/* ============================================================
   PORTAIL DE L'INNOVATION IUA — Design System V2
   Palette bleu IUA · Animations · Correctif formulaire mobile
   ============================================================ */

:root{
  /* Palette IUA */
  --paper:      #F7F2E8;
  --paper-2:    #FFFFFF;
  --paper-blue: #E6F4FB;

  --primary:        #1E8FBD;   /* bleu IUA soutenu (boutons) */
  --primary-2:      #34B6E8;   /* bleu exact du logo (accents) */
  --primary-3:      #5DCBF0;
  --primary-deep:   #0F5A7E;   /* sections foncées */
  --primary-darker: #0A3E5A;
  --primary-darkest:#062E45;

  --ink:      #0F2A3D;         /* texte */
  --ink-soft: #3A546B;

  --accent:   #F59E2B;         /* ambre complémentaire */
  --accent-2: #E08518;
  --gold:     #F2C94C;

  --line:      #D9CFB8;
  --line-blue: #BDD9E8;
  --rule:      #B7AB8E;

  --success: #1FA67D;
  --danger:  #B22E2E;

  /* Typo */
  --font-display: 'Fraunces', Georgia, serif;
  --font-body:    'Plus Jakarta Sans', system-ui, sans-serif;
  --font-mono:    'JetBrains Mono', monospace;

  /* Rayons & ombres */
  --radius:    10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(15,42,61,.06);
  --shadow:    0 12px 32px -10px rgba(15,42,61,.18);
  --shadow-lg: 0 32px 80px -20px rgba(30,143,189,.35);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:16px;line-height:1.6;
  color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent)}

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:500;line-height:1.1;
  letter-spacing:-.015em;margin:0 0 .5em;
  color:var(--ink);
  font-variation-settings:"opsz" 32;
}
h1{font-size:clamp(2.2rem,6vw,4.2rem);font-weight:400}
h2{font-size:clamp(1.6rem,3.5vw,2.6rem);font-weight:400}
h3{font-size:1.25rem}
h4{font-size:.8rem;font-family:var(--font-body);font-weight:700;text-transform:uppercase;letter-spacing:.12em}
p{margin:0 0 1em}
.lead{font-size:clamp(1rem,1.4vw,1.18rem);line-height:1.55;color:var(--ink-soft)}
.container{max-width:1280px;margin:0 auto;padding:0 24px}

/* ============================================================
   TOP STRIP + HEADER (glassmorphique)
   ============================================================ */
.topstrip{
  background:linear-gradient(90deg,var(--primary-darker),var(--primary-deep));
  color:#fff;font-size:.74rem;letter-spacing:.06em;text-transform:uppercase;
}
.topstrip .container{display:flex;justify-content:space-between;align-items:center;padding-top:8px;padding-bottom:8px;gap:12px}
.topstrip a{color:#fff;opacity:.85}
.topstrip a:hover{opacity:1;color:var(--primary-3)}

.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(247,242,232,.75);
  backdrop-filter:blur(18px) saturate(160%);
  -webkit-backdrop-filter:blur(18px) saturate(160%);
  border-bottom:1px solid rgba(189,217,232,.6);
  transition:background .3s, box-shadow .3s;
}
.site-header.scrolled{background:rgba(247,242,232,.94);box-shadow:0 4px 20px -10px rgba(15,42,61,.16)}
.site-header .container{display:flex;align-items:center;justify-content:space-between;padding-top:14px;padding-bottom:14px}

.brand{display:flex;align-items:center;gap:14px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:56px;height:44px;flex-shrink:0;
  background:url('../img/logo-mark.png') center/contain no-repeat;
  text-indent:-9999px;overflow:hidden;
  transition:transform .3s;
}
.brand:hover .brand-mark{transform:rotate(-6deg) scale(1.06)}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-text strong{font-family:var(--font-display);font-weight:600;font-size:1rem;color:var(--ink)}
.brand-text span{font-size:.66rem;letter-spacing:.15em;text-transform:uppercase;color:var(--primary);margin-top:4px;font-weight:700}

