:root{
    --ink: #211a15;
    --ink-soft: #4a4038;
    --paper: #ece1c3;
    --paper-deep: #e2d4ae;
    --card: #f4ecd6;
    --line: #c9b98c;
    --accent: #7b2d26;   /* rouge encre / tampon */
    --accent-soft: #a6483d;
    --green: #3f4b3d;    /* vert bouteille, sections */
    --gold: #a9822f;     /* dorure, cote de bibliothèque */
    --shadow: rgba(33, 26, 21, 0.18);

    --display: "Fraunces", serif;
    --body: "Source Serif 4", serif;
    --mono: "Space Mono", monospace;
  }

  *{ box-sizing: border-box; }

  html{ scroll-behavior: smooth; }

  body{
    margin: 0;
    background:
      radial-gradient(ellipse at top, rgba(255,255,255,0.15), transparent 60%),
      var(--paper);
    color: var(--ink);
    font-family: var(--body);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
  }

  /* texture papier discrète */
  body::before{
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.05;
    background-image:
      repeating-linear-gradient(0deg, var(--ink) 0px, transparent 1px, transparent 3px),
      repeating-linear-gradient(90deg, var(--ink) 0px, transparent 1px, transparent 3px);
    background-size: 3px 3px;
    mix-blend-mode: multiply;
    z-index: 0;
  }

  a{ color: inherit; }

  ::selection{ background: var(--accent); color: var(--card); }

  :focus-visible{
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 2px;
  }

  .wrap{
    position: relative;
    z-index: 1;
    max-width: 980px;
    margin: 0 auto;
    padding: 0 clamp(1.25rem, 4vw, 2.5rem) 6rem;
  }

  /* ---------- En-tête ---------- */

  header.masthead{
    position: relative;
    padding: clamp(2.5rem, 7vw, 4.5rem) 0 2rem;
    text-align: center;
    border-bottom: 3px double var(--line);
    margin-bottom: 2.75rem;
  }

  .sr-only{
    position: absolute;
    width: 1px; height: 1px;
    padding: 0; margin: -1px;
    overflow: hidden;
    clip: rect(0,0,0,0);
    white-space: nowrap;
    border: 0;
  }

  /* ---------- Zone admin (cadenas / connexion / liens) ---------- */

  .admin-area{
    position: absolute;
    top: clamp(1rem, 3vw, 1.5rem);
    right: 0;
    display: flex;
    align-items: flex-start;
    gap: 0.6rem;
    z-index: 6;
  }

  .lock-btn{
    width: 2.1rem;
    height: 2.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 50%;
    color: var(--ink-soft);
    cursor: pointer;
    transition: color 0.15s ease, border-color 0.15s ease;
  }
  .lock-btn:hover{
    color: var(--accent);
    border-color: var(--accent);
  }

  .login-popover{
    position: absolute;
    top: 2.6rem;
    right: 0;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0.75rem;
    box-shadow: 0 12px 24px -12px var(--shadow);
    width: 200px;
  }
  .login-popover input[type="password"]{
    font-family: var(--body);
    font-size: 0.9rem;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: var(--paper);
    color: var(--ink);
  }
  .login-popover input:focus{ outline: none; border-color: var(--accent); }
  .login-popover button{
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    padding: 0.4rem 0.6rem;
    border: 1px solid var(--green);
    border-radius: 6px;
    background: var(--green);
    color: var(--card);
    cursor: pointer;
  }
  .login-popover button:hover{ background: var(--accent); border-color: var(--accent); }
  .login-error{
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--accent);
    margin: 0;
    min-height: 1em;
  }

  .admin-controls{
    display: flex;
    align-items: center;
    gap: 0.6rem;
    font-family: var(--mono);
    font-size: 0.75rem;
  }
  .admin-link{
    color: var(--green);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.35rem 0.75rem;
    text-decoration: none;
    background: var(--card);
    cursor: pointer;
    white-space: nowrap;
  }
  .admin-link:hover{ border-color: var(--green); }
  .admin-link-btn{
    font-family: var(--mono);
    color: var(--ink-soft);
  }
  .admin-link-btn:hover{ color: var(--accent); border-color: var(--accent); }

  @media (max-width: 560px){
    .admin-area{ position: static; justify-content: flex-end; margin-bottom: 1rem; }
    .login-popover{ right: 0; left: auto; }
  }

