body {
    font-family: Arial, sans-serif;
    background-color: #f4f7f8;
    padding: 20px;
}

.container {
    max-width: 600px;
    background: #ffffff;
    padding: 25px;
    margin: auto;
    border-radius: 10px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1 {
    text-align: center;
    color: #2c7be5;
}

label {
    display: block;
    margin-top: 12px;
    font-weight: bold;
}

input, select {
    width: 100%;
    padding: 8px;
    margin-top: 6px;
    border-radius: 4px;
    border: 1px solid #ccc;
}

button {
    width: 100%;
    margin-top: 20px;
    padding: 12px;
    background-color: #2c7be5;
    color: #ffffff;
    border: none;
    font-size: 16px;
    border-radius: 6px;
    cursor: pointer;
}

button:hover {
    background-color: #1a5dc9;
}

.result {
    margin-top: 25px;
    background-color: #eef5ff;
    padding: 15px;
    border-radius: 8px;
}

.result p {
    margin: 6px 0;
}

.inline-note {
    font-size: 13px;
    color: #555;
    margin-left: 10px;
}

/* Tooltip */
.tooltip {
    cursor: pointer;
    color: #2c7be5;
    font-weight: bold;
    margin-left: 6px;
}

.tooltip:hover::after {
    content: attr(data-tip);
    position: absolute;
    background: #333;
    color: #fff;
    padding: 6px 8px;
    font-size: 12px;
    border-radius: 4px;
    margin-left: 5px;
    white-space: nowrap;
    z-index: 10;
}

/* Explanation box */
.explanation-box {
    margin-top: 20px;
    padding: 15px;
    background-color: #fff3cd;
    border-left: 5px solid #ffc107;
    border-radius: 6px;
}

.explanation-box h3 {
    margin-top: 0;
}