/* =================================================================
   EFECTOS Y ANIMACIONES PROFESIONALES
   Animaciones modernas, transiciones y efectos visuales
================================================================= */

/* =================================================================
   VARIABLES DE ANIMACIÓN
================================================================= */
:root {
    /* Duraciones */
    --duration-instant: 0.1s;
    --duration-fast: 0.2s;
    --duration-normal: 0.3s;
    --duration-slow: 0.5s;
    --duration-slower: 0.8s;
    --duration-slowest: 1.2s;
    
    /* Easing functions */
    --ease-linear: linear;
    --ease-in: cubic-bezier(0.4, 0, 1, 1);
    --ease-out: cubic-bezier(0, 0, 0.2, 1);
    --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-bounce: cubic-bezier(0.68, -0.55, 0.265, 1.55);
    --ease-elastic: cubic-bezier(0.175, 0.885, 0.32, 1.275);
    --ease-back: cubic-bezier(0.68, -0.6, 0.32, 1.6);
    
    /* Efectos de hover */
    --hover-lift: translateY(-4px);
    --hover-scale: scale(1.05);
    --hover-rotate: rotate(2deg);
}

/* =================================================================
   ANIMACIONES DE ENTRADA (FADE IN)
================================================================= */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInScale {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* Clases de animación de entrada */
.animate-fadeIn {
    animation: fadeIn var(--duration-normal) var(--ease-out) both;
}

.animate-fadeInUp {
    animation: fadeInUp var(--duration-normal) var(--ease-out) both;
}

.animate-fadeInDown {
    animation: fadeInDown var(--duration-normal) var(--ease-out) both;
}

.animate-fadeInLeft {
    animation: fadeInLeft var(--duration-normal) var(--ease-out) both;
}

.animate-fadeInRight {
    animation: fadeInRight var(--duration-normal) var(--ease-out) both;
}

.animate-fadeInScale {
    animation: fadeInScale var(--duration-normal) var(--ease-bounce) both;
}

/* Delays para animaciones escalonadas */
.animate-delay-100 { animation-delay: 0.1s; }
.animate-delay-200 { animation-delay: 0.2s; }
.animate-delay-300 { animation-delay: 0.3s; }
.animate-delay-500 { animation-delay: 0.5s; }
.animate-delay-700 { animation-delay: 0.7s; }
.animate-delay-1000 { animation-delay: 1s; }

/* =================================================================
   ANIMACIONES DE CARGA
================================================================= */
@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

@keyframes pulse {
    0%, 100% { 
        opacity: 1;
        transform: scale(1);
    }
    50% { 
        opacity: 0.7;
        transform: scale(1.05);
    }
}

@keyframes bounce {
    0%, 20%, 53%, 80%, 100% {
        animation-timing-function: cubic-bezier(0.215, 0.61, 0.355, 1);
        transform: translate3d(0, 0, 0);
    }
    40%, 43% {
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        transform: translate3d(0, -30px, 0);
    }
    70% {
        animation-timing-function: cubic-bezier(0.755, 0.05, 0.855, 0.06);
        transform: translate3d(0, -15px, 0);
    }
    90% {
        transform: translate3d(0, -4px, 0);
    }
}

@keyframes wobble {
    from { transform: translate3d(0, 0, 0); }
    15% { transform: translate3d(-25%, 0, 0) rotate3d(0, 0, 1, -5deg); }
    30% { transform: translate3d(20%, 0, 0) rotate3d(0, 0, 1, 3deg); }
    45% { transform: translate3d(-15%, 0, 0) rotate3d(0, 0, 1, -3deg); }
    60% { transform: translate3d(10%, 0, 0) rotate3d(0, 0, 1, 2deg); }
    75% { transform: translate3d(-5%, 0, 0) rotate3d(0, 0, 1, -1deg); }
    to { transform: translate3d(0, 0, 0); }
}

@keyframes heartbeat {
    0% { transform: scale(1); }
    14% { transform: scale(1.3); }
    28% { transform: scale(1); }
    42% { transform: scale(1.3); }
    70% { transform: scale(1); }
}

/* Clases de animación de carga */
.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-bounce {
    animation: bounce 1s infinite;
}

.animate-wobble {
    animation: wobble 1s ease-in-out;
}

.animate-heartbeat {
    animation: heartbeat 1.5s ease-in-out infinite;
}

/* =================================================================
   EFECTOS DE SHIMMER Y LOADING
================================================================= */
@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

@keyframes loadingDots {
    0%, 80%, 100% { 
        transform: scale(0);
        opacity: 0.5;
    }
    40% { 
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes progressBar {
    0% { width: 0%; }
    100% { width: 100%; }
}

@keyframes skeletonLoading {
    0% {
        background-position: -200px 0;
    }
    100% {
        background-position: calc(200px + 100%) 0;
    }
}

