:root{
  --bg:#0c1016; --bg2:#121821; --panel:#161d28; --panel2:#1b2431; --line:#263142;
  --text:#e3e8ef; --muted:#8693a6; --accent:#3d8bfd;
  --green:#22e06b; --amber:#ffb020; --red:#ff3b3b; --off:#3a4352;
  --radius:12px;
  --mono:ui-monospace,"SF Mono","Cascadia Mono",Consolas,monospace;
}
*{box-sizing:border-box}
html,body{margin:0}
body{background:var(--bg);color:var(--text);font:14px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;min-height:100vh}
[hidden]{display:none!important}
button,input,select{font:inherit;color:inherit}
code{font-family:var(--mono);font-size:12px;background:var(--bg2);padding:1px 5px;border-radius:4px}
h1,h2{margin:0}
h2{font-size:15px;font-weight:650;margin-bottom:14px}

/* ---------- LED ---------- */
.led{--c:var(--off);display:inline-block;flex:none;width:16px;height:16px;border-radius:50%;
  background:radial-gradient(circle at 35% 30%,rgba(255,255,255,.75) 0 12%,transparent 30%),var(--c);
  box-shadow:0 0 10px 2px color-mix(in srgb,var(--c) 70%,transparent),inset 0 -3px 4px rgba(0,0,0,.35)}
.led.sm{width:11px;height:11px}
.led.lg{width:22px;height:22px}
.led.green{--c:var(--green)}
.led.amber{--c:var(--amber)}
.led.red{--c:var(--red);animation:blink 1.1s ease-in-out infinite}
.led.blink{animation:blink 1.1s ease-in-out infinite}
.led.grey{--c:var(--off);box-shadow:inset 0 -3px 4px rgba(0,0,0,.35),inset 0 1px 1px rgba(255,255,255,.08)}
.led.still{animation:none}
@keyframes blink{50%{filter:brightness(.45);box-shadow:inset 0 -3px 4px rgba(0,0,0,.35)}}
@media (prefers-reduced-motion:reduce){.led.red,.led.blink{animation:none}}

/* ---------- Bottoni / form ---------- */
.btn{background:var(--panel2);border:1px solid var(--line);border-radius:8px;padding:8px 14px;cursor:pointer;white-space:nowrap}
.btn:hover{border-color:var(--accent)}
.btn:disabled{opacity:.5;cursor:default}
.btn.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
.btn.primary:hover{filter:brightness(1.1)}
.btn.ghost{background:transparent}
.btn.danger{color:#ff8080}
.btn.danger:hover{border-color:var(--red)}
.btn.sm{padding:4px 10px;font-size:12.5px}
.btn.wide{width:100%}
label{display:flex;flex-direction:column;gap:5px;font-size:12.5px;color:var(--muted)}
input,select{background:var(--bg2);border:1px solid var(--line);border-radius:8px;padding:9px 11px;font-size:14px;color:var(--text);min-width:0}
input:focus,select:focus{outline:2px solid color-mix(in srgb,var(--accent) 60%,transparent);outline-offset:0;border-color:var(--accent)}
label.check{flex-direction:row;align-items:center;gap:8px;color:var(--text);font-size:14px}
label.check.big{margin-bottom:16px}
input[type=checkbox]{width:17px;height:17px;accent-color:var(--accent)}
.err{color:#ff7b7b;min-height:20px;margin:10px 0 0;font-size:13px}
.hint{color:var(--muted);font-size:12.5px;margin:14px 0 0}
.form-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;align-items:end}
.form-grid .span2{grid-column:span 2}
.form-grid .span-all{grid-column:1/-1}
.form-actions{display:flex;gap:10px;flex-wrap:wrap}

