/* ================================================
   Punjabi Typing Tutorial - Animation Styles
   Celebrations, effects, and micro-interactions
   ================================================ */

/* ================================================
   CONFETTI ANIMATION
   ================================================ */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    top: -20px;
    animation: confettiFall 3s linear forwards;
}

@keyframes confettiFall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* Punjabi-themed confetti colors */
.confetti-piece.color-0 { background: var(--accent-primary); }
.confetti-piece.color-1 { background: var(--accent-secondary); }
.confetti-piece.color-2 { background: var(--accent-tertiary); }
.confetti-piece.color-3 { background: var(--accent-gold); }
.confetti-piece.color-4 { background: var(--accent-green); }
.confetti-piece.color-5 { background: var(--accent-orange); }

.confetti-piece.circle { border-radius: 50%; }
.confetti-piece.square { border-radius: 2px; }
.confetti-piece.strip { width: 5px; height: 15px; border-radius: 2px; }

/* ================================================
   XP POPUP ANIMATION
   ================================================ */
.xp-popup {
    position: fixed;
    font-family: 'Poppins', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--accent-gold);
    text-shadow: 0 0 20px rgba(255, 217, 61, 0.5);
    pointer-events: none;
    z-index: 1000;
    animation: xpFloat 1.5s ease-out forwards;
}

@keyframes xpFloat {
    0% {
        transform: translateY(0) scale(0.5);
        opacity: 0;
    }
    20% {
        transform: translateY(-20px) scale(1.2);
        opacity: 1;
    }
    100% {
        transform: translateY(-80px) scale(1);
        opacity: 0;
    }
}

/* ================================================
   ACHIEVEMENT UNLOCK ANIMATION
   ================================================ */
.achievement-unlock {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    background: linear-gradient(135deg, var(--accent-tertiary), var(--accent-primary));
    padding: var(--spacing-xl);
    border-radius: var(--radius-xl);
    text-align: center;
    z-index: 1001;
    opacity: 0;
    transition: all 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.achievement-unlock.active {
    transform: translate(-50%, -50%) scale(1);
    opacity: 1;
}

.achievement-unlock::before {
    content: '';
    position: absolute;
    top: -3px;
    left: -3px;
    right: -3px;
    bottom: -3px;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-primary));
    border-radius: var(--radius-xl);
    z-index: -1;
    animation: achievementGlow 2s infinite;
}

@keyframes achievementGlow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.achievement-unlock-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: achievementBounce 0.6s ease;
}

@keyframes achievementBounce {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.3); }
}

.achievement-unlock-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    opacity: 0.8;
    margin-bottom: var(--spacing-xs);
}

.achievement-unlock-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: var(--spacing-xs);
}

.achievement-unlock-desc {
    font-size: 0.85rem;
    opacity: 0.7;
}

/* ================================================
   LEVEL UP ANIMATION
   ================================================ */
.level-up-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1002;
}

.level-up-overlay.active {
    display: flex;
    animation: levelFadeIn 0.3s ease;
}

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

.level-up-content {
    text-align: center;
    animation: levelUpPop 0.6s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

@keyframes levelUpPop {
    0% { transform: scale(0) rotate(-10deg); }
    60% { transform: scale(1.1) rotate(5deg); }
    100% { transform: scale(1) rotate(0deg); }
}

.level-up-badge {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent-gold), var(--accent-orange));
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto var(--spacing-lg);
    box-shadow: 0 0 50px rgba(255, 217, 61, 0.5);
    animation: levelBadgeSpin 1s ease;
}

@keyframes levelBadgeSpin {
    0% { transform: rotate(0deg) scale(0); }
    50% { transform: rotate(180deg) scale(1.2); }
    100% { transform: rotate(360deg) scale(1); }
}

.level-up-badge-inner {
    font-size: 4rem;
}

.level-up-title {
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--accent-gold);
    margin-bottom: var(--spacing-sm);
}

.level-up-name {
    font-size: 2.5rem;
    font-weight: 800;
    color: white;
    margin-bottom: var(--spacing-md);
}

.level-up-xp {
    font-size: 1.2rem;
    opacity: 0.7;
}

/* ================================================
   STREAK FIRE ANIMATION
   ================================================ */
.streak-fire {
    display: inline-block;
    animation: fireFlicker 0.5s infinite alternate;
}

@keyframes fireFlicker {
    0% { transform: scale(1) rotate(-2deg); }
    100% { transform: scale(1.1) rotate(2deg); }
}

.streak-counter {
    position: relative;
}

.streak-counter::after {
    content: '';
    position: absolute;
    top: -5px;
    right: -5px;
    width: 20px;
    height: 20px;
    background: var(--streak-fire);
    border-radius: 50%;
    animation: streakPulse 1s infinite;
}

@keyframes streakPulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.3); opacity: 0.7; }
}

