/* =========================================================
   Velloot — Feuille de style principale
   Charte : navy profond + vert émeraude (d'après l'affiche)
   ========================================================= */

:root {
    --vert: #22c55e;            /* vert émeraude — accent de marque */
    --vert-clair: #4ade80;
    --vert-fonce: #16a34a;
    --navy: #0a1728;            /* fond sombre principal */
    --navy-2: #0f2337;          /* cartes / header sombres */
    --navy-3: #16324f;
    --navy-bord: #22405f;
    --gris: #f3f6f9;
    --gris-bord: #e3e8ef;
    --texte: #1f2a37;
    --texte-doux: #5a6675;
    --texte-inv: rgba(255, 255, 255, 0.82);
    --texte-inv-doux: rgba(255, 255, 255, 0.60);
    --blanc: #ffffff;
    --ombre: 0 6px 24px rgba(10, 23, 40, 0.08);
    --ombre-forte: 0 16px 44px rgba(10, 23, 40, 0.16);
    --ombre-vert: 0 12px 34px rgba(34, 197, 94, 0.28);
    --radius: 14px;
    --transition: 0.2s ease;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

body {
    font-family: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;
    color: var(--texte);
    line-height: 1.6;
    background: var(--blanc);
}

h1, h2, h3, h4 { line-height: 1.2; color: var(--navy); font-weight: 700; }

a { color: var(--vert-fonce); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--vert); }

img { max-width: 100%; }

.conteneur { width: 100%; max-width: 1160px; margin: 0 auto; padding: 0 20px; }
.conteneur--etroit { max-width: 720px; }

/* ---------- Boutons ---------- */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    border: 2px solid transparent;
    transition: all var(--transition);
    text-align: center;
}
.btn--primaire { background: var(--vert); color: #06231a; }
.btn--primaire:hover { background: var(--vert-clair); color: #06231a; transform: translateY(-2px); box-shadow: var(--ombre-vert); }
.btn--ghost { background: transparent; color: var(--navy); border-color: var(--gris-bord); }
.btn--ghost:hover { border-color: var(--vert); color: var(--vert-fonce); }
.btn--clair { background: transparent; color: #fff; border-color: rgba(255,255,255,0.35); }
.btn--clair:hover { border-color: var(--vert); color: var(--vert-clair); }
.btn--sm { padding: 9px 18px; font-size: 0.85rem; }
.btn--lg { padding: 15px 34px; font-size: 1.05rem; }
.btn--bloc { display: block; width: 100%; }

/* ---------- En-tête (sombre, façon affiche) ---------- */
.entete {
    position: sticky; top: 0; z-index: 100;
    background: rgba(10, 23, 40, 0.88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.entete__inner { display: flex; align-items: center; justify-content: space-between; height: 74px; }
.logo { display: flex; align-items: center; }
.logo__img { height: 40px; width: auto; display: block; }
.logo__marque {
    font-size: 1.6rem; font-weight: 800; letter-spacing: -0.5px; color: #fff;
}
.nav { display: flex; align-items: center; gap: 4px; }
.nav__lien { padding: 8px 14px; border-radius: 8px; color: var(--texte-inv); font-weight: 500; }
.nav__lien:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.nav__lien.actif { color: var(--vert-clair); }
.nav__cta { margin-left: 10px; background: var(--vert); color: #06231a; }
.nav__cta:hover { background: var(--vert-clair); color: #06231a; }

.menu-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: none; cursor: pointer; padding: 6px; }
.menu-toggle span { width: 26px; height: 3px; background: #fff; border-radius: 3px; transition: var(--transition); }

