:root{
  --bg:#0a0e16; --bg2:#0d1220; --card:#121a2b; --card2:#0f1626;
  --border:#1e293b; --border2:#273449;
  --txt:#eef2f8; --muted:#93a1b8; --muted2:#5f6f87;
  --accent:#f97316; --accent2:#fb923c;
  --cool:#22c55e; --warm:#f59e0b; --hot:#ef4444; --danger:#ef4444;
  --sidebar-w:248px;
}
*{box-sizing:border-box}

/* ── LOGIN (pagina centrata) ── */
.center{display:flex;align-items:center;justify-content:center;min-height:100vh;padding:20px}
.auth{width:100%;max-width:380px;text-align:center}
.auth .logo{font-size:46px;margin-bottom:6px}
.auth h1{margin:4px 0 2px;font-size:24px;letter-spacing:-.4px}
.stack{display:flex;flex-direction:column;gap:12px;margin-top:18px}
.code-input{text-align:center;font-size:28px;letter-spacing:12px;font-family:'SF Mono',Consolas,monospace}

/* ── scrollbar a tema ── */
*{scrollbar-width:thin;scrollbar-color:#2a3650 transparent}
::-webkit-scrollbar{width:11px;height:11px}
::-webkit-scrollbar-track{background:transparent}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#33405e,#222e44);border-radius:7px;border:2px solid transparent;background-clip:padding-box}
::-webkit-scrollbar-thumb:hover{background:linear-gradient(180deg,#445377,#2c3a55);background-clip:padding-box}
::-webkit-scrollbar-corner{background:transparent}
html,body{margin:0;padding:0;height:100%}
body{
  background:var(--bg); color:var(--txt);
  font-family:-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
  -webkit-font-smoothing:antialiased;
}
.muted{color:var(--muted)} .small{font-size:13px} .tiny{font-size:11.5px}
.hidden{display:none!important}
.ellipsis{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:140px;display:inline-block}

/* ░░ LAYOUT ░░ */
.app{display:flex;min-height:100vh}
.main{flex:1;min-width:0;display:flex;flex-direction:column}

/* ░░ SIDEBAR ░░ */
.sidebar{
  width:var(--sidebar-w);flex-shrink:0;background:linear-gradient(180deg,#0e1424,#0a0e16);
  border-right:1px solid var(--border);display:flex;flex-direction:column;
  position:sticky;top:0;height:100vh;z-index:30;
}
.side-head{display:flex;align-items:center;gap:10px;padding:20px 18px 16px}
.logo-sm{font-size:22px}
.side-title{font-weight:700;font-size:16px;letter-spacing:-.2px}
.side-close{display:none;margin-left:auto;background:none;border:none;color:var(--muted);font-size:18px;cursor:pointer}
.side-nav{display:flex;flex-direction:column;gap:3px;padding:8px 12px;flex:1}
.nav-item{
  display:flex;align-items:center;gap:12px;width:100%;text-align:left;
  background:none;border:none;color:var(--muted);font-size:14px;font-weight:500;
  padding:11px 12px;border-radius:11px;cursor:pointer;transition:.15s;font-family:inherit;
}
.nav-item:hover{background:#16203400;background:rgba(255,255,255,.04);color:var(--txt)}
.nav-item.active{background:linear-gradient(135deg,rgba(249,115,22,.22),rgba(251,146,60,.18));color:#fff;box-shadow:inset 0 0 0 1px rgba(249,115,22,.35)}
.nav-item .ni{font-size:16px;width:22px;text-align:center;color:#fff}
.nav-badge{margin-left:auto;background:var(--hot);color:#fff;font-size:11px;font-weight:700;min-width:20px;height:20px;border-radius:10px;display:none;align-items:center;justify-content:center;padding:0 6px}
.nav-badge.show{display:flex}
.nav-sep{height:1px;background:var(--border);margin:10px 8px}
.side-foot{padding:14px;border-top:1px solid var(--border)}
.user-chip{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avatar{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent2));display:flex;align-items:center;justify-content:center;font-weight:700;color:#fff}
.user-meta{display:flex;flex-direction:column;font-size:13px;min-width:0}
.scrim{display:none;position:fixed;inset:0;background:rgba(0,0,0,.5);z-index:25}

