:root {
    --color-primary: #1e5288;
    --color-primary-dark: #143a61;
    --color-danger: #b3261e;
    --color-success: #1e6b3c;
    --color-warning: #8a6100;
    --color-border: #d5dbe2;
    --color-bg: #f5f7fa;
    --color-surface: #ffffff;
    --color-text: #1c1f24;
    --color-text-muted: #5b6470;
    --radius: 6px;
    --font: -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

* { box-sizing: border-box; }

body {
    font-family: var(--font);
    background: var(--color-bg);
    color: var(--color-text);
    margin: 0;
    line-height: 1.5;
}

.container {
    max-width: 1600px;
    width: 96%;
    margin: 0 auto;
    padding: 24px;
}

.table-scroll {
    overflow-x: auto;
    max-width: 100%;
}

nav.topnav {
    background: var(--color-primary);
    color: #fff;
    padding: 12px 24px;
    display: flex;
    align-items: center;
    gap: 20px;
}

nav.topnav a {
    color: #fff;
    text-decoration: none;
    font-size: 14px;
    opacity: 0.9;
}

nav.topnav a:hover { opacity: 1; text-decoration: underline; }

nav.topnav .brand {
    font-weight: 600;
    opacity: 1;
    margin-right: auto;
}

.nav-dropdown {
    position: relative;
}

.nav-dropdown-label {
    cursor: pointer;
    font-size: 14px;
    opacity: 0.9;
}

.nav-dropdown:hover .nav-dropdown-label,
.nav-dropdown-label:focus {
    opacity: 1;
    text-decoration: underline;
}

.nav-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--color-primary-dark);
    border-radius: var(--radius);
    padding: 8px 0;
    min-width: 200px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
    z-index: 20;
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
    display: block;
}

.nav-dropdown-menu a {
    display: block;
    padding: 8px 16px;
    opacity: 0.9;
    white-space: nowrap;
}

.nav-dropdown-menu a:hover {
    opacity: 1;
    background: rgba(255, 255, 255, 0.08);
    text-decoration: none;
}

h1 {
    font-size: 22px;
    margin: 0 0 16px;
    color: var(--color-primary-dark);
}

h2 {
    font-size: 16px;
    margin: 28px 0 12px;
    color: var(--color-text);
    border-bottom: 1px solid var(--color-border);
    padding-bottom: 6px;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 20px;
    margin-bottom: 20px;
}

.alert {
    padding: 10px 14px;
    border-radius: var(--radius);
    margin-bottom: 16px;
    font-size: 14px;
}

.alert-error {
    background: #fbeaea;
    color: var(--color-danger);
    border: 1px solid #f0c4c1;
}

.alert-success {
    background: #e9f5ee;
    color: var(--color-success);
    border: 1px solid #bfe3cd;
}

form.admin-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
    max-width: 480px;
}

form.admin-form label {
    display: flex;
    flex-direction: column;
    font-size: 13px;
    color: var(--color-text-muted);
    gap: 4px;
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="file"],
select {
    font-family: var(--font);
    font-size: 14px;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    background: var(--color-surface);
    color: var(--color-text);
}

input:focus, select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(30, 82, 136, 0.15);
}

button, .btn {
    font-family: var(--font);
    font-size: 13px;
    padding: 7px 14px;
    border-radius: var(--radius);
    border: 1px solid var(--color-primary);
    background: var(--color-primary);
    color: #fff;
    cursor: pointer;
}

button:hover { background: var(--color-primary-dark); }

button.btn-danger {
    background: #fff;
    color: var(--color-danger);
    border-color: var(--color-danger);
}

button.btn-danger:hover { background: var(--color-danger); color: #fff; }

button.btn-secondary {
    background: #fff;
    color: var(--color-primary);
}

button.btn-secondary:hover { background: var(--color-bg); }

table.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-surface);
    font-size: 13px;
}

table.admin-table input[type="text"],
table.admin-table input[type="email"],
table.admin-table select {
    width: 100%;
    min-width: 160px;
}

table.admin-table th,
table.admin-table td {
    border: 1px solid var(--color-border);
    padding: 8px 10px;
    text-align: left;
    vertical-align: middle;
}

table.admin-table th {
    background: #eef2f6;
    color: var(--color-text-muted);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

table.admin-table tr:nth-child(even) td { background: #fafbfc; }

.badge {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 999px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-attivo, .badge-attiva, .badge-successo, .badge-confermato { background: #e9f5ee; color: var(--color-success); }
.badge-sospeso, .badge-in_attesa { background: #fdf3e0; color: var(--color-warning); }
.badge-rimosso, .badge-dismessa, .badge-bloccata, .badge-errore { background: #fbeaea; color: var(--color-danger); }

.actions-cell { display: flex; gap: 6px; flex-wrap: wrap; align-items: center; }

details > summary { list-style: none; }
details > summary::-webkit-details-marker { display: none; }

.muted { color: var(--color-text-muted); font-size: 12px; }

.metric-cards {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 12px;
    margin-bottom: 24px;
}

.metric-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
}

.metric-card-label {
    font-size: 13px;
    color: var(--color-text-muted);
    margin-bottom: 4px;
}

.metric-card-value {
    font-size: 26px;
    font-weight: 600;
    color: var(--color-text);
}

.metric-card-value.metric-warning { color: var(--color-warning); }

@media (max-width: 900px) {
    .metric-cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}