:root {
  --navy: #061a2b;
  --navy-2: #0b2d46;
  --navy-3: #102f45;
  --green: #0a9f52;
  --green-2: #35c877;
  --green-soft: #e8f8ef;
  --ink: #0d1720;
  --muted: #62717d;
  --line: #dfe7eb;
  --soft: #f4f8f7;
  --white: #fff;
  --black: #050708;
  --container: 1180px;
  --header: 104px;
  --radius-lg: 30px;
  --radius-md: 20px;
  --shadow: 0 22px 70px rgba(6,26,43,.10);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #fff;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
body.menu-open { overflow: hidden; }
a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { font: inherit; }
.container { width: min(var(--container), calc(100% - 44px)); margin-inline: auto; }
.skip-link { position: absolute; left: 16px; top: -60px; z-index: 999; background: var(--navy); color: #fff; padding: 10px 14px; border-radius: 9px; }
.skip-link:focus { top: 14px; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(223,231,235,.9);
}
.nav-shell { min-height: var(--header); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.site-brand-group { display: flex; align-items: center; gap: 14px; flex: 0 0 auto; }
.site-logo { flex: 0 0 auto; display: flex; align-items: center; padding: 4px 0; }
.site-logo img { width: auto; max-width: 165px; height: 56px; object-fit: contain; object-position: left center; display: block; }
.partner-header-logo img { height: 46px; max-width: 135px; border-radius: 4px; object-fit: contain; display: block; }
.brand-separator { width: 1px; height: 32px; background: var(--line); display: block; flex: 0 0 1px; }
.desktop-nav { display: flex; align-items: center; gap: 24px; margin-left: auto; }
.nav-link { position: relative; font-weight: 650; font-size: .93rem; color: #304554; transition: color .2s ease; }
.nav-link:hover, .nav-link.active { color: var(--navy); }
.nav-link.active::after { content: ""; position: absolute; left: 0; right: 0; bottom: -13px; height: 2px; border-radius: 9px; background: var(--green); }
.nav-actions { display: flex; align-items: center; gap: 16px; }
.lang-switch { display: flex; gap: 6px; align-items: center; color: #9aa7af; font-weight: 700; font-size: .88rem; }
.lang-switch button { border: 0; background: transparent; padding: 0; cursor: pointer; color: #8a969d; }
.lang-switch button.active { color: var(--navy); text-decoration: underline; text-underline-offset: 4px; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 48px; padding: 0 20px; border-radius: 14px; border: 1px solid transparent; font-weight: 750; cursor: pointer; transition: transform .2s ease, box-shadow .2s ease, background .2s ease, border-color .2s ease; }
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--green); color: #fff; box-shadow: 0 12px 30px rgba(10,159,82,.20); }
.btn-primary:hover { background: #078945; box-shadow: 0 15px 36px rgba(10,159,82,.28); }
.btn-dark { background: var(--navy); color: #fff; }
.btn-dark:hover { background: var(--navy-2); }
.btn-outline { border-color: #cbd7dc; background: #fff; color: var(--navy); }
.btn-outline:hover { border-color: var(--green); }
.btn-light-outline { border-color: rgba(255,255,255,.28); background: rgba(255,255,255,.06); color: #fff; }
.btn-light-outline:hover { background: rgba(255,255,255,.16); border-color: rgba(255,255,255,.55); color: #fff; }
.btn-nav { min-height: 52px; padding-inline: 21px; }
.is-disabled { opacity: .58; cursor: not-allowed; pointer-events: none; box-shadow: none; }

.menu-toggle { display: none; width: 48px; height: 48px; border: 1px solid var(--line); background: #fff; border-radius: 12px; padding: 10px; cursor: pointer; }
.menu-toggle span { display: block; height: 2px; margin: 5px 0; background: var(--navy); border-radius: 10px; }
.mobile-nav { display: none; }

/* Home hero */
.home-hero {
  position: relative;
  overflow: hidden;
  background: var(--navy);
  color: #fff;
}
.home-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 80% 22%, rgba(53,200,119,.24), transparent 28%),
    radial-gradient(circle at 72% 78%, rgba(10,159,82,.13), transparent 27%),
    linear-gradient(115deg, rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(25deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size: auto, auto, 58px 58px, 58px 58px;
}
.home-hero::after {
  content: "";
  position: absolute;
  width: 520px;
  height: 520px;
  right: -180px;
  top: -230px;
  border: 1px solid rgba(255,255,255,.10);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(255,255,255,.018), 0 0 0 160px rgba(255,255,255,.012);
}
.home-hero-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1.15fr .85fr; gap: 50px; align-items: center; padding: 52px 0 28px; }

