:root {
  --paper: #F6F1E9;
  --card: #FCFAF6;
  --ink: #1A1612;
  --graphite: #6F665C;
  --signal: #C2410C;
  --accent: #F0561A;
  --rule: rgba(26, 22, 18, 0.12);
  --font-display: "Instrument Serif", Georgia, serif;
  --font-body: "Instrument Sans", system-ui, sans-serif;
  --shadow: 0 18px 50px -20px rgba(26, 22, 18, 0.45);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
  overscroll-behavior: none;
}
a { color: inherit; }

#scene { position: fixed; inset: 0; width: 100%; height: 100%; display: block; touch-action: none; outline: none; }

/* étiquettes 3D (CSS2DRenderer) */
.labels { position: fixed; inset: 0; pointer-events: none; }
.tag {
  padding: 0.22rem 0.55rem;
  border-radius: 999px;
  background: rgba(252, 250, 246, 0.92);
  border: 1px solid var(--rule);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  white-space: nowrap;
  box-shadow: 0 4px 12px -6px rgba(26, 22, 18, 0.4);
}
.tag--room {
  background: var(--ink);
  color: var(--paper);
  border-color: var(--ink);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.tag--person { font-size: 10px; padding: 0.15rem 0.45rem; }
.tag--louis {
  background: none;
  border: 0;
  box-shadow: none;
  padding: 0;
  color: #fff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-shadow: 0 1px 2px rgba(26, 22, 18, 0.7), 0 0 8px rgba(26, 22, 18, 0.35);
}
.tag--line { background: var(--card); color: var(--signal); font-size: 12px; }
.is-far .tag--person:not(.tag--louis), .is-far .tag--line { display: none; }

/* barre du haut */
.hud { position: fixed; z-index: 5; }
.hud--top {
  top: max(14px, env(safe-area-inset-top));
  left: 16px;
  right: 16px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  pointer-events: none;
}
.hud--top > * { pointer-events: auto; }
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px 8px 8px;
  border-radius: 16px;
  background: rgba(252, 250, 246, 0.94);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
  text-decoration: none;
}
.brand img { border-radius: 9px; }
.brand__text { display: flex; flex-direction: column; line-height: 1.15; }
.brand__text strong { font-family: var(--font-display); font-weight: 400; font-size: 21px; letter-spacing: -0.01em; }
.brand__text span { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--signal); }
.hud__right { display: flex; gap: 8px; align-items: center; }
.tour-start {
  padding: 10px 14px;
  border: 0;
  border-radius: 12px;
  background: var(--accent);
  color: #fff;
  font: 600 13px var(--font-body);
  box-shadow: var(--shadow);
  cursor: pointer;
  white-space: nowrap;
}
.tour-start:hover { background: var(--signal); }

/* menu : un encart « Visite » avec les pièces, puis Démos et Contact */
.menu-wrap { position: relative; }
.menu {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  border-radius: 14px;
  background: rgba(252, 250, 246, 0.94);
  border: 1px solid var(--rule);
  box-shadow: var(--shadow);
}
.menu__trigger, .menu__item {
  border: 0;
  background: transparent;
  padding: 8px 13px;
  border-radius: 10px;
  font: 500 13px var(--font-body);
  color: var(--ink);
  cursor: pointer;
  white-space: nowrap;
}
.menu__trigger span { display: inline-block; margin-left: 2px; font-size: 10px; transition: transform 0.2s ease; }
.menu__group.is-open .menu__trigger { background: var(--ink); color: var(--paper); }
.menu__group.is-open .menu__trigger span { transform: rotate(180deg); }
.menu__trigger:hover, .menu__item:hover { background: rgba(240, 86, 26, 0.1); color: var(--signal); }
.menu__item[aria-current="true"] { background: var(--ink); color: var(--paper); }
.menu__group { position: relative; }
.menu__panel {
  display: none;
  position: absolute;
  top: calc(100% + 10px);
  left: -4px;
  width: 300px;
  padding: 10px;
  border-radius: 18px;
  background: var(--card);
  border: 1px solid var(--rule);
  box-shadow: 0 24px 60px -24px rgba(26, 22, 18, 0.5);
}
.menu__group.is-open .menu__panel { display: grid; gap: 2px; animation: tourIn 0.25s cubic-bezier(0.2, 0.8, 0.2, 1); }
.menu__label { padding: 4px 10px 6px; font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--signal); }
.menu__room {
  display: grid;
  gap: 1px;
  text-align: left;
  border: 0;
  background: transparent;
  padding: 8px 10px;
  border-radius: 11px;
  cursor: pointer;
  color: var(--ink);
}
.menu__room strong { font-family: var(--font-display); font-weight: 400; font-size: 20px; line-height: 1.1; }
.menu__room span { font-size: 12px; color: var(--graphite); }
.menu__room:hover { background: #F3ECE2; }
.menu__room[aria-current="true"] strong { color: var(--signal); }
.menu-toggle { display: none; }
@media (max-width: 760px) {
  .menu-toggle {
    display: block;
    padding: 10px 14px;
    border-radius: 12px;
    border: 1px solid var(--rule);
    background: rgba(252, 250, 246, 0.94);
    font: 600 13px var(--font-body);
    box-shadow: var(--shadow);
    cursor: pointer;
  }
  .menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    flex-direction: column;
    align-items: stretch;
    width: min(300px, calc(100vw - 32px));
    max-height: 70vh;
    overflow-y: auto;
    padding: 8px;
    border-radius: 18px;
    background: var(--card);
  }
  .menu.is-open { display: flex; }
  .menu__trigger { display: none; }
  .menu__panel { display: grid; position: static; width: auto; padding: 0 0 6px; border: 0; box-shadow: none; background: transparent; border-bottom: 1px solid var(--rule); margin-bottom: 4px; }
  .menu__item { text-align: left; padding: 10px; }
}

