/* Thème clair par défaut; le thème sombre suit le système, sauf choix explicite
   (data-theme sur <html>, conservé dans les préférences). */
:root {
  --bg: #eceef3;
  --dot: #d3d7e0;
  --surface: #ffffff;
  --surface-2: #f2f4f7;
  --border: #e2e5eb;
  --text: #1f2330;
  --muted: #7a8194;
  --accent: #0aa8c9;
  --accent-soft: rgba(10, 168, 201, 0.12);
  --accent-ink: #087f99;
  --on-accent: #ffffff;
  --error: #d93b30;
  --bezel: #c9ccd3;
  --tip-bg: #1f2330;
  --tip-text: #ffffff;
  --shadow: 0 1px 2px rgba(16, 24, 40, 0.06), 0 8px 24px rgba(16, 24, 40, 0.06);
  --code-bg: #fbfcfd;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #15171c;
    --dot: #23262e;
    --surface: #1f222a;
    --surface-2: #282c35;
    --border: #2f333d;
    --text: #e6e8ec;
    --muted: #8d93a1;
    --accent: #22c3e6;
    --accent-soft: rgba(34, 195, 230, 0.14);
    --accent-ink: #4fd3ef;
    --on-accent: #06222b;
    --error: #ff8a80;
    --bezel: #33363e;
    --tip-bg: #000000;
    --tip-text: #ffffff;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
    --code-bg: #181a20;
    color-scheme: dark;
  }
}

:root[data-theme="dark"] {
  --bg: #15171c;
  --dot: #23262e;
  --surface: #1f222a;
  --surface-2: #282c35;
  --border: #2f333d;
  --text: #e6e8ec;
  --muted: #8d93a1;
  --accent: #22c3e6;
  --accent-soft: rgba(34, 195, 230, 0.14);
  --accent-ink: #4fd3ef;
  --on-accent: #06222b;
  --error: #ff8a80;
  --bezel: #33363e;
  --tip-bg: #000000;
  --tip-text: #ffffff;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.3), 0 8px 24px rgba(0, 0, 0, 0.25);
  --code-bg: #181a20;
  color-scheme: dark;
}

* { box-sizing: border-box; }
[hidden] { display: none !important; }

body {
  margin: 0;
  background-color: var(--bg);
  background-image: radial-gradient(var(--dot) 1px, transparent 1px);
  background-size: 22px 22px;
  color: var(--text);
  font: 15px/1.5 system-ui, -apple-system, "Segoe UI", sans-serif;
}

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

svg.icon, svg.chev {
  width: 20px;
  height: 20px;
  flex: none;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

/* ------------------------------------------------------------------ disposition */

.app {
  --sb-width: 300px;
  display: flex;
  min-height: 100vh;
  min-height: 100dvh;
}
.app.collapsed { --sb-width: 76px; }

.sidebar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  flex-direction: column;
  flex: none;
  width: var(--sb-width);
  height: 100vh;
  height: 100dvh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: width 0.2s ease;
}

.content {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  padding: 16px 24px 24px;
}

/* ------------------------------------------------------------------ menu latéral */

.sb-header {
  position: relative;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
}

.logo {
  display: grid;
  place-items: center;
  flex: none;
  width: 44px;
  height: 44px;
  border: 1.5px solid var(--accent);
  border-radius: 12px;
  color: var(--accent);
  background: var(--accent-soft);
}
.logo svg { width: 26px; height: 26px; }

.sb-title { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; white-space: nowrap; }
.sb-title strong { font-size: 1rem; font-weight: 600; }
.sb-title span { color: var(--muted); font-size: 0.85rem; }

/* Bouton rond à cheval sur le bord du menu. */
.sb-collapse {
  position: absolute;
  top: 30px;
  right: -13px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 50%;
  background: var(--surface);
  color: var(--muted);
  box-shadow: var(--shadow);
}
.sb-collapse:hover { color: var(--accent-ink); }
.sb-collapse svg { width: 16px; height: 16px; transform: rotate(180deg); transition: transform 0.2s; }
.collapsed .sb-collapse svg { transform: none; }
.sidebar .sb-close { display: none; margin-left: auto; }

/* position: relative : les éléments en position absolue du menu (cases à cocher invisibles des
   interrupteurs) restent dans sa zone défilante; sinon ils allongeaient la page, et le menu,
   collant seulement dans son conteneur, partait avec le défilement. */
.nav { position: relative; flex: 1; min-height: 0; overflow-y: auto; overflow-x: hidden; padding: 8px 12px 16px; }

.nav-heading {
  margin: 16px 6px 6px;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  white-space: nowrap;
}

.nav-item {
  position: relative;
  display: flex;
  align-items: center;
  gap: 10px;
  width: 100%;
  min-height: 46px;
  margin: 2px 0;
  padding: 0 10px;
  border-radius: 10px;
  background: transparent;
  color: var(--text);
  font-size: 0.95rem;
  text-align: left;
  white-space: nowrap;
}
.nav-item:hover { background: var(--surface-2); }
.nav-item[aria-expanded="true"] { background: var(--accent-soft); color: var(--accent-ink); }
.nav-item .chev { width: 16px; height: 16px; color: var(--muted); transition: transform 0.15s; }
.nav-item[aria-expanded="true"] .chev { transform: rotate(90deg); color: inherit; }
.nav-item .label { flex: 1; }

