/* ==========================================================================
   RYL DIGITAL — Système de design & de motion
   1. Tokens        2. Base        3. Utilitaires de motion
   4. Header/Nav    5. Composants  6. Hero
   7. Sections WP   8. Expertises  9. Services / Timeline
   10. Formulaires  11. Footer     12. Responsive & accessibilité
   ========================================================================== */

/* ---------------------------------------------------------------- 1. TOKENS */
:root {
  /* Couleurs */
  --bg: #05060b;
  --bg-2: #080a12;
  --panel: #0c0f18;
  --panel-2: #111521;
  --line: rgba(148, 176, 252, 0.09);
  --line-strong: rgba(148, 176, 252, 0.22);
  --text: #edf1ff;
  --text-2: #9aa4c0;
  --text-3: #8b95ab;
  --accent: #4d8dff;
  --accent-2: #37e0ff;
  --accent-soft: rgba(77, 141, 255, 0.14);
  --ok: #3ecf8e;
  --err: #ff6b7a;

  /* Dégradés */
  --grad-accent: linear-gradient(120deg, #4d8dff, #37e0ff);
  --grad-text: linear-gradient(115deg, #dfe7ff 20%, #7aa5ff 55%, #37e0ff 90%);
  --grad-line: linear-gradient(90deg, transparent, var(--accent), var(--accent-2), transparent);

  /* Espacements */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px;
  --maxw: 1180px;
  --nav-h: 76px;

  /* Rayons */
  --r-s: 10px; --r-m: 16px; --r-l: 24px; --r-xl: 32px;

  /* --- Système de motion (source unique de vérité) --- */
  /* Durées : 1 = micro, 2 = micro-tap, 3 = bloc, 4 = scène, 5 = décor lent */
  --dur-1: 0.16s; --dur-2: 0.3s; --dur-3: 0.55s;
  --dur-4: 0.85s; --dur-5: 18s;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);        /* out  — entrées, sorties, hover  */
  --ease-io: cubic-bezier(0.65, 0, 0.35, 1);     /* inout — tracés, barres          */
  --ease-swift: cubic-bezier(0.4, 0, 0.2, 1);    /* UI classique                    */
  --stagger: 70ms;                              /* pas des suites coordonnées      */
  --draw: 1.6s;                                 /* tracés SVG                      */

  /* Parallaxe : --mx / --my alimentés par JS (pointeur), --py par JS (scroll) */
}

/* ------------------------------------------------------------------- 2. BASE */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html:focus-within { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-size: 1rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

h1, h2, h3, h4 { font-family: "Space Grotesk", "Inter", system-ui, sans-serif; line-height: 1.08; letter-spacing: -0.02em; margin: 0; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; padding: 0; }
ul { margin: 0; padding: 0; list-style: none; }
::selection { background: rgba(77, 141, 255, 0.35); color: #fff; }

:focus-visible { outline: 2px solid var(--accent-2); outline-offset: 3px; border-radius: 4px; }

.skip-link {
  position: fixed; top: -60px; left: 16px; z-index: 200;
  padding: 10px 18px; border-radius: 10px;
  background: var(--accent); color: #04122e; font-weight: 600;
  opacity: 0; pointer-events: none;
  transition: top var(--dur-2) var(--ease), opacity var(--dur-2) var(--ease);
}
.skip-link:focus { top: 12px; opacity: 1; pointer-events: auto; }

.wrap { width: min(var(--maxw), 100% - 2 * var(--sp-6)); margin-inline: auto; }
.wrap-wide { width: min(1340px, 100% - 2 * var(--sp-5)); margin-inline: auto; }

.grad-text { background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  clip-path: inset(50%); overflow: hidden; white-space: nowrap;
}

/* ------------------------------------------------------- 3. SYSTÈME DE MOTION */
/* Tout ce qui est masqué avant révélation est scoping sous html.js :
   sans JavaScript, 100 % du contenu est visible et lisible. */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition:
    opacity var(--dur-4) var(--ease),
    transform var(--dur-4) var(--ease);
  transition-delay: calc(var(--i, 0) * var(--stagger));
  will-change: opacity, transform;
}
html.js [data-reveal="left"]  { transform: translateX(-36px); }
html.js [data-reveal="right"] { transform: translateX(36px); }
html.js [data-reveal="scale"] { transform: translateY(18px) scale(0.965); }
html.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
  transition-delay: var(--i, 0);
}
/* Passage : libérer le GPU dès la fin de la transition */
[data-reveal].is-in { will-change: auto; }

/* Ligne SVG qui se dessine (token unifié : pathLength="1") */
html.js .draw path,
html.js .draw line,
html.js .draw circle {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset var(--draw) var(--ease-io);
}
html.js .draw.is-in path,
html.js .draw.is-in line,
html.js .draw.is-in circle { stroke-dashoffset: 0; }

/* Soulignement animé des liens de texte */
.link-anim {
  position: relative; padding-bottom: 3px;
}
.link-anim::after {
  content: ""; position: absolute; left: 0; bottom: 0; height: 1px; width: 100%;
  background: var(--grad-line);
  transform: scaleX(0); transform-origin: right;
  transition: transform var(--dur-3) var(--ease);
}
.link-anim:hover::after, .link-anim:focus-visible::after { transform: scaleX(1); transform-origin: left; }

/* Chips / tags */
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(13, 17, 28, 0.7);
  color: var(--text-2); font-size: 0.8rem; letter-spacing: 0.02em;
  transition: border-color var(--dur-2) var(--ease), color var(--dur-2) var(--ease);
}
.chip:hover, .chip:focus-visible { border-color: var(--accent); color: var(--text); }