.nav{display:flex;gap:6px;align-items:center}
.nav a{
  padding:8px 14px;font-size:.88rem;font-weight:500;color:var(--ink);
  border-radius:99px;transition:all .2s;border-bottom:0;
}
.nav a:hover{background:rgba(52,182,232,.12);color:var(--primary-deep)}
.nav a.is-active{background:var(--primary-deep);color:#fff}

.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;border-radius:99px;color:var(--ink)}
.nav-toggle:hover{background:rgba(52,182,232,.12)}
.nav-toggle svg{width:24px;height:24px}
@media (max-width:900px){
  .nav-toggle{display:block}
  .nav{
    display:none;position:absolute;top:100%;left:0;right:0;
    flex-direction:column;gap:0;
    background:var(--paper);border-bottom:1px solid var(--line-blue);
    padding:8px;box-shadow:var(--shadow);
  }
  .nav.is-open{display:flex}
  .nav a{width:100%;padding:14px 18px;border-radius:var(--radius)}
}

/* ============================================================
   BOUTONS (shimmer au hover)
   ============================================================ */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 28px;
  font-family:var(--font-body);font-weight:600;font-size:.92rem;
  border:1px solid transparent;border-radius:99px;
  cursor:pointer;text-decoration:none;
  transition:all .25s cubic-bezier(.2,.8,.2,1);
  position:relative;overflow:hidden;
}
.btn::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,transparent 30%,rgba(255,255,255,.25) 50%,transparent 70%);
  transform:translateX(-100%);transition:transform .6s;
}
.btn:hover::before{transform:translateX(100%)}
.btn-primary{background:linear-gradient(135deg,var(--primary),var(--primary-deep));color:#fff;box-shadow:0 8px 20px -8px rgba(30,143,189,.45)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px -8px rgba(30,143,189,.55);color:#fff}
.btn-accent{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#fff;box-shadow:0 8px 20px -8px rgba(245,158,43,.5)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 16px 32px -8px rgba(245,158,43,.6);color:#fff}
.btn-ghost{background:rgba(255,255,255,.55);border-color:var(--line-blue);color:var(--ink);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:var(--primary-deep);color:#fff;border-color:var(--primary-deep);transform:translateY(-2px)}
.btn-link{padding:0;background:none;color:var(--ink);border-bottom:1px solid var(--accent);border-radius:0}
.btn-link:hover{color:var(--accent)}
.btn .arrow{display:inline-block;transition:transform .25s}
.btn:hover .arrow{transform:translateX(5px)}

/* ============================================================
   HERO (mesh gradient animé + étoiles flottantes)
   ============================================================ */
.hero{
  position:relative;
  padding:72px 0 96px;
  overflow:hidden;isolation:isolate;
}
.hero::before{
  content:"";position:absolute;inset:-10%;z-index:-2;
  background:
    radial-gradient(ellipse 60% 60% at 20% 30%, rgba(52,182,232,.45), transparent 60%),
    radial-gradient(ellipse 70% 50% at 80% 70%, rgba(245,158,43,.25), transparent 60%),
    radial-gradient(ellipse 50% 70% at 50% 110%, rgba(30,143,189,.4), transparent 60%),
    var(--paper);
  animation:meshShift 18s ease-in-out infinite alternate;
}
@keyframes meshShift{
  0%{transform:translate(0,0) scale(1)}
  33%{transform:translate(-3%,2%) scale(1.05)}
  66%{transform:translate(2%,-3%) scale(1.02)}
  100%{transform:translate(-1%,1%) scale(1.08)}
}
.hero::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:radial-gradient(circle at 1px 1px, rgba(15,42,61,.12) 1px, transparent 0);
  background-size:24px 24px;opacity:.4;pointer-events:none;
  -webkit-mask-image:radial-gradient(ellipse at center, black, transparent 70%);
  mask-image:radial-gradient(ellipse at center, black, transparent 70%);
}
.hero .container{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:56px;align-items:center}
@media (max-width:900px){
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
}

.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.7rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--primary-deep);font-weight:700;
  background:rgba(255,255,255,.7);
  padding:8px 16px;border-radius:99px;
  border:1px solid var(--line-blue);
  margin-bottom:28px;
  backdrop-filter:blur(8px);
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 12px var(--accent);animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(1.3)}}