/* ░░ TOPBAR ░░ */
.topbar{
  display:flex;align-items:center;gap:14px;padding:16px 26px;
  border-bottom:1px solid var(--border);position:sticky;top:0;
  background:rgba(10,14,22,.85);backdrop-filter:blur(12px);z-index:10;
}
.topbar h1{margin:0;font-size:19px;font-weight:700;letter-spacing:-.3px}
.topbar-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.burger{display:none;background:none;border:none;color:var(--txt);font-size:20px;cursor:pointer}
.status-dot{display:flex;align-items:center;gap:7px}
.status-dot i{width:9px;height:9px;border-radius:50%;background:var(--cool);box-shadow:0 0 0 3px rgba(34,197,94,.18)}
.status-dot.off i{background:var(--danger);box-shadow:0 0 0 3px rgba(239,68,68,.18)}

/* ░░ CONTENT ░░ */
.content{padding:24px 26px 40px;max-width:1240px;width:100%}
.view{display:none;animation:fade .25s ease}
.view.active{display:block}
@keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

/* ░░ CARDS ░░ */
.card{background:linear-gradient(180deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:16px;padding:20px}
.card-head{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin-bottom:16px}
.card-head h2{margin:0;font-size:15px;font-weight:600}
.cols{display:grid;grid-template-columns:1.55fr 1fr;gap:18px;align-items:start}
.grow{min-width:0}
.narrow{max-width:520px}
@media(max-width:900px){.cols{grid-template-columns:1fr}}

/* ░░ KPI ░░ */
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
@media(max-width:900px){.kpi-grid{grid-template-columns:repeat(2,1fr)}}
.kpi{background:linear-gradient(180deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:16px;padding:16px 18px;position:relative;overflow:hidden}
.kpi-top{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px;font-weight:500}
.kpi-ico{font-size:15px}
.kpi-val{font-size:32px;font-weight:800;letter-spacing:-1px;margin:6px 0 4px;font-variant-numeric:tabular-nums}
.kpi-val small{font-size:14px;font-weight:600;color:var(--muted);margin-left:3px}
.kpi.warm{box-shadow:inset 0 0 0 1px rgba(245,158,11,.4)} .kpi.warm .kpi-val{color:var(--warm)}
.kpi.hot{box-shadow:inset 0 0 0 1px rgba(239,68,68,.5)} .kpi.hot .kpi-val{color:var(--hot)}
.spark{height:34px;margin:-4px -4px 0}
.bar-track{height:7px;background:#0a0e16;border-radius:4px;overflow:hidden;margin-top:8px}
.bar-fill{height:100%;width:0;border-radius:4px;background:linear-gradient(90deg,var(--accent),var(--accent2));transition:width .4s}

/* ░░ CHARTS ░░ */
.chart-box{position:relative;height:260px}
.watch .chart-box{height:auto}

/* ░░ READINGS / TABLES ░░ */
.readings{display:flex;flex-direction:column;gap:14px;max-height:560px;overflow:auto}
.hw-group{}
.hw-title{font-size:11px;text-transform:uppercase;letter-spacing:1.5px;color:var(--muted2);margin:0 0 8px;font-weight:700}
.row{display:grid;grid-template-columns:1fr auto;gap:4px 12px;align-items:center;padding:10px 12px;background:#0a0e16;border:1px solid var(--border);border-radius:11px;margin-bottom:7px}
.row .r-name{font-size:13.5px;font-weight:500}
.row .r-val{font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;text-align:right}
.row .r-bar{grid-column:1/3;height:6px;background:#060a12;border-radius:3px;overflow:hidden;margin-top:3px}
.row .r-bar i{display:block;height:100%;border-radius:3px;transition:width .4s}
.r-bar i.cool{background:var(--cool)} .r-bar i.warm{background:var(--warm)} .r-bar i.hot{background:var(--hot)}
.r-bar i.neutral{background:linear-gradient(90deg,var(--accent),var(--accent2))}
.r-val.cool{color:var(--cool)} .r-val.warm{color:var(--warm)} .r-val.hot{color:var(--hot)}

