:root {
  --yel-crimson: #ff1770;
  --yel-red: #ec3043;
  --yel-wine: #3b0a23;
  --yel-gold-soft: #ffd1e1;
  --yel-ivory: #fff9fc;
  --yel-ink: #29101d;
  --yel-paper: #fff0f6;
  --yel-line: rgba(255, 23, 112, .19);
  --yel-shadow: 0 20px 48px rgba(59, 10, 35, .12);
  --ease-yeleen: cubic-bezier(.23, 1, .32, 1);
}

body,
body.mode-clair {
  --bg: var(--yel-ivory) !important;
  --bg2: #ffffff !important;
  --or: var(--yel-crimson) !important;
  --bordeaux: var(--yel-wine) !important;
  --texte: var(--yel-ink) !important;
  --texte2: #765466 !important;
  background: var(--yel-ivory) !important;
  color: var(--yel-ink) !important;
  font-family: 'Manrope', sans-serif !important;
}

body:not(.mode-clair) {
  --bg: #1c0614 !important;
  --bg2: #260e20 !important;
  --or: #ff5a9d !important;
  --bordeaux: #1c0614 !important;
  --texte: #fff8fc !important;
  --texte2: #d5b6c7 !important;
}

h1, h2, h3, h4 { font-family: 'Manrope', sans-serif !important; }
button, input, textarea, select { font-family: 'Manrope', sans-serif; }

html, body { overflow-x: hidden; }
img, svg, video { max-width: 100%; }

.yel-page { overflow: clip; }
.yel-kicker { display: inline-flex; align-items: center; gap: .72rem; color: var(--yel-red); font-size: .71rem; font-weight: 800; letter-spacing: .14em; text-transform: uppercase; }
.yel-kicker::before { content: ''; width: 2.7rem; height: 1px; background: currentColor; }
.yel-title { color: var(--yel-ink); font-family: 'Manrope', sans-serif !important; font-size: clamp(2.25rem, 5vw, 4.8rem); font-weight: 800; letter-spacing: -.065em; line-height: 1.02; margin: .85rem 0 1.35rem; }
.yel-title em { color: var(--yel-crimson); font-family: 'Manrope', sans-serif !important; font-weight: 700; letter-spacing: -.05em; }
.yel-copy { color: #765466; font-size: 1rem; line-height: 1.72; max-width: 38rem; }
.yel-section { padding: clamp(4.7rem, 9vw, 8.5rem) 1.5rem; }
.yel-section-inner { width: min(1120px, 100%); margin: 0 auto; }
.yel-section-pink { background: var(--yel-paper); }
.yel-section-wine { background: var(--yel-wine); color: white; }
.yel-section-wine .yel-kicker { color: #ff9dc4; }
.yel-section-wine .yel-title, .yel-section-wine .yel-copy { color: white; }

.yel-nav, nav { background: rgba(255, 249, 252, .9) !important; border-bottom: 1px solid var(--yel-line) !important; box-shadow: 0 8px 24px rgba(59, 10, 35, .04); }
body:not(.mode-clair) .yel-nav, body:not(.mode-clair) nav { background: rgba(28, 6, 20, .9) !important; }
.yel-nav a, nav a { color: var(--yel-ink) !important; border-radius: 999px !important; }
body:not(.mode-clair) .yel-nav a, body:not(.mode-clair) nav a { color: #fff8fc !important; }
.yel-nav a[style*="font-weight:600"] { color: var(--yel-crimson) !important; background: rgba(255, 23, 112, .08) !important; }