/* visite guidée */
.tour {
  position: fixed;
  z-index: 8;
  right: 16px;
  bottom: max(16px, env(safe-area-inset-bottom));
  width: min(400px, calc(100% - 32px));
  padding: 18px 20px 14px;
  border-radius: 20px;
  background: var(--card);
  border: 1px solid var(--rule);
  box-shadow: 0 30px 80px -30px rgba(26, 22, 18, 0.6);
}
.tour[hidden] { display: none; }
.tour.is-in { animation: tourIn 0.45s cubic-bezier(0.2, 0.8, 0.2, 1); }
@keyframes tourIn { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.tour__close {
  position: absolute; top: 10px; right: 10px;
  width: 30px; height: 30px; border-radius: 50%;
  border: 1px solid var(--rule); background: var(--card); font-size: 18px; cursor: pointer;
}
.tour__step { font-size: 11px; font-weight: 600; color: var(--graphite); font-variant-numeric: tabular-nums; }
.tour__kicker { margin-top: 6px; font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--signal); }
.tour__title { font-family: var(--font-display); font-weight: 400; font-size: 30px; line-height: 1.05; margin: 4px 0 8px; }
.tour__body { font-size: 14.5px; line-height: 1.55; color: #3B342D; }
.tour__actions { display: flex; gap: 6px; margin-top: 14px; }
.tour__btn {
  border: 1px solid var(--rule); background: transparent; border-radius: 10px;
  padding: 8px 12px; font: 600 13px var(--font-body); color: var(--ink); cursor: pointer;
}
.tour__btn:disabled { opacity: 0.35; cursor: default; }
.tour__btn--main { margin-left: auto; background: var(--accent); border-color: var(--accent); color: #fff; }
.tour__btn--main:hover { background: var(--signal); }
.tour__btn--ghost[hidden] { display: none; }
.tour__dots { display: flex; gap: 5px; margin-top: 12px; }
.tour__dots span { flex: 1; height: 3px; border-radius: 3px; background: rgba(26, 22, 18, 0.12); }
.tour__dots span.is-on { background: var(--accent); }
.is-touring .clock, .is-touring .hint { opacity: 0; pointer-events: none; }
.is-touring.sheet-open .tour { opacity: 0; pointer-events: none; }

.classic {
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow);
  white-space: nowrap;
}
.classic:hover { background: var(--accent); }

/* horloge : une pastille, l'heure de Paris et ce que fait Louis */
.clock {
  position: fixed;
  z-index: 5;
  left: 16px;
  bottom: max(16px, env(safe-area-inset-bottom));
  max-width: calc(100% - 32px);
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 8px 12px;
  border-radius: 999px;
  border: 1px solid var(--rule);
  background: rgba(252, 250, 246, 0.92);
  box-shadow: var(--shadow);
  font: 500 14px var(--font-body);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.2s ease;
}
.clock:hover { background: #fff; }
.clock__icon { display: flex; width: 18px; height: 18px; color: var(--accent); }
.clock__icon svg { width: 100%; height: 100%; }
.clock.is-night .clock__icon { color: #3A4A6B; }
.clock__time { font-weight: 700; font-variant-numeric: tabular-nums; }
.clock__status { color: var(--graphite); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.clock__status::before { content: "·"; margin-right: 8px; color: var(--rule); }