.badge {
  min-width: 22px;
  padding: 1px 7px;
  border-radius: 11px;
  background: var(--accent);
  color: var(--on-accent);
  font-size: 0.75rem;
  font-weight: 600;
  text-align: center;
}

.nav-panel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 4px 0 10px;
  padding: 12px;
  border-radius: 10px;
  background: var(--surface-2);
}

.sb-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

/* Menu réduit à une colonne d'icônes, avec une infobulle au survol. */
.collapsed .sb-header { justify-content: center; padding-inline: 0; }
.collapsed .sb-title,
.collapsed .nav-item .label,
.collapsed .nav-item .chev,
.collapsed .nav-panel,
.collapsed .sb-footer .label { display: none; }
.collapsed .nav-heading { height: 1px; margin: 12px 8px; background: var(--border); font-size: 0; }
.collapsed .nav-item { justify-content: center; padding: 0; }
.collapsed .nav-item[aria-expanded="true"] { background: transparent; color: var(--text); }
.collapsed .nav-item:hover { background: var(--accent-soft); color: var(--accent-ink); }
.collapsed .badge { position: absolute; top: 4px; right: 8px; min-width: 18px; padding: 0 5px; font-size: 0.68rem; }
.collapsed .sb-footer { justify-content: center; }

/* Infobulle (placée par main.js : le menu défile, elle déborderait de son cadre). */
.tooltip {
  position: fixed;
  z-index: 40;
  padding: 4px 9px;
  border-radius: 5px;
  background: var(--tip-bg);
  color: var(--tip-text);
  font-size: 0.85rem;
  white-space: nowrap;
  pointer-events: none;
  transform: translateY(-50%);
}

/* ------------------------------------------------------------------ commandes */

button, .button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 7px 14px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: var(--on-accent);
  font: inherit;
  cursor: pointer;
}
button.secondary, .button.secondary {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
button.secondary:hover:not(:disabled), .button.secondary:hover:not(.disabled) { border-color: var(--accent); }
button:disabled, select:disabled, .button.disabled { cursor: not-allowed; opacity: 0.5; }
.nav-item, .icon-button { border: 0; }
/* Infobulle des icônes (main.js) : au-dessus de tout, ne capte pas la souris. */
.hover-tip {
  position: fixed;
  z-index: 1000;
  max-width: 300px;
  padding: 5px 9px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--text);
  box-shadow: 0 4px 14px rgb(0 0 0 / 0.25);
  font: 0.8rem/1.35 system-ui, sans-serif;
  white-space: pre-line;
  pointer-events: none;
}

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
}
.icon-button:hover:not(:disabled) { background: var(--surface-2); color: var(--accent-ink); }
.icon-button.small { width: 30px; height: 30px; }
.icon-button.small svg { width: 17px; height: 17px; }
.icon-button.danger:hover:not(:disabled) { color: var(--error); }

button:focus-visible, .button:focus-within, select:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
}

.segmented.four span { padding-inline: 2px; font-size: 0.82rem; }
.segmented.six span { padding-inline: 1px; font-size: 0.76rem; }
.repo-settings summary { color: var(--muted); font-size: 0.85rem; cursor: pointer; }
.repo-settings[open] summary { margin-bottom: 8px; }
code { font: 0.8rem ui-monospace, Consolas, monospace; }

select, textarea, input[type="url"], input[type="search"] {
  width: 100%;
  padding: 7px 9px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  font: inherit;
}
textarea {
  font: 0.9rem/1.4 ui-monospace, Consolas, monospace;
  text-transform: uppercase;
  resize: vertical;
}

.field { display: flex; flex-direction: column; gap: 4px; font-size: 0.85rem; color: var(--muted); }
.row { display: flex; flex-wrap: wrap; gap: 8px; }
.hint { margin: 0; color: var(--muted); font-size: 0.82rem; }
/* Textes d'aide : repliés par défaut, « + » les déplie. */
.more > summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--muted);
  font-size: 0.8rem;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.more > summary::-webkit-details-marker { display: none; }
.more > summary::before {
  content: "+";
  display: inline-grid;
  place-items: center;
  width: 16px;
  height: 16px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-weight: 600;
  line-height: 1;
}
.more[open] > summary::before { content: "−"; }
.more > summary:hover { color: var(--text); }
.more[open] > summary { margin-bottom: 4px; }
.small { font-size: 0.85rem; color: #a3a8b3; max-width: 32em; }
.error { color: var(--error); min-height: 1.5em; }

