/**
 * تحسينات الواجهة والأنيميشن
 * UI Enhancements and Animations
 */

/* Loading Skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--bg-tertiary) 25%, var(--bg-hover) 50%, var(--bg-tertiary) 75%);
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
    border-radius: 8px;
}

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

.skeleton-card {
    width: 100%;
    padding-bottom: 145%;
    position: relative;
    border-radius: 10px;
}

.skeleton-text {
    height: 20px;
    margin: 10px 0;
    border-radius: 4px;
}

.skeleton-text.short {
    width: 60%;
}

/* Smooth Scrolling */
html {
    scroll-behavior: smooth;
}

/* Fade In Animation */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.6s ease forwards;
    opacity: 0;
}

.fade-in-delay-1 { animation-delay: 0.1s; }
.fade-in-delay-2 { animation-delay: 0.2s; }
.fade-in-delay-3 { animation-delay: 0.3s; }
.fade-in-delay-4 { animation-delay: 0.4s; }
.fade-in-delay-5 { animation-delay: 0.5s; }

/* Slide In Animation */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.slide-in-left {
    animation: slideInLeft 0.5s ease forwards;
}

.slide-in-right {
    animation: slideInRight 0.5s ease forwards;
}

/* Scale Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.8);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.scale-in {
    animation: scaleIn 0.4s ease forwards;
}

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

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

/* Bounce Animation */
@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

.bounce {
    animation: bounce 1s ease infinite;
}

/* Shake Animation */
@keyframes shake {
    0%, 100% { transform: translateX(0); }
    10%, 30%, 50%, 70%, 90% { transform: translateX(-5px); }
    20%, 40%, 60%, 80% { transform: translateX(5px); }
}

.shake {
    animation: shake 0.5s ease;
}

/* Hover Effects */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-8px);
    box-shadow: 0 10px 30px var(--shadow);
}

.hover-scale {
    transition: transform 0.3s ease;
}

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

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px var(--accent-primary);
}

/* Content Card Animations */
.content-card {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.content-card:hover {
    transform: translateY(-10px);
}

.content-card .card-image img {
    transition: transform 0.5s ease;
}

.content-card:hover .card-image img {
    transform: scale(1.1);
}

.content-card .card-overlay {
    transition: opacity 0.3s ease;
}

.content-card:hover .card-overlay {
    opacity: 1;
}

/* Button Animations */
.btn {
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn:active {
    transform: scale(0.95);
}

/* Loading Spinner */
@keyframes spin {
    to { transform: rotate(360deg); }
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--border-color);
    border-top-color: var(--accent-primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

.spinner-lg {
    width: 80px;
    height: 80px;
    border-width: 6px;
}

/* Progress Bar */
@keyframes progress {
    0% { width: 0; }
    100% { width: 100%; }
}

.progress-bar {
    height: 4px;
    background: var(--bg-tertiary);
    border-radius: 2px;
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--accent-primary), #ff6b6b);
    animation: progress 2s ease-in-out;
}

/* Shimmer Effect */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }
    100% {
        background-position: 1000px 0;
    }
}

.shimmer {
    background: linear-gradient(
        90deg,
        var(--bg-tertiary) 0px,
        var(--bg-hover) 40px,
        var(--bg-tertiary) 80px
    );
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}

/* Tooltip */
.tooltip {
    position: relative;
    display: inline-block;
}

.tooltip::before {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%) translateY(-10px);
    padding: 8px 12px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 13px;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease, transform 0.3s ease;
    z-index: 1000;
}

.tooltip:hover::before {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* Badge Pulse */
.badge-pulse {
    position: relative;
}

.badge-pulse::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: inherit;
    background: currentColor;
    opacity: 0;
    animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {
    0%, 100% {
        opacity: 0;
        transform: scale(1);
    }
    50% {
        opacity: 0.3;
        transform: scale(1.2);
    }
}

/* Notification Slide */
@keyframes slideInDown {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.notification {
    animation: slideInDown 0.5s ease forwards;
}

/* Page Transition */
.page-transition {
    animation: fadeIn 0.5s ease;
}

/* Stagger Animation for Lists */
.stagger-item {
    opacity: 0;
    animation: fadeIn 0.5s ease forwards;
}

.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; }

/* Lazy Load Fade In */
img[loading="lazy"] {
    opacity: 0;
    transition: opacity 0.5s ease;
}

img[loading="lazy"].loaded {
    opacity: 1;
}

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