.hero h1 em{
  font-style:italic;
  background:linear-gradient(120deg,var(--primary-deep),var(--primary-2),var(--accent));
  background-size:200% 100%;
  -webkit-background-clip:text;background-clip:text;color:transparent;
  animation:gradientText 6s ease-in-out infinite;
  font-variation-settings:"opsz" 72,"SOFT" 50;
}
@keyframes gradientText{0%,100%{background-position:0% 50%}50%{background-position:100% 50%}}
.hero .lead{margin:24px 0 32px;max-width:540px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap}

/* Hero card (bleu profond, glow) */
.hero-card{
  position:relative;
  background:linear-gradient(135deg,var(--primary-darker),var(--primary-darkest));
  color:#fff;padding:36px 32px;
  border-radius:var(--radius-xl);
  overflow:hidden;
  box-shadow:var(--shadow-lg);
  transition:transform .4s cubic-bezier(.2,.8,.2,1);
}
.hero-card:hover{transform:translateY(-6px)}
.hero-card::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 0% 0%, rgba(52,182,232,.4), transparent 50%),
    radial-gradient(circle at 100% 100%, rgba(245,158,43,.18), transparent 50%);
  pointer-events:none;
}
.hero-card::after{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.5),transparent)}
.hero-card-label{
  font-size:.66rem;letter-spacing:.18em;text-transform:uppercase;
  color:var(--primary-2);font-weight:700;
  display:flex;align-items:center;gap:8px;margin-bottom:14px;position:relative;
}
.hero-card-label::before{content:"";width:24px;height:1px;background:var(--primary-2)}
.hero-card h3{color:#fff;font-size:1.35rem;margin-bottom:22px;position:relative}
.hero-card ol{list-style:none;padding:0;margin:0;counter-reset:steps;position:relative}
.hero-card ol li{
  counter-increment:steps;
  padding:13px 0 13px 46px;
  border-top:1px solid rgba(255,255,255,.1);
  position:relative;font-size:.92rem;
  transition:padding-left .25s, color .25s;
}
.hero-card ol li:first-child{border-top:0}
.hero-card ol li:hover{padding-left:54px;color:var(--primary-2)}
.hero-card ol li::before{
  content:counter(steps,decimal-leading-zero);
  position:absolute;left:0;top:13px;
  font-family:var(--font-display);
  color:var(--primary-2);font-weight:600;font-size:.98rem;
  transition:transform .25s;
}
.hero-card ol li:hover::before{transform:scale(1.2)}

/* ============================================================
   MARQUEE (bandeau défilant)
   ============================================================ */
.marquee{
  background:var(--primary-darkest);color:var(--paper);
  padding:16px 0;overflow:hidden;
  border-top:1px solid var(--primary-deep);
  border-bottom:1px solid var(--primary-deep);
}
.marquee-track{
  display:flex;gap:56px;
  animation:scrollX 30s linear infinite;
  white-space:nowrap;
  font-family:var(--font-display);font-size:1.3rem;font-style:italic;
}
.marquee-track span{display:flex;align-items:center;gap:56px}
.marquee-track span::after{content:"✦";color:var(--accent);font-size:.8em}
@keyframes scrollX{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ============================================================
   SECTIONS
   ============================================================ */
.section{padding:88px 0;position:relative}
.section-tight{padding:52px 0}
@media (max-width:700px){.section{padding:60px 0}}

.section-head{
  display:flex;justify-content:space-between;align-items:flex-end;
  gap:32px;margin-bottom:52px;
}
@media (max-width:700px){.section-head{flex-direction:column;align-items:flex-start;gap:14px}}
.section-head .section-title{margin:0;max-width:720px}
.section-head .section-num{font-family:var(--font-mono);font-size:.8rem;color:var(--accent);letter-spacing:.12em;white-space:nowrap;font-weight:600}

/* Section bleu profond (remplace l'ancien noir) */
.section-dark{
  background:linear-gradient(135deg,var(--primary-deep),var(--primary-darker));
  color:#fff;position:relative;overflow:hidden;
}
.section-dark::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(circle at 80% 20%, rgba(52,182,232,.3), transparent 40%),
    radial-gradient(circle at 20% 80%, rgba(245,158,43,.12), transparent 40%);
  pointer-events:none;
}
.section-dark .container{position:relative}
.section-dark h1,.section-dark h2,.section-dark h3,.section-dark h4{color:#fff}
.section-dark .section-head{border-bottom:0}
.section-dark .section-num{color:var(--gold)}
.section-dark .eyebrow{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.2)}
.section-dark .lead{color:rgba(255,255,255,.78)}

