:root {
    --encre: #14171c;
    --papier: #f6f7f9;
    --bleu: #85c9f7b6;
    --bleu-clair: #359fd4;
    --gris: #b9bec7;
    --gris-clair: #e6e8ec;
  }
  
  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  
  body {
    background: var(--papier);
    color: var(--encre);
    font-family: system-ui, sans-serif;
    line-height: 1.5;
    padding: 40px 24px;
    max-width: 1100px;
    margin: 0 auto;
  }
  
  h1 {
    font-size: 28px;
    font-weight: 600;
    letter-spacing: -0.02em;
  }
  
  #calendrier {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 32px;
    margin-top: 32px;
  }
  
  .mois h2 {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 10px;
  }
  
  .grille {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 4px;
  }
  
  .jour-nom {
    font-size: 11px;
    color: #8b919b;
    text-align: center;
    padding-bottom: 4px;
  }
  
  .jour {
    aspect-ratio: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    font-size: 12px;
    font-variant-numeric: tabular-nums;
  }
  
  /* --- Les quatre états --- */
  
  .libre {
    background: var(--bleu);
    color: white;
  }
  
  .option {
    background: repeating-linear-gradient(
      45deg,
      var(--bleu), var(--bleu) 4px,
      var(--bleu-clair) 4px, var(--bleu-clair) 8px
    );
    color: white;
  }

  .indispo {
    background: var(--gris-clair);
    color: #a9aeb6;
    text-decoration: line-through;
  }

  .intro {
    color: #5a6069;
    margin-top: 8px;
  }
  
  .legende {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 8px 24px;
    margin-top: 20px;
    font-size: 13px;
    color: #5a6069;
  }
  
  .legende li {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  
  .pastille {
    width: 14px;
    height: 14px;
    border-radius: 4px;
    flex-shrink: 0;
  }