/* Interrupteur : une case à cocher dessinée comme un bouton à glissière. */
.switch { position: relative; display: inline-flex; align-items: center; gap: 10px; cursor: pointer; font-size: 0.9rem; user-select: none; }
.switch input { position: absolute; opacity: 0; width: 1px; height: 1px; }
.switch .knob {
  position: relative;
  flex: none;
  width: 36px;
  height: 20px;
  border-radius: 10px;
  background: var(--border);
  transition: background 0.15s;
}
.switch .knob::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
  transition: transform 0.15s;
}
.switch input:checked + .knob { background: var(--accent); }
.switch input:checked + .knob::after { transform: translateX(16px); }
.switch input:focus-visible + .knob { outline: 2px solid var(--accent); outline-offset: 2px; }

.segmented { flex-direction: row; flex-wrap: wrap; margin: 0; padding: 0; border: 0; }
.segmented legend { width: 100%; padding: 0; margin-bottom: 4px; }
.segmented label { flex: 1; position: relative; }
/* Bouton radio invisible, posé sur son étiquette : le focus ne fait pas défiler ailleurs. */
.segmented input { position: absolute; inset: 0; width: 100%; height: 100%; margin: 0; opacity: 0; pointer-events: none; }
.segmented span {
  display: block;
  padding: 6px 4px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  text-align: center;
  cursor: pointer;
}
.segmented label:first-of-type span { border-radius: 8px 0 0 8px; }
.segmented label:last-of-type span { border-radius: 0 8px 8px 0; }
.segmented label + label span { border-left: 0; }
.segmented input:checked + span { background: var(--accent-soft); color: var(--accent-ink); border-color: var(--accent); }
.segmented input:focus-visible + span { outline: 2px solid var(--accent); }

.info-box {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 10px 12px;
  border-left: 3px solid var(--accent);
  border-radius: 6px;
  background: var(--surface);
  font-size: 0.85rem;
}

.type-panel { display: flex; flex-direction: column; gap: 8px; }

table.keys { border-collapse: collapse; font-size: 0.85rem; }
table.keys th, table.keys td { text-align: left; padding: 3px 12px 3px 0; }
table.keys th { color: var(--muted); font-weight: 600; }

/* ------------------------------------------------------------------ lecteurs */

.drives { display: flex; flex-direction: column; gap: 8px; }
.modem-status { margin: 0 0 6px; font-size: 0.85rem; }
.modem-status.online { color: var(--accent-ink); font-weight: 600; }
.sub-heading { margin: 14px 0 6px; color: var(--muted); font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
#hard-drives .drive-no { min-width: 2.4em; }
.drive {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}
.drive-head { display: flex; align-items: center; gap: 8px; min-width: 0; }
.drive-no {
  display: grid;
  place-items: center;
  flex: none;
  width: 22px;
  height: 22px;
  border-radius: 6px;
  background: var(--surface-2);
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 600;
}
.drive-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font: 0.85rem ui-monospace, Consolas, monospace;
}
.drive-name.empty { color: var(--muted); }
.drive-name.modified::after { content: " • " attr(data-modified); color: var(--accent-ink); font-family: system-ui, sans-serif; }
.drive-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.drive-actions .button, .drive-actions button.secondary { padding: 4px 10px; font-size: 0.85rem; }
.drive-error { color: var(--error); font-size: 0.82rem; }
.drive-error:empty { display: none; }

/* ------------------------------------------------------------------ bibliothèque */

.library { display: flex; flex-direction: column; gap: 6px; margin: 0; padding: 0; list-style: none; }
.lib-item {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 4px 10px;
  align-items: center;
  padding: 8px 10px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
}
.lib-item > svg { color: var(--accent-ink); }
.lib-meta { display: flex; flex-direction: column; min-width: 0; line-height: 1.3; }
.lib-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font: 0.85rem ui-monospace, Consolas, monospace; }
.lib-sub { color: var(--muted); font-size: 0.75rem; }
.lib-actions { grid-column: 1 / -1; display: flex; flex-wrap: wrap; align-items: center; gap: 4px; }
.lib-actions button.secondary, .lib-actions select { width: auto; padding: 3px 9px; font-size: 0.82rem; }
.lib-actions .spacer { flex: 1; }
.lib-actions .place-row { display: inline-flex; align-items: center; gap: 4px; min-width: 0; }
.lib-actions.one-line { flex-wrap: nowrap; }
.lib-actions.one-line .place-row { flex: 1 1 auto; }
.lib-actions.one-line .place-row select { flex: 1 1 auto; min-width: 0; text-overflow: ellipsis; }
.lib-actions.one-line .spacer { display: none; }
.lib-actions.one-line .icon-button { flex: none; }
/* Dépôt : fiche du fichier choisi dans la liste déroulante (hauteur bornée). */
#repo-select, #repo-cat, #repo-search { margin-bottom: 6px; }
#bbs-filter, #bbs-select { margin-bottom: 6px; }
#bbs-select { padding: 4px; }
#bbs-select option { padding: 2px 5px; border-radius: 4px; }
.repo-detail { min-height: 11.5rem; align-content: start; }
.repo-detail.empty { border-style: dashed; background: transparent; }
.repo-detail .lib-name { white-space: normal; }
.lib-about {
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 4px;
  color: var(--muted);
  font-size: 0.78rem;
}

