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

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

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

.slide-in {
    animation: slideIn 0.6s ease;
}

/* Slide Down */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.btn-bounce:hover {
    animation: bounce 0.6s ease;
}

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

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

/* Checkmark Animation */
@keyframes checkmark {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    50% {
        transform: scale(1.2);
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.checkmark {
    animation: checkmark 0.5s ease;
    color: var(--success-green);
    font-size: 3rem;
}

/* Highlight Rank */
@keyframes highlightRank {
    0% {
        background-color: rgba(127, 255, 0, 0.3);
        transform: scale(1);
    }
    50% {
        background-color: rgba(127, 255, 0, 0.6);
        transform: scale(1.05);
    }
    100% {
        background-color: rgba(255, 255, 255, 0.03);
        transform: scale(1);
    }
}

/* Shake */
@keyframes shake {
    0%, 100% {
        transform: translateX(0);
    }
    25% {
        transform: translateX(-10px);
    }
    75% {
        transform: translateX(10px);
    }
}

.shake {
    animation: shake 0.5s ease;
}

/* Confetti */
@keyframes confetti {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }
    100% {
        transform: translateY(-500px) rotate(720deg);
        opacity: 0;
    }
}

.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    background: var(--accent-green);
    animation: confetti 3s ease-out forwards;
    pointer-events: none;
}

/* Particle Background */
.particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    overflow: hidden;
    z-index: 1;
}

.particle {
    position: absolute;
    width: 4px;
    height: 4px;
    background: var(--primary-teal);
    border-radius: 50%;
    opacity: 0.6;
    animation: float 20s infinite ease-in-out;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    25% {
        transform: translateY(-100px) translateX(50px);
    }
    50% {
        transform: translateY(-200px) translateX(-50px);
    }
    75% {
        transform: translateY(-100px) translateX(100px);
    }
}

/* Success Flash */
@keyframes successFlash {
    0% {
        background-color: transparent;
    }
    50% {
        background-color: rgba(0, 255, 136, 0.3);
    }
    100% {
        background-color: transparent;
    }
}

.success-flash {
    animation: successFlash 0.5s ease;
}

/* Loading Spinner */
@keyframes spin {
    0% {
        transform: rotate(0deg);
    }
    100% {
        transform: rotate(360deg);
    }
}

.spinner {
    border: 3px solid rgba(0, 206, 209, 0.3);
    border-top: 3px solid var(--primary-teal);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

.spinner.spinner-sm {
    width: 24px;
    height: 24px;
    border-width: 2px;
    margin: 10px auto;
}

/* Fade Out */
@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}