.section-paper-2{background:linear-gradient(180deg,var(--paper) 0%,var(--paper-blue) 100%)}

/* ============================================================
   STATS (bloc bleu profond)
   ============================================================ */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  padding:8px;border:0;
  background:linear-gradient(135deg,var(--primary-darkest),var(--primary-darker));
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-lg);
  position:relative;overflow:hidden;
}
.stats::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 50% 0%,rgba(52,182,232,.3),transparent 60%);pointer-events:none}
@media (max-width:700px){.stats{grid-template-columns:repeat(2,1fr)}}
.stat{
  background:rgba(255,255,255,.05);
  padding:28px 22px;border:0;border-radius:var(--radius-lg);
  position:relative;transition:all .3s;
}
.stat:hover{background:rgba(255,255,255,.1);transform:translateY(-4px)}
.stat-num{
  font-family:var(--font-display);
  font-size:clamp(2rem,4vw,2.7rem);font-weight:400;
  color:#fff;display:block;line-height:1;margin-bottom:8px;
}
.stat-label{font-size:.72rem;color:rgba(255,255,255,.65);text-transform:uppercase;letter-spacing:.12em;font-weight:600}

/* ============================================================
   FEATURES (cartes arrondies, hover lift)
   ============================================================ */
.feature-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  background:transparent;border:0;
}
@media (max-width:900px){.feature-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.feature-grid{grid-template-columns:1fr}}
.feature{
  background:var(--paper-2);
  padding:32px 26px;position:relative;
  border-radius:var(--radius-xl);
  border:1px solid var(--line-blue);
  transition:all .4s cubic-bezier(.2,.8,.2,1);
  isolation:isolate;overflow:hidden;
}
.feature::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(135deg,transparent,rgba(52,182,232,.08));
  opacity:0;transition:opacity .4s;
}
.feature:hover{background:var(--paper-2);transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--primary-2)}
.feature:hover::before{opacity:1}
.feature-icon{
  width:48px;height:48px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;margin-bottom:18px;border-radius:12px;
  box-shadow:0 8px 20px -8px rgba(30,143,189,.5);
  transition:transform .3s;
}
.feature:hover .feature-icon{transform:rotate(-8deg) scale(1.1)}
.feature-icon svg{width:24px;height:24px}
.feature h3{font-family:var(--font-body);font-size:1.05rem;font-weight:700;margin-bottom:8px}
.feature p{font-size:.9rem;color:var(--ink-soft);margin:0}
.feature-num{position:absolute;top:20px;right:24px;font-family:var(--font-mono);font-size:.72rem;color:var(--primary);letter-spacing:.1em;opacity:.6}

/* ============================================================
   CIRCUIT (verre dépoli dans les sections foncées)
   ============================================================ */
.circuit{display:grid;grid-template-columns:repeat(6,1fr);gap:12px;margin-top:28px}
@media (max-width:900px){.circuit{grid-template-columns:repeat(3,1fr)}}
@media (max-width:560px){.circuit{grid-template-columns:repeat(2,1fr)}}
.circuit-step{
  background:var(--paper-2);
  border:1px solid var(--line-blue);
  padding:22px 18px;border-radius:var(--radius-lg);
  position:relative;transition:all .3s;
}
.circuit-step:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary-2)}
.section-dark .circuit-step{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.15);color:#fff;
  backdrop-filter:blur(8px);
}
.section-dark .circuit-step:hover{background:rgba(255,255,255,.1);border-color:var(--primary-2)}
.circuit-step .n{
  font-family:var(--font-display);font-size:1.8rem;color:var(--accent);
  display:block;line-height:1;margin-bottom:10px;
}
.section-dark .circuit-step .n{color:var(--primary-2)}
.circuit-step h4{font-size:.85rem;font-family:var(--font-display);letter-spacing:0;text-transform:none;margin:0;font-weight:500}
.section-dark .circuit-step h4{color:#fff}

