/* =========================================================
   12Cinqcent — Design system (inspiration MWM : épuré, aéré,
   haut de gamme, mobile-first)
========================================================= */

:root{
  --red: #E30613;
  --red-dark: #B80510;
  --red-light: #FF4B56;
  --violet: #9B72CB;
  --charcoal: #1C1A1B;
  --charcoal-soft: #3A3839;
  --grey-700: #57545a;
  --grey-400: #8c888d;
  --grey-100: #F4F2F3;
  --grey-050: #FAF9F9;
  --white: #FFFFFF;

  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-pill: 999px;

  --shadow-soft: 0 20px 40px -20px rgba(28,26,27,0.18);
  --shadow-card: 0 12px 30px -14px rgba(28,26,27,0.15);
  --shadow-card-hover: 0 34px 60px -24px rgba(28,26,27,0.26);
  --shadow-premium: 0 40px 80px -32px rgba(28,26,27,0.28);
  --shadow-red-lg: 0 22px 44px -14px rgba(227,6,19,0.5);

  --container: 1180px;

  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-display: "Sora", var(--font);

  --ease-premium: cubic-bezier(.22,.75,.28,1);
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }

body{
  margin: 0;
  font-family: var(--font);
  color: var(--charcoal);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

img{ max-width: 100%; display: block; }

::selection{ background: var(--red); color: var(--white); }

:focus-visible{
  outline: 2.5px solid var(--red);
  outline-offset: 3px;
  border-radius: 4px;
}

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.skip-link{
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--red);
  color: var(--white);
  padding: 12px 18px;
  border-radius: var(--radius-pill);
  z-index: 999;
}
.skip-link:focus{ left: 24px; top: 24px; }

.eyebrow{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 12px;
  font-weight: 700;
  font-family: var(--font-display);
  color: var(--red);
  background: rgba(227,6,19,0.08);
  padding: 8px 16px 8px 12px;
  border-radius: var(--radius-pill);
  margin: 0 0 20px;
}
.eyebrow::before{
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--red);
  flex-shrink: 0;
}
.eyebrow.center{ margin-left: auto; margin-right: auto; }
.eyebrow.on-dark{ background: rgba(255,255,255,0.1); }

.accent{ color: var(--red); }

h1, h2, h3{
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.08;
  margin: 0 0 18px;
}

h2{ font-size: clamp(29px, 4.6vw, 44px); }
h3{ font-size: 19px; letter-spacing: -0.01em; }

.lead{
  font-size: 17px;
  line-height: 1.65;
  color: var(--grey-700);
  max-width: 60ch;
}

.center{ text-align: center; margin-left: auto; margin-right: auto; }

/* ---------- Buttons ---------- */
.btn{
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform .22s var(--ease-premium), box-shadow .22s var(--ease-premium), background-color .22s ease, border-color .22s ease, color .22s ease;
  white-space: nowrap;
}
.btn-pill{ border-radius: var(--radius-pill); padding: 15px 30px; }
.btn-primary{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--red);
  color: var(--white);
  box-shadow: 0 14px 30px -10px rgba(227,6,19,0.55);
}
.btn-primary::before{
  content: "";
  position: absolute;
  inset: 0;
  left: -75%;
  width: 40%;
  background: linear-gradient(115deg, transparent 0%, rgba(255,255,255,0.35) 50%, transparent 100%);
  transform: skewX(-20deg);
  transition: left .55s var(--ease-premium);
  pointer-events: none;
}
.btn-primary:hover::before{ left: 130%; }
.btn-primary:hover{ background: var(--red-dark); transform: translateY(-3px); box-shadow: var(--shadow-red-lg); }
.btn-primary:active{ transform: translateY(-1px); }
.btn-secondary{
  background: transparent;
  color: var(--charcoal);
  border: 1.5px solid rgba(28,26,27,0.16);
}
.btn-secondary:hover{
  border-color: var(--charcoal);
  transform: translateY(-3px);
  background: rgba(28,26,27,0.04);
}
.btn-secondary.on-dark{ color: var(--white); border-color: rgba(255,255,255,0.28); }
.btn-secondary.on-dark:hover{ border-color: var(--white); background: rgba(255,255,255,0.08); }
.btn-lg{ padding: 18px 38px; font-size: 16px; }
.btn-block{ width: 100%; }
.btn-arrow{ transition: transform .22s var(--ease-premium); }
.btn:hover .btn-arrow{ transform: translateX(4px); }

