/* ============================================
   ANIMATIONS.CSS - Micro-interacciones ChambApp
   Task 31: Tap feedback, Success animations,
            Page transitions, Stagger lists
   Fecha: 30 Enero 2026
   ============================================ */

/* ============================================
   1. TAP FEEDBACK - Elementos Tocables
   ============================================ */

/* Clase base para elementos interactivos */
.touchable {
    transition: transform var(--transition-fast, 150ms) ease,
                opacity var(--transition-fast, 150ms) ease;
    -webkit-tap-highlight-color: transparent;
    cursor: pointer;
}

.touchable:active {
    transform: scale(0.97);
    opacity: 0.9;
}

/* Variante más sutil para elementos pequeños */
.touchable-subtle:active {
    transform: scale(0.98);
    opacity: 0.95;
}

/* Tap feedback con ripple effect */
.tap-ripple {
    position: relative;
    overflow: hidden;
}

.tap-ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.3s ease, height 0.3s ease, opacity 0.3s ease;
    opacity: 0;
    pointer-events: none;
}

.tap-ripple:active::after {
    width: 200%;
    height: 200%;
    opacity: 1;
}

/* Ripple para fondos oscuros */
.tap-ripple-dark::after {
    background: rgba(0, 0, 0, 0.1);
}

/* ============================================
   2. SUCCESS ANIMATIONS
   ============================================ */

/* Pop de entrada exitosa */
@keyframes success-pop {
    0% {
        transform: scale(0.8);
        opacity: 0;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success-animation {
    animation: success-pop 0.4s ease-out;
}

/* Checkmark animado */
@keyframes checkmark-draw {
    0% {
        stroke-dashoffset: 50;
    }
    100% {
        stroke-dashoffset: 0;
    }
}

.checkmark-animated {
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    animation: checkmark-draw 0.4s ease-out 0.2s forwards;
}

/* Glow de éxito */
@keyframes success-glow {
    0% {
        box-shadow: 0 0 0 0 rgba(0, 196, 140, 0.4);
    }
    70% {
        box-shadow: 0 0 0 12px rgba(0, 196, 140, 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(0, 196, 140, 0);
    }
}

.success-glow {
    animation: success-glow 0.6s ease-out;
}

/* ============================================
   3. LIKE / FAVORITE ANIMATION
   ============================================ */

@keyframes heart-beat {
    0%, 100% {
        transform: scale(1);
    }
    25% {
        transform: scale(1.2);
    }
    50% {
        transform: scale(0.95);
    }
    75% {
        transform: scale(1.1);
    }
}

.heart-animation {
    animation: heart-beat 0.4s ease-in-out;
}

/* Bounce para favoritos/guardados */
@keyframes favorite-bounce {
    0% { transform: scale(1); }
    30% { transform: scale(1.25); }
    50% { transform: scale(0.9); }
    70% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

.favorite-animation {
    animation: favorite-bounce 0.5s ease-out;
}

/* ============================================
   4. PAGE TRANSITIONS
   ============================================ */

/* Entrada de página - Fade + Slide up */
@keyframes page-enter {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.page-content {
    animation: page-enter 0.3s ease-out;
}

/* Entrada más sutil */
@keyframes page-fade-in {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.page-fade {
    animation: page-fade-in 0.25s ease-out;
}

/* Slide desde la derecha (navegación forward) */
@keyframes slide-in-right {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-right {
    animation: slide-in-right 0.3s ease-out;
}

/* Slide desde la izquierda (navegación back) */
@keyframes slide-in-left {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slide-in-left 0.3s ease-out;
}

/* Scale in para modales y popups */
@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-in {
    animation: scale-in 0.2s ease-out;
}

/* ============================================
   5. STAGGER PARA LISTAS
   ============================================ */

/* Item de lista con stagger */
@keyframes stagger-item {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stagger-item {
    opacity: 0;
    animation: stagger-item 0.3s ease-out forwards;
}

/* Delays para stagger manual (hasta 10 items) */
.stagger-item:nth-child(1) { animation-delay: 0.05s; }
.stagger-item:nth-child(2) { animation-delay: 0.1s; }
.stagger-item:nth-child(3) { animation-delay: 0.15s; }
.stagger-item:nth-child(4) { animation-delay: 0.2s; }
.stagger-item:nth-child(5) { animation-delay: 0.25s; }
.stagger-item:nth-child(6) { animation-delay: 0.3s; }
.stagger-item:nth-child(7) { animation-delay: 0.35s; }
.stagger-item:nth-child(8) { animation-delay: 0.4s; }
.stagger-item:nth-child(9) { animation-delay: 0.45s; }
.stagger-item:nth-child(10) { animation-delay: 0.5s; }

/* Contenedor que aplica stagger a hijos directos */
.stagger-children > * {
    opacity: 0;
    animation: stagger-item 0.3s ease-out forwards;
}

