/**
 * ily.dog Animations & Micro-interactions
 * Smooth, performant animations for enhanced UX
 */

/* ========== Keyframe Animations ========== */

/* Fade animations */
@keyframes fade-in {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fade-out {
    from { opacity: 1; }
    to { opacity: 0; }
}

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

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

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

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

/* Scale animations */
@keyframes scale-in {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

@keyframes pop {
    0% { transform: scale(1); }
    50% { transform: scale(1.1); }
    100% { transform: scale(1); }
}

/* Slide animations */
@keyframes slide-in-up {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

@keyframes slide-in-down {
    from {
        transform: translateY(-100%);
    }
    to {
        transform: translateY(0);
    }
}

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

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

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

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

@keyframes wiggle {
    0%, 100% { transform: rotate(-3deg); }
    50% { transform: rotate(3deg); }
}

/* Bounce animations */
@keyframes bounce {
    0%, 100% {
        transform: translateY(-5%);
        animation-timing-function: cubic-bezier(0.8, 0, 1, 1);
    }
    50% {
        transform: translateY(0);
        animation-timing-function: cubic-bezier(0, 0, 0.2, 1);
    }
}

@keyframes bounce-in {
    0% {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        transform: scale(1.05);
    }
    70% {
        transform: scale(0.9);
    }
    100% {
        opacity: 1;
        transform: scale(1);
    }
}

/* Pulse animations */
@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 0 0 0 rgba(99, 102, 241, 0.4);
    }
    50% {
        box-shadow: 0 0 0 10px rgba(99, 102, 241, 0);
    }
}

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

/* Float animation */
@keyframes float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

/* Ripple effect */
@keyframes ripple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

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

/* Typing indicator */
@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); }
    30% { transform: translateY(-5px); }
}

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

/* Fade animations */
.animate-fade-in {
    animation: fade-in var(--transition-normal) forwards;
}

.animate-fade-out {
    animation: fade-out var(--transition-normal) forwards;
}

.animate-fade-in-up {
    animation: fade-in-up var(--transition-slow) forwards;
}

.animate-fade-in-down {
    animation: fade-in-down var(--transition-slow) forwards;
}

.animate-fade-in-left {
    animation: fade-in-left var(--transition-slow) forwards;
}

.animate-fade-in-right {
    animation: fade-in-right var(--transition-slow) forwards;
}

/* Scale animations */
.animate-scale-in {
    animation: scale-in var(--transition-normal) forwards;
}

.animate-scale-out {
    animation: scale-out var(--transition-normal) forwards;
}

.animate-pop {
    animation: pop var(--transition-fast);
}

/* Slide animations */
.animate-slide-in-up {
    animation: slide-in-up var(--transition-slow) forwards;
}

.animate-slide-in-down {
    animation: slide-in-down var(--transition-slow) forwards;
}

.animate-slide-in-left {
    animation: slide-in-left var(--transition-slow) forwards;
}

.animate-slide-in-right {
    animation: slide-in-right var(--transition-slow) forwards;
}

/* Rotate animations */
.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-spin-slow {
    animation: spin-slow 3s linear infinite;
}

.animate-wiggle {
    animation: wiggle var(--transition-slow) ease-in-out;
}

/* Bounce animations */
.animate-bounce {
    animation: bounce 1s infinite;
}

.animate-bounce-in {
    animation: bounce-in 0.6s forwards;
}

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

.animate-pulse-glow {
    animation: pulse-glow 2s infinite;
}

/* Shake animation */
.animate-shake {
    animation: shake 0.5s;
}

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

/* ========== Hover Animations ========== */

/* Scale on hover */
.hover-scale {
    transition: transform var(--transition-fast);
}

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

.hover-scale-sm:hover {
    transform: scale(1.02);
}

.hover-scale-lg:hover {
    transform: scale(1.1);
}

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

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-lift-sm:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.hover-lift-lg:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
}

/* Glow on hover */
.hover-glow {
    transition: box-shadow var(--transition-normal);
}

.hover-glow:hover {
    box-shadow: var(--shadow-glow);
}

.hover-glow-success:hover {
    box-shadow: var(--shadow-glow-success);
}

.hover-glow-danger:hover {
    box-shadow: var(--shadow-glow-danger);
}

/* Border glow on hover */
.hover-border-glow {
    transition: 
        border-color var(--transition-normal),
        box-shadow var(--transition-normal);
}

