body {
    font-family: Arial, sans-serif;
    background-color: #0a0a0a;
    color: #fff;
    padding: 20px;
}
.container {
    max-width: 700px;
    margin: auto;
    background: #111;
    padding: 20px;
    border-radius: 10px;
    box-shadow: 0 0 20px #0ff;
}
input, select, button {
    width: 100%;
    padding: 10px;
    margin: 8px 0;
    border-radius: 6px;
    border: 1px solid #0ff;
    background: #111;
    color: #0ff;
}
input::placeholder { color: #0ff; }
button {
    background-color: #0ff;
    color: #111;
    font-weight: bold;
    cursor: pointer;
    border: none;
}
button:hover { box-shadow: 0 0 10px #0ff; }
.results-section {
    margin-top: 20px;
    background-color: #111;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 0 10px #0ff;
}
.result-item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 6px;
}
.result-item button {
    width: auto;
    padding: 4px 8px;
    margin-left: 5px;
    background-color: #f00;
    color: #fff;
    border: none;
    border-radius: 4px;
    cursor: pointer;
}
.result-item button.editBtn { background-color: #00f; }
.chart-section { margin-top: 30px; }