/* Atlas du temps — palette de la charte Nidello (argile, encre, ivoire). */
:root {
  --fond: #FCFAF6;
  --surface: #F5EEE4;
  --ligne: #E6DCCC;
  --encre: #241E1A;
  --discret: #6B5F55;
  --accent: #C0603A;
  --accent-fort: #8F4526;
  --mer: #E9EEF0;
  --terre: #F3EDE3;
  --terre-trait: #CDBFAA;
  --epoque-trait: #8C7B68;
  --ombre: 0 1px 3px rgb(36 30 26 / 0.12), 0 6px 18px rgb(36 30 26 / 0.08);

  /* Six sujets : couleurs distinctes, contrastées sur l'ivoire comme sur le sombre. */
  --s-pol: #B23A48;
  --s-sci: #2B6FB0;
  --s-art: #8A55B5;
  --s-rel: #9C7A12;
  --s-exp: #1F8A63;
  --s-cat: #D0632A;

  --r: 10px;
  --gouttiere: 16px;
  --police: system-ui, -apple-system, "Segoe UI", "Noto Sans", "Hiragino Sans", "PingFang SC", "Apple SD Gothic Neo", "Geeza Pro", sans-serif;
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --fond: #191512; --surface: #221C18; --ligne: #352C25; --encre: #F2EBE1; --discret: #A69789;
    --accent: #DA8058; --accent-fort: #EC9670; --mer: #141B1F; --terre: #2A231E; --terre-trait: #4A3E34;
    --epoque-trait: #9C8B78; --ombre: 0 1px 3px rgb(0 0 0 / 0.5), 0 6px 18px rgb(0 0 0 / 0.35);
    --s-pol: #EE6F7C; --s-sci: #6AAEF0; --s-art: #C595EE; --s-rel: #E2C04F; --s-exp: #4CCB98; --s-cat: #F49A5E;
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --fond: #191512; --surface: #221C18; --ligne: #352C25; --encre: #F2EBE1; --discret: #A69789;
  --accent: #DA8058; --accent-fort: #EC9670; --mer: #141B1F; --terre: #2A231E; --terre-trait: #4A3E34;
  --epoque-trait: #9C8B78; --ombre: 0 1px 3px rgb(0 0 0 / 0.5), 0 6px 18px rgb(0 0 0 / 0.35);
  --s-pol: #EE6F7C; --s-sci: #6AAEF0; --s-art: #C595EE; --s-rel: #E2C04F; --s-exp: #4CCB98; --s-cat: #F49A5E;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }
html, body { margin: 0; }
body {
  background: var(--fond); color: var(--encre); font: 15px/1.45 var(--police);
  min-height: 100svh; display: flex; flex-direction: column;
  -webkit-text-size-adjust: 100%;
}
a { color: var(--accent-fort); text-underline-offset: 2px; }
:root[data-theme="dark"] a { color: var(--accent); }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) a { color: var(--accent); } }
button, select, input { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.visuel-masque { position: absolute !important; inline-size: 1px; block-size: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }
.evitement { position: absolute; inset-inline-start: 8px; inset-block-start: -40px; background: var(--encre); color: var(--fond); padding: 6px 10px; border-radius: 6px; z-index: 50; }
.evitement:focus { inset-block-start: 8px; }

.bouton-icone {
  inline-size: 36px; block-size: 36px; display: inline-grid; place-items: center;
  border: 1px solid var(--ligne); background: var(--fond); border-radius: 8px; cursor: pointer; font-size: 18px; line-height: 1;
}
.bouton-icone svg { inline-size: 18px; block-size: 18px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }
.bouton-icone:hover { border-color: var(--discret); }
.bouton-texte {
  border: 1px solid var(--ligne); background: var(--fond); border-radius: 8px; padding: 6px 12px; cursor: pointer; min-block-size: 36px;
}
.bouton-texte:hover { border-color: var(--discret); }

/* En-tête */
.entete {
  display: flex; align-items: center; gap: 12px; padding: 10px var(--gouttiere);
  border-block-end: 1px solid var(--ligne); flex-wrap: wrap;
}
.marque { display: flex; align-items: center; gap: 8px; color: inherit; text-decoration: none; font-weight: 650; letter-spacing: 0.01em; }
.marque-icone { inline-size: 26px; block-size: 26px; color: var(--accent); }
.marque-nom { font-size: 17px; white-space: nowrap; }
.recherche { position: relative; flex: 1 1 260px; max-inline-size: 520px; }
.recherche input {
  inline-size: 100%; block-size: 38px; padding-inline: 12px; border: 1px solid var(--ligne); border-radius: 19px; background: var(--surface);
}
.recherche input::placeholder { color: var(--discret); }
.resultats {
  position: absolute; inset-inline: 0; inset-block-start: 42px; z-index: 40; margin: 0; padding: 4px; list-style: none;
  background: var(--fond); border: 1px solid var(--ligne); border-radius: var(--r); box-shadow: var(--ombre); max-block-size: 60vh; overflow: auto;
}
.resultats li { padding: 8px 10px; border-radius: 6px; cursor: pointer; display: flex; gap: 8px; align-items: baseline; }
.resultats li[aria-selected="true"], .resultats li:hover { background: var(--surface); }
.resultats .res-type { font-size: 12px; color: var(--discret); margin-inline-start: auto; white-space: nowrap; }
.resultats .res-vide { color: var(--discret); cursor: default; }
.outils { display: flex; align-items: center; gap: 8px; margin-inline-start: auto; }
.langue, .region {
  block-size: 36px; border: 1px solid var(--ligne); border-radius: 8px; background: var(--fond); padding-inline: 8px; max-inline-size: 11em;
}