/* ---------- Login ---------- */
.login{min-height:100vh;display:grid;place-items:center;padding:16px;
  background:radial-gradient(ellipse at top,#16233a 0,var(--bg) 60%)}
.login-card{width:100%;max-width:360px;background:var(--panel);border:1px solid var(--line);border-radius:16px;padding:28px;display:flex;flex-direction:column;gap:16px;box-shadow:0 20px 60px rgba(0,0,0,.4)}
.login-brand{text-align:center;margin-bottom:6px}
.login-brand h1{font-size:22px;letter-spacing:.02em;margin-top:12px}
.login-brand p{color:var(--muted);margin:2px 0 0;font-size:13px}
.login-logo{width:72px;height:72px;filter:drop-shadow(0 10px 24px rgba(47,111,237,.35))}
.login-brand h1{font-size:26px}
.wordmark{font-weight:500;letter-spacing:-.01em}
.wordmark b{font-weight:800;background:linear-gradient(135deg,#5b9bff,#22d3a6);-webkit-background-clip:text;background-clip:text;color:transparent}
.brand-logo{width:30px;height:30px;flex:none}
.brand .wordmark{font-size:17px}
.brand #global-led{margin-left:2px}

/* ---------- Barra superiore ---------- */
.topbar{position:sticky;top:0;z-index:10;display:flex;align-items:center;gap:18px;flex-wrap:wrap;
  padding:10px 20px;background:rgba(18,24,33,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px}
#tabs{display:flex;gap:4px;flex-wrap:wrap;flex:1}
#tabs button{white-space:nowrap;background:none;border:0;border-radius:8px;padding:7px 12px;cursor:pointer;color:var(--muted)}
#tabs button:hover{color:var(--text);background:var(--panel2)}
#tabs button.active{color:var(--text);background:var(--panel2);box-shadow:inset 0 -2px 0 var(--accent)}
.userbox{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}

main{max-width:1400px;margin:0 auto;padding:20px}

/* ---------- Avviso connessione ---------- */
.conn-warn{display:flex;align-items:center;gap:10px;padding:10px 16px;margin-bottom:14px;border-radius:10px;font-size:13.5px;
  background:color-mix(in srgb,var(--amber) 14%,var(--panel));border:1px solid color-mix(in srgb,var(--amber) 50%,var(--line));color:#ffd58a}
.conn-warn b{color:#ffe2a8}

/* ---------- Sintesi ---------- */
.overview{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:12px;margin-bottom:14px}
.banner{display:flex;align-items:center;gap:16px;padding:16px 20px;border-radius:var(--radius);
  border:1px solid var(--line);background:var(--panel);min-width:0}
.banner-text{flex:1;min-width:0}
#banner-title{font-size:18px;font-weight:700;letter-spacing:-.005em}
#banner-sub{display:block;font-size:13px;color:var(--muted);margin-top:2px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner.ok{border-color:color-mix(in srgb,var(--green) 35%,var(--line));background:linear-gradient(90deg,color-mix(in srgb,var(--green) 9%,var(--panel)),var(--panel) 70%)}
.banner.warn{border-color:color-mix(in srgb,var(--amber) 40%,var(--line));background:linear-gradient(90deg,color-mix(in srgb,var(--amber) 10%,var(--panel)),var(--panel) 70%)}
.banner.bad{border-color:color-mix(in srgb,var(--red) 55%,var(--line));background:linear-gradient(90deg,color-mix(in srgb,var(--red) 16%,var(--panel)),var(--panel) 75%)}
.banner.bad #banner-sub{color:#ffaaaa}
.banner-meta{display:flex;align-items:center;gap:22px;flex:none;padding-left:20px;border-left:1px solid var(--line)}
.banner-meta div{display:flex;flex-direction:column;line-height:1.3}
.banner-meta small{font-size:11px;color:var(--muted)}
.banner-meta b{font:600 14px var(--mono)}
.banner-meta b.ok{color:var(--green)}
.banner-meta b.off{color:var(--amber)}
.counters{display:grid;grid-template-columns:repeat(3,96px);gap:12px}
.counter{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;gap:2px;padding:10px 14px;cursor:pointer;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);color:var(--text);text-align:left}
.counter:hover{border-color:var(--accent)}
.counter b{font:600 26px/1.1 var(--mono)}
.counter small{font-size:11.5px;color:var(--muted)}
.counter .led{margin-bottom:4px}
.counter:not(.lit) .led.red{animation:none;--c:var(--off);box-shadow:inset 0 -3px 4px rgba(0,0,0,.35)}
.counter:not(.lit).c-warn .led{--c:var(--off);box-shadow:inset 0 -3px 4px rgba(0,0,0,.35)}
.counter.lit.c-down{border-color:color-mix(in srgb,var(--red) 55%,var(--line));background:color-mix(in srgb,var(--red) 12%,var(--panel))}
.counter.lit.c-down b{color:#ff8080}
.counter.lit.c-warn b{color:var(--amber)}
.counter.active{outline:2px solid var(--accent);outline-offset:-1px}