@media (prefers-reduced-motion: reduce){
  .btn-primary::before{ display: none; }
}

/* ---------- Header ---------- */
.site-header{
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.82);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  border-bottom: 1px solid rgba(28,26,27,0.06);
  transition: box-shadow .3s ease, border-color .3s ease;
}
.site-header.is-scrolled{
  box-shadow: 0 12px 30px -20px rgba(28,26,27,0.35);
  border-bottom-color: rgba(28,26,27,0.1);
}
.header-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  height: 80px;
}
.brand{ display: flex; align-items: center; transition: opacity .2s ease, transform .2s ease; }
.brand:hover{ opacity: 0.85; transform: translateY(-1px); }
.brand-logo{ height: 34px; width: auto; }

.nav{
  display: flex;
  gap: 36px;
  margin-left: auto;
  margin-right: 32px;
}
.nav a{
  position: relative;
  color: var(--charcoal-soft);
  text-decoration: none;
  font-weight: 700;
  font-size: 14.5px;
  letter-spacing: -0.01em;
  padding-bottom: 4px;
  transition: color .15s ease;
}
.nav a::after{
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  border-radius: 2px;
  background: var(--red);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform .28s var(--ease-premium);
}
.nav a:hover{ color: var(--red); }
.nav a:hover::after{ transform: scaleX(1); transform-origin: left; }

.nav-toggle{
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
}
.nav-toggle span{
  display: block;
  height: 2px;
  width: 22px;
  background: var(--charcoal);
  border-radius: 2px;
  transition: transform .2s ease, opacity .2s ease;
}

/* Lien "Plateforme automobile" dans le menu — badge distinctif */
.nav-platform-link{ display: inline-flex !important; align-items: center; gap: 7px; }
.nav-platform-badge{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--white);
  background: var(--red);
  padding: 2px 7px;
  border-radius: var(--radius-pill);
  box-shadow: 0 0 0 0 rgba(227,6,19,0.45);
  animation: badge-pulse 2.8s ease-in-out infinite;
  transform-origin: center;
}
.nav-platform-badge::after{
  content: "";
  position: absolute;
  inset: 0;
  left: -60%;
  width: 45%;
  background: linear-gradient(115deg, transparent 0%, rgba(255,255,255,0.65) 50%, transparent 100%);
  transform: skewX(-20deg);
  animation: badge-shine 3.4s ease-in-out infinite;
}
@keyframes badge-pulse{
  0%, 100%{ box-shadow: 0 0 0 0 rgba(227,6,19,0.4); transform: scale(1); }
  50%{ box-shadow: 0 0 0 5px rgba(227,6,19,0); transform: scale(1.06); }
}
@keyframes badge-shine{
  0%{ left: -60%; }
  38%{ left: 130%; }
  100%{ left: 130%; }
}
@media (prefers-reduced-motion: reduce){
  .nav-platform-badge{ animation: none; box-shadow: none; }
  .nav-platform-badge::after{ animation: none; display: none; }
}

/* ---------- Hero ---------- */
.hero{
  position: relative;
  overflow: hidden;
  padding: 112px 0 116px;
  background: linear-gradient(180deg, var(--grey-050) 0%, var(--white) 100%);
}
.hero-texture{
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
  background-image: linear-gradient(rgba(28,26,27,0.035) 1px, transparent 1px),
                     linear-gradient(90deg, rgba(28,26,27,0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 30% 0%, #000 40%, transparent 100%);
  mask-image: radial-gradient(ellipse 70% 60% at 30% 0%, #000 40%, transparent 100%);
}
.hero-inner{ position: relative; z-index: 2; max-width: 840px; }
.hero-title{
  font-size: clamp(36px, 6.2vw, 62px);
  line-height: 1.04;
  margin-bottom: 24px;
}
.hero-sub{
  font-size: 18.5px;
  line-height: 1.6;
  color: var(--grey-700);
  max-width: 62ch;
  margin-bottom: 40px;
}
.hero-actions{ display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 44px; }