.stagger-children > *:nth-child(1) { animation-delay: 0.05s; }
.stagger-children > *:nth-child(2) { animation-delay: 0.1s; }
.stagger-children > *:nth-child(3) { animation-delay: 0.15s; }
.stagger-children > *:nth-child(4) { animation-delay: 0.2s; }
.stagger-children > *:nth-child(5) { animation-delay: 0.25s; }
.stagger-children > *:nth-child(6) { animation-delay: 0.3s; }
.stagger-children > *:nth-child(7) { animation-delay: 0.35s; }
.stagger-children > *:nth-child(8) { animation-delay: 0.4s; }
.stagger-children > *:nth-child(9) { animation-delay: 0.45s; }
.stagger-children > *:nth-child(10) { animation-delay: 0.5s; }

/* Stagger más rápido */
.stagger-fast > * {
    opacity: 0;
    animation: stagger-item 0.2s ease-out forwards;
}

.stagger-fast > *:nth-child(1) { animation-delay: 0.03s; }
.stagger-fast > *:nth-child(2) { animation-delay: 0.06s; }
.stagger-fast > *:nth-child(3) { animation-delay: 0.09s; }
.stagger-fast > *:nth-child(4) { animation-delay: 0.12s; }
.stagger-fast > *:nth-child(5) { animation-delay: 0.15s; }
.stagger-fast > *:nth-child(6) { animation-delay: 0.18s; }
.stagger-fast > *:nth-child(7) { animation-delay: 0.21s; }
.stagger-fast > *:nth-child(8) { animation-delay: 0.24s; }
.stagger-fast > *:nth-child(9) { animation-delay: 0.27s; }
.stagger-fast > *:nth-child(10) { animation-delay: 0.3s; }

/* ============================================
   6. HOVER STATES MEJORADOS
   ============================================ */

/* Card con hover lift */
.hover-lift {
    transition: transform var(--transition-base, 250ms) ease,
                box-shadow var(--transition-base, 250ms) ease;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

/* Hover con scale sutil */
.hover-scale {
    transition: transform var(--transition-fast, 150ms) ease;
}

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

/* Hover con glow */
.hover-glow {
    transition: box-shadow var(--transition-base, 250ms) ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(0, 102, 255, 0.15);
}

/* ============================================
   7. FEEDBACK VISUAL ADICIONAL
   ============================================ */

/* Pulse para llamar atención */
@keyframes attention-pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

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

/* Shake para errores */
@keyframes error-shake {
    0%, 100% { transform: translateX(0); }
    20% { transform: translateX(-6px); }
    40% { transform: translateX(6px); }
    60% { transform: translateX(-4px); }
    80% { transform: translateX(4px); }
}

.error-shake {
    animation: error-shake 0.4s ease-out;
}

/* Bounce de entrada */
@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* ============================================
   8. LOADING STATES MEJORADOS
   ============================================ */

/* Dots loading */
@keyframes loading-dots {
    0%, 80%, 100% {
        transform: scale(0);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

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

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary, #0066FF);
    border-radius: 50%;
    animation: loading-dots 1.4s ease-in-out infinite;
}

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

/* Progress bar animado */
@keyframes progress-indeterminate {
    0% {
        transform: translateX(-100%);
    }
    100% {
        transform: translateX(400%);
    }
}

.progress-indeterminate {
    position: relative;
    overflow: hidden;
    height: 4px;
    background: var(--gray-200, #e5e7eb);
    border-radius: 2px;
}

.progress-indeterminate::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 30%;
    height: 100%;
    background: var(--primary, #0066FF);
    border-radius: 2px;
    animation: progress-indeterminate 1.5s ease-in-out infinite;
}

/* ============================================
   9. ACCESIBILIDAD - Reduced Motion
   ============================================ */

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

    .touchable:active {
        transform: none;
    }

    .hover-lift:hover {
        transform: none;
    }

    .hover-scale:hover {
        transform: none;
    }
}

/* ============================================
   10. UTILIDADES DE ANIMACION
   ============================================ */

/* Delays de animación */
.delay-100 { animation-delay: 100ms; }
.delay-200 { animation-delay: 200ms; }
.delay-300 { animation-delay: 300ms; }
.delay-400 { animation-delay: 400ms; }
.delay-500 { animation-delay: 500ms; }

/* Duraciones */
.duration-fast { animation-duration: 150ms; }
.duration-base { animation-duration: 250ms; }
.duration-slow { animation-duration: 350ms; }

/* Fill modes */
.fill-forwards { animation-fill-mode: forwards; }
.fill-both { animation-fill-mode: both; }

/* Easing functions */
.ease-out { animation-timing-function: ease-out; }
.ease-in-out { animation-timing-function: ease-in-out; }
.ease-spring { animation-timing-function: cubic-bezier(0.175, 0.885, 0.32, 1.275); }