:root {
  --bg: #f6ecd9;
  --paper: #fffaf1;
  --ink: #4a3b2e;
  --ink-soft: #7a6a5a;
  --accent: #c96f4a;
  --accent-dark: #a85636;
  --accent-soft: #f0c9a8;
  --danger: #b5452f;
  --radius: 16px;
  --font-title: 'Playfair Display', Georgia, serif;
  --font-body: 'Lora', Georgia, serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background-color: var(--bg);
  /* Petit semis d'etoiles et de points, tres discret - juste assez pour que
     le fond ne soit pas un aplat tout plat. */
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cg fill='%23c96f4a' opacity='0.08'%3E%3Ccircle cx='18' cy='24' r='2.5'/%3E%3Ccircle cx='110' cy='18' r='2'/%3E%3Ccircle cx='70' cy='120' r='2.5'/%3E%3Ccircle cx='125' cy='95' r='2'/%3E%3Cpath d='M40 70 L43 78 L51 79 L45 84 L47 92 L40 87 L33 92 L35 84 L29 79 L37 78 Z'/%3E%3Cpath d='M95 40 L97 46 L103 47 L98 51 L100 57 L95 53 L90 57 L92 51 L87 47 L93 46 Z'/%3E%3C/g%3E%3C/svg%3E");
  background-repeat: repeat;
  color: var(--ink);
  font-family: var(--font-body);
}

a { color: var(--accent-dark); }

/* --- Navigation --- */
.topnav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  padding: 0.75rem 1.5rem;
  background: var(--paper);
  border-bottom: 3px solid var(--accent-soft);
  flex-wrap: wrap;
}
.topnav-brand {
  font-family: var(--font-title);
  font-weight: 700;
  font-size: 1.3rem;
  text-decoration: none;
  color: var(--accent-dark);
}
.topnav-links { display: flex; gap: 1rem; flex: 1; flex-wrap: wrap; }
.topnav-links a { text-decoration: none; font-weight: 600; color: var(--ink); }
.topnav-links a:hover { color: var(--accent-dark); }
.topnav-logout { display: flex; align-items: center; gap: 0.75rem; margin: 0; }
.topnav-username { font-weight: 600; color: var(--ink-soft); }
.topnav-logout button {
  background: none;
  border: 2px solid var(--accent-soft);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
}
.topnav-logout button:hover { background: var(--accent-soft); }

/* --- Login --- */
.login-body {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
}
.login-card {
  position: relative;
  background: var(--paper);
  padding: 2.5rem;
  border-radius: var(--radius);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12);
  width: 100%;
  max-width: 360px;
  text-align: center;
}
.login-flourish { color: var(--accent-soft); letter-spacing: 0.4em; margin: 0.25rem 0 0; font-size: 1rem; }
.login-card h1 { font-family: var(--font-title); font-size: 1.5rem; margin-top: 0; }
.login-card form { display: flex; flex-direction: column; gap: 1rem; margin-top: 1.5rem; text-align: left; }
.login-card label { display: flex; flex-direction: column; gap: 0.35rem; font-weight: 600; }
.login-card input { padding: 0.65rem 0.75rem; border-radius: 10px; border: 2px solid var(--accent-soft); font-size: 1rem; font-family: var(--font-body); }
.login-card button { margin-top: 0.5rem; }

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  font-family: var(--font-body);
}
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-secondary { background: var(--paper); color: var(--ink); border: 2px solid var(--accent-soft); }

.btn-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 2px solid var(--accent-soft);
  background: var(--paper);
  cursor: pointer;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--ink);
}
.btn-icon:hover { background: var(--accent-soft); }
.btn-icon:disabled { opacity: 0.3; cursor: not-allowed; }
.btn-icon-danger { color: var(--danger); }

.flash-error {
  background: #fbe4df;
  color: var(--danger);
  padding: 0.75rem 1rem;
  border-radius: 10px;
  font-weight: 600;
}