/* ░░ WATCH LIST ░░ */
.watch-list{display:flex;flex-direction:column;gap:10px}
.watch-item{display:grid;grid-template-columns:auto 1fr auto;gap:4px 12px;align-items:center;padding:11px 13px;border-radius:12px;background:#0a0e16;border:1px solid var(--border)}
.watch-item.hot{box-shadow:inset 0 0 0 1px rgba(239,68,68,.45);background:rgba(239,68,68,.06)}
.watch-item.warm{box-shadow:inset 0 0 0 1px rgba(245,158,11,.4);background:rgba(245,158,11,.05)}
.w-dot{width:10px;height:10px;border-radius:50%}
.w-dot.hot{background:var(--hot);box-shadow:0 0 8px var(--hot)} .w-dot.warm{background:var(--warm)}
.w-name{font-size:13.5px;font-weight:600;min-width:0}
.w-name small{display:block;font-weight:400;color:var(--muted2);font-size:11px}
.w-val{font-size:18px;font-weight:800;font-variant-numeric:tabular-nums}
.w-val.hot{color:var(--hot)} .w-val.warm{color:var(--warm)}
.w-bar{grid-column:1/4;height:6px;background:#060a12;border-radius:3px;overflow:hidden;margin-top:2px}
.w-bar i{display:block;height:100%;border-radius:3px}
.watch-ok{text-align:center;padding:30px 10px;color:var(--cool)}
.watch-ok .big-ico{font-size:40px;display:block;margin-bottom:8px}

/* ░░ BUTTONS / FORM ░░ */
.btn{border:none;border-radius:12px;padding:12px 18px;font-size:14px;font-weight:600;cursor:pointer;transition:transform .06s,filter .15s,opacity .15s;font-family:inherit;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}
a.btn,a.btn:hover,a.btn:visited{text-decoration:none}
.btn:active{transform:translateY(1px)} .btn:disabled{opacity:.6;cursor:default}
.btn.primary{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff;box-shadow:0 8px 22px rgba(249,115,22,.3)}
.btn.danger{background:linear-gradient(135deg,#f43f5e,#ef4444);color:#fff;box-shadow:0 8px 22px rgba(239,68,68,.28)}
.btn.ghost{background:transparent;border:1px solid var(--border2);color:var(--muted)} .btn.ghost:hover{color:var(--txt)}
.btn.full{width:100%} .btn.big{padding:15px;font-size:15px;margin-top:8px}
.field{display:flex;flex-direction:column;gap:6px;margin:16px 0}
input[type=time]{background:#0a0e16;border:1px solid var(--border2);color:var(--txt);border-radius:11px;padding:12px 14px;font-size:15px;outline:none}
input[type=time]:focus{border-color:var(--accent)}
.switch-row{display:flex;align-items:center;justify-content:space-between;padding:8px 0}
.switch{position:relative;display:inline-block;width:46px;height:26px}
.switch input{opacity:0;width:0;height:0}
.slider{position:absolute;inset:0;background:#334155;border-radius:26px;transition:.2s;cursor:pointer}
.slider:before{content:"";position:absolute;height:20px;width:20px;left:3px;top:3px;background:#fff;border-radius:50%;transition:.2s}
.switch input:checked + .slider{background:linear-gradient(135deg,var(--accent),var(--accent2))}
.switch input:checked + .slider:before{transform:translateX(20px)}

/* ░░ MODAL ░░ */
.modal-bg{position:fixed;inset:0;background:rgba(2,6,16,.72);backdrop-filter:blur(4px);display:flex;align-items:center;justify-content:center;padding:20px;z-index:50}
.modal{max-width:380px;width:100%;text-align:center}
.modal-icon{font-size:44px;margin-bottom:6px}
.modal h2{margin:4px 0 8px}
.modal-actions{display:flex;gap:10px;margin-top:20px}
.modal-actions .btn{flex:1}

/* ░░ USER MENU / DROPDOWN ░░ */
.usermenu{position:relative}
.user-btn{display:flex;align-items:center;gap:8px;background:rgba(255,255,255,.04);border:1px solid var(--border);border-radius:12px;padding:5px 10px 5px 5px;cursor:pointer;color:var(--txt);font-family:inherit}
.user-btn:hover{background:rgba(255,255,255,.08)}
.avatar-img{width:30px;height:30px;border-radius:8px;object-fit:cover;background:#1e293b;display:block}
.avatar-img.lg{width:44px;height:44px;border-radius:11px}
.user-btn-name{font-size:13.5px;font-weight:600;max-width:130px}
.caret{color:var(--muted);font-size:11px}
.dropdown{position:absolute;right:0;top:calc(100% + 8px);width:256px;background:var(--card);border:1px solid var(--border2);border-radius:14px;box-shadow:0 18px 44px rgba(0,0,0,.55);padding:12px;z-index:40}
.dd-head{display:flex;gap:11px;align-items:center}
.dd-info{min-width:0}
.dd-name{font-weight:600;font-size:14px}
.dd-sep{height:1px;background:var(--border);margin:12px 0}
.dd-item{display:flex;align-items:center;gap:10px;width:100%;text-align:left;background:none;border:none;color:var(--txt);font-size:14px;padding:11px;border-radius:10px;cursor:pointer;font-family:inherit;text-decoration:none}
.dd-item i{width:18px;text-align:center;color:var(--muted)}
.dd-item:hover{background:rgba(255,255,255,.06);color:#fff}
.dd-item.dd-danger:hover{background:rgba(239,68,68,.12);color:#fca5a5}
.dd-item.dd-danger:hover i{color:#fca5a5}
.role-chip{display:inline-block;margin-top:6px;font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.5px;padding:3px 8px;border-radius:6px;background:rgba(249,115,22,.18);color:#fdba74}
.role-chip.viewer{background:rgba(34,197,94,.15);color:#86efac}

