/* ==========================================================================
   ATOMIC REEL — composants
   En-tête, boutons, menu mobile, grain, puis les sections (ajoutées étape par étape).
   ========================================================================== */

/* --- Grain de film (fondu normal : pas de mix-blend-mode plein écran) --- */

.ar-grain {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  opacity: 0.05;
  transform: translateZ(0);   /* calque composité : rastérisé une fois */
}

/* --- Conteneur ---------------------------------------------------------- */

.ar-container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

/* --- En-tête : barre transparente, puis capsule flottante au défilement - */

#header.ar-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 40;
  height: auto;
  padding: 1rem var(--gutter) 0;
  border: 0;
  background: transparent;
  color: var(--c-text);
  font-size: 1rem;
  font-weight: 400;
  pointer-events: none;      /* seule la capsule capte le pointeur */
}

.ar-header__inner {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  max-width: var(--container);
  margin: 0 auto;
  padding: 0.5rem 0.5rem 0.5rem 1rem;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  pointer-events: auto;
  transition: background-color var(--dur-base) var(--ease-out),
              border-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              max-width 600ms var(--ease-out);
}

#header.scrolled .ar-header__inner,
#header.ar-header--solid .ar-header__inner {
  max-width: 1240px;
  border-color: var(--c-line-dark);
  background: rgba(11, 26, 43, 0.94);
  box-shadow: 0 12px 40px -16px rgba(0, 0, 0, 0.6);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

/* « #header » : Quark impose une couleur grise à « #header a », plus spécifique qu'une classe */
#header .ar-logo,
#header .ar-logo:hover {
  color: var(--c-text);
}

.ar-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--c-text);
  text-decoration: none;
}

.ar-logo img {
  width: auto;
  height: 40px;
  transition: transform 600ms var(--ease-spring);
}

.ar-logo:hover img {
  transform: rotate(-12deg) scale(1.06);
}

.ar-logo__name {
  font-family: var(--f-display);
  font-size: 0.9375rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.ar-logo__name strong {
  font-weight: 750;
}

.ar-logo:hover { color: var(--c-text); }

.ar-nav {
  margin-left: auto;
}

.ar-nav ul {
  display: flex;
  gap: 0.125rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ar-nav li { margin: 0; }

#header .ar-nav a {
  display: block;
  padding: 0.55rem 0.75rem;
  border-radius: var(--r-pill);
  color: var(--c-text-soft);
  font-family: var(--f-mono);
  font-size: var(--fs-label);
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color var(--dur-fast) var(--ease-out), background-color var(--dur-fast) var(--ease-out);
}

#header .ar-nav a:hover,
#header .ar-nav a.active {
  background: rgba(255, 244, 216, 0.08);
  color: var(--c-text);
}

/* --- Boutons ------------------------------------------------------------ */

.ar-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  min-height: 48px;
  padding: 0 1.5rem;
  border: 1.5px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--f-display);
  font-size: 0.9375rem;
  font-weight: 650;
  letter-spacing: -0.01em;
  line-height: 1;
  text-decoration: none;
  white-space: nowrap;
  transition: transform var(--dur-base) var(--ease-spring),
              background-color var(--dur-base) var(--ease-out),
              box-shadow var(--dur-base) var(--ease-out),
              color var(--dur-base) var(--ease-out);
}

/* Texte nuit sur orange : 6.21:1 (le crème sur orange échoue, 2.58:1) */
.ar-btn--primary,
.ar-btn--primary:hover,
.ar-light .ar-btn--primary,
.ar-light .ar-btn--primary:hover {
  background: var(--c-orange);
  color: var(--c-night);
}

.ar-btn--primary:hover {
  background: var(--c-sun);
  box-shadow: var(--glow-sun);
  transform: translateY(-2px);
}

.ar-btn--ghost {
  border-color: var(--c-line-dark);
  color: var(--c-text);
}

.ar-btn--ghost:hover {
  border-color: var(--c-text);
  color: var(--c-text);
  transform: translateY(-2px);
}

.ar-light .ar-btn--ghost {
  border-color: var(--c-line-light);
  color: var(--c-ink);
}

.ar-light .ar-btn--ghost:hover {
  border-color: var(--c-ink);
  color: var(--c-ink);
}

.ar-btn svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.75;
}

#header .ar-header__cta,
#header .ar-header__cta:hover {
  color: var(--c-night);       /* sinon « #header a » de Quark : gris sur orange */
}

.ar-header__cta {
  min-height: 42px;
  padding: 0 1.15rem;
  font-size: 0.875rem;
}

/* --- Menu mobile -------------------------------------------------------- */

.ar-burger {
  display: none;
  position: relative;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 1px solid var(--c-line-dark);
  border-radius: 50%;
  background: transparent;
  -webkit-appearance: none;
  appearance: none;
}

.ar-burger span {
  position: absolute;
  left: 13px;
  right: 13px;
  height: 1.5px;
  background: var(--c-text);
  transition: transform var(--dur-base) var(--ease-out), top var(--dur-base) var(--ease-out);
}

.ar-burger span:nth-child(1) { top: 18px; }
.ar-burger span:nth-child(2) { top: 25px; }

