@import url('https://fonts.googleapis.com/css2?family=VT323&display=swap');

body {
    font-family: 'VT323', monospace;
    background-color: #000;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    color: #0f0;
    overflow: hidden;
    font-size: 32px;
}

body::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: repeating-linear-gradient(
        0deg,
        rgba(0, 255, 0, 0.03),
        rgba(0, 255, 0, 0.03) 1px,
        transparent 1px,
        transparent 2px
    );
    pointer-events: none;
}

.container {
    background-color: #000;
    padding: 4rem;
    border: 4px solid #0f0;
    box-shadow: 0 0 20px #0f0;
    max-width: 800px;
    width: 100%;
    position: relative;
}

.container::before {
    content: "";
    position: absolute;
    top: -10px;
    left: -10px;
    right: -10px;
    bottom: -10px;
    border: 4px solid #0f0;
    pointer-events: none;
}

h1 {
    font-size: 4rem;
    color: #0f0;
    margin-bottom: 3rem;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 4px;
    text-shadow: 0 0 10px #0f0;
}

.input-group {
    display: flex;
    margin-bottom: 2rem;
}

input, select {
    flex: 1;
    padding: 1rem;
    font-size: 2rem;
    font-family: 'VT323', monospace;
    background-color: #000;
    color: #0f0;
    border: 2px solid #0f0;
    outline: none;
}

input {
    margin-right: 1rem;
}

input:focus, select:focus {
    box-shadow: 0 0 10px #0f0;
}

button {
    width: 100%;
    padding: 1.5rem;
    font-size: 2.4rem;
    font-family: 'VT323', monospace;
    background-color: #000;
    color: #0f0;
    border: 4px solid #0f0;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 4px;
}

button:hover {
    background-color: #0f0;
    color: #000;
    box-shadow: 0 0 20px #0f0;
}

.result {
    margin-top: 2rem;
    padding: 2rem;
    background-color: #000;
    border: 2px solid #0f0;
    text-align: center;
    font-size: 2.4rem;
    color: #0f0;
    text-shadow: 0 0 10px #0f0;
}