/* Boutons — deux familles : primary (rempli au survol) / ghost (liseré lumineux) */
.btn {
  position: relative; display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 28px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem; letter-spacing: 0.01em;
  overflow: hidden; isolation: isolate;
  transition: color var(--dur-2) var(--ease), transform var(--dur-1) var(--ease);
}
.btn:active { transform: scale(0.97); }
.btn .btn-arrow { transition: transform var(--dur-2) var(--ease); }
.btn:hover .btn-arrow, .btn:focus-visible .btn-arrow { transform: translateX(4px); }

.btn-primary { background: var(--grad-accent); color: #04102a; }
.btn-primary::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: linear-gradient(120deg, #37e0ff, #8a7cff);
  opacity: 0; transform: translateX(-24%);
  transition: opacity var(--dur-3) var(--ease), transform var(--dur-3) var(--ease);
}
.btn-primary:hover, .btn-primary:focus-visible { color: #03122c; }
.btn-primary:hover::before, .btn-primary:focus-visible::before { opacity: 1; transform: translateX(0); }

.btn-ghost {
  color: var(--text);
  box-shadow: inset 0 0 0 1px var(--line-strong);
}
.btn-ghost::before {
  content: ""; position: absolute; inset: 0; z-index: -1; border-radius: inherit;
  background: radial-gradient(120% 160% at 50% 140%, rgba(77, 141, 255, 0.28), transparent 65%);
  opacity: 0; transition: opacity var(--dur-3) var(--ease);
}
.btn-ghost:hover::before, .btn-ghost:focus-visible::before { opacity: 1; }
.btn-ghost:hover { box-shadow: inset 0 0 0 1px rgba(77, 141, 255, 0.55); }

/* Carte à liseré lumineux (masque dégradé, allumé au survol/focus) */
.glow-card {
  position: relative; isolation: isolate;
  background: linear-gradient(160deg, var(--panel-2), var(--panel) 70%);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  transition: transform var(--dur-3) var(--ease), border-color var(--dur-3) var(--ease), box-shadow var(--dur-3) var(--ease);
}
.glow-card::before {
  content: ""; position: absolute; inset: -1px; z-index: 1; border-radius: inherit; padding: 1px;
  background: linear-gradient(130deg, rgba(77, 141, 255, 0.85), transparent 38%, transparent 62%, rgba(55, 224, 255, 0.7));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  opacity: 0; transition: opacity var(--dur-3) var(--ease);
  pointer-events: none;
}
.glow-card:hover, .glow-card:focus-within {
  transform: translateY(-6px);
  border-color: transparent;
  box-shadow: 0 22px 50px -22px rgba(8, 30, 80, 0.55);
}
.glow-card:hover::before, .glow-card:focus-within::before { opacity: 1; }

/* Spot qui suit le curseur (pointer fin uniquement, alimenté par JS via --gx/--gy) */
[data-spot] { position: relative; overflow: hidden; }
[data-spot]::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(380px circle at var(--gx, 50%) var(--gy, 0%), rgba(90, 148, 255, 0.1), transparent 72%);
  opacity: 0; transition: opacity var(--dur-3) var(--ease);
}
html:not(.touch) [data-spot]:hover::after { opacity: 1; }

/* Barre de progression de lecture */
#progress {
  position: fixed; top: 0; left: 0; right: 0; height: 2px; z-index: 120;
  background: var(--grad-accent);
  transform: scaleX(0); transform-origin: 0 50%;
  opacity: 0; transition: opacity var(--dur-3) var(--ease);
}
#progress.is-active { opacity: 1; }

/* ---------------------------------------------------------- 4. HEADER & NAV */
.site-header {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  height: var(--nav-h);
  transition: background var(--dur-3) var(--ease), border-color var(--dur-3) var(--ease), height var(--dur-3) var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header.is-scrolled {
  height: 64px;
  background: rgba(5, 6, 11, 0.78);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line);
}
.header-in {
  height: 100%; display: flex; align-items: center; justify-content: space-between; gap: var(--sp-5);
}

.logo { display: inline-flex; align-items: baseline; gap: 2px; font-family: "Space Grotesk", sans-serif; font-size: 1.28rem; letter-spacing: 0.04em; }
.logo b { font-weight: 700; color: var(--text); }
.logo b .dot { color: var(--accent); }
.logo span { color: var(--text-2); font-weight: 400; font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.3em; margin-left: 8px; }

.nav { display: flex; align-items: center; gap: var(--sp-1); }
.nav a {
  position: relative; padding: 10px 14px; font-size: 0.92rem; color: var(--text-2);
  border-radius: 10px;
  white-space: nowrap;
  transition: color var(--dur-2) var(--ease);
}
.nav a .nav-dash {
  position: absolute; left: 14px; right: 14px; bottom: 6px; height: 2px; border-radius: 2px;
  background: var(--grad-accent);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-3) var(--ease);
}
.nav a:hover, .nav a:focus-visible { color: var(--text); }
.nav a:hover .nav-dash, .nav a:focus-visible .nav-dash { transform: scaleX(1); }
.nav a.is-active { color: var(--text); }
.nav a.is-active .nav-dash { transform: scaleX(1); }

