:root {
    --color-background: #FDF5E3;
    --color-text: #000;
    --color-input-background: #fff;
    --color-button: #00a800;
    --color-button-hover: #008000;
}

[data-theme="dark"] {
    --color-background: #333;
    --color-text: #fff;
    --color-input-background: #444;
    --color-button: #008000;
    --color-button-hover: #00a800;
}

body {
    font-family: Arial, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
}

.container {
    max-width: 600px;
    margin: 0 auto;
    padding: 20px;
}

.title {
    text-align: center;
    margin-bottom: 20px;
    color: var(--color-text);
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 5px;
    color: var(--color-text);
    font-size: 18px;
}

.form-input {
    width: 100%;
    padding: 10px;
    border-radius: 5px;
    border: 1px solid var(--color-text);
    font-size: 16px;
    background-color: var(--color-input-background);
    color: var(--color-text);
}

.solve-button {
    display: block;
    width: 100%;
    padding: 10px;
    border: none;
    border-radius: 5px;
    background-color: var(--color-button);
    color: var(--color-text);
    font-size: 18px;
    cursor: pointer;
}

.solve-button:hover {
    background-color: var(--color-button-hover);
}

.result-text {
    margin-top: 20px;
    font-size: 20px;
    color: var(--color-text);
}