* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}
 body {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    font-family:"Arial", sans-serif;
    background: linear-gradient(135deg, #f5f7fa, #c3cfe2);
    transition: background-color 0.6s ease;
    }

.clock-container {
    text-align: center;
    }

.clock {
    background: rgba(255, 255, 255, 0.2);
    padding: 30px;
    border-radius: 20px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    max-width: 300px;
    margin: 0 auto;
    }

.time {
    font-size: 3.5rem;
    font-weight: bold;
    color: #535252;
    margin-bottom: 10px;
    transition: color 0.4s;
    
}

.date {
    font-size: 1.2rem;
    color: #555;
    margin-bottom: 20px;
    }

.toggle-btn {
    background:#fff;
    border: none;
    padding: 10px 20px;
    border-radius: 30px;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    transition: all 0.3s ease;
    }

.toggle-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.15);
}

body.night{
    background:linear-gradient(135deg,#232526,#414345) ;
}

body.night .date{
    color: #ffff;
}

body.night .clock{
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid rgba(230, 207, 207, 0.2);
}

body.night .toggle-btn{
    background: #111;
    color: #fff;
}