/* ------------------------------------------------------------------ zone principale */

.toolbar {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 48px;
  margin-bottom: 16px;
}
.toolbar h1 { margin: 0; font-size: 1.15rem; font-weight: 600; }
.toolbar-actions { display: flex; align-items: center; gap: 14px; margin-left: auto; }
.menu-button { display: none; }
.toolbar-sep { width: 1px; height: 22px; background: var(--border); }

/* Choix de la langue : bouton compact (globe et code); la liste native, transparente,
   le recouvre et s'ouvre au clic avec les noms complets. */
.lang-picker {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  height: 36px;
  padding: 0 8px;
  border-radius: 8px;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
}
.lang-picker:hover { background: var(--surface-2); color: var(--accent-ink); }
.lang-picker:focus-within { outline: 2px solid var(--accent); }
.lang-picker svg { width: 18px; height: 18px; }
.lang-picker select {
  position: absolute;
  inset: 0;
  width: 100%;
  padding: 0;
  border: 0;
  opacity: 0;
  cursor: pointer;
}
.speed { color: var(--muted); font-size: 0.85rem; font-variant-numeric: tabular-nums; min-width: 5.5em; text-align: right; }
.with-icon svg { width: 17px; height: 17px; }

.stage {
  display: flex;
  flex-direction: column;
  align-items: center;
  /* L'écran garde le format 4:3 et tient dans la hauteur de la fenêtre. */
  --screen-width: min(100%, calc((100dvh - 190px) * 4 / 3), 1100px);
}
.stage > * { width: var(--screen-width); min-width: min(100%, 300px); }

.monitor {
  position: relative;
  padding: clamp(6px, 1.4vw, 14px);
  border-radius: 14px;
  background: var(--bezel);
  box-shadow: var(--shadow);
}

/* 64 × 16 cases (1536 × 1152 pixels) affichées en 4:3, comme sur le moniteur d'origine.
   L'image de 384 × 192 de l'émulateur y est agrandie sans lissage par main.js. */
canvas {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: 6px;
  background: #000;
  outline: none;
}
canvas:focus-visible { box-shadow: 0 0 0 3px var(--accent); }

.overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.85);
  color: #e8eaee;
  text-align: center;
}
.overlay p { margin: 0; }

/* Scripts bloqués (classe no-js laissée sur <html>) ou démarrage raté (js-failed) : seul le
   message qui explique comment autoriser le site reste sur l'écran. */
.js-required { display: none; }
.no-js .js-required, .js-failed .js-required {
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 46em;
  text-align: left;
  font-size: clamp(0.72rem, 1.3vw, 0.9rem);
  line-height: 1.4;
}
.no-js .overlay, .js-failed .overlay { justify-content: flex-start; overflow-y: auto; }
.no-js .overlay > :not(.js-required), .js-failed .overlay > :not(.js-required) { display: none; }
.js-required strong { color: #ffd479; }
.overlay .error { color: #ff8a80; }

.drop-hint {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border: 3px dashed var(--accent);
  border-radius: 14px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  font-size: 1.1rem;
  pointer-events: none;
}

.now-info {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-top: 12px;
  padding: 12px 12px 12px 14px;
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow);
}
.now-info > svg { margin-top: 2px; color: var(--accent-ink); }
.now-text { display: flex; flex: 1; flex-direction: column; gap: 2px; min-width: 0; }
.now-text strong { font-weight: 600; }
.now-sub { color: var(--muted); font-size: 0.85rem; }
#now-lines p { margin: 4px 0 0; font-size: 0.9rem; }
#now-lines p.muted { color: var(--muted); font-size: 0.82rem; }
#now-lines p.rights a { color: var(--accent-ink); overflow-wrap: anywhere; }
/* Administration : actions sous la description, vignettes du test sur M1, M3 et M4. */
.now-admin { display: flex; flex-direction: column; gap: 6px; margin-top: 8px; padding-top: 8px; border-top: 1px dashed var(--border); }
.now-admin .admin-row { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.now-admin button.secondary, .now-admin select { padding: 4px 10px; font-size: 0.85rem; }
.now-admin select { width: auto; max-width: 100%; }
.now-admin .admin-models { display: inline-flex; gap: 8px; align-items: center; font-size: 0.85rem; }
.now-admin .admin-models label { display: inline-flex; gap: 3px; align-items: center; cursor: pointer; }
.now-admin .admin-badge { color: var(--accent-ink); font: 600 0.75rem system-ui, sans-serif; }
.test-shots { display: flex; flex-wrap: wrap; gap: 8px; }
.test-shots figure { margin: 0; text-align: center; font-size: 0.78rem; color: var(--muted); }
.test-shots img { display: block; width: 192px; max-width: 28vw; border: 1px solid var(--border); border-radius: 4px; image-rendering: pixelated; }
.admin-login { display: flex; flex-direction: column; gap: 6px; }
.admin-tools { display: flex; flex-direction: column; gap: 6px; }
.admin-heading { margin: 6px 0 0; font-weight: 600; font-size: 0.88rem; }

