/* ==========================================================================
   Fun Projects - Animations
   ========================================================================== */

/* Keyframes */
@keyframes dice-bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0) rotate(0deg);
    }
    40% {
        transform: translateY(-8px) rotate(5deg);
    }
    60% {
        transform: translateY(-4px) rotate(-3deg);
    }
}

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

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

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

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    10%, 30%, 50%, 70%, 90% {
        transform: translateX(-2px);
    }
    20%, 40%, 60%, 80% {
        transform: translateX(2px);
    }
}

@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px var(--color-primary);
    }
    50% {
        box-shadow: 0 0 20px var(--color-primary), 0 0 30px var(--color-primary);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-6px);
    }
}

/* Page load animations */
.container {
    animation: fade-in 0.6s ease-out;
}

.header-content {
    animation: fade-in 0.8s ease-out 0.2s both;
}

/* Project cards staggered animation */
.project-card {
    animation: fade-in 0.5s ease-out both;
}

.project-card:nth-child(1) { animation-delay: 0.1s; }
.project-card:nth-child(2) { animation-delay: 0.15s; }
.project-card:nth-child(3) { animation-delay: 0.2s; }
.project-card:nth-child(4) { animation-delay: 0.25s; }
.project-card:nth-child(5) { animation-delay: 0.3s; }
.project-card:nth-child(6) { animation-delay: 0.35s; }
.project-card:nth-child(7) { animation-delay: 0.4s; }
.project-card:nth-child(8) { animation-delay: 0.45s; }

/* Controls animation */
.controls {
    animation: slide-in-left 0.6s ease-out 0.3s both;
}

/* Language badges hover effect */
.language-badge {
    transition: all var(--transition-fast);
    position: relative;
    overflow: hidden;
}

.language-badge::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s;
}

.language-badge:hover::before {
    left: 100%;
}

.language-badge:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* GitHub link animation */
.github-link {
    position: relative;
}

.github-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background-color: var(--color-primary);
    transition: all var(--transition-fast);
    transform: translateX(-50%);
}

.github-link:hover::after {
    width: 100%;
}

/* Search input focus animation */
.search-box input:focus {
    animation: glow 2s ease-in-out infinite;
}

/* Filter buttons animation */
.filter-btn {
    position: relative;
    overflow: hidden;
}

.filter-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent);
    transition: left 0.3s;
}

.filter-btn:hover::before {
    left: 100%;
}

/* Theme toggle animation */
.theme-toggle {
    position: relative;
}

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

.theme-toggle:hover i {
    transform: rotate(180deg);
}

/* Project icon hover */
.project-icon {
    transition: all var(--transition-fast);
}

.project-card:hover .project-icon {
    transform: rotate(15deg) scale(1.1);
}

/* Loading animation for when projects are being fetched */
.loading-skeleton {
    background: linear-gradient(90deg, var(--color-bg-secondary) 25%, var(--color-border) 50%, var(--color-bg-secondary) 75%);
    background-size: 200% 100%;
    animation: loading-shimmer 1.5s infinite;
}

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

/* Smooth transitions for theme switching */
* {
    transition: background-color var(--transition-normal),
    color var(--transition-normal),
    border-color var(--transition-normal);
}

/* Reduce motion for users who prefer it */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .dice-icon {
        animation: none;
    }

    .project-card:hover {
        transform: none;
    }

    .theme-toggle:hover {
        transform: none;
    }
}

/* Focus styles for accessibility */
.filter-btn:focus,
.lang-link:focus,
.github-link:focus,
.theme-toggle:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.search-box input:focus {
    outline: none; /* We use box-shadow instead */
}

/* Animation utilities */
.animate-pulse {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

.animate-bounce {
    animation: dice-bounce 1s infinite;
}

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

/* Hover effects for project cards */
.project-card {
    position: relative;
}

.project-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%),
    rgba(99, 102, 241, 0.05) 0%,
    transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

.project-card:hover::after {
    opacity: 1;
}

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}