/* --- Book reader --- */
.book-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  padding: 2rem 1rem 3rem;
}
.book {
  position: relative;
  /* 80% de la largeur ET 80% de la hauteur d'ecran : le dernier terme
     convertit la limite de hauteur (80vh) en une limite de largeur
     equivalente pour ce ratio 4/3 (hauteur = largeur * 3/4). */
  width: min(1400px, 80vw, calc(80vh * 4 / 3));
  aspect-ratio: 4 / 3;
  perspective: 1800px;
}
.book-shadow {
  position: absolute;
  inset: 10px -6px -14px 10px;
  background: rgba(74, 59, 46, 0.25);
  border-radius: var(--radius);
  filter: blur(10px);
  z-index: 0;
}
.leaf {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  background: var(--paper);
  border-radius: var(--radius);
  box-shadow: 0 16px 40px rgba(74, 59, 46, 0.2);
  transform-origin: center;
  will-change: transform;
}
.leaf-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  display: flex;
  border-radius: var(--radius);
  overflow: hidden;
}

/* Mosaique "patchwork" : une grille 4x4 remplie par le texte + les photos de
   la page. Tailles de cellule fixes par position (nth-child) plutot que
   calculees en JS - varie naturellement l'allure de la page selon le nombre
   de photos, sans jamais laisser de grand vide (grid-auto-flow: dense). */
.leaf-page-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 1fr);
  grid-auto-flow: dense;
  gap: 10px;
  padding: 16px;
  background: var(--bg);
}

.patch { border-radius: 12px; overflow: hidden; }

.patch-text {
  grid-column: span 2;
  grid-row: span 2;
  background: var(--paper);
  padding: 1.5rem 1.4rem;
  overflow-y: auto;
  font-size: 1.1rem;
  line-height: 1.55;
  box-shadow: 0 4px 12px rgba(74, 59, 46, 0.1);
}
.patch-text p { margin: 0 0 0.75rem; }
.patch-text h1, .patch-text h2, .patch-text h3 { font-family: var(--font-title); color: var(--accent-dark); margin: 0 0 0.5rem; }
.patch-text ul, .patch-text ol { padding-left: 1.3rem; margin: 0 0 0.75rem; }
/* Page sans aucune photo : le texte occupe toute la mosaique, centre. */
.leaf-page-grid:not(:has(.patch-photo)) .patch-text {
  grid-column: 1 / -1;
  grid-row: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 1.3rem;
}

.patch-photo { background: var(--accent-soft); box-shadow: 0 4px 12px rgba(74, 59, 46, 0.15); }
.patch-photo img { width: 100%; height: 100%; object-fit: cover; display: block; }

.patch-photo:nth-child(2) { grid-column: span 2; grid-row: span 2; }
.patch-photo:nth-child(3) { grid-column: span 2; grid-row: span 1; }
.patch-photo:nth-child(4) { grid-column: span 1; grid-row: span 1; }
.patch-photo:nth-child(5) { grid-column: span 1; grid-row: span 1; }
.patch-photo:nth-child(6) { grid-column: span 2; grid-row: span 1; }
.patch-photo:nth-child(7) { grid-column: span 1; grid-row: span 1; }

.leaf-cover, .leaf-end {
  position: relative;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
  gap: 0.75rem;
  background: linear-gradient(180deg, var(--accent-soft), var(--paper));
}
.leaf-cover h1 {
  font-family: var(--font-title);
  font-size: clamp(1.6rem, 4vw, 2.6rem);
  margin: 0.5rem 0 0;
  color: var(--accent-dark);
}
.cover-image {
  max-width: 55%;
  max-height: 45%;
  object-fit: cover;
  border-radius: 12px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}
.cover-subtitle { font-style: italic; font-size: 1.1rem; margin: 0; }
.cover-hint { margin-top: 1rem; color: var(--ink-soft); font-size: 0.95rem; }

.leaf-end h2 { font-family: var(--font-title); font-size: 2rem; color: var(--accent-dark); margin: 0; }
.end-mark { font-size: 2.5rem; margin: 0; }

.book-controls {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.book-arrow {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: var(--accent);
  color: #fff;
  font-size: 1.4rem;
  cursor: pointer;
}
.book-arrow:hover { background: var(--accent-dark); }
.book-arrow:disabled { opacity: 0.3; cursor: not-allowed; }
.page-indicator { font-weight: 600; color: var(--ink-soft); min-width: 7rem; text-align: center; }

