:root{
    --cor-fundo: #160d17;
    --cor-principal: #511f5c;
    --cor-secundaria: #4d286f;
    --cor-destaque: #a94ff7;
    --cor-texto: #e6edf3;
    --cor-botao-hover: #7d41d8;
}

body{
    background: linear-gradient(135deg, var(--cor-fundo), #141b29);
    color: var(--cor-texto);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    margin: 0;
}

.caixa-principal{
    background: var(--cor-principal);
    width: 90%;
    max-width: 600px;
    text-align: center;
    padding: 30px 20px;
    border-radius: 20px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.5);
    animation: aparecer 0.8s ease-in-out;
}

h1{
    color: var(--cor-destaque);
    margin-bottom: 20px;
    font-size: 2rem;
    letter-spacing: 1px;
}

.caixa-perguntas{
    font-size: 1.2rem;
    margin-bottom: 20px;
    font-weight: 500;
}

.caixa-alternativas{
    display: flex;
    flex-direction: column;
    gap: 12px;
}

button{
    background: var(--cor-secundaria);
    color: var(--cor-texto);
    border: none;
    border-radius: 12px;
    padding: 14px;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
}

button:hover{
    background-color: var(--cor-botao-hover);
    color: #0d1b2a;
    transform: translateY(-2px);
    box-shadow: 0 6px 14px rgba(0,0,0,0.4);
}

.caixa-resultado{
    margin-top: 20px;
    font-size: 1.1rem;
    background: rgba(255,255,255,0.08);
    padding: 15px;
    border-radius: 12px;
    display: none; /* só aparece no final do quiz */
}

.texto-resultado{
    color: var(--cor-destaque);
    font-weight: bold;
}

/* animação suave na entrada */
@keyframes aparecer {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}