:root {
    --ink: #16232B;
    --ink-soft: #5C6E78;
    --paper: #F4F6F7;
    --card: #FFFFFF;
    --line: #E2E8EB;
    --petrol: #0F5E68;
    --petrol-deep: #0A454C;
    --petrol-tint: #EAF3F4;
    --up: #1B7A43;
    --warn: #955C09;
    --down: #C2382F;
    --unknown: #7E8E96;
    --radius: 14px;
    --radius-s: 9px;
    --mono: 'IBM Plex Mono', monospace;
    --shadow-1: 0 1px 2px rgba(22,35,43,.05), 0 4px 16px rgba(22,35,43,.05);
    --shadow-2: 0 2px 4px rgba(22,35,43,.06), 0 12px 32px rgba(22,35,43,.09);
    --tap: 44px;
  }
  * { margin: 0; padding: 0; box-sizing: border-box; }
  html, body { height: 100%; }
  body {
    font-family: 'IBM Plex Sans', sans-serif;
    background: var(--paper); color: var(--ink);
    font-size: 15px; line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }
  h1, h2, h3, .brand { font-family: 'Space Grotesk', sans-serif; letter-spacing: -0.02em; }

  /* ---------- shell ---------- */
  .shell { display: flex; min-height: 100vh; min-height: 100dvh; }
  .side {
    width: 224px; flex-shrink: 0; position: sticky; top: 0; height: 100vh; height: 100dvh;
    background: var(--card); border-right: 1px solid var(--line);
    padding: 26px 14px; display: flex; flex-direction: column; gap: 4px;
  }
  .brand { font-size: 23px; font-weight: 700; margin-bottom: 26px; padding-left: 12px; }
  .brand .dot { color: var(--petrol); }
  .nav-item {
    display: flex; align-items: center; gap: 10px; width: 100%; text-align: left;
    border: 0; background: none; font: inherit; font-size: 14.5px;
    color: var(--ink-soft); padding: 10px 12px; min-height: var(--tap);
    border-radius: var(--radius-s); cursor: pointer;
    transition: background .15s, color .15s;
  }
  .nav-item svg { width: 18px; height: 18px; flex-shrink: 0; stroke: currentColor; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
  .nav-item:hover { background: var(--paper); color: var(--ink); }
  .nav-item.active { background: var(--petrol); color: #fff; font-weight: 500; box-shadow: var(--shadow-1); }
  .side .spacer { flex: 1; }
  .side .who { font-size: 12.5px; color: var(--ink-soft); padding: 0 12px 8px; word-break: break-all; }

  .main { flex: 1; padding: 34px 42px 48px; }
  .main h1 { font-size: 27px; font-weight: 700; }
  .main .sub { color: var(--ink-soft); margin: 4px 0 22px; }

