.sun-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    overflow: hidden;
    z-index: -1;
    background: #f5f5f5;
}

.sun {
    position: absolute;
    opacity: 0.85;
    z-index: 1;
}

.star {
    position: absolute;
    z-index: 0;
}

@keyframes floatSun {
    0% { transform: translate(0, 0) scale(1); opacity: 0.9; }
    50% { transform: translate(-15vw, -30vh) scale(1.4); opacity: 0.7; }
    100% { transform: translate(15vw, -60vh) scale(1); opacity: 0; }
}

@keyframes floatStar {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(-5vw, -50vh) scale(0.7); }
}

@keyframes colorChange {
    0% { color: #ffeb3b; }
    33% { color: #ff9800; }
    66% { color: #ff5722; }
    100% { color: #ffca28; }
}