body {
    margin: 0;
    font-family: sans-serif;
    background: #f2f5f1;
    color: #223126;
}

.container {
    max-width: 920px;
    margin: 0 auto;
    padding: 32px 20px 48px;
}

.painel {
    background: #ffffff;
    border: 2px solid #d6e0d2;
    border-radius: 16px;
    padding: 20px;
    margin-bottom: 18px;
}

.formulario,
.busca {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
}

input,
button {
    font: inherit;
}

input {
    padding: 12px 14px;
    border: 1px solid #b8cab4;
    border-radius: 10px;
}

button {
    border: 0;
    border-radius: 10px;
    padding: 12px 16px;
    background: #2e7a58;
    color: #fff;
    cursor: pointer;
}

.mensagem,
.resultado {
    grid-column: 1 / -1;
    min-height: 24px;
    margin: 0;
    color: #2e7a58;
    font-weight: 700;
}

#lista-contatos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 14px;
}

.card-contato {
    background: #f7fbf6;
    border: 2px solid #d6e0d2;
    border-radius: 14px;
    padding: 16px;
}