/* generic inputs */
input[type=text],input[type=email],input[type=time],input:not([type]){background:#0a0e16;border:1px solid var(--border2);color:var(--txt);border-radius:11px;padding:12px 14px;font-size:15px;outline:none;width:100%;font-family:inherit}
input::placeholder{color:var(--muted2)}
input:focus{border-color:var(--accent)}

/* invite form */
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:14px 0}
.form-grid .span2{grid-column:1/3}
.msg{margin-top:12px;font-size:13px;min-height:18px}
.msg.err{color:var(--danger)} .msg.ok{color:var(--cool)}

/* users table */
.users-table{display:flex;flex-direction:column;gap:9px}
.utrow{display:grid;grid-template-columns:40px 1fr auto auto;gap:12px;align-items:center;padding:11px 13px;background:#0a0e16;border:1px solid var(--border);border-radius:12px}
.ut-av{width:40px;height:40px;border-radius:10px}
.ut-meta{min-width:0}
.ut-name{font-size:14px;font-weight:600}
.ut-mail{font-size:12px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.ut-badge{font-size:10.5px;font-weight:700;text-transform:uppercase;letter-spacing:.4px;padding:4px 8px;border-radius:6px;white-space:nowrap}
.ut-badge.owner{background:rgba(249,115,22,.18);color:#fdba74}
.ut-badge.user{background:rgba(34,197,94,.15);color:#86efac}
.ut-badge.invited{background:rgba(245,158,11,.15);color:#fcd34d}
.ut-revoke{background:rgba(239,68,68,.12);border:1px solid rgba(239,68,68,.3);color:#fca5a5;border-radius:9px;padding:8px 11px;cursor:pointer;font-size:12px;font-family:inherit}
.ut-revoke:hover{background:rgba(239,68,68,.2)}

/* role gating: tecnici (viewer) non vedono le sezioni Owner */
body.viewer .owner-only{display:none!important}

/* ░░ MULTI-PC ░░ */
.row-between{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;flex-wrap:wrap}
.device-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:16px}
.device-card{background:linear-gradient(180deg,var(--card),var(--card2));border:1px solid var(--border);border-radius:16px;padding:18px;cursor:pointer;transition:.15s}
.device-card:hover{border-color:var(--border2);transform:translateY(-2px)}
.dc-head{display:flex;align-items:center;gap:9px;margin-bottom:14px}
.dc-name{font-weight:600;font-size:15px;flex:1;min-width:0}
.dc-owner{font-size:11px;color:var(--muted2);max-width:110px}
.dc-stats{display:flex;gap:10px}
.dc-stat{flex:1;background:#0a0e16;border:1px solid var(--border);border-radius:10px;padding:9px;text-align:center}
.dc-stat span{display:block;font-size:18px;font-weight:800;font-variant-numeric:tabular-nums}
.dc-stat small{font-size:10px;color:var(--muted2);text-transform:uppercase;letter-spacing:1px}
.dc-stat .cool{color:var(--cool)} .dc-stat .warm{color:var(--warm)} .dc-stat .hot{color:var(--hot)} .dc-stat .neutral{color:var(--muted)}
.empty{grid-column:1/-1;text-align:center;color:var(--muted);padding:50px 16px}
.empty .big-ico{font-size:48px;display:block;margin-bottom:12px}

/* app usage */
.app-list{display:flex;flex-direction:column;gap:9px;max-height:560px;overflow:auto}
.app-row{display:grid;grid-template-columns:1fr 2fr auto;gap:12px;align-items:center}
.app-name{font-size:13.5px;font-weight:500}
.app-bar{height:9px;background:#0a0e16;border-radius:5px;overflow:hidden}
.app-bar i{display:block;height:100%;border-radius:5px;background:linear-gradient(90deg,var(--accent),var(--accent2))}
.app-time{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;white-space:nowrap}
.seg{display:flex;gap:4px;background:#0a0e16;border:1px solid var(--border);border-radius:10px;padding:3px;flex-wrap:wrap}
.seg button{background:none;border:none;color:var(--muted);font-size:12.5px;font-weight:600;padding:6px 12px;border-radius:7px;cursor:pointer;font-family:inherit}
.seg button.active{background:linear-gradient(135deg,var(--accent),var(--accent2));color:#fff}