.ar-burger.active span:nth-child(1) { top: 21.5px; transform: rotate(45deg); }
.ar-burger.active span:nth-child(2) { top: 21.5px; transform: rotate(-45deg); }

.ar-overlay {
  position: fixed;
  inset: 0;
  z-index: 39;               /* sous l'en-tête : le logo et le bouton restent visibles */
  padding: 7rem var(--gutter) 2rem;
  background: var(--c-night);
  opacity: 0;
  visibility: hidden;
  transition: opacity 350ms var(--ease-out), visibility 350ms;
}

.ar-overlay.open {
  opacity: 1;
  visibility: visible;
}

.ar-overlay ul {
  counter-reset: ar-nav;
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--c-line-dark);
}

.ar-overlay li {
  counter-increment: ar-nav;
  margin: 0;
  border-bottom: 1px solid var(--c-line-dark);
}

.ar-overlay a {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1.1rem 0;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: clamp(1.5rem, 7vw, 2.25rem);
  font-weight: 750;
  letter-spacing: var(--ls-display);
  line-height: 1;
  text-decoration: none;
}

.ar-overlay a::before {
  content: "SC." counter(ar-nav, decimal-leading-zero);
  color: var(--c-sun);
  font-family: var(--f-mono);
  font-size: var(--fs-label);
  font-weight: 400;
  letter-spacing: var(--ls-label);
}

/* Entre tablette et grand écran, le nom cède la place au menu */
@media (min-width: 1024px) and (max-width: 1279px) {
  .ar-logo__name { display: none; }
}

@media (max-width: 1023px) {
  .ar-nav { display: none; }
  .ar-burger { display: block; }
  .ar-header__cta { margin-left: auto; }
}

@media (max-width: 479px) {
  .ar-header__cta { display: none; }
  .ar-burger { margin-left: auto; }
  .ar-logo__name { font-size: 0.875rem; }
}

/* --- Étoiles et orbites (DESIGN.md §4) ---------------------------------- */

.ar-star {
  display: inline-block;
  width: 0.7em;
  height: 0.7em;
  flex: none;
  color: var(--c-star);
}

.ar-orbit {
  position: absolute;
  border: 1px solid rgba(169, 214, 222, 0.28);
  border-radius: 50%;
  pointer-events: none;
}

/* --- Hero --------------------------------------------------------------- */

.ar-hero {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  min-height: 100svh;
  overflow: hidden;
  isolation: isolate;
  background: radial-gradient(120% 80% at 50% 110%, #1D3A55 0%, var(--c-night) 60%);
}

.ar-hero__sky {
  position: absolute;
  inset: 0;
  z-index: -1;
}

/* Rayons de soleil rétro : dégradé conique, masqué en halo, rotation très lente */
.ar-hero__sunburst {
  position: absolute;
  left: 50%;
  top: 36%;
  width: 180vmax;
  height: 180vmax;
  margin: -90vmax 0 0 -90vmax;
  background: repeating-conic-gradient(from 0deg, rgba(240, 144, 48, 0.07) 0deg 6deg, transparent 6deg 15deg);
  -webkit-mask-image: radial-gradient(circle, #000 0%, rgba(0, 0, 0, 0.6) 22%, transparent 48%);
  mask-image: radial-gradient(circle, #000 0%, rgba(0, 0, 0, 0.6) 22%, transparent 48%);
  animation: ar-spin 160s linear infinite;
  will-change: transform;
}

.ar-hero__stars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* Halo orangé de « coucher de soleil » en bas d'écran */
.ar-hero__horizon {
  position: absolute;
  left: -10%;
  right: -10%;
  bottom: -38vh;
  height: 70vh;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(240, 120, 48, 0.42), rgba(240, 120, 48, 0.08) 60%, transparent);
}

.ar-hero__inner {
  position: relative;
  display: flex;
  flex: 1;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding-top: clamp(5.5rem, 11vh, 8rem);
  padding-bottom: var(--sp-4);
  text-align: center;
}

.ar-hero__emblem {
  position: relative;
  width: min(600px, 88vw);
  margin-bottom: var(--sp-3);
}

.ar-hero__logo {
  position: relative;
  display: block;
  width: 100%;
  height: auto;
  filter: drop-shadow(0 18px 40px rgba(0, 0, 0, 0.45));
}

/* Orbites autour de l'atome du logo (placé dans le premier quart de l'image) */
.ar-hero__emblem .ar-orbit--1 {
  left: -6%;
  top: -34%;
  width: 52%;
  height: 168%;
  transform: rotate(-58deg);
  animation: ar-orbit-a 28s linear infinite;
}

.ar-hero__emblem .ar-orbit--2 {
  left: -14%;
  top: 4%;
  width: 66%;
  height: 92%;
  border-color: rgba(240, 144, 48, 0.22);
  transform: rotate(14deg);
  animation: ar-orbit-b 40s linear infinite reverse;
}

@keyframes ar-orbit-a { to { transform: rotate(302deg); } }
@keyframes ar-orbit-b { to { transform: rotate(374deg); } }

.ar-hero__spark {
  position: absolute;
  width: clamp(12px, 1.6vw, 22px);
  height: clamp(12px, 1.6vw, 22px);
  animation: ar-twinkle 3.2s ease-in-out infinite;
}

