:root {
    --bg: #0b1220;
    --panel: #121b2e;
    --panel-2: #172238;
    --border: #23314d;
    --text: #e6ebf5;
    --muted: #8a97b1;
    --armed: #f5a524;
    --off: #64748b;
    --ok: #22c55e;
    --alarm: #ef4444;
    --accent: #3b82f6;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    background: radial-gradient(1200px 600px at 50% -200px, #16233f 0%, var(--bg) 60%) fixed, var(--bg);
    color: var(--text);
    font-family: "Segoe UI", system-ui, -apple-system, Roboto, sans-serif;
    min-height: 100vh;
}

/* Top bar */
.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 24px;
    background: rgba(11, 18, 32, .85);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    backdrop-filter: blur(8px);
    z-index: 10;
}
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 40px; height: auto; flex: none; }
.brand-name { font-size: 20px; font-weight: 700; letter-spacing: .5px; }
.brand-sub { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.5px; }
.topbar-right { display: flex; align-items: center; gap: 24px; }
.clock { text-align: right; font-variant-numeric: tabular-nums; font-size: 20px; font-weight: 600; }
.clock-date { font-size: 12px; color: var(--muted); font-weight: 400; text-transform: capitalize; }
.link { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); }
.link-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.link.down .link-dot { background: var(--alarm); box-shadow: 0 0 8px var(--alarm); }

/* MQTT status (admin) */
.mqtt-dot { border-radius: 50%; background: var(--off); flex: none; }
.mqtt-status {
    display: flex; align-items: center; gap: 14px;
    margin-bottom: 16px;
    border-left: 4px solid var(--off);
}
.mqtt-status .mqtt-dot { width: 14px; height: 14px; }
.mqtt-status-title { font-weight: 700; font-size: 16px; }
.mqtt-status-detail { color: var(--muted); font-size: 13px; margin-top: 2px; }
.mqtt-status .btn { margin-left: auto; }
.mqtt-status[data-stato="connesso"] { border-left-color: var(--ok); }
.mqtt-status[data-stato="connesso"] .mqtt-dot { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.mqtt-status[data-stato="connesso"] .mqtt-status-title { color: var(--ok); }
.mqtt-status[data-stato="errore"] { border-left-color: var(--alarm); }
.mqtt-status[data-stato="errore"] .mqtt-dot { background: var(--alarm); box-shadow: 0 0 8px var(--alarm); }
.mqtt-status[data-stato="errore"] .mqtt-status-title { color: var(--alarm); }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 9px 14px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--panel-2);
    color: var(--text);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: border-color .15s, background .15s;
}
.btn:hover { border-color: var(--accent); background: color-mix(in srgb, var(--accent) 15%, var(--panel-2)); }
.btn svg { width: 18px; height: 18px; flex: none; }

.wrap { max-width: 1280px; margin: 0 auto; padding: 24px; }

/* Admin */
.admin-layout { display: grid; grid-template-columns: 220px 1fr; gap: 28px; align-items: start; }
.admin-main { min-width: 0; }
.sidenav {
    position: sticky; top: 90px;
    display: flex; flex-direction: column; gap: 2px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 8px;
}
.sidenav a {
    color: var(--text);
    text-decoration: none;
    padding: 10px 12px;
    border-radius: 9px;
    font-size: 14px;
    font-weight: 600;
}
.sidenav a.sub { padding-left: 28px; font-weight: 500; color: var(--muted); position: relative; }
.sidenav a.sub::before { content: ""; position: absolute; left: 14px; top: 50%; width: 6px; height: 1px; background: var(--border); }
.sidenav .nav-group { padding: 10px 12px; font-size: 14px; font-weight: 600; color: var(--text); }
.sidenav a:hover { background: var(--panel-2); color: var(--text); }
.sidenav a.active { background: color-mix(in srgb, var(--accent) 20%, var(--panel)); color: #fff; box-shadow: inset 3px 0 0 var(--accent); }

