:root {
    --cor-fundo-primary: #eef5f9; /* Light Blueish Gray */
    --cor-fundo-secondary: #eef5f9; 
    --cor-fundo-tertiary: #ffffff;
    
    --cor-card: #ffffff;
    --cor-texto-principal: #333333;
    --cor-texto-secundario: #666666;
    
    --cor-destaque: #0d47a1; /* Strong Blue */
    --cor-acerto: #4caf50; 
    --cor-acerto-hover: #388e3c;
    --cor-erro: #f44336; 
    --cor-erro-hover: #d32f2f;
    --cor-virar: #2196f3; 
    --cor-virar-hover: #1976d2;
    
    --sombra-suave: 0 5px 20px rgba(0, 0, 0, 0.05);
    --sombra-card: 0 10px 30px rgba(0, 0, 0, 0.1);
    --borda-raio: 20px;
}

.quiz-theme-wrapper {
    font-family: 'Segoe UI', 'Roboto', 'Helvetica Neue', sans-serif;
    background-color: transparent; /* Changed to transparent to match white page background */
    color: var(--cor-texto-principal);
    min-height: 100vh;
    margin: -20px -15px; 
    padding: 40px 15px;
    border-radius: 0;
}

body {
    /* Resetting generic adjustments */
}

/* Background Animation Removed for Light Theme */
@keyframes oceanFlow {
    0% { background-position: 0% 50%; }
    100% { background-position: 0% 50%; }
}

.quiz-theme-wrapper .container {
    max-width: 800px;
    margin-top: 40px;
    position: relative;
    z-index: 1;
}

/* Title Styling */
.quiz-theme-wrapper .app-title {
    color: var(--cor-destaque); /* Dark blue for title on light bg */
    font-weight: 800;
    text-shadow: none;
    margin-bottom: 1.5rem;
    letter-spacing: -0.5px;
}

/* Progress Text */
.quiz-theme-wrapper .progresso {
    color: var(--cor-destaque);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 20px;
    background: rgba(13, 71, 161, 0.1); /* Light blue bg for badge */
    display: inline-block;
    padding: 8px 16px;
    border-radius: 50px;
    backdrop-filter: blur(0px);
}

/* Flashcard Container */
.quiz-theme-wrapper .flashcard {
    background-color: var(--cor-card);
    color: var(--cor-texto-principal);
    border-radius: var(--borda-raio);
    padding: 40px;
    box-shadow: var(--sombra-card);
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease;
    border: 1px solid rgba(0,0,0,0.05);
}

/* Decorative element inside card - adjusted for light theme */
.quiz-theme-wrapper .flashcard::before {
    content: '';
    position: absolute;
    top: -50px;
    right: -50px;
    width: 150px;
    height: 150px;
    background: radial-gradient(circle, rgba(13, 71, 161, 0.05) 0%, rgba(0,0,0,0) 70%);
    border-radius: 50%;
    z-index: 0;
}

.quiz-theme-wrapper .card-conteudo {
    position: relative;
    z-index: 1;
    width: 100%;
}

.quiz-theme-wrapper .card-conteudo.pergunta {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--cor-texto-principal);
    line-height: 1.4;
    margin-bottom: 20px;
}

.card-conteudo.resposta {
    font-size: 1.3rem;
    margin-top: 15px;
    padding: 20px;
    background-color: #f0f7f9;
    border-radius: 12px;
    border-left: 5px solid var(--cor-destaque);
}

.card-conteudo.curiosidade {
    margin-top: 25px;
    font-size: 1rem;
    color: var(--cor-texto-secundario);
    background: #fff;
}

.imagem-curiosidade {
    max-width: 100%;
    max-height: 250px;
    border-radius: 12px;
    margin-bottom: 15px;
    box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

/* Buttons Container */
.botoes-container {
    margin-top: 30px;
    display: flex;
    justify-content: center;
    gap: 15px;
    flex-wrap: wrap;
}

/* Base Button Style */
.quiz-theme-wrapper .btn {
    padding: 12px 30px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.25, 0.8, 0.25, 1);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.quiz-theme-wrapper .btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(0,0,0,0.3);
}

