body {
    background-color: #000080; /* Dark Blue */
    color: #c0c0c0; /* Silver */
    font-family: 'Courier New', Courier, monospace;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
}

.container {
    width: 640px;
    border: 2px solid #c0c0c0;
    background-color: #000000;
    box-shadow: inset -2px -2px 0px #808080, inset 2px 2px 0px #ffffff;
}

.header {
    background-color: #000080;
    color: #ffffff;
    padding: 2px 5px;
    font-weight: bold;
}

.content {
    padding: 20px;
    text-align: center;
}

h1 {
    color: #ff0000; /* Red */
    font-size: 1.5em;
    animation: blink-text 1s step-start 0s infinite;
}

.progress-bar-container {
    width: 100%;
    height: 20px;
    border: 1px solid #c0c0c0;
    margin: 20px 0;
}

.progress-bar {
    width: 0%;
    height: 100%;
    background-color: #00ff00; /* Green */
    animation: progress 10s linear forwards;
}

.blink {
    animation: blink-text 1s step-start 0s infinite;
}

@keyframes progress {
    from { width: 0%; }
    to { width: 100%; }
}

@keyframes blink-text {
    50% { opacity: 0; }
}

.footer {
    text-align: center;
    padding: 10px;
}