.hero-trust{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--grey-400);
}
.hero-trust-sep{ color: rgba(227,6,19,0.4); }

/* Bandeau de statistiques — renforce la confiance dès le hero */
.hero-stats{
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin: 0;
  padding: 26px 0 0;
  border-top: 1px solid rgba(28,26,27,0.1);
  max-width: 620px;
}
.hero-stat{
  flex: 1 1 0;
  min-width: 140px;
  padding-right: 24px;
}
.hero-stat-number{
  display: block;
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--charcoal);
  margin-bottom: 4px;
}
.hero-stat-number .accent{ color: var(--red-dark); }
.hero-stat-label{
  display: block;
  font-size: 13px;
  color: var(--grey-700);
  line-height: 1.4;
}

/* Lien discret vers la plateforme automobile, sous les repères du hero */
.hero-platform-link{
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-top: 22px;
  padding: 10px 16px 10px 12px;
  border-radius: var(--radius-pill);
  background: rgba(227,6,19,0.07);
  border: 1px solid rgba(227,6,19,0.2);
  color: var(--red-dark);
  font-size: 13.5px;
  font-weight: 700;
  text-decoration: none;
  transition: background .2s ease, border-color .2s ease, transform .2s ease;
}
.hero-platform-link:hover{ background: rgba(227,6,19,0.12); border-color: rgba(227,6,19,0.32); transform: translateY(-1px); }
.hero-platform-link svg{ transition: transform .2s ease; }
.hero-platform-link:hover svg{ transform: translateX(3px); }
.hero-platform-dot{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--red);
  box-shadow: 0 0 0 4px rgba(227,6,19,0.16);
  flex-shrink: 0;
}

.hero-glow{
  position: absolute;
  right: -180px;
  top: -160px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(227,6,19,0.2) 0%, rgba(227,6,19,0) 70%);
  z-index: 1;
}
.hero-glow-violet{
  right: auto;
  left: -220px;
  top: 140px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(155,114,203,0.15) 0%, rgba(155,114,203,0) 70%);
}

/* ---------- Sections ---------- */
.section{ padding: 96px 0; }

/* ---------- Bannière plateforme automobile — véhicule conforme animé ---------- */
.platform-drive{ padding-top: 0; padding-bottom: 0; margin-bottom: 96px; }
.platform-drive-panel{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  align-items: center;
  gap: 40px;
  background: linear-gradient(135deg, var(--charcoal) 0%, #2C1012 130%);
  color: var(--white);
  border-radius: var(--radius-xl);
  padding: 48px 52px;
  box-shadow: 0 32px 60px -24px rgba(227,6,19,0.35), 0 12px 28px -14px rgba(28,26,27,0.4);
  text-decoration: none;
  cursor: pointer;
  transition: transform .35s var(--ease-premium), box-shadow .35s var(--ease-premium);
}
.platform-drive-panel:hover,
.platform-drive-panel:focus-visible{
  transform: translateY(-4px);
  box-shadow: 0 40px 70px -24px rgba(227,6,19,0.48), 0 16px 32px -14px rgba(28,26,27,0.48);
  outline: none;
}
.platform-drive-panel::before{
  content: "";
  position: absolute;
  top: -140px;
  right: -100px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(227,6,19,0.4) 0%, rgba(227,6,19,0) 70%);
  z-index: -1;
}

.platform-drive-text .eyebrow{ margin-bottom: 12px; }
.platform-drive-text h2{ color: var(--white); font-size: clamp(24px, 3vw, 32px); margin-bottom: 12px; }
.platform-drive-text .lead{ color: rgba(255,255,255,0.78); margin-bottom: 22px; }
.platform-drive-btn{ pointer-events: none; }

