/* ==========================================================================
   lbcx.fr — socle commun (accueil, résultats, documents légaux)

   Marque : noir chaud + orange #ff6a1f, TOUJOURS en lumière (liseré, lueur,
   dégradé de texte), jamais en aplat.
   Polices hébergées ici (licence OFL, fichiers dans /landing/fonts) :
     - Archivo, axe de largeur 62 → 125 % : titres et chiffres, en « étendu »
       sur ordinateur, resserré au téléphone pour garder de grands corps.
     - Figtree : le texte courant (la police historique de LBCX).
   Lisibilité : rien sous 13 px, texte secondaire à 6:1 minimum.
   ========================================================================== */

@font-face {
  font-family: 'Archivo';
  src: url('/landing/fonts/archivo-var-latin.woff2') format('woff2');
  font-weight: 100 900; font-stretch: 62% 125%; font-style: normal; font-display: swap;
}
@font-face {
  font-family: 'Figtree';
  src: url('/landing/fonts/figtree-var-latin.woff2') format('woff2');
  font-weight: 300 900; font-style: normal; font-display: swap;
}

@property --lg-a { syntax: '<angle>'; inherits: false; initial-value: 0deg; }

:root {
  --bg: #090302;
  --bg-2: #180904;
  --bg-3: #240e05;
  --ink: #fff4ec;
  --ink-2: #f3dccb;      /* texte courant : 14:1 */
  --ink-3: #deb99d;      /* secondaire : 10:1 */
  --ink-4: #c29a7f;      /* mentions : 7:1 */

  --o: #ff6a1f;
  --o-2: #ff8340;
  --o-3: #ffa566;
  --o-4: #ffd9bf;
  --o-deep: #c44516;
  --g: #4ade80;
  --g-2: #86efac;

  --line: rgba(255, 150, 90, .18);
  --line-2: rgba(255, 150, 90, .3);

  /* la lumière de la marque, pour le texte */
  --lum: linear-gradient(100deg, #ffd3ad 0%, #ff9a4d 30%, #ff6a1f 64%, #ff5410 100%);
  --lum-g: linear-gradient(100deg, #d9ffe6 0%, #86efac 45%, #4ade80 100%);

  --disp: 'Archivo', 'Arial Black', system-ui, sans-serif;
  --body: 'Figtree', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  --ease: cubic-bezier(.2, .7, .2, 1);
  --ease-io: cubic-bezier(.65, 0, .35, 1);
  --spring: cubic-bezier(.34, 1.56, .64, 1);
  --pp: running;
  --wrap: 1180px;
  --gut: 20px;
}
@media (prefers-reduced-motion: reduce) { :root { --pp: paused; } }
@media (max-width: 560px) { :root { --gut: 16px; } }

*, *::before, *::after { box-sizing: border-box; }
html {
  scroll-behavior: smooth; scroll-padding-top: 96px; color-scheme: dark;
  -webkit-text-size-adjust: 100%; background: var(--bg);
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0; min-height: 100vh; background: var(--bg); color: var(--ink-2);
  font: 400 17px/1.6 var(--body); overflow-x: clip;
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}
img, video, canvas, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button, input { font: inherit; color: inherit; }
button { cursor: pointer; background: none; border: 0; padding: 0; }
b, strong { font-weight: 700; color: var(--ink); }
::selection { background: rgba(255, 106, 31, .55); color: #fff; }
:focus-visible { outline: 2px solid var(--o-3); outline-offset: 3px; border-radius: 10px; }
[hidden] { display: none !important; }
.sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); clip-path: inset(50%); white-space: nowrap; }
.nw { white-space: nowrap; }

/* grain léger : casse l'aspect « dégradé d'ordinateur » */
body::after {
  content: ""; position: fixed; inset: 0; z-index: 90; pointer-events: none; opacity: .05;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/></filter><rect width='160' height='160' filter='url(%23n)'/></svg>");
}