.ar-hero__spark--1 { right: 4%;  top: -10%; }
.ar-hero__spark--2 { left: 30%;  bottom: -8%; width: 12px; height: 12px; animation-delay: -1.1s; color: var(--c-atom); }
.ar-hero__spark--3 { right: 22%; bottom: -14%; width: 14px; height: 14px; animation-delay: -2.2s; }

.ar-hero__kicker {
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: var(--sp-2);
  color: var(--c-text-soft);
}

/* Pastille « REC » qui clignote, comme sur une caméra */
.ar-rec {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #FF4D3D;
  box-shadow: 0 0 10px rgba(255, 77, 61, 0.7);
  animation: ar-rec 1.6s steps(1, end) infinite;
}

@keyframes ar-rec { 50% { opacity: 0.2; } }

.ar-hero__tc {
  color: var(--c-sun);
  font-variant-numeric: tabular-nums;
}

.ar-hero__title {
  max-width: 17ch;
  margin: 0 auto var(--sp-3);
  font-size: clamp(2.1rem, 3.6vw + 0.6rem, 4.25rem);
  font-weight: 800;
  line-height: 1.02;
}

/* « avec impact » : le dégradé signature de l'écran */
.ar-hero__title em {
  font-style: normal;
  background: var(--grad-sunset);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ar-hero__lead {
  max-width: 62ch;
  margin: 0 auto;
  color: var(--c-text-soft);
  font-size: clamp(1.0625rem, 0.5vw + 0.95rem, 1.25rem);
  line-height: 1.55;
}

.ar-hero__lead p {
  margin: 0;
  max-width: none;
}

.ar-hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-2);
  margin-top: var(--sp-4);
}

.ar-hero__badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--sp-1) var(--sp-4);
  margin: var(--sp-4) 0 0;
  padding: 0;
  list-style: none;
}

.ar-hero__badges li {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  margin: 0;
  color: var(--c-text-soft);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

/* --- Bandeau défilant des métiers (effet 4) ----------------------------- */

.ar-marquee {
  position: relative;
  overflow: hidden;
  padding: 1.15rem 0;
  border-block: 1px solid var(--c-line-dark);
  background: rgba(11, 26, 43, 0.55);
}

.ar-marquee__track {
  display: flex;
  width: max-content;
  animation: ar-marquee 38s linear infinite;
}

.ar-marquee:hover .ar-marquee__track {
  animation-play-state: paused;
}

.ar-marquee__list {
  display: flex;
  flex: none;
  margin: 0;
  padding: 0;
  list-style: none;
}

.ar-marquee__list li {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
  max-width: none;
  margin: 0;
  padding-right: 1.5rem;
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: clamp(1.25rem, 2.2vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.ar-marquee__list li:nth-child(even) {
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 244, 216, 0.55);
}

.ar-marquee__list .ar-star {
  width: 0.6em;
  height: 0.6em;
  color: var(--c-orange);
  -webkit-text-stroke: 0;
}

@keyframes ar-marquee {
  to { transform: translateX(-50%); }
}

/* --- Amorce de film 3-2-1 (effet 1) ------------------------------------- */

.ar-leader {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  background: #0E1B27;
  cursor: pointer;
}

.ar-leader[hidden] { display: none; }

.ar-leader__frame {
  position: relative;
  width: min(62vmin, 520px);
  aspect-ratio: 1;
}

.ar-leader__ring {
  position: absolute;
  inset: 0;
  border: 2px solid rgba(255, 244, 216, 0.85);
  border-radius: 50%;
}

.ar-leader__ring--inner {
  inset: 9%;
  border-width: 1px;
  border-color: rgba(255, 244, 216, 0.5);
}

.ar-leader__cross::before,
.ar-leader__cross::after {
  content: "";
  position: absolute;
  background: rgba(255, 244, 216, 0.4);
}

.ar-leader__cross::before { left: -20%; right: -20%; top: 50%; height: 1px; }
.ar-leader__cross::after  { top: -20%; bottom: -20%; left: 50%; width: 1px; }

/* Balayage de l'aiguille : un secteur conique dont l'angle est piloté par --sweep */
.ar-leader__sweep {
  --sweep: 0deg;
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(rgba(240, 144, 48, 0.55) var(--sweep), rgba(255, 244, 216, 0.06) 0);
}

.ar-leader__num {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  color: var(--c-cream);
  font-family: var(--f-display);
  font-size: min(34vmin, 280px);
  font-weight: 800;
  line-height: 1;
}

.ar-leader__skip {
  position: absolute;
  bottom: 2rem;
  left: 0;
  right: 0;
  justify-content: center;
  color: var(--c-text-soft);
}

@media (max-width: 767px) {
  .ar-hero__inner { padding-top: 7rem; }
  .ar-hero__emblem { margin-bottom: var(--sp-3); }
  .ar-hero__badges { flex-direction: column; align-items: center; }
  .ar-hero__actions .ar-btn { width: 100%; }
}

/* --- Sections : rythme vertical commun ---------------------------------- */

/* Les ornements (orbites, halos) peuvent déborder : on rogne à l'horizontale.
   « clip » et non « hidden » : ne crée pas de conteneur de défilement, donc sticky fonctionne. */
.ar-module {
  overflow-x: clip;
}