.nav-meta { display: flex; align-items: center; gap: var(--sp-4); }
.lang-switch {
  font-size: 0.82rem; letter-spacing: 0.14em; color: var(--text-2);
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 999px;
  transition: color var(--dur-2) var(--ease), border-color var(--dur-2) var(--ease);
}
.lang-switch:hover, .lang-switch:focus-visible { color: var(--accent-2); border-color: var(--line-strong); }
.header-cta { padding: 10px 22px; font-size: 0.88rem; }

/* Burger */
.nav-toggle { display: none; position: relative; width: 44px; height: 44px; z-index: 110; }
.nav-toggle span {
  position: absolute; left: 10px; right: 12px; height: 2px; border-radius: 2px;
  background: var(--text); transition: transform var(--dur-3) var(--ease), opacity var(--dur-2) var(--ease);
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 21.5px; }
.nav-toggle span:nth-child(3) { top: 28px; }
html.menu-open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
html.menu-open .nav-toggle span:nth-child(2) { opacity: 0; transform: scaleX(0.4); }
html.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ------------------------------------------------------------ 5. HERO — FACE */
.hero {
  position: relative; min-height: 100svh;
  display: flex; align-items: center;
  padding: calc(var(--nav-h) + var(--sp-7)) 0 var(--sp-8);
  overflow: clip;
}

/* Décor : dégradés halos animés, grille technologique */
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.halo {
  position: absolute; border-radius: 50%;
  background: radial-gradient(circle at center, var(--halo-color, rgba(77, 141, 255, 0.32)), transparent 70%);
  will-change: transform;
}
.halo-1 { --halo-color: rgba(77, 141, 255, 0.34); width: 640px; height: 640px; top: -18%; right: -6%; animation: halo-float-1 var(--dur-5) ease-in-out infinite alternate; }
.halo-2 { --halo-color: rgba(55, 224, 255, 0.2); width: 520px; height: 520px; bottom: -24%; left: -10%; animation: halo-float-2 calc(var(--dur-5) * 1.35) ease-in-out infinite alternate; }
.halo-3 { --halo-color: rgba(138, 124, 255, 0.16); width: 420px; height: 420px; top: 30%; left: 34%; animation: halo-float-1 calc(var(--dur-5) * 0.8) ease-in-out infinite alternate-reverse; }
@keyframes halo-float-1 { from { transform: translate3d(-40px, -30px, 0) scale(1); } to { transform: translate3d(60px, 50px, 0) scale(1.12); } }
@keyframes halo-float-2 { from { transform: translate3d(30px, 40px, 0) scale(1.05); } to { transform: translate3d(-50px, -40px, 0) scale(0.94); } }

.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(148, 176, 252, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 176, 252, 0.055) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 78%);
  mask-image: radial-gradient(ellipse 90% 70% at 50% 40%, #000 30%, transparent 78%);
}
.hero-bottom-fade {
  position: absolute; inset: auto 0 0 0; height: 24vh;
  background: linear-gradient(transparent, var(--bg));
  pointer-events: none;
}

.hero-in { position: relative; display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr); gap: var(--sp-7); align-items: center; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.8rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent-2);
}
.hero-eyebrow .pulse {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent-2);
  box-shadow: 0 0 0 0 rgba(55, 224, 255, 0.5);
  animation: pulse-dot 2.4s var(--ease) infinite;
}
@keyframes pulse-dot {
  0% { box-shadow: 0 0 0 0 rgba(55, 224, 255, 0.45); }
  70% { box-shadow: 0 0 0 9px rgba(55, 224, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(55, 224, 255, 0); }
}

.hero-title {
  margin: var(--sp-5) 0 var(--sp-5);
  font-size: clamp(2.6rem, 6.4vw, 4.6rem);
  font-weight: 700;
}
.hero-title .line { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }
.hero-title .line-in { display: inline-block; }
html.js .hero-title .line-in {
  transform: translateY(112%);
  transition: transform 1s var(--ease);
  transition-delay: calc(0.12s + var(--l, 0) * 0.12s);
}
html.js body.is-ready .hero-title .line-in { transform: translateY(0); }

.hero-sub {
  max-width: 540px; color: var(--text-2); font-size: 1.08rem; line-height: 1.75;
}
html.js .hero-sub, html.js .hero-eyebrow, html.js .hero-ctas, html.js .hero-note {
  opacity: 0; transform: translateY(18px);
  transition: opacity 0.9s var(--ease), transform 0.9s var(--ease);
}
html.js .hero-eyebrow { transition-delay: 0.05s; }
html.js .hero-sub { transition-delay: 0.45s; }
html.js .hero-ctas { transition-delay: 0.6s; }
html.js body.is-ready .hero-eyebrow,
html.js body.is-ready .hero-sub,
html.js body.is-ready .hero-ctas { opacity: 1; transform: none; }
html.js body.is-ready .hero-note { opacity: 1; }
html.js .hero-note { transition-delay: 0.85s; }

/* Couche de parallaxe pointeur (pilotée par des variables CSS mises à jour en rAF) */
.hv-layer {
  position: absolute; inset: 0;
  transform: translate3d(calc(var(--mx, 0) * var(--depth, 10px)), calc(var(--my, 0) * var(--depth, 14px)), 0);
  will-change: transform;
}

.hero-ctas { display: flex; flex-wrap: wrap; gap: var(--sp-4); margin-top: var(--sp-6); }
.hero-note { margin-top: var(--sp-6); color: var(--text-3); font-size: 0.85rem; }

