*{margin:0;padding:0;box-sizing:border-box}


    body{background:var(--bg);color:var(--text);font-family:'Segoe UI',system-ui,sans-serif;min-height:100vh;transition:background .25s,color .25s}

    /* NAV */
    nav{background:var(--surface);border-bottom:1px solid var(--border);padding:0 24px;height:60px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:100}
    .logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:18px}
    .logo-icon{width:32px;height:32px;background:var(--green);border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px}
    .nav-tabs{display:flex;gap:4px}
    .nav-tab{padding:6px 16px;border-radius:8px;cursor:pointer;font-size:14px;color:var(--muted);border:none;background:none;transition:all .2s}
    .nav-tab:hover{background:var(--surface2);color:var(--text)}
    .nav-tab.active{background:var(--accent);color:white}
    .nav-right{display:flex;align-items:center;gap:12px;font-size:13px}
    .status-dot{width:8px;height:8px;border-radius:50%;background:var(--green);box-shadow:0 0 8px var(--green);animation:pulse 2s infinite}
    @keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
    .tag{display:inline-block;font-size:11px;padding:2px 8px;border-radius:20px;font-weight:600}
    .tag-green{background:rgba(34,197,94,.15);color:var(--green)}
    .tag-yellow{background:rgba(234,179,8,.15);color:var(--yellow)}
    .tag-red{background:rgba(239,68,68,.15);color:var(--red)}

    /* MAIN */
    main{padding:24px;max-width:1400px;margin:0 auto}
    .section{display:none}
    .section.active{display:block}

    /* API STATUS BAR */
    .api-bar{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 20px;margin-bottom:20px;display:flex;align-items:center;gap:12px;font-size:13px}
    .api-indicator{width:8px;height:8px;border-radius:50%;flex-shrink:0}
    .api-indicator.ok{background:var(--green);box-shadow:0 0 6px var(--green)}
    .api-indicator.error{background:var(--red);box-shadow:0 0 6px var(--red)}
    .api-indicator.loading{background:var(--yellow);animation:pulse 1s infinite}
    .api-btn{background:var(--accent);color:white;border:none;padding:6px 14px;border-radius:8px;cursor:pointer;font-size:12px;font-weight:600}
    .api-btn:hover{opacity:.85}
    .api-btn-demo{background:#15803d;color:white;border:none;padding:6px 14px;border-radius:8px;cursor:pointer;font-size:12px;font-weight:600}
    .api-btn-demo:hover{opacity:.85}

    /* POWER METER */
    .power-banner{background:linear-gradient(135deg,rgba(34,197,94,.1),rgba(59,130,246,.1));border:1px solid var(--border);border-radius:16px;padding:16px 24px;margin-bottom:20px;display:flex;align-items:center;justify-content:space-between}
    .power-main{display:flex;align-items:baseline;gap:8px}
    .power-value{font-size:48px;font-weight:800;color:var(--green);font-variant-numeric:tabular-nums;transition:all .4s}
    .power-unit{font-size:18px;color:var(--muted)}
    .power-label{font-size:13px;color:var(--muted)}
    .power-breakdown{display:flex;gap:24px}
    .power-item{text-align:center}
    .power-item-val{font-size:20px;font-weight:700}
    .power-item-lbl{font-size:11px;color:var(--muted)}

    /* CARDS */
    .cards-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}
    .card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px;transition:border-color .2s}
    .card:hover{border-color:var(--accent)}
    .card-header{display:flex;justify-content:space-between;align-items:flex-start;margin-bottom:12px}
    .card-label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
    .card-icon{font-size:20px}
    .card-value{font-size:32px;font-weight:700;line-height:1;transition:all .3s}
    .card-sub{font-size:12px;color:var(--muted);margin-top:6px}
    .card-trend{font-size:12px;margin-top:8px}
    .trend-down{color:var(--green)}
    .progress-bar{height:6px;background:var(--surface2);border-radius:3px;overflow:hidden;margin-top:10px}
    .progress-fill{height:100%;border-radius:3px;transition:width .5s ease}

    /* CHARTS */
    .charts-row{display:grid;grid-template-columns:2fr 1fr;gap:16px;margin-bottom:24px}
    .chart-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px}
    .chart-title{font-size:14px;font-weight:600;margin-bottom:4px}
    .chart-subtitle{font-size:12px;color:var(--muted);margin-bottom:16px}
    .chart-container{position:relative;height:220px}

    /* BOTTOM ROW */
    .bottom-row{display:grid;grid-template-columns:1fr 1fr 1fr;gap:16px}

    /* STANZE */
    .rooms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .room-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px}
    .room-header{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
    .room-name{font-size:15px;font-weight:600}
    .room-power{font-size:12px;color:var(--muted)}
    .room-power span{font-weight:700;transition:all .3s}
    .device-row{display:flex;justify-content:space-between;align-items:center;padding:8px 0;border-bottom:1px solid var(--border)}
    .device-row:last-child{border-bottom:none}
    .device-left{display:flex;align-items:center;gap:8px}
    .device-icon{font-size:16px}
    .device-info{display:flex;flex-direction:column}
    .device-name{font-size:13px;color:var(--text)}
    .device-watts{font-size:11px;color:var(--muted);transition:color .3s}
    .device-watts.active{color:var(--green)}