.hero-speakers-banner {
  position: relative;
  z-index: 2;
  padding: 8px 0 68px;
}
.hero-speakers-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  margin-bottom: 22px;
}
.hero-speakers-title {
  margin: 0;
  color: #fff !important;
  font-size: clamp(1.4rem, 2.5vw, 1.9rem);
  font-family: "Space Grotesk", Inter, sans-serif;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.hero-speakers-banner .speaker-card {
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.22);
}

.eyebrow { display: inline-flex; align-items: center; gap: 12px; color: #73e1a5; text-transform: uppercase; letter-spacing: .16em; font-size: .74rem; font-weight: 800; }
.eyebrow::before { content: ""; width: 42px; height: 1px; background: #73e1a5; }
.home-title { margin: 24px 0 22px; max-width: 790px; font-family: "Space Grotesk", Inter, sans-serif; font-size: clamp(3rem, 6vw, 5.8rem); line-height: .98; letter-spacing: -.05em; overflow-wrap: break-word; }
.home-title .accent { color: #56d58d; display: block; }
.home-lead { max-width: 720px; margin: 0; color: rgba(255,255,255,.76); font-size: 1.12rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 30px; }
.hero-actions .btn { min-height: 54px; }

.brand-visual {
  position: relative;
  min-height: 480px;
  display: grid;
  place-items: center;
  isolation: isolate;
}
.brand-glow {
  position: absolute;
  width: 330px;
  height: 330px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53,200,119,.20), rgba(10,159,82,.06) 48%, transparent 72%);
  filter: blur(4px);
  z-index: -2;
}
.brand-orbit {
  position: absolute;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 50%;
  z-index: -1;
}
.brand-orbit.orbit-a { width: 430px; height: 430px; }
.brand-orbit.orbit-b { width: 345px; height: 345px; border-color: rgba(53,200,119,.20); }
.brand-orbit.orbit-c { width: 530px; height: 290px; transform: rotate(28deg); border-style: dashed; border-color: rgba(255,255,255,.09); }
.hero-logo-stage {
  width: min(390px, 82%);
  padding: 30px 26px;
  border-radius: 30px;
  background: linear-gradient(145deg, rgba(255,255,255,.085), rgba(255,255,255,.025));
  border: 1px solid rgba(255,255,255,.16);
  box-shadow: 0 34px 90px rgba(0,0,0,.26);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
.hero-logo-stage img {
  width: 100%;
  height: auto;
  filter: drop-shadow(0 16px 32px rgba(0,0,0,.16));
}
.field-pill {
  position: absolute;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 13px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.15);
  background: rgba(6,26,43,.58);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: rgba(255,255,255,.90);
  font-size: .76rem;
  font-weight: 700;
  white-space: nowrap;
}
.field-pill span { width: 7px; height: 7px; border-radius: 50%; background: #5ddb96; box-shadow: 0 0 14px rgba(93,219,150,.75); }
.pill-1 { top: 38px; left: 10px; }
.pill-2 { bottom: 58px; left: -10px; }
.pill-3 { top: 92px; right: -8px; }
.pill-4 { bottom: 94px; right: 18px; }
.edition-chip {
  position: absolute;
  right: 44px;
  bottom: 6px;
  display: grid;
  gap: 2px;
  padding: 11px 14px;
  border-left: 2px solid #56d58d;
  background: rgba(6,26,43,.74);
  color: rgba(255,255,255,.72);
  font-size: .69rem;
  text-transform: uppercase;
  letter-spacing: .08em;
}
.edition-chip strong { color: #fff; font-size: .79rem; letter-spacing: .02em; text-transform: none; }

.home-snapshot { margin-top: -34px; position: relative; z-index: 4; }
.snapshot-card { display: grid; grid-template-columns: 1.1fr repeat(4, 1fr); gap: 0; border: 1px solid var(--line); border-radius: 22px; background: #fff; box-shadow: var(--shadow); overflow: hidden; }
.snapshot-card > div { padding: 22px 24px; border-right: 1px solid var(--line); }
.snapshot-card > div:last-child { border-right: 0; }
.snapshot-label strong { color: var(--navy); font-size: 1.05rem; }
.snapshot-item span { display: block; margin-bottom: 6px; color: #81909b; text-transform: uppercase; letter-spacing: .11em; font-size: .68rem; font-weight: 800; }
.snapshot-item strong { color: var(--navy); line-height: 1.35; font-size: .93rem; }

