/* ============================
   BASE
============================ */
body {
    margin: 0;
    font-family: system-ui, sans-serif;
    background: #f4f5f7;
    color: #222;
}

/* ============================
   LOGIN
============================ */
.login-body {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100vh;
    padding: 20px;
}

.login-box {
    background: #fff;
    padding: 30px;
    border-radius: 12px;
    width: 100%;
    max-width: 380px;
    box-shadow: 0 8px 20px rgba(0,0,0,0.1);
}

.login-box h2 {
    margin-top: 0;
    text-align: center;
}

.login-box input {
    width: 100%;
    padding: 14px;
    margin-top: 8px;
    border-radius: 8px;
    border: 1px solid #ccc;
    font-size: 16px;
}

.login-box button {
    width: 100%;
    margin-top: 20px;
    padding: 14px;
    background: #0052cc;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 17px;
}

.alert {
    background: #ffebe6;
    color: #bf2600;
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 12px;
}

/* ============================
   LAYOUT
============================ */
.app-shell {
    display: flex;
    min-height: 100vh;
}

/* SIDEBAR */
.sidebar {
    width: 220px;
    background: #172b4d;
    color: #fff;
    padding: 20px;
    flex-shrink: 0;
}

.sidebar a {
    display: block;
    color: #fff;
    text-decoration: none;
    margin: 12px 0;
    font-size: 17px;
}

/* MAIN CONTENT */
.main {
    flex: 1;
    padding: 20px;
}

/* CARD */
.card {
    background: #fff;
    padding: 20px;
    border-radius: 12px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
    margin-bottom: 20px;
}

/* ============================
   RESPONSIVE
============================ */
@media (max-width: 900px) {

    /* Sidebar diventa superiore */
    .app-shell {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        text-align: center;
        padding: 15px;
    }

    .sidebar a {
        display: inline-block;
        margin: 8px 12px;
        font-size: 16px;
    }

    .main {
        padding: 15px;
    }
}

@media (max-width: 600px) {

    /* Input e pulsanti più grandi */
    input, select, textarea, button {
        font-size: 18px !important;
        padding: 14px !important;
        border-radius: 10px !important;
    }

    .btn {
        width: 100%;
        margin-bottom: 12px;
        font-size: 18px;
        padding: 14px;
    }

    /* Tabelle scrollabili */
    table {
        display: block;
        overflow-x: auto;
        white-space: nowrap;
    }

    th, td {
        padding: 12px;
        font-size: 16px;
    }

    /* Card più morbide */
    .card {
        padding: 18px;
        border-radius: 14px;
    }
}

/* ============================
   MODALI RESPONSIVE
============================ */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.55);
    justify-content: center;
    align-items: center;
    padding: 10px;
    z-index: 9999;
}

.modal-content {
    background: #fff;
    width: 100%;
    max-width: 520px;
    padding: 20px;
    border-radius: 14px;
    max-height: 90vh;
    overflow-y: auto;
}

/* ============================
   CANVAS FIRMA
============================ */
canvas {
    width: 100%;
    height: 200px;
    border: 2px solid #000;
    border-radius: 10px;
    background: #fff;
    touch-action: none; /* evita scroll durante la firma */
}