/* lumière d'ambiance (fixe, derrière tout) */
.ambient { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; background: var(--bg); }
.ambient i { position: absolute; border-radius: 50%; animation: amb 30s ease-in-out infinite alternate; animation-play-state: var(--pp); }
.ambient { background:
    radial-gradient(34% 100% at 0% 45%, rgba(255, 90, 20, .3), transparent 76%),
    radial-gradient(34% 100% at 100% 55%, rgba(255, 70, 10, .32), transparent 76%),
    radial-gradient(70% 40% at 50% 0%, rgba(255, 80, 16, .16), transparent 80%),
    linear-gradient(180deg, #090302, #0e0402 50%, #090302); }
.ambient i:nth-child(1) { width: 80vmax; height: 80vmax; left: -34vmax; top: -40vmax; background: radial-gradient(closest-side, rgba(255, 90, 20, .26), transparent); }
.ambient i:nth-child(2) { width: 66vmax; height: 66vmax; right: -30vmax; top: 22vh; background: radial-gradient(closest-side, rgba(255, 70, 10, .2), transparent); animation-duration: 38s; }
.ambient i:nth-child(3) { width: 70vmax; height: 70vmax; left: 10vw; bottom: -46vmax; background: radial-gradient(closest-side, rgba(255, 80, 16, .12), transparent); animation-duration: 44s; }
@keyframes amb { to { transform: translate3d(4vw, 3vh, 0) scale(1.08); } }

/* ==========================================================================
   TYPOGRAPHIE
   ========================================================================== */
.wrap { width: min(var(--wrap), 100% - var(--gut) * 2); margin-inline: auto; }
.wrap.narrow { --wrap: 900px; }

.h1, .h2, .h3 { margin: 0; color: var(--ink); font-family: var(--disp); text-wrap: balance; }
.h2 {
  font-weight: 800; font-stretch: 116%; letter-spacing: -.035em;
  font-size: clamp(31px, 4.5vw, 60px); line-height: 1.04;
}
.h2-sm { font-size: clamp(27px, 3.3vw, 44px); }
.h3 { font-weight: 800; font-stretch: 108%; letter-spacing: -.025em; font-size: clamp(22px, 2.2vw, 30px); line-height: 1.12; }
@media (max-width: 560px) {
  .h2 { font-stretch: 100%; letter-spacing: -.03em; }
  .h3 { font-stretch: 100%; }
}
.lead { margin: 20px auto 0; max-width: 660px; font-size: clamp(17px, 1.5vw, 19.5px); line-height: 1.6; color: var(--ink-2); text-wrap: pretty; }
.sec-head { text-align: center; }

/* texte de lumière : dégradé orange, lueur, et un reflet qui passe une fois à l'apparition */
.lum, .lum-g {
  background: linear-gradient(100deg, transparent 38%, rgba(255, 255, 255, .95) 50%, transparent 62%) 160% 0 / 260% 100% no-repeat, var(--lum);
  -webkit-background-clip: text; background-clip: text; color: transparent; -webkit-text-fill-color: transparent;
  filter: drop-shadow(0 0 18px rgba(255, 106, 31, .55)) drop-shadow(0 0 42px rgba(255, 80, 10, .28));
}
.lum-g { background: linear-gradient(100deg, transparent 38%, rgba(255, 255, 255, .95) 50%, transparent 62%) 160% 0 / 260% 100% no-repeat, var(--lum-g); filter: drop-shadow(0 0 22px rgba(74, 222, 128, .28)); -webkit-background-clip: text; background-clip: text; }
.in .lum, .lum.in, .in .lum-g, .lum-g.in { animation: sweep 1.6s var(--ease) .35s both; }
@keyframes sweep { from { background-position: 160% 0, 0 0; } to { background-position: -60% 0, 0 0; } }

/* le trait de lumière qui se trace sous un mot */
.u-beam { position: relative; white-space: nowrap; }
.u-beam::after {
  content: ""; position: absolute; left: 2%; right: 2%; bottom: -.06em; height: .075em; min-height: 3px; border-radius: 99px;
  background: linear-gradient(90deg, rgba(255, 106, 31, 0), #ffb27a 18%, #fff1e6 50%, #ffb27a 82%, rgba(255, 106, 31, 0));
  box-shadow: 0 0 14px rgba(255, 106, 31, .9), 0 0 34px rgba(255, 106, 31, .45);
  transform: scaleX(0); transform-origin: 0 50%; transition: transform 1.1s var(--ease) .55s;
}
.in .u-beam::after, .u-beam.in::after { transform: scaleX(1); }
.js .no-js-only { display: none; }