.btn-or, .yel-btn-primary { background: var(--yel-crimson) !important; color: #fff !important; border: 1px solid var(--yel-crimson) !important; border-radius: 999px !important; box-shadow: 0 9px 20px rgba(255, 23, 112, .24) !important; font-family: 'Manrope', sans-serif !important; font-weight: 800 !important; letter-spacing: .01em !important; min-height: 3.35rem; transition: transform .18s var(--ease-yeleen), box-shadow .18s var(--ease-yeleen), background .18s var(--ease-yeleen) !important; }
.btn-or:hover, .yel-btn-primary:hover { background: #f70a66 !important; transform: translateY(-2px); box-shadow: 0 15px 30px rgba(255, 23, 112, .34) !important; }
.btn-or:active, .yel-btn-primary:active { transform: scale(.97) !important; }
.btn-contour, .yel-btn-link { border: 0 !important; border-radius: 0 !important; background: transparent !important; color: var(--yel-crimson) !important; box-shadow: none !important; padding-left: 0 !important; padding-right: 0 !important; text-decoration: underline !important; text-decoration-thickness: 1px !important; text-underline-offset: .28rem; }

.carte, .carte-or, .modal-content { background: #fff !important; border: 1px solid var(--yel-line) !important; border-radius: 1rem !important; box-shadow: var(--yel-shadow); }
body:not(.mode-clair) .carte, body:not(.mode-clair) .carte-or, body:not(.mode-clair) .modal-content { background: #260e20 !important; }
.input-yeleen { background: #fff9fc !important; border: 1px solid rgba(59, 10, 35, .15) !important; border-radius: .75rem !important; color: var(--yel-ink) !important; min-height: 3rem; }
.input-yeleen:focus { border-color: var(--yel-crimson) !important; box-shadow: 0 0 0 3px rgba(255, 23, 112, .13) !important; }

.hero-gradient { background: linear-gradient(145deg, #fff8fb 0%, #fff1f6 68%, #ffdce9 100%) !important; position: relative; }
.hero-gradient::before { content: ''; position: absolute; inset: 0; pointer-events: none; opacity: .45; background-image: radial-gradient(rgba(255, 23, 112, .28) 1px, transparent 1px); background-size: 17px 17px; mask-image: linear-gradient(90deg, black, transparent 66%); }
.enveloppe-corps { background: #ffdfec !important; border-color: rgba(255, 23, 112, .35) !important; box-shadow: 0 22px 55px rgba(236, 48, 67, .22); }
.enveloppe-rabat { background: linear-gradient(135deg, #ff4f8a, #ec3043) !important; border-color: rgba(255,255,255,.4) !important; }
.lettre-card { background: #fff9fc !important; color: var(--yel-ink) !important; }
.shimmer-or { background: linear-gradient(90deg, #ff1770 15%, #ec3043 52%, #ff1770 86%) !important; background-size: 200% 100% !important; }
.badge-nouveau, .badge-plan { background: var(--yel-gold-soft) !important; color: #b4094c !important; border-radius: 999px !important; font-weight: 800 !important; }
.sep-or { background: linear-gradient(90deg, transparent, var(--yel-red), transparent) !important; }

.yel-hero { display: grid; grid-template-columns: .95fr 1.05fr; align-items: center; gap: clamp(2.3rem, 6vw, 7rem); min-height: clamp(39rem, 85vh, 52rem); text-align: left; }
.yel-hero-visual { min-height: 30rem; display: grid; place-items: center; position: relative; }
.yel-hero-halo { width: min(31rem, 88vw); aspect-ratio: 1; border-radius: 50%; background: radial-gradient(circle, #ffb8d4 0%, #ff80b3 32%, #ff2c7b 63%, #e61945 100%); box-shadow: 0 24px 60px rgba(236, 48, 67, .28); }
.yel-invite-stack { position: absolute; inset: 12% 8%; }
.yel-invite-card { position: absolute; width: 58%; aspect-ratio: .68; padding: 1.25rem; border-radius: 1.05rem; background: #fff9fc; border: 1px solid rgba(255,255,255,.8); box-shadow: 0 25px 45px rgba(59, 10, 35, .22); color: var(--yel-wine); }
.yel-invite-card::after { content: ''; position: absolute; inset: .6rem; border: 1px solid rgba(255, 23, 112, .32); border-radius: .75rem; }
.yel-invite-card:first-child { left: 2%; top: 15%; transform: rotate(-8deg); }
.yel-invite-card:last-child { right: 2%; top: 7%; transform: rotate(9deg); background: #ff3b7e; color: white; }
.yel-invite-card strong { position: relative; z-index: 1; display: block; margin-top: 46%; font-family: 'Manrope', sans-serif; font-size: clamp(1.45rem, 3vw, 2.2rem); font-weight: 800; letter-spacing: -.06em; line-height: .95; }
.yel-float-pill { position: absolute; right: 0; bottom: 12%; z-index: 2; padding: .8rem 1rem; border-radius: 999px; background: #fff; color: var(--yel-wine); box-shadow: 0 12px 25px rgba(59, 10, 35, .16); font-weight: 800; font-size: .78rem; }
.yel-proof { display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; margin-top: 1.65rem; color: var(--yel-ink); font-size: .86rem; font-weight: 700; }
.yel-proof span::before { content: '✓'; color: var(--yel-red); margin-right: .45rem; }

