:root {
      --bg:      #0c0c0c;
      --fg:      #00ff41;
      --accent:  #008f11;
      --dim:     #004400;
      --border:  #008f11;
    }
    *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

    body {
      background: var(--bg);
      color: var(--fg);
      font-family: 'Courier New', Courier, monospace;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
      align-items: center;
      padding: 20px;
    }

/*
     .server-address {
      font-size: 0.85rem;
      letter-spacing: 3px;
      color: var(--accent);
      text-transform: uppercase;
      margin-bottom: 14px;
      opacity: 0.8;
    }
*/

.server-address {
    /* Poista position: absolute, top, left ja transform */
    font-size: 0.85rem;
    letter-spacing: 3px;
    color: var(--accent);
    opacity: 0.75;
    text-transform: uppercase;
    font-weight: bold;
    text-shadow: 0 0 5px rgba(0, 143, 17, 0.3);
    margin-bottom: 14px; /* Tämä takaa välin terminaaliin */
    text-align: center;
}

.server-address:hover {
    opacity: 1;
    color: var(--text-color);
    text-shadow: 0 0 8px rgba(0, 255, 65, 0.5);
    letter-spacing: 4px; /* Pieni dynaaminen efekti hiirellä */
}

    .terminal {
      background: rgba(0,0,0,0.85);
      border: 1px solid var(--accent);
      box-shadow: 0 0 20px rgba(0,255,65,0.15);
      padding: 24px;
      width: 100%;
      max-width: 1100px;
      position: relative;
    }

    .terminal::before {
      content: "SENSOR MONITOR";
      position: absolute;
      top: -10px; left: 20px;
      background: var(--bg);
      padding: 0 10px;
      font-size: 0.75rem;
      color: var(--accent);
    }

    h1 { font-size: 1.2rem; margin-bottom: 18px; }
    .prompt { color: #fff; }

    /* ── Current values ── */
    .current-grid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
      gap: 10px;
      margin-bottom: 24px;
    }
    .current-card {
      border: 1px solid var(--dim);
      padding: 10px 14px;
      border-radius: 2px;
    }
    .current-card .label {
      font-size: 0.7rem;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 0.08em;
      margin-bottom: 4px;
    }
    .current-card .value {
      font-size: 1.4rem;
      font-weight: bold;
    }
    .current-card .hum {
      font-size: 0.85rem;
      color: var(--accent);
      margin-top: 2px;
    }
    .current-card .timestamp {
      font-size: 0.65rem;
      color: var(--dim);
      margin-top: 4px;
    }

    /* ── Tabs ── */
    .tabs {
      display: flex;
      gap: 8px;
      margin-bottom: 16px;
      flex-wrap: wrap;
      align-items: center;
    }
    .tab {
      padding: 6px 18px;
      background: transparent;
      border: 1px solid var(--dim);
      color: var(--accent);
      font-family: inherit;
      font-size: 0.8rem;
      cursor: pointer;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      transition: background 0.15s;
    }
    .tab:hover { background: var(--dim); }
    .tab.active { background: var(--dim); border-color: var(--accent); color: var(--fg); }

    .custom-range {
      display: none;
      align-items: center;
      gap: 8px;
      flex-wrap: wrap;
    }
    .custom-range.visible { display: flex; }
    .custom-range input[type="date"] {
      background: var(--bg);
      border: 1px solid var(--dim);
      color: var(--fg);
      font-family: inherit;
      font-size: 0.8rem;
      padding: 5px 8px;
      outline: none;
      colorscheme: dark;
    }
    .custom-range input[type="date"]:focus { border-color: var(--accent); }
    .custom-range button {
      padding: 5px 14px;
      background: var(--dim);
      border: 1px solid var(--accent);
      color: var(--fg);
      font-family: inherit;
      font-size: 0.8rem;
      cursor: pointer;
      text-transform: uppercase;
    }
    .custom-range button:hover { background: var(--accent); color: var(--bg); }

    /* ── Charts ── */
    .chart-section { margin-bottom: 28px; }
    .chart-title {
      font-size: 0.75rem;
      color: var(--accent);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      margin-bottom: 10px;
      border-bottom: 1px dashed var(--dim);
      padding-bottom: 6px;
    }
    .chart-wrap {
      position: relative;
      height: 300px;
    }

    .status {
      font-size: 0.8rem;
      color: var(--accent);
      margin-bottom: 14px;
      min-height: 1.2em;
    }

    a { color: var(--fg); border-bottom: 1px solid var(--accent); text-decoration: none; display: inline; }
    a:hover { background: var(--accent); color: var(--bg); }

    @media (max-width: 600px) {
      .chart-wrap { height: 220px; }
    }