/* --- Scène véhicule --- */
.platform-drive-scene{
  position: relative;
  min-height: 190px;
  display: flex;
  align-items: flex-end;
  justify-content: center;
}
.platform-drive-badges{
  position: absolute;
  top: 4px;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 8px;
  flex-wrap: wrap;
}
.platform-drive-badge{
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  color: var(--white);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.18);
  padding: 5px 11px;
  border-radius: var(--radius-pill);
  opacity: 0;
  transform: translateY(6px);
  animation: drive-badge-in .5s ease forwards, drive-badge-float 3s ease-in-out infinite;
  animation-delay: var(--d), calc(var(--d) + .5s);
}
@keyframes drive-badge-in{ to{ opacity: 1; transform: translateY(0); } }
@keyframes drive-badge-float{ 0%, 100%{ transform: translateY(0); } 50%{ transform: translateY(-3px); } }

.platform-drive-car{
  position: relative;
  width: 100%;
  max-width: 260px;
  margin-bottom: 26px;
  animation: drive-bounce 1.6s ease-in-out infinite;
  transition: transform .3s ease;
}
.platform-drive-panel:hover .platform-drive-car,
.platform-drive-panel:focus-visible .platform-drive-car{ transform: translateX(6px); }
@keyframes drive-bounce{ 0%, 100%{ transform: translateY(0); } 50%{ transform: translateY(-4px); } }

.platform-drive-ring{
  position: absolute;
  left: 50%;
  bottom: 6px;
  width: 70px;
  height: 70px;
  margin-left: -35px;
  border: 1.5px solid rgba(255,255,255,0.28);
  border-radius: 50%;
  animation: drive-ping 2.4s ease-out infinite;
}
@keyframes drive-ping{
  0%{ transform: scale(0.55); opacity: 0.55; }
  100%{ transform: scale(1.45); opacity: 0; }
}

.car-svg{ display: block; width: 100%; height: auto; overflow: visible; }
.car-shadow{ fill: rgba(0,0,0,0.35); }
.car-body{ fill: var(--red); }
.car-window{ fill: rgba(255,255,255,0.92); }
.car-window-divider{ stroke: var(--charcoal); stroke-width: 2; }
.car-headlight{ fill: #FFE9A8; }
.wheel-rim{ fill: rgba(255,255,255,0.06); stroke: var(--white); stroke-width: 3; }
.wheel-cap{ fill: var(--red); }
.wheel line{ stroke: var(--white); stroke-width: 2.4; }
.wheel{ animation: drive-wheel-spin .7s linear infinite; transition: animation-duration .3s ease; }
@keyframes drive-wheel-spin{ to{ transform: rotate(360deg); } }
.platform-drive-panel:hover .wheel,
.platform-drive-panel:focus-visible .wheel{ animation-duration: .3s; }

.platform-drive-compliant-tag{
  position: absolute;
  right: -6px;
  top: 4px;
  font-family: var(--font-display);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--charcoal);
  background: var(--white);
  padding: 4px 9px;
  border-radius: var(--radius-pill);
  box-shadow: 0 8px 16px -8px rgba(0,0,0,0.4);
}

.platform-drive-road{
  position: absolute;
  left: -8px;
  right: -8px;
  bottom: 14px;
  height: 3px;
  background-image: repeating-linear-gradient(90deg, rgba(255,255,255,0.4) 0 22px, transparent 22px 44px);
  animation: drive-road-scroll .5s linear infinite;
  transition: animation-duration .3s ease;
}
.platform-drive-panel:hover .platform-drive-road,
.platform-drive-panel:focus-visible .platform-drive-road{ animation-duration: .22s; }
@keyframes drive-road-scroll{ to{ background-position-x: -44px; } }

.platform-drive-tap{
  position: absolute;
  right: 2px;
  bottom: -8px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  color: rgba(255,255,255,0.65);
  animation: drive-tap-pulse 2s ease-in-out infinite;
}
@keyframes drive-tap-pulse{ 0%, 100%{ opacity: 0.5; } 50%{ opacity: 1; } }

/* Pause : hors champ ou préférence utilisateur */
.platform-drive-panel.is-paused .wheel,
.platform-drive-panel.is-paused .platform-drive-road,
.platform-drive-panel.is-paused .platform-drive-car,
.platform-drive-panel.is-paused .platform-drive-ring,
.platform-drive-panel.is-paused .platform-drive-badge,
.platform-drive-panel.is-paused .platform-drive-tap{
  animation-play-state: paused;
}