.page-title { margin: 0 0 6px; font-size: 26px; }
.page-sub { margin: 0 0 20px; color: var(--muted); }
.flash {
    margin: 0 0 18px;
    padding: 10px 14px;
    border-radius: 10px;
    border: 1px solid color-mix(in srgb, var(--accent) 50%, var(--border));
    background: color-mix(in srgb, var(--accent) 12%, var(--panel));
    font-size: 14px;
}
.flash-err {
    border-color: color-mix(in srgb, var(--alarm) 55%, var(--border));
    background: color-mix(in srgb, var(--alarm) 12%, var(--panel));
}
.admin-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 16px; }
.admin-grid.two { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); margin-top: 16px; }
.admin-card, .panel {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 20px;
}
.admin-card h3 { margin: 0 0 6px; font-size: 17px; }
.admin-card p { margin: 0; color: var(--muted); font-size: 14px; line-height: 1.6; }
.link-card { color: inherit; text-decoration: none; transition: border-color .15s; }
.link-card:hover { border-color: var(--accent); }
.panel-title { margin: 0 0 6px; font-size: 16px; }
.hint { margin: 0 0 12px; color: var(--muted); font-size: 13px; }
.hint a { color: var(--accent); }
code { font-family: Consolas, "SFMono-Regular", monospace; font-size: .92em; color: #c7d2fe; }
pre.code {
    margin: 0;
    background: #0a101c;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 14px;
    overflow: auto;
    max-height: 320px;
    font-family: Consolas, "SFMono-Regular", monospace;
    font-size: 13px;
    color: #c7d2fe;
}

/* Forms */
.form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: flex; gap: 16px; flex-wrap: wrap; }
.field { display: flex; flex-direction: column; gap: 6px; }
.field.grow { flex: 1 1 240px; }
.field.w-sm { flex: 0 0 140px; }
.field > span { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
textarea { resize: vertical; min-height: 90px; line-height: 1.5; }
input[type="text"], input[type="number"], input[type="password"], textarea {
    width: 100%;
    background: #0a101c;
    border: 1px solid var(--border);
    border-radius: 9px;
    color: var(--text);
    padding: 10px 12px;
    font: inherit;
    font-size: 14px;
}
input:focus, textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 25%, transparent); }
input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent); }
.check { display: flex; align-items: center; gap: 10px; font-size: 14px; }
.form-actions { display: flex; justify-content: flex-end; gap: 10px; flex-wrap: wrap; margin-top: 4px; }
.panel > .form-actions { margin-top: 16px; }
button.btn { cursor: pointer; font: inherit; font-size: 14px; font-weight: 600; }
.btn-primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn-primary:hover { background: #2f6fe0; }
.btn-danger { color: #fca5a5; }
.btn-danger:hover { border-color: var(--alarm); background: color-mix(in srgb, var(--alarm) 18%, var(--panel-2)); }
.btn-sm { padding: 6px 10px; font-size: 13px; }
.default-submit { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* Tables */
.table-wrap { overflow-x: auto; }
.grid-table { width: 100%; border-collapse: collapse; min-width: 640px; }
.grid-table th {
    text-align: left;
    font-size: 11px;
    color: var(--muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
    padding: 0 8px 10px;
    border-bottom: 1px solid var(--border);
}
.grid-table td { padding: 8px; border-bottom: 1px solid color-mix(in srgb, var(--border) 60%, transparent); vertical-align: middle; }
.grid-table tr:last-child td { border-bottom: none; }
.grid-table .center { text-align: center; }
.grid-table .muted { color: var(--muted); padding: 20px; }
.code-cell { font-weight: 700; color: var(--muted); letter-spacing: 1px; font-size: 13px; white-space: nowrap; }
input.w-xs { min-width: 70px; }

/* Overall status */
.status {
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 22px 26px;
    border-radius: 16px;
    background: var(--panel);
    border: 1px solid var(--border);
    border-left: 6px solid var(--off);
}
.status-icon {
    width: 64px; height: 64px; flex: none;
    border-radius: 50%;
    display: grid; place-items: center;
    background: color-mix(in srgb, var(--off) 18%, transparent);
    color: var(--off);
}
.status-icon svg { width: 34px; height: 34px; }
.status-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.5px; }
.status-title { font-size: 28px; font-weight: 800; letter-spacing: .5px; margin: 2px 0; }
.status-detail { color: var(--muted); font-size: 14px; }
.status.is-armed { border-left-color: var(--armed); }
.status.is-armed .status-icon { color: var(--armed); background: color-mix(in srgb, var(--armed) 18%, transparent); }
.status.is-armed .status-title { color: var(--armed); }
.status.is-alarm {
    border-left-color: var(--alarm);
    background: linear-gradient(90deg, color-mix(in srgb, var(--alarm) 22%, var(--panel)), var(--panel));
    animation: alarm-glow 1.2s ease-in-out infinite;
}
.status.is-alarm .status-icon { color: #fff; background: var(--alarm); }
.status.is-alarm .status-title { color: var(--alarm); }

/* Stat tiles */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 16px; }
.stat {
    background: var(--panel);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px 20px;
    border-top: 3px solid var(--accent);
}
.stat-value { font-size: 34px; font-weight: 800; font-variant-numeric: tabular-nums; }
.stat-label { font-size: 13px; color: var(--muted); text-transform: uppercase; letter-spacing: 1px; }
.stat-armed { border-top-color: var(--armed); }
.stat-off { border-top-color: var(--off); }
.stat-alarm { border-top-color: var(--alarm); }
.stat-alarm.active .stat-value { color: var(--alarm); }

