/**
 * animations.css - 애니메이션 스타일
 * 마산집수리 교육 (행집사)
 * Cosmic Effect Theme + Toss Style Animations
 */

/* ========================================
   COSMIC EFFECTS
======================================== */
/* Cosmic Stars */
.cosmic-stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
    overflow: hidden;
}

.cosmic-stars .star {
    position: absolute;
    width: 2px;
    height: 2px;
    background: rgba(255, 255, 255, 0.8);
    border-radius: 50%;
    animation: twinkle 3s ease-in-out infinite;
}

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

/* Nebula Effect */
.nebula {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.4;
    animation: nebulaPulse 15s ease-in-out infinite;
}

.nebula-1 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.6) 0%, transparent 70%);
    top: -100px;
    right: -100px;
}

.nebula-2 {
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(118, 75, 162, 0.5) 0%, transparent 70%);
    bottom: 20%;
    left: -50px;
    animation-delay: 5s;
}

.nebula-3 {
    width: 350px;
    height: 350px;
    background: radial-gradient(circle, rgba(240, 147, 251, 0.4) 0%, transparent 70%);
    top: 40%;
    right: 20%;
    animation-delay: 10s;
}

@keyframes nebulaPulse {
    0%, 100% {
        opacity: 0.3;
        transform: scale(1);
    }
    50% {
        opacity: 0.5;
        transform: scale(1.2);
    }
}

/* Cosmic Glow */
.cosmic-glow {
    position: relative;
}

.cosmic-glow::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 120%;
    height: 120%;
    background: radial-gradient(circle, rgba(102, 126, 234, 0.2) 0%, transparent 60%);
    transform: translate(-50%, -50%);
    filter: blur(40px);
    z-index: -1;
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% {
        opacity: 0.5;
    }
    50% {
        opacity: 0.8;
    }
}

/* ========================================
   ENTRANCE ANIMATIONS
======================================== */
/* Fade In */
.fade-in {
    opacity: 0;
    animation: fadeIn 0.6s ease-out forwards;
}

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

/* Fade In Up */
.fade-in-up {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.6s ease-out forwards;
}

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

/* Fade In Down */
.fade-in-down {
    opacity: 0;
    transform: translateY(-30px);
    animation: fadeInDown 0.6s ease-out forwards;
}

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

/* Fade In Left */
.fade-in-left {
    opacity: 0;
    transform: translateX(-30px);
    animation: fadeInLeft 0.6s ease-out forwards;
}

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

/* Fade In Right */
.fade-in-right {
    opacity: 0;
    transform: translateX(30px);
    animation: fadeInRight 0.6s ease-out forwards;
}

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

/* Scale In */
.scale-in {
    opacity: 0;
    transform: scale(0.9);
    animation: scaleIn 0.6s ease-out forwards;
}

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

/* Bounce In */
.bounce-in {
    opacity: 0;
    transform: scale(0.3);
    animation: bounceIn 0.8s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes bounceIn {
    from {
        opacity: 0;
        transform: scale(0.3);
    }
    50% {
        opacity: 1;
        transform: scale(1.05);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ========================================
   SCROLL ANIMATIONS (Intersection Observer)
======================================== */
[data-animate] {
    opacity: 0;
    transition: all 0.6s ease-out;
}

[data-animate].animated {
    opacity: 1;
}

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

[data-animate="fade-up"].animated {
    transform: translateY(0);
}

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

[data-animate="fade-down"].animated {
    transform: translateY(0);
}

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

[data-animate="fade-left"].animated {
    transform: translateX(0);
}

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

[data-animate="fade-right"].animated {
    transform: translateX(0);
}

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

[data-animate="scale"].animated {
    transform: scale(1);
}

[data-animate="zoom-in"] {
    transform: scale(0.5);
}

[data-animate="zoom-in"].animated {
    transform: scale(1);
}

/* Staggered Animation Delays */
[data-animate-delay="100"] { transition-delay: 100ms; }
[data-animate-delay="200"] { transition-delay: 200ms; }
[data-animate-delay="300"] { transition-delay: 300ms; }
[data-animate-delay="400"] { transition-delay: 400ms; }
[data-animate-delay="500"] { transition-delay: 500ms; }
[data-animate-delay="600"] { transition-delay: 600ms; }
[data-animate-delay="700"] { transition-delay: 700ms; }
[data-animate-delay="800"] { transition-delay: 800ms; }

/* ========================================
   HOVER ANIMATIONS
======================================== */
/* Lift Effect */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

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

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

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

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

/* Shine Effect */
.hover-shine {
    position: relative;
    overflow: hidden;
}

.hover-shine::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(
        90deg,
        transparent 0%,
        rgba(255, 255, 255, 0.2) 50%,
        transparent 100%
    );
    transition: left 0.5s ease;
}

.hover-shine:hover::before {
    left: 100%;
}

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

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

/* Border Glow */
.hover-border-glow {
    position: relative;
}

.hover-border-glow::after {
    content: '';
    position: absolute;
    top: -2px;
    left: -2px;
    right: -2px;
    bottom: -2px;
    background: var(--gradient-cosmic);
    border-radius: inherit;
    z-index: -1;
    opacity: 0;
    transition: opacity var(--transition-base);
}

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

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

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

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

/* Spin */
.spin {
    animation: spin 2s linear infinite;
}

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

/* Wiggle */
.wiggle {
    animation: wiggle 1s ease-in-out infinite;
}

@keyframes wiggle {
    0%, 100% {
        transform: rotate(0deg);
    }
    25% {
        transform: rotate(3deg);
    }
    75% {
        transform: rotate(-3deg);
    }
}