/* apparition au scroll (opacité + position seulement : rien de coûteux) */
.js .rv { opacity: 0; transform: translateY(28px); transition: opacity .9s var(--ease), transform .9s var(--ease); transition-delay: var(--d, 0s); }
.js .rv.in { opacity: 1; transform: none; }
/* titres mot par mot */
.w { display: inline-block; white-space: nowrap; }
.js [data-split] .w > span { display: inline-block; opacity: 0; transform: translateY(.5em) rotateX(-45deg); transform-origin: 50% 100%; transition: opacity .75s var(--ease), transform .85s var(--ease); transition-delay: calc(var(--i) * 45ms); }
.js [data-split].in .w > span { opacity: 1; transform: none; }
.js [data-split] .w > .lum, .js [data-split] .w > .lum-g { transition-property: opacity, transform; }

/* ==========================================================================
   VERRE : fond teinté + flou, liseré lumineux, reflet qui suit la souris
   ========================================================================== */
.lg {
  position: relative; isolation: isolate; border-radius: var(--lg-r, 26px);
  background:
    linear-gradient(160deg, rgba(255, 230, 214, .10) 0%, rgba(255, 255, 255, .03) 34%, rgba(255, 255, 255, .012) 62%, rgba(255, 170, 120, .06) 100%),
    radial-gradient(120% 80% at 50% 120%, rgba(255, 106, 31, .16), transparent 60%),
    rgba(30, 10, 4, .66);
  -webkit-backdrop-filter: blur(20px) saturate(170%); backdrop-filter: blur(20px) saturate(170%);
  box-shadow:
    inset 0 1px 0 rgba(255, 220, 196, .32),
    inset 0 -1px 0 rgba(255, 255, 255, .05),
    inset 0 -34px 64px -40px rgba(255, 106, 31, .7),
    0 30px 80px -30px rgba(0, 0, 0, .85),
    0 0 50px -20px rgba(255, 106, 31, .35),
    0 0 0 .5px rgba(255, 170, 120, .14);
}
.lg::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; padding: 1.2px; pointer-events: none; z-index: 1;
  background: linear-gradient(140deg, rgba(255, 220, 196, .6), rgba(255, 140, 70, .12) 28%, rgba(255, 106, 31, .1) 55%, rgba(255, 106, 31, .75) 84%, rgba(255, 190, 150, .3));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
}
.lg::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; z-index: -1;
  background: radial-gradient(520px circle at var(--mx, 18%) var(--my, -12%), rgba(255, 220, 196, .10), transparent 46%);
}
/* liseré qui tourne : réservé aux pièces maîtresses */
.lg-live::before {
  padding: 1.5px;
  background: conic-gradient(from var(--lg-a), #ffd9bf, rgba(255, 106, 31, .25) 10%, rgba(255, 90, 20, .12) 26%, #ff6a1f 44%, rgba(255, 90, 20, .12) 62%, #ff8a3d 80%, #ffd9bf);
  animation: lgspin 7s linear infinite; animation-play-state: var(--pp);
}
@keyframes lgspin { to { --lg-a: 360deg; } }
/* au doigt : pas de flou recalculé à chaque image de défilement (iPhone) */
@media (hover: none) and (pointer: coarse) {
  .lg { -webkit-backdrop-filter: none; backdrop-filter: none; background: linear-gradient(160deg, rgba(255, 230, 214, .10), rgba(255, 255, 255, .02) 40%, rgba(255, 170, 120, .06)), rgba(40, 15, 5, .94); }
}