.shimmer-effect {
    background: linear-gradient(90deg, 
        rgba(255, 255, 255, 0) 0%, 
        rgba(255, 255, 255, 0.4) 50%, 
        rgba(255, 255, 255, 0) 100%);
    background-size: 200px 100%;
    animation: shimmer 1.5s infinite;
}

.loading-dots {
    display: inline-flex;
    gap: 4px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: currentColor;
    animation: loadingDots 1.4s infinite ease-in-out both;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0s; }

.skeleton {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: skeletonLoading 1.5s infinite;
    border-radius: 4px;
}

/* =================================================================
   EFECTOS DE HOVER AVANZADOS
================================================================= */
.hover-lift {
    transition: transform var(--duration-fast) var(--ease-out);
}

.hover-lift:hover {
    transform: var(--hover-lift);
}

.hover-scale {
    transition: transform var(--duration-fast) var(--ease-out);
}

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

.hover-rotate {
    transition: transform var(--duration-normal) var(--ease-back);
}

.hover-rotate:hover {
    transform: var(--hover-rotate);
}

.hover-glow {
    transition: box-shadow var(--duration-normal) var(--ease-out);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.4);
}

.hover-brightness {
    transition: filter var(--duration-fast) var(--ease-out);
}

.hover-brightness:hover {
    filter: brightness(1.1);
}

.hover-shadow-lift {
    transition: all var(--duration-normal) var(--ease-out);
}

.hover-shadow-lift:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

/* Efecto de ondas (ripple) */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    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::before {
    width: 300px;
    height: 300px;
}

/* =================================================================
   TRANSICIONES SUAVES PARA ELEMENTOS
================================================================= */
.smooth-transition {
    transition: all var(--duration-normal) var(--ease-out);
}

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

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

.smooth-color {
    transition: color var(--duration-fast) var(--ease-out),
                background-color var(--duration-fast) var(--ease-out),
                border-color var(--duration-fast) var(--ease-out);
}

.smooth-transform {
    transition: transform var(--duration-normal) var(--ease-out);
}

.smooth-opacity {
    transition: opacity var(--duration-fast) var(--ease-out);
}

.smooth-shadow {
    transition: box-shadow var(--duration-normal) var(--ease-out);
}

/* =================================================================
   EFECTOS DE APARECER/DESAPARECER
================================================================= */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(100%);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideLeft {
    from {
        opacity: 0;
        transform: translateX(100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideRight {
    from {
        opacity: 0;
        transform: translateX(-100%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
    }
    to {
        transform: scale(1);
    }
}

@keyframes zoomOut {
    from {
        opacity: 1;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    to {
        opacity: 0;
        transform: scale(0.3);
    }
}

.animate-slideDown {
    animation: slideDown var(--duration-normal) var(--ease-out) both;
}

.animate-slideUp {
    animation: slideUp var(--duration-normal) var(--ease-out) both;
}

.animate-slideLeft {
    animation: slideLeft var(--duration-normal) var(--ease-out) both;
}

.animate-slideRight {
    animation: slideRight var(--duration-normal) var(--ease-out) both;
}

.animate-zoomIn {
    animation: zoomIn var(--duration-normal) var(--ease-bounce) both;
}

.animate-zoomOut {
    animation: zoomOut var(--duration-normal) var(--ease-in) both;
}

/* =================================================================
   EFECTOS DE PARTÍCULAS Y BACKGROUND
================================================================= */
@keyframes float {
    0%, 100% { transform: translateY(0px); }
    50% { transform: translateY(-20px); }
}

@keyframes floatReverse {
    0%, 100% { transform: translateY(-20px); }
    50% { transform: translateY(0px); }
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-float-reverse {
    animation: floatReverse 3s ease-in-out infinite;
}

.animate-gradient {
    background-size: 400% 400%;
    animation: gradientShift 3s ease infinite;
}

/* Efecto de partículas flotantes */
.particles-container {
    position: relative;
    overflow: hidden;
}

.particles-container::before,
.particles-container::after {
    content: '';
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    opacity: 0.1;
    animation: float 6s ease-in-out infinite;
}

.particles-container::before {
    top: 10%;
    left: 10%;
    background: linear-gradient(45deg, #667eea, #764ba2);
    animation-delay: 0s;
}

.particles-container::after {
    top: 70%;
    right: 10%;
    background: linear-gradient(45deg, #f093fb, #f5576c);
    animation-delay: 3s;
}

/* =================================================================
   EFECTOS DE TYPING/ESCRITURA
================================================================= */
@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink {
    from, to { border-color: transparent; }
    50% { border-color: currentColor; }
}

.typewriter {
    overflow: hidden;
    border-right: 2px solid currentColor;
    white-space: nowrap;
    animation: typing 3.5s steps(40, end), blink 0.75s step-end infinite;
}

