/**
 * animations.css - Animation Styles
 * 프로그래머 문호영 - Corporate Website
 *
 * Includes: scroll animations, hover effects, transitions
 *
 * @package TION_Corporate
 * @version 1.0.0
 */

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

/* Fade Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

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

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

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

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

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

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

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

@keyframes zoomIn {
    from {
        opacity: 0;
        transform: scale(0.5);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

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

/* Slide Animations */
@keyframes slideInUp {
    from {
        transform: translateY(100%);
    }
    to {
        transform: translateY(0);
    }
}

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

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

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

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

@keyframes spinReverse {
    from {
        transform: rotate(360deg);
    }
    to {
        transform: rotate(0deg);
    }
}

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

@keyframes pulseScale {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

@keyframes heartbeat {
    0% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.3);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.3);
    }
    70% {
        transform: scale(1);
    }
}

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

@keyframes bounceLight {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

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

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

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

@keyframes floatSlow {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-5px);
    }
}

/* Glow Animations */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(102, 126, 234, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(102, 126, 234, 0.8), 0 0 40px rgba(102, 126, 234, 0.4);
    }
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.5;
        transform: scale(1);
    }
    50% {
        opacity: 1;
        transform: scale(1.1);
    }
}

/* Shimmer Animation (Loading skeleton) */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }
    100% {
        background-position: 200% 0;
    }
}

/* Cosmic Theme Specific Animations */
@keyframes cosmicGlow {
    0%, 100% {
        filter: drop-shadow(0 0 10px rgba(102, 126, 234, 0.5));
    }
    50% {
        filter: drop-shadow(0 0 20px rgba(118, 75, 162, 0.8));
    }
}

@keyframes starTwinkle {
    0%, 100% {
        opacity: 0.3;
        transform: scale(0.8);
    }
    50% {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes nebulaSwirl {
    0% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(1.1);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

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

/* Basic Animations */
.animate-fadeIn {
    animation: fadeIn 0.5s ease forwards;
}

.animate-fadeInUp {
    animation: fadeInUp 0.6s ease forwards;
}

.animate-fadeInDown {
    animation: fadeInDown 0.6s ease forwards;
}

.animate-fadeInLeft {
    animation: fadeInLeft 0.6s ease forwards;
}

.animate-fadeInRight {
    animation: fadeInRight 0.6s ease forwards;
}

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

.animate-bounceIn {
    animation: bounceIn 0.6s ease forwards;
}

.animate-bounce {
    animation: bounce 2s ease infinite;
}

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

.animate-spin {
    animation: spin 1s linear infinite;
}

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

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

/* Animation Delays */
.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-400 {
    animation-delay: 400ms;
}

.delay-500 {
    animation-delay: 500ms;
}

.delay-700 {
    animation-delay: 700ms;
}

.delay-1000 {
    animation-delay: 1000ms;
}

/* Animation Durations */
.duration-fast {
    animation-duration: 200ms;
}

.duration-normal {
    animation-duration: 400ms;
}

.duration-slow {
    animation-duration: 800ms;
}

/* ==========================================================================
   Scroll Reveal Animations
   ========================================================================== */

/* Initial state for scroll reveal elements */
[data-reveal] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-reveal="up"] {
    transform: translateY(40px);
}

[data-reveal="down"] {
    transform: translateY(-40px);
}

[data-reveal="left"] {
    transform: translateX(-40px);
}

[data-reveal="right"] {
    transform: translateX(40px);
}

[data-reveal="scale"] {
    transform: scale(0.9);
}

[data-reveal="fade"] {
    /* Just fade, no transform */
}

/* Revealed state */
[data-reveal].revealed {
    opacity: 1;
    transform: translateY(0) translateX(0) scale(1);
}

/* Stagger animation delays for children */
[data-reveal-stagger] > * {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

[data-reveal-stagger].revealed > *:nth-child(1) { transition-delay: 0ms; }
[data-reveal-stagger].revealed > *:nth-child(2) { transition-delay: 100ms; }
[data-reveal-stagger].revealed > *:nth-child(3) { transition-delay: 200ms; }
[data-reveal-stagger].revealed > *:nth-child(4) { transition-delay: 300ms; }
[data-reveal-stagger].revealed > *:nth-child(5) { transition-delay: 400ms; }
[data-reveal-stagger].revealed > *:nth-child(6) { transition-delay: 500ms; }
[data-reveal-stagger].revealed > *:nth-child(7) { transition-delay: 600ms; }
[data-reveal-stagger].revealed > *:nth-child(8) { transition-delay: 700ms; }
[data-reveal-stagger].revealed > *:nth-child(9) { transition-delay: 800ms; }
[data-reveal-stagger].revealed > *:nth-child(10) { transition-delay: 900ms; }

[data-reveal-stagger].revealed > * {
    opacity: 1;
    transform: translateY(0);
}

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

/* 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);
}

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

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

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

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

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

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

/* Gradient shift on hover */
.hover-gradient {
    background-size: 200% 200%;
    transition: background-position var(--transition-slow);
}

.hover-gradient:hover {
    background-position: 100% 100%;
}

/* Border glow on hover */
.hover-border-glow {
    position: relative;
    transition: all var(--transition-normal);
}

.hover-border-glow::before {
    content: '';
    position: absolute;
    inset: -2px;
    background: var(--gradient-cosmic);
    border-radius: inherit;
    opacity: 0;
    z-index: -1;
    transition: opacity var(--transition-normal);
}