/* ---------- Hero (sombre + lueur verte + réseau de procédé) ---------- */
.hero {
    position: relative;
    background:
        radial-gradient(circle at 82% 8%, rgba(34, 197, 94, 0.18), transparent 42%),
        radial-gradient(circle at 5% 100%, rgba(22, 163, 74, 0.14), transparent 45%),
        linear-gradient(160deg, #0b1a2e 0%, #0a1728 55%, #08111f 100%);
    color: #fff;
    padding: 92px 0 84px;
    overflow: hidden;
}
.hero::after {
    content: ""; position: absolute; inset: 0; pointer-events: none; opacity: 0.5;
    background-image:
        linear-gradient(rgba(255,255,255,0.035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.035) 1px, transparent 1px);
    background-size: 46px 46px;
    -webkit-mask-image: radial-gradient(circle at 70% 30%, #000, transparent 75%);
            mask-image: radial-gradient(circle at 70% 30%, #000, transparent 75%);
}
.hero__inner { position: relative; z-index: 1; display: grid; grid-template-columns: 1.08fr 0.92fr; gap: 48px; align-items: center; }
.hero__surtitre {
    display: inline-block; background: rgba(34, 197, 94, 0.14); color: var(--vert-clair);
    border: 1px solid rgba(34, 197, 94, 0.3);
    padding: 6px 15px; border-radius: 30px; font-size: 0.82rem; font-weight: 600; margin-bottom: 20px;
    letter-spacing: 0.3px;
}
.hero__titre { font-size: 3rem; margin-bottom: 20px; color: #fff; }
.hero__titre .accent { color: var(--vert-clair); }
.hero__accroche { font-size: 1.15rem; color: var(--texte-inv); margin-bottom: 30px; max-width: 540px; }
.hero__actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero__meta { margin-top: 22px; font-weight: 500; color: var(--texte-inv-doux); font-size: 0.92rem; }

/* Visuel du hero : mini-synoptique animé */
.hero__visuel { position: relative; height: 340px; }
.hero__panneau {
    position: absolute; inset: 0;
    background: linear-gradient(160deg, rgba(20, 42, 66, 0.9), rgba(12, 26, 44, 0.9));
    border: 1px solid var(--navy-bord); border-radius: 18px;
    box-shadow: var(--ombre-forte); overflow: hidden;
}
.hero__panneau::before {
    content: "● ● ●  UNITÉ — SIMULATEUR"; position: absolute; top: 0; left: 0; right: 0;
    padding: 10px 16px; font-size: 0.7rem; letter-spacing: 1px; color: var(--texte-inv-doux);
    border-bottom: 1px solid var(--navy-bord); background: rgba(10, 23, 40, 0.5);
}
.hero__carte {
    position: absolute; background: rgba(15, 35, 55, 0.92); border: 1px solid var(--navy-bord);
    border-radius: 12px; box-shadow: var(--ombre-forte);
    padding: 14px 18px; font-weight: 600; font-size: 0.92rem; color: #fff;
    display: flex; align-items: center; gap: 9px;
    animation: flotte 4.5s ease-in-out infinite;
}
.hero__carte small { display: block; font-weight: 500; font-size: 0.72rem; color: var(--vert-clair); }
.hero__carte--1 { top: 58px; left: 22px; animation-delay: 0s; }
.hero__carte--2 { top: 148px; right: 20px; animation-delay: 0.9s; }
.hero__carte--3 { bottom: 26px; left: 46px; animation-delay: 1.8s; }
.hero__pouls {
    width: 9px; height: 9px; border-radius: 50%; background: var(--vert);
    box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.6); animation: pouls 1.8s infinite;
}
@keyframes flotte { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
@keyframes pouls {
    0% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0.55); }
    70% { box-shadow: 0 0 0 12px rgba(34, 197, 94, 0); }
    100% { box-shadow: 0 0 0 0 rgba(34, 197, 94, 0); }
}

/* ---------- Bandeau chiffres ---------- */
.chiffres {
    background: var(--navy-2);
    border-top: 1px solid rgba(255,255,255,0.06);
    border-bottom: 1px solid rgba(255,255,255,0.06);
}
.chiffres__grille { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; padding: 34px 0; }
.chiffre { text-align: center; color: #fff; }
.chiffre__valeur { font-size: 1.9rem; font-weight: 800; color: var(--vert-clair); }
.chiffre__label { color: var(--texte-inv-doux); font-size: 0.92rem; }

/* ---------- Sections ---------- */
.section { padding: 74px 0; }
.section--gris { background: var(--gris); }
.section--sombre { background: var(--navy); color: #fff; }
.section--sombre h2, .section--sombre h3 { color: #fff; }
.section__entete { text-align: center; max-width: 640px; margin: 0 auto 48px; }
.section__entete h2 { font-size: 2.1rem; margin-bottom: 12px; }
.section__entete p { color: var(--texte-doux); font-size: 1.1rem; }
.section--sombre .section__entete p { color: var(--texte-inv); }
.section__surtitre {
    display: inline-block; color: var(--vert-fonce); font-weight: 700;
    font-size: 0.82rem; letter-spacing: 1.5px; text-transform: uppercase; margin-bottom: 10px;
}
.section--sombre .section__surtitre { color: var(--vert-clair); }