/* ============================================================
   PROJETS (hover lift + glow)
   ============================================================ */
.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
@media (max-width:900px){.project-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:600px){.project-grid{grid-template-columns:1fr}}
.project{
  background:var(--paper-2);
  border:1px solid var(--line-blue);
  border-radius:var(--radius-xl);
  overflow:hidden;display:flex;flex-direction:column;
  transition:all .4s cubic-bezier(.2,.8,.2,1);
}
.project:hover{transform:translateY(-8px) scale(1.01);box-shadow:var(--shadow-lg);border-color:var(--primary-2)}
.project-cover{
  aspect-ratio:4/3;position:relative;
  display:grid;place-items:center;color:#fff;
  font-family:var(--font-display);font-size:3.2rem;
  overflow:hidden;
  background:linear-gradient(135deg,var(--primary-2),var(--primary-deep));
}
.project-cover::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 30% 30%,rgba(255,255,255,.2),transparent 60%)}
.project-cover::after{content:"";position:absolute;bottom:-30%;right:-20%;width:60%;height:60%;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.15),transparent)}
.project-cover.amber{background:linear-gradient(135deg,var(--accent),var(--accent-2))}
.project-cover.ink{background:linear-gradient(135deg,var(--primary-darkest),var(--primary-darker))}
.project-cover.gold{background:linear-gradient(135deg,var(--gold),#C99A24);color:var(--ink)}
.project-cover .tag{
  position:absolute;top:14px;left:14px;z-index:1;
  background:rgba(255,255,255,.92);color:var(--ink);
  font-family:var(--font-body);font-size:.64rem;font-weight:700;
  padding:5px 12px;letter-spacing:.1em;text-transform:uppercase;
  border-radius:99px;
}
.project-body{padding:24px;display:flex;flex-direction:column;flex:1}
.project-body h3{font-size:1.12rem;margin-bottom:8px}
.project-body p{font-size:.9rem;color:var(--ink-soft);margin-bottom:16px;flex:1}
.project-meta{display:flex;justify-content:space-between;align-items:center;font-size:.78rem;color:var(--ink-soft);border-top:1px solid var(--line-blue);padding-top:14px}
.project-meta strong{color:var(--ink)}

/* ============================================================
   CONCOURS (cartes avec barre latérale animée)
   ============================================================ */
.contest-list{display:flex;flex-direction:column;gap:12px;border-top:0}
.contest{
  background:var(--paper-2);
  border:1px solid var(--line-blue);
  border-radius:var(--radius-lg);
  padding:24px;
  display:grid;grid-template-columns:110px 1fr auto;gap:24px;align-items:center;
  transition:all .3s;position:relative;overflow:hidden;
  border-bottom:1px solid var(--line-blue);
}
.contest::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;
  background:linear-gradient(180deg,var(--primary-2),var(--primary-deep));
  transform:scaleY(0);transform-origin:top;transition:transform .3s;
}
.contest:hover{transform:translateX(6px);box-shadow:var(--shadow);border-color:var(--primary-2)}
.contest:hover::before{transform:scaleY(1)}
@media (max-width:800px){.contest{grid-template-columns:1fr;gap:14px}}
.contest-date{font-family:var(--font-body);font-size:.68rem;color:var(--ink-soft);text-transform:uppercase;letter-spacing:.1em;font-weight:600}
.contest-date strong{display:block;font-family:var(--font-display);font-size:1.7rem;color:var(--primary-deep);line-height:1.1;margin-top:4px;font-weight:500}
.contest-body h3{font-size:1.1rem;margin-bottom:4px}
.contest-body p{margin:0 0 8px;color:var(--ink-soft);font-size:.88rem}
.contest-cat{
  display:inline-block;font-size:.64rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--primary-deep);font-weight:700;
  background:var(--paper-blue);padding:4px 12px;border-radius:99px;margin-top:0;
}