/* Visuel DU HERO : constellation réseau + cartes flottantes */
.hero-visual { position: relative; height: min(520px, 60vh); }
.constellation { position: absolute; inset: 0; height: 100%; width: 100%; overflow: visible; }
/* Traits du réseau — l'opacité de chaque path module localement */
.constellation path { stroke: rgba(104, 138, 255, 0.6); stroke-width: 1.1; stroke-linecap: round; stroke-linejoin: round; }
.constellation .node-pulse { animation: node-glow 3.4s ease-in-out infinite; transform-origin: center; transform-box: fill-box; }
.constellation .node-pulse:nth-child(odd) { animation-delay: 1.6s; }
@keyframes node-glow { 0%, 100% { opacity: 0.5; } 50% { opacity: 1; } }

.float-card {
  position: absolute; z-index: 2;
  padding: 18px 20px; border-radius: var(--r-m);
  border: 1px solid var(--line-strong);
  background: rgba(12, 16, 26, 0.66);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 60px -30px rgba(0, 0, 0, 0.8);
  will-change: transform;
}
.float-card .fc-label { font-size: 0.68rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--text-3); margin-bottom: 10px; }
.fc-code { font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 0.78rem; line-height: 1.9; color: var(--text-2); }
.fc-code .k { color: var(--accent-2); } .fc-code .s { color: #9dd6ff; } .fc-code .c { color: var(--text-3); }
.fc-card-1 { top: 6%; right: 3%; --depth: 14px; animation: float-slow 9s ease-in-out infinite alternate; }
.fc-card-2 { bottom: 10%; left: 0; --depth: 26px; animation: float-slow 11s ease-in-out infinite alternate-reverse; }
.fc-card-3 { top: 42%; right: 30%; --depth: 10px; font-size: 0.8rem; color: var(--text-2); animation: float-slow 7s ease-in-out infinite alternate; }
@keyframes float-slow { from { transform: translate3d(0, -9px, 0); } to { transform: translate3d(0, 9px, 0); } }

/* Écrans tactiles (pas de pointeur fin) : les couches .hv-layer respirent
   seules, chaque amplitude suit sa profondeur — pas de JS, CSS pur.
   Neutralisé d'office par prefers-reduced-motion et html.low-power. */
@media (hover: none) and (pointer: coarse) and (prefers-reduced-motion: no-preference) {
  html:not(.low-power) .hv-layer { animation: layer-drift var(--drift-d, 15s) ease-in-out infinite alternate; will-change: transform; }
  html:not(.low-power) .hv-layer[data-depth="12"] { --drift-x: 7px;   --drift-y: 9px;  --drift-d: 17s; }
  html:not(.low-power) .hv-layer[data-depth="18"] { --drift-x: 10px;  --drift-y: 7px;  --drift-d: 13s; }
  html:not(.low-power) .hv-layer[data-depth="30"] { --drift-x: 15px;  --drift-y: 11px; --drift-d: 19s; }
  html:not(.low-power) .hv-layer[data-depth="22"] { --drift-x: 8px;   --drift-y: 12px; --drift-d: 15s; }
}
@keyframes layer-drift {
  from { transform: translate3d(calc(var(--drift-x, 8px) * -1), calc(var(--drift-y, 8px) * -1), 0); }
  to   { transform: translate3d(var(--drift-x, 8px), var(--drift-y, 8px), 0); }
}

.fc-spark { width: 150px; height: 44px; }

/* Indicateur de défilement */
.scroll-cue {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--text-3); font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase;
  transition: opacity var(--dur-3) var(--ease);
}
.scroll-cue .cue-line { width: 1px; height: 44px; background: linear-gradient(var(--accent-2), transparent); animation: cue 2.2s var(--ease-io) infinite; transform-origin: top; }
@keyframes cue { 0% { transform: scaleY(0); } 45% { transform: scaleY(1); } 100% { transform: scaleY(1); opacity: 0; } }
html.js .scroll-cue { opacity: 0; transition-delay: 1.2s; }
html.js body.is-ready .scroll-cue { opacity: 1; }

/* ------------------------------------------------ 6. SECTIONS & TIRES ÉDITORIAUX */
.section { position: relative; padding: var(--sp-8) 0; }
.section-lg { padding: calc(var(--sp-8) * 1.4) 0; }
.section-head { max-width: 640px; margin-bottom: var(--sp-7); }
.kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 0.78rem; letter-spacing: 0.22em; text-transform: uppercase; color: var(--accent-2);
  margin-bottom: 14px;
}
.kicker::before { content: ""; width: 26px; height: 1px; background: var(--grad-accent); }
.section-title { font-size: clamp(1.9rem, 3.6vw, 2.9rem); font-weight: 700; }
.section-head p { margin-top: var(--sp-4); color: var(--text-2); font-size: 1.02rem; }

.section-divider {
  height: 1px; border: 0; margin: 0 auto; width: min(560px, 70%);
  background: var(--grad-line); opacity: 0.35;
}

/* Décor de fond de section facultatif (halo discret en profondeur) */
.deco-halo {
  position: absolute; width: 480px; height: 480px; border-radius: 50%;
  background: radial-gradient(circle, rgba(77, 141, 255, 0.12), transparent 70%);
  filter: blur(40px); pointer-events: none;
}

/* Bandeau */
.statements-strip { display: flex; flex-wrap: wrap; gap: var(--sp-5); justify-content: space-between; align-items: center; }
.statements-strip .st { display: flex; align-items: center; gap: 10px; color: var(--text-3); font-size: 0.9rem; letter-spacing: 0.06em; }
.statements-strip .st::before { content: "/"; color: var(--accent); font-weight: 600; }