.section { padding: 88px 0; }
.section-soft { background: var(--soft); }
.section-dark { background: var(--navy); color: #fff; }
.section-head { max-width: 760px; margin-bottom: 34px; }
.section-eyebrow { display: inline-block; margin-bottom: 14px; color: var(--green); text-transform: uppercase; letter-spacing: .14em; font-weight: 800; font-size: .75rem; }
h1, h2, h3 { font-family: "Space Grotesk", Inter, sans-serif; }
h2 { margin: 0 0 16px; color: var(--navy); font-size: clamp(2.3rem, 4.6vw, 4.3rem); line-height: .98; letter-spacing: -.045em; }
.section-dark h2, .section-dark h3 { color: #fff; }
.section-lead { margin: 0; color: var(--muted); font-size: 1.05rem; max-width: 720px; }
.section-dark .section-lead { color: rgba(255,255,255,.72); }

.home-intro-grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 70px; align-items: start; }
.home-intro-grid p { margin: 0; font-size: 1.08rem; color: var(--muted); }

.link-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 38px; }
#scope, #speakers { scroll-margin-top: calc(var(--header) + 20px); }
.link-card { min-height: 208px; padding: 24px; border: 1px solid var(--line); border-radius: 22px; background: #fff; display: flex; flex-direction: column; transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease; }
.link-card:hover { transform: translateY(-5px); box-shadow: 0 20px 45px rgba(6,26,43,.08); border-color: #c4d9ce; }
.link-card h3 { margin: auto 0 8px; color: var(--navy); font-size: 1.25rem; }
.link-card p { margin: 0; color: var(--muted); font-size: .92rem; }
.link-arrow { width: 40px; height: 40px; border-radius: 50%; background: var(--green-soft); color: var(--green); display: grid; place-items: center; font-size: 1.1rem; }

.registration-band { padding: 56px 0; background: #050708; color: #fff; }
.registration-band-inner { display: grid; grid-template-columns: 1fr auto; gap: 34px; align-items: center; }
.registration-band h2 { color: #fff; font-size: clamp(2rem,4vw,3.4rem); margin-bottom: 10px; }
.registration-band p { margin: 0; color: rgba(255,255,255,.67); max-width: 720px; }

/* Internal pages */
.page-hero { position: relative; overflow: hidden; background: var(--navy); color: #fff; padding: 78px 0 72px; }
.page-hero::before { content: ""; position: absolute; inset: 0; background: radial-gradient(circle at 85% 35%, rgba(53,200,119,.18), transparent 26%), linear-gradient(120deg, rgba(255,255,255,.025) 1px, transparent 1px); background-size: auto, 56px 56px; }
.page-hero .container { position: relative; z-index: 1; }
.page-hero h1 { margin: 16px 0 18px; max-width: 930px; font-size: clamp(2.8rem,5.4vw,5.4rem); line-height: .98; letter-spacing: -.05em; overflow-wrap: break-word; }
.page-hero p { max-width: 780px; margin: 0; color: rgba(255,255,255,.74); font-size: 1.08rem; }
.page-hero .eyebrow { font-size: .72rem; }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 34px; }
.info-panel { border: 1px solid var(--line); border-radius: 24px; background: #fff; padding: 30px; }
.info-panel h3 { margin: 0 0 12px; color: var(--navy); font-size: 1.5rem; }
.info-panel p { margin: 0; color: var(--muted); }
.feature-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.feature-card { border: 1px solid var(--line); border-radius: 22px; padding: 28px; background: #fff; }
.feature-card .mini-mark { width: 12px; height: 12px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 8px var(--green-soft); margin-bottom: 24px; }
.feature-card h3 { margin: 0 0 10px; color: var(--navy); font-size: 1.35rem; }
.feature-card p { margin: 0; color: var(--muted); }

.scope-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.scope-card { position: relative; min-height: 235px; overflow: hidden; border: 1px solid var(--line); border-radius: 24px; background: #fff; padding: 26px; }
.scope-card::after { content: ""; position: absolute; width: 110px; height: 110px; right: -32px; top: -32px; border-radius: 50%; border: 1px solid #dff1e6; box-shadow: 0 0 0 26px #f6fbf8; }
.scope-icon { width: 44px; height: 44px; border-radius: 14px; background: var(--navy); color: #66dd99; display: grid; place-items: center; font-family: "Space Grotesk"; font-weight: 800; }
.scope-card h3 { margin: 48px 0 10px; color: var(--navy); font-size: 1.35rem; }
.scope-card p { margin: 0; color: var(--muted); font-size: .95rem; }