@media (prefers-reduced-motion: reduce){
  .platform-drive-car,
  .wheel,
  .platform-drive-road,
  .platform-drive-ring,
  .platform-drive-badge,
  .platform-drive-tap{ animation: none !important; }
  .platform-drive-badge{ opacity: 1; transform: none; }
}

@media (max-width: 980px){
  .platform-drive-panel{
    grid-template-columns: 1fr;
    text-align: center;
    padding: 44px 32px;
  }
  .platform-drive-scene{ margin-top: 12px; min-height: 170px; }
  .platform-drive-tap{ right: 50%; transform: translateX(50%); }
}
@media (max-width: 720px){
  .platform-drive{ margin-bottom: 64px; }
  .platform-drive-panel{ margin: 0 10px; border-radius: var(--radius-lg); padding: 36px 24px; }
}

/* ---------- Positioning ---------- */
@property --glow-angle{
  syntax: '<angle>';
  inherits: false;
  initial-value: 0deg;
}

.positioning{
  position: relative;
  z-index: 0;
  isolation: isolate;
  background: var(--charcoal);
  color: var(--white);
  border-radius: var(--radius-xl);
  margin: 0 16px;
}
.positioning .container{ padding: 8px 32px; }

/* Bordure lumineuse façon "Gemini" : anneau multicolore tournant, net sur
   le contour (::before), masqué au centre par un fond plein (::after).
   Un halo doux supplémentaire (::before, box-shadow) diffuse la lumière
   vers l'extérieur du cadre. */
.positioning::before{
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: inherit;
  background: conic-gradient(
    from var(--glow-angle),
    #4285F4 0deg,
    #9B72CB 90deg,
    #D96570 180deg,
    #F2A65A 270deg,
    #4285F4 360deg
  );
  filter: blur(2.5px) saturate(1.3);
  opacity: 1;
  z-index: -2;
  animation:
    glow-rotate 7s linear infinite,
    glow-pulse 4.5s ease-in-out infinite;
  pointer-events: none;
  box-shadow: 0 0 34px 6px rgba(155, 114, 203, 0.35);
}
.positioning::after{
  content: "";
  position: absolute;
  inset: 2.5px;
  border-radius: calc(var(--radius-xl) - 2.5px);
  background: var(--charcoal);
  z-index: -1;
}

@keyframes glow-rotate{
  to{ --glow-angle: 360deg; }
}
@keyframes glow-pulse{
  0%, 100%{ opacity: 0.85; }
  50%{ opacity: 1; }
}

@media (prefers-reduced-motion: reduce){
  .positioning::before{ animation: none; opacity: 0.9; }
}
.positioning-grid{
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 56px;
  align-items: center;
}
.positioning h2{ color: var(--white); }
.positioning .lead{ color: rgba(255,255,255,0.72); }
.statement{
  font-size: 20px;
  font-weight: 700;
  color: var(--white);
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.14);
}

.positioning-stats{
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.stat-card{
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-number{ font-size: 34px; font-weight: 800; color: var(--red); }
.stat-label{ font-size: 14px; color: rgba(255,255,255,0.75); }

/* ---------- Secteurs ---------- */
.secteurs{
  position: relative;
  overflow: hidden;
}
.secteurs::before{
  content: "";
  position: absolute;
  left: 50%;
  top: -40px;
  width: 900px;
  height: 900px;
  transform: translateX(-50%);
  background: radial-gradient(circle, rgba(227,6,19,0.05) 0%, rgba(227,6,19,0) 60%);
  z-index: -1;
  pointer-events: none;
}
.secteurs h2{ max-width: 720px; margin-left: auto; margin-right: auto; margin-bottom: 64px; }