.hint {
  position: fixed;
  z-index: 4;
  right: 16px;
  bottom: max(16px, env(safe-area-inset-bottom));
  max-width: 360px;
  padding: 8px 12px;
  border-radius: 10px;
  background: rgba(26, 22, 18, 0.78);
  color: var(--paper);
  font-size: 12px;
  line-height: 1.4;
  transition: opacity 0.6s ease;
}
.hint.is-gone { opacity: 0; pointer-events: none; }

.tooltip {
  position: fixed;
  z-index: 6;
  pointer-events: none;
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--ink);
  color: var(--paper);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  opacity: 0;
  transform: translate(14px, 14px);
  transition: opacity 0.12s ease;
}
.tooltip.is-on { opacity: 1; }

/* fiche */
.sheet {
  position: fixed;
  z-index: 10;
  top: 12px;
  right: 12px;
  bottom: 12px;
  width: min(420px, calc(100% - 24px));
  overflow-y: auto;
  padding: 26px 24px 24px;
  border-radius: 22px;
  background: var(--card);
  border: 1px solid var(--rule);
  box-shadow: 0 30px 80px -30px rgba(26, 22, 18, 0.6);
  transform: translateX(calc(100% + 24px));
  transition: transform 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.sheet.is-open { transform: none; }
.sheet__close {
  position: sticky;
  top: 0;
  float: right;
  width: 34px; height: 34px;
  margin: -8px -6px 0 8px;
  border-radius: 50%;
  border: 1px solid var(--rule);
  background: var(--card);
  font-size: 20px;
  line-height: 1;
  cursor: pointer;
}
.sheet__close:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.sheet__kicker { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--signal); }
.sheet__title { font-family: var(--font-display); font-weight: 400; font-size: 38px; line-height: 1.02; letter-spacing: -0.01em; margin: 8px 0 14px; }
.sheet__metrics { display: grid; grid-template-columns: repeat(auto-fit, minmax(110px, 1fr)); gap: 10px; margin-bottom: 16px; }
.sheet__metrics:empty { display: none; }
.sheet__metric { padding: 10px 12px; border-radius: 12px; background: #F3ECE2; }
.sheet__metric strong { display: block; font-size: 24px; font-weight: 700; letter-spacing: -0.04em; color: var(--signal); }
.sheet__metric span { font-size: 12px; line-height: 1.35; color: var(--graphite); }
.sheet__img { display: block; width: 100%; border-radius: 12px; border: 1px solid var(--rule); margin-bottom: 16px; }
.sheet__img:not([src]), .sheet__img[src=""] { display: none; }
.sheet__body { font-size: 15px; line-height: 1.6; color: #3B342D; }
.sheet__body p + p, .sheet__body p + ul, .sheet__body ul + p { margin-top: 0.8em; }
.sheet__body ul { padding-left: 1.1em; display: grid; gap: 0.45em; }
.sheet__muted { color: var(--graphite); font-size: 13px; }
.sheet__certs { list-style: none; padding: 0 !important; margin-top: 0.8em; }
.sheet__certs a { color: var(--signal); text-decoration: none; font-weight: 500; }
.sheet__certs a:hover { text-decoration: underline; }
.sheet__links { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 18px; }
.sheet__links:empty { display: none; }
.sheet__links a {
  padding: 9px 14px;
  border-radius: 10px;
  background: var(--ink);
  color: var(--paper);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}
.sheet__links a:first-child { background: var(--accent); }
.sheet__links a:hover { background: var(--signal); }

/* chargement */
.loader {
  position: fixed;
  inset: 0;
  z-index: 20;
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 14px;
  background: var(--paper);
  transition: opacity 0.6s ease;
}
.loader img { border-radius: 14px; animation: bob 1.2s ease-in-out infinite; }
@keyframes bob { 50% { transform: translateY(-6px); } }
.loader p { font-family: var(--font-display); font-size: 26px; }
.loader__bar { width: 200px; height: 4px; border-radius: 4px; background: rgba(26, 22, 18, 0.1); overflow: hidden; }
.loader__bar span { display: block; height: 100%; width: 0; background: var(--accent); transition: width 0.2s ease; }
.loader.is-done { opacity: 0; pointer-events: none; }

