/**
 * @file    : css/animations-keyframes.css
 * @purpose : 動畫關鍵幀定義
 * @depends : ['css/variables.css']
 */

/* Bounce Animation (Scroll Indicator) */
@keyframes bounce {

    0%,
    20%,
    50%,
    80%,
    100% {
        transform: translateX(-50%) translateY(0);
    }

    40% {
        transform: translateX(-50%) translateY(10px);
    }
}

/* Pulse Animation (Notification Badge) */
@keyframes pulse {

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

    50% {
        transform: scale(1.1);
    }
}

/* Hint Bounce Animation */
@keyframes hintBounce {

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

    50% {
        transform: translateX(-5px);
    }
}

/* Loading Dots Animation */
@keyframes loadingBounce {

    0%,
    80%,
    100% {
        transform: scale(0.6);
        opacity: 0.5;
    }

    40% {
        transform: scale(1);
        opacity: 1;
    }
}

/* Fade In Up Animation */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

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

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

    to {
        opacity: 1;
    }
}

/* Scale In Animation */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

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

/* Animation Classes */
.animate-fade-in {
    animation: fadeIn 0.5s ease forwards;
}

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

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