.yel-rail { display: flex; align-items: stretch; gap: 1rem; overflow-x: auto; padding: 1.5rem .3rem 2rem; scroll-snap-type: x mandatory; scrollbar-width: none; }
.yel-rail::-webkit-scrollbar { display: none; }
.yel-model-card { min-width: 13.5rem; height: 22.5rem; position: relative; overflow: hidden; border-radius: .85rem; background: linear-gradient(155deg, #ff9fc5, #a80b45); scroll-snap-align: start; color: white; box-shadow: 0 16px 34px rgba(59,10,35,.16); transform: scale(.94); opacity: .72; transition: transform .32s var(--ease-yeleen), opacity .22s var(--ease-yeleen); }
.yel-model-card:hover, .yel-model-card.is-active { transform: scale(1); opacity: 1; }
.yel-model-card::after { content: ''; position: absolute; inset: 0; background: linear-gradient(0deg, rgba(31, 2, 16, .88), transparent 63%); }
.yel-model-card .yel-card-copy { position: absolute; z-index: 1; inset: auto 1rem 1.1rem; }
.yel-card-badge { display: inline-block; margin-bottom: .6rem; padding: .32rem .6rem; background: var(--yel-crimson); border-radius: 999px; font-size: .65rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; }
.yel-card-copy h3 { margin: 0; color: white; font-family: 'Manrope', sans-serif !important; font-size: 1.08rem; letter-spacing: -.03em; }
.yel-card-copy p { margin: .35rem 0 0; color: rgba(255,255,255,.83); font-size: .73rem; }

/* Étape 1.4 — flèches manuelles du rail auto-défilant (accueil) */
.yel-rail-shell:focus-within .yel-rail-fleche,
.yel-rail-shell:hover .yel-rail-fleche { opacity: 1; }
.yel-rail-fleche {
  display: grid; place-items: center; position: absolute; top: 50%; z-index: 2;
  width: 2.6rem; height: 2.6rem; border-radius: 999px; border: 1px solid var(--yel-line);
  background: rgba(255, 255, 255, .92); color: var(--yel-wine); cursor: pointer;
  box-shadow: var(--yel-shadow); opacity: 0; transition: opacity .22s var(--ease-yeleen), transform .22s var(--ease-yeleen);
  transform: translateY(-50%);
}
.yel-rail-fleche:hover { transform: translateY(-50%) scale(1.06); }
.yel-rail-fleche:focus-visible { opacity: 1; outline: 2px solid var(--yel-crimson); outline-offset: 2px; }
.yel-rail-fleche-gauche { left: -.4rem; }
.yel-rail-fleche-droite { right: -.4rem; }
body:not(.mode-clair) .yel-rail-fleche { background: rgba(38, 14, 32, .92); color: #fff8fc; border-color: rgba(255,255,255,.14); }
@media (max-width: 680px) {
  .yel-rail-fleche { display: none; } /* le tactile fait défiler nativement */
}

