/* Extrait de constellation-lab.html — sorti du HTML pour etre mis en cache
   independamment de la page, et pour permettre une CSP sans
   'unsafe-inline'. Charge a la meme position : cascade inchangee. */

:root {
    --ink: #E3E3C4;
    --ink-soft: rgba(227, 227, 196, .55);
    --ink-faint: rgba(227, 227, 196, .2);
    --sky-top: #080d14;
    --sky-bottom: #123049;
    --panel: rgba(8, 14, 22, .74);
    --ok: #9AD5A8;
    --warn: #E8C27A;
    --bad: #E39A8C;
    --panel-w: 372px;
    --font: 'Afacad', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  }

  * { box-sizing: border-box; }

  html, body {
    height: 100%; margin: 0;
    background: var(--sky-top);
    color: var(--ink);
    font-family: var(--font);
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
  }

  /* Fond provisoire. En production ce sera l'asset du splashscreen. */
  #stage {
    position: fixed; inset: 0; overflow: hidden;
    background:
      radial-gradient(120% 80% at 50% 108%, rgba(32, 92, 132, .55) 0%, transparent 62%),
      linear-gradient(178deg, var(--sky-top) 0%, #0b1723 46%, var(--sky-bottom) 100%);
  }
  #stage::after {
    content: ''; position: absolute; inset: -10%; pointer-events: none; opacity: .7;
    background-image:
      radial-gradient(1.4px 1.4px at 12% 22%, rgba(255,255,255,.55), transparent),
      radial-gradient(1px 1px at 68% 14%, rgba(255,255,255,.4), transparent),
      radial-gradient(1.6px 1.6px at 84% 61%, rgba(255,255,255,.5), transparent),
      radial-gradient(1px 1px at 34% 74%, rgba(255,255,255,.35), transparent),
      radial-gradient(1.2px 1.2px at 52% 41%, rgba(255,255,255,.3), transparent),
      radial-gradient(1px 1px at 22% 57%, rgba(255,255,255,.32), transparent),
      radial-gradient(1.3px 1.3px at 76% 33%, rgba(255,255,255,.28), transparent),
      radial-gradient(1px 1px at 44% 88%, rgba(255,255,255,.3), transparent);
    background-size: 340px 300px;
  }

  #viewport { position: absolute; inset: 88px calc(var(--panel-w) + 40px) 132px 40px; }

  /* -------------------------------------------------------------- tooltip */

  #tooltip {
    position: absolute; width: 268px; padding: 16px 18px 18px;
    border: 1px solid var(--ink-faint); border-radius: 3px;
    background: rgba(6, 12, 20, .82); backdrop-filter: blur(14px);
    opacity: 0; transform: translateY(6px); pointer-events: none;
    transition: opacity .38s cubic-bezier(.4,0,.2,1), transform .38s cubic-bezier(.4,0,.2,1);
  }
  #tooltip[data-visible] { opacity: 1; transform: translateY(0); }
  #tooltip h3 { margin: 0; font-size: 21px; font-weight: 500; }
  #tooltip .meta { margin: 3px 0 10px; font-size: 13px; color: var(--ink-soft); }
  #tooltip p { margin: 0; font-size: 14px; line-height: 1.5; color: rgba(227,227,196,.78); }
  #tooltip .rule { height: 1px; margin: 12px 0; background: var(--ink-faint); }

  /* ---------------------------------------------------------------- panel */

  #panel {
    position: fixed; top: 0; right: 0; bottom: 0; width: var(--panel-w);
    padding: 22px 22px 48px; overflow-y: auto;
    background: var(--panel); backdrop-filter: blur(18px);
    border-left: 1px solid var(--ink-faint);
  }
  #panel h1 { margin: 0 0 2px; font-size: 19px; font-weight: 600; letter-spacing: .02em; }
  #panel .sub { margin: 0 0 18px; font-size: 13px; color: var(--ink-soft); line-height: 1.45; }

  .block {
    margin-bottom: 18px; padding: 15px 16px 16px;
    border: 1px solid var(--ink-faint); border-radius: 3px;
    background: rgba(255,255,255,.022);
  }
  .block > h2 {
    display: flex; align-items: baseline; gap: 8px;
    margin: 0 0 3px; font-size: 15px; font-weight: 600;
  }
  .block > .hint { margin: 0 0 14px; font-size: 12.5px; line-height: 1.45; color: var(--ink-soft); }
  .block[data-dirty] { border-color: var(--warn); }

  .dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--warn); opacity: 0;
    transition: opacity .2s;
  }
  .block[data-dirty] .dot { opacity: 1; }