/* ---------- Valeurs (atouts) ---------- */
.atouts { display: grid; grid-template-columns: repeat(5, 1fr); gap: 22px; }
.atout { text-align: center; padding: 8px; }
.atout__icone {
    width: 66px; height: 66px; margin: 0 auto 16px; border-radius: 18px;
    display: grid; place-items: center; font-size: 1.8rem;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.16), rgba(22, 163, 74, 0.28));
    border: 1px solid rgba(34, 197, 94, 0.28);
}
.atout h3 { font-size: 1.08rem; margin-bottom: 8px; }
.atout p { color: var(--texte-doux); font-size: 0.92rem; }
.section--sombre .atout p { color: var(--texte-inv); }

/* ---------- Cartes services ---------- */
.cartes { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 24px; }
.carte {
    background: #fff; border: 1px solid var(--gris-bord); border-radius: var(--radius);
    padding: 28px; transition: all var(--transition); position: relative;
}
.carte:hover { box-shadow: var(--ombre-forte); transform: translateY(-4px); border-color: rgba(34,197,94,0.4); }
.carte__icone {
    font-size: 1.6rem; width: 58px; height: 58px; border-radius: 14px; margin-bottom: 16px;
    display: grid; place-items: center;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.14), rgba(22, 163, 74, 0.22));
}
.carte__titre { font-size: 1.22rem; margin-bottom: 8px; }
.carte__accroche { color: var(--texte-doux); margin-bottom: 16px; font-size: 0.95rem; }
.carte__lien { font-weight: 600; }

/* ---------- Timeline / démarche ---------- */
.demarche { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.jalon { position: relative; padding: 8px; text-align: center; }
.jalon__num {
    width: 52px; height: 52px; margin: 0 auto 16px; border-radius: 50%;
    display: grid; place-items: center; font-size: 1.3rem; font-weight: 800; color: #06231a;
    background: linear-gradient(135deg, var(--vert-clair), var(--vert-fonce));
    box-shadow: 0 0 0 6px rgba(34, 197, 94, 0.12); position: relative; z-index: 1;
}
.demarche .jalon:not(:last-child)::after {
    content: ""; position: absolute; top: 34px; left: 50%; width: 100%; height: 2px;
    background: repeating-linear-gradient(90deg, var(--gris-bord) 0 8px, transparent 8px 16px);
    z-index: 0;
}
.jalon h3 { font-size: 1.02rem; margin-bottom: 8px; }
.jalon p { color: var(--texte-doux); font-size: 0.9rem; }

/* ---------- Secteurs ---------- */
.secteurs { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 22px; }
.secteur {
    background: var(--navy-2); border: 1px solid rgba(255,255,255,0.07); border-radius: var(--radius);
    padding: 26px; transition: all var(--transition); color: #fff;
}
.secteur:hover { transform: translateY(-4px); border-color: rgba(34,197,94,0.45); box-shadow: var(--ombre-forte); }
.secteur__icone { font-size: 2rem; margin-bottom: 14px; }
.secteur h3 { color: #fff; font-size: 1.2rem; margin-bottom: 8px; }
.secteur p { color: var(--texte-inv); font-size: 0.93rem; }

.secteurs-pills { display: flex; flex-wrap: wrap; gap: 10px; justify-content: center; margin-top: 8px; }
.secteurs-pills span {
    background: rgba(34,197,94,0.1); color: var(--vert-fonce); border: 1px solid rgba(34,197,94,0.28);
    padding: 7px 16px; border-radius: 30px; font-weight: 600; font-size: 0.9rem;
}