/* Disposition : sur ordinateur, la page tient dans la fenêtre ; la liste défile dans son panneau. */
@media (min-width: 861px) {
  body { block-size: 100svh; overflow: hidden; }
}
.atlas { flex: 1; display: grid; grid-template-columns: minmax(0, 1fr) 360px; grid-template-rows: minmax(0, 1fr); min-block-size: 0; }
.scene { display: flex; flex-direction: column; min-inline-size: 0; border-inline-end: 1px solid var(--ligne); }
.commandes { display: flex; flex-wrap: wrap; gap: 8px 12px; align-items: center; padding: 8px var(--gouttiere); }
.sujets { display: flex; flex-wrap: wrap; gap: 6px; }
.sujet {
  display: inline-flex; align-items: center; gap: 6px; border: 1px solid var(--ligne); background: var(--fond); border-radius: 16px;
  padding: 4px 11px 4px 9px; cursor: pointer; font-size: 13.5px; min-block-size: 32px;
}
.sujet .pastille { inline-size: 10px; block-size: 10px; border-radius: 50%; background: var(--c); flex: none; }
.sujet[aria-pressed="false"] { color: var(--discret); }
.sujet[aria-pressed="false"] .pastille { background: transparent; box-shadow: inset 0 0 0 1.5px var(--c); }
.commandes-droite { display: flex; gap: 8px; align-items: center; margin-inline-start: auto; flex-wrap: wrap; }
.bascule { display: inline-flex; border: 1px solid var(--ligne); border-radius: 8px; overflow: hidden; }
.bascule button { border: 0; background: var(--fond); padding: 6px 10px; cursor: pointer; font-size: 13.5px; min-block-size: 34px; }
.bascule button + button { border-inline-start: 1px solid var(--ligne); }
.bascule button[aria-pressed="true"] { background: var(--encre); color: var(--fond); }

.carte-cadre { position: relative; flex: 1; min-block-size: 320px; background: var(--mer); overflow: hidden; }
.carte { position: absolute; inset: 0; inline-size: 100%; block-size: 100%; touch-action: none; cursor: grab; display: block; }
.carte:active { cursor: grabbing; }
.carte:focus-visible { outline-offset: -3px; }
.zoom { position: absolute; inset-inline-end: 10px; inset-block-start: 10px; display: flex; flex-direction: column; gap: 6px; }
.zoom .bouton-icone { box-shadow: var(--ombre); }
.infobulle {
  position: absolute; pointer-events: none; z-index: 5; max-inline-size: 260px; background: var(--fond); color: var(--encre);
  border: 1px solid var(--ligne); border-radius: 8px; padding: 6px 9px; font-size: 13px; box-shadow: var(--ombre);
}
.infobulle strong { display: block; font-weight: 600; }
.infobulle span { color: var(--discret); }
.mention-frontieres {
  position: absolute; inset-inline-start: 10px; inset-block-end: 8px; margin: 0; font-size: 12px; color: var(--discret);
  background: color-mix(in srgb, var(--fond) 85%, transparent); padding: 3px 8px; border-radius: 6px; max-inline-size: calc(100% - 20px);
}
.chargement { position: absolute; inset-inline-start: 10px; inset-block-start: 10px; margin: 0; font-size: 12.5px; color: var(--discret); }
.chargement:empty { display: none; }

/* Ligne du temps */
.temps { display: flex; gap: 12px; align-items: flex-start; padding: 10px var(--gouttiere) 12px; border-block-start: 1px solid var(--ligne); }
.lecture { margin-block-start: 18px; flex: none; }
.lecture svg { fill: currentColor; stroke: none; }
.frise { flex: 1; min-inline-size: 0; }
.periode { font-weight: 600; font-variant-numeric: tabular-nums; min-block-size: 22px; }
.ligne { position: relative; block-size: 40px; margin-block-start: 4px; touch-action: none; }
.densite { position: absolute; inset: 0 0 8px 0; inline-size: 100%; block-size: 32px; }
.plage {
  position: absolute; inset-block: 0 8px; background: color-mix(in srgb, var(--accent) 16%, transparent);
  border-block-end: 3px solid var(--accent); cursor: grab; border-radius: 4px 4px 0 0;
}
.poignee {
  position: absolute; inset-block-start: 14px; inline-size: 22px; block-size: 22px; margin-inline-start: -11px; border-radius: 50%;
  background: var(--fond); border: 2px solid var(--accent); box-shadow: var(--ombre); cursor: ew-resize; touch-action: none;
}
.poignee:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }
.graduations { position: relative; block-size: 18px; font-size: 11.5px; color: var(--discret); font-variant-numeric: tabular-nums; }
.graduations span { position: absolute; transform: translateX(-50%); white-space: nowrap; }
.graduations span::before { content: ""; position: absolute; inset-inline-start: 50%; inset-block-start: -5px; inline-size: 1px; block-size: 4px; background: var(--ligne); }