  /* ---------- componenti ---------- */
  .card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); box-shadow: var(--shadow-1); }
  .btn {
    font: inherit; font-weight: 500; border: 0; border-radius: var(--radius-s); cursor: pointer;
    padding: 10px 18px; min-height: var(--tap); background: var(--petrol); color: #fff;
    transition: background .15s, border-color .15s, box-shadow .15s, transform .05s;
    display: inline-flex; align-items: center; justify-content: center;
  }
  .btn:hover { background: var(--petrol-deep); box-shadow: var(--shadow-1); }
  .btn:active { transform: translateY(1px); }
  .btn.ghost { background: none; color: var(--petrol); border: 1px solid var(--line); }
  .btn.ghost:hover { border-color: var(--petrol); background: var(--petrol-tint); box-shadow: none; }
  .btn.danger { background: none; color: var(--down); border: 1px solid var(--line); }
  .btn.danger:hover { border-color: var(--down); background: #FBF0EF; box-shadow: none; }
  .btn:focus-visible, .nav-item:focus-visible, input:focus-visible, select:focus-visible, a:focus-visible {
    outline: 2px solid var(--petrol); outline-offset: 2px;
  }
  /* ---------- dropdown (es. "Esporta dati" con scelta formato) ---------- */
  .dropdown { position: relative; display: inline-block; }
  .dropdown .caret { font-size: 10px; margin-left: 7px; }
  .dropdown-menu {
    position: absolute; top: calc(100% + 6px); right: 0; min-width: 130px;
    background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-s);
    box-shadow: var(--shadow-2); padding: 6px; z-index: 30;
    display: none; flex-direction: column; gap: 2px;
  }
  .dropdown-menu.open { display: flex; }
  .dropdown-menu button {
    font: inherit; text-align: left; background: none; border: 0; cursor: pointer;
    padding: 8px 10px; border-radius: 6px; color: var(--ink);
  }
  .dropdown-menu button:hover, .dropdown-menu button:focus-visible { background: var(--petrol-tint); outline: none; }
  input, select {
    font: inherit; padding: 10px 13px; min-height: var(--tap);
    border: 1px solid var(--line); border-radius: var(--radius-s);
    background: #fff; color: var(--ink); width: 100%;
    transition: border-color .15s, box-shadow .15s;
  }
  input:focus, select:focus { border-color: var(--petrol); box-shadow: 0 0 0 3px rgba(15,94,104,.12); outline: none; }
  label { display: block; font-size: 13px; font-weight: 600; color: var(--ink-soft); margin: 14px 0 6px; }
  .row { display: flex; gap: 14px; }
  .row > * { flex: 1; }
  .muted { color: var(--ink-soft); font-size: 13px; }
  .mono { font-family: var(--mono); font-size: 13px; }
  .error-box {
    background: #FBEDEC; border: 1px solid #EFC7C4; color: var(--down);
    border-radius: var(--radius-s); padding: 10px 14px; margin-top: 14px; font-size: 14px; display: none;
  }

  /* ---------- login ---------- */
  .login-wrap { min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; padding: 24px;
    background: linear-gradient(160deg, var(--paper) 55%, var(--petrol-tint)); }
  .login-card { width: 100%; max-width: 410px; padding: 38px 34px; box-shadow: var(--shadow-2); }
  .login-card .brand { font-size: 30px; margin-bottom: 4px; padding: 0; }
  .login-card .tag { color: var(--ink-soft); margin-bottom: 18px; }
  .switch-auth { margin-top: 18px; font-size: 14px; color: var(--ink-soft); }
  .switch-auth a { color: var(--petrol); cursor: pointer; text-decoration: underline; }

  /* ---------- situazione (firma del pannello) ---------- */
  .situation {
    display: flex; align-items: center; gap: 15px;
    padding: 19px 22px; border-radius: var(--radius); margin-bottom: 16px;
    border: 1px solid; box-shadow: var(--shadow-1); animation: rise .3s ease both;
  }
  .situation.calm  { background: #EAF4EF; border-color: #CBE6D6; }
  .situation.alarm { background: #FBEDEC; border-color: #F0CBC8; }
  .situation.warn  { background: #FBF1E1; border-color: #EFDBB3; }
  .situation .sig-dot { width: 13px; height: 13px; border-radius: 50%; flex-shrink: 0; }
  .situation.calm .sig-dot  { background: var(--up); box-shadow: 0 0 0 5px rgba(30,138,76,.14); }
  .situation.alarm .sig-dot { background: var(--down); box-shadow: 0 0 0 5px rgba(194,56,47,.16); animation: pulse 1.6s infinite; }
  .situation.warn .sig-dot  { background: var(--warn); box-shadow: 0 0 0 5px rgba(149,92,9,.14); }
  .situation .headline { font-family: 'Space Grotesk', sans-serif; font-weight: 700; font-size: 17px; }
  .situation .detail { color: var(--ink-soft); font-size: 13px; margin-top: 1px; }

  .stats { display: flex; gap: 10px; margin-bottom: 20px; flex-wrap: wrap; }
  .stat { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-s); padding: 9px 15px; box-shadow: var(--shadow-1); }
  .stat b { font-family: var(--mono); font-size: 17px; font-weight: 500; display: block; }
  .stat span { font-size: 12px; color: var(--ink-soft); }
  .stat.warn b { color: var(--warn); }

