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

/* Definindo a nova paleta de cores */
:root {
    --cor-fundo: #f4f4f9; /* Cinza bem claro */
    --cor-container: #ffffff; /* Branco */
    --cor-texto-principal: #333333; /* Cinza escuro */
    --cor-texto-secundario: #555555;
    --cor-destaque: #007BFF; /* Azul vibrante */
    --cor-destaque-hover: #0056b3; /* Azul mais escuro */
}

* {
    box-sizing: border-box;
}

body {
    background-color: var(--cor-fundo);
    font-family: 'Inter', sans-serif;
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    overflow: hidden;
    margin: 0;
    color: var(--cor-texto-principal);
}

.hidden {
    display: none;
}

.menu-container, .quiz-container {
    background-color: var(--cor-container);
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
    padding: 2rem;
    text-align: center;
    width: 600px;
    max-width: 95vw;
}

.menu-container h2, .quiz-container h2 {
    margin-top: 0;
    color: var(--cor-texto-principal);
}

.quiz-selector, #submit, button {
    background-color: var(--cor-destaque);
    color: #ffffff;
    border: none;
    display: block;
    width: 100%;
    cursor: pointer;
    font-size: 1.2rem;
    font-family: inherit;
    padding: 1rem;
    margin-top: 1rem;
    border-radius: 5px;
    transition: background-color 0.2s ease;
}

.quiz-selector:hover, #submit:hover, button:hover {
    background-color: var(--cor-destaque-hover);
}

.header-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
}

#back-to-menu {
    background-color: transparent;
    color: var(--cor-texto-secundario);
    border: 1px solid #ccc;
    padding: 0.4rem 0.8rem;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

#back-to-menu:hover {
    background-color: #e9e9e9;
    color: var(--cor-texto-principal);
}

ul {
    list-style-type: none;
    padding: 0;
    text-align: left;
}

ul li {
    font-size: 1.1rem;
    margin: 1rem 0;
    color: var(--cor-texto-secundario);
}

ul li label {
    cursor: pointer;
}

input[type='radio'] {
    margin-right: 10px;
}

#submit:focus {
    outline: none;
}