* {
    box-sizing: border-box;
}

html, body {
    margin: 0;
    padding: 0;
    height: 100%;
    width: 100%;
}

body {
    margin: 0;
    padding: 0;
    height: 100vh;
    width: 100vw;
    background-image: url('Stars.jpg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow: hidden; /* Prevent overflow */
}

h2 {
    margin: 20px;
}

.container {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%; /* Ensure the container takes the full height */
    width: 100%; /* Ensure the container takes the full width */
}

.overlay {
    position: relative;
    border: 2px solid transparent;
    border-radius: 8px;
    width: 320px;
    height: 530px;
    background-color: rgba(103, 103, 103, 0.6);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    color: white;
    font-family: Arial, sans-serif;
}

.message-box {
    margin-bottom: 300px;
    width: 200px;
}

.keypad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    grid-gap: 10px;
}

.key {
    position: relative;
    padding-top: 10px;
    padding-bottom: 10px;
    font-size: 1.3rem;
    background-color: rgba(255, 255, 255, 0);
    color: #bcbcbd;
    border: none;
    cursor: pointer;
    overflow: hidden;
}

.key::after {
    content: '';
    position: absolute;
    background-color: rgba(33, 2, 69, 0.3);
    width: 100px;
    height: 100px;
    border-radius: 50%;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0);
    transition: transform 0.4s ease, width 0.6s ease, height 0.4s ease, opacity 0.4s ease;
    pointer-events: none;
}

.key:active::after {
    transform: translate(-50%, -50%) scale(1);
    width: 300px;
    height: 300px;
    opacity: 0;
}

.key.enter {
    color: white;
    padding: 12px;
    width: 260px;
    border: none;
    border-radius: 8px;
    background-color: #1d013b;
}

.submit {
    margin-top: 5px;
    margin-left: 10px;
}

#userGuessInput {
    height: 100px;
    width: 230px;
    font-size: 2rem;
    color: white;
    text-align: center;
    background-color: rgba(255, 255, 255, 0.05);
    border: 2px solid rgba(255, 255, 255, 0);
    border-radius: 8px;
}

.key:hover {
    color: white;
}

.white {
    color: rgba(255, 255, 255, 0.858);
}

.message-box {
    position: fixed;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    background-color: rgba(0, 0, 0, 0.8);
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    display: none;
}

.message-box.show {
    display: block;
}

@media (max-width:480px) {
    .overlay{
        margin-top: -50px;
    }
}