/* code block */
.code-block{background:#0a0e16;border:1px solid var(--border2);border-radius:10px;padding:12px;font-family:'SF Mono',Consolas,monospace;font-size:12px;color:#fdba74;white-space:pre-wrap;word-break:break-all;margin:12px 0}

/* utenti: riga larga con toggle */
.utrow-wide{grid-template-columns:40px 1fr auto auto auto auto auto;gap:10px}
.mini-toggle{display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10px;color:var(--muted);cursor:pointer}
.mini-toggle input{width:32px;height:18px;appearance:none;background:#334155;border-radius:10px;position:relative;cursor:pointer;transition:.2s;outline:none}
.mini-toggle input:checked{background:linear-gradient(135deg,var(--accent),var(--accent2))}
.mini-toggle input:disabled{opacity:.4;cursor:default}
.mini-toggle input::after{content:"";position:absolute;width:14px;height:14px;background:#fff;border-radius:50%;top:2px;left:2px;transition:.2s}
.mini-toggle input:checked::after{transform:translateX(14px)}
.access-list{display:flex;flex-direction:column;gap:8px;max-height:300px;overflow:auto;margin:14px 0;text-align:left}
.access-item{display:flex;align-items:center;gap:10px;background:#0a0e16;border:1px solid var(--border);border-radius:10px;padding:10px 12px;cursor:pointer}
.access-item input{width:18px;height:18px;accent-color:var(--accent)}

/* ░░ RESPONSIVE / MOBILE ░░ */
@media(max-width:820px){
  .sidebar{position:fixed;left:0;top:0;width:280px;transform:translateX(-100%);transition:transform .25s;box-shadow:0 0 40px rgba(0,0,0,.5)}
  .sidebar.open{transform:none}
  .side-close{display:block}
  .burger{display:block;font-size:24px}
  .scrim.show{display:block}
  .content{padding:18px 15px 48px}
  .topbar{padding:15px 16px}
  .topbar h1{font-size:21px}
  .ellipsis{max-width:170px}

  /* menu più grande e comodo da toccare */
  .side-nav{padding:10px 12px;gap:5px}
  .nav-item{font-size:16px;padding:14px 14px;border-radius:13px}
  .nav-item .ni{font-size:19px;width:24px}
  .side-title{font-size:18px}

  /* KPI: 2 colonne, numeri grandi */
  .kpi-grid{gap:13px;margin-bottom:16px}
  .kpi{padding:16px 16px}
  .kpi-top{font-size:14px}
  .kpi-val{font-size:38px}
  .kpi-val small{font-size:16px}
  .spark{height:38px}

  /* card e titoli */
  .cols{gap:14px}
  .card{padding:18px 16px;border-radius:18px}
  .card-head h2{font-size:17px}
  .chart-box{height:240px}

  /* tabelle più leggibili */
  .readings{max-height:none}
  .hw-title{font-size:12px}
  .row{padding:13px 14px;border-radius:13px;margin-bottom:9px}
  .row .r-name{font-size:15.5px}
  .row .r-val{font-size:18px}
  .row .r-bar{height:7px}

  /* watch list più grande */
  .watch-item{padding:14px 15px;border-radius:14px}
  .w-name{font-size:15.5px}
  .w-name small{font-size:12.5px}
  .w-val{font-size:24px}
  .w-dot{width:12px;height:12px}

  /* form / bottoni */
  .btn{padding:14px 18px;font-size:15.5px}
  .btn.big{padding:17px;font-size:16.5px}
  input[type=time]{font-size:16px;padding:14px}
  .switch-row{font-size:16px;padding:10px 0}

  /* user menu compatto: solo avatar */
  .user-btn-name,.caret{display:none}
  .user-btn{padding:4px}
  .avatar-img{width:34px;height:34px}
  #statusTxt{display:none}
  .dropdown{width:240px}
  .form-grid{grid-template-columns:1fr}
  .form-grid .span2{grid-column:1}
  .utrow{grid-template-columns:38px 1fr auto;gap:10px}
  .utrow .ut-badge.invited{display:none}
}

@media(max-width:380px){
  .kpi-grid{grid-template-columns:1fr}
  .kpi-val{font-size:42px}
}