.hover-border-glow:hover::before {
    opacity: 1;
}

/* Underline animation */
.hover-underline {
    position: relative;
}

.hover-underline::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-cosmic);
    transition: width var(--transition-normal);
}

.hover-underline:hover::after {
    width: 100%;
}

/* Arrow slide on hover */
.hover-arrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

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

.hover-arrow:hover .arrow {
    transform: translateX(4px);
}

/* ==========================================================================
   Loading Skeleton
   ========================================================================== */

.skeleton {
    background: linear-gradient(
        90deg,
        var(--bg-secondary) 25%,
        var(--bg-tertiary) 50%,
        var(--bg-secondary) 75%
    );
    background-size: 200% 100%;
    animation: shimmer 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: 48px;
    height: 48px;
    border-radius: var(--radius-full);
}

.skeleton-image {
    aspect-ratio: 16/9;
}

.skeleton-card {
    padding: var(--space-4);
    background: var(--bg-primary);
    border-radius: var(--radius-xl);
}

/* ==========================================================================
   Page Transitions
   ========================================================================== */

.page-transition-enter {
    opacity: 0;
}

.page-transition-enter-active {
    opacity: 1;
    transition: opacity 300ms ease;
}

.page-transition-exit {
    opacity: 1;
}

.page-transition-exit-active {
    opacity: 0;
    transition: opacity 300ms ease;
}

/* ==========================================================================
   Slider Animations
   ========================================================================== */

.slider-fade-enter {
    opacity: 0;
}

.slider-fade-enter-active {
    opacity: 1;
    transition: opacity 500ms ease;
}

.slider-fade-exit {
    opacity: 1;
}

.slider-fade-exit-active {
    opacity: 0;
    transition: opacity 500ms ease;
}

.slider-slide-enter {
    transform: translateX(100%);
}

.slider-slide-enter-active {
    transform: translateX(0);
    transition: transform 500ms ease;
}

.slider-slide-exit {
    transform: translateX(0);
}

.slider-slide-exit-active {
    transform: translateX(-100%);
    transition: transform 500ms ease;
}

/* ==========================================================================
   Counter Animation
   ========================================================================== */

.counter {
    display: inline-block;
    font-variant-numeric: tabular-nums;
}

/* ==========================================================================
   Text Animations
   ========================================================================== */

/* Typing animation */
.typing {
    overflow: hidden;
    white-space: nowrap;
    border-right: 2px solid var(--color-primary);
    animation:
        typing 3s steps(40, end),
        blink-caret 0.75s step-end infinite;
}

@keyframes typing {
    from { width: 0; }
    to { width: 100%; }
}

@keyframes blink-caret {
    from, to { border-color: transparent; }
    50% { border-color: var(--color-primary); }
}

/* Gradient text animation */
.gradient-text-animate {
    background: linear-gradient(
        270deg,
        var(--color-primary),
        var(--color-secondary),
        var(--color-accent),
        var(--color-primary)
    );
    background-size: 400% 400%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientShift 8s ease infinite;
}

/* ==========================================================================
   Attention Seekers
   ========================================================================== */

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

.notification-pulse::after {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 8px;
    height: 8px;
    background: var(--color-error);
    border-radius: var(--radius-full);
    animation: pulseScale 2s ease-in-out infinite;
}

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

.ripple::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-full);
    transform: translate(-50%, -50%);
    transition: width 0.5s ease, height 0.5s ease;
}

.ripple:active::after {
    width: 300px;
    height: 300px;
}

/* ==========================================================================
   Cosmic/Space Theme Animations
   ========================================================================== */

/* Star field background */
.star-field {
    position: absolute;
    width: 100%;
    height: 100%;
    overflow: hidden;
}

.star-field .star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: white;
    border-radius: var(--radius-full);
    animation: starTwinkle 2s ease-in-out infinite;
}

.star-field .star:nth-child(odd) {
    animation-delay: 0.5s;
}

.star-field .star:nth-child(3n) {
    animation-delay: 1s;
    animation-duration: 3s;
}

/* Nebula blob */
.nebula-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
    animation: nebulaSwirl 20s ease-in-out infinite;
}

.nebula-blob.primary {
    background: var(--color-primary);
}

.nebula-blob.secondary {
    background: var(--color-secondary);
    animation-delay: -10s;
    animation-direction: reverse;
}

.nebula-blob.accent {
    background: var(--color-accent);
    animation-delay: -5s;
}

/* Orbit animation */
@keyframes orbit {
    from {
        transform: rotate(0deg) translateX(100px) rotate(0deg);
    }
    to {
        transform: rotate(360deg) translateX(100px) rotate(-360deg);
    }
}

.orbit {
    animation: orbit 10s linear infinite;
}

/* Meteor animation */
@keyframes meteor {
    0% {
        opacity: 1;
        transform: translate(0, 0);
    }
    100% {
        opacity: 0;
        transform: translate(-200px, 200px);
    }
}

.meteor {
    width: 2px;
    height: 2px;
    background: linear-gradient(to right, white, transparent);
    transform-origin: right;
    animation: meteor 1s ease-in infinite;
}

/* ==========================================================================
   Reduced Motion - Disable animations when preferred
   ========================================================================== */

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

    [data-reveal],
    [data-reveal].revealed,
    [data-reveal-stagger] > *,
    [data-reveal-stagger].revealed > * {
        opacity: 1;
        transform: none;
        transition: none;
    }

    .typing {
        animation: none;
        border-right: none;
        width: auto;
    }

    .skeleton {
        animation: none;
    }
}