/* Onglets filtres */
.tabs{
  display:flex;gap:6px;flex-wrap:wrap;margin-bottom:28px;
  padding:6px;background:var(--paper-2);
  border:1px solid var(--line-blue);border-radius:99px;
  width:fit-content;box-shadow:var(--shadow-sm);
}
.tabs button{
  background:transparent;border:0;padding:8px 18px;
  font-family:var(--font-body);font-size:.84rem;font-weight:500;
  cursor:pointer;color:var(--ink);border-radius:99px;transition:all .2s;
}
.tabs button:hover{color:var(--primary-deep)}
.tabs button.is-active{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;box-shadow:0 4px 12px -4px rgba(30,143,189,.5);border-color:transparent;
}

/* ============================================================
   DASHBOARD
   ============================================================ */
.dash-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:40px}
@media (max-width:900px){.dash-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:500px){.dash-grid{grid-template-columns:1fr}}
.dash-card{
  background:var(--paper-2);
  border:1px solid var(--line-blue);
  padding:24px;border-radius:var(--radius-lg);
  position:relative;overflow:hidden;transition:all .3s;
}
.dash-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--primary-2)}
.dash-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--primary-2),var(--primary));
  transform-origin:left;transform:scaleX(0);transition:transform .4s;
}
.dash-card:hover::before{transform:scaleX(1)}
.dash-card .label{font-size:.7rem;text-transform:uppercase;letter-spacing:.12em;color:var(--ink-soft);font-weight:600}
.dash-card .value{font-family:var(--font-display);font-size:2.3rem;display:block;margin:8px 0;line-height:1;color:var(--primary-deep);font-weight:500}
.dash-card .meta{font-size:.82rem;color:var(--ink-soft)}
.dash-card.accent{background:linear-gradient(135deg,var(--primary-deep),var(--primary-darker));color:#fff;border-color:transparent}
.dash-card.accent .value{color:var(--primary-2)}
.dash-card.accent .label,.dash-card.accent .meta{color:rgba(255,255,255,.75)}

/* ============================================================
   FORMULAIRE — avec CORRECTIF chevauchement mobile
   ============================================================ */
.form-shell{
  display:grid;grid-template-columns:280px minmax(0,1fr);
  gap:40px;align-items:flex-start;
}
/* FIX : sur mobile le panneau d'étapes redevient statique et ne recouvre plus le formulaire */
@media (max-width:900px){
  .form-shell{grid-template-columns:1fr;gap:20px}
  .stepper{position:static !important}
}

.stepper{
  background:var(--paper-2);
  border:1px solid var(--line-blue);
  border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-sm);
  position:sticky;top:140px;   /* sous le header sticky + topstrip */
  z-index:1;                    /* FIX : reste SOUS le header (z-index:50) et ne recouvre pas le contenu */
}
.stepper h4{margin-bottom:14px;font-size:.7rem;color:var(--ink-soft)}
.stepper-bar{height:4px;background:var(--paper-blue);border-radius:99px;margin-bottom:20px;overflow:hidden}
.stepper-bar-fill{height:100%;background:linear-gradient(90deg,var(--primary),var(--primary-2));border-radius:99px;transition:width .5s cubic-bezier(.2,.8,.2,1);width:16.66%}
.stepper ol{list-style:none;padding:0;margin:0}
.stepper li{
  padding:10px 0 10px 42px;
  border-left:0;margin-left:0;
  position:relative;font-size:.88rem;color:var(--ink-soft);
  cursor:pointer;transition:all .25s;
}
.stepper li::before{
  content:attr(data-step);
  position:absolute;left:0;top:8px;
  width:28px;height:28px;
  background:var(--paper-blue);border:2px solid var(--line-blue);
  display:grid;place-items:center;
  font-family:var(--font-mono);font-size:.7rem;font-weight:600;
  border-radius:50%;color:var(--ink-soft);transition:all .3s;
}
.stepper li.is-active{color:var(--ink);font-weight:600}
.stepper li.is-active::before{
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  border-color:var(--primary-deep);color:#fff;
  box-shadow:0 4px 12px -4px rgba(30,143,189,.5);transform:scale(1.1);
}
.stepper li.is-done::before{background:var(--accent);border-color:var(--accent);color:#fff;content:"✓"}
.stepper li:hover{color:var(--ink)}

