@font-face {
    font-family: 'PrintChar21';
    src: url('fonts/PrintChar21.ttf') format('truetype');
}

body {
    font-family: 'PrintChar21', monospace;
    background-color: #000;
    color: #0f0;
    font-size: 12px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: top;
    margin: 0;
    padding: 20px;
    width: 100vw;
    height: 100vh;
    overflow: hidden;
}

.control-panel {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

button {
    background-color: #333;
    border: none;
    padding: 10px 20px;
    color: white;
    font-family: 'PrintChar21', monospace;
    cursor: pointer;
}

button:hover {
    background-color: #555;
}

.timer-container {
    position: relative;
    width: 90%;
    height: 90%;
    display: grid;
    grid-template-rows: repeat(10, 1fr);
    grid-template-columns: repeat(30, 1fr);
    gap: 5px;
}

.timer {
    color: #0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

.timer.red {
    color: red;
}