* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    padding: 24px;
    display: grid;
    place-items: center;
    background: linear-gradient(140deg, #10213e, #176b87);
    font-family: system-ui, -apple-system, sans-serif;
    color: #172033;
}

.card {
    width: 100%;
    max-width: 680px;
    background: #fff;
    padding: clamp(22px, 5vw, 42px);
    border-radius: 22px;
    box-shadow: 0 22px 60px #00152b55;
}

.topo {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 22px;
}

.emoji {
    font-size: 2.6rem;
}

h1 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin: 0;
}

.sub {
    color: #64748b;
    margin: 5px 0 0;
}

.progresso {
    height: 9px;
    background: #e2e8f0;
    border-radius: 99px;
    overflow: hidden;
    margin: 18px 0 26px;
}

.barra {
    height: 100%;
    background: #0d9488;
    transition: width 0.2s;
}

.meta {
    display: flex;
    justify-content: space-between;
    gap: 10px;
    color: #64748b;
    font-size: 0.92rem;
}

.pergunta {
    font-size: 1.25rem;
    font-weight: 750;
    line-height: 1.45;
    margin: 14px 0 22px;
}

.opcao {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    border: 2px solid #dbe3ec;
    padding: 14px 15px;
    border-radius: 12px;
    margin: 10px 0;
    cursor: pointer;
    transition: 0.15s;
}

.opcao:hover {
    border-color: #0d9488;
    background: #f0fdfa;
}

.opcao input {
    margin-top: 5px;
    accent-color: #0f766e;
    flex-shrink: 0;
}

.opcao:has(input:checked) {
    border-color: #0d9488;
    background: #f0fdfa;
}

button {
    width: 100%;
    padding: 14px 18px;
    margin-top: 16px;
    border: 0;
    border-radius: 11px;
    background: #0f766e;
    color: white;
    font: inherit;
    font-weight: 750;
    cursor: pointer;
}

button:hover {
    background: #115e59;
}

button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.feedback {
    padding: 15px 17px;
    border-radius: 12px;
    margin-top: 18px;
    line-height: 1.5;
}

.certo {
    background: #dcfce7;
    color: #166534;
}

.errado {
    background: #fee2e2;
    color: #991b1b;
}

.resultado {
    text-align: center;
}

.nota {
    font-size: 3.5rem;
    font-weight: 850;
    color: #0f766e;
    margin: 12px;
}

.dica {
    color: #64748b;
    line-height: 1.6;
}

@media (max-width: 480px) {
    body {
        padding: 12px;
    }

    .card {
        border-radius: 16px;
    }

    .meta {
        font-size: 0.82rem;
    }
}


.rodape {
    text-align: center;
    margin: 20px 0;
    font-size: 0.85rem;
    color: #FFFFFF;
}