    /* TOGGLE */
    .toggle{width:40px;height:22px;border-radius:11px;border:none;cursor:pointer;position:relative;transition:background .3s;flex-shrink:0}
    .toggle.on{background:var(--green)}
    .toggle.off{background:var(--border)}
    .toggle::after{content:'';position:absolute;top:3px;width:16px;height:16px;border-radius:50%;background:white;transition:left .3s}
    .toggle.on::after{left:21px}
    .toggle.off::after{left:3px}
    .toggle:disabled{opacity:.5;cursor:not-allowed}

    /* TEMP */
    .temp-control{display:flex;align-items:center;gap:6px}
    .temp-btn{background:var(--surface2);border:none;color:var(--text);width:24px;height:24px;border-radius:6px;cursor:pointer;font-size:14px;font-weight:700}
    .temp-val{font-size:13px;font-weight:600;min-width:38px;text-align:center}

    /* THERMOSTAT MODES */
    .mode-btns{display:flex;gap:4px;align-items:center}
    .mode-btn{border:1px solid var(--border);background:var(--surface2);color:var(--muted);border-radius:6px;padding:3px 8px;font-size:11px;cursor:pointer;transition:all .2s;font-weight:600}
    .mode-btn:hover{border-color:var(--accent);color:var(--text)}
    .mode-btn.active-heat{background:rgba(239,68,68,.2);border-color:var(--red);color:var(--red)}
    .mode-btn.active-cool{background:rgba(59,130,246,.2);border-color:var(--blue);color:var(--blue)}
    .mode-btn.active-off{background:var(--surface2);border-color:var(--muted);color:var(--muted)}

    /* AI LIST */
    .ai-list{list-style:none;display:flex;flex-direction:column;gap:10px}
    .ai-item{background:var(--surface2);border-radius:10px;padding:12px;border-left:3px solid var(--green);font-size:13px;line-height:1.5}
    .ai-item.warn{border-left-color:var(--yellow)}
    .ai-item.info{border-left-color:var(--blue)}
    .ai-badge{font-size:10px;font-weight:700;padding:2px 6px;border-radius:4px;margin-right:6px;background:var(--green);color:#000}
    .ai-badge.warn{background:var(--yellow)}
    .ai-badge.info{background:var(--blue)}
    .ai-item-body{display:flex;justify-content:space-between;align-items:flex-start;gap:10px}
    .ai-item-text{flex:1}
    .ai-accept-btn{flex-shrink:0;font-size:11px;font-weight:700;padding:4px 10px;border-radius:16px;border:none;
                   background:var(--accent);color:#fff;cursor:pointer;white-space:nowrap;transition:all .2s}
    .ai-accept-btn:hover{opacity:.85}
    .ai-accept-btn:disabled{opacity:.5;cursor:default}
    .ai-accept-btn.done{background:var(--green);color:#000}

    /* MINI BANNER nelle sezioni stanze/energia */
    .mini-banner{margin-bottom:14px;padding:10px 14px}
    .mini-banner .power-main{gap:4px}
    .mini-banner .power-value{font-size:1.8rem}
    .mini-banner .power-unit{font-size:1rem;padding-top:2px}
    /* fridge sempre acceso */
    .toggle.always-on{opacity:.4;cursor:not-allowed;pointer-events:none}
    .device-always-on{font-size:10px;color:var(--muted);font-style:italic}

    /* SCENARIO */
    .scenario-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px}
    .scenario-btn{background:var(--surface2);border:1px solid var(--border);border-radius:10px;padding:12px;text-align:center;cursor:pointer;font-size:12px;color:var(--text);transition:all .2s;display:flex;flex-direction:column;gap:4px}
    .scenario-btn:hover{background:var(--accent);border-color:var(--accent)}
    .scenario-btn .emoji{font-size:22px}

    /* SURPLUS & BATTERIA */
    .surplus-positive{color:#4ade80}
    .surplus-zero{color:var(--muted)}
    .battery-bar{width:100%;height:8px;background:var(--surface2);border-radius:4px;overflow:hidden;margin-top:4px}
    .battery-fill{height:100%;border-radius:4px;background:linear-gradient(90deg,#f97316,#4ade80);transition:width .5s}

    /* LOG */
    .event-log{max-height:200px;overflow-y:auto;display:flex;flex-direction:column;gap:6px}
    .log-item{font-size:12px;padding:6px 10px;border-radius:8px;background:var(--surface2);border-left:3px solid var(--border);color:var(--muted)}
    .log-item.on{border-left-color:var(--green);color:var(--text)}
    .log-item.off{border-left-color:var(--red)}
    .log-item.scene{border-left-color:var(--accent);color:var(--text)}