.programme-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 16px; }
.programme-card { border-top: 3px solid var(--green); background: #fff; border-radius: 0 0 22px 22px; padding: 26px; box-shadow: 0 12px 35px rgba(6,26,43,.06); }
.programme-card small { color: var(--green); text-transform: uppercase; letter-spacing: .12em; font-weight: 800; }
.programme-card h3 { margin: 28px 0 10px; color: var(--navy); font-size: 1.28rem; }
.programme-card p { margin: 0; color: var(--muted); }
.status-card { border: 1px solid rgba(255,255,255,.14); background: rgba(255,255,255,.07); border-radius: 24px; padding: 30px; }
.status-card strong { display: block; margin-bottom: 7px; font-size: 1.2rem; }
.status-card p { margin: 0; color: rgba(255,255,255,.70); }

.date-table { border: 1px solid var(--line); border-radius: 24px; overflow: hidden; }
.date-row { display: grid; grid-template-columns: 1fr auto; gap: 24px; padding: 20px 24px; background: #fff; border-bottom: 1px solid var(--line); }
.date-row:last-child { border-bottom: 0; }
.date-row strong { color: var(--navy); }
.date-row span:last-child { color: var(--muted); }

.steps { display: grid; grid-template-columns: repeat(3,1fr); gap: 18px; }
.step-card { position: relative; padding: 28px; border-radius: 24px; background: #fff; border: 1px solid var(--line); }
.step-dot { width: 46px; height: 46px; display: grid; place-items: center; border-radius: 50%; background: var(--green-soft); color: var(--green); font-weight: 900; }
.step-card h3 { color: var(--navy); margin: 28px 0 10px; }
.step-card p { color: var(--muted); margin: 0; }
.guideline-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 12px; }
.guideline-list li { position: relative; padding: 15px 16px 15px 48px; border: 1px solid var(--line); border-radius: 16px; background: #fff; }
.guideline-list li::before { content: "✓"; position: absolute; left: 17px; top: 14px; width: 22px; height: 22px; border-radius: 50%; background: var(--green-soft); color: var(--green); display: grid; place-items: center; font-weight: 900; }
.abstract-placeholder { min-height: 230px; border: 1px dashed #8fb7a1; border-radius: 24px; background: linear-gradient(145deg, #f8fcfa, #edf8f2); display: grid; place-items: center; text-align: center; padding: 30px; color: var(--navy); font-weight: 750; }

.practical-grid { display: grid; grid-template-columns: 1.2fr .8fr; gap: 22px; }
.venue-card { min-height: 330px; padding: 34px; border-radius: 26px; color: #fff; background: linear-gradient(140deg, #071c2d, #0b3344 62%, #0a5734); }
.venue-card span { color: #6bdfa0; text-transform: uppercase; letter-spacing: .12em; font-size: .75rem; font-weight: 800; }
.venue-card h3 { margin: 20px 0 12px; font-size: 2rem; }
.venue-card p { margin: 0; color: rgba(255,255,255,.72); }
.practical-stack { display: grid; gap: 18px; }

.contact-shell { display: grid; grid-template-columns: 1fr .85fr; gap: 38px; align-items: start; }
.contact-card { border: 1px solid var(--line); border-radius: 26px; padding: 30px; box-shadow: var(--shadow); }
.contact-card small { text-transform: uppercase; color: var(--green); letter-spacing: .12em; font-weight: 800; }
.contact-card a.email { display: block; margin: 14px 0 24px; color: var(--navy); font-size: clamp(1.25rem,3vw,2rem); font-family: "Space Grotesk"; font-weight: 700; word-break: break-word; }
.contact-card p { color: var(--muted); }

