body {
    background: linear-gradient(135deg, #2e3d23 0%, #4b5d36 100%);
    font-family: 'Arial Black', '돋움', 'monospace', sans-serif;
    color: #e5e5c7;
    margin: 0;
    padding: 0;
}

.container {
    background: rgba(34, 40, 24, 0.97);
    border: 2px solid #6b7b4b;
    border-radius: 12px;
    box-shadow: 0 4px 24px rgba(30, 40, 20, 0.25);
    padding: 32px 24px 24px 24px;
    margin: 32px auto;
    max-width: 800px;
}

h2,
h3,
h4 {
    color: #cddc39;
    font-family: 'Arial Black', '돋움', 'monospace', sans-serif;
    font-weight: bold;
    letter-spacing: 1px;
}

label {
    font-weight: bold;
}

input,
textarea {
    background: #232d1a;
    color: #e5e5c7;
    border: 2px solid #6b7b4b;
    border-radius: 6px;
    font-family: 'Arial Black', '돋움', 'monospace', sans-serif;
    font-size: 1em;
    padding: 8px;
    margin-bottom: 12px;
}

button {
    background: linear-gradient(90deg, #7b8a4d 0%, #bdb76b 100%);
    color: #222;
    font-family: 'Arial Black', '돋움', 'monospace', sans-serif;
    font-weight: bold;
    border: 2px solid #4b5d36;
    border-radius: 8px;
    padding: 12px 0;
    margin-bottom: 8px;
    width: 100%;
    font-size: 1.2em;
    box-shadow: 0 2px 8px rgba(30, 40, 20, 0.15);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

button:hover {
    background: #cddc39;
    color: #222;
}

#result {
    margin-top: 20px;
    padding: 10px;
    background: #e9ecef;
    border-radius: 4px;
    display: none;
}

.unit-panel {
    display: flex;
    gap: 40px;
    margin-bottom: 20px;
}

.unit-panel ul {
    list-style: none;
    padding: 0;
    min-width: 120px;
    border: 2px solid #7b8a4d;
    min-height: 200px;
    background: #38492b;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(30, 40, 20, 0.10);
}

.unit-panel li {
    background: #6b7b4b;
    color: #fffde4;
    margin: 4px;
    padding: 6px;
    border-radius: 4px;
    cursor: grab;
    text-align: center;
    font-weight: bold;
    font-family: 'Arial Black', '돋움', 'monospace', sans-serif;
    border: 1px solid #bdb76b;
    box-shadow: 0 1px 2px rgba(30, 40, 20, 0.10);
}

#map {
    width: 100%;
    height: 400px;
    border: 2px solid #bdb76b;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 2px 12px rgba(30, 40, 20, 0.18);
}

#heatmap-legend {
    font-family: 'Arial Black', '돋움', 'monospace', sans-serif;
    border: 2px solid #bdb76b;
}

#clearAllUnitsBtn {
    background: linear-gradient(90deg, #b71c1c 0%, #bdb76b 100%);
    color: #fffde4;
    font-family: 'Arial Black', '돋움', 'monospace', sans-serif;
    font-weight: bold;
    border: 2px solid #4b5d36;
    border-radius: 8px;
    padding: 12px 0;
    margin-bottom: 8px;
    width: 100%;
    font-size: 1.2em;
    box-shadow: 0 2px 8px rgba(30, 40, 20, 0.15);
    cursor: pointer;
    transition: background 0.2s, color 0.2s;
}

#clearAllUnitsBtn:hover {
    background: #c62828;
    color: #fffde4;
}