.cards-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.card{
  position: relative;
  overflow: hidden;
  background: linear-gradient(160deg, var(--white) 0%, var(--grey-050) 100%);
  border: 1px solid rgba(28,26,27,0.06);
  border-radius: var(--radius-xl);
  padding: 42px 36px;
  box-shadow: var(--shadow-card);
  transition: transform .28s cubic-bezier(.2,.8,.2,1), box-shadow .28s ease, border-color .28s ease;
}
.card::before{
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--red) 0%, var(--violet) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease-premium);
}
.card:hover{
  transform: translateY(-7px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(227,6,19,0.16);
}
.card:hover::before{ transform: scaleX(1); }
.card-icon{
  width: 60px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, var(--white) 0%, #FBEAEB 100%);
  color: var(--red);
  margin-bottom: 24px;
  box-shadow: 0 12px 24px -12px rgba(227,6,19,0.35), inset 0 0 0 1px rgba(227,6,19,0.08);
  transition: transform .28s ease, box-shadow .28s ease;
}
.card-icon svg{ width: 26px; height: 26px; }
.card:hover .card-icon{
  transform: scale(1.06) rotate(-4deg);
  box-shadow: 0 16px 30px -12px rgba(227,6,19,0.45), inset 0 0 0 1px rgba(227,6,19,0.14);
}
.card h3{ margin-bottom: 12px; }
.card p{ color: var(--grey-700); font-size: 15px; margin: 0; }

/* ---------- Intelligence artificielle ---------- */
.ia{
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: radial-gradient(120% 140% at 15% 0%, #2B1E42 0%, var(--charcoal) 45%, #1A1013 100%);
  color: var(--white);
  border-radius: var(--radius-xl);
  margin: 0 16px;
  box-shadow:
    0 40px 90px -30px rgba(66,133,244,0.25),
    0 20px 50px -20px rgba(0,0,0,0.5);
}

/* Semis de points animé, façon réseau de neurones */
.ia-dots{
  position: absolute;
  inset: -20% -10%;
  z-index: 0;
  background-image: radial-gradient(rgba(255,255,255,0.16) 1.4px, transparent 1.4px);
  background-size: 30px 30px;
  -webkit-mask-image: radial-gradient(ellipse 65% 60% at 50% 20%, #000 30%, transparent 100%);
  mask-image: radial-gradient(ellipse 65% 60% at 50% 20%, #000 30%, transparent 100%);
  animation: ia-drift 22s linear infinite;
  pointer-events: none;
}
@keyframes ia-drift{
  to{ background-position: 240px 180px; }
}
@media (prefers-reduced-motion: reduce){
  .ia-dots{ animation: none; }
}

/* Halos colorés (bleu + violet), rappel de la bordure "Gemini" */
.ia::before{
  content: "";
  position: absolute;
  top: -160px;
  right: -140px;
  width: 480px;
  height: 480px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(66,133,244,0.32) 0%, rgba(66,133,244,0) 70%);
  z-index: 0;
  pointer-events: none;
}
.ia::after{
  content: "";
  position: absolute;
  bottom: -180px;
  left: -120px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(155,114,203,0.28) 0%, rgba(155,114,203,0) 70%);
  z-index: 0;
  pointer-events: none;
}

.ia .container{ position: relative; z-index: 1; }

.ia-intro{
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 700px;
  margin: 0 auto 52px;
}

/* Étiquette "IA" pulsante, plus affirmée qu'un simple eyebrow */
.ia-tag{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 auto 22px;
  padding: 9px 18px 9px 14px;
  border-radius: var(--radius-pill);
  background: linear-gradient(120deg, rgba(66,133,244,0.18), rgba(155,114,203,0.18));
  border: 1px solid rgba(255,255,255,0.16);
  font-family: var(--font-display);
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--white);
}
.ia-tag-dot{
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: linear-gradient(135deg, #4285F4, #9B72CB);
  box-shadow: 0 0 0 4px rgba(66,133,244,0.18);
  animation: ia-pulse 2.2s ease-in-out infinite;
  flex-shrink: 0;
}
@keyframes ia-pulse{
  0%, 100%{ box-shadow: 0 0 0 4px rgba(66,133,244,0.18); }
  50%{ box-shadow: 0 0 0 8px rgba(155,114,203,0.05); }
}
@media (prefers-reduced-motion: reduce){
  .ia-tag-dot{ animation: none; }
}

.ia-intro h2{ color: var(--white); max-width: 640px; }
.ia-intro .lead{ color: rgba(255,255,255,0.72); margin: 0 auto; }
.ia-break{ display: none; }

