.quiz-btn {
    display: block;
    width: 100%;
    max-width: 400px;
    margin: 18px auto;
    padding: 0.9rem 1.5rem;
    font-size: 1.1rem;
    font-weight: 600;
    border: none;
    border-radius: 10px;
    color: #fff;
    background: linear-gradient(180deg, #b39ddb 0%, #9b59b6 50%, #3b1e99 100%);
    box-shadow: 0 4px 16px rgba(59, 30, 153, 0.10);
    transition: all 0.2s ease;
    cursor: pointer;
    letter-spacing: 0.5px;
}

.quiz-btn:not(:last-child) {
    margin-bottom: 18px;
}

.quiz-btn:active, .quiz-btn:focus, .quiz-btn:hover {
    background: linear-gradient(180deg, #a18fff 0%, #8e44ad 50%, #2c1666 100%);
    transform: translateY(-2px) scale(1.03);
    box-shadow: 0 8px 24px rgba(59, 30, 153, 0.18);
    outline: none;
}

.escala-legenda {
    display: inline-block;
    margin-top: 0.5rem;
    font-size: 1.1rem;
    color: #7c4dff;
    font-weight: 600;
    letter-spacing: 0.5px;
}

@media (max-width: 576px) {
    .quiz-btn {
        font-size: 1rem;
        padding: 0.8rem 1.2rem;
        max-width: 98vw;
    }
    .escala-legenda {
        font-size: 1rem;
    }
}

body {
    background: linear-gradient(135deg, #ede7f6 0%, #d1c4e9 100%);
    min-height: 100vh;
}

.progress-bar {
    background: linear-gradient(180deg, #b39ddb 0%, #9b59b6 50%, #3b1e99 100%) !important;
    transition: width 0.4s ease;
}

.container {
    background: rgba(255,255,255,0.97);
    border-radius: 18px;
    box-shadow: 0 4px 24px rgba(59, 30, 153, 0.10);
    padding: 32px 18px;
    max-width: 420px;
    width: 100%;
    margin: 32px auto;
}

@media (max-width: 576px) {
    .container {
        max-width: 98vw;
        padding: 12px 4vw;
        margin: 12px auto;
    }
}