/* Cloud effects and animations */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(ellipse 200px 100px at 20% 30%, rgba(255,255,255,0.9) 0%, transparent 60%),
        radial-gradient(ellipse 150px 80px at 80% 20%, rgba(255,255,255,0.8) 0%, transparent 60%),
        radial-gradient(ellipse 300px 150px at 60% 40%, rgba(255,255,255,0.7) 0%, transparent 60%),
        radial-gradient(ellipse 180px 90px at 30% 60%, rgba(255,255,255,0.85) 0%, transparent 60%),
        radial-gradient(ellipse 250px 120px at 90% 70%, rgba(255,255,255,0.75) 0%, transparent 60%),
        radial-gradient(ellipse 220px 110px at 15% 80%, rgba(255,255,255,0.8) 0%, transparent 60%),
        radial-gradient(ellipse 180px 90px at 75% 85%, rgba(255,255,255,0.7) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
    animation: driftClouds 60s ease-in-out infinite;
    transition: background 2s ease-in-out;
}

body.night::before {
    background: 
        radial-gradient(ellipse 200px 100px at 20% 30%, rgba(100,100,120,0.4) 0%, transparent 60%),
        radial-gradient(ellipse 150px 80px at 80% 20%, rgba(100,100,120,0.3) 0%, transparent 60%),
        radial-gradient(ellipse 300px 150px at 60% 40%, rgba(100,100,120,0.35) 0%, transparent 60%),
        radial-gradient(ellipse 180px 90px at 30% 60%, rgba(100,100,120,0.4) 0%, transparent 60%),
        radial-gradient(ellipse 250px 120px at 90% 70%, rgba(100,100,120,0.3) 0%, transparent 60%),
        radial-gradient(ellipse 220px 110px at 15% 80%, rgba(100,100,120,0.35) 0%, transparent 60%),
        radial-gradient(ellipse 180px 90px at 75% 85%, rgba(100,100,120,0.3) 0%, transparent 60%);
}

body.night .clouds-layer::after {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 60px;
    height: 60px;
    background: radial-gradient(circle, #f4f1de 0%, #e9c46a 30%, transparent 70%);
    border-radius: 50%;
    box-shadow: 0 0 30px rgba(244, 241, 222, 0.6);
}

@keyframes driftClouds {
    0% { transform: translateX(0) translateY(0); }
    25% { transform: translateX(15px) translateY(-5px); }
    50% { transform: translateX(30px) translateY(0); }
    75% { transform: translateX(20px) translateY(5px); }
    100% { transform: translateX(0) translateY(0); }
}

.clouds-layer {
    position: fixed;
    top: 0;
    left: 0;
    width: 200%;
    height: 60%;
    background: 
        radial-gradient(ellipse 120px 60px at 10% 20%, rgba(255,255,255,0.6) 0%, transparent 70%),
        radial-gradient(ellipse 80px 40px at 25% 35%, rgba(255,255,255,0.5) 0%, transparent 70%),
        radial-gradient(ellipse 160px 80px at 45% 15%, rgba(255,255,255,0.7) 0%, transparent 70%),
        radial-gradient(ellipse 100px 50px at 65% 40%, rgba(255,255,255,0.6) 0%, transparent 70%),
        radial-gradient(ellipse 140px 70px at 80% 25%, rgba(255,255,255,0.65) 0%, transparent 70%),
        radial-gradient(ellipse 90px 45px at 95% 45%, rgba(255,255,255,0.55) 0%, transparent 70%);
    pointer-events: none;
    z-index: -2;
    animation: slowCloudDrift 120s linear infinite;
    transition: background 2s ease-in-out;
}

body.night .clouds-layer {
    background: 
        radial-gradient(ellipse 120px 60px at 10% 20%, rgba(70,70,90,0.3) 0%, transparent 70%),
        radial-gradient(ellipse 80px 40px at 25% 35%, rgba(70,70,90,0.25) 0%, transparent 70%),
        radial-gradient(ellipse 160px 80px at 45% 15%, rgba(70,70,90,0.35) 0%, transparent 70%),
        radial-gradient(ellipse 100px 50px at 65% 40%, rgba(70,70,90,0.3) 0%, transparent 70%),
        radial-gradient(ellipse 140px 70px at 80% 25%, rgba(70,70,90,0.32) 0%, transparent 70%),
        radial-gradient(ellipse 90px 45px at 95% 45%, rgba(70,70,90,0.28) 0%, transparent 70%);
}

@keyframes slowCloudDrift {
    0% { transform: translateX(-20%); }
    100% { transform: translateX(-70%); }
}