.campo { display: flex; flex-direction: column; }
.campo label { margin-bottom: 8px; font-weight: 600; }
.campo input {
    padding: 12px;
    border: 1px solid var(--borda);
    border-radius: 10px;
    background: var(--bg);
    color: var(--texto);
    font-size: 15px;
    outline: none;
    transition: .3s;
}
.campo input:focus { border-color: var(--cor-primaria); box-shadow: 0 0 0 4px rgba(37, 99, 235, .15); }
.dica { display: block; margin-top: 6px; font-size: 12px; color: var(--texto-sec); font-style: italic; }

.btn-dark {
    width: 48px;
    height: 48px;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    background: var(--cor-primaria);
    color: white;
    font-size: 20px;
    transition: .3s;
}
.btn-dark:hover { transform: rotate(180deg); }

.btn {
    border: none;
    cursor: pointer;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 10px;
}
.btn-principal { background: var(--cor-primaria); color: #fff; }
.btn-principal:hover { background: var(--cor-secundaria); transform: translateY(-3px); }
.btn-secundario { background: var(--card); color: var(--texto); border: 2px solid var(--cor-primaria); }
.btn-secundario:hover { background: var(--cor-primaria); color: #fff; }
.btn:active { transform: scale(.97); }
.btn i { font-size: 16px; }
.btn:hover:not(:disabled) { box-shadow: 0 8px 18px rgba(37, 99, 235, .18); }

.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 20px; margin-top: 25px; }
.card {
    background: var(--bg);
    border-radius: 16px;
    padding: 22px;
    border: 1px solid var(--borda);
    text-align: center;
    animation: fade .45s;
}
.card:hover { transform: translateY(-8px); box-shadow: var(--sombra); }
.card h3 { font-size: 15px; color: var(--texto-sec); margin-bottom: 15px; }
.card p { font-size: 28px; font-weight: 700; color: var(--cor-primaria); }
.card.destaque { border: 2px solid var(--verde); }
.card.destaque p { color: var(--verde); font-size: 32px; }

.card, .container, .btn {
    transition: transform .3s ease, box-shadow .3s ease, background .3s ease, color .3s ease;
}

.diagnostico-box {
    background: var(--bg);
    border-left: 6px solid var(--cor-primaria);
    border-radius: 12px;
    padding: 22px;
    margin-top: 15px;
    font-size: 18px;
    font-weight: 500;
    line-height: 1.6;
    transition: .3s;
}

#resultadoCorrida { margin-top: 30px; }
.sucesso { border-left: 6px solid var(--verde); }
.alerta { border-left: 6px solid var(--amarelo); }
.erro { border-left: 6px solid var(--vermelho); }
.excelente { border-left: 6px solid var(--cor-primaria); }