/* ==========================================================================
   BOUTONS — de la lumière, pas de la peinture
   ========================================================================== */
.btn {
  --h: 56px; position: relative; isolation: isolate;
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--h); padding: 0 28px; border-radius: 999px;
  font: 700 16.5px/1 var(--body); letter-spacing: -.005em; color: #fff; white-space: nowrap;
  background:
    radial-gradient(120% 90% at 50% 120%, rgba(255, 150, 70, .75), transparent 60%),
    linear-gradient(180deg, rgba(255, 170, 110, .55) 0%, rgba(255, 106, 31, .42) 50%, rgba(240, 80, 14, .7) 100%),
    #5a1b03;
  box-shadow:
    inset 0 0 0 1px rgba(255, 190, 140, .8),
    inset 0 1px 0 rgba(255, 240, 230, .7),
    inset 0 -10px 22px -10px rgba(255, 140, 60, .9),
    0 0 0 1px rgba(255, 106, 31, .35),
    0 14px 44px -8px rgba(255, 106, 31, .95),
    0 0 70px -12px rgba(255, 90, 20, .85);
  text-shadow: 0 1px 10px rgba(255, 106, 31, .6);
  transition: transform .45s var(--spring), box-shadow .45s var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.btn::after {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit; pointer-events: none;
  background: linear-gradient(105deg, transparent 36%, rgba(255, 236, 222, .42) 50%, transparent 64%) 150% 0 / 260% 100% no-repeat;
  transition: background-position 1s var(--ease);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow:
    inset 0 0 0 1px rgba(255, 196, 160, .85),
    inset 0 1px 0 rgba(255, 240, 230, .7),
    inset 0 -10px 22px -10px rgba(255, 106, 31, .9),
    0 0 0 1px rgba(255, 106, 31, .3),
    0 20px 50px -10px rgba(255, 106, 31, .9),
    0 0 80px -14px rgba(255, 106, 31, .85);
}
.btn:hover::after { background-position: -50% 0; }
.btn:active { transform: translateY(0) scale(.985); }
.btn .arr { flex: none; transition: transform .45s var(--spring); }
.btn:hover .arr { transform: translateX(4px); }
.btn-sm { --h: 42px; padding: 0 18px; font-size: 15px; }
.btn-xl { --h: 64px; padding: 0 36px; font-size: 18px; }
/* le bouton principal porte un liseré qui tourne */
.btn-live::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1.5px; pointer-events: none;
  background: conic-gradient(from var(--lg-a), transparent 0 58%, rgba(255, 236, 222, .95) 70%, #ff8a4a 78%, transparent 88%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0); -webkit-mask-composite: xor; mask-composite: exclude;
  animation: lgspin 3.6s linear infinite; animation-play-state: var(--pp);
}
.btn-ghost {
  --h: 56px; position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: var(--h); padding: 0 24px; border-radius: 999px; white-space: nowrap;
  font: 600 16px/1 var(--body); color: var(--ink);
  background: linear-gradient(180deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02)), rgba(20, 9, 4, .6);
  box-shadow: inset 0 0 0 1px rgba(255, 220, 200, .18), inset 0 1px 0 rgba(255, 255, 255, .12);
  transition: box-shadow .3s, transform .45s var(--spring), color .3s;
  -webkit-tap-highlight-color: transparent;
}
.btn-ghost:hover { transform: translateY(-2px); box-shadow: inset 0 0 0 1px rgba(255, 176, 128, .5), inset 0 1px 0 rgba(255, 255, 255, .16), 0 10px 30px -12px rgba(255, 106, 31, .5); }
.btn-ghost.btn-sm { --h: 42px; padding: 0 16px; font-size: 15px; }

/* ==========================================================================
   MENU
   ========================================================================== */
.nav {
  position: fixed; top: 12px; left: 50%; z-index: 60; transform: translateX(-50%);
  width: min(1180px, calc(100vw - 24px)); height: 60px;
  display: flex; align-items: center; gap: 18px; padding: 0 9px 0 20px; --lg-r: 999px;
  animation: navIn .9s var(--ease) backwards;
}
.nav.lg { background: linear-gradient(160deg, rgba(255, 230, 214, .08), rgba(255, 255, 255, .015)), rgba(16, 7, 3, .62); }
@keyframes navIn { from { opacity: 0; transform: translate(-50%, -18px); } }

.brand { display: inline-flex; align-items: baseline; gap: 1px; font-family: var(--disp); font-weight: 900; font-stretch: 125%; letter-spacing: -.02em; line-height: 1; color: var(--ink); white-space: nowrap; }
.brand b { font-size: 21px; color: var(--ink); font-weight: 900; }
.brand i { font-style: normal; font-size: 21px; font-weight: 900; background: var(--lum); -webkit-background-clip: text; background-clip: text; color: transparent; }
.brand .dot { align-self: center; width: 13px; height: 13px; margin-right: 10px; border-radius: 50%; background: radial-gradient(circle at 35% 35%, #fff4ec, #ff8a4a 45%, #c44516); box-shadow: 0 0 12px #ff6a1f, 0 0 28px rgba(255, 106, 31, .6); animation: dotPulse 2.8s ease-in-out infinite; animation-play-state: var(--pp); }
@keyframes dotPulse { 50% { box-shadow: 0 0 6px #ff6a1f, 0 0 14px rgba(255, 106, 31, .4); } }