/* Heartbeat */
.heartbeat {
    animation: heartbeat 1.5s ease-in-out infinite;
}

@keyframes heartbeat {
    0%, 100% {
        transform: scale(1);
    }
    14% {
        transform: scale(1.1);
    }
    28% {
        transform: scale(1);
    }
    42% {
        transform: scale(1.1);
    }
    70% {
        transform: scale(1);
    }
}

/* ========================================
   COUNTER ANIMATION
======================================== */
.counter {
    font-variant-numeric: tabular-nums;
}

/* ========================================
   TEXT ANIMATIONS
======================================== */
/* Typing Effect */
.typing {
    overflow: hidden;
    border-right: 3px solid var(--primary);
    white-space: nowrap;
    animation: typing 3s steps(40) 1s forwards, blink 0.75s step-end infinite;
}

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

@keyframes blink {
    50% {
        border-color: transparent;
    }
}

/* Gradient Text Animation */
.gradient-text-animate {
    background: linear-gradient(
        90deg,
        var(--primary) 0%,
        var(--secondary) 25%,
        var(--accent) 50%,
        var(--secondary) 75%,
        var(--primary) 100%
    );
    background-size: 200% auto;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    animation: gradientText 3s linear infinite;
}

@keyframes gradientText {
    to {
        background-position: 200% center;
    }
}

/* Wave Text */
.wave-text span {
    display: inline-block;
    animation: waveText 1s ease-in-out infinite;
}

.wave-text span:nth-child(1) { animation-delay: 0s; }
.wave-text span:nth-child(2) { animation-delay: 0.1s; }
.wave-text span:nth-child(3) { animation-delay: 0.2s; }
.wave-text span:nth-child(4) { animation-delay: 0.3s; }
.wave-text span:nth-child(5) { animation-delay: 0.4s; }
.wave-text span:nth-child(6) { animation-delay: 0.5s; }
.wave-text span:nth-child(7) { animation-delay: 0.6s; }
.wave-text span:nth-child(8) { animation-delay: 0.7s; }

@keyframes waveText {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* ========================================
   LOADING ANIMATIONS
======================================== */
/* Dots Loading */
.loading-dots {
    display: flex;
    gap: 4px;
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    animation: loadingDots 1.4s ease-in-out infinite both;
}

.loading-dots span:nth-child(1) { animation-delay: 0s; }
.loading-dots span:nth-child(2) { animation-delay: 0.16s; }
.loading-dots span:nth-child(3) { animation-delay: 0.32s; }

@keyframes loadingDots {
    0%, 80%, 100% {
        transform: scale(0.6);
        opacity: 0.5;
    }
    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Spinner */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-light);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* Progress Bar */
.loading-progress {
    height: 4px;
    background: var(--border-light);
    border-radius: 2px;
    overflow: hidden;
}

.loading-progress-bar {
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 2px;
    animation: progressBar 2s ease-in-out infinite;
}

@keyframes progressBar {
    0% {
        width: 0;
        margin-left: 0;
    }
    50% {
        width: 100%;
        margin-left: 0;
    }
    100% {
        width: 0;
        margin-left: 100%;
    }
}

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

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

/* ========================================
   PARTICLE EFFECTS
======================================== */
.particles {
    position: relative;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary);
    border-radius: 50%;
    opacity: 0;
    animation: particleFloat 4s ease-in-out infinite;
}

@keyframes particleFloat {
    0% {
        opacity: 0;
        transform: translateY(100%) scale(0);
    }
    10% {
        opacity: 1;
    }
    90% {
        opacity: 1;
    }
    100% {
        opacity: 0;
        transform: translateY(-100vh) scale(1);
    }
}

/* ========================================
   RIPPLE EFFECT
======================================== */
.ripple {
    position: relative;
    overflow: hidden;
}

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

.ripple:active::after {
    transform: translate(-50%, -50%) scale(0);
    opacity: 0.3;
    transition: 0s;
}

/* ========================================
   MORPHING SHAPES
======================================== */
.morph {
    animation: morph 8s ease-in-out infinite;
}

@keyframes morph {
    0%, 100% {
        border-radius: 60% 40% 30% 70% / 60% 30% 70% 40%;
    }
    25% {
        border-radius: 30% 60% 70% 40% / 50% 60% 30% 60%;
    }
    50% {
        border-radius: 50% 60% 30% 60% / 30% 60% 70% 40%;
    }
    75% {
        border-radius: 60% 40% 60% 30% / 70% 30% 50% 60%;
    }
}

/* ========================================
   TOSS-STYLE MICRO INTERACTIONS
======================================== */
/* Card Tap */
.tap-effect {
    transition: transform 0.1s ease;
}

.tap-effect:active {
    transform: scale(0.98);
}

/* Button Press */
.btn-press {
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.btn-press:active {
    transform: scale(0.95) translateY(2px);
    box-shadow: none;
}

/* Toggle Switch Animation */
.toggle-switch {
    transition: background-color 0.3s ease;
}

.toggle-switch .toggle-handle {
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* Number Change Animation */
.number-change {
    display: inline-block;
    transition: transform 0.2s ease, opacity 0.2s ease;
}

.number-change.changing {
    transform: translateY(-100%);
    opacity: 0;
}

/* Success Checkmark */
.success-check {
    animation: successCheck 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes successCheck {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

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

    [data-animate] {
        opacity: 1;
        transform: none;
    }
}