/* ------------------------------------------------------------ 7. EXPERTISES — ACCORD DE INDEX */
/* Index des expertises (accueil) : lignes éditoriales, révélation au clic/clavier */
.xindex { border-top: 1px solid var(--line); }
.xrow { border-bottom: 1px solid var(--line); position: relative; }
.xrow::after {
  content: ""; position: absolute; left: -14px; right: -14px; bottom: -1px; height: 1px;
  background: var(--grad-line); opacity: 0;
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur-4) var(--ease), opacity var(--dur-3) var(--ease);
}
.xrow:hover::after, .xrow:focus-within::after, .xrow.is-open::after { transform: scaleX(1); opacity: 0.9; }

.xrow-btn {
  width: 100%; display: grid;
  grid-template-columns: 64px 1fr auto 40px;
  align-items: baseline; gap: var(--sp-4);
  padding: clamp(20px, 3.4vw, 32px) 14px;
  text-align: left;
}
.xrow-num {
  font-family: "Space Grotesk", sans-serif; font-size: 0.95rem; color: var(--text-3);
  transition: color var(--dur-3) var(--ease);
  letter-spacing: 0.08em;
}
.xrow-name {
  font-family: "Space Grotesk", sans-serif; font-weight: 600; letter-spacing: -0.01em;
  font-size: clamp(1.5rem, 3.4vw, 2.4rem); color: var(--text-2);
  transition: color var(--dur-3) var(--ease), transform var(--dur-3) var(--ease);
}
.xrow:hover .xrow-name, .xrow-btn:focus-visible .xrow-name, .xrow.is-open .xrow-name {
  color: var(--text); transform: translateX(6px);
}
.xrow:hover .xrow-num, .xrow-btn:focus-visible .xrow-num, .xrow.is-open .xrow-num { color: var(--accent); }
.xrow-hint {
  color: var(--text-3); font-size: 0.9rem; max-width: 300px; text-align: right;
  transition: color var(--dur-3) var(--ease);
}
.xrow:hover .xrow-hint { color: var(--text-2); }
.xrow-arrow {
  width: 34px; height: 34px; border-radius: 50%;
  display: grid; place-items: center; justify-self: end;
  border: 1px solid var(--line);
  transition: transform var(--dur-3) var(--ease), border-color var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
}
.xrow-arrow svg { width: 14px; height: 14px; stroke: currentColor; transition: transform var(--dur-3) var(--ease); }
.xrow:hover .xrow-arrow { border-color: var(--line-strong); background: var(--accent-soft); }
.xrow.is-open .xrow-arrow { transform: rotate(90deg); background: var(--accent-soft); border-color: var(--accent); }

.xrow-panel {
  display: grid; grid-template-rows: 0fr;
  transition: grid-template-rows var(--dur-4) var(--ease);
}
.xrow.is-open .xrow-panel { grid-template-rows: 1fr; }
.xrow-body { overflow: hidden; min-height: 0; }
.xrow-body-pad {
  padding: 0 14px clamp(22px, 3vw, 30px);
  margin-left: 64px; max-width: 620px;
  display: grid; gap: var(--sp-4);
  color: var(--text-2);
  opacity: 0; transform: translateY(-6px);
  transition: opacity var(--dur-3) var(--ease), transform var(--dur-3) var(--ease);
}
.xrow.is-open .xrow-body-pad { opacity: 1; transform: none; transition-delay: 0.12s; }
.xrow-tags { display: flex; flex-wrap: wrap; gap: 8px; }

/* ----------------------------------------- 8. BLOCS EXPERTISES DÉTAILLÉS (page) */
.x-detail {
  display: grid; grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(var(--sp-6), 6vw, var(--sp-8));
  padding: clamp(var(--sp-6), 5vw, var(--sp-8)) 0;
  border-bottom: 1px solid var(--line);
  align-items: center;
}
.x-detail:nth-child(even) .x-detail-visual { order: 2; }
.x-detail-visual {
  position: relative; aspect-ratio: 4 / 3; display: grid; place-items: center;
  border-radius: var(--r-l); border: 1px solid var(--line);
  background:
    radial-gradient(80% 90% at 70% 20%, rgba(77, 141, 255, 0.08), transparent 60%),
    linear-gradient(160deg, var(--panel-2), var(--panel));
}
.x-icon { width: 96px; height: 96px; }
.x-icon .x-icon-ring { transform-origin: center; transform-box: fill-box; transition: transform 1.2s var(--ease); }
.x-detail:hover .x-icon .x-icon-ring, .x-detail:focus-within .x-icon .x-icon-ring { transform: rotate(120deg); }
.x-detail-copy h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); margin-bottom: var(--sp-4); }
.x-detail-copy p { color: var(--text-2); max-width: 52ch; }
.x-detail-copy .x-highlights { margin-top: var(--sp-5); display: grid; gap: 10px; }
.x-detail-copy .x-highlights li {
  display: flex; gap: 12px; color: var(--text-2);
  padding-left: 0;
}
.x-detail-copy .x-highlights li::before {
  content: ""; flex: none; width: 18px; height: 2px; margin-top: 12px;
  background: var(--grad-accent); border-radius: 2px;
  transform: scaleX(0.4); transform-origin: left;
  transition: transform var(--dur-3) var(--ease);
}
.x-detail:hover .x-highlights li::before, .x-detail:focus-within .x-highlights li::before { transform: scaleX(1); }