.registration-paths { display: grid; grid-template-columns: repeat(2,1fr); gap: 18px; }
.path-card { border: 1px solid var(--line); border-radius: 24px; padding: 28px; }
.path-card strong { display: inline-flex; align-items: center; gap: 9px; color: var(--navy); font-family: "Space Grotesk"; font-size: 1.35rem; }
.path-card strong::before { content: ""; width: 11px; height: 11px; border-radius: 50%; background: var(--green); }
.path-card p { color: var(--muted); margin-bottom: 0; }
.form-shell { border: 1px solid var(--line); border-radius: 28px; overflow: hidden; background: #fff; box-shadow: var(--shadow); }
.form-shell-header { padding: 28px 30px; border-bottom: 1px solid var(--line); display: flex; align-items: center; justify-content: space-between; gap: 20px; }
.form-shell-header h2 { font-size: 2rem; margin: 0; }
.form-placeholder { min-height: 360px; padding: 44px; display: grid; place-items: center; text-align: center; background: linear-gradient(145deg, #fbfdfc, #f0f9f4); }
.form-placeholder-inner { max-width: 650px; }
.form-placeholder-inner h3 { color: var(--navy); font-size: 1.55rem; margin-bottom: 10px; }
.form-placeholder-inner p { color: var(--muted); }
.form-iframe { width: 100%; min-height: 850px; border: 0; background: #fff; }
.code-note { margin-top: 16px; padding: 14px 16px; border-radius: 12px; background: #071c2d; color: #d9f7e5; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .83rem; text-align: left; overflow-wrap: anywhere; }

.site-footer { border-top: 1px solid var(--line); background: #fff; padding: 42px 0 22px; }
.footer-grid { display: grid; grid-template-columns: 1.3fr .75fr .75fr; gap: 38px; align-items: start; }
.footer-logo img { width: 140px; height: 70px; object-fit: contain; object-position: left; }
.footer-brand {
  max-width: 350px; color: var(--muted); font-size: .9rem; margin: 10px 0 0;
  display: flex;
  flex-direction: column;
  gap: 1px;
}
.footer-main-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.footer-secondary-logos {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 20px;
  flex-wrap: wrap;
}
.footer-secondary-logos .footer-logo {
  flex: 0 0 140px;
}
.footer-links { display: grid; gap: 10px; }
.footer-links a { color: #4d606d; font-size: .92rem; }
.footer-links a:hover { color: var(--green); }
.footer-bottom { margin-top: 34px; padding-top: 18px; border-top: 1px solid var(--line); display: flex; justify-content: space-between; color: #8a979e; font-size: .8rem; }

@media (max-width: 1080px) {
  .desktop-nav { gap: 18px; }
  .nav-link { font-size: .88rem; }
  .home-hero-inner { grid-template-columns: 1fr .7fr; gap: 30px; }
  .snapshot-card { grid-template-columns: repeat(2,1fr); }
  .snapshot-card > div { border-bottom: 1px solid var(--line); }
  .snapshot-card > div:nth-last-child(-n+2) { border-bottom: 0; }
  .snapshot-card > div:nth-child(even) { border-right: 0; }
  .snapshot-label { grid-column: 1 / -1; border-right: 0 !important; }
  .scope-grid { grid-template-columns: repeat(2,1fr); }
  .programme-grid { grid-template-columns: repeat(2,1fr); }
}

@media (max-width: 980px) {
  .desktop-nav, .btn-nav { display: none; }
  .menu-toggle { display: block; }
  .site-brand-group { gap: 12px; }
  .site-logo img { width: auto; max-width: 140px; height: 48px; }
  .partner-header-logo img { height: 40px; max-width: 110px; }
  .brand-separator { height: 26px; }
  .mobile-nav { position: fixed; left: 0; right: 0; top: var(--header); height: calc(100vh - var(--header)); display: block; background: rgba(255,255,255,.98); transform: translateY(-110%); opacity: 0; pointer-events: none; transition: .25s ease; border-top: 1px solid var(--line); }
  .mobile-nav.open { transform: translateY(0); opacity: 1; pointer-events: auto; }
  .mobile-nav-inner { padding: 28px 0; display: grid; gap: 6px; }
  .mobile-nav .nav-link { padding: 13px 2px; font-size: 1.05rem; }
  .mobile-nav .nav-link.active::after { display: none; }
  .mobile-nav .btn { margin-top: 14px; }
  .home-hero-inner { grid-template-columns: 1fr; padding: 44px 0 24px; }
  .brand-visual { min-height: 440px; max-width: 560px; width: 100%; margin-inline: auto; }
  .home-title { font-size: clamp(4rem,13vw,6.8rem); }
  .home-intro-grid, .contact-shell, .practical-grid { grid-template-columns: 1fr; }
  .link-card-grid { grid-template-columns: repeat(2,1fr); }
  .registration-band-inner { grid-template-columns: 1fr; }
  .feature-grid, .two-col { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  /*.footer-brand { grid-column: 1 / -1; }*/
  .footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0px; /* Espace entre le bloc JC2B et la ligne des autres logos */
  }
}

