:root { --nuit: #13243a; --nuit2: #1d3553; --p: #3f5f86; --or: #f2c14e; --corail: #e8836b; --creme: #fbf8f3; --texte: #1b2a3a; --doux: #5b6b7f; --bord: #e6e1d8; --rayon: 18px; }
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif; color: var(--texte); background: var(--creme); font-size: 17px; line-height: 1.6; -webkit-text-size-adjust: 100%; overflow-x: hidden; }
a { color: var(--p); }
.conteneur { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }
h1, h2, h3 { font-family: "Poppins", "Inter", sans-serif; line-height: 1.15; letter-spacing: -.02em; margin: 0 0 .6rem; }
h1 { font-size: clamp(2.1rem, 5vw, 3.5rem); }
h2 { font-size: clamp(1.7rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.15rem; }
.surtitre { display: inline-block; font-size: .8rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--corail); margin-bottom: .7rem; }
.btn { display: inline-flex; align-items: center; justify-content: center; gap: .5rem; padding: .85rem 1.4rem; border-radius: 999px; font-weight: 700; text-decoration: none; font-size: 1rem; border: 2px solid transparent; cursor: pointer; font-family: inherit; transition: transform .15s, box-shadow .15s; }
.btn:hover { transform: translateY(-1px); }
.btn-or { background: var(--or); color: var(--nuit); box-shadow: 0 8px 24px rgba(242,193,78,.35); }
.btn-clair { border-color: rgba(255,255,255,.35); color: #fff; }
.btn-nuit { background: var(--nuit); color: #fff; }
.btn-contour { border-color: var(--nuit); color: var(--nuit); }

/* En-tête */
.entete { position: sticky; top: 0; z-index: 50; background: rgba(19,36,58,.92); backdrop-filter: blur(10px); color: #fff; }
.entete .conteneur { display: flex; align-items: center; gap: 1.2rem; height: 66px; }
.logo { display: flex; align-items: center; gap: .55rem; font-weight: 800; font-size: 1.05rem; color: #fff; text-decoration: none; white-space: nowrap; }
.logo i { width: 32px; height: 32px; border-radius: 10px; background: var(--or); color: var(--nuit); display: grid; place-items: center; font-style: normal; }
.entete nav { display: flex; gap: 1.3rem; margin-left: auto; align-items: center; }
.entete nav a { color: rgba(255,255,255,.85); text-decoration: none; font-weight: 500; font-size: .95rem; }
.entete nav a:hover { color: #fff; }
.entete .btn { padding: .55rem 1.1rem; font-size: .92rem; }
@media (max-width: 860px) { .entete nav a.lien { display: none; } }

/* Héros */
.heros { background: radial-gradient(1200px 500px at 85% -10%, rgba(242,193,78,.18), transparent 60%), linear-gradient(170deg, var(--nuit), var(--nuit2)); color: #fff; padding: 72px 0 90px; overflow: hidden; }
.heros .conteneur { display: grid; grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr); gap: 3rem; align-items: center; }
.heros p.lead { font-size: 1.2rem; color: rgba(255,255,255,.82); max-width: 560px; }
.heros .actions { display: flex; gap: .8rem; flex-wrap: wrap; margin: 1.8rem 0 1rem; }
.heros .rassure { font-size: .88rem; color: rgba(255,255,255,.65); }
.maquette { background: #fff; border-radius: 22px; box-shadow: 0 30px 80px rgba(0,0,0,.4); overflow: hidden; color: var(--texte); max-width: 400px; margin-left: auto; transform: rotate(1.5deg); }
.maquette .mt { background: var(--nuit); color: #fff; padding: .9rem 1rem; display: flex; gap: .7rem; align-items: center; }
.maquette .mt i { width: 36px; height: 36px; border-radius: 50%; background: var(--or); display: grid; place-items: center; font-style: normal; }
.maquette .mt b { display: block; font-size: .92rem; } .maquette .mt span { font-size: .72rem; opacity: .75; }
.maquette .mz { background: #fffaf5; padding: 1rem; display: flex; flex-direction: column; gap: .55rem; font-size: .86rem; }
.bul { max-width: 86%; padding: .55rem .85rem; border-radius: 16px; line-height: 1.45; }
.bul.bot { background: #fff; border: 1px solid #ecd9d4; border-bottom-left-radius: 5px; align-self: flex-start; }
.bul.moi { background: var(--p); color: #fff; border-bottom-right-radius: 5px; align-self: flex-end; }
.pills { display: flex; flex-wrap: wrap; gap: .35rem; }
.pills span { border: 1.5px solid var(--p); color: var(--p); border-radius: 999px; padding: .28rem .7rem; font-size: .76rem; font-weight: 600; background: #fff; }
.pills span.aide { border-color: var(--corail); color: #b35a45; background: #fff4f1; }
@media (max-width: 900px) { .heros .conteneur { grid-template-columns: 1fr; } .maquette { margin: 0 auto; transform: none; } }

