html {
    background-color: #121212;
}

body {
    font-family: 'Roboto', sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #121212;
}

#game-container {
    display: flex;
    position: relative;
    flex-direction: column;
    align-items: center;
    width: 90vw;
    height: 96vh;
    max-width: 600px;
    max-height: 700px;
    background-color: #b0bec5;
    border-radius: 12px;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
    padding: 20px;
}

#progress-bar {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.progress-step {
    width: 20px;
    height: 20px;
    background-color: #b0bec5;
    border-radius: 50%;
    box-shadow: 0 0 4px rgba(0, 0, 0, 0.3);
}

.progress-step.active {
    background-color: #ffa726; /* Orange for current step */
}

.progress-step.completed {
    background-color: #66bb6a; /* Green for completed steps */
}

#button-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    grid-gap: 10px;
    width: 100%;
    height: auto;
}

#button-grid .button {
    width: 100%;
}

.button {
    background-color: #e0e0e0;
    border: 2px solid #757575;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.3s ease;
}

.button.active {
    background-color: #42a5f5;
}

.button.success {
    background-color: green;
}

.button.error {
    background-color: red;
}

.button::after {
    content: '';
    display: block;
    padding-top: 100%; /* Maintain aspect ratio */
}

.mui-button {
    background-color: #1E88E5;
    border: none;
    color: white;
    padding: 15px 32px;
    text-align: center;
    text-decoration: none;
    display: inline-block;
    font-size: 16px;
    margin: 10px;
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.3s;
}
.mui-button:hover {
    background-color: #1565C0;
}

#start {
    background: #0008;
}

#status {
    font-size: 18px;
    color: #424242;
    margin-top: 20px;
}

.overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 10;
    transition: opacity 0.5s;
}

.hidden {
    opacity: 0;
    pointer-events: none;
}

.overlay #overlay-message{
    font-size: 72px;
    color: #ffffff;
}
.overlay button {
    font-size: 48px;
}