@media (max-width: 640px) {
  :root { --header: 88px; }
  .container { width: min(var(--container), calc(100% - 28px)); }
  .site-brand-group { gap: 8px; }
  .site-logo img { width: auto; max-width: 105px; height: 38px; }
  .partner-header-logo img { height: 32px; max-width: 85px; }
  .brand-separator { height: 22px; }
  .lang-switch { display: none; }
  .home-hero, .home-hero-inner { min-height: auto; }
  .home-hero-inner { padding: 38px 0 20px; }
  .hero-speakers-head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .hero-speakers-banner { padding: 4px 0 54px; }
  .home-title { font-size: clamp(3.4rem,17vw,5.1rem); }
  .home-lead { font-size: 1rem; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn { width: 100%; }
  .brand-visual { min-height: 360px; transform: scale(.92); margin-block: -10px -16px; }
  .hero-logo-stage { width: min(330px, 82%); padding: 24px 20px; }
  .field-pill { font-size: .70rem; padding: 8px 10px; }
  .pill-1 { top: 22px; left: 6px; }
  .pill-2 { bottom: 42px; left: 0; }
  .pill-3 { top: 70px; right: 0; }
  .pill-4 { bottom: 70px; right: 4px; }
  .edition-chip { right: 18px; bottom: 0; }
  .home-snapshot { margin-top: -46px; }
  .snapshot-card { grid-template-columns: 1fr; }
  .snapshot-card > div, .snapshot-card > div:nth-child(even) { border-right: 0; border-bottom: 1px solid var(--line); }
  .snapshot-card > div:last-child { border-bottom: 0; }
  .snapshot-label { grid-column: auto; }
  .section { padding: 68px 0; }
  .page-hero { padding: 60px 0 58px; }
  .page-hero h1 { font-size: clamp(3rem,14vw,4.8rem); }
  .link-card-grid, .scope-grid, .programme-grid, .registration-paths { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  /*.footer-brand { grid-column: auto; }*/
  .footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0px; /* Espace entre le bloc JC2B et la ligne des autres logos */
  }
  .footer-bottom { flex-direction: column; gap: 6px; }
  .form-shell-header { align-items: flex-start; flex-direction: column; }
  .form-placeholder { padding: 28px 20px; min-height: 330px; }
}

/* ==========================================================================
   Interactive Registration Form & Capacity Feedback
   (Adapted to Site Design Tokens)
   ========================================================================== */

/* 199-Attendee Capacity Notice */
.notice-card {
  display: flex;
  gap: 16px;
  background-color: #fff9eb;
  border-left: 4px solid #d9822b;
  border-radius: var(--radius-md);
  padding: 20px 24px;
  margin-bottom: 28px;
  box-shadow: 0 4px 16px rgba(6, 26, 43, 0.04);
}

.notice-icon {
  font-size: 1.6rem;
  line-height: 1;
}

.notice-body h2 {
  font-size: 1.15rem;
  color: #8f4b00;
  margin: 0 0 6px 0;
  font-family: "Space Grotesk", Inter, sans-serif;
}

.notice-body p {
  color: #4a5568;
  font-size: 0.94rem;
  margin: 0 0 4px 0;
}

.notice-body .notice-sub {
  font-size: 0.85rem;
  color: #718096;
  margin-bottom: 0;
}

/* Form Container & Sections */
.form-wrapper {
  padding: 10px 30px 30px;
}

.form-section {
  border: none;
  margin-bottom: 32px;
  padding: 0 0 24px 0;
  border-bottom: 1px solid var(--line);
}

.form-section:last-of-type {
  border-bottom: none;
  margin-bottom: 12px;
}

.form-section legend {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 16px;
}

/* Inputs, Selects & Labels */
.form-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
}

.form-group label {
  font-weight: 650;
  margin-bottom: 6px;
  color: var(--ink);
  font-size: 0.92rem;
}

.form-group .req {
  color: #d9381e;
}

.form-group small {
  color: var(--muted);
  font-size: 0.82rem;
  margin-top: 4px;
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group select,
textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 12px;
  font-family: inherit;
  font-size: 0.96rem;
  color: var(--ink);
  background-color: #fff;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea {
  resize: vertical;
}

.form-group input:focus,
.form-group select:focus,
textarea:focus {
  outline: none;
  border-color: var(--green);
  box-shadow: 0 0 0 3px rgba(10, 159, 82, 0.15);
}

