:root {
    --black-button: #000;
    --black-button-light: #555;
    --text-color-white: #fff;
    --primary-color: #5A7FFD;
    --primary-color-light: #7fb0e8;
    --secondary-color: #4A90E2;
    --background-light: #E5EEFF;
    --background-light-alt: #f9f9f9;
    --text-color-dark: #333;
    --text-color-muted: #6C757D;
    --error-color: red;
    --font-family: Arial, sans-serif;
    --font-size-small: 14px;
    --font-size-medium: 16px;
    --font-size-large: 20px;
    --font-size-xlarge: 24px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-family);
    background-color: var(--background-light-alt);
    color: var(--text-color-dark);
    margin: 0;
    padding: 0;
}

h1 {
    font-size: 24px;
    color: #333;
    margin-top: 20px;
}

button {
    background-color: var(--primary-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    padding: 10px 20px;
    font-size: var(--font-size-medium);
    cursor: pointer;
    transition: background-color 0.2s ease;
}

button:hover {
    background-color: var(--primary-color-light);
}

.hidden {
    display: none !important;
}
