/**
 * Txiki Librería/Papelería
 * Animaciones y Transiciones
 */

/* ========================================
   ANIMACIONES DE ENTRADA
   ======================================== */
@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@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 scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ========================================
   ANIMACIÓN DE ESTRELLAS FLOTANTES
   ======================================== */
@keyframes float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

@keyframes twinkle {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes rotate {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

/* ========================================
   ANIMACIÓN DE PULSO SUAVE
   ======================================== */
@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 20px rgba(244, 235, 220, 0.2);
    }

    50% {
        box-shadow: 0 0 40px rgba(244, 235, 220, 0.4);
    }
}

/* ========================================
   CLASES DE ANIMACIÓN APLICABLES
   ======================================== */
.animate-fadeIn {
    animation: fadeIn 0.6s ease forwards;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fadeInDown {
    animation: fadeInDown 0.6s ease forwards;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.6s ease forwards;
}

.animate-fadeInRight {
    animation: fadeInRight 0.6s ease forwards;
}

.animate-scaleIn {
    animation: scaleIn 0.5s ease forwards;
}

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

.animate-twinkle {
    animation: twinkle 2s ease-in-out infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

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

/* ========================================
   ANIMACIONES CON RETRASO (STAGGER)
   ======================================== */
.delay-100 {
    animation-delay: 50ms;
}

.delay-200 {
    animation-delay: 100ms;
}

.delay-300 {
    animation-delay: 150ms;
}

.delay-400 {
    animation-delay: 200ms;
}

.delay-500 {
    animation-delay: 250ms;
}

.delay-600 {
    animation-delay: 300ms;
}

.delay-700 {
    animation-delay: 350ms;
}

.delay-800 {
    animation-delay: 400ms;
}

/* ========================================
   INTERSECTION OBSERVER - REVEAL ON SCROLL
   ======================================== */
.reveal {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

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

.reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

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

.reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

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

.reveal-scale {
    opacity: 0;
    transform: scale(0.9);
    transition: opacity 0.35s ease, transform 0.35s ease;
}

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

/* ========================================
   HOVER EFFECTS
   ======================================== */
.hover-lift {
    transition: transform var(--transition-elegant), box-shadow var(--transition-elegant);
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

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

.hover-scale:hover {
    transform: scale(1.02);
}

.hover-glow {
    transition: box-shadow var(--transition-elegant);
}

.hover-glow:hover {
    box-shadow: var(--shadow-gold);
}

/* Efecto de brillo en hover */
.hover-shine {
    position: relative;
    overflow: hidden;
}

.hover-shine::after {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(to right,
            transparent 0%,
            rgba(255, 255, 255, 0.1) 50%,
            transparent 100%);
    transform: rotate(30deg) translateX(-100%);
    transition: transform 0.6s ease;
}

.hover-shine:hover::after {
    transform: rotate(30deg) translateX(100%);
}

/* ========================================
   TRANSICIONES DE IMAGEN
   ======================================== */
.img-zoom {
    overflow: hidden;
}

.img-zoom img {
    transition: transform var(--transition-slow);
}

.img-zoom:hover img {
    transform: scale(1.1);
}

/* ========================================
   LOADING SKELETON
   ======================================== */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg,
            var(--soft-tan) 25%,
            var(--vanilla-cream) 50%,
            var(--soft-tan) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--radius-md);
}

/* ========================================
   CURSOR INTERACTIVO
   ======================================== */
.interactive {
    cursor: pointer;
    user-select: none;
}

.interactive:active {
    transform: scale(0.98);
}

/* ========================================
   REDUCIR MOVIMIENTO (ACCESIBILIDAD)
   ======================================== */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .reveal,
    .reveal-left,
    .reveal-right,
    .reveal-scale {
        opacity: 1;
        transform: none;
    }
}