:root {
    color-scheme: light;
    --bg: #f4f6f5; --panel: #ffffff; --panel-2: #eef2f0; --line: #dbe3df;
    --ink: #17211e; --muted: #56655f; --accent: #1f5b4e; --accent-ink: #ffffff; --accent-soft: #e2eeea;
    --crit: #b42318; --crit-soft: #fdecea; --high: #b54708; --high-soft: #fdf1e3;
    --mid: #175cd3; --mid-soft: #e8f0fd; --check: #6941c6; --check-soft: #f1ecfb; --info: #475467; --info-soft: #eef0f3;
    --ok: #067647; --ok-soft: #e4f5ec;
    --radius: 10px;
    --display: "Bitter", Georgia, "Times New Roman", serif;
    --body: "Source Sans 3", "Segoe UI", system-ui, sans-serif;
    --mono: "IBM Plex Mono", ui-monospace, Consolas, monospace;
  }
  /* Clair par défaut ; sombre seulement si le visiteur le choisit (bouton, mémorisé). */
  :root[data-theme="dark"] {
    color-scheme: dark;
    --bg: #111715; --panel: #18201d; --panel-2: #1f2925; --line: #2c3833;
    --ink: #e5ece9; --muted: #9aaba4; --accent: #6fc2ad; --accent-ink: #0d1a16; --accent-soft: #1c332c;
    --crit: #ff8a80; --crit-soft: #3a1a18; --high: #f5b56a; --high-soft: #362513;
    --mid: #8ab4ff; --mid-soft: #18243a; --check: #c4a8ff; --check-soft: #2a2140; --info: #b3bec9; --info-soft: #222a31;
    --ok: #6fd6a0; --ok-soft: #17301f;
  }
  * { box-sizing: border-box; }
  body { background: var(--bg); color: var(--ink); font: 15px/1.5 var(--body); margin: 0;
    padding-inline: 16px; padding-block: 0 32px; }
  h1, h2, h3 { font-family: var(--display); text-wrap: balance; margin: 0; }
  button, input, select, textarea { font: inherit; color: inherit; }
  code, .mono { font-family: var(--mono); font-size: .86em; }
  :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

  .top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg);
    border-bottom: 1px solid var(--line); margin-inline: -16px; padding: 12px 16px; }
  .top-row { display: flex; gap: 10px 12px; align-items: center; flex-wrap: wrap; max-width: 1400px; margin: 0 auto; }
  .brand { display: flex; flex-direction: column; margin-right: auto; }
  .brand h1 { font-size: 20px; }
  .brand span { color: var(--muted); font-size: 13px; }
  .tools { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
  .btn { border: 1px solid var(--line); background: var(--panel); padding: 7px 14px; border-radius: 8px;
    cursor: pointer; font-weight: 600; }
  .btn:hover { border-color: var(--accent); }
  .btn.primary { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
  select.sel { border: 1px solid var(--line); background: var(--panel); padding: 7px 10px; border-radius: 8px; max-width: 220px; }
  .toggle { display: flex; gap: 6px; align-items: center; font-size: 14px; font-weight: 600; cursor: pointer; }
  .confirm { display: flex; gap: 8px; align-items: center; font-size: 14px; flex-wrap: wrap; }

  .wrap { max-width: 1400px; margin: 16px auto 0; display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1.05fr);
    gap: 20px; align-items: start; }
  .banner { max-width: 1400px; margin: 12px auto 0; background: var(--accent-soft); color: var(--ink);
    border-radius: 8px; padding: 8px 12px; font-size: 14px; }

  .panel { background: var(--panel); border: 1px solid var(--line); border-radius: var(--radius); }
  .qcol { display: flex; flex-direction: column; gap: 12px; }
  .ident { padding: 14px 16px; display: grid; gap: 6px; }
  .ident label { font-size: 13px; color: var(--muted); }
  .ident input { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-2); width: 100%; }
  #sections { display: flex; flex-direction: column; gap: 12px; }

  details.sec { overflow: hidden; }
  details.sec > summary { list-style: none; cursor: pointer; padding: 12px 16px; display: flex; gap: 12px;
    align-items: center; }
  details.sec > summary::-webkit-details-marker { display: none; }
  details.sec > summary h2 { font-size: 16px; flex: 1; }
  .prog { font-family: var(--mono); font-size: 12px; color: var(--muted); white-space: nowrap; }
  .prog.done { color: var(--ok); }
  .chev { transition: transform .15s; color: var(--muted); }
  details[open] .chev { transform: rotate(90deg); }
  .qs { padding: 4px 16px 16px; display: flex; flex-direction: column; gap: 16px; border-top: 1px solid var(--line); }
  .q { display: flex; flex-direction: column; gap: 7px; padding-top: 12px; }
  .q > .label { font-weight: 600; }
  .q > .help { color: var(--muted); font-size: 13px; margin-top: -4px; }
  .opts { display: flex; flex-wrap: wrap; gap: 6px; }
  .opt { position: relative; }
  .opt input { position: absolute; opacity: 0; pointer-events: none; }
  .opt span { display: inline-block; border: 1px solid var(--line); background: var(--panel-2); border-radius: 999px;
    padding: 5px 12px; cursor: pointer; font-size: 14px; }
  .opt input:checked + span { background: var(--accent); border-color: var(--accent); color: var(--accent-ink); }
  .opt input:focus-visible + span { outline: 2px solid var(--accent); outline-offset: 2px; }
  .q input[type=number] { width: 120px; padding: 6px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-2); }
  .q textarea { width: 100%; min-height: 80px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px;
    background: var(--panel-2); resize: vertical; }