/* ---------- Barra strumenti ---------- */
.toolbar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-bottom:14px}
.tb-group{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tb-group.grow{flex:1}
.toolbar input[type=search]{width:230px;padding:7px 11px;font-size:13.5px}
.toolbar select{padding:7px 10px;font-size:13.5px}
.chips,.seg{display:inline-flex;background:var(--bg2);border:1px solid var(--line);border-radius:9px;padding:3px;gap:2px}
.chips button,.seg button{background:none;border:0;border-radius:6px;padding:5px 11px;font-size:13px;color:var(--muted);cursor:pointer}
.chips button:hover,.seg button:hover{color:var(--text)}
.chips button.on,.seg button.on{background:var(--panel2);color:var(--text);box-shadow:0 1px 2px rgba(0,0,0,.3)}
.seg button{padding:5px 8px;display:grid;place-items:center}
.seg svg,.btn.icon svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.btn.icon{padding:6px 8px;display:grid;place-items:center;color:var(--muted)}
.btn.icon:hover{color:var(--text)}
.btn.icon.on{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 55%,var(--line))}
#sound-btn .mute{display:inline}#sound-btn .wave{display:none}
#sound-btn.on .mute{display:none}#sound-btn.on .wave{display:inline}

/* ---------- Pannello LED ---------- */
.board{display:grid;grid-template-columns:repeat(auto-fill,minmax(270px,1fr));gap:12px}
.tile{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:14px 16px;display:flex;flex-direction:column;gap:8px;position:relative;overflow:hidden}
.tile.st-down{border-color:color-mix(in srgb,var(--red) 55%,var(--line));background:linear-gradient(180deg,color-mix(in srgb,var(--red) 12%,var(--panel)),var(--panel) 70%)}
.tile.st-warn,.tile.st-unstable{border-color:color-mix(in srgb,var(--amber) 40%,var(--line))}
.tile.st-disabled{opacity:.55}
.tile-head{display:flex;align-items:center;gap:12px}
.ticon{flex:none;width:44px;height:44px;border-radius:10px;display:grid;place-items:center;
  background:var(--panel2);border:1px solid var(--line);color:#b9c4d4}
.ticon svg{width:26px;height:26px}
.st-up .ticon{color:color-mix(in srgb,var(--green) 55%,#c9d3e0)}
.st-down .ticon{color:#ff8a8a;border-color:color-mix(in srgb,var(--red) 45%,var(--line));background:color-mix(in srgb,var(--red) 14%,var(--panel2))}
.st-warn .ticon,.st-unstable .ticon{color:color-mix(in srgb,var(--amber) 70%,#c9d3e0)}
.ttitle{flex:1;min-width:0;display:flex;flex-direction:column;gap:2px}
.tcat{font-size:12px;color:var(--muted);display:flex;align-items:center;gap:6px}
.tname{font-weight:650;font-size:15px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.cat-select{display:flex;align-items:center;gap:8px}
.cat-select select{flex:1}
.cat-preview{flex:none;width:38px;height:38px;border-radius:8px;display:grid;place-items:center;background:var(--bg2);border:1px solid var(--line);color:var(--text)}
.cat-preview svg{width:22px;height:22px}
.cat-cell{display:inline-flex;align-items:center;gap:7px;white-space:nowrap}
.cat-cell svg{width:18px;height:18px;color:var(--muted)}
.tag{font:600 10.5px var(--mono);letter-spacing:.06em;color:var(--muted);border:1px solid var(--line);border-radius:5px;padding:1px 6px}
.taddr{font-family:var(--mono);font-size:12px;color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tstate{display:flex;justify-content:space-between;align-items:baseline;font:700 12px var(--mono);letter-spacing:.08em}
.tstate span{font:400 12px system-ui,sans-serif;letter-spacing:0;color:var(--muted)}
.st-up .tstate{color:var(--green)}
.st-warn .tstate,.st-unstable .tstate{color:var(--amber)}
.st-down .tstate{color:var(--red)}
.st-pending .tstate,.st-disabled .tstate{color:var(--muted)}
.tmetrics{display:flex;gap:18px;margin:0}
.tmetrics div{display:flex;flex-direction:column}
.tmetrics dt{font-size:11px;color:var(--muted)}
.tmetrics dd{margin:0;font-family:var(--mono);font-size:14px}
.tdetail{font-size:12.5px;color:var(--muted);min-height:18px}
.st-down .tdetail{color:#ff9a9a}
.hist{display:flex;gap:2px;height:16px;align-items:stretch}
.hist i{flex:1;border-radius:2px;background:var(--line)}
.hist i.ok{background:color-mix(in srgb,var(--green) 75%,var(--panel))}
.hist i.ko{background:var(--red)}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:44px 20px;border:1px dashed var(--line);border-radius:var(--radius)}
.empty b{display:block;color:var(--text);font-size:15px;margin-bottom:4px}
.empty p{margin:0 0 14px}
.empty-icon{width:48px;height:48px;margin:0 auto 10px;color:var(--muted)}
.empty-icon svg{width:100%;height:100%}