.nav-links { position: relative; display: flex; align-items: center; gap: 2px; margin: 0 auto; padding: 4px; }
.nav-links a { position: relative; z-index: 1; padding: 9px 14px; border-radius: 999px; font: 600 15px/1 var(--body); color: var(--ink-3); white-space: nowrap; transition: color .25s; }
.nav-links a:hover, .nav-links a.active { color: var(--ink); }
/* la pastille qui glisse : verre teinté + trait néon dessous */
.nav-pill {
  position: absolute; top: 4px; bottom: 4px; left: 0; right: 100%; z-index: 0; border-radius: 999px; opacity: 0; pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 138, 74, .22), rgba(255, 106, 31, .08));
  box-shadow: inset 0 0 0 1px rgba(255, 150, 100, .35), 0 0 18px -4px rgba(255, 106, 31, .45);
}
.nav-pill::after { content: ""; position: absolute; left: 30%; right: 30%; bottom: -1px; height: 2px; border-radius: 2px; background: #ffb27a; box-shadow: 0 0 8px #ff8a4a, 0 0 16px rgba(255, 106, 31, .7); }
.has-pill .nav-pill { opacity: 1; transition: left .45s var(--ease-io), right .45s var(--ease-io), opacity .3s; }
.nav-right { display: flex; align-items: center; gap: 8px; }
.nav-login { padding: 0 14px; height: 42px; display: inline-flex; align-items: center; border-radius: 999px; font: 600 15px/1 var(--body); color: var(--ink-2); white-space: nowrap; transition: color .2s, background .2s; }
.nav-login:hover { color: #fff; background: rgba(255, 255, 255, .05); }
.nav-burger { display: none; position: relative; width: 44px; height: 44px; border-radius: 50%; background: rgba(255, 255, 255, .05); box-shadow: inset 0 0 0 1px rgba(255, 220, 200, .16); }
.nav-burger span { position: absolute; left: 13px; right: 13px; height: 2px; border-radius: 2px; background: var(--ink); transition: transform .4s var(--ease), opacity .3s, top .4s var(--ease); }
.nav-burger span:nth-child(1) { top: 16px; }
.nav-burger span:nth-child(2) { top: 21px; }
.nav-burger span:nth-child(3) { top: 26px; }
.nav.open .nav-burger span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav.open .nav-burger span:nth-child(2) { opacity: 0; }
.nav.open .nav-burger span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

/* feuille du menu au téléphone */
.sheet { display: none; }
@media (max-width: 980px) {
  .nav { height: 58px; padding: 0 7px 0 18px; }
  .nav-links, .nav-right .nav-login { display: none; }
  .nav-right { margin-left: auto; }
  .nav-burger { display: block; }
  .sheet {
    display: block; position: fixed; left: 12px; right: 12px; top: 78px; z-index: 59; --lg-r: 26px;
    padding: 10px; opacity: 0; visibility: hidden; transform: translateY(-10px) scale(.98); transform-origin: 50% 0;
    transition: opacity .35s var(--ease), transform .45s var(--ease), visibility 0s .45s;
  }
  .sheet.lg { background: linear-gradient(160deg, rgba(255, 230, 214, .08), rgba(255, 255, 255, .015)), #120704; }
  /* la page s'assombrit derrière la feuille ouverte */
  .nav.open + .sheet { opacity: 1; visibility: visible; transform: none; transition: opacity .35s var(--ease), transform .45s var(--ease), visibility 0s;
    box-shadow: inset 0 0 0 1px rgba(255, 200, 170, .14), inset 0 1px 0 rgba(255, 236, 222, .2), 0 30px 80px -20px #000, 0 0 0 100vmax rgba(5, 2, 1, .62); }
  .sheet a { display: flex; align-items: center; justify-content: space-between; min-height: 54px; padding: 0 16px; border-radius: 16px; font: 700 19px/1 var(--disp); font-stretch: 108%; letter-spacing: -.02em; color: var(--ink); }
  .sheet a + a { box-shadow: 0 -1px 0 rgba(255, 220, 200, .07); }
  .sheet a:active { background: rgba(255, 138, 74, .1); }
  .sheet a svg { color: var(--o-3); }
  .sheet .sheet-login { margin-top: 8px; justify-content: center; font: 600 16px/1 var(--body); color: var(--ink-2); box-shadow: inset 0 0 0 1px rgba(255, 220, 200, .16) !important; }
}
@media (max-width: 440px) {
  .nav { gap: 10px; padding-left: 16px; }
  .nav .brand b { font-size: 19px; }
  .nav .brand i { font-size: 19px; }
  .nav .brand .dot { width: 12px; height: 12px; margin-right: 8px; }
  .nav .btn-sm { --h: 40px; padding: 0 15px; font-size: 14.5px; }
  .nav .btn-sm .arr { display: none; }
  .nav-burger { width: 42px; height: 42px; }
  .nav-burger span { left: 12px; right: 12px; }
  .nav-burger span:nth-child(1) { top: 15px; }
  .nav-burger span:nth-child(2), .nav.open .nav-burger span:nth-child(1), .nav.open .nav-burger span:nth-child(3) { top: 20px; }
  .nav-burger span:nth-child(3) { top: 25px; }
}
@media (max-width: 340px) { .nav .btn-sm { display: none; } }