/* ---------- Bloc service détaillé ---------- */
.service {
    background: #fff; border: 1px solid var(--gris-bord); border-radius: var(--radius);
    padding: 34px; margin-bottom: 26px; scroll-margin-top: 90px;
}
.service__entete { display: flex; align-items: center; gap: 18px; margin-bottom: 18px; }
.service__icone {
    font-size: 1.8rem; width: 62px; height: 62px; border-radius: 16px; flex-shrink: 0;
    display: grid; place-items: center;
    background: linear-gradient(135deg, rgba(34, 197, 94, 0.16), rgba(22, 163, 74, 0.26));
}
.service__num { color: var(--vert-fonce); font-weight: 800; font-size: 0.9rem; letter-spacing: 1px; }
.service__titre { font-size: 1.5rem; }
.service__accroche { color: var(--texte-doux); margin-bottom: 22px; font-size: 1.02rem; }
.liste-check { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 8px 24px; }
.liste-check li { padding: 6px 0 6px 28px; position: relative; }
.liste-check li::before {
    content: "✓"; position: absolute; left: 0; color: var(--vert-fonce); font-weight: 800;
}

/* ---------- Bannière de page ---------- */
.banniere {
    position: relative; overflow: hidden;
    background:
        radial-gradient(circle at 85% 0%, rgba(34, 197, 94, 0.2), transparent 45%),
        linear-gradient(150deg, #0b1a2e, #0a1728);
    color: #fff; padding: 72px 0; text-align: center;
}
.banniere::after {
    content: ""; position: absolute; inset: 0; opacity: 0.4; pointer-events: none;
    background-image:
        linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
    background-size: 44px 44px;
    -webkit-mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
            mask-image: radial-gradient(circle at 80% 20%, #000, transparent 70%);
}
.banniere__inner { position: relative; z-index: 1; }
.banniere h1 { color: #fff; font-size: 2.5rem; margin-bottom: 12px; }
.banniere p { color: var(--texte-inv); font-size: 1.12rem; max-width: 660px; margin: 0 auto; }

/* ---------- FAQ (accordéon) ---------- */
.faq__categorie { font-size: 1.3rem; margin: 34px 0 16px; }
.faq__categorie:first-child { margin-top: 0; }
.faq { display: flex; flex-direction: column; gap: 12px; }
.faq__item {
    border: 1px solid var(--gris-bord); border-radius: 12px; overflow: hidden; background: #fff;
    transition: box-shadow var(--transition);
}
.faq__item.ouvert { box-shadow: var(--ombre); border-color: var(--vert); }
.faq__question {
    width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
    padding: 18px 20px; background: none; border: none; cursor: pointer; text-align: left;
    font-size: 1.02rem; font-weight: 600; color: var(--navy); font-family: inherit;
}
.faq__question:hover { color: var(--vert-fonce); }
.faq__chevron {
    flex-shrink: 0; font-size: 1.3rem; color: var(--vert-fonce); transition: transform var(--transition);
    line-height: 1;
}
.faq__item.ouvert .faq__chevron { transform: rotate(45deg); }
.faq__reponse {
    max-height: 0; overflow: hidden; transition: max-height 0.3s ease, padding 0.3s ease; padding: 0 20px;
}
.faq__item.ouvert .faq__reponse { max-height: 420px; padding: 0 20px 18px; }
.faq__reponse p { color: var(--texte-doux); }
.faq__cta { text-align: center; margin-top: 40px; }
.faq__cta p { margin-bottom: 14px; color: var(--texte-doux); }

/* ---------- CTA ---------- */
.cta { text-align: center; }
.cta__inner {
    position: relative; overflow: hidden;
    background:
        radial-gradient(circle at 12% 20%, rgba(34, 197, 94, 0.28), transparent 45%),
        linear-gradient(135deg, #0f2337, #0a1728);
    color: #fff; border-radius: 24px; padding: 58px 30px; max-width: 940px; margin: 0 auto;
    border: 1px solid var(--navy-bord);
}
.cta__inner h2 { color: #fff; font-size: 2rem; margin-bottom: 10px; }
.cta__inner p { color: var(--texte-inv); margin-bottom: 26px; font-size: 1.1rem; }