.yel-steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.yel-step { position: relative; padding: 2rem 1.5rem; background: #fff; border: 1px solid var(--yel-line); border-radius: 1rem; box-shadow: 0 12px 28px rgba(59,10,35,.06); }
.yel-step-number { position: absolute; top: .8rem; right: 1rem; color: rgba(255,23,112,.16); font-family: 'Manrope', sans-serif; font-size: 3.35rem; font-weight: 800; letter-spacing: -.08em; line-height: 1; }
.yel-step-icon { color: var(--yel-crimson); font-size: 1.25rem; }
.yel-step h3 { margin: 1.5rem 0 .45rem; color: var(--yel-ink); font-family: 'Manrope', sans-serif !important; font-size: 1.05rem; letter-spacing: -.03em; }
.yel-step p { margin: 0; color: #765466; font-size: .88rem; line-height: 1.65; }
.yel-phone-scene { margin-top: 2.2rem; min-height: 19rem; display: grid; place-items: center; background: linear-gradient(135deg, #ff2c7b, #e61945); border-radius: 1.4rem; position: relative; overflow: hidden; }
.yel-phone { width: 10.8rem; height: 17.7rem; padding: .5rem; border: 5px solid #16050d; border-radius: 1.85rem; background: #fff; box-shadow: 0 20px 38px rgba(30,0,12,.28); transform: rotate(4deg); }
.yel-phone-screen { height: 100%; padding: 1.1rem .8rem; border-radius: 1.25rem; background: linear-gradient(155deg, #fff9fc, #ffd1e1); color: var(--yel-wine); }
.yel-phone-screen small { color: var(--yel-red); font-weight: 800; }
.yel-phone-screen strong { display: block; margin-top: 4rem; font-family: 'Manrope', sans-serif; font-size: 1.5rem; font-weight: 800; letter-spacing: -.06em; line-height: 1; }

.yel-benefits { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.4rem; }
.yel-benefit { padding: 1.1rem 0; border-top: 1px solid var(--yel-line); }
.yel-benefit i { color: var(--yel-crimson); font-size: 1.1rem; }
.yel-benefit h3 { margin: .85rem 0 .35rem; font-family: 'Manrope', sans-serif !important; font-size: 1rem; color: var(--yel-ink); }
.yel-benefit p { margin: 0; color: #765466; font-size: .82rem; line-height: 1.6; }

.yel-style-grid, .yel-contact-grid, .yel-partner-grid, .yel-legal-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; }
.yel-style-tabs { display: flex; flex-wrap: wrap; gap: .5rem; margin: 1.5rem 0; }
.yel-style-tab { background: transparent; border: 1px solid rgba(255,255,255,.35); color: white; border-radius: 999px; padding: .65rem 1rem; cursor: pointer; }
.yel-style-tab.is-active { background: white; color: var(--yel-wine); border-color: white; }
.yel-style-preview { min-height: 22rem; display: grid; place-items: center; }
.yel-style-preview .yel-invite-card { position: relative; inset: auto; width: 15rem; transform: rotate(7deg); }
.yel-cta-final { text-align: center; background: var(--yel-wine); position: relative; overflow: hidden; }
.yel-cta-final::before { content: ''; position: absolute; top: 1.5rem; left: 50%; width: .65rem; height: .65rem; border: 1px solid #ff7caf; border-radius: 50%; transform: translateX(-50%); }
.yel-cta-final .yel-title { max-width: 46rem; margin-left: auto; margin-right: auto; color: white; }
.yel-cta-final .btn-or { background: white !important; border-color: white !important; color: var(--yel-wine) !important; box-shadow: none !important; }