  /* ---------- lista siti ---------- */
  /* padding-right: lascia libero l'angolo dove .lang-switch resta sempre
     fissa (position:fixed, non segue la larghezza di .main). */
  .toolbar { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 16px; padding-right: 120px; }
  .site-row {
    display: grid; grid-template-columns: 14px 1.4fr 1fr 130px 96px auto;
    gap: 16px; align-items: center; padding: 17px 22px; border-bottom: 1px solid var(--line);
    transition: background .15s; animation: rise .25s ease both;
  }
  .site-row:hover { background: #FAFCFC; }
  .site-row:last-child { border-bottom: 0; }
  .state-dot { width: 10px; height: 10px; border-radius: 50%; }
  .state-up .state-dot { background: var(--up); box-shadow: 0 0 0 4px rgba(30,138,76,.12); }
  .state-down .state-dot { background: var(--down); box-shadow: 0 0 0 4px rgba(194,56,47,.14); animation: pulse 1.6s infinite; }
  .state-degraded .state-dot { background: var(--warn); box-shadow: 0 0 0 4px rgba(199,126,19,.14); }
  .state-unknown .state-dot { background: var(--unknown); }
  @keyframes pulse { 50% { box-shadow: 0 0 0 7px rgba(194,56,47,.08); } }
  .site-name { font-weight: 600; }
  .site-url { display: block; font-size: 13px; color: var(--ink-soft); text-decoration: none; }
  .site-url:hover { color: var(--petrol); }

  .heartbeat { display: flex; gap: 2px; align-items: flex-end; height: 28px; }
  .heartbeat span { width: 4px; border-radius: 1px; background: var(--up); opacity: .85;
                    transition: transform .12s; transform-origin: bottom; }
  .heartbeat span:hover { transform: scaleY(1.18); }
  .heartbeat span.ko { background: var(--down); height: 100% !important; }
  .heartbeat span.empty { background: var(--line); height: 30%; }

  .uptime { font-family: var(--mono); font-size: 14px; text-align: right; }
  .ssl-chip { display: inline-block; max-width: 100%; font-size: 12px; border-radius: 999px; padding: 3px 9px;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis; vertical-align: middle; box-sizing: border-box; }
  .ssl-ok   { background: #E9F4EE; color: var(--up); }
  .ssl-warn { background: #FBF1E1; color: var(--warn); }
  .ssl-error { background: #FBEDEC; color: var(--down); }
  .ssl-neutral { background: var(--paper); color: var(--ink-soft); border: 1px solid var(--line); }
  .empty-state { padding: 60px 24px; text-align: center; }
  .empty-state h3 { margin-bottom: 6px; font-size: 18px; }

  /* ---------- pannelli / canali / branding ---------- */
  .panel { padding: 26px; margin-bottom: 20px; }
  .panel h2 { font-size: 18px; margin-bottom: 4px; }
  .panel .hint { color: var(--ink-soft); font-size: 13px; margin-bottom: 8px; }
  .actions { margin-top: 22px; display: flex; gap: 10px; }
  .chan-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 13px 0; border-bottom: 1px solid var(--line); }
  .chan-row:last-child { border-bottom: 0; }

  .preview { border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; margin-top: 18px; box-shadow: var(--shadow-1); }
  .preview-bar { padding: 14px 18px; color: #fff; font-family: 'Space Grotesk', sans-serif; font-weight: 700; }
  .preview-body { background: #fff; padding: 18px; }
  .preview-site { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--line); font-size: 14px; }
  .preview-ok { font-weight: 600; }
  .preview-footer { padding: 10px 18px; font-size: 12px; color: var(--ink-soft); background: var(--paper); }