.ar-section {
  position: relative;
  padding: clamp(5rem, 11vw, 9rem) 0;
}

/* Trame de demi-tons des sections crème (DESIGN.md §4), fondue vers les bords */
.ar-light .ar-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(24, 48, 72, 0.09) 1.1px, transparent 1.6px);
  background-size: 14px 14px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 85% 30%, #000, transparent 70%);
  mask-image: radial-gradient(ellipse 70% 60% at 85% 30%, #000, transparent 70%);
  pointer-events: none;
}

/* --- Présentation ------------------------------------------------------- */

.ar-about__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(3rem, 7vw, 7rem);
  align-items: start;
}

.ar-about__title {
  margin: var(--sp-2) 0 var(--sp-4);
  font-size: var(--fs-h2);
}

.ar-about__manifesto {
  max-width: 30ch;
  margin: 0 0 var(--sp-6);
  color: var(--c-ink);
  font-family: var(--f-display);
  font-size: clamp(1.375rem, 1.6vw + 0.9rem, 2.25rem);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.3;
}

.ar-about__body p {
  margin: 0 0 var(--sp-3);
  color: var(--c-ink-soft);
}

.ar-about__signature {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  margin: var(--sp-2) 0 0;
  padding: 0.85rem 1.4rem;
  border-radius: var(--r-pill);
  background: var(--c-navy);
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: 1rem;
  font-weight: 650;
}

.ar-about__signature .ar-star {
  width: 1em;
  height: 1em;
  color: var(--c-star);
}

/* Écussons de certification */
.ar-about__certs {
  position: sticky;
  top: 7rem;
}

.ar-about__certs-title {
  margin: 0 0 0.5rem;
}

.ar-about__certs-intro {
  margin: 0 0 var(--sp-4);
  color: var(--c-ink-soft);
}

.ar-certs {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--sp-3);
  margin: 0;
  padding: 0;
  list-style: none;
}

.ar-certs__item {
  max-width: none;
  margin: 0;
}

.ar-cert {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  aspect-ratio: 1;
  padding: 1.25rem;
  border-radius: 50%;
  background:
    radial-gradient(circle at 35% 30%, rgba(255, 255, 255, 0.08), transparent 55%),
    var(--c-navy);
  box-shadow: inset 0 0 0 6px var(--c-navy), inset 0 0 0 8px var(--c-orange), var(--glow-soft);
  color: var(--c-text);
  text-align: center;
  text-decoration: none;
  transition: transform 500ms var(--ease-spring), box-shadow var(--dur-base) var(--ease-out);
}

/* Couture pointillée façon écusson brodé */
.ar-cert::after {
  content: "";
  position: absolute;
  inset: 14px;
  border: 1.5px dashed rgba(255, 244, 216, 0.35);
  border-radius: 50%;
  pointer-events: none;
}

.ar-light .ar-cert,
.ar-light .ar-cert:hover {
  color: var(--c-text);
}

.ar-cert:hover {
  transform: rotate(-4deg) scale(1.04);
  box-shadow: inset 0 0 0 6px var(--c-navy), inset 0 0 0 8px var(--c-star), 0 22px 48px -14px rgba(240, 120, 48, 0.55);
}

.ar-cert__orbit {
  position: absolute;
  inset: -10px -22px;
  border: 1px solid rgba(31, 95, 99, 0.35);
  border-radius: 50%;
  transform: rotate(-24deg);
  animation: ar-spin-tilted 18s linear infinite;
  pointer-events: none;
}

@keyframes ar-spin-tilted {
  from { transform: rotate(-24deg); }
  to   { transform: rotate(336deg); }
}

.ar-cert__star {
  width: 18px;
  height: 18px;
  margin-bottom: 0.4rem;
}

.ar-cert__module {
  color: var(--c-atom);
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.ar-cert__label {
  margin: 0.35rem 0;
  font-family: var(--f-display);
  font-size: clamp(0.9375rem, 0.6vw + 0.8rem, 1.125rem);
  font-weight: 700;
  line-height: 1.15;
}

@media (max-width: 1023px) {
  .ar-about__grid { grid-template-columns: minmax(0, 1fr); }
  .ar-about__certs { position: static; }
}

@media (max-width: 479px) {
  .ar-certs { gap: var(--sp-2); }
  .ar-cert { padding: 0.85rem; }
  .ar-cert::after { inset: 10px; }
}

/* --- Services : cartes empilées (effet 7) ------------------------------- */

.ar-services__head {
  max-width: 46rem;
  margin-bottom: var(--sp-8);
}

.ar-services__title {
  margin: var(--sp-2) 0 var(--sp-3);
  font-size: var(--fs-h2);
}

.ar-services__intro {
  margin: 0;
  color: var(--c-text-soft);
  font-size: var(--fs-lead);
  line-height: 1.5;
}

.ar-stack {
  margin: 0;
  padding: 0;
  list-style: none;
}

/* Chaque carte colle un peu plus bas que la précédente : on voit le haut de la pile */
.ar-stack__item {
  position: sticky;
  top: calc(6.5rem + var(--i) * 1.25rem);
  max-width: none;
  margin: 0 0 var(--sp-6);
}