.yel-form-card { background: #fff9fc; padding: clamp(1.4rem, 4vw, 2.5rem); border: 1px solid var(--yel-line); border-radius: 1rem; box-shadow: var(--yel-shadow); }
.yel-route-card { min-height: 22rem; padding: 2rem; background: linear-gradient(145deg, #3b0a23, #7c143e); border-radius: 1rem; color: white; box-shadow: 0 20px 46px rgba(59,10,35,.22); }
.yel-route-card .yel-route-node { padding: .85rem 0; border-bottom: 1px solid rgba(255,255,255,.2); font-size: .87rem; }
.yel-route-card .yel-route-node:last-child { border: 0; }
.yel-partner-cards { min-height: 22rem; position: relative; }
.yel-partner-cards > div { position: absolute; width: 67%; aspect-ratio: .77; padding: 1.5rem; border-radius: 1rem; box-shadow: var(--yel-shadow); }
.yel-partner-cards > div:first-child { left: 6%; top: 10%; background: var(--yel-wine); color: white; transform: rotate(-8deg); }
.yel-partner-cards > div:last-child { right: 4%; top: 7%; background: #fff9fc; color: var(--yel-wine); transform: rotate(8deg); border: 1px solid var(--yel-line); }
.yel-partner-cards p { margin: 0 0 1rem; font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.yel-partner-cards strong { display: block; font-family: 'Manrope', sans-serif; font-size: clamp(1.3rem, 3vw, 2.05rem); font-weight: 800; letter-spacing: -.06em; line-height: 1; }
.yel-partner-proof { padding: 1.2rem 0 1.2rem 1rem; border-left: 2px solid var(--yel-red); }
.yel-partner-proof h3 { margin: 0 0 .35rem; font-family: 'Manrope', sans-serif !important; font-size: 1rem; }
.yel-partner-proof p { margin: 0; color: #765466; font-size: .84rem; line-height: 1.6; }

.yel-legal-hero { background: var(--yel-paper); }
.yel-legal-nav { align-self: start; position: sticky; top: 6rem; padding: 1.1rem; border: 1px solid var(--yel-line); border-radius: .8rem; background: #fff; }
.yel-legal-nav a { display: block; padding: .45rem 0; color: #765466; font-size: .83rem; text-decoration: none; }
.yel-legal-content { color: #49323d; font-size: .96rem; line-height: 1.78; }
.yel-legal-content h2 { margin: 2.5rem 0 .8rem; color: var(--yel-wine); font-size: 2.1rem; }

.yel-contact-hero { background: linear-gradient(135deg, #fff9fc 0%, #fff0f6 60%, #ffd4e5 100%); }
.yel-contact-layout { display: grid; grid-template-columns: minmax(15rem, .8fr) minmax(0, 1.2fr); gap: clamp(2rem, 7vw, 7.5rem); align-items: start; }
.yel-contact-aside h2 { margin: .8rem 0 1rem; color: var(--yel-wine); font-size: clamp(2rem, 3.4vw, 3.2rem); line-height: .98; }
.yel-contact-aside > p:not(.yel-kicker):not(.yel-contact-note) { color: #765466; line-height: 1.72; }
.yel-contact-details { display: grid; gap: .65rem; margin: 2rem 0 1rem; }
.yel-contact-details a, .yel-contact-details > div { display: grid; gap: .2rem; padding: .85rem 0; border-bottom: 1px solid var(--yel-line); color: inherit; text-decoration: none; }
.yel-contact-details span { color: var(--yel-red); font-size: .7rem; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.yel-contact-details strong { color: var(--yel-ink); font-size: .94rem; }
.yel-contact-note { color: #765466; font-size: .8rem; }
.yel-contact-form h2 { color: var(--yel-wine); font-size: 2rem; }

body:not(.mode-clair) .yel-title,
body:not(.mode-clair) .yel-contact-aside h2,
body:not(.mode-clair) .yel-contact-form h2,
body:not(.mode-clair) .yel-partner-proof h3,
body:not(.mode-clair) .yel-partner-cards > div:last-child,
body:not(.mode-clair) .yel-contact-details strong { color: #fff8fc; }
body:not(.mode-clair) .yel-copy,
body:not(.mode-clair) .yel-contact-aside > p:not(.yel-kicker):not(.yel-contact-note),
body:not(.mode-clair) .yel-contact-note,
body:not(.mode-clair) .yel-partner-proof p { color: #d5b6c7; }
body:not(.mode-clair) .yel-form-card,
body:not(.mode-clair) .yel-partner-cards > div:last-child { background: #260e20; }