  .sect {
    margin: 0 0 4px; padding-top: 10px;
    border-top: 1px solid var(--ink-faint);
    font-size: 11.5px; letter-spacing: .04em; color: var(--ink-soft);
  }
  .sect:first-of-type { padding-top: 2px; border-top: 0; }

  .row {
    display: grid; grid-template-columns: 1fr auto; align-items: baseline;
    gap: 3px 10px; margin-bottom: 10px; font-size: 13.5px;
  }
  .row > .val {
    font-variant-numeric: tabular-nums; font-size: 12.5px; color: var(--ink-soft);
  }
  .row > input[type=range], .row > select { grid-column: 1 / -1; }
  .row > .pair { grid-column: 1 / -1; display: grid; grid-template-columns: 1fr 68px; gap: 8px; align-items: center; }

  input[type=range] {
    width: 100%; height: 18px; margin: 2px 0 0;
    appearance: none; background: transparent; cursor: pointer;
  }
  input[type=range]::-webkit-slider-runnable-track { height: 1px; background: var(--ink-faint); }
  input[type=range]::-webkit-slider-thumb {
    appearance: none; width: 11px; height: 11px; margin-top: -5px;
    border-radius: 50%; background: var(--ink);
  }
  input[type=range]::-moz-range-track { height: 1px; background: var(--ink-faint); }
  input[type=range]::-moz-range-thumb {
    width: 11px; height: 11px; border: 0; border-radius: 50%; background: var(--ink);
  }

  select, input[type=number], input[type=password] {
    width: 100%; padding: 6px 8px;
    color: var(--ink); background: rgba(255,255,255,.05);
    border: 1px solid var(--ink-faint); border-radius: 2px;
    font-family: inherit; font-size: 13.5px;
  }
  input[type=number] { text-align: right; font-variant-numeric: tabular-nums; }
  select option { background: #0b1420; }

  button {
    font-family: inherit; cursor: pointer;
    border-radius: 2px; transition: color .18s, border-color .18s, background .18s, opacity .18s;
  }
  .btn {
    width: 100%; padding: 9px 12px; margin-top: 4px;
    color: var(--ink); background: rgba(227,227,196,.09);
    border: 1px solid var(--ink-soft); font-size: 13.5px; font-weight: 500;
  }
  .btn:hover:not(:disabled) { background: rgba(227,227,196,.16); }
  .btn:disabled { opacity: .35; cursor: not-allowed; }
  .btn.ghost {
    background: transparent; border-color: var(--ink-faint);
    color: var(--ink-soft); font-weight: 400; font-size: 12.5px; padding: 6px 10px;
  }
  .btn.ghost:hover:not(:disabled) { color: var(--ink); border-color: var(--ink-soft); }
  .btnrow { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
  .btnrow3 { display: grid; grid-template-columns: 40px 1fr 40px; gap: 8px; margin-top: 2px; }
  .btnrow3 .btn { padding: 6px 0; }

  .status { margin: 8px 0 0; font-size: 12.5px; line-height: 1.5; min-height: 1.4em; color: var(--ink-soft); }
  .status[data-tone=ok] { color: var(--ok); }
  .status[data-tone=warn] { color: var(--warn); }
  .status[data-tone=bad] { color: var(--bad); }
  .status a { color: inherit; text-decoration: underline; text-underline-offset: 2px; }

  #starlist { display: flex; flex-wrap: wrap; gap: 6px; max-height: 190px; overflow-y: auto; }
  #starlist button {
    padding: 5px 9px; color: var(--ink-soft); background: transparent;
    border: 1px solid var(--ink-faint); font-size: 12.5px;
  }
  #starlist button:hover { color: var(--ink); border-color: var(--ink-soft); }
  #starlist button[aria-pressed=true] { color: #0b1420; background: var(--ink); border-color: var(--ink); }

  #readout {
    margin-top: 8px; font-size: 12.5px; line-height: 1.55;
    color: var(--ink-soft); font-variant-numeric: tabular-nums;
  }

  :focus-visible { outline: 2px solid var(--ink); outline-offset: 2px; }

  /* -------------------------------------------------------------- loader */

  #loader {
    position: fixed; inset: 0; z-index: 10;
    display: grid; place-content: center; justify-items: center; gap: 14px;
    padding: 40px; text-align: center; background: var(--sky-top);
  }
  #loader p { max-width: 36ch; margin: 0; line-height: 1.55; color: var(--ink-soft); }
  #loader code { color: var(--ink); }
  #loader input[type=file] { color: var(--ink-soft); font-family: inherit; font-size: 13px; }
  #loader[hidden] { display: none; }