:root {
  --marine: #0F2340; --signal: #FF5A1F; --signal-fonce: #E0440C; --soleil: #FFC23D; --terrain: #19A974;
  --craie: #F5F2EC; --blanc: #FFFFFF; --noir: #121212; --gris: #5B5F68; --filet: #DCD7CD;
  --titre: "Inter Tight", "Helvetica Neue", Arial, sans-serif;
  --lecture: "Source Serif 4", Georgia, serif;
  --large: 1120px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { margin: 0; font-family: var(--titre); color: var(--marine); background: var(--craie); line-height: 1.5; font-size: 18px; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }
h1, h2, h3 { text-wrap: balance; margin: 0; letter-spacing: -0.035em; line-height: 1; font-weight: 900; }
p { margin: 0 0 1em; }
.conteneur { max-width: var(--large); margin: 0 auto; padding: 0 24px; }
section { padding: 88px 0; }
.sur-titre { font-weight: 800; font-size: 14px; letter-spacing: 0.09em; text-transform: uppercase; color: var(--signal); margin-bottom: 16px; }
h2 { font-size: clamp(34px, 5vw, 56px); margin-bottom: 20px; }
.chapo { font-family: var(--lecture); font-size: 21px; line-height: 1.5; color: #26344d; max-width: 680px; }

/* Boutons */
.btn { display: inline-flex; flex-direction: column; align-items: flex-start; gap: 2px; text-decoration: none; font-weight: 900; font-size: 19px; letter-spacing: -0.01em; padding: 16px 26px; border-radius: 14px; border: 0; cursor: pointer; transition: transform .15s ease, box-shadow .15s ease, background .15s ease; }
.btn small { font-weight: 600; font-size: 14px; letter-spacing: 0; opacity: .85; }
.btn:hover { transform: translateY(-2px); }
.btn:focus-visible, a:focus-visible, summary:focus-visible { outline: 3px solid var(--soleil); outline-offset: 3px; }
.btn-marine { background: var(--marine); color: #fff; box-shadow: 0 6px 0 rgba(15,35,64,.25); }
.btn-soleil { background: var(--soleil); color: var(--marine); box-shadow: 0 6px 0 rgba(15,35,64,.28); }
.btn-signal { background: var(--signal); color: #fff; box-shadow: 0 6px 0 var(--signal-fonce); }
.btn-contour { background: transparent; color: #fff; box-shadow: inset 0 0 0 2px rgba(255,255,255,.8); }
.btn-centre { align-items: center; text-align: center; }

/* En-tête */
.entete { position: sticky; top: 0; z-index: 50; background: rgba(245,242,236,.92); backdrop-filter: blur(10px); border-bottom: 1px solid var(--filet); }
.entete .conteneur { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.marque { font-weight: 900; font-size: 21px; letter-spacing: -0.03em; text-decoration: none; }
.marque span { color: var(--signal); }
.entete nav { display: flex; gap: 28px; align-items: center; font-weight: 700; font-size: 15px; }
.entete nav a { text-decoration: none; }
.entete nav a:hover { color: var(--signal); }
.entete .btn { padding: 10px 18px; font-size: 15px; box-shadow: none; }

/* Héros */
.heros { background: var(--signal); color: #fff; padding: 72px 0 0; overflow: hidden; }
.heros .grille { display: grid; grid-template-columns: 1.15fr .85fr; gap: 48px; align-items: end; }
.heros .sur-titre { color: var(--marine); }
.heros h1 { font-size: clamp(46px, 7.4vw, 92px); line-height: .92; letter-spacing: -0.045em; }
.heros h1 em { font-style: normal; color: var(--marine); }
.heros .promesse { font-size: 22px; line-height: 1.4; font-weight: 500; max-width: 560px; margin: 24px 0 30px; }
.heros .actions { display: flex; flex-wrap: wrap; gap: 14px; }
.reperes { display: flex; flex-wrap: wrap; gap: 10px 26px; padding: 0; margin: 30px 0 72px; list-style: none; font-weight: 700; font-size: 15.5px; }
.reperes li { display: flex; align-items: center; gap: 9px; }
.reperes li::before { content: ""; width: 18px; height: 18px; border-radius: 50%; background: var(--marine) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.4l2.6 2.6L13 6.6' fill='none' stroke='white' stroke-width='2.2'/%3E%3C/svg%3E"); flex: none; }
.heros .scene { position: relative; align-self: end; padding-top: 40px; }
.bulle { position: absolute; top: 0; left: -30px; z-index: 2; background: var(--craie); color: var(--marine); border-radius: 22px 22px 22px 6px; padding: 16px 20px; max-width: 290px; font-family: var(--lecture); font-size: 19px; line-height: 1.3; box-shadow: 0 8px 0 rgba(15,35,64,.2); animation: bulle .7s .3s both cubic-bezier(.2,.9,.3,1.3); }
.bulle small { display: block; font-family: var(--titre); font-weight: 800; font-size: 11.5px; letter-spacing: .08em; text-transform: uppercase; color: var(--signal); margin-bottom: 4px; }
@keyframes bulle { from { opacity: 0; transform: translateY(16px) scale(.92); } }
.livre { width: min(340px, 78%); margin: 0 auto; border-radius: 6px 6px 0 0; transform: rotate(3deg) translateY(18px); box-shadow: -18px 20px 0 rgba(15,35,64,.25); }