/* ---------- Gruppi per dispositivo ---------- */
.group-h{grid-column:1/-1;display:flex;align-items:center;gap:8px;margin:8px 0 -2px;font-weight:650;font-size:13.5px;
  color:var(--text);padding-bottom:6px;border-bottom:1px solid var(--line)}
.group-h:first-child{margin-top:0}
.group-h svg{width:18px;height:18px;color:var(--muted)}
.group-h small{color:var(--muted);font-weight:400}
.group-h em{color:#ff8080;font-style:normal}

/* ---------- Vista compatta (muro di LED) ---------- */
.board.compact{grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:8px}
.mini{display:flex;align-items:center;gap:10px;padding:9px 12px;background:var(--panel);border:1px solid var(--line);border-radius:10px;min-width:0}
.mini .led{width:14px;height:14px}
.mini-icon{flex:none;width:20px;height:20px;color:var(--muted)}
.mini-icon svg{width:100%;height:100%}
.mini-txt{flex:1;min-width:0;display:flex;flex-direction:column;line-height:1.25}
.mini-name{font-weight:600;font-size:13.5px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mini-sub{font:11.5px var(--mono);color:var(--muted);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.mini-ms{flex:none;font:600 11.5px var(--mono);color:var(--muted)}
.mini.st-down{border-color:color-mix(in srgb,var(--red) 55%,var(--line));background:color-mix(in srgb,var(--red) 13%,var(--panel))}
.mini.st-down .mini-icon,.mini.st-down .mini-ms{color:#ff8a8a}
.mini.st-down .mini-sub{color:#ffaaaa;font-family:inherit}
.mini.st-warn,.mini.st-unstable{border-color:color-mix(in srgb,var(--amber) 40%,var(--line))}
.mini.st-warn .mini-ms,.mini.st-unstable .mini-ms{color:var(--amber)}
.mini.st-disabled{opacity:.5}

/* ---------- Modalità schermo intero / TV ---------- */
body.tv .topbar,body.tv .toolbar .tb-group.grow{display:none}
body.tv main{max-width:none;padding:18px 22px 12px}
body.tv #fs-btn{color:var(--accent)}
body.tv .board.cards{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}