.ia-grid{
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 44px;
}

/* Cartes "vitrées" sur fond sombre */
.ia-card{
  position: relative;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: 36px 30px 32px;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: transform .28s var(--ease-premium), background .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.ia-card:hover{
  transform: translateY(-6px);
  background: rgba(255,255,255,0.08);
  border-color: rgba(255,255,255,0.22);
  box-shadow: 0 24px 48px -20px rgba(66,133,244,0.35);
}
.ia-card-index{
  position: absolute;
  top: 24px;
  right: 26px;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: rgba(255,255,255,0.3);
}
.ia-card h3{ color: var(--white); margin-bottom: 12px; }
.ia-card p{ color: rgba(255,255,255,0.68); font-size: 15px; margin: 0; }

.ia-icon{
  background: linear-gradient(135deg, rgba(66,133,244,0.22), rgba(155,114,203,0.22));
  color: var(--white);
  box-shadow: 0 12px 24px -12px rgba(66,133,244,0.4), inset 0 0 0 1px rgba(255,255,255,0.14);
}
.ia-card:hover .ia-icon{
  transform: scale(1.06) rotate(-4deg);
  box-shadow: 0 16px 30px -12px rgba(155,114,203,0.5), inset 0 0 0 1px rgba(255,255,255,0.2);
}

.ia-cta{ display: flex; justify-content: center; }

@media (max-width: 720px){
  .ia{ margin: 0 10px; border-radius: var(--radius-lg); }
  .ia-break{ display: inline; }
}

/* ---------- Conseil & accompagnement ---------- */
.conseil{ position: relative; }
.conseil-grid{
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: start;
}

.conseil-text{ position: sticky; top: 110px; }
.conseil-text .btn{ margin-top: 8px; }

.conseil-steps{
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
}
.conseil-step{
  position: relative;
  display: flex;
  align-items: flex-start;
  gap: 22px;
  padding: 28px 8px;
  border-top: 1px solid rgba(28,26,27,0.08);
  transition: padding-left .25s var(--ease-premium);
}
.conseil-step:last-child{ border-bottom: 1px solid rgba(28,26,27,0.08); }
.conseil-step:hover{ padding-left: 14px; }
.conseil-step-num{
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--grey-050);
  border: 1.5px solid rgba(227,6,19,0.18);
  color: var(--red);
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  transition: background .25s ease, border-color .25s ease, color .25s ease;
}
.conseil-step:hover .conseil-step-num{
  background: var(--red);
  border-color: var(--red);
  color: var(--white);
}
.conseil-step h3{ margin-bottom: 6px; }
.conseil-step p{ color: var(--grey-700); font-size: 15px; margin: 0; max-width: 46ch; }

@media (max-width: 860px){
  .conseil-grid{ grid-template-columns: 1fr; gap: 32px; }
  .conseil-text{ position: static; }
}

/* ---------- Contact ---------- */
.contact-panel{
  position: relative;
  background: linear-gradient(160deg, var(--grey-050) 0%, var(--white) 100%);
  border: 1px solid rgba(28,26,27,0.06);
  border-radius: var(--radius-xl);
  padding: 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
  box-shadow: var(--shadow-premium);
}
.contact-text h2{ margin-bottom: 16px; }
.contact-platform-hint{
  font-size: 14px;
  color: var(--grey-700);
  margin: 18px 0 0;
}
.contact-platform-hint a{
  color: var(--red-dark);
  font-weight: 700;
  text-decoration: none;
}
.contact-platform-hint a:hover{ text-decoration: underline; }

.contact-form{
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 34px;
  box-shadow: var(--shadow-card), 0 0 0 1px rgba(28,26,27,0.04);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.field{ display: flex; flex-direction: column; gap: 8px; }
.field label{ font-size: 13px; font-weight: 700; font-family: var(--font-display); color: var(--charcoal-soft); }
.field input{
  border: 1.5px solid rgba(28,26,27,0.12);
  border-radius: var(--radius-md);
  padding: 15px 18px;
  font-size: 15px;
  font-family: inherit;
  color: var(--charcoal);
  background: var(--grey-050);
  transition: border-color .2s ease, background .2s ease, box-shadow .2s ease;
}
.field input::placeholder{ color: var(--grey-400); }
.field input:focus{
  outline: none;
  border-color: var(--red);
  background: var(--white);
  box-shadow: 0 0 0 4px rgba(227,6,19,0.1);
}
.honeypot{ position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.form-note{ font-size: 13.5px; color: var(--grey-700); min-height: 18px; margin: 0; text-align: center; }
.form-note.success{ color: #1a7f37; font-weight: 700; }
.form-note.error{ color: var(--red); font-weight: 700; }

