@import url('https://fonts.googleapis.com/css2?family=Ubuntu:wght@400;700&display=swap');

:root {
    --color-background: #f4f4f9;
    --color-text: #333;
    --color-primary: #6200ea;
    --color-primary-hover: #3700b3;
    --color-white: #fff;
    --color-border: #ddd;
    --color-hover-bg: #f1f1f1;
    --color-item-bg: #f9f9f9;
    --color-disabled-light: #f9f9f9;
    --color-disabled-dark: #111;
    --color-disabled-text-light: #666;
    --color-disabled-text-dark: #bbb;
    --font-family: 'Ubuntu', Arial, sans-serif;
    --font-size-base: 1.5rem;
    --font-size-large: 2rem;
}

* {
    font-family: var(--font-family);
}

body {
    font-size: var(--font-size-base);
    margin: 0;
    padding: 0;
    background-color: var(--color-background);
    color: var(--color-text);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.hidden {
    display: none;
}

header {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
    padding: 2%;
    margin-bottom: 30px;
}

h1 {
    margin: 0;
    font-size: var(--font-size-large);
}

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
}

footer {
    background-color: var(--color-primary);
    color: var(--color-white);
    text-align: center;
    padding: 2%;
    margin-top: auto;
    width: 100%;
}

input, textarea {
    padding: 0.5rem;
    border: 2px solid var(--color-border);
    border-radius: 5px;
    outline: none;
    font-family: var(--font-family);
    transition: border-color 0.3s ease;
    background-color: var(--color-disabled-light);
    color: var(--color-disabled-text-light);
}

input:focus, textarea:focus {
    border-color: var(--color-primary-hover);
    background-color: var(--color-disabled-light);
    color: var(--color-disabled-text-light);
}

body.dark-mode input:focus, body.dark-mode textarea:focus {
    background-color: var(--color-disabled-dark);
    color: var(--color-disabled-text-dark);
}

body.dark-mode input, body.dark-mode textarea {
    background-color: var(--color-disabled-dark);
    color: var(--color-disabled-text-dark);
}

.darkmode-toggle {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-family);
    font-size: 1.5rem;
    justify-content: center;
    margin: 20px auto;
}


.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 25px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: 0.4s;
    border-radius: 25px;
}

.slider:before {
    position: absolute;
    content: "";
    height: 19px;
    width: 19px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: 0.4s;
    border-radius: 50%;
}

input:checked + .slider {
    background-color: var(--color-primary);
}

input:checked + .slider:before {
    transform: translateX(25px);
}

button {
    background-color: var(--color-primary);
    color: var(--color-white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 5px;
    margin: 0 1em;
    cursor: pointer;
    transition: transform 0.3s ease;
    font-size: 1.5rem;
}

button:hover {
    transform: scale(1.1);
}

body.dark-mode .question-item input {
    background-color: var(--color-disabled-dark);
    color: var(--color-disabled-text-dark);
}