.form-card{
  background:var(--paper-2);
  border:1px solid var(--line-blue);
  padding:40px;border-radius:var(--radius-xl);
  box-shadow:var(--shadow);
  min-width:0;               /* FIX : empêche le débordement de la grille */
  position:relative;z-index:0;
}
@media (max-width:600px){.form-card{padding:22px}}
.form-step{display:none;animation:slideIn .4s ease both}
.form-step.is-active{display:block}
@keyframes slideIn{from{opacity:0;transform:translateY(15px)}to{opacity:1;transform:translateY(0)}}
.form-step-head{display:flex;align-items:baseline;gap:16px;margin-bottom:6px}
.form-step-num{font-family:var(--font-mono);font-size:.78rem;color:var(--accent);letter-spacing:.14em;font-weight:600}
.form-step h2{font-size:1.6rem;margin:0 0 6px}
.form-step .step-intro{margin-bottom:26px;color:var(--ink-soft);font-size:.95rem}

.field{margin-bottom:18px;min-width:0}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-bottom:0}
@media (max-width:600px){.field-row{grid-template-columns:1fr}}
.field label{
  display:block;position:static;   /* FIX : les libellés ne flottent jamais au-dessus des champs */
  font-size:.82rem;font-weight:600;
  margin-bottom:6px;color:var(--ink);
  line-height:1.4;
}
.field label .req{color:var(--accent)}
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="url"],
.field input[type="number"],
.field input[type="password"],
.field select,
.field textarea{
  width:100%;max-width:100%;       /* FIX : jamais plus large que la colonne */
  padding:13px 16px;
  font-family:var(--font-body);font-size:.94rem;
  border:1.5px solid var(--line-blue);
  background:#fff;color:var(--ink);
  border-radius:10px;
  transition:border-color .25s, box-shadow .25s;
  line-height:1.4;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--primary-2);
  box-shadow:0 0 0 4px rgba(52,182,232,.15);
}
.field textarea{min-height:100px;resize:vertical}
.field .help{font-size:.8rem;color:var(--ink-soft);margin-top:6px}

.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
@media (max-width:600px){.check-grid{grid-template-columns:1fr}}
.check{
  display:flex;align-items:flex-start;gap:10px;
  padding:12px 14px;
  border:1.5px solid var(--line-blue);
  background:var(--paper-2);border-radius:10px;
  cursor:pointer;transition:all .25s;
}
.check:hover{border-color:var(--primary-2);background:var(--paper-blue)}
.check input{margin-top:3px;flex-shrink:0;accent-color:var(--primary-deep)}
.check span{font-size:.9rem;line-height:1.35}
.check:has(input:checked){border-color:var(--primary-deep);background:rgba(52,182,232,.08)}

.upload-zone{
  border:2.5px dashed var(--line-blue);
  background:var(--paper-blue);
  padding:34px;text-align:center;
  border-radius:var(--radius-lg);
  cursor:pointer;transition:all .3s;
  display:block;
}
.upload-zone:hover{border-color:var(--primary-2);transform:scale(1.01)}
.upload-zone .uz-icon{font-size:2.4rem;color:var(--primary-deep);margin-bottom:8px;display:block;animation:bob 3s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(-6px)}}
.upload-zone .uz-title{font-weight:700;margin-bottom:4px;color:var(--ink)}
.upload-zone .uz-help{font-size:.85rem;color:var(--ink-soft)}
.upload-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.upload-list .file{
  display:flex;justify-content:space-between;align-items:center;
  padding:10px 14px;background:var(--paper-blue);
  border:1px solid var(--line-blue);border-radius:10px;font-size:.88rem;
}

.form-nav{
  display:flex;justify-content:space-between;gap:12px;
  margin-top:36px;padding-top:22px;
  border-top:1px solid var(--line-blue);
}
.form-nav .btn-back{visibility:hidden}
.form-step.is-first .btn-back{visibility:hidden}

