:root{
    --bg: #f6f8fb;
    --card: #ffffff;
    --text: #0e1626;
    --muted: #5b6b82;
    --line: rgba(14, 22, 38, .12);
    --shadow: 0 10px 30px rgba(14, 22, 38, .10);
    --accent: #ff3b30;    /* Otto (roșu) */
    --accent2:#2a7fff;    /* Diesel (albastru) */
    --accent3:#14b86a;    /* Carnot (verde) */
    --radius: 18px;
  }
  
  *{ box-sizing:border-box; }
  body{
    margin:0;
    font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial;
    color:var(--text);
    background: radial-gradient(1200px 500px at 20% 0%, rgba(42,127,255,.12), transparent 55%),
                radial-gradient(900px 500px at 80% 10%, rgba(255,59,48,.10), transparent 60%),
                radial-gradient(900px 500px at 50% 30%, rgba(20,184,106,.10), transparent 55%),
                var(--bg);
  }
  
  .topbar{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:18px 22px;
    border-bottom:1px solid var(--line);
    position: sticky;
    top: 0;
    backdrop-filter: blur(10px);
    background: rgba(246,248,251,.75);
    z-index: 10;
  }
  
  .brand{ display:flex; gap:12px; align-items:center; }
  .logo{
    width:44px; height:44px;
    border-radius: 14px;
    display:grid; place-items:center;
    background: linear-gradient(135deg, rgba(255,59,48,.20), rgba(42,127,255,.20));
    border:1px solid var(--line);
  }
  h1{ font-size:18px; margin:0; }
  .topbar p{ margin:2px 0 0; color:var(--muted); font-size:13px; }
  
  .pill{
    padding:8px 12px;
    border-radius: 999px;
    border:1px solid var(--line);
    background: rgba(255,255,255,.7);
    box-shadow: 0 6px 18px rgba(14,22,38,.06);
    font-size:12px;
    color:var(--muted);
  }
  
  .layout{
    display:grid;
    grid-template-columns: 370px 1fr;
    gap:16px;
    padding:16px;
    max-width: 1400px;
    margin: 0 auto;
  }
  
  .panel{
    background: rgba(255,255,255,.75);
    border:1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding:14px;
    position: sticky;
    top: 86px;
    height: calc(100vh - 110px);
    overflow:auto;
  }
  
  .panel-header{ display:flex; align-items:flex-start; justify-content:space-between; gap:12px; }
  .panel h2{ margin:0; font-size:16px; }
  
  .seg{
    display:flex; gap:6px;
    background: rgba(14,22,38,.05);
    border:1px solid var(--line);
    padding:6px;
    border-radius: 999px;
    flex-wrap: wrap;
  }
  .seg-btn{
    border:0;
    background: transparent;
    padding:8px 10px;
    border-radius: 999px;
    cursor:pointer;
    font-weight:600;
    font-size:12px;
    color:var(--muted);
  }
  .seg-btn.active{
    background: white;
    border:1px solid var(--line);
    color:var(--text);
    box-shadow: 0 8px 18px rgba(14,22,38,.08);
  }
  
  .group{
    margin-top:14px;
    padding-top:12px;
    border-top:1px solid var(--line);
  }
  .group h3{
    margin:0 0 10px;
    font-size:13px;
    color:var(--muted);
    letter-spacing:.2px;
  }
  .row{
    display:grid;
    grid-template-columns: 1fr 1.2fr auto;
    gap:10px;
    align-items:center;
    margin: 10px 0;
  }
  .row2{
    grid-template-columns: 1fr auto;
  }
  .row span{ font-size:12.5px; color:var(--text); }
  .row input[type="range"]{ width:100%; }
  .row output{
    font-variant-numeric: tabular-nums;
    font-size:12px;
    color:var(--muted);
    min-width:70px;
    text-align:right;
  }
  .row input[type="checkbox"]{ justify-self:end; transform: scale(1.1); }
  
  .note{
    font-size:12px;
    color:var(--muted);
    border:1px dashed rgba(14,22,38,.18);
    padding:10px;
    border-radius: 14px;
    background: rgba(255,255,255,.6);
  }
  