.ar-stack__item:last-child { margin-bottom: 0; }

.ar-card {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
  gap: clamp(2rem, 5vw, 5rem);
  overflow: hidden;
  padding: clamp(1.75rem, 4vw, 3.5rem);
  border: 1px solid var(--c-line-dark);
  border-radius: 28px;
  background:
    radial-gradient(90% 120% at 100% 0%, rgba(240, 120, 48, 0.14), transparent 55%),
    linear-gradient(160deg, #1F3A55, #12263B 70%);
  box-shadow: 0 -18px 50px -24px rgba(0, 0, 0, 0.7);
  transform-origin: 50% 0;
}

.ar-stack__item:nth-child(even) .ar-card {
  background:
    radial-gradient(90% 120% at 0% 0%, rgba(169, 214, 222, 0.12), transparent 55%),
    linear-gradient(160deg, #0F3B4A, #0B2533 70%);
}

/* Filet orange en tête de carte */
.ar-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: clamp(1.75rem, 4vw, 3.5rem);
  width: 72px;
  height: 3px;
  border-radius: 0 0 3px 3px;
  background: var(--c-orange);
}

/* Grand numéro en creux, en fond de carte */
.ar-card__bignum {
  position: absolute;
  right: -0.06em;
  bottom: -0.32em;
  color: transparent;
  font-family: var(--f-display);
  font-size: clamp(9rem, 20vw, 18rem);
  font-weight: 800;
  line-height: 1;
  -webkit-text-stroke: 1px rgba(255, 244, 216, 0.08);
  pointer-events: none;
}

.ar-card__main,
.ar-card__side {
  position: relative;
}

.ar-card__icon {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin: var(--sp-3) 0 var(--sp-3);
  border: 1px solid rgba(240, 144, 48, 0.45);
  border-radius: 50%;
  background: rgba(240, 120, 48, 0.1);
  color: var(--c-sun);
}

.ar-card__icon svg {
  width: 28px;
  height: 28px;
  stroke-width: 1.5;
}

.ar-card__title {
  margin: 0 0 var(--sp-2);
  font-size: clamp(1.5rem, 1.8vw + 0.9rem, 2.5rem);
  font-weight: 750;
  line-height: 1.05;
}

.ar-card__text {
  margin: 0;
  color: var(--c-text-soft);
}

.ar-card__side {
  align-self: end;
}

.ar-card__list {
  margin: var(--sp-1) 0 var(--sp-4);
  padding: 0;
  list-style: none;
}

.ar-card__list li {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin: 0;
  padding: 0.65rem 0;
  border-bottom: 1px solid var(--c-line-dark);
}

.ar-card__list .ar-star {
  position: relative;
  top: 0.05em;
  color: var(--c-orange);
}

.ar-card__tools {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: var(--sp-1) 0 0;
  padding: 0;
  list-style: none;
}

.ar-card__tools li {
  margin: 0;
  padding: 0.35rem 0.85rem;
  border: 1px solid var(--c-line-dark);
  border-radius: var(--r-pill);
  color: var(--c-text);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}

/* Voile de la carte recouverte : la carte reste opaque (sinon celle du dessous transparaît) */
.ar-card__shade {
  position: absolute;
  inset: 0;
  z-index: 2;
  border-radius: inherit;
  background: var(--c-night);
  opacity: 0;
  pointer-events: none;
}

/* Mobile : pas d'empilement — une carte plus haute que l'écran serait recouverte avant
   d'avoir été lue en entier */
@media (max-width: 899px) {
  .ar-card { grid-template-columns: minmax(0, 1fr); }
  .ar-stack__item { position: static; margin-bottom: var(--sp-3); }
}

/* --- Étalonnage : comparateur avant / après (effet 8) ------------------- */

.ar-grading__head {
  display: grid;
  /* Titre large, intro étroite et rapprochée : « L'étalonnage » doit tenir sur sa ligne,
     sinon le masque de l'animation ligne à ligne le coupe */
  grid-template-columns: minmax(0, 8fr) minmax(0, 4fr);
  gap: var(--sp-3) clamp(1.5rem, 2.5vw, 2.5rem);
  align-items: end;
  margin-bottom: var(--sp-6);
}

.ar-grading__title {
  margin: var(--sp-2) 0 0;
  font-size: var(--fs-h2);
}

.ar-grading__intro {
  margin: 0;
  color: var(--c-ink-soft);
  font-size: 1.125rem;
}

.ar-compare {
  --pos: 50%;
  margin: 0;
}

/* Bande de film 35 mm : perforations en haut et en bas */
.ar-compare__film {
  position: relative;
  padding: 26px 18px;
  border-radius: var(--r-md);
  background: var(--c-night);
  box-shadow: var(--glow-soft);
}

.ar-compare__film::before,
.ar-compare__film::after {
  content: "";
  position: absolute;
  left: 18px;
  right: 18px;
  height: 10px;
  background: repeating-linear-gradient(90deg, rgba(255, 244, 216, 0.8) 0 14px, transparent 14px 30px);
}

.ar-compare__film::before { top: 8px; }
.ar-compare__film::after  { bottom: 8px; }