/* Barre des lecteurs, sous l'écran. */
/* Une seule ligne : les lecteurs garnis se partagent la largeur, les vides restent étroits;
   les textes trop longs sont coupés (l'infobulle les donne en entier). */
.drive-bar { display: flex; flex-wrap: nowrap; gap: 6px; margin-top: 10px; }
.drive-chip {
  display: inline-flex;
  align-items: flex-start;
  gap: 2px;
  max-width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
  color: var(--text);
  font: 0.8rem ui-monospace, Consolas, monospace;
}
.drive-chip { flex: 1 1 0; min-width: 0; }
.drive-chip.empty { flex: 0 0 auto; }
.drive-chip:hover { border-color: var(--accent); }
.drive-chip .chip-main {
  display: inline-flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1px;
  min-width: 0;
  padding: 4px 4px 4px 10px;
  border: 0;
  background: none;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}
.drive-chip .chip-main { flex: 1 1 auto; overflow: hidden; }
.drive-chip .chip-main > span, .drive-chip .chip-lines > span { max-width: 100%; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.drive-chip .chip-lines { display: flex; flex-direction: column; gap: 1px; min-width: 0; max-width: 100%; }
.drive-chip.bare .chip-main { padding-right: 10px; }
.drive-chip .icon-button { flex: none; }
.drive-chip .icon-button { margin: 3px 3px 0 0; }
/* Disquette d'un autre format que celui du DOS du lecteur 0. */
.drive-chip.clash, .drive-chip.clash.active { border-color: var(--error); background: color-mix(in srgb, var(--error) 14%, var(--surface)); }
.drive-chip .clash-text { color: var(--error); font: 600 0.72rem system-ui, sans-serif; }
.drive-chip .no { color: var(--accent-ink); font-weight: 600; }
.drive-chip .file { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.drive-chip.empty .file { color: var(--muted); }
.drive-chip .chip-head { display: flex; align-items: center; gap: 6px; }
.drive-chip.modified .chip-head::after { content: "●"; color: var(--accent); font-size: 0.7rem; }
.drive-chip .geo { color: var(--muted); font: 0.72rem system-ui, sans-serif; }
.drive-chip .access { color: var(--accent-ink); font: 600 0.72rem system-ui, sans-serif; }
button.danger { border: 1px solid var(--error); background: color-mix(in srgb, var(--error) 12%, var(--surface)); color: var(--error); }
button.danger:hover:not(:disabled) { background: color-mix(in srgb, var(--error) 22%, var(--surface)); }
.drive-chip .dos { color: var(--muted); font: 0.72rem system-ui, sans-serif; }
.drive-chip .dos.system { color: var(--accent-ink); }
.drive-chip .chip-tools { display: flex; flex: none; }

