/* ============================================================
   Diaporama — vue vidéoprojecteur
   ============================================================ */

body.diapos {
  background: #10202e;
  overflow: hidden;
  font-size: 16px;
}

/* ---------- scène ---------- */

#scene { position: fixed; inset: 0 0 3.2rem 0; }

.slide {
  position: absolute;
  inset: 0;
  display: none;
  background: var(--papier);
  overflow-y: auto;
}
.slide.visible { display: flex; animation: fondu .25s ease; }

@keyframes fondu { from { opacity: 0; } to { opacity: 1; } }

.slide-in {
  margin: auto;
  width: min(72rem, 92vw);
  padding: 3vh 2vw;
}

/* ---------- typographie des diapos ---------- */

.slide h1 {
  font-family: var(--serif);
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.15;
  margin: 0 0 1.6rem;
}

.slide h2 {
  font-family: var(--serif);
  font-size: clamp(1.7rem, 3.6vw, 2.6rem);
  line-height: 1.2;
  color: var(--accent);
  margin: 0 0 1.4rem;
  padding-bottom: .5rem;
  border-bottom: 3px solid var(--ocre);
}

.slide h3 { font-size: clamp(1.2rem, 2.2vw, 1.6rem); margin: 1.2rem 0 .6rem; }

.slide p, .slide li {
  font-size: clamp(1.1rem, 2vw, 1.55rem);
  line-height: 1.55;
}

.slide ul, .slide ol { padding-left: 1.6em; }
.slide li { margin: .45em 0; }

.slide a { color: var(--accent); }

.slide blockquote {
  margin: 1.4rem 0;
  padding: 1.2rem 1.6rem;
  background: var(--ocre-clair);
  border-left: 6px solid var(--ocre);
  border-radius: 0 10px 10px 0;
}
.slide blockquote p {
  font-family: var(--serif);
  font-size: clamp(1.25rem, 2.4vw, 1.9rem);
  line-height: 1.45;
  margin: .4rem 0;
}

.slide .table-wrap { overflow-x: auto; margin: 1rem 0; }

.slide table {
  border-collapse: collapse;
  width: 100%;
  background: #fff;
  font-size: clamp(.9rem, 1.5vw, 1.2rem);
}
.slide th {
  background: var(--accent);
  color: #fff;
  text-align: left;
  padding: .5em .75em;
}
.slide td {
  padding: .45em .75em;
  border-bottom: 1px solid var(--ligne);
  vertical-align: top;
}
.slide tbody tr:nth-child(even) { background: #fbfaf7; }

.slide strong { color: #0d1b26; }
.slide code { background: #eeeae0; border-radius: 4px; padding: .05em .3em; font-size: .85em; }

/* diapositive de titre / de section */
.slide-titre { background: var(--encre); color: #f2f0ea; text-align: center; }
.slide-titre .slide-in { padding-bottom: 8vh; }
.slide-titre h1 { color: #fff; font-size: clamp(2.6rem, 6vw, 4.4rem); }
.slide-titre p { color: #c4cdd6; font-size: clamp(1.2rem, 2.4vw, 1.8rem); }
.slide-titre strong { color: var(--ocre); }
.slide-titre a { color: #9cc4e0; }

/* ---------- barre de contrôle ---------- */

#controles {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  height: 3.2rem;
  background: var(--encre);
  color: #d6dee6;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0 1rem;
  z-index: 40;
}

.ctrl-gauche, .ctrl-droite { display: flex; align-items: center; gap: .6rem; }

.ctrl-milieu {
  flex: 1;
  text-align: center;
  font-size: .85rem;
  color: #8fa1b1;
  overflow: hidden;
  white-space: nowrap;
  text-overflow: ellipsis;
}

#controles button {
  background: rgba(255, 255, 255, .1);
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  padding: .4rem .8rem;
  cursor: pointer;
  font-family: var(--sans);
}
#controles button:hover { background: rgba(255, 255, 255, .22); }

#btn-prec, #btn-suiv { font-size: 1.5rem; line-height: 1; padding: .15rem .9rem; }
#btn-suiv { background: var(--ocre); }
#btn-suiv:hover { background: #c8821f; }

#compteur { font-size: .9rem; color: #b9c4cf; min-width: 4.5rem; }

/* ---------- sommaire repliable ---------- */

#sommaire {
  position: fixed;
  top: 0; bottom: 3.2rem; left: 0;
  width: min(24rem, 85vw);
  background: #fff;
  border-right: 1px solid var(--ligne);
  box-shadow: 4px 0 18px rgba(16, 32, 46, .25);
  z-index: 45;
  overflow-y: auto;
  transition: transform .22s ease;
  padding: 1rem 1.2rem;
}
#sommaire.replie { transform: translateX(-102%); }

.som-tete { display: flex; align-items: center; justify-content: space-between; }

.som-titre {
  margin: .2rem 0 .6rem;
  font-weight: 700;
  font-size: .8rem;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--encre-doux);
}

#btn-fermer-som {
  background: none;
  border: none;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--encre-doux);
  padding: 0 .3rem;
}

#sommaire ol { margin: 0; padding-left: 1.6rem; }
#sommaire li { margin: .3rem 0; font-size: .92rem; }

#sommaire a {
  color: var(--encre);
  text-decoration: none;
  display: block;
  padding: .15rem .4rem;
  border-radius: 4px;
  line-height: 1.35;
}
#sommaire a:hover { background: var(--accent-clair); color: var(--accent); }
#sommaire a.actif { background: var(--accent); color: #fff; font-weight: 600; }