/* Scène */
.constat .grille { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.constat img { border-radius: 20px; box-shadow: 12px 12px 0 var(--soleil); }
.constat .recit { font-family: var(--lecture); font-size: 20px; line-height: 1.6; color: #26344d; }
.idee { margin: 28px 0 0; padding: 22px 26px; background: var(--marine); color: #fff; border-radius: 16px; font-weight: 800; font-size: 23px; line-height: 1.25; letter-spacing: -0.02em; }
.idee span { color: var(--soleil); }

/* Bénéfices */
.blanc { background: var(--blanc); }
.cartes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; margin-top: 44px; }
.carte { background: var(--craie); border-radius: 18px; padding: 26px; }
.carte .n { font-weight: 900; font-size: 44px; letter-spacing: -0.05em; color: var(--signal); line-height: 1; }
.carte h3 { font-size: 21px; line-height: 1.15; margin: 12px 0 8px; letter-spacing: -0.02em; }
.carte p { margin: 0; font-size: 16.5px; color: var(--gris); }
.carte.forte { background: var(--marine); color: #fff; }
.carte.forte p { color: #c9d2e2; } .carte.forte .n { color: var(--soleil); }

/* Principes */
.parties { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 44px; }
.partie { background: var(--blanc); border-radius: 20px; overflow: hidden; display: grid; grid-template-columns: 150px 1fr; }
.partie .img { background-size: cover; background-position: center; min-height: 100%; position: relative; }
.partie .img b { position: absolute; left: 12px; top: 6px; font-size: 64px; font-weight: 900; color: #fff; letter-spacing: -0.06em; text-shadow: 0 2px 0 rgba(15,35,64,.35); }
.partie .txt { padding: 22px 24px; }
.partie h3 { font-size: 22px; margin-bottom: 12px; letter-spacing: -0.025em; }
.partie ol { margin: 0; padding: 0; list-style: none; font-size: 15.5px; line-height: 1.35; }
.partie li { display: grid; grid-template-columns: 30px 1fr; padding: 8px 0; border-top: 1px solid var(--filet); }
.partie li b { color: var(--c, var(--signal)); font-weight: 900; }

/* Plan 30 jours */
.plan { background: var(--marine); color: #fff; }
.plan .sur-titre { color: var(--soleil); }
.plan .chapo { color: #c9d2e2; }
.semaines { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; margin-top: 48px; counter-reset: s; }
.semaine { padding: 0 22px 0 0; position: relative; }
.semaine::before { content: ""; display: block; height: 4px; background: rgba(255,255,255,.18); margin-bottom: 22px; }
.semaine::after { content: ""; position: absolute; top: -7px; left: 0; width: 18px; height: 18px; border-radius: 50%; background: var(--soleil); }
.semaine .l { font-weight: 800; font-size: 13px; letter-spacing: .09em; text-transform: uppercase; color: var(--soleil); }
.semaine h3 { font-size: 23px; margin: 8px 0; letter-spacing: -0.025em; line-height: 1.1; }
.semaine p { font-size: 16px; color: #c9d2e2; margin: 0; }

/* Fiche gratuite */
.fiche { background: var(--soleil); }
.fiche .grille { display: grid; grid-template-columns: 1.2fr .8fr; gap: 48px; align-items: center; }
.fiche .sur-titre { color: var(--marine); }
.fiche ul { padding-left: 20px; font-weight: 600; }
.fiche .feuille { background: #fff; border-radius: 10px; padding: 26px; transform: rotate(2.5deg); box-shadow: 12px 14px 0 rgba(15,35,64,.2); font-size: 15px; }
.fiche .feuille b { display: block; font-size: 24px; font-weight: 900; letter-spacing: -0.03em; line-height: 1.05; margin-bottom: 10px; }
.fiche .feuille i { display: block; height: 9px; border-radius: 5px; background: var(--craie); margin: 9px 0; }
[hidden] { display: none !important; }

/* Pour qui */
.pourqui { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; margin-top: 40px; }
.pourqui div { background: var(--blanc); border-radius: 18px; padding: 28px; }
.pourqui h3 { font-size: 22px; margin-bottom: 14px; letter-spacing: -0.02em; }
.pourqui ul { margin: 0; padding: 0; list-style: none; }
.pourqui li { padding: 10px 0 10px 34px; position: relative; border-top: 1px solid var(--filet); font-size: 17px; }
.pourqui li::before { content: ""; position: absolute; left: 0; top: 13px; width: 20px; height: 20px; border-radius: 50%; background: var(--terrain) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 18 18'%3E%3Cpath d='M5 9.4l2.6 2.6L13 6.6' fill='none' stroke='white' stroke-width='2.2'/%3E%3C/svg%3E"); }
.methode { font-family: var(--lecture); }
.methode small { display: block; font-family: var(--titre); color: var(--gris); font-size: 13.5px; margin-top: 12px; }
.methode .chiffre { font-family: var(--titre); font-weight: 900; font-size: 54px; letter-spacing: -0.05em; color: var(--signal); line-height: 1; }

