading {
  0%, 20% {
    opacity: 0;
    transform: scale(0.8);
  }
  50% {
    opacity: 1;
    transform: scale(1.2);
  }
  100% {
    opacity: 0;
    transform: scale(0.8);
  }
}

.dots-loading {
  display: flex;
  gap: 8px;
  align-items: center;
  justify-content: center;
}

.dots-loading span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--azul-secundario);
  animation: dots-loading 1.4s infinite;
}

.dots-loading span:nth-child(2) {
  animation-delay: 0.2s;
}

.dots-loading span:nth-child(3) {
  animation-delay: 0.4s;
}

/* ============================================
   RIPPLE EFFECT (para botones)
   ============================================ */

.ripple {
  position: relative;
  overflow: hidden;
}

.ripple::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 0;
  height: 0;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.5);
  transform: translate(-50%, -50%);
  transition: width 0.6s, height 0.6s;
}

.ripple:active::after {
  width: 300px;
  height: 300px;
}

/* ============================================
   BACKGROUND ANIMATIONS
   ============================================ */

/* Gradiente animado */
@keyframes gradient-shift {
  0% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
  100% {
    background-position: 0% 50%;
  }
}

.animated-gradient {
  background: linear-gradient(
    -45deg,
    var(--azul-principal),
    var(--azul-secundario),
    var(--agua-marina),
    var(--azul-secundario)
  );
  background-size: 400% 400%;
  animation: gradient-shift 15s ease infinite;
}

/* Partículas flotantes */
@keyframes particle-float {
  0% {
    transform: translateY(0) translateX(0);
    opacity: 0;
  }
  10% {
    opacity: 0.5;
  }
  90% {
    opacity: 0.5;
  }
  100% {
    transform: translateY(-100vh) translateX(20px);
    opacity: 0;
  }
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--blanco);
  border-radius: 50%;
  opacity: 0;
  animation: particle-float 10s infinite;
}

.particle:nth-child(1) { left: 10%; animation-delay: 0s; }
.particle:nth-child(2) { left: 20%; animation-delay: 2s; }
.particle:nth-child(3) { left: 30%; animation-delay: 4s; }
.particle:nth-child(4) { left: 40%; animation-delay: 1s; }
.particle:nth-child(5) { left: 50%; animation-delay: 3s; }
.particle:nth-child(6) { left: 60%; animation-delay: 5s; }
.particle:nth-child(7) { left: 70%; animation-delay: 2.5s; }
.particle:nth-child(8) { left: 80%; animation-delay: 4.5s; }
.particle:nth-child(9) { left: 90%; animation-delay: 1.5s; }

/* ============================================
   TEXT ANIMATIONS
   ============================================ */

/* Typewriter effect */
@keyframes typewriter {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

.typewriter {
  overflow: hidden;
  white-space: nowrap;
  animation: typewriter 3s steps(40) 1s forwards;
}

/* Underline animation */
@keyframes underline-expand {
  from {
    width: 0;
  }
  to {
    width: 100%;
  }
}

.animated-underline {
  position: relative;
  display: inline-block;
}

.animated-underline::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 3px;
  background: var(--agua-marina);
  animation: underline-expand 0.6s var(--ease-out) forwards;
}

/* ============================================
   CONTADOR ANIMADO
   ============================================ */

.counter {
  font-size: var(--font-size-4xl);
  font-weight: var(--font-bold);
  color: var(--azul-secundario);
  transition: transform var(--transition-base);
}

.counter.counting {
  animation: pulse 0.5s ease-in-out;
}

/* ============================================
   TRANSICIONES SUAVES
   ============================================ */

/* Transición general mejorada */
.smooth-transition {
  transition: all var(--transition-base) var(--ease-out);
}

.smooth-transition-slow {
  transition: all var(--transition-slow) var(--ease-out);
}

/* ============================================
   ANIMACIONES DE PÁGINA
   ============================================ */

/* Fade in de página completa */
@keyframes page-fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

body {
  animation: page-fade-in 0.5s var(--ease-out);
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */

/* Para elementos que aparecen desde diferentes direcciones */
.reveal-left {
  opacity: 0;
  transform: translateX(-50px);
  transition: all 0.8s var(--ease-out);
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(50px);
  transition: all 0.8s var(--ease-out);
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-bottom {
  opacity: 0;
  transform: translateY(50px);
  transition: all 0.8s var(--ease-out);
}

.reveal-bottom.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.8s var(--ease-out);
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* ============================================
   PERFORMANCE OPTIMIZATIONS
   ============================================ */

/* Usar will-change para animaciones intensivas */
.will-animate {
  will-change: transform, opacity;
}

/* Remover will-change después de animación */
.animated {
  will-change: auto;
}

/* ============================================
   REDUCED MOTION
   ============================================ */

/* Respetar preferencias de movimiento reducido */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .particle,
  .animated-gradient,
  .pulse,
  .float {
    animation: none !important;
  }
}