  /* Corrige un conflit de spécificité CSS : sans cette règle, .lock-btn / .login-popover /
     .admin-controls (display:flex) l'emportaient sur la règle native [hidden]{display:none},
     ce qui affichait ces éléments même quand l'attribut "hidden" était présent. */
  .lock-btn[hidden],
  .login-popover[hidden],
  .admin-controls[hidden],
  .modal-admin-actions[hidden]{
    display: none;
  }

  .eyebrow{
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.24em;
    text-transform: uppercase;
    color: var(--green);
    margin: 0 0 0.9rem;
  }

  h1.title{
    font-family: var(--display);
    font-weight: 600;
    font-size: clamp(2.4rem, 6vw, 4rem);
    line-height: 1.02;
    margin: 0 0 0.6rem;
    letter-spacing: -0.01em;
  }

  h1.title em{
    font-style: italic;
    font-weight: 500;
    color: var(--accent);
  }

  .subtitle{
    font-family: var(--body);
    font-style: italic;
    color: var(--ink-soft);
    font-size: 1.05rem;
    margin: 0 0 1.6rem;
  }

  .tally{
    display: inline-flex;
    gap: 1.1rem;
    flex-wrap: wrap;
    justify-content: center;
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--ink-soft);
  }
  .tally b{
    color: var(--ink);
    font-weight: 700;
  }
  .tally span{
    padding: 0.15rem 0.65rem;
    border: 1px solid var(--line);
    border-radius: 999px;
    background: var(--card);
  }

  /* ---------- Barre de contrôle ---------- */

  .controls{
    position: sticky;
    top: 0;
    z-index: 5;
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1rem;
    margin-bottom: 2.25rem;
    background: rgba(236, 225, 195, 0.92);
    backdrop-filter: blur(6px);
    border: 1px solid var(--line);
    border-radius: 10px;
    box-shadow: 0 6px 18px -12px var(--shadow);
  }

  .controls .search{
    flex: 1 1 220px;
    position: relative;
  }

  .controls input[type="search"]{
    width: 100%;
    font-family: var(--body);
    font-size: 0.95rem;
    padding: 0.55rem 0.9rem 0.55rem 2rem;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--card) url('data:image/svg+xml;utf8,<svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" viewBox="0 0 24 24" fill="none" stroke="%234a4038" stroke-width="2"><circle cx="11" cy="11" r="7"/><line x1="21" y1="21" x2="16.65" y2="16.65"/></svg>') no-repeat 0.65rem center;
    color: var(--ink);
  }
  .controls input[type="search"]:focus{ outline: none; border-color: var(--accent); }

  .seg{
    display: inline-flex;
    border: 1px solid var(--line);
    border-radius: 7px;
    overflow: hidden;
    font-family: var(--mono);
    font-size: 0.75rem;
  }
  .seg button{
    border: none;
    background: var(--card);
    color: var(--ink-soft);
    padding: 0.5rem 0.8rem;
    cursor: pointer;
    letter-spacing: 0.03em;
  }
  .seg button + button{ border-left: 1px solid var(--line); }
  .seg button[aria-pressed="true"]{
    background: var(--green);
    color: var(--card);
  }

  .sort{
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--ink-soft);
    display: flex;
    align-items: center;
    gap: 0.5rem;
  }
  .sort select{
    font-family: var(--mono);
    font-size: 0.75rem;
    padding: 0.45rem 0.5rem;
    border: 1px solid var(--line);
    border-radius: 7px;
    background: var(--card);
    color: var(--ink);
  }

  /* ---------- Sections par siècle ---------- */

  .century-section{ margin-bottom: 3rem; }

  .century-heading{
    display: flex;
    align-items: baseline;
    gap: 0.9rem;
    margin: 0 0 1.1rem;
  }
  .century-heading .roman{
    font-family: var(--display);
    font-weight: 700;
    font-style: italic;
    font-size: 1.6rem;
    color: var(--accent);
    min-width: 3ch;
  }
  .century-heading .label{
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--green);
  }
  .century-heading .author-nom{
    font-family: var(--display);
    font-weight: 700;
    font-style: italic;
    font-size: 1.4rem;
    color: var(--accent);
    white-space: nowrap;
  }
  .century-heading .author-prenom{
    font-family: var(--body);
    font-style: italic;
    font-size: 1.05rem;
    color: var(--ink-soft);
    white-space: nowrap;
  }
  .century-heading .rule{
    flex: 1;
    height: 1px;
    background: repeating-linear-gradient(90deg, var(--line) 0 6px, transparent 6px 10px);
  }