/* Fenêtre des disquettes (formatage, fichiers). */
.dialog { border: 1px solid var(--border); border-radius: 12px; background: var(--surface); color: var(--text); padding: 16px 18px; width: min(640px, 94vw); max-height: 90vh; }
.dialog::backdrop { background: rgb(0 0 0 / 0.45); }
.dialog h2 { margin: 0 0 4px; font-size: 1.05rem; }
.dialog .hint { margin: 4px 0 10px; }
.dialog .field { margin-bottom: 10px; }
.dialog .warning { color: var(--error); font-size: 0.88rem; margin: 6px 0; }
.dialog-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; margin-top: 12px; }
.dialog-actions .spacer { flex: 1; }
.dialog-actions select { width: auto; }
.files-scroll { max-height: 48vh; overflow: auto; border: 1px solid var(--border); border-radius: 8px; }
.files-table { width: 100%; border-collapse: collapse; font: 0.85rem ui-monospace, Consolas, monospace; }
.files-table th { position: sticky; top: 0; background: var(--surface-2); text-align: left; font: 600 0.78rem system-ui, sans-serif; }
.files-table th, .files-table td { padding: 4px 8px; border-bottom: 1px solid var(--border); }
.files-table td.size { text-align: right; }
.files-table tr.system td { color: var(--muted); }
.files-table label { display: flex; gap: 8px; align-items: center; cursor: pointer; }
/* Imprimante : papier en continu (bandes vertes et blanches, perforations d'entraînement). */
.printer { margin-top: 10px; border: 1px solid var(--border); border-radius: 12px; background: var(--surface); overflow: hidden; }
.printer-head { display: flex; align-items: center; gap: 8px; padding: 6px 10px; border-bottom: 1px solid var(--border); }
.printer-head .icon { color: var(--accent-ink); }
.printer-head .spacer { flex: 1; }
.printer-count { color: var(--muted); font-size: 0.82rem; }
.printer-feed { max-height: 420px; overflow: auto; padding: 14px 0; background: var(--surface-2); }
.sheet {
  --lh: 17px;          /* une ligne imprimée */
  --band: calc(var(--lh) * 3);
  --tractor: 30px;     /* bande des perforations */
  position: relative;
  width: max-content;
  min-width: calc(80ch + 2 * var(--tractor) + 24px);
  margin: 0 auto;
  padding: 0 calc(var(--tractor) + 12px);
  background:
    /* trous d'entraînement (tous les 1/2 pouce), à gauche puis à droite */
    radial-gradient(circle at 15px calc(var(--band) / 2), #9aa39a 0 3.5px, #c9cfc9 4px 5px, transparent 5.5px) left top / var(--tractor) var(--band) repeat-y,
    radial-gradient(circle at 15px calc(var(--band) / 2), #9aa39a 0 3.5px, #c9cfc9 4px 5px, transparent 5.5px) right top / var(--tractor) var(--band) repeat-y,
    /* bandes blanches et vertes de trois lignes */
    repeating-linear-gradient(to bottom, #fbfbf6 0 var(--band), #dcebd9 var(--band) calc(2 * var(--band)));
  color: #262a2e;
  box-shadow: 0 1px 4px rgb(0 0 0 / 0.25);
}
/* Prédécoupes entre la bande des perforations et la feuille. */
.sheet::before, .sheet::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 0;
  border-left: 1px dashed #b9c4b8;
}
.sheet::before { left: var(--tractor); }
.sheet::after { right: var(--tractor); }
/* Pliure perforée entre deux feuilles (toutes les 66 lignes, ou saut de page). */
.sheet + .sheet { border-top: 2px dotted #9aa39a; }
.sheet pre {
  margin: 0;
  padding: 0 0 var(--band);
  min-height: calc(2 * var(--band));
  font: 15px/var(--lh) "Courier New", Courier, ui-monospace, monospace;
  letter-spacing: 0.02em;
  white-space: pre;
  text-shadow: 0 0 0.6px rgb(38 42 46 / 0.6); /* encre du ruban, un peu baveuse */
}
/* Aide-mémoire : commandes par sujet; un clic tape la commande. */
.cheat-sections { max-height: 58vh; overflow: auto; padding-right: 4px; }
.cheat-sections h3 { margin: 12px 0 4px; font-size: 0.92rem; color: var(--accent-ink); }
.cheat-row { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr); gap: 10px; align-items: center; padding: 3px 0; border-bottom: 1px solid var(--border); }
.cheat-row button.cheat-cmd { justify-self: start; max-width: 100%; padding: 3px 8px; border: 1px solid var(--border); border-radius: 6px; background: var(--surface-2); color: var(--text); font: 0.84rem ui-monospace, Consolas, monospace; text-align: left; white-space: normal; overflow-wrap: anywhere; cursor: pointer; }
.cheat-row button.cheat-cmd:hover { border-color: var(--accent); }
.cheat-row .cheat-desc { color: var(--muted); font-size: 0.84rem; }
@media (max-width: 640px) { .cheat-row { grid-template-columns: 1fr; gap: 2px; } }
.history-list { list-style: none; margin: 0; padding: 0; }
.history-list li { display: flex; align-items: center; gap: 6px; padding: 4px 8px; border-bottom: 1px solid var(--border); }
.history-list code { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font: 0.88rem ui-monospace, Consolas, monospace; }
.history-list button.secondary { padding: 2px 8px; font-size: 0.8rem; }
.drive-chip.active { border-color: var(--accent); background: var(--accent-soft); }
/* Cassette : la partie lue se remplit de gauche à droite. */
.drive-chip.tape, .drive-chip.tape.active { background: linear-gradient(to right, color-mix(in srgb, var(--accent) 22%, var(--surface)) var(--progress), var(--surface) var(--progress)); }

.status { min-height: 1.4em; margin: 10px 0 0; color: var(--muted); font-size: 0.88rem; }
.status.error { color: var(--error); }

/* ------------------------------------------------------------------ atelier d'assemblage */

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); }
#ide-toggle[aria-pressed="true"] { background: var(--accent-soft); color: var(--accent-ink); }

/* Ordinateur : l'éditeur à gauche, l'écran et les registres à droite. */
.ide-mode .workspace {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(340px, 38%);
  gap: 18px;
  align-items: start;
}
.ide-mode .stage { --screen-width: 100%; position: sticky; top: 8px; }
/* La fiche du programme cède sa place aux registres : le programme, c'est le source édité. */
.ide-mode .now-info { display: none; }
@media (max-width: 1100px) {
  .ide-mode .workspace { grid-template-columns: minmax(0, 1fr); }
  .ide-mode .stage { position: static; }
}

.ide { display: flex; flex-direction: column; gap: 10px; min-width: 0; }
.ide-bar, .ide-more, .ide-debugbar { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; }
.ide-gap { flex: 1; }
.ide-bar button, .ide-more button, .ide-more .button, .ide-debugbar button { padding: 6px 12px; font-size: 0.88rem; }
.ide-name {
  display: inline-flex;
  align-items: center;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  font: 0.9rem ui-monospace, Consolas, monospace;
}
.ide-name input {
  width: 8.5ch;
  padding: 6px 2px 6px 8px;
  border: 0;
  background: transparent;
  color: var(--text);
  font: inherit;
  text-transform: uppercase;
  outline: none;
}
.ide-name span { padding-right: 8px; color: var(--muted); }
.ide-name:focus-within { outline: 2px solid var(--accent); }
.ide-drive { display: inline-flex; align-items: center; gap: 4px; color: var(--muted); }
.ide-drive select { width: auto; padding: 5px 6px; font: 0.9rem ui-monospace, Consolas, monospace; }