/* ------------------------------------------------------------ 9. SERVICES */
.svc-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--sp-5); }
.svc-card {
  padding: clamp(24px, 3.4vw, 40px);
  display: flex; flex-direction: column; gap: var(--sp-4);
}
.svc-card .svc-num {
  font-family: "Space Grotesk", sans-serif; font-size: 0.9rem; color: var(--text-3); letter-spacing: 0.14em;
}
.svc-card h3 { font-size: 1.45rem; }
.svc-card p { color: var(--text-2); font-size: 0.97rem; }
.svc-card .svc-link { margin-top: auto; display: inline-flex; align-items: center; gap: 8px; color: var(--accent-2); font-size: 0.9rem; font-weight: 600; }
.svc-card .svc-link .btn-arrow { transition: transform var(--dur-2) var(--ease); }
.svc-card:hover .svc-link .btn-arrow { transform: translateX(5px); }

/* Timeline processus */
.timeline { position: relative; margin-top: var(--sp-7); padding-left: 34px; }
.timeline::before {
  content: ""; position: absolute; top: 6px; bottom: 6px; left: 7px; width: 2px; border-radius: 2px;
  background: linear-gradient(var(--accent), var(--accent-2), transparent);
  transform: scaleY(0); transform-origin: top;
  transition: transform 1.4s var(--ease-io);
}
.timeline.is-in::before { transform: scaleY(1); }
.tl-step { position: relative; padding: 0 0 var(--sp-6) 0; }
.tl-step::before {
  content: ""; position: absolute; left: -31px; top: 8px;
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--accent);
  transition: background var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease);
}
.tl-step:hover::before { background: var(--accent); box-shadow: 0 0 12px rgba(77, 141, 255, 0.7); }
.tl-step .tl-when { font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--accent-2); }
.tl-step h3 { margin: 8px 0 6px; font-size: 1.3rem; }
.tl-step p { color: var(--text-2); max-width: 58ch; }

/* Manifesto */
.manifesto {
  font-family: "Space Grotesk", sans-serif;
  font-size: clamp(1.5rem, 3.4vw, 2.6rem); font-weight: 600; line-height: 1.25;
  max-width: 21ch; margin-inline: auto; text-align: left;
  color: var(--text);
}
.manifesto .dim { color: var(--text-3); }

/* Panneau d'appel (recrutement / contact) */
.cta-panel {
  position: relative; overflow: hidden;
  border-radius: var(--r-xl);
  border: 1px solid var(--line);
  padding: clamp(var(--sp-6), 5vw, var(--sp-8));
  background:
    radial-gradient(90% 130% at 85% 0%, rgba(77, 141, 255, 0.16), transparent 55%),
    linear-gradient(160deg, var(--panel-2), var(--panel));
  display: flex; flex-direction: column; gap: var(--sp-5); align-items: flex-start;
}
.cta-panel h2 { font-size: clamp(1.8rem, 3.4vw, 2.7rem); max-width: 16ch; }
.cta-panel p { color: var(--text-2); max-width: 56ch; }
.cta-panel::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(148, 176, 252, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148, 176, 252, 0.05) 1px, transparent 1px);
  background-size: 42px 42px;
  -webkit-mask-image: radial-gradient(70% 90% at 80% 10%, #000, transparent 70%);
  mask-image: radial-gradient(70% 90% at 80% 10%, #000, transparent 70%);
}

/* ---------------------------------------------------------- 10. HERO INTÉRIEUR */
.page-hero {
  position: relative; padding: calc(var(--nav-h) + clamp(56px, 10vw, 110px)) 0 var(--sp-7);
  overflow: clip;
}
.page-hero .hero-grid { opacity: 0.6; }
.page-hero h1 { font-size: clamp(2.4rem, 5.4vw, 4rem); max-width: 16ch; }
.page-hero .lead { margin-top: var(--sp-5); color: var(--text-2); font-size: 1.06rem; max-width: 60ch; }
.page-hero .halo { opacity: 0.6; }

/* ---------------------------------------------------------- 11. FORMULAIRES */
/* Mise en page contact : infos + formulaire */
.contact-grid { display: grid; grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr); gap: var(--sp-6); }
@media (max-width: 1020px) { .contact-grid { grid-template-columns: 1fr; } }

.form-wrap { max-width: 720px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-5); }
.field { display: grid; gap: 8px; }
.field-full { grid-column: 1 / -1; }
.field label { font-size: 0.85rem; font-weight: 600; color: var(--text-2); letter-spacing: 0.02em; }
.field .req { color: var(--accent-2); }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; border-radius: var(--r-s);
  background: rgba(10, 13, 21, 0.85);
  border: 1px solid var(--line-strong);
  color: var(--text); font: inherit; font-size: 0.95rem;
  transition: border-color var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease), background var(--dur-2) var(--ease);
  appearance: none;
}
.field select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%238eaaff' stroke-width='1.6' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right 16px center;
}
.field textarea { min-height: 140px; resize: vertical; }
.field input::placeholder, .field textarea::placeholder { color: var(--text-3); }
.field input:hover, .field select:hover, .field textarea:hover { border-color: rgba(148, 176, 255, 0.35); }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(77, 141, 255, 0.18), inset 0 0 20px rgba(77, 141, 255, 0.04);
  background: rgba(10, 13, 21, 1);
}
.field.is-error input, .field.is-error textarea, .field.is-error select {
  border-color: var(--err);
  box-shadow: 0 0 0 3px rgba(255, 107, 122, 0.12);
}
.field-msg { font-size: 0.8rem; color: var(--err); display: none; }
.field.is-error .field-msg { display: block; }
/* Validation OK : liseré discret, jamais obstruant */
.form-wrap.is-valid .field.is-ok input { border-color: rgba(62, 207, 142, 0.55); }

