/* BOOK — SMARTPHONE PAYSAGE
   Priorité : conserver la composition desktop en format réduit.
   Le titre reste à gauche, la photo à droite, sans débordement.
*/
@media (max-width: 800px) and (orientation: landscape) {
  html, body {
    overflow-x: hidden;
  }

  .site-header {
    height: 52px;
    min-height: 52px;
    padding: 0 16px;
  }

  .brand strong {
    font-size: 17px;
    letter-spacing: .08em;
  }

  .brand span {
    font-size: 7px;
    letter-spacing: .12em;
  }

  .main-nav,
  .portal-link {
    display: none;
  }

  .menu-toggle {
    display: block;
    margin-left: auto;
    width: 30px;
    height: 28px;
  }

  .book-cover {
    box-sizing: border-box;
    position: relative;
    display: grid;
    grid-template-columns: minmax(0, 46%) minmax(0, 54%);
    grid-template-rows: minmax(0, 1fr);
    align-items: center;
    column-gap: 0;
    width: 100%;
    height: calc(100svh - 52px);
    min-height: 0;
    margin-top: 52px;
    padding: 28px 18px 30px;
    overflow: hidden;
  }

  .cover-meta {
    position: absolute;
    top: 16px;
    left: 18px;
    right: 18px;
    z-index: 5;
    font-size: 6px;
    letter-spacing: .15em;
  }

  .cover-copy {
    grid-column: 1;
    grid-row: 1;
    position: relative;
    left: auto;
    right: auto;
    bottom: auto;
    z-index: 3;
    width: 100%;
    max-width: 100%;
    min-width: 0;
    margin: 0;
    padding: 0 10px 0 0;
    transform: none;
    align-self: center;
    container-type: inline-size;
  }

  .cover-copy .eyebrow {
    margin-bottom: 8px;
    font-size: clamp(6px, 1.15vw, 9px);
    letter-spacing: .18em;
  }

  .cover-copy h1 {
    max-width: 100%;
    margin: 0;
    font-size: clamp(38px, 10.5vw, 84px);
    line-height: .72;
    letter-spacing: -.035em;
    white-space: nowrap;
  }

  .cover-rule {
    width: clamp(36px, 7vw, 70px);
    margin: clamp(12px, 2.2vh, 24px) 0 clamp(9px, 1.8vh, 18px);
  }

  .cover-intro {
    max-width: 95%;
    margin: 0;
    font-size: clamp(9px, 1.65vw, 15px);
    line-height: 1.25;
  }

  .cover-signature {
    margin-top: clamp(10px, 2vh, 20px);
    font-size: clamp(13px, 2.2vw, 22px);
  }

  .cover-image {
    grid-column: 2;
    grid-row: 1;
    position: relative;
    inset: auto;
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    width: 100%;
    height: 100%;
    min-width: 0;
    opacity: 1;
  }

  .cover-image img {
    display: block;
    width: auto;
    max-width: 100%;
    height: auto;
    max-height: calc(100svh - 92px);
    object-fit: contain;
    filter: none;
  }

  .cover-side {
    display: none;
  }

  .cover-scroll {
    left: 18px;
    right: auto;
    bottom: 10px;
    z-index: 5;
    font-size: 6px;
  }

  .cover-scroll span {
    font-size: 13px;
  }
}

@media (max-width: 560px) and (orientation: landscape) {
  .book-cover {
    grid-template-columns: minmax(0, 48%) minmax(0, 52%);
    padding-left: 14px;
    padding-right: 14px;
  }

  .cover-copy h1 {
    font-size: clamp(34px, 9.5vw, 62px);
  }

  .cover-intro {
    max-width: 100%;
    font-size: clamp(8px, 1.7vw, 12px);
  }

  .cover-signature {
    font-size: clamp(12px, 2vw, 17px);
  }
}

@media (max-width: 800px) and (orientation: landscape) and (max-height: 360px) {
  /* 780 × 318 est le cas critique : une vraie couverture compacte,
     pas une maquette desktop écrasée ni du contenu masqué. */
  .site-header { height:44px; min-height:44px; padding:0 14px; }
  .brand strong { font-size:15px; }
  .brand span { font-size:6px; }
  .book-cover {
    height:calc(100svh - 44px);
    margin-top:44px;
    grid-template-columns:minmax(0, 50%) minmax(0, 50%);
    padding:18px 16px 22px;
  }
  .cover-meta { top:8px; left:16px; right:16px; font-size:5px; }
  .cover-copy { padding-right:8px; }
  .cover-copy .eyebrow { display:none; }
  .cover-copy h1 { font-size:clamp(40px, 7.5vw, 58px); line-height:.69; }
  .cover-rule { width:32px; margin:10px 0 8px; }
  .cover-intro { display:block; max-width:100%; font-size:clamp(9px, 1.45vw, 11px); line-height:1.22; }
  .cover-signature { display:none; }
  .cover-image img { max-height:calc(100svh - 64px); }
  .cover-scroll { left:16px; bottom:7px; font-size:5px; }
  .cover-scroll span { font-size:11px; }
}