  .grid{
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1.1rem;
  }

  /* ---------- Fiche livre ---------- */

  .card{
    position: relative;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 3px;
    padding: 1.1rem 1.2rem 1.25rem;
    box-shadow: 0 8px 16px -12px var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    opacity: 0;
    transform: translateY(10px);
    animation: rise 0.5s ease forwards;
    animation-delay: var(--d, 0s);
    cursor: pointer;
    transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
  }
  .card:hover,
  .card:focus-visible{
    transform: translateY(-6px) rotate(-0.3deg);
    box-shadow: 0 18px 28px -14px var(--shadow);
    border-color: var(--accent-soft);
  }
  .card:active{
    transform: translateY(-2px) rotate(0deg);
    transition-duration: 0.08s;
  }
  /* perforation façon fiche cartonnée */
  .card::before{
    content: "";
    position: absolute;
    left: 0; top: 10px; bottom: 10px;
    width: 3px;
    background: repeating-linear-gradient(180deg, var(--line) 0 4px, transparent 4px 9px);
    opacity: 0.8;
  }

  @keyframes rise{
    to{ opacity: 1; transform: translateY(0); }
  }

  .card-top{
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 0.6rem;
  }

  .call-number{
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--gold);
    letter-spacing: 0.06em;
    white-space: nowrap;
    padding-top: 0.2rem;
  }

  .card-top-right{
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0.35rem;
  }

  .year-badge{
    font-family: var(--mono);
    font-size: 0.68rem;
    color: var(--ink-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 0.08rem 0.55rem;
    white-space: nowrap;
  }

  .card h3{
    font-family: var(--display);
    font-weight: 600;
    font-size: 1.18rem;
    line-height: 1.22;
    margin: 0;
  }

  .authors{
    font-style: italic;
    color: var(--ink-soft);
    font-size: 0.95rem;
    margin: 0;
  }

  .card .meta-line{
    margin-top: auto;
    display: flex;
    gap: 0.5rem;
    align-items: center;
    padding-top: 0.5rem;
    border-top: 1px dashed var(--line);
  }

  .status{
    font-family: var(--mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
    color: var(--ink-soft);
  }

  .tag{
    font-family: var(--mono);
    font-size: 0.66rem;
    letter-spacing: 0.05em;
    padding: 0.22rem 0.55rem;
    border-radius: 999px;
    border: 1px solid transparent;
    white-space: nowrap;
  }
  .tag-filled{
    background: rgba(63, 75, 61, 0.14);
    border-color: var(--green);
    color: var(--green);
  }
  .tag-empty{
    background: transparent;
    border-color: var(--line);
    color: var(--ink-soft);
    opacity: 0.65;
  }

  .stamp{
    font-family: var(--display);
    font-weight: 700;
    font-style: italic;
    font-size: 0.82rem;
    letter-spacing: 0.05em;
    color: var(--accent);
    border: 2px solid var(--accent);
    border-radius: 5px;
    padding: 0.08rem 0.5rem;
    transform: rotate(-9deg);
    opacity: 0.85;
    white-space: nowrap;
  }

  /* ---------- États vides / erreurs ---------- */

  .notice{
    text-align: center;
    padding: 3rem 1rem;
    font-family: var(--body);
    color: var(--ink-soft);
  }
  .notice strong{ display:block; font-family: var(--display); font-size: 1.3rem; color: var(--ink); margin-bottom: 0.4rem; }

  /* ---------- Fenêtre modale (résumé / avis) ---------- */

  .modal-backdrop{
    position: fixed;
    inset: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    align-items: safe center;
    justify-content: center;
    padding: 1.5rem;
    background: rgba(33, 26, 21, 0.55);
    backdrop-filter: blur(3px);
    opacity: 0;
    transition: opacity 0.2s ease;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  .modal-backdrop.is-open{ opacity: 1; }
  .modal-backdrop[hidden]{ display: none; }

  .modal{
    position: relative;
    width: min(560px, 100%);
    max-height: min(80vh, 640px);
    max-height: min(80dvh, 640px);
    margin: auto 0;
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 6px;
    padding: 2.2rem 2rem 2rem;
    box-shadow: 0 30px 60px -20px rgba(0,0,0,0.5);
    transform: translateY(14px) scale(0.98);
    opacity: 0;
    transition: transform 0.22s ease, opacity 0.22s ease;
  }
  .modal-backdrop.is-open .modal{
    transform: translateY(0) scale(1);
    opacity: 1;
  }

  .modal-close{
    position: absolute;
    top: 0.7rem;
    right: 0.9rem;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--card);
    border: 1px solid var(--line);
    border-radius: 50%;
    font-size: 1.3rem;
    line-height: 1;
    color: var(--ink-soft);
    cursor: pointer;
    z-index: 1;
    transition: color 0.15s ease, border-color 0.15s ease, transform 0.15s ease;
  }
  .modal-close:hover{
    color: var(--accent);
    border-color: var(--accent);
    transform: rotate(90deg);
  }