/* Pièce jointe (CV) */
.field-file input[type="file"] { padding: 10px 12px; font-size: 0.85rem; color: var(--text-2); cursor: pointer; }
.field-file input[type="file"]::file-selector-button {
  margin-right: 12px; padding: 8px 16px; border: 0; border-radius: 999px;
  background: var(--accent-soft); color: var(--accent-2);
  font: inherit; font-weight: 600; cursor: pointer;
  transition: background var(--dur-2) var(--ease), transform var(--dur-1) var(--ease);
}
.field-file input[type="file"]::file-selector-button:hover,
.field-file input[type="file"]:focus-visible::file-selector-button { background: rgba(77, 141, 255, 0.28); }
.field-file input[type="file"]::file-selector-button:active { transform: scale(0.96); }
.file-chip {
  display: none; align-items: center; gap: 10px;
  padding: 9px 14px; border-radius: var(--r-s);
  border: 1px solid rgba(62, 207, 142, 0.4);
  background: rgba(62, 207, 142, 0.07);
  font-size: 0.85rem; color: var(--text);
}
.field.has-file .file-chip { display: flex; }
.file-name { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 320px; font-weight: 500; }
.file-size { color: var(--text-3); font-size: 0.78rem; flex: none; }
.file-remove {
  margin-left: auto; flex: none; padding: 4px 12px; border-radius: 8px;
  color: var(--err); font-size: 0.8rem; font-weight: 600;
  transition: background var(--dur-2) var(--ease);
}
.file-remove:hover, .file-remove:focus-visible { background: rgba(255, 107, 122, 0.14); }
.field-file .field-msg { margin-top: -6px; }

/* Bouton d'envoi : état chargement */
.btn-send[disabled] { pointer-events: none; opacity: 0.85; }
.btn-send .spinner {
  width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid rgba(4, 18, 42, 0.3); border-top-color: #04102a;
  opacity: 0; width: 0; margin-left: 0;
  transition: opacity var(--dur-2) var(--ease), width var(--dur-2) var(--ease), margin var(--dur-2) var(--ease);
}
.btn-send.is-busy { pointer-events: none; }
.btn-send.is-busy .spinner { opacity: 1; width: 16px; margin-left: 4px; animation: spin 0.8s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Retour après soumission */
.form-status {
  display: none;
  margin-top: var(--sp-5);
  padding: 18px 20px; border-radius: var(--r-m);
  border: 1px solid rgba(62, 207, 142, 0.35);
  background: rgba(62, 207, 142, 0.07);
  color: var(--text); font-size: 0.95rem;
  align-items: center; gap: 14px;
}
.form-wrap.is-sent .form-status { display: flex; animation: fade-rise 0.6s var(--ease) both; }
.form-wrap.is-fail .form-status { display: flex; border-color: rgba(255, 107, 122, 0.4); background: rgba(255, 107, 122, 0.07); }
.form-status .check {
  flex: none; width: 30px; height: 30px; border-radius: 50%;
  display: grid; place-items: center;
  background: rgba(62, 207, 142, 0.15); color: var(--ok);
}
.form-status.is-fail .check { display: none; }
.form-wrap.is-fail .form-status .check { display: none; }
@keyframes fade-rise { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }

/* Honeypot : jamais visible */
.inp-hp { position: absolute !important; left: -9999px !important; opacity: 0; }

/* -------------------------------------------------------------- 12. FOOTER */
.site-footer { position: relative; margin-top: var(--sp-8); border-top: 1px solid var(--line); background: var(--bg-2); overflow: hidden; }
.footer-cta {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between;
  gap: var(--sp-5); padding: var(--sp-7) 0;
}
.footer-cta h2 { font-size: clamp(1.7rem, 3.2vw, 2.5rem); }
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--sp-6);
  padding: var(--sp-6) 0; border-top: 1px solid var(--line);
  color: var(--text-2); font-size: 0.92rem;
}
.footer-grid h3 { color: var(--text); font-size: 0.8rem; letter-spacing: 0.2em; text-transform: uppercase; margin-bottom: 14px; }
.footer-grid ul { display: grid; gap: 9px; }
.footer-grid a { color: var(--text-2); transition: color var(--dur-2) var(--ease); }
.footer-grid a:hover { color: var(--accent-2); }
.footer-bottom {
  display: flex; flex-wrap: wrap; gap: var(--sp-4); justify-content: space-between;
  padding: var(--sp-5) 0; border-top: 1px solid var(--line);
  color: var(--text-3); font-size: 0.8rem;
}
.footer-word {
  display: block; font-family: "Space Grotesk", sans-serif;
  font-size: clamp(3.4rem, 12vw, 9.5rem); font-weight: 700; letter-spacing: 0.02em; line-height: 0.9;
  background: linear-gradient(180deg, rgba(148, 176, 252, 0.14), transparent 85%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  user-select: none; pointer-events: none;
}

/* 404 */
.nf-code { font-size: clamp(6rem, 22vw, 15rem); font-weight: 700; line-height: 1; }

