:root {
    --bg: #050b14;
    --blueprint-line: rgba(0, 242, 255, 0.1);
    --neon: #00f2ff;
    --text: #c0d1d6;
}

body {
    background-color: var(--bg);
    background-image: linear-gradient(var(--blueprint-line) 1px, transparent 1px), linear-gradient(90deg, var(--blueprint-line) 1px, transparent 1px);
    background-size: 30px 30px;
    color: var(--text);
    font-family: 'Courier New', Courier, monospace;
    margin: 0;
}

nav {
    border-bottom: 2px solid var(--neon);
    padding: 20px;
    display: flex;
    justify-content: space-around;
    background: rgba(5, 11, 20, 0.8);
}

nav a {
    color: var(--neon);
    text-decoration: none;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.panel {
    border: 1px solid var(--neon);
    margin: 40px auto;
    max-width: 900px;
    padding: 30px;
    background: rgba(0, 0, 0, 0.4);
    box-shadow: 0 0 15px rgba(0, 242, 255, 0.2);
}

h1 {
    color: var(--neon);
    text-transform: uppercase;
    border-bottom: 1px solid var(--neon); 
    padding-bottom: 10px; 
}

#map {
    height: 450px; 
    width: 100%; 
    border: 1px solid var(--neon); 
    margin-top: 20px; 
}

input[type="number"] {
    background: transparent;
    border: 1px solid var(--neon);
    color: var(--neon);
    padding: 10px;
    font-family: inherit;
}

.btn {
    background: var(--neon);
    color: var(--bg);
    border: none;
    padding: 10px 20px;
    cursor: pointer;
    font-weight: bold;
}