.ar-compare__stage {
  position: relative;
  overflow: hidden;
  border-radius: 6px;
  aspect-ratio: 1280 / 714;
  background: #222;
  touch-action: pan-y;        /* le glissement horizontal pilote le curseur, le vertical fait défiler */
}

.ar-compare__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ar-compare__img--after {
  clip-path: inset(0 0 0 var(--pos));
}

.ar-compare__tag {
  position: absolute;
  top: 1rem;
  padding: 0.4rem 0.8rem;
  border-radius: var(--r-pill);
  background: rgba(11, 26, 43, 0.72);
  color: var(--c-text);
  font-family: var(--f-mono);
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  pointer-events: none;
}

.ar-compare__tag--before { left: 1rem; }
.ar-compare__tag--after  { right: 1rem; background: var(--c-orange); color: var(--c-night); }

.ar-compare__handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: var(--pos);
  width: 2px;
  margin-left: -1px;
  background: var(--c-cream);
  box-shadow: 0 0 12px rgba(0, 0, 0, 0.5);
  pointer-events: none;
}

.ar-compare__knob {
  position: absolute;
  top: 50%;
  left: 50%;
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 2px solid var(--c-cream);
  border-radius: 50%;
  background: var(--c-orange);
  color: var(--c-night);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.45);
  transform: translate(-50%, -50%);
  transition: transform var(--dur-base) var(--ease-spring);
}

.ar-compare__knob svg {
  width: 24px;
  height: 24px;
  stroke-width: 2;
}

/* Le curseur natif couvre toute l'image, invisible : il reçoit souris, doigt et clavier */
.ar-compare__range {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  margin: 0;
  opacity: 0;
  cursor: ew-resize;
}

.ar-compare__range:hover ~ .ar-compare__handle .ar-compare__knob,
.ar-compare__range:active ~ .ar-compare__handle .ar-compare__knob {
  transform: translate(-50%, -50%) scale(1.1);
}

/* Le focus clavier du curseur invisible se voit sur la poignée */
.ar-compare__stage:has(.ar-compare__range:focus-visible) .ar-compare__knob {
  outline: 3px solid var(--c-star);
  outline-offset: 4px;
}

.ar-compare__caption {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-1) var(--sp-3);
  margin-top: var(--sp-2);
}

/* Trois étapes */
.ar-steps {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-4);
  margin: var(--sp-8) 0 0;
  padding: 0;
  list-style: none;
}

.ar-steps__item {
  max-width: none;
  margin: 0;
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-line-light);
}

.ar-steps__num {
  color: var(--c-teal);
  font-family: var(--f-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--ls-label);
}

.ar-steps__title {
  margin: var(--sp-1) 0;
  font-size: 1.25rem;
}

.ar-steps__item p {
  margin: 0;
  color: var(--c-ink-soft);
}

@media (max-width: 899px) {
  .ar-grading__head { grid-template-columns: minmax(0, 1fr); }
  .ar-steps { grid-template-columns: minmax(0, 1fr); gap: var(--sp-3); }
  .ar-compare__film { padding: 20px 8px; }
  .ar-compare__film::before, .ar-compare__film::after { left: 8px; right: 8px; height: 8px; }
  .ar-compare__knob { width: 44px; height: 44px; }
}

/* --- Méthode : timeline de montage (effet 9) ---------------------------- */

.ar-process__head {
  margin-bottom: var(--sp-6);
}

.ar-process__title {
  max-width: 18ch;
  margin: var(--sp-2) 0 var(--sp-3);
  font-size: var(--fs-h2);
}

.ar-process__intro {
  margin: 0;
  color: var(--c-text-soft);
  font-size: 1.125rem;
}

/* Disposition par défaut (mobile, sans JS, mouvement réduit) : liste verticale reliée par un fil */
.ar-timeline {
  position: relative;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.ar-timeline__ruler,
.ar-timeline__playhead {
  display: none;
}

.ar-timeline__track {
  position: relative;
  display: grid;
  gap: var(--sp-3);
  margin: 0;
  padding: 0 0 0 1.75rem;
  list-style: none;
}

.ar-timeline__track::before {
  content: "";
  position: absolute;
  top: 0.5rem;
  bottom: 0.5rem;
  left: 0.45rem;
  width: 2px;
  background: linear-gradient(var(--c-orange), rgba(240, 120, 48, 0.1));
}

.ar-clip {
  --clip: var(--c-teal);
  position: relative;
  display: flex;
  flex-direction: column;
  max-width: none;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--c-line-dark);
  border-radius: 14px;
  background: #13263A;
  transition: border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
}

.ar-clip::before {
  content: "";
  position: absolute;
  top: 1.1rem;
  left: -1.6rem;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--c-orange);
}

.ar-clip:nth-child(3) { --clip: #2E6F8E; }
.ar-clip:nth-child(4) { --clip: var(--c-orange); }
.ar-clip:nth-child(5) { --clip: #C8962E; }

.ar-clip__bar {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.5rem 0.9rem;
  background: var(--clip);
  color: var(--c-cream);
  font-family: var(--f-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.ar-clip:nth-child(4) .ar-clip__bar,
.ar-clip:nth-child(5) .ar-clip__bar {
  color: var(--c-night);
}