/* Les héros restent volontairement clairs dans les deux thèmes : leurs textes doivent donc
   conserver les contrastes rouge et prune de la charte, et non le blanc du thème sombre. */
body:not(.mode-clair) .yel-hero .yel-title,
body:not(.mode-clair) .yel-contact-hero .yel-title,
body:not(.mode-clair) .yel-section-pink .yel-title,
body:not(.mode-clair) .yel-legal-hero .yel-title,
body:not(.mode-clair) .yel-partner-grid .yel-title { color: var(--yel-ink); }
body:not(.mode-clair) .yel-hero .yel-copy,
body:not(.mode-clair) .yel-contact-hero .yel-copy,
body:not(.mode-clair) .yel-section-pink .yel-copy,
body:not(.mode-clair) .yel-legal-hero .yel-copy,
body:not(.mode-clair) .yel-partner-grid .yel-copy { color: #765466; }
body:not(.mode-clair) .yel-section-pink .yel-partner-proof h3 { color: var(--yel-ink); }
body:not(.mode-clair) .yel-section-pink .yel-partner-proof p { color: #765466; }
/* Cette colonne est volontairement posée sur une section claire, y compris lorsque
   le thème général est sombre : elle conserve donc des encres foncées et lisibles. */
body:not(.mode-clair) .yel-contact-layout .yel-contact-aside h2,
body:not(.mode-clair) .yel-contact-layout .yel-contact-details strong { color: var(--yel-wine); }
body:not(.mode-clair) .yel-contact-layout .yel-contact-aside > p:not(.yel-kicker):not(.yel-contact-note),
body:not(.mode-clair) .yel-contact-layout .yel-contact-note { color: #765466; }

.yel-footer, footer { background: #fff0f6 !important; border-top-color: var(--yel-line) !important; }
body:not(.mode-clair) .yel-footer, body:not(.mode-clair) footer { background: #260e20 !important; }
body:not(.mode-clair) .yel-footer *, body:not(.mode-clair) footer * { color: #fff8fc !important; }