.success-screen{display:none;text-align:center;padding:44px 20px;animation:zoomIn .5s cubic-bezier(.2,.8,.2,1) both}
.success-screen.is-active{display:block}
@keyframes zoomIn{from{opacity:0;transform:scale(.9)}to{opacity:1;transform:scale(1)}}
.success-icon{
  width:92px;height:92px;border-radius:50%;
  background:linear-gradient(135deg,var(--success),#178A66);
  color:#fff;display:grid;place-items:center;
  font-size:2.8rem;margin:0 auto 22px;
  box-shadow:0 16px 40px -10px rgba(31,166,125,.5);
  animation:popIn .6s cubic-bezier(.2,1.6,.5,1) both;
}
@keyframes popIn{from{transform:scale(0) rotate(-180deg)}to{transform:scale(1) rotate(0)}}
.success-screen h2{font-size:2rem}
.ref-code{
  display:inline-block;margin-top:16px;
  font-family:var(--font-mono);font-size:1.05rem;
  padding:12px 22px;
  background:linear-gradient(135deg,var(--primary-darkest),var(--primary-darker));
  color:var(--primary-2);letter-spacing:.06em;border-radius:99px;
  box-shadow:0 8px 20px -6px rgba(15,42,61,.3);
}

/* ============================================================
   CITATION + CTA
   ============================================================ */
.quote{
  font-family:var(--font-display);font-style:italic;
  font-size:clamp(1.35rem,3vw,1.9rem);line-height:1.35;
  color:var(--primary-deep);
  padding:36px 0;text-align:center;
  border-top:0;border-bottom:0;
  max-width:820px;margin:0 auto;position:relative;
}
.quote::before{content:"« ";color:var(--accent)}
.quote::after{content:" »";color:var(--accent)}

.cta-block{
  background:linear-gradient(135deg,var(--primary-deep),var(--primary-darker));
  border-radius:var(--radius-xl);padding:44px;color:#fff;
  position:relative;overflow:hidden;margin-top:44px;
}
.cta-block::before{
  content:"";position:absolute;top:-50%;right:-20%;width:60%;height:200%;
  background:radial-gradient(ellipse,rgba(52,182,232,.4),transparent 60%);pointer-events:none;
}
.cta-block h3{color:#fff;font-size:1.7rem;margin-bottom:10px;position:relative}
.cta-block p{color:rgba(255,255,255,.78);max-width:520px;margin-bottom:22px;position:relative}
.cta-block .btn{position:relative}

/* ============================================================
   FOOTER (dégradé bleu)
   ============================================================ */
.site-footer{
  background:linear-gradient(180deg,var(--primary-darker),var(--primary-darkest));
  color:#fff;padding:72px 0 24px;margin-top:72px;
  position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:-40%;left:-10%;width:50%;height:80%;
  background:radial-gradient(ellipse,rgba(52,182,232,.2),transparent 60%);pointer-events:none;
}
.site-footer::after{
  content:"";position:absolute;bottom:-40%;right:-10%;width:50%;height:80%;
  background:radial-gradient(ellipse,rgba(245,158,43,.1),transparent 60%);pointer-events:none;
}
.site-footer .brand-mark{filter:brightness(0) invert(1)}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:44px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
  position:relative;
}
@media (max-width:800px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:500px){.footer-grid{grid-template-columns:1fr}}
.footer-grid h4{color:var(--primary-2);font-size:.78rem;letter-spacing:.14em;margin-bottom:14px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid li{margin-bottom:10px;font-size:.9rem;color:rgba(255,255,255,.78)}
.footer-grid a{color:rgba(255,255,255,.78)}
.footer-grid a:hover{color:var(--primary-2)}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  padding-top:22px;font-size:.78rem;color:rgba(255,255,255,.55);
  flex-wrap:wrap;gap:10px;position:relative;
}

/* ============================================================
   UTILITAIRES + ANIMATIONS
   ============================================================ */
.text-center{text-align:center}
.mt-0{margin-top:0}
.mt-4{margin-top:32px}
.rule{height:1px;background:var(--line-blue);margin:28px 0;border:0}
.rule-accent{height:3px;width:60px;background:var(--accent);border:0;margin:0 0 24px;border-radius:99px}

@keyframes fadeUp{from{opacity:0;transform:translateY(20px)}to{opacity:1;transform:translateY(0)}}
.fade-up{animation:fadeUp .6s ease both}
.fade-up.d1{animation-delay:.1s}
.fade-up.d2{animation-delay:.2s}
.fade-up.d3{animation-delay:.3s}

/* Révélation au scroll (ajoutée par main.js) */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .8s ease, transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:translateY(0)}

/* Accessibilité : réduire les animations si demandé */
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.01ms !important}
}