/* Panneau */
.panneau { display: flex; flex-direction: column; min-block-size: 0; background: var(--fond); overflow: hidden; }
.vue-liste { display: flex; flex-direction: column; min-block-size: 0; flex: 1; }
.liste-entete { padding: 12px var(--gouttiere) 8px; border-block-end: 1px solid var(--ligne); }
.liste-entete h2 { margin: 0; font-size: 16px; }
.compte { margin: 2px 0 8px; color: var(--discret); font-size: 13px; }
.tri { display: inline-flex; gap: 4px; }
.tri button { border: 1px solid var(--ligne); background: var(--fond); border-radius: 14px; padding: 3px 10px; font-size: 13px; cursor: pointer; min-block-size: 30px; }
.tri button[aria-pressed="true"] { background: var(--encre); color: var(--fond); border-color: var(--encre); }
.liste { list-style: none; margin: 0; padding: 4px 0; overflow: auto; flex: 1; min-block-size: 0; }
.liste li button {
  inline-size: 100%; text-align: start; border: 0; background: none; padding: 8px var(--gouttiere); cursor: pointer;
  display: grid; grid-template-columns: 10px 1fr; gap: 2px 10px; align-items: baseline;
}
.liste li button:hover, .liste li button:focus-visible { background: var(--surface); }
.liste .pastille { inline-size: 9px; block-size: 9px; border-radius: 50%; background: var(--c); grid-row: span 2; align-self: center; }
.liste .l-titre { font-weight: 550; }
.liste .l-date { font-size: 12.5px; color: var(--discret); font-variant-numeric: tabular-nums; }
.liste .l-vide { padding: 16px var(--gouttiere); color: var(--discret); }

.fiche { padding: 12px var(--gouttiere) 20px; overflow: auto; flex: 1; }
.retour { margin-block-end: 12px; }
.retour::before { content: "← "; }
[dir="rtl"] .retour::before { content: "→ "; }
.fiche-sujet { margin: 0; font-size: 12.5px; text-transform: uppercase; letter-spacing: 0.06em; color: var(--c); font-weight: 650; }
.fiche-titre { margin: 4px 0 6px; font-size: 21px; line-height: 1.25; }
.fiche-date { margin: 0; font-weight: 600; font-variant-numeric: tabular-nums; }
.fiche-lieu { margin: 2px 0 10px; color: var(--discret); }
.fiche-description { margin: 0 0 12px; }
.fiche-description:first-letter { text-transform: uppercase; }
.fiche-note { font-size: 13px; color: var(--discret); margin: 0 0 12px; }
.fiche-liens { display: flex; flex-direction: column; gap: 6px; margin-block-end: 14px; }

/* Sources */
.sources { border: 1px solid var(--ligne); border-radius: 14px; padding: 0; max-inline-size: min(720px, calc(100vw - 32px)); background: var(--fond); color: var(--encre); box-shadow: var(--ombre); }
.sources::backdrop { background: rgb(0 0 0 / 0.35); }
.sources-contenu { padding: 20px 24px 22px; max-block-size: 80vh; overflow: auto; }
.sources-contenu h2 { margin-block-start: 0; }
.sources-contenu h3 { font-size: 15px; margin: 18px 0 4px; }
.sources-contenu p { margin: 4px 0; }

.pied {
  display: flex; flex-wrap: wrap; gap: 6px 18px; justify-content: center; padding: 10px var(--gouttiere);
  border-block-start: 1px solid var(--ligne); font-size: 13px; color: var(--discret);
}
.pied a { color: var(--discret); }

/* Téléphone et tablette étroite */
@media (max-width: 860px) {
  .atlas { grid-template-columns: minmax(0, 1fr); grid-template-rows: auto auto; }
  .panneau { overflow: visible; }
  .scene { border-inline-end: 0; }
  .carte-cadre { flex: none; block-size: 54svh; min-block-size: 280px; }
  .panneau { border-block-start: 1px solid var(--ligne); }
  .liste { overflow: visible; }
  .fiche { overflow: visible; }
  .commandes-droite { margin-inline-start: 0; }
  .marque-nom { font-size: 16px; }
  .recherche { order: 3; flex-basis: 100%; max-inline-size: none; }
  .entete { gap: 8px 10px; }
  .sujets { flex-wrap: nowrap; overflow-x: auto; scrollbar-width: none; margin-inline: calc(-1 * var(--gouttiere)); padding-inline: var(--gouttiere); inline-size: calc(100% + 2 * var(--gouttiere)); }
  .sujets::-webkit-scrollbar { display: none; }
  .sujet { flex: none; }
}
@media (max-width: 420px) {
  .bascule button { padding: 6px 8px; font-size: 12.5px; }
  .region { max-inline-size: 9em; }
}
@media (prefers-reduced-motion: reduce) { * { scroll-behavior: auto !important; } }