/* Navigation publique : structure compacte sur ordinateur et menu contrôlé sur mobile. */
.yel-main { padding-top: 4.9rem; min-height: 100vh; }
.yel-nav { position: fixed; inset: 0 0 auto; z-index: 40; background: rgba(255, 249, 252, .94) !important; border-bottom: 1px solid var(--yel-line) !important; box-shadow: 0 8px 24px rgba(59, 10, 35, .04); backdrop-filter: blur(16px); }
.yel-nav-shell { width: min(1200px, 100%); height: 4.9rem; margin: 0 auto; padding: 0 1.5rem; display: flex; align-items: center; justify-content: space-between; gap: 1.25rem; }
.yel-nav-brand { display: inline-flex; align-items: center; gap: .55rem; flex: 0 0 auto; color: var(--yel-crimson) !important; text-decoration: none; font-family: 'Manrope', sans-serif !important; font-size: 1.15rem; font-weight: 800; letter-spacing: -.04em; }
.yel-nav-brand svg { width: 1.82rem; height: 1.82rem; }
.yel-nav-desktop { display: flex; align-items: center; justify-content: center; gap: .1rem; min-width: 0; }
.yel-nav-link { padding: .52rem .68rem; color: var(--texte2) !important; border-radius: 999px !important; font-size: .78rem; font-weight: 700; line-height: 1; text-decoration: none; white-space: nowrap; transition: color .18s var(--ease-yeleen), background .18s var(--ease-yeleen); }
.yel-nav-link:hover, .yel-nav-link:focus-visible { color: var(--yel-crimson) !important; background: rgba(255, 23, 112, .08); outline: none; }
.yel-nav-link.is-active { color: var(--yel-crimson) !important; background: rgba(255, 23, 112, .1); }
.yel-nav-actions { display: flex; align-items: center; justify-content: flex-end; gap: .7rem; flex: 0 0 auto; }
.yel-nav-account { display: inline-flex; align-items: center; gap: .45rem; color: var(--yel-ink) !important; font-size: .77rem; font-weight: 700; text-decoration: none; white-space: nowrap; }
.yel-nav-account:hover, .yel-nav-account:focus-visible { color: var(--yel-crimson) !important; outline: none; }
.yel-nav-cta, .yel-nav-mobile-cta { display: inline-flex; align-items: center; justify-content: center; min-height: 2.65rem; padding: .45rem 1rem; border-radius: 999px; background: var(--yel-crimson); color: #fff !important; font-size: .76rem; font-weight: 800; text-decoration: none; white-space: nowrap; box-shadow: 0 9px 20px rgba(255, 23, 112, .22); transition: transform .18s var(--ease-yeleen), background .18s var(--ease-yeleen); }
.yel-nav-cta:hover, .yel-nav-cta:focus-visible, .yel-nav-mobile-cta:hover, .yel-nav-mobile-cta:focus-visible { background: #f70a66; color: #fff !important; outline: none; transform: translateY(-1px); }
.yel-nav-burger { display: none; width: 2.6rem; height: 2.6rem; place-items: center; border: 1px solid var(--yel-line); border-radius: 999px; background: transparent; color: var(--yel-crimson); font-size: 1.05rem; cursor: pointer; }
.yel-nav-burger:focus-visible { outline: 3px solid rgba(255, 23, 112, .25); outline-offset: 2px; }
.yel-nav-mobile { border-top: 1px solid var(--yel-line); background: var(--yel-ivory); box-shadow: 0 15px 28px rgba(59, 10, 35, .09); }
.yel-nav-mobile[hidden] { display: none !important; }
.yel-nav-mobile-inner { width: min(1200px, 100%); margin: 0 auto; padding: .7rem 1.25rem 1rem; display: grid; gap: .2rem; }
.yel-nav-mobile-link { padding: .82rem .9rem; border-radius: .75rem !important; color: var(--yel-ink) !important; font-size: .92rem; font-weight: 700; text-decoration: none; }
.yel-nav-mobile-link.is-active { background: rgba(255, 23, 112, .1); color: var(--yel-crimson) !important; }
.yel-nav-mobile-actions { display: grid; grid-template-columns: 1fr 1.25fr; gap: .65rem; padding-top: .75rem; margin-top: .35rem; border-top: 1px solid var(--yel-line); }
.yel-nav-mobile-account { display: inline-flex; align-items: center; justify-content: center; gap: .45rem; min-height: 2.65rem; border: 1px solid var(--yel-line); border-radius: 999px !important; color: var(--yel-ink) !important; font-size: .79rem; font-weight: 800; text-decoration: none; }
body:not(.mode-clair) .yel-nav { background: rgba(28, 6, 20, .94) !important; }
body:not(.mode-clair) .yel-nav-mobile { background: #260e20; }
body:not(.mode-clair) .yel-nav-link, body:not(.mode-clair) .yel-nav-account, body:not(.mode-clair) .yel-nav-mobile-link, body:not(.mode-clair) .yel-nav-mobile-account { color: #fff8fc !important; }
body:not(.mode-clair) .yel-nav-link.is-active, body:not(.mode-clair) .yel-nav-mobile-link.is-active { color: #ff8aba !important; }

/* ─── Étape 1.5 : aperçu en temps réel dans le formulaire de commande ────────
   Deux colonnes sur desktop (formulaire | aperçu collé au scroll), empilées
   sur mobile/tablette (le formulaire toujours en premier — voir palier 900px
   ci-dessous, et 780px/430px plus bas pour l'exigence 1.10). */
.yel-commander-grille { display: grid; grid-template-columns: minmax(0, 860px) minmax(0, 380px); gap: 2.5rem; align-items: start; justify-content: center; }
.yel-commander-colonne-apercu { position: sticky; top: 5.5rem; align-self: start; }
.yel-commander-apercu-cadre { background: var(--bg2); border: 1px solid rgba(255, 23, 112, .2); border-radius: .85rem; overflow: hidden; display: flex; flex-direction: column; max-height: calc(100vh - 7rem); }
.yel-commander-apercu-titre { margin: 0; padding: .85rem 1.1rem; font-size: .72rem; font-weight: 800; letter-spacing: .06em; text-transform: uppercase; color: var(--yel-crimson); border-bottom: 1px solid rgba(255, 23, 112, .15); background: rgba(255, 23, 112, .05); }
#apercu-live-hote { overflow-y: auto; background: #0e0b12; flex: 1; min-height: 220px; }
.yel-commander-apercu-vide { padding: 2.5rem 1.5rem; text-align: center; color: var(--texte2); font-size: .82rem; line-height: 1.6; }
#apercu-live-cadre { background: #0e0b12; }