@media (max-width: 640px) {
  .hud--top { flex-wrap: wrap; }
  .brand { order: 1; }
  .hud__right { order: 2; }
  .menu-wrap { order: 3; }
  .classic { display: none; }
  .tour { left: 8px; right: 8px; bottom: 8px; width: auto; }
  .tour__title { font-size: 25px; }
  .brand__text strong { font-size: 17px; }
  .brand__text span { font-size: 9px; }
  .classic { padding: 8px 10px; font-size: 12px; }
  .hint { display: none; }
  .clock { font-size: 13px; padding: 7px 14px 7px 10px; }
  .sheet {
    top: auto;
    left: 8px;
    right: 8px;
    bottom: 8px;
    width: auto;
    max-height: 72vh;
    transform: translateY(calc(100% + 16px));
  }
  .sheet__title { font-size: 32px; }
}

@media (prefers-reduced-motion: reduce) {
  .sheet, .loader, .hint { transition: none; }
  .loader img { animation: none; }
}

/* bulles des logiciels et téléphone */
.tag--phone { background: #FFF6C9; border-color: #E8D68A; font-size: 10px; }
.toast {
  padding: 4px 9px;
  border-radius: 9px;
  background: rgba(252, 250, 246, 0.94);
  border: 1px solid rgba(26, 22, 18, 0.1);
  color: #1A1612;
  font-size: 10.5px;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 8px 20px -8px rgba(26, 22, 18, 0.6);
  animation: toast 3.2s ease-out forwards;
}
.toast::before { content: "✓ "; color: #1E8C6E; }
@keyframes toast {
  0% { opacity: 0; transform: translateY(10px) scale(0.9); }
  12% { opacity: 1; transform: translateY(0) scale(1); }
  75% { opacity: 1; transform: translateY(-14px); }
  100% { opacity: 0; transform: translateY(-26px); }
}
.is-far .toast { font-size: 10px; }
@media (prefers-reduced-motion: reduce) { .toast { animation: none; } }

/* démos dans le site */
.demo {
  position: fixed;
  inset: 0;
  z-index: 30;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(26, 22, 18, 0.55);
  backdrop-filter: blur(3px);
}
.demo[hidden] { display: none; }
.demo__box {
  width: min(1280px, 100%);
  height: min(820px, 100%);
  display: flex;
  flex-direction: column;
  border-radius: 20px;
  overflow: hidden;
  background: var(--card);
  box-shadow: 0 40px 100px -30px rgba(0, 0, 0, 0.6);
  animation: tourIn 0.35s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.demo__bar {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 10px 12px 10px 14px;
  border-bottom: 1px solid var(--rule);
}
.demo__tabs { display: flex; gap: 4px; padding: 3px; border-radius: 12px; background: #F1EADF; }
.demo__tabs button {
  border: 0; background: transparent; border-radius: 9px; padding: 7px 14px;
  font: 600 13px var(--font-body); color: var(--graphite); cursor: pointer;
}
.demo__tabs button[aria-selected="true"] { background: var(--ink); color: var(--paper); }
.demo__sub { flex: 1; font-size: 13px; color: var(--graphite); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.demo__open { font-size: 13px; font-weight: 600; color: var(--signal); text-decoration: none; white-space: nowrap; }
.demo__close {
  width: 34px; height: 34px; border-radius: 50%; border: 1px solid var(--rule);
  background: var(--card); font-size: 20px; cursor: pointer;
}
.demo__close:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.demo__frame { position: relative; flex: 1; background: #F6F1E9; }
.demo__loading { position: absolute; inset: 0; display: grid; place-items: center; font-family: var(--font-display); font-size: 24px; color: var(--graphite); }
.demo__frame iframe { position: relative; width: 100%; height: 100%; border: 0; background: transparent; }
@media (max-width: 640px) {
  .demo { padding: 0; }
  .demo__box { border-radius: 0; height: 100%; }
  .demo__bar { flex-wrap: wrap; gap: 8px; }
  .demo__sub { order: 3; flex-basis: 100%; white-space: normal; }
}