  .compareRow{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap:10px;
    margin-top: 10px;
  }
  .field{
    border:1px solid var(--line);
    border-radius: 14px;
    background: rgba(255,255,255,.7);
    padding:10px;
  }
  .field label{
    display:block;
    font-size:11px;
    color:var(--muted);
    font-weight:800;
    margin-bottom:6px;
  }
  select{
    width:100%;
    border:1px solid var(--line);
    border-radius: 12px;
    padding:10px 10px;
    background: white;
    font-weight:700;
    color: var(--text);
    outline:none;
  }
  
  .btns{ display:flex; gap:10px; margin-top:10px; }
  .btn{
    border:1px solid var(--line);
    background: white;
    border-radius: 14px;
    padding:10px 12px;
    cursor:pointer;
    font-weight:700;
    font-size:12.5px;
  }
  .btn.primary{
    background: linear-gradient(135deg, rgba(255,59,48,.18), rgba(42,127,255,.16));
  }
  
  .stage{ min-width: 0; }
  .cards{
    display:grid;
    grid-template-columns: 1.2fr .8fr;
    gap:16px;
  }
  .card{
    background: rgba(255,255,255,.82);
    border:1px solid var(--line);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding:14px;
    min-width: 0;
  }
  .card-title{
    font-weight:900;
    font-size:13px;
    color:var(--muted);
    margin-bottom:10px;
  }
  
  .charts{
    display:grid;
    gap:14px;
  }
  .chart-wrap{
    border:1px solid var(--line);
    border-radius: 16px;
    padding:10px;
    background: rgba(255,255,255,.7);
  }
  .chart-label{
    font-size:12px;
    color:var(--muted);
    margin: 0 0 8px;
    font-weight:700;
  }
  canvas{ width:100%; height:auto; display:block; border-radius: 12px; background: white; }
  
  .mini{
    margin-top:12px;
    display:grid;
    grid-template-columns: repeat(4, 1fr);
    gap:10px;
  }
  .mini-item{
    border:1px solid var(--line);
    background: rgba(255,255,255,.7);
    border-radius: 14px;
    padding:10px;
  }
  .mini-item span{ display:block; font-size:11px; color:var(--muted); }
  .mini-item b{ font-size:13px; }
  
  .grid2{
    display:grid;
    grid-template-columns: 1fr 1fr;
    gap:12px;
  }
  .kpi{
    border:1px solid var(--line);
    border-radius: 16px;
    padding:12px;
    background: rgba(255,255,255,.7);
  }
  .kpi span{ display:block; font-size:11px; color:var(--muted); }
  .kpi b{ display:block; font-size:18px; margin-top:4px; }
  .kpi small{ color:var(--muted); }
  
  .tableWrap{
    margin-top:12px;
    border:1px solid var(--line);
    border-radius: 16px;
    overflow:hidden;
    background: rgba(255,255,255,.7);
  }
  .states{
    width:100%;
    border-collapse: collapse;
    font-variant-numeric: tabular-nums;
  }
  .states th, .states td{
    padding:10px 10px;
    border-bottom:1px solid var(--line);
    font-size:12px;
  }
  .states th{
    text-align:left;
    background: rgba(14,22,38,.04);
    color:var(--muted);
    font-weight:800;
  }
  .states tr:last-child td{ border-bottom:0; }
  
  .footnote{
    margin-top:10px;
    font-size:12px;
    color:var(--muted);
  }
  
  .footer{
    max-width: 1400px;
    margin: 8px auto 18px;
    padding: 0 16px;
    display:flex;
    justify-content:space-between;
    gap:12px;
    color:var(--muted);
    font-size:12px;
  }
  
  .hidden{ display:none; }
  .muted{ opacity:.8; }
  
  @media (max-width: 1100px){
    .layout{ grid-template-columns: 1fr; }
    .panel{ position: relative; top:auto; height:auto; }
    .cards{ grid-template-columns: 1fr; }
    .mini{ grid-template-columns: 1fr 1fr; }
  }