/* ------------------------------------------------- 13. RESPONSIVE & A11Y */
@media (max-width: 1020px) {
  .header-cta { display: none; }
  .nav a { padding: 10px 10px; }
  .hero-in { grid-template-columns: 1fr; }
  /* Visuel hero réactivé en mobile : constellation + cartes, cadrage plus bas.
     width défini (pas seulement max-width) : en grille, les marges auto avec
     width:auto collapseraient l'item sur un contenu 100 % absolutisé. */
  .hero-visual {
    display: block;
    width: min(100%, 460px);
    max-width: 460px;
    height: clamp(300px, 82vw, 420px);
    margin: var(--sp-6) auto 0;
  }
  .float-card { padding: 14px 16px; }
  .fc-code { font-size: 0.72rem; line-height: 1.8; }
  .hero { min-height: auto; padding-bottom: var(--sp-8); }
  .x-detail { grid-template-columns: 1fr; gap: var(--sp-5); }
  .x-detail:nth-child(even) .x-detail-visual { order: 0; }
  .svc-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  :root { --nav-h: 66px; }
  .nav, .header-cta { display: none; }
  .site-header.is-scrolled { height: var(--nav-h); }
  .nav-toggle { display: block; }
  /* Panneau mobile plein écran : entrée/sortie fluides */
  .nav {
    position: fixed; inset: 0; z-index: 105;
    flex-direction: column; justify-content: center; align-items: center; gap: var(--sp-3);
    background: rgba(5, 6, 11, 0.96);
    -webkit-backdrop-filter: blur(20px);
    backdrop-filter: blur(20px);
    display: flex;
    visibility: hidden;
    clip-path: circle(0% at calc(100% - 42px) 40px);
    transition: clip-path 0.65s var(--ease), visibility 0s 0.65s;
  }
  html.menu-open .nav {
    visibility: visible;
    clip-path: circle(150% at calc(100% - 42px) 40px);
    transition: clip-path 0.75s var(--ease), visibility 0s;
  }
  .nav a {
    font-family: "Space Grotesk", sans-serif;
    font-size: clamp(1.6rem, 7vw, 2.2rem); font-weight: 600; color: var(--text-2);
    opacity: 0; transform: translateY(16px);
    transition: opacity 0.5s var(--ease), transform 0.5s var(--ease), color var(--dur-2) var(--ease);
    transition-delay: 0s;
  }
  html.menu-open .nav a .nav-dash { display: none; }
  /* Panneau ouvert : switch de langue et burger passent au-dessus du rideau */
  html.menu-open .nav-meta {
    position: fixed; inset: 11px 14px auto auto; z-index: 106;
    justify-content: flex-end;
  }
  html.menu-open .nav-meta { gap: var(--sp-3); }
  html.menu-open .nav a {
    opacity: 1; transform: none;
    transition-delay: calc(0.18s + var(--mi, 0) * 0.055s);
  }
  html.menu-open .nav a.is-active, html.menu-open .nav a:hover { color: var(--text); }
  html.menu-open body { overflow: hidden; }
  html.menu-open .lang-switch { color: var(--text); border-color: var(--line-strong); }

  .form-grid { grid-template-columns: 1fr; }
  .hero-ctas .btn { width: 100%; justify-content: center; }
  .footer-grid { grid-template-columns: 1fr; gap: var(--sp-5); }
  .xrow-btn { grid-template-columns: 44px 1fr 40px; }
  .xrow-hint { display: none; }
  .xrow-body-pad { margin-left: 44px; max-width: none; }
  .float-card { animation: none; }
  .section { padding: var(--sp-7) 0; }
  /* Réglage fin de rythme : l'interletissage des kickers gêne en colonne étroite */
  .hero-eyebrow, .kicker, .tl-when { letter-spacing: 0.16em; }
}

/* Mode allégé (appareils modestes / économie de données, activé par JS) */
html.low-power .halo,
html.low-power .consellation .node-pulse,
html.low-power .constellation .node-pulse { animation: none !important; }
html.low-power .hero-grid,
html.low-power .halo-3 { display: none; }
html.low-power .float-card { -webkit-backdrop-filter: none; backdrop-filter: none; background: rgba(12, 16, 26, 0.9); }

/* Appareils tactiles : pas d'effets de survol qui collent */
/* Sans JavaScript : navigation mobile toujours accessible (pas de dépliage, affichage direct) */
@media (max-width: 760px) {
  html.no-js .nav { position: static; visibility: visible; clip-path: none; flex-wrap: wrap; justify-content: flex-start; background: transparent; }
  html.no-js .nav a { font-size: 1rem; opacity: 1; transform: none; color: var(--text-2); font-weight: 400; }
  html.no-js .nav-toggle { display: none; }
}

@media (hover: none) {
  .glow-card:hover { transform: none; }
}

/* Réduction des animations : tout devient instantané et statique */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001s !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001s !important;
    scroll-behavior: auto !important;
  }
  html.js [data-reveal],
  html.js .hero-title .line-in,
  html.js .hero-sub, html.js .hero-eyebrow, html.js .hero-ctas, html.js .scroll-cue,
  html.js .draw path, html.js .draw line, html.js .draw circle {
    opacity: 1 !important; transform: none !important; stroke-dashoffset: 0 !important;
  }
  .halo, .float-card { animation: none !important; }
}

/* Impression : lisibilité avant tout */
@media print {
  .site-header, #progress, .hero-bg, .hero-visual, .scroll-cue, .site-footer { display: none !important; }
  body { background: #fff; color: #111; }
  .grad-text { color: inherit; -webkit-text-fill-color: currentColor; }
}