/* Animation Library for WordPress Portfolio Theme */

/* Keyframe Definitions */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

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

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(0.98);  /* Changed from 1.05 to 0.98 */
    }
    100% {
        transform: scale(1);
    }
}

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

@keyframes swipeHint {
    0%, 100% { 
        opacity: 0;
        transform: translateY(-50%) translateX(0);
    }
    50% { 
        opacity: 0.5;
        transform: translateY(-50%) translateX(10px);
    }
}

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

@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

/* Loading Screen Animations */
.loading-screen {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: var(--z-loading);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 1s;
}

.loading-screen.is-hidden {
    opacity: 0;
    pointer-events: none;
}

.loading-bar {
    width: 200px;
    height: 2px;
    background: var(--color-border);
    overflow: hidden;
    border-radius: 1px;
}

.loading-progress {
    height: 100%;
    background: var(--color-accent);
    width: 0;
    transition: width 2s cubic-bezier(0.4, 0, 0.2, 1);
}

.loading-progress.is-complete {
    width: 100%;
}

/* Portfolio Item Animations */
.portfolio-item {
    opacity: 0;
    transform: translateY(20px);
    animation: fadeInUp 0.8s forwards;
    animation-delay: calc(var(--item-index, 0) * 0.1s);
}

.portfolio-item.is-loaded {
    opacity: 1;
    transform: translateY(0);
}

/* Hover Animations */
.portfolio-link {
    transition: transform var(--transition-default);
}


/* Navigation Animations */
.nav-overlay {
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-default);
}

.nav-overlay.is-active {
    opacity: 1;
    pointer-events: auto;
}

.site-navigation {
    transform: translateX(100%);
    transition: transform var(--transition-default);
}

.site-navigation.is-open {
    transform: translateX(0);
}

/* Menu Icon Animation */
.menu-icon {
    transition: background var(--transition-default);
}

.menu-icon::before,
.menu-icon::after {
    transition: transform var(--transition-default);
}

.menu-toggle[aria-expanded="true"] .menu-icon {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
    transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
    transform: rotate(-45deg);
}

/* Nav Link Animations */
.nav-link {
    transition: all var(--transition-default);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: width var(--transition-default);
}

.nav-link:hover::after,
.nav-link:focus::after {
    width: 100%;
}

/* Scroll Animations */
.fade-in-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

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

/* Page Transitions */
.page-transition-enter {
    opacity: 0;
    transform: scale(0.95);
}

.page-transition-enter-active {
    opacity: 1;
    transform: scale(1);
    transition: opacity 0.3s, transform 0.3s;
}

.page-transition-exit {
    opacity: 1;
    transform: scale(1);
}

.page-transition-exit-active {
    opacity: 0;
    transform: scale(1.05);
    transition: opacity 0.3s, transform 0.3s;
}

/* Skeleton Loading */
.skeleton {
    animation: shimmer 1.5s ease-in-out infinite;
    background: linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.05) 25%,
        rgba(255, 255, 255, 0.1) 50%,
        rgba(255, 255, 255, 0.05) 75%
    );
    background-size: 400px 100%;
}

/* Infinite Scroll Loader */
.portfolio-loader {
    grid-column: 1 / -1;
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--color-text-muted);
    font-size: 0.875rem;
    animation: fadeIn 0.3s;
}

.portfolio-loader::after {
    content: '';
    display: inline-block;
    width: 20px;
    height: 20px;
    margin-left: var(--spacing-sm);
    border: 2px solid var(--color-border);
    border-top-color: var(--color-accent);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Touch Feedback */
@media (hover: none) and (pointer: coarse) {
    .portfolio-link:active {
        transform: scale(0.95);
        transition: transform 0.1s;
    }
    
    .nav-link:active {
        background: rgba(255, 255, 255, 0.1);
        transition: background 0.1s;
    }
    
    button:active,
    .button:active {
        transform: scale(0.95);
        transition: transform 0.1s;
    }
}

/* Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .portfolio-item {
        opacity: 1;
        transform: none;
    }
    
    .loading-progress {
        transition: none;
        width: 100%;
    }
    
    .skeleton {
        animation: none;
        background: rgba(255, 255, 255, 0.05);
    }
}

/* Focus Visible Animations */
:focus-visible {
    outline: 2px solid var(--color-accent);
    outline-offset: 2px;
    animation: pulse 0.3s ease-in-out;
}

/* Content Reveal Animation */
.reveal {
    opacity: 0;
}

.reveal.active {
    animation: fadeInUp 0.8s forwards;
}

/* Stagger Animation Helper Classes */
.stagger-1 { animation-delay: 0.1s; }
.stagger-2 { animation-delay: 0.2s; }
.stagger-3 { animation-delay: 0.3s; }
.stagger-4 { animation-delay: 0.4s; }
.stagger-5 { animation-delay: 0.5s; }
.stagger-6 { animation-delay: 0.6s; }
.stagger-7 { animation-delay: 0.7s; }
.stagger-8 { animation-delay: 0.8s; }
.stagger-9 { animation-delay: 0.9s; }
.stagger-10 { animation-delay: 1s; }

/* WordPress Admin Bar Adjustment */
.admin-bar .loading-screen,
.admin-bar .site-navigation {
    top: 32px;
}

@media screen and (max-width: 782px) {
    .admin-bar .loading-screen,
    .admin-bar .site-navigation {
        top: 46px;
    }
}

/* Print Media - Disable Animations */
@media print {
    *,
    *::before,
    *::after {
        animation: none !important;
        transition: none !important;
    }
}

/* Ensure portfolio items are hidden initially */
.portfolio-item {
    opacity: 0;
    transform: translateY(30px);
}

/* Noise canvas positioning */
#noise-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    opacity: 0.02;
    pointer-events: none;
    mix-blend-mode: multiply;
}

/* Respect reduced motion */
@media (prefers-reduced-motion: reduce) {
    .portfolio-item {
        opacity: 1 !important;
        transform: none !important;
        transition: none !important;
    }
    
    #noise-canvas {
        display: none;
    }
}