  /* ---------- skeleton / toast ---------- */
  @keyframes shimmer { to { background-position: -200% 0; } }
  .skel { border-radius: 6px; background: linear-gradient(90deg, var(--line) 25%, #EFF2F3 50%, var(--line) 75%);
          background-size: 200% 100%; animation: shimmer 1.1s linear infinite; }
  .skel-row { display: flex; gap: 16px; align-items: center; padding: 18px 22px; border-bottom: 1px solid var(--line); }
  .toast {
    position: fixed; bottom: 24px; left: 50%; transform: translate(-50%, 8px);
    background: var(--ink); color: #fff; padding: 11px 20px; border-radius: 999px;
    font-size: 14px; opacity: 0; pointer-events: none; box-shadow: var(--shadow-2);
    transition: opacity .22s, transform .22s; z-index: 50;
  }
  .toast.show { opacity: 1; transform: translate(-50%, 0); }
  @keyframes rise { from { opacity: 0; transform: translateY(4px); } }


  /* ---------- dettaglio sito ---------- */
  .back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-soft);
               background: none; border: 0; font: inherit; font-size: 14px; cursor: pointer;
               padding: 6px 0; margin-bottom: 8px; }
  .back-link:hover { color: var(--petrol); }
  .detail-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 14px; margin-bottom: 18px; }
  .state-chip { display: inline-flex; align-items: center; gap: 7px; font-size: 13px; font-weight: 600;
                border-radius: 999px; padding: 5px 12px; }
  .state-chip i { width: 8px; height: 8px; border-radius: 50%; }
  .state-chip.up { background: #E9F4EE; color: var(--up); } .state-chip.up i { background: var(--up); }
  .state-chip.down { background: #FBEDEC; color: var(--down); } .state-chip.down i { background: var(--down); }
  .state-chip.degraded { background: #FBF1E1; color: var(--warn); } .state-chip.degraded i { background: var(--warn); }
  .state-chip.unknown { background: #EEF1F2; color: var(--ink-soft); } .state-chip.unknown i { background: var(--unknown); }

  .chart-wrap { padding: 22px 22px 12px; }
  .chart-wrap h2 { font-size: 16px; margin-bottom: 2px; }
  .chart-svg { width: 100%; height: auto; display: block; margin-top: 10px; }
  .chart-legend { display: flex; gap: 16px; font-size: 12px; color: var(--ink-soft); padding: 8px 2px 6px; }
  .chart-legend i { display: inline-block; width: 9px; height: 9px; border-radius: 2px; margin-right: 5px; vertical-align: -1px; }

  .log-row { display: grid; grid-template-columns: 84px 64px 1fr 90px; gap: 12px;
             padding: 10px 22px; border-bottom: 1px solid var(--line); font-size: 13.5px; align-items: baseline; }
  .log-row:last-child { border-bottom: 0; }
  .log-row .t { font-family: var(--mono); color: var(--ink-soft); font-size: 12.5px; }
  .log-row .loc { font-family: var(--mono); font-size: 12.5px; }
  .log-ok { color: var(--up); font-weight: 600; }
  .log-ko { color: var(--down); font-weight: 600; }
  .log-lat { font-family: var(--mono); text-align: right; }

  /* ---------- consensi legali ---------- */
  .consent { display: flex; gap: 10px; align-items: flex-start; margin-top: 14px; }
  /* Checkbox coerenti ovunque: niente larghezza piena né bordi da campo testo */
  input[type=checkbox] { width: 18px; height: 18px; min-height: 0; padding: 0; margin-top: 2px;
    flex-shrink: 0; accent-color: var(--petrol); border: 0; box-shadow: none; }
  label.chk { display: flex; gap: 10px; align-items: flex-start; cursor: pointer;
    font-size: 14px; margin: 10px 0; font-weight: 400; color: var(--ink); }
  .consent label { margin: 0; font-weight: 400; font-size: 13.5px; color: var(--ink-soft); line-height: 1.45; }
  .consent a { color: var(--petrol); }
  .consent.optional { margin-top: 10px; padding-top: 10px; border-top: 1px dashed var(--line); }