@media (max-width: 900px) {
  .yel-hero, .yel-style-grid, .yel-contact-grid, .yel-contact-layout, .yel-partner-grid, .yel-legal-grid { grid-template-columns: 1fr; }
  .yel-hero { padding: 2.5rem 0 1rem; min-height: auto; gap: 2rem; }
  .yel-hero-visual { min-height: 23rem; }
  .yel-benefits { grid-template-columns: repeat(2, 1fr); }
  .yel-legal-nav { position: static; }
  .yel-commander-grille { grid-template-columns: 1fr; }
  .yel-commander-colonne-apercu { position: static; order: 2; margin-top: 1.75rem; }
  .yel-commander-apercu-cadre { max-height: 60vh; }
}
@media (max-width: 780px) {
  .yel-section-inner { padding-left: 1.15rem; padding-right: 1.15rem; }
  #etape-1 > div, #etape-2 > div, #etape-3 > div, #etape-4 > div { padding: 1.35rem !important; }
  #type-evenement-grid { grid-template-columns: 1fr !important; }
  #champs-dynamiques > div, .yel-commander-colonne-form div[style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
  #options-dynamiques div[style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
  /* Formulaires 2 colonnes des pages contact/partenaires/espace-client/dashboard
     partenaire (classe posée dans le HTML mais jamais câblée avant l'audit 1.10) */
  .grid-2col, div[style*="grid-template-columns:1fr 1fr"] { grid-template-columns: 1fr !important; }
  /* Colonnes FAQ (question latérale + contenu) : empiler sur mobile/tablette */
  .yel-faq-layout { grid-template-columns: 1fr !important; gap: 1.75rem !important; }
}
@media (max-width: 430px) {
  #etapes-indicateur { transform: scale(.88); }
  .step-line { min-width: 1.1rem; }
  #plans-grid, #modeles-grid { grid-template-columns: 1fr !important; }
  .yel-commander-apercu-cadre { max-height: 52vh; }
}
@media (max-width: 1020px) {
  .yel-nav-desktop, .yel-nav-account, .yel-nav-cta { display: none; }
  .yel-nav-burger { display: inline-grid; }
}
@media (max-width: 680px) {
  .yel-main { padding-top: 4.35rem; }
  .yel-nav-shell { height: 4.35rem; padding: 0 1rem; gap: .75rem; }
  .yel-nav-brand { font-size: 1.05rem; }
  .yel-nav-brand svg { width: 1.62rem; height: 1.62rem; }
  .yel-nav-actions { gap: .45rem; }
  .yel-section { padding: 3.5rem 1.15rem; }
  .yel-title { font-size: clamp(2.1rem, 11vw, 3.25rem); letter-spacing: -.07em; }
  .yel-copy { font-size: .96rem; line-height: 1.68; }
  .yel-steps, .yel-benefits { grid-template-columns: 1fr; }
  .yel-model-card { min-width: 67vw; }
  .yel-hero { padding-top: 1rem; gap: 1.35rem; }
  .yel-hero-visual { min-height: clamp(17rem, 67vw, 21rem); }
  .yel-invite-stack { inset: 10% 4%; }
  .yel-float-pill { right: -2%; bottom: 5%; font-size: .7rem; }
  .yel-nav-mobile-inner { padding: .65rem 1rem 1rem; }
  .yel-nav-mobile-actions { grid-template-columns: 1fr; }
  .yel-footer, footer { padding: 3rem 1.15rem 1.5rem !important; margin-top: 3.5rem !important; }
  .yel-partner-cards { min-height: 19rem; }
  .yel-partner-cards > div { width: 72%; padding: 1.15rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; transition-duration: .01ms !important; }
}