/* ================================================
   LESSON UNLOCK ANIMATION
   ================================================ */
.lesson-unlocking {
    animation: lessonUnlock 0.8s ease forwards;
}

@keyframes lessonUnlock {
    0% {
        transform: scale(0.8);
        opacity: 0.5;
    }
    50% {
        transform: scale(1.1);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

/* ================================================
   PERFECT SCORE CELEBRATION
   ================================================ */
.perfect-celebration {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 3rem;
    z-index: 1000;
    animation: perfectPop 0.6s ease forwards;
}

@keyframes perfectPop {
    0% { transform: translate(-50%, -50%) scale(0); opacity: 0; }
    50% { transform: translate(-50%, -50%) scale(1.3); }
    100% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
}

.perfect-stars {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    margin-top: var(--spacing-md);
}

.perfect-star {
    font-size: 2rem;
    animation: starSpin 0.8s ease forwards;
    opacity: 0;
}

.perfect-star:nth-child(1) { animation-delay: 0.1s; }
.perfect-star:nth-child(2) { animation-delay: 0.3s; }
.perfect-star:nth-child(3) { animation-delay: 0.5s; }

@keyframes starSpin {
    0% { transform: scale(0) rotate(-180deg); opacity: 0; }
    100% { transform: scale(1) rotate(0deg); opacity: 1; }
}

/* ================================================
   PROGRESS BAR FILL ANIMATION
   ================================================ */
.progress-fill-animate {
    animation: progressGrow 1s ease-out forwards;
}

@keyframes progressGrow {
    0% { width: 0; }
}

/* ================================================
   BUTTON PRESS EFFECT
   ================================================ */
.btn-press {
    transition: transform 0.1s;
}

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

/* ================================================
   SHAKE ERROR EFFECT
   ================================================ */
.shake {
    animation: shakeError 0.4s ease-in-out;
}

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

/* ================================================
   GLOW PULSE EFFECT
   ================================================ */
.glow-pulse {
    animation: glowPulse 2s infinite;
}

@keyframes glowPulse {
    0%, 100% {
        box-shadow: 0 0 5px var(--accent-primary);
    }
    50% {
        box-shadow: 0 0 25px var(--accent-primary), 0 0 50px var(--accent-primary);
    }
}

/* ================================================
   SLIDE IN ANIMATIONS
   ================================================ */
.slide-in-left {
    animation: slideInLeft 0.5s ease forwards;
}

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

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

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

.slide-in-up {
    animation: slideInUp 0.5s ease forwards;
}

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

/* ================================================
   FADE ANIMATIONS
   ================================================ */
.fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

.fade-in-delay-1 { animation-delay: 0.1s; opacity: 0; }
.fade-in-delay-2 { animation-delay: 0.2s; opacity: 0; }
.fade-in-delay-3 { animation-delay: 0.3s; opacity: 0; }
.fade-in-delay-4 { animation-delay: 0.4s; opacity: 0; }
.fade-in-delay-5 { animation-delay: 0.5s; opacity: 0; }

/* ================================================
   BOUNCE ANIMATIONS
   ================================================ */
.bounce {
    animation: bounce 0.6s ease;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-20px); }
}

/* ================================================
   SPIN ANIMATION
   ================================================ */
.spin {
    animation: spin 1s linear infinite;
}

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

/* ================================================
   FLOATING ANIMATION
   ================================================ */
.float {
    animation: float 3s ease-in-out infinite;
}

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

/* ================================================
   TYPING INDICATOR
   ================================================ */
.typing-indicator {
    display: flex;
    gap: 4px;
}

.typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--accent-secondary);
    border-radius: 50%;
    animation: typingDot 1.4s infinite;
}

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

@keyframes typingDot {
    0%, 100% { transform: translateY(0); opacity: 0.5; }
    50% { transform: translateY(-10px); opacity: 1; }
}

/* ================================================
   CELEBRATION PARTICLES
   ================================================ */
.particle {
    position: absolute;
    pointer-events: none;
    animation: particleFly 1s ease-out forwards;
}

@keyframes particleFly {
    0% {
        transform: translate(0, 0) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(var(--tx), var(--ty)) scale(0);
        opacity: 0;
    }
}

/* ================================================
   SUCCESS CHECKMARK
   ================================================ */
.success-checkmark {
    width: 80px;
    height: 80px;
    border-radius: 50%;
    background: var(--accent-green);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: checkmarkPop 0.4s ease;
}

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

.success-checkmark i {
    font-size: 2.5rem;
    color: white;
}

/* ================================================
   LOADING SKELETON
   ================================================ */
.skeleton {
    background: linear-gradient(90deg, #333 25%, #444 50%, #333 75%);
    background-size: 200% 100%;
    animation: skeleton 1.5s infinite;
}

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