* { box-sizing: border-box; }

body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background: #f5f5f5;
    color: #222;
}

.topbar {
    background: #00897b;
    color: white;
    padding: 24px 20px;
    text-align: center;
}

.topbar h1 {
    margin: 0 0 4px 0;
    font-size: 24px;
}

.topbar p {
    margin: 0;
    font-size: 14px;
    opacity: 0.9;
}

#app {
    max-width: 480px;
    margin: 0 auto;
    padding: 16px;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 16px;
    box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

.card h2 {
    margin: 0 0 4px 0;
    font-size: 18px;
    color: #222;
}

.card h3 {
    margin: 20px 0 8px 0;
    font-size: 15px;
    color: #555;
}

.hint {
    font-size: 13px;
    color: #777;
    margin: 0 0 14px 0;
}

.campo {
    margin-bottom: 14px;
}

.campo label {
    display: block;
    font-size: 13px;
    color: #555;
    margin-bottom: 4px;
}

.campo input,
.campo select {
    width: 100%;
    padding: 10px;
    font-size: 15px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background: white;
}

.opzioni label {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    padding: 10px 0;
    border-top: 1px solid #eee;
    font-size: 14px;
}

.opzioni label:first-child {
    border-top: none;
}

.opzioni input {
    margin-top: 2px;
}

.sub {
    font-size: 12px;
    color: #999;
}

.btn-primario {
    width: 100%;
    padding: 14px;
    background: #00897b;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-bottom: 20px;
}

.btn-primario:active {
    opacity: 0.85;
}

.hidden {
    display: none;
}

.riga {
    font-size: 13px;
    color: #444;
    margin: 0 0 8px 0;
    line-height: 1.5;
}

.avviso {
    border-radius: 8px;
    padding: 10px 12px;
    margin-bottom: 8px;
    font-size: 13px;
}

.avviso-danger {
    background: #fdecea;
    color: #b3261e;
}

.avviso-warning {
    background: #fff4e5;
    color: #a35a00;
}

.avviso-success {
    background: #e6f4ea;
    color: #1e7e34;
}