:root {
    --encre: #1b2a33;
    --papier: #eef1f0;
    --carte: #ffffff;
    --accent: #2e6f5e;
    --alerte: #b4531f;
    --sourdine: #6b7a80;
    --trait: #d5dbd9;
    --rayon: 10px;
    --mono: ui-monospace, "SF Mono", SFMono-Regular, Menlo, monospace;
    --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  }

  * { box-sizing: border-box; }

  body {
    margin: 0;
    padding: max(1.25rem, env(safe-area-inset-top)) 1.25rem
             max(2rem, env(safe-area-inset-bottom));
    background: var(--papier);
    color: var(--encre);
    font-family: var(--sans);
    font-size: 17px;
    line-height: 1.45;
    -webkit-text-size-adjust: 100%;
  }

  main { max-width: 460px; margin: 0 auto; }

  h1 {
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 0.01em;
    margin: 0 0 0.25rem;
  }

  .sous-titre {
    font-family: var(--mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--sourdine);
    margin: 0 0 1.5rem;
  }

  /* --- Zone photo ------------------------------------------------------- */

  .prise {
    display: block;
    position: relative;
    background: var(--carte);
    border: 2px dashed var(--trait);
    border-radius: var(--rayon);
    padding: 2.75rem 1rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
  }
  .prise:active { border-color: var(--accent); background: #f7faf9; }
  .prise input { position: absolute; opacity: 0; width: 1px; height: 1px; }

  .prise-titre { font-weight: 600; }
  .prise-aide {
    font-size: 0.85rem;
    color: var(--sourdine);
    margin-top: 0.2rem;
  }

  .prise.remplie { padding: 0; border-style: solid; overflow: hidden; }
  .prise.remplie .prise-texte { display: none; }

  #apercu { display: none; width: 100%; vertical-align: middle; }
  .prise.remplie #apercu { display: block; }

  .remplacer {
    position: absolute;
    right: 0.6rem;
    bottom: 0.6rem;
    background: rgba(27, 42, 51, 0.82);
    color: #fff;
    font-size: 0.78rem;
    font-weight: 600;
    padding: 0.4rem 0.7rem;
    border-radius: 6px;
    display: none;
  }
  .prise.remplie .remplacer { display: block; }

  /* --- Champs ----------------------------------------------------------- */

  .champs { margin-top: 1.25rem; display: grid; gap: 0.9rem; }

  label {
    display: block;
    font-family: var(--mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--sourdine);
    margin-bottom: 0.35rem;
  }

  select, input[type="text"], input[type="number"], textarea {
    width: 100%;
    font-family: var(--sans);
    font-size: 17px;
    color: var(--encre);
    background: var(--carte);
    border: 1px solid var(--trait);
    border-radius: var(--rayon);
    padding: 0.8rem 0.85rem;
    -webkit-appearance: none;
    appearance: none;
  }
  select {
    background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='8'><path d='M1 1l5 5 5-5' fill='none' stroke='%236b7a80' stroke-width='1.6'/></svg>");
    background-repeat: no-repeat;
    background-position: right 0.9rem center;
    padding-right: 2.2rem;
  }
  textarea { resize: vertical; min-height: 3.2rem; }
  :focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

  .duo { display: grid; grid-template-columns: 1fr 1fr; gap: 0.9rem; }

  /* --- Bouton ----------------------------------------------------------- */

  button {
    font-family: var(--sans);
    font-size: 17px;
    font-weight: 600;
    border: none;
    border-radius: var(--rayon);
    padding: 1rem;
    width: 100%;
    cursor: pointer;
  }
  .principal { background: var(--accent); color: #fff; margin-top: 1.4rem; }
  .principal:disabled { background: var(--sourdine); opacity: 0.6; }
  .secondaire {
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--trait);
    margin-top: 0.8rem;
  }

  /* --- Progression et erreurs ------------------------------------------- */

  .etat {
    margin-top: 1rem;
    font-size: 0.9rem;
    text-align: center;
    color: var(--sourdine);
    min-height: 1.4em;
  }
  .etat.erreur { color: var(--alerte); text-align: left; font-weight: 500; }

  .jauge {
    height: 3px;
    background: var(--trait);
    border-radius: 2px;
    overflow: hidden;
    margin-top: 1rem;
    display: none;
  }
  .jauge.active { display: block; }
  .jauge i {
    display: block;
    height: 100%;
    width: 40%;
    background: var(--accent);
    animation: glisse 1.1s ease-in-out infinite;
  }
  @keyframes glisse {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(350%); }
  }
  @media (prefers-reduced-motion: reduce) {
    .jauge i { animation: none; width: 100%; opacity: 0.5; }
  }

  /* --- Talon de ticket (signature) -------------------------------------- */

  .talon {
    background: var(--carte);
    border-radius: var(--rayon) var(--rayon) 0 0;
    padding: 1.5rem 1.3rem 1.9rem;
    position: relative;
    box-shadow: 0 1px 3px rgba(27, 42, 51, 0.08);
  }
  .talon::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: -11px;
    height: 12px;
    background:
      radial-gradient(circle at 6px 0, transparent 6px, var(--carte) 6px)
      repeat-x 0 0 / 12px 12px;
  }
  .talon h2 {
    font-family: var(--mono);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--sourdine);
    margin: 0 0 1.1rem;
    font-weight: 500;
  }
  .talon .enseigne {
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.01em;
    margin-bottom: 1.1rem;
  }
  .poste {
    display: flex;
    align-items: baseline;
    gap: 0.4rem;
    font-family: var(--mono);
    font-size: 0.88rem;
    padding: 0.32rem 0;
  }
  .poste dt { color: var(--sourdine); white-space: nowrap; }
  .poste .points {
    flex: 1;
    border-bottom: 1px dotted var(--trait);
    transform: translateY(-3px);
  }
  .poste dd { margin: 0; font-variant-numeric: tabular-nums; }
  .montant {
    margin-top: 1.1rem;
    padding-top: 0.9rem;
    border-top: 1px solid var(--encre);
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-family: var(--mono);
    font-size: 1.5rem;
    font-variant-numeric: tabular-nums;
  }
  .montant span:first-child {
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--sourdine);
  }
  .doute {
    margin-top: 1.2rem;
    background: #fdf3ec;
    color: var(--alerte);
    border-radius: 8px;
    padding: 0.7rem 0.85rem;
    font-size: 0.85rem;
    display: none;
  }
  .doute.visible { display: block; }

  .cache { display: none; }

  /* --- Écran de réglages ------------------------------------------------ */

  #reglages p { font-size: 0.92rem; color: var(--sourdine); }
  .lien-reglages {
    display: block;
    text-align: center;
    margin-top: 2rem;
    font-family: var(--mono);
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--sourdine);
    text-decoration: none;
  }