    /* TOAST */
    .toast{position:fixed;bottom:24px;right:24px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 20px;font-size:13px;z-index:999;transform:translateY(100px);opacity:0;transition:all .3s;max-width:320px}
    .toast.show{transform:translateY(0);opacity:1}
    .toast.green{border-color:var(--green)}
    .toast.yellow{border-color:var(--yellow)}
    .toast.red{border-color:var(--red)}

    /* STORICO */
    .storico-card{background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:16px}

    /* HOME PAGE */
    .home-hero{text-align:center;padding:44px 0 32px}
    .home-hero h2{font-size:2.2rem;font-weight:800;color:var(--green);margin-bottom:8px;letter-spacing:-1px}
    .home-hero p{color:var(--muted);font-size:15px}
    .home-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-bottom:28px}
    .home-btn{background:var(--surface);border:2px solid var(--border);border-radius:20px;padding:30px 16px 24px;cursor:pointer;transition:all .25s;display:flex;flex-direction:column;align-items:center;gap:10px;text-align:center}
    .home-btn:hover{border-color:var(--accent);transform:translateY(-4px);box-shadow:0 12px 32px var(--shadow)}
    .hb-icon{font-size:42px;line-height:1}
    .hb-label{font-size:15px;font-weight:700;color:var(--text)}
    .hb-sub{font-size:11px;color:var(--muted)}
    .home-lower{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
    .back-btn{background:var(--surface2);border:1px solid var(--border);color:var(--text);border-radius:8px;padding:6px 16px;cursor:pointer;font-size:13px;font-weight:600;transition:all .2s;display:none;align-items:center;gap:6px}
    .back-btn:hover{border-color:var(--accent);color:var(--accent)}

    /* METEO CARD */
    .meteo-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:10px}
    .meteo-temp-block{background:var(--surface2);border-radius:12px;padding:12px 10px}
    .meteo-label{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px;margin-bottom:5px}
    .meteo-big{font-size:24px;font-weight:800;line-height:1.1}
    .meteo-sub{font-size:10px;color:var(--muted);margin-top:3px}
    .meteo-current{display:flex;align-items:center;gap:12px;background:var(--surface2);border-radius:12px;padding:10px 12px;margin-bottom:10px}
    .meteo-icon-big{font-size:30px;line-height:1}
    .meteo-desc{font-size:13px;font-weight:600;color:var(--text)}
    .meteo-wind{font-size:11px;color:var(--muted);margin-top:2px}
    .meteo-forecast{display:grid;grid-template-columns:repeat(5,1fr);gap:6px}
    .meteo-day{background:var(--surface2);border-radius:10px;padding:8px 4px;text-align:center}
    .day-name{font-size:10px;color:var(--muted);text-transform:uppercase;letter-spacing:.5px}
    .day-icon{font-size:20px;margin:5px 0}
    .day-temps{font-size:11px;font-weight:700;color:var(--text)}

    /* THEME BUTTON */
    .theme-btn{background:var(--surface2);border:1px solid var(--border);color:var(--text);
               border-radius:8px;padding:4px 10px;cursor:pointer;font-size:14px;transition:all .2s;line-height:1}
    .theme-btn:hover{border-color:var(--accent)}

    /* ── RESPONSIVE ── */
    @media(max-width:1100px){
      .cards-grid{grid-template-columns:repeat(2,1fr)}
      .charts-row{grid-template-columns:1fr}
      .bottom-row{grid-template-columns:1fr 1fr}
      .home-grid{grid-template-columns:repeat(3,1fr)}
    }
    @media(max-width:768px){
      nav{padding:0 14px;height:52px}
      main{padding:14px}
      .power-banner{flex-direction:column;gap:14px;align-items:flex-start}
      .power-breakdown{gap:14px;flex-wrap:wrap}
      .cards-grid{grid-template-columns:repeat(2,1fr);gap:12px}
      .charts-row{grid-template-columns:1fr}
      .bottom-row{grid-template-columns:1fr}
      .rooms-grid{grid-template-columns:repeat(2,1fr)}
      .scenario-grid{grid-template-columns:1fr 1fr}
      .power-value{font-size:36px}
      .toast{bottom:12px;right:12px;left:12px;max-width:none}
      .home-grid{grid-template-columns:repeat(3,1fr)}
      .home-lower{grid-template-columns:1fr}
    }
    @media(max-width:540px){
      .nav-right #clock,.nav-right .tag{display:none}
      .cards-grid{grid-template-columns:1fr 1fr;gap:10px}
      .card-value{font-size:26px}
      .rooms-grid{grid-template-columns:1fr}
      .power-breakdown{gap:10px}
      .power-item-val{font-size:16px}
      .chart-container{height:180px}
      .bottom-row{grid-template-columns:1fr}
      .home-grid{grid-template-columns:repeat(2,1fr)}
      .home-hero h2{font-size:1.6rem}
    }
    @media(max-width:380px){
      .cards-grid{grid-template-columns:1fr}
      .home-grid{grid-template-columns:1fr 1fr}
    }