/* Paleta de cores acessível */
:root {
    --primary-color: #01004D;
    /* Azul escuro (Referência) */
    --secondary-color: #388E3C;
    /* Verde acessível */
    --accent-color: #FC903F;
    /* Laranja (Referência) */
    --dark-color: #212121;
    /* Cinza escuro */
    --light-color: #FAFAFA;
    /* Cinza claro */
    --white: #FFFFFF;
    --border-color: #BDBDBD;
}

/* Global Styles */
body {
    background-color: var(--white);
    color: var(--dark-color);
    font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--primary-color) !important;
    font-weight: 700;
}



/* Main Content */
main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1rem;
    min-height: 60vh;
}

/* Introdução */
.intro {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background-color: var(--white);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.intro h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.intro p {
    font-size: 1.125rem;
    line-height: 1.8;
    color: var(--dark-color);
    max-width: 100%;
}

/* Seleção de Categoria */
.quiz-selection {
    text-align: center;
}

.quiz-selection h2 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 2rem;
    font-weight: 700;
}

.categories {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.category-card {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.category-card:hover,
.category-card:focus {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
    outline: 3px solid var(--primary-color);
}

.category-icon {
    margin: 0 auto 1.5rem;
}

.category-card h3 {
    font-size: 1.75rem;
    color: var(--dark-color);
    margin-bottom: 1rem;
    font-weight: 700;
}

.category-card p {
    font-size: 1rem;
    color: #616161;
    line-height: 1.6;
}

/* Quiz Container */
.quiz-container {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

#perguntas-container {
    margin-bottom: 2rem;
}

fieldset {
    background-color: var(--white);
    padding: 2rem;
    margin-bottom: 2rem;
    border: 2px solid var(--primary-color);
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

legend {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark-color);
    padding: 0.5rem 1rem;
    background-color: var(--primary-color);
    color: var(--white);
    border-radius: 8px;
}

.opcao {
    padding: 1rem;
    margin: 0.75rem 0;
    border: 2px solid var(--light-color);
    border-radius: 8px;
    transition: all 0.3s ease;
    cursor: pointer;
    user-select: none;
    display: flex;
    align-items: center;
}

.opcao:hover {
    background-color: #E3F2FD;
    border-color: var(--primary-color);
}

.opcao input[type="radio"] {
    margin-right: 0.75rem;
    width: 20px;
    height: 20px;
    cursor: pointer;
}

.opcao label {
    font-size: 1.125rem;
    cursor: pointer;
    display: inline;
    flex: 1;
}

.opcao.selecionada {
    background-color: #E3F2FD;
    border: 2px solid var(--primary-color);
    transform: scale(1.02);
}

/* Botões */
.form-actions,
.resultado-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 2rem;
}

.btn-primary,
.btn-secondary {
    padding: 1rem 2rem;
    font-size: 1.125rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--secondary-color);
    transform: scale(1.05);
}

.btn-secondary {
    background-color: #757575;
    color: var(--white);
}

.btn-secondary:hover,
.btn-secondary:focus {
    background-color: #616161;
    transform: scale(1.05);
}

/* Resultado */
.resultado-container {
    animation: fadeIn 0.5s ease;
}

.resultado-header {
    background-color: var(--white);
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    margin-bottom: 2rem;
    text-align: center;
}

.resultado-header h2 {
    font-size: 2rem;
    color: var(--dark-color);
    margin-bottom: 1.5rem;
    font-weight: 700;
}

.pontuacao {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.pontuacao-item {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.pontuacao-item .label {
    font-size: 1rem;
    color: #616161;
    margin-bottom: 0.5rem;
}

.pontuacao-item .valor {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.porcentagem-badge {
    padding: 1rem 2rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--white);
    border-radius: 50px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
}

#detalhes-container {
    margin-bottom: 2rem;
}

.pergunta {
    background-color: var(--white);
    padding: 1.5rem;
    margin-bottom: 1rem;
    border-radius: 8px;
    border-left: 5px solid var(--primary-color);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.pergunta.acerto {
    border-left-color: var(--success-color);
    background-color: #E8F5E9;
}

.pergunta.erro {
    border-left-color: var(--error-color);
    background-color: #FFEBEE;
}

.pergunta p {
    font-size: 1rem;
    line-height: 1.6;
    margin-bottom: 0.5rem;
}

.pergunta strong {
    color: var(--dark-color);
}

/* Footer */
footer {
    padding: 2rem 1rem;
    margin-top: 4rem;
}

.footer-content {
    max-width: 1200px;
    margin: 0 auto;
    text-align: center;
}

.footer-content p {
    margin-bottom: 1rem;
    line-height: 1.8;
    max-width: 100%;
}

.footer-accessibility {
    font-size: 0.9rem;
    color: #6c757d;
}

.footer-accessibility strong {
    color: var(--dark-color);
}

/* Responsividade */
@media (max-width: 768px) {
    .logo-container h1 {
        font-size: 1.5rem;
    }

    .categories {
        grid-template-columns: 1fr;
    }

    fieldset {
        padding: 1.5rem;
    }

    legend {
        font-size: 1.125rem;
    }

    .opcao label {
        font-size: 1rem;
    }

    .form-actions,
    .resultado-actions {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
    }

    .pontuacao {
        flex-direction: column;
        gap: 1rem;
    }
}

/* Melhorias de acessibilidade */
@media (prefers-contrast: high) {
    :root {
        --primary-color: #0D47A1;
        --secondary-color: #1B5E20;
        --accent-color: #E65100;
    }
}