body {
    background-color: #1a1a1a;
    color: #e0e0e0;
   /* font-family: 'Arial', sans-serif; */
    margin: 0;
    padding: 0;
}

header {
    text-align: center;
    padding: 25px;
    background: linear-gradient(135deg, #6a0dad, #000);
}

h1 {
    font-size: 2.5em;
    animation: fadeIn 2s;
}

main {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    padding: 20px;
}

.city {
    background-color: #2e2e2e;
    border-radius: 10px;
    margin: 10px;
    padding: 20px;
    width: 200px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    transition: transform 0.3s;
}

.city:hover {
    transform: scale(1.05);
}

.city img {
    width: 100%;
    border-radius: 10px;
}

.pollution-index {
    font-weight: bold;
    color: #ffcc00;
}

.rr {
	color: #ffcc00;
}
 
.co {
        margin: 80 0 0px;
		text-align: center;
		padding: 25px 15px;
		font-size: 23px;
        font-family: "B nazanin", cursive;
		color: #fff;
		
}

.ob {
	font-size: 28px;


@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}