.hover-border-glow:hover {
    border-color: var(--color-accent-primary);
    box-shadow: 0 0 0 3px var(--color-accent-primary-subtle);
}

/* Rotate on hover */
.hover-rotate {
    transition: transform var(--transition-normal);
}

.hover-rotate:hover {
    transform: rotate(5deg);
}

.hover-rotate-reverse:hover {
    transform: rotate(-5deg);
}

/* ========== Focus Animations ========== */
.focus-ring:focus {
    outline: none;
    box-shadow: 0 0 0 3px var(--color-accent-primary-subtle);
}

.focus-ring:focus-visible {
    outline: 2px solid var(--color-border-focus);
    outline-offset: 2px;
}

/* ========== Active Animations ========== */
.active-scale:active {
    transform: scale(0.98);
}

.active-scale-sm:active {
    transform: scale(0.95);
}

/* ========== Transition Utilities ========== */
.transition-all {
    transition: all var(--transition-normal);
}

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

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

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

.transition-shadow {
    transition: box-shadow var(--transition-fast);
}

.transition-fast {
    transition-duration: var(--transition-fast);
}

.transition-slow {
    transition-duration: var(--transition-slow);
}

.transition-slower {
    transition-duration: var(--transition-slower);
}

/* ========== Stagger Animations ========== */
.stagger-1 { animation-delay: 50ms; }
.stagger-2 { animation-delay: 100ms; }
.stagger-3 { animation-delay: 150ms; }
.stagger-4 { animation-delay: 200ms; }
.stagger-5 { animation-delay: 250ms; }
.stagger-6 { animation-delay: 300ms; }
.stagger-7 { animation-delay: 350ms; }
.stagger-8 { animation-delay: 400ms; }

/* ========== Skeleton Loading ========== */
.skeleton {
    background: linear-gradient(
        90deg,
        var(--color-bg-tertiary) 25%,
        var(--color-bg-elevated) 50%,
        var(--color-bg-tertiary) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--space-2);
}

.skeleton-text:last-child {
    width: 80%;
}

.skeleton-title {
    height: 1.5em;
    width: 60%;
    margin-bottom: var(--space-4);
}

.skeleton-avatar {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
}

.skeleton-card {
    height: 200px;
}

.skeleton-button {
    height: 40px;
    width: 100px;
    border-radius: var(--radius-lg);
}

/* ========== Ripple Effect ========== */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::after {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    top: 0;
    left: 0;
    pointer-events: none;
    background-image: radial-gradient(circle, var(--color-text-primary) 10%, transparent 10.01%);
    background-repeat: no-repeat;
    background-position: 50%;
    transform: scale(10, 10);
    opacity: 0;
    transition: transform 0.5s, opacity 1s;
}

.ripple:active::after {
    transform: scale(0, 0);
    opacity: 0.3;
    transition: 0s;
}

/* ========== Typing Indicator ========== */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--space-2) var(--space-3);
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--color-text-muted);
    border-radius: var(--radius-full);
    animation: typing 1.4s infinite ease-in-out;
}

.typing-indicator span:nth-child(1) { animation-delay: 0s; }
.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

/* ========== Progress Bar ========== */
.progress-bar {
    height: 4px;
    background: var(--color-bg-tertiary);
    border-radius: var(--radius-full);
    overflow: hidden;
}

.progress-bar-fill {
    height: 100%;
    background: var(--color-accent-primary);
    border-radius: var(--radius-full);
    transition: width var(--transition-slow);
}

.progress-bar-animated .progress-bar-fill {
    position: relative;
    overflow: hidden;
}

.progress-bar-animated .progress-bar-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(
        90deg,
        transparent,
        rgba(255, 255, 255, 0.2),
        transparent
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ========== Notification Badge ========== */
.notification-badge {
    position: relative;
}

.notification-badge::after {
    content: attr(data-count);
    position: absolute;
    top: -8px;
    right: -8px;
    min-width: 18px;
    height: 18px;
    padding: 0 4px;
    background: var(--color-accent-danger);
    color: white;
    font-size: 10px;
    font-weight: var(--font-bold);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: bounce-in 0.3s;
}

/* ========== Glow Effects ========== */
.glow {
    box-shadow: var(--shadow-glow);
}

.glow-success {
    box-shadow: var(--shadow-glow-success);
}

.glow-danger {
    box-shadow: var(--shadow-glow-danger);
}

.glow-pulse {
    animation: pulse-glow 2s infinite;
}

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