.ar-clip__body {
  padding: 1.25rem 1.25rem 1rem;
}

.ar-clip__num {
  color: var(--c-sun);
  font-family: var(--f-mono);
  font-size: var(--fs-label);
  letter-spacing: var(--ls-label);
}

.ar-clip__title {
  margin: 0.4rem 0 0.6rem;
  font-size: 1.375rem;
}

.ar-clip__text {
  margin: 0;
  color: var(--c-text-soft);
  font-size: 0.9875rem;
}

/* Forme d'onde audio décorative */
.ar-clip__wave {
  height: 34px;
  margin-top: auto;
  background:
    repeating-linear-gradient(90deg, rgba(169, 214, 222, 0.38) 0 2px, transparent 2px 5px);
  -webkit-mask: radial-gradient(60% 100% at 50% 50%, #000 30%, rgba(0, 0, 0, 0.35) 70%);
  mask: radial-gradient(60% 100% at 50% 50%, #000 30%, rgba(0, 0, 0, 0.35) 70%);
  opacity: 0.6;
  border-top: 1px solid var(--c-line-dark);
}

/* Desktop animé : vraie timeline horizontale épinglée */
@media (min-width: 900px) {
  .ar-motion .ar-timeline {
    --ph: 34vw;                    /* position de la tête de lecture */
    max-width: none;
    padding: 2.5rem 0 1rem;
    overflow: hidden;
    border-block: 1px solid var(--c-line-dark);
    background: #0E2033;
  }

  .ar-motion .ar-timeline__ruler {
    display: block;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1.75rem;
    border-bottom: 1px solid var(--c-line-dark);
    background:
      repeating-linear-gradient(90deg, rgba(255, 244, 216, 0.35) 0 1px, transparent 1px 120px),
      repeating-linear-gradient(90deg, rgba(255, 244, 216, 0.16) 0 1px, transparent 1px 24px);
    background-size: 100% 100%, 100% 40%;
    background-repeat: no-repeat;
    background-position: 0 0, 0 100%;
  }

  /* La piste (déplacée par transform) forme son propre empilement : c'est elle qui doit
     passer devant la tête de lecture, qui reste visible dans la règle et entre les clips */
  .ar-motion .ar-timeline__track {
    position: relative;
    z-index: 1;
    display: flex;
    gap: 14px;
    width: max-content;
    padding: 0 40vw 0 var(--ph);
  }

  .ar-motion .ar-timeline__track::before,
  .ar-motion .ar-clip::before {
    display: none;
  }

  /* Épinglée, la section doit tenir dans l'écran : espacements resserrés */
  .ar-motion .ar-process {
    padding-top: clamp(6.5rem, 12vh, 8rem);
  }

  .ar-motion .ar-process__head {
    margin-bottom: var(--sp-4);
  }

  .ar-motion .ar-clip {
    width: clamp(320px, 30vw, 440px);
    min-height: 270px;
  }

  .ar-motion .ar-clip.is-active {
    border-color: rgba(240, 144, 48, 0.6);
    box-shadow: 0 0 0 1px rgba(240, 144, 48, 0.35), var(--glow-sun);
    opacity: 1;
    transform: translateY(-6px);
  }

  .ar-motion .ar-timeline__playhead {
    display: block;
    position: absolute;
    top: 0;
    bottom: 0;
    left: var(--ph);
    z-index: 0;
    width: 2px;
    margin-left: -1px;
    background: var(--c-orange);
    box-shadow: 0 0 14px rgba(240, 120, 48, 0.7);
    pointer-events: none;
  }

  /* Tête de lecture en forme de « drapeau », comme dans un logiciel de montage */
  .ar-motion .ar-timeline__playhead::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    width: 14px;
    height: 16px;
    background: var(--c-orange);
    clip-path: polygon(0 0, 100% 0, 100% 60%, 50% 100%, 0 60%);
    transform: translateX(-50%);
  }

  .ar-motion .ar-timeline__tc {
    position: absolute;
    top: 0.2rem;
    left: 12px;
    color: var(--c-sun);
    font-family: var(--f-mono);
    font-size: 0.75rem;
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.06em;
    white-space: nowrap;
  }
}

/* --- Contact (effet 10) ------------------------------------------------- */

.ar-contact {
  overflow: hidden;
}

/* Soleil couchant derrière le grand titre */
.ar-contact__glow {
  position: absolute;
  left: 50%;
  bottom: -55%;
  width: 120vw;
  height: 90%;
  border-radius: 50%;
  background: radial-gradient(closest-side, rgba(240, 120, 48, 0.32), rgba(240, 120, 48, 0.06) 65%, transparent);
  transform: translateX(-50%);
  pointer-events: none;
}

.ar-contact__grid {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--sp-6) clamp(2rem, 6vw, 6rem);
  align-items: center;
}

.ar-contact__title {
  margin: var(--sp-2) 0 var(--sp-4);
  font-size: clamp(2.5rem, 5.5vw + 0.5rem, 6rem);
  font-weight: 800;
}

.ar-contact__title em {
  font-style: normal;
  background: var(--grad-sunset);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.ar-contact__intro {
  max-width: 46ch;
  margin: 0;
  color: var(--c-text-soft);
  font-size: var(--fs-lead);
  line-height: 1.5;
}