/* ==========================================================================
   BARRE DE DÉFILEMENT MAISON (souris seulement)
   ========================================================================== */
.sb { display: none; }
@media (hover: hover) and (pointer: fine) {
  html.has-sb { scrollbar-width: none; }
  html.has-sb::-webkit-scrollbar { display: none; }
  .has-sb .sb { display: block; position: fixed; top: 0; right: 0; bottom: 0; z-index: 70; width: 18px; cursor: pointer; }
  .sb::before { content: ""; position: absolute; top: 8px; bottom: 8px; right: 4px; width: 10px; border-radius: 99px; opacity: 0; background: rgba(255, 255, 255, .05); box-shadow: inset 0 0 0 1px rgba(255, 220, 200, .08); transition: opacity .3s; }
  .sb-thumb { position: absolute; top: 0; right: 5px; width: 6px; height: var(--th, 80px); border-radius: 99px; transform: translate3d(0, var(--ty, 8px), 0); transition: width .25s var(--ease), right .25s var(--ease);
    background: linear-gradient(180deg, #ffd9bf, #ff8a4a 50%, #c44516); box-shadow: 0 0 14px rgba(255, 106, 31, .6), inset 0 1px 0 rgba(255, 255, 255, .5); }
  .sb:hover::before, .sb.is-drag::before { opacity: 1; }
  .sb:hover .sb-thumb, .sb.is-drag .sb-thumb { right: 4px; width: 10px; }
}

/* ==========================================================================
   DÉCORS DE SECTION — grilles FIXES (en mouvement elles scintillent),
   faisceaux, orbites, étoiles. Fondus en haut et en bas ; rien ne tourne
   hors écran (.vis posé par le JS).
   ========================================================================== */
.sky { position: absolute; inset: 0; z-index: -1; overflow: hidden; pointer-events: none;
  -webkit-mask-image: linear-gradient(180deg, transparent, #000 var(--sky-in, 14%), #000 calc(100% - var(--sky-out, 14%)), transparent);
  mask-image: linear-gradient(180deg, transparent, #000 var(--sky-in, 14%), #000 calc(100% - var(--sky-out, 14%)), transparent); }
.sky > * { position: absolute; display: block; }
.sky *, .sky *::before, .sky *::after { animation-play-state: paused; }
.sky.vis *, .sky.vis *::before, .sky.vis *::after { animation-play-state: var(--pp); }