@media (max-width: 640px) {
  .book {
    aspect-ratio: 3 / 4;
    /* Meme logique que ci-dessus, mais pour ce ratio 3/4 (hauteur =
       largeur * 4/3) : la limite de largeur equivalente a 80vh est 60vh. */
    width: min(80vw, calc(80vh * 3 / 4));
  }
  .leaf-page-grid { grid-template-columns: repeat(2, 1fr); gap: 8px; padding: 10px; }
  .patch-text { grid-column: span 2; grid-row: span 2; font-size: 1rem; padding: 1.1rem; }
  .patch-photo:nth-child(2) { grid-column: span 2; grid-row: span 2; }
  .patch-photo:nth-child(3) { grid-column: span 1; grid-row: span 1; }
  .patch-photo:nth-child(4) { grid-column: span 1; grid-row: span 1; }
  .patch-photo:nth-child(5) { grid-column: span 2; grid-row: span 1; }
  .patch-photo:nth-child(6) { grid-column: span 1; grid-row: span 1; }
  .patch-photo:nth-child(7) { grid-column: span 1; grid-row: span 1; }
}

/* --- Admin screens --- */
.admin-wrap { max-width: 900px; margin: 0 auto; padding: 2rem 1.25rem 4rem; }
.admin-wrap-narrow { max-width: 560px; }
.admin-header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.admin-wrap h1 { font-family: var(--font-title); color: var(--accent-dark); }
.empty-hint { color: var(--ink-soft); font-size: 1.1rem; }

.page-rows, .user-rows { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.75rem; }
.page-row, .user-row {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--paper);
  border-radius: 14px;
  padding: 0.75rem 1rem;
  box-shadow: 0 4px 14px rgba(74, 59, 46, 0.08);
}
.page-row-num { font-weight: 700; color: var(--accent-dark); width: 1.5rem; }
.page-row-thumb { width: 64px; height: 64px; border-radius: 10px; object-fit: cover; }
.page-row-thumb-empty { background: var(--accent-soft); }
.page-row-thumb-wrap { position: relative; display: inline-block; }
.page-row-thumb-count {
  position: absolute;
  bottom: -4px;
  right: -4px;
  background: var(--accent-dark);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 999px;
}
.page-row-text { flex: 1; margin: 0; color: var(--ink-soft); }
.page-row-actions, .user-row .page-row-actions { display: flex; gap: 0.5rem; margin-left: auto; }
.page-row-actions form { margin: 0; }

.role-badge {
  display: inline-block;
  margin-left: 0.75rem;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  background: var(--accent-soft);
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--accent-dark);
}

.big-form { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 1.5rem; }
.field { display: flex; flex-direction: column; gap: 0.5rem; font-weight: 600; }
.field input[type="text"],
.field input[type="password"],
.field textarea,
.field select {
  padding: 0.7rem 0.85rem;
  border-radius: 10px;
  border: 2px solid var(--accent-soft);
  font-size: 1rem;
  font-family: var(--font-body);
}
.file-picker { display: flex; align-items: center; gap: 1rem; flex-wrap: wrap; }
.file-picker-input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
}
.file-picker-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.3rem;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
  white-space: nowrap;
}
.file-picker-button:hover { background: var(--accent-dark); }
.file-picker-icon { font-size: 1.1rem; }
.file-picker-status { color: var(--ink-soft); font-weight: 500; font-style: italic; }
.field-preview { max-width: 220px; border-radius: 10px; }

.image-grid { list-style: none; display: flex; flex-wrap: wrap; gap: 0.75rem; padding: 0; margin: 0; }
.image-grid-item { display: flex; flex-direction: column; align-items: center; gap: 0.35rem; }
.image-grid-item img { width: 110px; height: 110px; object-fit: cover; border-radius: 10px; }

.quill-editor {
  background: #fff;
  border-radius: 10px;
  overflow: hidden;
}
.quill-editor .ql-editor { min-height: 160px; font-family: var(--font-body); font-size: 1.05rem; }
.quill-editor .ql-toolbar { border-color: var(--accent-soft); border-radius: 10px 10px 0 0; }
.quill-editor .ql-container { border-color: var(--accent-soft); border-radius: 0 0 10px 10px; }
.checkbox-line { display: flex; align-items: center; gap: 0.5rem; font-weight: 500; }
.form-actions { display: flex; gap: 1rem; justify-content: flex-end; }