  .rcol { position: sticky; top: calc(env(safe-area-inset-top, 0px) + 74px); max-height: calc(100vh - 90px); overflow: auto;
    display: flex; flex-direction: column; gap: 12px; }
  .rhead { padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
  .rhead h2 { font-size: 18px; }
  .rhead .sub { color: var(--muted); font-size: 13px; }
  .tally { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 8px; }
  .t { border-radius: 8px; padding: 8px 10px; display: flex; flex-direction: column; }
  .t b { font-family: var(--display); font-size: 22px; font-variant-numeric: tabular-nums; }
  .t span { font-size: 12px; }
  .t.crit { background: var(--crit-soft); color: var(--crit); } .t.high { background: var(--high-soft); color: var(--high); }
  .t.mid { background: var(--mid-soft); color: var(--mid); } .t.check { background: var(--check-soft); color: var(--check); }
  .t.info { background: var(--info-soft); color: var(--info); }

  .block { padding: 14px 16px; display: flex; flex-direction: column; gap: 10px; }
  .block h3 { font-size: 15px; }
  .tablewrap { overflow-x: auto; }
  table { border-collapse: collapse; width: 100%; font-size: 14px; }
  th, td { text-align: left; padding: 7px 8px; border-bottom: 1px solid var(--line); vertical-align: top; }
  th { font-size: 12px; color: var(--muted); font-weight: 600; text-transform: uppercase; letter-spacing: .04em; }
  .pill { display: inline-block; border-radius: 999px; padding: 1px 9px; font-size: 12px; font-weight: 600; white-space: nowrap; }
  .pill.aut { background: var(--high-soft); color: var(--high); }
  .pill.dec { background: var(--mid-soft); color: var(--mid); }
  .pill.tr { background: var(--info-soft); color: var(--info); }
  .pill.chk { background: var(--check-soft); color: var(--check); }
  .pill.done { background: var(--ok-soft); color: var(--ok); }

  .finding { border: 1px solid var(--line); border-left: 4px solid var(--line); border-radius: 8px; padding: 10px 12px;
    display: flex; flex-direction: column; gap: 6px; background: var(--panel); }
  .finding.crit { border-left-color: var(--crit); } .finding.high { border-left-color: var(--high); }
  .finding.mid { border-left-color: var(--mid); } .finding.check { border-left-color: var(--check); }
  .finding.info { border-left-color: var(--info); }
  .fhead { display: flex; gap: 8px; align-items: baseline; flex-wrap: wrap; }
  .sev { font-size: 11px; font-weight: 700; text-transform: uppercase; letter-spacing: .05em; }
  .sev.crit { color: var(--crit); } .sev.high { color: var(--high); } .sev.mid { color: var(--mid); }
  .sev.check { color: var(--check); } .sev.info { color: var(--info); }
  .ftitle { font-weight: 700; }
  .fbody { font-size: 14px; }
  .fix { font-size: 14px; background: var(--accent-soft); border-radius: 6px; padding: 6px 9px; }
  .fix b { color: var(--accent); }
  .meta { display: flex; gap: 6px 14px; flex-wrap: wrap; font-size: 12px; color: var(--muted); }
  .meta .mono { color: var(--ink); }
  .risk { font-size: 13px; color: var(--crit); }
  ul.docs { margin: 0; padding-left: 18px; display: flex; flex-direction: column; gap: 4px; font-size: 14px; }
  .empty { color: var(--muted); font-size: 14px; }
  .foot { font-size: 12px; color: var(--muted); padding: 12px 16px; }
  .notes { white-space: pre-wrap; font-size: 14px; }
  .hors { padding: 16px; display: flex; flex-direction: column; gap: 8px; border-left: 4px solid var(--check); }

  @media (max-width: 900px) {
    .wrap { grid-template-columns: minmax(0, 1fr); }
    .rcol { position: static; max-height: none; overflow: visible; }
    .tally { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  }
  @media (prefers-reduced-motion: reduce) { .chev { transition: none; } }
  @media print {
    .top, .qcol, .banner { display: none !important; }
    .wrap { display: block; } .rcol { position: static; max-height: none; overflow: visible; }
    body { background: #fff; }
  }