/* =================================================================
   EFECTOS DE NOTIFICACIÓN
================================================================= */
@keyframes slideInNotification {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideOutNotification {
    from {
        transform: translateX(0);
        opacity: 1;
    }
    to {
        transform: translateX(100%);
        opacity: 0;
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.animate-notification-in {
    animation: slideInNotification var(--duration-normal) var(--ease-out) both;
}

.animate-notification-out {
    animation: slideOutNotification var(--duration-normal) var(--ease-in) both;
}

.animate-shake {
    animation: shake 0.5s ease-in-out;
}

/* =================================================================
   EFECTOS DE PROGRESO CIRCULAR
================================================================= */
@keyframes progressCircle {
    0% {
        stroke-dasharray: 0 100;
    }
}

.progress-circle-animated {
    animation: progressCircle 2s ease-out forwards;
}

/* =================================================================
   EFECTOS DE MODAL
================================================================= */
@keyframes modalFadeIn {
    from {
        opacity: 0;
        visibility: hidden;
    }
    to {
        opacity: 1;
        visibility: visible;
    }
}

@keyframes modalSlideIn {
    from {
        transform: scale(0.7) translateY(-100px);
        opacity: 0;
    }
    to {
        transform: scale(1) translateY(0);
        opacity: 1;
    }
}

.modal-fade-in {
    animation: modalFadeIn var(--duration-normal) var(--ease-out) both;
}

.modal-slide-in {
    animation: modalSlideIn var(--duration-normal) var(--ease-bounce) both;
}

/* =================================================================
   EFECTOS DE TEXTO
================================================================= */
@keyframes textGlow {
    from {
        text-shadow: 0 0 10px rgba(102, 126, 234, 0.5);
    }
    to {
        text-shadow: 0 0 20px rgba(102, 126, 234, 0.8);
    }
}

@keyframes textColorShift {
    0% { color: #667eea; }
    25% { color: #764ba2; }
    50% { color: #f093fb; }
    75% { color: #f5576c; }
    100% { color: #667eea; }
}

.animate-text-glow {
    animation: textGlow 2s ease-in-out infinite alternate;
}

.animate-text-color {
    animation: textColorShift 4s ease-in-out infinite;
}

/* =================================================================
   EFECTOS DE BOTÓN AVANZADOS
================================================================= */
.btn-magnetic {
    transition: transform var(--duration-fast) var(--ease-out);
}

.btn-magnetic:hover {
    transform: scale(1.05) translateY(-2px);
}

.btn-neon {
    position: relative;
    overflow: hidden;
}

.btn-neon::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.3), transparent);
    transition: left 0.5s ease;
}

.btn-neon:hover::before {
    left: 100%;
}

/* =================================================================
   UTILIDADES DE ANIMACIÓN
================================================================= */
.animate-pause {
    animation-play-state: paused !important;
}

.animate-running {
    animation-play-state: running !important;
}

.animation-fill-forwards {
    animation-fill-mode: forwards !important;
}

.animation-fill-backwards {
    animation-fill-mode: backwards !important;
}

.animation-fill-both {
    animation-fill-mode: both !important;
}

.animation-infinite {
    animation-iteration-count: infinite !important;
}

/* Velocidades de animación */
.animate-slower {
    animation-duration: var(--duration-slower) !important;
}

.animate-slow {
    animation-duration: var(--duration-slow) !important;
}

.animate-normal {
    animation-duration: var(--duration-normal) !important;
}

.animate-fast {
    animation-duration: var(--duration-fast) !important;
}

.animate-faster {
    animation-duration: var(--duration-instant) !important;
}

/* =================================================================
   EFECTOS DE SCROLL
================================================================= */
.scroll-smooth {
    scroll-behavior: smooth;
}

@keyframes fadeInOnScroll {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(50px);
    transition: all var(--duration-slow) var(--ease-out);
}

.fade-in-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

/* =================================================================
   EFECTOS PARA ESTADOS DE ERROR/ÉXITO
================================================================= */
@keyframes errorShake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

@keyframes successCheckmark {
    0% {
        stroke-dasharray: 0 100;
        opacity: 0;
    }
    50% {
        opacity: 1;
    }
    100% {
        stroke-dasharray: 100 0;
        opacity: 1;
    }
}

.animate-error {
    animation: errorShake 0.3s ease-in-out;
}

.animate-success-checkmark {
    animation: successCheckmark 0.6s ease-out;
}

/* =================================================================
   RESPONSIVE ANIMATIONS
================================================================= */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

@media (max-width: 768px) {
    .animate-fadeInUp,
    .animate-fadeInDown,
    .animate-fadeInLeft,
    .animate-fadeInRight {
        animation-duration: var(--duration-fast);
    }
    
    .hover-lift:hover,
    .hover-scale:hover {
        transform: none;
    }
    
    .btn-magnetic:hover {
        transform: none;
    }
}