/* 2-Column Responsive Form Grid */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

@media (max-width: 640px) {
  .form-grid {
    grid-template-columns: 1fr;
  }
}

/* Checkbox Customization */
.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-top: 14px;
}

.checkbox-group input {
  margin-top: 4px;
  accent-color: var(--green);
  cursor: pointer;
  width: 17px;
  height: 17px;
}

.checkbox-group label {
  font-weight: normal;
  font-size: 0.92rem;
  color: var(--muted);
  cursor: pointer;
  line-height: 1.45;
}

/* Informational Banners */
.info-callout {
  background-color: #f0f7ff;
  border-left: 4px solid #0066cc;
  padding: 12px 16px;
  border-radius: 10px;
  margin-bottom: 20px;
}

.info-callout p {
  margin: 0;
  font-size: 0.86rem;
  color: #1a4971;
  line-height: 1.45;
}

.abstract-alert {
  background-color: #fffbeb;
  border: 1px solid #fef08a;
  border-radius: 10px;
  padding: 12px 16px;
  margin-bottom: 18px;
}

.abstract-alert p {
  margin: 0;
  font-size: 0.86rem;
  color: #854d0e;
  line-height: 1.45;
}

/* Conditional Abstract Block */
.conditional-block {
  margin-top: 16px;
  padding: 20px;
  background-color: var(--soft);
  border: 1px solid var(--line);
  border-radius: 16px;
}

.conditional-block.hidden {
  display: none;
}

.char-counter {
  text-align: right;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 5px;
}

/* Dynamic Submission Feedback Banners */
.feedback-banner {
  padding: 18px 22px;
  border-radius: 16px;
  margin-top: 18px;
}

.feedback-banner.hidden {
  display: none;
}

.feedback-banner h3 {
  margin: 0 0 6px 0;
  font-size: 1.2rem;
  font-family: "Space Grotesk", Inter, sans-serif;
}

.feedback-banner p {
  margin: 0 0 4px 0;
  font-size: 0.94rem;
}

.feedback-banner.success {
  background-color: var(--green-soft);
  border: 1px solid rgba(10, 159, 82, 0.3);
  color: #086334;
}

.feedback-banner.warning {
  background-color: #fffbeb;
  border: 1px solid #fcd34d;
  color: #92400e;
}

.feedback-banner.error {
  background-color: #fef2f2;
  border: 1px solid #fca5a5;
  color: #991b1b;
}

/* ==========================================================================
   Keynote Speakers Section
   ========================================================================== */
.section-head-split {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  margin-bottom: 34px;
}

.speakers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
  align-items: stretch;
}

.speaker-card {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 30px 26px;
  display: flex;
  flex-direction: row;
  gap: 22px;
  align-items: flex-start;
  box-shadow: 0 12px 35px rgba(6, 26, 43, 0.05);
  transition: transform 0.22s ease, box-shadow 0.22s ease, border-color 0.22s ease;
}

.speaker-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 45px rgba(6, 26, 43, 0.08);
  border-color: #c4d9ce;
}

.speaker-image-wrapper {
  width: 130px;
  height: 130px;
  min-width: 130px;
  max-width: 130px;
  min-height: 130px;
  max-height: 130px;
  flex: 0 0 130px;
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--line);
  box-shadow: 0 4px 16px rgba(6, 26, 43, 0.08);
  background: var(--soft);
}

.speaker-photo {
  width: 130px !important;
  height: 130px !important;
  min-width: 130px !important;
  max-width: 130px !important;
  min-height: 130px !important;
  max-height: 130px !important;
  border-radius: 50%;
  object-fit: cover !important;
  display: block;
}

.speaker-info {
  flex: 1 1 auto;
  min-width: 0;
}

.speaker-badge {
  display: inline-block;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  font-weight: 800;
  margin-bottom: 6px;
}

.speaker-name {
  margin: 0 0 4px;
  color: var(--navy);
  font-size: 1.3rem;
  font-family: "Space Grotesk", Inter, sans-serif;
  font-weight: 700;
  line-height: 1.25;
}

.speaker-institution {
  color: var(--green);
  font-weight: 650;
  font-size: 0.94rem;
  margin: 0;
  line-height: 1.4;
}

.speaker-referral-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  color: var(--green);
  font-weight: 650;
  font-size: 0.92rem;
  transition: color 0.2s ease, transform 0.2s ease;
}

