@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Roboto:ital,wght@0,100..900;1,100..900&display=swap');

* {
    margin: 0;
    padding: 0;
    font-family: Poppins, serif;
    box-sizing: border-box;
}

.container {
    width: 100%;
    height: 100vh;
    background: #3c5077;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn {
    padding: 10px 40px;
    background: #fff;
    border: 0;
    outline: none;
    cursor: pointer;
    font-size: 22px;
    font-weight: 500;
    border-radius: 5px;
    transition: 0.3s ease-in-out;
}

.btn:hover {
    background: #1f3056;
    color: #fff;
}

.popup {
    position: absolute;
    background: #fff;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    padding: 30px;
    width: 400px;
    text-align: center;
    visibility: hidden;  
    opacity: 0;
    transition: all 0.5s ease-in-out;
    border-radius: 10px;
}

.popup img {
    width: 60px;
    height: 60px;
    margin-bottom: 20px;
}

.popup h2 {
    font-size: 25px;
    font-weight: 500; 
    margin-bottom: 20px;
}

.popup p {
    font-size: 18px;
    color: #777;
}

.popup button {
    margin-top: 20px;
    padding: 10px 40px;
    background: #3c5077;
    border: 0;
    color: #fff;
    font-size: 18px;
    cursor: pointer;
    border-radius: 5px;
}

.popup button:hover {
    background: #1f3056;
}

.open-popup {
    visibility: visible; 
    opacity: 1;
    top: 50%;
    transform: translate(-50%, -50%);
}