/* ---------- Formulaires ---------- */
.formulaire { background: #fff; }
.champ { margin-bottom: 20px; }
.champ label { display: block; font-weight: 600; margin-bottom: 8px; font-size: 0.95rem; }
.requis { color: #e11d48; }
.champ input, .champ select, .champ textarea {
    width: 100%; padding: 12px 14px; border: 1px solid var(--gris-bord); border-radius: 10px;
    font-size: 1rem; font-family: inherit; transition: border var(--transition), box-shadow var(--transition);
    background: #fff;
}
.champ input:focus, .champ select:focus, .champ textarea:focus {
    outline: none; border-color: var(--vert); box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.15);
}
.champ-grille { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.erreur { color: #e11d48; font-size: 0.85rem; margin-top: 5px; display: block; }
.form-consent { margin-top: 14px; font-size: 0.85rem; color: var(--texte-doux); }

/* ---------- Alertes ---------- */
.alerte { padding: 16px 20px; border-radius: 10px; margin-bottom: 24px; font-weight: 500; }
.alerte--succes { background: rgba(34, 197, 94, 0.12); color: #15803d; border: 1px solid rgba(34, 197, 94, 0.35); }
.alerte--erreur { background: rgba(225, 29, 72, 0.08); color: #be123c; border: 1px solid rgba(225, 29, 72, 0.25); }

/* ---------- Contact ---------- */
.contact-grille { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 40px; align-items: start; }
.contact-infos { background: var(--navy-2); color: #fff; padding: 32px; border-radius: var(--radius); }
.contact-infos h3 { color: #fff; margin-bottom: 18px; }
.contact-infos p { margin-bottom: 16px; color: var(--texte-inv); }
.contact-infos a { color: var(--vert-clair); }
.contact-infos strong { color: #fff; }

/* ---------- Pied de page ---------- */
.pied { background: var(--navy); color: var(--texte-inv-doux); padding-top: 52px; }
.pied__grille { display: grid; grid-template-columns: 2fr 1fr 1.2fr; gap: 30px; padding-bottom: 40px; }
.logo__marque--pied { display: inline-block; margin-bottom: 12px; color: var(--vert-clair); }
.pied__slogan { max-width: 340px; color: var(--texte-inv); }
.pied__secteurs { margin-top: 12px; font-size: 0.85rem; color: var(--texte-inv-doux); letter-spacing: 0.3px; }
.pied__col h4 { color: #fff; margin-bottom: 14px; font-size: 1rem; }
.pied__col a { display: block; color: var(--texte-inv-doux); padding: 4px 0; }
.pied__col a:hover { color: var(--vert-clair); }
.pied__bas { border-top: 1px solid rgba(255, 255, 255, 0.1); padding: 20px 0; font-size: 0.9rem; }
.pied__bas-inner { display: flex; align-items: center; justify-content: space-between; gap: 12px; flex-wrap: wrap; }
.pied__bas-inner p { margin: 0; }
.pied__legal { color: var(--texte-inv-doux); }
.pied__legal:hover { color: var(--vert-clair); text-decoration: underline; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
    .atouts { grid-template-columns: repeat(3, 1fr); }
    .demarche { grid-template-columns: repeat(2, 1fr); }
    .demarche .jalon::after { display: none; }
    .chiffres__grille { grid-template-columns: repeat(2, 1fr); gap: 26px; }
}

@media (max-width: 860px) {
    .menu-toggle { display: flex; }
    .nav {
        position: absolute; top: 74px; left: 0; right: 0;
        flex-direction: column; align-items: stretch; gap: 0;
        background: var(--navy-2); border-bottom: 1px solid rgba(255,255,255,0.08);
        padding: 10px 20px 20px; box-shadow: var(--ombre-forte);
        display: none;
    }
    .nav.ouvert { display: flex; }
    .nav__lien { padding: 12px 10px; border-radius: 8px; }
    .nav__cta { margin: 10px 0 0; }

    .hero__inner { grid-template-columns: 1fr; }
    .hero__visuel { display: none; }
    .hero__titre { font-size: 2.2rem; }

    .contact-grille { grid-template-columns: 1fr; }
    .pied__grille { grid-template-columns: 1fr 1fr; }
    .liste-check { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
    .atouts { grid-template-columns: 1fr 1fr; }
    .demarche { grid-template-columns: 1fr; }
    .champ-grille { grid-template-columns: 1fr; }
    .pied__grille { grid-template-columns: 1fr; }
    .hero__titre { font-size: 1.9rem; }
    .banniere h1 { font-size: 1.95rem; }
    .service__entete { flex-wrap: wrap; }
    .pied__bas-inner { justify-content: center; text-align: center; }
}