/* Offres */
.offres { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; margin-top: 44px; max-width: 860px; }
.offre { background: var(--craie); border-radius: 22px; padding: 30px; display: flex; flex-direction: column; position: relative; }
.offre.vedette { background: var(--marine); color: #fff; }
.offre .etiquette { position: absolute; top: -13px; left: 28px; background: var(--soleil); color: var(--marine); font-weight: 900; font-size: 12.5px; letter-spacing: .07em; text-transform: uppercase; padding: 5px 12px; border-radius: 20px; }
.offre h3 { font-size: 24px; letter-spacing: -0.025em; }
.offre .prix { font-weight: 900; font-size: 60px; letter-spacing: -0.05em; line-height: 1; margin: 14px 0 6px; }
.offre .prix small { font-size: 18px; letter-spacing: 0; font-weight: 700; opacity: .7; }
.offre ul { padding: 0; margin: 14px 0 24px; list-style: none; font-size: 16.5px; flex: 1; }
.offre li { padding: 8px 0; border-top: 1px solid rgba(110,113,121,.3); }
.offre .btn { align-self: stretch; align-items: center; }
.note { font-size: 14.5px; color: var(--gris); margin-top: 22px; max-width: 760px; }

/* FAQ */
.faq { max-width: 800px; }
details { border-top: 2px solid var(--marine); }
details:last-of-type { border-bottom: 2px solid var(--marine); }
summary { list-style: none; cursor: pointer; padding: 20px 44px 20px 0; font-weight: 800; font-size: 20px; letter-spacing: -0.02em; position: relative; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; position: absolute; right: 4px; top: 12px; font-size: 32px; font-weight: 500; color: var(--signal); transition: transform .2s; }
details[open] summary::after { transform: rotate(45deg); }
details p { font-family: var(--lecture); font-size: 18.5px; line-height: 1.55; color: #26344d; padding-right: 30px; }

/* Final */
.final { background: var(--signal) url(assets/ponton.jpg) center 78% / cover; color: #fff; text-align: center; padding: 0; }
.final .voile { background: linear-gradient(180deg, rgba(255,90,31,.96) 0%, rgba(255,90,31,.9) 45%, rgba(255,90,31,.2) 100%); padding: 96px 0 300px; }
.final h2 { font-size: clamp(38px, 6vw, 72px); }
.final p { font-size: 21px; font-weight: 500; max-width: 560px; margin: 0 auto 30px; }
.final .actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

footer { background: var(--marine); color: #c9d2e2; padding: 36px 0 96px; font-size: 14.5px; }
footer .conteneur { display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
footer a { color: #fff; }

/* Barre mobile */
.barre { position: fixed; left: 0; right: 0; bottom: 0; z-index: 60; background: var(--marine); padding: 10px 14px calc(10px + env(safe-area-inset-bottom)); display: none; gap: 10px; align-items: center; justify-content: space-between; color: #fff; transform: translateY(110%); transition: transform .25s ease; }
.barre.visible { transform: none; }
.barre b { font-size: 15px; line-height: 1.15; }
.barre b small { display: block; font-weight: 600; color: var(--soleil); font-size: 13px; }
.barre .btn { padding: 11px 18px; font-size: 16px; box-shadow: none; }

/* Pages secondaires */
.page-simple { max-width: 760px; margin: 0 auto; padding: 64px 24px 96px; }
.page-simple h1 { font-size: 44px; margin-bottom: 24px; }
.page-simple h2 { font-size: 24px; margin: 32px 0 10px; }
.page-simple p, .page-simple li { font-family: var(--lecture); }
.a-completer { background: var(--soleil); padding: 1px 6px; border-radius: 4px; font-family: var(--titre); font-weight: 700; }

@media (prefers-reduced-motion: reduce) { .bulle { animation: none; } html { scroll-behavior: auto; } }

@media (max-width: 900px) {
  section { padding: 64px 0; }
  .entete nav a:not(.btn) { display: none; }
  .heros { padding-top: 44px; }
  .heros .grille, .constat .grille, .fiche .grille { grid-template-columns: 1fr; gap: 36px; }
  .reperes { margin-bottom: 36px; }
  .bulle { left: 0; }
  .cartes { grid-template-columns: 1fr; }
  .parties, .pourqui, .offres { grid-template-columns: 1fr; }
  .semaines { grid-template-columns: 1fr; gap: 30px; }
  .semaine { padding-left: 34px; }
  .semaine::before { position: absolute; left: 7px; top: 0; bottom: -30px; width: 4px; height: auto; margin: 0; }
  .semaine:last-child::before { bottom: 0; }
  .semaine::after { top: 0; }
  .barre { display: flex; }
  .final .voile { padding-bottom: 220px; }
}
@media (max-width: 520px) {
  body { font-size: 17px; }
  .partie { grid-template-columns: 84px 1fr; }
  .partie .img b { font-size: 44px; left: 8px; }
  .heros .actions .btn { width: 100%; }
  .offre .prix { font-size: 52px; }
}