/* ---------- Footer ---------- */
.site-footer{
  position: relative;
  padding: 56px 0 40px;
  background: var(--grey-050);
}
.footer-divider{
  height: 3px;
  background: linear-gradient(90deg, var(--red) 0%, var(--violet) 50%, transparent 100%);
  opacity: 0.7;
}
.footer-inner{
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  align-items: start;
  gap: 32px 24px;
  padding-top: 44px;
}
.footer-brand{ display: flex; flex-direction: column; align-items: flex-start; gap: 12px; }
.footer-logo{
  height: 30px;
  width: auto;
  aspect-ratio: 637 / 207;
  align-self: flex-start;
  opacity: 0.9;
}
.footer-tagline{ font-size: 14px; color: var(--grey-700); max-width: 34ch; margin: 0; }
.footer-app-link{
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 13.5px;
  font-weight: 700;
  color: var(--white);
  background: var(--red);
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  text-decoration: none;
  box-shadow: 0 10px 22px -10px rgba(227,6,19,0.55);
  transition: background .2s ease, transform .2s ease, box-shadow .2s ease;
}
.footer-app-link:hover{
  background: var(--red-dark);
  transform: translateY(-2px);
  box-shadow: 0 14px 26px -10px rgba(227,6,19,0.6);
}

.footer-nav{
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-self: end;
}
.footer-nav a{
  color: var(--charcoal-soft);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  transition: color .15s ease;
}
.footer-nav a:hover{ color: var(--red); }

.footer-copy{
  grid-column: 1 / -1;
  font-size: 13px;
  color: var(--grey-400);
  margin: 24px 0 0;
  padding-top: 24px;
  border-top: 1px solid rgba(28,26,27,0.08);
}

/* =========================================================
   Responsive
========================================================= */
@media (max-width: 860px){
  .positioning-grid{ grid-template-columns: 1fr; }
  .contact-panel{ grid-template-columns: 1fr; padding: 36px 24px; }
  .cards-grid{ grid-template-columns: 1fr; }
  .ia-grid{ grid-template-columns: 1fr; }
  .footer-inner{ grid-template-columns: 1fr; }
  .footer-nav{ justify-self: start; }
}

@media (max-width: 980px) and (min-width: 861px){
  .ia-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px){
  .nav, .nav-cta{ display: none; }
  .nav-toggle{ display: flex; }

  .nav.open{
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--white);
    padding: 20px 24px 28px;
    gap: 18px;
    box-shadow: var(--shadow-soft);
    margin: 0;
  }

  .hero{ padding: 56px 0 64px; }
  .hero-actions{ flex-direction: column; align-items: stretch; }
  .hero-actions .btn{ width: 100%; }
  .hero-stats{ gap: 20px 0; }
  .hero-stat{ flex: 1 1 44%; min-width: 44%; }
  .section{ padding: 64px 0; }
  .positioning{ margin: 0 10px; border-radius: var(--radius-lg); }
  .positioning .container{ padding: 8px 22px; }
}

/* ---------- Barre CTA flottante (mobile) ---------- */
.mobile-cta-bar{
  display: none;
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 200;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  background: rgba(255,255,255,0.94);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-top: 1px solid rgba(28,26,27,0.08);
  box-shadow: 0 -14px 30px -22px rgba(28,26,27,0.4);
  transform: translateY(110%);
  opacity: 0;
  transition: transform .32s var(--ease-premium), opacity .32s ease;
}
.mobile-cta-bar.is-visible{ transform: translateY(0); opacity: 1; }
.mobile-cta-bar .btn{ width: 100%; }
@media (max-width: 720px){
  .mobile-cta-bar{ display: block; }
}
@media (prefers-reduced-motion: reduce){
  .mobile-cta-bar{ transition: opacity .2s ease; transform: none; }
}