/* ---------- Pannelli / tabelle ---------- */
.panel{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;margin-bottom:16px}
.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
.panel-head h2{margin:0}
.table-wrap{overflow-x:auto}
.tbl{width:100%;border-collapse:collapse;font-size:13.5px}
.tbl th{text-align:left;font-weight:600;font-size:12px;color:var(--muted);padding:8px 10px;border-bottom:1px solid var(--line)}
.tbl td{padding:9px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
.tbl tr:last-child td{border-bottom:0}
.tbl td.mono{font-family:var(--mono);font-size:12.5px;word-break:break-all}
.tbl td.actions{text-align:right;white-space:nowrap}
.tbl td.actions .btn{margin-left:4px}
.tbl .muted{color:var(--muted)}
.pill{font-size:11.5px;font-weight:600;padding:2px 8px;border-radius:99px;background:var(--panel2);border:1px solid var(--line)}
.pill.admin{color:var(--accent);border-color:color-mix(in srgb,var(--accent) 50%,var(--line))}

/* ---------- Dialog / toast ---------- */
dialog{background:var(--panel);color:var(--text);border:1px solid var(--line);border-radius:16px;padding:24px;width:min(400px,calc(100% - 32px))}
dialog::backdrop{background:rgba(0,0,0,.6)}
dialog form{display:flex;flex-direction:column;gap:14px}
#toasts{position:fixed;right:16px;bottom:16px;display:flex;flex-direction:column;gap:8px;z-index:50;max-width:calc(100% - 32px)}
.toast{background:var(--panel2);border:1px solid var(--line);border-left:4px solid var(--green);border-radius:10px;padding:10px 14px;box-shadow:0 8px 30px rgba(0,0,0,.4);animation:in .2s ease-out}
.toast.bad{border-left-color:var(--red)}
@keyframes in{from{transform:translateY(8px);opacity:0}}

/* ---------- Firma / versione ---------- */
.corner{position:fixed;left:14px;bottom:12px;z-index:40;font-size:11.5px;color:var(--muted);
  background:color-mix(in srgb,var(--bg2) 88%,transparent);border:1px solid var(--line);border-radius:99px;padding:4px 11px;
  backdrop-filter:blur(6px);pointer-events:none;letter-spacing:.01em}
#app-version{font-family:var(--mono);color:var(--text);margin-left:2px}
main{padding-bottom:12px}
/* nell'app la firma sta in fondo alla pagina, senza coprire i riquadri */
body:has(#app-view:not([hidden])) .corner{display:none}
.hdr-ver{font-size:11.5px;color:var(--muted);background:var(--bg2);border:1px solid var(--line);border-radius:99px;padding:3px 10px;white-space:nowrap}
.hdr-ver b{font:600 11.5px var(--mono);color:var(--text)}
.userbox #me{padding-left:10px;border-left:1px solid var(--line)}
.sm-only{display:none}

/* ---------- Responsive ---------- */
@media (max-width:1150px){
  .overview{grid-template-columns:1fr}
  .counters{grid-template-columns:repeat(3,minmax(0,1fr))}
}
@media (max-width:900px){
  .banner{flex-wrap:wrap}
  .banner-meta{width:100%;padding:12px 0 0;border-left:0;border-top:1px solid var(--line);justify-content:space-between}
}
@media (max-width:760px){
  .topbar{padding:10px 16px;gap:10px}
  .userbox{width:100%;justify-content:flex-end;order:2;flex-wrap:wrap}
  .hdr-ver-name{display:none}
  .lg-only{display:none}
  .sm-only{display:inline}
  .userbox{flex-wrap:nowrap;gap:6px}
  .userbox #me{border-left:0;padding-left:0}
  #tabs{order:3;width:100%;overflow-x:auto;flex-wrap:nowrap}
  main{padding:16px 16px 12px}
  #banner-sub{white-space:normal}
  .banner-meta{gap:12px}
  .toolbar input[type=search]{width:100%}
  .tb-group.grow{width:100%}
  .tb-group.grow select{flex:1;min-width:0}
  .chips{width:100%}
  .chips button{flex:1;padding:6px 4px}
  .form-grid{grid-template-columns:1fr}
  .form-grid .span2{grid-column:auto}
  .board.cards{grid-template-columns:1fr}
  .tbl td.actions{white-space:normal}
}