  /* ---------- selettore lingua ---------- */
  .lang-switch { position: fixed; top: 14px; right: 16px; z-index: 45; display: flex;
                 background: var(--card); border: 1px solid var(--line); border-radius: 999px;
                 padding: 3px; box-shadow: var(--sh1, var(--shadow-1)); }
  .lang-switch button { font: inherit; font-size: 12px; font-weight: 600; border: 0; background: none;
                        color: var(--ink-soft); padding: 5px 11px; border-radius: 999px; cursor: pointer; }
  .lang-switch button.on { background: var(--petrol); color: #fff; }

  /* ---------- mobile: app con barra in basso ---------- */
  @media (max-width: 760px) {
    body { font-size: 15.5px; }
    .shell { flex-direction: column; }
    .side {
      position: fixed; left: 0; right: 0; bottom: 0; top: auto; height: auto; width: 100%;
      flex-direction: row; align-items: stretch; gap: 0; padding: 6px 8px;
      padding-bottom: calc(6px + env(safe-area-inset-bottom));
      border-right: 0; border-top: 1px solid var(--line);
      background: rgba(255,255,255,.92); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
      box-shadow: 0 -4px 20px rgba(22,35,43,.08); z-index: 40;
    }
    .brand, .side .spacer, .side .who { display: none; }
    .nav-item {
      flex: 1; flex-direction: column; gap: 3px; justify-content: center;
      font-size: 10.5px; padding: 6px 2px; min-height: 52px; text-align: center;
    }
    .nav-item svg { width: 21px; height: 21px; }
    .nav-item.active { background: var(--petrol-tint); color: var(--petrol); box-shadow: none; }
    .main { padding: 22px 16px calc(86px + env(safe-area-inset-bottom)); }
    .main h1 { font-size: 23px; }
    .toolbar { flex-direction: column; align-items: stretch; padding-right: 0; }
    .toolbar .btn { width: 100%; }
    .toolbar .dropdown { width: 100%; }
    .row { flex-direction: column; gap: 0; }
    .actions { flex-direction: column; }
    .actions .btn { width: 100%; }
    .stats { display: grid; grid-template-columns: 1fr 1fr; }

    /* righe -> card impilate, heartbeat protagonista */
    .site-row {
      grid-template-columns: 14px 1fr auto; grid-template-areas:
        "dot info del"
        "hb  hb  hb"
        "up  up  ssl";
      row-gap: 12px; padding: 16px;
    }
    .site-row .state-dot { grid-area: dot; margin-top: 5px; }
    .site-row > div:nth-child(2) { grid-area: info; }
    .heartbeat { grid-area: hb; height: 34px; }
    .heartbeat span { width: auto; flex: 1; }
    .site-row > div:nth-child(4) { grid-area: up; display: flex; gap: 10px; align-items: baseline; }
    .site-row .uptime { text-align: left; }
    .site-row > div:nth-child(5) { grid-area: ssl; text-align: right; }
    .site-row .btn.danger { grid-area: del; padding: 8px 12px; min-height: 38px; font-size: 13px; }
    .chan-row { flex-wrap: wrap; }
    .login-card { padding: 30px 22px; }
    .detail-head { flex-direction: column; }
    .log-row { grid-template-columns: 74px 1fr 70px; padding: 10px 14px; }
    .log-row .loc { display: none; }
  }

  @media (prefers-reduced-motion: reduce) {
    .situation, .site-row { animation: none; }
    .skel { animation: none; }
    .state-down .state-dot, .situation.alarm .sig-dot { animation: none; }
    .toast, .btn, .nav-item, .heartbeat span { transition: none; }
  }
  .btn.loading { position:relative; color:transparent !important; pointer-events:none; }
  .btn.loading::after { content:''; position:absolute; inset:0; margin:auto; width:16px; height:16px;
    border:2px solid rgba(255,255,255,.4); border-top-color:#fff; border-radius:50%; animation:spin .7s linear infinite; }
  .btn.ghost.loading::after { border-color:rgba(15,94,104,.3); border-top-color:var(--petrol); }
  @keyframes spin { to { transform:rotate(360deg); } }