.ide-files {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 10px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}
.ide-files .hint { flex-basis: 100%; }
.ide-file { gap: 10px; padding: 4px 10px; font-size: 0.85rem; }
.ide-file span { color: var(--muted); font-size: 0.78rem; }

/* Éditeur : une zone de texte transparente sur la coloration, numéros de ligne à gauche. */
.editor {
  --code-font: 0.86rem/1.5 ui-monospace, "Cascadia Mono", Consolas, monospace;
  position: relative;
  display: flex;
  height: clamp(280px, calc(100dvh - 380px), 900px);
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--code-bg);
  box-shadow: var(--shadow);
}
.gutter-wrap { flex: none; overflow: hidden; border-right: 1px solid var(--border); background: var(--surface-2); }
.gutter { padding: 10px 0; font: var(--code-font); color: var(--muted); text-align: right; user-select: none; }
.gl { position: relative; min-width: 3.4em; padding: 0 8px 0 18px; cursor: pointer; }
.gl:hover { color: var(--text); }
.gl.bp::before {
  content: "";
  position: absolute;
  left: 5px;
  top: 50%;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  background: #e5484d;
  transform: translateY(-50%);
}
.gl.error { color: var(--error); font-weight: 700; }
.gl.warn { color: #d69e00; font-weight: 700; }
.gl.cur { background: var(--accent-soft); color: var(--accent-ink); }
.code-area { position: relative; flex: 1; min-width: 0; overflow: hidden; }
.code-highlight, .code-input {
  margin: 0;
  padding: 10px 12px;
  font: var(--code-font);
  letter-spacing: 0;
  tab-size: 8;
  white-space: pre;
}
.code-highlight { position: absolute; top: 0; left: 0; min-width: 100%; color: var(--text); pointer-events: none; }
.hl-line { min-height: 1.5em; }
.hl-line.error { background: rgba(229, 72, 77, 0.14); }
.hl-line.warn { background: rgba(214, 158, 0, 0.12); }
.hl-line.cur { background: var(--accent-soft); box-shadow: inset 3px 0 0 var(--accent); }
.code-input {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: transparent;
  caret-color: var(--text);
  text-transform: none;
  resize: none;
  overflow: auto;
  outline: none;
}
.code-input::selection { background: rgba(110, 168, 255, 0.35); color: transparent; }
.tk-comment { color: var(--muted); font-style: italic; }
.tk-label { color: #c2410c; font-weight: 600; }
.tk-op { color: var(--accent-ink); font-weight: 600; }
.tk-dir { color: #7c3aed; font-weight: 600; }
.tk-reg { color: #0f766e; }
.tk-num { color: #b45309; }
.tk-string { color: #15803d; }
.tk-svc { color: #db2777; }
:root[data-theme="dark"] .tk-label { color: #fb923c; }
:root[data-theme="dark"] .tk-dir { color: #c4b5fd; }
:root[data-theme="dark"] .tk-reg { color: #5eead4; }
:root[data-theme="dark"] .tk-num { color: #fbbf24; }
:root[data-theme="dark"] .tk-string { color: #86efac; }
:root[data-theme="dark"] .tk-svc { color: #f9a8d4; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .tk-label { color: #fb923c; }
  :root:not([data-theme="light"]) .tk-dir { color: #c4b5fd; }
  :root:not([data-theme="light"]) .tk-reg { color: #5eead4; }
  :root:not([data-theme="light"]) .tk-num { color: #fbbf24; }
  :root:not([data-theme="light"]) .tk-string { color: #86efac; }
  :root:not([data-theme="light"]) .tk-svc { color: #f9a8d4; }
}

.ide-output { display: flex; flex-direction: column; gap: 6px; }
.ide-summary { margin: 0; font-size: 0.9rem; min-height: 1.4em; }
.ide-summary.ok { color: #15803d; }
.ide-summary.error { color: var(--error); font-weight: 600; }
.ide-messages { display: flex; flex-direction: column; gap: 4px; max-height: 220px; margin: 0; padding: 0; overflow: auto; list-style: none; }
.ide-messages li {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px 10px;
  padding: 6px 10px;
  border-left: 3px solid var(--error);
  border-radius: 6px;
  background: var(--surface);
  font-size: 0.86rem;
}
.ide-messages li.warn { border-left-color: #d69e00; }
.ide-line { padding: 0; border: 0; background: none; color: var(--accent-ink); font-weight: 600; text-decoration: underline; }
.ide-msg { flex: 1; min-width: 12em; }
.ide-fix { gap: 8px; padding: 3px 9px; font-size: 0.8rem; }
.ide-fix code { color: var(--accent-ink); white-space: pre; }