  /* Site public */
  .intro { max-width: 1400px; margin: 16px auto 0; color: var(--muted); font-size: 15px; }
  .intro b { color: var(--ink); }
  .cta { gap: 12px; }
  .cta .btn { align-self: flex-start; }
  .btn[disabled] { opacity: .5; cursor: not-allowed; }
  .err { color: var(--crit); font-size: 14px; }
  .code-box { padding: 16px; display: flex; flex-direction: column; gap: 6px; border: 2px solid var(--accent); }
  .code-label { font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: .05em; font-weight: 600; }
  .code { font-family: var(--mono); font-size: 28px; font-weight: 500; color: var(--accent); letter-spacing: .04em; user-select: all; }

  /* Administration */
  .adm { max-width: 1400px; margin: 16px auto 0; display: flex; flex-direction: column; gap: 12px; }
  .filters { display: flex; gap: 8px; flex-wrap: wrap; align-items: center; padding: 12px 16px; }
  .filters input, .filters select { border: 1px solid var(--line); background: var(--panel-2); padding: 6px 10px; border-radius: 8px; }
  td.num { font-family: var(--mono); font-variant-numeric: tabular-nums; text-align: right; }
  td.num.crit { color: var(--crit); } td.num.high { color: var(--high); } td.num.mid { color: var(--mid); } td.num.check { color: var(--check); }
  .pill.st-nouveau { background: var(--mid-soft); color: var(--mid); }
  .pill.st-contacte { background: var(--high-soft); color: var(--high); }
  .pill.st-client { background: var(--ok-soft); color: var(--ok); }
  .pill.st-sans_suite { background: var(--info-soft); color: var(--info); }
  .login { max-width: 360px; margin: 60px auto; padding: 20px; display: flex; flex-direction: column; gap: 10px; }
  .login input { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-2); width: 100%; }
  .suivi { display: flex; flex-direction: column; gap: 8px; }
  .suivi textarea { width: 100%; min-height: 90px; padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-2); }
  .suivi select { border: 1px solid var(--line); background: var(--panel-2); padding: 6px 10px; border-radius: 8px; align-self: flex-start; }
  .answers td:first-child { color: var(--muted); width: 55%; }
  .answers th { background: var(--panel-2); text-transform: none; letter-spacing: 0; font-size: 13px; color: var(--ink); }
  .pager { display: flex; gap: 8px; align-items: center; padding: 0 16px 14px; font-size: 14px; }
  a { color: var(--accent); }

  /* Questionnaire public par étapes (une colonne) */
  .pub { max-width: 820px; margin: 0 auto; display: flex; flex-direction: column; gap: 14px; padding-top: 16px; }
  .pub .intro { margin: 0; }
  .pub-top { max-width: 820px; }
  .stepper { display: flex; flex-direction: column; gap: 8px; }
  .step-meta { display: flex; justify-content: space-between; font-size: 13px; color: var(--muted); font-weight: 600; }
  .progress { height: 8px; background: var(--panel-2); border-radius: 999px; overflow: hidden; border: 1px solid var(--line); }
  .progress > span { display: block; height: 100%; width: 0; background: var(--accent); border-radius: 999px; transition: width .25s; }
  .step-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 4px 14px; font-size: 13px; color: var(--muted); }
  .step-list li.done { color: var(--ok); }
  .step-list li.done::before { content: "✓ "; }
  .step-list li.cur { color: var(--ink); font-weight: 700; }
  .step-card { padding: 18px 20px 20px; }
  .step-card h2 { font-size: 20px; }
  .step-card h2:focus { outline: none; }
  .step-card .qs { border-top: none; padding: 0; }
  .nav-steps { display: flex; gap: 10px; align-items: center; justify-content: space-between; flex-wrap: wrap; }
  .nav-steps .btn { padding: 10px 18px; }
  .hint { color: var(--muted); font-size: 13px; text-align: center; flex: 1; }
  .contact-actions { display: flex; gap: 8px; flex-wrap: wrap; margin-top: 4px; }
  a.btn { text-decoration: none; display: inline-block; color: inherit; }
  a.btn.primary { color: var(--accent-ink); }
  .ok-msg { color: var(--ok); font-size: 14px; }
  .danger { border-color: var(--crit); color: var(--crit); }
  .settings { max-width: 640px; margin: 16px auto 0; display: flex; flex-direction: column; gap: 12px; }
  .settings form { padding: 18px 20px; display: flex; flex-direction: column; gap: 8px; }
  .settings input { padding: 8px 10px; border: 1px solid var(--line); border-radius: 8px; background: var(--panel-2); width: 100%; }
  .settings .btn { align-self: flex-start; }
  @media (max-width: 600px) {
    .step-list { display: none; }
    .step-card { padding: 14px; }
  }
  @media (prefers-reduced-motion: reduce) { .progress > span { transition: none; } }