.speaker-referral-link:hover {
  color: var(--navy);
  transform: translateX(4px);
}

.speaker-topic-box {
  margin-top: 12px;
  padding: 10px 14px;
  border-radius: 12px;
  background: var(--soft);
  border: 1px solid var(--line);
  font-size: 0.9rem;
}

.topic-label {
  font-weight: 700;
  color: var(--navy);
  margin-right: 6px;
}

.topic-title {
  color: var(--navy);
  font-style: bold;
}

.speaker-bio {
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
}

@media (max-width: 640px) {
  .section-head-split {
    flex-direction: column;
    align-items: flex-start;
  }

  .speakers-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .speaker-card {
    flex-direction: column;
    text-align: center;
    padding: 26px 20px;
  }

  .speaker-image-wrapper {
    margin-inline: auto;
  }

  .speaker-referral-link {
    justify-content: center;
  }
}

/* Garder le choix de langue visible sur mobile */
@media (max-width: 980px) {
  .nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
  }

  .nav-actions .lang-switch {
    display: flex !important;
    align-items: center;
    gap: 4px;
    visibility: visible;
    opacity: 1;
  }

  .lang-switch button {
    min-width: 36px;
    min-height: 44px;
    padding: 4px;
    font-size: 14px;
    cursor: pointer;
  }

  /* L'inscription reste accessible dans le menu mobile */
  .nav-actions .btn-nav {
    display: none;
  }
}

/* Logo Paris-Saclay : plus lisible dans le header */
.site-logo.partner-header-logo img {
  width: 170px;
  height: 70px;
  max-width: none;
  object-fit: cover;
  object-position: center;
}

@media (max-width: 980px) {
  .site-logo.partner-header-logo img {
    width: 140px;
    height: 58px;
  }
}

@media (max-width: 640px) {
  .site-logo.partner-header-logo img {
    width: 110px;
    height: 46px;
  }

  /* Laisser la place au logo, aux langues et au menu */
  .site-brand-group {
    gap: 6px;
  }

  .site-logo:not(.partner-header-logo) img {
    max-width: 72px;
    height: 34px;
  }

  .nav-shell {
    gap: 8px;
    flex-wrap: wrap;
  }

  .nav-actions {
    gap: 6px;
  }

  .lang-switch button {
    min-width: 28px;
  }

  .menu-toggle {
    width: 40px;
    height: 44px;
  }
}

/* Accueil plus compact */
.home-hero-inner {
  padding-top: 24px;
  padding-bottom: 20px;
  gap: 28px;
}

.home-title {
  font-size: clamp(2rem, 3.5vw, 3rem);
  line-height: 1.08;
  margin: 14px 0;
}

.home-lead {
  font-size: 1rem;
  line-height: 1.5;
}

.hero-actions {
  margin-top: 18px;
}

.brand-visual {
  min-height: 320px;
}

.hero-logo-stage {
  width: min(280px, 80%);
  padding: 18px;
}

.hero-speakers-head {
  margin-bottom: 14px;
}

.hero-speakers-banner .speaker-card {
  padding: 18px;
  gap: 16px;
}

/* Sur tablette et mobile, on évite le grand visuel
   entre l’introduction et les intervenants */
@media (max-width: 980px) {
  .home-hero-inner {
    grid-template-columns: 1fr;
  }

  .home-hero-inner .brand-visual {
    display: none;
  }

  .home-title {
    font-size: clamp(2rem, 6vw, 3rem);
  }
}

.venue-map {
  display: block;
  width: 100%;
  height: 300px;
  margin: 22px 0 18px;
  border: 0;
  border-radius: 16px;
  background: #fff;
}

@media (max-width: 640px) {
  .venue-card {
    padding: 22px;
  }

  .venue-map {
    height: 250px;
  }
}
/* Agrandir ces deux logos sans déplacer les autres (: */
.footer-secondary-logos img[src*="paris-saclay-university1609"] {
  transform: scale(1.3);
  transform-origin: left center;
}

.footer-secondary-logos img[src*="logo-living-machine-at-work1"] {
  transform: scale(1.3);
  transform-origin: center;
}

.venue-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  color: var(--navy);
}

.venue-link svg {
  flex-shrink: 0;
  color: var(--green);
  transition: transform 0.2s ease;
}

.venue-link:hover strong {
  text-decoration: underline;
  text-underline-offset: 4px;
}

.venue-link:hover svg {
  transform: translateX(4px);
}

.venue-link:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 4px;
  border-radius: 4px;
}