.floor { --fc: rgba(255, 120, 50, .42); --fs: 64px; left: -30%; right: -30%; bottom: var(--fb, 0%); height: var(--fh, 56%); overflow: hidden;
  transform: perspective(var(--fp, 760px)) rotateX(var(--fa, 60deg)); transform-origin: 50% 100%;
  -webkit-mask-image: radial-gradient(60% 100% at 50% 100%, #000 24%, transparent 80%); mask-image: radial-gradient(60% 100% at 50% 100%, #000 24%, transparent 80%); }
.floor > i { position: absolute; inset: 0;
  background-image: linear-gradient(var(--fc) 1.5px, transparent 1.5px), linear-gradient(90deg, var(--fc) 1.5px, transparent 1.5px);
  background-size: var(--fs) var(--fs); background-position: 50% 100%; }
.sky .glow { left: 50%; width: var(--gw, 1000px); max-width: 160vw; height: var(--gh, 460px); transform: translateX(-50%); border-radius: 50%; background: radial-gradient(closest-side, var(--gc, rgba(255, 90, 20, .3)), transparent); }
.shafts { inset: 0; }
.shafts b { position: absolute; top: -8%; left: var(--x, 30%); width: var(--w, 220px); height: 110%; transform-origin: 50% 0; transform: rotate(var(--r, 0deg));
  background: radial-gradient(ellipse 50% 100% at 50% 0%, var(--c, rgba(255, 200, 160, .12)), transparent 100%); animation: sway var(--sd, 11s) ease-in-out infinite alternate; }
@keyframes sway { to { transform: rotate(calc(var(--r, 0deg) + var(--sa, 7deg))); } }
.stars { inset: 0; opacity: .55;
  background-image: radial-gradient(1.4px 1.4px at 22px 34px, #fff, transparent), radial-gradient(1px 1px at 146px 96px, rgba(255, 226, 206, .9), transparent),
    radial-gradient(1.7px 1.7px at 262px 170px, #fff, transparent), radial-gradient(1px 1px at 338px 44px, rgba(255, 190, 150, .85), transparent),
    radial-gradient(1.2px 1.2px at 84px 226px, rgba(255, 255, 255, .8), transparent), radial-gradient(1px 1px at 204px 250px, rgba(255, 178, 122, .8), transparent);
  background-size: 380px 280px; }
.stars.b { background-size: 540px 360px; background-position: 120px 70px; animation: twinkleLayer 5s ease-in-out infinite alternate; }
@keyframes twinkleLayer { from { opacity: .12; } to { opacity: .7; } }
.dots { inset: 0; background-image: radial-gradient(rgba(255, 150, 90, .42) 1.2px, transparent 1.8px); background-size: 26px 26px;
  -webkit-mask-image: radial-gradient(75% 62% at 50% 40%, #000, transparent 78%); mask-image: radial-gradient(75% 62% at 50% 40%, #000, transparent 78%); }
.orbits { left: 50%; top: var(--oy, 58%); width: min(1500px, 190vw); aspect-ratio: 1; transform: translate(-50%, -50%) perspective(1000px) rotateX(78deg); }
.orbits i { position: absolute; inset: var(--o, 0); border-radius: 50%; border: 1.5px solid rgba(255, 140, 70, calc(var(--a, .14) * 1.8)); }
.orbits i:nth-child(2) { --o: 12%; --a: .2; border-style: dashed; animation: spin 70s linear infinite; }
.orbits i:nth-child(3) { --o: 24%; --a: .26; }
.orbits i:nth-child(4) { --o: 34%; --a: .18; border-style: dashed; animation: spin 50s linear infinite reverse; }
@keyframes spin { to { transform: rotate(360deg); } }
.ring-o { width: 560px; aspect-ratio: 1; border-radius: 50%; border: 1.5px dashed rgba(255, 178, 122, .2); animation: spin 90s linear infinite; }
.ring-o::after { content: ""; position: absolute; inset: 16%; border-radius: 50%; border: 1px solid rgba(255, 138, 74, .16); }
/* braises qui montent (générées par le JS, data-n) */
.embers { inset: 0; }
.embers b { position: absolute; left: var(--x); bottom: -10px; width: var(--s); height: var(--s); border-radius: 50%; background: #ffb27a; box-shadow: 0 0 10px rgba(255, 106, 31, .95); opacity: 0; animation: rise var(--sd, 9s) linear var(--dl) infinite; }
@keyframes rise { 0% { transform: translateY(0); opacity: 0; } 12% { opacity: .85; } 80% { opacity: .45; } 100% { transform: translateY(-900px); opacity: 0; } }
/* paillettes (générées par le JS, data-n) */
.sparks { inset: 0; }
.sparks i { position: absolute; left: var(--x); top: var(--y); width: calc(var(--s) * 3); height: calc(var(--s) * 3); opacity: 0;
  background: radial-gradient(closest-side, #fff, transparent 60%), linear-gradient(90deg, transparent, #ffd9bf 50%, transparent) center / 100% 1.5px no-repeat, linear-gradient(transparent, #ffd9bf 50%, transparent) center / 1.5px 100% no-repeat;
  animation: sparkle var(--sd, 2.8s) ease-in-out var(--dl) infinite; }
@keyframes sparkle { 0%, 100% { opacity: 0; transform: scale(.3) rotate(0deg); } 50% { opacity: 1; transform: scale(1) rotate(45deg); } }