.ide-help summary { cursor: pointer; color: var(--muted); font-size: 0.9rem; }
.ide-help .hint { margin: 8px 0; }
.svc-table { border-collapse: collapse; font-size: 0.84rem; }
.svc-table td { padding: 3px 12px 3px 0; vertical-align: top; }
.svc-table .mono { font-family: ui-monospace, Consolas, monospace; }
.svc-ldos, .svc-rom { font-size: 0.72rem; font-weight: 700; color: var(--muted); }
.linklike { padding: 0; border: 0; background: none; color: var(--accent-ink); font: 600 0.84rem ui-monospace, Consolas, monospace; }

.ide-regs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 10px;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface);
}
.ide-state { margin: 0; color: var(--muted); font-size: 0.86rem; min-height: 1.3em; }
.reg-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 4px; }
.reg { display: flex; justify-content: space-between; gap: 4px; padding: 3px 7px; border-radius: 6px; background: var(--surface-2); font-size: 0.82rem; }
.reg span { color: var(--muted); }
.reg code { font: 0.86rem ui-monospace, Consolas, monospace; }
.reg.changed { background: var(--accent-soft); }
.reg.changed code { color: var(--accent-ink); font-weight: 700; }
.flags { display: flex; flex-wrap: wrap; gap: 4px; }
.flag { padding: 1px 8px; border: 1px solid var(--border); border-radius: 10px; color: var(--muted); font: 0.78rem ui-monospace, Consolas, monospace; }
.flag.on { background: var(--accent); border-color: var(--accent); color: var(--on-accent); font-weight: 700; }
.mem { display: flex; flex-direction: column; gap: 2px; font-size: 0.8rem; }
.mem div { display: flex; gap: 8px; }
.mem span { min-width: 4.5em; color: var(--muted); }
.mem code { font: 0.82rem ui-monospace, Consolas, monospace; }

/* Champ invisible qui fait apparaître le clavier virtuel d'une tablette. 16px : sinon
   iOS agrandit la page quand il reçoit le focus. */
#touch-input {
  position: absolute;
  top: 0;
  left: 0;
  width: 1px;
  height: 1px;
  padding: 0;
  border: 0;
  opacity: 0;
  resize: none;
  font-size: 16px;
  pointer-events: none;
}

/* Touches spéciales, seulement sur un écran tactile (une tablette n'a pas Échap ni Origine). */
.touch-keys { display: none; flex-wrap: wrap; justify-content: center; gap: 6px; margin-top: 10px; }
@media (any-pointer: coarse) {
  .touch-keys { display: flex; }
}
.touch-keys button { min-width: 3em; padding: 10px 12px; touch-action: manipulation; user-select: none; }
.touch-keys button.active { background: var(--accent); color: var(--on-accent); }

/* Thème : le bouton montre la lune en clair et le soleil en sombre. */
.icon-sun { display: none; }
:root[data-theme="dark"] .icon-sun { display: block; }
:root[data-theme="dark"] .icon-moon { display: none; }
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .icon-sun { display: block; }
  :root:not([data-theme="light"]) .icon-moon { display: none; }
}

/* ------------------------------------------------------------------ téléphone */

/* Le menu devient un tiroir qui glisse par-dessus l'écran. */
@media (max-width: 760px) {
  .app { --sb-width: min(320px, 88vw); }
  .sidebar {
    position: fixed;
    left: 0;
    transform: translateX(-105%);
    transition: transform 0.22s ease;
  }
  .app.drawer-open .sidebar { transform: none; }
  .backdrop {
    position: fixed;
    inset: 0;
    z-index: 15;
    background: rgba(0, 0, 0, 0.45);
  }
  .sb-collapse { display: none; }
  .sidebar .sb-close { display: inline-grid; }
  /* (Dans le tiroir, le menu est toujours déplié : main.js n'y met pas .collapsed.) */

  .content { padding: 8px 10px 16px; }
  .toolbar { margin-bottom: 8px; gap: 4px; }
  .toolbar h1 { min-width: 0; overflow: hidden; font-size: 0.95rem; white-space: nowrap; text-overflow: ellipsis; }
  .toolbar-actions { gap: 2px; }
  .menu-button { display: inline-grid; }
  .speed, .toolbar-sep, .switch.compact [data-i18n] { display: none; }
  .switch.compact { margin-right: 6px; }
  .toolbar .with-icon span { display: none; }
  .toolbar .with-icon { padding: 7px 9px; }
  .lang-picker { padding: 0 5px; }
  .stage { --screen-width: 100%; }
  .monitor { border-radius: 10px; }
}

/* État de la machine : deux boutons et deux icônes sur une ligne. */
.state-box .row { flex-wrap: nowrap; align-items: center; gap: 6px; }
.state-box .row .secondary { padding-inline: 10px; }
.state-box label.icon-button { display: inline-flex; align-items: center; justify-content: center; cursor: pointer; }

/* Dépôt : légende des symboles de la liste des disquettes. */
.repo-legend { margin: 4px 0 0; font-size: 0.8rem; white-space: pre-line; }