.section-head { display: flex; align-items: baseline; justify-content: space-between; margin: 28px 0 12px; }
.section-head h2 { margin: 0; font-size: 16px; text-transform: uppercase; letter-spacing: 2px; color: var(--muted); }
.updated { font-size: 12px; color: var(--muted); }

/* Zone cards */
.zones { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 16px; }
.zone {
    background: linear-gradient(180deg, var(--panel-2), var(--panel));
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 18px;
    position: relative;
    overflow: hidden;
}
.zone::before {
    content: "";
    position: absolute; inset: 0 auto 0 0;
    width: 4px;
    background: var(--off);
}
.zone.armed::before { background: var(--armed); }
.zone.alarm { border-color: var(--alarm); animation: alarm-glow 1.2s ease-in-out infinite; }
.zone.alarm::before { background: var(--alarm); }

.zone-head { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.zone-icon {
    width: 44px; height: 44px; flex: none;
    border-radius: 12px;
    display: grid; place-items: center;
    background: #0e1626;
    border: 1px solid var(--border);
    color: var(--muted);
}
.zone-icon svg { width: 24px; height: 24px; }
.zone.armed .zone-icon { color: var(--armed); }
.zone.alarm .zone-icon { color: #fff; background: var(--alarm); border-color: var(--alarm); }
.zone-code { font-size: 11px; color: var(--muted); letter-spacing: 1.5px; font-weight: 600; }
.zone-name { font-size: 17px; font-weight: 700; }

.zone-states { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.state {
    border-radius: 10px;
    padding: 10px 12px;
    background: #0e1626;
    border: 1px solid var(--border);
}
.state-label { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: 1.2px; margin-bottom: 4px; }
.state-value { display: flex; align-items: center; gap: 8px; font-weight: 700; font-size: 14px; }
.state.armed .state-value { color: var(--armed); }
.state.off .state-value { color: var(--off); }
.state.ok .state-value { color: var(--ok); }
.state.alarm { background: color-mix(in srgb, var(--alarm) 18%, #0e1626); border-color: var(--alarm); }
.state.alarm .state-value { color: #fff; }

.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; flex: none; }
.dot-armed { background: var(--armed); box-shadow: 0 0 8px var(--armed); }
.dot-off { background: var(--off); }
.dot-ok { background: var(--ok); box-shadow: 0 0 8px var(--ok); }
.dot-alarm { background: var(--alarm); box-shadow: 0 0 10px var(--alarm); animation: blink .8s steps(2, start) infinite; }

.empty { color: var(--muted); padding: 32px; text-align: center; border: 1px dashed var(--border); border-radius: 16px; grid-column: 1 / -1; }

.legend { display: flex; flex-wrap: wrap; gap: 20px; margin-top: 28px; color: var(--muted); font-size: 13px; }
.legend span { display: flex; align-items: center; gap: 8px; }

.powered { display: flex; align-items: center; justify-content: center; gap: 10px; padding: 28px 16px 32px; color: var(--muted); font-size: 12px; }
.powered img { height: 30px; width: auto; }

@keyframes alarm-glow {
    0%, 100% { box-shadow: 0 0 0 0 rgba(239, 68, 68, 0); }
    50% { box-shadow: 0 0 24px 2px rgba(239, 68, 68, .45); }
}
@keyframes blink { to { visibility: hidden; } }

@media (prefers-reduced-motion: reduce) {
    .zone.alarm, .status.is-alarm, .dot-alarm { animation: none; }
}

@media (max-width: 760px) {
    .topbar { padding: 12px 16px; }
    .link { display: none; }
    .topbar-right { gap: 12px; }
    .btn span { display: none; }
    .btn { padding: 9px; }
    .admin-layout { grid-template-columns: 1fr; gap: 16px; }
    .sidenav { position: static; flex-direction: row; overflow-x: auto; }
    .sidenav a { white-space: nowrap; }
    .sidenav a.sub { padding-left: 12px; }
    .sidenav a.sub::before { display: none; }
    .sidenav .nav-group { display: none; }
    .form-actions .btn span, .grid-table .btn span { display: inline; }
    button.btn { padding: 9px 14px; }
    button.btn-sm { padding: 6px 10px; }
    .wrap { padding: 16px; }
    .stats { grid-template-columns: repeat(2, 1fr); }
    .status { padding: 18px; gap: 14px; }
    .status-icon { width: 52px; height: 52px; }
    .status-title { font-size: 22px; }
}