/* Sections */
section { padding: 90px 0; }
.centre { text-align: center; max-width: 760px; margin: 0 auto 3rem; }
.centre p { color: var(--doux); font-size: 1.1rem; }
.probleme { background: #fff; }
.colonnes { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.4rem; }
.carte { background: #fff; border: 1px solid var(--bord); border-radius: var(--rayon); padding: 1.6rem; }
.carte .ic { width: 46px; height: 46px; border-radius: 14px; background: #fdf1d4; display: grid; place-items: center; font-size: 1.4rem; margin-bottom: 1rem; }
.carte p { color: var(--doux); margin: 0; font-size: .97rem; }
.avant-apres { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.4rem; }
.avant-apres .carte h3 { display: flex; gap: .5rem; align-items: center; }
.avant-apres ul { margin: .5rem 0 0; padding-left: 1.2rem; color: var(--doux); }
.avant-apres .apres { border-color: var(--p); box-shadow: 0 0 0 3px rgba(63,95,134,.1); }
.etapes { counter-reset: e; }
.etapes .carte { position: relative; padding-top: 2.4rem; }
.etapes .carte::before { counter-increment: e; content: counter(e); position: absolute; top: -18px; left: 1.6rem; width: 40px; height: 40px; border-radius: 50%; background: var(--nuit); color: var(--or); display: grid; place-items: center; font-weight: 800; font-family: Poppins, sans-serif; }

/* Démo */
.demo { background: linear-gradient(180deg, #fff, var(--creme)); }
.demo .grille { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: 3rem; align-items: center; }
.demo ul { padding-left: 1.2rem; color: var(--doux); }
.demo ul li { margin: .35rem 0; }
.cadre-demo { height: 660px; }
@media (max-width: 900px) { .demo .grille { grid-template-columns: 1fr; } .cadre-demo { height: 620px; } }

/* Tarifs */
.tarifs { background: var(--nuit); color: #fff; }
.tarifs .centre p { color: rgba(255,255,255,.75); }
.bascule { display: inline-flex; background: rgba(255,255,255,.1); border-radius: 999px; padding: 4px; margin-top: 1rem; }
.bascule button { border: 0; background: none; color: #fff; font: inherit; font-weight: 600; padding: .5rem 1.1rem; border-radius: 999px; cursor: pointer; font-size: .92rem; }
.bascule button.actif { background: var(--or); color: var(--nuit); }
.prix-grille { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 1.4rem; align-items: stretch; }
.prix { background: #fff; color: var(--texte); border-radius: 22px; padding: 2rem 1.7rem; display: flex; flex-direction: column; position: relative; }
.prix.vedette { outline: 3px solid var(--or); }
.prix .etiquette { position: absolute; top: -14px; left: 50%; transform: translateX(-50%); background: var(--or); color: var(--nuit); font-weight: 800; font-size: .76rem; padding: .3rem .9rem; border-radius: 999px; white-space: nowrap; }
.prix .montant { font-family: Poppins, sans-serif; font-size: 2.6rem; font-weight: 800; letter-spacing: -.03em; margin: .5rem 0 0; }
.prix .montant small { font-size: 1rem; color: var(--doux); font-weight: 500; }
.prix .eq { font-size: .85rem; color: var(--doux); min-height: 1.3em; }
.prix ul { list-style: none; padding: 0; margin: 1.2rem 0 1.6rem; flex: 1; }
.prix li { padding: .38rem 0 .38rem 1.7rem; position: relative; font-size: .95rem; }
.prix li::before { content: "✓"; position: absolute; left: 0; color: #1f8a4c; font-weight: 800; }
.prix .btn { width: 100%; }
.note-prix { text-align: center; color: rgba(255,255,255,.7); font-size: .9rem; margin-top: 1.8rem; }

/* FAQ */
.faq details { background: #fff; border: 1px solid var(--bord); border-radius: 14px; padding: 1.1rem 1.3rem; margin-bottom: .8rem; }
.faq summary { font-weight: 700; cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
.faq summary::after { content: "+"; font-size: 1.3rem; color: var(--p); }
.faq details[open] summary::after { content: "–"; }
.faq details p { color: var(--doux); margin: .8rem 0 0; }
.etroit { max-width: 820px; margin: 0 auto; }

/* Contact */
.contact { background: #fff; }
.contact form { display: grid; gap: .9rem; }
.contact .ligne { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: .9rem; }
.contact input, .contact textarea { width: 100%; font: inherit; font-size: 16px; padding: .8rem 1rem; border: 1.5px solid var(--bord); border-radius: 12px; background: var(--creme); }
.contact textarea { min-height: 130px; resize: vertical; }
.msg { padding: .8rem 1rem; border-radius: 12px; display: none; }
.msg.ok { display: block; background: #e5f5ec; color: #1f6b3e; } .msg.err { display: block; background: #fdecea; color: #a1342a; }
.cta-final { background: linear-gradient(135deg, var(--corail), #d9694f); color: #fff; text-align: center; border-radius: 28px; padding: 3.5rem 1.5rem; }
.cta-final p { color: rgba(255,255,255,.9); font-size: 1.1rem; }

/* Pied */
.pied { background: var(--nuit); color: rgba(255,255,255,.7); padding: 2.5rem 0; font-size: .9rem; }
.pied .conteneur { display: flex; gap: 1.5rem; flex-wrap: wrap; justify-content: space-between; align-items: center; }
.pied a { color: rgba(255,255,255,.85); text-decoration: none; margin-left: 1.2rem; }

/* Pages légales */
.legal { max-width: 820px; margin: 0 auto; padding: 60px 20px 90px; }
.legal h1 { font-size: 2.2rem; }
.legal h2 { font-size: 1.35rem; margin-top: 2.2rem; }
.legal p, .legal li { color: #34465a; }
.legal .avis { background: #fff4d6; border: 1px solid #f2d27a; border-radius: 12px; padding: 1rem 1.2rem; font-size: .92rem; }