.quiz-theme-wrapper .btn:active {
    transform: translateY(1px);
}

/* Specific Button Colors */
.quiz-theme-wrapper .btn-virar {
    background-color: var(--cor-virar);
    color: white;
}
.quiz-theme-wrapper .btn-virar:hover { background-color: var(--cor-virar-hover); color: white; }

.quiz-theme-wrapper .btn-acertei {
    background-color: var(--cor-acerto);
    color: #fff;
}
.quiz-theme-wrapper .btn-acertei:hover { background-color: var(--cor-acerto-hover); color: #fff;}

.quiz-theme-wrapper .btn-errei {
    background-color: var(--cor-erro);
    color: white;
}
.quiz-theme-wrapper .btn-errei:hover { background-color: var(--cor-erro-hover); color: white;}

.quiz-theme-wrapper .btn-reiniciar {
    background-color: var(--cor-destaque);
    color: white;
}
.quiz-theme-wrapper .btn-reiniciar:hover { background-color: #00acc1; color: white;}

/* Final Result Screen */
.quiz-theme-wrapper .resultado-final {
    background: rgba(255, 255, 255, 0.95);
    padding: 40px;
    border-radius: var(--borda-raio);
    box-shadow: var(--sombra-card);
    text-align: center;
}

.quiz-theme-wrapper .resultado-final h2 {
    color: var(--cor-texto-principal);
    margin-bottom: 20px;
}

.quiz-theme-wrapper .acertos { font-weight: bold; color: var(--cor-acerto-hover); font-size: 1.4rem; }
.quiz-theme-wrapper .erros { font-weight: bold; color: var(--cor-erro-hover); font-size: 1.4rem; }

/* Content Section (Learn More) */
.quiz-theme-wrapper section.mt-5.mb-5.border-top.pt-4 {
    background: rgba(255,255,255, 0.9);
    padding: 30px;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    border-top: none !important; /* Override inline style or bootstrap */
}

.quiz-theme-wrapper section h2, .quiz-theme-wrapper section h3 {
    color: #0d47a1; /* Keep deep blue for headers on white */
}

/* Accordion Customization */
.quiz-theme-wrapper .accordion-button {
    background-color: rgba(255,255,255,0.8);
    color: #0d47a1;
    font-weight: 600;
}
.quiz-theme-wrapper .accordion-button:not(.collapsed) {
    background-color: #e3f2fd;
    color: #0d47a1;
}

/* Modal Enhancements */
#aiModal .modal-content {
    border-radius: 20px;
    overflow: hidden;
    border: none;
}
#aiModal .modal-header {
    background: linear-gradient(90deg, #0d47a1, #1976d2);
}
#aiModal .modal-title {
    font-weight: 700;
}

/* Responsive tweaks */
@media (max-width: 600px) {
    .quiz-theme-wrapper .flashcard {
        padding: 25px;
        min-height: 250px;
    }
    .quiz-theme-wrapper .card-conteudo.pergunta {
        font-size: 1.3rem;
    }
    .quiz-theme-wrapper .btn {
        width: 100%;
        margin-bottom: 10px;
    }
    .quiz-theme-wrapper .botoes-container {
        flex-direction: column;
    }
}

/* AI Loading State */
#ai-loading {
    background: rgba(0, 0, 0, 0.02);
    backdrop-filter: blur(0px);
    padding: 30px;
    border-radius: 20px;
    color: var(--cor-texto-principal);
    margin-top: 30px;
    box-shadow: none;
    border: 1px dashed rgba(0,0,0,0.1);
}
#ai-loading h4 {
    color: var(--cor-destaque) !important; 
}
#ai-loading .text-muted {
    color: var(--cor-texto-secundario) !important;
}
#ai-loading .spinner-border {
    width: 3rem;
    height: 3rem;
    color: var(--cor-destaque) !important;
}

/* Override Bootstrap Buttons for Consistency */
.quiz-theme-wrapper .btn-primary {
    background-color: var(--cor-principal, #0d47a1);
    border: none;
}
.quiz-theme-wrapper .btn-success {
    background-color: var(--cor-acerto);
    border: none;
}
.quiz-theme-wrapper .btn-danger {
    background-color: var(--cor-erro);
    border: none;
}
.quiz-theme-wrapper .btn-info {
    background-color: var(--cor-destaque);
    border: none;
    color: white;
}
.quiz-theme-wrapper .btn-info:hover {
    color: white;
    background-color: #00acc1;
}