/* ==========================================================================
   PIED DE PAGE — un mur quadrillé sous l'arête (coin de cube, comme larping)
   ========================================================================== */
.foot { position: relative; isolation: isolate; padding: 56px 0 40px; }
/* le sol du dernier appel, repris de larping : perspective 760 px, 60°, pas de 64 px centré ;
   opaque à l'arête, il s'efface vers l'horizon. FIXE (en mouvement, les lignes clignotent). */
.sky-night .floor { --fh: 58%; --fb: 0%; --fa: 60deg; --fp: 760px; --fs: 64px; --fc: rgba(255, 120, 45, .42); left: -30%; right: -30%;
  -webkit-mask-image: linear-gradient(0deg, #000 0%, #000 14%, transparent 88%); mask-image: linear-gradient(0deg, #000 0%, #000 14%, transparent 88%); }
/* le mur sous l'arête : même pas, mêmes colonnes centrées, même couleur que le sol → coin de cube */
.foot::before { content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image: linear-gradient(rgba(255, 120, 45, .42) 1.5px, transparent 1.5px), linear-gradient(90deg, rgba(255, 120, 45, .42) 1.5px, transparent 1.5px);
  background-size: 64px 64px; background-position: 50% 0;
  -webkit-mask-image: linear-gradient(180deg, #000, rgba(0, 0, 0, .35) 30%, transparent 75%); mask-image: linear-gradient(180deg, #000, rgba(0, 0, 0, .35) 30%, transparent 75%); }
.foot::after { content: ""; position: absolute; left: 0; right: 0; top: -1px; height: 2px; pointer-events: none; background: linear-gradient(90deg, rgba(255, 106, 31, .35), rgba(255, 220, 196, .95) 50%, rgba(255, 106, 31, .35)); box-shadow: 0 0 22px 2px rgba(255, 90, 20, .55); }
.foot-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 32px; }
.foot-brand .brand b { font-size: 26px; }
.foot-brand .brand .dot { width: 16px; height: 16px; margin-right: 12px; }
.foot-brand .brand i { font-size: 26px; }
.foot-brand p { margin: 14px 0 0; max-width: 300px; font: 700 13.5px/1.5 var(--body); letter-spacing: .08em; text-transform: uppercase; color: var(--ink-3); }
.foot h4 { margin: 4px 0 14px; font: 700 13.5px/1 var(--body); letter-spacing: .1em; text-transform: uppercase; color: var(--o-3); }
.foot ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.foot ul a { font: 500 15.5px/1.4 var(--body); color: var(--ink-2); transition: color .2s; }
.foot ul a:hover { color: #fff; }
.foot-legal { margin-top: 44px; padding-top: 22px; border-top: 1px solid var(--line); display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px 28px; font: 500 13.5px/1.6 var(--body); color: var(--ink-4); }
.foot-legal p { margin: 0; max-width: 820px; }
@media (max-width: 860px) {
  .foot-grid { grid-template-columns: 1fr 1fr; gap: 28px 20px; }
  .foot-brand { grid-column: 1 / -1; }
}

/* ==========================================================================
   MEMBRE CONNECTÉ (classe `connecte` posée dans <head>, voir index.html) :
   la barre ne propose plus « Rejoindre LBCX », seulement « Connexion »,
   qui mène directement à l'espace membre. Visiteur : rien ne change.
   ========================================================================== */
.nav-espace { display: none; }
.connecte .nav .nav-join,
.connecte .nav .nav-login { display: none; }
.connecte .nav .nav-espace { display: inline-flex; }