  .modal-eyebrow{
    font-family: var(--mono);
    font-size: 0.7rem;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--green);
    margin: 0 0 0.6rem;
    flex: none;
  }

  .modal h2{
    font-family: var(--display);
    font-weight: 600;
    font-size: 1.7rem;
    line-height: 1.15;
    margin: 0 0 0.3rem;
    flex: none;
  }

  .modal-authors{
    font-style: italic;
    color: var(--ink-soft);
    margin: 0 0 1.4rem;
    flex: none;
  }

  .modal-body{
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-top: 1px dashed var(--line);
    padding-top: 1.2rem;
    min-height: 0;
    flex: 1 1 auto;
    overflow-y: auto;
  }

  .modal-block{
    flex: 1 1 auto;
    min-height: 0;
    display: flex;
    flex-direction: column;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: rgba(33, 26, 21, 0.035);
    padding: 0.85rem 1rem 0.95rem;
  }

  .modal-block h3{
    font-family: var(--mono);
    font-size: 0.72rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gold);
    margin: 0 0 0.5rem;
    flex: none;
  }

  .modal-block .block-scroll{
    overflow-y: auto;
    min-height: 0;
    max-height: 30vh;
    -webkit-mask-image: linear-gradient(to bottom, black calc(100% - 14px), transparent 100%);
    mask-image: linear-gradient(to bottom, black calc(100% - 14px), transparent 100%);
    scrollbar-width: thin;
    scrollbar-color: var(--gold) transparent;
  }
  .modal-block .block-scroll::-webkit-scrollbar{ width: 7px; }
  .modal-block .block-scroll::-webkit-scrollbar-track{ background: transparent; }
  .modal-block .block-scroll::-webkit-scrollbar-thumb{
    background: var(--gold);
    border-radius: 999px;
  }

  .modal-block p{
    margin: 0;
    color: var(--ink);
  }
  .modal-block p.empty{
    color: var(--ink-soft);
    font-style: italic;
  }

  .modal-admin-actions{
    display: flex;
    justify-content: flex-end;
    gap: 0.6rem;
    margin-top: 1.1rem;
    padding-top: 1rem;
    border-top: 1px dashed var(--line);
    flex: none;
  }
  .modal-admin-actions .btn-secondary{
    font-family: var(--mono);
    font-size: 0.75rem;
    letter-spacing: 0.04em;
    padding: 0.45rem 0.85rem;
    border-radius: 7px;
    border: 1px solid var(--line);
    background: transparent;
    color: var(--ink-soft);
    text-decoration: none;
    cursor: pointer;
  }
  .modal-admin-actions .btn-secondary:hover{
    color: var(--ink);
    border-color: var(--ink-soft);
  }
  .modal-admin-actions .btn-secondary.danger:hover{
    color: var(--accent);
    border-color: var(--accent);
  }

  footer{
    text-align: center;
    font-family: var(--mono);
    font-size: 0.7rem;
    color: var(--ink-soft);
    letter-spacing: 0.05em;
    padding-top: 2rem;
  }

  @media (prefers-reduced-motion: reduce){
    html{ scroll-behavior: auto; }
    .card{ animation: none; opacity: 1; transform: none; }
    .card:hover, .card:focus-visible{ transform: none; }
    .modal, .modal-backdrop{ transition: none; }
  }

  @media (max-width: 560px){
    .controls{ position: static; }
    .century-heading .label{ display:none; }

    .modal-admin-actions{
      flex-direction: column-reverse;
      align-items: stretch;
    }
    .modal-admin-actions .btn-secondary{
      text-align: center;
      justify-content: center;
    }

    /* Sur mobile, une seule zone de scroll (la modale elle-même) au lieu de
       3 zones imbriquées (modal / modal-body / block-scroll) : plus fiable
       sur les navigateurs mobiles, et les boutons restent atteignables en
       faisant simplement défiler la fiche jusqu'en bas. */
    .modal{
      max-height: 90vh;
      max-height: 90dvh;
      overflow-y: auto;
      -webkit-overflow-scrolling: touch;
    }
    .modal-body{
      flex: none;
      overflow: visible;
    }
    .modal-block{
      flex: none;
    }
    .modal-block .block-scroll{
      max-height: none;
      overflow: visible;
      -webkit-mask-image: none;
      mask-image: none;
    }
  }