/* ============================================
   DIFFUSION MODELS TUTORIAL - ANIMATIONS
   Diffusion process animations
   ============================================ */

/* Fade In */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Noise Addition (Forward) */
@keyframes noiseAdd {
    from {
        filter: blur(0px);
        opacity: 1;
    }

    to {
        filter: blur(10px);
        opacity: 0.3;
    }
}

/* Noise Removal (Reverse) */
@keyframes noiseRemove {
    from {
        filter: blur(10px);
        opacity: 0.3;
    }

    to {
        filter: blur(0px);
        opacity: 1;
    }
}

/* Glow Forward */
@keyframes glowForward {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(239, 68, 68, 0.3);
    }

    50% {
        box-shadow: 0 0 25px rgba(239, 68, 68, 0.6);
    }
}

/* Glow Reverse */
@keyframes glowReverse {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
    }

    50% {
        box-shadow: 0 0 25px rgba(16, 185, 129, 0.6);
    }
}

/* Pulse */
@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
        opacity: 1;
    }

    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

/* Diffusion Flow (Forward Direction) */
@keyframes diffusionFlowForward {
    from {
        background-position: 0% 50%;
    }

    to {
        background-position: 100% 50%;
    }
}

/* Diffusion Flow (Reverse Direction) */
@keyframes diffusionFlowReverse {
    from {
        background-position: 100% 50%;
    }

    to {
        background-position: 0% 50%;
    }
}

/* Noise particles */
@keyframes noiseParticle {
    0% {
        transform: translate(0, 0);
        opacity: 0;
    }

    50% {
        opacity: 1;
    }

    100% {
        transform: translate(var(--tx, 10px), var(--ty, 10px));
        opacity: 0;
    }
}

/* Schedule Progress */
@keyframes scheduleProgress {
    from {
        width: 0%;
    }

    to {
        width: 100%;
    }
}

/* Bounce */
@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

/* Scale Up */
@keyframes scaleUp {
    from {
        transform: scale(0.8);
        opacity: 0;
    }

    to {
        transform: scale(1);
        opacity: 1;
    }
}

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

    to {
        transform: rotate(360deg);
    }
}

/* Slide In Left */
@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Slide In Right */
@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Shimmer (loading) */
@keyframes shimmer {
    0% {
        background-position: -1000px 0;
    }

    100% {
        background-position: 1000px 0;
    }
}

/* Apply Animations to Elements */
.fade-in {
    animation: fadeIn 0.6s ease-out;
}

.noise-add {
    animation: noiseAdd 2s ease-in-out infinite;
}

.noise-remove {
    animation: noiseRemove 2s ease-in-out infinite;
}

.glow-forward {
    animation: glowForward 1.5s ease-in-out infinite;
}

.glow-reverse {
    animation: glowReverse 1.5s ease-in-out infinite;
}

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

.scale-up {
    animation: scaleUp 0.4s ease-out;
}

.bounce {
    animation: bounce 1s ease-in-out;
}

.rotate {
    animation: rotate 2s linear infinite;
}

.slide-in-left {
    animation: slideInLeft 0.6s ease-out;
}

.slide-in-right {
    animation: slideInRight 0.6s ease-out;
}

.shimmer {
    background: linear-gradient(90deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.2) 50%, rgba(255, 255, 255, 0.05) 100%);
    background-size: 1000px 100%;
    animation: shimmer 2s infinite;
}