.ar-contact__aside {
  margin: var(--sp-2) 0 0;
  color: var(--c-atom);
  font-style: italic;
}

/* Bouton rond, texte en orbite qui tourne */
.ar-contact__cta {
  justify-self: center;
  padding: 1.5rem;
}

.ar-orb {
  position: relative;
  display: grid;
  place-items: center;
  width: clamp(170px, 18vw, 230px);
  aspect-ratio: 1;
  border-radius: 50%;
  color: var(--c-text);
  text-decoration: none;
}

.ar-orb__ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  animation: ar-spin 18s linear infinite;
}

.ar-orb__ring text {
  fill: var(--c-text);
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 2.6px;
}

.ar-orb__core {
  display: grid;
  place-items: center;
  width: 58%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: var(--c-orange);
  color: var(--c-night);
  box-shadow: var(--glow-sun);
  transition: transform 500ms var(--ease-spring), background-color var(--dur-base) var(--ease-out);
}

.ar-orb__core svg {
  width: 34%;
  height: 34%;
  stroke-width: 1.75;
}

.ar-orb:hover .ar-orb__core {
  background: var(--c-sun);
  transform: scale(1.08) rotate(-8deg);
}

.ar-orb:hover .ar-orb__ring {
  animation-duration: 6s;
}

.ar-contact__cards {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--sp-2);
  margin: var(--sp-4) 0 0;
  padding: 0;
  list-style: none;
}

.ar-contact__card {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  max-width: none;
  margin: 0;
  padding: var(--sp-3);
  border: 1px solid var(--c-line-dark);
  border-radius: var(--r-md);
  background: rgba(24, 48, 72, 0.55);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
}

.ar-contact__icon {
  display: inline-flex;
  margin-bottom: 0.35rem;
  color: var(--c-sun);
}

.ar-contact__icon svg {
  width: 22px;
  height: 22px;
  stroke-width: 1.5;
}

.ar-contact__value {
  color: var(--c-text);
  font-family: var(--f-display);
  font-size: clamp(1rem, 0.5vw + 0.9rem, 1.25rem);
  font-weight: 600;
  overflow-wrap: anywhere;
  text-decoration: none;
}

a.ar-contact__value:hover {
  color: var(--c-star);
  text-decoration: underline;
}

@media (max-width: 899px) {
  .ar-contact__grid { grid-template-columns: minmax(0, 1fr); }
  .ar-contact__cards { grid-template-columns: minmax(0, 1fr); }
}

/* --- Pied de page : générique de fin ------------------------------------ */

#footer.ar-footer {
  padding: 0 0 var(--sp-4);
  border-top: 1px solid var(--c-line-dark);
  color: var(--c-text-soft);
  text-align: left;
}

.ar-footer__marquee {
  overflow: hidden;
  padding: var(--sp-4) 0;
  border-bottom: 1px solid var(--c-line-dark);
}

.ar-footer__track {
  display: flex;
  width: max-content;
  animation: ar-marquee 40s linear infinite;
}

.ar-footer__track span {
  display: inline-flex;
  align-items: center;
  gap: 0.35em;
  padding-right: 0.35em;
  color: transparent;
  font-family: var(--f-display);
  font-size: clamp(3rem, 9vw, 8.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1;
  white-space: nowrap;
  -webkit-text-stroke: 1.5px rgba(255, 244, 216, 0.28);
}

.ar-footer__track .ar-star {
  width: 0.4em;
  height: 0.4em;
  color: var(--c-orange);
}

.ar-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--sp-6);
  padding-top: var(--sp-8);
  padding-bottom: var(--sp-6);
}

.ar-footer__tagline {
  max-width: 36ch;
  margin: var(--sp-2) 0 0;
}

.ar-footer ul {
  margin: var(--sp-2) 0 0;
  padding: 0;
  list-style: none;
}

.ar-footer li {
  margin: 0 0 0.25rem;
}

.ar-footer__nav a,
.ar-footer__meta a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 36px;
  color: var(--c-text);
  text-decoration: none;
}

.ar-footer__nav a:hover,
.ar-footer__meta a:hover {
  color: var(--c-star);
}

.ar-footer__top svg {
  width: 16px;
  height: 16px;
  stroke-width: 1.75;
}

.ar-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--sp-1) var(--sp-3);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-line-dark);
  font-size: 0.875rem;
}

.ar-footer__bottom p {
  margin: 0;
}

.ar-footer__bottom .ar-label span {
  color: #FF4D3D;
}

@media (max-width: 767px) {
  .ar-footer__grid { grid-template-columns: minmax(0, 1fr); gap: var(--sp-4); }
}

/* --- Page de texte (mentions légales) ----------------------------------- */

.ar-page {
  padding: calc(6rem + var(--sp-8)) 0 var(--sp-12);
}

.ar-page__inner {
  max-width: 900px;
}

.ar-page__title {
  margin: var(--sp-2) 0 var(--sp-6);
  font-size: var(--fs-h2);
}

.ar-page__content h2,
.ar-page__content h3 {
  margin: var(--sp-6) 0 var(--sp-2);
  font-size: var(--fs-h3);
}

.ar-page__content p,
.ar-page__content li {
  color: var(--c-ink-soft);
}