body{
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0;
            background: linear-gradient(135deg, #d4e7f5,#bbdefb);
        }

        .main{
            text-align: center;
            width: 500px;
            height: 500px;
            padding: 30px;
            border-radius: 300px;
            background-color: rgb(230, 250, 250);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            animation: fadeIn 1s ease forwards;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .timer{
            /* width: 250px; */
            /* text-align: center; */
            font-size: 60px;
            color: #166bc1;
            margin-bottom: 20px;
            animation: pulse 1.2s infinite;
        }

        .buttons{
            display: flex;
            justify-content: center;
            gap: 20px;
        }

        button{
            width: 120px;
            height: 40px;
            font-size: 16px;
            border: none;
            border-radius: 8px;
            background-color: #e3f2fd;
            color: #166bc1;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(22, 107, 193, 0.3);
        }

        button:hover {
            background-color: #166bc1;
            color: white;
            transform: translateY(-3px) scale(1.05);
        }
        button:active {
            transform: scale(0.95);
        }

        .hidden{
            display: none;
        }

        @keyframes fadeIn {
            0% { opacity: 0; transform: scale(0.9); }
            100% { opacity: 1; transform: scale(1); }
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.02); }
            100% { transform: scale(1); }
        }
        
                body{
            height: 100vh;
            display: flex;
            justify-content: center;
            align-items: center;
            margin: 0;
            background: linear-gradient(135deg, #d4e7f5,#bbdefb);
        }

        .main{
            text-align: center;
            width: 500px;
            height: 500px;
            padding: 30px;
            border-radius: 300px;
            background-color: rgb(230, 250, 250);
            box-shadow: 0 10px 30px rgba(0,0,0,0.1);
            animation: fadeIn 1s ease forwards;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
        }

        .timer{
            /* width: 250px; */
            /* text-align: center; */
            font-size: 60px;
            color: #166bc1;
            margin-bottom: 20px;
            animation: pulse 1.2s infinite;
        }

        .buttons{
            display: flex;
            justify-content: center;
            gap: 20px;
        }

        button{
            width: 120px;
            height: 40px;
            font-size: 16px;
            border: none;
            border-radius: 8px;
            background-color: #e3f2fd;
            color: #166bc1;
            cursor: pointer;
            transition: all 0.3s ease;
            box-shadow: 0 4px 12px rgba(22, 107, 193, 0.3);
        }

        button:hover {
            background-color: #166bc1;
            color: white;
            transform: translateY(-3px) scale(1.05);
        }
        button:active {
            transform: scale(0.95);
        }

        .hidden{
            display: none;
        }

        @keyframes fadeIn {
            0% { opacity: 0; transform: scale(0.9); }
            100% { opacity: 1; transform: scale(1); }
        }

        @keyframes pulse {
            0% { transform: scale(1); }
            50% { transform: scale(1.02); }
            100% { transform: scale(1); }
        }
                    

        @media (max-width: 600px) {
            .main {
                width: 90vw;    
                height: 90vw;    
                border-radius: 95vw;
                padding: 20px; 
                margin: 5px;  
            }

            .timer {
                font-size: 40px;  
                margin-bottom: 15px;
            }

            button {
                width: 90px;      
                height: 36px;
                font-size: 14px;
            }

            .buttons {
                gap: 10px;        
                flex-wrap: wrap;  
            }
        }