/**
 * EV-Soon Theme - Animation Styles
 * 
 * Scroll-triggered animations and hover transitions
 * Requirements: 2.5, 3.5, 4.5, 5.4, 10.3
 */

/* ==========================================================================
   Animation Keyframes
   ========================================================================== */

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

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

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

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

/* ==========================================================================
   Animation Utility Classes
   ========================================================================== */

/* Base state - elements start visible but will animate */
.animate-fade-in,
.animate-slide-up,
.animate-slide-left,
.animate-slide-right {
    opacity: 1; /* Always visible by default */
}

/* When JS adds is-animating class, hide then animate */
.animate-fade-in.is-animating {
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

.animate-slide-up.is-animating {
    opacity: 0;
    transform: translateY(30px);
    animation: slideUp 0.6s ease forwards;
}

.animate-slide-left.is-animating {
    opacity: 0;
    transform: translateX(-30px);
    animation: slideInLeft 0.6s ease forwards;
}

.animate-slide-right.is-animating {
    opacity: 0;
    transform: translateX(30px);
    animation: slideInRight 0.6s ease forwards;
}

/* Hero section gets immediate animation */
.hero.animate-fade-in {
    animation: fadeIn 0.8s ease forwards;
}

/* Compare section gets immediate animation */
.compare-section.animate-slide-up {
    animation: slideUp 0.8s ease 0.3s forwards;
}

/* Triggered state - when element enters viewport */
.animate-fade-in.is-visible {
    animation: fadeIn var(--transition-slow, 0.6s) ease forwards;
}

.animate-slide-up.is-visible {
    animation: slideUp var(--transition-slow, 0.6s) ease forwards;
}

.animate-slide-left.is-visible {
    animation: slideInLeft var(--transition-slow, 0.6s) ease forwards;
}

.animate-slide-right.is-visible {
    animation: slideInRight var(--transition-slow, 0.6s) ease forwards;
}

/* ==========================================================================
   Staggered Animation Delay Classes
   ========================================================================== */

.animate-delay-1 {
    animation-delay: 0.1s;
}

.animate-delay-2 {
    animation-delay: 0.2s;
}

.animate-delay-3 {
    animation-delay: 0.3s;
}

.animate-delay-4 {
    animation-delay: 0.4s;
}

.animate-delay-5 {
    animation-delay: 0.5s;
}

.animate-delay-6 {
    animation-delay: 0.6s;
}

.animate-delay-7 {
    animation-delay: 0.7s;
}

.animate-delay-8 {
    animation-delay: 0.8s;
}

/* ==========================================================================
   Hover Transition Styles for Interactive Elements
   ========================================================================== */

/* Links */
a {
    transition: color var(--transition-fast, 0.2s) ease;
}

/* Buttons and CTAs */
.btn,
.read-more,
.cta-button {
    transition: background-color var(--transition-fast, 0.2s) ease,
                transform var(--transition-fast, 0.2s) ease,
                box-shadow var(--transition-fast, 0.2s) ease;
}

.btn:hover,
.read-more:hover,
.cta-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

/* Post Cards */
.post-card {
    transition: transform var(--transition-medium, 0.4s) ease,
                box-shadow var(--transition-medium, 0.4s) ease;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

/* Post Card Images */
.post-card img,
.post-featured img {
    transition: transform var(--transition-medium, 0.4s) ease;
}

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

/* Feature Items */
.feature-item {
    transition: transform var(--transition-fast, 0.2s) ease;
}

.feature-item:hover {
    transform: translateX(5px);
}

/* Badge/Tag hover */
.badge,
.tag,
.category-badge {
    transition: background-color var(--transition-fast, 0.2s) ease,
                color var(--transition-fast, 0.2s) ease;
}

/* ==========================================================================
   Reduced Motion Support
   ========================================================================== */

@media (prefers-reduced-motion: reduce) {
    .animate-fade-in,
    .animate-slide-up,
    .animate-slide-left,
    .animate-slide-right {
        opacity: 1;
        animation: none;
    }
    
    .animate-fade-in.is-visible,
    .animate-slide-up.is-visible,
    .animate-slide-left.is-visible,
    .animate-slide-right.is-visible {
        animation: none;
    }
    
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}