/**
 * Animaciones Reutilizables - Sistema INACAP
 */

/* ==========================================
   KEYFRAMES - ANIMACIONES
   ========================================== */

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

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

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

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

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

@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

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

/* ==========================================
   CLASES DE ANIMACIÓN
   ========================================== */

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

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

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

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

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

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

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

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

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

.animate-spin {
    animation: spin 1s linear infinite;
}

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

/* ==========================================
   DELAYS
   ========================================== */

.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;
}

/* ==========================================
   HOVER EFFECTS
   ========================================== */

.hover-lift {
    transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

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

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

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

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

/* ==========================================
   LOADING STATES
   ========================================== */

.loading-spinner {
    border: 3px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

.loading-spinner-sm {
    width: 20px;
    height: 20px;
    border-width: 2px;
}

.loading-spinner-lg {
    width: 60px;
    height: 60px;
    border-width: 4px;
}

.loading-dots::after {
    content: '...';
    animation: dots 1.5s steps(4, end) infinite;
}

@keyframes dots {
    0%, 20% { content: '.'; }
    40% { content: '..'; }
    60%, 100% { content: '...'; }
}

/* ==========================================
   SKELETON LOADING
   ========================================== */

@keyframes skeleton-loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-gray-200) 25%,
        var(--color-gray-300) 50%,
        var(--color-gray-200) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s ease-in-out infinite;
    border-radius: var(--border-radius-md);
}

.skeleton-text {
    height: 1rem;
    margin-bottom: 0.5rem;
}

.skeleton-title {
    height: 1.5rem;
    margin-bottom: 1rem;
}

.skeleton-circle {
    border-radius: 50%;
    width: 50px;
    height: 50px;
}

/* ==========================================
   TRANSITIONS
   ========================================== */

.transition-all {
    transition: all var(--transition-normal);
}

.transition-colors {
    transition: background-color var(--transition-normal), 
                border-color var(--transition-normal), 
                color var(--transition-normal);
}

.transition-transform {
    transition: transform var(--transition-normal);
}

.transition-opacity {
    transition: opacity var(--transition-normal);
}